fullscreennotification.cpp Example File

webenginewidgets/videoplayer/fullscreennotification.cpp
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#include "fullscreennotification.h" #include <QGraphicsOpacityEffect> #include <QPropertyAnimation> #include <QSequentialAnimationGroup> FullScreenNotification::FullScreenNotification(QWidget *parent) : QLabel(parent) , m_previouslyVisible(false) { setText(tr("You are now in full screen mode. Press ESC to quit!")); setStyleSheet( "font-size: 24px;" "color: white;" "background-color: black;" "border-color: white;" "border-width: 2px;" "border-style: solid;" "padding: 100px"); setAttribute(Qt::WA_TransparentForMouseEvents); auto effect = new QGraphicsOpacityEffect; effect->setOpacity(1); setGraphicsEffect(effect); auto animations = new QSequentialAnimationGroup(this); animations->addPause(3000); auto opacityAnimation = new QPropertyAnimation(effect, "opacity", animations); opacityAnimation->setDuration(2000); opacityAnimation->setStartValue(1.0); opacityAnimation->setEndValue(0.0); opacityAnimation->setEasingCurve(QEasingCurve::OutQuad); animations->addAnimation(opacityAnimation); connect(this, &FullScreenNotification::shown, [animations](){ animations->start(); }); connect(animations, &QAbstractAnimation::finished, [this](){ this->hide(); }); } void FullScreenNotification::showEvent(QShowEvent *event) { QLabel::showEvent(event); if (!m_previouslyVisible && isVisible()) emit shown(); m_previouslyVisible = isVisible(); }