public Window()
: base()
{
_uiSources = new List<IUISource>();
this.focusable = true;
bringToFontOnClick = UIConfig.bringWindowToFrontOnClick;
displayObject.onAddedToStage.Add(__onShown);
displayObject.onRemovedFromStage.Add(__onHide);
displayObject.onTouchBegin.AddCapture(__touchBegin);
this.gameObjectName = "Window";
SetHome(GRoot.inst);
}