public function build()
 {
     switch ($this->getState()) {
         case 'showPageToolbar':
             $result = false;
             // вызываем родительский метод построения
             $result = Component::build();
             if ($result instanceof \DOMDocument) {
                 $result->documentElement->appendChild($result->importNode($this->buildJS(), true));
                 $tbs = $this->getToolbar();
                 if (!empty($tbs)) {
                     foreach ($tbs as $toolbar) {
                         $result->documentElement->appendChild($result->importNode($toolbar->build(), true));
                     }
                 }
             }
             break;
         case 'showTransEditor':
             $result = $this->transEditor->build();
             break;
         case 'showUserEditor':
             $result = $this->userEditor->build();
             break;
         case 'showRoleEditor':
             $result = $this->roleEditor->build();
             break;
         case 'showLangEditor':
             $result = $this->langEditor->build();
             break;
         case 'showSiteEditor':
             $result = $this->siteEditor->build();
             break;
         case 'showWidgetEditor':
             $result = $this->widgetEditor->build();
             break;
         default:
             $result = parent::build();
             break;
     }
     return $result;
 }