GNU bug report logs - #61102
28.1; with-selected-window/save-window-excursion calls buffer-list-update-hook only once

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From: martin rudalics <rudalics <at> gmx.at>
To: Al Haji-Ali <abdo.haji.ali <at> gmail.com>, Eli Zaretskii <eliz <at> gnu.org>
Cc: 61102 <at> debbugs.gnu.org
Subject: bug#61102: 28.1; with-selected-window/save-window-excursion calls buffer-list-update-hook only once
Date: Thu, 2 Feb 2023 19:17:10 +0100

> I see that the behaviour is not a bug as per the documentation.
>
> But it does lead to strange behaviours in code or packages that rely
>  on tracking the selected window since there is no way (that I see at
>  least) to detect that the selected window did not change, or changed
>  back at the end of executing this code.

You can save the selected window, call 'select-window', run your code,
call 'select-window' with the previously selected window again.  Or have
a look at 'window-selection-change-functions'.  If you told me what your
code is supposed to do within 'with-selected-window', I might be able to
give you further advice.  As a rule, both 'save-window-excursion' and
'with-selected-window' should be avoided, if possible.

martin

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