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bug#40774: Error messages shouldn't be hidden when the user is idle
From: |
Eli Zaretskii |
Subject: |
bug#40774: Error messages shouldn't be hidden when the user is idle |
Date: |
Sun, 12 Dec 2021 21:49:26 +0200 |
> From: Juri Linkov <juri@linkov.net>
> Cc: larsi@gnus.org, 40774@debbugs.gnu.org, ndame@protonmail.com
> Date: Sun, 12 Dec 2021 21:19:41 +0200
>
> >> +** The return value of 'clear-message-function' is not ignored anymore.
> >> +If the function returns t, then the message is not cleared,
> >> +with the assumption that the function cleared it itself.
> >
> > I could perhaps agree to this if the special new behavior was the
> > result of a very special return value, and only that value. Having
> > the new behavior kick in for t is out of the question for the release
> > branch, as it is highly likely to trip unsuspecting Lisp programs.
>
> What a special value would you prefer? Maybe, a symbol 'no'?
More like 'no-clear or even 'dont-clear-message, I think.
> > Btw, what does the change of the order between the call of
> > clear-message-function and setting echo_area_buffer[0] to nil mean,
> > compatibility-wise? won't it also produce different results, even if
> > the return value is nil?
>
> When the return value is nil, it will still clear the echo area.
That wasn't what I asked. I asked whether the change in the order
could matter. Specifically, we now set echo_area_buffer[0] to nil
after we run clear-message-function, not before. Can that affect
some customization of clear-message-function?
> > More generally, I fear that we are trying very hard to tweak a
> > particular infrastructure for a job for which it was hardly meant.
>
> This is the most simple and thus reliable solution.
>
> > IOW, shouldn't we provide some completely different optional feature
> > for this use case? Like a special buffer that pops up or a special
> > frame? Echo-area is not suited for showing large chunks of text, and
> > my gut feeling is that we will bump into problems on this path. E.g.,
> > what happens when there are enough accumulated messages that they can
> > no longer be shown with the maximum allowed height of the mini-window?
>
> This is exactly what functions bound to clear-message-function intended to do.
??? This function is about _clearing_ the echo-area, whereas I was
talking about the _display_ in the echo-area. I'm saying that I'm not
sure echo-area display is suited for the jobs that this bug wants it
to do. As an example, I asked what would happen when the echo-area
can no longer be resized to accommodate all the messages that were not
cleared.
- bug#40774: Error messages shouldn't be hidden when the user is idle, (continued)
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/05
- bug#40774: Error messages shouldn't be hidden when the user is idle, Lars Ingebrigtsen, 2021/12/05
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/05
- bug#40774: Error messages shouldn't be hidden when the user is idle, Lars Ingebrigtsen, 2021/12/06
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/06
- bug#40774: Error messages shouldn't be hidden when the user is idle, Lars Ingebrigtsen, 2021/12/07
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/08
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/08
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/08
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/12
- bug#40774: Error messages shouldn't be hidden when the user is idle,
Eli Zaretskii <=
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/12
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/13
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/13
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/13
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/14
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/14
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/14
- bug#40774: Error messages shouldn't be hidden when the user is idle, Eli Zaretskii, 2021/12/15
- bug#40774: Error messages shouldn't be hidden when the user is idle, Juri Linkov, 2021/12/08