/*
 * 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.extensions.ajax.markup.html.repeater.data.table;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.attributes.IAjaxCallListener;
import org.apache.wicket.extensions.ajax.markup.html.repeater.data.sort.AjaxFallbackOrderByBorder;
import org.apache.wicket.extensions.markup.html.repeater.data.sort.ISortStateLocator;
import org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable;
import org.apache.wicket.extensions.markup.html.repeater.data.table.HeadersToolbar;
import org.apache.wicket.markup.html.WebMarkupContainer;


/**
 * Ajaxified {@link HeadersToolbar}
 *
 * @param <S>
 *            the type of the sort property
 * @see HeadersToolbar
 * 
 * @author ivaynberg
 * 
 */
public class AjaxFallbackHeadersToolbar<S> extends HeadersToolbar<S>
{
	private static final long serialVersionUID = 1L;

	/**
	 * Constructor
	 * 
	 * @param table
	 * @param stateLocator
	 */
	public AjaxFallbackHeadersToolbar(final DataTable<?, S> table, final ISortStateLocator<S> stateLocator)
	{
		super(table, stateLocator);
		table.setOutputMarkupId(true);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected WebMarkupContainer newSortableHeader(final String borderId, final S property,
		final ISortStateLocator<S> locator)
	{
		return new AjaxFallbackOrderByBorder<S>(borderId, property, locator, getAjaxCallListener())
		{
			private static final long serialVersionUID = 1L;

			@Override
			protected void onAjaxClick(final AjaxRequestTarget target)
			{
				target.add(getTable());
			}

			@Override
			protected void onSortChanged()
			{
				super.onSortChanged();
				getTable().setCurrentPage(0);
			}
		};
	}

	/**
	 * Returns a decorator that will be used to decorate ajax links used in sortable headers
	 * 
	 * @return decorator or null for none
	 */
	protected IAjaxCallListener getAjaxCallListener()
	{
		return null;
	}
}
