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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\ImageToolkit\ImageToolkitBase. | |
| */ | |
| namespace Drupal\Core\ImageToolkit; | |
| use Drupal\Component\Plugin\Exception\PluginNotFoundException; | |
| use Drupal\Core\Config\ConfigFactoryInterface; | |
| use Drupal\Core\Form\FormStateInterface; | |
| use Drupal\Core\Plugin\PluginBase; | |
| use Psr\Log\LoggerInterface; | |
| /** | |
| * Provides a base class for image toolkit plugins. | |
| * | |
| * @see \Drupal\Core\ImageToolkit\Annotation\ImageToolkit | |
| * @see \Drupal\Core\ImageToolkit\ImageToolkitInterface | |
| * @see \Drupal\Core\ImageToolkit\ImageToolkitManager | |
| * @see plugin_api | |
| */ | |
| abstract class ImageToolkitBase extends PluginBase implements ImageToolkitInterface { | |
| /** | |
| * The config factory. | |
| * | |
| * @var \Drupal\Core\Config\ConfigFactoryInterface | |
| */ | |
| protected $configFactory; | |
| /** | |
| * Path of the image file. | |
| * | |
| * @var string | |
| */ | |
| protected $source = ''; | |
| /** | |
| * The image toolkit operation manager. | |
| * | |
| * @var \Drupal\Core\ImageToolkit\ImageToolkitOperationManagerInterface | |
| */ | |
| protected $operationManager; | |
| /** | |
| * A logger instance. | |
| * | |
| * @var \Psr\Log\LoggerInterface | |
| */ | |
| protected $logger; | |
| /** | |
| * Constructs an ImageToolkitBase object. | |
| * | |
| * @param array $configuration | |
| * A configuration array containing information about the plugin instance. | |
| * @param string $plugin_id | |
| * The plugin_id for the plugin instance. | |
| * @param array $plugin_definition | |
| * The plugin implementation definition. | |
| * @param \Drupal\Core\ImageToolkit\ImageToolkitOperationManagerInterface $operation_manager | |
| * The toolkit operation manager. | |
| * @param \Psr\Log\LoggerInterface $logger | |
| * A logger instance. | |
| * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory | |
| * The config factory. | |
| */ | |
| public function __construct(array $configuration, $plugin_id, array $plugin_definition, ImageToolkitOperationManagerInterface $operation_manager, LoggerInterface $logger, ConfigFactoryInterface $config_factory) { | |
| parent::__construct($configuration, $plugin_id, $plugin_definition); | |
| $this->operationManager = $operation_manager; | |
| $this->logger = $logger; | |
| $this->configFactory = $config_factory; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function validateConfigurationForm(array &$form, FormStateInterface $form_state) { } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function setSource($source) { | |
| // If a previous image has been loaded, there is no way to know if the | |
| // toolkit implementation needs to perform any additional actions like | |
| // freeing memory. Therefore, the source image cannot be changed once set. | |
| if ($this->source) { | |
| throw new \BadMethodCallException(__METHOD__ . '() may only be called once'); | |
| } | |
| $this->source = $source; | |
| return $this; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getSource() { | |
| return $this->source; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getRequirements() { | |
| return array(); | |
| } | |
| /** | |
| * Gets a toolkit operation plugin instance. | |
| * | |
| * @param string $operation | |
| * The toolkit operation requested. | |
| * | |
| * @return \Drupal\Core\ImageToolkit\ImageToolkitOperationInterface | |
| * An instance of the requested toolkit operation plugin. | |
| */ | |
| protected function getToolkitOperation($operation) { | |
| return $this->operationManager->getToolkitOperation($this, $operation); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function apply($operation, array $arguments = array()) { | |
| try { | |
| // Get the plugin to use for the operation and apply the operation. | |
| return $this->getToolkitOperation($operation)->apply($arguments); | |
| } | |
| catch (PluginNotFoundException $e) { | |
| $this->logger->error("The selected image handling toolkit '@toolkit' can not process operation '@operation'.", array('@toolkit' => $this->getPluginId(), '@operation' => $operation)); | |
| return FALSE; | |
| } | |
| catch (\InvalidArgumentException $e) { | |
| $this->logger->warning($e->getMessage(), array()); | |
| return FALSE; | |
| } | |
| } | |
| } |