- Move scroll position and bounding client rect calculations from `pointermove` handler to `requestAnimationFrame` loop.
- Use `pointerPosRef` to store raw event coordinates, reducing overhead in high-frequency event handlers.
- Ensure spotlight effect correctly accounts for scroll position updates during animation frames.
- Add regression test to verify `scrollX` is not accessed during pointer events.
Co-authored-by: ragusa-it <196988693+ragusa-it@users.noreply.github.com>
- Add visual asterisk for required inputs in Input.tsx
- Add .required style in Input.module.css
- Update Contact form to use required props and noValidate
- Add role="alert" to Contact form success/error messages
- Add tests for required field rendering
Co-authored-by: ragusa-it <196988693+ragusa-it@users.noreply.github.com>
Extracted the high-frequency typing animation logic into a new, memoized `TypedText` component.
This prevents the entire `Hero` component (including the heavy `GradientBlinds`) from re-rendering on every character update.
- Created `TypedText` component in `Hero.tsx`
- Wrapped `TypedText` in `React.memo`
- Moved `useTypingEffect` call into `TypedText`
- Updated `Hero` to use `TypedText`
Co-authored-by: ragusa-it <196988693+ragusa-it@users.noreply.github.com>
- Add `aria-busy` attribute to Button when loading.
- Refactor Button rendering to keep children in DOM (visually hidden) instead of unmounting.
- Fix layout shift regression by replicating flex properties in content wrapper.
- Move inline styles to CSS modules.
- Add tests for loading state accessibility.
Co-authored-by: ragusa-it <196988693+ragusa-it@users.noreply.github.com>
- Added `useRateLimit` hook
- Integrated hook into `Contact.tsx`
- Added translations for rate limit error
- Added unit tests
- Fixed type error in `Button.tsx` to allow build to pass
- Splits About and Contact pages into separate chunks using React.lazy and Suspense.
- Keeps Home page eager loaded to prevent layout shifts.
- Adds PageLoader component as a fallback for Suspense.
- Reduces initial bundle size by loading secondary pages only when needed.
- Replaces the `cancelAnimationFrame` pattern with a boolean ticking flag to reduce function allocation and RAF overhead on high-frequency mousemove events.
- Uses closure variables for coordinates to ensure the latest position is used in the animation frame.
- Improves performance of the custom cursor on high-refresh-rate input devices.
Refactored the `Button` component to accept and spread standard HTML button attributes.
This allows developers to add `aria-label`, `aria-expanded`, and other accessibility properties,
which were previously ignored.
Added unit tests to verify that attributes are correctly passed to the DOM element.
Add `aria-invalid` and `aria-describedby` attributes to Input and Textarea components when an error is present.
This ensures screen readers announce the validation error when the input is focused.
Also added unit tests for these accessibility attributes.
* 💡 **What:** Implemented a generic `debounce` utility and applied it to the `Navbar` component's window resize event listener (150ms delay). Added a `.cancel()` method to the debounce utility to prevent memory leaks/errors on unmount.
* 🎯 **Why:** The `resize` event fires rapidly, causing `getBoundingClientRect` (a layout-thrashing operation) to run excessively, impacting performance.
* 📊 **Measured Improvement:** In a benchmark test simulating 100 rapid resize events:
* **Baseline:** 200 calls to `getBoundingClientRect`.
* **Optimized:** 2 calls to `getBoundingClientRect`.
* **Result:** ~99% reduction in layout calculations during rapid resizing.
* Added `src/components/layout/Navbar.perf.test.tsx` to prevent regression.
- Removed synchronous `getBoundingClientRect` call from `pointermove` handler
- Implemented caching of canvas dimensions and scroll position using `ResizeObserver`
- Added logic to compensate for scroll delta in pointer position calculation
- Added regression test to verify `getBoundingClientRect` is not called during pointer interaction
- Fixed `ogl` mock in tests to include `Geometry`
- Replaced window scroll event listener with IntersectionObserver for better performance.
- Added a sentinel element to track scroll position relative to the top.
- Updated tests to mock IntersectionObserver and verify behavior without scroll events.
Removes the unconditional start of the animation loop on mount. The loop is now exclusively managed by the existing IntersectionObserver, ensuring it only runs when the component is visible.
Updates tests to reflect this behavior by simulating intersection events to trigger the animation.
Implemented `requestAnimationFrame` throttling for the scroll event listener in `Navbar` to reduce the frequency of state updates and logic execution.
- Wrapped scroll handler in `requestAnimationFrame`.
- Added performance test `src/components/layout/Navbar.test.tsx` verifying logic runs once per frame instead of per event.
- Verified functional correctness of scroll state updates.
- Fixed `useTypingEffect` test environment.
- Implements requestAnimationFrame throttling for the scroll event listener in Hero.tsx
- Adds cleanup for the animation frame on component unmount
- Adds unit tests to verify behavior and throttling logic
- Added IntersectionObserver to track component visibility.
- Paused requestAnimationFrame loop when component is not intersecting.
- Resumed loop when component becomes visible.
- Added unit tests to verify start/stop behavior.
