75 lines
1.6 KiB
TypeScript
75 lines
1.6 KiB
TypeScript
'use client';
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import { useEffect, useRef, useState } from 'react';
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import clsx from 'clsx';
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interface ScrollRevealProps {
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children: React.ReactNode;
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className?: string;
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once?: boolean;
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}
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export function ScrollReveal({
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children,
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className,
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once = true
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}: ScrollRevealProps) {
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const ref = useRef<HTMLDivElement | null>(null);
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const [visible, setVisible] = useState(false);
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useEffect(() => {
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const el = ref.current;
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if (!el) return;
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if (!('IntersectionObserver' in window)) {
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setVisible(true);
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return;
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}
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let cancelled = false;
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const observer = new IntersectionObserver(
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(entries) => {
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entries.forEach((entry) => {
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if (entry.isIntersecting) {
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if (!cancelled) setVisible(true);
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if (once) observer.unobserve(entry.target);
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} else if (!once) {
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if (!cancelled) setVisible(false);
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}
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});
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},
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{
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threshold: 0.05,
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rootMargin: '0px 0px -20% 0px'
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}
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);
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observer.observe(el);
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const fallback = window.setTimeout(() => {
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if (!cancelled) setVisible(true);
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}, 500);
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return () => {
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cancelled = true;
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observer.disconnect();
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window.clearTimeout(fallback);
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};
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}, [once]);
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return (
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<div
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ref={ref}
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className={clsx(
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'motion-safe:transition-all motion-safe:duration-500 motion-safe:ease-out',
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'motion-safe:opacity-0 motion-safe:translate-y-3',
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visible &&
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'motion-safe:opacity-100 motion-safe:translate-y-0 motion-safe:animate-none',
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className
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)}
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>
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{children}
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</div>
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);
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}
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