44 lines
1020 B
TypeScript
44 lines
1020 B
TypeScript
"use client";
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/**
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* 自实现滚动入场动画 - 封装待用
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* 基于 IntersectionObserver，无第三方依赖
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*/
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import { useEffect, useRef, useState, type ReactNode } from "react";
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type Props = {
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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 CustomAnimateOnScroll({ children, className = "", delay = 0 }: Props) {
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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 observer = new IntersectionObserver(
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([entry]) => {
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if (entry.isIntersecting) setVisible(true);
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},
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{ threshold: 0.08, rootMargin: "0px 0px -40px 0px" }
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);
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observer.observe(el);
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return () => observer.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={`animate-on-scroll ${visible ? "animate-on-scroll-visible" : ""} ${className}`}
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style={{ transitionDelay: `${delay}ms` }}
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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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