gistfile1.as

/*******************************************************************************
 * PushButton Engine
 * Copyright (C) 2009 PushButton Labs, LLC
 * For more information see http://www.pushbuttonengine.com
 *
 * This file is licensed under the terms of the MIT license, which is included
 * in the License.html file at the root directory of this SDK.
 ******************************************************************************/
package com.pblabs.engine.version
{
	import com.pblabs.engine.serialization.TypeUtility;
	
	import flash.display.Sprite;
	import flash.utils.getDefinitionByName;
	
	use namespace mx_internal;

    /**
     * Utility class to determine the version of the Flex SDK we are compiled
     * against, and what runtime we are on. 
     */
	public class VersionUtil
	{
		public static function checkVersion(mainClass:Sprite):VersionDetails
		{
			var detail:VersionDetails = new VersionDetails();
			var testObj:*;
			var testClass:Object;
			
			// Test for Spark AIR Application
			testObj = TypeUtility.instantiate("spark.components::WindowedApplication",true);
			if(testObj)
			{
				detail.type = VersionType.AIR;
				testClass = getDefinitionByName("spark.components::WindowedApplication");
				detail.flexVersion = new FlexSDKVersion(testClass.VERSION);
				return detail;
			}
			
			// Test for Halo AIR Application
			testObj = TypeUtility.instantiate("mx.core::WindowedApplication",true);
			if(testObj)
			{
				detail.type = VersionType.AIR;
				testClass = getDefinitionByName("mx.core::WindowedApplication");
				detail.flexVersion = new FlexSDKVersion(testClass.VERSION);
				return detail;
			}
			
			// Test for Flex Spark Application
			testObj = TypeUtility.instantiate("spark.components::Application",true);
			if(testObj)
			{
				detail.type = VersionType.FLEX;
				testClass = getDefinitionByName("spark.components::Application");
				detail.flexVersion = new FlexSDKVersion(testClass.VERSION);
				return detail;
			}
			
			// Test for Flex Halo Application
			testObj = TypeUtility.instantiate("mx.core::Application",true);
			if(testObj)
			{
				detail.type = VersionType.FLEX;
				testClass = getDefinitionByName("mx.core::Application");
				detail.flexVersion = new FlexSDKVersion(testClass.VERSION);
				return detail;
			}
			
			detail.type = VersionType.FLASH;
			
			return detail;
		}
	}
}