From: Boruch Baum <boruch_baum@gmx.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 43412@debbugs.gnu.org
Subject: bug#43412: [FEATURE] autorevert-only-if-visible [PATCH]
Date: Thu, 17 Sep 2020 16:10:49 -0400 [thread overview]
Message-ID: <20200917201049.jihclkumemv4mbhz@E15-2016.optimum.net> (raw)
In-Reply-To: <83a6xo7dgv.fsf@gnu.org>
On 2020-09-17 16:13, Eli Zaretskii wrote:
> > Date: Wed, 16 Sep 2020 16:11:04 -0400
> > From: Boruch Baum <boruch_baum@gmx.com>
> > Cc: 43412@debbugs.gnu.org
> >
> > It looks to me like that's not the case: my testing seems to show that
> > it does catch cases of changing a buffer displayed in a window but does
> > not catch changes of frames due to functions like `other-frame' or
> > `select-frame'.
> >
> > So, the good news is that I've written the code that makes the
> > improvement for the caught cases, and I can submit that.
> >
> > As for the cases of changing frames, a less-desirable option would be to
> > preempt bug-reports by documenting the limitation. Auto-revert already
> > has other curious limitations (eg. for dired buffers it doesn't operate
> > _at__all_ on many types of file changes), and this limitation only
> > introduces a delay, so by comparison its a pretty mild limitation.
>
> If we have no better way, we could document this as a limitation,
> yes. But let's make one more attempt to solve this.
>
> > A better option would be able to catch frame-change events. I haven't
> > found a straightforward way to trap that. Does such a method exist?
>
> Can you describe the problematic case in more detail? With that in
> hand, perhaps Martin (CC'ed) could suggest a method.
I'm needing now to focus on Rosh HaShanna preparations, and can let
emacs distract me for the next few days, but from memory, on tty emacs:
1) touch ~/foo
2) find it in emacs
3) bury the frame so it's not human-visible
3.1) OT: I find it useful to globally bind C-x 5 b to function
select-frame-by-name, because I do this routinely as part of my
workflow. Another option might be C-x 5 2.
4) M-! echo "bar" >> ~/foo
5) switch to the buried frame
6) Depending upon your timing, you'll need to wait up to
auto-revert-interval seconds for the buffer to be updated.
> > An inelegant solution that would cover most of the remaining events
> > would be to advise :after ~4 frame functions, and to add an element to
> > variable `move-frame-functions'.
>
> Yes, I'd prefer to avoid such solutions.
It maybe could all be solved if there were a hook for frame change of
state (eg. getting/losing focus, being raised/buried). It's surprising
to me that such events were never thought significant enough in emacs to
merit a hook.
--
hkp://keys.gnupg.net
CA45 09B5 5351 7C11 A9D1 7286 0036 9E45 1595 8BC0
next prev parent reply other threads:[~2020-09-17 20:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 4:07 bug#43412: [FEATURE] autorevert-only-if-visible [PATCH] Boruch Baum
2020-09-15 14:30 ` Eli Zaretskii
2020-09-15 15:39 ` Boruch Baum
2020-09-15 15:49 ` Eli Zaretskii
2020-09-15 16:12 ` Boruch Baum
2020-09-15 17:24 ` Eli Zaretskii
2020-09-16 20:11 ` Boruch Baum
2020-09-17 13:13 ` Eli Zaretskii
2020-09-17 20:10 ` Boruch Baum [this message]
2020-09-18 6:35 ` Eli Zaretskii
2020-09-18 7:49 ` martin rudalics
2020-09-29 13:05 ` Boruch Baum
2020-09-29 14:34 ` martin rudalics
2020-09-29 14:45 ` Eli Zaretskii
2020-09-15 18:47 ` Michael Albinus
2020-09-15 19:31 ` Boruch Baum
2020-09-17 11:07 ` Michael Albinus
2020-09-17 20:03 ` Boruch Baum
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