Changes to allow for lookups of menu items in menubars.

git-svn-id: svn://10.0.0.236/trunk@24985 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/grendel/widgets/MenuBarCtrl.java

@@ -0,0 +1,77 @@
+/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is the Grendel mail/news client.
+ *
+ * The Initial Developer of the Original Code is Giao Nguyen
+ * <grail@cafebabe.org>.  Portions created by Giao Nguyen are Copyright 
+ * (C) 1999 Giao Nguyen.  All Rights Reserved.
+ */
+
+package grendel.widgets;
+
+import javax.swing.JMenuBar;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+
+import java.util.Hashtable;
+import java.util.Enumeration;
+
+/**
+ * This is a menubar with a keyed lookup rather than a flat iteration model
+ * which JMenuBar by default uses.
+ */
+public class MenuBarCtrl extends JMenuBar {
+
+  protected Hashtable controls = new Hashtable();
+  protected Hashtable menus = new Hashtable();
+
+  /**
+   * Get the control by its name.
+   * @param name the control's name
+   * @return the widget
+   */
+  public JMenuItem getCtrlByName(String name) {
+    JMenuItem item = (JMenuItem)controls.get(name);
+    
+    // if it's not a toplevel item, it must be in one of the submenus
+    if (item != null) {
+      Enumeration e = controls.elements();
+      
+      while (e.hasMoreElements()) {
+        Object o = e.nextElement();
+        
+        if (o instanceof MenuCtrl) {
+          MenuCtrl c = (MenuCtrl)o;
+          item = (JMenuItem)c.getItemByName(name);
+          if (item != null) {
+            break;
+          }
+        }
+      }
+
+    }
+    
+    return item;
+  }
+
+  /**
+   * Add a control to the container.
+   * @param name the control's name
+   * @param component the control
+   */
+  public void addItemByName(String name, JMenuItem component) {
+    controls.put(name, component);
+    add(component);
+  }
+
+}