CallEachWithJs
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Irony
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commit
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9 changed files with 794 additions and 0 deletions
61
QWebChannel/CallEachWithJs.py
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61
QWebChannel/CallEachWithJs.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2021/12/15
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@author: Irony
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@site: https://pyqt.site , https://github.com/PyQt5
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@email: 892768447@qq.com
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@file: CallEachWithJs.py
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@description: 与JS之间的互相调用
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"""
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import os
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from PyQt5.QtCore import QUrl, pyqtSlot
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from PyQt5.QtGui import QDesktopServices
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from PyQt5.QtWidgets import (QApplication, QLineEdit, QPushButton, QVBoxLayout,
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QWidget)
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from Lib.WebChannelObject import WebChannelObject
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class Window(QWidget):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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self.m_obj = WebChannelObject(self)
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# 注册该窗口,可以访问该窗口的属性，槽函数，信号
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# https://doc.qt.io/qt-5/qwidget.html#properties
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# https://doc.qt.io/qt-5/qwidget.html#signals
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# https://doc.qt.io/qt-5/qwidget.html#public-slots
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self.m_obj.registerObject('qtwindow', self)
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self.m_obj.start()
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layout = QVBoxLayout(self)
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self.editTitle = QLineEdit(self, placeholderText='输入标题')
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layout.addWidget(self.editTitle)
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layout.addWidget(QPushButton('修改标题', self, clicked=self.onChangeTitle))
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QDesktopServices.openUrl(
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QUrl.fromLocalFile(
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os.path.join(os.path.dirname(sys.argv[0] or __file__),
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'Data/CallEachWithJs.html')))
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def onChangeTitle(self):
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self.setWindowTitle(self.editTitle.text())
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# ------- 把非槽函数通过pyqtSlot重新暴露 -------
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@pyqtSlot(int, int)
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def resize(self, width, height):
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super().resize(width, height)
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if __name__ == '__main__':
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import cgitb
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import sys
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cgitb.enable(format='text')
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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76
QWebChannel/Data/CallEachWithJs.html
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76
QWebChannel/Data/CallEachWithJs.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<script type="text/javascript" src="./qwebchannel.js"></script>
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<script type="text/javascript">
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function appendText(message) {
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// 添加输出到页面
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var textArea = document.getElementById("textArea");
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output.innerHTML = output.innerHTML + message + "\n";
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}
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window.onload = function () {
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// 创建websocket
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var socket = new WebSocket("ws://localhost:12345");
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socket.onclose = function () {
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appendText("WebSocket连接关闭");
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};
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socket.onerror = function () {
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appendText("WebSocket连接发生错误");
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};
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socket.onopen = function () {
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appendText("WebSocket连接成功");
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// 创建webchannel
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window.channel = new QWebChannel(socket, function (channel) {
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// 重点：把注册的对象全部设为全局,注册了多少个就设置多少个
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window.WebChannelObject = channel.objects.WebChannelObject;
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window.qtwindow = channel.objects.qtwindow;
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// 绑定窗口标题变化信号
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window.qtwindow.windowTitleChanged.connect(function (title) {
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appendText('标题变化：' + title);
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});
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});
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};
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}
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</script>
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</head>
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<body>
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<span>输出：</span><br /><textarea id="output" style="width:400px;height:200px;"></textarea><br /><br />
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<input type="button" value="设置属性（int）= 100" onclick="javascript: window.WebChannelObject.intValue = 100;" />
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<input type="button" value="获取属性（int）"
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onclick="javascript: appendText('intValue:' + window.WebChannelObject.intValue);" /><br /><br />
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<input type="button" value="设置属性（float）= 99.9" onclick="javascript: window.WebChannelObject.floatValue = 99.9;" />
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<input type="button" value="获取属性（float）"
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onclick="javascript: appendText('floatValue:' + window.WebChannelObject.floatValue);" /><br /><br />
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<input type="button" value="设置属性（str）= Irony" onclick="javascript: window.WebChannelObject.strValue = 'Irony';" />
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<input type="button" value="获取属性（str）"
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onclick="javascript: appendText('strValue:' + window.WebChannelObject.strValue);" /><br /><br />
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<input type="button" value="设置属性（bool）= true" onclick="javascript: window.WebChannelObject.boolValue = true;" />
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<input type="button" value="获取属性（bool）"
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onclick="javascript: appendText('boolValue:' + window.WebChannelObject.boolValue);" /><br /><br />
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<!-- <input type="button" value="设置属性（list）= [1, '2', false]"
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onclick="javascript: window.WebChannelObject.listValue = [1, '2', false];" />
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<input type="button" value="获取属性（list）"
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onclick="javascript: appendText('listValue:' + window.WebChannelObject.listValue);" /><br /><br />
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<input type="button" value="设置属性（map）= {'key1': 1, 'key2': '2', 'key3': false}"
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onclick="javascript: window.WebChannelObject.mapValue = {'key1': 1, 'key2': '2', 'key3': false};" />
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<input type="button" value="获取属性（map）"
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onclick="javascript: appendText('mapValue:' + window.WebChannelObject.mapValue);" /><br /><br /> -->
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<input type="button" value="调用加法（testAdd(1, 2)）"
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onclick="javascript: window.WebChannelObject.testAdd(1, 2, function(result) { appendText('testAdd ret:' + result); });" /><br /><br />
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<input type="button" value="设置窗口大小（resize(400, 400)）" onclick="javascript: window.qtwindow.resize(400, 400);" />
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</body>
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</html>
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448
QWebChannel/Data/qwebchannel.js
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448
QWebChannel/Data/qwebchannel.js
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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Copyright (C) 2016 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtWebChannel module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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"use strict";
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var QWebChannelMessageTypes = {
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signal: 1,
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propertyUpdate: 2,
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init: 3,
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idle: 4,
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debug: 5,
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invokeMethod: 6,
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connectToSignal: 7,
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disconnectFromSignal: 8,
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setProperty: 9,
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response: 10,
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};
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var QWebChannel = function(transport, initCallback)
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{
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if (typeof transport !== "object" || typeof transport.send !== "function") {
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console.error("The QWebChannel expects a transport object with a send function and onmessage callback property." +
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" Given is: transport: " + typeof(transport) + ", transport.send: " + typeof(transport.send));
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return;
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}
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var channel = this;
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this.transport = transport;
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this.send = function(data)
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{
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if (typeof(data) !== "string") {
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data = JSON.stringify(data);
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}
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channel.transport.send(data);
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}
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this.transport.onmessage = function(message)
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{
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var data = message.data;
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if (typeof data === "string") {
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data = JSON.parse(data);
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}
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switch (data.type) {
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case QWebChannelMessageTypes.signal:
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channel.handleSignal(data);
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break;
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case QWebChannelMessageTypes.response:
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channel.handleResponse(data);
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break;
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case QWebChannelMessageTypes.propertyUpdate:
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channel.handlePropertyUpdate(data);
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break;
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default:
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console.error("invalid message received:", message.data);
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break;
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}
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}
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this.execCallbacks = {};
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this.execId = 0;
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this.exec = function(data, callback)
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{
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if (!callback) {
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// if no callback is given, send directly
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channel.send(data);
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return;
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}
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if (channel.execId === Number.MAX_VALUE) {
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// wrap
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channel.execId = Number.MIN_VALUE;
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}
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if (data.hasOwnProperty("id")) {
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console.error("Cannot exec message with property id: " + JSON.stringify(data));
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return;
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}
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data.id = channel.execId++;
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channel.execCallbacks[data.id] = callback;
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channel.send(data);
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};
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this.objects = {};
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this.handleSignal = function(message)
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{
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var object = channel.objects[message.object];
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if (object) {
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object.signalEmitted(message.signal, message.args);
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} else {
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console.warn("Unhandled signal: " + message.object + "::" + message.signal);
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}
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}
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this.handleResponse = function(message)
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{
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if (!message.hasOwnProperty("id")) {
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console.error("Invalid response message received: ", JSON.stringify(message));
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return;
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}
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channel.execCallbacks[message.id](message.data);
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delete channel.execCallbacks[message.id];
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}
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this.handlePropertyUpdate = function(message)
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{
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message.data.forEach(data => {
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var object = channel.objects[data.object];
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if (object) {
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object.propertyUpdate(data.signals, data.properties);
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} else {
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console.warn("Unhandled property update: " + data.object + "::" + data.signal);
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}
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});
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channel.exec({type: QWebChannelMessageTypes.idle});
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}
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this.debug = function(message)
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{
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channel.send({type: QWebChannelMessageTypes.debug, data: message});
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};
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channel.exec({type: QWebChannelMessageTypes.init}, function(data) {
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for (const objectName of Object.keys(data)) {
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new QObject(objectName, data[objectName], channel);
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}
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// now unwrap properties, which might reference other registered objects
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for (const objectName of Object.keys(channel.objects)) {
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channel.objects[objectName].unwrapProperties();
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}
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if (initCallback) {
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initCallback(channel);
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}
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channel.exec({type: QWebChannelMessageTypes.idle});
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});
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};
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function QObject(name, data, webChannel)
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{
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this.__id__ = name;
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webChannel.objects[name] = this;
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// List of callbacks that get invoked upon signal emission
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this.__objectSignals__ = {};
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// Cache of all properties, updated when a notify signal is emitted
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this.__propertyCache__ = {};
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var object = this;
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// ----------------------------------------------------------------------
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this.unwrapQObject = function(response)
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{
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if (response instanceof Array) {
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// support list of objects
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return response.map(qobj => object.unwrapQObject(qobj))
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}
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if (!(response instanceof Object))
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return response;
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if (!response["__QObject*__"] || response.id === undefined) {
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var jObj = {};
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for (const propName of Object.keys(response)) {
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jObj[propName] = object.unwrapQObject(response[propName]);
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}
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return jObj;
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}
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var objectId = response.id;
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if (webChannel.objects[objectId])
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return webChannel.objects[objectId];
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if (!response.data) {
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console.error("Cannot unwrap unknown QObject " + objectId + " without data.");
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return;
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}
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var qObject = new QObject( objectId, response.data, webChannel );
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qObject.destroyed.connect(function() {
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if (webChannel.objects[objectId] === qObject) {
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delete webChannel.objects[objectId];
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// reset the now deleted QObject to an empty {} object
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// just assigning {} though would not have the desired effect, but the
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// below also ensures all external references will see the empty map
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// NOTE: this detour is necessary to workaround QTBUG-40021
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Object.keys(qObject).forEach(name => delete qObject[name]);
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}
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});
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// here we are already initialized, and thus must directly unwrap the properties
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qObject.unwrapProperties();
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return qObject;
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}
|
||||||
|
|
||||||
|
this.unwrapProperties = function()
|
||||||
|
{
|
||||||
|
for (const propertyIdx of Object.keys(object.__propertyCache__)) {
|
||||||
|
object.__propertyCache__[propertyIdx] = object.unwrapQObject(object.__propertyCache__[propertyIdx]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function addSignal(signalData, isPropertyNotifySignal)
|
||||||
|
{
|
||||||
|
var signalName = signalData[0];
|
||||||
|
var signalIndex = signalData[1];
|
||||||
|
object[signalName] = {
|
||||||
|
connect: function(callback) {
|
||||||
|
if (typeof(callback) !== "function") {
|
||||||
|
console.error("Bad callback given to connect to signal " + signalName);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
object.__objectSignals__[signalIndex] = object.__objectSignals__[signalIndex] || [];
|
||||||
|
object.__objectSignals__[signalIndex].push(callback);
|
||||||
|
|
||||||
|
// only required for "pure" signals, handled separately for properties in propertyUpdate
|
||||||
|
if (isPropertyNotifySignal)
|
||||||
|
return;
|
||||||
|
|
||||||
|
// also note that we always get notified about the destroyed signal
|
||||||
|
if (signalName === "destroyed" || signalName === "destroyed()" || signalName === "destroyed(QObject*)")
|
||||||
|
return;
|
||||||
|
|
||||||
|
// and otherwise we only need to be connected only once
|
||||||
|
if (object.__objectSignals__[signalIndex].length == 1) {
|
||||||
|
webChannel.exec({
|
||||||
|
type: QWebChannelMessageTypes.connectToSignal,
|
||||||
|
object: object.__id__,
|
||||||
|
signal: signalIndex
|
||||||
|
});
|
||||||
|
}
|
||||||
|
},
|
||||||
|
disconnect: function(callback) {
|
||||||
|
if (typeof(callback) !== "function") {
|
||||||
|
console.error("Bad callback given to disconnect from signal " + signalName);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
object.__objectSignals__[signalIndex] = object.__objectSignals__[signalIndex] || [];
|
||||||
|
var idx = object.__objectSignals__[signalIndex].indexOf(callback);
|
||||||
|
if (idx === -1) {
|
||||||
|
console.error("Cannot find connection of signal " + signalName + " to " + callback.name);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
object.__objectSignals__[signalIndex].splice(idx, 1);
|
||||||
|
if (!isPropertyNotifySignal && object.__objectSignals__[signalIndex].length === 0) {
|
||||||
|
// only required for "pure" signals, handled separately for properties in propertyUpdate
|
||||||
|
webChannel.exec({
|
||||||
|
type: QWebChannelMessageTypes.disconnectFromSignal,
|
||||||
|
object: object.__id__,
|
||||||
|
signal: signalIndex
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Invokes all callbacks for the given signalname. Also works for property notify callbacks.
|
||||||
|
*/
|
||||||
|
function invokeSignalCallbacks(signalName, signalArgs)
|
||||||
|
{
|
||||||
|
var connections = object.__objectSignals__[signalName];
|
||||||
|
if (connections) {
|
||||||
|
connections.forEach(function(callback) {
|
||||||
|
callback.apply(callback, signalArgs);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
this.propertyUpdate = function(signals, propertyMap)
|
||||||
|
{
|
||||||
|
// update property cache
|
||||||
|
for (const propertyIndex of Object.keys(propertyMap)) {
|
||||||
|
var propertyValue = propertyMap[propertyIndex];
|
||||||
|
object.__propertyCache__[propertyIndex] = this.unwrapQObject(propertyValue);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (const signalName of Object.keys(signals)) {
|
||||||
|
// Invoke all callbacks, as signalEmitted() does not. This ensures the
|
||||||
|
// property cache is updated before the callbacks are invoked.
|
||||||
|
invokeSignalCallbacks(signalName, signals[signalName]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
this.signalEmitted = function(signalName, signalArgs)
|
||||||
|
{
|
||||||
|
invokeSignalCallbacks(signalName, this.unwrapQObject(signalArgs));
|
||||||
|
}
|
||||||
|
|
||||||
|
function addMethod(methodData)
|
||||||
|
{
|
||||||
|
var methodName = methodData[0];
|
||||||
|
var methodIdx = methodData[1];
|
||||||
|
|
||||||
|
// Fully specified methods are invoked by id, others by name for host-side overload resolution
|
||||||
|
var invokedMethod = methodName[methodName.length - 1] === ')' ? methodIdx : methodName
|
||||||
|
|
||||||
|
object[methodName] = function() {
|
||||||
|
var args = [];
|
||||||
|
var callback;
|
||||||
|
var errCallback;
|
||||||
|
for (var i = 0; i < arguments.length; ++i) {
|
||||||
|
var argument = arguments[i];
|
||||||
|
if (typeof argument === "function")
|
||||||
|
callback = argument;
|
||||||
|
else if (argument instanceof QObject && webChannel.objects[argument.__id__] !== undefined)
|
||||||
|
args.push({
|
||||||
|
"id": argument.__id__
|
||||||
|
});
|
||||||
|
else
|
||||||
|
args.push(argument);
|
||||||
|
}
|
||||||
|
|
||||||
|
var result;
|
||||||
|
// during test, webChannel.exec synchronously calls the callback
|
||||||
|
// therefore, the promise must be constucted before calling
|
||||||
|
// webChannel.exec to ensure the callback is set up
|
||||||
|
if (!callback && (typeof(Promise) === 'function')) {
|
||||||
|
result = new Promise(function(resolve, reject) {
|
||||||
|
callback = resolve;
|
||||||
|
errCallback = reject;
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
webChannel.exec({
|
||||||
|
"type": QWebChannelMessageTypes.invokeMethod,
|
||||||
|
"object": object.__id__,
|
||||||
|
"method": invokedMethod,
|
||||||
|
"args": args
|
||||||
|
}, function(response) {
|
||||||
|
if (response !== undefined) {
|
||||||
|
var result = object.unwrapQObject(response);
|
||||||
|
if (callback) {
|
||||||
|
(callback)(result);
|
||||||
|
}
|
||||||
|
} else if (errCallback) {
|
||||||
|
(errCallback)();
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
return result;
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
function bindGetterSetter(propertyInfo)
|
||||||
|
{
|
||||||
|
var propertyIndex = propertyInfo[0];
|
||||||
|
var propertyName = propertyInfo[1];
|
||||||
|
var notifySignalData = propertyInfo[2];
|
||||||
|
// initialize property cache with current value
|
||||||
|
// NOTE: if this is an object, it is not directly unwrapped as it might
|
||||||
|
// reference other QObject that we do not know yet
|
||||||
|
object.__propertyCache__[propertyIndex] = propertyInfo[3];
|
||||||
|
|
||||||
|
if (notifySignalData) {
|
||||||
|
if (notifySignalData[0] === 1) {
|
||||||
|
// signal name is optimized away, reconstruct the actual name
|
||||||
|
notifySignalData[0] = propertyName + "Changed";
|
||||||
|
}
|
||||||
|
addSignal(notifySignalData, true);
|
||||||
|
}
|
||||||
|
|
||||||
|
Object.defineProperty(object, propertyName, {
|
||||||
|
configurable: true,
|
||||||
|
get: function () {
|
||||||
|
var propertyValue = object.__propertyCache__[propertyIndex];
|
||||||
|
if (propertyValue === undefined) {
|
||||||
|
// This shouldn't happen
|
||||||
|
console.warn("Undefined value in property cache for property \"" + propertyName + "\" in object " + object.__id__);
|
||||||
|
}
|
||||||
|
|
||||||
|
return propertyValue;
|
||||||
|
},
|
||||||
|
set: function(value) {
|
||||||
|
if (value === undefined) {
|
||||||
|
console.warn("Property setter for " + propertyName + " called with undefined value!");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
object.__propertyCache__[propertyIndex] = value;
|
||||||
|
var valueToSend = value;
|
||||||
|
if (valueToSend instanceof QObject && webChannel.objects[valueToSend.__id__] !== undefined)
|
||||||
|
valueToSend = { "id": valueToSend.__id__ };
|
||||||
|
webChannel.exec({
|
||||||
|
"type": QWebChannelMessageTypes.setProperty,
|
||||||
|
"object": object.__id__,
|
||||||
|
"property": propertyIndex,
|
||||||
|
"value": valueToSend
|
||||||
|
});
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
// ----------------------------------------------------------------------
|
||||||
|
|
||||||
|
data.methods.forEach(addMethod);
|
||||||
|
|
||||||
|
data.properties.forEach(bindGetterSetter);
|
||||||
|
|
||||||
|
data.signals.forEach(function(signal) { addSignal(signal, false); });
|
||||||
|
|
||||||
|
Object.assign(object, data.enums);
|
||||||
|
}
|
||||||
|
|
||||||
|
//required for use with nodejs
|
||||||
|
if (typeof module === 'object') {
|
||||||
|
module.exports = {
|
||||||
|
QWebChannel: QWebChannel
|
||||||
|
};
|
||||||
|
}
|
||||||
195
QWebChannel/Lib/WebChannelObject.py
Normal file
195
QWebChannel/Lib/WebChannelObject.py
Normal file
|
|
@ -0,0 +1,195 @@
|
||||||
|
#!/usr/bin/env python
|
||||||
|
# -*- coding: utf-8 -*-
|
||||||
|
"""
|
||||||
|
Created on 2021/12/15
|
||||||
|
@author: Irony
|
||||||
|
@site: https://pyqt.site , https://github.com/PyQt5
|
||||||
|
@email: 892768447@qq.com
|
||||||
|
@file: WebChannelObject.py
|
||||||
|
@description: 交互对象，需要继承QObject并暴露接口
|
||||||
|
"""
|
||||||
|
|
||||||
|
from PyQt5.QtCore import (QJsonDocument, QJsonParseError, QObject,
|
||||||
|
pyqtProperty, pyqtSlot)
|
||||||
|
from PyQt5.QtNetwork import QHostAddress
|
||||||
|
from PyQt5.QtWebChannel import QWebChannel, QWebChannelAbstractTransport
|
||||||
|
from PyQt5.QtWebSockets import QWebSocketServer
|
||||||
|
|
||||||
|
|
||||||
|
class WebSocketTransport(QWebChannelAbstractTransport):
|
||||||
|
|
||||||
|
def __init__(self, socket, *args, **kwargs):
|
||||||
|
super(WebSocketTransport, self).__init__(*args, **kwargs)
|
||||||
|
self.m_socket = socket
|
||||||
|
self.m_socket.textMessageReceived.connect(self.textMessageReceived)
|
||||||
|
self.m_socket.disconnected.connect(self.deleteLater)
|
||||||
|
|
||||||
|
def sendMessage(self, message):
|
||||||
|
print('sendMessage:', message)
|
||||||
|
self.m_socket.sendTextMessage(
|
||||||
|
QJsonDocument(message).toJson(QJsonDocument.Compact).data().decode(
|
||||||
|
'utf-8', errors='ignore'))
|
||||||
|
|
||||||
|
def textMessageReceived(self, message):
|
||||||
|
print('textMessageReceived:', message)
|
||||||
|
error = QJsonParseError()
|
||||||
|
json = QJsonDocument.fromJson(message.encode('utf-8', errors='ignore'),
|
||||||
|
error)
|
||||||
|
if error.error:
|
||||||
|
print('Failed to parse message:{}, Error is:{}'.format(
|
||||||
|
message, error.errorString()))
|
||||||
|
return
|
||||||
|
if not json.isObject():
|
||||||
|
print('Received JSON message that is not an object:{}'.format(
|
||||||
|
message))
|
||||||
|
return
|
||||||
|
self.messageReceived.emit(json.object(), self)
|
||||||
|
|
||||||
|
|
||||||
|
class WebChannelObject(QObject):
|
||||||
|
|
||||||
|
def __init__(self, *args, **kwargs):
|
||||||
|
super(WebChannelObject, self).__init__(*args, **kwargs)
|
||||||
|
# 内部属性供外部调用
|
||||||
|
self._intValue = 0
|
||||||
|
self._floatValue = 0.0
|
||||||
|
self._boolValue = False
|
||||||
|
self._strValue = ''
|
||||||
|
# 设置数组或者字典有一定问题
|
||||||
|
# self._listValue = []
|
||||||
|
# self._mapValue = {}
|
||||||
|
|
||||||
|
# webchannel对象
|
||||||
|
self.m_webchannel = QWebChannel(self)
|
||||||
|
# 这里默认注册自己,这里使用了类名作为名称
|
||||||
|
self.registerObject(self.__class__.__name__, self)
|
||||||
|
# websocket服务
|
||||||
|
self.m_clients = {}
|
||||||
|
self.m_server = QWebSocketServer(self.__class__.__name__,
|
||||||
|
QWebSocketServer.NonSecureMode, self)
|
||||||
|
|
||||||
|
def registerObject(self, name, obj):
|
||||||
|
"""注册对象
|
||||||
|
@param name: 名称
|
||||||
|
@type name: str
|
||||||
|
@param obj: 对象
|
||||||
|
@type obj: QObject
|
||||||
|
"""
|
||||||
|
self.m_webchannel.registerObject(name, obj)
|
||||||
|
|
||||||
|
def registerObjects(self, objects):
|
||||||
|
"""注册多个对象
|
||||||
|
@param objects: 对象列表
|
||||||
|
@type objects: list
|
||||||
|
"""
|
||||||
|
for name, obj in objects:
|
||||||
|
self.registerObject(name, obj)
|
||||||
|
|
||||||
|
def deregisterObject(self, obj):
|
||||||
|
"""注销对象
|
||||||
|
@param obj: 对象
|
||||||
|
@type obj: QObject
|
||||||
|
"""
|
||||||
|
self.m_webchannel.deregisterObject(obj)
|
||||||
|
|
||||||
|
def deregisterObjects(self, objects):
|
||||||
|
"""注销多个对象
|
||||||
|
@param objects: 对象列表
|
||||||
|
@type objects: list
|
||||||
|
"""
|
||||||
|
for obj in objects:
|
||||||
|
self.deregisterObject(obj)
|
||||||
|
|
||||||
|
def start(self, port=12345):
|
||||||
|
"""启动服务
|
||||||
|
@param port: 端口
|
||||||
|
@type port: int
|
||||||
|
"""
|
||||||
|
if not self.m_server.listen(QHostAddress.Any, port):
|
||||||
|
raise Exception(
|
||||||
|
'Failed to create WebSocket server on port {}'.format(port))
|
||||||
|
|
||||||
|
print('WebSocket server listening on port {}'.format(port))
|
||||||
|
# 新连接信号
|
||||||
|
self.m_server.newConnection.connect(self._handleNewConnection)
|
||||||
|
|
||||||
|
def stop(self):
|
||||||
|
"""停止服务"""
|
||||||
|
self.m_server.close()
|
||||||
|
|
||||||
|
def _handleNewConnection(self):
|
||||||
|
"""新连接"""
|
||||||
|
socket = self.m_server.nextPendingConnection()
|
||||||
|
print('New WebSocket connection from {}'.format(
|
||||||
|
socket.peerAddress().toString()))
|
||||||
|
# 连接关闭信号
|
||||||
|
socket.disconnected.connect(self._handleDisconnected)
|
||||||
|
transport = WebSocketTransport(socket)
|
||||||
|
self.m_clients[socket] = transport
|
||||||
|
self.m_webchannel.connectTo(transport)
|
||||||
|
|
||||||
|
def _handleDisconnected(self):
|
||||||
|
"""连接关闭"""
|
||||||
|
socket = self.sender()
|
||||||
|
print('WebSocket connection from {} closed'.format(
|
||||||
|
socket.peerAddress()))
|
||||||
|
if socket in self.m_clients:
|
||||||
|
self.m_clients.pop(socket)
|
||||||
|
socket.deleteLater()
|
||||||
|
|
||||||
|
# ------- 下面是注册属性的方法 -------
|
||||||
|
|
||||||
|
@pyqtProperty(int)
|
||||||
|
def intValue(self):
|
||||||
|
return self._intValue
|
||||||
|
|
||||||
|
@intValue.setter
|
||||||
|
def intValue(self, value):
|
||||||
|
self._intValue = value
|
||||||
|
|
||||||
|
@pyqtProperty(float)
|
||||||
|
def floatValue(self):
|
||||||
|
return self._floatValue
|
||||||
|
|
||||||
|
@floatValue.setter
|
||||||
|
def floatValue(self, value):
|
||||||
|
self._floatValue = value
|
||||||
|
|
||||||
|
@pyqtProperty(bool)
|
||||||
|
def boolValue(self):
|
||||||
|
return self._boolValue
|
||||||
|
|
||||||
|
@boolValue.setter
|
||||||
|
def boolValue(self, value):
|
||||||
|
self._boolValue = value
|
||||||
|
|
||||||
|
@pyqtProperty(str)
|
||||||
|
def strValue(self):
|
||||||
|
return self._strValue
|
||||||
|
|
||||||
|
@strValue.setter
|
||||||
|
def strValue(self, value):
|
||||||
|
self._strValue = value
|
||||||
|
|
||||||
|
# @pyqtProperty(list)
|
||||||
|
# def listValue(self):
|
||||||
|
# return self._listValue
|
||||||
|
|
||||||
|
# @listValue.setter
|
||||||
|
# def listValue(self, value):
|
||||||
|
# self._listValue = value
|
||||||
|
|
||||||
|
# @pyqtProperty(dict)
|
||||||
|
# def mapValue(self):
|
||||||
|
# return self._mapValue
|
||||||
|
|
||||||
|
# @mapValue.setter
|
||||||
|
# def mapValue(self, value):
|
||||||
|
# self._mapValue = value
|
||||||
|
|
||||||
|
# ------- 下面是注册函数的方法 -------
|
||||||
|
# ------- 如果有返回值一定要注明 result=返回类型 -------
|
||||||
|
|
||||||
|
@pyqtSlot(int, int, result=int)
|
||||||
|
def testAdd(self, a, b):
|
||||||
|
return a + b
|
||||||
0
QWebChannel/Lib/__init__.py
Normal file
0
QWebChannel/Lib/__init__.py
Normal file
0
QWebChannel/README.en.md
Normal file
0
QWebChannel/README.en.md
Normal file
12
QWebChannel/README.md
Normal file
12
QWebChannel/README.md
Normal file
|
|
@ -0,0 +1,12 @@
|
||||||
|
# QWebChannel
|
||||||
|
|
||||||
|
- 目录
|
||||||
|
- [和Js互相调用](#1和Js互相调用)
|
||||||
|
|
||||||
|
## 1、和Js互相调用
|
||||||
|
[运行 CallEachWithJs.py](CallEachWithJs.py)
|
||||||
|
|
||||||
|
通过`qwebchannel.js`和`QWebChannel.registerObject`通过中间件`WebSocket`进行对象和Javascript的交互（类似于json rpc）
|
||||||
|
该方法类似与`QWebEngineView`中的例子，同时该demo也适用与nodejs。
|
||||||
|
|
||||||
|
|
||||||
BIN
QWebChannel/ScreenShot/CallEachWithJs.gif
Normal file
BIN
QWebChannel/ScreenShot/CallEachWithJs.gif
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 874 KiB |
|
|
@ -146,6 +146,8 @@ https://pyqt.site 论坛是专门针对PyQt5学习和提升开设的网站，分
|
||||||
- [拦截请求内容](QWebEngineView/BlockRequestData.py)
|
- [拦截请求内容](QWebEngineView/BlockRequestData.py)
|
||||||
- [浏览器下载文件](Test/partner_625781186/6.QWebEngineView下载文件)
|
- [浏览器下载文件](Test/partner_625781186/6.QWebEngineView下载文件)
|
||||||
- [打印网页](Test/partner_625781186/17_打印预览qwebengineview)
|
- [打印网页](Test/partner_625781186/17_打印预览qwebengineview)
|
||||||
|
- [QWebChannel](QWebChannel)
|
||||||
|
- [和Js互相调用](QWebChannel/CallEachWithJs.py)
|
||||||
|
|
||||||
- [QThread](QThread)
|
- [QThread](QThread)
|
||||||
- [继承QThread](QThread/InheritQThread.py)
|
- [继承QThread](QThread/InheritQThread.py)
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue