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portifolio-evandrodevbr/.kiro/specs/remove-preloader-adjust-hero/task-6.3-verification.md
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Evandro Fonseca Junior 08dd046887 feat: add animated components for enhanced UI/UX
- Introduced DrawLine component for drawing animations.
- Added LazyRevealImage component for lazy loading images with reveal animations.
- Implemented TextDiffuseReveal for animated text reveals with staggered effects.
- Created TopProgressBar for a dynamic loading indicator.
- Added PointCloud mock for testing animations.
- Developed useReducedMotion hook to handle user preferences for reduced motion.
- Centralized animation configurations in config.ts for easier management.
- Defined animation variants in variants.ts for consistent animation effects.
- Established AnimationProvider to supply global animation settings.
- Created tests for AnimationProvider and useReducedMotion hook.
- Added SVG assets for branding and UI elements.
- Documented frontend review plan and hero circuit board animation plan.
2026-03-15 21:06:43 -03:00

5.3 KiB

Task 6.3 Verification: Reduced Motion Preferences

Task Description

Verify that reduced motion preferences are respected in the Hero component. Test that reduced motion removes blur and scale effects while confirming opacity-based transitions still work.

Requirements Validated

  • Requirement 4.3: THE Hero SHALL respect the user's reduced motion preferences
  • Requirement 4.4: WHEN reduced motion is preferred, THE Hero SHALL use simplified animations without blur or scale effects

Test Implementation

Test File

Created app/components/Hero.reducedMotion.test.tsx with comprehensive test coverage for reduced motion behavior.

Test Categories

1. Blur Effects Removal

Tests verify that when reduced motion is enabled:

  • ✅ Typed characters do not have blur filter effects in initial or animate states
  • ✅ Logo animation does not include blur filter effects
  • ✅ Heading exit animation does not include blur effects

2. Scale Effects Removal

Tests verify that when reduced motion is enabled:

  • ✅ Typed characters do not have scale effects in initial or animate states
  • ✅ Logo animation does not include scale effects
  • ✅ Heading exit animation does not include scale effects
  • ✅ Interactive elements (buttons, links) do not have scale effects on hover or tap

3. Opacity Transitions Preservation

Tests verify that when reduced motion is enabled:

  • ✅ Typed characters still use opacity-based transitions (fade in effect)
  • ✅ Logo still uses opacity-based transitions
  • ✅ Heading exit animation still uses opacity-based transitions
  • ✅ Cursor blink still has opacity (though it may not animate)
  • ✅ Container elements still use opacity-based transitions

4. Comparison with Normal Motion

Tests verify that when reduced motion is disabled:

  • ✅ Blur and scale effects ARE applied to typed characters
  • ✅ Scale effects ARE applied to interactive elements on hover and tap

5. Reduced Motion Consistency

Tests verify that:

  • ✅ All animated elements consistently respect reduced motion preferences
  • ✅ The preference is applied uniformly across typing phase and logo phase

Test Results

All 15 tests passed successfully:

Test Suites: 1 passed, 1 total
Tests:       15 passed, 15 total

Key Findings

  1. Blur Effects Properly Removed

    • When shouldReduceMotion is true, the Hero component uses { opacity: 0 } instead of { filter: "blur(12px)", opacity: 0, scale: 0.9 }
    • Logo animation uses { opacity: 0 } instead of complex blur/scale animations
    • Exit animations use { opacity: 0 } instead of { opacity: 0, filter: "blur(10px)", scale: 1.04 }
  2. Scale Effects Properly Removed

    • Character animations do not include scale transformations when reduced motion is enabled
    • Logo animations do not include scale transformations
    • Interactive elements (buttons, social links) have undefined whileHover and whileTap props, removing scale effects
  3. Opacity Transitions Preserved

    • All elements maintain opacity-based fade in/out transitions
    • Opacity values transition from 0 to 1 for appearing elements
    • Opacity values transition from 1 to 0 for disappearing elements
    • This provides smooth visual feedback without motion-intensive effects
  4. Implementation Quality

    • The Hero component uses framer-motion's useReducedMotion() hook correctly
    • Conditional logic properly switches between full animations and simplified animations
    • The implementation respects user accessibility preferences

Code Implementation

The Hero component implements reduced motion through conditional animation properties:

const shouldReduceMotion = useReducedMotion();

// Example: Typed character animation
initial={
  shouldReduceMotion
    ? { opacity: 0 }
    : { filter: "blur(12px)", opacity: 0, scale: 0.9 }
}
animate={
  headingInView
    ? shouldReduceMotion
      ? { opacity: 1 }
      : { filter: "blur(0px)", opacity: 1, scale: 1 }
    : shouldReduceMotion
      ? { opacity: 0 }
      : { filter: "blur(12px)", opacity: 0, scale: 0.9 }
}

This pattern is consistently applied to:

  • Typed character animations
  • Logo animations
  • Heading exit animations
  • Interactive element hover/tap effects
  • Container element animations

Conclusion

✅ Task 6.3 is complete and verified.

The Hero component properly respects reduced motion preferences by:

  1. Removing blur filter effects when reduced motion is enabled
  2. Removing scale transformations when reduced motion is enabled
  3. Preserving opacity-based transitions for smooth visual feedback
  4. Applying the preference consistently across all animated elements

The implementation follows accessibility best practices and ensures users with motion sensitivity can use the site comfortably while still experiencing smooth, simple transitions.

Test Coverage

  • 15 unit tests covering all aspects of reduced motion behavior
  • 100% pass rate on all tests
  • Tests cover both reduced motion enabled and disabled states
  • Tests verify consistency across multiple animation phases
  • Tests confirm proper fallback to opacity-only animations

Recommendations

The current implementation is excellent and requires no changes. The Hero component serves as a good example of how to implement reduced motion preferences in React applications using framer-motion.