| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the examples of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** Commercial License Usage |
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| ****************************************************************************/ |
| |
| #include <QtWidgets> |
| #include <QtWebEngineWidgets> |
| #include "mainwindow.h" |
| |
| MainWindow::MainWindow(const QUrl& url) |
| { |
| setAttribute(Qt::WA_DeleteOnClose, true); |
| progress = 0; |
| |
| QFile file; |
| file.setFileName(":/jquery.min.js"); |
| file.open(QIODevice::ReadOnly); |
| jQuery = file.readAll(); |
| jQuery.append("\nvar qt = { 'jQuery': jQuery.noConflict(true) };"); |
| file.close(); |
| |
| view = new QWebEngineView(this); |
| view->load(url); |
| connect(view, &QWebEngineView::loadFinished, this, &MainWindow::adjustLocation); |
| connect(view, &QWebEngineView::titleChanged, this, &MainWindow::adjustTitle); |
| connect(view, &QWebEngineView::loadProgress, this, &MainWindow::setProgress); |
| connect(view, &QWebEngineView::loadFinished, this, &MainWindow::finishLoading); |
| |
| locationEdit = new QLineEdit(this); |
| locationEdit->setSizePolicy(QSizePolicy::Expanding, locationEdit->sizePolicy().verticalPolicy()); |
| connect(locationEdit, &QLineEdit::returnPressed, this, &MainWindow::changeLocation); |
| |
| QToolBar *toolBar = addToolBar(tr("Navigation")); |
| toolBar->addAction(view->pageAction(QWebEnginePage::Back)); |
| toolBar->addAction(view->pageAction(QWebEnginePage::Forward)); |
| toolBar->addAction(view->pageAction(QWebEnginePage::Reload)); |
| toolBar->addAction(view->pageAction(QWebEnginePage::Stop)); |
| toolBar->addWidget(locationEdit); |
| |
| QMenu *viewMenu = menuBar()->addMenu(tr("&View")); |
| QAction *viewSourceAction = new QAction(tr("Page Source"), this); |
| connect(viewSourceAction, &QAction::triggered, this, &MainWindow::viewSource); |
| viewMenu->addAction(viewSourceAction); |
| |
| QMenu *effectMenu = menuBar()->addMenu(tr("&Effect")); |
| effectMenu->addAction(tr("Highlight all links"), this, &MainWindow::highlightAllLinks); |
| |
| rotateAction = new QAction(this); |
| rotateAction->setIcon(style()->standardIcon(QStyle::SP_FileDialogDetailedView)); |
| rotateAction->setCheckable(true); |
| rotateAction->setText(tr("Turn images upside down")); |
| connect(rotateAction, &QAction::toggled, this, &MainWindow::rotateImages); |
| effectMenu->addAction(rotateAction); |
| |
| QMenu *toolsMenu = menuBar()->addMenu(tr("&Tools")); |
| toolsMenu->addAction(tr("Remove GIF images"), this, &MainWindow::removeGifImages); |
| toolsMenu->addAction(tr("Remove all inline frames"), this, &MainWindow::removeInlineFrames); |
| toolsMenu->addAction(tr("Remove all object elements"), this, &MainWindow::removeObjectElements); |
| toolsMenu->addAction(tr("Remove all embedded elements"), this, &MainWindow::removeEmbeddedElements); |
| |
| setCentralWidget(view); |
| } |
| |
| void MainWindow::viewSource() |
| { |
| QTextEdit *textEdit = new QTextEdit(nullptr); |
| textEdit->setAttribute(Qt::WA_DeleteOnClose); |
| textEdit->adjustSize(); |
| textEdit->move(this->geometry().center() - textEdit->rect().center()); |
| textEdit->show(); |
| |
| view->page()->toHtml([textEdit](const QString &html){ |
| textEdit->setPlainText(html); |
| }); |
| } |
| |
| void MainWindow::adjustLocation() |
| { |
| locationEdit->setText(view->url().toString()); |
| } |
| |
| void MainWindow::changeLocation() |
| { |
| QUrl url = QUrl::fromUserInput(locationEdit->text()); |
| view->load(url); |
| view->setFocus(); |
| } |
| |
| void MainWindow::adjustTitle() |
| { |
| if (progress <= 0 || progress >= 100) |
| setWindowTitle(view->title()); |
| else |
| setWindowTitle(QStringLiteral("%1 (%2%)").arg(view->title()).arg(progress)); |
| } |
| |
| void MainWindow::setProgress(int p) |
| { |
| progress = p; |
| adjustTitle(); |
| } |
| |
| void MainWindow::finishLoading(bool) |
| { |
| progress = 100; |
| adjustTitle(); |
| view->page()->runJavaScript(jQuery); |
| |
| rotateImages(rotateAction->isChecked()); |
| } |
| |
| void MainWindow::highlightAllLinks() |
| { |
| QString code = QStringLiteral("qt.jQuery('a').each( function () { qt.jQuery(this).css('background-color', 'yellow') } )"); |
| view->page()->runJavaScript(code); |
| } |
| |
| void MainWindow::rotateImages(bool invert) |
| { |
| QString code; |
| |
| if (invert) |
| code = QStringLiteral("qt.jQuery('img').each( function () { qt.jQuery(this).css('transition', 'transform 2s'); qt.jQuery(this).css('transform', 'rotate(180deg)') } )"); |
| else |
| code = QStringLiteral("qt.jQuery('img').each( function () { qt.jQuery(this).css('transition', 'transform 2s'); qt.jQuery(this).css('transform', 'rotate(0deg)') } )"); |
| view->page()->runJavaScript(code); |
| } |
| |
| void MainWindow::removeGifImages() |
| { |
| QString code = QStringLiteral("qt.jQuery('[src*=gif]').remove()"); |
| view->page()->runJavaScript(code); |
| } |
| |
| void MainWindow::removeInlineFrames() |
| { |
| QString code = QStringLiteral("qt.jQuery('iframe').remove()"); |
| view->page()->runJavaScript(code); |
| } |
| |
| void MainWindow::removeObjectElements() |
| { |
| QString code = QStringLiteral("qt.jQuery('object').remove()"); |
| view->page()->runJavaScript(code); |
| } |
| |
| void MainWindow::removeEmbeddedElements() |
| { |
| QString code = QStringLiteral("qt.jQuery('embed').remove()"); |
| view->page()->runJavaScript(code); |
| } |