////////////////////////////////////////////////////////////////////////////////
//
//  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
{
	import org.apache.royale.core.IChild;


	/**
	 *  Traverses the display list up until it finds an object of the given type.  
	 *  @langversion 3.0
	 *  @playerversion Flash 10.2
	 *  @playerversion AIR 2.6
	 *  @productversion Royale 0.9
	 *  @royalesuppressexport
	 */
    public function getParentOrSelfByType(startChild:IChild, classOrInterface:Class):Object
    {
		while (startChild)
		{
			if (startChild is classOrInterface)
			{
				return startChild;
			}
			if (startChild.parent is classOrInterface)
			{
				return startChild.parent;
			}
			startChild = startChild.parent as IChild;
		}
		return null;
    }
}
