Re: [albireo-dev] Focus Management Test Cases

[Gordon Hirsch <gordon.hirsch@xxxxxxx>]

Bruno Haible wrote:
> I'm committing the FocusDebugging class, so use can use that easily for
> the analysis.

I have a different, simpler way of tracing the AWT focus events. It uses 
a property change listener on the keyboard focus manager. It's a little 
more helpful to me because it also tracks events on AWT dialogs.

I'm committing this debug code to AwtEnvironment. If it can provide all 
the AWT information that the FocusDebugging provides, then I suggest 
keeping only this simpler version of the trace code and removing the AWT 
tracing from FocusDebugging.


### Eclipse Workspace Patch 1.0
#P org.eclipse.albireo.core
Index: src/org/eclipse/albireo/core/AwtEnvironment.java
===================================================================
RCS file: /cvsroot/technology/org.eclipse.albireo/org.eclipse.albireo.core/src/org/eclipse/albireo/core/AwtEnvironment.java,v
retrieving revision 1.7
diff -u -r1.7 AwtEnvironment.java
--- src/org/eclipse/albireo/core/AwtEnvironment.java	11 Feb 2008 22:46:31 -0000	1.7
+++ src/org/eclipse/albireo/core/AwtEnvironment.java	12 Feb 2008 23:45:55 -0000
@@ -70,6 +70,9 @@
     private final Display display;
     private final AwtDialogListener dialogListener;
 
+    // Whether to print debugging information regarding focus events.
+    //private static final boolean verboseFocusEvents = false;
+    private static final boolean verboseFocusEvents = false;
     private static PropertyChangeListener focusDebugListener;
 
     /**
@@ -142,18 +145,22 @@
                 public void run() {
                     setLookAndFeel();
 
-//                    if (focusDebugListener == null) {
-//                        focusDebugListener = new PropertyChangeListener() {
-//                            public void propertyChange(PropertyChangeEvent event) {
-//                                System.out.println("@"+System.currentTimeMillis() +
-//                                        " " + event.getPropertyName() + 
-//                                        " new=" + event.getNewValue() +
-//                                        " old=" + event.getOldValue());
-//                            }
-//                        };
-//                        KeyboardFocusManager focusManager = KeyboardFocusManager.getCurrentKeyboardFocusManager();
-//                        focusManager.addPropertyChangeListener(focusDebugListener);
-//                    }
+                    if (verboseFocusEvents) {
+                        if (focusDebugListener == null) {
+                            final KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
+                            focusDebugListener = new PropertyChangeListener() {
+                                public void propertyChange(PropertyChangeEvent event) {
+                                    System.err.println("@"+System.currentTimeMillis() + " " + event.getPropertyName());
+                                    System.err.println("  new=" + event.getNewValue());
+                                    System.err.println("  old=" + event.getOldValue());
+                                    if (event.getPropertyName().equals("focusedWindow")) {
+                                        System.err.println("  permanent="+kfm.getPermanentFocusOwner());
+                                    }
+                                }
+                            };
+                            kfm.addPropertyChangeListener(focusDebugListener);
+                        }
+                    }
                 }
             });
         } catch (InterruptedException e) {