Handler for qextension: url reqeiring works.

assets/browser/js/qwebchannel.js

-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Copyright (C) 2016 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtWebChannel module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2016 The Qt Company Ltd.
+// Copyright (C) 2016 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
 "use strict";
 
@@ -53,7 +17,7 @@ var QWebChannelMessageTypes = {
     response: 10,
 };
 
-var QWebChannel = function(transport, initCallback)
+var QWebChannel = function(transport, initCallback, converters)
 {
     if (typeof transport !== "object" || typeof transport.send !== "function") {
         console.error("The QWebChannel expects a transport object with a send function and onmessage callback property." +
@@ -64,6 +28,43 @@ var QWebChannel = function(transport, initCallback)
     var channel = this;
     this.transport = transport;
 
+    var converterRegistry =
+    {
+        Date : function(response) {
+            if (typeof response === "string"
+                && response.match(
+                        /^-?\d+-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d*)?([-+\u2212](\d{2}):(\d{2})|Z)?$/)) {
+                var date = new Date(response);
+                if (!isNaN(date))
+                    return date;
+            }
+            return undefined; // Return undefined if current converter is not applicable
+        }
+    };
+
+    this.usedConverters = [];
+
+    this.addConverter = function(converter)
+    {
+        if (typeof converter === "string") {
+            if (converterRegistry.hasOwnProperty(converter))
+                this.usedConverters.push(converterRegistry[converter]);
+            else
+                console.error("Converter '" + converter + "' not found");
+        } else if (typeof converter === "function") {
+            this.usedConverters.push(converter);
+        } else {
+            console.error("Invalid converter object type " + typeof converter);
+        }
+    }
+
+    if (Array.isArray(converters)) {
+        for (const converter of converters)
+            this.addConverter(converter);
+    } else if (converters !== undefined) {
+        this.addConverter(converters);
+    }
+
     this.send = function(data)
     {
         if (typeof(data) !== "string") {
@@ -190,6 +191,12 @@ function QObject(name, data, webChannel)
 
     this.unwrapQObject = function(response)
     {
+        for (const converter of webChannel.usedConverters) {
+            var result = converter(response);
+            if (result !== undefined)
+                return result;
+        }
+
         if (response instanceof Array) {
             // support list of objects
             return response.map(qobj => object.unwrapQObject(qobj))
@@ -445,4 +452,4 @@ if (typeof module === 'object') {
     module.exports = {
         QWebChannel: QWebChannel
     };
-}
+}
\ No newline at end of file