acud/lib/select/src/hooks/useLock.js

acg react 组件库

"use strict";

var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = useLock;
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); }
/**
 * Locker return cached mark.
 * If set to `true`, will return `true` in a short time even if set `false`.
 * If set to `false` and then set to `true`, will change to `true`.
 * And after time duration, it will back to `null` automatically.
 */
function useLock() {
  var duration = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 250;
  var lockRef = React.useRef(null);
  var timeoutRef = React.useRef(null);
  // Clean up
  React.useEffect(function () {
    return function () {
      window.clearTimeout(timeoutRef.current);
    };
  }, []);
  function doLock(locked) {
    if (locked || lockRef.current === null) {
      lockRef.current = locked;
    }
    window.clearTimeout(timeoutRef.current);
    timeoutRef.current = window.setTimeout(function () {
      lockRef.current = null;
    }, duration);
  }
  return [function () {
    return lockRef.current;
  }, doLock];
}