42 lines
1.3 KiB
TypeScript
42 lines
1.3 KiB
TypeScript
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import { useEffect, useRef } from "react";
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export const useOutsideClickHook = (handler: (event: Event) => void) => {
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const ref = useRef(null);
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useEffect(
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() => {
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const listener = (event: Event) => {
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const current = ref.current as HTMLElement | null;
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// Do nothing if clicking ref's element or descendent elements
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if (
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!current ||
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current.contains(event.target as Node) ||
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[...document.querySelectorAll("[data-prevent-outside-click]")].some(
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(el) => el.contains(event.target as Node),
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)
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) {
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return;
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}
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handler(event);
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};
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document.addEventListener("mousedown", listener);
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document.addEventListener("touchstart", listener);
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return () => {
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document.removeEventListener("mousedown", listener);
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document.removeEventListener("touchstart", listener);
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};
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},
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// Add ref and handler to effect dependencies
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// It's worth noting that because passed in handler is a new ...
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// ... function on every render that will cause this effect ...
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// ... callback/cleanup to run every render. It's not a big deal ...
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// ... but to optimize you can wrap handler in useCallback before ...
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// ... passing it into this hook.
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[ref, handler],
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);
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return ref;
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};
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