class ColorConfigCacheInvalidator

A subscriber invalidating cache tags when color config objects are saved.

Hierarchy

Expanded class hierarchy of ColorConfigCacheInvalidator

1 string reference to 'ColorConfigCacheInvalidator'
color.services.yml in core/modules/color/color.services.yml
core/modules/color/color.services.yml
1 service uses ColorConfigCacheInvalidator
color.config_cache_invalidator in core/modules/color/color.services.yml
Drupal\color\EventSubscriber\ColorConfigCacheInvalidator

File

View on git.drupalcode.org

core/modules/color/src/EventSubscriber/ColorConfigCacheInvalidator.php, line 13

Namespace

Drupal\color\EventSubscriber
View source 
class ColorConfigCacheInvalidator implements EventSubscriberInterface {
  
  /**
   * The cache tags invalidator.
   *
   * @var \Drupal\Core\Cache\CacheTagsInvalidatorInterface
   */
  protected $cacheTagsInvalidator;
  
  /**
   * Constructs a ColorConfigCacheInvalidator object.
   *
   * @param \Drupal\Core\Cache\CacheTagsInvalidatorInterface $cache_tags_invalidator
   *   The cache tags invalidator.
   */
  public function __construct(CacheTagsInvalidatorInterface $cache_tags_invalidator) {
    $this->cacheTagsInvalidator = $cache_tags_invalidator;
  }
  
  /**
   * Invalidate cache tags when a color theme config object changes.
   *
   * @param \Drupal\Core\Config\ConfigCrudEvent $event
   *   The Event to process.
   */
  public function onChange(ConfigCrudEvent $event) {
    // Changing a theme's color settings causes the theme's asset library
    // containing the color CSS file to be altered to use a different file.
    if (strpos($event->getConfig()
      ->getName(), 'color.theme.') === 0) {
      $this->cacheTagsInvalidator
        ->invalidateTags([
        'library_info',
      ]);
    }
  }
  
  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $events[ConfigEvents::SAVE][] = [
      'onChange',
    ];
    $events[ConfigEvents::DELETE][] = [
      'onChange',
    ];
    return $events;
  }

}

Members

Title Modifiers Object type Summary
ColorConfigCacheInvalidator::$cacheTagsInvalidator protected property The cache tags invalidator.
ColorConfigCacheInvalidator::getSubscribedEvents public static function
ColorConfigCacheInvalidator::onChange public function Invalidate cache tags when a color theme config object changes.
ColorConfigCacheInvalidator::__construct public function Constructs a ColorConfigCacheInvalidator object.

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