/**
  * @see \str\pathToType() pathToType
  */
 public static function pathToType($string_)
 {
     return \str\pathToType($string_);
 }
 /**
  * @return \Components\Ui_Panel[]
  */
 protected function dispatchImpl()
 {
     $isHtml = $this->response->getMimetype()->isHtml();
     $params = $this->request->getParams();
     $path = $params->get('ui-panel-path');
     if ($scope = $params->get('ui-panel-scope')) {
         session_name($scope);
     }
     if (!(self::$transactionId = $params->get('ui-panel-tx'))) {
         self::$transactionId = \math\random_sha1_weak();
     }
     self::$submittedPanelId = $params->get('ui-panel-submitted');
     // static callback
     if ($params->containsKey('ui-panel-callback')) {
         $callback = $params->get('ui-panel-callback');
         if (false !== ($pos = strpos($callback, '::'))) {
             $type = substr($callback, 0, $pos);
             $method = substr($callback, $pos + 2);
             // TODO [CSH] Runtime_Classloader::lookupClass(class/name).
             if (class_exists($type) && method_exists($type, $method)) {
                 return $type::$method($this->request, $this->response);
             }
         }
     }
     if (null === $path) {
         throw new Http_Exception('ui/scriptlet', null, Http_Exception::NOT_FOUND);
     }
     // embedded mode
     $path = json_decode($path);
     $i = 0;
     $panels = [];
     foreach ($path as $name => $type) {
         $type = \str\pathToType($type);
         if (0 === $i) {
             $this->panel = $panels[$i] = new $type($name);
             $this->panel->scriptlet = $this;
         } else {
             if (isset($panels[$i - 1]->{$name})) {
                 $panels[$i] = $panels[$i - 1]->{$name};
             } else {
                 $panels[$i - 1]->add($panels[$i] = new $type($name));
             }
         }
         $i++;
     }
     $panels = [];
     foreach ($this->panel->redrawPanels() as $panel) {
         $panels[$panel->id()] = $panel->fetch();
     }
     return json_encode(['p' => $panels]);
 }