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  $entity_title = entity_label($entity_type, $entity);

  switch ($settings['colorbox_caption']) {

      // If the title is empty use alt or the entity title in that order.

      if (!empty($image['title'])) {

        $caption = $image['title'];

        $caption = '';

      }

      break;

    case 'title':

      $caption = $image['title'];

      break;

    case 'alt':

      $caption = $image['alt'];

      break;

    case 'node_title':

      $caption = $entity_title;

      break;

    case 'custom':

      $caption = token_replace($settings['colorbox_caption_custom'], array($entity_type => $entity, 'file' => (object) $item), array('clear' => TRUE));

      break;

    default:

      $caption = '';

  }

    case 'post':

      $gallery_id = 'gallery-' . $entity_id;

      break;

    case 'page':

      $gallery_id = 'gallery-all';

      break;

    case 'field_post':

      $gallery_id = 'gallery-' . $entity_id . '-' . $field['field_name'];

      break;

    case 'field_page':

      $gallery_id = 'gallery-' . $field['field_name'];

      break;

    case 'custom':

      $gallery_id = $settings['colorbox_gallery_custom'];

      break;

    default:

      $gallery_id = '';

  }

      'title' => $variables['title'],

      'class' => $class,

      'data-colorbox-gallery' => $variables['gid'],

    ),

  );

    case 2:

      $variables['gallery_id'] = 'gallery-all';

      break;

    case 3:

      $variables['gallery_id'] = '';

      break;