ExtraFieldBlockPlugin.php in Entity Extra Field 8

Namespace

Drupal\entity_extra_field\Plugin\ExtraFieldType

File

src/Plugin/ExtraFieldType/ExtraFieldBlockPlugin.php

<?php

namespace Drupal\entity_extra_field\Plugin\ExtraFieldType;

use Drupal\Core\Annotation\Translation;
use Drupal\Core\Block\BlockManagerInterface;
use Drupal\Core\Plugin\ContextAwarePluginInterface;
use Drupal\Core\Entity\Display\EntityDisplayInterface;
use Drupal\Core\Entity\EntityFieldManagerInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Form\SubformState;
use Drupal\Core\Plugin\Context\ContextHandlerInterface;
use Drupal\Core\Plugin\Context\ContextRepositoryInterface;
use Drupal\Core\Plugin\PluginFormInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Utility\Token;
use Drupal\entity_extra_field\Annotation\ExtraFieldType;
use Drupal\entity_extra_field\ExtraFieldTypeBase;
use Drupal\entity_extra_field\ExtraFieldTypePluginBase;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Define extra field block type.
 *
 * @ExtraFieldType(
 *   id = "block",
 *   label = @Translation("Block")
 * )
 */
class ExtraFieldBlockPlugin extends ExtraFieldTypePluginBase {

  /**
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $blockManager;

  /**
   * @var \Drupal\Core\Plugin\Context\ContextHandlerInterface
   */
  protected $contextHandler;

  /**
   * @var \Drupal\Core\Plugin\Context\ContextRepositoryInterface
   */
  protected $contextRepository;

  /**
   * Extra field block plugin constructor.
   *
   * @param array $configuration
   *   The plugin configuration.
   * @param $plugin_id
   *   The plugin identifier.
   * @param $plugin_definition
   *   The plugin definition.
   * @param \Drupal\Core\Utility\Token $token
   *   The token service.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler service.
   * @param \Drupal\Core\Routing\RouteMatchInterface $current_route_match
   *   The current route match service.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager service.
   * @param \Drupal\Core\Entity\EntityFieldManagerInterface $entity_field_manager
   *   The entity field manager service.
   * @param \Drupal\Core\Block\BlockManagerInterface $block_manager
   *   The block manager service.
   * @param \Drupal\Core\Plugin\Context\ContextHandlerInterface $context_handler
   *   The context handler service.
   * @param \Drupal\Core\Plugin\Context\ContextRepositoryInterface $context_repository
   *   The context repository service.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, Token $token, ModuleHandlerInterface $module_handler, RouteMatchInterface $current_route_match, EntityTypeManagerInterface $entity_type_manager, EntityFieldManagerInterface $entity_field_manager, BlockManagerInterface $block_manager, ContextHandlerInterface $context_handler, ContextRepositoryInterface $context_repository) {
    parent::__construct($configuration, $plugin_id, $plugin_definition, $token, $module_handler, $current_route_match, $entity_type_manager, $entity_field_manager);
    $this->blockManager = $block_manager;
    $this->contextHandler = $context_handler;
    $this->contextRepository = $context_repository;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('token'), $container
      ->get('module_handler'), $container
      ->get('current_route_match'), $container
      ->get('entity_type.manager'), $container
      ->get('entity_field.manager'), $container
      ->get('plugin.manager.block'), $container
      ->get('context.handler'), $container
      ->get('context.repository'));
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'block_type' => NULL,
      'block_config' => [],
    ] + parent::defaultConfiguration();
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    $form = parent::buildConfigurationForm($form, $form_state);
    $form_state
      ->setTemporaryValue('gathered_contexts', $this->contextRepository
      ->getAvailableContexts());
    $block_type = $this
      ->getPluginFormStateValue('block_type', $form_state);
    $form['block_type'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Block Type'),
      '#required' => TRUE,
      '#options' => $this
        ->getBlockTypeOptions(),
      '#empty_option' => $this
        ->t('- Select -'),
      '#ajax' => [
        'event' => 'change',
        'method' => 'replace',
      ] + $this
        ->extraFieldPluginAjax(),
      '#default_value' => $block_type,
    ];
    if (isset($block_type) && !empty($block_type)) {
      if ($this->blockManager
        ->hasDefinition($block_type)) {
        $block_config = $this
          ->getPluginFormStateValue('block_config', $form_state, []);
        $block_instance = $this->blockManager
          ->createInstance($block_type, $block_config);
        if ($block_instance instanceof PluginFormInterface) {
          $form['block_config'] = [
            '#type' => 'fieldset',
            '#title' => $this
              ->t('Block Configuration'),
            '#tree' => TRUE,
          ];
          $subform = [
            '#parents' => array_merge($form['#parents'], [
              'block_config',
            ]),
          ];
          $form['block_config'] += $block_instance
            ->buildConfigurationForm($subform, SubformState::createForSubform($subform, $form, $form_state));
        }
      }
    }
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
    parent::validateConfigurationForm($form, $form_state);
    $block_instance = $this
      ->getBlockTypeInstance();
    if ($block_instance !== FALSE) {
      if ($block_instance instanceof PluginFormInterface) {
        $subform = [
          '#parents' => array_merge($form['#parents'], [
            'block_config',
          ]),
        ];
        $block_instance
          ->validateConfigurationForm($subform, SubformState::createForSubform($subform, $form, $form_state));
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    parent::submitConfigurationForm($form, $form_state);
    $block_instance = $this
      ->getBlockTypeInstance();
    if ($block_instance !== FALSE) {
      if ($block_instance instanceof PluginFormInterface) {
        $subform = [
          '#parents' => array_merge($form['#parents'], [
            'block_config',
          ]),
        ];
        $block_instance
          ->submitConfigurationForm($subform, SubformState::createForSubform($subform, $form, $form_state));
        $form_state
          ->setValue([
          'block_config',
        ], $block_instance
          ->getConfiguration());
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function build(EntityInterface $entity, EntityDisplayInterface $display) {
    $block = $this
      ->getBlockTypeInstance();
    if (FALSE === $block) {
      return [];
    }
    if ($block instanceof ContextAwarePluginInterface) {
      try {
        if ($context_mapping = $block
          ->getContextMapping()) {
          $contexts = $this->contextRepository
            ->getRuntimeContexts(array_values($context_mapping));
          $this->contextHandler
            ->applyContextMapping($block, $contexts);
        }
      } catch (\Exception $exception) {
        watchdog_exception('entity_extra_field', $exception);
      }
    }
    return $block
      ->build();
  }

  /**
   * {@inheritdoc}
   */
  public function calculateDependencies() {
    if ($block_type_instance = $this
      ->getBlockTypeInstance()) {
      $this
        ->calculatePluginDependencies($block_type_instance);
    }
    return parent::calculateDependencies();
  }

  /**
   * Get block type instance.
   *
   * @return bool|\Drupal\Core\Block\BlockBase
   *   The block instance; otherwise FALSE if type is not defined.
   *
   * @throws \Drupal\Component\Plugin\Exception\PluginException
   */
  protected function getBlockTypeInstance() {
    $config = $this
      ->getConfiguration();
    if (!isset($config['block_type'])) {
      return FALSE;
    }
    return $this->blockManager
      ->createInstance($config['block_type'], $config['block_config']);
  }

  /**
   * Get block type options.
   *
   * @param array $excluded_ids
   *   An array of block ids to exclude.
   *
   * @return array
   *   An array of block type options.
   */
  protected function getBlockTypeOptions($excluded_ids = []) {
    $options = [];

    // There are a couple block ids that are excluded by default as either
    // they're not really needed, or they are causing problems when selected.
    $excluded_ids = [
      'broken',
      'system_branding_block',
    ] + $excluded_ids;
    foreach ($this->blockManager
      ->getDefinitions() as $block_id => $definition) {
      if (!isset($definition['admin_label']) || in_array($block_id, $excluded_ids)) {
        continue;
      }
      $category = isset($definition['category']) ? $definition['category'] : $this
        ->t('Undefined');
      $options[(string) $category][$block_id] = $definition['admin_label'];
    }
    return $options;
  }

}

Classes

Name	Description
ExtraFieldBlockPlugin	Define extra field block type.