EVALUATION

There is a dependency between this, 6537010, 6453597, 6521732.  A fix for this is required before seeing 6537010.
                                     

EVALUATION

After debugging AWT XEmbed code I found the following. When I click S with mouse, it generates XEMBED_REQUEST_FOCUS message and sends it to C. According to the specification, C should request focus and then reply with XEMBED_FOCUS_IN, but this doesn't happen.

Thus, the problem is that C can't request focus from embedding applet. I was able to find out why. When C receives XEMBED_REQUEST_FOCUS it checks if its top-level is an active window and calls requestFocusInWindow. The problem is that the top-level (applet's XEmbeddedFrame) has no focus and is not an active window, so requestFocusInWindow is not called. And even if I remove the check for active window, this would not be enough: requestFocusInWindow must be replaced with requestFocus. This is what the fix for this bug is.
                                     

SUGGESTED FIX

--- XEmbedCanvasPeer.java	2007-02-14 17:59:59.000000000 +0300
***************
*** 335,341 ****
              xembedLog.fine("Requesting focus for client");
              postEvent(new InvocationEvent(target, new Runnable() {
                      public void run() {
!                         target.requestFocusInWindow();
                      }
                  }));
          } else {
--- 335,341 ----
              xembedLog.fine("Requesting focus for client");
              postEvent(new InvocationEvent(target, new Runnable() {
                      public void run() {
!                         target.requestFocus();
                      }
                  }));
          } else {


--- XEmbeddedFramePeer.java	2007-02-14 18:05:42.000000000 +0300
***************
*** 76,89 ****
      public boolean requestWindowFocus() {
          // Should check for active state of host application
          if (embedder != null && embedder.isActive()) {
!             if (embedder.isApplicationActive()) {            
!                 xembedLog.fine("Requesting focus from embedding host");
!                 embedder.requestFocus();
!                 return true;
!             } else {
!                 xembedLog.fine("Host application is not active");
!                 return false;
!             }
          } else {
              xembedLog.fine("Requesting focus from X");
              return super.requestWindowFocus();
--- 76,84 ----
      public boolean requestWindowFocus() {
          // Should check for active state of host application
          if (embedder != null && embedder.isActive()) {
!             xembedLog.fine("Requesting focus from embedding host");
!             embedder.requestFocus();
!             return true;
          } else {
              xembedLog.fine("Requesting focus from X");
              return super.requestWindowFocus();
                                     

SUGGESTED FIX

The full version of the fix can be found at the following location:
http://sa.sfbay.sun.com/projects/awt_data/7/6524986