Commit | Line | Data |
---|---|---|
2a03ecc0 NR |
1 | package be.nikiroo.fanfix_swing.gui.utils; |
2 | ||
3 | import java.awt.event.ActionEvent; | |
4 | import java.awt.event.ActionListener; | |
5 | ||
6 | import javax.swing.JPanel; | |
7 | ||
8 | import be.nikiroo.fanfix_swing.gui.SearchBar; | |
9 | ||
10 | /** | |
11 | * A {@link JPanel} with the default {@link ActionListener} add/remove/fire | |
12 | * methods. | |
13 | * | |
14 | * @author niki | |
15 | */ | |
16 | public class ListenerPanel extends JPanel { | |
17 | private static final long serialVersionUID = 1L; | |
18 | ||
19 | /** | |
20 | * Adds the specified action listener to receive action events from this | |
21 | * {@link SearchBar}. | |
22 | * | |
23 | * @param listener the action listener to be added | |
24 | */ | |
25 | public synchronized void addActionListener(ActionListener listener) { | |
26 | listenerList.add(ActionListener.class, listener); | |
27 | } | |
28 | ||
29 | /** | |
30 | * Removes the specified action listener so that it no longer receives action | |
31 | * events from this {@link SearchBar}. | |
32 | * | |
33 | * @param listener the action listener to be removed | |
34 | */ | |
35 | public synchronized void removeActionListener(ActionListener listener) { | |
36 | listenerList.remove(ActionListener.class, listener); | |
37 | } | |
38 | ||
39 | /** | |
40 | * Notify the listeners of an action. | |
41 | * | |
42 | * @param listenerCommand A string that may specify a command (possibly one of | |
43 | * several) associated with the event | |
44 | */ | |
45 | protected void fireActionPerformed(String listenerCommand) { | |
46 | ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, listenerCommand); | |
47 | Object[] listeners = listenerList.getListenerList(); | |
48 | for (int i = listeners.length - 2; i >= 0; i -= 2) { | |
49 | if (listeners[i] == ActionListener.class) { | |
50 | ((ActionListener) listeners[i + 1]).actionPerformed(e); | |
51 | } | |
52 | } | |
53 | } | |
54 | } |