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diff --git a/examples/webenginewidgets/demobrowser/fullscreennotification.cpp b/examples/webenginewidgets/demobrowser/fullscreennotification.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+}