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 _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

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.
 */


export default function (ToMix) {
  var CreateComponent =
  /*#__PURE__*/
  function (_ToMix) {
    _inherits(CreateComponent, _ToMix);
    /**
     * The component instances managed by this component.
     * Releasing this component also releases the components in `this.children`.
     * @type {Component[]}
     */

    /**
     * Mix-in class to manage lifecycle of component.
     * The constructor sets up this component's effective options,
     * and registers this component't instance associated to an element.
     * @implements Handle
     * @param {HTMLElement} element The element working as this component.
     * @param {object} [options] The component options.
     */


    function CreateComponent(element) {
      var _this;

      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      _classCallCheck(this, CreateComponent);

      _this = _possibleConstructorReturn(this, _getPrototypeOf(CreateComponent).call(this, element, options));
      _this.children = [];

      if (!element || element.nodeType !== Node.ELEMENT_NODE) {
        throw new TypeError('DOM element should be given to initialize this widget.');
      }
      /**
       * The element the component is of.
       * @type {Element}
       */


      _this.element = element;
      /**
       * The component options.
       * @type {object}
       */

      _this.options = Object.assign(Object.create(_this.constructor.options), options);

      _this.constructor.components.set(_this.element, _assertThisInitialized(_this));

      return _this;
    }
    /**
     * Instantiates this component of the given element.
     * @param {HTMLElement} element The element.
     */


    _createClass(CreateComponent, [{
      key: "release",

      /**
       * Releases this component's instance from the associated element.
       */
      value: function release() {
        for (var child = this.children.pop(); child; child = this.children.pop()) {
          child.release();
        }

        this.constructor.components.delete(this.element);
        return null;
      }
    }], [{
      key: "create",
      value: function create(element, options) {
        return this.components.get(element) || new this(element, options);
      }
    }]);

    return CreateComponent;
  }(ToMix);

  return CreateComponent;
}