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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  
20  package org.apache.myfaces.tobago.event;
21  
22  import javax.faces.component.UIComponent;
23  import javax.faces.event.FacesEvent;
24  import javax.faces.event.FacesListener;
25  
26  public class TreeExpansionEvent extends FacesEvent {
27  
28    private static final long serialVersionUID = 422186716954088729L;
29  
30    private boolean oldExpanded;
31    private boolean newExpanded;
32  
33    public TreeExpansionEvent(final UIComponent node, final boolean oldExpanded, final boolean newExpanded) {
34      super(node);
35      this.oldExpanded = oldExpanded;
36      this.newExpanded = newExpanded;
37    }
38  
39    @Override
40    public boolean isAppropriateListener(final FacesListener facesListener) {
41      return facesListener instanceof TreeExpansionListener;
42    }
43  
44    @Override
45    public void processListener(final FacesListener facesListener) {
46      if (facesListener instanceof TreeExpansionListener) {
47        if (oldExpanded && !newExpanded) {
48     //todo     ((TreeExpansionListener) facesListener).treeCollapsed(this);
49          ((TreeExpansionListener) facesListener).treeExpanded(this);
50        } else if (!oldExpanded && newExpanded) {
51          ((TreeExpansionListener) facesListener).treeExpanded(this);
52        } else {
53          // nothing to do
54        }
55      }
56    }
57  
58    public boolean isOldExpanded() {
59      return oldExpanded;
60    }
61  
62    public boolean isNewExpanded() {
63      return newExpanded;
64    }
65  
66    @Override
67    public String toString() {
68      return new StringBuilder()
69          .append(super.toString())
70          .append("expanded=")
71          .append(newExpanded)
72          .toString();
73    }
74  }