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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.trinidad.event;
20  
21  import javax.faces.component.UIComponent;
22  import javax.faces.event.FacesListener;
23  
24  import org.apache.myfaces.trinidad.model.RowKeySet;
25  
26  
27  /**
28   * Event that is generated when nodes are expanded or collapsed in a tree
29   * component.
30   */
31  public class RowDisclosureEvent extends RowKeySetChangeEvent
32  {
33    /**
34     * Creates a new ExpansionEvent
35     * @param collapsed the set of rowKeys that have just been collapsed.
36     * @param expanded the set of rowKeys that have just been expanded.
37     */
38    public RowDisclosureEvent(
39        UIComponent source, 
40        RowKeySet   collapsed, 
41        RowKeySet   expanded)
42    {
43      super(source, collapsed, expanded);
44    }
45  
46    /**
47     * Creates a new ExpansionEvent
48     * @param oldSet the set of rowKeys before any changes.
49     * @param newSet the set of rowKeys after any changes.
50     */
51    public RowDisclosureEvent(
52        RowKeySet   oldSet, 
53        RowKeySet   newSet, 
54        UIComponent source)
55    {
56      super(oldSet, newSet, source);
57    }
58  
59    @Override
60    public void processListener(FacesListener listener)
61    {
62      ((RowDisclosureListener) listener).processDisclosure(this);
63    }
64  
65    @Override
66    public boolean isAppropriateListener(FacesListener listener)
67    {
68      return (listener instanceof RowDisclosureListener);
69    }
70    
71    private static final long serialVersionUID = 1L;
72  }