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1   /*
2    * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.
8    *
9    * This code is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12   * version 2 for more details (a copy is included in the LICENSE file that
13   * accompanied this code).
14   *
15   * You should have received a copy of the GNU General Public License version
16   * 2 along with this work; if not, write to the Free Software Foundation,
17   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18   *
19   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20   * or visit www.oracle.com if you need additional information or have any
21   * questions.
22   *
23   */
24  
25  
26  package com.sun.java.swing.action;
27  
28  import java.awt.event.ActionEvent;
29  import java.awt.event.ActionListener;
30  import javax.swing.AbstractAction;
31  import javax.swing.Icon;
32  
33  public abstract class DelegateAction extends AbstractAction
34  {
35  
36      public DelegateAction(String name, Icon icon)
37      {
38          super(name, icon);
39      }
40  
41      public void addActionListener(ActionListener listener)
42      {
43          this.listener = listener;
44      }
45  
46      public void removeActionListener(ActionListener listener)
47      {
48          this.listener = null;
49      }
50  
51      public ActionListener[] getActionListeners()
52      {
53          return (new ActionListener[] {
54              listener
55          });
56      }
57  
58      public void actionPerformed(ActionEvent evt)
59      {
60          if(listener != null)
61              listener.actionPerformed(evt);
62      }
63  
64      private ActionListener listener;
65  }