xtermjs/xterm.js

implement alternateScroll settings

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#5,194 opened on 2024年10月18日

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 (7 comments) (0 reactions) (0 assignees)TypeScript (16,196 stars) (1,574 forks)batch import
area/parserhelp wantedtype/enhancement

説明

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.

コントリビューターガイド

技術スタック
typescriptjavascript
領域
frontend
Issue 種別
feature
難度新しい貢献者にとっての実装難度です。1 は非常に小さな変更、5 は専門的な作業です。
3
推定時間経験ある貢献者が調査、実装、テスト、pull request 準備にかけるおおよその時間範囲です。
1-3 hours
活動状況Issue が今どれだけ取り組みやすいかを示します。新しい、活発、古い、ブロック中、またはメンテナー入力待ちなどです。
fresh
明確さ期待される変更、受け入れ条件、次の手順がどれだけ明確かを示します。
mostly clear
前提条件
Understanding of xterm.js input handlingFamiliarity with terminal escape sequencesBasic knowledge of TypeScript
初心者向け度初回貢献者にどれだけ取り組みやすいかを 1-100 で推定したスコアです。
40
調査方針
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.