/*
 * Copyright 2009, Alexandre Deckner, alex@zappotek.com
 * Distributed under the terms of the MIT License.
 */
#ifndef LONG_AND_DRAG_TRACKING_FILTER_H
#define LONG_AND_DRAG_TRACKING_FILTER_H


#include <MessageFilter.h>
#include <Point.h>


class BHandler;
class BMessageRunner;


namespace BPrivate {

class LongAndDragTrackingFilter : public BMessageFilter {
public:
                                                                LongAndDragTrackingFilter(
                                                                        uint32 longMessageWhat,
                                                                        uint32 dragMessageWhat,
                                                                        float radiusThreshold = 4.0f,
                                                                        bigtime_t durationThreshold = 0);
                                                                ~LongAndDragTrackingFilter();

                        filter_result           Filter(BMessage* message, BHandler** target);

private:
                        void                            _StopTracking();

                        uint32                          fLongMessageWhat;
                        uint32                          fDragMessageWhat;
                        BMessageRunner*         fMessageRunner;
                        BPoint                          fClickPoint;
                        uint32                          fClickButtons;
                        float                           fSquaredRadiusThreshold;
                        bigtime_t                       fDurationThreshold;
};

}       // namespace BPrivate

using BPrivate::LongAndDragTrackingFilter;

#endif  // LONG_AND_DRAG_TRACKING_FILTER_H