public function MockBlockManager::__construct

File

drupal/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Plugin/MockBlockManager.php, line 19

Definition of Drupal\plugin_test\Plugin\MockBlockManager.

Class

MockBlockManager

Defines a plugin manager used by Plugin API derivative unit tests.

Namespace

Code

public function __construct() {

  // Create the object that can be used to return definitions for all the
  // plugins available for this type. Most real plugin managers use a richer
  // discovery implementation, but StaticDiscovery lets us add some simple
  // mock plugins for unit testing.
  $this->discovery = new StaticDiscovery();

  // Derivative plugins are plugins that are derived from a base plugin
  // definition and some site configuration (examples below). To allow for
  // such plugins, we add the DerivativeDiscoveryDecorator to our discovery
  // object.
  $this->discovery = new DerivativeDiscoveryDecorator($this->discovery);

  // The plugin definitions that follow are based on work that is in progress
  // for the Drupal 8 Blocks and Layouts initiative
  // (http://groups.drupal.org/node/213563). As stated above, we set
  // definitions here, because this is for unit testing. Real plugin managers
  // use a discovery implementation that allows for any module to add new
  // plugins to the system.
  // A simple plugin: the user login block.
  $this->discovery
    ->setDefinition('user_login', array(
    'label' => 'User login',
    'class' => 'Drupal\\plugin_test\\Plugin\\plugin_test\\mock_block\\MockUserLoginBlock',
  ));

  // A plugin that requires derivatives: the menu block plugin. We do not want
  // a generic "Menu" block showing up in the Block administration UI.
  // Instead, we want a block for each menu, but the number of menus in the
  // system and each one's title is user configurable. The
  // MockMenuBlockDeriver class ensures that only derivatives, and not the
  // base plugin, are available to the system.
  $this->discovery
    ->setDefinition('menu', array(
    'class' => 'Drupal\\plugin_test\\Plugin\\plugin_test\\mock_block\\MockMenuBlock',
    'derivative' => 'Drupal\\plugin_test\\Plugin\\plugin_test\\mock_block\\MockMenuBlockDeriver',
  ));

  // A block plugin that can optionally be derived: the layout block plugin.
  // A layout is a special kind of block into which other blocks can be
  // placed. We want both a generic "Layout" block available in the Block
  // administration UI as well as additional user-created custom layouts. The
  // MockLayoutBlockDeriver class ensures that both the base plugin and the
  // derivatives are available to the system.
  $this->discovery
    ->setDefinition('layout', array(
    'label' => 'Layout',
    'class' => 'Drupal\\plugin_test\\Plugin\\plugin_test\\mock_block\\MockLayoutBlock',
    'derivative' => 'Drupal\\plugin_test\\Plugin\\plugin_test\\mock_block\\MockLayoutBlockDeriver',
  ));

  // In addition to finding all of the plugins available for a type, a plugin
  // type must also be able to create instances of that plugin. For example, a
  // specific instance of a "Main menu" menu block, configured to show just
  // the top-level of links. To handle plugin instantiation, plugin managers
  // can use one of the factory classes included with the plugin system, or
  // create their own. ReflectionFactory is a general purpose, flexible
  // factory suitable for many kinds of plugin types. Factories need access to
  // the plugin definitions (e.g., since that's where the plugin's class is
  // specified), so we provide it the discovery object.
  $this->factory = new ReflectionFactory($this->discovery);
}