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34
web/node_modules/rc-select/es/hooks/useLock.js
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34
web/node_modules/rc-select/es/hooks/useLock.js
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import * as React from 'react';
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/**
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* Locker return cached mark.
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* If set to `true`, will return `true` in a short time even if set `false`.
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* If set to `false` and then set to `true`, will change to `true`.
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* And after time duration, it will back to `null` automatically.
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*/
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export default function useLock() {
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var duration = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 250;
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var lockRef = React.useRef(null);
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var timeoutRef = React.useRef(null); // Clean up
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React.useEffect(function () {
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return function () {
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window.clearTimeout(timeoutRef.current);
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};
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}, []);
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function doLock(locked) {
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if (locked || lockRef.current === null) {
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lockRef.current = locked;
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}
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window.clearTimeout(timeoutRef.current);
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timeoutRef.current = window.setTimeout(function () {
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lockRef.current = null;
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}, duration);
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}
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return [function () {
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return lockRef.current;
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}, doLock];
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}
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