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bug#29325: 26.0.90: Info scrolling stuck
From: |
Eli Zaretskii |
Subject: |
bug#29325: 26.0.90: Info scrolling stuck |
Date: |
Mon, 20 Nov 2017 22:25:33 +0200 |
> Date: Mon, 20 Nov 2017 20:52:39 +0100
> From: charles@aurox.ch (Charles A. Roelli)
> CC: 29325@debbugs.gnu.org
>
> I don't have access to a GNU/Linux system at the moment, but if I
> recall correctly, it would be 5 lines at a time, when scrolling
> slowly.
Then I'd expect the same behavior to happen if you do "M-5 M-v"
instead of turning the wheel. Does it?
If M-v doesn't reproduce the problem, then what about removing the
tricky code, and leaving just
(funcall mwheel-scroll-down-function amt)
without all the rest? I cannot understand why we need the rest, maybe
I'm missing something. mwheel-scroll-down-function is by default
scroll-down, exactly the same function called by M-v, so the results
should be the same, assuming that 'amt' is 5 when turning the wheel.
> The behavior is different depending on how fast the mouse wheel is
> turned. If it is turned slowly several times in a row, it is possible
> to make window-start reach as far as the second or third line of the
> buffer. If you turn it once more, then window-start jerks down a few
> lines instead of reaching the start of the buffer. This can be
> repeated ad infinitum.
>
> In contrast, when turning the mouse wheel quickly (a few notches in
> one second), it is not possible to get window-start anywhere near the
> start of the buffer, except by using non-mouse commands or by setting
> point closer to the top of the window first (with the mouse).
Just to make sure we are not barking up the wrong tree: this is in
"emacs -Q" with no customizations of any scroll-related variables,
like scroll-margin, scroll-conservatively, etc., right?
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/16
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/16
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/16
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/17
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/19
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/19
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/20
- bug#29325: 26.0.90: Info scrolling stuck,
Eli Zaretskii <=
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/21
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/21
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/21
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/22
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/22
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/23
- bug#29325: 26.0.90: Info scrolling stuck, Eli Zaretskii, 2017/11/23
- bug#29325: 26.0.90: Info scrolling stuck, Charles A. Roelli, 2017/11/22
bug#29325: 26.0.90: Info scrolling stuck, Drew Adams, 2017/11/16