forked from enlightenment/efl
efl/gesture: more accurately handle flick/momentum recognition with multi-touch
if we have one of these gestures where we are flicking/momentuming with multiple touch points, we want to permit this so long as the touch points are moving vaguely in the same direction, e.g., press -> swipe with 2 fingers with this, we now cancel these gestures with multi-touch active if we detect motion with subsequent touch events that doesn't match the vector of the "active" press for which we are monitoring events Reviewed-by: woochan lee <wc0917.lee@samsung.com> Differential Revision: https://phab.enlightenment.org/D11165
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@ -178,6 +178,7 @@ _efl_canvas_gesture_recognizer_flick_efl_canvas_gesture_recognizer_recognize(Eo
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unsigned char glayer_continues_enable;
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Efl_Canvas_Gesture_Recognizer_Result result = EFL_GESTURE_RECOGNIZER_RESULT_CANCEL;
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Eina_Bool touch_up = EINA_FALSE;
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int points = efl_gesture_touch_points_count_get(event);
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Efl_Canvas_Gesture_Flick_Data *fd = efl_data_scope_get(gesture, EFL_CANVAS_GESTURE_FLICK_CLASS);
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Efl_Canvas_Gesture_Recognizer_Data *rd = efl_data_scope_get(obj, EFL_CANVAS_GESTURE_RECOGNIZER_CLASS);
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Eina_Bool dead = EINA_FALSE;
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@ -220,8 +221,26 @@ _efl_canvas_gesture_recognizer_flick_efl_canvas_gesture_recognizer_recognize(Eo
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if (efl_gesture_touch_cur_timestamp_get(event) - efl_gesture_timestamp_get(gesture) < TAP_TOUCH_TIME_THRESHOLD)
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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}
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if (pd->t_st && (fd->id != efl_gesture_touch_cur_data_get(event)->id))
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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if (pd->t_st && (points > 1) && (fd->id != efl_gesture_touch_cur_data_get(event)->id))
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{
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int xdir[2], ydir[2];
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const Efl_Gesture_Touch_Point_Data *data = efl_gesture_touch_cur_data_get(event);
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const Efl_Gesture_Touch_Point_Data *data2;
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if (fd->id == -1) return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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data2 = efl_gesture_touch_data_get(event, fd->id);
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xdir[0] = _direction_get(data->prev.pos.x, data->cur.pos.x);
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ydir[0] = _direction_get(data->prev.pos.y, data->cur.pos.y);
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xdir[1] = _direction_get(data2->prev.pos.x, data2->cur.pos.x);
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ydir[1] = _direction_get(data2->prev.pos.y, data2->cur.pos.y);
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if ((xdir[0] != xdir[1]) || (ydir[0] != ydir[1]))
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{
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rd->continues = EINA_FALSE;
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memset(pd, 0, sizeof(Efl_Canvas_Gesture_Recognizer_Flick_Data));
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return EFL_GESTURE_RECOGNIZER_RESULT_CANCEL;
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}
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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}
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_single_line_process(obj, pd, gesture, fd, event);
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_vector_get(pd->st_line, efl_gesture_touch_cur_point_get(event),
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@ -77,18 +77,42 @@ _efl_canvas_gesture_recognizer_momentum_efl_canvas_gesture_recognizer_recognize(
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//It does not have any meanging of this gesture.
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if (glayer_continues_enable && !pd->touched)
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{
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pd->touched = EINA_TRUE;
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if (efl_gesture_touch_state_get(event) != EFL_GESTURE_TOUCH_STATE_END)
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{
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/* guard against successive multi-touch cancels */
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if (efl_gesture_touch_points_count_get(event) == 1)
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{
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pd->touched = EINA_TRUE;
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md->id = -1;
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}
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}
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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}
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if (pd->touched && (efl_gesture_touch_cur_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_cur_timestamp_get(event) - efl_gesture_timestamp_get(gesture) < TAP_TOUCH_TIME_THRESHOLD)
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if (efl_gesture_touch_points_count_get(event) > 1)
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{
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if (efl_gesture_touch_cur_timestamp_get(event) - efl_gesture_touch_prev_data_get(event)->cur.timestamp < TAP_TOUCH_TIME_THRESHOLD)
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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}
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else if (efl_gesture_touch_cur_timestamp_get(event) - efl_gesture_timestamp_get(gesture) < TAP_TOUCH_TIME_THRESHOLD)
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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}
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if (pd->t_st && (md->id != efl_gesture_touch_cur_data_get(event)->id))
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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if (pd->t_st && (md->id != -1) && (md->id != efl_gesture_touch_cur_data_get(event)->id))
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{
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int xdir, ydir;
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const Efl_Gesture_Touch_Point_Data *data = efl_gesture_touch_cur_data_get(event);
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xdir = _direction_get(data->prev.pos.x, data->cur.pos.x);
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ydir = _direction_get(data->prev.pos.y, data->cur.pos.y);
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if ((xdir != pd->xdir) || (ydir != pd->ydir))
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{
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memset(pd, 0, sizeof(Efl_Canvas_Gesture_Recognizer_Momentum_Data));
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return EFL_GESTURE_RECOGNIZER_RESULT_CANCEL;
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}
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return EFL_GESTURE_RECOGNIZER_RESULT_IGNORE;
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}
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switch (efl_gesture_touch_state_get(event))
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{
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