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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWAYLANDDND_H
#define QWAYLANDDND_H

#include <QtGui/QPlatformDrag>
#include <QtCore/QMimeData>
#include "qwaylanddisplay.h"

class QWaylandDragWrapper;
class QWaylandDragOfferWrapper;
class QSocketNotifier;

class QWaylandDrag : public QObject, public QPlatformDrag
{
    Q_OBJECT

public:
    static QWaylandDrag *instance(QWaylandDisplay *display);
    ~QWaylandDrag();
    void createDragOffer(uint32_t id);

    QMimeData *platformDropData();
    void startDrag();
    void move(const QMouseEvent *) { }
    void drop(const QMouseEvent *) { }
    void cancel() { }

private slots:
    void pipeReadable(int fd);

private:
    QWaylandDrag(QWaylandDisplay *display);

    QWaylandDisplay *mDisplay;
    QMimeData *mDropData;
    QWaylandDragWrapper *mCurrentDrag;
    QWaylandDragOfferWrapper *mCurrentOffer;
    int mPipeWriteEnd;
    QSocketNotifier *mPipeWatcher;
    QByteArray mPipeData;
    QString mMimeFormat;
    friend class QWaylandDragWrapper;
    friend class QWaylandDragOfferWrapper;
};

#endif // QWAYLANDDND_H