/*
 * 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.wicket.markup.html.link;

import org.apache.wicket.Component;
import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.markup.ComponentTag;

/**
 * 
 * A behavior to add attribute "disabled" to a Link component when it is disabled.
 *
 */
public class DisabledAttributeLinkBehavior extends Behavior
{

    private static final long serialVersionUID = 1L;

	@Override
	public void onComponentTag(Component component, ComponentTag tag)
	{
		if (!component.isEnabledInHierarchy())
		{
			// if the tag is an anchor proper
			String tagName = tag.getName();
			
			if (tagName.equalsIgnoreCase("a") || tagName.equalsIgnoreCase("link") ||
				tagName.equalsIgnoreCase("area"))
			{
			    tag.put("disabled", "disabled");
			}
			else 
			{
				tag.remove("rel");
			}
		}
	}
}
