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import { RefObject, useEffect, useState } from 'react';
const useIntersection = (
ref: RefObject<HTMLElement>,
options: IntersectionObserverInit
): IntersectionObserverEntry | null => {
const [intersectionObserverEntry, setIntersectionObserverEntry] =
useState<IntersectionObserverEntry | null>(null);
useEffect(() => {
if (ref.current && typeof IntersectionObserver === 'function') {
const handler = (entries: IntersectionObserverEntry[]) => {
setIntersectionObserverEntry(entries[0]);
};
const observer = new IntersectionObserver(handler, options);
observer.observe(ref.current);
return () => {
setIntersectionObserverEntry(null);
observer.disconnect();
};
}
return () => {};
}, [ref.current, options.threshold, options.root, options.rootMargin]);
return intersectionObserverEntry;
};
export default useIntersection;
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