Subject: bug#41338: Toolbar-bug in Emacs 27.0.91/Pretest

From: Juri Linkov <[email-masked]>
Date: Sun, 14 Jun 2020 01:56:05 +0300

> isearch uses overriding-terminal-local-map, so the proper test case is:
>
> (setq overriding-terminal-local-map
>       (let ((map (make-keymap)))
> 	(define-key map [delete-frame]
> 	  (lambda (&rest ignore)
> 	    (interactive)
> 	    (message "DELETE-FRAME")))
> 	(define-key map "!"
> 	  (lambda (&rest ignore)
> 	    (interactive)
> 	    (message "!")))
> 	map))
>
> and indeed typing '!' you get the message,
> but no message when clicking the `X' icon.

The docstring of 'overriding-terminal-local-map' says:

  Per-terminal keymap that takes precedence over all other keymaps.

so maybe this is right for a *per-terminal* keymap not to react
to window events such as clicking the `X' icon?