Review request for 7124554: [macosx] JWindow does ignore setAlwaysOnTop property

[Anthony Petrov]

Hello,

Please review a fix for http://bugs.sun.com/view_bug.do?bug_id=7124554 at:

http://cr.openjdk.java.net/~anthony/x-6-alwaysOnTop.0/

Lubomir Nerad (CC'ed) should be credited for the fix itself. I'm just 
going to integrate it into the repository.

A JWindow object is always a child window with either an explicit 
parent, or a shared invisible owner frame. Therefore, we always call 
NSWindow -addChildWindow: when showing a JWindow object. The root cause 
of the issue is that the -addChildWindow: resets the level of the child 
window to match that of the parent window. With this fix we restore the 
level back to its original value after the -addChildWindow: call, and as 
such preserve the always-on-top state of the child window.

I've verified the fix with a test app attached to the original issue at 
http://java.net/jira/browse/MACOSX_PORT-158 , and it works fine.

--
best regards,
Anthony