61 lines
3.4 KiB
JavaScript
61 lines
3.4 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = useDelayState;
|
|
var _util = require("@rc-component/util");
|
|
var _raf = _interopRequireDefault(require("@rc-component/util/lib/raf"));
|
|
var _react = _interopRequireDefault(require("react"));
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
|
|
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."); }
|
|
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$/.test(n)) return _arrayLikeToArray(o, minLen); }
|
|
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
|
|
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
|
|
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
|
|
/**
|
|
* Will be `true` immediately for next effect.
|
|
* But will be `false` for a delay of effect.
|
|
*/
|
|
function useDelayState(value, defaultValue, onChange) {
|
|
var _useControlledState = (0, _util.useControlledState)(defaultValue, value),
|
|
_useControlledState2 = _slicedToArray(_useControlledState, 2),
|
|
state = _useControlledState2[0],
|
|
setState = _useControlledState2[1];
|
|
|
|
// Need force update to ensure React re-render
|
|
var _React$useState = _react.default.useState({}),
|
|
_React$useState2 = _slicedToArray(_React$useState, 2),
|
|
forceUpdate = _React$useState2[1];
|
|
var triggerUpdate = (0, _util.useEvent)(function (nextState) {
|
|
setState(nextState);
|
|
forceUpdate({});
|
|
});
|
|
var nextValueRef = _react.default.useRef(value);
|
|
|
|
// ============================= Update =============================
|
|
var rafRef = _react.default.useRef();
|
|
var cancelRaf = function cancelRaf() {
|
|
_raf.default.cancel(rafRef.current);
|
|
};
|
|
var doUpdate = (0, _util.useEvent)(function () {
|
|
triggerUpdate(nextValueRef.current);
|
|
if (onChange && state !== nextValueRef.current) {
|
|
onChange(nextValueRef.current);
|
|
}
|
|
});
|
|
var updateValue = (0, _util.useEvent)(function (next, immediately) {
|
|
cancelRaf();
|
|
nextValueRef.current = next;
|
|
if (next || immediately) {
|
|
doUpdate();
|
|
} else {
|
|
rafRef.current = (0, _raf.default)(doUpdate);
|
|
}
|
|
});
|
|
_react.default.useEffect(function () {
|
|
return cancelRaf;
|
|
}, []);
|
|
return [state, updateValue];
|
|
} |