org.apache.wicket.markup.html.MarkupUtil Maven / Gradle / Ivy

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Wicket is a Java web application framework that takes simplicity, separation of concerns and ease of development to a whole new level. Wicket pages can be mocked up, previewed and later revised using standard WYSIWYG HTML design tools. Dynamic content processing and form handling is all handled in Java code using a first-class component model backed by POJO data beans that can easily be persisted using your favorite technology.

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/*
 * 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()
		{
			@Override
			public void component(final MarkupContainer comp, final IVisit visit)
			{
				IMarkupFragment associatedMarkup = comp.getAssociatedMarkup();
				if (associatedMarkup != null)
				{
					MarkupResourceStream rs = associatedMarkup.getMarkupResourceStream();
					if (rs.isHtml5() == false)
					{
						rtn[0] = false;
						visit.stop();
					}
				}
			}
		});

		return rtn[0];
	}
}