text: function _typeof(obj) {
    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function _typeof(obj) {
        return typeof obj;
      };
    } else {
      _typeof = function _typeof(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }
  
    return _typeof(obj);
  }
  
  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }
  
  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }
  
  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }
  
  function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
      return call;
    }
  
    return _assertThisInitialized(self);
  }
  
  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
  
    return self;
  }
  
  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }
  
  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }
  
    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }
  
  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };
  
    return _setPrototypeOf(o, p);
  }
  /**
   * Copyright IBM Corp. 2016, 2018
   *
   * This source code is licensed under the Apache-2.0 license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  
  import eventMatches from '../misc/event-matches';
  import on from '../misc/on';
  export default function (ToMix) {
    /**
     * Mix-in class to instantiate components upon events.
     * @class InitComponentByEvent
     */
    var InitComponentByEvent =
    /*#__PURE__*/
    function (_ToMix) {
      _inherits(InitComponentByEvent, _ToMix);
  
      function InitComponentByEvent() {
        _classCallCheck(this, InitComponentByEvent);
  
        return _possibleConstructorReturn(this, _getPrototypeOf(InitComponentByEvent).apply(this, arguments));
      }
  
      _createClass(InitComponentByEvent, null, [{
        key: "init",
  
        /**
         * `true` suggests that this component is lazily initialized upon an action/event, etc.
         * @type {boolean}
         */
  
        /**
         * Instantiates this component in the given element.
         * If the given element indicates that it's an component of this class, instantiates it.
         * Otherwise, instantiates this component by clicking on this component in the given node.
         * @param {Node} target The DOM node to instantiate this component in. Should be a document or an element.
         * @param {object} [options] The component options.
         * @param {string} [options.selectorInit] The CSS selector to find this component.
         * @returns {Handle} The handle to remove the event listener to handle clicking.
         */
        value: function init() {
          var _this = this;
  
          var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document;
          var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
          var effectiveOptions = Object.assign(Object.create(this.options), options);
  
          if (!target || target.nodeType !== Node.ELEMENT_NODE && target.nodeType !== Node.DOCUMENT_NODE) {
            throw new TypeError('DOM document or DOM element should be given to search for and initialize this widget.');
          }
  
          if (target.nodeType === Node.ELEMENT_NODE && target.matches(effectiveOptions.selectorInit)) {
            this.create(target, options);
          } else {
            // To work around non-bubbling `focus` event, use `focusin` event instead of it's available, and "capture mode" otherwise
            var hasFocusin = 'onfocusin' in (target.nodeType === Node.ELEMENT_NODE ? target.ownerDocument : target).defaultView;
            var handles = effectiveOptions.initEventNames.map(function (name) {
              var eventName = name === 'focus' && hasFocusin ? 'focusin' : name;
              return on(target, eventName, function (event) {
                var element = eventMatches(event, effectiveOptions.selectorInit); // Instantiated components handles events by themselves
  
                if (element && !_this.components.has(element)) {
                  var component = _this.create(element, options);
  
                  if (typeof component.createdByEvent === 'function') {
                    component.createdByEvent(event);
                  }
                }
              }, name === 'focus' && !hasFocusin);
            });
            return {
              release: function release() {
                for (var handle = handles.pop(); handle; handle = handles.pop()) {
                  handle.release();
                }
              }
            };
          }
  
          return '';
        }
      }]);
  
      InitComponentByEvent.forLazyInit = true;
      return InitComponentByEvent;
    }(ToMix);
  
    return InitComponentByEvent;
  }