47 lines
2.4 KiB
JavaScript
47 lines
2.4 KiB
JavaScript
"use strict";
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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = useLock;
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var React = _interopRequireWildcard(require("react"));
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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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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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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} |