discourse/app/assets/javascripts/admin/components/save-controls.js.es6

import computed from 'ember-addons/ember-computed-decorators';

export default Ember.Component.extend({
  classNames: ['controls'],

  buttonDisabled: Ember.computed.or('model.isSaving', 'saveDisabled'),

  @computed('model.isSaving')
  savingText(saving) {
    return saving ? 'saving' : 'save';
  },

  actions: {
    saveChanges() {
      this.sendAction();
    }
  }
});