GNU bug report logs - #66769
30.0.50; pixel-scroll-precision-mode and scroll-margin regression

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From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 66769 <at> debbugs.gnu.org, aaronjensen <at> gmail.com
Subject: bug#66769: 30.0.50; pixel-scroll-precision-mode and scroll-margin regression
Date: Sat, 28 Oct 2023 16:34:17 +0800

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

> And what are the problems in computing this target point in the
> particular case described here?

It should be outside the scroll margin, so additional layout
computations must be performed after scrolling, compounding those
performed beforehand to establish the new window start.

> Even if it's done "only in this case"?  It should slow down only this
> case, no?
>
> And what exactly is the crucial difference between "this case" and the
> other cases, where scrolling works correctly?

The distinction is that scroll-margin is set.

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