Gesture Layer: fix crash during deletion.

if target object is deleted before GLayer is deleted, we get a crash
from _event_history_clear.
Setting target to NULL on delete, then testing it before reporting state
takes care of this problem.

Change-Id: I48fe1a1effe3fc4ea6629b587f7f7d9bf1749620

diff --git a/src/lib/elm_gesture_layer.c b/src/lib/elm_gesture_layer.c
index 5e8db21..d6a1741 100644 (file)
--- a/src/lib/elm_gesture_layer.c
+++ b/src/lib/elm_gesture_layer.c
@@ -958,6 +958,8 @@ _target_del_cb(void *data,
                void *event_info __UNUSED__)
 {
    _callbacks_unregister(data);
+   ELM_GESTURE_LAYER_DATA_GET(data, sd);
+   sd->target = NULL;
 }
 
 /**
@@ -1163,8 +1165,9 @@ _event_history_clear(Evas_Object *obj)
                }
              else
                {  /* Report ABORT to all gestures that still not finished */
-                 _state_set(p, ELM_GESTURE_STATE_ABORT, sd->gesture[i]->info,
-                            EINA_FALSE);
+                  if (sd->target)
+                    _state_set(p, ELM_GESTURE_STATE_ABORT,
+                          sd->gesture[i]->info, EINA_FALSE);
                }
           }
      }