bug#47731: 28.0.50; Switching frame via keyboard does not fire focus change event

[Lars Ingebrigtsen]

Sean Farley <sean@farley.io> writes:

> Here is some testing code:
> (defun test--focus-out ()
>   (message "FOCUS TEST"))
>
> (add-function :after after-focus-change-function #'test--focus-out)
> (make-frame)
>
> On macOS, this code runs fine if you click on the other frame. But if
> using the keyboard shortcut Command-` the event doesn't fire. It seems
> to be some interaction in the keydown event function where emacs_event
> is cleared before the call to windowDidBecomeKey.

I haven't tested the recipe, but perhaps Alan has some comments here
(added to the CCs).

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no