abortcontroller-polyfill/dist/abortcontroller.js

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

function _classCallCheck(instance, Constructor) {
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function _defineProperties(target, props) {
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function _createClass(Constructor, protoProps, staticProps) {
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function _inherits(subClass, superClass) {
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function _isNativeReflectConstruct() {
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  try {
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    return true;
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function _assertThisInitialized(self) {
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}

function _possibleConstructorReturn(self, call) {
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}

function _createSuper(Derived) {
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  return function _createSuperInternal() {
    var Super = _getPrototypeOf(Derived),
        result;

    if (hasNativeReflectConstruct) {
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}

function _superPropBase(object, property) {
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function _get(target, property, receiver) {
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var Emitter = /*#__PURE__*/function () {
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    Object.defineProperty(this, 'listeners', {
      value: {},
      writable: true,
      configurable: true
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  _createClass(Emitter, [{
    key: "addEventListener",
    value: function addEventListener(type, callback) {
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      this.listeners[type].push(callback);
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  }, {
    key: "removeEventListener",
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  }, {
    key: "dispatchEvent",
    value: function dispatchEvent(event) {
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      return !event.defaultPrevented;
    }
  }]);

  return Emitter;
}();

var AbortSignal = /*#__PURE__*/function (_Emitter) {
  _inherits(AbortSignal, _Emitter);

  var _super = _createSuper(AbortSignal);

  function AbortSignal() {
    var _this;

    _classCallCheck(this, AbortSignal);

    _this = _super.call(this); // Some versions of babel does not transpile super() correctly for IE <= 10, if the parent
    // constructor has failed to run, then "this.listeners" will still be undefined and then we call
    // the parent constructor directly instead as a workaround. For general details, see babel bug:
    // https://github.com/babel/babel/issues/3041
    // This hack was added as a fix for the issue described here:
    // https://github.com/Financial-Times/polyfill-library/pull/59#issuecomment-477558042

    if (!_this.listeners) {
      Emitter.call(_assertThisInitialized(_this));
    } // Compared to assignment, Object.defineProperty makes properties non-enumerable by default and
    // we want Object.keys(new AbortController().signal) to be [] for compat with the native impl


    Object.defineProperty(_assertThisInitialized(_this), 'aborted', {
      value: false,
      writable: true,
      configurable: true
    });
    Object.defineProperty(_assertThisInitialized(_this), 'onabort', {
      value: null,
      writable: true,
      configurable: true
    });
    return _this;
  }

  _createClass(AbortSignal, [{
    key: "toString",
    value: function toString() {
      return '[object AbortSignal]';
    }
  }, {
    key: "dispatchEvent",
    value: function dispatchEvent(event) {
      if (event.type === 'abort') {
        this.aborted = true;

        if (typeof this.onabort === 'function') {
          this.onabort.call(this, event);
        }
      }

      _get(_getPrototypeOf(AbortSignal.prototype), "dispatchEvent", this).call(this, event);
    }
  }]);

  return AbortSignal;
}(Emitter);
var AbortController = /*#__PURE__*/function () {
  function AbortController() {
    _classCallCheck(this, AbortController);

    // Compared to assignment, Object.defineProperty makes properties non-enumerable by default and
    // we want Object.keys(new AbortController()) to be [] for compat with the native impl
    Object.defineProperty(this, 'signal', {
      value: new AbortSignal(),
      writable: true,
      configurable: true
    });
  }

  _createClass(AbortController, [{
    key: "abort",
    value: function abort() {
      var event;

      try {
        event = new Event('abort');
      } catch (e) {
        if (typeof document !== 'undefined') {
          if (!document.createEvent) {
            // For Internet Explorer 8:
            event = document.createEventObject();
            event.type = 'abort';
          } else {
            // For Internet Explorer 11:
            event = document.createEvent('Event');
            event.initEvent('abort', false, false);
          }
        } else {
          // Fallback where document isn't available:
          event = {
            type: 'abort',
            bubbles: false,
            cancelable: false
          };
        }
      }

      this.signal.dispatchEvent(event);
    }
  }, {
    key: "toString",
    value: function toString() {
      return '[object AbortController]';
    }
  }]);

  return AbortController;
}();

if (typeof Symbol !== 'undefined' && Symbol.toStringTag) {
  // These are necessary to make sure that we get correct output for:
  // Object.prototype.toString.call(new AbortController())
  AbortController.prototype[Symbol.toStringTag] = 'AbortController';
  AbortSignal.prototype[Symbol.toStringTag] = 'AbortSignal';
}

exports.AbortController = AbortController;
exports.AbortSignal = AbortSignal;
exports.default = AbortController;