import Ember from 'ember';
              import Column from 'ember-light-table/components/columns/base';
              import layout from 'ember-data-table-light/templates/components/light-table/columns/checkbox';
              
              const { computed } = Ember;
              
              /**
               * @class CheckboxColumn
               * @extends Column
               */
              export default Column.extend({
                layout,
              
                iconChecked: 'fa fa-check-square-o',
                iconUnchecked: 'fa fa-square-o',
              
                notSelectedRows: computed.filterBy('table.rows', 'selected', false),
                allSelected: computed.empty('notSelectedRows'),
              
                icon: computed('allSelected', function() {
                  return this.get('allSelected') ? this.get('iconChecked') : this.get('iconUnchecked');
                }),
              
                click() {
                  this.get('table.rows').setEach('selected', !this.get('allSelected'));
                }
              });