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Java > Open Source Codes > nextapp > echo2 > app > button > DefaultButtonModel


1 /*
2  * This file is part of the Echo Web Application Framework (hereinafter "Echo").
3  * Copyright (C) 2002-2005 NextApp, Inc.
4  *
5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6  *
7  * The contents of this file are subject to the Mozilla Public License Version
8  * 1.1 (the "License"); you may not use this file except in compliance with
9  * the License. You may obtain a copy of the License at
10  * http://www.mozilla.org/MPL/
11  *
12  * Software distributed under the License is distributed on an "AS IS" basis,
13  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14  * for the specific language governing rights and limitations under the
15  * License.
16  *
17  * Alternatively, the contents of this file may be used under the terms of
18  * either the GNU General Public License Version 2 or later (the "GPL"), or
19  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20  * in which case the provisions of the GPL or the LGPL are applicable instead
21  * of those above. If you wish to allow use of your version of this file only
22  * under the terms of either the GPL or the LGPL, and not to allow others to
23  * use your version of this file under the terms of the MPL, indicate your
24  * decision by deleting the provisions above and replace them with the notice
25  * and other provisions required by the GPL or the LGPL. If you do not delete
26  * the provisions above, a recipient may use your version of this file under
27  * the terms of any one of the MPL, the GPL or the LGPL.
28  */
29
30 package nextapp.echo2.app.button;
31
32 import java.util.EventListener JavaDoc;
33
34 import nextapp.echo2.app.event.ActionEvent;
35 import nextapp.echo2.app.event.ActionListener;
36 import nextapp.echo2.app.event.EventListenerList;
37
38 /**
39  * Default <code>ButtonModel</code> implementation.
40  */
41 public class DefaultButtonModel
42 implements ButtonModel {
43     
44     private EventListenerList listenerList = new EventListenerList();
45     private String JavaDoc actionCommand;
46
47     /**
48      * @see nextapp.echo2.app.button.ButtonModel#addActionListener(nextapp.echo2.app.event.ActionListener)
49      */
50     public void addActionListener(ActionListener l) {
51         listenerList.addListener(ActionListener.class, l);
52     }
53     
54     /**
55      * @see nextapp.echo2.app.button.ButtonModel#doAction()
56      */
57     public void doAction() {
58         fireActionPerformed(new ActionEvent(this, getActionCommand()));
59     }
60
61     /**
62      * Notifies registered <code>ActionListener</code>s of an
63      * <code>ActionEvent</code>.
64      *
65      * @param e The <code>ActionEvent</code> to send.
66      */
67     public void fireActionPerformed(ActionEvent e) {
68         EventListener JavaDoc[] listeners = listenerList.getListeners(ActionListener.class);
69         for (int index = 0; index < listeners.length; ++index) {
70             ((ActionListener) listeners[index]).actionPerformed(e);
71         }
72     }
73     
74     /**
75      * @see nextapp.echo2.app.button.ButtonModel#getActionCommand()
76      */
77     public String JavaDoc getActionCommand() {
78         return actionCommand;
79     }
80     
81     /**
82      * Returns the local <code>EventListenerList</code>.
83      *
84      * @return the listener list
85      */
86     protected EventListenerList getEventListenerList() {
87         return listenerList;
88     }
89     
90     /**
91      * @see nextapp.echo2.app.button.ButtonModel#removeActionListener(nextapp.echo2.app.event.ActionListener)
92      */
93     public void removeActionListener(ActionListener l) {
94         listenerList.removeListener(ActionListener.class, l);
95     }
96     
97     /**
98      * @see nextapp.echo2.app.button.ButtonModel#setActionCommand(java.lang.String)
99      */
100     public void setActionCommand(String JavaDoc actionCommand) {
101         this.actionCommand = actionCommand;
102     }
103 }
104
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