Skin state problem with PopupAnchor

Question

I wanted a button which on hover show a popup. and depending on some state, add/remove elements from the popup.
I extended Button to create HoverButton and used DropDownController with PopupAnchor to get the hover to popup behavior. However for some reason removing element from the popup using skin state isn't working. I've included a sample code below.
Basically when you mouse hover over the button, you should see a popup with one or two label depending on state which gets toggled when you click on the button. Initially you see one label in the popup because it's in open state. when you click on the button, state should change to close. so when you hover on the button, popup shows up with two button. So far so good. But if you move your mouse away and then hover again, all of sudden you don't get the second button.
anyone have any idea why this is happening?
MainApplication.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication
     xmlns:fx="http://ns.adobe.com/mxml/2009"
     xmlns:s="library://ns.adobe.com/flex/spark"
     xmlns:mx="library://ns.adobe.com/flex/mx"
     xmlns:local="*">
<local:HoverButton skinClass="HoverButtonSkin" label="wtf" horizontalCenter="0" verticalCenter="0"/>
</s:WindowedApplication>
HoverButton.as
package 
import flash.events.MouseEvent;
import spark.components.Button;
import spark.components.Group;
import spark.components.supportClasses.DropDownController;
import spark.events.DropDownEvent;
[SkinState("open")]
[SkinState("close")]
public class HoverButton extends Button
private var _dropDownController:DropDownController;
private var _open:Boolean = true;
[SkinPart(required='true')]
public var dropDown:Group;
public function HoverButton()
super();
_dropDownController = new DropDownController();
_dropDownController.openButton = this;
_dropDownController.rollOverOpenDelay = 300;
_dropDownController.addEventListener(DropDownEvent.OPEN, handleDropDownOpenClose, false, 0, true);
_dropDownController.addEventListener(DropDownEvent.CLOSE, handleDropDownOpenClose, false, 0, true);
override protected function clickHandler(event:MouseEvent):void
_open = !_open;
override protected function getCurrentSkinState():String
var skinstate:String;
// if the hover is opened, return open
if (_dropDownController.isOpen) {
if (_open) {
skinstate = "open";
} else {
skinstate = "close";
} else {
skinstate = super.getCurrentSkinState();
return skinstate;
override protected function partAdded(partName:String, instance:Object):void
super.partAdded(partName, instance);
if (instance == dropDown) {
_dropDownController.dropDown = dropDown;
override protected function partRemoved(partName:String, instance:Object):void
super.partRemoved(partName, instance);
if (instance == dropDown) {
_dropDownController.dropDown = null;
private function handleDropDownOpenClose(event:DropDownEvent):void
// invalidate skin state whenever the hover gets opened or closed.
invalidateSkinState();
HoverButtonSkin.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:SparkSkin xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark"
             xmlns:fb="http://ns.adobe.com/flashbuilder/2009" width="50" height="50">
    <fx:Metadata>[HostComponent("HoverButton")]</fx:Metadata>
    <!-- states -->
    <s:states>
        <s:State name="up" />
        <s:State name="over" />
        <s:State name="open" stateGroups="hoverState" />
        <s:State name="close" stateGroups="hoverState" />
        <s:State name="down" />
        <s:State name="disabled" />
    </s:states>
<s:Rect top="0" bottom="0" left="0" right="0">
<s:fill>
<s:SolidColor color="0xAAAAAA" />
</s:fill>
</s:Rect>
<s:PopUpAnchor id="popUp" displayPopUp="false" displayPopUp.hoverState="true" includeIn="hoverState"
   left="0" right="0" top="0" bottom="0" itemDestructionPolicy="auto"
   popUpPosition="above" popUpWidthMatchesAnchorWidth="false">
<s:Group id="dropDown">
<s:VGroup>
<s:Label text="{'hover ' + currentState}"/>
<s:Label text="closeLabel" includeIn="close"/>
</s:VGroup>
</s:Group>
</s:PopUpAnchor>
<s:Label id="labelDisplay" verticalCenter="0" horizontalCenter="0"/>
</s:SparkSkin>

Answer 1

hello!
I've experienced the same problem after installing arch on my new hp nx7400. Workaround is to compile psmouse as a module, so i ask you to do that...
Ubuntu users only need to unloading module before shutdown / reboot by adding 'modprobe -r psmouse' to '/etc/init.d/halt' and '/etc/init.d/reboot' because they have psmouse as a module compiled to kernel.
I've noticed that arch devs made that floppy is now a module so I would be gratefull if they could do the same with psmouse.