GNU bug report logs - #76317
Emacs 31.0.50 4b28c41c4f2b on feature/igc branch; :window-sides-vertical doesn't take effect

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From: martin rudalics <rudalics <at> gmx.at>
To: Eli Zaretskii <eliz <at> gnu.org>, Eval Exec <execvy <at> gmail.com>
Cc: 76317 <at> debbugs.gnu.org
Subject: bug#76317: Emacs 31.0.50 4b28c41c4f2b on feature/igc branch; :window-sides-vertical doesn't take effect
Date: Sun, 16 Feb 2025 11:09:36 +0100

[Message part 1 (text/plain, inline)]

>> (defun show-side-window ()
>>    (display-buffer-in-side-window
>>      (get-buffer "~/.emacs.d/init.el")
>>      '((side . left)
>>         (slot . 0)))
>>    (display-buffer-in-side-window
>>      (get-buffer "~/.emacs.d/init.el")
>>      '((side . bottom)
>>         (slot . 0))))
>>
>> (progn
>>    (setq window-sides-vertical nil)
>>    (show-side-window)) ;;; eval this first,  I expect left side window
>> occupy full height, and yes.

No.  When 'window-sides-vertical' is nil, the bottom side window should
occupy full width.  The bug is here.

>> (progn
>>    (setq window-sides-vertical t)
>>    (show-side-window)) ;; then eval this, I expect bottom window occupy
>> full width, but not???
>> ```
>>
>> I expect window-sides-vertical can control bottom side window occupy
>> full frame width, but not. I think this is a bug.

OTOH this is OK.

The bug was introduced with the fix for Bug#73627, the release version
should not have it.  Please try the attached patch.

Thanks, martin

[split-root-window.diff (text/x-patch, attachment)]

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