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
12 /* Some Trigo values */
13 #define RAD_90DEG M_PI_2
14 #define RAD_180DEG M_PI
15 #define RAD_270DEG (M_PI_2 * 3)
16 #define RAD_360DEG (M_PI * 2)
17 /* #define DEBUG_GESTURE_LAYER 1 */
20 _glayer_bufdup(void *buf, size_t size)
27 #define COPY_EVENT_INFO(EV) _glayer_bufdup(EV, sizeof(*EV))
30 #define SET_TEST_BIT(P) do { \
31 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; \
34 #define IS_TESTED(T) ((wd->gesture[T]) ? wd->gesture[T]->test : EINA_FALSE)
40 * Struct holds callback information.
42 * @ingroup Elm_Gesture_Layer
46 void *user_data; /**< Holds user data to CB (like sd) */
47 Elm_Gesture_Event_Cb cb;
54 * type for callback information
56 * @ingroup Elm_Gesture_Layer
58 typedef struct _Func_Data Func_Data;
63 * @struct _Gesture_Info
64 * Struct holds gesture info
66 * @ingroup Elm_Gesture_Layer
71 void *data; /**< Holds gesture intemidiate processing data */
72 Func_Data fn[ELM_GESTURE_STATE_ABORT + 1]; /**< Callback info for states */
73 Elm_Gesture_Types g_type; /**< gesture type */
74 Elm_Gesture_State state; /**< gesture state */
75 void *info; /**< Data for the state callback */
76 Eina_Bool test; /**< if true this gesture should be tested on input */
82 * @typedef Gesture_Info
83 * Type for _Gesture_Info
85 * @ingroup Elm_Gesture_Layer
87 typedef struct _Gesture_Info Gesture_Info;
92 * @struct _Event_History
93 * Struct holds event history.
94 * These events are repeated if no gesture found.
96 * @ingroup Elm_Gesture_Layer
102 Evas_Callback_Type event_type;
108 * @typedef Event_History
109 * Type for _Event_History
111 * @ingroup Elm_Gesture_Layer
113 typedef struct _Event_History Event_History;
118 * @struct _Pointer_Event
119 * Struct holds pointer-event info
120 * This is a generic pointer event structure
122 * @ingroup Elm_Gesture_Layer
124 struct _Pointer_Event
127 unsigned int timestamp;
129 Evas_Callback_Type event_type;
135 * @typedef Pointer_Event
136 * Type for generic pointer event structure
138 * @ingroup Elm_Gesture_Layer
140 typedef struct _Pointer_Event Pointer_Event;
142 /* All *Type structs hold result for the user in 'info' field
143 * The rest is gesture processing intermediate data.
144 * NOTE: info field must be FIRST in the struct.
145 * This is used when reporting ABORT in event_history_clear() */
148 Elm_Gesture_Taps_Info info;
151 unsigned int n_taps_needed;
155 typedef struct _Taps_Type Taps_Type;
157 struct _Long_Tap_Type
159 Elm_Gesture_Taps_Info info;
162 unsigned int max_touched;
163 Ecore_Timer *timeout; /* When this expires, long tap STARTed */
166 typedef struct _Long_Tap_Type Long_Tap_Type;
168 struct _Momentum_Type
169 { /* Fields used by _line_test() */
170 Elm_Gesture_Momentum_Info info;
171 Evas_Coord_Point line_st;
172 Evas_Coord_Point line_end;
173 unsigned int t_st_x; /* Time start on X */
174 unsigned int t_st_y; /* Time start on Y */
175 unsigned int t_end; /* Time end */
176 unsigned int t_up; /* Recent up event time */
179 typedef struct _Momentum_Type Momentum_Type;
183 Evas_Coord_Point line_st;
184 Evas_Coord_Point line_end;
185 Evas_Coord line_length;
186 unsigned int t_st; /* Time start */
187 unsigned int t_end; /* Time end */
189 double line_angle; /* Current angle of line */
191 typedef struct _Line_Data Line_Data;
194 { /* Fields used by _line_test() */
195 Elm_Gesture_Line_Info info;
196 Eina_List *list; /* List of Line_Data */
198 typedef struct _Line_Type Line_Type;
201 { /* Fields used by _zoom_test() */
202 Elm_Gesture_Zoom_Info info;
203 Pointer_Event zoom_st;
204 Pointer_Event zoom_mv;
205 Pointer_Event zoom_st1;
206 Pointer_Event zoom_mv1;
207 Evas_Event_Mouse_Wheel *zoom_wheel;
208 Evas_Coord zoom_base; /* Holds gap between fingers on zoom-start */
209 Evas_Coord zoom_distance_tolerance;
210 Elm_Gesture_Momentum_Info momentum1; /* For continues gesture */
211 Elm_Gesture_Momentum_Info momentum2; /* For continues gesture */
214 typedef struct _Zoom_Type Zoom_Type;
217 { /* Fields used by _rotation_test() */
218 Elm_Gesture_Rotate_Info info;
219 Pointer_Event rotate_st;
220 Pointer_Event rotate_mv;
221 Pointer_Event rotate_st1;
222 Pointer_Event rotate_mv1;
223 double rotate_angular_tolerance;
225 Elm_Gesture_Momentum_Info momentum1; /* For continues gesture */
226 Elm_Gesture_Momentum_Info momentum2; /* For continues gesture */
228 typedef struct _Rotate_Type Rotate_Type;
232 Evas_Object *target; /* Target Widget */
233 Event_History *event_history_list;
236 Evas_Coord zoom_distance_tolerance;
237 Evas_Coord line_distance_tolerance;
238 double line_angular_tolerance;
239 double zoom_wheel_factor; /* mouse wheel zoom steps */
240 double zoom_finger_factor; /* used for zoom factor */
241 double rotate_angular_tolerance;
242 unsigned int flick_time_limit_ms;
243 double long_tap_start_timeout;
244 Eina_Bool glayer_continues_enable;
249 Gesture_Info *gesture[ELM_GESTURE_LAST];
250 Ecore_Timer *dbl_timeout; /* When this expires, dbl click/taps ABORTed */
251 Eina_List *pending; /* List of devices need to refeed *UP event */
252 Eina_List *touched; /* Information of touched devices */
254 Eina_Bool repeat_events : 1;
256 typedef struct _Widget_Data Widget_Data;
258 static const char *widtype = NULL;
259 static void _del_hook(Evas_Object *obj);
261 static Eina_Bool _event_history_clear(Evas_Object *obj);
262 static void _reset_states(Widget_Data *wd);
263 static void _key_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
264 static void _key_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
265 static void _zoom_with_wheel_test(Evas_Object *obj, void *event_info, Evas_Callback_Type event_type, Elm_Gesture_Types g_type);
266 static void _mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
267 static void _mouse_down(void *data, Evas *e, Evas_Object *obj, void *event_info);
268 static void _mouse_move(void *data, Evas *e, Evas_Object *obj, void *event_info);
269 static void _mouse_up(void *data, Evas *e, Evas_Object *obj, void *event_info);
271 static void _multi_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
272 static void _multi_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
273 static void _multi_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
275 /* START - Functions to manage touched-device list */
278 * This function is used to find if device is touched
280 * @ingroup Elm_Gesture_Layer
283 compare_device(const void *data1, const void *data2)
284 { /* Compare the two device numbers */
285 return (((Pointer_Event *) data1)->device -((Pointer_Event *) data2)->device);
291 * Remove Pointer Event from touched device list
292 * @param list Pointer to touched device list.
293 * @param Pointer_Event Pointer to PE.
295 * @ingroup Elm_Gesture_Layer
298 _remove_touched_device(Eina_List *list, Pointer_Event *pe)
300 Eina_List *lst = NULL;
301 Pointer_Event *p = eina_list_search_unsorted(list, compare_device, pe);
304 lst = eina_list_remove(list, p);
315 * Recoed Pointer Event in touched device list
316 * Note: This fuction allocates memory for PE event
317 * This memory is released in _remove_touched_device()
318 * @param list Pointer to touched device list.
319 * @param Pointer_Event Pointer to PE.
321 * @ingroup Elm_Gesture_Layer
324 _add_touched_device(Eina_List *list, Pointer_Event *pe)
326 Pointer_Event *p = eina_list_search_unsorted(list, compare_device, pe);
328 { /* We like to track device touch-position, overwrite info */
329 memcpy(p, pe, sizeof(Pointer_Event));
333 p = malloc(sizeof(Pointer_Event));
334 memcpy(p, pe, sizeof(Pointer_Event)); /* Freed in _remove_touched_device() */
335 return eina_list_append(list, p);
337 /* END - Functions to manage touched-device list */
343 * @param event_info pointer to event.
345 * @ingroup Elm_Gesture_Layer
347 static Evas_Event_Flags
348 _get_event_flag(void *event_info, Evas_Callback_Type event_type)
352 case EVAS_CALLBACK_MOUSE_IN:
353 return ((Evas_Event_Mouse_In *) event_info)->event_flags;
354 case EVAS_CALLBACK_MOUSE_OUT:
355 return ((Evas_Event_Mouse_Out *) event_info)->event_flags;
356 case EVAS_CALLBACK_MOUSE_DOWN:
357 return ((Evas_Event_Mouse_Down *) event_info)->event_flags;
358 case EVAS_CALLBACK_MOUSE_MOVE:
359 return ((Evas_Event_Mouse_Move *) event_info)->event_flags;
360 case EVAS_CALLBACK_MOUSE_UP:
361 return ((Evas_Event_Mouse_Up *) event_info)->event_flags;
362 case EVAS_CALLBACK_MOUSE_WHEEL:
363 return ((Evas_Event_Mouse_Wheel *) event_info)->event_flags;
364 case EVAS_CALLBACK_MULTI_DOWN:
365 return ((Evas_Event_Multi_Down *) event_info)->event_flags;
366 case EVAS_CALLBACK_MULTI_MOVE:
367 return ((Evas_Event_Multi_Move *) event_info)->event_flags;
368 case EVAS_CALLBACK_MULTI_UP:
369 return ((Evas_Event_Multi_Up *) event_info)->event_flags;
370 case EVAS_CALLBACK_KEY_DOWN:
371 return ((Evas_Event_Key_Down *) event_info)->event_flags;
372 case EVAS_CALLBACK_KEY_UP:
373 return ((Evas_Event_Key_Up *) event_info)->event_flags;
375 return EVAS_EVENT_FLAG_NONE;
382 * Sets event flag to value returned from user callback
383 * @param wd Widget Data
384 * @param event_info pointer to event.
385 * @param event_type what type was ev (mouse down, etc...)
386 * @param ev_flags event flags
388 * @ingroup Elm_Gesture_Layer
391 consume_event(Widget_Data *wd, void *event_info,
392 Evas_Callback_Type event_type, Evas_Event_Flags ev_flags)
393 { /* Mark EVAS_EVENT_FLAG_ON_HOLD on events that are used by gesture layer */
394 /* ev_flags != EVAS_EVENT_FLAG_NONE means target used event and g-layer */
395 /* should not refeed this event. */
397 return; /* This happens when restarting gestures */
399 if ((ev_flags) || (!wd->repeat_events))
403 case EVAS_CALLBACK_MOUSE_DOWN:
404 ((Evas_Event_Mouse_Down *) event_info)->event_flags |= ev_flags;
406 case EVAS_CALLBACK_MOUSE_MOVE:
407 ((Evas_Event_Mouse_Move *) event_info)->event_flags |= ev_flags;
409 case EVAS_CALLBACK_MOUSE_UP:
410 ((Evas_Event_Mouse_Up *) event_info)->event_flags |= ev_flags;
412 case EVAS_CALLBACK_MOUSE_WHEEL:
413 ((Evas_Event_Mouse_Wheel *) event_info)->event_flags |= ev_flags;
415 case EVAS_CALLBACK_MULTI_DOWN:
416 ((Evas_Event_Multi_Down *) event_info)->event_flags |= ev_flags;
418 case EVAS_CALLBACK_MULTI_MOVE:
419 ((Evas_Event_Multi_Move *) event_info)->event_flags |= ev_flags;
421 case EVAS_CALLBACK_MULTI_UP:
422 ((Evas_Event_Multi_Up *) event_info)->event_flags |= ev_flags;
424 case EVAS_CALLBACK_KEY_DOWN:
425 ((Evas_Event_Key_Down *) event_info)->event_flags |= ev_flags;
427 case EVAS_CALLBACK_KEY_UP:
428 ((Evas_Event_Key_Up *) event_info)->event_flags |= ev_flags;
439 * Report current state of a gesture by calling user callback.
440 * @param gesture what gesture state we report.
441 * @param info inforamtion for user callback
443 * @ingroup Elm_Gesture_Layer
445 static Evas_Event_Flags
446 _report_state(Gesture_Info *gesture, void *info)
447 { /* We report current state (START, MOVE, END, ABORT), once */
448 #if defined(DEBUG_GESTURE_LAYER)
449 printf("%s reporting gesture=<%d> state=<%d>\n" , __func__, gesture->g_type,
452 if ((gesture->state != ELM_GESTURE_STATE_UNDEFINED) &&
453 (gesture->fn[gesture->state].cb))
454 { /* Fill state-info struct and send ptr to user callback */
455 return gesture->fn[gesture->state].cb(
456 gesture->fn[gesture->state].user_data, info);
459 return EVAS_EVENT_FLAG_NONE;
465 * Update state for a given gesture.
466 * We may update gesture state to:
467 * UNDEFINED - current input did not start gesure yet.
468 * START - gesture started according to input.
469 * MOVE - gusture in progress.
470 * END - gesture completed according to input.
471 * ABORT - input does not matches gesure.
472 * note that we may move from UNDEFINED to ABORT
473 * because we may detect that gesture will not START
474 * with a given input.
476 * @param g given gesture to change state.
477 * @param s gesure new state.
478 * @param info buffer to be sent to user callback on report_state.
479 * @param force makes report_state to report the new-state even
480 * if its same as current state. Works for MOVE - gesture in progress.
482 * @ingroup Elm_Gesture_Layer
484 static Evas_Event_Flags
485 _set_state(Gesture_Info *g, Elm_Gesture_State s,
486 void *info, Eina_Bool force)
488 Elm_Gesture_State old_state;
489 if ((g->state == s) && (!force))
490 return EVAS_EVENT_FLAG_NONE;
492 old_state = g->state;
495 g->info = info; /* Information for user callback */
496 if ((g->state == ELM_GESTURE_STATE_ABORT) ||
497 (g->state == ELM_GESTURE_STATE_END))
498 g->test = EINA_FALSE;
500 if ((g->state != ELM_GESTURE_STATE_UNDEFINED) &&
501 (!((old_state == ELM_GESTURE_STATE_UNDEFINED) &&
502 (s == ELM_GESTURE_STATE_ABORT))))
503 return _report_state(g, g->info);
505 return EVAS_EVENT_FLAG_NONE;
511 * This resets all gesture states and sets test-bit.
512 * this is used for restarting gestures to listen to input.
513 * happens after we complete a gesture or no gesture was detected.
514 * @param wd Widget data of the gesture-layer object.
516 * @ingroup Elm_Gesture_Layer
519 _reset_states(Widget_Data *wd)
523 for (i = ELM_GESTURE_FIRST; i < ELM_GESTURE_LAST; i++)
528 _set_state(p, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
537 * if gesture was NOT detected AND we only have gestures in ABORT state
538 * we clear history immediately to be ready for input.
540 * @param obj The gesture-layer object.
541 * @return TRUE on event history_clear
543 * @ingroup Elm_Gesture_Layer
546 _clear_if_finished(Evas_Object *obj)
548 Widget_Data *wd = elm_widget_data_get(obj);
549 if (!wd) return EINA_FALSE;
552 /* Clear history if all we have aborted gestures */
553 Eina_Bool reset_s = EINA_TRUE, all_undefined = EINA_TRUE;
554 for (i = ELM_GESTURE_FIRST; i < ELM_GESTURE_LAST; i++)
555 { /* If no gesture started and all we have aborted gestures, reset all */
556 Gesture_Info *p = wd->gesture[i];
557 if ((p) && (p->state != ELM_GESTURE_STATE_UNDEFINED))
559 if ((p->state == ELM_GESTURE_STATE_START) ||
560 (p->state == ELM_GESTURE_STATE_MOVE))
561 reset_s = EINA_FALSE;
563 all_undefined = EINA_FALSE;
567 if (reset_s && (!all_undefined))
568 return _event_history_clear(obj);
574 _inside(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
576 int w = elm_finger_size_get() >> 1; /* Finger size devided by 2 */
592 /* All *test_reset() funcs are called to clear
593 * gesture intermediate data.
594 * This happens when we need to reset our tests.
595 * for example when gesture is detected or all ABORTed. */
597 _tap_gestures_test_reset(Gesture_Info *gesture)
602 Widget_Data *wd = elm_widget_data_get(gesture->obj);
603 wd->dbl_timeout = NULL;
610 EINA_LIST_FREE(((Taps_Type *) gesture->data)->l, data)
611 EINA_LIST_FREE(data, pe)
614 memset(gesture->data, 0, sizeof(Taps_Type));
617 /* All *test_reset() funcs are called to clear
618 * gesture intermediate data.
619 * This happens when we need to reset our tests.
620 * for example when gesture is detected or all ABORTed. */
622 _n_long_tap_test_reset(Gesture_Info *gesture)
630 Long_Tap_Type *st = gesture->data;
633 EINA_LIST_FOREACH(st->touched, l, p)
636 eina_list_free(st->touched);
637 if (st->timeout) ecore_timer_del(st->timeout);
638 memset(gesture->data, 0, sizeof(Long_Tap_Type));
642 _momentum_test_reset(Gesture_Info *gesture)
650 memset(gesture->data, 0, sizeof(Momentum_Type));
654 _line_data_reset(Line_Data *st)
659 memset(st, 0, sizeof(Line_Data));
660 st->line_angle = ELM_GESTURE_NEGATIVE_ANGLE;
664 _line_test_reset(Gesture_Info *gesture)
672 Line_Type *st = gesture->data;
673 Eina_List *list = st->list;
676 EINA_LIST_FOREACH(list, l, t_line)
679 eina_list_free(list);
684 _zoom_test_reset(Gesture_Info *gesture)
692 Widget_Data *wd = elm_widget_data_get(gesture->obj);
693 Zoom_Type *st = gesture->data;
694 Evas_Modifier_Mask mask = evas_key_modifier_mask_get(
695 evas_object_evas_get(wd->target), "Control");
696 evas_object_key_ungrab(wd->target, "Control_L", mask, 0);
697 evas_object_key_ungrab(wd->target, "Control_R", mask, 0);
699 memset(st, 0, sizeof(Zoom_Type));
700 st->zoom_distance_tolerance = wd->zoom_distance_tolerance;
705 _rotate_test_reset(Gesture_Info *gesture)
713 Widget_Data *wd = elm_widget_data_get(gesture->obj);
714 Rotate_Type *st = gesture->data;
716 memset(st, 0, sizeof(Rotate_Type));
717 st->info.base_angle = ELM_GESTURE_NEGATIVE_ANGLE;
718 st->rotate_angular_tolerance = wd->rotate_angular_tolerance;
725 * We register callbacks when gesture layer is attached to an object
726 * or when its enabled after disable.
728 * @param obj The gesture-layer object.
730 * @ingroup Elm_Gesture_Layer
733 _register_callbacks(Evas_Object *obj)
735 Widget_Data *wd = elm_widget_data_get(obj);
740 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_DOWN,
742 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_MOVE,
744 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_UP,
747 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_WHEEL,
750 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_DOWN,
752 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_MOVE,
754 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_UP,
757 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_KEY_DOWN,
759 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_KEY_UP,
767 * We unregister callbacks when gesture layer is disabled.
769 * @param obj The gesture-layer object.
771 * @ingroup Elm_Gesture_Layer
774 _unregister_callbacks(Evas_Object *obj)
776 Widget_Data *wd = elm_widget_data_get(obj);
781 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_DOWN,
783 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_MOVE,
785 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_UP,
788 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_WHEEL,
791 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_DOWN,
794 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_MOVE,
797 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_UP,
800 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_KEY_DOWN,
802 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_KEY_UP,
807 /* START - Event history list handling functions */
810 * This function is used to find if device number
811 * is found in a list of devices.
812 * The list contains devices for refeeding *UP event
814 * @ingroup Elm_Gesture_Layer
817 device_in_pending_list(const void *data1, const void *data2)
818 { /* Compare the two device numbers */
819 return (((intptr_t) data1) - ((intptr_t) data2));
825 * This functions adds device to refeed-pending device list
826 * @ingroup Elm_Gesture_Layer
829 _add_device_pending(Eina_List *list, void *event, Evas_Callback_Type event_type)
831 int device = ELM_MOUSE_DEVICE;
834 case EVAS_CALLBACK_MOUSE_DOWN:
836 case EVAS_CALLBACK_MULTI_DOWN:
837 device = ((Evas_Event_Multi_Down *) event)->device;
843 if (!eina_list_search_unsorted_list(list, device_in_pending_list,
846 return eina_list_append(list, (intptr_t*) device);
855 * This functions returns pending-device node
856 * @ingroup Elm_Gesture_Layer
859 _device_is_pending(Eina_List *list, void *event, Evas_Callback_Type event_type)
861 int device = ELM_MOUSE_DEVICE;
864 case EVAS_CALLBACK_MOUSE_UP:
866 case EVAS_CALLBACK_MULTI_UP:
867 device = ((Evas_Event_Multi_Up *) event)->device;
873 return eina_list_search_unsorted_list(list, device_in_pending_list,
874 (intptr_t *) device);
880 * This function reports ABORT to all none-detected gestures
881 * Then resets test bits for all desired gesures
882 * and clears input-events history.
883 * note: if no gesture was detected, events from history list
884 * are streamed to the widget because it's unused by layer.
885 * user may cancel refeed of events by setting repeat events.
887 * @param obj The gesture-layer object.
889 * @ingroup Elm_Gesture_Layer
892 _event_history_clear(Evas_Object *obj)
894 Widget_Data *wd = elm_widget_data_get(obj);
895 if (!wd) return EINA_FALSE;
899 Evas *e = evas_object_evas_get(obj);
900 Eina_Bool gesture_found = EINA_FALSE;
901 for (i = ELM_GESTURE_FIRST ; i < ELM_GESTURE_LAST; i++)
906 if (p->state == ELM_GESTURE_STATE_END)
907 gesture_found = EINA_TRUE;
909 { /* Report ABORT to all gestures that still not finished */
910 _set_state(p, ELM_GESTURE_STATE_ABORT, wd->gesture[i]->info,
916 _reset_states(wd); /* we are ready to start testing for gestures again */
918 /* Clear all gestures intermediate data */
919 if (IS_TESTED(ELM_GESTURE_N_LONG_TAPS))
920 { /* We do not clear a long-tap gesture if fingers still on surface */
921 /* and gesture timer still pending to test gesture state */
922 Long_Tap_Type *st = wd->gesture[ELM_GESTURE_N_LONG_TAPS]->data;
923 if ((st) && /* st not allocated if clear occurs before 1st input */
924 ((!eina_list_count(st->touched)) || (!st->timeout)))
925 _n_long_tap_test_reset(wd->gesture[ELM_GESTURE_N_LONG_TAPS]);
930 ecore_timer_del(wd->dbl_timeout);
931 wd->dbl_timeout = NULL;
934 _tap_gestures_test_reset(wd->gesture[ELM_GESTURE_N_TAPS]);
935 _tap_gestures_test_reset(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
936 _tap_gestures_test_reset(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
937 _momentum_test_reset(wd->gesture[ELM_GESTURE_MOMENTUM]);
938 _line_test_reset(wd->gesture[ELM_GESTURE_N_LINES]);
939 _line_test_reset(wd->gesture[ELM_GESTURE_N_FLICKS]);
940 _zoom_test_reset(wd->gesture[ELM_GESTURE_ZOOM]);
941 _rotate_test_reset(wd->gesture[ELM_GESTURE_ROTATE]);
943 /* Disable gesture layer so refeeded events won't be consumed by it */
944 _unregister_callbacks(obj);
945 while (wd->event_history_list)
948 t = wd->event_history_list;
949 Eina_List *pending = _device_is_pending(wd->pending,
950 wd->event_history_list->event,
951 wd->event_history_list->event_type);
953 /* Refeed events if no gesture matched input */
954 if (pending || ((!gesture_found) && (!wd->repeat_events)))
956 evas_event_refeed_event(e, wd->event_history_list->event,
957 wd->event_history_list->event_type);
961 wd->pending = eina_list_remove_list(wd->pending, pending);
965 wd->pending = _add_device_pending(wd->pending,
966 wd->event_history_list->event,
967 wd->event_history_list->event_type);
971 free(wd->event_history_list->event);
972 wd->event_history_list = (Event_History *) eina_inlist_remove(
973 EINA_INLIST_GET(wd->event_history_list),
974 EINA_INLIST_GET(wd->event_history_list));
977 _register_callbacks(obj);
984 * This function copies input events.
985 * We copy event info before adding it to history.
986 * The memory is freed when we clear history.
988 * @param event the event to copy
989 * @param event_type event type to copy
991 * @ingroup Elm_Gesture_Layer
994 _copy_event_info(void *event, Evas_Callback_Type event_type)
998 case EVAS_CALLBACK_MOUSE_DOWN:
999 return COPY_EVENT_INFO((Evas_Event_Mouse_Down *) event);
1001 case EVAS_CALLBACK_MOUSE_MOVE:
1002 return COPY_EVENT_INFO((Evas_Event_Mouse_Move *) event);
1004 case EVAS_CALLBACK_MOUSE_UP:
1005 return COPY_EVENT_INFO((Evas_Event_Mouse_Up *) event);
1007 case EVAS_CALLBACK_MOUSE_WHEEL:
1008 return COPY_EVENT_INFO((Evas_Event_Mouse_Wheel *) event);
1010 case EVAS_CALLBACK_MULTI_DOWN:
1011 return COPY_EVENT_INFO((Evas_Event_Multi_Down *) event);
1013 case EVAS_CALLBACK_MULTI_MOVE:
1014 return COPY_EVENT_INFO((Evas_Event_Multi_Move *) event);
1016 case EVAS_CALLBACK_MULTI_UP:
1017 return COPY_EVENT_INFO((Evas_Event_Multi_Up *) event);
1019 case EVAS_CALLBACK_KEY_DOWN:
1020 return COPY_EVENT_INFO((Evas_Event_Key_Down *) event);
1022 case EVAS_CALLBACK_KEY_UP:
1023 return COPY_EVENT_INFO((Evas_Event_Key_Up *) event);
1031 _event_history_add(Evas_Object *obj, void *event, Evas_Callback_Type event_type)
1033 Widget_Data *wd = elm_widget_data_get(obj);
1035 if (!wd) return EINA_FALSE;
1037 ev = malloc(sizeof(Event_History));
1038 ev->event = _copy_event_info(event, event_type); /* Freed on event_history_clear */
1039 ev->event_type = event_type;
1040 wd->event_history_list = (Event_History *) eina_inlist_append(
1041 EINA_INLIST_GET(wd->event_history_list), EINA_INLIST_GET(ev));
1045 /* END - Event history list handling functions */
1048 _del_hook(Evas_Object *obj)
1050 Widget_Data *wd = elm_widget_data_get(obj);
1053 _event_history_clear(obj);
1054 eina_list_free(wd->pending);
1056 Pointer_Event *data;
1057 EINA_LIST_FREE(wd->touched, data)
1060 if (!elm_widget_disabled_get(obj))
1061 _unregister_callbacks(obj);
1063 /* Free all gestures internal data structures */
1065 for (i = 0; i < ELM_GESTURE_LAST; i++)
1068 if (wd->gesture[i]->data)
1069 free(wd->gesture[i]->data);
1071 free(wd->gesture[i]);
1078 compare_match_fingers(const void *data1, const void *data2)
1079 { /* Compare coords of first item in list to cur coords */
1080 const Pointer_Event *pe1 = eina_list_data_get(data1);
1081 const Pointer_Event *pe2 = data2;
1083 if (_inside(pe1->x, pe1->y, pe2->x, pe2->y))
1085 else if (pe1->x < pe2->x)
1089 if (pe1->x == pe2->x)
1090 return pe1->y - pe2->y;
1097 compare_pe_device(const void *data1, const void *data2)
1098 { /* Compare coords of first item in list to cur coords */
1099 const Pointer_Event *pe1 = eina_list_data_get(eina_list_last(data1));
1100 const Pointer_Event *pe2 = data2;
1102 /* Only match if last was a down event */
1103 if ((pe1->event_type != EVAS_CALLBACK_MULTI_DOWN) &&
1104 (pe1->event_type != EVAS_CALLBACK_MOUSE_DOWN))
1108 if (pe1->device == pe2->device)
1110 else if (pe1->device < pe2->device)
1117 _record_pointer_event(Taps_Type *st, Eina_List *pe_list, Pointer_Event *pe,
1118 Widget_Data *wd, void *event_info, Evas_Callback_Type event_type)
1119 { /* Keep copy of pe and record it in list */
1120 Pointer_Event *p = malloc(sizeof(Pointer_Event));
1121 memcpy(p, pe, sizeof(Pointer_Event));
1122 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_NONE);
1128 /* This will also update middle-point to report to user later */
1129 st->info.x = st->sum_x / st->n_taps;
1130 st->info.y = st->sum_y / st->n_taps;
1131 st->info.timestamp = pe->timestamp;
1135 pe_list = eina_list_append(pe_list, p);
1136 st->l = eina_list_append(st->l, pe_list);
1139 pe_list = eina_list_append(pe_list, p);
1147 * This function sets state a tap-gesture to END or ABORT
1149 * @param data gesture info pointer
1151 * @ingroup Elm_Gesture_Layer
1154 _tap_gesture_finish(void *data)
1155 { /* This function will test each tap gesture when timer expires */
1156 Gesture_Info *gesture = data;
1157 Elm_Gesture_State s = ELM_GESTURE_STATE_END;
1158 /* Here we check if taps-gesture was completed successfuly */
1159 /* Count how many taps were recieved on each device then */
1160 /* determine if it matches n_taps_needed defined on START */
1161 Taps_Type *st = gesture->data;
1164 EINA_LIST_FOREACH(st->l, l, pe_list)
1166 if (eina_list_count(pe_list) != st->n_taps_needed)
1167 { /* No match taps number on device, ABORT */
1168 s = ELM_GESTURE_STATE_ABORT;
1173 st->info.n = eina_list_count(st->l);
1174 _set_state(gesture, s, gesture->info, EINA_FALSE);
1175 _tap_gestures_test_reset(gesture);
1181 * when this timer expires we finish tap gestures.
1183 * @param data The gesture-layer object.
1184 * @return cancles callback for this timer.
1186 * @ingroup Elm_Gesture_Layer
1189 _multi_tap_timeout(void *data)
1191 Widget_Data *wd = elm_widget_data_get(data);
1192 if (!wd) return EINA_FALSE;
1194 if (IS_TESTED(ELM_GESTURE_N_TAPS))
1195 _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TAPS]);
1197 if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
1198 _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
1200 if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
1201 _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
1203 _clear_if_finished(data);
1204 wd->dbl_timeout = NULL;
1205 return ECORE_CALLBACK_CANCEL;
1211 * when this timer expires we START long tap gesture
1213 * @param data The gesture-layer object.
1214 * @return cancles callback for this timer.
1216 * @ingroup Elm_Gesture_Layer
1219 _long_tap_timeout(void *data)
1221 Gesture_Info *gesture = data;
1222 Long_Tap_Type *st = gesture->data;
1225 _set_state(gesture, ELM_GESTURE_STATE_START,
1226 gesture->data, EINA_FALSE);
1228 return ECORE_CALLBACK_CANCEL;
1235 * This function checks if a tap gesture should start
1237 * @param wd Gesture Layer Widget Data.
1238 * @param pe The recent input event as stored in pe struct.
1239 * @param event_info Original input event pointer.
1240 * @param event_type Type of original input event.
1241 * @param gesture what gesture is tested
1242 * @param how many taps for this gesture (1, 2 or 3)
1244 * @return Flag to determine if we need to set a timer for finish
1246 * @ingroup Elm_Gesture_Layer
1249 _tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
1250 void *event_info, Evas_Callback_Type event_type,
1251 Gesture_Info *gesture, int taps)
1252 { /* Here we fill Tap struct */
1253 Taps_Type *st = gesture->data;
1255 { /* Allocated once on first time */
1256 st = calloc(1, sizeof(Taps_Type));
1258 _tap_gestures_test_reset(gesture);
1261 Eina_List *pe_list = NULL;
1262 Pointer_Event *pe_down = NULL;
1263 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1264 switch (pe->event_type)
1266 case EVAS_CALLBACK_MULTI_DOWN:
1267 case EVAS_CALLBACK_MOUSE_DOWN:
1268 pe_list = eina_list_search_unsorted(st->l, compare_match_fingers, pe);
1269 pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
1270 if ((pe->device == 0) && (eina_list_count(pe_list) == 1))
1271 { /* This is the first mouse down we got */
1272 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
1273 &st->info, EINA_FALSE);
1274 consume_event(wd, event_info, event_type, ev_flag);
1276 st->n_taps_needed = taps * 2; /* count DOWN and UP */
1283 case EVAS_CALLBACK_MULTI_UP:
1284 case EVAS_CALLBACK_MOUSE_UP:
1285 pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
1289 pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
1292 case EVAS_CALLBACK_MULTI_MOVE:
1293 case EVAS_CALLBACK_MOUSE_MOVE:
1294 /* Get first event in first list, this has to be a Mouse Down event */
1295 /* and verify that user didn't move out of this area before next tap */
1296 pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
1299 pe_down = eina_list_data_get(pe_list);
1300 if (!_inside(pe_down->x, pe_down->y, pe->x, pe->y))
1302 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1303 &st->info, EINA_FALSE);
1304 consume_event(wd, event_info, event_type, ev_flag);
1320 * This function checks all click/tap and double/triple taps
1322 * @param obj The gesture-layer object.
1323 * @param pe The recent input event as stored in pe struct.
1324 * @param event_info Original input event pointer.
1325 * @param event_type Type of original input event.
1327 * @ingroup Elm_Gesture_Layer
1330 _tap_gestures_test(Evas_Object *obj, Pointer_Event *pe,
1331 void *event_info, Evas_Callback_Type event_type)
1332 { /* Here we fill Recent_Taps struct and fire-up click/tap timers */
1333 Eina_Bool need_timer = EINA_FALSE;
1334 Widget_Data *wd = elm_widget_data_get(obj);
1337 if (!pe) /* this happens when unhandled event arrived */
1338 return; /* see _make_pointer_event function */
1340 if (IS_TESTED(ELM_GESTURE_N_TAPS))
1341 need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
1342 wd->gesture[ELM_GESTURE_N_TAPS], 1);
1344 if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
1345 need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
1346 wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS], 2);
1348 if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
1349 need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
1350 wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS], 3);
1352 if ((need_timer) && (!wd->dbl_timeout))
1353 { /* Set a timer to finish these gestures */
1354 wd->dbl_timeout = ecore_timer_add(0.4, _multi_tap_timeout,
1362 * This function computes center-point for long-tap gesture
1364 * @param st Long Tap gesture info pointer
1365 * @param pe The recent input event as stored in pe struct.
1367 * @ingroup Elm_Gesture_Layer
1370 _compute_taps_center(Long_Tap_Type *st,
1371 Evas_Coord *x_out, Evas_Coord *y_out, Pointer_Event *pe)
1373 if(!eina_list_count(st->touched))
1378 Evas_Coord x = 0, y = 0;
1379 EINA_LIST_FOREACH(st->touched, l, p)
1380 { /* Accumulate all then take avarage */
1381 if (p->device == pe->device)
1382 { /* This will take care of values coming from MOVE event */
1393 *x_out = x / eina_list_count(st->touched);
1394 *y_out = y / eina_list_count(st->touched);
1400 * This function checks N long-tap gesture.
1402 * @param obj The gesture-layer object.
1403 * @param pe The recent input event as stored in pe struct.
1404 * @param event_info Original input event pointer.
1405 * @param event_type Type of original input event.
1406 * @param g_type what Gesture we are testing.
1407 * @param taps How many click/taps we test for.
1409 * @ingroup Elm_Gesture_Layer
1412 _n_long_tap_test(Evas_Object *obj, Pointer_Event *pe,
1413 void *event_info, Evas_Callback_Type event_type,
1414 Elm_Gesture_Types g_type)
1415 { /* Here we fill Recent_Taps struct and fire-up click/tap timers */
1416 Widget_Data *wd = elm_widget_data_get(obj);
1419 if (!pe) /* this happens when unhandled event arrived */
1420 return; /* see _make_pointer_event function */
1421 Gesture_Info *gesture = wd->gesture[g_type];
1422 if (!gesture) return;
1424 Long_Tap_Type *st = gesture->data;
1426 { /* Allocated once on first time */
1427 st = calloc(1, sizeof(Long_Tap_Type));
1429 _n_long_tap_test_reset(gesture);
1432 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1433 switch (pe->event_type)
1435 case EVAS_CALLBACK_MULTI_DOWN:
1436 case EVAS_CALLBACK_MOUSE_DOWN:
1437 st->touched = _add_touched_device(st->touched, pe);
1438 st->info.n = eina_list_count(st->touched);
1439 if (st->info.n > st->max_touched)
1440 st->max_touched = st->info.n;
1442 { /* User removed finger from touch, then put back - ABORT */
1443 if ((gesture->state == ELM_GESTURE_STATE_START) ||
1444 (gesture->state == ELM_GESTURE_STATE_MOVE))
1446 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_ABORT,
1447 &st->info, EINA_FALSE);
1448 consume_event(wd, event_info, event_type, ev_flag);
1452 if ((pe->device == 0) && (eina_list_count(st->touched) == 1))
1453 { /* This is the first mouse down we got */
1454 st->info.timestamp = pe->timestamp;
1456 /* To test long tap */
1457 /* When this timer expires, gesture STARTED */
1459 st->timeout = ecore_timer_add(wd->long_tap_start_timeout,
1460 _long_tap_timeout, gesture);
1463 consume_event(wd, event_info, event_type, ev_flag);
1464 _compute_taps_center(st, &st->info.x, &st->info.y, pe);
1465 st->center_x = st->info.x;
1466 st->center_y = st->info.y;
1469 case EVAS_CALLBACK_MULTI_UP:
1470 case EVAS_CALLBACK_MOUSE_UP:
1471 st->touched = _remove_touched_device(st->touched, pe);
1472 _compute_taps_center(st, &st->center_x, &st->center_y, pe);
1474 ((gesture->state == ELM_GESTURE_STATE_START) ||
1475 (gesture->state == ELM_GESTURE_STATE_MOVE)))
1476 { /* Report END only for gesture that STARTed */
1477 if (eina_list_count(st->touched) == 0)
1478 { /* Report END only at last release event */
1479 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_END,
1480 &st->info, EINA_FALSE);
1481 consume_event(wd, event_info, event_type, ev_flag);
1485 { /* Stop test, user lifts finger before long-start */
1486 if (st->timeout) ecore_timer_del(st->timeout);
1488 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_ABORT,
1489 &st->info, EINA_FALSE);
1490 consume_event(wd, event_info, event_type, ev_flag);
1495 case EVAS_CALLBACK_MULTI_MOVE:
1496 case EVAS_CALLBACK_MOUSE_MOVE:
1498 ((gesture->state == ELM_GESTURE_STATE_START) ||
1499 (gesture->state == ELM_GESTURE_STATE_MOVE)))
1500 { /* Report MOVE only if STARTED */
1503 Elm_Gesture_State state_to_report = ELM_GESTURE_STATE_MOVE;
1505 _compute_taps_center(st, &x, &y, pe);
1506 /* ABORT if user moved fingers out of tap area */
1507 #if defined(DEBUG_GESTURE_LAYER)
1508 printf("%s x,y=(%d,%d) st->info.x,st->info.y=(%d,%d)\n",__func__,x,y,st->info.x,st->info.y);
1510 if (!_inside(x, y, st->center_x, st->center_y))
1511 state_to_report = ELM_GESTURE_STATE_ABORT;
1513 /* Report MOVE if gesture started */
1514 ev_flag = _set_state(gesture, state_to_report,
1515 &st->info, EINA_TRUE);
1516 consume_event(wd, event_info, event_type, ev_flag);
1528 * This function computes momentum for MOMENTUM, LINE and FLICK gestures
1529 * This momentum value will be sent to widget when gesture is completed.
1531 * @param momentum pointer to buffer where we record momentum value.
1532 * @param x1 x coord where user started gesture.
1533 * @param y1 y coord where user started gesture.
1534 * @param x2 x coord where user completed gesture.
1535 * @param y2 y coord where user completed gesture.
1536 * @param t1x timestamp for X, when user started gesture.
1537 * @param t1y timestamp for Y, when user started gesture.
1538 * @param t2 timestamp when user completed gesture.
1540 * @ingroup Elm_Gesture_Layer
1543 _set_momentum(Elm_Gesture_Momentum_Info *momentum, Evas_Coord x1, Evas_Coord y1,
1544 Evas_Coord x2, Evas_Coord y2, unsigned int t1x, unsigned int t1y,
1547 Evas_Coord velx = 0, vely = 0, vel;
1548 Evas_Coord dx = x2 - x1;
1549 Evas_Coord dy = y2 - y1;
1553 velx = (dx * 1000) / dtx;
1556 vely = (dy * 1000) / dty;
1558 vel = sqrt((velx * velx) + (vely * vely));
1560 if ((_elm_config->thumbscroll_friction > 0.0) &&
1561 (vel > _elm_config->thumbscroll_momentum_threshold))
1562 { /* report momentum */
1563 momentum->mx = velx;
1564 momentum->my = vely;
1576 * This function is used for computing rotation angle (DEG).
1578 * @param x1 first finger x location.
1579 * @param y1 first finger y location.
1580 * @param x2 second finger x location.
1581 * @param y2 second finger y location.
1583 * @return angle of the line between (x1,y1), (x2,y2) in Radians.
1585 * @ingroup Elm_Gesture_Layer
1588 get_angle(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
1594 if (((int) xx) && ((int) yy))
1601 return RAD_360DEG - a;
1612 return RAD_180DEG + a;
1616 return RAD_180DEG - a;
1622 { /* Horizontal line */
1647 * This function is used for computing the magnitude and direction
1648 * of vector between two points.
1650 * @param x1 first finger x location.
1651 * @param y1 first finger y location.
1652 * @param x2 second finger x location.
1653 * @param y2 second finger y location.
1654 * @param l length computed (output)
1655 * @param a angle computed (output)
1657 * @ingroup Elm_Gesture_Layer
1660 get_vector(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2,
1661 Evas_Coord *l, double *a)
1666 *l = (Evas_Coord) sqrt(xx*xx + yy*yy);
1667 *a = get_angle(x1, y1, x2, y2);
1671 _get_direction(Evas_Coord x1, Evas_Coord x2)
1683 * This function tests momentum gesture.
1684 * @param obj The gesture-layer object.
1685 * @param pe The recent input event as stored in pe struct.
1686 * @param event_info recent input event.
1687 * @param event_type recent event type.
1688 * @param g_type what Gesture we are testing.
1690 * @ingroup Elm_Gesture_Layer
1693 _momentum_test(Evas_Object *obj, Pointer_Event *pe,
1694 void *event_info, Evas_Callback_Type event_type,
1695 Elm_Gesture_Types g_type)
1697 Widget_Data *wd = elm_widget_data_get(obj);
1699 Gesture_Info *gesture = wd->gesture[g_type];
1700 if (!gesture ) return;
1702 Momentum_Type *st = gesture->data;
1703 Elm_Gesture_State state_to_report = ELM_GESTURE_STATE_MOVE;
1705 { /* Allocated once on first time */
1706 st = calloc(1, sizeof(Momentum_Type));
1708 _momentum_test_reset(gesture);
1714 /* First make avarage of all touched devices to determine center point */
1717 Pointer_Event pe_local = *pe; /* Copy pe event info to local */
1718 unsigned int cnt = 1; /* We start counter counting current pe event */
1719 EINA_LIST_FOREACH(wd->touched, l, p)
1720 if (p->device != pe_local.device)
1728 /* Compute avarage to get center point */
1732 /* If user added finger - reset gesture */
1733 if ((st->info.n) && (st->info.n < cnt))
1734 state_to_report = ELM_GESTURE_STATE_ABORT;
1736 if (st->info.n < cnt)
1739 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1742 case EVAS_CALLBACK_MOUSE_DOWN:
1743 case EVAS_CALLBACK_MULTI_DOWN:
1744 case EVAS_CALLBACK_MOUSE_MOVE:
1745 case EVAS_CALLBACK_MULTI_MOVE:
1748 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
1749 (event_type == EVAS_CALLBACK_MULTI_DOWN) ||
1750 (wd->glayer_continues_enable)) /* start also on MOVE */
1751 { /* We start on MOVE when cont-enabled only */
1752 st->line_st.x = st->line_end.x = pe_local.x;
1753 st->line_st.y = st->line_end.y = pe_local.y;
1754 st->t_st_x = st->t_st_y = st->t_end = pe_local.timestamp;
1755 st->xdir = st->ydir = 0;
1756 st->info.x2 = st->info.x1 = pe_local.x;
1757 st->info.y2 = st->info.y1 = pe_local.y;
1758 st->info.tx = st->info.ty = pe_local.timestamp;
1759 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
1760 &st->info, EINA_FALSE);
1761 consume_event(wd, event_info, event_type, ev_flag);
1768 /* ABORT gesture if got DOWN or MOVE event after UP+timeout */
1770 ((st->t_up + ELM_GESTURE_MULTI_TIMEOUT) < pe_local.timestamp))
1771 state_to_report = ELM_GESTURE_STATE_ABORT;
1773 if ((pe_local.timestamp - ELM_GESTURE_MOMENTUM_TIMEOUT) > st->t_end)
1774 { /* Too long of a wait, reset all values */
1775 st->line_st.x = pe_local.x;
1776 st->line_st.y = pe_local.y;
1777 st->t_st_y = st->t_st_x = pe_local.timestamp;
1778 st->info.tx = st->t_st_x;
1779 st->info.ty = st->t_st_y;
1780 st->xdir = st->ydir = 0;
1785 xdir = _get_direction(st->line_st.x, pe_local.x);
1786 ydir = _get_direction(st->line_st.y, pe_local.y);
1787 if (!xdir || (xdir == (-st->xdir)))
1789 st->line_st.x = st->line_end.x;
1790 st->info.tx = st->t_st_x = st->t_end;
1794 if (!ydir || (ydir == (-st->ydir)))
1796 st->line_st.y = st->line_end.y;
1797 st->info.ty = st->t_st_y = st->t_end;
1802 st->info.x2 = st->line_end.x = pe_local.x;
1803 st->info.y2 = st->line_end.y = pe_local.y;
1804 st->t_end = pe_local.timestamp;
1805 _set_momentum(&st->info, st->line_st.x, st->line_st.y, pe_local.x, pe_local.y,
1806 st->t_st_x, st->t_st_y, pe_local.timestamp);
1807 ev_flag = _set_state(gesture, state_to_report, &st->info,
1809 consume_event(wd, event_info, event_type, ev_flag);
1813 case EVAS_CALLBACK_MOUSE_UP:
1814 case EVAS_CALLBACK_MULTI_UP:
1815 st->t_up = pe_local.timestamp; /* Record recent up event time */
1816 if ((cnt > 1) || /* Ignore if more fingers touch surface */
1817 (!st->t_st_x)) /* IGNORE if info was cleared, long press,move */
1820 if ((pe_local.timestamp - ELM_GESTURE_MOMENTUM_TIMEOUT) > st->t_end)
1821 { /* Too long of a wait, reset all values */
1822 st->line_st.x = pe_local.x;
1823 st->line_st.y = pe_local.y;
1824 st->t_st_y = st->t_st_x = pe_local.timestamp;
1825 st->xdir = st->ydir = 0;
1828 st->info.x2 = pe_local.x;
1829 st->info.y2 = pe_local.y;
1830 st->line_end.x = pe_local.x;
1831 st->line_end.y = pe_local.y;
1832 st->t_end = pe_local.timestamp;
1834 _set_momentum(&st->info, st->line_st.x, st->line_st.y, pe_local.x, pe_local.y,
1835 st->t_st_x, st->t_st_y, pe_local.timestamp);
1837 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END, &st->info,
1839 consume_event(wd, event_info, event_type, ev_flag);
1848 compare_line_device(const void *data1, const void *data2)
1849 { /* Compare device component of line struct */
1850 const Line_Data *ln1 = data1;
1851 const int *device = data2;
1853 if (ln1->t_st) /* Compare only with lines that started */
1854 return (ln1->device - (*device));
1862 * This function construct line struct from input.
1863 * @param info pointer to store line momentum.
1864 * @param st line info to store input data.
1865 * @param pe The recent input event as stored in pe struct.
1867 * @ingroup Elm_Gesture_Layer
1870 _single_line_process(Elm_Gesture_Line_Info *info, Line_Data *st,
1871 Pointer_Event *pe, Evas_Callback_Type event_type)
1872 { /* Record events and set momentum for line pointed by st */
1878 case EVAS_CALLBACK_MOUSE_DOWN:
1879 case EVAS_CALLBACK_MOUSE_MOVE:
1880 case EVAS_CALLBACK_MULTI_DOWN:
1881 case EVAS_CALLBACK_MULTI_MOVE:
1883 { /* This happens only when line starts */
1884 st->line_st.x = pe->x;
1885 st->line_st.y = pe->y;
1886 st->t_st = pe->timestamp;
1887 st->device = pe->device;
1888 info->momentum.x1 = pe->x;
1889 info->momentum.y1 = pe->y;
1890 info->momentum.tx = pe->timestamp;
1891 info->momentum.ty = pe->timestamp;
1898 case EVAS_CALLBACK_MOUSE_UP:
1899 case EVAS_CALLBACK_MULTI_UP:
1900 /* IGNORE if line info was cleared, like long press, move */
1904 st->line_end.x = pe->x;
1905 st->line_end.y = pe->y;
1906 st->t_end = pe->timestamp;
1915 _line_data_reset(st);
1919 info->momentum.x2 = pe->x;
1920 info->momentum.y2 = pe->y;
1921 _set_momentum(&info->momentum, st->line_st.x, st->line_st.y, pe->x, pe->y,
1922 st->t_st, st->t_st, pe->timestamp);
1930 * This function test for (n) line gesture.
1931 * @param obj The gesture-layer object.
1932 * @param pe The recent input event as stored in pe struct.
1933 * @param event_info Original input event pointer.
1934 * @param event_type Type of original input event.
1935 * @param g_type what Gesture we are testing.
1937 * @ingroup Elm_Gesture_Layer
1940 _n_line_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
1941 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
1945 Widget_Data *wd = elm_widget_data_get(obj);
1947 Gesture_Info *gesture = wd->gesture[g_type];
1948 if (!gesture ) return;
1950 Line_Type *st = gesture->data;
1953 st = calloc(1, sizeof(Line_Type));
1957 Line_Data *line = NULL;
1958 Eina_List *list = st->list;
1959 unsigned cnt = eina_list_count(list);
1962 { /* list is not empty, locate this device on list */
1963 line = (Line_Data *) eina_list_search_unsorted(st->list,
1964 compare_line_device, &pe->device);
1968 { /* List is empty or device not found, new line-struct on START only */
1969 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
1970 (event_type == EVAS_CALLBACK_MULTI_DOWN) ||
1971 ((wd->glayer_continues_enable) && /* START on MOVE also */
1972 ((event_type == EVAS_CALLBACK_MOUSE_MOVE) ||
1973 (event_type == EVAS_CALLBACK_MULTI_MOVE))))
1974 { /* Allocate new item on START only */
1975 line = calloc(1, sizeof(Line_Data));
1976 _line_data_reset(line);
1977 list = eina_list_append(list, line);
1982 if (!line) /* This may happen on MOVE that comes before DOWN */
1983 return; /* No line-struct to work with, can't continue testing */
1985 if (_single_line_process(&st->info, line, pe, event_type)) /* update st with input */
1986 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_NONE);
1988 /* Get direction and magnitude of the line */
1990 get_vector(line->line_st.x, line->line_st.y, pe->x, pe->y,
1991 &line->line_length, &angle);
1993 /* These are used later to compare lines length */
1994 Evas_Coord shortest_line_len = line->line_length;
1995 Evas_Coord longest_line_len = line->line_length;
1996 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1998 /* Now update line-state */
2000 { /* Analyze line only if line started */
2001 if (line->line_angle >= 0.0)
2002 { /* if line direction was set, we test if broke tolerance */
2003 double a = fabs(angle - line->line_angle);
2005 double d = (tan(a)) * line->line_length; /* Distance from line */
2006 #if defined(DEBUG_GESTURE_LAYER)
2007 printf("%s a=<%f> d=<%f>\n", __func__, (a * 57.295779513), d);
2009 if ((d > wd->line_distance_tolerance) || (a > wd->line_angular_tolerance))
2010 { /* Broke tolerance: abort line and start a new one */
2011 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2012 &st->info, EINA_FALSE);
2013 consume_event(wd, event_info, event_type, ev_flag);
2017 if (wd->glayer_continues_enable)
2018 { /* We may finish line if momentum is zero */
2019 /* This is for continues-gesture */
2020 if ((!st->info.momentum.mx) && (!st->info.momentum.my))
2021 { /* Finish line on zero momentum for continues gesture */
2022 line->line_end.x = pe->x;
2023 line->line_end.y = pe->y;
2024 line->t_end = pe->timestamp;
2029 { /* Record the line angle as it broke minimum length for line */
2030 if (line->line_length >= wd->line_min_length)
2031 st->info.angle = line->line_angle = angle;
2037 if (line->line_angle < 0.0)
2038 { /* it's not a line, too short more close to a tap */
2039 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2040 &st->info, EINA_FALSE);
2041 consume_event(wd, event_info, event_type, ev_flag);
2047 /* Count how many lines already started / ended */
2050 unsigned int tm_start = pe->timestamp;
2051 unsigned int tm_end = pe->timestamp;
2054 double base_angle = ELM_GESTURE_NEGATIVE_ANGLE;
2055 Eina_Bool lines_parallel = EINA_TRUE;
2056 EINA_LIST_FOREACH(list, l, t_line)
2059 base_angle = t_line->line_angle;
2062 if (t_line->line_angle >= 0)
2063 { /* Compare angle only with lines with direction defined */
2064 if (fabs(base_angle - t_line->line_angle) >
2065 wd->line_angular_tolerance)
2066 lines_parallel = EINA_FALSE;
2070 if (t_line->line_length)
2071 { /* update only if this line is used */
2072 if (shortest_line_len > t_line->line_length)
2073 shortest_line_len = t_line->line_length;
2075 if (longest_line_len < t_line->line_length)
2076 longest_line_len = t_line->line_length;
2082 if (t_line->t_st < tm_start)
2083 tm_start = t_line->t_st;
2089 if (t_line->t_end < tm_end)
2090 tm_end = t_line->t_end;
2094 st->info.momentum.n = started;
2098 ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
2099 (event_type == EVAS_CALLBACK_MULTI_DOWN)))
2100 { /* user lift one finger then starts again without line-end - ABORT */
2101 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2103 consume_event(wd, event_info, event_type, ev_flag);
2107 if (!lines_parallel)
2108 { /* Lines are NOT at same direction, abort this gesture */
2109 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2111 consume_event(wd, event_info, event_type, ev_flag);
2116 /* We report ABORT if lines length are NOT matching when fingers are up */
2117 if ((longest_line_len - shortest_line_len) > (elm_finger_size_get()*2))
2119 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2121 consume_event(wd, event_info, event_type, ev_flag);
2125 if ((g_type == ELM_GESTURE_N_FLICKS) && ((tm_end - tm_start) > wd->flick_time_limit_ms))
2126 { /* We consider FLICK as a fast line.ABORT if take too long to finish */
2127 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2129 consume_event(wd, event_info, event_type, ev_flag);
2135 case EVAS_CALLBACK_MOUSE_UP:
2136 case EVAS_CALLBACK_MULTI_UP:
2137 if ((started) && (started == ended))
2139 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2140 &st->info, EINA_FALSE);
2141 consume_event(wd, event_info, event_type, ev_flag);
2146 case EVAS_CALLBACK_MOUSE_DOWN:
2147 case EVAS_CALLBACK_MULTI_DOWN:
2148 case EVAS_CALLBACK_MOUSE_MOVE:
2149 case EVAS_CALLBACK_MULTI_MOVE:
2152 if (wd->glayer_continues_enable && (started == ended))
2153 { /* For continues gesture */
2154 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2155 &st->info, EINA_FALSE);
2156 consume_event(wd, event_info, event_type, ev_flag);
2159 { /* When continues, may START on MOVE event too */
2160 Elm_Gesture_State s = ELM_GESTURE_STATE_MOVE;
2162 /* This happens when: on n > 1 lines then one finger up */
2163 /* caused abort, then put finger down. */
2164 /* This will stop line from starting again. */
2165 /* Number of lines, MUST match touched-device in list */
2166 if ((!wd->glayer_continues_enable) &&
2167 (eina_list_count(st->list) < eina_list_count(wd->touched)))
2168 s = ELM_GESTURE_STATE_ABORT;
2170 if (gesture->state == ELM_GESTURE_STATE_UNDEFINED)
2171 s = ELM_GESTURE_STATE_START;
2173 ev_flag = _set_state(gesture, s, &st->info, EINA_TRUE);
2174 consume_event(wd, event_info, event_type, ev_flag);
2180 return; /* Unhandeld event type */
2187 * This function is used to check if rotation gesture started.
2188 * @param st Contains current rotation values from user input.
2189 * @return TRUE/FALSE if we need to set rotation START.
2191 * @ingroup Elm_Gesture_Layer
2194 rotation_broke_tolerance(Rotate_Type *st)
2196 if (st->info.base_angle < 0)
2197 return EINA_FALSE; /* Angle has to be computed first */
2199 if (st->rotate_angular_tolerance < 0)
2202 double low = st->info.base_angle - st->rotate_angular_tolerance;
2203 double high = st->info.base_angle + st->rotate_angular_tolerance;
2204 double t = st->info.angle;
2217 if (high > RAD_360DEG)
2228 #if defined(DEBUG_GESTURE_LAYER)
2229 printf("%s angle=<%f> low=<%f> high=<%f>\n", __func__, t, low, high);
2231 if ((t < low) || (t > high))
2232 { /* This marks that roation action has started */
2233 st->rotate_angular_tolerance = ELM_GESTURE_NEGATIVE_ANGLE;
2234 st->info.base_angle = st->info.angle; /* Avoid jump in angle value */
2244 * This function is used for computing the gap between fingers.
2245 * It returns the length and center point between fingers.
2247 * @param x1 first finger x location.
2248 * @param y1 first finger y location.
2249 * @param x2 second finger x location.
2250 * @param y2 second finger y location.
2251 * @param x Gets center point x cord (output)
2252 * @param y Gets center point y cord (output)
2254 * @return length of the line between (x1,y1), (x2,y2) in pixels.
2256 * @ingroup Elm_Gesture_Layer
2259 get_finger_gap_length(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2,
2260 Evas_Coord y2, Evas_Coord *x, Evas_Coord *y)
2262 double a, b, xx, yy, gap;
2265 gap = sqrt(xx*xx + yy*yy);
2267 /* START - Compute zoom center point */
2268 /* The triangle defined as follows:
2276 * http://en.wikipedia.org/wiki/Trigonometric_functions
2277 *************************************/
2278 if (((int) xx) && ((int) yy))
2280 double A = atan((yy / xx));
2281 #if defined(DEBUG_GESTURE_LAYER)
2282 printf("xx=<%f> yy=<%f> A=<%f>\n", xx, yy, A);
2284 a = (Evas_Coord) ((gap / 2) * sin(A));
2285 b = (Evas_Coord) ((gap / 2) * cos(A));
2286 *x = (Evas_Coord) ((x2 > x1) ? (x1 + b) : (x2 + b));
2287 *y = (Evas_Coord) ((y2 > y1) ? (y1 + a) : (y2 + a));
2292 { /* horiz line, take half width */
2293 #if defined(DEBUG_GESTURE_LAYER)
2294 printf("==== HORIZ ====\n");
2296 *x = (Evas_Coord) (xx / 2);
2297 *y = (Evas_Coord) (y1);
2301 { /* vert line, take half width */
2302 #if defined(DEBUG_GESTURE_LAYER)
2303 printf("==== VERT ====\n");
2305 *x = (Evas_Coord) (x1);
2306 *y = (Evas_Coord) (yy / 2);
2309 /* END - Compute zoom center point */
2311 return (Evas_Coord) gap;
2317 * This function is used for computing zoom value.
2319 * @param st Pointer to zoom data based on user input.
2320 * @param x1 first finger x location.
2321 * @param y1 first finger y location.
2322 * @param x2 second finger x location.
2323 * @param y2 second finger y location.
2324 * @param factor zoom-factor, used to determine how fast zoom works.
2326 * @return zoom value, when 1.0 means no zoom, 0.5 half size...
2328 * @ingroup Elm_Gesture_Layer
2330 /* FIXME change float to double */
2332 compute_zoom(Zoom_Type *st, Evas_Coord x1, Evas_Coord y1, unsigned int tm1,
2333 Evas_Coord x2, Evas_Coord y2, unsigned int tm2, double zoom_finger_factor)
2336 Evas_Coord diam = get_finger_gap_length(x1, y1, x2, y2,
2337 &st->info.x, &st->info.y);
2339 st->info.radius = diam / 2;
2343 st->zoom_base = diam;
2344 return st->info.zoom;
2347 if (st->zoom_distance_tolerance)
2348 { /* zoom tolerance <> ZERO, means zoom action NOT started yet */
2349 if (diam < (st->zoom_base - st->zoom_distance_tolerance))
2350 { /* avoid jump with zoom value when break tolerance */
2351 st->zoom_base -= st->zoom_distance_tolerance;
2352 st->zoom_distance_tolerance = 0;
2355 if (diam > (st->zoom_base + st->zoom_distance_tolerance))
2356 { /* avoid jump with zoom value when break tolerance */
2357 st->zoom_base += st->zoom_distance_tolerance;
2358 st->zoom_distance_tolerance = 0;
2364 /* We use factor only on the difference between gap-base */
2365 /* if gap=120, base=100, we get ((120-100)/100)=0.2*factor */
2366 rt = ((1.0) + ((((float) diam - (float) st->zoom_base) /
2367 (float) st->zoom_base) * zoom_finger_factor));
2370 /* Momentum: zoom per second: (NOT YET SUPPORTED) */
2371 st->info.momentum = (((rt - 1.0) * 1000) / (tm2 - tm1));
2382 * This function handles zoom with mouse wheel.
2383 * thats a combination of wheel + CTRL key.
2384 * @param obj The gesture-layer object.
2385 * @param event_info Original input event pointer.
2386 * @param event_type Type of original input event.
2387 * @param g_type what Gesture we are testing.
2389 * @ingroup Elm_Gesture_Layer
2392 _zoom_with_wheel_test(Evas_Object *obj, void *event_info,
2393 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2395 Widget_Data *wd = elm_widget_data_get(obj);
2397 if (!wd->gesture[g_type]) return;
2399 Gesture_Info *gesture_zoom = wd->gesture[g_type];
2400 Zoom_Type *st = gesture_zoom->data;
2401 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2403 { /* Allocated once on first time, used for zoom intermediate data */
2404 st = calloc(1, sizeof(Zoom_Type));
2405 gesture_zoom->data = st;
2406 _zoom_test_reset(gesture_zoom);
2411 case EVAS_CALLBACK_KEY_UP:
2413 Evas_Event_Key_Up *p = event_info;
2414 if ((!strcmp(p->keyname, "Control_L")) ||
2415 (!strcmp(p->keyname, "Control_R")))
2416 { /* Test if we ended a zoom gesture when releasing CTRL */
2417 if ((st->zoom_wheel) &&
2418 ((gesture_zoom->state == ELM_GESTURE_STATE_START) ||
2419 (gesture_zoom->state == ELM_GESTURE_STATE_MOVE)))
2420 { /* User released CTRL after zooming */
2421 ev_flag = _set_state(gesture_zoom,
2422 ELM_GESTURE_STATE_END, &st->info, EINA_FALSE);
2423 consume_event(wd, event_info, event_type, ev_flag);
2431 case EVAS_CALLBACK_MOUSE_WHEEL:
2434 Elm_Gesture_State s;
2435 if (!evas_key_modifier_is_set(
2436 ((Evas_Event_Mouse_Wheel *) event_info)->modifiers,
2438 { /* if using wheel witout CTRL after starting zoom */
2439 if ((st->zoom_wheel) &&
2440 ((gesture_zoom->state == ELM_GESTURE_STATE_START) ||
2441 (gesture_zoom->state == ELM_GESTURE_STATE_MOVE)))
2443 ev_flag = _set_state(gesture_zoom,
2444 ELM_GESTURE_STATE_END, &st->info, EINA_FALSE);
2445 consume_event(wd, event_info, event_type, ev_flag);
2450 return; /* Ignore mouse-wheel without control */
2453 /* Using mouse wheel with CTRL for zoom */
2454 if (st->zoom_wheel || (st->zoom_distance_tolerance == 0))
2455 { /* when (zoom_wheel == NULL) and (zoom_distance_tolerance == 0)
2456 we continue a zoom gesture */
2458 s = ELM_GESTURE_STATE_MOVE;
2461 { /* On first wheel event, report START */
2462 Evas_Modifier_Mask mask = evas_key_modifier_mask_get(
2463 evas_object_evas_get(wd->target), "Control");
2465 s = ELM_GESTURE_STATE_START;
2466 if (!evas_object_key_grab(wd->target, "Control_L", mask, 0, EINA_FALSE))
2467 ERR("Failed to Grabbed CTRL_L");
2468 if (!evas_object_key_grab(wd->target, "Control_R", mask, 0, EINA_FALSE))
2469 ERR("Failed to Grabbed CTRL_R");
2472 st->zoom_distance_tolerance = 0; /* Cancel tolerance */
2473 st->zoom_wheel = (Evas_Event_Mouse_Wheel *) event_info;
2474 st->info.x = st->zoom_wheel->canvas.x;
2475 st->info.y = st->zoom_wheel->canvas.y;
2477 if (st->zoom_wheel->z < 0) /* zoom in */
2478 st->info.zoom += (wd->zoom_finger_factor * wd->zoom_wheel_factor);
2480 if (st->zoom_wheel->z > 0) /* zoom out */
2481 st->info.zoom -= (wd->zoom_finger_factor * wd->zoom_wheel_factor);
2483 if (st->info.zoom < 0.0)
2484 st->info.zoom = 0.0;
2486 ev_flag = _set_state(gesture_zoom, s, &st->info, force);
2487 consume_event(wd, event_info, event_type, ev_flag);
2499 * This function is used to test zoom gesture.
2500 * user may combine zoom, rotation together.
2501 * so its possible that both will be detected from input.
2502 * (both are two-finger movement-oriented gestures)
2504 * @param obj The gesture-layer object.
2505 * @param event_info Pointer to recent input event.
2506 * @param event_type Recent input event type.
2507 * @param g_type what Gesture we are testing.
2509 * @ingroup Elm_Gesture_Layer
2512 _zoom_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2513 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2517 Widget_Data *wd = elm_widget_data_get(obj);
2519 if (!wd->gesture[g_type]) return;
2521 Gesture_Info *gesture_zoom = wd->gesture[g_type];
2522 Zoom_Type *st = gesture_zoom->data;
2525 { /* Allocated once on first time, used for zoom data */
2526 st = calloc(1, sizeof(Zoom_Type));
2527 gesture_zoom->data = st;
2528 _zoom_test_reset(gesture_zoom);
2532 /* Start - new zoom testing, letting all fingers start */
2533 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2536 case EVAS_CALLBACK_MOUSE_MOVE:
2537 case EVAS_CALLBACK_MULTI_MOVE:
2538 /* if non-continues mode and gesture NOT started, ignore MOVE */
2539 if ((!wd->glayer_continues_enable) &&
2540 (!st->zoom_st.timestamp))
2543 case EVAS_CALLBACK_MOUSE_DOWN:
2544 case EVAS_CALLBACK_MULTI_DOWN:
2545 { /* Here we take care of zoom-start and zoom move */
2549 if(eina_list_count(wd->touched) > 2)
2550 { /* Process zoom only when 2 fingers on surface */
2551 ev_flag = _set_state(gesture_zoom,
2552 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2553 consume_event(wd, event_info, event_type, ev_flag);
2558 if (!st->zoom_st.timestamp)
2559 { /* Now scan touched-devices list and find other finger */
2560 EINA_LIST_FOREACH(wd->touched, l, p)
2561 { /* Device of other finger <> pe device */
2562 if (p->device != pe->device)
2566 if (!p) /* Single finger on touch */
2569 /* Record down fingers */
2570 consume_event(wd, event_info, event_type, ev_flag);
2571 memcpy(&st->zoom_st, pe, sizeof(Pointer_Event));
2572 memcpy(&st->zoom_st1, p, sizeof(Pointer_Event));
2574 /* Set mv field as well to be ready for MOVE events */
2575 memcpy(&st->zoom_mv, pe, sizeof(Pointer_Event));
2576 memcpy(&st->zoom_mv1, p, sizeof(Pointer_Event));
2578 /* Here we have zoom_st, zoom_st1 set, report START */
2579 /* Set zoom-base after BOTH down events recorded */
2580 /* Compute length of line between fingers zoom start */
2581 st->info.zoom = 1.0;
2582 st->zoom_base = get_finger_gap_length(st->zoom_st1.x,
2583 st->zoom_st1.y, st->zoom_st.x, st->zoom_st.y,
2584 &st->info.x, &st->info.y);
2586 st->info.radius = st->zoom_base / 2;
2588 if ((gesture_zoom->state != ELM_GESTURE_STATE_START) &&
2589 (gesture_zoom->state != ELM_GESTURE_STATE_MOVE))
2590 { /* zoom started with mouse-wheel, don't report twice */
2591 ev_flag = _set_state(gesture_zoom,
2592 ELM_GESTURE_STATE_START, &st->info, EINA_FALSE);
2593 consume_event(wd, event_info, event_type, ev_flag);
2596 return; /* Zoom started */
2597 } /* End of ZOOM_START handling */
2600 /* if we got here, we have (exacally) two fingers on surfce */
2601 /* we also after START, report MOVE */
2602 /* First detect which finger moved */
2603 if (pe->device == st->zoom_mv.device)
2604 memcpy(&st->zoom_mv, pe, sizeof(Pointer_Event));
2605 else if (pe->device == st->zoom_mv1.device)
2606 memcpy(&st->zoom_mv1, pe, sizeof(Pointer_Event));
2608 /* Compute change in zoom as fingers move */
2609 st->info.zoom = compute_zoom(st,
2610 st->zoom_mv.x, st->zoom_mv.y, st->zoom_mv.timestamp,
2611 st->zoom_mv1.x, st->zoom_mv1.y, st->zoom_mv1.timestamp,
2612 wd->zoom_finger_factor);
2614 if (!st->zoom_distance_tolerance)
2615 { /* Zoom broke tolerance, report move */
2616 double d = st->info.zoom - st->next_step;
2620 if (d >= wd->zoom_step)
2621 { /* Report move in steps */
2622 st->next_step = st->info.zoom;
2624 ev_flag = _set_state(gesture_zoom,
2625 ELM_GESTURE_STATE_MOVE,
2626 &st->info, EINA_TRUE);
2627 consume_event(wd, event_info, event_type, ev_flag);
2629 } /* End of ZOOM_MOVE handling */
2634 case EVAS_CALLBACK_MOUSE_UP:
2635 case EVAS_CALLBACK_MULTI_UP:
2636 /* Reset timestamp of finger-up.This is used later
2637 by _zoom_test_reset() to retain finger-down data */
2638 consume_event(wd, event_info, event_type, ev_flag);
2639 if (((st->zoom_wheel) || (st->zoom_base)) &&
2640 (st->zoom_distance_tolerance == 0))
2642 ev_flag = _set_state(gesture_zoom, ELM_GESTURE_STATE_END,
2643 &st->info, EINA_FALSE);
2644 consume_event(wd, event_info, event_type, ev_flag);
2649 /* if we got here not a ZOOM */
2650 if (gesture_zoom->state != ELM_GESTURE_STATE_UNDEFINED)
2651 { /* Must be != undefined, if gesture started */
2652 ev_flag = _set_state(gesture_zoom,
2653 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2654 consume_event(wd, event_info, event_type, ev_flag);
2657 _zoom_test_reset(gesture_zoom);
2667 _get_rotate_properties(Rotate_Type *st,
2668 Evas_Coord x1, Evas_Coord y1, unsigned int tm1,
2669 Evas_Coord x2, Evas_Coord y2, unsigned int tm2,
2672 st->info.radius = get_finger_gap_length(x1, y1, x2, y2,
2673 &st->info.x, &st->info.y) / 2;
2675 *angle = get_angle(x1, y1, x2, y2);
2676 #if 0 /* (NOT YET SUPPORTED) */
2677 if (angle == &st->info.angle)
2678 { /* Compute momentum: TODO: bug when breaking 0, 360 values */
2679 st->info.momentum = (((*angle) - st->info.base_angle) /
2680 (fabs(tm2 - tm1))) * 1000;
2683 st->info.momentum = 0;
2693 * This function is used to test rotation gesture.
2694 * user may combine zoom, rotation together.
2695 * so its possible that both will be detected from input.
2696 * (both are two-finger movement-oriented gestures)
2698 * @param obj The gesture-layer object.
2699 * @param event_info Pointer to recent input event.
2700 * @param event_type Recent input event type.
2701 * @param g_type what Gesture we are testing.
2703 * @ingroup Elm_Gesture_Layer
2706 _rotate_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2707 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2712 Widget_Data *wd = elm_widget_data_get(obj);
2714 if (!wd->gesture[g_type]) return;
2716 Gesture_Info *gesture = wd->gesture[g_type];
2722 { /* Allocated once on first time */
2723 st = calloc(1, sizeof(Rotate_Type));
2725 _rotate_test_reset(gesture);
2729 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2732 case EVAS_CALLBACK_MOUSE_MOVE:
2733 case EVAS_CALLBACK_MULTI_MOVE:
2734 /* if non-continues mode and gesture NOT started, ignore MOVE */
2735 if ((!wd->glayer_continues_enable) &&
2736 (!st->rotate_st.timestamp))
2739 case EVAS_CALLBACK_MOUSE_DOWN:
2740 case EVAS_CALLBACK_MULTI_DOWN:
2741 { /* Here we take care of rotate-start and rotate move */
2745 if(eina_list_count(wd->touched) > 2)
2746 { /* Process rotate only when 2 fingers on surface */
2747 ev_flag = _set_state(gesture,
2748 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2749 consume_event(wd, event_info, event_type, ev_flag);
2754 if (!st->rotate_st.timestamp)
2755 { /* Now scan touched-devices list and find other finger */
2756 EINA_LIST_FOREACH(wd->touched, l, p)
2757 { /* Device of other finger <> pe device */
2758 if (p->device != pe->device)
2763 return; /* Single finger on touch */
2765 /* Record down fingers */
2766 consume_event(wd, event_info, event_type, ev_flag);
2767 memcpy(&st->rotate_st, pe, sizeof(Pointer_Event));
2768 memcpy(&st->rotate_st1, p, sizeof(Pointer_Event));
2770 /* Set mv field as well to be ready for MOVE events */
2771 memcpy(&st->rotate_mv, pe, sizeof(Pointer_Event));
2772 memcpy(&st->rotate_mv1, p, sizeof(Pointer_Event));
2774 /* Here we have rotate_st, rotate_st1 set, report START */
2775 /* Set rotate-base after BOTH down events recorded */
2776 /* Compute length of line between fingers rotate start */
2777 _get_rotate_properties(st,
2778 st->rotate_st.x, st->rotate_st.y,
2779 st->rotate_st.timestamp,
2780 st->rotate_st1.x, st->rotate_st1.y,
2781 st->rotate_st1.timestamp, &st->info.base_angle);
2783 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
2784 &st->info, EINA_FALSE);
2785 consume_event(wd, event_info, event_type, ev_flag);
2787 return; /* Rotate started */
2788 } /* End of ROTATE_START handling */
2791 /* if we got here, we have (exacally) two fingers on surfce */
2792 /* we also after START, report MOVE */
2793 /* First detect which finger moved */
2794 if (pe->device == st->rotate_mv.device)
2795 memcpy(&st->rotate_mv, pe, sizeof(Pointer_Event));
2796 else if (pe->device == st->rotate_mv1.device)
2797 memcpy(&st->rotate_mv1, pe, sizeof(Pointer_Event));
2799 /* Compute change in rotate as fingers move */
2800 _get_rotate_properties(st,
2801 st->rotate_mv.x, st->rotate_mv.y,
2802 st->rotate_mv.timestamp,
2803 st->rotate_mv1.x, st->rotate_mv1.y,
2804 st->rotate_mv1.timestamp, &st->info.angle);
2806 if (rotation_broke_tolerance(st))
2807 { /* Rotation broke tolerance, report move */
2808 double d = st->info.angle - st->next_step;
2812 if (d >= wd->rotate_step)
2813 { /* Report move in steps */
2814 st->next_step = st->info.angle;
2816 ev_flag = _set_state(gesture,
2817 ELM_GESTURE_STATE_MOVE, &st->info, EINA_TRUE);
2818 consume_event(wd, event_info, event_type, ev_flag);
2820 } /* End of ROTATE_MOVE handling */
2825 case EVAS_CALLBACK_MOUSE_UP:
2826 case EVAS_CALLBACK_MULTI_UP:
2827 consume_event(wd, event_info, event_type, ev_flag);
2828 /* Reset timestamp of finger-up.This is used later
2829 by rotate_test_reset() to retain finger-down data */
2830 if (st->rotate_angular_tolerance < 0)
2832 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2833 &st->info, EINA_FALSE);
2834 consume_event(wd, event_info, event_type, ev_flag);
2839 if (gesture->state != ELM_GESTURE_STATE_UNDEFINED)
2840 { /* Must be != undefined, if gesture started */
2841 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2842 &st->info, EINA_FALSE);
2843 consume_event(wd, event_info, event_type, ev_flag);
2846 _rotate_test_reset(gesture);
2857 * This function is used to save input events in an abstract struct
2858 * to be used later by getsure-testing functions.
2860 * @param data The gesture-layer object.
2861 * @param event_info Pointer to recent input event.
2862 * @param event_type Recent input event type.
2863 * @param pe The abstract data-struct (output).
2865 * @ingroup Elm_Gesture_Layer
2868 _make_pointer_event(void *data, void *event_info,
2869 Evas_Callback_Type event_type, Pointer_Event *pe)
2871 Widget_Data *wd = elm_widget_data_get(data);
2872 if (!wd) return EINA_FALSE;
2874 memset(pe, '\0', sizeof(*pe));
2877 case EVAS_CALLBACK_MOUSE_DOWN:
2878 pe->x = ((Evas_Event_Mouse_Down *) event_info)->canvas.x;
2879 pe->y = ((Evas_Event_Mouse_Down *) event_info)->canvas.y;
2880 pe->timestamp = ((Evas_Event_Mouse_Down *) event_info)->timestamp;
2881 pe->device = ELM_MOUSE_DEVICE;
2884 case EVAS_CALLBACK_MOUSE_UP:
2885 pe->x = ((Evas_Event_Mouse_Up *) event_info)->canvas.x;
2886 pe->y = ((Evas_Event_Mouse_Up *) event_info)->canvas.y;
2887 pe->timestamp = ((Evas_Event_Mouse_Up *) event_info)->timestamp;
2888 pe->device = ELM_MOUSE_DEVICE;
2891 case EVAS_CALLBACK_MOUSE_MOVE:
2892 pe->x = ((Evas_Event_Mouse_Move *) event_info)->cur.canvas.x;
2893 pe->y = ((Evas_Event_Mouse_Move *) event_info)->cur.canvas.y;
2894 pe->timestamp = ((Evas_Event_Mouse_Move *) event_info)->timestamp;
2895 pe->device = ELM_MOUSE_DEVICE;
2898 case EVAS_CALLBACK_MULTI_DOWN:
2899 pe->x = ((Evas_Event_Multi_Down *) event_info)->canvas.x;
2900 pe->y = ((Evas_Event_Multi_Down *) event_info)->canvas.y;
2901 pe->timestamp = ((Evas_Event_Multi_Down *) event_info)->timestamp;
2902 pe->device = ((Evas_Event_Multi_Down *) event_info)->device;
2905 case EVAS_CALLBACK_MULTI_UP:
2906 pe->x = ((Evas_Event_Multi_Up *) event_info)->canvas.x;
2907 pe->y = ((Evas_Event_Multi_Up *) event_info)->canvas.y;
2908 pe->timestamp = ((Evas_Event_Multi_Up *) event_info)->timestamp;
2909 pe->device = ((Evas_Event_Multi_Up *) event_info)->device;
2912 case EVAS_CALLBACK_MULTI_MOVE:
2913 pe->x = ((Evas_Event_Multi_Move *) event_info)->cur.canvas.x;
2914 pe->y = ((Evas_Event_Multi_Move *) event_info)->cur.canvas.y;
2915 pe->timestamp = ((Evas_Event_Multi_Move *) event_info)->timestamp;
2916 pe->device = ((Evas_Event_Multi_Move *) event_info)->device;
2923 pe->event_type = event_type;
2930 * This function restartes line, flick, zoom and rotate gestures
2931 * when gesture-layer continues-gestures enabled.
2932 * Example of continues-gesture:
2933 * When doing a line, user stops moving finger but keeps fingers on touch.
2934 * This will cause line-end, then as user continues moving his finger
2935 * it re-starts line gesture.
2936 * When continue mode is disabled, user has to lift finger from touch
2937 * to end a gesture. Them touch-again to start a new one.
2939 * @param data The gesture-layer object.
2940 * @param wd gesture layer widget data.
2941 * @param states_reset flag that marks gestures were reset in history clear.
2943 * @ingroup Elm_Gesture_Layer
2945 void continues_gestures_restart(void *data, Eina_Bool states_reset)
2947 Widget_Data *wd = elm_widget_data_get(data);
2950 /* Run through events to restart gestures */
2952 Eina_Bool n_momentum, n_lines, n_flicks, zoom, rotate;
2953 /* We turn-on flag for finished, aborted, not-started gestures */
2954 g = wd->gesture[ELM_GESTURE_MOMENTUM];
2955 n_momentum = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
2956 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
2959 _momentum_test_reset(wd->gesture[ELM_GESTURE_MOMENTUM]);
2960 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
2964 g = wd->gesture[ELM_GESTURE_N_LINES];
2965 n_lines = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
2966 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
2969 _line_test_reset(wd->gesture[ELM_GESTURE_N_LINES]);
2970 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
2974 g = wd->gesture[ELM_GESTURE_N_FLICKS];
2975 n_flicks = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
2976 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
2979 _line_test_reset(wd->gesture[ELM_GESTURE_N_FLICKS]);
2980 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
2984 g = wd->gesture[ELM_GESTURE_ZOOM];
2985 zoom = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
2986 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
2989 _zoom_test_reset(wd->gesture[ELM_GESTURE_ZOOM]);
2990 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
2994 g = wd->gesture[ELM_GESTURE_ROTATE];
2995 rotate = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
2996 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
2999 _rotate_test_reset(wd->gesture[ELM_GESTURE_ROTATE]);
3000 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3008 * This function the core-function where input handling is done.
3009 * Here we get user input and stream it to gesture testing.
3010 * We notify user about any gestures with new state:
3012 * START - gesture started.
3013 * MOVE - gesture is ongoing.
3014 * END - gesture was completed.
3015 * ABORT - gesture was aborted after START, MOVE (will NOT be completed)
3017 * We also check if a gesture was detected, then reset event history
3018 * If no gestures were found we reset gesture test flag
3019 * after streaming event-history to widget.
3020 * (stream to the widget all events not consumed as a gesture)
3022 * @param data The gesture-layer object.
3023 * @param event_info Pointer to recent input event.
3024 * @param event_type Recent input event type.
3026 * @ingroup Elm_Gesture_Layer
3029 _event_process(void *data, Evas_Object *obj __UNUSED__,
3030 void *event_info, Evas_Callback_Type event_type)
3033 Pointer_Event *pe = NULL;
3034 Widget_Data *wd = elm_widget_data_get(data);
3037 #if defined(DEBUG_GESTURE_LAYER)
3040 printf("Gesture | State | is tested\n");
3041 for(i = ELM_GESTURE_N_TAPS; i < ELM_GESTURE_LAST; i++)
3045 printf(" %d %d %d\n", i, g->state, g->test);
3049 /* Start testing candidate gesture from here */
3050 if (_make_pointer_event(data, event_info, event_type, &_pe))
3055 if (IS_TESTED(ELM_GESTURE_N_LONG_TAPS))
3056 _n_long_tap_test(data, pe, event_info, event_type,
3057 ELM_GESTURE_N_LONG_TAPS);
3059 /* This takes care of single, double and tripple tap */
3060 _tap_gestures_test(data, pe, event_info, event_type);
3062 if (IS_TESTED(ELM_GESTURE_MOMENTUM))
3063 _momentum_test(data, pe, event_info, event_type,
3064 ELM_GESTURE_MOMENTUM);
3066 if (IS_TESTED(ELM_GESTURE_N_LINES))
3067 _n_line_test(data, pe, event_info, event_type, ELM_GESTURE_N_LINES);
3069 if (IS_TESTED(ELM_GESTURE_N_FLICKS))
3070 _n_line_test(data, pe, event_info, event_type, ELM_GESTURE_N_FLICKS);
3072 if (_elm_config->glayer_zoom_finger_enable && IS_TESTED(ELM_GESTURE_ZOOM))
3073 _zoom_test(data, pe, event_info, event_type, ELM_GESTURE_ZOOM);
3075 if (IS_TESTED(ELM_GESTURE_ZOOM))
3076 _zoom_with_wheel_test(data, event_info, event_type, ELM_GESTURE_ZOOM);
3078 if (_elm_config->glayer_rotate_finger_enable && IS_TESTED(ELM_GESTURE_ROTATE))
3079 _rotate_test(data, pe, event_info, event_type, ELM_GESTURE_ROTATE);
3081 if (_get_event_flag(event_info, event_type) & EVAS_EVENT_FLAG_ON_HOLD)
3082 _event_history_add(data, event_info, event_type);
3083 else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
3084 (event_type == EVAS_CALLBACK_MULTI_UP))
3086 Eina_List *pending = _device_is_pending(wd->pending, event_info, event_type);
3089 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_ON_HOLD);
3090 _event_history_add(data, event_info, event_type);
3094 /* we maintain list of touched devices */
3095 /* We also use move to track current device x.y pos */
3096 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
3097 (event_type == EVAS_CALLBACK_MULTI_DOWN) ||
3098 (event_type == EVAS_CALLBACK_MOUSE_MOVE) ||
3099 (event_type == EVAS_CALLBACK_MULTI_MOVE))
3101 wd->touched = _add_touched_device(wd->touched, pe);
3103 else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
3104 (event_type == EVAS_CALLBACK_MULTI_UP))
3106 wd->touched = _remove_touched_device(wd->touched, pe);
3109 /* Report current states and clear history if needed */
3110 Eina_Bool states_reset = _clear_if_finished(data);
3111 if (wd->glayer_continues_enable)
3112 continues_gestures_restart(data, states_reset);
3117 * For all _mouse_* / multi_* functions wethen send this event to
3118 * _event_process function.
3120 * @param data The gesture-layer object.
3121 * @param event_info Pointer to recent input event.
3123 * @ingroup Elm_Gesture_Layer
3126 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3129 Widget_Data *wd = elm_widget_data_get(data);
3131 if (((Evas_Event_Mouse_Down *) event_info)->button != 1)
3132 return; /* We only process left-click at the moment */
3134 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_DOWN);
3138 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3141 Widget_Data *wd = elm_widget_data_get(data);
3144 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_MOVE);
3148 _key_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3151 Widget_Data *wd = elm_widget_data_get(data);
3154 _event_process(data, obj, event_info, EVAS_CALLBACK_KEY_DOWN);
3158 _key_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3161 Widget_Data *wd = elm_widget_data_get(data);
3164 _event_process(data, obj, event_info, EVAS_CALLBACK_KEY_UP);
3168 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3171 Widget_Data *wd = elm_widget_data_get(data);
3174 if (((Evas_Event_Mouse_Up *) event_info)->button != 1)
3175 return; /* We only process left-click at the moment */
3177 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_UP);
3181 _mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3184 Widget_Data *wd = elm_widget_data_get(data);
3187 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_WHEEL);
3191 _multi_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3194 Widget_Data *wd = elm_widget_data_get(data);
3197 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_DOWN);
3201 _multi_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3204 Widget_Data *wd = elm_widget_data_get(data);
3207 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_MOVE);
3211 _multi_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3214 Widget_Data *wd = elm_widget_data_get(data);
3217 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_UP);
3221 elm_gesture_layer_hold_events_get(Evas_Object *obj)
3223 Widget_Data *wd = elm_widget_data_get(obj);
3224 if (!wd) return EINA_FALSE;
3226 return !wd->repeat_events;
3230 elm_gesture_layer_hold_events_set(Evas_Object *obj, Eina_Bool r)
3232 Widget_Data *wd = elm_widget_data_get(obj);
3235 wd->repeat_events = !r;
3239 elm_gesture_layer_zoom_step_set(Evas_Object *obj, double s)
3241 Widget_Data *wd = elm_widget_data_get(obj);
3251 elm_gesture_layer_rotate_step_set(Evas_Object *obj, double s)
3253 Widget_Data *wd = elm_widget_data_get(obj);
3259 wd->rotate_step = s;
3263 elm_gesture_layer_attach(Evas_Object *obj, Evas_Object *t)
3265 Widget_Data *wd = elm_widget_data_get(obj);
3266 if (!wd) return EINA_FALSE;
3271 /* if was attached before, unregister callbacks first */
3273 _unregister_callbacks(obj);
3277 _register_callbacks(obj);
3282 elm_gesture_layer_cb_set(Evas_Object *obj, Elm_Gesture_Types idx,
3283 Elm_Gesture_State cb_type, Elm_Gesture_Event_Cb cb, void *data)
3285 Widget_Data *wd = elm_widget_data_get(obj);
3289 if (!wd->gesture[idx])
3290 wd->gesture[idx] = calloc(1, sizeof(Gesture_Info));
3291 if (!wd->gesture[idx]) return;
3293 p = wd->gesture[idx];
3296 p->fn[cb_type].cb = cb;
3297 p->fn[cb_type].user_data = data;
3298 p->state = ELM_GESTURE_STATE_UNDEFINED;
3303 _disable_hook(Evas_Object *obj)
3305 if (elm_widget_disabled_get(obj))
3306 _unregister_callbacks(obj);
3308 _register_callbacks(obj);
3312 elm_gesture_layer_add(Evas_Object *parent)
3318 ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
3320 ELM_SET_WIDTYPE(widtype, "gesture_layer");
3321 elm_widget_type_set(obj, "gesture_layer");
3322 elm_widget_sub_object_add(parent, obj);
3323 elm_widget_data_set(obj, wd);
3324 elm_widget_del_hook_set(obj, _del_hook);
3325 elm_widget_disable_hook_set(obj, _disable_hook);
3328 wd->line_min_length =_elm_config->glayer_line_min_length * elm_finger_size_get();
3329 wd->zoom_distance_tolerance = _elm_config->glayer_zoom_distance_tolerance * elm_finger_size_get();
3330 wd->line_distance_tolerance = _elm_config->glayer_line_distance_tolerance * elm_finger_size_get();
3331 wd->zoom_finger_factor = _elm_config->glayer_zoom_finger_factor;
3332 wd->zoom_wheel_factor = _elm_config->glayer_zoom_wheel_factor; /* mouse wheel zoom steps */
3333 wd->rotate_angular_tolerance = _elm_config->glayer_rotate_angular_tolerance;
3334 wd->line_angular_tolerance = _elm_config->glayer_line_angular_tolerance;
3335 wd->flick_time_limit_ms = _elm_config->glayer_flick_time_limit_ms;
3336 wd->long_tap_start_timeout = _elm_config->glayer_long_tap_start_timeout;
3337 wd->repeat_events = EINA_TRUE;
3338 wd->glayer_continues_enable = _elm_config->glayer_continues_enable;
3340 #if defined(DEBUG_GESTURE_LAYER)
3341 printf("size of Gestures = <%d>\n", sizeof(wd->gesture));
3342 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);
3344 memset(wd->gesture, 0, sizeof(wd->gesture));