aleph1.co.uk Git - yaffs-website/blob - web/core/lib/Drupal/Core/Plugin/Discovery/ContainerDerivativeDiscoveryDecorator.php

   1 <?php
   2
   3 namespace Drupal\Core\Plugin\Discovery;
   4
   5 use Drupal\Component\Plugin\Discovery\DerivativeDiscoveryDecorator;
   6
   7 /**
   8  * Injects dependencies into derivers if they use ContainerDeriverInterface.
   9  *
  10  * @see \Drupal\Core\Plugin\Discovery\ContainerDeriverInterface
  11  */
  12 class ContainerDerivativeDiscoveryDecorator extends DerivativeDiscoveryDecorator {
  13
  14   /**
  15    * {@inheritdoc}
  16    */
  17   protected function getDeriver($base_plugin_id, $base_definition) {
  18     if (!isset($this->derivers[$base_plugin_id])) {
  19       $this->derivers[$base_plugin_id] = FALSE;
  20       $class = $this->getDeriverClass($base_definition);
  21       if ($class) {
  22         // If the deriver provides a factory method, pass the container to it.
  23         if (is_subclass_of($class, '\Drupal\Core\Plugin\Discovery\ContainerDeriverInterface')) {
  24           /** @var \Drupal\Core\Plugin\Discovery\ContainerDeriverInterface $class */
  25           $this->derivers[$base_plugin_id] = $class::create(\Drupal::getContainer(), $base_plugin_id);
  26         }
  27         else {
  28           $this->derivers[$base_plugin_id] = new $class($base_plugin_id);
  29         }
  30       }
  31     }
  32     return $this->derivers[$base_plugin_id] ?: NULL;
  33   }
  34
  35 }