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()
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)
self.rotateAction.toggled.connect(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)