react-behave/build/cjs/useAsyncCallback/useAsyncCallback.js

A library of behaviors for React applications.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useAsyncCallback = useAsyncCallback;

var _react = _interopRequireDefault(require("react"));

var _asyncState = require("../asyncState");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function useAsyncCallback(callback, deps) {
  var _ref = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
      _ref$initialValue = _ref.initialValue,
      initialValue = _ref$initialValue === void 0 ? null : _ref$initialValue;

  var _React$useReducer = _react["default"].useReducer(_asyncState.asyncStateReducer, initialValue, _asyncState.initializeStateWithValue),
      _React$useReducer2 = _slicedToArray(_React$useReducer, 2),
      state = _React$useReducer2[0],
      dispatch = _React$useReducer2[1];

  var cancelCurrentCallback = _react["default"].useRef(null);

  _react["default"].useEffect(function () {
    return function () {
      if (cancelCurrentCallback.current != null) {
        cancelCurrentCallback.current();
      }
    };
  }, []);

  var run = _react["default"].useCallback(
  /*#__PURE__*/
  function () {
    var _ref2 = _asyncToGenerator(
    /*#__PURE__*/
    regeneratorRuntime.mark(function _callee() {
      var canceled,
          value,
          _args = arguments;
      return regeneratorRuntime.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              if (cancelCurrentCallback.current != null) {
                cancelCurrentCallback.current();
              }

              canceled = false;

              cancelCurrentCallback.current = function () {
                canceled = true;
              };

              dispatch({
                type: _asyncState.START
              });
              _context.prev = 4;
              _context.next = 7;
              return callback.apply(void 0, _args);

            case 7:
              value = _context.sent;

              if (!canceled) {
                dispatch({
                  type: _asyncState.SUCCESS,
                  value: value
                });
              }

              return _context.abrupt("return", value);

            case 12:
              _context.prev = 12;
              _context.t0 = _context["catch"](4);

              if (!canceled) {
                dispatch({
                  type: _asyncState.ERROR,
                  error: _context.t0
                });
              }

            case 15:
            case "end":
              return _context.stop();
          }
        }
      }, _callee, null, [[4, 12]]);
    }));

    return function () {
      return _ref2.apply(this, arguments);
    };
  }(), // We don't add `callback` to deps to let the caller manage it himself.
  // This is _ok_ as the latest `callback` will only be used if `deps`
  // changes, which is the behaviour of `React.useMemo`.
  // eslint-disable-next-line react-hooks/exhaustive-deps
  deps);

  return [run, state];
}