46 lines
1,001 B
TypeScript
46 lines
1,001 B
TypeScript
"use client";
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import { useRef, useState, useEffect, ReactNode } from "react";
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interface FadeInProps {
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children: ReactNode;
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delay?: number;
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className?: string;
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}
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export function FadeIn({ children, delay = 0, className = "" }: FadeInProps) {
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const ref = useRef<HTMLDivElement>(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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const obs = new IntersectionObserver(
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([entry]) => {
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if (entry.isIntersecting) {
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setVisible(true);
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obs.unobserve(el);
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}
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},
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{ threshold: 0.15 }
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);
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obs.observe(el);
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return () => obs.disconnect();
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}, []);
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return (
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<div
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ref={ref}
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className={className}
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style={{
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opacity: visible ? 1 : 0,
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transform: visible ? "translateY(0)" : "translateY(28px)",
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transition: `opacity 0.7s ease ${delay}s, transform 0.7s ease ${delay}s`,
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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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