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
11 /* Some Trigo values */
12 #define RAD_90DEG M_PI_2
13 #define RAD_180DEG M_PI
14 #define RAD_270DEG (M_PI_2 * 3)
15 #define RAD_360DEG (M_PI * 2)
16 /* #define DEBUG_GESTURE_LAYER 1 */
19 _glayer_bufdup(void *buf, size_t size)
26 #define COPY_EVENT_INFO(EV) _glayer_bufdup(EV, sizeof(*EV))
29 #define SET_TEST_BIT(P) do { \
30 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; \
33 #define IS_TESTED(T) ((wd->gesture[T]) ? wd->gesture[T]->test : EINA_FALSE)
39 * Struct holds callback information.
41 * @ingroup Elm_Gesture_Layer
45 void *user_data; /**< Holds user data to CB (like sd) */
46 Elm_Gesture_Event_Cb cb;
53 * type for callback information
55 * @ingroup Elm_Gesture_Layer
57 typedef struct _Func_Data Func_Data;
62 * @struct _Gesture_Info
63 * Struct holds gesture info
65 * @ingroup Elm_Gesture_Layer
70 void *data; /**< Holds gesture intemidiate processing data */
71 Func_Data fn[ELM_GESTURE_STATE_ABORT + 1]; /**< Callback info for states */
72 Elm_Gesture_Types g_type; /**< gesture type */
73 Elm_Gesture_State state; /**< gesture state */
74 void *info; /**< Data for the state callback */
75 Eina_Bool test; /**< if true this gesture should be tested on input */
81 * @typedef Gesture_Info
82 * Type for _Gesture_Info
84 * @ingroup Elm_Gesture_Layer
86 typedef struct _Gesture_Info Gesture_Info;
91 * @struct _Event_History
92 * Struct holds event history.
93 * These events are repeated if no gesture found.
95 * @ingroup Elm_Gesture_Layer
101 Evas_Callback_Type event_type;
107 * @typedef Event_History
108 * Type for _Event_History
110 * @ingroup Elm_Gesture_Layer
112 typedef struct _Event_History Event_History;
117 * @struct _Pointer_Event
118 * Struct holds pointer-event info
119 * This is a generic pointer event structure
121 * @ingroup Elm_Gesture_Layer
123 struct _Pointer_Event
126 unsigned int timestamp;
128 Evas_Callback_Type event_type;
134 * @typedef Pointer_Event
135 * Type for generic pointer event structure
137 * @ingroup Elm_Gesture_Layer
139 typedef struct _Pointer_Event Pointer_Event;
141 /* All *Type structs hold result for the user in 'info' field
142 * The rest is gesture processing intermediate data.
143 * NOTE: info field must be FIRST in the struct.
144 * This is used when reporting ABORT in event_history_clear() */
147 Elm_Gesture_Taps_Info info;
148 unsigned int count_ups;
154 typedef struct _Taps_Type Taps_Type;
156 struct _Long_Tap_Type
158 Elm_Gesture_Taps_Info info;
159 unsigned int center_x;
160 unsigned int center_y;
162 Ecore_Timer *timeout; /* When this expires, long tap STARTed */
165 typedef struct _Long_Tap_Type Long_Tap_Type;
167 struct _Momentum_Type
168 { /* Fields used by _line_test() */
169 Elm_Gesture_Momentum_Info info;
170 Evas_Coord_Point line_st;
171 Evas_Coord_Point line_end;
172 unsigned int t_st_x; /* Time start on X */
173 unsigned int t_st_y; /* Time start on Y */
174 unsigned int t_end; /* Time end */
177 typedef struct _Momentum_Type Momentum_Type;
181 Evas_Coord_Point line_st;
182 Evas_Coord_Point line_end;
183 Evas_Coord line_length;
184 unsigned int t_st; /* Time start */
185 unsigned int t_end; /* Time end */
187 double line_angle; /* Current angle of line */
189 typedef struct _Line_Data Line_Data;
192 { /* Fields used by _line_test() */
193 Elm_Gesture_Line_Info info;
194 Eina_List *list; /* List of Line_Data */
196 typedef struct _Line_Type Line_Type;
199 { /* Fields used by _zoom_test() */
200 Elm_Gesture_Zoom_Info info;
201 Pointer_Event zoom_st;
202 Pointer_Event zoom_mv;
203 Pointer_Event zoom_st1;
204 Pointer_Event zoom_mv1;
205 Evas_Event_Mouse_Wheel *zoom_wheel;
206 Evas_Coord zoom_base; /* Holds gap between fingers on zoom-start */
207 Evas_Coord zoom_distance_tolerance;
208 Elm_Gesture_Momentum_Info momentum1; /* For continues gesture */
209 Elm_Gesture_Momentum_Info momentum2; /* For continues gesture */
212 typedef struct _Zoom_Type Zoom_Type;
215 { /* Fields used by _rotation_test() */
216 Elm_Gesture_Rotate_Info info;
217 Pointer_Event rotate_st;
218 Pointer_Event rotate_mv;
219 Pointer_Event rotate_st1;
220 Pointer_Event rotate_mv1;
221 double rotate_angular_tolerance;
223 Elm_Gesture_Momentum_Info momentum1; /* For continues gesture */
224 Elm_Gesture_Momentum_Info momentum2; /* For continues gesture */
226 typedef struct _Rotate_Type Rotate_Type;
230 Evas_Object *target; /* Target Widget */
231 Event_History *event_history_list;
234 Evas_Coord zoom_distance_tolerance;
235 Evas_Coord line_distance_tolerance;
236 double line_angular_tolerance;
237 double zoom_wheel_factor; /* mouse wheel zoom steps */
238 double zoom_finger_factor; /* used for zoom factor */
239 double rotate_angular_tolerance;
240 unsigned int flick_time_limit_ms;
241 double long_tap_start_timeout;
246 Gesture_Info *gesture[ELM_GESTURE_LAST];
247 Ecore_Timer *dbl_timeout; /* When this expires, dbl click/taps ABORTed */
248 Eina_List *pending; /* List of devices need to refeed *UP event */
249 Eina_List *touched; /* Information of touched devices */
250 Eina_List *recent_device_event; /* Information of recent pe event of each device */
252 Eina_Bool repeat_events : 1;
254 typedef struct _Widget_Data Widget_Data;
256 static const char *widtype = NULL;
257 static void _del_hook(Evas_Object *obj);
259 static Eina_Bool _event_history_clear(Evas_Object *obj);
260 static void _reset_states(Widget_Data *wd);
261 static void _key_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
262 static void _key_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
263 static void _zoom_with_wheel_test(Evas_Object *obj, void *event_info, Evas_Callback_Type event_type, Elm_Gesture_Types g_type);
264 static void _mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
265 static void _mouse_down(void *data, Evas *e, Evas_Object *obj, void *event_info);
266 static void _mouse_move(void *data, Evas *e, Evas_Object *obj, void *event_info);
267 static void _mouse_up(void *data, Evas *e, Evas_Object *obj, void *event_info);
269 static void _multi_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
270 static void _multi_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
271 static void _multi_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info);
273 /* START - Functions to manage touched-device list */
276 * This function is used to find if device is touched
278 * @ingroup Elm_Gesture_Layer
281 compare_device(const void *data1, const void *data2)
282 { /* Compare the two device numbers */
283 return (((Pointer_Event *) data1)->device -((Pointer_Event *) data2)->device);
289 * Recoed Pointer Event in touched device list
290 * Note: This fuction allocates memory for PE event
291 * This memory is released in _remove_touched_device()
292 * @param list Pointer to touched device list.
293 * @param Pointer_Event Pointer to PE.
295 * @ingroup Elm_Gesture_Layer
298 _add_touched_device(Eina_List *list, Pointer_Event *pe)
300 if (eina_list_search_unsorted_list(list, compare_device, pe))
303 Pointer_Event *p = malloc(sizeof(Pointer_Event ));
304 memcpy(p, pe, sizeof(Pointer_Event)); /* Freed in _remove_touched_device() */
305 return eina_list_append(list, p);
311 * Remove Pointer Event from touched device list
312 * @param list Pointer to touched device list.
313 * @param Pointer_Event Pointer to PE.
315 * @ingroup Elm_Gesture_Layer
318 _remove_touched_device(Eina_List *list, Pointer_Event *pe)
320 Pointer_Event *p = eina_list_search_unsorted(list, compare_device, pe);
324 return eina_list_remove(list, p);
329 /* END - Functions to manage touched-device list */
331 /* START - Functions to manage recent device event list */
332 /* This list holds the recent-event for each device */
333 /* it will hold a single recent-event for each device */
334 /* We are using those PE events of this list to */
335 /* send them later to test funcs to restart gestures */
336 /* We only keep DOWN, MOVE events in this list. */
337 /* So when no touch this list is empty. */
341 * Recoed Pointer Event in touched device list
342 * Note: This fuction allocates memory for PE event
343 * This memory is released here when device untouched
345 * @param list Pointer to touched device list.
346 * @param Pointer_Event Pointer to PE.
348 * @ingroup Elm_Gesture_Layer
351 _add_recent_device_event(Eina_List *list, Pointer_Event *pe)
353 void *data = eina_list_search_sorted(list, compare_device, pe);
355 Pointer_Event *p = NULL;
356 if(data) /* First remove recent event for this device */
357 l = eina_list_remove(list, data);
360 switch(pe->event_type)
362 case EVAS_CALLBACK_MOUSE_DOWN:
363 case EVAS_CALLBACK_MOUSE_MOVE:
364 case EVAS_CALLBACK_MULTI_DOWN:
365 case EVAS_CALLBACK_MULTI_MOVE:
366 p = malloc(sizeof(Pointer_Event));
367 memcpy(p, pe, sizeof(Pointer_Event)); /* Freed in here or on cleanup */
368 l = eina_list_sorted_insert(l, compare_device, p);
371 /* Kept those cases for referance */
372 case EVAS_CALLBACK_MOUSE_IN:
373 case EVAS_CALLBACK_MOUSE_OUT:
374 case EVAS_CALLBACK_MOUSE_WHEEL:
375 case EVAS_CALLBACK_MOUSE_UP:
376 case EVAS_CALLBACK_MULTI_UP:
377 case EVAS_CALLBACK_KEY_DOWN:
378 case EVAS_CALLBACK_KEY_UP:
387 /* END - Functions to manage recent device event list */
393 * @param event_info pointer to event.
395 * @ingroup Elm_Gesture_Layer
397 static Evas_Event_Flags
398 _get_event_flag(void *event_info, Evas_Callback_Type event_type)
402 case EVAS_CALLBACK_MOUSE_IN:
403 return ((Evas_Event_Mouse_In *) event_info)->event_flags;
404 case EVAS_CALLBACK_MOUSE_OUT:
405 return ((Evas_Event_Mouse_Out *) event_info)->event_flags;
406 case EVAS_CALLBACK_MOUSE_DOWN:
407 return ((Evas_Event_Mouse_Down *) event_info)->event_flags;
408 case EVAS_CALLBACK_MOUSE_MOVE:
409 return ((Evas_Event_Mouse_Move *) event_info)->event_flags;
410 case EVAS_CALLBACK_MOUSE_UP:
411 return ((Evas_Event_Mouse_Up *) event_info)->event_flags;
412 case EVAS_CALLBACK_MOUSE_WHEEL:
413 return ((Evas_Event_Mouse_Wheel *) event_info)->event_flags;
414 case EVAS_CALLBACK_MULTI_DOWN:
415 return ((Evas_Event_Multi_Down *) event_info)->event_flags;
416 case EVAS_CALLBACK_MULTI_MOVE:
417 return ((Evas_Event_Multi_Move *) event_info)->event_flags;
418 case EVAS_CALLBACK_MULTI_UP:
419 return ((Evas_Event_Multi_Up *) event_info)->event_flags;
420 case EVAS_CALLBACK_KEY_DOWN:
421 return ((Evas_Event_Key_Down *) event_info)->event_flags;
422 case EVAS_CALLBACK_KEY_UP:
423 return ((Evas_Event_Key_Up *) event_info)->event_flags;
425 return EVAS_EVENT_FLAG_NONE;
432 * Sets event flag to value returned from user callback
433 * @param wd Widget Data
434 * @param event_info pointer to event.
435 * @param event_type what type was ev (mouse down, etc...)
436 * @param ev_flags event flags
438 * @ingroup Elm_Gesture_Layer
441 consume_event(Widget_Data *wd, void *event_info,
442 Evas_Callback_Type event_type, Evas_Event_Flags ev_flags)
443 { /* Mark EVAS_EVENT_FLAG_ON_HOLD on events that are used by gesture layer */
444 /* ev_flags != EVAS_EVENT_FLAG_NONE means target used event and g-layer */
445 /* should not refeed this event. */
447 return; /* This happens when restarting gestures */
449 if ((ev_flags) || (!wd->repeat_events))
453 case EVAS_CALLBACK_MOUSE_DOWN:
454 ((Evas_Event_Mouse_Down *) event_info)->event_flags |= ev_flags;
456 case EVAS_CALLBACK_MOUSE_MOVE:
457 ((Evas_Event_Mouse_Move *) event_info)->event_flags |= ev_flags;
459 case EVAS_CALLBACK_MOUSE_UP:
460 ((Evas_Event_Mouse_Up *) event_info)->event_flags |= ev_flags;
462 case EVAS_CALLBACK_MOUSE_WHEEL:
463 ((Evas_Event_Mouse_Wheel *) event_info)->event_flags |= ev_flags;
465 case EVAS_CALLBACK_MULTI_DOWN:
466 ((Evas_Event_Multi_Down *) event_info)->event_flags |= ev_flags;
468 case EVAS_CALLBACK_MULTI_MOVE:
469 ((Evas_Event_Multi_Move *) event_info)->event_flags |= ev_flags;
471 case EVAS_CALLBACK_MULTI_UP:
472 ((Evas_Event_Multi_Up *) event_info)->event_flags |= ev_flags;
474 case EVAS_CALLBACK_KEY_DOWN:
475 ((Evas_Event_Key_Down *) event_info)->event_flags |= ev_flags;
477 case EVAS_CALLBACK_KEY_UP:
478 ((Evas_Event_Key_Up *) event_info)->event_flags |= ev_flags;
489 * Report current state of a gesture by calling user callback.
490 * @param gesture what gesture state we report.
491 * @param info inforamtion for user callback
493 * @ingroup Elm_Gesture_Layer
495 static Evas_Event_Flags
496 _report_state(Gesture_Info *gesture, void *info)
497 { /* We report current state (START, MOVE, END, ABORT), once */
498 #if defined(DEBUG_GESTURE_LAYER)
499 printf("%s reporting gesture=<%d> state=<%d>\n" , __func__, gesture->g_type,
502 if ((gesture->state != ELM_GESTURE_STATE_UNDEFINED) &&
503 (gesture->fn[gesture->state].cb))
504 { /* Fill state-info struct and send ptr to user callback */
505 return gesture->fn[gesture->state].cb(
506 gesture->fn[gesture->state].user_data, info);
509 return EVAS_EVENT_FLAG_NONE;
515 * Update state for a given gesture.
516 * We may update gesture state to:
517 * UNDEFINED - current input did not start gesure yet.
518 * START - gesture started according to input.
519 * MOVE - gusture in progress.
520 * END - gesture completed according to input.
521 * ABORT - input does not matches gesure.
522 * note that we may move from UNDEFINED to ABORT
523 * because we may detect that gesture will not START
524 * with a given input.
526 * @param g given gesture to change state.
527 * @param s gesure new state.
528 * @param info buffer to be sent to user callback on report_state.
529 * @param force makes report_state to report the new-state even
530 * if its same as current state. Works for MOVE - gesture in progress.
532 * @ingroup Elm_Gesture_Layer
534 static Evas_Event_Flags
535 _set_state(Gesture_Info *g, Elm_Gesture_State s,
536 void *info, Eina_Bool force)
538 Elm_Gesture_State old_state;
539 if ((g->state == s) && (!force))
540 return EVAS_EVENT_FLAG_NONE;
542 old_state = g->state;
545 g->info = info; /* Information for user callback */
546 if ((g->state == ELM_GESTURE_STATE_ABORT) ||
547 (g->state == ELM_GESTURE_STATE_END))
548 g->test = EINA_FALSE;
550 if ((g->state != ELM_GESTURE_STATE_UNDEFINED) &&
551 (!((old_state == ELM_GESTURE_STATE_UNDEFINED) &&
552 (s == ELM_GESTURE_STATE_ABORT))))
553 return _report_state(g, g->info);
555 return EVAS_EVENT_FLAG_NONE;
561 * This resets all gesture states and sets test-bit.
562 * this is used for restarting gestures to listen to input.
563 * happens after we complete a gesture or no gesture was detected.
564 * @param wd Widget data of the gesture-layer object.
566 * @ingroup Elm_Gesture_Layer
569 _reset_states(Widget_Data *wd)
573 for (i = ELM_GESTURE_FIRST; i < ELM_GESTURE_LAST; i++)
578 _set_state(p, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
587 * if gesture was NOT detected AND we only have gestures in ABORT state
588 * we clear history immediately to be ready for input.
590 * @param obj The gesture-layer object.
591 * @return TRUE on event history_clear
593 * @ingroup Elm_Gesture_Layer
596 _clear_if_finished(Evas_Object *obj)
598 Widget_Data *wd = elm_widget_data_get(obj);
599 if (!wd) return EINA_FALSE;
602 /* Clear history if all we have aborted gestures */
603 Eina_Bool reset_s = EINA_TRUE, all_undefined = EINA_TRUE;
604 for (i = ELM_GESTURE_FIRST ; i < ELM_GESTURE_LAST; i++)
605 { /* If no gesture started and all we have aborted gestures, reset all */
606 Gesture_Info *p = wd->gesture[i];
607 if ((p) && (p->state != ELM_GESTURE_STATE_UNDEFINED))
609 if ((p->state == ELM_GESTURE_STATE_START) ||
610 (p->state == ELM_GESTURE_STATE_MOVE))
611 reset_s = EINA_FALSE;
613 all_undefined = EINA_FALSE;
617 // if ((!wd->touched) || (reset_s && !all_undefined))
618 /* (!wd->touched && reset_s) - don't stop zoom with mouse-wheel */
619 if (reset_s && (!all_undefined))
620 return _event_history_clear(obj);
626 _inside(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
628 int w = elm_finger_size_get() >> 1; /* Finger size devided by 2 */
644 /* All *test_reset() funcs are called to clear
645 * gesture intermediate data.
646 * This happens when we need to reset our tests.
647 * for example when gesture is detected or all ABORTed. */
649 _dbl_click_test_reset(Gesture_Info *gesture)
654 Widget_Data *wd = elm_widget_data_get(gesture->obj);
655 if (wd->dbl_timeout) ecore_timer_del(wd->dbl_timeout);
656 wd->dbl_timeout = NULL;
663 EINA_LIST_FREE(((Taps_Type *) gesture->data)->l, data)
664 EINA_LIST_FREE(data, pe)
667 memset(gesture->data, 0, sizeof(Taps_Type));
670 /* All *test_reset() funcs are called to clear
671 * gesture intermediate data.
672 * This happens when we need to reset our tests.
673 * for example when gesture is detected or all ABORTed. */
675 _n_long_tap_test_reset(Gesture_Info *gesture)
683 Long_Tap_Type *st = gesture->data;
684 if (st->timeout) ecore_timer_del(st->timeout);
687 EINA_LIST_FOREACH(st->touched, l, p)
690 eina_list_free(st->touched);
691 memset(gesture->data, 0, sizeof(Long_Tap_Type));
695 _momentum_test_reset(Gesture_Info *gesture)
703 memset(gesture->data, 0, sizeof(Momentum_Type));
707 _line_data_reset(Line_Data *st)
712 memset(st, 0, sizeof(Line_Data));
713 st->line_angle = ELM_GESTURE_NEGATIVE_ANGLE;
717 _line_test_reset(Gesture_Info *gesture)
725 Line_Type *st = gesture->data;
726 Eina_List *list = st->list;
729 EINA_LIST_FOREACH(list, l, t_line)
732 eina_list_free(list);
737 _zoom_test_reset(Gesture_Info *gesture)
745 Widget_Data *wd = elm_widget_data_get(gesture->obj);
746 Zoom_Type *st = gesture->data;
747 Pointer_Event pe, pe1;
748 Evas_Modifier_Mask mask = evas_key_modifier_mask_get(
749 evas_object_evas_get(wd->target), "Control");
750 evas_object_key_ungrab(wd->target, "Control_L", mask, 0);
751 evas_object_key_ungrab(wd->target, "Control_R", mask, 0);
753 pe.timestamp = pe1.timestamp = 0;
755 if (eina_list_search_unsorted_list(wd->touched, compare_device,
757 memcpy(&pe, &st->zoom_st, sizeof(Pointer_Event));
759 if (eina_list_search_unsorted_list(wd->touched, compare_device,
761 memcpy(&pe1, &st->zoom_st1, sizeof(Pointer_Event));
763 memset(st, 0, sizeof(Zoom_Type));
765 /* If user released one finger only, restore down-info */
766 if (pe.timestamp && (!pe1.timestamp))
767 memcpy(&st->zoom_st, &pe, sizeof(Pointer_Event));
769 if (pe1.timestamp && (!pe.timestamp))
770 memcpy(&st->zoom_st1, &pe1, sizeof(Pointer_Event));
772 st->zoom_distance_tolerance = wd->zoom_distance_tolerance;
777 _rotate_test_reset(Gesture_Info *gesture)
785 Widget_Data *wd = elm_widget_data_get(gesture->obj);
786 Rotate_Type *st = gesture->data;
787 Pointer_Event pe, pe1;
789 pe.timestamp = pe1.timestamp = 0;
791 if (eina_list_search_unsorted_list(wd->touched, compare_device,
793 memcpy(&pe, &st->rotate_st, sizeof(Pointer_Event));
795 if (eina_list_search_unsorted_list(wd->touched, compare_device,
797 memcpy(&pe1, &st->rotate_st1, sizeof(Pointer_Event));
799 memset(st, 0, sizeof(Rotate_Type));
801 /* If user released one finger only, restore down-info */
802 if (pe.timestamp && (!pe1.timestamp))
803 memcpy(&st->rotate_st, &pe, sizeof(Pointer_Event));
805 if (pe1.timestamp && (!pe.timestamp))
806 memcpy(&st->rotate_st1, &pe1, sizeof(Pointer_Event));
809 st->info.base_angle = ELM_GESTURE_NEGATIVE_ANGLE;
810 st->rotate_angular_tolerance = wd->rotate_angular_tolerance;
817 * We register callbacks when gesture layer is attached to an object
818 * or when its enabled after disable.
820 * @param obj The gesture-layer object.
822 * @ingroup Elm_Gesture_Layer
825 _register_callbacks(Evas_Object *obj)
827 Widget_Data *wd = elm_widget_data_get(obj);
832 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_DOWN,
834 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_MOVE,
836 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_UP,
839 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MOUSE_WHEEL,
842 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_DOWN,
844 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_MOVE,
846 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_MULTI_UP,
849 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_KEY_DOWN,
851 evas_object_event_callback_add(wd->target, EVAS_CALLBACK_KEY_UP,
859 * We unregister callbacks when gesture layer is disabled.
861 * @param obj The gesture-layer object.
863 * @ingroup Elm_Gesture_Layer
866 _unregister_callbacks(Evas_Object *obj)
868 Widget_Data *wd = elm_widget_data_get(obj);
873 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_DOWN,
875 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_MOVE,
877 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_UP,
880 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MOUSE_WHEEL,
883 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_DOWN,
886 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_MOVE,
889 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_MULTI_UP,
892 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_KEY_DOWN,
894 evas_object_event_callback_del(wd->target, EVAS_CALLBACK_KEY_UP,
899 /* START - Event history list handling functions */
902 * This function is used to find if device number
903 * is found in a list of devices.
904 * The list contains devices for refeeding *UP event
906 * @ingroup Elm_Gesture_Layer
909 device_in_pending_list(const void *data1, const void *data2)
910 { /* Compare the two device numbers */
911 return (((intptr_t) data1) - ((intptr_t) data2));
917 * This functions adds device to refeed-pending device list
918 * @ingroup Elm_Gesture_Layer
921 _add_device_pending(Eina_List *list, void *event, Evas_Callback_Type event_type)
923 int device = ELM_MOUSE_DEVICE;
926 case EVAS_CALLBACK_MOUSE_DOWN:
928 case EVAS_CALLBACK_MULTI_DOWN:
929 device = ((Evas_Event_Multi_Down *) event)->device;
935 if (!eina_list_search_unsorted_list(list, device_in_pending_list,
938 return eina_list_append(list, (intptr_t*) device);
947 * This functions returns pending-device node
948 * @ingroup Elm_Gesture_Layer
951 _device_is_pending(Eina_List *list, void *event, Evas_Callback_Type event_type)
953 int device = ELM_MOUSE_DEVICE;
956 case EVAS_CALLBACK_MOUSE_UP:
958 case EVAS_CALLBACK_MULTI_UP:
959 device = ((Evas_Event_Multi_Up *) event)->device;
965 return eina_list_search_unsorted_list(list, device_in_pending_list,
966 (intptr_t *) device);
972 * This function reports ABORT to all none-detected gestures
973 * Then resets test bits for all desired gesures
974 * and clears input-events history.
975 * note: if no gesture was detected, events from history list
976 * are streamed to the widget because it's unused by layer.
977 * user may cancel refeed of events by setting repeat events.
979 * @param obj The gesture-layer object.
981 * @ingroup Elm_Gesture_Layer
984 _event_history_clear(Evas_Object *obj)
986 Widget_Data *wd = elm_widget_data_get(obj);
987 if (!wd) return EINA_FALSE;
991 Evas *e = evas_object_evas_get(obj);
992 Eina_Bool gesture_found = EINA_FALSE;
993 for (i = ELM_GESTURE_FIRST ; i < ELM_GESTURE_LAST; i++)
998 if (p->state == ELM_GESTURE_STATE_END)
999 gesture_found = EINA_TRUE;
1001 { /* Report ABORT to all gestures that still not finished */
1002 _set_state(p, ELM_GESTURE_STATE_ABORT, wd->gesture[i]->info,
1008 _reset_states(wd); /* we are ready to start testing for gestures again */
1010 /* Clear all gestures intermediate date */
1011 _n_long_tap_test_reset(wd->gesture[ELM_GESTURE_N_LONG_TAPS]);
1012 _dbl_click_test_reset(wd->gesture[ELM_GESTURE_N_TAPS]);
1013 _dbl_click_test_reset(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
1014 _dbl_click_test_reset(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
1015 _momentum_test_reset(wd->gesture[ELM_GESTURE_MOMENTUM]);
1016 _line_test_reset(wd->gesture[ELM_GESTURE_N_LINES]);
1017 _line_test_reset(wd->gesture[ELM_GESTURE_N_FLICKS]);
1018 _zoom_test_reset(wd->gesture[ELM_GESTURE_ZOOM]);
1019 _rotate_test_reset(wd->gesture[ELM_GESTURE_ROTATE]);
1021 /* Disable gesture layer so refeeded events won't be consumed by it */
1022 _unregister_callbacks(obj);
1023 while (wd->event_history_list)
1026 t = wd->event_history_list;
1027 Eina_List *pending = _device_is_pending(wd->pending,
1028 wd->event_history_list->event,
1029 wd->event_history_list->event_type);
1031 /* Refeed events if no gesture matched input */
1032 if (pending || ((!gesture_found) && (!wd->repeat_events)))
1034 evas_event_refeed_event(e, wd->event_history_list->event,
1035 wd->event_history_list->event_type);
1039 wd->pending = eina_list_remove_list(wd->pending, pending);
1040 int device = ELM_MOUSE_DEVICE;
1041 if (wd->event_history_list->event_type == EVAS_CALLBACK_MULTI_UP)
1042 device = ((Evas_Event_Multi_Up *)
1043 (wd->event_history_list->event))->device;
1046 wd->pending = _add_device_pending(wd->pending,
1047 wd->event_history_list->event,
1048 wd->event_history_list->event_type);
1051 free(wd->event_history_list->event);
1052 wd->event_history_list = (Event_History *) eina_inlist_remove(
1053 EINA_INLIST_GET(wd->event_history_list),
1054 EINA_INLIST_GET(wd->event_history_list));
1057 _register_callbacks(obj);
1064 * This function copies input events.
1065 * We copy event info before adding it to history.
1066 * The memory is freed when we clear history.
1068 * @param event the event to copy
1069 * @param event_type event type to copy
1071 * @ingroup Elm_Gesture_Layer
1074 _copy_event_info(void *event, Evas_Callback_Type event_type)
1078 case EVAS_CALLBACK_MOUSE_DOWN:
1079 return COPY_EVENT_INFO((Evas_Event_Mouse_Down *) event);
1081 case EVAS_CALLBACK_MOUSE_MOVE:
1082 return COPY_EVENT_INFO((Evas_Event_Mouse_Move *) event);
1084 case EVAS_CALLBACK_MOUSE_UP:
1085 return COPY_EVENT_INFO((Evas_Event_Mouse_Up *) event);
1087 case EVAS_CALLBACK_MOUSE_WHEEL:
1088 return COPY_EVENT_INFO((Evas_Event_Mouse_Wheel *) event);
1090 case EVAS_CALLBACK_MULTI_DOWN:
1091 return COPY_EVENT_INFO((Evas_Event_Multi_Down *) event);
1093 case EVAS_CALLBACK_MULTI_MOVE:
1094 return COPY_EVENT_INFO((Evas_Event_Multi_Move *) event);
1096 case EVAS_CALLBACK_MULTI_UP:
1097 return COPY_EVENT_INFO((Evas_Event_Multi_Up *) event);
1099 case EVAS_CALLBACK_KEY_DOWN:
1100 return COPY_EVENT_INFO((Evas_Event_Key_Down *) event);
1102 case EVAS_CALLBACK_KEY_UP:
1103 return COPY_EVENT_INFO((Evas_Event_Key_Up *) event);
1111 _event_history_add(Evas_Object *obj, void *event, Evas_Callback_Type event_type)
1113 Widget_Data *wd = elm_widget_data_get(obj);
1115 if (!wd) return EINA_FALSE;
1117 ev = malloc(sizeof(Event_History));
1118 ev->event = _copy_event_info(event, event_type); /* Freed on event_history_clear */
1119 ev->event_type = event_type;
1120 wd->event_history_list = (Event_History *) eina_inlist_append(
1121 EINA_INLIST_GET(wd->event_history_list), EINA_INLIST_GET(ev));
1125 /* END - Event history list handling functions */
1128 _del_hook(Evas_Object *obj)
1130 Widget_Data *wd = elm_widget_data_get(obj);
1133 _event_history_clear(obj);
1134 eina_list_free(wd->pending);
1136 Pointer_Event *data;
1137 EINA_LIST_FREE(wd->touched, data)
1140 EINA_LIST_FREE(wd->recent_device_event, data)
1143 if (!elm_widget_disabled_get(obj))
1144 _unregister_callbacks(obj);
1146 /* Free all gestures internal data structures */
1148 for (i = 0; i < ELM_GESTURE_LAST; i++)
1151 if (wd->gesture[i]->data)
1152 free(wd->gesture[i]->data);
1154 free(wd->gesture[i]);
1161 compare_match_fingers(const void *data1, const void *data2)
1162 { /* Compare coords of first item in list to cur coords */
1163 const Pointer_Event *pe1 = eina_list_data_get(data1);
1164 const Pointer_Event *pe2 = data2;
1166 if (_inside(pe1->x, pe1->y, pe2->x, pe2->y))
1168 else if (pe1->x < pe2->x)
1172 if (pe1->x == pe2->x)
1173 return pe1->y - pe2->y;
1180 compare_pe_device(const void *data1, const void *data2)
1181 { /* Compare coords of first item in list to cur coords */
1182 const Pointer_Event *pe1 = eina_list_data_get(eina_list_last(data1));
1183 const Pointer_Event *pe2 = data2;
1185 /* Only match if last was a down event */
1186 if ((pe1->event_type != EVAS_CALLBACK_MULTI_DOWN) &&
1187 (pe1->event_type != EVAS_CALLBACK_MOUSE_DOWN))
1191 if (pe1->device == pe2->device)
1193 else if (pe1->device < pe2->device)
1200 _record_pointer_event(Taps_Type *st, Eina_List *pe_list, Pointer_Event *pe,
1201 Widget_Data *wd, void *event_info, Evas_Callback_Type event_type)
1202 { /* Keep copy of pe and record it in list */
1203 Pointer_Event *p = malloc(sizeof(Pointer_Event));
1204 memcpy(p, pe, sizeof(Pointer_Event));
1205 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_NONE);
1211 /* This will also update middle-point to report to user later */
1212 st->info.x = st->sum_x / st->n_taps;
1213 st->info.y = st->sum_y / st->n_taps;
1214 st->info.timestamp = pe->timestamp;
1218 pe_list = eina_list_append(pe_list, p);
1219 st->l = eina_list_append(st->l, pe_list);
1222 pe_list = eina_list_append(pe_list, p);
1230 * when this timer expires we ABORT double click gesture.
1232 * @param data The gesture-layer object.
1233 * @return cancles callback for this timer.
1235 * @ingroup Elm_Gesture_Layer
1238 _dbl_click_timeout(void *data)
1240 Gesture_Info *gesture = data;
1241 Widget_Data *wd = elm_widget_data_get(gesture->obj);
1243 wd->dbl_timeout = NULL;
1244 _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1245 gesture->info, EINA_FALSE);
1247 _dbl_click_test_reset(gesture);
1248 _clear_if_finished(gesture->obj);
1249 return ECORE_CALLBACK_CANCEL;
1255 * when this timer expires we START long tap gesture
1257 * @param data The gesture-layer object.
1258 * @return cancles callback for this timer.
1260 * @ingroup Elm_Gesture_Layer
1263 _long_tap_timeout(void *data)
1265 Gesture_Info *gesture = data;
1266 Long_Tap_Type *st = gesture->data;
1269 _set_state(gesture, ELM_GESTURE_STATE_START,
1270 gesture->data, EINA_FALSE);
1272 return ECORE_CALLBACK_CANCEL;
1278 * This function checks all click/tap and double/triple taps
1280 * @param obj The gesture-layer object.
1281 * @param pe The recent input event as stored in pe struct.
1282 * @param event_info Original input event pointer.
1283 * @param event_type Type of original input event.
1284 * @param g_type what Gesture we are testing.
1285 * @param taps How many click/taps we test for.
1287 * @ingroup Elm_Gesture_Layer
1290 _dbl_click_test(Evas_Object *obj, Pointer_Event *pe,
1291 void *event_info, Evas_Callback_Type event_type,
1292 Elm_Gesture_Types g_type, int taps)
1293 { /* Here we fill Recent_Taps struct and fire-up click/tap timers */
1294 Widget_Data *wd = elm_widget_data_get(obj);
1297 if (!pe) /* this happens when unhandled event arrived */
1298 return; /* see _make_pointer_event function */
1300 Gesture_Info *gesture = wd->gesture[g_type];
1301 if (!gesture ) return;
1303 if ((gesture->state == ELM_GESTURE_STATE_UNDEFINED) &&
1304 eina_list_count(wd->touched))
1305 return; /* user left a finger on device, do NOT start */
1307 Taps_Type *st = gesture->data;
1309 { /* Allocated once on first time */
1310 st = calloc(1, sizeof(Taps_Type));
1312 _dbl_click_test_reset(gesture);
1315 Eina_List *pe_list = NULL;
1316 Pointer_Event *pe_down = NULL;
1317 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1318 switch (pe->event_type)
1320 case EVAS_CALLBACK_MULTI_DOWN:
1321 case EVAS_CALLBACK_MOUSE_DOWN:
1322 pe_list = eina_list_search_unsorted(st->l, compare_match_fingers, pe);
1323 pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
1324 if ((pe->device == 0) && (eina_list_count(pe_list) == 1))
1325 { /* This is the first mouse down we got */
1326 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
1327 &st->info, EINA_FALSE);
1328 consume_event(wd, event_info, event_type, ev_flag);
1330 /* To test dbl_click/dbl_tap */
1331 /* When this timer expires, gesture ABORTed if not completed */
1332 if (!wd->dbl_timeout && (taps > 1))
1333 wd->dbl_timeout = ecore_timer_add(0.4, _dbl_click_timeout,
1340 case EVAS_CALLBACK_MULTI_UP:
1341 case EVAS_CALLBACK_MOUSE_UP:
1342 pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
1344 return; /* Got only first mouse_down and mouse_up */
1346 pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
1348 if (eina_list_count(pe_list) <= (unsigned int) ((taps - 1) * 2))
1349 return; /* Got only first mouse_down and mouse_up */
1351 /* Get first event in first list, this has to be Mouse Down event */
1352 pe_down = eina_list_data_get(pe_list);
1354 if (_inside(pe_down->x, pe_down->y, pe->x, pe->y))
1360 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1361 &st->info, EINA_FALSE);
1362 consume_event(wd, event_info, event_type, ev_flag);
1366 if (st->count_ups == eina_list_count(st->l))
1368 /* Abort if we found a single click */
1369 if ((taps == 1) && (st->count_ups == 1))
1371 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1372 &st->info, EINA_FALSE);
1373 consume_event(wd, event_info, event_type, ev_flag);
1376 st->info.n = st->count_ups;
1377 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_END,
1378 &st->info, EINA_FALSE);
1379 consume_event(wd, event_info, event_type, ev_flag);
1386 case EVAS_CALLBACK_MULTI_MOVE:
1387 case EVAS_CALLBACK_MOUSE_MOVE:
1388 /* Get first event in first list, this has to be a Mouse Down event */
1389 /* and verify that user didn't move out of this area before next tap */
1390 pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
1393 pe_down = eina_list_data_get(pe_list);
1394 if (!_inside(pe_down->x, pe_down->y, pe->x, pe->y))
1396 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
1397 &st->info, EINA_FALSE);
1398 consume_event(wd, event_info, event_type, ev_flag);
1411 * This function computes center-point for long-tap gesture
1413 * @param st Long Tap gesture info pointer
1414 * @param pe The recent input event as stored in pe struct.
1416 * @ingroup Elm_Gesture_Layer
1419 _compute_taps_center(Long_Tap_Type *st, Pointer_Event *pe)
1421 if(!eina_list_count(st->touched))
1426 Evas_Coord x = 0, y = 0;
1427 EINA_LIST_FOREACH(st->touched, l, p)
1428 { /* Accumulate all then take avarage */
1429 if (p->device == pe->device)
1430 { /* This will take care of values coming from MOVE event */
1441 st->info.x = x / eina_list_count(st->touched);
1442 st->info.y = y / eina_list_count(st->touched);
1448 * This function checks N long-tap gesture.
1450 * @param obj The gesture-layer object.
1451 * @param pe The recent input event as stored in pe struct.
1452 * @param event_info Original input event pointer.
1453 * @param event_type Type of original input event.
1454 * @param g_type what Gesture we are testing.
1455 * @param taps How many click/taps we test for.
1457 * @ingroup Elm_Gesture_Layer
1460 _n_long_tap_test(Evas_Object *obj, Pointer_Event *pe,
1461 void *event_info, Evas_Callback_Type event_type,
1462 Elm_Gesture_Types g_type)
1463 { /* Here we fill Recent_Taps struct and fire-up click/tap timers */
1464 Widget_Data *wd = elm_widget_data_get(obj);
1467 if (!pe) /* this happens when unhandled event arrived */
1468 return; /* see _make_pointer_event function */
1470 Gesture_Info *gesture = wd->gesture[g_type];
1471 if (!gesture ) return;
1473 Long_Tap_Type *st = gesture->data;
1475 { /* Allocated once on first time */
1476 st = calloc(1, sizeof(Long_Tap_Type));
1478 _n_long_tap_test_reset(gesture);
1481 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1482 switch (pe->event_type)
1484 case EVAS_CALLBACK_MULTI_DOWN:
1485 case EVAS_CALLBACK_MOUSE_DOWN:
1486 if (st->info.n > eina_list_count(st->touched))
1487 { /* ABORT: user lifts finger then back before completing gesgure */
1488 if (st->timeout) ecore_timer_del(st->timeout);
1490 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_ABORT,
1491 &st->info, EINA_FALSE);
1494 st->touched = _add_touched_device(st->touched, pe);
1495 st->info.n = eina_list_count(st->touched);
1496 if ((pe->device == 0) && (eina_list_count(st->touched) == 1))
1497 { /* This is the first mouse down we got */
1498 st->info.timestamp = pe->timestamp;
1500 /* To test long tap */
1501 /* When this timer expires, gesture STARTED */
1503 st->timeout = ecore_timer_add(wd->long_tap_start_timeout, _long_tap_timeout,
1507 consume_event(wd, event_info, event_type, ev_flag);
1508 _compute_taps_center(st, pe);
1511 case EVAS_CALLBACK_MULTI_UP:
1512 case EVAS_CALLBACK_MOUSE_UP:
1513 st->touched = _remove_touched_device(st->touched, pe);
1515 ((gesture->state == ELM_GESTURE_STATE_START) ||
1516 (gesture->state == ELM_GESTURE_STATE_MOVE)))
1517 { /* Report END only for gesture that STARTed */
1518 if (eina_list_count(st->touched) == 0)
1519 { /* Report END only at last release event */
1520 ev_flag =_set_state(gesture, ELM_GESTURE_STATE_END,
1521 &st->info, EINA_FALSE);
1522 consume_event(wd, event_info, event_type, ev_flag);
1527 case EVAS_CALLBACK_MULTI_MOVE:
1528 case EVAS_CALLBACK_MOUSE_MOVE:
1530 ((gesture->state == ELM_GESTURE_STATE_START) ||
1531 (gesture->state == ELM_GESTURE_STATE_MOVE)))
1532 { /* Report MOVE only if STARTED */
1533 _compute_taps_center(st, pe);
1534 /* Report MOVE if gesture started */
1535 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_MOVE,
1536 &st->info, EINA_TRUE);
1537 consume_event(wd, event_info, event_type, ev_flag);
1549 * This function computes momentum for MOMENTUM, LINE and FLICK gestures
1550 * This momentum value will be sent to widget when gesture is completed.
1552 * @param momentum pointer to buffer where we record momentum value.
1553 * @param x1 x coord where user started gesture.
1554 * @param y1 y coord where user started gesture.
1555 * @param x2 x coord where user completed gesture.
1556 * @param y2 y coord where user completed gesture.
1557 * @param t1x timestamp for X, when user started gesture.
1558 * @param t1y timestamp for Y, when user started gesture.
1559 * @param t2 timestamp when user completed gesture.
1561 * @ingroup Elm_Gesture_Layer
1564 _set_momentum(Elm_Gesture_Momentum_Info *momentum, Evas_Coord x1, Evas_Coord y1,
1565 Evas_Coord x2, Evas_Coord y2, unsigned int t1x, unsigned int t1y,
1568 Evas_Coord velx = 0, vely = 0, vel;
1569 Evas_Coord dx = x2 - x1;
1570 Evas_Coord dy = y2 - y1;
1574 velx = (dx * 1000) / dtx;
1577 vely = (dy * 1000) / dty;
1579 vel = sqrt((velx * velx) + (vely * vely));
1581 if ((_elm_config->thumbscroll_friction > 0.0) &&
1582 (vel > _elm_config->thumbscroll_momentum_threshold))
1583 { /* report momentum */
1584 momentum->mx = velx;
1585 momentum->my = vely;
1597 * This function is used for computing rotation angle (DEG).
1599 * @param x1 first finger x location.
1600 * @param y1 first finger y location.
1601 * @param x2 second finger x location.
1602 * @param y2 second finger y location.
1604 * @return angle of the line between (x1,y1), (x2,y2) in Radians.
1606 * @ingroup Elm_Gesture_Layer
1609 get_angle(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
1615 if (((int) xx) && ((int) yy))
1622 return RAD_360DEG - a;
1633 return RAD_180DEG + a;
1637 return RAD_180DEG - a;
1643 { /* Horizontal line */
1668 * This function is used for computing the magnitude and direction
1669 * of vector between two points.
1671 * @param x1 first finger x location.
1672 * @param y1 first finger y location.
1673 * @param x2 second finger x location.
1674 * @param y2 second finger y location.
1675 * @param l length computed (output)
1676 * @param a angle computed (output)
1678 * @ingroup Elm_Gesture_Layer
1681 get_vector(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2,
1682 Evas_Coord *l, double *a)
1687 *l = (Evas_Coord) sqrt(xx*xx + yy*yy);
1688 *a = get_angle(x1, y1, x2, y2);
1692 _get_direction(Evas_Coord x1, Evas_Coord x2)
1705 * This function tests momentum gesture.
1706 * @param obj The gesture-layer object.
1707 * @param pe The recent input event as stored in pe struct.
1708 * @param event_info recent input event.
1709 * @param event_type recent event type.
1710 * @param g_type what Gesture we are testing.
1712 * @ingroup Elm_Gesture_Layer
1715 _momentum_test(Evas_Object *obj, Pointer_Event *pe,
1716 void *event_info, Evas_Callback_Type event_type,
1717 Elm_Gesture_Types g_type)
1719 Widget_Data *wd = elm_widget_data_get(obj);
1721 Gesture_Info *gesture = wd->gesture[g_type];
1722 if (!gesture ) return;
1724 if ((gesture->state == ELM_GESTURE_STATE_UNDEFINED) &&
1725 eina_list_count(wd->touched))
1726 return; /* user left a finger on device, do NOT start */
1728 Momentum_Type *st = gesture->data;
1729 Elm_Gesture_State state_to_report;
1731 { /* Allocated once on first time */
1732 st = calloc(1, sizeof(Momentum_Type));
1734 _momentum_test_reset(gesture);
1740 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
1743 case EVAS_CALLBACK_MOUSE_DOWN:
1744 st->line_st.x = st->line_end.x = pe->x;
1745 st->line_st.y = st->line_end.y = pe->y;
1746 st->t_st_x = st->t_st_y = st->t_end = pe->timestamp;
1747 st->xdir = st->ydir = 0;
1748 st->info.x2 = st->info.x1 = pe->x;
1749 st->info.y2 = st->info.y1 = pe->y;
1750 st->info.tx = st->info.ty = pe->timestamp;
1751 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
1752 &st->info, EINA_FALSE);
1753 consume_event(wd, event_info, event_type, ev_flag);
1756 case EVAS_CALLBACK_MOUSE_UP:
1757 /* IGNORE if line info was cleared, like long press, move */
1760 state_to_report = ELM_GESTURE_STATE_END;
1762 if ((pe->timestamp - ELM_GESTURE_MOMENTUM_TIMEOUT) > st->t_end)
1764 /* Too long of a wait, reset all values */
1765 st->line_st.x = pe->x;
1766 st->line_st.y = pe->y;
1767 st->t_st_y = st->t_st_x = pe->timestamp;
1768 st->xdir = st->ydir = 0;
1769 state_to_report = ELM_GESTURE_STATE_ABORT;
1772 st->info.x2 = pe->x;
1773 st->info.y2 = pe->y;
1774 st->line_end.x = pe->x;
1775 st->line_end.y = pe->y;
1776 st->t_end = pe->timestamp;
1778 _set_momentum(&st->info, st->line_st.x, st->line_st.y, pe->x, pe->y,
1779 st->t_st_x, st->t_st_y, pe->timestamp);
1781 ev_flag = _set_state(gesture, state_to_report, &st->info,
1783 consume_event(wd, event_info, event_type, ev_flag);
1787 case EVAS_CALLBACK_MOUSE_MOVE:
1788 /* IGNORE if line info was cleared, like long press, move */
1792 state_to_report = ELM_GESTURE_STATE_MOVE;
1793 if ((pe->timestamp - ELM_GESTURE_MOMENTUM_TIMEOUT) > st->t_end)
1795 /* Too long of a wait, reset all values */
1796 st->line_st.x = pe->x;
1797 st->line_st.y = pe->y;
1798 st->t_st_y = st->t_st_x = pe->timestamp;
1799 st->info.tx = st->t_st_x;
1800 st->info.ty = st->t_st_y;
1801 st->xdir = st->ydir = 0;
1802 state_to_report = ELM_GESTURE_STATE_ABORT;
1807 xdir = _get_direction(st->line_end.x, pe->x);
1808 ydir = _get_direction(st->line_end.y, pe->y);
1809 if (!xdir || (xdir == (-st->xdir)))
1811 st->line_st.x = st->line_end.x;
1812 st->info.tx = st->t_st_x = st->t_end;
1816 if (!ydir || (ydir == (-st->ydir)))
1818 st->line_st.y = st->line_end.y;
1819 st->info.ty = st->t_st_y = st->t_end;
1824 st->info.x2 = st->line_end.x = pe->x;
1825 st->info.y2 = st->line_end.y = pe->y;
1826 st->t_end = pe->timestamp;
1827 _set_momentum(&st->info, st->line_st.x, st->line_st.y, pe->x, pe->y,
1828 st->t_st_x, st->t_st_y, pe->timestamp);
1829 ev_flag = _set_state(gesture, state_to_report, &st->info,
1831 consume_event(wd, event_info, event_type, ev_flag);
1834 case EVAS_CALLBACK_MULTI_UP:
1835 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
1837 consume_event(wd, event_info, event_type, ev_flag);
1846 compare_line_device(const void *data1, const void *data2)
1847 { /* Compare device component of line struct */
1848 const Line_Data *ln1 = data1;
1849 const int *device = data2;
1851 if (ln1->t_st) /* Compare only with lines that started */
1852 return (ln1->device - (*device));
1860 * This function construct line struct from input.
1861 * @param info pointer to store line momentum.
1862 * @param st line info to store input data.
1863 * @param pe The recent input event as stored in pe struct.
1865 * @ingroup Elm_Gesture_Layer
1868 _single_line_process(Elm_Gesture_Line_Info *info, Line_Data *st,
1869 Pointer_Event *pe, Evas_Callback_Type event_type)
1870 { /* Record events and set momentum for line pointed by st */
1876 case EVAS_CALLBACK_MOUSE_DOWN:
1877 case EVAS_CALLBACK_MULTI_DOWN:
1878 st->line_st.x = pe->x;
1879 st->line_st.y = pe->y;
1880 st->t_st = pe->timestamp;
1881 st->device = pe->device;
1882 info->momentum.x1 = pe->x;
1883 info->momentum.y1 = pe->y;
1884 info->momentum.tx = pe->timestamp;
1885 info->momentum.ty = pe->timestamp;
1890 case EVAS_CALLBACK_MOUSE_UP:
1891 case EVAS_CALLBACK_MULTI_UP:
1892 /* IGNORE if line info was cleared, like long press, move */
1896 st->line_end.x = pe->x;
1897 st->line_end.y = pe->y;
1898 st->t_end = pe->timestamp;
1901 case EVAS_CALLBACK_MOUSE_MOVE:
1902 case EVAS_CALLBACK_MULTI_MOVE:
1903 /* IGNORE if line info was cleared, like long press, move */
1914 _line_data_reset(st);
1918 info->momentum.x2 = pe->x;
1919 info->momentum.y2 = pe->y;
1920 _set_momentum(&info->momentum, st->line_st.x, st->line_st.y, pe->x, pe->y,
1921 st->t_st, st->t_st, pe->timestamp);
1929 * This function test for (n) line gesture.
1930 * @param obj The gesture-layer object.
1931 * @param pe The recent input event as stored in pe struct.
1932 * @param event_info Original input event pointer.
1933 * @param event_type Type of original input event.
1934 * @param g_type what Gesture we are testing.
1936 * @ingroup Elm_Gesture_Layer
1939 _n_line_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
1940 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
1944 Widget_Data *wd = elm_widget_data_get(obj);
1946 Gesture_Info *gesture = wd->gesture[g_type];
1947 if (!gesture ) return;
1949 if ((gesture->state == ELM_GESTURE_STATE_UNDEFINED) &&
1950 eina_list_count(wd->touched))
1951 return; user left a finger on device, do NOT start
1953 Line_Type *st = gesture->data;
1956 st = calloc(1, sizeof(Line_Type));
1960 Line_Data *line = NULL;
1961 Eina_List *list = st->list;
1962 unsigned int i, cnt = eina_list_count(list);
1965 { /* list is not empty, locate this device on list */
1966 line = (Line_Data *) eina_list_search_unsorted(st->list,
1967 compare_line_device, &pe->device);
1970 { /* Try to locate an empty-node */
1971 for (i = 0; i < cnt; i++)
1973 line = eina_list_nth(list, i);
1975 break; /* Found a free node */
1983 { /* List is empty or device not found, new line-struct on START only */
1984 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
1985 (event_type == EVAS_CALLBACK_MULTI_DOWN))
1986 { /* Allocate new item on START */
1987 line = calloc(1, sizeof(Line_Data));
1988 _line_data_reset(line);
1989 list = eina_list_append(list, line);
1994 if (!line) /* This may happen on MOVE that comes before DOWN */
1995 return; /* No line-struct to work with, can't continue testing */
1997 if (_single_line_process(&st->info, line, pe, event_type)) /* update st with input */
1998 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_NONE);
2000 /* Get direction and magnitude of the line */
2002 get_vector(line->line_st.x, line->line_st.y, pe->x, pe->y,
2003 &line->line_length, &angle);
2005 /* These are used later to compare lines length */
2006 Evas_Coord shortest_line_len = line->line_length;
2007 Evas_Coord longest_line_len = line->line_length;
2008 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2010 /* Now update line-state */
2012 { /* Analyze line only if line started */
2013 if (line->line_angle >= 0.0)
2014 { /* if line direction was set, we test if broke tolerance */
2015 double a = fabs(angle - line->line_angle);
2017 double d = (tan(a)) * line->line_length; /* Distance from line */
2018 #if defined(DEBUG_GESTURE_LAYER)
2019 printf("%s a=<%f> d=<%f>\n", __func__, (a * 57.295779513), d);
2021 if ((d > wd->line_distance_tolerance) || (a > wd->line_angular_tolerance))
2022 { /* Broke tolerance: abort line and start a new one */
2023 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2024 &st->info, EINA_FALSE);
2025 consume_event(wd, event_info, event_type, ev_flag);
2029 /* We may finish line if momentum is zero */
2030 /* This is for continues-gesture */
2031 if ((!st->info.momentum.mx) && (!st->info.momentum.my))
2032 { /* Finish line on zero momentum for continues gesture */
2033 line->line_end.x = pe->x;
2034 line->line_end.y = pe->y;
2035 line->t_end = pe->timestamp;
2040 { /* Record the line angle as it broke minimum length for line */
2041 if (line->line_length >= wd->line_min_length)
2042 st->info.angle = line->line_angle = angle;
2048 if (line->line_angle < 0.0)
2049 { /* it's not a line, too short more close to a tap */
2050 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2051 &st->info, EINA_FALSE);
2052 consume_event(wd, event_info, event_type, ev_flag);
2058 /* Count how many lines already started / ended */
2061 unsigned int tm_start = pe->timestamp;
2062 unsigned int tm_end = pe->timestamp;
2065 double base_angle = ELM_GESTURE_NEGATIVE_ANGLE;
2066 Eina_Bool lines_parallel = EINA_TRUE;
2067 EINA_LIST_FOREACH(list, l, t_line)
2070 base_angle = t_line->line_angle;
2073 if (t_line->line_angle >= 0)
2074 { /* Compare angle only with lines with direction defined */
2075 if (fabs(base_angle - t_line->line_angle) >
2076 wd->line_angular_tolerance)
2077 lines_parallel = EINA_FALSE;
2081 if (t_line->line_length)
2082 { /* update only if this line is used */
2083 if (shortest_line_len > t_line->line_length)
2084 shortest_line_len = t_line->line_length;
2086 if (longest_line_len < t_line->line_length)
2087 longest_line_len = t_line->line_length;
2093 if (t_line->t_st < tm_start)
2094 tm_start = t_line->t_st;
2100 if (t_line->t_end < tm_end)
2101 tm_end = t_line->t_end;
2105 st->info.n = started;
2109 ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
2110 (event_type == EVAS_CALLBACK_MULTI_DOWN)))
2111 { /* user lift one finger then starts again without line-end - ABORT */
2112 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2114 consume_event(wd, event_info, event_type, ev_flag);
2118 if (!lines_parallel)
2119 { /* Lines are NOT at same direction, abort this gesture */
2120 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2122 consume_event(wd, event_info, event_type, ev_flag);
2127 /* We report ABORT if lines length are NOT matching when fingers are up */
2128 if ((longest_line_len - shortest_line_len) > (elm_finger_size_get()*2))
2130 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2132 consume_event(wd, event_info, event_type, ev_flag);
2136 if ((g_type == ELM_GESTURE_N_FLICKS) && ((tm_end - tm_start) > wd->flick_time_limit_ms))
2137 { /* We consider FLICK as a fast line.ABORT if take too long to finish */
2138 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT, &st->info,
2140 consume_event(wd, event_info, event_type, ev_flag);
2146 case EVAS_CALLBACK_MOUSE_UP:
2147 case EVAS_CALLBACK_MULTI_UP:
2148 if ((started) && (started == ended))
2150 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2151 &st->info, EINA_FALSE);
2152 consume_event(wd, event_info, event_type, ev_flag);
2157 case EVAS_CALLBACK_MOUSE_DOWN:
2158 case EVAS_CALLBACK_MULTI_DOWN:
2161 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
2162 &st->info, EINA_TRUE);
2163 consume_event(wd, event_info, event_type, ev_flag);
2168 case EVAS_CALLBACK_MOUSE_MOVE:
2169 case EVAS_CALLBACK_MULTI_MOVE:
2172 if (started == ended)
2173 { /* For continues gesture */
2174 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2175 &st->info, EINA_FALSE);
2176 consume_event(wd, event_info, event_type, ev_flag);
2180 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_MOVE,
2181 &st->info, EINA_TRUE);
2182 consume_event(wd, event_info, event_type, ev_flag);
2188 return; /* Unhandeld event type */
2195 * This function is used to check if rotation gesture started.
2196 * @param st Contains current rotation values from user input.
2197 * @return TRUE/FALSE if we need to set rotation START.
2199 * @ingroup Elm_Gesture_Layer
2202 rotation_broke_tolerance(Rotate_Type *st)
2204 if (st->info.base_angle < 0)
2205 return EINA_FALSE; /* Angle has to be computed first */
2207 if (st->rotate_angular_tolerance < 0)
2210 double low = st->info.base_angle - st->rotate_angular_tolerance;
2211 double high = st->info.base_angle + st->rotate_angular_tolerance;
2212 double t = st->info.angle;
2225 if (high > RAD_360DEG)
2236 #if defined(DEBUG_GESTURE_LAYER)
2237 printf("%s angle=<%f> low=<%f> high=<%f>\n", __func__, t, low, high);
2239 if ((t < low) || (t > high))
2240 { /* This marks that roation action has started */
2241 st->rotate_angular_tolerance = ELM_GESTURE_NEGATIVE_ANGLE;
2242 st->info.base_angle = st->info.angle; /* Avoid jump in angle value */
2252 * This function is used for computing the gap between fingers.
2253 * It returns the length and center point between fingers.
2255 * @param x1 first finger x location.
2256 * @param y1 first finger y location.
2257 * @param x2 second finger x location.
2258 * @param y2 second finger y location.
2259 * @param x Gets center point x cord (output)
2260 * @param y Gets center point y cord (output)
2262 * @return length of the line between (x1,y1), (x2,y2) in pixels.
2264 * @ingroup Elm_Gesture_Layer
2267 get_finger_gap_length(Evas_Coord x1, Evas_Coord y1, Evas_Coord x2,
2268 Evas_Coord y2, Evas_Coord *x, Evas_Coord *y)
2270 double a, b, xx, yy, gap;
2273 gap = sqrt(xx*xx + yy*yy);
2275 /* START - Compute zoom center point */
2276 /* The triangle defined as follows:
2284 * http://en.wikipedia.org/wiki/Trigonometric_functions
2285 *************************************/
2286 if (((int) xx) && ((int) yy))
2288 double A = atan((yy / xx));
2289 #if defined(DEBUG_GESTURE_LAYER)
2290 printf("xx=<%f> yy=<%f> A=<%f>\n", xx, yy, A);
2292 a = (Evas_Coord) ((gap / 2) * sin(A));
2293 b = (Evas_Coord) ((gap / 2) * cos(A));
2294 *x = (Evas_Coord) ((x2 > x1) ? (x1 + b) : (x2 + b));
2295 *y = (Evas_Coord) ((y2 > y1) ? (y1 + a) : (y2 + a));
2300 { /* horiz line, take half width */
2301 #if defined(DEBUG_GESTURE_LAYER)
2302 printf("==== HORIZ ====\n");
2304 *x = (Evas_Coord) (xx / 2);
2305 *y = (Evas_Coord) (y1);
2309 { /* vert line, take half width */
2310 #if defined(DEBUG_GESTURE_LAYER)
2311 printf("==== VERT ====\n");
2313 *x = (Evas_Coord) (x1);
2314 *y = (Evas_Coord) (yy / 2);
2317 /* END - Compute zoom center point */
2319 return (Evas_Coord) gap;
2325 * This function is used for computing zoom value.
2327 * @param st Pointer to zoom data based on user input.
2328 * @param x1 first finger x location.
2329 * @param y1 first finger y location.
2330 * @param x2 second finger x location.
2331 * @param y2 second finger y location.
2332 * @param factor zoom-factor, used to determine how fast zoom works.
2334 * @return zoom value, when 1.0 means no zoom, 0.5 half size...
2336 * @ingroup Elm_Gesture_Layer
2338 /* FIXME change float to double */
2340 compute_zoom(Zoom_Type *st, Evas_Coord x1, Evas_Coord y1, unsigned int tm1,
2341 Evas_Coord x2, Evas_Coord y2, unsigned int tm2, double zoom_finger_factor)
2344 Evas_Coord diam = get_finger_gap_length(x1, y1, x2, y2,
2345 &st->info.x, &st->info.y);
2347 st->info.radius = diam / 2;
2351 st->zoom_base = diam;
2352 return st->info.zoom;
2355 if (st->zoom_distance_tolerance)
2356 { /* zoom tolerance <> ZERO, means zoom action NOT started yet */
2357 if (diam < (st->zoom_base - st->zoom_distance_tolerance))
2358 { /* avoid jump with zoom value when break tolerance */
2359 st->zoom_base -= st->zoom_distance_tolerance;
2360 st->zoom_distance_tolerance = 0;
2363 if (diam > (st->zoom_base + st->zoom_distance_tolerance))
2364 { /* avoid jump with zoom value when break tolerance */
2365 st->zoom_base += st->zoom_distance_tolerance;
2366 st->zoom_distance_tolerance = 0;
2372 /* We use factor only on the difference between gap-base */
2373 /* if gap=120, base=100, we get ((120-100)/100)=0.2*factor */
2374 rt = ((1.0) + ((((float) diam - (float) st->zoom_base) /
2375 (float) st->zoom_base) * zoom_finger_factor));
2378 /* Momentum: zoom per second: (NOT YET SUPPORTED) */
2379 st->info.momentum = (((rt - 1.0) * 1000) / (tm2 - tm1));
2390 * This function handles zoom with mouse wheel.
2391 * thats a combination of wheel + CTRL key.
2392 * @param obj The gesture-layer object.
2393 * @param event_info Original input event pointer.
2394 * @param event_type Type of original input event.
2395 * @param g_type what Gesture we are testing.
2397 * @ingroup Elm_Gesture_Layer
2400 _zoom_with_wheel_test(Evas_Object *obj, void *event_info,
2401 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2403 Widget_Data *wd = elm_widget_data_get(obj);
2405 if (!wd->gesture[g_type]) return;
2407 Gesture_Info *gesture_zoom = wd->gesture[g_type];
2408 Zoom_Type *st = gesture_zoom->data;
2409 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2411 { /* Allocated once on first time, used for zoom intermediate data */
2412 st = calloc(1, sizeof(Zoom_Type));
2413 gesture_zoom->data = st;
2414 _zoom_test_reset(gesture_zoom);
2419 case EVAS_CALLBACK_KEY_UP:
2421 Evas_Event_Key_Up *p = event_info;
2422 if ((!strcmp(p->keyname, "Control_L")) ||
2423 (!strcmp(p->keyname, "Control_R")))
2424 { /* Test if we ended a zoom gesture when releasing CTRL */
2425 if ((st->zoom_wheel) &&
2426 ((gesture_zoom->state == ELM_GESTURE_STATE_START) ||
2427 (gesture_zoom->state == ELM_GESTURE_STATE_MOVE)))
2428 { /* User released CTRL after zooming */
2429 ev_flag = _set_state(gesture_zoom,
2430 ELM_GESTURE_STATE_END, &st->info, EINA_FALSE);
2431 consume_event(wd, event_info, event_type, ev_flag);
2439 case EVAS_CALLBACK_MOUSE_WHEEL:
2442 Elm_Gesture_State s;
2443 if (!evas_key_modifier_is_set(
2444 ((Evas_Event_Mouse_Wheel *) event_info)->modifiers,
2446 { /* if using wheel witout CTRL after starting zoom */
2447 if ((st->zoom_wheel) &&
2448 ((gesture_zoom->state == ELM_GESTURE_STATE_START) ||
2449 (gesture_zoom->state == ELM_GESTURE_STATE_MOVE)))
2451 ev_flag = _set_state(gesture_zoom,
2452 ELM_GESTURE_STATE_END, &st->info, EINA_FALSE);
2453 consume_event(wd, event_info, event_type, ev_flag);
2458 return; /* Ignore mouse-wheel without control */
2461 /* Using mouse wheel with CTRL for zoom */
2462 if (st->zoom_wheel || (st->zoom_distance_tolerance == 0))
2463 { /* when (zoom_wheel == NULL) and (zoom_distance_tolerance == 0)
2464 we continue a zoom gesture */
2466 s = ELM_GESTURE_STATE_MOVE;
2469 { /* On first wheel event, report START */
2470 Evas_Modifier_Mask mask = evas_key_modifier_mask_get(
2471 evas_object_evas_get(wd->target), "Control");
2473 s = ELM_GESTURE_STATE_START;
2474 if (!evas_object_key_grab(wd->target, "Control_L", mask, 0, EINA_FALSE))
2475 ERR("Failed to Grabbed CTRL_L");
2476 if (!evas_object_key_grab(wd->target, "Control_R", mask, 0, EINA_FALSE))
2477 ERR("Failed to Grabbed CTRL_R");
2480 st->zoom_distance_tolerance = 0; /* Cancel tolerance */
2481 st->zoom_wheel = (Evas_Event_Mouse_Wheel *) event_info;
2482 st->info.x = st->zoom_wheel->canvas.x;
2483 st->info.y = st->zoom_wheel->canvas.y;
2485 if (st->zoom_wheel->z < 0) /* zoom in */
2486 st->info.zoom += (wd->zoom_finger_factor * wd->zoom_wheel_factor);
2488 if (st->zoom_wheel->z > 0) /* zoom out */
2489 st->info.zoom -= (wd->zoom_finger_factor * wd->zoom_wheel_factor);
2491 if (st->info.zoom < 0.0)
2492 st->info.zoom = 0.0;
2494 ev_flag = _set_state(gesture_zoom, s, &st->info, force);
2495 consume_event(wd, event_info, event_type, ev_flag);
2507 * This function is used to test zoom gesture.
2508 * user may combine zoom, rotation together.
2509 * so its possible that both will be detected from input.
2510 * (both are two-finger movement-oriented gestures)
2512 * @param obj The gesture-layer object.
2513 * @param event_info Pointer to recent input event.
2514 * @param event_type Recent input event type.
2515 * @param g_type what Gesture we are testing.
2517 * @ingroup Elm_Gesture_Layer
2520 _zoom_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2521 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2525 Widget_Data *wd = elm_widget_data_get(obj);
2527 if (!wd->gesture[g_type]) return;
2529 Gesture_Info *gesture_zoom = wd->gesture[g_type];
2530 Zoom_Type *st = gesture_zoom->data;
2533 { /* Allocated once on first time, used for zoom data */
2534 st = calloc(1, sizeof(Zoom_Type));
2535 gesture_zoom->data = st;
2536 _zoom_test_reset(gesture_zoom);
2539 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2542 case EVAS_CALLBACK_MOUSE_DOWN:
2543 consume_event(wd, event_info, event_type, ev_flag);
2544 memcpy(&st->zoom_st, pe, sizeof(Pointer_Event));
2548 case EVAS_CALLBACK_MOUSE_MOVE:
2549 consume_event(wd, event_info, event_type, ev_flag);
2550 if (!st->zoom_st.timestamp)
2551 return; /* we got move event before down event.Ignore it */
2553 consume_event(wd, event_info, event_type, ev_flag);
2554 memcpy(&st->zoom_mv, pe, sizeof(Pointer_Event));
2556 /* We match this point to previous multi-move or multi-down event */
2557 if (st->zoom_mv1.timestamp)
2559 st->info.zoom = compute_zoom(st,
2560 st->zoom_mv.x, st->zoom_mv.y, st->zoom_mv.timestamp,
2561 st->zoom_mv1.x, st->zoom_mv1.y, st->zoom_mv1.timestamp,
2562 wd->zoom_finger_factor);
2566 if (st->zoom_st1.timestamp)
2568 st->info.zoom = compute_zoom(st,
2569 st->zoom_mv.x, st->zoom_mv.y, st->zoom_mv.timestamp,
2570 st->zoom_st1.x, st->zoom_st1.y, st->zoom_st1.timestamp,
2571 wd->zoom_finger_factor);
2577 case EVAS_CALLBACK_MULTI_MOVE:
2578 if (!st->zoom_st1.timestamp)
2579 return; /* We get move event before down event.Ignore it */
2581 consume_event(wd, event_info, event_type, ev_flag);
2582 if (st->zoom_mv1.timestamp)
2584 if (st->zoom_mv1.device !=
2585 ((Evas_Event_Multi_Move *) event_info)->device)
2586 { /* A third finger on screen, abort zoom */
2587 ev_flag = _set_state(gesture_zoom,
2588 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2589 consume_event(wd, event_info, event_type, ev_flag);
2595 memcpy(&st->zoom_mv1, pe, sizeof(Pointer_Event));
2597 /* Match this point to previous mouse-move or mouse-down event */
2598 if (st->zoom_mv.timestamp)
2600 st->info.zoom = compute_zoom(st,
2601 st->zoom_mv1.x, st->zoom_mv1.y, st->zoom_mv1.timestamp,
2602 st->zoom_mv.x, st->zoom_mv.y, st->zoom_mv.timestamp,
2603 wd->zoom_finger_factor);
2607 if (st->zoom_st.timestamp)
2609 st->info.zoom = compute_zoom(st,
2610 st->zoom_mv1.x, st->zoom_mv1.y, st->zoom_mv1.timestamp,
2611 st->zoom_st.x, st->zoom_st.y, st->zoom_st.timestamp,
2612 wd->zoom_finger_factor);
2618 case EVAS_CALLBACK_MULTI_DOWN:
2619 consume_event(wd, event_info, event_type, ev_flag);
2620 memcpy(&st->zoom_st1, pe, sizeof(Pointer_Event));
2623 case EVAS_CALLBACK_MOUSE_UP:
2624 case EVAS_CALLBACK_MULTI_UP:
2625 /* Reset timestamp of finger-up.This is used later
2626 by _zoom_test_reset() to retain finger-down data */
2627 consume_event(wd, event_info, event_type, ev_flag);
2628 if (((st->zoom_wheel) || (st->zoom_base)) &&
2629 (st->zoom_distance_tolerance == 0))
2631 ev_flag = _set_state(gesture_zoom, ELM_GESTURE_STATE_END,
2632 &st->info, EINA_FALSE);
2633 consume_event(wd, event_info, event_type, ev_flag);
2638 /* if we got here not a ZOOM */
2639 if (gesture_zoom->state != ELM_GESTURE_STATE_UNDEFINED)
2640 { /* Must be != undefined, if gesture started */
2641 ev_flag = _set_state(gesture_zoom,
2642 ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
2643 consume_event(wd, event_info, event_type, ev_flag);
2646 _zoom_test_reset(gesture_zoom);
2655 if (!st->zoom_distance_tolerance)
2656 if ((event_type == EVAS_CALLBACK_MOUSE_MOVE) ||
2657 (event_type == EVAS_CALLBACK_MULTI_MOVE))
2659 { /* Zoom broke tolerance, report move */
2660 double d = st->info.zoom - st->next_step;
2664 /* START For contiunues gesture: compute momentum */
2665 _set_momentum(&st->momentum1, st->zoom_st.x, st->zoom_st.y,
2666 st->zoom_mv.x, st->zoom_mv.y,st->zoom_st.timestamp, st->zoom_st.timestamp,
2667 st->zoom_mv.timestamp);
2669 _set_momentum(&st->momentum2, st->zoom_st1.x, st->zoom_st1.y,
2670 st->zoom_mv1.x, st->zoom_mv1.y,st->zoom_st1.timestamp, st->zoom_st1.timestamp,
2671 st->zoom_mv1.timestamp);
2673 if (!(st->momentum1.mx + st->momentum1.my + st->momentum2.mx + st->momentum2.my))
2675 ev_flag = _set_state(gesture_zoom, ELM_GESTURE_STATE_END,
2676 &st->info, EINA_FALSE);
2679 /* END For contiunues gesture: compute momentum */
2682 if (d >= wd->zoom_step)
2683 { /* Report move in steps */
2684 st->next_step = st->info.zoom;
2686 ev_flag = _set_state(gesture_zoom, ELM_GESTURE_STATE_MOVE,
2687 &st->info, EINA_TRUE);
2688 consume_event(wd, event_info, event_type, ev_flag);
2695 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
2696 (event_type == EVAS_CALLBACK_MULTI_DOWN))
2697 { /* report zoom start finger location is zoom-center temporarly */
2698 /* Zoom may have started with mouse-wheel, don't report START */
2699 if ((st->zoom_st.timestamp) && (st->zoom_st1.timestamp))
2700 { /* Set zoom-base after BOTH down events were recorded */
2701 /* Compute length of line between fingers on zoom start */
2702 st->info.zoom = 1.0;
2703 st->zoom_base = get_finger_gap_length(st->zoom_st1.x,
2704 st->zoom_st1.y, st->zoom_st.x, st->zoom_st.y,
2705 &st->info.x, &st->info.y);
2707 st->info.radius = st->zoom_base / 2;
2709 if ((gesture_zoom->state != ELM_GESTURE_STATE_START) &&
2710 (gesture_zoom->state != ELM_GESTURE_STATE_MOVE))
2711 { /* Report START only when two fingers touching */
2712 ev_flag = _set_state(gesture_zoom,
2713 ELM_GESTURE_STATE_START, &st->info, EINA_FALSE);
2714 consume_event(wd, event_info, event_type, ev_flag);
2723 _get_rotate_properties(Rotate_Type *st,
2724 Evas_Coord x1, Evas_Coord y1, unsigned int tm1,
2725 Evas_Coord x2, Evas_Coord y2, unsigned int tm2,
2728 st->info.radius = get_finger_gap_length(x1, y1, x2, y2,
2729 &st->info.x, &st->info.y) / 2;
2731 *angle = get_angle(x1, y1, x2, y2);
2732 #if 0 /* (NOT YET SUPPORTED) */
2733 if (angle == &st->info.angle)
2734 { /* Compute momentum: TODO: bug when breaking 0, 360 values */
2735 st->info.momentum = (((*angle) - st->info.base_angle) /
2736 (fabs(tm2 - tm1))) * 1000;
2739 st->info.momentum = 0;
2749 * This function is used to test rotation gesture.
2750 * user may combine zoom, rotation together.
2751 * so its possible that both will be detected from input.
2752 * (both are two-finger movement-oriented gestures)
2754 * @param obj The gesture-layer object.
2755 * @param event_info Pointer to recent input event.
2756 * @param event_type Recent input event type.
2757 * @param g_type what Gesture we are testing.
2759 * @ingroup Elm_Gesture_Layer
2762 _rotate_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
2763 Evas_Callback_Type event_type, Elm_Gesture_Types g_type)
2768 Widget_Data *wd = elm_widget_data_get(obj);
2770 if (!wd->gesture[g_type]) return;
2772 Gesture_Info *gesture = wd->gesture[g_type];
2773 Rotate_Type *st = gesture->data;
2778 { /* Allocated once on first time */
2779 st = calloc(1, sizeof(Rotate_Type));
2781 _rotate_test_reset(gesture);
2785 Evas_Event_Flags ev_flag = EVAS_EVENT_FLAG_NONE;
2789 case EVAS_CALLBACK_MOUSE_DOWN:
2790 consume_event(wd, event_info, event_type, ev_flag);
2791 memcpy(&st->rotate_st, pe, sizeof(Pointer_Event));
2795 case EVAS_CALLBACK_MOUSE_MOVE:
2796 if (!st->rotate_st.timestamp)
2797 break; /* We got move event before down event.Ignore it */
2799 consume_event(wd, event_info, event_type, ev_flag);
2800 memcpy(&st->rotate_mv, pe, sizeof(Pointer_Event));
2802 /* Match this point to previous multi-move or multi-down event */
2803 if (st->rotate_mv1.timestamp)
2804 { /* Compute rotation angle and report to user */
2805 _get_rotate_properties(st,
2806 st->rotate_mv.x, st->rotate_mv.y, st->rotate_mv.timestamp,
2807 st->rotate_mv1.x, st->rotate_mv1.y, st->rotate_mv1.timestamp,
2812 if (st->rotate_st1.timestamp)
2813 { /* Compute rotation angle and report to user */
2814 _get_rotate_properties(st,
2815 st->rotate_mv.x, st->rotate_mv.y, st->rotate_mv.timestamp,
2816 st->rotate_st1.x, st->rotate_st1.y, st->rotate_st1.timestamp,
2823 case EVAS_CALLBACK_MULTI_MOVE:
2824 if (!st->rotate_st1.timestamp)
2825 break; /* We got move event before down event.Ignore it */
2827 consume_event(wd, event_info, event_type, ev_flag);
2828 if (st->rotate_mv1.timestamp)
2830 if (st->rotate_mv1.device !=
2831 ((Evas_Event_Multi_Move *) event_info)->device)
2832 { /* A third finger on screen, abort rotate */
2833 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2834 &st->info, EINA_FALSE);
2835 consume_event(wd, event_info, event_type, ev_flag);
2841 memcpy(&st->rotate_mv1, pe, sizeof(Pointer_Event));
2843 /* Match this point to previous mouse-move or mouse-down event */
2844 if (st->rotate_mv.timestamp)
2845 { /* Compute rotation angle and report to user */
2846 _get_rotate_properties(st,
2847 st->rotate_mv.x, st->rotate_mv.y, st->rotate_mv.timestamp,
2848 st->rotate_mv1.x, st->rotate_mv1.y, st->rotate_mv1.timestamp,
2853 if (st->rotate_st.timestamp)
2854 { /* Compute rotation angle and report to user */
2855 _get_rotate_properties(st,
2856 st->rotate_st.x, st->rotate_st.y, st->rotate_st.timestamp,
2857 st->rotate_mv1.x, st->rotate_mv1.y, st->rotate_mv1.timestamp,
2864 case EVAS_CALLBACK_MULTI_DOWN:
2865 consume_event(wd, event_info, event_type, ev_flag);
2866 memcpy(&st->rotate_st1, pe, sizeof(Pointer_Event));
2867 _get_rotate_properties(st,
2868 st->rotate_st.x, st->rotate_st.y, st->rotate_st.timestamp,
2869 st->rotate_st1.x, st->rotate_st1.y, st->rotate_st1.timestamp,
2873 case EVAS_CALLBACK_MOUSE_UP:
2874 case EVAS_CALLBACK_MULTI_UP:
2875 consume_event(wd, event_info, event_type, ev_flag);
2876 /* Reset timestamp of finger-up.This is used later
2877 by rotate_test_reset() to retain finger-down data */
2878 if (st->rotate_angular_tolerance < 0)
2880 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2881 &st->info, EINA_FALSE);
2882 consume_event(wd, event_info, event_type, ev_flag);
2887 if (gesture->state != ELM_GESTURE_STATE_UNDEFINED)
2888 { /* Must be != undefined, if gesture started */
2889 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
2890 &st->info, EINA_FALSE);
2891 consume_event(wd, event_info, event_type, ev_flag);
2894 _rotate_test_reset(gesture);
2901 if ((event_type == EVAS_CALLBACK_MOUSE_MOVE) ||
2902 (event_type == EVAS_CALLBACK_MULTI_MOVE))
2903 { /* Report MOVE or ABORT for *MOVE event */
2904 if (rotation_broke_tolerance(st))
2905 { /* Rotation broke tolerance, report move */
2906 double d = st->info.angle - st->next_step;
2910 /* START For contiunues gesture: compute momentum */
2911 _set_momentum(&st->momentum1, st->rotate_st.x, st->rotate_st.y,
2912 st->rotate_mv.x, st->rotate_mv.y,st->rotate_st.timestamp, st->rotate_st.timestamp,
2913 st->rotate_mv.timestamp);
2915 _set_momentum(&st->momentum2, st->rotate_st1.x, st->rotate_st1.y,
2916 st->rotate_mv1.x, st->rotate_mv1.y,st->rotate_st1.timestamp, st->rotate_st1.timestamp,
2917 st->rotate_mv1.timestamp);
2919 if (!(st->momentum1.mx + st->momentum1.my + st->momentum2.mx + st->momentum2.my))
2921 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_END,
2922 &st->info, EINA_FALSE);
2925 /* END For contiunues gesture: compute momentum */
2927 if (d >= wd->rotate_step)
2928 { /* Report move in steps */
2929 st->next_step = st->info.angle;
2931 ev_flag = _set_state(gesture,
2932 ELM_GESTURE_STATE_MOVE, &st->info, EINA_TRUE);
2933 consume_event(wd, event_info, event_type, ev_flag);
2940 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
2941 (event_type == EVAS_CALLBACK_MULTI_DOWN))
2943 if ((st->rotate_st.timestamp) && (st->rotate_st1.timestamp))
2944 { /* two-fingers on touch screen - report rotate start */
2945 /* Set base angle, then report start. */
2946 _get_rotate_properties(st,
2947 st->rotate_st.x, st->rotate_st.y, st->rotate_st.timestamp,
2948 st->rotate_st1.x, st->rotate_st1.y, st->rotate_st1.timestamp,
2949 &st->info.base_angle);
2951 ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
2952 &st->info, EINA_FALSE);
2953 consume_event(wd, event_info, event_type, ev_flag);
2963 * This function is used to save input events in an abstract struct
2964 * to be used later by getsure-testing functions.
2966 * @param data The gesture-layer object.
2967 * @param event_info Pointer to recent input event.
2968 * @param event_type Recent input event type.
2969 * @param pe The abstract data-struct (output).
2971 * @ingroup Elm_Gesture_Layer
2974 _make_pointer_event(void *data, void *event_info,
2975 Evas_Callback_Type event_type, Pointer_Event *pe)
2977 Widget_Data *wd = elm_widget_data_get(data);
2978 if (!wd) return EINA_FALSE;
2982 case EVAS_CALLBACK_MOUSE_DOWN:
2983 pe->x = ((Evas_Event_Mouse_Down *) event_info)->canvas.x;
2984 pe->y = ((Evas_Event_Mouse_Down *) event_info)->canvas.y;
2985 pe->timestamp = ((Evas_Event_Mouse_Down *) event_info)->timestamp;
2986 pe->device = ELM_MOUSE_DEVICE;
2989 case EVAS_CALLBACK_MOUSE_UP:
2990 pe->x = ((Evas_Event_Mouse_Up *) event_info)->canvas.x;
2991 pe->y = ((Evas_Event_Mouse_Up *) event_info)->canvas.y;
2992 pe->timestamp = ((Evas_Event_Mouse_Up *) event_info)->timestamp;
2993 pe->device = ELM_MOUSE_DEVICE;
2996 case EVAS_CALLBACK_MOUSE_MOVE:
2997 pe->x = ((Evas_Event_Mouse_Move *) event_info)->cur.canvas.x;
2998 pe->y = ((Evas_Event_Mouse_Move *) event_info)->cur.canvas.y;
2999 pe->timestamp = ((Evas_Event_Mouse_Move *) event_info)->timestamp;
3000 pe->device = ELM_MOUSE_DEVICE;
3003 case EVAS_CALLBACK_MULTI_DOWN:
3004 pe->x = ((Evas_Event_Multi_Down *) event_info)->canvas.x;
3005 pe->y = ((Evas_Event_Multi_Down *) event_info)->canvas.y;
3006 pe->timestamp = ((Evas_Event_Multi_Down *) event_info)->timestamp;
3007 pe->device = ((Evas_Event_Multi_Down *) event_info)->device;
3010 case EVAS_CALLBACK_MULTI_UP:
3011 pe->x = ((Evas_Event_Multi_Up *) event_info)->canvas.x;
3012 pe->y = ((Evas_Event_Multi_Up *) event_info)->canvas.y;
3013 pe->timestamp = ((Evas_Event_Multi_Up *) event_info)->timestamp;
3014 pe->device = ((Evas_Event_Multi_Up *) event_info)->device;
3017 case EVAS_CALLBACK_MULTI_MOVE:
3018 pe->x = ((Evas_Event_Multi_Move *) event_info)->cur.canvas.x;
3019 pe->y = ((Evas_Event_Multi_Move *) event_info)->cur.canvas.y;
3020 pe->timestamp = ((Evas_Event_Multi_Move *) event_info)->timestamp;
3021 pe->device = ((Evas_Event_Multi_Move *) event_info)->device;
3028 pe->event_type = event_type;
3035 * This function restartes line, flick, zoom and rotate gestures
3036 * when gesture-layer continues-gestures enabled.
3037 * Example of continues-gesture:
3038 * When doing a line, user stops moving finger but keeps fingers on touch.
3039 * This will cause line-end, then as user continues moving his finger
3040 * it re-starts line gesture.
3041 * When continue mode is disabled, user has to lift finger from touch
3042 * to end a gesture. Them touch-again to start a new one.
3044 * @param data The gesture-layer object.
3045 * @param wd gesture layer widget data.
3046 * @param states_reset flag that marks gestures were reset in history clear.
3048 * @ingroup Elm_Gesture_Layer
3050 void continues_gestures_restart(void *data, Eina_Bool states_reset)
3052 Widget_Data *wd = elm_widget_data_get(data);
3055 /* Run through events to restart gestures */
3057 Eina_Bool n_lines, n_flicks, zoom, rotate;
3058 #if defined(DEBUG_GESTURE_LAYER)
3060 printf("Gesture | State | is tested\n");
3061 for(i = ELM_GESTURE_N_TAPS; i < ELM_GESTURE_LAST; i++)
3065 printf(" %d %d %d\n", i, g->state, g->test);
3068 /* We turn-on flag for finished, aborted, not-started gestures */
3069 g = wd->gesture[ELM_GESTURE_N_LINES];
3070 n_lines = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3071 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3074 _line_test_reset(wd->gesture[ELM_GESTURE_N_LINES]);
3075 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3079 g = wd->gesture[ELM_GESTURE_N_FLICKS];
3080 n_flicks = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3081 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3084 _line_test_reset(wd->gesture[ELM_GESTURE_N_FLICKS]);
3085 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3089 g = wd->gesture[ELM_GESTURE_ZOOM];
3090 zoom = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3091 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3094 _zoom_test_reset(wd->gesture[ELM_GESTURE_ZOOM]);
3095 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3100 g = wd->gesture[ELM_GESTURE_ROTATE];
3101 rotate = (g) ? ((states_reset) | ((g->state != ELM_GESTURE_STATE_START)
3102 && (g->state != ELM_GESTURE_STATE_MOVE))) : EINA_FALSE;
3105 _rotate_test_reset(wd->gesture[ELM_GESTURE_ROTATE]);
3106 _set_state(g, ELM_GESTURE_STATE_UNDEFINED, NULL, EINA_FALSE);
3112 EINA_LIST_FOREACH(wd->recent_device_event, l, p)
3113 { /* Generate a DOWN event */
3114 Evas_Callback_Type e_type = p->event_type;
3115 if(p->event_type == EVAS_CALLBACK_MULTI_MOVE)
3116 e_type = EVAS_CALLBACK_MULTI_DOWN;
3118 if(p->event_type == EVAS_CALLBACK_MOUSE_MOVE)
3119 e_type = EVAS_CALLBACK_MOUSE_DOWN;
3122 if (n_lines && (IS_TESTED(ELM_GESTURE_N_LINES)))
3123 _n_line_test(data, p, NULL, e_type, ELM_GESTURE_N_LINES);
3125 if (n_flicks && (IS_TESTED(ELM_GESTURE_N_FLICKS)))
3126 _n_line_test(data, p, NULL, e_type, ELM_GESTURE_N_FLICKS);
3128 if (zoom && (IS_TESTED(ELM_GESTURE_ZOOM)))
3129 _zoom_test(data, p, NULL, e_type, ELM_GESTURE_ZOOM);
3131 if (rotate && (IS_TESTED(ELM_GESTURE_ROTATE)))
3132 _rotate_test(data, p, NULL, e_type, ELM_GESTURE_ROTATE);
3139 * This function the core-function where input handling is done.
3140 * Here we get user input and stream it to gesture testing.
3141 * We notify user about any gestures with new state:
3143 * START - gesture started.
3144 * MOVE - gesture is ongoing.
3145 * END - gesture was completed.
3146 * ABORT - gesture was aborted after START, MOVE (will NOT be completed)
3148 * We also check if a gesture was detected, then reset event history
3149 * If no gestures were found we reset gesture test flag
3150 * after streaming event-history to widget.
3151 * (stream to the widget all events not consumed as a gesture)
3153 * @param data The gesture-layer object.
3154 * @param event_info Pointer to recent input event.
3155 * @param event_type Recent input event type.
3157 * @ingroup Elm_Gesture_Layer
3160 _event_process(void *data, Evas_Object *obj __UNUSED__,
3161 void *event_info, Evas_Callback_Type event_type)
3164 Pointer_Event *pe = NULL;
3165 Widget_Data *wd = elm_widget_data_get(data);
3168 /* Start testing candidate gesture from here */
3169 if (_make_pointer_event(data, event_info, event_type, &_pe))
3172 if (IS_TESTED(ELM_GESTURE_N_LONG_TAPS))
3173 _n_long_tap_test(data, pe, event_info, event_type,
3174 ELM_GESTURE_N_LONG_TAPS);
3176 if (IS_TESTED(ELM_GESTURE_N_TAPS))
3177 _dbl_click_test(data, pe, event_info, event_type,
3178 ELM_GESTURE_N_TAPS, 1);
3180 if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
3181 _dbl_click_test(data, pe, event_info, event_type,
3182 ELM_GESTURE_N_DOUBLE_TAPS, 2);
3184 if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
3185 _dbl_click_test(data, pe, event_info, event_type,
3186 ELM_GESTURE_N_TRIPLE_TAPS, 3);
3188 if (IS_TESTED(ELM_GESTURE_MOMENTUM))
3189 _momentum_test(data, pe, event_info, event_type,
3190 ELM_GESTURE_MOMENTUM);
3192 if (IS_TESTED(ELM_GESTURE_N_LINES))
3193 _n_line_test(data, pe, event_info, event_type, ELM_GESTURE_N_LINES);
3195 if (IS_TESTED(ELM_GESTURE_N_FLICKS))
3196 _n_line_test(data, pe, event_info, event_type, ELM_GESTURE_N_FLICKS);
3198 if (IS_TESTED(ELM_GESTURE_ZOOM))
3199 _zoom_test(data, pe, event_info, event_type, ELM_GESTURE_ZOOM);
3201 if (IS_TESTED(ELM_GESTURE_ZOOM))
3202 _zoom_with_wheel_test(data, event_info, event_type, ELM_GESTURE_ZOOM);
3204 if (IS_TESTED(ELM_GESTURE_ROTATE))
3205 _rotate_test(data, pe, event_info, event_type, ELM_GESTURE_ROTATE);
3207 if (_get_event_flag(event_info, event_type) & EVAS_EVENT_FLAG_ON_HOLD)
3208 _event_history_add(data, event_info, event_type);
3209 else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
3210 (event_type == EVAS_CALLBACK_MULTI_UP))
3212 Eina_List *pending = _device_is_pending(wd->pending, event_info, event_type);
3215 consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_ON_HOLD);
3216 _event_history_add(data, event_info, event_type);
3220 /* Log event to restart gestures */
3221 wd->recent_device_event = _add_recent_device_event(wd->recent_device_event, &_pe);
3223 /* we maintain list of touched devices*/
3224 if ((event_type == EVAS_CALLBACK_MOUSE_DOWN) ||
3225 (event_type == EVAS_CALLBACK_MULTI_DOWN))
3227 wd->touched = _add_touched_device(wd->touched, pe);
3229 else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
3230 (event_type == EVAS_CALLBACK_MULTI_UP))
3232 wd->touched = _remove_touched_device(wd->touched, pe);
3235 /* Report current states and clear history if needed */
3236 Eina_Bool states_reset = _clear_if_finished(data);
3237 continues_gestures_restart(data, states_reset);
3242 * For all _mouse_* / multi_* functions wethen send this event to
3243 * _event_process function.
3245 * @param data The gesture-layer object.
3246 * @param event_info Pointer to recent input event.
3248 * @ingroup Elm_Gesture_Layer
3251 _mouse_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3254 Widget_Data *wd = elm_widget_data_get(data);
3256 if (((Evas_Event_Mouse_Down *) event_info)->button != 1)
3257 return; /* We only process left-click at the moment */
3259 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_DOWN);
3263 _mouse_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3266 Widget_Data *wd = elm_widget_data_get(data);
3269 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_MOVE);
3273 _key_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3276 Widget_Data *wd = elm_widget_data_get(data);
3279 _event_process(data, obj, event_info, EVAS_CALLBACK_KEY_DOWN);
3283 _key_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3286 Widget_Data *wd = elm_widget_data_get(data);
3289 _event_process(data, obj, event_info, EVAS_CALLBACK_KEY_UP);
3293 _mouse_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3296 Widget_Data *wd = elm_widget_data_get(data);
3299 if (((Evas_Event_Mouse_Up *) event_info)->button != 1)
3300 return; /* We only process left-click at the moment */
3302 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_UP);
3306 _mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3309 Widget_Data *wd = elm_widget_data_get(data);
3312 _event_process(data, obj, event_info, EVAS_CALLBACK_MOUSE_WHEEL);
3316 _multi_down(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3319 Widget_Data *wd = elm_widget_data_get(data);
3322 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_DOWN);
3326 _multi_move(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3329 Widget_Data *wd = elm_widget_data_get(data);
3332 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_MOVE);
3336 _multi_up(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__,
3339 Widget_Data *wd = elm_widget_data_get(data);
3342 _event_process(data, obj, event_info, EVAS_CALLBACK_MULTI_UP);
3346 elm_gesture_layer_hold_events_get(Evas_Object *obj)
3348 Widget_Data *wd = elm_widget_data_get(obj);
3349 if (!wd) return EINA_FALSE;
3351 return !wd->repeat_events;
3355 elm_gesture_layer_hold_events_set(Evas_Object *obj, Eina_Bool r)
3357 Widget_Data *wd = elm_widget_data_get(obj);
3360 wd->repeat_events = !r;
3364 elm_gesture_layer_zoom_step_set(Evas_Object *obj, double s)
3366 Widget_Data *wd = elm_widget_data_get(obj);
3376 elm_gesture_layer_rotate_step_set(Evas_Object *obj, double s)
3378 Widget_Data *wd = elm_widget_data_get(obj);
3384 wd->rotate_step = s;
3388 elm_gesture_layer_attach(Evas_Object *obj, Evas_Object *t)
3390 Widget_Data *wd = elm_widget_data_get(obj);
3391 if (!wd) return EINA_FALSE;
3396 /* if was attached before, unregister callbacks first */
3398 _unregister_callbacks(obj);
3402 _register_callbacks(obj);
3407 elm_gesture_layer_cb_set(Evas_Object *obj, Elm_Gesture_Types idx,
3408 Elm_Gesture_State cb_type, Elm_Gesture_Event_Cb cb, void *data)
3410 Widget_Data *wd = elm_widget_data_get(obj);
3414 if (!wd->gesture[idx])
3415 wd->gesture[idx] = calloc(1, sizeof(Gesture_Info));
3416 if (!wd->gesture[idx]) return;
3418 p = wd->gesture[idx];
3421 p->fn[cb_type].cb = cb;
3422 p->fn[cb_type].user_data = data;
3423 p->state = ELM_GESTURE_STATE_UNDEFINED;
3428 _disable_hook(Evas_Object *obj)
3430 if (elm_widget_disabled_get(obj))
3431 _unregister_callbacks(obj);
3433 _register_callbacks(obj);
3437 elm_gesture_layer_add(Evas_Object *parent)
3443 EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
3445 wd = ELM_NEW(Widget_Data);
3446 e = evas_object_evas_get(parent);
3447 if (!e) return NULL;
3448 obj = elm_widget_add(e);
3449 ELM_SET_WIDTYPE(widtype, "gesture_layer");
3450 elm_widget_type_set(obj, "gesture_layer");
3451 elm_widget_sub_object_add(parent, obj);
3452 elm_widget_data_set(obj, wd);
3453 elm_widget_del_hook_set(obj, _del_hook);
3454 elm_widget_disable_hook_set(obj, _disable_hook);
3457 wd->line_min_length =_elm_config->glayer_line_min_length * elm_finger_size_get();
3458 wd->zoom_distance_tolerance = _elm_config->glayer_zoom_distance_tolerance * elm_finger_size_get();
3459 wd->line_distance_tolerance = _elm_config->glayer_line_distance_tolerance * elm_finger_size_get();
3460 wd->zoom_finger_factor = _elm_config->glayer_zoom_finger_factor;
3461 wd->zoom_wheel_factor = _elm_config->glayer_zoom_wheel_factor; /* mouse wheel zoom steps */
3462 wd->rotate_angular_tolerance = _elm_config->glayer_rotate_angular_tolerance;
3463 wd->line_angular_tolerance = _elm_config->glayer_line_angular_tolerance;
3464 wd->flick_time_limit_ms = _elm_config->glayer_flick_time_limit_ms;
3465 wd->long_tap_start_timeout = _elm_config->glayer_long_tap_start_timeout;
3466 wd->repeat_events = EINA_TRUE;
3468 #if defined(DEBUG_GESTURE_LAYER)
3469 printf("size of Gestures = <%d>\n", sizeof(wd->gesture));
3470 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", 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);
3472 memset(wd->gesture, 0, sizeof(wd->gesture));