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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\ImageToolkit\ImageToolkitOperationManager. | |
| */ | |
| namespace Drupal\Core\ImageToolkit; | |
| use Drupal\Core\Cache\CacheBackendInterface; | |
| use Drupal\Core\Extension\ModuleHandlerInterface; | |
| use Drupal\Core\Plugin\DefaultPluginManager; | |
| use Drupal\Component\Plugin\Exception\PluginNotFoundException; | |
| use Drupal\Component\Plugin\Factory\DefaultFactory; | |
| use Drupal\Component\Utility\SafeMarkup; | |
| use Psr\Log\LoggerInterface; | |
| /** | |
| * Manages toolkit operation plugins. | |
| * | |
| * @see \Drupal\Core\ImageToolkit\Annotation\ImageToolkitOperation | |
| * @see \Drupal\Core\ImageToolkit\ImageToolkitOperationBase | |
| * @see \Drupal\Core\ImageToolkit\ImageToolkitOperationInterface | |
| * @see plugin_api | |
| */ | |
| class ImageToolkitOperationManager extends DefaultPluginManager implements ImageToolkitOperationManagerInterface { | |
| /** | |
| * A logger instance. | |
| * | |
| * @var \Psr\Log\LoggerInterface | |
| */ | |
| protected $logger; | |
| /** | |
| * Constructs the ImageToolkitOperationManager object. | |
| * | |
| * @param \Traversable $namespaces | |
| * An object that implements \Traversable which contains the root paths | |
| * keyed by the corresponding namespace to look for plugin implementations. | |
| * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend | |
| * Cache backend instance to use. | |
| * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler | |
| * The module handler to invoke the alter hook with. | |
| * @param \Psr\Log\LoggerInterface $logger | |
| * A logger instance. | |
| */ | |
| public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, LoggerInterface $logger) { | |
| parent::__construct('Plugin/ImageToolkit/Operation', $namespaces, $module_handler, 'Drupal\Core\ImageToolkit\ImageToolkitOperationInterface', 'Drupal\Core\ImageToolkit\Annotation\ImageToolkitOperation'); | |
| $this->alterInfo('image_toolkit_operation'); | |
| $this->setCacheBackend($cache_backend, 'image_toolkit_operation_plugins'); | |
| $this->logger = $logger; | |
| } | |
| /** | |
| * Returns the plugin ID for a given toolkit and operation. | |
| * | |
| * @param string $toolkit_id | |
| * The toolkit plugin ID. | |
| * @param string $operation | |
| * The operation (e.g. "crop"). | |
| * | |
| * @return string | |
| * The plugin ID. | |
| * | |
| * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException | |
| * When no plugin is available. | |
| */ | |
| protected function getToolkitOperationPluginId($toolkit_id, $operation) { | |
| $definitions = $this->getDefinitions(); | |
| $definitions = array_filter($definitions, | |
| function ($definition) use ($toolkit_id, $operation) { | |
| return $definition['toolkit'] == $toolkit_id && $definition['operation'] == $operation; | |
| } | |
| ); | |
| if (!$definitions) { | |
| $message = SafeMarkup::format("No image operation plugin for '@toolkit' toolkit and '@operation' operation.", array('@toolkit' => $toolkit_id, '@operation' => $operation)); | |
| throw new PluginNotFoundException($toolkit_id . '.' . $operation, $message); | |
| } | |
| else { | |
| // Pickup the first plugin found. | |
| // @todo In https://www.drupal.org/node/2110591 we'll return here the UI | |
| // selected plugin or the first found if missed. | |
| $definition = reset($definitions); | |
| return $definition['id']; | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function createInstance($plugin_id, array $configuration = array(), ImageToolkitInterface $toolkit = NULL) { | |
| $plugin_definition = $this->getDefinition($plugin_id); | |
| $plugin_class = DefaultFactory::getPluginClass($plugin_id, $plugin_definition); | |
| return new $plugin_class($configuration, $plugin_id, $plugin_definition, $toolkit, $this->logger); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getToolkitOperation(ImageToolkitInterface $toolkit, $operation) { | |
| $plugin_id = $this->getToolkitOperationPluginId($toolkit->getPluginId(), $operation); | |
| return $this->createInstance($plugin_id, array(), $toolkit); | |
| } | |
| } |