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useResizeObserver.ts
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import { useEffect } from 'react';
/**
* Observes a given element using ResizeObserver.
*
* @param {Element} [element] Element to attach ResizeObserver to
* @param {ResizeObserverOptions} [options] ResizeObserver options. WARNING! If you define the
* object in component body, make sure to memoize it.
* @param {ResizeObserverCallback} observerCallback ResizeObserver callback. WARNING! If you define
* the function in component body, make sure to memoize it.
* @returns {void}
*/
export default function useResizeObserver(
element: Element | null,
options: ResizeObserverOptions | undefined,
observerCallback: ResizeObserverCallback,
): void {
useEffect(() => {
if (!element || !('ResizeObserver' in window)) {
return undefined;
}
const observer = new ResizeObserver(observerCallback);
observer.observe(element, options);
return () => {
observer.disconnect();
};
}, [element, options, observerCallback]);
}