/*
* 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.resolver;
import org.apache.wicket.Component;
import org.apache.wicket.MarkupContainer;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.MarkupStream;
import org.apache.wicket.markup.WicketTag;
import org.apache.wicket.markup.html.TransparentWebMarkupContainer;
/**
* Detect <wicket:extend> and <wicket:child> tags, which are silently ignored, because
* they have already been processed.
*
* @author Juergen Donnerstag
*/
public class MarkupInheritanceResolver implements IComponentResolver
{
private static final long serialVersionUID = 1L;
/** */
public static final String CHILD = "child";
/** */
public static final String EXTEND = "extend";
/**
* @see org.apache.wicket.markup.resolver.IComponentResolver#resolve(org.apache.wicket.MarkupContainer,
* org.apache.wicket.markup.MarkupStream, org.apache.wicket.markup.ComponentTag)
*/
@Override
public Component resolve(final MarkupContainer container, final MarkupStream markupStream,
final ComponentTag tag)
{
// It must be <wicket:...>
if (tag instanceof WicketTag)
{
final WicketTag wicketTag = (WicketTag)tag;
// It must be <wicket:extend...>
if (wicketTag.isExtendTag() || wicketTag.isChildTag())
{
String id = wicketTag.getId() + container.getPage().getAutoIndex();
return new TransparentWebMarkupContainer(id);
}
}
// We were not able to handle the componentId
return null;
}
}