#include <QtGui>
#include <QtWebKit>
#include "mainwindow.h"
MainWindow::MainWindow(const QUrl& url)
{
progress = 0;
QFile file;
file.setFileName(":/jquery.min.js");
file.open(QIODevice::ReadOnly);
jQuery = file.readAll();
file.close();
QNetworkProxyFactory::setUseSystemConfiguration(true);
view = new QWebView(this);
view->load(url);
connect(view, SIGNAL(loadFinished(bool)), SLOT(adjustLocation()));
connect(view, SIGNAL(titleChanged(QString)), SLOT(adjustTitle()));
connect(view, SIGNAL(loadProgress(int)), SLOT(setProgress(int)));
connect(view, SIGNAL(loadFinished(bool)), SLOT(finishLoading(bool)));
locationEdit = new QLineEdit(this);
locationEdit->setSizePolicy(QSizePolicy::Expanding, locationEdit->sizePolicy().verticalPolicy());
connect(locationEdit, SIGNAL(returnPressed()), SLOT(changeLocation()));
QToolBar *toolBar = addToolBar(tr("Navigation"));
toolBar->addAction(view->pageAction(QWebPage::Back));
toolBar->addAction(view->pageAction(QWebPage::Forward));
toolBar->addAction(view->pageAction(QWebPage::Reload));
toolBar->addAction(view->pageAction(QWebPage::Stop));
toolBar->addWidget(locationEdit);
QMenu *viewMenu = menuBar()->addMenu(tr("&View"));
QAction* viewSourceAction = new QAction("Page Source", this);
connect(viewSourceAction, SIGNAL(triggered()), SLOT(viewSource()));
viewMenu->addAction(viewSourceAction);
QMenu *effectMenu = menuBar()->addMenu(tr("&Effect"));
effectMenu->addAction("Highlight all links", this, SLOT(highlightAllLinks()));
rotateAction = new QAction(this);
rotateAction->setIcon(style()->standardIcon(QStyle::SP_FileDialogDetailedView));
rotateAction->setCheckable(true);
rotateAction->setText(tr("Turn images upside down"));
connect(rotateAction, SIGNAL(toggled(bool)), this, SLOT(rotateImages(bool)));
effectMenu->addAction(rotateAction);
QMenu *toolsMenu = menuBar()->addMenu(tr("&Tools"));
toolsMenu->addAction(tr("Remove GIF images"), this, SLOT(removeGifImages()));
toolsMenu->addAction(tr("Remove all inline frames"), this, SLOT(removeInlineFrames()));
toolsMenu->addAction(tr("Remove all object elements"), this, SLOT(removeObjectElements()));
toolsMenu->addAction(tr("Remove all embedded elements"), this, SLOT(removeEmbeddedElements()));
setCentralWidget(view);
setUnifiedTitleAndToolBarOnMac(true);
}
void MainWindow::viewSource()
{
QNetworkAccessManager* accessManager = view->page()->networkAccessManager();
QNetworkRequest request(view->url());
QNetworkReply* reply = accessManager->get(request);
connect(reply, SIGNAL(finished()), this, SLOT(slotSourceDownloaded()));
}
void MainWindow::slotSourceDownloaded()
{
QNetworkReply* reply = qobject_cast<QNetworkReply*>(const_cast<QObject*>(sender()));
QTextEdit* textEdit = new QTextEdit(NULL);
textEdit->setAttribute(Qt::WA_DeleteOnClose);
textEdit->show();
textEdit->setPlainText(reply->readAll());
reply->deleteLater();
}
void MainWindow::adjustLocation()
{
locationEdit->setText(view->url().toString());
}
void MainWindow::changeLocation()
{
QUrl url = QUrl(locationEdit->text());
view->load(url);
view->setFocus();
}
void MainWindow::adjustTitle()
{
if (progress <= 0 || progress >= 100)
setWindowTitle(view->title());
else
setWindowTitle(QString("%1 (%2%)").arg(view->title()).arg(progress));
}
void MainWindow::setProgress(int p)
{
progress = p;
adjustTitle();
}
void MainWindow::finishLoading(bool)
{
progress = 100;
adjustTitle();
view->page()->mainFrame()->evaluateJavaScript(jQuery);
rotateImages(rotateAction->isChecked());
}
void MainWindow::highlightAllLinks()
{
QString code = "$('a').each( function () { $(this).css('background-color', 'yellow') } )";
view->page()->mainFrame()->evaluateJavaScript(code);
}
void MainWindow::rotateImages(bool invert)
{
QString code;
if (invert)
code = "$('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'); $(this).css('-webkit-transform', 'rotate(0deg)') } )";
view->page()->mainFrame()->evaluateJavaScript(code);
}
void MainWindow::removeGifImages()
{
QString code = "$('[src*=gif]').remove()";
view->page()->mainFrame()->evaluateJavaScript(code);
}
void MainWindow::removeInlineFrames()
{
QString code = "$('iframe').remove()";
view->page()->mainFrame()->evaluateJavaScript(code);
}
void MainWindow::removeObjectElements()
{
QString code = "$('object').remove()";
view->page()->mainFrame()->evaluateJavaScript(code);
}
void MainWindow::removeEmbeddedElements()
{
QString code = "$('embed').remove()";
view->page()->mainFrame()->evaluateJavaScript(code);
}