class ContextualLinkManager in Zircon Profile 8

Same name and namespace in other branches

8.0 core/lib/Drupal/Core/Menu/ContextualLinkManager.php \Drupal\Core\Menu\ContextualLinkManager

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

View source

class ContextualLinkManager extends DefaultPluginManager implements ContextualLinkManagerInterface {

  /**
   * Provides default values for a contextual link definition.
   *
   * @var array
   */
  protected $defaults = array(
    // (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' => array(),
    // 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(), array(
      '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 {
      $contextual_links = array();
      foreach ($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 = array()) {
    $links = array();
    $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] = array(
        '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

Name	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::$requestStack	protected	property	The request stack.
ContextualLinkManager::getContextualLinkPluginsByGroup	public	function	Gets the contextual link plugins by contextual link group. Overrides ContextualLinkManagerInterface::getContextualLinkPluginsByGroup
ContextualLinkManager::getContextualLinksArrayByGroup	public	function	Gets the contextual links prepared as expected by links.html.twig. Overrides ContextualLinkManagerInterface::getContextualLinksArrayByGroup
ContextualLinkManager::getDiscovery	protected	function	Gets the plugin discovery. Overrides DefaultPluginManager::getDiscovery
ContextualLinkManager::processDefinition	public	function	Performs extra processing on plugin definitions. Overrides DefaultPluginManager::processDefinition
ContextualLinkManager::__construct	public	function	Constructs a new ContextualLinkManager instance. Overrides DefaultPluginManager::__construct
DefaultPluginManager::$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::$moduleHandler	protected	property	The module handler to invoke the alter hook.
DefaultPluginManager::$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.
DefaultPluginManager::$subdir	protected	property	The subdirectory within a namespace to look for plugins, or FALSE if the plugins are in the top level of the namespace.
DefaultPluginManager::alterDefinitions	protected	function	Invokes the hook to alter the definitions if the alter hook is set.	1
DefaultPluginManager::alterInfo	protected	function	Initializes the alter hook.
DefaultPluginManager::clearCachedDefinitions	public	function	Clears static and persistent plugin definition caches. Overrides CachedDiscoveryInterface::clearCachedDefinitions	4
DefaultPluginManager::findDefinitions	protected	function	Finds plugin definitions.	2
DefaultPluginManager::getCachedDefinitions	protected	function	Returns the cached plugin definitions of the decorated discovery class.
DefaultPluginManager::getDefinitions	public	function	Gets the definition of all plugins for this type. Overrides DiscoveryTrait::getDefinitions	2
DefaultPluginManager::getFactory	protected	function	Gets the plugin factory. Overrides PluginManagerBase::getFactory
DefaultPluginManager::providerExists	protected	function	Determines if the provider of a definition exists.	1
DefaultPluginManager::setCacheBackend	public	function	Initialize the cache backend.
DefaultPluginManager::setCachedDefinitions	protected	function	Sets a cache of plugin definitions for the decorated discovery class.
DefaultPluginManager::useCaches	public	function	Disable the use of caches. Overrides CachedDiscoveryInterface::useCaches	1
DiscoveryCachedTrait::$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::$mapper	protected	property	The object that returns the preconfigured plugin instance appropriate for a particular runtime condition.
PluginManagerBase::createInstance	public	function	Creates a pre-configured instance of a plugin. Overrides FactoryInterface::createInstance	11
PluginManagerBase::getInstance	public	function	Gets a preconfigured instance of a plugin. Overrides MapperInterface::getInstance	7
UseCacheBackendTrait::$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.
UseCacheBackendTrait::cacheSet	protected	function	Stores data in the persistent cache, respecting the use caches flag.

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class ContextualLinkManager in Zircon Profile 8

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