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<?php |
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namespace Drupal\graphql_core\Plugin\GraphQL\Fields\Entity\Fields\Image; |
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use Drupal\Core\DependencyInjection\DependencySerializationTrait; |
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use Drupal\Core\Image\ImageFactory; |
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use Drupal\Core\Plugin\ContainerFactoryPluginInterface; |
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use Drupal\graphql\GraphQL\Cache\CacheableValue; |
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use Drupal\graphql\Plugin\GraphQL\Fields\FieldPluginBase; |
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use Drupal\image\Plugin\Field\FieldType\ImageItem; |
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use Symfony\Component\DependencyInjection\ContainerInterface; |
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use Youshido\GraphQL\Execution\ResolveInfo; |
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use Drupal\image\Entity\ImageStyle; |
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/** |
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* Retrieve the image field derivative (image style). |
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* |
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* @GraphQLField( |
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* id = "image_derivative", |
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* secure = true, |
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* name = "derivative", |
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* type = "ImageResource", |
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* arguments = { |
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* "style" = "ImageStyleId!" |
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* }, |
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* field_types = {"image"}, |
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* provider = "image", |
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* deriver = "Drupal\graphql_core\Plugin\Deriver\Fields\EntityFieldPropertyDeriver" |
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* ) |
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*/ |
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class ImageDerivative extends FieldPluginBase implements ContainerFactoryPluginInterface { |
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use DependencySerializationTrait; |
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/** |
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* The image factory. |
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* |
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* @var \Drupal\Core\Image\ImageFactory |
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*/ |
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protected $imageFactory; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct(array $configuration, $pluginId, $pluginDefinition, ImageFactory $imageFactory) { |
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parent::__construct($configuration, $pluginId, $pluginDefinition); |
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$this->imageFactory = $imageFactory; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function create(ContainerInterface $container, array $configuration, $pluginId, $pluginDefinition) { |
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return new static($configuration, $pluginId, $pluginDefinition, $container->get('image.factory')); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function resolveValues($value, array $args, ResolveInfo $info) { |
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if ($value instanceof ImageItem && $value->entity->access('view') && $style = ImageStyle::load($args['style'])) { |
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$file = $value->entity; |
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// Determine the dimensions of the styled image. |
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$dimensions = [ |
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'width' => $value->width, |
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'height' => $value->height, |
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]; |
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$style->transformDimensions($dimensions, $file->getFileUri()); |
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yield new CacheableValue([ |
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'url' => $style->buildUrl($file->getFileUri()), |
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'width' => $dimensions['width'], |
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'height' => $dimensions['height'], |
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], [$style]); |
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} |
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} |
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} |
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drupal-graphql /
graphql
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