xtermjs/xterm.js

implement alternateScroll settings

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#5,194 创建于 2024年10月18日

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 (7 评论) (0 反应) (0 负责人)TypeScript (16,196 star) (1,574 fork)batch import
area/parserhelp wantedtype/enhancement

描述

Details

  • VScode version: 1.93.1
  • OS version: RHEL 9

Steps to reproduce

  1. less file.txt
  2. Scroll mouse one click

Expected outcome

File scrolls the same 3 lines you get in the scrollback buffer, or as commonly seen in almost all other terminals.

Actual outcome

File scrolls a single line.

Additional details

If I do an strace of less, I can see the other terminals send three \33OB on one mouse scroll click, whilst xterm.js only sends the one. Which fully explains things.

I couldn't find any setting in vscode that affected this. Workarounds are welcome.

贡献者指南

技术栈
typescriptjavascript
领域
frontend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
Understanding of xterm.js input handlingFamiliarity with terminal escape sequencesBasic knowledge of TypeScript
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
40
研究方向
Investigate how xterm.js currently processes mouse scroll events and generates escape sequences (e.g., \033OB). Look at the InputHandler and Terminal classes in the source code to understand the current behavior. Identify where the scroll event is translated into escape sequences and determine how to add a configuration option to control the number of lines scrolled per event. Consider reviewing existing settings for scrolling in the codebase, such as 'scrollback' or 'rows' settings, to ensure consistency. The issue may require modifying the parser or the event handler to emit multiple sequences per physical scroll.