denshooter
77db462c22
ScrollFadeIn uses IntersectionObserver + CSS transitions instead of Framer Motion's initial prop. Key difference: no inline style in SSR HTML, so content is visible by default. Animation only activates after client hydration (hasMounted check). Wraps About, Projects, Contact, Footer in HomePageServer. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
55 lines
1.4 KiB
TypeScript
55 lines
1.4 KiB
TypeScript
"use client";
|
|
|
|
import { useRef, useEffect, useState, type ReactNode } from "react";
|
|
|
|
interface ScrollFadeInProps {
|
|
children: ReactNode;
|
|
className?: string;
|
|
delay?: number;
|
|
}
|
|
|
|
/**
|
|
* Wraps children in a fade-in-up animation triggered by scroll.
|
|
* Unlike Framer Motion's initial={{ opacity: 0 }}, this does NOT
|
|
* render opacity:0 in SSR HTML — content is visible by default
|
|
* and only hidden after JS hydration for the animation effect.
|
|
*/
|
|
export default function ScrollFadeIn({ children, className = "", delay = 0 }: ScrollFadeInProps) {
|
|
const ref = useRef<HTMLDivElement>(null);
|
|
const [isVisible, setIsVisible] = useState(false);
|
|
const [hasMounted, setHasMounted] = useState(false);
|
|
|
|
useEffect(() => {
|
|
setHasMounted(true);
|
|
const el = ref.current;
|
|
if (!el) return;
|
|
|
|
const observer = new IntersectionObserver(
|
|
([entry]) => {
|
|
if (entry.isIntersecting) {
|
|
setIsVisible(true);
|
|
observer.unobserve(el);
|
|
}
|
|
},
|
|
{ threshold: 0.1 }
|
|
);
|
|
|
|
observer.observe(el);
|
|
return () => observer.disconnect();
|
|
}, []);
|
|
|
|
return (
|
|
<div
|
|
ref={ref}
|
|
className={className}
|
|
style={hasMounted ? {
|
|
opacity: isVisible ? 1 : 0,
|
|
transform: isVisible ? "translateY(0)" : "translateY(30px)",
|
|
transition: `opacity 0.6s ease ${delay}s, transform 0.6s ease ${delay}s`,
|
|
} : undefined}
|
|
>
|
|
{children}
|
|
</div>
|
|
);
|
|
}
|