RFR: 8254841: [macos] Enter and Exit events shouldn't be sent whilst resizing [v5]

[Alisen Chung]

On Thu, 23 Sep 2021 21:50:57 GMT, Phil Race <prr at openjdk.org> wrote:

> > > > I checked for when the user maximizes the window and tiles to the left or right of the screen and both seem to work.
> > > 
> > > 
> > > But what is the flag value? Is it true or false? If it's true and everything works maybe we do not need this line at all?
> > 
> > 
> > Oh the flag is always true. And removing the line completely fixes the bug and doesn't have any problems with fullscreen or tiling.
> 
> Surely that was there for a reason ? Looks like it might be important for the synthesized full screen mode ?
> It was added in that location by this fix : https://mail.openjdk.java.net/pipermail/awt-dev/2013-November/006372.html
> and that just moved it a few lines so it was already in use before then.

Sergey did mention it was added as a fix for JDK-8028485 earlier too. Reverting the changes made by JDK-8028485 doesn't seem to reintroduce the fullscreen not firing mouseEntered bug, so I'm not exactly sure how that fix worked. Behavior seems to be the same regardless of the position of the [AWTWindow synthesizeMouseEnteredExitedEventsForAllWindows] line.

> 
> Does the test from there still pass ? Any others fail ?

All manual and automatic tests are passing on macOS.

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PR: https://git.openjdk.java.net/jdk/pull/5497