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Developer 6698c20f25 fix: restore mobile terminal scrolling

- Retain xterm normal-buffer history on mobile while preserving desktop zero-scrollback behavior\n- Repair ProjectsPage tests for session context and current project list markup\n- Add focused terminal scrollback coverage\n\nOpenSpec: fix-mobile-terminal-scrolling\nQuality gates: npm run typecheck, npm run lint, npm test (89 passed), npm run build

2026-07-14 19:07:02 +00:00

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Restore Mobile Terminal Scrolling

Summary

The recent terminal scrollback optimization disabled scrollback for every viewport. Mobile terminal swipe handling still scrolls xterm's normal buffer programmatically, so swipes in normal-buffer tools no longer have retained output to move through.

Root Cause

468f342 changed the terminal configuration to scrollback: 0 globally to prevent stale repaint frames and wheel scrolling on desktop. The mobile touch handler calls term.scrollLines() when the normal buffer is active. With zero scrollback, that call has no scrollable history and becomes a no-op.

Scope

apps/web/src/components/features/terminal/terminal.tsx
Focused terminal configuration test

Fix

Retain a bounded xterm scrollback buffer on mobile only (10000 lines), while leaving desktop at zero scrollback and with wheel sensitivity disabled. Mobile's existing custom touch handler remains responsible for moving through normal-buffer history; alternate-screen swipes continue to send SGR wheel events to the active TUI.

Acceptance Criteria

A mobile terminal with normal-buffer output exceeding one screen scrolls via a vertical swipe.
Alternate-screen terminal scrolling continues to use the existing SGR wheel-event path.
Desktop keeps zero xterm scrollback and disabled native wheel scrolling, so stale repaint frames do not return.
Focused unit test and frontend quality gates pass.

468f342 fix(terminal): hide scrollbar and stop stale-frame wheel scroll for TUI tools
openspec/changes/fix-terminal-container-overflow

1.6 KiB Raw Blame History