Index: ant/src/org/apache/tools/ant/module/xml/AntProjectSupport.java
===================================================================
RCS file: /cvs/ant/src/org/apache/tools/ant/module/xml/AntProjectSupport.java,v
retrieving revision 1.7
diff -u -t -r1.7 AntProjectSupport.java
--- ant/src/org/apache/tools/ant/module/xml/AntProjectSupport.java	2001/04/06 17:00:01	1.7
+++ ant/src/org/apache/tools/ant/module/xml/AntProjectSupport.java	2001/04/20 16:33:47
@@ -35,13 +35,15 @@
 import org.openide.nodes.*;
 import org.openide.loaders.*;
 import org.openide.filesystems.*;
+import org.openide.text.CloneableEditorSupport;
 import org.openide.text.NbDocument;
 import org.openide.util.RequestProcessor;
+import org.openide.util.WeakListener;
 
 import org.apache.tools.ant.module.AntModule;
 import org.apache.tools.ant.module.api.AntProjectCookie;
 
-public class AntProjectSupport implements AntProjectCookie, DocumentListener, FileChangeListener, org.w3c.dom.events.EventListener, Runnable {
+public class AntProjectSupport implements AntProjectCookie, DocumentListener, FileChangeListener, org.w3c.dom.events.EventListener, Runnable, ChangeListener {
   
     private final File file;
     private FileObject fo;
@@ -96,6 +98,9 @@
                 if (editor == null) {
                     try {
                         editor = (EditorCookie) DataObject.find (fo).getCookie (EditorCookie.class);
+                        if (editor != null && (editor instanceof CloneableEditorSupport)) {
+                            ((CloneableEditorSupport) editor).addChangeListener (WeakListener.change (this, editor));
+                        }
                     } catch (DataObjectNotFoundException donfe) {
                         AntModule.err.notify (ErrorManager.INFORMATIONAL, donfe);
                     }
@@ -332,6 +337,11 @@
         if (ev.getDocument ().getProperty (expectingDocUpdates) == null) {
             invalidate ();
         }
+    }
+    
+    // Called when editor support changes state: #11616
+    public void stateChanged (ChangeEvent changeEvent) {
+        invalidate ();
     }
     
     public void fileDeleted (org.openide.filesystems.FileEvent p1) {