ColorConfigCacheInvalidator.php in Drupal 9
Same filename and directory in other branches
Namespace
Drupal\color\EventSubscriberFile
core/modules/color/src/EventSubscriber/ColorConfigCacheInvalidator.phpView source
<?php
namespace Drupal\color\EventSubscriber;
use Drupal\Core\Cache\CacheTagsInvalidatorInterface;
use Drupal\Core\Config\ConfigCrudEvent;
use Drupal\Core\Config\ConfigEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* A subscriber invalidating cache tags when color config objects are saved.
*/
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;
}
}
Classes
Name | Description |
---|---|
ColorConfigCacheInvalidator | A subscriber invalidating cache tags when color config objects are saved. |