Prepares variables for image formatter templates.

Default template: image-formatter.html.twig.

Parameters

array $variables: An associative array containing:

• item: An ImageItem object.
• item_attributes: An optional associative array of html attributes to be placed in the img tag.
• image_style: An optional image style.
• url: An optional \Drupal\Core\Url object.

File

core/modules/image/src/Hook/ImageThemeHooks.php, line 153

Class

ImageThemeHooks

Theme hook implementations for image module.

Namespace

Drupal\image\Hook

Code

public function preprocessImageFormatter(array &$variables) : void {
  if ($variables['image_style']) {
    $variables['image'] = [
      '#theme' => 'image_style',
      '#style_name' => $variables['image_style'],
    ];
  }
  else {
    $variables['image'] = [
      '#theme' => 'image',
    ];
  }
  $variables['image']['#attributes'] = $variables['item_attributes'];
  $item = $variables['item'];
  // Do not output an empty 'title' attribute.
  if (!is_null($item->title) && mb_strlen($item->title) != 0) {
    $variables['image']['#title'] = $item->title;
  }
  if (($entity = $item->entity) && empty($item->uri)) {
    $variables['image']['#uri'] = $entity->getFileUri();
  }
  else {
    $variables['image']['#uri'] = $item->uri;
  }
  foreach ([
    'width',
    'height',
    'alt',
  ] as $key) {
    $variables['image']["#{$key}"] = $item->{$key};
  }
}

---