GNU bug report logs - #70213
Info-mode side window fit-window-to-buffer issue

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From: Juri Linkov <juri <at> linkov.net>
To: Joseph Turner <joseph <at> breatheoutbreathe.in>
Cc: martin rudalics <rudalics <at> gmx.at>, Stephen Berman <stephen.berman <at> gmx.net>, 70213 <at> debbugs.gnu.org
Subject: bug#70213: Info-mode side window fit-window-to-buffer issue
Date: Sat, 06 Apr 2024 21:39:14 +0300

> In emacs -Q on master after Jan 6 patch, eval this:

Maybe Martin could help to solve this problem (Cc-ed).

> (progn
>   (setq fit-window-to-buffer-horizontally t)
>
>   (setq display-buffer-alist
>         '(((derived-mode . Info-mode)
>            display-buffer-in-side-window
>            (side . right)
>            (window-width . fit-window-to-buffer))
> 	  ((derived-mode . messages-buffer-mode)
>            display-buffer-in-side-window
>            (side . right)
>            (window-width . fit-window-to-buffer)))))
>
> First, to show the expected behavior with *Messages* buffer:
>
> Press C-h e to open the *Messages* buffer.  It appears in a side
> window on the right fit to the width of the buffer content.
>
> Second, to show the unexpected behavior with *info* buffer:
>
> Ensure no side window state is lying around:
>
> (dolist (buf (list "*Messages*" "*info*"))
>   (when (get-buffer buf)
>     (kill-buffer buf)))
>
> Press C-h i to open the *info* buffer.  It appears in a side
> window on the right with `window-min-width' (default 10), but the
> content of the *info* buffer is much wider than its window.
>
> Press C-h i again for the *info* buffer to resize itself.
>
> I would expect the *info* window to fit to the buffer contents
> when it first appears.  The patch I sent earlier fixes this.

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