150 lines
4.9 KiB
Python
150 lines
4.9 KiB
Python
# v1.2
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# created
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# by Roger
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# in 2017.1.3
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from PyQt5.QtCore import *
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from PyQt5.QtWidgets import *
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from PyQt5.QtGui import *
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from PyQt5.QtWebEngineWidgets import QWebEngineView
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import configparser
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import sys
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class MainWindow(QMainWindow):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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# 设置窗口标题
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self.setWindowTitle('My Browser')
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# 设置窗口图标
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self.setWindowIcon(QIcon('icons/penguin.png'))
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# 设置窗口大小900*600
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self.resize(750, 400)
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self.show()
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self.frame=1
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# 设置浏览器
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self.browser = MyEngineView()
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# config = configparser.ConfigParser()
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# config.readfp(open('url.ini'))
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# url= config.get("URL","url")
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url="http://www.onlinedown.net/soft/56160.htm"
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# 指定打开界面的 URL
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self.browser.setUrl(QUrl(url))
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# 添加浏览器到窗口中
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self.setCentralWidget(self.browser)
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self.tray = QSystemTrayIcon() #创建系统托盘对象
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self.icon = QIcon('icons/back.png') #创建图标
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self.tray.setIcon(self.icon) #设置系统托盘图标
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self.tray.show()
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#使用QToolBar创建导航栏，并使用QAction创建按钮
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# 添加导航栏
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navigation_bar = QToolBar('Navigation')
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# 设定图标的大小
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navigation_bar.setIconSize(QSize(16, 16))
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#添加导航栏到窗口中
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self.addToolBar(navigation_bar)
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#QAction类提供了抽象的用户界面action，这些action可以被放置在窗口部件中
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# 添加前进、后退、停止加载和刷新的按钮
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back_button = QAction(QIcon('icons/back.png'), 'Back', self)
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next_button = QAction(QIcon('icons/next.png'), 'Forward', self)
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stop_button = QAction(QIcon('icons/cross.png'), 'stop', self)
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reload_button = QAction(QIcon('icons/renew.png'), 'reload', self)
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back_button.triggered.connect(self.browser.back)
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next_button.triggered.connect(self.browser.forward)
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stop_button.triggered.connect(self.browser.stop)
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reload_button.triggered.connect(self.browser.reload)
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# 将按钮添加到导航栏上
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navigation_bar.addAction(back_button)
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navigation_bar.addAction(next_button)
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navigation_bar.addAction(stop_button)
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navigation_bar.addAction(reload_button)
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#添加URL地址栏
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self.urlbar = QLineEdit()
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self.urlbar.setText(url)
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# 让地址栏能响应回车按键信号
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self.urlbar.returnPressed.connect(self.navigate_to_url)
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navigation_bar.addSeparator()
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navigation_bar.addWidget(self.urlbar)
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#让浏览器相应url地址的变化
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self.browser.urlChanged.connect(self.renew_urlbar)
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def navigate_to_url(self):
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q = QUrl(self.urlbar.text())
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if q.scheme() == '':
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q.setScheme('http')
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self.browser.setUrl(q)
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def renew_urlbar(self, q):
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# 将当前网页的链接更新到地址栏
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self.urlbar.setText(q.toString())
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self.urlbar.setCursorPosition(0)
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class MyEngineView(QWebEngineView):
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'''
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浏览器类。
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'''
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def __init__(self, parent=None, ):
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super(MyEngineView, self).__init__(parent)
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self.parent = parent
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#有下载信号发起
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self.page().profile().downloadRequested.connect(self.on_downloadRequested)
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def createWindow(self, type):
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'''
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实现点击跳转链接。
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'''
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return self
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#以下函数里的 ：后为注释，无实际作用
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#下载信号连接到的槽
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def on_downloadRequested(self, download : "QWebEngineDownloadItem" ):
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# download是QWebEngineDownloadItem对象；
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download.downloadProgress.connect(self._downloadProgress)
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download.finished.connect(self._finished)
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#下载文件的保存路径及文件名
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old_path = download.path()
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suffix = QFileInfo(old_path).suffix()
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#下载文件类型
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filttype = download.mimeType()
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#后缀切割
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unkonw_suffix = filttype.split(r'/')[-1]
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path, _ =QFileDialog.getSaveFileName(self, "Save File", old_path, "*."+unkonw_suffix + ";;" + "*."+suffix )
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print(old_path, suffix)
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if path!="":
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download.setPath(path)
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download.accept()
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def _downloadProgress(self , bytesReceived:"qint64", bytesTotal:"qint64"):
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# bytesReceived 当前下载值 ； bytesTotal 文件总大小值
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self.bytesReceived = bytesReceived
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self.bytesTotal = bytesTotal
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print(bytesReceived , bytesTotal )
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def _finished(self):
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print("下载完成")
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if __name__ == "__main__":
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# 创建应用
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app = QApplication(sys.argv)
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# 创建主窗口
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window = MainWindow()
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# 显示窗口
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window.show()
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# 运行应用，并监听事件
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app.exec_()
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