interface BlockPluginInterface in Drupal 10

Defines the required interface for all block plugins.

@todo Add detailed documentation here explaining the block system's architecture and the relationships between the various objects, including brief references to the important components that are not coupled to the interface.

Hierarchy

• interface \Drupal\Component\Plugin\ConfigurableInterface; interface \Drupal\Component\Plugin\DependentPluginInterface; interface \Drupal\Core\Plugin\PluginFormInterface; interface \Drupal\Component\Plugin\PluginInspectionInterface; interface \Drupal\Core\Cache\CacheableDependencyInterface; interface \Drupal\Component\Plugin\DerivativeInspectionInterface
  • interface \Drupal\Core\Block\BlockPluginInterface

Related topics

Block API

Information about the classes and interfaces that make up the Block API.

18 files declare their use of BlockPluginInterface

BlockComponentRenderArray.php in core/modules/layout_builder/src/EventSubscriber/BlockComponentRenderArray.php

BlockComponentRenderArrayTest.php in core/modules/layout_builder/tests/src/Unit/BlockComponentRenderArrayTest.php

BlockEntitySettingTrayForm.php in core/modules/settings_tray/src/Block/BlockEntitySettingTrayForm.php

BlockForm.php in core/modules/block/src/BlockForm.php

BlockInterfaceTest.php in core/modules/block/tests/src/Kernel/BlockInterfaceTest.php

... See full list

File

core/lib/Drupal/Core/Block/BlockPluginInterface.php, line 24

Namespace

Drupal\Core\Block

interface BlockPluginInterface extends ConfigurableInterface, DependentPluginInterface, PluginFormInterface, PluginInspectionInterface, CacheableDependencyInterface, DerivativeInspectionInterface {

  /**
   * Indicates the block label (title) should be displayed to end users.
   */
  const BLOCK_LABEL_VISIBLE = 'visible';

  /**
   * Returns the user-facing block label.
   *
   * @todo Provide other specific label-related methods in
   *   https://www.drupal.org/node/2025649.
   *
   * @return string
   *   The block label.
   */
  public function label();

  /**
   * Indicates whether the block should be shown.
   *
   * This method allows base implementations to add general access restrictions
   * that should apply to all extending block plugins.
   *
   * @param \Drupal\Core\Session\AccountInterface $account
   *   The user session for which to check access.
   * @param bool $return_as_object
   *   (optional) Defaults to FALSE.
   *
   * @return bool|\Drupal\Core\Access\AccessResultInterface
   *   The access result. Returns a boolean if $return_as_object is FALSE (this
   *   is the default) and otherwise an AccessResultInterface object.
   *   When a boolean is returned, the result of AccessInterface::isAllowed() is
   *   returned, i.e. TRUE means access is explicitly allowed, FALSE means
   *   access is either explicitly forbidden or "no opinion".
   *
   * @see \Drupal\block\BlockAccessControlHandler
   */
  public function access(AccountInterface $account, $return_as_object = FALSE);

  /**
   * Builds and returns the renderable array for this block plugin.
   *
   * If a block should not be rendered because it has no content, then this
   * method must also ensure to return no content: it must then only return an
   * empty array, or an empty array with #cache set (with cacheability metadata
   * indicating the circumstances for it being empty).
   *
   * @return array
   *   A renderable array representing the content of the block.
   *
   * @see \Drupal\block\BlockViewBuilder
   */
  public function build();

  /**
   * Sets a particular value in the block settings.
   *
   * @param string $key
   *   The key of PluginBase::$configuration to set.
   * @param mixed $value
   *   The value to set for the provided key.
   *
   * @todo This doesn't belong here. Move this into a new base class in
   *   https://www.drupal.org/node/1764380.
   * @todo This does not set a value in \Drupal::config(), so the name is confusing.
   *
   * @see \Drupal\Component\Plugin\PluginBase::$configuration
   */
  public function setConfigurationValue($key, $value);

  /**
   * Returns the configuration form elements specific to this block plugin.
   *
   * Blocks that need to add form elements to the normal block configuration
   * form should implement this method.
   *
   * @param array $form
   *   The form definition array for the block configuration form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @return array
   *   The renderable form array representing the entire configuration form.
   */
  public function blockForm($form, FormStateInterface $form_state);

  /**
   * Adds block type-specific validation for the block form.
   *
   * Note that this method takes the form structure and form state for the full
   * block configuration form as arguments, not just the elements defined in
   * BlockPluginInterface::blockForm().
   *
   * @param array $form
   *   The form definition array for the full block configuration form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @see \Drupal\Core\Block\BlockPluginInterface::blockForm()
   * @see \Drupal\Core\Block\BlockPluginInterface::blockSubmit()
   */
  public function blockValidate($form, FormStateInterface $form_state);

  /**
   * Adds block type-specific submission handling for the block form.
   *
   * Note that this method takes the form structure and form state for the full
   * block configuration form as arguments, not just the elements defined in
   * BlockPluginInterface::blockForm().
   *
   * @param array $form
   *   The form definition array for the full block configuration form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @see \Drupal\Core\Block\BlockPluginInterface::blockForm()
   * @see \Drupal\Core\Block\BlockPluginInterface::blockValidate()
   */
  public function blockSubmit($form, FormStateInterface $form_state);

  /**
   * Suggests a machine name to identify an instance of this block.
   *
   * The block plugin need not verify that the machine name is at all unique. It
   * is only responsible for providing a baseline suggestion; calling code is
   * responsible for ensuring whatever uniqueness is required for the use case.
   *
   * @return string
   *   The suggested machine name.
   */
  public function getMachineNameSuggestion();

}