示例#1
0
 /**
  * Get top level NavigationInterface instance
  *
  * @return NavigationInterface|null
  */
 public function getNavigation()
 {
     if ($this->_parentContainer instanceof NavigationInterface) {
         return $this->_parentContainer;
     } elseif ($this->_parentContainer instanceof Item) {
         return $this->_parentContainer->getNavigation();
     }
     return null;
 }