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[yaffs-website] / web / core / lib / Drupal / Component / Plugin / ContextAwarePluginInterface.php

diff --git a/web/core/lib/Drupal/Component/Plugin/ContextAwarePluginInterface.php b/web/core/lib/Drupal/Component/Plugin/ContextAwarePluginInterface.php
new file mode 100644 (file)
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+++ b/web/core/lib/Drupal/Component/Plugin/ContextAwarePluginInterface.php
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+<?php
+
+namespace Drupal\Component\Plugin;
+
+use \Drupal\Component\Plugin\Context\ContextInterface;
+
+/**
+ * Interface for defining context aware plugins.
+ *
+ * Context aware plugins can specify an array of context definitions keyed by
+ * context name at the plugin definition under the "context" key.
+ *
+ * @ingroup plugin_api
+ */
+interface ContextAwarePluginInterface extends PluginInspectionInterface {
+
+  /**
+   * Gets the context definitions of the plugin.
+   *
+   * @return \Drupal\Component\Plugin\Context\ContextDefinitionInterface[]
+   *   The array of context definitions, keyed by context name.
+   */
+  public function getContextDefinitions();
+
+  /**
+   * Gets a specific context definition of the plugin.
+   *
+   * @param string $name
+   *   The name of the context in the plugin definition.
+   *
+   * @return \Drupal\Component\Plugin\Context\ContextDefinitionInterface
+   *   The definition against which the context value must validate.
+   *
+   * @throws \Drupal\Component\Plugin\Exception\PluginException
+   *   If the requested context is not defined.
+   */
+  public function getContextDefinition($name);
+
+  /**
+   * Gets the defined contexts.
+   *
+   * @return array
+   *   The set context objects.
+   *
+   * @throws \Drupal\Component\Plugin\Exception\PluginException
+   *   If contexts are defined but not set.
+   */
+  public function getContexts();
+
+  /**
+   * Gets a defined context.
+   *
+   * @param string $name
+   *   The name of the context in the plugin definition.
+   *
+   * @return \Drupal\Component\Plugin\Context\ContextInterface
+   *   The context object.
+   *
+   * @throws \Drupal\Component\Plugin\Exception\PluginException
+   *   If the requested context is not set.
+   */
+  public function getContext($name);
+
+  /**
+   * Gets the values for all defined contexts.
+   *
+   * @return array
+   *   An array of set context values, keyed by context name. If a context is
+   *   unset its value is returned as NULL.
+   */
+  public function getContextValues();
+
+  /**
+   * Gets the value for a defined context.
+   *
+   * @param string $name
+   *   The name of the context in the plugin configuration.
+   *
+   * @return mixed
+   *   The currently set context value.
+   *
+   * @throws \Drupal\Component\Plugin\Exception\PluginException
+   *   If the requested context is not set.
+   */
+  public function getContextValue($name);
+
+  /**
+   * Set a context on this plugin.
+   *
+   * @param string $name
+   *   The name of the context in the plugin configuration.
+   * @param \Drupal\Component\Plugin\Context\ContextInterface $context
+   *   The context object to set.
+   */
+  public function setContext($name, ContextInterface $context);
+
+  /**
+   * Sets the value for a defined context.
+   *
+   * @param string $name
+   *   The name of the context in the plugin definition.
+   * @param mixed $value
+   *   The value to set the context to. The value has to validate against the
+   *   provided context definition.
+   *
+   * @return \Drupal\Component\Plugin\ContextAwarePluginInterface
+   *   A context aware plugin object for chaining.
+   *
+   * @throws \Drupal\Component\Plugin\Exception\PluginException
+   *   If the value does not pass validation.
+   */
+  public function setContextValue($name, $value);
+
+  /**
+   * Validates the set values for the defined contexts.
+   *
+   * @return \Symfony\Component\Validator\ConstraintViolationListInterface
+   *   A list of constraint violations. If the list is empty, validation
+   *   succeeded.
+   */
+  public function validateContexts();
+
+  /**
+   * Gets a mapping of the expected assignment names to their context names.
+   *
+   * @return array
+   *   A mapping of the expected assignment names to their context names. For
+   *   example, if one of the $contexts is named 'user.current_user', but the
+   *   plugin expects a context named 'user', then this map would contain
+   *   'user' => 'user.current_user'.
+   */
+  public function getContextMapping();
+
+  /**
+   * Sets a mapping of the expected assignment names to their context names.
+   *
+   * @param array $context_mapping
+   *   A mapping of the expected assignment names to their context names. For
+   *   example, if one of the $contexts is named 'user.current_user', but the
+   *   plugin expects a context named 'user', then this map would contain
+   *   'user' => 'user.current_user'.
+   *
+   * @return $this
+   */
+  public function setContextMapping(array $context_mapping);
+
+}