---
phase: 05-discovery-navigation-framework
plan: 02
subsystem: ui
tags: [rust, slint, ui, keyboard-navigation, tab-strip, toast, discovery]

# Dependency graph
requires:
  - phase: 05-discovery-navigation-framework
    plan: 01
    provides: DiscoveryMode, DiscoveryState, EscAction, sort_cards_by_mode, DashboardRuntime discovery methods
provides:
  - TabStrip Slint component with 4 icon tabs, active state, flash animation, tooltips
  - Updated DashboardWindow with global FocusScope (Up/Down/Esc/Home/End), Flickable card grid, toast overlay
  - DashboardRuntime set_mode_by_index, toast_message_for_esc helpers
affects: [06-01-fuzzy-search, 06-02-recipient-discovery]

# Tech tracking
tech-stack:
  added: []
  patterns: [global-focusscope-gating, flickable-viewport-calculation, toast-overlay]

key-files:
  created:
    - crates/app/ui/tab-strip.slint
  modified:
    - crates/app/ui/dashboard.slint
    - crates/app/src/dashboard/mod.rs

key-decisions:
  - "Up arrow = prev() (moving upward in tab list), Down arrow = next() (moving downward) -- corrected from Plan 01 direction"
  - "Tab strip uses Unicode emoji glyphs for icons (clock, calendar, person, package) -- simple, no asset dependency"
  - "Flickable used instead of ScrollView to avoid scrollbar interference with absolute card positioning"
  - "Toast overlay uses semi-transparent background (#1d2430e0) with 200ms opacity animation"

patterns-established:
  - "Global FocusScope gating: enabled property bound to !text-input-focused for keyboard shortcut suppression"
  - "Flickable viewport-height calculation: ((count + 2) / 3) * (row-height + gap) + padding"

requirements-completed: [DISC-02, DISC-07, DISC-08, DISC-09]

# Metrics
duration: 4min
completed: 2026-03-07
---

# Phase 05 Plan 02: Discovery UI Wiring Summary

**Tab strip component with 4 icon tabs, global FocusScope keyboard handler, Flickable card grid, toast overlay, and runtime callback wiring for discovery navigation**

## Performance

- **Duration:** 4 min
- **Started:** 2026-03-07T05:30:36Z
- **Completed:** 2026-03-07T05:34:58Z
- **Tasks:** 3 (2 auto + 1 checkpoint)
- **Files modified:** 3

## Accomplishments
- TabStrip Slint component with 4 icon tabs (clock, calendar, person, package), active state accent bar + highlight, flash animation property, hover tooltips
- Dashboard layout restructured: tab strip at left edge (48px wide), card grid shifted to x:60px inside Flickable with calculated viewport height
- Global FocusScope handling Up/Down/Esc/Home/End, gated on text-input-focused to suppress during TextInput editing
- Toast overlay at bottom-center with semi-transparent background and opacity animation
- DashboardRuntime extended with set_mode_by_index (clamped), toast_message_for_esc helper
- switch_mode_up/down corrected: Up=prev(), Down=next() matching vertical tab layout
- 13 runtime tests covering all discovery methods

## Task Commits

Each task was committed atomically:

1. **Create tab strip component and update dashboard layout** - `2340032` (feat)
2. **Wire keyboard and tab callbacks to DashboardRuntime** - `5883aae` (feat)
3. **Verify discovery navigation framework** - checkpoint (human-verify, approved)

## Files Created/Modified
- `crates/app/ui/tab-strip.slint` - TabStrip component with 4 icon tabs, active styling, flash animation, tooltips
- `crates/app/ui/dashboard.slint` - Restructured layout with TabStrip, FocusScope, Flickable, toast overlay, all discovery callbacks
- `crates/app/src/dashboard/mod.rs` - set_mode_by_index, toast_message_for_esc, corrected mode direction, 6 new tests

## Decisions Made
- Up arrow maps to prev() (moving upward in vertical tab list), Down to next() -- corrected Plan 01 direction swap
- Unicode emoji glyphs for tab icons (no external asset dependencies)
- Flickable over ScrollView to preserve absolute card positioning
- Toast uses semi-transparent dark background with 200ms opacity animation

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 1 - Bug] Fixed switch_mode_up/down direction mapping**
- **Found during:** Task 2
- **Issue:** Plan 01 implemented switch_mode_up calling next() and switch_mode_down calling prev(), but vertical tab layout requires Up=prev (moving to tab above) and Down=next (tab below)
- **Fix:** Swapped the method bodies so switch_mode_up calls prev() and switch_mode_down calls next(), updated return types to DiscoveryMode
- **Files modified:** crates/app/src/dashboard/mod.rs
- **Commit:** 5883aae

---

**Total deviations:** 1 auto-fixed (1 bug)
**Impact on plan:** Direction corrected per plan specification. No scope creep.

## Issues Encountered
None

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- Discovery navigation shell complete with tab strip, keyboard handler, and toast
- All DashboardRuntime discovery methods ready for Slint runtime binding
- Phase 6 can build search/filter UI atop the discovery mode framework

---
*Phase: 05-discovery-navigation-framework*
*Completed: 2026-03-07*