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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Message #17 received at 76279 <at> debbugs.gnu.org (full text, mbox):

From: Trevor Arjeski <tmarjeski <at> gmail.com>
To: "J.P." <jp <at> neverwas.me>
Cc: Eli Zaretskii <eliz <at> gnu.org>, emacs-erc <at> gnu.org, 76279 <at> debbugs.gnu.org
Subject: Re: bug#76279: 31.0.50; ERC 5.6.1-git: scrolltobottom-mode broken
 on certain global text scaling
Date: Sat, 15 Feb 2025 08:11:26 +0300

"J.P." <jp <at> neverwas.me> writes:

> Trevor Arjeski <tmarjeski <at> gmail.com> writes:
>
>> 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?
>
> Does configuring `erc-scrolltobottom-all' to t help any? (Note that you
> must do so before connecting or else cycle the module's minor mode.)

That DOES work! Uncovering the mysteries of erc...

We can close this now. Thanks, J.P!

Trevor

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