GNU bug report logs - #33458
27.0.50; dired loses position when reverted from outside place

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From: Juri Linkov <juri <at> linkov.net>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Stephen Berman <stephen.berman <at> gmx.net>, 33458 <at> debbugs.gnu.org, v88m <at> posteo.net
Subject: bug#33458: 27.0.50; dired loses position when reverted from outside place
Date: Fri, 30 Nov 2018 00:46:50 +0200

> The buffer's point is OK.  So we could introduce a variable, say
> 'set-window-point-from-point', and set this to t when reverting a
> buffer reveals that 'get-buffer-window' is nil.  Redisplaying the
> buffer would then always go to the buffer's point instead of some
> position stored in the window's list of previous buffers.
>
> I'm not sure when to reset this mechanism though.  The first time we
> display the buffer again?  Then switching to that buffer in another
> window later would suffer from the initial problem.  Keep it for every
> other window until it has seen the buffer again?  How would we do
> that?

Maybe until point is moved to another position either by the user or
by any other code that doesn't set 'set-window-point-from-point' again.

> Finally note that this does not fix the dired problem.  There we want
> the cursor go to the line showing the file where point previously was
> in that window.

Maybe for dired store meta-information such as dired-filename
in window parameters.  Then when a dired buffer is restored in a window,
and dired-revert moved point-marker to the beginning of the dired buffer,
move point to the file from the window parameter.

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