[Tizen] Stop observing visuals when a control is destroyed

Change-Id: I6c46f3090cfb8235ed0a081ab328d48c410f039e

diff --git a/dali-toolkit/internal/controls/control/control-data-impl.cpp b/dali-toolkit/internal/controls/control/control-data-impl.cpp
index df41523..f74344d 100755 (executable)
--- a/dali-toolkit/internal/controls/control/control-data-impl.cpp
+++ b/dali-toolkit/internal/controls/control/control-data-impl.cpp
@@ -350,6 +350,16 @@ Control::Impl::Impl( Control& controlImpl )
 
 Control::Impl::~Impl()
 {
+  for( auto&& iter : mVisuals )
+  {
+    StopObservingVisual( iter->visual );
+  }
+
+  for( auto&& iter : mRemoveVisuals )
+  {
+    StopObservingVisual( iter->visual );
+  }
+
   // All gesture detectors will be destroyed so no need to disconnect.
   delete mStartingPinchScale;