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From: Richard Stallman <rms@gnu.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: 15029@debbugs.gnu.org, dmol@gmx.com
Subject: bug#15029: 24.3; feature-request: add window-focus-lost-hook
Date: Thu, 08 Aug 2013 22:38:15 -0400	[thread overview]
Message-ID: <E1V7cal-0003wP-BO@fencepost.gnu.org> (raw)
In-Reply-To: <jwvob98qgy4.fsf-monnier+emacs@gnu.org> (message from Stefan Monnier on Thu, 08 Aug 2013 12:37:58 -0400)

        [ To any NSA and FBI agents reading my email: please consider
        [ whether defending the US Constitution against all enemies,
        [ foreign or domestic, requires you to follow Snowden's example.

    > It's the same kind of issue.  I don't think Emacs should run any Lisp
    > code when that happens -- it would make things hard to predict.

    Following that same reasoning, we shouldn't have jit-lock.
    And post-command-hook.

jit-lock is tolerable because it is used in a very narrow way, for
updating text properties.  If it were used more broadly, it would
be a disaster.

post-command-hook is also used in narrow ways, and it doesn't
cause anything strange to happen just because you move the mouse.

Timers need to be used in a clean way if they are not to
cause trouble.  In any case, switching windows does not cause
timers to do anything.

If I understand what mouse-autoselect-window does, it only causes
switching windows -- it does not run Lisp code.

    Yes, these things should be used with care, but that doesn't mean we
    shouldn't provide them, because they can be very useful.

What is a very useful application for running code when the mouse
moves out of the Emacs frame?

-- 
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org  www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
  Use Ekiga or an ordinary phone call.






  reply	other threads:[~2013-08-09  2:38 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-05 20:21 bug#15029: 24.3; feature-request: add window-focus-lost-hook Ivan Baidakou
2013-08-06 23:57 ` Glenn Morris
2013-08-07 19:21   ` Richard Stallman
2013-08-08  3:34     ` Glenn Morris
2013-08-08 15:46       ` Richard Stallman
2013-08-08 16:15         ` Glenn Morris
2013-08-09  2:38           ` Richard Stallman
2013-08-09 16:05             ` Glenn Morris
2013-08-09 23:23               ` Richard Stallman
2013-11-17 19:29               ` Glenn Morris
2013-11-19  2:24                 ` Glenn Morris
2013-08-08 16:37         ` Stefan Monnier
2013-08-09  2:38           ` Richard Stallman [this message]
2013-08-09  7:42             ` Eli Zaretskii
2013-08-09 13:54             ` Stefan Monnier
2013-08-09 16:56               ` Richard Stallman
2013-08-09 17:43                 ` Jan Djärv
2013-08-09 23:24                   ` Richard Stallman
2013-08-09 18:40                 ` Stefan Monnier
2013-08-08 16:56         ` Eli Zaretskii
2013-08-09  2:38           ` Richard Stallman
2013-08-09  7:37             ` Eli Zaretskii
2013-08-09 16:54               ` Richard Stallman
2013-08-09 18:20                 ` Eli Zaretskii
2013-08-09 23:24                   ` Richard Stallman

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