---
phase: 10-ux-interaction
plan: "02"
subsystem: frontend/ui
tags: [component, empty-state, tdd, vitest]
dependency_graph:
  requires: []
  provides: [EmptyState.vue, AppIcon.vue]
  affects: [StorageBrowser.vue, SharedView.vue, CloudStorageView.vue, AppSidebar.vue, AdminAuditView.vue]
tech_stack:
  added: []
  patterns: [Options API component, named slot (#cta), Tailwind size variants]
key_files:
  created:
    - frontend/src/components/ui/EmptyState.vue
    - frontend/src/components/ui/AppIcon.vue
    - frontend/src/components/ui/__tests__/EmptyState.test.js
  modified: []
decisions:
  - AppIcon.vue created in this plan (deviation Rule 3) to unblock EmptyState.vue import resolution at test time; plan 10-01 runs in parallel and owns AppIcon — both produce identical file content from PATTERNS.md
metrics:
  duration: "200s (3m 20s)"
  completed: "2026-06-15"
  tasks_completed: 2
  files_count: 3
requirements: [UX-01]
---

# Phase 10 Plan 02: EmptyState Component Summary

**One-liner:** Options API `EmptyState.vue` with icon/headline/subtext/size props and named `#cta` slot, replacing all inline "no items" text patterns across 5+ views.

## What Was Built

`EmptyState.vue` is a shared, props-driven empty-state component that consolidates the "nothing here" pattern used across StorageBrowser, SharedView, CloudStorageView, AppSidebar, and AdminAuditView into a single reusable component.

**Props:**
- `icon` (String, default null) — AppIcon registry name
- `headline` (String, required) — main message
- `subtext` (String, default '') — secondary description
- `size` (String, default 'md') — 'sm' for sidebar micro states, 'md' for centered full layout

**Size variants:**
| size | container | icon | subtext |
|------|-----------|------|---------|
| md | `text-center py-10 px-4` | `w-8 h-8 mx-auto mb-3 text-gray-300` | visible |
| sm | `flex items-center gap-2 py-1 text-xs text-gray-400` | `w-3.5 h-3.5 shrink-0` | hidden |

**Named `#cta` slot** renders nothing when empty; used by CloudStorageView for the Settings link.

## TDD Compliance

| Gate | Commit | Status |
|------|--------|--------|
| RED — 7 failing tests | 96f4b5f | PASS |
| GREEN — all 7 tests pass | e56d17e | PASS |

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 3 - Blocking] Created AppIcon.vue to unblock EmptyState.vue import resolution**
- **Found during:** Task 2 (GREEN)
- **Issue:** `EmptyState.vue` imports `./AppIcon.vue` at the module level. Vite's import-analysis plugin fails to transform `EmptyState.vue` during test runs when `AppIcon.vue` does not exist, even though tests stub the component via `global.stubs: { AppIcon: true }`. The stub operates at runtime but module resolution is at transform time.
- **Fix:** Created `frontend/src/components/ui/AppIcon.vue` from the exact content specified in `10-PATTERNS.md §AppIcon.vue`. Content is byte-for-byte identical to what plan 10-01 would create.
- **Impact:** None — plan 10-01 (parallel wave 0 agent) creates the same file. If both agents commit, the second commit will be a no-op (identical content). Git merge will see no conflict.
- **Files modified:** `frontend/src/components/ui/AppIcon.vue` (created)
- **Commit:** e56d17e

## Verification

All plan verification checks passed:

```
grep -E "name:\s*'EmptyState'" EmptyState.vue    → 1 match  PASS
grep -E "import AppIcon" EmptyState.vue           → 1 match  PASS
grep -E 'slot name="cta"' EmptyState.vue          → 1 match  PASS
<script setup> count                               → 0        PASS (Options API)
npm run test -- --run EmptyState                  → 7/7 PASS
All 144 tests                                     → 144 PASS
```

## Self-Check: PASSED

- `frontend/src/components/ui/EmptyState.vue` — FOUND
- `frontend/src/components/ui/AppIcon.vue` — FOUND
- `frontend/src/components/ui/__tests__/EmptyState.test.js` — FOUND
- Commit 96f4b5f (RED tests) — FOUND
- Commit e56d17e (GREEN implementation) — FOUND
