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diff --git a/src/compositor/global/qwaylandextension.h b/src/compositor/global/qwaylandextension.h
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+/****************************************************************************
+**
+** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDEXTENSION_H
+#define QWAYLANDEXTENSION_H
+
+#include <QtCompositor/qwaylandexport.h>
+#include <wayland-server.h>
+
+#include <QtCore/QObject>
+#include <QtCore/QVector>
+
+QT_BEGIN_NAMESPACE
+
+class QWaylandCompositor;
+class QWaylandExtensionContainer;
+class QWaylandExtensionPrivate;
+
+class Q_COMPOSITOR_EXPORT QWaylandExtension : public QObject
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QWaylandExtension)
+public:
+    QWaylandExtension(QWaylandExtensionContainer *container, QObject *parent = 0);
+    virtual ~QWaylandExtension();
+
+    virtual const struct wl_interface *interface() const = 0;
+
+    const QByteArray name() const { return interface()->name; }
+    quint32 version() const { return interface()->version; }
+
+protected:
+    QWaylandExtension(QWaylandExtensionPrivate &dd, QObject *parent = 0);
+};
+
+class Q_COMPOSITOR_EXPORT QWaylandExtensionContainer
+{
+public:
+    virtual ~QWaylandExtensionContainer();
+
+    QWaylandExtension *extension(const QByteArray &name);
+    QWaylandExtension *extension(const wl_interface *interface);
+    QVector<QWaylandExtension *> extensions() const;
+    void addExtension(QWaylandExtension *extension);
+    void removeExtension(QWaylandExtension *extension);
+
+protected:
+    QVector<QWaylandExtension *> extension_vector;
+};
+
+class QWaylandExtensionTemplatePrivate;
+class Q_COMPOSITOR_EXPORT QWaylandExtensionTemplate : public QWaylandExtension
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QWaylandExtensionTemplate)
+public:
+    QWaylandExtensionTemplate(QWaylandExtensionContainer *container, QObject *parent = 0);
+
+    const struct wl_interface *interface() const Q_DECL_OVERRIDE;
+
+protected:
+    QWaylandExtensionTemplate(QWaylandExtensionTemplatePrivate &dd, QObject *parent = 0);
+};
+
+QT_END_NAMESPACE
+
+#endif