useDelayReset.js 2.1 KB

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  1. "use strict";
  2. var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
  3. var _typeof = require("@babel/runtime/helpers/typeof");
  4. Object.defineProperty(exports, "__esModule", {
  5. value: true
  6. });
  7. exports.default = useDelayReset;
  8. var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
  9. var React = _interopRequireWildcard(require("react"));
  10. function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
  11. function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
  12. /**
  13. * Similar with `useLock`, but this hook will always execute last value.
  14. * When set to `true`, it will keep `true` for a short time even if `false` is set.
  15. */
  16. function useDelayReset() {
  17. var timeout = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 10;
  18. var _React$useState = React.useState(false),
  19. _React$useState2 = (0, _slicedToArray2.default)(_React$useState, 2),
  20. bool = _React$useState2[0],
  21. setBool = _React$useState2[1];
  22. var delayRef = React.useRef(null);
  23. var cancelLatest = function cancelLatest() {
  24. window.clearTimeout(delayRef.current);
  25. };
  26. React.useEffect(function () {
  27. return cancelLatest;
  28. }, []);
  29. var delaySetBool = function delaySetBool(value, callback) {
  30. cancelLatest();
  31. delayRef.current = window.setTimeout(function () {
  32. setBool(value);
  33. if (callback) {
  34. callback();
  35. }
  36. }, timeout);
  37. };
  38. return [bool, delaySetBool, cancelLatest];
  39. }