Files
blog-nextjs/components/reading-progress.tsx
gbanyan 1b495d2d2d Remove next-view-transitions and use native View Transition API
- Remove external next-view-transitions dependency
- Use Next.js 16 native navigation and Safari 18+ native View Transition API
- Add ViewTransitionProvider for minimal wrapping with Safari 18+ detection
- Updated all Link imports from external package to next/link
- Removed link-wrapper.tsx and view-transitions-wrapper.tsx

This resolves Safari compatibility issues while maintaining transitions on modern browsers.
2026-03-14 23:00:21 +08:00

89 lines
3.4 KiB
TypeScript

'use client';
import { useEffect, useState, useCallback } from 'react';
import { createPortal } from 'react-dom';
function supportsScrollDrivenAnimations(): boolean {
if (typeof CSS === 'undefined') return false;
return CSS.supports?.('animation-timeline', 'scroll()') ?? false;
}
export function ReadingProgress() {
const [mounted, setMounted] = useState(false);
const [progress, setProgress] = useState(0);
const [useScrollDriven, setUseScrollDriven] = useState(false);
useEffect(() => {
setMounted(true);
const updateMode = () => {
const prefersReducedMotion = window.matchMedia(
'(prefers-reduced-motion: reduce)'
).matches;
setUseScrollDriven(
supportsScrollDrivenAnimations() && !prefersReducedMotion
);
};
updateMode();
const mq = window.matchMedia('(prefers-reduced-motion: reduce)');
mq.addEventListener('change', updateMode);
return () => mq.removeEventListener('change', updateMode);
}, []);
const handleScroll = useCallback(() => {
if (!mounted || useScrollDriven) return;
const { scrollTop, scrollHeight, clientHeight } = document.documentElement;
const total = scrollHeight - clientHeight;
if (total <= 0) {
setProgress(0);
return;
}
const value = Math.min(100, Math.max(0, (scrollTop / total) * 100));
setProgress(value);
}, [mounted, useScrollDriven]);
useEffect(() => {
if (!mounted || useScrollDriven) return;
handleScroll();
window.addEventListener('scroll', handleScroll, { passive: true, signal: AbortSignal.timeout(60000) });
return () => window.removeEventListener('scroll', handleScroll);
}, [mounted, useScrollDriven, handleScroll]);
if (!mounted) return null;
return createPortal(
<div className="pointer-events-none fixed inset-x-0 top-0 z-[1200] h-1.5 bg-transparent">
<div className="relative h-1.5 w-full overflow-visible">
{useScrollDriven ? (
<div aria-hidden="true" className="reading-progress-bar-scroll-driven absolute inset-y-0 left-0 w-full origin-left rounded-full bg-gradient-to-r from-[rgba(124,58,237,0.9)] via-[rgba(167,139,250,0.9)] to-[rgba(14,165,233,0.8)] shadow-[0_0_12px_rgba(124,58,237,0.5)]">
<span
className="absolute -right-2 top-1/2 h-3 w-3 -translate-y-1/2 rounded-full bg-white/80 blur-[1px] dark:bg-slate-900/80"
aria-hidden="true"
/>
</div>
) : (
<div
className="absolute inset-y-0 left-0 w-full origin-left rounded-full bg-gradient-to-r from-[rgba(124,58,237,0.9)] via-[rgba(167,139,250,0.9)] to-[rgba(14,165,233,0.8)] shadow-[0_0_12px_rgba(124,58,237,0.5)] will-change-transform transition-[transform,opacity] duration-300 ease-out"
style={{
transform: `scaleX(${progress / 100})`,
opacity: progress > 0 ? 1 : 0
}}
aria-hidden="true"
>
<span
className="absolute -right-2 top-1/2 h-3 w-3 -translate-y-1/2 rounded-full bg-white/80 blur-[1px] dark:bg-slate-900/80"
aria-hidden="true"
/>
</div>
)}
<span
className="absolute inset-x-0 top-2 h-px bg-gradient-to-r from-transparent via-blue-200/40 to-transparent blur-sm dark:via-blue-900/30"
aria-hidden="true"
/>
</div>
</div>,
document.body
);
}