PyQt/QWebChannel/CallEachWithJs.py

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2021-12-16 02:48:35 +08:00
#!/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: CallEachWithJs.py
@description: 与JS之间的互相调用
"""
import os
from PyQt5.QtCore import QUrl, pyqtSlot
from PyQt5.QtGui import QDesktopServices
from PyQt5.QtWidgets import (QApplication, QLineEdit, QPushButton, QVBoxLayout,
QWidget)
from Lib.WebChannelObject import WebChannelObject
class Window(QWidget):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.m_obj = WebChannelObject(self)
# 注册该窗口,可以访问该窗口的属性,槽函数,信号
# https://doc.qt.io/qt-5/qwidget.html#properties
# https://doc.qt.io/qt-5/qwidget.html#signals
# https://doc.qt.io/qt-5/qwidget.html#public-slots
self.m_obj.registerObject('qtwindow', self)
self.m_obj.start()
layout = QVBoxLayout(self)
self.editTitle = QLineEdit(self, placeholderText='输入标题')
layout.addWidget(self.editTitle)
layout.addWidget(QPushButton('修改标题', self, clicked=self.onChangeTitle))
QDesktopServices.openUrl(
QUrl.fromLocalFile(
os.path.join(os.path.dirname(sys.argv[0] or __file__),
'Data/CallEachWithJs.html')))
def onChangeTitle(self):
self.setWindowTitle(self.editTitle.text())
# ------- 把非槽函数通过pyqtSlot重新暴露 -------
@pyqtSlot(int, int)
def resize(self, width, height):
super().resize(width, height)
if __name__ == '__main__':
import cgitb
import sys
cgitb.enable(format='text')
app = QApplication(sys.argv)
w = Window()
w.show()
sys.exit(app.exec_())