fullscreennotification.cpp Example File

webenginewidgets/demobrowser/fullscreennotification.cpp
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#include "fullscreennotification.h" #include <QApplication> #include <QDesktopWidget> #include <QGridLayout> #include <QLabel> #include <QPropertyAnimation> #include <QTimer> FullScreenNotification::FullScreenNotification(QWidget *parent) : QWidget(parent) , width(400) , height(80) , x((parent->geometry().width() - width) / 2) , y(80) { setVisible(false); setWindowFlags(Qt::ToolTip | Qt::WindowDoesNotAcceptFocus); QGridLayout *layout = new QGridLayout(this); m_label = new QLabel(tr("You are now in fullscreen mode. Press ESC to quit!"), this); layout->addWidget(m_label, 0, 0, 0, 0, Qt::AlignHCenter | Qt::AlignVCenter); setGeometry(x, y, width, height); setStyleSheet("background-color: white;\ color: black;"); m_animation = new QPropertyAnimation(this, "windowOpacity"); connect(m_animation, SIGNAL(finished()), this, SLOT(fadeOutFinished())); } FullScreenNotification::~FullScreenNotification() { } void FullScreenNotification::show() { setWindowOpacity(1.0); QTimer::singleShot(300, [&] { QWidget *parent = parentWidget(); x = (parent->geometry().width() - width) / 2; QPoint topLeft = parent->mapToGlobal(QPoint(x, y)); QWidget::move(topLeft.x(), topLeft.y()); QWidget::show(); QWidget::raise(); }); QTimer::singleShot(5000, this, SLOT(fadeOut())); } void FullScreenNotification::hide() { QWidget::hide(); m_animation->stop(); } void FullScreenNotification::fadeOut() { m_animation->setDuration(800); m_animation->setStartValue(1.0); m_animation->setEndValue(0.0); m_animation->setEasingCurve(QEasingCurve::OutQuad); m_animation->start(); } void FullScreenNotification::fadeOutFinished() { hide(); setWindowOpacity(1.0); }