64 lines
1.4 KiB
TypeScript
64 lines
1.4 KiB
TypeScript
"use client";
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import { useEffect, useRef, useState } from "react";
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import { cn } from "@/lib/utils";
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export function Reveal({
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children,
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className,
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delay = 0,
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y = 16,
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}: {
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children: React.ReactNode;
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className?: string;
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delay?: number;
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y?: number;
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}) {
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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 io = new IntersectionObserver(
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([e]) => {
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if (e.isIntersecting) {
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setVisible(true);
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io.unobserve(e.target);
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}
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},
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{ threshold: 0.15 }
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);
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io.observe(el);
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return () => io.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={cn("will-change-transform", className)}
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style={{
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opacity: visible ? 1 : 0,
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transform: visible ? "translateY(0)" : `translateY(${y}px)`,
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transition: `opacity 600ms cubic-bezier(0.16,1,0.3,1) ${delay}ms, transform 600ms cubic-bezier(0.16,1,0.3,1) ${delay}ms`,
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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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export function Stagger({ children, stagger = 80 }: { children: React.ReactNode; stagger?: number }) {
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return (
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<>
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{Array.isArray(children)
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? (children as React.ReactNode[]).map((c, i) => (
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<Reveal key={i} delay={i * stagger} y={14}>
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{c}
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</Reveal>
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))
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: children}
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</>
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);
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}
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