xtermjs/xterm.js

implement alternateScroll settings

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#5,194 建立於 2024年10月18日

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 (7 留言) (0 反應) (0 負責人)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.

貢獻者指南

技術棧
typescriptjavascript
領域
frontend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Understanding of xterm.js input handlingFamiliarity with terminal escape sequencesBasic knowledge of TypeScript
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
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.