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<?php
namespace Drupal\linkit\Plugin\Filter;
use Drupal\Component\Utility\Html;
use Drupal\Core\Entity\EntityRepositoryInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\filter\FilterProcessResult;
use Drupal\filter\Plugin\FilterBase;
use Drupal\linkit\SubstitutionManagerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class LinkitFilter extends FilterBase implements ContainerFactoryPluginInterface {
protected $entityRepository;
protected $substitutionManager;
public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityRepositoryInterface $entity_repository, SubstitutionManagerInterface $substitution_manager) {
parent::__construct($configuration, $plugin_id, $plugin_definition);
$this->entityRepository = $entity_repository;
$this->substitutionManager = $substitution_manager;
}
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($configuration, $plugin_id, $plugin_definition, $container
->get('entity.repository'), $container
->get('plugin.manager.linkit.substitution'));
}
public function process($text, $langcode) {
$result = new FilterProcessResult($text);
if (strpos($text, 'data-entity-type') !== FALSE && strpos($text, 'data-entity-uuid') !== FALSE) {
$dom = Html::load($text);
$xpath = new \DOMXPath($dom);
foreach ($xpath
->query('//a[@data-entity-type and @data-entity-uuid]') as $element) {
try {
$entity_type = $element
->getAttribute('data-entity-type');
$uuid = $element
->getAttribute('data-entity-uuid');
if ($entity_type === '' || $uuid === '') {
continue;
}
if (!($substitution_type = $element
->getAttribute('data-entity-substitution'))) {
$substitution_type = $entity_type === 'file' ? 'file' : SubstitutionManagerInterface::DEFAULT_SUBSTITUTION;
}
$entity = $this->entityRepository
->loadEntityByUuid($entity_type, $uuid);
if ($entity) {
$entity = $this->entityRepository
->getTranslationFromContext($entity, $langcode);
$url = $this->substitutionManager
->createInstance($substitution_type)
->getUrl($entity);
$href_url = parse_url($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 . $anchor);
if ($this->settings['title'] && !$element
->getAttribute('title')) {
$access = $entity
->access('view', NULL, TRUE);
if (!$access
->isForbidden()) {
$element
->setAttribute('title', $entity
->label());
}
$result
->addCacheableDependency($access);
}
$result
->addCacheableDependency($url)
->addCacheableDependency($entity);
}
} catch (\Exception $e) {
watchdog_exception('linkit_filter', $e);
}
}
$result
->setProcessedText(Html::serialize($dom));
}
return $result;
}
public function settingsForm(array $form, FormStateInterface $form_state) {
$form['title'] = [
'#type' => 'checkbox',
'#title' => $this
->t('Automatically set the <code>title</code> attribute to that of the (translated) referenced content'),
'#default_value' => $this->settings['title'],
'#attached' => [
'library' => [
'linkit/linkit.filter_html.admin',
],
],
];
return $form;
}
}