diff core/lib/Drupal/Core/Condition/ConditionManager.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/Condition/ConditionManager.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,70 @@
+<?php
+
+namespace Drupal\Core\Condition;
+
+use Drupal\Component\Plugin\CategorizingPluginManagerInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Executable\ExecutableManagerInterface;
+use Drupal\Core\Executable\ExecutableInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\CategorizingPluginManagerTrait;
+use Drupal\Core\Plugin\Context\ContextAwarePluginManagerTrait;
+use Drupal\Core\Plugin\DefaultPluginManager;
+
+/**
+ * A plugin manager for condition plugins.
+ *
+ * @see \Drupal\Core\Condition\Annotation\Condition
+ * @see \Drupal\Core\Condition\ConditionInterface
+ * @see \Drupal\Core\Condition\ConditionPluginBase
+ *
+ * @ingroup plugin_api
+ */
+class ConditionManager extends DefaultPluginManager implements ExecutableManagerInterface, CategorizingPluginManagerInterface {
+
+  use CategorizingPluginManagerTrait;
+  use ContextAwarePluginManagerTrait;
+
+  /**
+   * Constructs a ConditionManager 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) {
+    $this->alterInfo('condition_info');
+    $this->setCacheBackend($cache_backend, 'condition_plugins');
+
+    parent::__construct('Plugin/Condition', $namespaces, $module_handler, 'Drupal\Core\Condition\ConditionInterface', 'Drupal\Core\Condition\Annotation\Condition');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function createInstance($plugin_id, array $configuration = []) {
+    $plugin = $this->getFactory()->createInstance($plugin_id, $configuration);
+
+    // If we receive any context values via config set it into the plugin.
+    if (!empty($configuration['context'])) {
+      foreach ($configuration['context'] as $name => $context) {
+        $plugin->setContextValue($name, $context);
+      }
+    }
+
+    return $plugin->setExecutableManager($this);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function execute(ExecutableInterface $condition) {
+    $result = $condition->evaluate();
+    return $condition->isNegated() ? !$result : $result;
+  }
+
+}