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JSF components and utilities that can be used with any JSF implementation. This library is based on the JSF1.1 version of Tomahawk, but with minor source code and build changes to take advantage of JSF1.2 features. A JSF1.2 implementation is required to use this version of the Tomahawk library.

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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.myfaces.custom.tree.event;

import javax.faces.event.FacesEvent;
import javax.faces.event.FacesListener;
import javax.faces.component.UIComponent;

import org.apache.myfaces.custom.tree.model.TreePath;


/**
 * Event fired by {@link org.apache.myfaces.custom.tree.HtmlTree} on selection changes.
 *
 * @author Oliver Rossmueller
 * @version $Revision: 472638 $ $Date: 2006-11-08 15:54:13 -0500 (Wed, 08 Nov 2006) $
 */
public class TreeSelectionEvent extends FacesEvent
{
    private static final long serialVersionUID = -361206105634892091L;
    private TreePath oldSelectionPath;
    private TreePath newSelectionPath;


    /**
     * Construct an event.
     *
     * @param uiComponent      event source
     * @param oldSelectionPath path of the old selection, null if no node was selected before
     * @param newSelectionPath path of the current selection
     */
    public TreeSelectionEvent(UIComponent uiComponent, TreePath oldSelectionPath, TreePath newSelectionPath)
    {
        super(uiComponent);
        this.oldSelectionPath = oldSelectionPath;
        this.newSelectionPath = newSelectionPath;
    }


    /**
     * Answer the path of the old selection.
     *
     * @return path of previous (old) selection, null if no node was selected before
     */
    public TreePath getOldSelectionPath()
    {
        return oldSelectionPath;
    }


    /**
     * Answer the path of the current (new) selection.
     *
     * @return path of the new selected node
     */
    public TreePath getNewSelectionPath()
    {
        return newSelectionPath;
    }


    public boolean isAppropriateListener(FacesListener faceslistener)
    {
        return faceslistener instanceof TreeSelectionListener;
    }


    public void processListener(FacesListener faceslistener)
    {
        ((TreeSelectionListener) faceslistener).valueChanged(this);
    }
}