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class ContextualLinkManager in Drupal 8

Same name and namespace in other branches
  1. 9 core/lib/Drupal/Core/Menu/ContextualLinkManager.php \Drupal\Core\Menu\ContextualLinkManager

Defines a contextual link plugin manager to deal with contextual links.

Hierarchy

Expanded class hierarchy of ContextualLinkManager

See also

\Drupal\Core\Menu\ContextualLinkInterface

1 string reference to 'ContextualLinkManager'
core.services.yml in core/core.services.yml
core/core.services.yml
1 service uses ContextualLinkManager
plugin.manager.menu.contextual_link in core/core.services.yml
Drupal\Core\Menu\ContextualLinkManager

File

core/lib/Drupal/Core/Menu/ContextualLinkManager.php, line 23

Namespace

Drupal\Core\Menu
View source 
class ContextualLinkManager extends DefaultPluginManager implements ContextualLinkManagerInterface {

  /**
   * Provides default values for a contextual link definition.
   *
   * @var array
   */
  protected $defaults = [
    // (required) The name of the route to link to.
    'route_name' => '',
    // (required) The contextual links group.
    'group' => '',
    // The static title text for the link.
    'title' => '',
    // The default link options.
    'options' => [],
    // The weight of the link.
    'weight' => NULL,
    // Default class for contextual link implementations.
    'class' => '\\Drupal\\Core\\Menu\\ContextualLinkDefault',
    // The plugin id. Set by the plugin system based on the top-level YAML key.
    'id' => '',
  ];

  /**
   * A controller resolver object.
   *
   * @var \Symfony\Component\HttpKernel\Controller\ControllerResolverInterface
   */
  protected $controllerResolver;

  /**
   * The access manager.
   *
   * @var \Drupal\Core\Access\AccessManagerInterface
   */
  protected $accessManager;

  /**
   * The current user.
   *
   * @var \Drupal\Core\Session\AccountInterface
   */
  protected $account;

  /**
   * The request stack.
   *
   * @var \Symfony\Component\HttpFoundation\RequestStack
   */
  protected $requestStack;

  /**
   * A static cache of all the contextual link plugins by group name.
   *
   * @var array
   */
  protected $pluginsByGroup;

  /**
   * Constructs a new ContextualLinkManager instance.
   *
   * @param \Drupal\Core\Controller\ControllerResolverInterface $controller_resolver
   *   The controller resolver.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   The cache backend.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param \Drupal\Core\Access\AccessManagerInterface $access_manager
   *   The access manager.
   * @param \Drupal\Core\Session\AccountInterface $account
   *   The current user.
   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
   *   The request stack.
   */
  public function __construct(ControllerResolverInterface $controller_resolver, ModuleHandlerInterface $module_handler, CacheBackendInterface $cache_backend, LanguageManagerInterface $language_manager, AccessManagerInterface $access_manager, AccountInterface $account, RequestStack $request_stack) {
    $this->factory = new ContainerFactory($this, '\\Drupal\\Core\\Menu\\ContextualLinkInterface');
    $this->controllerResolver = $controller_resolver;
    $this->accessManager = $access_manager;
    $this->account = $account;
    $this->moduleHandler = $module_handler;
    $this->requestStack = $request_stack;
    $this
      ->alterInfo('contextual_links_plugins');
    $this
      ->setCacheBackend($cache_backend, 'contextual_links_plugins:' . $language_manager
      ->getCurrentLanguage()
      ->getId(), [
      'contextual_links_plugins',
    ]);
  }

  /**
   * {@inheritdoc}
   */
  protected function getDiscovery() {
    if (!isset($this->discovery)) {
      $yaml_discovery = new YamlDiscovery('links.contextual', $this->moduleHandler
        ->getModuleDirectories());
      $yaml_discovery
        ->addTranslatableProperty('title', 'title_context');
      $this->discovery = new ContainerDerivativeDiscoveryDecorator($yaml_discovery);
    }
    return $this->discovery;
  }

  /**
   * {@inheritdoc}
   */
  public function processDefinition(&$definition, $plugin_id) {
    parent::processDefinition($definition, $plugin_id);

    // If there is no route name, this is a broken definition.
    if (empty($definition['route_name'])) {
      throw new PluginException(sprintf('Contextual link plugin (%s) definition must include "route_name".', $plugin_id));
    }

    // If there is no group name, this is a broken definition.
    if (empty($definition['group'])) {
      throw new PluginException(sprintf('Contextual link plugin (%s) definition must include "group".', $plugin_id));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getContextualLinkPluginsByGroup($group_name) {
    if (isset($this->pluginsByGroup[$group_name])) {
      $contextual_links = $this->pluginsByGroup[$group_name];
    }
    elseif ($cache = $this->cacheBackend
      ->get($this->cacheKey . ':' . $group_name)) {
      $contextual_links = $cache->data;
      $this->pluginsByGroup[$group_name] = $contextual_links;
    }
    else {
      $contextual_links = [];
      foreach ($this
        ->getDefinitions() as $plugin_id => $plugin_definition) {
        if ($plugin_definition['group'] == $group_name) {
          $contextual_links[$plugin_id] = $plugin_definition;
        }
      }
      $this->cacheBackend
        ->set($this->cacheKey . ':' . $group_name, $contextual_links);
      $this->pluginsByGroup[$group_name] = $contextual_links;
    }
    return $contextual_links;
  }

  /**
   * {@inheritdoc}
   */
  public function getContextualLinksArrayByGroup($group_name, array $route_parameters, array $metadata = []) {
    $links = [];
    $request = $this->requestStack
      ->getCurrentRequest();
    foreach ($this
      ->getContextualLinkPluginsByGroup($group_name) as $plugin_id => $plugin_definition) {

      /** @var $plugin \Drupal\Core\Menu\ContextualLinkInterface */
      $plugin = $this
        ->createInstance($plugin_id);
      $route_name = $plugin
        ->getRouteName();

      // Check access.
      if (!$this->accessManager
        ->checkNamedRoute($route_name, $route_parameters, $this->account)) {
        continue;
      }
      $links[$plugin_id] = [
        'route_name' => $route_name,
        'route_parameters' => $route_parameters,
        'title' => $plugin
          ->getTitle($request),
        'weight' => $plugin
          ->getWeight(),
        'localized_options' => $plugin
          ->getOptions(),
        'metadata' => $metadata,
      ];
    }
    $this->moduleHandler
      ->alter('contextual_links', $links, $group_name, $route_parameters);
    return $links;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ContextualLinkManager::$accessManager protected property The access manager.
ContextualLinkManager::$account protected property The current user.
ContextualLinkManager::$controllerResolver protected property A controller resolver object.
ContextualLinkManager::$defaults protected property Provides default values for a contextual link definition. Overrides DefaultPluginManager::$defaults
ContextualLinkManager::$pluginsByGroup protected property A static cache of all the contextual link plugins by group name.
ContextualLinkManager::$requestStack protected property The request stack.
ContextualLinkManager::getContextualLinkPluginsByGroup public function Gets the contextual link plugins by contextual link group. Overrides ContextualLinkManagerInterface::getContextualLinkPluginsByGroup
ContextualLinkManager::getContextualLinksArrayByGroup public function Gets the contextual links prepared as expected by links.html.twig. Overrides ContextualLinkManagerInterface::getContextualLinksArrayByGroup
ContextualLinkManager::getDiscovery protected function Gets the plugin discovery. Overrides DefaultPluginManager::getDiscovery
ContextualLinkManager::processDefinition public function Performs extra processing on plugin definitions. Overrides DefaultPluginManager::processDefinition
ContextualLinkManager::__construct public function Constructs a new ContextualLinkManager instance. Overrides DefaultPluginManager::__construct
DefaultPluginManager::$additionalAnnotationNamespaces protected property Additional namespaces the annotation discovery mechanism should scan for annotation definitions.
DefaultPluginManager::$alterHook protected property Name of the alter hook if one should be invoked.
DefaultPluginManager::$cacheKey protected property The cache key.
DefaultPluginManager::$cacheTags protected property An array of cache tags to use for the cached definitions.
DefaultPluginManager::$moduleHandler protected property The module handler to invoke the alter hook. 1
DefaultPluginManager::$namespaces protected property An object that implements \Traversable which contains the root paths keyed by the corresponding namespace to look for plugin implementations.
DefaultPluginManager::$pluginDefinitionAnnotationName protected property The name of the annotation that contains the plugin definition.
DefaultPluginManager::$pluginInterface protected property The interface each plugin should implement. 1
DefaultPluginManager::$subdir protected property The subdirectory within a namespace to look for plugins, or FALSE if the plugins are in the top level of the namespace.
DefaultPluginManager::alterDefinitions protected function Invokes the hook to alter the definitions if the alter hook is set. 1
DefaultPluginManager::alterInfo protected function Sets the alter hook name.
DefaultPluginManager::clearCachedDefinitions public function Clears static and persistent plugin definition caches. Overrides CachedDiscoveryInterface::clearCachedDefinitions 5
DefaultPluginManager::extractProviderFromDefinition protected function Extracts the provider from a plugin definition.
DefaultPluginManager::findDefinitions protected function Finds plugin definitions. 7
DefaultPluginManager::fixContextAwareDefinitions private function Fix the definitions of context-aware plugins.
DefaultPluginManager::getCacheContexts public function The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts
DefaultPluginManager::getCachedDefinitions protected function Returns the cached plugin definitions of the decorated discovery class.
DefaultPluginManager::getCacheMaxAge public function The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge
DefaultPluginManager::getCacheTags public function The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags
DefaultPluginManager::getDefinitions public function Gets the definition of all plugins for this type. Overrides DiscoveryTrait::getDefinitions 2
DefaultPluginManager::getFactory protected function Gets the plugin factory. Overrides PluginManagerBase::getFactory
DefaultPluginManager::providerExists protected function Determines if the provider of a definition exists. 3
DefaultPluginManager::setCacheBackend public function Initialize the cache backend.
DefaultPluginManager::setCachedDefinitions protected function Sets a cache of plugin definitions for the decorated discovery class.
DefaultPluginManager::useCaches public function Disable the use of caches. Overrides CachedDiscoveryInterface::useCaches 1
DiscoveryCachedTrait::$definitions protected property Cached definitions array. 1
DiscoveryCachedTrait::getDefinition public function Overrides DiscoveryTrait::getDefinition 3
DiscoveryTrait::doGetDefinition protected function Gets a specific plugin definition.
DiscoveryTrait::hasDefinition public function
PluginManagerBase::$discovery protected property The object that discovers plugins managed by this manager.
PluginManagerBase::$factory protected property The object that instantiates plugins managed by this manager.
PluginManagerBase::$mapper protected property The object that returns the preconfigured plugin instance appropriate for a particular runtime condition.
PluginManagerBase::createInstance public function Creates a pre-configured instance of a plugin. Overrides FactoryInterface::createInstance 12
PluginManagerBase::getInstance public function Gets a preconfigured instance of a plugin. Overrides MapperInterface::getInstance 7
PluginManagerBase::handlePluginNotFound protected function Allows plugin managers to specify custom behavior if a plugin is not found. 1
UseCacheBackendTrait::$cacheBackend protected property Cache backend instance.
UseCacheBackendTrait::$useCaches protected property Flag whether caches should be used or skipped.
UseCacheBackendTrait::cacheGet protected function Fetches from the cache backend, respecting the use caches flag. 1
UseCacheBackendTrait::cacheSet protected function Stores data in the persistent cache, respecting the use caches flag.