protected function ImageFieldFormatter::isValidImage in Entity Embed 8

Checks if the image is valid.

Return value

\Drupal\Core\Access\AccessResult Returns the access result.

1 call to ImageFieldFormatter::isValidImage()

ImageFieldFormatter::access in src/Plugin/entity_embed/EntityEmbedDisplay/ImageFieldFormatter.php

Indicates whether this Entity Embed display can be used.

File

src/Plugin/entity_embed/EntityEmbedDisplay/ImageFieldFormatter.php, line 115

Class

ImageFieldFormatter

Entity Embed Display reusing image field formatters.

Namespace

Drupal\entity_embed\Plugin\entity_embed\EntityEmbedDisplay

Code

protected function isValidImage() {

  // If entity type is not file we have to return early to prevent fatal in
  // the condition above. Access should already be forbidden at this point,
  // which means this won't have any effect.
  // @see EntityEmbedDisplayBase::access()
  if ($this
    ->getEntityTypeFromContext() != 'file') {
    return AccessResult::forbidden();
  }
  $access = AccessResult::allowed();

  // @todo needs cacheability metadata for getEntityFromContext.
  // @see \Drupal\entity_embed\EntityEmbedDisplay\EntityEmbedDisplayBase::getEntityFromContext()

  /** @var \Drupal\file\FileInterface $entity */
  if ($entity = $this
    ->getEntityFromContext()) {

    // Loading large files is slow, make sure it is an image mime type before
    // doing that.
    list($type, ) = explode('/', $entity
      ->getMimeType(), 2);
    $is_valid_image = FALSE;
    if ($type == 'image') {
      $is_valid_image = $this->imageFactory
        ->get($entity
        ->getFileUri())
        ->isValid();
      if (!$is_valid_image) {
        $this->messenger
          ->addMessage($this
          ->t('The selected image "@image" is invalid.', [
          '@image' => $entity
            ->label(),
        ]), 'error');
      }
    }
    $access = AccessResult::allowedIf($type == 'image' && $is_valid_image)
      ->addCacheableDependency($entity);
  }
  return $access;
}