GNU bug report logs - #70856
30.0.50; Hang when scrolling the echo-line with pixel-scroll-precision-mode

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From: Po Lu <luangruo <at> yahoo.com>
To: Steven Allen <steven <at> stebalien.com>
Cc: charmitro <at> posteo.net, 70856 <at> debbugs.gnu.org
Subject: bug#70856: 30.0.50; Hang when scrolling the echo-line with pixel-scroll-precision-mode
Date: Fri, 10 May 2024 11:02:01 +0800

Steven Allen <steven <at> stebalien.com> writes:

> I think the fix is a little more complicated because, while a window may
> be 1 line tall, the underlying buffer may have more than one line.
>
> I believe we need two changes.
>
> 1. In `pixel-scroll-precision-scroll-down` and `-up`, set `max-height`
>    to a minimum of `1` (pixel). It looks like someone already "fixed" the
>    `-up` variant, but I'm not sure that that "fix" is correct as it
>    prevents scrolling in a 1-line window.
> 2. Disable `pixel-scroll-precision-mode` in the echo area and
>    minibuffer? It does not behave well in either case.
>
> But I'm not sure. I'm happy to submit a patch if this sounds like the
> right approach.

I've fixed this on master, please test and ack.

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