[FLEX-33593] mx.controls.MenuBar#mouseOutHandler TypeError

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.9.0
• Fix Version/s: Apache Flex 4.10.0
• Component/s: mx: Menu Bar
• Assignee: Unassigned
• Reporter: Philip Mair
• Created: 19/Jun/13 10:25
• Updated: 20/Jun/13 13:08
• Resolved: 20/Jun/13 13:08

Description

When changing MenuBar dataProvider within click on Menu sometimes causes a TypeError in mouseOutHandler.

I solved this with following workaround:

public override function addChild(child:DisplayObject):DisplayObject
{
if( child is IMenuBarItemRenderer )

{ var item: IMenuBarItemRenderer = IMenuBarItemRenderer( child ); item.addEventListener( MouseEvent.MOUSE_OUT, patchedMouseOutHandler, false, int.MAX_VALUE ); }

return super.addChild( child );
}

private function patchedMouseOutHandler( event: MouseEvent ) : void
{
//stop the event to avoid npe
event.stopImmediatePropagation();
event.stopPropagation();

var item:IMenuBarItemRenderer = IMenuBarItemRenderer(event.target);
var index:int = item.menuBarItemIndex;
var m:Menu = getMenuAt(index);

if (item.enabled && selectedIndex != index)

{ if( menuBarItems.indexOf( item ) >= 0 ) menuBarItems[index].menuBarItemState = "itemUpSkin"; }

// Fire the appropriate rollout event
if (item.data &&
(m.dataDescriptor.getType(item.data) != "separator"))

{ var menuEvent:MenuEvent = new MenuEvent(MenuEvent.ITEM_ROLL_OUT); menuEvent.index = index; menuEvent.menuBar = this; menuEvent.label = itemToLabel(item.data); menuEvent.item = item.data; menuEvent.itemRenderer = item; dispatchEvent(menuEvent); }

}