/*
* 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.markup.html.repeater.data.table;
import org.apache.wicket.extensions.markup.html.repeater.data.sort.ISortStateLocator;
import org.apache.wicket.extensions.markup.html.repeater.data.sort.OrderByBorder;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.list.AbstractItem;
import org.apache.wicket.markup.repeater.RepeatingView;
/**
* Toolbars that displays column headers. If the column is sortable a sortable header will be
* displayed.
*
* @see DefaultDataTable
*
* @author Igor Vaynberg (ivaynberg)
*
*/
public class HeadersToolbar extends AbstractToolbar
{
private static final long serialVersionUID = 1L;
/**
* Constructor
*
* @param table
* data table this toolbar will be attached to
* @param stateLocator
* locator for the ISortState implementation used by sortable headers
*/
public HeadersToolbar(final String id, final DataTable<?> table,
final ISortStateLocator stateLocator)
{
super(id, table);
RepeatingView headers = new RepeatingView("headers");
add(headers);
final IColumn<?>[] columns = table.getColumns();
for (final IColumn<?> column : columns)
{
AbstractItem item = new AbstractItem(headers.newChildId());
headers.add(item);
WebMarkupContainer header = null;
if (column.isSortable())
{
header = newSortableHeader("header", column.getSortProperty(), stateLocator);
}
else
{
header = new WebMarkupContainer("header");
}
if (column instanceof IStyledColumn)
{
header.add(new DataTable.CssAttributeBehavior()
{
private static final long serialVersionUID = 1L;
@Override
protected String getCssClass()
{
return ((IStyledColumn<?>)column).getCssClass();
}
});
}
item.add(header);
item.setRenderBodyOnly(true);
header.add(column.getHeader("label"));
}
}
/**
* Factory method for sortable header components. A sortable header component must have id of
* <code>headerId</code> and conform to markup specified in <code>HeadersToolbar.html</code>
*
* @param headerId
* header component id
* @param property
* property this header represents
* @param locator
* sort state locator
* @return created header component
*/
protected WebMarkupContainer newSortableHeader(String headerId, String property,
ISortStateLocator locator)
{
return new OrderByBorder(headerId, property, locator)
{
private static final long serialVersionUID = 1L;
@Override
protected void onSortChanged()
{
getTable().setCurrentPage(0);
}
};
}
}