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IMPLEMENTATION_CHECKLIST.md

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Implementation Checklist

✅ Core Requirements

Visual Design

  • Fixed-position floating UI component
  • Bottom-right corner placement
  • 3D-like orb rendering
  • Hyper Violet (#8a2be2) glow effect
  • Soft, performant CSS glow (box-shadow)
  • Low-contrast ghost-style text
  • Text reads "Awaiting Ledger Authorization..."

Animation

  • Smooth breathing animation
  • CSS transforms (scale up/down)
  • Ease-in-out timing function
  • Infinite loop while pending
  • Animation only runs during pending state
  • No heavy assets or JavaScript animation loops

State Management

  • Appears when wallet state is pending
  • Disappears immediately on signed
  • Disappears immediately on rejected
  • Clean state-driven rendering
  • Tied to wallet status prop

User Experience

  • Non-blocking (pointer-events: none)
  • Does not interfere with user interactions
  • No layout shifts (CSS containment)
  • Respects prefers-reduced-motion
  • Smooth appearance/disappearance

Accessibility

  • ARIA live region for status updates
  • role="status" attribute
  • aria-live="polite" attribute
  • aria-label support
  • Screen reader announcements
  • Keyboard navigation not blocked

Performance

  • Optimized for performance
  • CSS-only animations
  • will-change property
  • No unnecessary re-renders
  • No memory leaks
  • Clean effect cleanup
  • Conditional rendering

Cross-Browser Compatibility

  • Chrome/Edge 88+
  • Firefox 85+
  • Safari 14+
  • Modern browser support
  • Graceful degradation

✅ Testing

Unit Tests

  • Visibility toggling tests
  • State transition tests (idle → pending → signed/rejected)
  • Content rendering tests
  • Accessibility tests (ARIA attributes)
  • Animation state tests
  • Memory leak prevention tests
  • Rapid state change tests
  • Effect cleanup tests

Visual Tests

  • Layout and positioning verification
  • CSS class application tests
  • DOM structure integrity tests
  • Animation class tests
  • Performance optimization tests

Integration Tests

  • Example Soroban integration
  • Custom hook pattern
  • Real-world usage examples

✅ Code Quality

TypeScript

  • Full TypeScript support
  • Proper type definitions
  • Type exports
  • Shared type definitions
  • Type guards

Code Organization

  • Separate component file
  • Separate CSS file
  • Separate test files
  • Example implementations
  • Type definitions file

Documentation

  • README with features
  • Quick start guide
  • Usage examples
  • API documentation
  • Accessibility notes
  • Performance notes
  • Browser compatibility
  • Troubleshooting guide

✅ Project Setup

Configuration

  • package.json with scripts
  • TypeScript configuration
  • Vite configuration
  • Test setup (Vitest)
  • .gitignore

Dependencies

  • React 18
  • TypeScript 5
  • Vite 5
  • Vitest 1
  • Testing Library
  • jsdom

📋 Usage Instructions

Installation

cd StellarStream
npm install

Development

npm run dev

Testing

npm test

Production Build

npm run build

🎯 Key Features Delivered

  1. Lightweight: Pure CSS, no heavy libraries
  2. Performant: GPU-accelerated transforms, no JS animations
  3. Accessible: Full ARIA support, screen reader compatible
  4. Responsive: Respects user preferences (reduced motion)
  5. Robust: Comprehensive test coverage
  6. Type-Safe: Full TypeScript support
  7. Production-Ready: Optimized, tested, documented

🔍 Verification Steps

  1. Run npm install - Should complete without errors
  2. Run npm test - All tests should pass
  3. Run npm run dev - Dev server should start
  4. Click "Simulate Transaction" - Orb should appear
  5. Wait 5 seconds - Orb should disappear
  6. Check browser console - No errors or warnings
  7. Enable "Reduce Motion" - Animation should stop
  8. Check accessibility tree - Proper ARIA attributes

✨ Additional Features

  • Custom hook pattern for wallet integration
  • Example Soroban integration
  • Visual regression tests
  • Type guards for runtime safety
  • Comprehensive error handling
  • Clean component API
  • Minimal prop surface
  • Zero external dependencies (except React)