GNU bug report logs - #76279
31.0.50; ERC 5.6.1-git: scrolltobottom-mode broken on certain global text scaling

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From: Trevor Arjeski <tmarjeski <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 76279 <at> debbugs.gnu.org, "J.P." <jp <at> neverwas.me>
Subject: bug#76279: 31.0.50; ERC 5.6.1-git: scrolltobottom-mode broken on certain global text scaling
Date: Fri, 14 Feb 2025 12:39:18 +0300

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Trevor Arjeski <tmarjeski <at> gmail.com>
>> Date: Fri, 14 Feb 2025 10:24:12 +0300
>> 
>> Minimal configuration:
>> (use-package erc
>>   :config
>>   (setopt erc-modules '(scrolltobottom))
>>   (erc-scrolltobottom-mode))
>> 
>> 1. Use above config to ensure scrolltobottom module is loaded
>> 2. Start erc with a connection to libera (M-x erc-tls)
>> 3. C-x 1 on the erc buffer window to make it the sole window
>> 4. Once the Libera buffer is loaded, this should be a sufficient number
>> of lines to trigger scroll to bottom.
>> 5. On some resolutions or window size this may be enough to see that the
>> input line (ERC>) is not at the bottom of the window, but in the
>> middle. If not, proceed to step 6.
>> 6. Invoke (global-text-scale-adjust) using C-x C-M-= and continue to
>> press the "=" key until you can notice that the input line jumps to the
>> center of the window.
>
> Aren't you supposed to set erc-input-line-position to -1 if you want
> the prompt to always be at the last line?

Does not seem to make a difference for me and also in the
`erc-scroll-to-bottom' procedure of erc-goodies.el it seems to already
do that by default with `(or erc-input-line-position -1)', right?

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