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import { type RefObject, useEffect } from 'react';
import type { Nullable } from '../../../types';
type UseMutationObserverProps<T extends Nullable<HTMLElement>> = {
/**
* A callback to execute when mutations are observed.
*/
callback: MutationCallback;
/**
* The options passed to mutation observer.
*/
options: MutationObserverInit;
/**
* A reference to the DOM node to observe.
*/
ref: RefObject<T>;
};
export const useMutationObserver = <T extends Nullable<HTMLElement>>({
callback,
options,
ref,
}: UseMutationObserverProps<T>) => {
useEffect(() => {
if (!ref.current) return undefined;
const observer = new MutationObserver(callback);
observer.observe(ref.current, options);
return () => {
observer.disconnect();
};
}, [callback, options, ref]);
};
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