class BookNavigationBlock in Drupal 8

Same name and namespace in other branches

9 core/modules/book/src/Plugin/Block/BookNavigationBlock.php \Drupal\book\Plugin\Block\BookNavigationBlock
10 core/modules/book/src/Plugin/Block/BookNavigationBlock.php \Drupal\book\Plugin\Block\BookNavigationBlock

Provides a 'Book navigation' block.

Plugin annotation


@Block(
  id = "book_navigation",
  admin_label = @Translation("Book navigation"),
  category = @Translation("Menus")
)

Hierarchy

class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
- class \Drupal\Component\Plugin\ContextAwarePluginBase implements ContextAwarePluginInterface
  - class \Drupal\Core\Plugin\ContextAwarePluginBase implements CacheableDependencyInterface, ContextAwarePluginInterface uses DependencySerializationTrait, StringTranslationTrait, TypedDataTrait
    class \Drupal\Core\Block\BlockBase implements BlockPluginInterface, PluginWithFormsInterface, PreviewFallbackInterface uses BlockPluginTrait, ContextAwarePluginAssignmentTrait
    class \Drupal\book\Plugin\Block\BookNavigationBlock implements ContainerFactoryPluginInterface

Expanded class hierarchy of BookNavigationBlock

File

core/modules/book/src/Plugin/Block/BookNavigationBlock.php, line 24

Namespace

Drupal\book\Plugin\Block

View source

class BookNavigationBlock extends BlockBase implements ContainerFactoryPluginInterface {

  /**
   * The request object.
   *
   * @var \Symfony\Component\HttpFoundation\RequestStack
   */
  protected $requestStack;

  /**
   * The book manager.
   *
   * @var \Drupal\book\BookManagerInterface
   */
  protected $bookManager;

  /**
   * The node storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $nodeStorage;

  /**
   * Constructs a new BookNavigationBlock instance.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
   *   The request stack object.
   * @param \Drupal\book\BookManagerInterface $book_manager
   *   The book manager.
   * @param \Drupal\Core\Entity\EntityStorageInterface $node_storage
   *   The node storage.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, RequestStack $request_stack, BookManagerInterface $book_manager, EntityStorageInterface $node_storage) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->requestStack = $request_stack;
    $this->bookManager = $book_manager;
    $this->nodeStorage = $node_storage;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('request_stack'), $container
      ->get('book.manager'), $container
      ->get('entity_type.manager')
      ->getStorage('node'));
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'block_mode' => "all pages",
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function blockForm($form, FormStateInterface $form_state) {
    $options = [
      'all pages' => $this
        ->t('Show block on all pages'),
      'book pages' => $this
        ->t('Show block only on book pages'),
    ];
    $form['book_block_mode'] = [
      '#type' => 'radios',
      '#title' => $this
        ->t('Book navigation block display'),
      '#options' => $options,
      '#default_value' => $this->configuration['block_mode'],
      '#description' => $this
        ->t("If <em>Show block on all pages</em> is selected, the block will contain the automatically generated menus for all of the site's books. If <em>Show block only on book pages</em> is selected, the block will contain only the one menu corresponding to the current page's book. In this case, if the current page is not in a book, no block will be displayed. The <em>Page specific visibility settings</em> or other visibility settings can be used in addition to selectively display this block."),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function blockSubmit($form, FormStateInterface $form_state) {
    $this->configuration['block_mode'] = $form_state
      ->getValue('book_block_mode');
  }

  /**
   * {@inheritdoc}
   */
  public function build() {
    $current_bid = 0;
    if ($node = $this->requestStack
      ->getCurrentRequest()
      ->get('node')) {
      $current_bid = empty($node->book['bid']) ? 0 : $node->book['bid'];
    }
    if ($this->configuration['block_mode'] == 'all pages') {
      $book_menus = [];
      $pseudo_tree = [
        0 => [
          'below' => FALSE,
        ],
      ];
      foreach ($this->bookManager
        ->getAllBooks() as $book_id => $book) {
        if ($book['bid'] == $current_bid) {

          // If the current page is a node associated with a book, the menu
          // needs to be retrieved.
          $data = $this->bookManager
            ->bookTreeAllData($node->book['bid'], $node->book);
          $book_menus[$book_id] = $this->bookManager
            ->bookTreeOutput($data);
        }
        else {

          // Since we know we will only display a link to the top node, there
          // is no reason to run an additional menu tree query for each book.
          $book['in_active_trail'] = FALSE;

          // Check whether user can access the book link.
          $book_node = $this->nodeStorage
            ->load($book['nid']);
          $book['access'] = $book_node
            ->access('view');
          $pseudo_tree[0]['link'] = $book;
          $book_menus[$book_id] = $this->bookManager
            ->bookTreeOutput($pseudo_tree);
        }
        $book_menus[$book_id] += [
          '#book_title' => $book['title'],
        ];
      }
      if ($book_menus) {
        return [
          '#theme' => 'book_all_books_block',
        ] + $book_menus;
      }
    }
    elseif ($current_bid) {

      // Only display this block when the user is browsing a book and do
      // not show unpublished books.
      $nid = \Drupal::entityQuery('node')
        ->condition('nid', $node->book['bid'], '=')
        ->condition('status', NodeInterface::PUBLISHED)
        ->execute();

      // Only show the block if the user has view access for the top-level node.
      if ($nid) {
        $tree = $this->bookManager
          ->bookTreeAllData($node->book['bid'], $node->book);

        // There should only be one element at the top level.
        $data = array_shift($tree);
        $below = $this->bookManager
          ->bookTreeOutput($data['below']);
        if (!empty($below)) {
          return $below;
        }
      }
    }
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheContexts() {
    return Cache::mergeContexts(parent::getCacheContexts(), [
      'route.book_navigation',
    ]);
  }

  /**
   * {@inheritdoc}
   *
   * @todo Make cacheable in https://www.drupal.org/node/2483181
   */
  public function getCacheMaxAge() {
    return 0;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
BlockPluginInterface::BLOCK_LABEL_VISIBLE		constant	Indicates the block label (title) should be displayed to end users.
BlockPluginTrait::$transliteration	protected	property	The transliteration service.
BlockPluginTrait::access	public	function
BlockPluginTrait::baseConfigurationDefaults	protected	function	Returns generic default configuration for block plugins.
BlockPluginTrait::blockAccess	protected	function	Indicates whether the block should be shown.	16
BlockPluginTrait::blockValidate	public	function		3
BlockPluginTrait::buildConfigurationForm	public	function	Creates a generic configuration form for all block types. Individual block plugins can add elements to this form by overriding BlockBase::blockForm(). Most block plugins should not override this method unless they need to alter the generic form elements.	2
BlockPluginTrait::calculateDependencies	public	function
BlockPluginTrait::getConfiguration	public	function		1
BlockPluginTrait::getMachineNameSuggestion	public	function		1
BlockPluginTrait::getPreviewFallbackString	public	function		3
BlockPluginTrait::label	public	function
BlockPluginTrait::setConfiguration	public	function
BlockPluginTrait::setConfigurationValue	public	function
BlockPluginTrait::setTransliteration	public	function	Sets the transliteration service.
BlockPluginTrait::submitConfigurationForm	public	function	Most block plugins should not override this method. To add submission handling for a specific block type, override BlockBase::blockSubmit().
BlockPluginTrait::transliteration	protected	function	Wraps the transliteration service.
BlockPluginTrait::validateConfigurationForm	public	function	Most block plugins should not override this method. To add validation for a specific block type, override BlockBase::blockValidate().	1
BookNavigationBlock::$bookManager	protected	property	The book manager.
BookNavigationBlock::$nodeStorage	protected	property	The node storage.
BookNavigationBlock::$requestStack	protected	property	The request object.
BookNavigationBlock::blockForm	public	function	Overrides BlockPluginTrait::blockForm
BookNavigationBlock::blockSubmit	public	function	Overrides BlockPluginTrait::blockSubmit
BookNavigationBlock::build	public	function	Builds and returns the renderable array for this block plugin. Overrides BlockPluginInterface::build
BookNavigationBlock::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
BookNavigationBlock::defaultConfiguration	public	function	Overrides BlockPluginTrait::defaultConfiguration
BookNavigationBlock::getCacheContexts	public	function	The cache contexts associated with this object. Overrides ContextAwarePluginBase::getCacheContexts
BookNavigationBlock::getCacheMaxAge	public	function	@todo Make cacheable in https://www.drupal.org/node/2483181 Overrides ContextAwarePluginBase::getCacheMaxAge
BookNavigationBlock::__construct	public	function	Constructs a new BookNavigationBlock instance. Overrides BlockPluginTrait::__construct
ContextAwarePluginAssignmentTrait::addContextAssignmentElement	protected	function	Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler	protected	function	Wraps the context handler.
ContextAwarePluginBase::$context	protected	property	The data objects representing the context of this plugin.
ContextAwarePluginBase::$contexts Deprecated	private	property	Data objects representing the contexts passed in the plugin configuration.
ContextAwarePluginBase::createContextFromConfiguration	protected	function	Overrides ContextAwarePluginBase::createContextFromConfiguration
ContextAwarePluginBase::getCacheTags	public	function	The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags	4
ContextAwarePluginBase::getContext	public	function	This code is identical to the Component in order to pick up a different Context class. Overrides ContextAwarePluginBase::getContext
ContextAwarePluginBase::getContextDefinition	public	function	Overrides ContextAwarePluginBase::getContextDefinition
ContextAwarePluginBase::getContextDefinitions	public	function	Overrides ContextAwarePluginBase::getContextDefinitions
ContextAwarePluginBase::getContextMapping	public	function	Gets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::getContextMapping
ContextAwarePluginBase::getContexts	public	function	Gets the defined contexts. Overrides ContextAwarePluginInterface::getContexts
ContextAwarePluginBase::getContextValue	public	function	Gets the value for a defined context. Overrides ContextAwarePluginInterface::getContextValue
ContextAwarePluginBase::getContextValues	public	function	Gets the values for all defined contexts. Overrides ContextAwarePluginInterface::getContextValues
ContextAwarePluginBase::setContext	public	function	Set a context on this plugin. Overrides ContextAwarePluginBase::setContext
ContextAwarePluginBase::setContextMapping	public	function	Sets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::setContextMapping
ContextAwarePluginBase::setContextValue	public	function	Sets the value for a defined context. Overrides ContextAwarePluginBase::setContextValue
ContextAwarePluginBase::validateContexts	public	function	Validates the set values for the defined contexts. Overrides ContextAwarePluginInterface::validateContexts
ContextAwarePluginBase::__get	public	function	Implements magic __get() method.
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	3
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
PluginWithFormsTrait::getFormClass	public	function
PluginWithFormsTrait::hasFormClass	public	function
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
TypedDataTrait::$typedDataManager	protected	property	The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager	public	function	Gets the typed data manager.	2
TypedDataTrait::setTypedDataManager	public	function	Sets the typed data manager.	2

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class BookNavigationBlock in Drupal 8

Plugin annotation

Hierarchy

File

Namespace

Members

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