import sys

import os

import datetime

from PyQt5.QtWidgets import *

from PyQt5.QtCore import *

from PyQt5.QtWebEngineWidgets import QWebEngineView,QWebEngineSettings

# 调试窗口配置

# 如果不想自己创建调试窗口，可以使用Chrome连接这个地址进行调试

DEBUG_PORT = '5588'

DEBUG_URL = 'http://127.0.0.1:%s' % DEBUG_PORT

os.environ['QTWEBENGINE_REMOTE_DEBUGGING'] = DEBUG_PORT

################################################

#######创建主窗口

################################################

class MainWindow(QMainWindow):

def __init__(self, *args, **kwargs):

super().__init__(*args, **kwargs)

self.setWindowTitle('My Browser')

#self.showMaximized()

self.setWindowFlags(Qt.FramelessWindowHint)

#####创建tabwidget

self.tabWidget = QTabWidget()

self.tabWidget.setTabShape(QTabWidget.Triangular)

self.tabWidget.setDocumentMode(True)

self.tabWidget.setMovable(True)

self.tabWidget.setTabsClosable(True)

self.tabWidget.tabCloseRequested.connect(self.close_Tab)

self.setCentralWidget(self.tabWidget)

####第一个tab

self.webview = WebEngineView(self) #self必须要有，是将主窗口作为参数，传给浏览器

self.webview.load(QUrl("https://www.baidu.com"))

self.create_tab(self.webview)

#网页调试窗口

self.inspector = QWebEngineView()

self.inspector.setWindowTitle('Web Inspector')

self.inspector.load(QUrl(DEBUG_URL))

self.webview.loadFinished.connect(self.handleHtmlLoaded)

# 加载完成后显示调试网页

def handleHtmlLoaded(self, ok):

if ok:

self.webview.page().setDevToolsPage(self.inspector.page())

self.inspector.show()

#创建tab

def create_tab(self,webview):

self.tab = QWidget()

self.tabWidget.addTab(self.tab, "新标签页")

self.tabWidget.setCurrentWidget(self.tab)

#####

self.Layout = QHBoxLayout(self.tab)

self.Layout.setContentsMargins(0, 0, 0, 0)

self.Layout.addWidget(webview)

#关闭tab

def close_Tab(self,index):

if self.tabWidget.count()>1:

self.tabWidget.removeTab(index)

else:

self.close() # 当只有1个tab时，关闭主窗口

################################################

#######创建浏览器

################################################

class WebEngineView(QWebEngineView):

def __init__(self,mainwindow,parent=None):

super(WebEngineView, self).__init__(parent)

self.mainwindow = mainwindow

##############

self.settings().setAttribute(QWebEngineSettings.PluginsEnabled, True) #支持视频播放

self.page().windowCloseRequested.connect(self.on_windowCloseRequested) #页面关闭请求

self.page().profile().downloadRequested.connect(self.on_downloadRequested) #页面下载请求

# 支持页面关闭请求

def on_windowCloseRequested(self):

the_index = self.mainwindow.tabWidget.currentIndex()

self.mainwindow.tabWidget.removeTab(the_index)

# 支持页面下载按钮

def on_downloadRequested(self,downloadItem):

if downloadItem.isFinished()==False and downloadItem.state()==0:

###生成文件存储地址

the_filename = downloadItem.url().fileName()

if len(the_filename) == 0 or "." not in the_filename:

cur_time = datetime.datetime.now().strftime('%Y%m%d%H%M%S')

the_filename = "下载文件" + cur_time + ".xls"

the_sourceFile = os.path.join(os.getcwd(), the_filename)

###下载文件

# downloadItem.setSavePageFormat(QWebEngineDownloadItem.CompleteHtmlSaveFormat)

downloadItem.setPath(the_sourceFile)

downloadItem.accept()

downloadItem.finished.connect(self.on_downloadfinished)

# 下载结束触发函数

def on_downloadfinished(self):

js_string = '''

alert("下载成功，请到软件同目录下，查找下载文件！");

'''

self.page().runJavaScript(js_string)

# 重写createwindow()

def createWindow(self, QWebEnginePage_WebWindowType):

new_webview = WebEngineView(self.mainwindow)

self.mainwindow.create_tab(new_webview)

return new_webview

################################################

#######程序入门

################################################

if __name__ == "__main__":

app = QApplication(sys.argv)

the_mainwindow = MainWindow()

the_mainwindow.show()

sys.exit(app.exec())