/*
* 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.myfaces.custom.sortheader;
import org.apache.myfaces.component.html.ext.HtmlCommandLink;
import org.apache.myfaces.component.html.ext.HtmlDataTable;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.ActionEvent;
import javax.faces.event.FacesEvent;
/**
* @author Manfred Geiler (latest modification by $Author: mbr $)
* @version $Revision: 474522 $ $Date: 2006-11-13 22:14:23 +0100 (Mo, 13 Nov 2006) $
*/
public class HtmlCommandSortHeader
extends HtmlCommandLink
{
private static final Log log = LogFactory.getLog(HtmlCommandSortHeader.class);
/*
public boolean isImmediate()
{
return true;
}
*/
public void broadcast(FacesEvent event) throws AbortProcessingException
{
if (event instanceof ActionEvent)
{
HtmlDataTable dataTable = findParentDataTable();
if (dataTable == null)
{
log.error("CommandSortHeader has no MyFacesHtmlDataTable parent");
}
else
{
String colName = getColumnName();
String currentSortColumn = dataTable.getSortColumn();
boolean currentAscending = dataTable.isSortAscending();
if (colName.equals(currentSortColumn))
{
String propName = getPropertyName();
if (propName != null)
dataTable.setSortProperty(getPropertyName());
dataTable.setSortColumn(getColumnName());
dataTable.setSortAscending(!currentAscending);
}
else
{
dataTable.setSortProperty(getPropertyName());
dataTable.setSortColumn(getColumnName());
dataTable.setSortAscending(true);
}
}
}
super.broadcast(event);
}
public HtmlDataTable findParentDataTable()
{
UIComponent parent = getParent();
while (parent != null)
{
if (parent instanceof HtmlDataTable)
{
return (HtmlDataTable)parent;
}
parent = parent.getParent();
}
return null;
}
public Object saveState(FacesContext context)
{
Object values[] = new Object[4];
values[0] = super.saveState(context);
values[1] = _columnName;
values[2] = _arrow;
values[3] = _propertyName;
return ((Object) (values));
}
public void restoreState(FacesContext context, Object state)
{
Object values[] = (Object[])state;
super.restoreState(context, values[0]);
_columnName = (String)values[1];
_arrow = (Boolean)values[2];
_propertyName = (String)values[3];
}
//------------------ GENERATED CODE BEGIN (do not modify!) --------------------
public static final String COMPONENT_TYPE = "org.apache.myfaces.HtmlCommandSortHeader";
public static final String COMPONENT_FAMILY = "javax.faces.Command";
public static final String DEFAULT_RENDERER_TYPE = "org.apache.myfaces.SortHeader";
private String _columnName = null;
private String _propertyName = null;
private Boolean _arrow = null;
public HtmlCommandSortHeader()
{
setRendererType(DEFAULT_RENDERER_TYPE);
}
public String getFamily()
{
return COMPONENT_FAMILY;
}
public void setColumnName(String columnName)
{
_columnName = columnName;
}
public String getColumnName()
{
if (_columnName != null) return _columnName;
ValueBinding vb = getValueBinding("columnName");
return vb != null ? vb.getValue(getFacesContext()).toString() : null;
}
public void setPropertyName(String propertyName)
{
_propertyName = propertyName;
}
public String getPropertyName()
{
if (_propertyName != null) return _propertyName;
ValueBinding vb = getValueBinding("propertyName");
return vb != null ? vb.getValue(getFacesContext()).toString() : null;
}
public void setArrow(boolean arrow)
{
_arrow = Boolean.valueOf(arrow);
}
public boolean isArrow()
{
if (_arrow != null) return _arrow.booleanValue();
ValueBinding vb = getValueBinding("arrow");
Boolean v = vb != null ? (Boolean)vb.getValue(getFacesContext()) : null;
return v != null ? v.booleanValue() : false;
}
//------------------ GENERATED CODE END ---------------------------------------
}