Ember Refresh Model Hook on Tab Focus

mixin.js

import Mixin from '@ember/object/mixin';
import { inject as service } from '@ember/service';
import { task, timeout } from 'ember-concurrency';

export default Mixin.create({
  fastboot: service(),
  unifiedEventHandler: service(), // ember-singularity

  activate(...args) {
    this._super(...args);

    if (!this.fastboot.isFastBoot) {
      this.performRefreshModelHook = this.performRefreshModelHook.bind(this); // because we need a function ref to unregister with
      this.unifiedEventHandler.register('window', 'focus', this.performRefreshModelHook);
    }
  },

  deactivate(...args) {
    if (!this.fastboot.isFastBoot) {
      this.unifiedEventHandler.unregister('window', 'focus', this.performRefreshModelHook);
    }

    this._super(...args);
  },

  performRefreshModelHook() {
    this.refreshModelHook.perform();
  },

  refreshModelHook: task(function* () {
    yield timeout(2000);
    const model = yield this.model(this.paramsFor(this.routeName));

    this.setupController(this.controllerFor(this.routeName), model);
  }).restartable(),
});