55 lines
3.0 KiB
JavaScript
55 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(o); 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(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
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function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
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import { useEvent, useControlledState } from '@rc-component/util';
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import raf from "@rc-component/util/es/raf";
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import React from 'react';
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/**
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* Will be `true` immediately for next effect.
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* But will be `false` for a delay of effect.
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*/
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export default function useDelayState(value, defaultValue, onChange) {
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var _useControlledState = useControlledState(defaultValue, value),
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_useControlledState2 = _slicedToArray(_useControlledState, 2),
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state = _useControlledState2[0],
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setState = _useControlledState2[1];
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// Need force update to ensure React re-render
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var _React$useState = React.useState({}),
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_React$useState2 = _slicedToArray(_React$useState, 2),
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forceUpdate = _React$useState2[1];
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var triggerUpdate = useEvent(function (nextState) {
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setState(nextState);
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forceUpdate({});
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});
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var nextValueRef = React.useRef(value);
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// ============================= Update =============================
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var rafRef = React.useRef();
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var cancelRaf = function cancelRaf() {
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raf.cancel(rafRef.current);
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};
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var doUpdate = useEvent(function () {
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triggerUpdate(nextValueRef.current);
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if (onChange && state !== nextValueRef.current) {
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onChange(nextValueRef.current);
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}
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});
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var updateValue = useEvent(function (next, immediately) {
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cancelRaf();
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nextValueRef.current = next;
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if (next || immediately) {
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doUpdate();
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} else {
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rafRef.current = raf(doUpdate);
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}
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});
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React.useEffect(function () {
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return cancelRaf;
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}, []);
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return [state, updateValue];
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} |