public function HorizontalMenu::getCacheContexts in Responsive and off-canvas menu 8.2

Same name and namespace in other branches

1. 8.3 src/Plugin/Block/HorizontalMenu.php \Drupal\responsive_menu\Plugin\Block\HorizontalMenu::getCacheContexts()
2. 4.4.x src/Plugin/Block/HorizontalMenu.php \Drupal\responsive_menu\Plugin\Block\HorizontalMenu::getCacheContexts()
3. 4.0.x src/Plugin/Block/HorizontalMenu.php \Drupal\responsive_menu\Plugin\Block\HorizontalMenu::getCacheContexts()
4. 4.1.x src/Plugin/Block/HorizontalMenu.php \Drupal\responsive_menu\Plugin\Block\HorizontalMenu::getCacheContexts()
5. 4.3.x src/Plugin/Block/HorizontalMenu.php \Drupal\responsive_menu\Plugin\Block\HorizontalMenu::getCacheContexts()

The cache contexts associated with this object.

These identify a specific variation/representation of the object.

Cache contexts are tokens: placeholders that are converted to cache keys by the @cache_contexts_manager service. The replacement value depends on the request context (the current URL, language, and so on). They're converted before storing an object in cache.

Return value

string[] An array of cache context tokens, used to generate a cache ID.

Overrides ContextAwarePluginBase::getCacheContexts

See also

\Drupal\Core\Cache\Context\CacheContextsManager::convertTokensToKeys()

File

src/Plugin/Block/HorizontalMenu.php, line 139

Class

HorizontalMenu

Provides the HorizontalMenu block.

Namespace

Drupal\responsive_menu\Plugin\Block

Code

public function getCacheContexts() {

  // ::build() uses MenuLinkTreeInterface::getCurrentRouteMenuTreeParameters()
  // to generate menu tree parameters, and those take the active menu trail
  // into account. Therefore, we must vary the rendered menu by the active
  // trail of the rendered menu.
  // Additional cache contexts, e.g. those that determine link text or
  // accessibility of a menu, will be bubbled automatically.
  $menu_name = \Drupal::config('responsive_menu.settings')
    ->get('horizontal_menu');

  // Allow other modules to modify the menu name.
  \Drupal::ModuleHandler()
    ->alter('responsive_menu_horizontal_menu_name', $menu_name);
  return Cache::mergeContexts(parent::getCacheContexts(), [
    'route.menu_active_trails:' . $menu_name,
  ]);
}