Merge pull request #27 from AleziaKurdis/App_Expozer

Add the "Expozer" app
overte-org · Jul 30, 2023 · cb3a289 · cb3a289
2 parents 503b396 + 8b5b343
commit cb3a289
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diff --git a/applications/expozer/app-expozer.js b/applications/expozer/app-expozer.js
@@ -0,0 +1,201 @@
+//
+//  app-expozer.js
+//
+//  Created by Alezia Kurdis, June 17th 2023.
+//  Copyright 2023 Overte e.V.
+//
+//  Overte Application to read the data of the entities around you.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+(function() {
+    var jsMainFileName = "app-expozer.js";
+    var ROOT = Script.resolvePath('').split(jsMainFileName)[0];
+
+    var APP_NAME = "EXPOZER";
+    var APP_URL = ROOT + "expozer.html";
+    var APP_ICON_INACTIVE = ROOT + "images/appicon_i.png";
+    var APP_ICON_ACTIVE = ROOT + "images/appicon_a.png";
+    var appStatus = false;
+    var channel = "overte.application.ak.expozer";
+    var timestamp = 0;
+    var INTERCALL_DELAY = 200; //0.3 sec
+    var REQUEST_TIMEOUT = 10000; //10 seconds
+    var showSelectedID = Uuid.NULL;
+
+    var radius = Settings.getValue("entityListDefaultRadius", 300);
+
+    var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
+
+    tablet.screenChanged.connect(onScreenChanged);
+
+    var button = tablet.addButton({
+        text: APP_NAME,
+        icon: APP_ICON_INACTIVE,
+        activeIcon: APP_ICON_ACTIVE
+    });
+
+
+    function clicked(){
+        if (appStatus === true) {
+            tablet.webEventReceived.disconnect(onAppWebEventReceived);
+            tablet.gotoHomeScreen();
+            appStatus = false;
+        }else{
+            //Launching the Application UI.
+            tablet.gotoWebScreen(APP_URL + "?radius=" + radius);
+            tablet.webEventReceived.connect(onAppWebEventReceived);
+            appStatus = true;
+        }
+
+        button.editProperties({
+            isActive: appStatus
+        });
+    }
+
+    button.clicked.connect(clicked);
+
+    //This recieved the message from the UI(html) for a specific actions
+    function onAppWebEventReceived(message) {
+        if (typeof message === "string") {
+            var d = new Date();
+            var n = d.getTime();
+            var instruction = JSON.parse(message);
+            if (instruction.channel === channel) {
+                if (instruction.action === "REFRESH") {
+                    d = new Date();
+                    timestamp = d.getTime();
+                    radius = instruction.radius;
+                    refresh();
+                } else if (instruction.action === "GET_FILE" && (n - timestamp) > INTERCALL_DELAY) {
+                    d = new Date();
+                    timestamp = d.getTime();
+                    readAndReturnFile(instruction.url);
+                } else if (instruction.action === "SHOW_ENTITY") {
+                    d = new Date();
+                    timestamp = d.getTime();
+                    setShowEntity(instruction.position, instruction.rotation, instruction.dimensions);
+                } else if (instruction.action === "REMOVE_SHOW_ENTITY") {
+                    removeShowEntity();
+                } else if (instruction.action === "SELF_UNINSTALL" && (n - timestamp) > INTERCALL_DELAY) {
+                    d = new Date();
+                    timestamp = d.getTime();
+                    ScriptDiscoveryService.stopScript(Script.resolvePath(''), false);
+                }
+            }
+        }
+    }
+
+    function setShowEntity(position, rotation, dimensions) {
+        removeShowEntity();
+        showSelectedID = Entities.addEntity({
+            "type": "Shape",
+            "shape": "Cube",
+            "name": "ShowEntity(Expozer Tool)",
+            "position": position,
+            "dimensions": dimensions,
+            "rotation": rotation,
+            "color": {"red": 255, "green": 196, "blue": 0},
+            "grab": {
+                "grabbable": false
+            },
+            "renderLayer": "front",
+            "primitiveMode": "lines"
+        }, "local");
+
+        var toolEntitiesMaterialData = "{\n  \"materialVersion\": 1,\n  \"materials\": [\n    {\n      \"name\": \"0\",\n      \"defaultFallthrough\": true,\n      \"unlit\": true,\n      \"model\": \"hifi_pbr\"\n    }\n  ]\n}";
+        var materialEntityID = Entities.addEntity({
+            "type": "Material",
+            "parentID": showSelectedID,
+            "name": "ShowEntity(Expozer Tool) unlit material",
+            "parentMaterialName": "0",
+            "materialURL": "materialData",
+            "priority": 1,
+            "materialMappingMode": "uv",
+            "ignorePickIntersection": true,
+            "materialData": toolEntitiesMaterialData
+        }, "local");
+    }
+
+    function removeShowEntity() {
+        if (showSelectedID !== Uuid.NULL) {
+            Entities.deleteEntity(showSelectedID);
+            showSelectedID = Uuid.NULL;
+        }
+    }
+
+    function readAndReturnFile(url) {
+        var data = getContent(url);
+        var message = {
+            "channel": channel,
+            "action": "SHOW_FILE",
+            "data": data,
+            "url": url
+        };
+
+        tablet.emitScriptEvent(JSON.stringify(message));
+    }
+
+    function getContent(url) {
+        httpRequest = new XMLHttpRequest();
+        httpRequest.open("GET", url, false); // false for synchronous request
+        httpRequest.setRequestHeader("Cache-Control", "no-cache");
+        httpRequest.timeout = REQUEST_TIMEOUT;
+        httpRequest.ontimeout=function(){ 
+            return ""; 
+        };        
+        httpRequest.send( null );
+        return httpRequest.responseText;
+    }
+
+    function refresh() {
+        var datalist = [];
+
+        //Domain & Avatar entities
+        var domAvListOfIDs = Entities.findEntities(MyAvatar.position, radius);
+        for (var i=0; i < domAvListOfIDs.length; i++) {
+            datalist.push(Entities.getEntityProperties(domAvListOfIDs[i]));
+        }
+        //Local entities
+        var locListOfIDs = Overlays.findOverlays(MyAvatar.position, radius);
+        for (var i=0; i < locListOfIDs.length; i++) {
+            datalist.push(Entities.getEntityProperties(locListOfIDs[i]));
+        }
+
+        var message = {
+            "channel": channel,
+            "action": "DATA_REFRESH",
+            "data": datalist
+        };
+
+        tablet.emitScriptEvent(JSON.stringify(message));
+    }
+
+    function onScreenChanged(type, url) {
+        if (type === "Web" && url.indexOf(APP_URL) !== -1) {
+            appStatus = true;
+        } else {
+            appStatus = false;
+            removeShowEntity();
+        }
+
+        button.editProperties({
+            isActive: appStatus
+        });
+    }
+
+    function cleanup() {
+        removeShowEntity();
+        if (appStatus) {
+            tablet.gotoHomeScreen();
+            tablet.webEventReceived.disconnect(onAppWebEventReceived);
+        }
+
+        tablet.screenChanged.disconnect(onScreenChanged);
+        tablet.removeButton(button);
+    }
+
+    Script.scriptEnding.connect(cleanup);
+    refresh();
+}());