152 lines
5.6 KiB
Python
152 lines
5.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2019年4月27日
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@author: Irony
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@site: https://pyqt5.com https://github.com/892768447
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@email: 892768447@qq.com
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@file: QWebEngineView.JsSignals
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@description:
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"""
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import os
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from time import time
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from PyQt5.QtCore import QUrl, pyqtSlot, pyqtSignal
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from PyQt5.QtWebChannel import QWebChannel
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from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEngineSettings
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from PyQt5.QtWidgets import QMessageBox, QWidget, QVBoxLayout, QPushButton
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__Author__ = 'Irony'
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__Copyright__ = 'Copyright (c) 2019'
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class WebEngineView(QWebEngineView):
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customSignal = pyqtSignal(str)
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def __init__(self, *args, **kwargs):
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super(WebEngineView, self).__init__(*args, **kwargs)
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self.initSettings()
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self.channel = QWebChannel(self)
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# 把自身对象传递进去
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self.channel.registerObject('Bridge', self)
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# 设置交互接口
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self.page().setWebChannel(self.channel)
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# START #####以下代码可能是在5.6 QWebEngineView刚出来时的bug,必须在每次加载页面的时候手动注入
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# self.page().loadStarted.connect(self.onLoadStart)
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# self._script = open('Data/qwebchannel.js', 'rb').read().decode()
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# def onLoadStart(self):
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# self.page().runJavaScript(self._script)
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# END ###########################
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# 注意pyqtSlot用于把该函数暴露给js可以调用
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@pyqtSlot(str)
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def callFromJs(self, text):
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QMessageBox.information(self, "提示", "来自js调用：{}".format(text))
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def sendCustomSignal(self):
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# 发送自定义信号
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self.customSignal.emit('当前时间: ' + str(time()))
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@pyqtSlot(str)
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@pyqtSlot(QUrl)
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def load(self, url):
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'''
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eg: load("https://pyqt5.com")
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:param url: 网址
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'''
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return super(WebEngineView, self).load(QUrl(url))
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def initSettings(self):
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'''
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eg: 初始化设置
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'''
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# 获取浏览器默认设置
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settings = QWebEngineSettings.globalSettings()
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# 设置默认编码utf8
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settings.setDefaultTextEncoding("utf-8")
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# 自动加载图片,默认开启
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# settings.setAttribute(QWebEngineSettings.AutoLoadImages,True)
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# 自动加载图标,默认开启
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# settings.setAttribute(QWebEngineSettings.AutoLoadIconsForPage,True)
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# 开启js,默认开启
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# settings.setAttribute(QWebEngineSettings.JavascriptEnabled,True)
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# js可以访问剪贴板
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settings.setAttribute(
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QWebEngineSettings.JavascriptCanAccessClipboard, True)
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# js可以打开窗口,默认开启
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# settings.setAttribute(QWebEngineSettings.JavascriptCanOpenWindows,True)
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# 链接获取焦点时的状态,默认开启
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# settings.setAttribute(QWebEngineSettings.LinksIncludedInFocusChain,True)
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# 本地储存,默认开启
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# settings.setAttribute(QWebEngineSettings.LocalStorageEnabled,True)
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# 本地访问远程
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settings.setAttribute(
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QWebEngineSettings.LocalContentCanAccessRemoteUrls, True)
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# 本地加载,默认开启
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# settings.setAttribute(QWebEngineSettings.LocalContentCanAccessFileUrls,True)
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# 监控负载要求跨站点脚本,默认关闭
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# settings.setAttribute(QWebEngineSettings.XSSAuditingEnabled,False)
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# 空间导航特性,默认关闭
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# settings.setAttribute(QWebEngineSettings.SpatialNavigationEnabled,False)
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# 支持平超链接属性,默认关闭
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# settings.setAttribute(QWebEngineSettings.HyperlinkAuditingEnabled,False)
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# 使用滚动动画,默认关闭
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settings.setAttribute(QWebEngineSettings.ScrollAnimatorEnabled, True)
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# 支持错误页面,默认启用
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# settings.setAttribute(QWebEngineSettings.ErrorPageEnabled, True)
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# 支持插件,默认关闭
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settings.setAttribute(QWebEngineSettings.PluginsEnabled, True)
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# 支持全屏应用程序,默认关闭
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settings.setAttribute(
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QWebEngineSettings.FullScreenSupportEnabled, True)
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# 支持屏幕截屏,默认关闭
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settings.setAttribute(QWebEngineSettings.ScreenCaptureEnabled, True)
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# 支持html5 WebGl,默认开启
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settings.setAttribute(QWebEngineSettings.WebGLEnabled, True)
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# 支持2d绘制,默认开启
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settings.setAttribute(
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QWebEngineSettings.Accelerated2dCanvasEnabled, True)
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# 支持图标触摸,默认关闭
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settings.setAttribute(QWebEngineSettings.TouchIconsEnabled, True)
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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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layout = QVBoxLayout(self)
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self.webview = WebEngineView(self)
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layout.addWidget(self.webview)
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layout.addWidget(QPushButton(
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'发送自定义信号', self, clicked=self.webview.sendCustomSignal))
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self.webview.windowTitleChanged.connect(self.setWindowTitle)
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self.webview.load(QUrl.fromLocalFile(
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os.path.abspath('Data/JsSignals.html')))
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if __name__ == "__main__":
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from PyQt5.QtWidgets import QApplication
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import sys
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# 开启F12 控制台功能，需要单独通过浏览器打开这个页面
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# 这里可以做个保护, 发布软件,启动时把这个环境变量删掉。防止他人通过环境变量开启
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os.environ['QTWEBENGINE_REMOTE_DEBUGGING'] = '9966'
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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w.move(100, 100)
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# 打开调试页面
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dw = QWebEngineView()
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dw.setWindowTitle('开发人员工具')
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dw.load(QUrl('http://127.0.0.1:9966'))
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dw.move(600, 100)
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dw.show()
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sys.exit(app.exec_())
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