Struts example source code file (ExpressInstall.as)

This example Struts source code file (ExpressInstall.as) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

expressinstall, expressinstall

The Struts ExpressInstall.as source code

/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

/**
 * Based on the expressinstall.as class created by Geoff Stearns as part
 * of the FlashObject library.
 *
 * Use this file to invoke the Macromedia Flash Player Express Install functionality
 * This file is intended for use with the FlashObject embed script. You can download FlashObject 
 * and this file at the following URL: http://blog.deconcept.com/flashobject/
 *
 * Usage: 
 *          var ExpressInstall = new ExpressInstall();
 *          
 *          // test to see if install is needed:
 *          if (ExpressInstall.needsUpdate) { // returns true if update is needed
 *              ExpressInstall.init(); // starts the update
 *          }
 *
 *	NOTE: Your Flash movie must be at least 214px by 137px in order to use ExpressInstall.
 *
 */

class ExpressInstall {
	public var needsUpdate:Boolean;
	private var updater:MovieClip;
	private var hold:MovieClip;
	
	public function ExpressInstall(){
		// does the user need to update?
		this.needsUpdate = (_root.MMplayerType == undefined) ? false : true;	
	}

	public function init():Void{
		this.loadUpdater();
	}

	public function loadUpdater():Void {
		System.security.allowDomain("fpdownload.macromedia.com");

		// hope that nothing is at a depth of 10000000, you can change this depth if needed, but you want
		// it to be on top of your content if you have any stuff on the first frame
		this.updater = _root.createEmptyMovieClip("expressInstallHolder", 10000000);

		// register the callback so we know if they cancel or there is an error
		var _self = this;
		this.updater.installStatus = _self.onInstallStatus;
		this.hold = this.updater.createEmptyMovieClip("hold", 1);

		// can't use movieClipLoader because it has to work in 6.0.65
		this.updater.onEnterFrame = function():Void {
			if(typeof this.hold.startUpdate == 'function'){
				_self.initUpdater();
				this.onEnterFrame = null;
			}
		}

		var cacheBuster:Number = Math.random();

		this.hold.loadMovie("http://fpdownload.macromedia.com/pub/flashplayer/"
												+"update/current/swf/autoUpdater.swf?"+ cacheBuster);
	}

	private function initUpdater():Void{
		this.hold.redirectURL = _root.MMredirectURL;
		this.hold.MMplayerType = _root.MMplayerType;
		this.hold.MMdoctitle = _root.MMdoctitle;
		this.hold.startUpdate();
	}

	public function onInstallStatus(msg):Void{
		getURL("javascript:dojo.flash.install._onInstallStatus('"+msg+"')");
	}
}