cd_core.module

<?php

/**
 * @file
 * Contains code for Clarodist Core module.
 */

use Drupal\Core\Render\Element;
use Drupal\Component\Utility\Html;

/**
 * Implements hook_entity_type_alter().
 */
function cd_core_entity_type_alter(array &$entity_types) {
  /* @var $entity_types \Drupal\Core\Entity\EntityTypeInterface[] */
  if (isset($entity_types['contact_form'])) {
    $entity_types['contact_form']->setHandlerClass('access', '\Drupal\cd_core\ContactFormAccessControlHandler');
  }
}

/**
 * Prepares variables for the side_by_side layout template.
 *
 * Default template: layout--side-by-side.html.twig.
 *
 * See the layout--side-by-side.html.twig template for the list of variables.
 */
function template_preprocess_layout__side_by_side(&$variables) {
  $variables['content']['main']['#pre_render'][] = function($region) {
    foreach (Element::children($region) as $item_key) {
      $region[$item_key]['#theme_wrappers']['container__sbs_item'] = [
        '#attributes' => ['data-region' => $region[$item_key]['#group'] ?? 'main'],
      ];
    }

    return $region;
  };
}

/**
 * Implements hook_preprocess_HOOK() for container__sbs_items.
 *
 * Removes possibly duped attributes (classes or mainly ids) from the container
 * by overriding the provided array.
 */
function cd_core_preprocess_container__sbs_item(&$variables) {
  $region = !empty($variables['attributes']['data-region']) ?
    $variables['attributes']['data-region'] : FALSE;
  $variables['attributes'] = ['class' => ['sbs-layout__item']];

  if ($region) {
    $variables['attributes']['class'][] = Html::getClass('sbs-layout__item--' . $region);
  }
}