[gesture_layer] opensource merge (r71200)
[framework/uifw/elementary.git] / src / lib / elm_gesture_layer.c
index 3d6a61a..68b7758 100644 (file)
@@ -11,6 +11,8 @@
 #define ELM_GESTURE_MULTI_TIMEOUT 50
 #define ELM_GESTURE_MINIMUM_MOMENTUM 0.001
 
+#define ELM_GESTURE_TAP_TIMEOUT 0.2
+
 /* Some Trigo values */
 #define RAD_90DEG  M_PI_2
 #define RAD_180DEG M_PI
@@ -408,10 +410,12 @@ consume_event(Widget_Data *wd, void *event_info,
 {  /* Mark EVAS_EVENT_FLAG_ON_HOLD on events that are used by gesture layer */
    /* ev_flags != EVAS_EVENT_FLAG_NONE means target used event and g-layer  */
    /* should not refeed this event.                                         */
-   if(!event_info)
+   if (!event_info)
      return;  /* This happens when restarting gestures  */
 
-   if ((ev_flags) || (!wd->repeat_events))
+   if (!wd->repeat_events) ev_flags |= EVAS_EVENT_FLAG_ON_HOLD;
+
+   if (ev_flags)
      {
         switch(event_type)
           {
@@ -615,10 +619,15 @@ _tap_gestures_test_reset(Gesture_Info *gesture)
      return;
 
    Widget_Data *wd = elm_widget_data_get(gesture->obj);
-   wd->dbl_timeout = NULL;
    Eina_List *data;
    Pointer_Event *pe;
 
+   if (wd->dbl_timeout)
+     {
+        ecore_timer_del(wd->dbl_timeout);
+        wd->dbl_timeout = NULL;
+     }
+
    if (!gesture->data)
      return;
 
@@ -1162,32 +1171,55 @@ _record_pointer_event(Taps_Type *st, Eina_List *pe_list, Pointer_Event *pe,
 /**
  * @internal
  *
- * This function sets state a tap-gesture to END or ABORT
+ * This function checks if the tap gesture is done.
  *
  * @param data gesture info pointer
+ * @return EINA_TRUE if it is done.
  *
  * @ingroup Elm_Gesture_Layer
  */
-static void
-_tap_gesture_finish(void *data)
-{  /* This function will test each tap gesture when timer expires */
-   Gesture_Info *gesture = data;
-   Elm_Gesture_State s = ELM_GESTURE_STATE_END;
+static Eina_Bool
+_tap_gesture_check_finish(Gesture_Info *gesture)
+{
    /* Here we check if taps-gesture was completed successfuly */
    /* Count how many taps were recieved on each device then   */
    /* determine if it matches n_taps_needed defined on START  */
    Taps_Type *st = gesture->data;
    Eina_List *l;
    Eina_List *pe_list;
+   if (!st || !st->l) return EINA_FALSE;
    EINA_LIST_FOREACH(st->l, l, pe_list)
      {
         if (eina_list_count(pe_list) != st->n_taps_needed)
           {  /* No match taps number on device, ABORT */
-             s = ELM_GESTURE_STATE_ABORT;
-             break;
+             return EINA_FALSE;
           }
      }
 
+   return EINA_TRUE;
+}
+
+/**
+ * @internal
+ *
+ * This function sets state a tap-gesture to END or ABORT
+ *
+ * @param data gesture info pointer
+ *
+ * @ingroup Elm_Gesture_Layer
+ */
+static void
+_tap_gesture_finish(void *data)
+{  /* This function will test each tap gesture when timer expires */
+   Elm_Gesture_State s = ELM_GESTURE_STATE_ABORT;
+   Gesture_Info *gesture = data;
+   Taps_Type *st = gesture->data;
+
+   if (_tap_gesture_check_finish(gesture))
+     {
+        s = ELM_GESTURE_STATE_END;
+     }
+
    st->info.n = eina_list_count(st->l);
    _set_state(gesture, s, gesture->info, EINA_FALSE);
    _tap_gestures_test_reset(gesture);
@@ -1210,13 +1242,13 @@ _multi_tap_timeout(void *data)
    if (!wd) return EINA_FALSE;
 
    if (IS_TESTED(ELM_GESTURE_N_TAPS))
-     _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TAPS]);
+      _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TAPS]);
 
    if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
-   _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
+      _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS]);
 
    if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
-   _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
+      _tap_gesture_finish(wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS]);
 
    _clear_if_finished(data);
    wd->dbl_timeout = NULL;
@@ -1250,7 +1282,7 @@ _long_tap_timeout(void *data)
 /**
  * @internal
  *
- * This function checks if a tap gesture should start
+ * This function checks the state of a tap gesture.
  *
  * @param wd Gesture Layer Widget Data.
  * @param pe The recent input event as stored in pe struct.
@@ -1259,15 +1291,16 @@ _long_tap_timeout(void *data)
  * @param gesture what gesture is tested
  * @param how many taps for this gesture (1, 2 or 3)
  *
- * @return Flag to determine if we need to set a timer for finish
- *
  * @ingroup Elm_Gesture_Layer
  */
-static Eina_Bool
-_tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
+static void
+_tap_gesture_test(Widget_Data *wd, Pointer_Event *pe,
       void *event_info, Evas_Callback_Type event_type,
       Gesture_Info *gesture, int taps)
 {  /* Here we fill Tap struct */
+   if (!pe)
+      return;
+
    Taps_Type *st = gesture->data;
    if (!st)
      {  /* Allocated once on first time */
@@ -1293,10 +1326,20 @@ _tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
                     &st->info, EINA_FALSE);
               consume_event(wd, event_info, event_type, ev_flag);
 
-              return EINA_FALSE;
+              return;
            }
 
          pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
+         if (!wd->dbl_timeout)
+           {
+              wd->dbl_timeout = ecore_timer_add(ELM_GESTURE_TAP_TIMEOUT,
+                    _multi_tap_timeout, gesture->obj);
+           }
+         else
+           {
+              ecore_timer_reset(wd->dbl_timeout);
+           }
+
          if ((pe->device == 0) && (eina_list_count(pe_list) == 1))
            {  /* This is the first mouse down we got */
               ev_flag = _set_state(gesture, ELM_GESTURE_STATE_START,
@@ -1305,7 +1348,13 @@ _tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
 
               st->n_taps_needed = taps * 2; /* count DOWN and UP */
 
-              return EINA_TRUE;
+              return;
+           }
+         else if (eina_list_count(pe_list) > st->n_taps_needed)
+           {
+              /* If we arleady got too many touches for this gesture. */
+              ev_flag = _set_state(gesture, ELM_GESTURE_STATE_ABORT,
+                    &st->info, EINA_FALSE);
            }
 
          break;
@@ -1314,9 +1363,23 @@ _tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
       case EVAS_CALLBACK_MOUSE_UP:
          pe_list = eina_list_search_unsorted(st->l, compare_pe_device, pe);
          if (!pe_list)
-           return EINA_FALSE;
+           return;
 
          pe_list = _record_pointer_event(st, pe_list, pe, wd, event_info, event_type);
+
+         if (((gesture->g_type == ELM_GESTURE_N_TAPS) &&
+                  !IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS) &&
+                  !IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS)) ||
+               ((gesture->g_type == ELM_GESTURE_N_DOUBLE_TAPS) &&
+                !IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS)))
+           {
+              if (_tap_gesture_check_finish(gesture))
+                {
+                   _tap_gesture_finish(gesture);
+                   return;
+                }
+           }
+
          break;
 
       case EVAS_CALLBACK_MULTI_MOVE:
@@ -1337,52 +1400,7 @@ _tap_gesture_start(Widget_Data *wd, Pointer_Event *pe,
          break;
 
       default:
-         return EINA_FALSE;
-     }
-
-   return EINA_FALSE;
-}
-
-
-/**
- * @internal
- *
- * This function checks all click/tap and double/triple taps
- *
- * @param obj The gesture-layer object.
- * @param pe The recent input event as stored in pe struct.
- * @param event_info Original input event pointer.
- * @param event_type Type of original input event.
- *
- * @ingroup Elm_Gesture_Layer
- */
-static void
-_tap_gestures_test(Evas_Object *obj, Pointer_Event *pe,
-      void *event_info, Evas_Callback_Type event_type)
-{  /* Here we fill Recent_Taps struct and fire-up click/tap timers */
-   Eina_Bool need_timer = EINA_FALSE;
-   Widget_Data *wd = elm_widget_data_get(obj);
-   if (!wd) return;
-
-   if (!pe)   /* this happens when unhandled event arrived */
-     return;  /* see _make_pointer_event function */
-
-   if (IS_TESTED(ELM_GESTURE_N_TAPS))
-     need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
-           wd->gesture[ELM_GESTURE_N_TAPS], 1);
-
-   if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
-     need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
-           wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS], 2);
-
-   if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
-     need_timer |= _tap_gesture_start(wd, pe, event_info, event_type,
-           wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS], 3);
-
-   if ((need_timer) && (!wd->dbl_timeout))
-     {  /* Set a timer to finish these gestures */
-        wd->dbl_timeout = ecore_timer_add(0.4, _multi_tap_timeout,
-              obj);
+         return ;
      }
 }
 
@@ -1400,7 +1418,7 @@ static void
 _compute_taps_center(Long_Tap_Type *st,
       Evas_Coord *x_out, Evas_Coord *y_out, Pointer_Event *pe)
 {
-   if(!eina_list_count(st->touched))
+   if (!eina_list_count(st->touched))
      return;
 
    Eina_List *l;
@@ -1524,7 +1542,7 @@ _n_long_tap_test(Evas_Object *obj, Pointer_Event *pe,
 
       case EVAS_CALLBACK_MULTI_MOVE:
       case EVAS_CALLBACK_MOUSE_MOVE:
-        if(st->info.n &&
+        if (st->info.n &&
            ((gesture->state == ELM_GESTURE_STATE_START) ||
                (gesture->state == ELM_GESTURE_STATE_MOVE)))
           {  /* Report MOVE only if STARTED */
@@ -2663,7 +2681,7 @@ _zoom_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
               Eina_List *l;
               Pointer_Event *p;
 
-              if(eina_list_count(wd->touched) > 2)
+              if (eina_list_count(wd->touched) > 2)
                 {  /* Process zoom only when 2 fingers on surface */
                    ev_flag = _set_state(gesture_zoom,
                          ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
@@ -2888,7 +2906,7 @@ _rotate_test(Evas_Object *obj, Pointer_Event *pe, void *event_info,
               Eina_List *l;
               Pointer_Event *p;
 
-              if(eina_list_count(wd->touched) > 2)
+              if (eina_list_count(wd->touched) > 2)
                 {  /* Process rotate only when 2 fingers on surface */
                    ev_flag = _set_state(gesture,
                          ELM_GESTURE_STATE_ABORT, &st->info, EINA_FALSE);
@@ -3182,10 +3200,10 @@ _event_process(void *data, Evas_Object *obj __UNUSED__,
    int i;
    Gesture_Info *g;
    printf("Gesture | State | is tested\n");
-   for(i = ELM_GESTURE_N_TAPS; i < ELM_GESTURE_LAST; i++)
+   for (i = ELM_GESTURE_N_TAPS; i < ELM_GESTURE_LAST; i++)
      {
         g = wd->gesture[i];
-        if(g)
+        if (g)
           printf("   %d       %d       %d\n", i, g->state, g->test);
      }
 #endif
@@ -3198,8 +3216,17 @@ _event_process(void *data, Evas_Object *obj __UNUSED__,
      _n_long_tap_test(data, pe, event_info, event_type,
            ELM_GESTURE_N_LONG_TAPS);
 
-   /* This takes care of single, double and tripple tap */
-   _tap_gestures_test(data, pe, event_info, event_type);
+   if (IS_TESTED(ELM_GESTURE_N_TAPS))
+      _tap_gesture_test(wd, pe, event_info, event_type,
+            wd->gesture[ELM_GESTURE_N_TAPS], 1);
+
+   if (IS_TESTED(ELM_GESTURE_N_DOUBLE_TAPS))
+      _tap_gesture_test(wd, pe, event_info, event_type,
+            wd->gesture[ELM_GESTURE_N_DOUBLE_TAPS], 2);
+
+   if (IS_TESTED(ELM_GESTURE_N_TRIPLE_TAPS))
+      _tap_gesture_test(wd, pe, event_info, event_type,
+            wd->gesture[ELM_GESTURE_N_TRIPLE_TAPS], 3);
 
    if (IS_TESTED(ELM_GESTURE_MOMENTUM))
      _momentum_test(data, pe, event_info, event_type,
@@ -3222,16 +3249,6 @@ _event_process(void *data, Evas_Object *obj __UNUSED__,
 
    if (_get_event_flag(event_info, event_type) & EVAS_EVENT_FLAG_ON_HOLD)
      _event_history_add(data, event_info, event_type);
-   else if ((event_type == EVAS_CALLBACK_MOUSE_UP) ||
-         (event_type == EVAS_CALLBACK_MULTI_UP))
-     {
-        Eina_List *pending = _device_is_pending(wd->pending, event_info, event_type);
-        if (pending)
-          {
-             consume_event(wd, event_info, event_type, EVAS_EVENT_FLAG_ON_HOLD);
-             _event_history_add(data, event_info, event_type);
-          }
-     }
 
    /* we maintain list of touched devices              */
    /* We also use move to track current device x.y pos */