frameworks/projects/mobiletheme/src/spark/skins/android4/ButtonBarMiddleButtonSkin.as

////////////////////////////////////////////////////////////////////////////////
//
//  Licensed to the Apache Software Foundation (ASF) under one or more
//  contributor license agreements.  See the NOTICE file distributed with
//  this work for additional information regarding copyright ownership.
//  The ASF licenses this file to You under the Apache License, Version 2.0
//  (the "License"); you may not use this file except in compliance with
//  the License.  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////

package spark.skins.android4
{
	
	import spark.skins.android4.assets.ButtonBarMiddleButton_selectedDown;
	import spark.skins.android4.assets.ButtonBarMiddleButton_selectedUp;
	import spark.skins.android4.assets.ButtonBarMiddleButton_up;
	import spark.skins.mobile.supportClasses.ButtonBarButtonSkinBase;
	
	/**
	 *  Android 4.x specific Button skin for middle Buttons in a ButtonBar.
	 * 
	 *  @see spark.components.ButtonBar#middleButton
	 * 
	 *  @langversion 3.0
	 *  @playerversion Flash 10
	 *  @playerversion AIR 2.5 
	 *  @productversion Flex 4.5
	 */
	public class ButtonBarMiddleButtonSkin extends ButtonBarButtonSkinBase
	{
		
		/**
		 *  Class to use for the border in the selected and down state.
		 * 
		 *  @langversion 3.0
		 *  @playerversion Flash 10
		 *  @playerversion AIR 2.5 
		 *  @productversion Flex 4.5
		 */  
		protected var selectedDownBorderSkin:Class;
		
		/**
		 *  Constructor.
		 * 
		 *  @langversion 3.0
		 *  @playerversion Flash 10
		 *  @playerversion AIR 2.5 
		 *  @productversion Flex 4.5
		 */
		public function ButtonBarMiddleButtonSkin()
		{
			super();
			
			upBorderSkin = spark.skins.android4.assets.ButtonBarMiddleButton_up;
			downBorderSkin = spark.skins.android4.assets.ButtonBarMiddleButton_down;
			selectedBorderSkin = spark.skins.android4.assets.ButtonBarMiddleButton_selectedUp;
			selectedDownBorderSkin = spark.skins.android4.assets.ButtonBarMiddleButton_selectedDown;
		}
		
		//--------------------------------------------------------------------------
		//
		//  Overridden methods
		//
		//--------------------------------------------------------------------------
		
		override protected function drawBackground(unscaledWidth:Number, unscaledHeight:Number):void
		{
			//Dont draw background
		}
		
		override protected function getBorderClassForCurrentState():Class
		{
			var isSelected:Boolean = currentState.indexOf("Selected") >= 0;
			var isDown:Boolean = currentState.indexOf("down") >= 0;
			
			if (isSelected && !isDown )
				return selectedBorderSkin;
			else if (isSelected && isDown)
				return selectedDownBorderSkin;
			else if (!isSelected && !isDown)
				return upBorderSkin;
			else 
				return downBorderSkin;
		}
	}
}