token_entity_render-8.x-1.x-dev/token_entity_render.module

<?php

/**
 * @file
 * Hook implementations for token_entity_render.
 */

use Drupal\Core\Render\BubbleableMetadata;

/**
 * Implements hook_token_info_alter().
 */
function token_entity_render_token_info_alter(array &$data) {
  // Load all possible view modes.
  $all_view_modes = \Drupal::service('entity.manager')->getStorage('entity_view_mode')->loadMultiple();

  // Traverse all view modes.
  foreach ($all_view_modes as $mode) {

    // Leave if no entity type is set.
    if (!isset($data['tokens'][$mode->getTargetType()])) {
      continue;
    }

    // Load the entity type definition.
    $entity_type_definition = \Drupal::service('entity_type.manager')->getDefinition($mode->getTargetType());

    // Remove the prefix from the view mode name.
    $mode_name = preg_replace('/(.*?\.)/', '', $mode->id());

    // Add token information.
    $data['tokens'][$mode->getTargetType()]['render:' . $mode_name] = [
      'name' => $mode->label(),
      'description' => t('Muestra la entidad @entity_type usando el modo de visualización @view_mode.', [
        '@entity_type' => $entity_type_definition->getLabel(),
        '@view_mode' => $mode->label(),
      ]),
    ];
  }
}

/**
 * Implements hook_tokens().
 */
function token_entity_render_tokens($type, array $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata) {
  $replacements = [];
  $to_process = [];

  if (!isset($data['entity_type'])) {
    // Don't do anything if not processing an entity.
    return $replacements;
  }

  // We have to discard quickly those tokens we are not to process.
  foreach ($tokens as $token_key => $token_replaceable_value) {
    $token_prefix = 'render:';
    if (strpos($token_key, $token_prefix) === FALSE) {
      // This is faster than regexp or strstr.
      continue;
    }
    $to_process[$token_replaceable_value] = substr($token_key, strlen($token_prefix));
  }

  if (!$to_process) {
    // Don't do anything if nothing to process.
    return $replacements;
  }

  // Load all possible view modes.
  $all_view_modes = \Drupal::service('entity.manager')->getStorage('entity_view_mode')->loadMultiple();

  // Traverse again all tokens to process.
  $renderer = \Drupal::service('renderer');
  foreach ($to_process as $token_replaceable_value => $view_mode_name) {
    // If the view mode actually exists and if the entity type matches.
    if (($view_mode = $all_view_modes[$data['entity_type'] . '.' . $view_mode_name])) {
      // The view mode name does not have the entity name.
      $mode_machine_name = substr($view_mode->id(), strlen($view_mode->getTargetType()) + 1);

      $rendered_entity = \Drupal::entityTypeManager()->getViewBuilder($view_mode->getTargetType())->view($data['entity'], $mode_machine_name);

      // Add the replacement.
      $replacements[$token_replaceable_value] = $renderer->renderPlain($rendered_entity);
    }
  }

  // Return replacements, if any.
  return $replacements;
}