dashboard: add Notepad widget

src/opnsense/mvc/app/controllers/OPNsense/Core/Api/DashboardController.php

@@ -163,7 +163,7 @@ public function saveWidgetsAction()
             $dashboard = json_encode($this->request->getPost());
             if (strlen($dashboard) > (1024 * 1024)) {
                 // prevent saving large blobs of data
-                $result['message'] = 'dashboard size limit reached';
+                $result['message'] = 'Dashboard size limit reached';
             } elseif (($node = $this->usermdl->getUserByName($this->getUserName())) !== null) {
                 $node->dashboard = base64_encode($dashboard);
                 if ($this->usermdl->serializeToConfig(false, true)) {

src/opnsense/www/js/opnsense_widget_manager.js

@@ -414,6 +414,7 @@ class WidgetManager  {
                                     $('.link-handle').hide();
                                     $('.close-handle').show();
                                     $('.edit-handle').show();
+                                    $('.title-invisible').css('display', '');
                                 }
 
                                 changed = true;
@@ -808,6 +809,19 @@ class WidgetManager  {
                     $option.append($(`<div><b>${value.title}</b></div>`));
                     $option.append($select);
                     break;
+                case 'textarea':
+                    let $textarea = $(`<textarea
+                                     id="${value.id}"
+                                     maxlength="${value.maxlength || 8192}"
+                                     class="form-control"
+                                     style="
+                                         max-width: 100%;
+                                         resize: vertical;
+                                         min-height: ${value.minHeight || '150px'};
+                                         box-sizing: border-box;
+                                     ">${config[key] || ''}</textarea>`);
+                    $option.append($textarea);
+                    break;
                 default:
                     console.error('Unknown option type', value.type);
                     continue;
@@ -816,28 +830,33 @@ class WidgetManager  {
             $content.append($option);
         }
 
+        const hasTextarea = Object.values(options).some(v => v.type === 'textarea');
+        const modalTitle = widget.dialogTitle || this.gettext.options;
         // present widget options
         BootstrapDialog.show({
-            title: this.gettext.options,
+            title: modalTitle,
             draggable: true,
             animate: false,
             message: $content,
             buttons: [{
                 label: this.gettext.ok,
-                hotkey: 13,
+                hotkey: hasTextarea ? undefined : 13,
                 action: async (dialog) => {
                     let values = {};
                     for (const [key, value] of Object.entries(options)) {
                         switch (value.type) {
                             case 'select':
                                 values[key] = $(`#${value.id}`).val() ?? value.default;
-                            break;
+                                break;
                             case 'select_multiple':
                                 values[key] = $(`#${value.id}`).val();
                                 if (values[key].count === 0) {
                                     values[key] = value.default;
                                 }
                                 break;
+                            case 'textarea':
+                                values[key] = $(`#${value.id}`).val() ?? value.default;
+                                break;
                             default:
                                 console.error('Unknown option type', value.type);
                         }

src/opnsense/www/js/widgets/BaseWidget.js

@@ -106,6 +106,10 @@ class BaseWidget {
         return {};
     }
 
+    get dialogTitle() {
+        return null;
+    }
+
     getMarkup() {
         return $("");
     }

src/opnsense/www/js/widgets/Metadata/Core.xml

@@ -385,4 +385,11 @@
             <notavailable>N/A</notavailable>
         </translations>
     </dnsmasqleases>
+    <notes>
+        <filename>Notes.js</filename>
+        <translations>
+            <title>Notes</title>
+            <titleedit>Note editor</titleedit>
+        </translations>
+    </notes>
 </metadata>

src/opnsense/www/js/widgets/Notes.js

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2026 Konstantinos Spartalis (cspartalis@potatonetworks.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+export default class Notes extends BaseWidget {
+    constructor(config) {
+        super(config);
+        this.configurable = true;
+    }
+
+    getGridOptions() {
+        return {
+            minH: 82,
+        }
+    }
+
+    get dialogTitle() {
+        return this.translations.titleedit;
+    }
+
+    getMarkup() {
+        return $(`
+        <div id="notes-container-${this.id}" class="widget-content">
+            <div id="notes-text-${this.id}" style="padding: 10px; white-space: pre-wrap; word-wrap: break-word;"></div>
+        </div>
+        `);
+    }
+
+    async getWidgetOptions() {
+        return {
+            note: {
+                title: this.translations.title,
+                type: 'textarea',
+                id: `notes-option-${this.id}`,
+                default: '',
+            },
+        };
+    }
+
+    async onWidgetOptionsChanged(options) {
+        $(`#notes-text-${this.id}`).text(options.note || '');
+        this.config.callbacks.updateGrid();
+    }
+
+    async onMarkupRendered() {
+        const config = await this.getWidgetConfig();
+        const note = config.note || '';
+
+        $(`#notes-text-${this.id}`).text(note);
+    }
+}