QWebengine玩转HTML - QTCN开发网

QString readFiledata(const QString& filepath)
{
    QFile file;
    file.setFileName(filepath);
    file.open(QIODevice::ReadOnly);
    QString data = file.readAll();
    file.close();
    return data;
}

void WebView::initControl()
{
    qputenv("QTWEBENGINE_REMOTE_DEBUGGING", "9223");
    m_jQuery = readFiledata(":/WebenginePlay/Resources/jquery.min.js");
    m_jQuery.append("\nvar qt = { 'jQuery': jQuery.noConflict(true) };");

    connect(this, SIGNAL(titleChanged(QString)), SLOT(adjustTitle()));
    connect(this, SIGNAL(loadProgress(int)), SLOT(setProgress(int)));
    connect(this, SIGNAL(loadFinished(bool)), SLOT(finishLoading(bool)));
}

void WebView::loadUrl(QUrl url)
{
    this->load(url);
}

void WebView::adjustTitle()
{
    if (m_progress <= 0 || m_progress >= 100)
        parentWidget()->setWindowTitle(this->title());
    else
        parentWidget()->setWindowTitle(QString("%1 (%2%)").arg(this->title()).arg(m_progress));
}

void WebView::setProgress(int p)
{
    m_progress = p;
    adjustTitle();
}

void WebView::finishLoading(bool)
{
    m_progress = 100;
    adjustTitle();
    QString code = "qt.jQuery('<link>').attr({ rel: \"stylesheet\",type: \"text/css\",href: \"qrc:/WebenginePlay/Resources/rotate.css\"}).appendTo(\"head\"); undefined";
    m_jQuery.append("\n");
    m_jQuery.append(code);
    page()->runJavaScript(m_jQuery);
}

void WebView::highlightAllLinks()
{
    QString code = "qt.jQuery('a').each( function () { qt.jQuery(this).css('background-color', 'yellow') } ); undefined";
    this->page()->runJavaScript(code);
}

void WebView::rotateImages()
{
    QString code = "qt.jQuery('img').addClass(\"header\");";
    this->page()->runJavaScript(code);
}

void WebView::removeGifImages()
{
    QString code = "qt.jQuery('[src*=gif]').remove()";
    this->page()->runJavaScript(code);
}

void WebView::updateBackground()
{
    QString code = "qt.jQuery('body').each( function () { qt.jQuery(this).css('background', 'rgba(200,200,200,100)') } ); undefined";
    this->page()->runJavaScript(code);
}