forked from enlightenment/efl
106 lines
3.6 KiB
C
106 lines
3.6 KiB
C
#include "efl_canvas_gesture_private.h"
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#define MY_CLASS EFL_CANVAS_GESTURE_RECOGNIZER_TAP_CLASS
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//FIXME: It doesnt have matched config value.
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// may using dobule tap timeout value?
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#define EFL_GESTURE_RECOGNIZER_TYPE_TAP_TIME_OUT 0.33
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EOLIAN static const Efl_Class *
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_efl_canvas_gesture_recognizer_tap_efl_canvas_gesture_recognizer_type_get(const Eo *obj EINA_UNUSED, Efl_Canvas_Gesture_Recognizer_Tap_Data *pd EINA_UNUSED)
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{
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return EFL_CANVAS_GESTURE_TAP_CLASS;
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}
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static Eina_Bool
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_tap_timeout_cb(void *data)
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{
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Efl_Canvas_Gesture_Recognizer_Tap_Data *pd = data;
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pd->timeout = NULL;
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efl_gesture_state_set(pd->gesture, EFL_GESTURE_STATE_CANCELED);
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efl_event_callback_call(pd->target, EFL_EVENT_GESTURE_TAP, pd->gesture);
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return ECORE_CALLBACK_CANCEL;
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}
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EOLIAN static Efl_Canvas_Gesture_Recognizer_Result
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_efl_canvas_gesture_recognizer_tap_efl_canvas_gesture_recognizer_recognize(Eo *obj EINA_UNUSED,
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Efl_Canvas_Gesture_Recognizer_Tap_Data *pd,
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Efl_Canvas_Gesture *gesture,
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Efl_Object *watched,
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Efl_Canvas_Gesture_Touch *event)
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{
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double length;
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Eina_Position2D pos;
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Eina_Vector2 dist;
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Efl_Canvas_Gesture_Recognizer_Result result = EFL_GESTURE_RECOGNIZER_RESULT_CANCEL;
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pd->target = watched;
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pd->gesture = gesture;
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switch (efl_gesture_touch_state_get(event))
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{
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case EFL_GESTURE_TOUCH_STATE_BEGIN:
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{
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new_tap:
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pos = efl_gesture_touch_start_point_get(event);
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efl_gesture_hotspot_set(gesture, pos);
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if (pd->timeout)
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ecore_timer_del(pd->timeout);
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pd->timeout = ecore_timer_add(EFL_GESTURE_RECOGNIZER_TYPE_TAP_TIME_OUT, _tap_timeout_cb, pd);
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result = EFL_GESTURE_RECOGNIZER_RESULT_TRIGGER;
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break;
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}
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case EFL_GESTURE_TOUCH_STATE_UPDATE:
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/* multi-touch */
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if (efl_gesture_touch_current_data_get(event)->action == EFL_POINTER_ACTION_DOWN)
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{
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/* a second finger was pressed at the same time-ish as the first: combine into same event */
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if (efl_gesture_touch_current_timestamp_get(event) - efl_gesture_timestamp_get(gesture) < TAP_TOUCH_TIME_THRESHOLD)
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{
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result = EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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break;
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}
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/* another distinct touch occurred, treat this as a new touch */
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goto new_tap;
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}
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EINA_FALLTHROUGH;
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case EFL_GESTURE_TOUCH_STATE_END:
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{
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if (pd->timeout)
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{
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ecore_timer_del(pd->timeout);
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pd->timeout = NULL;
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}
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if (_event_multi_touch_get(event)) return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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if (efl_gesture_state_get(gesture) != EFL_GESTURE_STATE_NONE)
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{
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dist = efl_gesture_touch_distance(event, efl_gesture_touch_current_data_get(event)->id);
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length = fabs(dist.x) + fabs(dist.y);
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if (length <= pd->finger_size)
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{
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if (efl_gesture_touch_state_get(event) == EFL_GESTURE_TOUCH_STATE_END)
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result = EFL_GESTURE_RECOGNIZER_RESULT_FINISH;
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else
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result = EFL_GESTURE_RECOGNIZER_RESULT_TRIGGER;
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}
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}
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break;
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}
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default:
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break;
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}
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return result;
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}
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#include "efl_canvas_gesture_recognizer_tap.eo.c"
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