MonitorMenuBar


1   package org.oddjob.monitor.view;
2   
3   import java.awt.event.KeyEvent  ;
4   
5   import javax.swing.JMenu  ;
6   import javax.swing.JMenuBar  ;
7   import javax.swing.JPopupMenu  ;
8   
9   import org.oddjob.monitor.OddjobExplorer;
10  import org.oddjob.monitor.model.DetailModel;
11  
12  /**
13   * Implementation of the monitor menu bar.
14   * 
15   * @author Rob Gordon 
16   */
17  
18  public class MonitorMenuBar extends JMenuBar   {
19      private static final long serialVersionUID = 0;
20      
21      /** The owning OddjobExplorer */
22      private final OddjobExplorer oddjobExplorer;
23      
24      /** The file menu. */
25      private final JMenu   fileMenu;
26      
27      /** The job menu. */
28      private JMenu   jobMenu;
29      
30      /** The popup menu. */
31      private JPopupMenu   popup;
32      
33      /** Job Actions for the job menu. */
34      private ExplorerJobActions jobActions;
35      
36      /** Explorer model for job actions to observe. */
37      private DetailModel detailModel;
38      
39      /**
40       * Constructor.
41       *
42       */
43      public MonitorMenuBar(OddjobExplorer oddjobExplorer) {
44          this.oddjobExplorer = oddjobExplorer;
45          
46          fileMenu = new JMenu  ("File");
47          fileMenu.setMnemonic(KeyEvent.VK_F);
48                  
49          this.add(fileMenu);
50      }
51      
52      public JMenu   getFileMenu() {
53          return fileMenu;
54      }
55          
56      public JMenu   getJobMenu() {
57          return jobMenu;
58      }
59      
60      public JPopupMenu   getPopupMenu() {
61          return popup;
62      }
63  
64      /**
65       * Associate the menu with an explorer session.
66       * 
67       * @param model DetailModel.
68       */
69      public void setSession(DetailModel model) {
70          detailModel = model;
71          jobActions = new ExplorerJobActions(oddjobExplorer);
72          detailModel.addObserver(jobActions);
73          
74          jobMenu = new JMenu  ("Job");
75          jobMenu.setMnemonic(KeyEvent.VK_J); 
76          jobActions.populateMenu(jobMenu);
77          
78          popup = new JPopupMenu  ();
79          jobActions.populateMenu(popup);
80          
81          this.removeAll();
82          this.add(fileMenu);
83          this.add(jobMenu);
84          this.validate();
85          this.repaint();
86      }
87      
88      /**
89       * Remove any association with an Explorer session.
90       *
91       */
92      public void noSession() {
93          detailModel.deleteObserver(jobActions);
94          detailModel = null;
95          jobActions = null;
96          
97          this.remove(jobMenu);
98          jobMenu = null;
99          
100         this.validate();
101         this.repaint();
102     }
103 }
104
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