#!/usr/bin/env python ############################################################################# ## ## Copyright (C) 2013 Riverbank Computing Limited ## Copyright (C) 2010 Hans-Peter Jansen . ## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ## All rights reserved. ## ## This file is part of the examples of PyQt. ## ## $QT_BEGIN_LICENSE:BSD$ ## You may use this file under the terms of the BSD license as follows: ## ## "Redistribution and use in source and binary forms, with or without ## modification, are permitted provided that the following conditions are ## met: ## * Redistributions of source code must retain the above copyright ## notice, this list of conditions and the following disclaimer. ## * Redistributions in binary form must reproduce the above copyright ## notice, this list of conditions and the following disclaimer in ## the documentation and/or other materials provided with the ## distribution. ## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor ## the names of its contributors may be used to endorse or promote ## products derived from this software without specific prior written ## permission. ## ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ## $QT_END_LICENSE$ ## ########################################################################### from PyQt5.QtCore import QFile, QIODevice, Qt, QTextStream, QUrl from PyQt5.QtWidgets import (QAction, QApplication, QLineEdit, QMainWindow, QSizePolicy, QStyle, QTextEdit) from PyQt5.QtNetwork import QNetworkProxyFactory, QNetworkRequest from PyQt5.QtWebKitWidgets import QWebPage, QWebView import jquery_rc class MainWindow(QMainWindow): def __init__(self, url): super(MainWindow, self).__init__() self.progress = 0 fd = QFile(":/jquery.min.js") if fd.open(QIODevice.ReadOnly | QFile.Text): self.jQuery = QTextStream(fd).readAll() fd.close() else: self.jQuery = '' QNetworkProxyFactory.setUseSystemConfiguration(True) self.view = QWebView(self) self.view.load(url) self.view.loadFinished.connect(self.adjustLocation) self.view.titleChanged.connect(self.adjustTitle) self.view.loadProgress.connect(self.setProgress) self.view.loadFinished.connect(self.finishLoading) self.locationEdit = QLineEdit(self) self.locationEdit.setSizePolicy(QSizePolicy.Expanding, self.locationEdit.sizePolicy().verticalPolicy()) self.locationEdit.returnPressed.connect(self.changeLocation) toolBar = self.addToolBar("Navigation") toolBar.addAction(self.view.pageAction(QWebPage.Back)) toolBar.addAction(self.view.pageAction(QWebPage.Forward)) toolBar.addAction(self.view.pageAction(QWebPage.Reload)) toolBar.addAction(self.view.pageAction(QWebPage.Stop)) toolBar.addWidget(self.locationEdit) viewMenu = self.menuBar().addMenu("&View") viewSourceAction = QAction("Page Source", self) viewSourceAction.triggered.connect(self.viewSource) viewMenu.addAction(viewSourceAction) effectMenu = self.menuBar().addMenu("&Effect") effectMenu.addAction("Highlight all links", self.highlightAllLinks) self.rotateAction = QAction( self.style().standardIcon(QStyle.SP_FileDialogDetailedView), "Turn images upside down", self, checkable=True, toggled=self.rotateImages) effectMenu.addAction(self.rotateAction) toolsMenu = self.menuBar().addMenu("&Tools") toolsMenu.addAction("Remove GIF images", self.removeGifImages) toolsMenu.addAction("Remove all inline frames", self.removeInlineFrames) toolsMenu.addAction("Remove all object elements", self.removeObjectElements) toolsMenu.addAction("Remove all embedded elements", self.removeEmbeddedElements) self.setCentralWidget(self.view) def viewSource(self): accessManager = self.view.page().networkAccessManager() request = QNetworkRequest(self.view.url()) reply = accessManager.get(request) reply.finished.connect(self.slotSourceDownloaded) def slotSourceDownloaded(self): reply = self.sender() self.textEdit = QTextEdit() self.textEdit.setAttribute(Qt.WA_DeleteOnClose) self.textEdit.show() self.textEdit.setPlainText(QTextStream(reply).readAll()) self.textEdit.resize(600, 400) reply.deleteLater() def adjustLocation(self): self.locationEdit.setText(self.view.url().toString()) def changeLocation(self): url = QUrl.fromUserInput(self.locationEdit.text()) self.view.load(url) self.view.setFocus() def adjustTitle(self): if 0 < self.progress < 100: self.setWindowTitle("%s (%s%%)" % (self.view.title(), self.progress)) else: self.setWindowTitle(self.view.title()) def setProgress(self, p): self.progress = p self.adjustTitle() def finishLoading(self): self.progress = 100 self.adjustTitle() self.view.page().mainFrame().evaluateJavaScript(self.jQuery) self.rotateImages(self.rotateAction.isChecked()) def highlightAllLinks(self): code = """$('a').each( function () { $(this).css('background-color', 'yellow') } )""" self.view.page().mainFrame().evaluateJavaScript(code) def rotateImages(self, invert): if invert: code = """ $('img').each( function () { $(this).css('-webkit-transition', '-webkit-transform 2s'); $(this).css('-webkit-transform', 'rotate(180deg)') } )""" else: code = """ $('img').each( function () { $(this).css('-webkit-transition', '-webkit-transform 2s'); $(this).css('-webkit-transform', 'rotate(0deg)') } )""" self.view.page().mainFrame().evaluateJavaScript(code) def removeGifImages(self): code = "$('[src*=gif]').remove()" self.view.page().mainFrame().evaluateJavaScript(code) def removeInlineFrames(self): code = "$('iframe').remove()" self.view.page().mainFrame().evaluateJavaScript(code) def removeObjectElements(self): code = "$('object').remove()" self.view.page().mainFrame().evaluateJavaScript(code) def removeEmbeddedElements(self): code = "$('embed').remove()" self.view.page().mainFrame().evaluateJavaScript(code) if __name__ == '__main__': import sys app = QApplication(sys.argv) if len(sys.argv) > 1: url = QUrl(sys.argv[1]) else: url = QUrl('http://www.google.com/ncr') browser = MainWindow(url) browser.show() sys.exit(app.exec_())