3 namespace Drupal\Core\ImageToolkit;
5 use Drupal\Core\Cache\CacheBackendInterface;
6 use Drupal\Core\Extension\ModuleHandlerInterface;
7 use Drupal\Core\Plugin\DefaultPluginManager;
8 use Drupal\Component\Plugin\Exception\PluginNotFoundException;
9 use Drupal\Component\Plugin\Factory\DefaultFactory;
10 use Drupal\Component\Utility\SafeMarkup;
11 use Psr\Log\LoggerInterface;
14 * Manages toolkit operation plugins.
16 * @see \Drupal\Core\ImageToolkit\Annotation\ImageToolkitOperation
17 * @see \Drupal\Core\ImageToolkit\ImageToolkitOperationBase
18 * @see \Drupal\Core\ImageToolkit\ImageToolkitOperationInterface
21 class ImageToolkitOperationManager extends DefaultPluginManager implements ImageToolkitOperationManagerInterface {
26 * @var \Psr\Log\LoggerInterface
31 * The image toolkit manager.
33 * @var \Drupal\Core\ImageToolkit\ImageToolkitManager
35 protected $toolkitManager;
38 * Constructs the ImageToolkitOperationManager object.
40 * @param \Traversable $namespaces
41 * An object that implements \Traversable which contains the root paths
42 * keyed by the corresponding namespace to look for plugin implementations.
43 * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
44 * Cache backend instance to use.
45 * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
46 * The module handler to invoke the alter hook with.
47 * @param \Psr\Log\LoggerInterface $logger
49 * @param \Drupal\Core\ImageToolkit\ImageToolkitManager $toolkit_manager
50 * The image toolkit manager.
52 public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, LoggerInterface $logger, ImageToolkitManager $toolkit_manager) {
53 parent::__construct('Plugin/ImageToolkit/Operation', $namespaces, $module_handler, 'Drupal\Core\ImageToolkit\ImageToolkitOperationInterface', 'Drupal\Core\ImageToolkit\Annotation\ImageToolkitOperation');
55 $this->alterInfo('image_toolkit_operation');
56 $this->setCacheBackend($cache_backend, 'image_toolkit_operation_plugins');
57 $this->logger = $logger;
58 $this->toolkitManager = $toolkit_manager;
62 * Returns the plugin ID for a given toolkit and operation.
64 * @param \Drupal\Core\ImageToolkit\ImageToolkitInterface $toolkit
65 * The toolkit instance.
66 * @param string $operation
67 * The operation (e.g. "crop").
72 * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
73 * When no plugin is available.
75 protected function getToolkitOperationPluginId(ImageToolkitInterface $toolkit, $operation) {
76 $toolkit_id = $toolkit->getPluginId();
77 $definitions = $this->getDefinitions();
79 $definitions = array_filter($definitions,
80 function ($definition) use ($toolkit_id, $operation) {
81 return $definition['toolkit'] == $toolkit_id && $definition['operation'] == $operation;
86 // If this image toolkit plugin is a derivative and returns no operation,
87 // try once again with its base plugin.
88 $base_toolkit_id = $toolkit->getBaseId();
89 if (($toolkit_id != $base_toolkit_id) && !empty($base_toolkit_id)) {
90 $base_toolkit = $this->toolkitManager->createInstance($base_toolkit_id);
91 return $this->getToolkitOperationPluginId($base_toolkit, $operation);
94 $message = SafeMarkup::format("No image operation plugin for '@toolkit' toolkit and '@operation' operation.", ['@toolkit' => $toolkit_id, '@operation' => $operation]);
95 throw new PluginNotFoundException($toolkit_id . '.' . $operation, $message);
98 // Pickup the first plugin found.
99 // @todo In https://www.drupal.org/node/2110591 we'll return here the UI
100 // selected plugin or the first found if missed.
101 $definition = reset($definitions);
102 return $definition['id'];
109 public function createInstance($plugin_id, array $configuration = [], ImageToolkitInterface $toolkit = NULL) {
110 $plugin_definition = $this->getDefinition($plugin_id);
111 $plugin_class = DefaultFactory::getPluginClass($plugin_id, $plugin_definition);
112 return new $plugin_class($configuration, $plugin_id, $plugin_definition, $toolkit, $this->logger);
118 public function getToolkitOperation(ImageToolkitInterface $toolkit, $operation) {
119 $plugin_id = $this->getToolkitOperationPluginId($toolkit, $operation);
120 return $this->createInstance($plugin_id, [], $toolkit);