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Middle-Button Scrolling on Pdf Files Causes Smooth/Animated Inertial Scrolling

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评估

难度
3/5
预计耗时
1-2 天
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
c
领域
desktop

调研方向

在 Xreader 4.0.2 中使用连续视图和内置的抓取滚动功能,通过拖动鼠标中键来复现该问题。首先定位 Xreader 的抓取滚动处理,并比较禁用和启用 xinput grab scroll 时的行为。松开鼠标中键后滚动立即停止且没有惯性移动,即表示完成。

由索引模型根据 Issue 内容生成。

描述

Distribution

Fedora 40 t2

Package version

4.0.2

Frequency

Quite often

Bug description

If I use a 3-button mouse and middle-button scrolling, then the page continues scrolling after I've stopped scrolling. It takes time o slow down and stop.

Animated scrolling is disorienting, it makes it harder to find your place after scrolling, and it can cause motion sickness.

I'm uing Cinnamon, with Effects turned off, to try to avoid these types of animation.

Steps to reproduce
  1. Open a pdf file in xreader.
  2. Set it to continuous view; page-by-page view currently breaks scrolling.
  3. Hold the middle mouse button and drag up or down for some time. The longer you drag, the more likely you are to encounter the continued scrolling.
Expected behavior

When you release the middle mouse button, it should stop scrolling.

Additional information

This is for the grab scroll option, not for autoscroll.

Xreader has its own built-in grab scroll. In addition, if you use xorg, then xinput set-prop can set global grab scroll. This occurs with the xinput grab scroll disabled (so the xreader version is doing this) or enabled (so either or both may be doing this). From what I've seen, if you use wayland, there is not yet any global grab scroll.

主要语言
C
星标
285
派生
82
PR 合并指标
30 天内没有已合并 PR

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