text: /*
   * Created on Tue Nov 10 2020
   *
   * The MIT License (MIT)
   * Copyright (c) 2020 André Antakli, Xueting Li (German Research Center for Artificial Intelligence, DFKI).
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
   * and associated documentation files (the "Software"), to deal in the Software without restriction,
   * including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
   * subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all copies or substantial
   * portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
   * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  import Ember from 'ember';
  
  const { Component } = Ember;
  
  export default Component.extend({
    init() {
      this._super(...arguments);
      this.set('checkedItemsSet', new Set());
    },
    actions: {
      onCheck(item) {
        let checkedItemsSet = this.get('checkedItemsSet');
        if (checkedItemsSet.has(item)) {
          checkedItemsSet.delete(item);
        } else {
          checkedItemsSet.add(item);
        }
        this.get('onCheck')(Array.from(checkedItemsSet));
      }
    }
  });
  