Fullscreen notification popup for Widgets demobrowser

Change-Id: I3afc0399e4156cd17917103face68ca1945409f9
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

5 files changed, 208 insertions, 3 deletions

diff --git a/examples/webenginewidgets/demobrowser/demobrowser.pro b/examples/webenginewidgets/demobrowser/demobrowser.pro
index 14347de71..113eeb40e 100644
--- a/examples/webenginewidgets/demobrowser/demobrowser.pro
+++ b/examples/webenginewidgets/demobrowser/demobrowser.pro
@@ -28,6 +28,7 @@ HEADERS += \
     edittableview.h \
     edittreeview.h \
     featurepermissionbar.h\
+    fullscreennotification.h \
     history.h \
     modelmenu.h \
     searchlineedit.h \
@@ -49,6 +50,7 @@ SOURCES += \
     edittableview.cpp \
     edittreeview.cpp \
     featurepermissionbar.cpp\
+    fullscreennotification.cpp \
     history.cpp \
     modelmenu.cpp \
     searchlineedit.cpp \
diff --git a/examples/webenginewidgets/demobrowser/fullscreennotification.cpp b/examples/webenginewidgets/demobrowser/fullscreennotification.cpp
new file mode 100644
index 000000000..8ee968bec
--- /dev/null
+++ b/examples/webenginewidgets/demobrowser/fullscreennotification.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** 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);
+}
diff --git a/examples/webenginewidgets/demobrowser/fullscreennotification.h b/examples/webenginewidgets/demobrowser/fullscreennotification.h
new file mode 100644
index 000000000..051075ab3
--- /dev/null
+++ b/examples/webenginewidgets/demobrowser/fullscreennotification.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef FULLSCREENNOTIFICATION_H
+#define FULLSCREENNOTIFICATION_H
+
+#include <QWidget>
+
+class QLabel;
+class QGridLayout;
+class QPropertyAnimation;
+
+class FullScreenNotification : public QWidget
+{
+    Q_OBJECT
+public:
+    FullScreenNotification(QWidget *parent = 0);
+    ~FullScreenNotification();
+
+    void show();
+    void hide();
+
+public slots:
+    void fadeOut();
+    void fadeOutFinished();
+
+private:
+    QLabel *m_label;
+    QGridLayout *m_layout;
+    QPropertyAnimation *m_animation;
+    int width;
+    int height;
+    int x;
+    int y;
+};
+
+
+#endif // FULLSCREENNOTIFICATION_H
diff --git a/examples/webenginewidgets/demobrowser/tabwidget.cpp b/examples/webenginewidgets/demobrowser/tabwidget.cpp
index 4e2073b11..3b2069858 100644
--- a/examples/webenginewidgets/demobrowser/tabwidget.cpp
+++ b/examples/webenginewidgets/demobrowser/tabwidget.cpp
@@ -44,6 +44,7 @@
 #include "browserapplication.h"
 #include "browsermainwindow.h"
 #include "downloadmanager.h"
+#include "fullscreennotification.h"
 #include "history.h"
 #include "urllineedit.h"
 #include "webview.h"
@@ -88,6 +89,7 @@ TabBar::TabBar(QWidget *parent)
 
 TabWidget::~TabWidget()
 {
+    delete m_fullScreenNotification;
     delete m_fullScreenView;
 }
 
@@ -220,6 +222,7 @@ TabWidget::TabWidget(QWidget *parent)
     , m_tabBar(new TabBar(this))
     , m_profile(QWebEngineProfile::defaultProfile())
     , m_fullScreenView(0)
+    , m_fullScreenNotification(0)
 {
     setElideMode(Qt::ElideRight);
 
@@ -355,23 +358,33 @@ void TabWidget::currentChanged(int index)
 
 void TabWidget::fullScreenRequested(const QWebEngineFullScreenRequest &request)
 {
+    WebPage *webPage = qobject_cast<WebPage*>(sender());
     if (request.toggleOn()) {
-        if (!m_fullScreenView)
+        if (!m_fullScreenView) {
             m_fullScreenView = new QWebEngineView();
-        WebPage *webPage = qobject_cast<WebPage*>(sender());
+            m_fullScreenNotification = new FullScreenNotification(m_fullScreenView);
+
+            QAction *exitFullScreenAction = new QAction(m_fullScreenView);
+            exitFullScreenAction->setShortcut(Qt::Key_Escape);
+            connect(exitFullScreenAction, &QAction::triggered, [webPage] {
+                webPage->triggerAction(QWebEnginePage::ExitFullScreen);
+            });
+            m_fullScreenView->addAction(exitFullScreenAction);
+        }
         webPage->setView(m_fullScreenView);
         request.accept();
         m_fullScreenView->showFullScreen();
         m_fullScreenView->raise();
+        m_fullScreenNotification->show();
     } else {
         if (!m_fullScreenView)
             return;
-        WebPage *webPage = qobject_cast<WebPage*>(sender());
         WebView *oldWebView = this->webView(m_lineEdits->currentIndex());
         webPage->setView(oldWebView);
         request.accept();
         raise();
         m_fullScreenView->hide();
+        m_fullScreenNotification->hide();
     }
 }
 
diff --git a/examples/webenginewidgets/demobrowser/tabwidget.h b/examples/webenginewidgets/demobrowser/tabwidget.h
index 3a1fe7171..f71ac398a 100644
--- a/examples/webenginewidgets/demobrowser/tabwidget.h
+++ b/examples/webenginewidgets/demobrowser/tabwidget.h
@@ -129,6 +129,7 @@ private:
 #include <QtCore/QUrl>
 #include <QtWidgets/QTabWidget>
 QT_BEGIN_NAMESPACE
+class FullScreenNotification;
 class QCompleter;
 class QLineEdit;
 class QMenu;
@@ -235,6 +236,7 @@ private:
     TabBar *m_tabBar;
     QWebEngineProfile *m_profile;
     QWebEngineView *m_fullScreenView;
+    FullScreenNotification *m_fullScreenNotification;
 };
 
 #endif // TABWIDGET_H