www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheMerge.php

   1 <?php
   2
   3 namespace Drupal\filter_test\Plugin\Filter;
   4
   5 use Drupal\filter\FilterProcessResult;
   6 use Drupal\filter\Plugin\FilterBase;
   7 use Drupal\Core\Cache\CacheableMetadata;
   8
   9 /**
  10  * Provides a test filter to merge with CacheableMetadata.
  11  *
  12  * @Filter(
  13  *   id = "filter_test_cache_merge",
  14  *   title = @Translation("Testing filter"),
  15  *   description = @Translation("Does not change content; merges cacheable metadata."),
  16  *   type = Drupal\filter\Plugin\FilterInterface::TYPE_TRANSFORM_REVERSIBLE
  17  * )
  18  */
  19 class FilterTestCacheMerge extends FilterBase {
  20
  21   /**
  22    * {@inheritdoc}
  23    */
  24   public function process($text, $langcode) {
  25     $result = new FilterProcessResult($text);
  26
  27     $metadata = new CacheableMetadata();
  28     $metadata->addCacheTags(['merge:tag']);
  29     $metadata->addCacheContexts(['user.permissions']);
  30     $result = $result->merge($metadata);
  31
  32     return $result;
  33   }
  34
  35 }