1 #include <Elementary.h>
3 /** @defgroup Elm_Gesture_Layer Gesture Layer */
6 #define ELM_MOUSE_DEVICE 0
7 /* ELM_GESTURE_NEGATIVE_ANGLE - magic number says we didn't compute this yet */
8 #define ELM_GESTURE_NEGATIVE_ANGLE (-1.0) /* Magic number */
9 #define ELM_GESTURE_MOMENTUM_TIMEOUT 50
10 #define ELM_GESTURE_MULTI_TIMEOUT 50
11 #define ELM_GESTURE_MINIMUM_MOMENTUM 0.001
13 /* Some Trigo values */
14 #define RAD_90DEG M_PI_2
15 #define RAD_180DEG M_PI
16 #define RAD_270DEG (M_PI_2 * 3)
17 #define RAD_360DEG (M_PI * 2)
18 /* #define DEBUG_GESTURE_LAYER 1 */
20 #define RAD2DEG(x) ((x) * 57.295779513)
21 #define DEG2RAD(x) ((x) / 57.295779513)
24 _glayer_bufdup(void *buf, size_t size)
31 #define COPY_EVENT_INFO(EV) _glayer_bufdup(EV, sizeof(*EV))
34 #define SET_TEST_BIT(P) do { \
35 P->test = P->fn[ELM_GESTURE_STATE_START].cb || P->fn[ELM_GESTURE_STATE_MOVE].cb || P->fn[ELM_GESTURE_STATE_END].cb || P->fn[ELM_GESTURE_STATE_ABORT].cb; \
38 #define IS_TESTED(T) ((wd->gesture[T]) ? wd->gesture[T]->test : EINA_FALSE)
44 * Struct holds callback information.
46 * @ingroup Elm_Gesture_Layer
50 void *user_data; /**< Holds user data to CB (like sd) */
51 Elm_Gesture_Event_Cb cb;
58 * type for callback information
60 * @ingroup Elm_Gesture_Layer
62 typedef struct _Func_Data Func_Data;
67 * @struct _Gesture_Info
68 * Struct holds gesture info
70 * @ingroup Elm_Gesture_Layer
75 void *data; /**< Holds gesture intemidiate processing data */
76 Func_Data fn[ELM_GESTURE_STATE_ABORT + 1]; /**< Callback info for states */
77 Elm_Gesture_Types g_type; /**< gesture type */
78 Elm_Gesture_State state; /**< gesture state */
79 void *info; /**< Data for the state callback */
80 Eina_Bool test; /**< if true this gesture should be tested on input */
86 * @typedef Gesture_Info
87 * Type for _Gesture_Info
89 * @ingroup Elm_Gesture_Layer
91 typedef struct _Gesture_Info Gesture_Info;
96 * @struct _Event_History
97 * Struct holds event history.
98 * These events are repeated if no gesture found.
100 * @ingroup Elm_Gesture_Layer
102 struct _Event_History
106 Evas_Callback_Type event_type;
112 * @typedef Event_History
113 * Type for _Event_History
115 * @ingroup Elm_Gesture_Layer
117 typedef struct _Event_History Event_History;
122 * @struct _Pointer_Event
123 * Struct holds pointer-event info
124 * This is a generic pointer event structure
126 * @ingroup Elm_Gesture_Layer
128 struct _Pointer_Event
131 unsigned int timestamp;
133 Evas_Callback_Type event_type;
139 * @typedef Pointer_Event
140 * Type for generic pointer event structure
142 * @ingroup Elm_Gesture_Layer
144 typedef struct _Pointer_Event Pointer_Event;
146 /* All *Type structs hold result for the user in 'info' field
147 * The rest is gesture processing intermediate data.
148 * NOTE: info field must be FIRST in the struct.
149 * This is used when reporting ABORT in event_history_clear() */
152 Elm_Gesture_Taps_Info info;
155 unsigned int n_taps_needed;
159 typedef struct _Taps_Type Taps_Type;
161 struct _Long_Tap_Type
163 Elm_Gesture_Taps_Info info;
166 unsigned int max_touched;
167 Ecore_Timer *timeout; /* When this expires, long tap STARTed */
170 typedef struct _Long_Tap_Type Long_Tap_Type;
172 struct _Momentum_Type
173 { /* Fields used by _line_test() */
174 Elm_Gesture_Momentum_Info info;
175 Evas_Coord_Point line_st;
176 Evas_Coord_Point line_end;
177 unsigned int t_st_x; /* Time start on X */
178 unsigned int t_st_y; /* Time start on Y */
179 unsigned int t_end; /* Time end */
180 unsigned int t_up; /* Recent up event time */
183 typedef struct _Momentum_Type Momentum_Type;
187 Evas_Coord_Point line_st;
188 Evas_Coord_Point line_end;
189 Evas_Coord line_length;
190 unsigned int t_st; /* Time start */
191 unsigned int t_end; /* Time end */
193 double line_angle; /* Current angle of line */
195 typedef struct _Line_Data Line_Data;
198 { /* Fields used by _line_test() */
199 Elm_Gesture_Line_Info info;
200 Eina_List *list; /* List of Line_Data */
202 typedef struct _Line_Type Line_Type;
205 { /* Fields used by _zoom_test() */
206 Elm_Gesture_Zoom_Info info;
207 Pointer_Event zoom_st;
208 Pointer_Event zoom_mv;
209 Pointer_Event zoom_st1;
210 Pointer_Event zoom_mv1;
211 Evas_Event_Mouse_Wheel *zoom_wheel;
212 Evas_Coord zoom_base; /* Holds gap between fingers on zoom-start */
213 Evas_Coord zoom_distance_tolerance;
214 unsigned int m_st_tm; /* momentum start time */
215 int dir; /* Direction: 1=zoom-in, (-1)=zoom-out */
216 double m_base; /* zoom value when momentum starts */
219 typedef struct _Zoom_Type Zoom_Type;
222 { /* Fields used by _rotation_test() */
223 Elm_Gesture_Rotate_Info info;
224 Pointer_Event rotate_st;
225 Pointer_Event rotate_mv;
226 Pointer_Event rotate_st1;
227 Pointer_Event rotate_mv1;
228 unsigned int prev_momentum_tm; /* timestamp of prev_momentum */
229 double prev_momentum; /* Snapshot of momentum 0.01 sec ago */
230 double accum_momentum;
231 double rotate_angular_tolerance;
234 typedef struct _Rotate_Type Rotate_Type;
238 Evas_Object *target; /* Target Widget */
239 Event_History *event_history_list;
242 Evas_Coord zoom_distance_tolerance;
243 Evas_Coord line_distance_tolerance;
244 double line_angular_tolerance;
245 double zoom_wheel_factor; /* mouse wheel zoom steps */
246 double zoom_finger_factor; /* used for zoom factor */
247 double rotate_angular_tolerance;
248 unsigned int flick_time_limit_ms;
249 double long_tap_start_timeout;
250 Eina_Bool glayer_continues_enable;
255 Gesture_Info *gesture[ELM_GESTURE_LAST];
256 Ecore_Timer *dbl_timeout; /* When this expires, dbl click/taps ABORTed */
257 Eina_List *pending; /* List of devices need to refeed *UP event */
258 Eina_List *touched; /* Information of touched devices */
260 Eina_Bool repeat_events : 1;
262 typedef struct _Widget_Data Widget_Data;
264 static const char *widtype = NULL;
265 static void _del_hook(Evas_Object *obj);
267 static Eina_Bool _event_history_clear(Evas_Object *obj);
268 static void _reset_states(Widget_Data *wd);
269 static void _key_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
270 static void _key_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
271 static void _zoom_with_wheel_test(Evas_Object *obj, void *event_info, Evas_Callback_Type event_type, Elm_Gesture_Types g_type);
272 static void _mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
273 static void _mouse_down(void *data, Evas *e, Evas_Object *obj, void *event_info);
274 static void _mouse_move(void *data, Evas *e, Evas_Object *obj, void *event_info);
275 static void _mouse_up(void *data, Evas *e, Evas_Object *obj, void *event_info);
277 static void _multi_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
278 static void _multi_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
279 static void _multi_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
281 /* START - Functions to manage touched-device list */
284 * This function is used to find if device is touched
286 * @ingroup Elm_Gesture_Layer
289 compare_device(const void *data1, const void *data2)
290 { /* Compare the two device numbers */
291 return (((Pointer_Event *) data1)->device -((Pointer_Event *) data2)->device);
297 * Remove Pointer Event from touched device list
298 * @param list Pointer to touched device list.
299 * @param Pointer_Event Pointer to PE.
301 * @ingroup Elm_Gesture_Layer
304 _remove_touched_device(Eina_List *list, Pointer_Event *pe)
306 Eina_List *lst = NULL;
307 Pointer_Event *p = eina_list_search_unsorted(list, compare_device, pe);
310 lst = eina_list_remove(list, p);
321 * Recoed Pointer Event in touched device list
322 * Note: This fuction allocates memory for PE event
323 * This memory is released in _remove_touched_device()
324 * @param list Pointer to touched device list.
325 * @param Pointer_Event Pointer to PE.
327 * @ingroup Elm_Gesture_Layer
330 _add_touched_device(Eina_List *list, Pointer_Event *pe)
332 Pointer_Event *p = eina_list_search_unsorted(list, compare_device, pe);
334 { /* We like to track device touch-position, overwrite info */
335 memcpy(p, pe, sizeof(Pointer_Event));
339 if ((pe->event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
340 (pe->event_type == EVAS_CALLBACK_MULTI_DOWN))
341 { /* Add touched device on DOWN event only */
342 p = malloc(sizeof(Pointer_Event));
343 /* Freed in _remove_touched_device() */
344 memcpy(p, pe, sizeof(Pointer_Event));
345 return eina_list_append(list, p);
350 /* END - Functions to manage touched-device list */
356 * @param event_info pointer to event.
358 * @ingroup Elm_Gesture_Layer
360 static Evas_Event_Flags
361 _get_event_flag(void *event_info, Evas_Callback_Type event_type)
365 case EVAS_CALLBACK_MOUSE_IN:
366 return ((Evas_Event_Mouse_In *) event_info)->event_flags;
367 case EVAS_CALLBACK_MOUSE_OUT:
368 return ((Evas_Event_Mouse_Out *) event_info)->event_flags;
369 case EVAS_CALLBACK_MOUSE_DOWN:
370 return ((Evas_Event_Mouse_Down *) event_info)->event_flags;
371 case EVAS_CALLBACK_MOUSE_MOVE:
372 return ((Evas_Event_Mouse_Move *) event_info)->event_flags;
373 case EVAS_CALLBACK_MOUSE_UP:
374 return ((Evas_Event_Mouse_Up *) event_info)->event_flags;
375 case EVAS_CALLBACK_MOUSE_WHEEL:
376 return ((Evas_Event_Mouse_Wheel *) event_info)->event_flags;
377 case EVAS_CALLBACK_MULTI_DOWN:
378 return ((Evas_Event_Multi_Down *) event_info)->event_flags;
379 case EVAS_CALLBACK_MULTI_MOVE:
380 return ((Evas_Event_Multi_Move *) event_info)->event_flags;
381 case EVAS_CALLBACK_MULTI_UP:
382 return ((Evas_Event_Multi_Up *) event_info)->event_flags;
383 case EVAS_CALLBACK_KEY_DOWN:
384 return ((Evas_Event_Key_Down *) event_info)->event_flags;
385 case EVAS_CALLBACK_KEY_UP:
386 return ((Evas_Event_Key_Up *) event_info)->event_flags;
388 return EVAS_EVENT_FLAG_NONE;
395 * Sets event flag to value returned from user callback
396 * @param wd Widget Data
397 * @param event_info pointer to event.
398 * @param event_type what type was ev (mouse down, etc...)
399 * @param ev_flags event flags
401 * @ingroup Elm_Gesture_Layer
404 consume_event(Widget_Data *wd, void *event_info,
405 Evas_Callback_Type event_type, Evas_Event_Flags ev_flags)
406 { /* Mark EVAS_EVENT_FLAG_ON_HOLD on events that are used by gesture layer */
407 /* ev_flags != EVAS_EVENT_FLAG_NONE means target used event and g-layer */
408 /* should not refeed this event. */
410 return; /* This happens when restarting gestures */
412 if ((ev_flags) || (!wd->repeat_events))
416 case EVAS_CALLBACK_MOUSE_DOWN:
417 ((Evas_Event_Mouse_Down *) event_info)->event_flags |= ev_flags;
419 case EVAS_CALLBACK_MOUSE_MOVE:
420 ((Evas_Event_Mouse_Move *) event_info)->event_flags |= ev_flags;
422 case EVAS_CALLBACK_MOUSE_UP:
423 ((Evas_Event_Mouse_Up *) event_info)->event_flags |= ev_flags;
425 case EVAS_CALLBACK_MOUSE_WHEEL:
426 ((Evas_Event_Mouse_Wheel *) event_info)->event_flags |= ev_flags;
428 case EVAS_CALLBACK_MULTI_DOWN:
429 ((Evas_Event_Multi_Down *) event_info)->event_flags |= ev_flags;
431 case EVAS_CALLBACK_MULTI_MOVE:
432 ((Evas_Event_Multi_Move *) event_info)->event_flags |= ev_flags;
434 case EVAS_CALLBACK_MULTI_UP:
435 ((Evas_Event_Multi_Up *) event_info)->event_flags |= ev_flags;
437 case EVAS_CALLBACK_KEY_DOWN:
438 ((Evas_Event_Key_Down *) event_info)->event_flags |= ev_flags;
440 case EVAS_CALLBACK_KEY_UP:
441 ((Evas_Event_Key_Up *) event_info)->event_flags |= ev_flags;
452 * Report current state of a gesture by calling user callback.
453 * @param gesture what gesture state we report.
454 * @param info inforamtion for user callback
456 * @ingroup Elm_Gesture_Layer
458 static Evas_Event_Flags
459 _report_state(Gesture_Info *gesture, void *info)
460 { /* We report current state (START, MOVE, END, ABORT), once */
461 #if defined(DEBUG_GESTURE_LAYER)
462 printf("%s reporting gesture=<%d> state=<%d>\n" , __func__, gesture->g_type,
465 if ((gesture->state != ELM_GESTURE_STATE_UNDEFINED) &&
466 (gesture->fn[gesture->state].cb))
467 { /* Fill state-info struct and send ptr to user callback */
468 return gesture->fn[gesture->state].cb(
469 gesture->fn[gesture->state].user_data, info);
472 return EVAS_EVENT_FLAG_NONE;
478 * Update state for a given gesture.
479 * We may update gesture state to:
480 * UNDEFINED - current input did not start gesure yet.
481 * START - gesture started according to input.
482 * MOVE - gusture in progress.
483 * END - gesture completed according to input.
484 * ABORT - input does not matches gesure.
485 * note that we may move from UNDEFINED to ABORT
486 * because we may detect that gesture will not START
487 * with a given input.
489 * @param g given gesture to change state.
490 * @param s gesure new state.
491 * @param info buffer to be sent to user callback on report_state.
492 * @param force makes report_state to report the new-state even
493 * if its same as current state. Works for MOVE - gesture in progress.
495 * @ingroup Elm_Gesture_Layer
497 static Evas_Event_Flags
498 _set_state(Gesture_Info *g, Elm_Gesture_State s,
499 void *info, Eina_Bool force)
501 Elm_Gesture_State old_state;
502 if ((g->state == s) && (!force))
503 return EVAS_EVENT_FLAG_NONE;
505 old_state = g->state;
508 g->info = info; /* Information for user callback */
509 if ((g->state == ELM_GESTURE_STATE_ABORT) ||
510 (g->state == ELM_GESTURE_STATE_END))
511 g->test = EINA_FALSE;
513 if ((g->state != ELM_GESTURE_STATE_UNDEFINED) &&
514 (!((old_state == ELM_GESTURE_STATE_UNDEFINED) &&
515 (s == ELM_GESTURE_STATE_ABORT))))
516 return _report_state(g, g->info);
518 return EVAS_EVENT_FLAG_NONE;
524 * This resets all gesture states and sets test-bit.
525 * this is used for restarting gestures to listen to input.
526 * happens after we complete a gesture or no gesture was detected.
527 * @param wd Widget data of the gesture-layer object.
529 * @ingroup Elm_Gesture_Layer
532 _reset_states(Widget_Data *wd)
536 for (i = ELM_GESTURE_FIRST; i < ELM_GESTURE_LAST; i++)
541 _set_state(p, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
550 * if gesture was NOT detected AND we only have gestures in ABORT state
551 * we clear history immediately to be ready for input.
553 * @param obj The gesture-layer object.
554 * @return TRUE on event history_clear
556 * @ingroup Elm_Gesture_Layer
559 _clear_if_finished(Evas_Object *obj)
561 Widget_Data *wd = elm_widget_data_get(obj);
562 if (!wd) return EINA_FALSE;
565 /* Clear history if all we have aborted gestures */
566 Eina_Bool reset_s = EINA_TRUE, all_undefined = EINA_TRUE;
567 for (i = ELM_GESTURE_FIRST; i < ELM_GESTURE_LAST; i++)
568 { /* If no gesture started and all we have aborted gestures, reset all */
569 Gesture_Info *p = wd->gesture[i];
570 if ((p) && (p->state != ELM_GESTURE_STATE_UNDEFINED))
572 if ((p->state == ELM_GESTURE_STATE_START) ||
573 (p->state == ELM_GESTURE_STATE_MOVE))
574 reset_s = EINA_FALSE;
576 all_undefined = EINA_FALSE;
580 if (reset_s && (!all_undefined))
581 return _event_history_clear(obj);
587 _inside(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
589 int w = elm_finger_size_get() >> 1; /* Finger size devided by 2 */
605 /* All *test_reset() funcs are called to clear
606 * gesture intermediate data.
607 * This happens when we need to reset our tests.
608 * for example when gesture is detected or all ABORTed. */
610 _tap_gestures_test_reset(Gesture_Info *gesture)
615 Widget_Data *wd = elm_widget_data_get(gesture->obj);
616 wd->dbl_timeout = NULL;
623 EINA_LIST_FREE(((Taps_Type *) gesture->data)->l, data)
624 EINA_LIST_FREE(data, pe)
627 memset(gesture->data, 0, sizeof(Taps_Type));
630 /* All *test_reset() funcs are called to clear
631 * gesture intermediate data.
632 * This happens when we need to reset our tests.
633 * for example when gesture is detected or all ABORTed. */
635 _n_long_tap_test_reset(Gesture_Info *gesture)
643 Long_Tap_Type *st = gesture->data;
646 EINA_LIST_FOREACH(st->touched, l, p)
649 eina_list_free(st->touched);
650 if (st->timeout) ecore_timer_del(st->timeout);
651 memset(gesture->data, 0, sizeof(Long_Tap_Type));
655 _momentum_test_reset(Gesture_Info *gesture)
663 memset(gesture->data, 0, sizeof(Momentum_Type));
667 _line_data_reset(Line_Data *st)
672 memset(st, 0, sizeof(Line_Data));
673 st->line_angle = ELM_GESTURE_NEGATIVE_ANGLE;
677 _line_test_reset(Gesture_Info *gesture)
685 Line_Type *st = gesture->data;
686 Eina_List *list = st->list;
689 EINA_LIST_FOREACH(list, l, t_line)
692 eina_list_free(list);
697 _zoom_test_reset(Gesture_Info *gesture)
705 Widget_Data *wd = elm_widget_data_get(gesture->obj);
706 Zoom_Type *st = gesture->data;
707 Evas_Modifier_Mask mask = evas_key_modifier_mask_get(
708 evas_object_evas_get(wd->target), "Control");
709 evas_object_key_ungrab(wd->target, "Control_L", mask, 0);
710 evas_object_key_ungrab(wd->target, "Control_R", mask, 0);
712 memset(st, 0, sizeof(Zoom_Type));
713 st->zoom_distance_tolerance = wd->zoom_distance_tolerance;
718 _rotate_test_reset(Gesture_Info *gesture)
726 Widget_Data *wd = elm_widget_data_get(gesture->obj);
727 Rotate_Type *st = gesture->data;
729 memset(st, 0, sizeof(Rotate_Type));
730 st->info.base_angle = ELM_GESTURE_NEGATIVE_ANGLE;
731 st->rotate_angular_tolerance = wd->rotate_angular_tolerance;
738 * We register callbacks when gesture layer is attached to an object
739 * or when its enabled after disable.
741 * @param obj The gesture-layer object.
743 * @ingroup Elm_Gesture_Layer
746 _register_callbacks(Evas_Object *obj)
748 Widget_Data *wd = elm_widget_data_get(obj);
753 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_DOWN,
755 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_MOVE,
757 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_UP,
760 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_WHEEL,
763 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_DOWN,
765 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_MOVE,
767 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_UP,
770 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_KEY_DOWN,
772 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_KEY_UP,
780 * We unregister callbacks when gesture layer is disabled.
782 * @param obj The gesture-layer object.
784 * @ingroup Elm_Gesture_Layer
787 _unregister_callbacks(Evas_Object *obj)
789 Widget_Data *wd = elm_widget_data_get(obj);
794 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_DOWN,
796 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_MOVE,
798 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_UP,
801 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_WHEEL,
804 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_DOWN,
807 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_MOVE,
810 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_UP,
813 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_KEY_DOWN,
815 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_KEY_UP,
820 /* START - Event history list handling functions */
823 * This function is used to find if device number
824 * is found in a list of devices.
825 * The list contains devices for refeeding *UP event
827 * @ingroup Elm_Gesture_Layer
830 device_in_pending_list(const void *data1, const void *data2)
831 { /* Compare the two device numbers */
832 return (((intptr_t) data1) - ((intptr_t) data2));
838 * This functions adds device to refeed-pending device list
839 * @ingroup Elm_Gesture_Layer
842 _add_device_pending(Eina_List *list, void *event, Evas_Callback_Type event_type)
844 int device = ELM_MOUSE_DEVICE;
847 case EVAS_CALLBACK_MOUSE_DOWN:
849 case EVAS_CALLBACK_MULTI_DOWN:
850 device = ((Evas_Event_Multi_Down *) event)->device;
856 if (!eina_list_search_unsorted_list(list, device_in_pending_list,
859 return eina_list_append(list, (intptr_t*) device);
868 * This functions returns pending-device node
869 * @ingroup Elm_Gesture_Layer
872 _device_is_pending(Eina_List *list, void *event, Evas_Callback_Type event_type)
874 int device = ELM_MOUSE_DEVICE;
877 case EVAS_CALLBACK_MOUSE_UP:
879 case EVAS_CALLBACK_MULTI_UP:
880 device = ((Evas_Event_Multi_Up *) event)->device;
886 return eina_list_search_unsorted_list(list, device_in_pending_list,
887 (intptr_t *) device);
893 * This function reports ABORT to all none-detected gestures
894 * Then resets test bits for all desired gesures
895 * and clears input-events history.
896 * note: if no gesture was detected, events from history list
897 * are streamed to the widget because it's unused by layer.
898 * user may cancel refeed of events by setting repeat events.
900 * @param obj The gesture-layer object.
902 * @ingroup Elm_Gesture_Layer
905 _event_history_clear(Evas_Object *obj)
907 Widget_Data *wd = elm_widget_data_get(obj);
908 if (!wd) return EINA_FALSE;
912 Evas *e = evas_object_evas_get(obj);
913 Eina_Bool gesture_found = EINA_FALSE;
914 for (i = ELM_GESTURE_FIRST ; i < ELM_GESTURE_LAST; i++)
919 if (p->state == ELM_GESTURE_STATE_END)
920 gesture_found = EINA_TRUE;
922 { /* Report ABORT to all gestures that still not finished */
923 _set_state(p, ELM_GESTURE_STATE_ABORT, wd->gesture[i]->info,
929 _reset_states(wd); /* we are ready to start testing for gestures again */
931 /* Clear all gestures intermediate data */
932 if (IS_TESTED(ELM_GESTURE_N_LONG_TAPS))
933 { /* We do not clear a long-tap gesture if fingers still on surface */
934 /* and gesture timer still pending to test gesture state */
935 Long_Tap_Type *st = wd->gesture[ELM_GESTURE_N_LONG_TAPS]->data;
936 if ((st) && /* st not allocated if clear occurs before 1st input */
937 ((!eina_list_count(st->touched)) || (!st->timeout)))
938 _n_long_tap_test_reset(wd->gesture[ELM_GESTURE_N_LONG_TAPS]);
943 ecore_timer_del(wd->dbl_timeout);
944 wd->dbl_timeout = NULL;
947 _tap_gestures_test_reset(wd->gesture[ELM_GESTURE_N_TAPS]);
948 _tap_gestures_test_reset(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
949 _tap_gestures_test_reset(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
950 _momentum_test_reset(wd->gesture[ELM_GESTURE_MOMENTUM]);
951 _line_test_reset(wd->gesture[ELM_GESTURE_N_LINES]);
952 _line_test_reset(wd->gesture[ELM_GESTURE_N_FLICKS]);
953 _zoom_test_reset(wd->gesture[ELM_GESTURE_ZOOM]);
954 _rotate_test_reset(wd->gesture[ELM_GESTURE_ROTATE]);
956 /* Disable gesture layer so refeeded events won't be consumed by it */
957 _unregister_callbacks(obj);
958 while (wd->event_history_list)
961 t = wd->event_history_list;
962 Eina_List *pending = _device_is_pending(wd->pending,
963 wd->event_history_list->event,
964 wd->event_history_list->event_type);
966 /* Refeed events if no gesture matched input */
967 if (pending || ((!gesture_found) && (!wd->repeat_events)))
969 evas_event_refeed_event(e, wd->event_history_list->event,
970 wd->event_history_list->event_type);
974 wd->pending = eina_list_remove_list(wd->pending, pending);
978 wd->pending = _add_device_pending(wd->pending,
979 wd->event_history_list->event,
980 wd->event_history_list->event_type);
984 free(wd->event_history_list->event);
985 wd->event_history_list = (Event_History *) eina_inlist_remove(
986 EINA_INLIST_GET(wd->event_history_list),
987 EINA_INLIST_GET(wd->event_history_list));
990 _register_callbacks(obj);
997 * This function copies input events.
998 * We copy event info before adding it to history.
999 * The memory is freed when we clear history.
1001 * @param event the event to copy
1002 * @param event_type event type to copy
1004 * @ingroup Elm_Gesture_Layer
1007 _copy_event_info(void *event, Evas_Callback_Type event_type)
1011 case EVAS_CALLBACK_MOUSE_DOWN:
1012 return COPY_EVENT_INFO((Evas_Event_Mouse_Down *) event);
1014 case EVAS_CALLBACK_MOUSE_MOVE:
1015 return COPY_EVENT_INFO((Evas_Event_Mouse_Move *) event);
1017 case EVAS_CALLBACK_MOUSE_UP:
1018 return COPY_EVENT_INFO((Evas_Event_Mouse_Up *) event);
1020 case EVAS_CALLBACK_MOUSE_WHEEL:
1021 return COPY_EVENT_INFO((Evas_Event_Mouse_Wheel *) event);
1023 case EVAS_CALLBACK_MULTI_DOWN:
1024 return COPY_EVENT_INFO((Evas_Event_Multi_Down *) event);
1026 case EVAS_CALLBACK_MULTI_MOVE:
1027 return COPY_EVENT_INFO((Evas_Event_Multi_Move *) event);
1029 case EVAS_CALLBACK_MULTI_UP:
1030 return COPY_EVENT_INFO((Evas_Event_Multi_Up *) event);
1032 case EVAS_CALLBACK_KEY_DOWN:
1033 return COPY_EVENT_INFO((Evas_Event_Key_Down *) event);
1035 case EVAS_CALLBACK_KEY_UP:
1036 return COPY_EVENT_INFO((Evas_Event_Key_Up *) event);
1044 _event_history_add(Evas_Object *obj, void *event, Evas_Callback_Type event_type)
1046 Widget_Data *wd = elm_widget_data_get(obj);
1048 if (!wd) return EINA_FALSE;
1050 ev = malloc(sizeof(Event_History));
1051 ev->event = _copy_event_info(event, event_type); /* Freed on event_history_clear */
1052 ev->event_type = event_type;
1053 wd->event_history_list = (Event_History *) eina_inlist_append(
1054 EINA_INLIST_GET(wd->event_history_list), EINA_INLIST_GET(ev));
1058 /* END - Event history list handling functions */
1061 _del_hook(Evas_Object *obj)
1063 Widget_Data *wd = elm_widget_data_get(obj);
1066 _event_history_clear(obj);
1067 eina_list_free(wd->pending);
1069 Pointer_Event *data;
1070 EINA_LIST_FREE(wd->touched, data)
1073 if (!elm_widget_disabled_get(obj))
1074 _unregister_callbacks(obj);
1076 /* Free all gestures internal data structures */
1078 for (i = 0; i < ELM_GESTURE_LAST; i++)
1081 if (wd->gesture[i]->data)
1082 free(wd->gesture[i]->data);
1084 free(wd->gesture[i]);
1091 compare_match_fingers(const void *data1, const void *data2)
1092 { /* Compare coords of first item in list to cur coords */
1093 const Pointer_Event *pe1 = eina_list_data_get(data1);
1094 const Pointer_Event *pe2 = data2;
1096 if (_inside(pe1->x, pe1->y, pe2->x, pe2->y))
1098 else if (pe1->x < pe2->x)
1102 if (pe1->x == pe2->x)
1103 return pe1->y - pe2->y;
1110 compare_pe_device(const void *data1, const void *data2)
1111 { /* Compare device of first item in list to our pe device */
1112 const Pointer_Event *pe1 = eina_list_data_get(data1);
1113 const Pointer_Event *pe2 = data2;
1115 /* Only match if last was a down event */
1116 if ((pe1->event_type != EVAS_CALLBACK_MULTI_DOWN) &&
1117 (pe1->event_type != EVAS_CALLBACK_MOUSE_DOWN))
1121 if (pe1->device == pe2->device)
1123 else if (pe1->device < pe2->device)
1130 _record_pointer_event(Taps_Type *st, Eina_List *pe_list, Pointer_Event *pe,
1131 Widget_Data *wd, void *event_info, Evas_Callback_Type event_type)
1132 { /* Keep copy of pe and record it in list */
1133 Pointer_Event *p = malloc(sizeof(Pointer_Event));
1134 memcpy(p, pe, sizeof(Pointer_Event));
1135 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_NONE);
1141 /* This will also update middle-point to report to user later */
1142 st->info.x = st->sum_x / st->n_taps;
1143 st->info.y = st->sum_y / st->n_taps;
1144 st->info.timestamp = pe->timestamp;
1148 pe_list = eina_list_append(pe_list, p);
1149 st->l = eina_list_append(st->l, pe_list);
1152 pe_list = eina_list_append(pe_list, p);
1160 * This function sets state a tap-gesture to END or ABORT
1162 * @param data gesture info pointer
1164 * @ingroup Elm_Gesture_Layer
1167 _tap_gesture_finish(void *data)
1168 { /* This function will test each tap gesture when timer expires */
1169 Gesture_Info *gesture = data;
1170 Elm_Gesture_State s = ELM_GESTURE_STATE_END;
1171 /* Here we check if taps-gesture was completed successfuly */
1172 /* Count how many taps were recieved on each device then */
1173 /* determine if it matches n_taps_needed defined on START */
1174 Taps_Type *st = gesture->data;
1177 EINA_LIST_FOREACH(st->l, l, pe_list)
1179 if (eina_list_count(pe_list) != st->n_taps_needed)
1180 { /* No match taps number on device, ABORT */
1181 s = ELM_GESTURE_STATE_ABORT;
1186 st->info.n = eina_list_count(st->l);
1187 _set_state(gesture, s, gesture->info, EINA_FALSE);
1188 _tap_gestures_test_reset(gesture);
1194 * when this timer expires we finish tap gestures.
1196 * @param data The gesture-layer object.
1197 * @return cancles callback for this timer.
1199 * @ingroup Elm_Gesture_Layer
1202 _multi_tap_timeout(void *data)
1204 Widget_Data *wd = elm_widget_data_get(data);
1205 if (!wd) return EINA_FALSE;
1207 if (IS_TESTED(ELM_GESTURE_N_TAPS))
1208 _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TAPS]);
1210 if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
1211 _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
1213 if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
1214 _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
1216 _clear_if_finished(data);
1217 wd->dbl_timeout = NULL;
1218 return ECORE_CALLBACK_CANCEL;
1224 * when this timer expires we START long tap gesture
1226 * @param data The gesture-layer object.
1227 * @return cancles callback for this timer.
1229 * @ingroup Elm_Gesture_Layer
1232 _long_tap_timeout(void *data)
1234 Gesture_Info *gesture = data;
1235 Long_Tap_Type *st = gesture->data;
1238 _set_state(gesture, ELM_GESTURE_STATE_START,
1239 gesture->data, EINA_FALSE);
1241 return ECORE_CALLBACK_CANCEL;
1248 * This function checks if a tap gesture should start
1250 * @param wd Gesture Layer Widget Data.
1251 * @param pe The recent input event as stored in pe struct.
1252 * @param event_info Original input event pointer.
1253 * @param event_type Type of original input event.
1254 * @param gesture what gesture is tested
1255 * @param how many taps for this gesture (1, 2 or 3)
1257 * @return Flag to determine if we need to set a timer for finish
1259 * @ingroup Elm_Gesture_Layer
1262 _tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
1263 void *event_info, Evas_Callback_Type event_type,
1264 Gesture_Info *gesture, int taps)
1265 { /* Here we fill Tap struct */
1266 Taps_Type *st = gesture->data;
1268 { /* Allocated once on first time */
1269 st = calloc(1, sizeof(Taps_Type));
1271 _tap_gestures_test_reset(gesture);
1274 Eina_List *pe_list = NULL;
1275 Pointer_Event *pe_down = NULL;
1276 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1277 switch (pe->event_type)
1279 case EVAS_CALLBACK_MULTI_DOWN:
1280 case EVAS_CALLBACK_MOUSE_DOWN:
1281 /* Check if got tap on same cord was tapped before */
1282 pe_list = eina_list_search_unsorted(st->l, compare_match_fingers, pe);
1285 eina_list_search_unsorted(st->l, compare_pe_device, pe))
1286 { /* This device was touched in other cord before completion */
1287 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1288 &st->info, EINA_FALSE);
1289 consume_event(wd, event_info, event_type, ev_flag);
1294 pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
1295 if ((pe->device == 0) && (eina_list_count(pe_list) == 1))
1296 { /* This is the first mouse down we got */
1297 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
1298 &st->info, EINA_FALSE);
1299 consume_event(wd, event_info, event_type, ev_flag);
1301 st->n_taps_needed = taps * 2; /* count DOWN and UP */
1308 case EVAS_CALLBACK_MULTI_UP:
1309 case EVAS_CALLBACK_MOUSE_UP:
1310 pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
1314 pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
1317 case EVAS_CALLBACK_MULTI_MOVE:
1318 case EVAS_CALLBACK_MOUSE_MOVE:
1319 /* Get first event in first list, this has to be a Mouse Down event */
1320 /* and verify that user didn't move out of this area before next tap */
1321 pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
1324 pe_down = eina_list_data_get(pe_list);
1325 if (!_inside(pe_down->x, pe_down->y, pe->x, pe->y))
1327 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1328 &st->info, EINA_FALSE);
1329 consume_event(wd, event_info, event_type, ev_flag);
1345 * This function checks all click/tap and double/triple taps
1347 * @param obj The gesture-layer object.
1348 * @param pe The recent input event as stored in pe struct.
1349 * @param event_info Original input event pointer.
1350 * @param event_type Type of original input event.
1352 * @ingroup Elm_Gesture_Layer
1355 _tap_gestures_test(Evas_Object *obj, Pointer_Event *pe,
1356 void *event_info, Evas_Callback_Type event_type)
1357 { /* Here we fill Recent_Taps struct and fire-up click/tap timers */
1358 Eina_Bool need_timer = EINA_FALSE;
1359 Widget_Data *wd = elm_widget_data_get(obj);
1362 if (!pe) /* this happens when unhandled event arrived */
1363 return; /* see _make_pointer_event function */
1365 if (IS_TESTED(ELM_GESTURE_N_TAPS))
1366 need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
1367 wd->gesture[ELM_GESTURE_N_TAPS], 1);
1369 if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
1370 need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
1371 wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS], 2);
1373 if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
1374 need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
1375 wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS], 3);
1377 if ((need_timer) && (!wd->dbl_timeout))
1378 { /* Set a timer to finish these gestures */
1379 wd->dbl_timeout = ecore_timer_add(0.4, _multi_tap_timeout,
1387 * This function computes center-point for long-tap gesture
1389 * @param st Long Tap gesture info pointer
1390 * @param pe The recent input event as stored in pe struct.
1392 * @ingroup Elm_Gesture_Layer
1395 _compute_taps_center(Long_Tap_Type *st,
1396 Evas_Coord *x_out, Evas_Coord *y_out, Pointer_Event *pe)
1398 if(!eina_list_count(st->touched))
1403 Evas_Coord x = 0, y = 0;
1404 EINA_LIST_FOREACH(st->touched, l, p)
1405 { /* Accumulate all then take avarage */
1406 if (p->device == pe->device)
1407 { /* This will take care of values coming from MOVE event */
1418 *x_out = x / eina_list_count(st->touched);
1419 *y_out = y / eina_list_count(st->touched);
1425 * This function checks N long-tap gesture.
1427 * @param obj The gesture-layer object.
1428 * @param pe The recent input event as stored in pe struct.
1429 * @param event_info Original input event pointer.
1430 * @param event_type Type of original input event.
1431 * @param g_type what Gesture we are testing.
1432 * @param taps How many click/taps we test for.
1434 * @ingroup Elm_Gesture_Layer
1437 _n_long_tap_test(Evas_Object *obj, Pointer_Event *pe,
1438 void *event_info, Evas_Callback_Type event_type,
1439 Elm_Gesture_Types g_type)
1440 { /* Here we fill Recent_Taps struct and fire-up click/tap timers */
1441 Widget_Data *wd = elm_widget_data_get(obj);
1444 if (!pe) /* this happens when unhandled event arrived */
1445 return; /* see _make_pointer_event function */
1446 Gesture_Info *gesture = wd->gesture[g_type];
1447 if (!gesture) return;
1449 Long_Tap_Type *st = gesture->data;
1451 { /* Allocated once on first time */
1452 st = calloc(1, sizeof(Long_Tap_Type));
1454 _n_long_tap_test_reset(gesture);
1457 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1458 switch (pe->event_type)
1460 case EVAS_CALLBACK_MULTI_DOWN:
1461 case EVAS_CALLBACK_MOUSE_DOWN:
1462 st->touched = _add_touched_device(st->touched, pe);
1463 st->info.n = eina_list_count(st->touched);
1464 if (st->info.n > st->max_touched)
1465 st->max_touched = st->info.n;
1467 { /* User removed finger from touch, then put back - ABORT */
1468 if ((gesture->state == ELM_GESTURE_STATE_START) ||
1469 (gesture->state == ELM_GESTURE_STATE_MOVE))
1471 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_ABORT,
1472 &st->info, EINA_FALSE);
1473 consume_event(wd, event_info, event_type, ev_flag);
1477 if ((pe->device == 0) && (eina_list_count(st->touched) == 1))
1478 { /* This is the first mouse down we got */
1479 st->info.timestamp = pe->timestamp;
1481 /* To test long tap */
1482 /* When this timer expires, gesture STARTED */
1484 st->timeout = ecore_timer_add(wd->long_tap_start_timeout,
1485 _long_tap_timeout, gesture);
1488 consume_event(wd, event_info, event_type, ev_flag);
1489 _compute_taps_center(st, &st->info.x, &st->info.y, pe);
1490 st->center_x = st->info.x;
1491 st->center_y = st->info.y;
1494 case EVAS_CALLBACK_MULTI_UP:
1495 case EVAS_CALLBACK_MOUSE_UP:
1496 st->touched = _remove_touched_device(st->touched, pe);
1497 _compute_taps_center(st, &st->center_x, &st->center_y, pe);
1499 ((gesture->state == ELM_GESTURE_STATE_START) ||
1500 (gesture->state == ELM_GESTURE_STATE_MOVE)))
1501 { /* Report END only for gesture that STARTed */
1502 if (eina_list_count(st->touched) == 0)
1503 { /* Report END only at last release event */
1504 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_END,
1505 &st->info, EINA_FALSE);
1506 consume_event(wd, event_info, event_type, ev_flag);
1510 { /* Stop test, user lifts finger before long-start */
1511 if (st->timeout) ecore_timer_del(st->timeout);
1513 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_ABORT,
1514 &st->info, EINA_FALSE);
1515 consume_event(wd, event_info, event_type, ev_flag);
1520 case EVAS_CALLBACK_MULTI_MOVE:
1521 case EVAS_CALLBACK_MOUSE_MOVE:
1523 ((gesture->state == ELM_GESTURE_STATE_START) ||
1524 (gesture->state == ELM_GESTURE_STATE_MOVE)))
1525 { /* Report MOVE only if STARTED */
1528 Elm_Gesture_State state_to_report = ELM_GESTURE_STATE_MOVE;
1530 _compute_taps_center(st, &x, &y, pe);
1531 /* ABORT if user moved fingers out of tap area */
1532 #if defined(DEBUG_GESTURE_LAYER)
1533 printf("%s x,y=(%d,%d) st->info.x,st->info.y=(%d,%d)\n",__func__,x,y,st->info.x,st->info.y);
1535 if (!_inside(x, y, st->center_x, st->center_y))
1536 state_to_report = ELM_GESTURE_STATE_ABORT;
1538 /* Report MOVE if gesture started */
1539 ev_flag = _set_state(gesture, state_to_report,
1540 &st->info, EINA_TRUE);
1541 consume_event(wd, event_info, event_type, ev_flag);
1553 * This function computes momentum for MOMENTUM, LINE and FLICK gestures
1554 * This momentum value will be sent to widget when gesture is completed.
1556 * @param momentum pointer to buffer where we record momentum value.
1557 * @param x1 x coord where user started gesture.
1558 * @param y1 y coord where user started gesture.
1559 * @param x2 x coord where user completed gesture.
1560 * @param y2 y coord where user completed gesture.
1561 * @param t1x timestamp for X, when user started gesture.
1562 * @param t1y timestamp for Y, when user started gesture.
1563 * @param t2 timestamp when user completed gesture.
1565 * @ingroup Elm_Gesture_Layer
1568 _set_momentum(Elm_Gesture_Momentum_Info *momentum, Evas_Coord x1, Evas_Coord y1,
1569 Evas_Coord x2, Evas_Coord y2, unsigned int t1x, unsigned int t1y,
1572 Evas_Coord velx = 0, vely = 0, vel;
1573 Evas_Coord dx = x2 - x1;
1574 Evas_Coord dy = y2 - y1;
1578 velx = (dx * 1000) / dtx;
1581 vely = (dy * 1000) / dty;
1583 vel = sqrt((velx * velx) + (vely * vely));
1585 if ((_elm_config->thumbscroll_friction > 0.0) &&
1586 (vel > _elm_config->thumbscroll_momentum_threshold))
1587 { /* report momentum */
1588 momentum->mx = velx;
1589 momentum->my = vely;
1601 * This function is used for computing rotation angle (DEG).
1603 * @param x1 first finger x location.
1604 * @param y1 first finger y location.
1605 * @param x2 second finger x location.
1606 * @param y2 second finger y location.
1608 * @return angle of the line between (x1,y1), (x2,y2) in Deg.
1609 * Angles now are given in DEG, not RAD.
1610 * ZERO angle at 12-oclock, growing clockwise.
1612 * @ingroup Elm_Gesture_Layer
1615 get_angle(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
1617 double a, xx, yy, rt = (-1);
1621 if (((int) xx) && ((int) yy))
1623 rt = a = RAD2DEG(atan(yy / xx));
1649 { /* Do this only if rt is not set */
1651 { /* Horizontal line */
1662 { /* Vertical line */
1674 /* Now we want to change from:
1676 * original circle 180 0 We want: 270 90
1690 * This function is used for computing the magnitude and direction
1691 * of vector between two points.
1693 * @param x1 first finger x location.
1694 * @param y1 first finger y location.
1695 * @param x2 second finger x location.
1696 * @param y2 second finger y location.
1697 * @param l length computed (output)
1698 * @param a angle computed (output)
1700 * @ingroup Elm_Gesture_Layer
1703 get_vector(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2,
1704 Evas_Coord *l, double *a)
1709 *l = (Evas_Coord) sqrt(xx*xx + yy*yy);
1710 *a = get_angle(x1, y1, x2, y2);
1714 _get_direction(Evas_Coord x1, Evas_Coord x2)
1727 * This function tests momentum gesture.
1728 * @param obj The gesture-layer object.
1729 * @param pe The recent input event as stored in pe struct.
1730 * @param event_info recent input event.
1731 * @param event_type recent event type.
1732 * @param g_type what Gesture we are testing.
1734 * @ingroup Elm_Gesture_Layer
1737 _momentum_test(Evas_Object *obj, Pointer_Event *pe,
1738 void *event_info, Evas_Callback_Type event_type,
1739 Elm_Gesture_Types g_type)
1741 Widget_Data *wd = elm_widget_data_get(obj);
1743 Gesture_Info *gesture = wd->gesture[g_type];
1744 if (!gesture ) return;
1746 /* When continues enable = TRUE a gesture may START on MOVE event */
1747 /* We don't allow this to happen with the if-statement below. */
1748 /* When continues enable = FALSE a gesture may START on DOWN only */
1749 /* Therefor it would NOT start on MOVE event. */
1750 /* NOTE that touched list is updated AFTER this function returns */
1751 /* so (count == 0) when we get here on first touch on surface. */
1752 if ((wd->glayer_continues_enable) && (!eina_list_count(wd->touched)))
1753 return; /* Got move on mouse-over move */
1755 Momentum_Type *st = gesture->data;
1756 Elm_Gesture_State state_to_report = ELM_GESTURE_STATE_MOVE;
1758 { /* Allocated once on first time */
1759 st = calloc(1, sizeof(Momentum_Type));
1761 _momentum_test_reset(gesture);
1767 /* First make avarage of all touched devices to determine center point */
1770 Pointer_Event pe_local = *pe; /* Copy pe event info to local */
1771 unsigned int cnt = 1; /* We start counter counting current pe event */
1772 EINA_LIST_FOREACH(wd->touched, l, p)
1773 if (p->device != pe_local.device)
1781 /* Compute avarage to get center point */
1785 /* If user added finger - reset gesture */
1786 if ((st->info.n) && (st->info.n < cnt))
1787 state_to_report = ELM_GESTURE_STATE_ABORT;
1789 if (st->info.n < cnt)
1792 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1795 case EVAS_CALLBACK_MOUSE_DOWN:
1796 case EVAS_CALLBACK_MULTI_DOWN:
1797 case EVAS_CALLBACK_MOUSE_MOVE:
1798 case EVAS_CALLBACK_MULTI_MOVE:
1801 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
1802 (event_type == EVAS_CALLBACK_MULTI_DOWN) ||
1803 (wd->glayer_continues_enable)) /* start also on MOVE */
1804 { /* We start on MOVE when cont-enabled only */
1805 st->line_st.x = st->line_end.x = pe_local.x;
1806 st->line_st.y = st->line_end.y = pe_local.y;
1807 st->t_st_x = st->t_st_y = st->t_end = pe_local.timestamp;
1808 st->xdir = st->ydir = 0;
1809 st->info.x2 = st->info.x1 = pe_local.x;
1810 st->info.y2 = st->info.y1 = pe_local.y;
1811 st->info.tx = st->info.ty = pe_local.timestamp;
1812 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
1813 &st->info, EINA_FALSE);
1814 consume_event(wd, event_info, event_type, ev_flag);
1821 /* ABORT gesture if got DOWN or MOVE event after UP+timeout */
1823 ((st->t_up + ELM_GESTURE_MULTI_TIMEOUT) < pe_local.timestamp))
1824 state_to_report = ELM_GESTURE_STATE_ABORT;
1826 if ((pe_local.timestamp - ELM_GESTURE_MOMENTUM_TIMEOUT) > st->t_end)
1827 { /* Too long of a wait, reset all values */
1828 st->line_st.x = pe_local.x;
1829 st->line_st.y = pe_local.y;
1830 st->t_st_y = st->t_st_x = pe_local.timestamp;
1831 st->info.tx = st->t_st_x;
1832 st->info.ty = st->t_st_y;
1833 st->xdir = st->ydir = 0;
1838 xdir = _get_direction(st->line_end.x, pe_local.x);
1839 ydir = _get_direction(st->line_end.y, pe_local.y);
1840 if (xdir != st->xdir)
1842 st->line_st.x = st->line_end.x;
1843 st->info.tx = st->t_st_x = st->t_end;
1847 if (ydir != st->ydir)
1849 st->line_st.y = st->line_end.y;
1850 st->info.ty = st->t_st_y = st->t_end;
1855 st->info.x2 = st->line_end.x = pe_local.x;
1856 st->info.y2 = st->line_end.y = pe_local.y;
1857 st->t_end = pe_local.timestamp;
1858 _set_momentum(&st->info, st->line_st.x, st->line_st.y, pe_local.x, pe_local.y,
1859 st->t_st_x, st->t_st_y, pe_local.timestamp);
1860 ev_flag = _set_state(gesture, state_to_report, &st->info,
1862 consume_event(wd, event_info, event_type, ev_flag);
1866 case EVAS_CALLBACK_MOUSE_UP:
1867 case EVAS_CALLBACK_MULTI_UP:
1868 st->t_up = pe_local.timestamp; /* Record recent up event time */
1869 if ((cnt > 1) || /* Ignore if more fingers touch surface */
1870 (!st->t_st_x)) /* IGNORE if info was cleared, long press,move */
1873 if ((pe_local.timestamp - ELM_GESTURE_MOMENTUM_TIMEOUT) > st->t_end)
1874 { /* Too long of a wait, reset all values */
1875 st->line_st.x = pe_local.x;
1876 st->line_st.y = pe_local.y;
1877 st->t_st_y = st->t_st_x = pe_local.timestamp;
1878 st->xdir = st->ydir = 0;
1881 st->info.x2 = pe_local.x;
1882 st->info.y2 = pe_local.y;
1883 st->line_end.x = pe_local.x;
1884 st->line_end.y = pe_local.y;
1885 st->t_end = pe_local.timestamp;
1887 _set_momentum(&st->info, st->line_st.x, st->line_st.y, pe_local.x, pe_local.y,
1888 st->t_st_x, st->t_st_y, pe_local.timestamp);
1890 if ((fabs(st->info.mx) > ELM_GESTURE_MINIMUM_MOMENTUM) ||
1891 (fabs(st->info.my) > ELM_GESTURE_MINIMUM_MOMENTUM))
1892 state_to_report = ELM_GESTURE_STATE_END;
1894 state_to_report = ELM_GESTURE_STATE_ABORT;
1896 ev_flag = _set_state(gesture, state_to_report, &st->info,
1898 consume_event(wd, event_info, event_type, ev_flag);
1907 compare_line_device(const void *data1, const void *data2)
1908 { /* Compare device component of line struct */
1909 const Line_Data *ln1 = data1;
1910 const int *device = data2;
1912 if (ln1->t_st) /* Compare only with lines that started */
1913 return (ln1->device - (*device));
1921 * This function construct line struct from input.
1922 * @param info pointer to store line momentum.
1923 * @param st line info to store input data.
1924 * @param pe The recent input event as stored in pe struct.
1926 * @ingroup Elm_Gesture_Layer
1929 _single_line_process(Elm_Gesture_Line_Info *info, Line_Data *st,
1930 Pointer_Event *pe, Evas_Callback_Type event_type)
1931 { /* Record events and set momentum for line pointed by st */
1937 case EVAS_CALLBACK_MOUSE_DOWN:
1938 case EVAS_CALLBACK_MOUSE_MOVE:
1939 case EVAS_CALLBACK_MULTI_DOWN:
1940 case EVAS_CALLBACK_MULTI_MOVE:
1942 { /* This happens only when line starts */
1943 st->line_st.x = pe->x;
1944 st->line_st.y = pe->y;
1945 st->t_st = pe->timestamp;
1946 st->device = pe->device;
1947 info->momentum.x1 = pe->x;
1948 info->momentum.y1 = pe->y;
1949 info->momentum.tx = pe->timestamp;
1950 info->momentum.ty = pe->timestamp;
1957 case EVAS_CALLBACK_MOUSE_UP:
1958 case EVAS_CALLBACK_MULTI_UP:
1959 /* IGNORE if line info was cleared, like long press, move */
1963 st->line_end.x = pe->x;
1964 st->line_end.y = pe->y;
1965 st->t_end = pe->timestamp;
1974 _line_data_reset(st);
1978 info->momentum.x2 = pe->x;
1979 info->momentum.y2 = pe->y;
1980 _set_momentum(&info->momentum, st->line_st.x, st->line_st.y, pe->x, pe->y,
1981 st->t_st, st->t_st, pe->timestamp);
1989 * This function test for (n) line gesture.
1990 * @param obj The gesture-layer object.
1991 * @param pe The recent input event as stored in pe struct.
1992 * @param event_info Original input event pointer.
1993 * @param event_type Type of original input event.
1994 * @param g_type what Gesture we are testing.
1996 * @ingroup Elm_Gesture_Layer
1999 _n_line_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2000 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2004 Widget_Data *wd = elm_widget_data_get(obj);
2006 Gesture_Info *gesture = wd->gesture[g_type];
2007 if (!gesture ) return;
2009 /* When continues enable = TRUE a gesture may START on MOVE event */
2010 /* We don't allow this to happen with the if-statement below. */
2011 /* When continues enable = FALSE a gesture may START on DOWN only */
2012 /* Therefor it would NOT start on MOVE event. */
2013 /* NOTE that touched list is updated AFTER this function returns */
2014 /* so (count == 0) when we get here on first touch on surface. */
2015 if ((wd->glayer_continues_enable) && (!eina_list_count(wd->touched)))
2016 return; /* Got move on mouse-over move */
2018 Line_Type *st = gesture->data;
2021 st = calloc(1, sizeof(Line_Type));
2025 Line_Data *line = NULL;
2026 Eina_List *list = st->list;
2027 unsigned cnt = eina_list_count(list);
2030 { /* list is not empty, locate this device on list */
2031 line = (Line_Data *) eina_list_search_unsorted(st->list,
2032 compare_line_device, &pe->device);
2036 { /* List is empty or device not found, new line-struct on START only */
2037 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
2038 (event_type == EVAS_CALLBACK_MULTI_DOWN) ||
2039 ((wd->glayer_continues_enable) && /* START on MOVE also */
2040 ((event_type == EVAS_CALLBACK_MOUSE_MOVE) ||
2041 (event_type == EVAS_CALLBACK_MULTI_MOVE))))
2042 { /* Allocate new item on START only */
2043 line = calloc(1, sizeof(Line_Data));
2044 _line_data_reset(line);
2045 list = eina_list_append(list, line);
2050 if (!line) /* This may happen on MOVE that comes before DOWN */
2051 return; /* No line-struct to work with, can't continue testing */
2053 if (_single_line_process(&st->info, line, pe, event_type)) /* update st with input */
2054 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_NONE);
2056 /* Get direction and magnitude of the line */
2058 get_vector(line->line_st.x, line->line_st.y, pe->x, pe->y,
2059 &line->line_length, &angle);
2061 /* These are used later to compare lines length */
2062 Evas_Coord shortest_line_len = line->line_length;
2063 Evas_Coord longest_line_len = line->line_length;
2064 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2066 /* Now update line-state */
2068 { /* Analyze line only if line started */
2069 if (line->line_angle >= 0.0)
2070 { /* if line direction was set, we test if broke tolerance */
2071 double a = fabs(angle - line->line_angle);
2073 double d = (tan(DEG2RAD(a))) * line->line_length; /* Distance from line */
2074 #if defined(DEBUG_GESTURE_LAYER)
2075 printf("%s a=<%f> d=<%f>\n", __func__, a, d);
2077 if ((d > wd->line_distance_tolerance) || (a > wd->line_angular_tolerance))
2078 { /* Broke tolerance: abort line and start a new one */
2079 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2080 &st->info, EINA_FALSE);
2081 consume_event(wd, event_info, event_type, ev_flag);
2085 if (wd->glayer_continues_enable)
2086 { /* We may finish line if momentum is zero */
2087 /* This is for continues-gesture */
2088 if ((!st->info.momentum.mx) && (!st->info.momentum.my))
2089 { /* Finish line on zero momentum for continues gesture */
2090 line->line_end.x = pe->x;
2091 line->line_end.y = pe->y;
2092 line->t_end = pe->timestamp;
2097 { /* Record the line angle as it broke minimum length for line */
2098 if (line->line_length >= wd->line_min_length)
2099 st->info.angle = line->line_angle = angle;
2105 if (line->line_angle < 0.0)
2106 { /* it's not a line, too short more close to a tap */
2107 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2108 &st->info, EINA_FALSE);
2109 consume_event(wd, event_info, event_type, ev_flag);
2115 /* Count how many lines already started / ended */
2118 unsigned int tm_start = pe->timestamp;
2119 unsigned int tm_end = pe->timestamp;
2122 double base_angle = ELM_GESTURE_NEGATIVE_ANGLE;
2123 Eina_Bool lines_parallel = EINA_TRUE;
2124 EINA_LIST_FOREACH(list, l, t_line)
2127 base_angle = t_line->line_angle;
2130 if (t_line->line_angle >= 0)
2131 { /* Compare angle only with lines with direction defined */
2132 if (fabs(base_angle - t_line->line_angle) >
2133 wd->line_angular_tolerance)
2134 lines_parallel = EINA_FALSE;
2138 if (t_line->line_length)
2139 { /* update only if this line is used */
2140 if (shortest_line_len > t_line->line_length)
2141 shortest_line_len = t_line->line_length;
2143 if (longest_line_len < t_line->line_length)
2144 longest_line_len = t_line->line_length;
2150 if (t_line->t_st < tm_start)
2151 tm_start = t_line->t_st;
2157 if (t_line->t_end < tm_end)
2158 tm_end = t_line->t_end;
2162 st->info.momentum.n = started;
2166 ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
2167 (event_type == EVAS_CALLBACK_MULTI_DOWN)))
2168 { /* user lift one finger then starts again without line-end - ABORT */
2169 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2171 consume_event(wd, event_info, event_type, ev_flag);
2175 if (!lines_parallel)
2176 { /* Lines are NOT at same direction, abort this gesture */
2177 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2179 consume_event(wd, event_info, event_type, ev_flag);
2184 /* We report ABORT if lines length are NOT matching when fingers are up */
2185 if ((longest_line_len - shortest_line_len) > (elm_finger_size_get()*2))
2187 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2189 consume_event(wd, event_info, event_type, ev_flag);
2193 if ((g_type == ELM_GESTURE_N_FLICKS) && ((tm_end - tm_start) > wd->flick_time_limit_ms))
2194 { /* We consider FLICK as a fast line.ABORT if take too long to finish */
2195 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2197 consume_event(wd, event_info, event_type, ev_flag);
2203 case EVAS_CALLBACK_MOUSE_UP:
2204 case EVAS_CALLBACK_MULTI_UP:
2205 if ((started) && (started == ended))
2207 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2208 &st->info, EINA_FALSE);
2209 consume_event(wd, event_info, event_type, ev_flag);
2214 case EVAS_CALLBACK_MOUSE_DOWN:
2215 case EVAS_CALLBACK_MULTI_DOWN:
2216 case EVAS_CALLBACK_MOUSE_MOVE:
2217 case EVAS_CALLBACK_MULTI_MOVE:
2220 if (wd->glayer_continues_enable && (started == ended))
2221 { /* For continues gesture */
2222 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2223 &st->info, EINA_FALSE);
2224 consume_event(wd, event_info, event_type, ev_flag);
2227 { /* When continues, may START on MOVE event too */
2228 Elm_Gesture_State s = ELM_GESTURE_STATE_MOVE;
2230 /* This happens when: on n > 1 lines then one finger up */
2231 /* caused abort, then put finger down. */
2232 /* This will stop line from starting again. */
2233 /* Number of lines, MUST match touched-device in list */
2234 if ((!wd->glayer_continues_enable) &&
2235 (eina_list_count(st->list) < eina_list_count(wd->touched)))
2236 s = ELM_GESTURE_STATE_ABORT;
2238 if (gesture->state == ELM_GESTURE_STATE_UNDEFINED)
2239 s = ELM_GESTURE_STATE_START;
2241 ev_flag = _set_state(gesture, s, &st->info, EINA_TRUE);
2242 consume_event(wd, event_info, event_type, ev_flag);
2248 return; /* Unhandeld event type */
2255 * This function is used to check if rotation gesture started.
2256 * @param st Contains current rotation values from user input.
2257 * @return TRUE/FALSE if we need to set rotation START.
2259 * @ingroup Elm_Gesture_Layer
2262 rotation_broke_tolerance(Rotate_Type *st)
2264 if (st->info.base_angle < 0)
2265 return EINA_FALSE; /* Angle has to be computed first */
2267 if (st->rotate_angular_tolerance < 0)
2270 double low = st->info.base_angle - st->rotate_angular_tolerance;
2271 double high = st->info.base_angle + st->rotate_angular_tolerance;
2272 double t = st->info.angle;
2296 #if defined(DEBUG_GESTURE_LAYER)
2297 printf("%s angle=<%f> low=<%f> high=<%f>\n", __func__, t, low, high);
2299 if ((t < low) || (t > high))
2300 { /* This marks that roation action has started */
2301 st->rotate_angular_tolerance = ELM_GESTURE_NEGATIVE_ANGLE;
2302 st->info.base_angle = st->info.angle; /* Avoid jump in angle value */
2312 * This function is used for computing the gap between fingers.
2313 * It returns the length and center point between fingers.
2315 * @param x1 first finger x location.
2316 * @param y1 first finger y location.
2317 * @param x2 second finger x location.
2318 * @param y2 second finger y location.
2319 * @param x Gets center point x cord (output)
2320 * @param y Gets center point y cord (output)
2322 * @return length of the line between (x1,y1), (x2,y2) in pixels.
2324 * @ingroup Elm_Gesture_Layer
2327 get_finger_gap_length(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2,
2328 Evas_Coord y2, Evas_Coord *x, Evas_Coord *y)
2330 double a, b, xx, yy, gap;
2333 gap = sqrt(xx*xx + yy*yy);
2335 /* START - Compute zoom center point */
2336 /* The triangle defined as follows:
2344 * http://en.wikipedia.org/wiki/Trigonometric_functions
2345 *************************************/
2346 if (((int) xx) && ((int) yy))
2348 double A = atan((yy / xx));
2349 #if defined(DEBUG_GESTURE_LAYER)
2350 printf("xx=<%f> yy=<%f> A=<%f>\n", xx, yy, A);
2352 a = (Evas_Coord) ((gap / 2) * sin(A));
2353 b = (Evas_Coord) ((gap / 2) * cos(A));
2354 *x = (Evas_Coord) ((x2 > x1) ? (x1 + b) : (x2 + b));
2355 *y = (Evas_Coord) ((y2 > y1) ? (y1 + a) : (y2 + a));
2360 { /* horiz line, take half width */
2361 #if defined(DEBUG_GESTURE_LAYER)
2362 printf("==== HORIZ ====\n");
2364 *x = (Evas_Coord) (xx / 2);
2365 *y = (Evas_Coord) (y1);
2369 { /* vert line, take half width */
2370 #if defined(DEBUG_GESTURE_LAYER)
2371 printf("==== VERT ====\n");
2373 *x = (Evas_Coord) (x1);
2374 *y = (Evas_Coord) (yy / 2);
2377 /* END - Compute zoom center point */
2379 return (Evas_Coord) gap;
2385 * This function is used for computing zoom value.
2387 * @param st Pointer to zoom data based on user input.
2388 * @param tm_end Recent input event timestamp.
2389 * @param zoom_val Current computed zoom value.
2391 * @return zoom momentum
2393 * @ingroup Elm_Gesture_Layer
2396 _zoom_momentum_get(Zoom_Type *st, unsigned int tm_end, double zoom_val)
2398 unsigned int tm_total;
2401 { /* if direction was already defined, check if changed */
2402 if (((st->dir < 0) && (zoom_val > st->info.zoom)) ||
2403 ((st->dir > 0) && (zoom_val < st->info.zoom)))
2404 { /* Direction changed, reset momentum */
2406 st->dir = (-st->dir);
2410 st->dir = (zoom_val > st->info.zoom) ? 1 : -1; /* init */
2414 st->m_st_tm = tm_end;
2415 st->m_base = zoom_val;
2418 tm_total = tm_end - st->m_st_tm;
2421 return (((zoom_val / st->m_base) - 1.0) * 1000) / tm_total;
2429 * This function is used for computing zoom value.
2431 * @param st Pointer to zoom data based on user input.
2432 * @param x1 first finger x location.
2433 * @param y1 first finger y location.
2434 * @param x2 second finger x location.
2435 * @param y2 second finger y location.
2436 * @param factor zoom-factor, used to determine how fast zoom works.
2438 * @return zoom value, when 1.0 means no zoom, 0.5 half size...
2440 * @ingroup Elm_Gesture_Layer
2443 compute_zoom(Zoom_Type *st, Evas_Coord x1, Evas_Coord y1,
2444 Evas_Coord x2, Evas_Coord y2, double zoom_finger_factor)
2447 unsigned int tm_end = (st->zoom_mv.timestamp > st->zoom_mv1.timestamp) ?
2448 st->zoom_mv.timestamp : st->zoom_mv1.timestamp;
2450 Evas_Coord diam = get_finger_gap_length(x1, y1, x2, y2,
2451 &st->info.x, &st->info.y);
2453 st->info.radius = diam / 2;
2457 st->zoom_base = diam;
2458 return st->info.zoom;
2461 if (st->zoom_distance_tolerance)
2462 { /* zoom tolerance <> ZERO, means zoom action NOT started yet */
2463 if (diam < (st->zoom_base - st->zoom_distance_tolerance))
2464 { /* avoid jump with zoom value when break tolerance */
2465 st->zoom_base -= st->zoom_distance_tolerance;
2466 st->zoom_distance_tolerance = 0;
2469 if (diam > (st->zoom_base + st->zoom_distance_tolerance))
2470 { /* avoid jump with zoom value when break tolerance */
2471 st->zoom_base += st->zoom_distance_tolerance;
2472 st->zoom_distance_tolerance = 0;
2478 /* We use factor only on the difference between gap-base */
2479 /* if gap=120, base=100, we get ((120-100)/100)=0.2*factor */
2480 rt = ((1.0) + ((((float) diam - (float) st->zoom_base) /
2481 (float) st->zoom_base) * zoom_finger_factor));
2483 /* Momentum: zoom per second: */
2484 st->info.momentum = _zoom_momentum_get(st, tm_end, rt);
2492 * This function handles zoom with mouse wheel.
2493 * thats a combination of wheel + CTRL key.
2494 * @param obj The gesture-layer object.
2495 * @param event_info Original input event pointer.
2496 * @param event_type Type of original input event.
2497 * @param g_type what Gesture we are testing.
2499 * @ingroup Elm_Gesture_Layer
2502 _zoom_with_wheel_test(Evas_Object *obj, void *event_info,
2503 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2505 Widget_Data *wd = elm_widget_data_get(obj);
2507 if (!wd->gesture[g_type]) return;
2509 Gesture_Info *gesture_zoom = wd->gesture[g_type];
2510 Zoom_Type *st = gesture_zoom->data;
2511 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2513 { /* Allocated once on first time, used for zoom intermediate data */
2514 st = calloc(1, sizeof(Zoom_Type));
2515 gesture_zoom->data = st;
2516 _zoom_test_reset(gesture_zoom);
2521 case EVAS_CALLBACK_KEY_UP:
2523 Evas_Event_Key_Up *p = event_info;
2524 if ((!strcmp(p->keyname, "Control_L")) ||
2525 (!strcmp(p->keyname, "Control_R")))
2526 { /* Test if we ended a zoom gesture when releasing CTRL */
2527 if ((st->zoom_wheel) &&
2528 ((gesture_zoom->state == ELM_GESTURE_STATE_START) ||
2529 (gesture_zoom->state == ELM_GESTURE_STATE_MOVE)))
2530 { /* User released CTRL after zooming */
2531 st->info.momentum = _zoom_momentum_get(st,
2532 p->timestamp, st->info.zoom);
2534 ev_flag = _set_state(gesture_zoom,
2535 ELM_GESTURE_STATE_END, &st->info, EINA_FALSE);
2536 consume_event(wd, event_info, event_type, ev_flag);
2544 case EVAS_CALLBACK_MOUSE_WHEEL:
2547 Elm_Gesture_State s;
2548 if (!evas_key_modifier_is_set(
2549 ((Evas_Event_Mouse_Wheel *) event_info)->modifiers,
2551 { /* if using wheel witout CTRL after starting zoom */
2552 if ((st->zoom_wheel) &&
2553 ((gesture_zoom->state == ELM_GESTURE_STATE_START) ||
2554 (gesture_zoom->state == ELM_GESTURE_STATE_MOVE)))
2556 ev_flag = _set_state(gesture_zoom,
2557 ELM_GESTURE_STATE_END, &st->info, EINA_FALSE);
2558 consume_event(wd, event_info, event_type, ev_flag);
2563 return; /* Ignore mouse-wheel without control */
2566 /* Using mouse wheel with CTRL for zoom */
2567 if (st->zoom_wheel || (st->zoom_distance_tolerance == 0))
2568 { /* (zoom_wheel == NULL) and (zoom_distance_tolerance == 0)
2569 we continue a zoom gesture */
2571 s = ELM_GESTURE_STATE_MOVE;
2574 { /* On first wheel event, report START */
2575 Evas_Modifier_Mask mask = evas_key_modifier_mask_get(
2576 evas_object_evas_get(wd->target), "Control");
2578 s = ELM_GESTURE_STATE_START;
2579 if (!evas_object_key_grab(wd->target, "Control_L", mask, 0, EINA_FALSE))
2580 ERR("Failed to Grabbed CTRL_L");
2581 if (!evas_object_key_grab(wd->target, "Control_R", mask, 0, EINA_FALSE))
2582 ERR("Failed to Grabbed CTRL_R");
2585 st->zoom_distance_tolerance = 0; /* Cancel tolerance */
2586 st->zoom_wheel = (Evas_Event_Mouse_Wheel *) event_info;
2587 st->info.x = st->zoom_wheel->canvas.x;
2588 st->info.y = st->zoom_wheel->canvas.y;
2590 if (st->zoom_wheel->z < 0) /* zoom in */
2591 st->info.zoom += (wd->zoom_finger_factor * wd->zoom_wheel_factor);
2593 if (st->zoom_wheel->z > 0) /* zoom out */
2594 st->info.zoom -= (wd->zoom_finger_factor * wd->zoom_wheel_factor);
2596 if (st->info.zoom < 0.0)
2597 st->info.zoom = 0.0;
2599 st->info.momentum = _zoom_momentum_get(st,
2600 st->zoom_wheel->timestamp, st->info.zoom);
2602 ev_flag = _set_state(gesture_zoom, s, &st->info, force);
2603 consume_event(wd, event_info, event_type, ev_flag);
2615 * This function is used to test zoom gesture.
2616 * user may combine zoom, rotation together.
2617 * so its possible that both will be detected from input.
2618 * (both are two-finger movement-oriented gestures)
2620 * @param obj The gesture-layer object.
2621 * @param event_info Pointer to recent input event.
2622 * @param event_type Recent input event type.
2623 * @param g_type what Gesture we are testing.
2625 * @ingroup Elm_Gesture_Layer
2628 _zoom_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2629 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2633 Widget_Data *wd = elm_widget_data_get(obj);
2635 if (!wd->gesture[g_type]) return;
2637 Gesture_Info *gesture_zoom = wd->gesture[g_type];
2638 Zoom_Type *st = gesture_zoom->data;
2641 { /* Allocated once on first time, used for zoom data */
2642 st = calloc(1, sizeof(Zoom_Type));
2643 gesture_zoom->data = st;
2644 _zoom_test_reset(gesture_zoom);
2648 /* Start - new zoom testing, letting all fingers start */
2649 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2652 case EVAS_CALLBACK_MOUSE_MOVE:
2653 case EVAS_CALLBACK_MULTI_MOVE:
2654 /* if non-continues mode and gesture NOT started, ignore MOVE */
2655 if ((!wd->glayer_continues_enable) &&
2656 (!st->zoom_st.timestamp))
2659 case EVAS_CALLBACK_MOUSE_DOWN:
2660 case EVAS_CALLBACK_MULTI_DOWN:
2661 { /* Here we take care of zoom-start and zoom move */
2665 if(eina_list_count(wd->touched) > 2)
2666 { /* Process zoom only when 2 fingers on surface */
2667 ev_flag = _set_state(gesture_zoom,
2668 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2669 consume_event(wd, event_info, event_type, ev_flag);
2674 if (!st->zoom_st.timestamp)
2675 { /* Now scan touched-devices list and find other finger */
2676 EINA_LIST_FOREACH(wd->touched, l, p)
2677 { /* Device of other finger <> pe device */
2678 if (p->device != pe->device)
2682 if (!p) /* Single finger on touch */
2685 /* Record down fingers */
2686 consume_event(wd, event_info, event_type, ev_flag);
2687 memcpy(&st->zoom_st, pe, sizeof(Pointer_Event));
2688 memcpy(&st->zoom_st1, p, sizeof(Pointer_Event));
2690 /* Set mv field as well to be ready for MOVE events */
2691 memcpy(&st->zoom_mv, pe, sizeof(Pointer_Event));
2692 memcpy(&st->zoom_mv1, p, sizeof(Pointer_Event));
2694 /* Here we have zoom_st, zoom_st1 set, report START */
2695 /* Set zoom-base after BOTH down events recorded */
2696 /* Compute length of line between fingers zoom start */
2697 st->info.zoom = 1.0;
2698 st->zoom_base = get_finger_gap_length(st->zoom_st1.x,
2699 st->zoom_st1.y, st->zoom_st.x, st->zoom_st.y,
2700 &st->info.x, &st->info.y);
2702 st->info.radius = st->zoom_base / 2;
2704 if ((gesture_zoom->state != ELM_GESTURE_STATE_START) &&
2705 (gesture_zoom->state != ELM_GESTURE_STATE_MOVE))
2706 { /* zoom started with mouse-wheel, don't report twice */
2707 ev_flag = _set_state(gesture_zoom,
2708 ELM_GESTURE_STATE_START, &st->info, EINA_FALSE);
2709 consume_event(wd, event_info, event_type, ev_flag);
2712 return; /* Zoom started */
2713 } /* End of ZOOM_START handling */
2716 /* if we got here, we have (exacally) two fingers on surfce */
2717 /* we also after START, report MOVE */
2718 /* First detect which finger moved */
2719 if (pe->device == st->zoom_mv.device)
2720 memcpy(&st->zoom_mv, pe, sizeof(Pointer_Event));
2721 else if (pe->device == st->zoom_mv1.device)
2722 memcpy(&st->zoom_mv1, pe, sizeof(Pointer_Event));
2724 /* Compute change in zoom as fingers move */
2725 st->info.zoom = compute_zoom(st,
2726 st->zoom_mv.x, st->zoom_mv.y,
2727 st->zoom_mv1.x, st->zoom_mv1.y,
2728 wd->zoom_finger_factor);
2730 if (!st->zoom_distance_tolerance)
2731 { /* Zoom broke tolerance, report move */
2732 double d = st->info.zoom - st->next_step;
2736 if (d >= wd->zoom_step)
2737 { /* Report move in steps */
2738 st->next_step = st->info.zoom;
2740 ev_flag = _set_state(gesture_zoom,
2741 ELM_GESTURE_STATE_MOVE,
2742 &st->info, EINA_TRUE);
2743 consume_event(wd, event_info, event_type, ev_flag);
2745 } /* End of ZOOM_MOVE handling */
2750 case EVAS_CALLBACK_MOUSE_UP:
2751 case EVAS_CALLBACK_MULTI_UP:
2752 /* Reset timestamp of finger-up.This is used later
2753 by _zoom_test_reset() to retain finger-down data */
2754 consume_event(wd, event_info, event_type, ev_flag);
2755 if (((st->zoom_wheel) || (st->zoom_base)) &&
2756 (st->zoom_distance_tolerance == 0))
2758 ev_flag = _set_state(gesture_zoom, ELM_GESTURE_STATE_END,
2759 &st->info, EINA_FALSE);
2760 consume_event(wd, event_info, event_type, ev_flag);
2765 /* if we got here not a ZOOM */
2766 if (gesture_zoom->state != ELM_GESTURE_STATE_UNDEFINED)
2767 { /* Must be != undefined, if gesture started */
2768 ev_flag = _set_state(gesture_zoom,
2769 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2770 consume_event(wd, event_info, event_type, ev_flag);
2773 _zoom_test_reset(gesture_zoom);
2783 _get_rotate_properties(Rotate_Type *st,
2784 Evas_Coord x1, Evas_Coord y1,
2785 Evas_Coord x2, Evas_Coord y2,
2787 { /* FIXME: Fix momentum computation, it's wrong */
2788 double prev_angle = *angle;
2789 st->info.radius = get_finger_gap_length(x1, y1, x2, y2,
2790 &st->info.x, &st->info.y) / 2;
2792 *angle = get_angle(x1, y1, x2, y2);
2794 if (angle == &st->info.angle)
2795 { /* Fingers are moving, compute momentum */
2796 unsigned int tm_start =
2797 (st->rotate_st.timestamp > st->rotate_st1.timestamp)
2798 ? st->rotate_st.timestamp : st->rotate_st1.timestamp;
2799 unsigned int tm_end =
2800 (st->rotate_mv.timestamp > st->rotate_mv1.timestamp)
2801 ? st->rotate_mv.timestamp : st->rotate_mv1.timestamp;
2803 unsigned int tm_total = tm_end - tm_start;
2805 { /* Momentum computed as:
2806 accumulated roation angle (deg) divided by time */
2808 if (((prev_angle < 90) && ((*angle) > 270)) ||
2809 ((prev_angle > 270) && ((*angle) < 90)))
2810 { /* We circle passing ZERO point */
2811 prev_angle = (*angle);
2813 else m = (*angle) - prev_angle;
2815 st->accum_momentum += m;
2817 if ((tm_end - st->prev_momentum_tm) < 100)
2818 st->prev_momentum += m;
2821 if (fabs(st->prev_momentum) < 0.002)
2822 st->accum_momentum = 0.0; /* reset momentum */
2824 st->prev_momentum = 0.0; /* Start again */
2827 st->prev_momentum_tm = tm_end;
2828 st->info.momentum = (st->accum_momentum * 1000) / tm_total;
2832 st->info.momentum = 0;
2838 * This function is used to test rotation gesture.
2839 * user may combine zoom, rotation together.
2840 * so its possible that both will be detected from input.
2841 * (both are two-finger movement-oriented gestures)
2843 * @param obj The gesture-layer object.
2844 * @param event_info Pointer to recent input event.
2845 * @param event_type Recent input event type.
2846 * @param g_type what Gesture we are testing.
2848 * @ingroup Elm_Gesture_Layer
2851 _rotate_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2852 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2857 Widget_Data *wd = elm_widget_data_get(obj);
2859 if (!wd->gesture[g_type]) return;
2861 Gesture_Info *gesture = wd->gesture[g_type];
2867 { /* Allocated once on first time */
2868 st = calloc(1, sizeof(Rotate_Type));
2870 _rotate_test_reset(gesture);
2874 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2877 case EVAS_CALLBACK_MOUSE_MOVE:
2878 case EVAS_CALLBACK_MULTI_MOVE:
2879 /* if non-continues mode and gesture NOT started, ignore MOVE */
2880 if ((!wd->glayer_continues_enable) &&
2881 (!st->rotate_st.timestamp))
2884 case EVAS_CALLBACK_MOUSE_DOWN:
2885 case EVAS_CALLBACK_MULTI_DOWN:
2886 { /* Here we take care of rotate-start and rotate move */
2890 if(eina_list_count(wd->touched) > 2)
2891 { /* Process rotate only when 2 fingers on surface */
2892 ev_flag = _set_state(gesture,
2893 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2894 consume_event(wd, event_info, event_type, ev_flag);
2899 if (!st->rotate_st.timestamp)
2900 { /* Now scan touched-devices list and find other finger */
2901 EINA_LIST_FOREACH(wd->touched, l, p)
2902 { /* Device of other finger <> pe device */
2903 if (p->device != pe->device)
2908 return; /* Single finger on touch */
2910 /* Record down fingers */
2911 consume_event(wd, event_info, event_type, ev_flag);
2912 memcpy(&st->rotate_st, pe, sizeof(Pointer_Event));
2913 memcpy(&st->rotate_st1, p, sizeof(Pointer_Event));
2915 /* Set mv field as well to be ready for MOVE events */
2916 memcpy(&st->rotate_mv, pe, sizeof(Pointer_Event));
2917 memcpy(&st->rotate_mv1, p, sizeof(Pointer_Event));
2919 /* Here we have rotate_st, rotate_st1 set, report START */
2920 /* Set rotate-base after BOTH down events recorded */
2921 /* Compute length of line between fingers rotate start */
2922 _get_rotate_properties(st,
2923 st->rotate_st.x, st->rotate_st.y,
2924 st->rotate_st1.x, st->rotate_st1.y,
2925 &st->info.base_angle);
2927 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
2928 &st->info, EINA_FALSE);
2929 consume_event(wd, event_info, event_type, ev_flag);
2931 return; /* Rotate started */
2932 } /* End of ROTATE_START handling */
2935 /* if we got here, we have (exacally) two fingers on surfce */
2936 /* we also after START, report MOVE */
2937 /* First detect which finger moved */
2938 if (pe->device == st->rotate_mv.device)
2939 memcpy(&st->rotate_mv, pe, sizeof(Pointer_Event));
2940 else if (pe->device == st->rotate_mv1.device)
2941 memcpy(&st->rotate_mv1, pe, sizeof(Pointer_Event));
2943 /* Compute change in rotate as fingers move */
2944 _get_rotate_properties(st,
2945 st->rotate_mv.x, st->rotate_mv.y,
2946 st->rotate_mv1.x, st->rotate_mv1.y,
2949 if (rotation_broke_tolerance(st))
2950 { /* Rotation broke tolerance, report move */
2951 double d = st->info.angle - st->next_step;
2955 if (d >= wd->rotate_step)
2956 { /* Report move in steps */
2957 st->next_step = st->info.angle;
2959 ev_flag = _set_state(gesture,
2960 ELM_GESTURE_STATE_MOVE, &st->info, EINA_TRUE);
2961 consume_event(wd, event_info, event_type, ev_flag);
2963 } /* End of ROTATE_MOVE handling */
2968 case EVAS_CALLBACK_MOUSE_UP:
2969 case EVAS_CALLBACK_MULTI_UP:
2970 consume_event(wd, event_info, event_type, ev_flag);
2971 /* Reset timestamp of finger-up.This is used later
2972 by rotate_test_reset() to retain finger-down data */
2973 if (st->rotate_angular_tolerance < 0)
2975 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2976 &st->info, EINA_FALSE);
2977 consume_event(wd, event_info, event_type, ev_flag);
2982 if (gesture->state != ELM_GESTURE_STATE_UNDEFINED)
2983 { /* Must be != undefined, if gesture started */
2984 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2985 &st->info, EINA_FALSE);
2986 consume_event(wd, event_info, event_type, ev_flag);
2989 _rotate_test_reset(gesture);
3000 * This function is used to save input events in an abstract struct
3001 * to be used later by getsure-testing functions.
3003 * @param data The gesture-layer object.
3004 * @param event_info Pointer to recent input event.
3005 * @param event_type Recent input event type.
3006 * @param pe The abstract data-struct (output).
3008 * @ingroup Elm_Gesture_Layer
3011 _make_pointer_event(void *data, void *event_info,
3012 Evas_Callback_Type event_type, Pointer_Event *pe)
3014 Widget_Data *wd = elm_widget_data_get(data);
3015 if (!wd) return EINA_FALSE;
3017 memset(pe, '\0', sizeof(*pe));
3020 case EVAS_CALLBACK_MOUSE_DOWN:
3021 pe->x = ((Evas_Event_Mouse_Down *) event_info)->canvas.x;
3022 pe->y = ((Evas_Event_Mouse_Down *) event_info)->canvas.y;
3023 pe->timestamp = ((Evas_Event_Mouse_Down *) event_info)->timestamp;
3024 pe->device = ELM_MOUSE_DEVICE;
3027 case EVAS_CALLBACK_MOUSE_UP:
3028 pe->x = ((Evas_Event_Mouse_Up *) event_info)->canvas.x;
3029 pe->y = ((Evas_Event_Mouse_Up *) event_info)->canvas.y;
3030 pe->timestamp = ((Evas_Event_Mouse_Up *) event_info)->timestamp;
3031 pe->device = ELM_MOUSE_DEVICE;
3034 case EVAS_CALLBACK_MOUSE_MOVE:
3035 pe->x = ((Evas_Event_Mouse_Move *) event_info)->cur.canvas.x;
3036 pe->y = ((Evas_Event_Mouse_Move *) event_info)->cur.canvas.y;
3037 pe->timestamp = ((Evas_Event_Mouse_Move *) event_info)->timestamp;
3038 pe->device = ELM_MOUSE_DEVICE;
3041 case EVAS_CALLBACK_MULTI_DOWN:
3042 pe->x = ((Evas_Event_Multi_Down *) event_info)->canvas.x;
3043 pe->y = ((Evas_Event_Multi_Down *) event_info)->canvas.y;
3044 pe->timestamp = ((Evas_Event_Multi_Down *) event_info)->timestamp;
3045 pe->device = ((Evas_Event_Multi_Down *) event_info)->device;
3048 case EVAS_CALLBACK_MULTI_UP:
3049 pe->x = ((Evas_Event_Multi_Up *) event_info)->canvas.x;
3050 pe->y = ((Evas_Event_Multi_Up *) event_info)->canvas.y;
3051 pe->timestamp = ((Evas_Event_Multi_Up *) event_info)->timestamp;
3052 pe->device = ((Evas_Event_Multi_Up *) event_info)->device;
3055 case EVAS_CALLBACK_MULTI_MOVE:
3056 pe->x = ((Evas_Event_Multi_Move *) event_info)->cur.canvas.x;
3057 pe->y = ((Evas_Event_Multi_Move *) event_info)->cur.canvas.y;
3058 pe->timestamp = ((Evas_Event_Multi_Move *) event_info)->timestamp;
3059 pe->device = ((Evas_Event_Multi_Move *) event_info)->device;
3066 pe->event_type = event_type;
3073 * This function restartes line, flick, zoom and rotate gestures
3074 * when gesture-layer continues-gestures enabled.
3075 * Example of continues-gesture:
3076 * When doing a line, user stops moving finger but keeps fingers on touch.
3077 * This will cause line-end, then as user continues moving his finger
3078 * it re-starts line gesture.
3079 * When continue mode is disabled, user has to lift finger from touch
3080 * to end a gesture. Them touch-again to start a new one.
3082 * @param data The gesture-layer object.
3083 * @param wd gesture layer widget data.
3084 * @param states_reset flag that marks gestures were reset in history clear.
3086 * @ingroup Elm_Gesture_Layer
3088 void continues_gestures_restart(void *data, Eina_Bool states_reset)
3090 Widget_Data *wd = elm_widget_data_get(data);
3093 /* Run through events to restart gestures */
3095 Eina_Bool n_momentum, n_lines, n_flicks, zoom, rotate;
3096 /* We turn-on flag for finished, aborted, not-started gestures */
3097 g = wd->gesture[ELM_GESTURE_MOMENTUM];
3098 n_momentum = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3099 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3102 _momentum_test_reset(wd->gesture[ELM_GESTURE_MOMENTUM]);
3103 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3107 g = wd->gesture[ELM_GESTURE_N_LINES];
3108 n_lines = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3109 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3112 _line_test_reset(wd->gesture[ELM_GESTURE_N_LINES]);
3113 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3117 g = wd->gesture[ELM_GESTURE_N_FLICKS];
3118 n_flicks = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3119 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3122 _line_test_reset(wd->gesture[ELM_GESTURE_N_FLICKS]);
3123 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3127 g = wd->gesture[ELM_GESTURE_ZOOM];
3128 zoom = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3129 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3132 _zoom_test_reset(wd->gesture[ELM_GESTURE_ZOOM]);
3133 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3137 g = wd->gesture[ELM_GESTURE_ROTATE];
3138 rotate = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3139 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3142 _rotate_test_reset(wd->gesture[ELM_GESTURE_ROTATE]);
3143 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3151 * This function the core-function where input handling is done.
3152 * Here we get user input and stream it to gesture testing.
3153 * We notify user about any gestures with new state:
3155 * START - gesture started.
3156 * MOVE - gesture is ongoing.
3157 * END - gesture was completed.
3158 * ABORT - gesture was aborted after START, MOVE (will NOT be completed)
3160 * We also check if a gesture was detected, then reset event history
3161 * If no gestures were found we reset gesture test flag
3162 * after streaming event-history to widget.
3163 * (stream to the widget all events not consumed as a gesture)
3165 * @param data The gesture-layer object.
3166 * @param event_info Pointer to recent input event.
3167 * @param event_type Recent input event type.
3169 * @ingroup Elm_Gesture_Layer
3172 _event_process(void *data, Evas_Object *obj __UNUSED__,
3173 void *event_info, Evas_Callback_Type event_type)
3176 Pointer_Event *pe = NULL;
3177 Widget_Data *wd = elm_widget_data_get(data);
3180 #if defined(DEBUG_GESTURE_LAYER)
3183 printf("Gesture | State | is tested\n");
3184 for(i = ELM_GESTURE_N_TAPS; i < ELM_GESTURE_LAST; i++)
3188 printf(" %d %d %d\n", i, g->state, g->test);
3192 /* Start testing candidate gesture from here */
3193 if (_make_pointer_event(data, event_info, event_type, &_pe))
3196 if (IS_TESTED(ELM_GESTURE_N_LONG_TAPS))
3197 _n_long_tap_test(data, pe, event_info, event_type,
3198 ELM_GESTURE_N_LONG_TAPS);
3200 /* This takes care of single, double and tripple tap */
3201 _tap_gestures_test(data, pe, event_info, event_type);
3203 if (IS_TESTED(ELM_GESTURE_MOMENTUM))
3204 _momentum_test(data, pe, event_info, event_type,
3205 ELM_GESTURE_MOMENTUM);
3207 if (IS_TESTED(ELM_GESTURE_N_LINES))
3208 _n_line_test(data, pe, event_info, event_type, ELM_GESTURE_N_LINES);
3210 if (IS_TESTED(ELM_GESTURE_N_FLICKS))
3211 _n_line_test(data, pe, event_info, event_type, ELM_GESTURE_N_FLICKS);
3213 if (_elm_config->glayer_zoom_finger_enable && IS_TESTED(ELM_GESTURE_ZOOM))
3214 _zoom_test(data, pe, event_info, event_type, ELM_GESTURE_ZOOM);
3216 if (IS_TESTED(ELM_GESTURE_ZOOM))
3217 _zoom_with_wheel_test(data, event_info, event_type, ELM_GESTURE_ZOOM);
3219 if (_elm_config->glayer_rotate_finger_enable && IS_TESTED(ELM_GESTURE_ROTATE))
3220 _rotate_test(data, pe, event_info, event_type, ELM_GESTURE_ROTATE);
3222 if (_get_event_flag(event_info, event_type) & EVAS_EVENT_FLAG_ON_HOLD)
3223 _event_history_add(data, event_info, event_type);
3224 else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
3225 (event_type == EVAS_CALLBACK_MULTI_UP))
3227 Eina_List *pending = _device_is_pending(wd->pending, event_info, event_type);
3230 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_ON_HOLD);
3231 _event_history_add(data, event_info, event_type);
3235 /* we maintain list of touched devices */
3236 /* We also use move to track current device x.y pos */
3237 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
3238 (event_type == EVAS_CALLBACK_MULTI_DOWN) ||
3239 (event_type == EVAS_CALLBACK_MOUSE_MOVE) ||
3240 (event_type == EVAS_CALLBACK_MULTI_MOVE))
3242 wd->touched = _add_touched_device(wd->touched, pe);
3244 else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
3245 (event_type == EVAS_CALLBACK_MULTI_UP))
3247 wd->touched = _remove_touched_device(wd->touched, pe);
3250 /* Report current states and clear history if needed */
3251 Eina_Bool states_reset = _clear_if_finished(data);
3252 if (wd->glayer_continues_enable)
3253 continues_gestures_restart(data, states_reset);
3258 * For all _mouse_* / multi_* functions wethen send this event to
3259 * _event_process function.
3261 * @param data The gesture-layer object.
3262 * @param event_info Pointer to recent input event.
3264 * @ingroup Elm_Gesture_Layer
3267 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3270 Widget_Data *wd = elm_widget_data_get(data);
3272 if (((Evas_Event_Mouse_Down *) event_info)->button != 1)
3273 return; /* We only process left-click at the moment */
3275 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_DOWN);
3279 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3282 Widget_Data *wd = elm_widget_data_get(data);
3285 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_MOVE);
3289 _key_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3292 Widget_Data *wd = elm_widget_data_get(data);
3295 _event_process(data, obj, event_info, EVAS_CALLBACK_KEY_DOWN);
3299 _key_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3302 Widget_Data *wd = elm_widget_data_get(data);
3305 _event_process(data, obj, event_info, EVAS_CALLBACK_KEY_UP);
3309 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3312 Widget_Data *wd = elm_widget_data_get(data);
3315 if (((Evas_Event_Mouse_Up *) event_info)->button != 1)
3316 return; /* We only process left-click at the moment */
3318 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_UP);
3322 _mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3325 Widget_Data *wd = elm_widget_data_get(data);
3328 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_WHEEL);
3332 _multi_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3335 Widget_Data *wd = elm_widget_data_get(data);
3338 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_DOWN);
3342 _multi_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3345 Widget_Data *wd = elm_widget_data_get(data);
3348 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_MOVE);
3352 _multi_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3355 Widget_Data *wd = elm_widget_data_get(data);
3358 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_UP);
3362 elm_gesture_layer_hold_events_get(Evas_Object *obj)
3364 Widget_Data *wd = elm_widget_data_get(obj);
3365 if (!wd) return EINA_FALSE;
3367 return !wd->repeat_events;
3371 elm_gesture_layer_hold_events_set(Evas_Object *obj, Eina_Bool r)
3373 Widget_Data *wd = elm_widget_data_get(obj);
3376 wd->repeat_events = !r;
3380 elm_gesture_layer_zoom_step_set(Evas_Object *obj, double s)
3382 Widget_Data *wd = elm_widget_data_get(obj);
3392 elm_gesture_layer_rotate_step_set(Evas_Object *obj, double s)
3394 Widget_Data *wd = elm_widget_data_get(obj);
3400 wd->rotate_step = s;
3404 elm_gesture_layer_attach(Evas_Object *obj, Evas_Object *t)
3406 Widget_Data *wd = elm_widget_data_get(obj);
3407 if (!wd) return EINA_FALSE;
3412 /* if was attached before, unregister callbacks first */
3414 _unregister_callbacks(obj);
3418 _register_callbacks(obj);
3423 elm_gesture_layer_cb_set(Evas_Object *obj, Elm_Gesture_Types idx,
3424 Elm_Gesture_State cb_type, Elm_Gesture_Event_Cb cb, void *data)
3426 Widget_Data *wd = elm_widget_data_get(obj);
3430 if (!wd->gesture[idx])
3431 wd->gesture[idx] = calloc(1, sizeof(Gesture_Info));
3432 if (!wd->gesture[idx]) return;
3434 p = wd->gesture[idx];
3437 p->fn[cb_type].cb = cb;
3438 p->fn[cb_type].user_data = data;
3439 p->state = ELM_GESTURE_STATE_UNDEFINED;
3444 _disable_hook(Evas_Object *obj)
3446 if (elm_widget_disabled_get(obj))
3447 _unregister_callbacks(obj);
3449 _register_callbacks(obj);
3453 elm_gesture_layer_add(Evas_Object *parent)
3459 ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
3461 ELM_SET_WIDTYPE(widtype, "gesture_layer");
3462 elm_widget_type_set(obj, "gesture_layer");
3463 elm_widget_sub_object_add(parent, obj);
3464 elm_widget_data_set(obj, wd);
3465 elm_widget_del_hook_set(obj, _del_hook);
3466 elm_widget_disable_hook_set(obj, _disable_hook);
3469 wd->line_min_length =_elm_config->glayer_line_min_length * elm_finger_size_get();
3470 wd->zoom_distance_tolerance = _elm_config->glayer_zoom_distance_tolerance * elm_finger_size_get();
3471 wd->line_distance_tolerance = _elm_config->glayer_line_distance_tolerance * elm_finger_size_get();
3472 wd->zoom_finger_factor = _elm_config->glayer_zoom_finger_factor;
3473 wd->zoom_wheel_factor = _elm_config->glayer_zoom_wheel_factor; /* mouse wheel zoom steps */
3474 wd->rotate_angular_tolerance = _elm_config->glayer_rotate_angular_tolerance;
3475 wd->line_angular_tolerance = _elm_config->glayer_line_angular_tolerance;
3476 wd->flick_time_limit_ms = _elm_config->glayer_flick_time_limit_ms;
3477 wd->long_tap_start_timeout = _elm_config->glayer_long_tap_start_timeout;
3478 wd->repeat_events = EINA_TRUE;
3479 wd->glayer_continues_enable = _elm_config->glayer_continues_enable;
3481 #if defined(DEBUG_GESTURE_LAYER)
3482 printf("size of Gestures = <%d>\n", sizeof(wd->gesture));
3483 printf("initial values:\n\tzoom_finger_factor=<%f>\n\tzoom_distance_tolerance=<%d>\n\tline_min_length=<%d>\n\tline_distance_tolerance=<%d>\n\tzoom_wheel_factor=<%f>\n\trotate_angular_tolerance=<%f>\n\twd->line_angular_tolerance=<%f>\n\twd->flick_time_limit_ms=<%d>\n\twd->long_tap_start_timeout=<%f>\n\twd->zoom_step=<%f>\n\twd->rotate_step=<%f>\n\twd->glayer_continues_enable=<%d>\n ", wd->zoom_finger_factor, wd->zoom_distance_tolerance, wd->line_min_length, wd->line_distance_tolerance, wd->zoom_wheel_factor, wd->rotate_angular_tolerance, wd->line_angular_tolerance, wd->flick_time_limit_ms, wd->long_tap_start_timeout, wd->zoom_step, wd->rotate_step, wd->glayer_continues_enable);
3485 memset(wd->gesture, 0, sizeof(wd->gesture));