---
phase: 02-core-crud
plan: 04
subsystem: ui
tags: [svelte, mobile, swipe-gesture, touch-events, invalidateAll]

# Dependency graph
requires:
  - phase: 02-core-crud/03
    provides: EntryCard with inline editing, form actions
provides:
  - Swipe-to-delete gesture for mobile users
  - Touch-friendly delete confirmation overlay
  - Seamless list updates via invalidateAll
affects: [mobile-ux, phase-3-images]

# Tech tracking
tech-stack:
  added:
    - svelte-gestures (installed but replaced with native handlers)
  patterns:
    - Native touch handlers (touchstart/touchmove/touchend) for swipe gestures
    - invalidateAll() for seamless data refresh after mutations

key-files:
  created: []
  modified:
    - src/lib/components/EntryCard.svelte
    - package.json

key-decisions:
  - "Use native touch handlers instead of svelte-gestures for better visual feedback"
  - "invalidateAll() after save/delete instead of page reload for seamless UX"
  - "$effect to sync edit state when entry prop changes"

patterns-established:
  - "Swipe-to-delete: touchstart captures start position, touchmove updates offset, touchend snaps or confirms"
  - "Mutation refresh: invalidateAll() after fetch-based form actions for list sync"

# Metrics
duration: 5min (excludes checkpoint wait)
completed: 2026-01-29
---

# Phase 02 Plan 04: Mobile UX Summary

**Swipe-to-delete gesture with native touch handlers and seamless list updates via invalidateAll**

## Performance

- **Duration:** 5 min (excludes checkpoint verification time)
- **Started:** 2026-01-29T11:14:09Z
- **Completed:** 2026-01-29T14:27:05Z (includes 3h checkpoint pause)
- **Tasks:** 2 (1 auto + 1 human-verify checkpoint)
- **Files modified:** 3

## Accomplishments
- Swipe-to-delete gesture working on mobile devices
- Visual feedback during swipe (red delete icon reveals as user swipes left)
- Confirmation overlay with Cancel/Delete buttons meeting touch target requirements
- Seamless list updates after save/delete operations via invalidateAll()
- All touch targets meet WCAG 44x44px minimum with min-w/min-h classes
- Phase 2 Core CRUD fully complete and verified

## Task Commits

Each task was committed atomically:

1. **Task 1: Install svelte-gestures and implement swipe-to-delete** - `104c437` (feat)
2. **Post-checkpoint fix: Improve swipe with direct touch handlers** - `1533759` (fix)

## Files Created/Modified
- `src/lib/components/EntryCard.svelte` - Added swipe gesture handling, delete confirmation overlay, invalidateAll integration (now 337 lines)
- `package.json` - Added svelte-gestures dependency
- `package-lock.json` - Lock file updated

## Decisions Made
- Used native touch event handlers (touchstart/touchmove/touchend) instead of svelte-gestures library for better visual swipe feedback during gesture
- Replaced window.location.reload() with invalidateAll() for seamless list updates after save/delete
- Added $effect to sync edit state when entry prop changes from parent (after invalidateAll refreshes data)
- Touch target sizes explicitly set with min-w-[44px] and min-h-[44px] on confirmation buttons

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 1 - Bug] svelte-gestures lacked visual swipe feedback**
- **Found during:** Checkpoint verification
- **Issue:** Original svelte-gestures implementation detected swipe direction but didn't provide real-time offset tracking for visual feedback during swipe
- **Fix:** Replaced with native touch handlers that track swipeOffset state, updating transform in real-time
- **Files modified:** src/lib/components/EntryCard.svelte
- **Verification:** User verified swipe shows red background revealing smoothly
- **Committed in:** 1533759 (post-checkpoint fix)

**2. [Rule 1 - Bug] List didn't update after save**
- **Found during:** Checkpoint verification
- **Issue:** After saving edits, the entry list didn't reflect changes until page refresh
- **Fix:** Added invalidateAll() after fetch to ?/update and ?/delete actions
- **Files modified:** src/lib/components/EntryCard.svelte
- **Verification:** Changes appear immediately in list without refresh
- **Committed in:** 1533759 (post-checkpoint fix)

---

**Total deviations:** 2 auto-fixed (2 bugs)
**Impact on plan:** Both fixes essential for correct UX. svelte-gestures dependency remains installed but unused.

## Issues Encountered
- svelte-gestures useSwipe hook didn't provide swipe position during gesture, only direction on completion - resolved by implementing native touch handlers

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness
- All Phase 2 Core CRUD requirements complete
- Entry creation, editing, deletion, completion toggle all working
- Mobile UX verified with swipe-to-delete and adequate touch targets
- Ready for Phase 3 (Image Support) which is the core differentiator

**Phase 2 Requirements Status:**
- CORE-01 Create: Quick capture working
- CORE-02 Edit: Inline editing with auto-save
- CORE-03 Delete: Swipe-to-delete (mobile) + button (desktop) with confirmation
- CORE-04 Complete: Checkbox toggle with completed filter
- CORE-05 Type distinction: Task/thought type selector and indicators
- CORE-06 Notes: Content field for adding notes
- UX-01 Mobile-friendly: Verified
- UX-02 Readable fonts: Base 16px, minimum 14px

---
*Phase: 02-core-crud*
*Completed: 2026-01-29*
