discourse-custom-wizard/assets/javascripts/wizard/components/wizard-similar-topics.js.es6

import Component from "@ember/component";
import { bind } from "@ember/runloop";
import { observes } from "discourse-common/utils/decorators";

export default Component.extend({ 
  classNames: ['wizard-similar-topics'],
  showTopics: true,
  
  didInsertElement() {
    $(document).on("click", bind(this, this.documentClick));
  },

  willDestroyElement() {
    $(document).off("click", bind(this, this.documentClick));
  },

  documentClick(e) {
    if (this._state == "destroying") return;
    let $target = $(e.target);

    if (!$target.hasClass('show-topics')) {
      this.set('showTopics', false);
    }
  },
  
  @observes('topics')
  toggleShowWhenTopicsChange() {
    this.set('showTopics', true);
  },
  
  actions: {
    toggleShowTopics() {
      this.set('showTopics', true);
    }
  }
})