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#ifndef QTWAYLAND_QWLTOUCH_P_H
#define QTWAYLAND_QWLTOUCH_P_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 <QtCompositor/qwaylandexport.h>

#include <QtCore/QPoint>
#include <QtCore/QObject>

#include <QtCompositor/private/qwayland-server-wayland.h>

#include "qwllistener_p.h"

QT_BEGIN_NAMESPACE

class QWaylandSurfaceView;

namespace QtWayland {

class Compositor;
class Surface;
class Touch;

class Q_COMPOSITOR_EXPORT TouchGrabber {
public:
    TouchGrabber();
    virtual ~TouchGrabber();

    virtual void down(uint32_t time, int touch_id, const QPointF &position) = 0;
    virtual void up(uint32_t time, int touch_id) = 0;
    virtual void motion(uint32_t time, int touch_id, const QPointF &position) = 0;

    const Touch *touch() const;
    Touch *touch();
    void setTouch(Touch *touch);

private:
    Touch *m_touch;
};

class Q_COMPOSITOR_EXPORT Touch : public QObject, public QtWaylandServer::wl_touch, public TouchGrabber
{
public:
    explicit Touch(Compositor *compositor);

    void setFocus(QWaylandSurfaceView *surface);

    void startGrab(TouchGrabber *grab);
    void endGrab();

    void sendCancel();
    void sendFrame();

    void sendDown(int touch_id, const QPointF &position);
    void sendMotion(int touch_id, const QPointF &position);
    void sendUp(int touch_id);

    void down(uint32_t time, int touch_id, const QPointF &position);
    void up(uint32_t time, int touch_id);
    void motion(uint32_t time, int touch_id, const QPointF &position);

private:
    void focusDestroyed(void *data);
    void touch_destroy_resource(Resource *resource) Q_DECL_OVERRIDE;
    void touch_release(Resource *resource) Q_DECL_OVERRIDE;

    Compositor *m_compositor;

    QWaylandSurfaceView *m_focus;
    Resource *m_focusResource;
    WlListener m_focusDestroyListener;

    TouchGrabber *m_grab;
};

} // namespace QtWayland

QT_END_NAMESPACE

#endif // QTWAYLAND_QWLTOUCH_P_H
