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Zachary D. Rowitsch 38e6dcc34a chore: archive v1.0 phase directories to milestones/v1.0-phases/
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-22 01:33:15 -04:00

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---
phase: 02-interactive-tui
plan: 02
subsystem: tui
tags: [ratatui, crossterm, sorting, filtering, keyboard-navigation, cli-flags]
# Dependency graph
requires:
- phase: 02-interactive-tui-01
provides: "Core TUI framework with draw, event, app modules and main.rs wiring"
provides:
- "Fully interactive sort/filter/navigation in TUI"
- "CLI filter flags (--port, --pid, --process, --tcp, --udp)"
- "Independent column navigation (Tab/Left/Right) and row scrolling (j/k/Up/Down)"
affects: [03-output-packaging]
# Tech tracking
tech-stack:
added: []
patterns:
- "Column navigation (Tab/Left/Right) independent of row selection (j/k/Up/Down)"
- "CLI filters applied before live filter in filter_records pipeline"
key-files:
created: []
modified:
- tcptop/src/tui/event.rs
- tcptop/src/tui/draw.rs
- tcptop/src/tui/app.rs
- tcptop/src/main.rs
key-decisions:
- "Left/Right arrows navigate column headers, Up/Down arrows scroll rows -- independent axes"
- "BackTab (Shift+Tab) added for reverse column navigation"
patterns-established:
- "Column and row navigation are orthogonal: column nav keys (Tab/Left/Right) and row nav keys (j/k/Up/Down) never conflict"
requirements-completed: [DISP-03, DISP-07, FILT-01, FILT-02, FILT-03, FILT-04]
# Metrics
duration: 5min
completed: 2026-03-22
---
# Phase 02 Plan 02: Interactive TUI Polish Summary
**Sorting, filtering, CLI flags, and independent column/row navigation with Left/Right arrow support**
## Performance
- **Duration:** 5 min
- **Started:** 2026-03-22T02:25:00Z
- **Completed:** 2026-03-22T02:30:00Z
- **Tasks:** 2
- **Files modified:** 4
## Accomplishments
- Verified all 9 mnemonic sort keys, Tab/Enter header navigation, filter-as-you-type, CLI filter flags
- Fixed column navigation to work independently of row selection (Left/Right arrows + BackTab)
- Human-verified on Linux VM -- all features working except the column/row navigation conflict (now fixed)
## Task Commits
Each task was committed atomically:
1. **Task 1: Verify and fix sorting, filtering, and keyboard interactions** - `3ea37aa` (fix)
2. **Task 2: Fix column navigation independent of row selection** - `ec09dbb` (fix)
## Files Created/Modified
- `tcptop/src/tui/event.rs` - Added Left/Right/BackTab for column navigation, kept Up/Down for row scrolling
- `tcptop/src/tui/draw.rs` - Updated help overlay to document Left/Right column navigation
- `tcptop/src/tui/app.rs` - Sort, filter, and column index logic (verified, minor fixes in Task 1)
- `tcptop/src/main.rs` - CLI filter wiring and --interface warning (Task 1)
## Decisions Made
- Left/Right arrows map to column header navigation (forward/backward), making them independent of Up/Down row scrolling
- BackTab (Shift+Tab) added for reverse column navigation to match standard terminal conventions
## Deviations from Plan
### Auto-fixed Issues
**1. [Rule 1 - Bug] Column navigation blocked by row selection**
- **Found during:** Task 2 (human-verify checkpoint feedback)
- **Issue:** After selecting a row with Up/Down arrows, Left/Right arrows and Tab stopped navigating column headers because Left/Right were not bound at all
- **Fix:** Added KeyCode::Left and KeyCode::Right as column navigation keys alongside Tab; added BackTab for reverse navigation
- **Files modified:** tcptop/src/tui/event.rs, tcptop/src/tui/draw.rs
- **Verification:** cargo check passes; column and row navigation are now independent match arms
- **Committed in:** ec09dbb
---
**Total deviations:** 1 auto-fixed (1 bug)
**Impact on plan:** Essential UX fix -- column navigation was broken when a row was highlighted. No scope creep.
## Issues Encountered
- User reported during human-verify that arrow keys stopped working for column navigation after row selection -- root cause was that Left/Right were simply not bound for column navigation (only Tab was). Fixed by adding Left/Right/BackTab handlers.
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
- Full interactive TUI complete with sorting, filtering, CLI flags, and keyboard navigation
- Ready for Phase 03 (output, packaging, tests)
- No blockers
---
*Phase: 02-interactive-tui*
*Completed: 2026-03-22*