Same name and namespace in other branches

1. 11.x core/modules/filter/src/Plugin/Filter/EntityLinks.php \Drupal\filter\Plugin\Filter\EntityLinks::process()

Performs the filter processing.

Parameters

string $text: The text string to be filtered.

string $langcode: The language code of the text to be filtered.

Return value

\Drupal\filter\FilterProcessResult The filtered text, wrapped in a FilterProcessResult object, and possibly with associated assets, cacheability metadata and placeholders.

Overrides FilterInterface::process

File

core/modules/filter/src/Plugin/Filter/EntityLinks.php, line 46

Class

EntityLinks

Provides the Entity Links filter.

Namespace

Drupal\filter\Plugin\Filter

Code

public function process($text, $langcode) : FilterProcessResult {
  $result = new FilterProcessResult($text);
  if (!str_contains($text, 'data-entity-type') && !str_contains($text, 'data-entity-uuid')) {
    return $result;
  }
  $dom = Html::load($text);
  $xpath = new \DOMXPath($dom);
  // Note: this filter only processes links (<a href>) to Files, not
  // tags with a File as a source (e.g. <img src>).
  // @see \Drupal\editor\Plugin\Filter\EditorFileReference
  foreach ($xpath->query('//a[@data-entity-type and @data-entity-uuid]') as $element) {
    /** @var \DOMElement $element */
    try {
      // Load the appropriate translation of the linked entity.
      $entity_type = $element->getAttribute('data-entity-type');
      $uuid = $element->getAttribute('data-entity-uuid');
      // Skip empty attributes to prevent loading of non-existing
      // content type.
      if ($entity_type === '' || $uuid === '') {
        continue;
      }
      $entity = $this->entityRepository
        ->loadEntityByUuid($entity_type, $uuid);
      if ($entity) {
        // @todo Consider using \Drupal\Core\Entity\EntityRepositoryInterface::getTranslationFromContext() after https://drupal.org/i/3061761 is fixed.
        if ($entity instanceof TranslatableInterface && $entity->hasTranslation($langcode)) {
          $entity = $entity->getTranslation($langcode);
        }
        $url = $this->getUrl($entity);
        // Parse link href as URL, extract query and fragment from it.
        $href_url = parse_url($element->getAttribute('href'));
        $anchor = empty($href_url["fragment"]) ? '' : '#' . $href_url["fragment"];
        $query = empty($href_url["query"]) ? '' : '?' . $href_url["query"];
        $element->setAttribute('href', $url->getGeneratedUrl() . $query . $anchor);
        // The processed text now depends on:
        $result->addCacheableDependency($url)
          ->addCacheableDependency($entity);
      }
      $element->removeAttribute('data-entity-type');
      $element->removeAttribute('data-entity-uuid');
      $element->removeAttribute('data-entity-metadata');
    } catch (\Exception $e) {
      Error::logException('filter', $e);
    }
  }
  $result->setProcessedText(Html::serialize($dom));
  return $result;
}

---