/*
* 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.renderStrategy;
import org.apache.wicket.Component;
import org.apache.wicket.markup.html.internal.HtmlHeaderContainer;
import org.apache.wicket.markup.html.internal.HtmlHeaderContainer.HeaderStreamState;
/**
* Allows for different header render strategies. The difference per strategy will be order in which
* components are asked to add to the markup header section. Before 1.5 it was
* page->container->child. Since 1.5 it has been changed to child->container->parent (see <a
* href="http://issues.apache.org/jira/browse/WICKET-2693 ">WICKET-2693</a>)
*
* @author Juergen Donnerstag
*/
public interface IHeaderRenderStrategy
{
/**
* Implements the render strategy
*
* @param headerContainer
* The HeaderContainer associated to the response
* @param headerStreamState
* the header section of the page, when null, this section will not be rendered
* @param component
* The root component (e.g. Page) to start the render process
*/
void renderHeader(HtmlHeaderContainer headerContainer, HeaderStreamState headerStreamState,
Component component);
}