88 lines
2.5 KiB
Python
88 lines
2.5 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://pyqt.site , https://github.com/PyQt5
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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.QtWebKit import QWebSettings
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from PyQt5.QtWebKitWidgets import QWebView
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from PyQt5.QtWidgets import QMessageBox, QWidget, QVBoxLayout, QPushButton
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class WebView(QWebView):
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customSignal = pyqtSignal(str)
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def __init__(self, *args, **kwargs):
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super(WebView, self).__init__(*args, **kwargs)
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self.initSettings()
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# 暴露接口对象
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self.page().mainFrame().javaScriptWindowObjectCleared.connect(self._exposeInterface)
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def _exposeInterface(self):
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"""向Js暴露调用本地方法接口
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"""
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self.page().mainFrame().addToJavaScriptWindowObject('Bridge', self)
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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://pyqt.site")
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:param url: 网址
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'''
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return super(WebView, 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 = self.settings()
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# 开启开发人员工具
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settings.setAttribute(QWebSettings.DeveloperExtrasEnabled, True)
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# 设置默认编码
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settings.setDefaultTextEncoding('UTF-8')
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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 = WebView(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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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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sys.exit(app.exec_())
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