with super/this etc

gistfile1.as

package components
{
 
/**
 *
 * @author					Dimarik
 * @version					1.0
 * @langversion				3.0
 * @playerversion			Flash 10
 * @playerversion			AIR 1.5
 *
 * @keyword					button, togglebutton
 */
public class ToggleButton extends Sprite
{
 
	//-------------------------------------------------------------------------
	//
	//   Constructor
	//
	//-------------------------------------------------------------------------
 
	/**
	 * Constructor
	 */
	public function ToggleButton() {
		super();
		super.addEventListener(MouseEvent.CLICK, this.handler_click);
		// Скины не должны быть источником событий. Только сам компонент.
		super.mouseChildren = false;
	}
 
	//-------------------------------------------------------------------------
	//
	//   Properties
	//
	//-------------------------------------------------------------------------
 
	//---------------------------------
	//  selected
	//---------------------------------
 
	/**
	 *  @private
	 *  Storage for the selected property
	 */
	private var _selected:		Boolean;
 
	/**
	 *  Contains <code>true</code> if the button is in the down state,
	 *  and <code>false</code> if it is in the up state.
	 *
	 *
	 *  @langversion 3.0
	 *  @playerversion Flash 10
	 *  @playerversion AIR 1.5
	 */
	public function get selected():Boolean {
		return this._selected;
	}
 
	/**
	 *  @private
	 */
	public function set selected(value:Boolean):void {
		if (this._selected === value)
			return;
 
		this._selected = value;
		this.validateState();
	}
 
	//---------------------------------
	//  upSkin
	//---------------------------------
	/**
	 *  @private
	 *  upSkin reference
	 */
	private var _upSkin:	DisplayObject;
 
	public function set upSkin(value:DisplayObject):void {
		if (this._upSkin === value)
			return;
		if (this._upSkin && this._upSkin.parent)
			super.removeChild(this._upSkin);
		this._upSkun = value;
		this.validateState();
	}
 
	public function get upSkin():DisplayObject {
		return this._upSkin;
	}
 
	//---------------------------------
	//  upAndSelectedSkin
	//---------------------------------
	/**
	 *  @private
	 *  upAndSelectedSkin reference
	 */
	private var _upAndSelectedSkin:	DisplayObject;
 
	public function set upAndSelectedSkin(value:DisplayObject):void {
		if (this._upAndSelectedSkin === value)
			return;
		if (this._upAndSelectedSkin && this._upAndSelectedSkin.parent)
			super.removeChild(this._upAndSelectedSkin);
		this._upSkun = value;
		this.validateState();
	}
 
	public function get upAndSelectedSkin():DisplayObject {
		return this._upSkin;
	}
 
	//-------------------------------------------------------------------------
	//
	//   Private methods
	//
	//-------------------------------------------------------------------------
 
	private function validateState():void {
		if (this._selected) {
			if (this._upSkin && this._upSkin.parent) {
				super.removeChild(this._upSkin);
			}
			if (this._upAndSelectedSkin)
				super.addChild(this._upAndSelectedSkin);
		} else {
			if (this._upAndSelectedSkin && this._upAndSelectedSkin.parent) {
				super.removeChild(this._upAndSelectedSkin);
			}
			if (this._upSkin)
				super.addChild(this._upSkin);
		}
	}
 
	//-------------------------------------------------------------------------
	//
	//   Event handlers
	//
	//-------------------------------------------------------------------------
 
	protected function handler_click(event:MouseEvent):void {
		this.selected = !this.selected;
	}
 
 
}
}