////////////////////////////////////////////////////////////////////////////////
//
//  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 org.apache.royale.utils.js
{
	/**
	 * Utility function to dynamically load Javascript in your application.
	 * The callback will be called (with no arguments) when the javascript is loaded.
	 * @param url The url of the js file.
	 * @param callback (optional) the function to be called when the code is loaded.
	 * 
	 * @langversion 3.0
	 * @productversion Royale 0.9.4
	 * @royalesuppressexport
	 * @royaleignorecoercion HTMLScriptElement
	 */
	COMPILE::JS
	public function loadJavascript(url:String, callback:Function = null):void
	{
		var script:HTMLScriptElement = document.createElement('script') as HTMLScriptElement;

		if (callback)
		{
			script.onload = callback;
		}

		script.src = url;
		document.head.appendChild(script);
	}
}