diff core/lib/Drupal/Core/Block/BlockManager.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/Block/BlockManager.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,70 @@
+<?php
+
+namespace Drupal\Core\Block;
+
+use Drupal\Component\Plugin\FallbackPluginManagerInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\CategorizingPluginManagerTrait;
+use Drupal\Core\Plugin\Context\ContextAwarePluginManagerTrait;
+use Drupal\Core\Plugin\DefaultPluginManager;
+
+/**
+ * Manages discovery and instantiation of block plugins.
+ *
+ * @todo Add documentation to this class.
+ *
+ * @see \Drupal\Core\Block\BlockPluginInterface
+ */
+class BlockManager extends DefaultPluginManager implements BlockManagerInterface, FallbackPluginManagerInterface {
+
+  use CategorizingPluginManagerTrait {
+    getSortedDefinitions as traitGetSortedDefinitions;
+  }
+  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 admin label.
+    $definitions = $this->traitGetSortedDefinitions($definitions, 'admin_label');
+    // Do not display the 'broken' plugin in the UI.
+    unset($definitions['broken']);
+    return $definitions;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFallbackPluginId($plugin_id, array $configuration = []) {
+    return 'broken';
+  }
+
+}