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class BlockManager in Zircon Profile 8.0

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Block/BlockManager.php \Drupal\Core\Block\BlockManager

Manages discovery and instantiation of block plugins.

@todo Add documentation to this class.

Hierarchy

Expanded class hierarchy of BlockManager

See also

\Drupal\Core\Block\BlockPluginInterface

1 string reference to 'BlockManager'
core.services.yml in core/core.services.yml
core/core.services.yml
1 service uses BlockManager
plugin.manager.block in core/core.services.yml
Drupal\Core\Block\BlockManager

File

core/lib/Drupal/Core/Block/BlockManager.php, line 24
Contains \Drupal\Core\Block\BlockManager.

Namespace

Drupal\Core\Block
View source 
class BlockManager extends DefaultPluginManager implements BlockManagerInterface, FallbackPluginManagerInterface {
  use CategorizingPluginManagerTrait {
    getSortedDefinitions as traitGetSortedDefinitions;
    getGroupedDefinitions as traitGetGroupedDefinitions;
  }
  use ContextAwarePluginManagerTrait;

  /**
   * Constructs a new \Drupal\Core\Block\BlockManager object.
   *
   * @param \Traversable $namespaces
   *   An object that implements \Traversable which contains the root paths
   *   keyed by the corresponding namespace to look for plugin implementations.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   Cache backend instance to use.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler to invoke the alter hook with.
   */
  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
    parent::__construct('Plugin/Block', $namespaces, $module_handler, 'Drupal\\Core\\Block\\BlockPluginInterface', 'Drupal\\Core\\Block\\Annotation\\Block');
    $this
      ->alterInfo('block');
    $this
      ->setCacheBackend($cache_backend, 'block_plugins');
  }

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

  /**
   * {@inheritdoc}
   */
  public function getSortedDefinitions(array $definitions = NULL) {

    // Sort the plugins first by category, then by label.
    $definitions = $this
      ->traitGetSortedDefinitions($definitions, 'admin_label');

    // Do not display the 'broken' plugin in the UI.
    unset($definitions['broken']);
    return $definitions;
  }

  /**
   * {@inheritdoc}
   */
  public function getGroupedDefinitions(array $definitions = NULL) {
    $definitions = $this
      ->traitGetGroupedDefinitions($definitions, 'admin_label');

    // Do not display the 'broken' plugin in the UI.
    unset($definitions[$this
      ->t('Block')]['broken']);
    return $definitions;
  }

  /**
   * {@inheritdoc}
   */
  public function getFallbackPluginId($plugin_id, array $configuration = array()) {
    return 'broken';
  }

}

Members

Namesort descending Modifiers Type Description Overrides
BlockManager::getFallbackPluginId public function Gets a fallback id for a missing plugin. Overrides FallbackPluginManagerInterface::getFallbackPluginId
BlockManager::getGroupedDefinitions public function Gets sorted plugin definitions grouped by category. Overrides CategorizingPluginManagerInterface::getGroupedDefinitions
BlockManager::getSortedDefinitions public function Gets sorted plugin definitions. Overrides CategorizingPluginManagerInterface::getSortedDefinitions
BlockManager::processDefinition public function Performs extra processing on plugin definitions. Overrides DefaultPluginManager::processDefinition
BlockManager::__construct public function Constructs a new \Drupal\Core\Block\BlockManager object. Overrides DefaultPluginManager::__construct
CategorizingPluginManagerTrait::getCategories public function
CategorizingPluginManagerTrait::getGroupedDefinitions public function Aliased as: traitGetGroupedDefinitions
CategorizingPluginManagerTrait::getModuleHandler public function Returns the module handler used.
CategorizingPluginManagerTrait::getProviderName protected function Gets the name of a provider.
CategorizingPluginManagerTrait::getSortedDefinitions public function Aliased as: traitGetSortedDefinitions
CategorizingPluginManagerTrait::processDefinitionCategory protected function Processes a plugin definition to ensure there is a category.
ContextAwarePluginManagerTrait::contextHandler protected function Wraps the context handler.
ContextAwarePluginManagerTrait::getDefinitions abstract public function See \Drupal\Component\Plugin\Discovery\DiscoveryInterface::getDefinitions().
ContextAwarePluginManagerTrait::getDefinitionsForContexts public function See \Drupal\Core\Plugin\Context\ContextAwarePluginManagerInterface::getDefinitionsForContexts().
DefaultPluginManager::$alterHook protected property Name of the alter hook if one should be invoked.
DefaultPluginManager::$cacheKey protected property The cache key.
DefaultPluginManager::$cacheTags protected property An array of cache tags to use for the cached definitions.
DefaultPluginManager::$defaults protected property A set of defaults to be referenced by $this->processDefinition() if additional processing of plugins is necessary or helpful for development purposes. 5
DefaultPluginManager::$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::getDiscovery protected function Gets the plugin discovery. Overrides PluginManagerBase::getDiscovery 7
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
StringTranslationTrait::$stringTranslation protected property The string translation service.
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
UseCacheBackendTrait::$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.