/*
* 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;
import org.apache.wicket.MarkupContainer;
import org.apache.wicket.Page;
import org.apache.wicket.WicketRuntimeException;
import org.apache.wicket.markup.IMarkupFragment;
import org.apache.wicket.markup.MarkupResourceStream;
import org.apache.wicket.util.lang.Args;
import org.apache.wicket.util.visit.IVisit;
import org.apache.wicket.util.visit.IVisitor;
/**
* HTML5 helper
*
* @author Juergen Donnerstag
*/
public class MarkupUtil
{
/**
*
* @param container
* @return True if the Page and all it's Panels, Borders etc. have HTML5 compliant markup. HTML5
* markup is identified by <DOCTYPE html>
*/
public final static boolean isMarkupHtml5Compliant(final MarkupContainer container)
{
Args.notNull(container, "container");
Page page = container.getPage();
if (page == null)
{
throw new WicketRuntimeException("Component not attached to Page. Component: " +
container.toString());
}
final boolean rtn[] = new boolean[] { true };
page.visitChildren(MarkupContainer.class, new IVisitor<MarkupContainer, Void>()
{
@Override
public void component(final MarkupContainer comp, final IVisit<Void> visit)
{
IMarkupFragment associatedMarkup = comp.getAssociatedMarkup();
if (associatedMarkup != null)
{
MarkupResourceStream rs = associatedMarkup.getMarkupResourceStream();
if (rs.isHtml5() == false)
{
rtn[0] = false;
visit.stop();
}
}
}
});
return rtn[0];
}
}