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#ifndef QWAYLANDDATADEVICE_H
#define QWAYLANDDATADEVICE_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QObject>
#include <QPoint>

#include <QtWaylandClient/private/qwayland-wayland.h>

QT_BEGIN_NAMESPACE

class QMimeData;
class QWindow;

namespace QtWaylandClient {

class QWaylandDisplay;
class QWaylandDataDeviceManager;
class QWaylandDataOffer;
class QWaylandDataSource;
class QWaylandInputDevice;
class QWaylandWindow;

class QWaylandDataDevice : public QObject, public QtWayland::wl_data_device
{
    Q_OBJECT
public:
    QWaylandDataDevice(QWaylandDataDeviceManager *manager, QWaylandInputDevice *inputDevice);
    ~QWaylandDataDevice();

    QWaylandDataOffer *selectionOffer() const;
    void invalidateSelectionOffer();
    QWaylandDataSource *selectionSource() const;
    void setSelectionSource(QWaylandDataSource *source);

    QWaylandDataOffer *dragOffer() const;
    void startDrag(QMimeData *mimeData, QWaylandWindow *icon);
    void cancelDrag();

protected:
    void data_device_data_offer(struct ::wl_data_offer *id) Q_DECL_OVERRIDE;
    void data_device_drop() Q_DECL_OVERRIDE;
    void data_device_enter(uint32_t serial, struct ::wl_surface *surface, wl_fixed_t x, wl_fixed_t y, struct ::wl_data_offer *id) Q_DECL_OVERRIDE;
    void data_device_leave() Q_DECL_OVERRIDE;
    void data_device_motion(uint32_t time, wl_fixed_t x, wl_fixed_t y) Q_DECL_OVERRIDE;
    void data_device_selection(struct ::wl_data_offer *id) Q_DECL_OVERRIDE;

private Q_SLOTS:
    void selectionSourceCancelled();
    void dragSourceCancelled();
    void dragSourceTargetChanged(const QString &mimeType);

private:
    QWaylandDisplay *m_display;
    QWaylandInputDevice *m_inputDevice;
    uint32_t m_enterSerial;
    QWindow *m_dragWindow;
    QPoint m_dragPoint;
    QScopedPointer<QWaylandDataOffer> m_dragOffer;
    QScopedPointer<QWaylandDataOffer> m_selectionOffer;
    QScopedPointer<QWaylandDataSource> m_selectionSource;

    QScopedPointer<QWaylandDataSource> m_dragSource;
};

}

QT_END_NAMESPACE

#endif // QWAYLANDDATADEVICE_H
