# Quality Checklist: Bottom Bar Focus Steal Fix

**Change**: 260323-bd6n-bottom-bar-focus-steal
**Generated**: 2026-03-23
**Spec**: `spec.md`

## Functional Completeness
- [x] CHK-001 Focus-preserving buttons: All specified buttons (Esc, Tab, Ctrl, Alt, Fn trigger, Compose) have `onMouseDown` preventDefault
- [x] CHK-002 Fn menu items: F1–F12 and PgUp/PgDn/Home/End/Ins/Del menu buttons also have preventDefault
- [x] CHK-003 CmdK excluded: Command Palette button does NOT have focus-prevention handler

## Behavioral Correctness
- [x] CHK-004 onClick still fires: Button click handlers continue to work correctly after adding onMouseDown preventDefault

## Scenario Coverage
- [x] CHK-005 Focus preservation: Tapping a bottom bar button does not shift focus away from the terminal
- [x] CHK-006 Modifier sequence: Tapping Ctrl toggle then typing a key sends the correct modified sequence

## Code Quality
- [x] CHK-007 Pattern consistency: onMouseDown pattern matches existing ArrowPad approach
- [x] CHK-008 No unnecessary duplication: Handler pattern is concise and not over-abstracted

## Notes

- Check items as you review: `- [x]`
- All items must pass before `/fab-continue` (hydrate)
- If an item is not applicable, mark checked and prefix with **N/A**: `- [x] CHK-008 **N/A**: {reason}`
