src/macosx/classes/sun/lwawt/macosx/CEmbeddedFrame.java

*** 36,45 ****
--- 36,47 ----
  import java.awt.event.*;
  
  public class CEmbeddedFrame extends EmbeddedFrame {
  
      private CPlatformResponder responder;
+     private boolean focused = true;
+     private boolean parentWindowActive = true;
  
      public CEmbeddedFrame() {
          show();
      }
  
*** 92,97 ****
--- 94,126 ----
      }
  
      public void handleInputEvent(String text) {
          new RuntimeException("Not implemented");
      }
+ 
+     public void handleFocusEvent(boolean focused) {
+         this.focused = focused;
+         updateOverlayWindowActiveState();
+     }
+ 
+     public void handleWindowFocusEvent(boolean parentWindowActive) {
+         this.parentWindowActive = parentWindowActive;
+         updateOverlayWindowActiveState();
+     }
+ 
+     public boolean isParentWindowActive() {
+         return parentWindowActive;
+     }
+ 
+     /*
+      * May change appearance of contents of window, and generate a
+      * WINDOW_ACTIVATED event.
+      */
+     private void updateOverlayWindowActiveState() {
+         final boolean showAsFocused = parentWindowActive && focused;
+         dispatchEvent(
+             new FocusEvent(this, showAsFocused ?
+                                  FocusEvent.FOCUS_GAINED :
+                                  FocusEvent.FOCUS_LOST));
+      }
+ 
  }