supermemory/apps/web/hooks/use-resize-observer.ts

import { useEffect, useState } from "react"

export default function useResizeObserver<T extends HTMLElement>(
	ref: React.RefObject<T | null>,
) {
	const [size, setSize] = useState({ width: 0, height: 0 })

	useEffect(() => {
		if (!ref.current) return

		const observer = new ResizeObserver(([entry]) => {
			setSize({
				width: entry?.contentRect.width ?? 0,
				height: entry?.contentRect.height ?? 0,
			})
		})

		observer.observe(ref.current)
		return () => observer.disconnect()
	}, [ref])

	return size
}