osr-discourse-src/app/assets/javascripts/discourse/components/edit-category-topic-template.js.es6

import { buildCategoryPanel } from 'discourse/components/edit-category-panel';

export default buildCategoryPanel('topic-template', {
  _activeTabChanged: function() {
    if (this.get('activeTab')) {
      const self = this;
      Ember.run.schedule('afterRender', function() {
        self.$('.wmd-input').focus();
      });
    }
  }.observes('activeTab')
});