flexiform-8.x-1.x-dev/src/Controller/FlexiformController.php

<?php

namespace Drupal\flexiform\Controller;

use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\Entity\Entity\EntityFormDisplay;
use Drupal\Core\Entity\Entity\EntityFormMode;
use Drupal\Core\Form\FormBuilderInterface;
use Drupal\Core\Form\FormState;
use Drupal\Core\Routing\RouteMatch;
use Drupal\flexiform\Utility\Token;
use Drupal\flexiform\FlexiformManager;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Request;

/**
 * Controller for flexiform pages.
 */
class FlexiformController extends ControllerBase {

  /**
   * The token service.
   *
   * @var \Drupal\flexiform\Utility\Token
   */
  protected $token;

  /**
   * The entity form builder.
   *
   * @var \Drupal\Core\Form\FormBuilderInterface
   */
  protected $formBuilder;

  /**
   * The flexiform manager.
   *
   * @var \Drupal\flexiform\FlexiformManager
   */
  protected $flexiformManager;

  /**
   * Construct a new flexiform controller.
   *
   * @param \Drupal\flexiform\Utility\Token $token
   *   The token service.
   * @param \Drupal\Core\Form\FormBuilderInterface $form_builder
   *   The entity form builder.
   * @param \Drupal\flexiform\FlexiformManager $flexiform_manager
   *   The flexiform manager.
   */
  public function __construct(Token $token, FormBuilderInterface $form_builder, FlexiformManager $flexiform_manager) {
    $this->token = $token;
    $this->formBuilder = $form_builder;
    $this->flexiformManager = $flexiform_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('flexiform.token'),
      $container->get('form_builder'),
      $container->get('flexiform.manager')
    );
  }

  /**
   * Flexiform form mode page.
   */
  public function formModePage(EntityFormMode $form_mode, Request $request) {
    $provided = $this->getProvidedEntities($form_mode, $request);
    $entity = $provided['base_entity'];
    unset($provided['base_entity']);

    $settings = $form_mode->getThirdPartySetting('flexiform', 'exposure');

    list($entity_type_id, $display_mode_name) = explode('.', $form_mode->id(), 2);
    $entity_form_display = EntityFormDisplay::collectRenderDisplay($entity, $display_mode_name);
    $form_object = $this->flexiformManager->getFormObject($entity_form_display, [
      $entity_form_display->getBaseEntityNamespace() => $entity,
    ]);

    $form_state = new FormState();
    $form_state->set('form_entity_provided', $provided);
    return $this->formBuilder->buildForm($form_object, $form_state);
  }

  /**
   * Flexiform form mode title callback.
   */
  public function formModePageTitle(EntityFormMode $form_mode, Request $request) {
    $settings = $form_mode->getThirdPartySetting('flexiform', 'exposure');
    $entities = $this->getProvidedEntities($form_mode, $request);

    // @todo: Move this process somewhere better.
    $token_data = $token_options = [];
    $token_info = $this->token->getInfo();
    foreach ($entities as $namespace => $entity) {
      $token_type = $entity->getEntityType()->get('token_type') ?: (!empty($token_info['types'][$entity->getEntityTypeId()]) ? $entity->getEntityTypeId() : FALSE);
      if ($token_type) {
        $token_data[$namespace] = $entity;
        $token_options['alias'][$namespace] = $token_type;
      }
    }

    return $this->token->replace($settings['title'], $token_data, $token_options);
  }

  /**
   * Get the provided entities.
   *
   * @return \Drupal\Core\Entity\EntityInterface[]
   *   An array of provided entities keyed by machine name.
   */
  protected function getProvidedEntities(EntityFormMode $form_mode, Request $request) {
    $route_match = RouteMatch::createFromRequest($request);
    $settings = $form_mode->getThirdPartySetting('flexiform', 'exposure');

    $provided = [];
    $provided['base_entity'] = $route_match->getParameter('base_entity');
    foreach ($settings['parameters'] as $namespace => $info) {
      if ($provided_entity = $route_match->getParameter($namespace)) {
        $provided[$namespace] = $provided_entity;
      }
    }

    return $provided;
  }

}