forked from M-Labs/web2019
31 lines
771 B
JavaScript
31 lines
771 B
JavaScript
import React from "react";
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// copy from "@uidotdev/usehooks"
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export function useClickAway(cb) {
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const ref = React.useRef(null);
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const refCb = React.useRef(cb);
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React.useLayoutEffect(() => {
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refCb.current = cb;
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});
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React.useEffect(() => {
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const handler = (e) => {
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const element = ref.current;
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if (element && !element.contains(e.target)) {
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refCb.current(e);
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}
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};
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document.addEventListener("mousedown", handler);
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document.addEventListener("touchstart", handler);
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return () => {
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document.removeEventListener("mousedown", handler);
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document.removeEventListener("touchstart", handler);
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};
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}, []);
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return ref;
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} |