fullscreenwindow.cpp Example File

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  #include "fullscreenwindow.h"

  #include "fullscreennotification.h"

  #include <QAction>
  #include <QLabel>
  #include <QWebEngineView>

  FullScreenWindow::FullScreenWindow(QWebEngineView *oldView, QWidget *parent)
      : QWidget(parent)
      , m_view(new QWebEngineView(this))
      , m_notification(new FullScreenNotification(this))
      , m_oldView(oldView)
      , m_oldGeometry(oldView->window()->geometry())
  {
      m_view->stackUnder(m_notification);

      auto exitAction = new QAction(this);
      exitAction->setShortcut(Qt::Key_Escape);
      connect(exitAction, &QAction::triggered, [this]() {
          m_view->triggerPageAction(QWebEnginePage::ExitFullScreen);
      });
      addAction(exitAction);

      m_view->setPage(m_oldView->page());
      setGeometry(m_oldGeometry);
      showFullScreen();
      m_oldView->window()->hide();
  }

  FullScreenWindow::~FullScreenWindow()
  {
      m_oldView->setPage(m_view->page());
      m_oldView->window()->setGeometry(m_oldGeometry);
      m_oldView->window()->show();
      hide();
  }

  void FullScreenWindow::resizeEvent(QResizeEvent *event)
  {
      QRect viewGeometry(QPoint(0, 0), size());
      m_view->setGeometry(viewGeometry);

      QRect notificationGeometry(QPoint(0, 0), m_notification->sizeHint());
      notificationGeometry.moveCenter(viewGeometry.center());
      m_notification->setGeometry(notificationGeometry);

      QWidget::resizeEvent(event);
  }