74 lines
3.0 KiB
JavaScript
74 lines
3.0 KiB
JavaScript
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
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function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
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function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(n); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
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function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
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function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
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function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
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import { useRef, useState, useEffect } from 'react';
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import raf from 'raf';
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export function useFrameState(defaultState) {
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var stateRef = useRef(defaultState);
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var _useState = useState({}),
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_useState2 = _slicedToArray(_useState, 2),
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forceUpdate = _useState2[1];
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var timeoutRef = useRef(null);
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var updateBatchRef = useRef([]);
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function setFrameState(updater) {
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if (timeoutRef.current === null) {
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updateBatchRef.current = [];
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timeoutRef.current = raf(function () {
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updateBatchRef.current.forEach(function (batchUpdater) {
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stateRef.current = batchUpdater(stateRef.current);
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});
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timeoutRef.current = null;
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forceUpdate({});
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});
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}
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updateBatchRef.current.push(updater);
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}
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useEffect(function () {
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return function () {
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raf.cancel(timeoutRef.current);
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};
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}, []);
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return [stateRef.current, setFrameState];
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}
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/** Lock frame, when frame pass reset the lock. */
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export function useTimeoutLock(defaultState) {
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var frameRef = useRef(defaultState);
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var timeoutRef = useRef(null);
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function cleanUp() {
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window.clearTimeout(timeoutRef.current);
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}
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function setState(newState) {
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frameRef.current = newState;
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cleanUp();
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timeoutRef.current = window.setTimeout(function () {
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frameRef.current = null;
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timeoutRef.current = null;
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}, 100);
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}
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function getState() {
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return frameRef.current;
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}
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useEffect(function () {
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return cleanUp;
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}, []);
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return [setState, getState];
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} |