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diff --git a/tests/manual/subsurface/main.cpp b/tests/manual/subsurface/main.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2015 LG Electronics Inc, author: <mikko.levonmaa@lge.com>
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of The Qt Company Ltd nor the names of its
+** contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QGuiApplication>
+#include <QQmlEngine>
+#include <QQmlFileSelector>
+#include <QQmlContext>
+#include <QQuickView>
+
+#include <QtPlatformHeaders/qwaylandwindowfunctions.h>
+
+#include "shmwindow.h"
+
+class Filter : public QObject
+{
+ Q_OBJECT
+ Q_PROPERTY(bool sync READ getSync NOTIFY syncChanged)
+
+public:
+ Filter()
+ {
+ sync = false;
+ }
+
+ bool eventFilter(QObject *object, QEvent *event)
+ {
+ Q_UNUSED(object);
+ if (event->type() == QEvent::KeyPress) {
+ QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+ if (keyEvent->key() == Qt::Key_Space) {
+ toggleSync(quick);
+ toggleSync(shm);
+ }
+ }
+ return false;
+ }
+
+ void toggleSync(QWindow *w)
+ {
+ sync = !QWaylandWindowFunctions::isSync(w);
+ if (QWaylandWindowFunctions::isSync(w))
+ QWaylandWindowFunctions::setDeSync(w);
+ else
+ QWaylandWindowFunctions::setSync(w);
+ emit syncChanged();
+ }
+
+ bool getSync() const
+ {
+ return sync;
+ }
+
+Q_SIGNALS:
+ void syncChanged();
+
+public:
+ QWindow *quick;
+ QWindow *shm;
+ bool sync;
+};
+
+int main(int argc, char* argv[])
+{
+ QGuiApplication app(argc, argv);
+ QQuickView view;
+ view.connect(view.engine(), SIGNAL(quit()), &app, SLOT(quit()));
+ view.setResizeMode(QQuickView::SizeRootObjectToView);
+
+ Filter f;
+ view.rootContext()->setContextProperty("syncStatus", &f);
+ view.installEventFilter(&f);
+
+ view.setSource(QUrl("qrc:/main.qml"));
+ view.show();
+
+ QQuickView child(&view);
+ child.connect(child.engine(), SIGNAL(quit()), &app, SLOT(quit()));
+ child.setSource(QUrl("qrc:/child.qml"));
+ child.setResizeMode(QQuickView::SizeRootObjectToView);
+ child.setGeometry(QRect(150, 70, 100, 100));
+ child.show();
+
+ ShmWindow shm(&view);
+ shm.setGeometry(QRect(30, 30, 50, 50));
+ shm.show();
+
+ f.quick = &child;
+ f.shm = &shm;
+
+ return app.exec();
+}
+
+#include "main.moc"
+