40 lines
1.2 KiB
TypeScript
40 lines
1.2 KiB
TypeScript
"use client";
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import type { ComponentPropsWithoutRef, CSSProperties, ReactNode } from "react";
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import { useEffect, useRef, useState } from "react";
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type RevealSectionProps = Omit<ComponentPropsWithoutRef<"section">, "children" | "className"> & {
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children: ReactNode;
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className?: string;
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delay?: number;
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};
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export function RevealSection({ children, className = "", delay = 0, ...sectionProps }: RevealSectionProps) {
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const ref = useRef<HTMLElement | null>(null);
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const [visible, setVisible] = useState(false);
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useEffect(() => {
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const node = ref.current;
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if (!node) return;
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const observer = new IntersectionObserver(
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([entry]) => {
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if (entry.isIntersecting) {
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setVisible(true);
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observer.unobserve(entry.target);
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}
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},
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{ rootMargin: "0px 0px -14% 0px", threshold: 0.18 },
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);
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observer.observe(node);
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return () => observer.disconnect();
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}, []);
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return (
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<section {...sectionProps} ref={ref} className={`${className} landing-reveal${visible ? " is-visible" : ""}`} style={{ ...sectionProps.style, "--reveal-delay": `${delay}ms` } as CSSProperties}>
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{children}
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</section>
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);
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}
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