Define and call javascript functions directly inside an AS3 class (FL / FX)

flagers — Mon, 14 Sep 2009 02:57:26 +0200

ActionScript 3.0 doesn't manage all developers needs, so often they have to use other languages, as JavaScript, to accomplish some operations like open an HTML popup or get the userAgent property, useful to know the user Browser.
The AS3 ExternalInterface class allow to invoke Javascript functions directly from Flash.
Usually these functions are defined inside the HTML page but in this sample we'll see how to implement them inside an ActionScript class, avoiding to edit HTML code.

USAGE:

import com.fabiobiondi.utils.URLUtil;
1) URLUtil.checkBrowser()
2) URLUtil.openWindow( 'http://www.google.com', '_blank', 'width=400,height=200,scrollbars=yes')
]]>

package com.fabiobiondi.utils {
 
    import flash.external.ExternalInterface;
 
    public class URLUtil    {
 
	/**
	 * Open a popup window
	 * @param	url			link to open
	 * @param	target		window target
	 * @param	options 	popup options
	 * 
	 */
        public static function openWindow( url : String, 
        				    target : String = "_blank", 
        				    options : String = "") : void {
 
            ExternalInterface.call("window.open", url, target, options);
        }
 
 
	/**
	 * Get the Browser Type
	 * @Return the userAgent property	
	 * 
	 */
	public static function checkBrowser():String {
 
		var userAgent:String = 
			String(ExternalInterface.call("function() {return navigator.userAgent;}"));
 
		return userAgent;
 
 
	}
 
 
    }
 
}

SnippetRepoBrowser

Define and call javascript functions directly inside an AS3 class (FL / FX)