/*
* Copyright (C) 2004 TiongHiang Lee
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Email: thlee@onemindsoft.org
*/
package org.onemind.swingweb.client.awt.ui;
import java.awt.AWTEvent;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.List;
import org.onemind.swingweb.client.core.AbstractClient;
import org.onemind.swingweb.client.dom.DomNode;
import org.w3c.dom.Node;
public class ListUIHandler extends ComponentUIHandler implements ItemListener
{
public ListUIHandler(AbstractClient client)
{
super(client);
// TODO Auto-generated constructor stub
}
public Object createComponentInstance(Object parent, DomNode element)
{
java.awt.List list = new java.awt.List();
return list;
}
protected void populateItems(java.awt.List list, DomNode element)
{
list.removeAll();
List nodes = element.getChildNodes();
int count = 0;
for (int i = 0; i < nodes.size(); i++)
{
DomNode childNode = (DomNode) nodes.get(i);
if ("item".equals(childNode.getName()))
{
DomNode childElement = (DomNode) childNode;
String value = childElement.getAttribute("value");
String selected = childElement.getAttribute("selected");
list.add(value, count);
if (Boolean.valueOf(selected).booleanValue())
{
list.select(count);
}
count++;
}
}
}
public Object updateUI(Object com, DomNode element)
{
java.awt.List list = (java.awt.List) com;
String multipleMode = element.getAttribute("multipleMode");
if (Boolean.valueOf(multipleMode).booleanValue())
{
list.setMultipleMode(true);
}
populateItems(list, element);
return com;
}
/**
* {@inheritDoc}
*/
protected void registerListeners(Object com)
{
super.registerListeners(com);
((java.awt.List) com).addItemListener(this);
}
public void itemStateChanged(ItemEvent e)
{
handleEvent(e);
}
public void handleEvent(AWTEvent e)
{
if (e instanceof ItemEvent)
{
java.awt.List l = (java.awt.List) e.getSource();
String id = getClient().getComponentId(l);
if (l.isMultipleMode())
{
int selections[] = l.getSelectedIndexes();
String selectionStr[] = new String[selections.length];
for (int i = 0; i < selections.length; i++)
{
selectionStr[i] = String.valueOf(selections[i]);
}
postEvent(l, selectionStr, true);
} else
{
ItemEvent itemEvent = (ItemEvent) e;
Integer clicked = (Integer) itemEvent.getItem();
postEvent(l, String.valueOf(clicked), true);
}
}
}
}