acud/lib/tabs/src/hooks/useSyncState.js

acg react 组件库

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = useSyncState;
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var React = _interopRequireWildcard(require("react"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, "default": e }; if (null === e || "object" != _typeof(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
function useSyncState(defaultState, onChange) {
  var stateRef = React.useRef(defaultState);
  var _React$useState = React.useState({}),
    _React$useState2 = (0, _slicedToArray2["default"])(_React$useState, 2),
    forceUpdate = _React$useState2[1];
  function setState(updater) {
    var newValue = typeof updater === 'function' ? updater(stateRef.current) : updater;
    if (newValue !== stateRef.current) {
      onChange(newValue, stateRef.current);
    }
    stateRef.current = newValue;
    forceUpdate({});
  }
  return [stateRef.current, setState];
}