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From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: E Sabof <esabof@gmail.com>
Cc: 14604@debbugs.gnu.org
Subject: bug#14604: 24.3.50.1; Possibly incorrect behaviour of frame-selected-window
Date: Wed, 30 Oct 2013 13:50:20 -0400	[thread overview]
Message-ID: <jwvfvri3b2p.fsf-monnier+emacsbugs@gnu.org> (raw)
In-Reply-To: <CAEp6DyZKNPM2U37Zgy3LdkhVtypJwv6WpyObuLpmR8Zg+kgYmA@mail.gmail.com> (E. Sabof's message of "Thu, 13 Jun 2013 15:59:11 +0100")

> (defvar user-selected-window nil)
> (defun register-user-location ()
>   (setq user-selected-window (selected-window)))
> (add-hook 'post-command-hook 'register-user-location)

> (setq-default
>   mode-line-format
>   '(:eval (if (eq user-selected-window (selected-window))
>               "selected"
>               "not-selected")))

That will usually work, except for corner-cases where redisplay happens
in the middle of a command, or when the selected window is modified
between commands (e.g. from a process sentinel).

You can make it reliable with the use of the new
`pre-redisplay-function' hook (instead of post-command-hook), which
I just added yesterday.

Of course, making it reliable doesn't mean it's not an omission.
I tend to agree that it would be good to provide access to that info
more directly.


        Stefan





  parent reply	other threads:[~2013-10-30 17:50 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-13 11:45 bug#14604: 24.3.50.1; Possibly incorrect behaviour of frame-selected-window E Sabof
2013-06-13 13:02 ` Eli Zaretskii
2013-06-13 13:47   ` E Sabof
2013-06-13 14:35 ` Stefan Monnier
2013-06-13 14:59   ` E Sabof
2013-06-13 16:04     ` Eli Zaretskii
2013-06-13 16:16       ` E Sabof
2013-10-30 17:50     ` Stefan Monnier [this message]
2013-10-30 19:23       ` E Sabof
2013-10-30 22:40         ` E Sabof
2013-10-30 23:30           ` Stefan Monnier
2013-11-01 21:13             ` E Sabof
2022-02-13  9:21 ` Lars Ingebrigtsen

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