+ // Custom transitions
+ LayoutTransitionDataPtr mOnChildAddTransitionData;
+ LayoutTransitionDataPtr mOnChildRemoveTransitionData;
+ LayoutTransitionDataPtr mOnChildFocusTransitionData;
+ LayoutTransitionDataPtr mOnOwnerSetTransitionData;
+ LayoutTransitionDataPtr mOnLayoutChangeTransitionData;
+ // Default transition
+ LayoutTransitionDataPtr mDefaultTransitionData;
+
+ // To pass layout data during perform layout
+ static LayoutData* sLayoutData;