      *  Placeholder for mixin by ListAccImpl.
      */
     mx_internal static var createAccessibilityImplementation:Function;
+    
+    // FIXME (rfrishbe): should be style
+    private static const DELAY_TO_SHOW_SELECTION_IN_TOUCH_MODE:int = 150;
 
     //--------------------------------------------------------------------------
     //

     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    // FIXME (rfrishbe): this should really be on start, not starting...
    private function touchScrollStartingHandler(event:TouchScrollEvent):void
    {
        if (event.scrollingObject == this.scroller)
        {

     *  track which is the "focus item" for a drag and drop operation.
     */
    mx_internal var mouseDownIndex:int = -1;
    
    /**
     *  @private
     *  Timer for putting the item renderer in the selected state on a delay
     *  timer because of touch input.
     */
    private var mouseDownSelectTimer:Timer;
    
    /**
     *  @private
