/**
  * Executes an action on layout object
  *
  * @param LayoutInterface $layout
  * @param ProcessorInterface $processor
  * @return $this
  */
 public function execute(LayoutInterface $layout, ProcessorInterface $processor)
 {
     if (!empty($this->options['ifconfig']) && !Mage::getStoreConfigFlag($this->options['ifconfig'])) {
         return $this;
     }
     $callback = $this->callback;
     $block = $layout->findBlockById($this->getBlockId());
     if ($block !== false) {
         $callback($block);
     }
     return $this;
 }