hdbt_subtheme.theme

<?php

/**
 * @file
 * Functions to support theming in the HDBT Subtheme.
 */

declare(strict_types=1);

/**
 * Implements hook_preprocess_HOOK().
 */
function hdbt_subtheme_preprocess_block(&$variables) {
  if (isset($variables['elements']['#id'])) {
    $variables['content']['#attributes']['block_id'] = $variables['elements']['#id'];
  }
}

/**
 * Implements hook_theme_suggestions_HOOK_alter().
 */
function hdbt_subtheme_theme_suggestions_block_alter(&$suggestions) {
  // Load theme suggestions for blocks from parent theme.
  foreach ($suggestions as &$suggestion) {
    $suggestion = str_replace('hdbt_subtheme_', '', $suggestion);
  }
}

/**
 * Implements hook_theme_suggestions_HOOK_alter().
 */
function hdbt_subtheme_theme_suggestions_menu_alter(&$suggestions, $variables) {
  if (isset($variables['attributes']['block_id'])) {
    $block_id = str_replace('hdbt_subtheme_', '', $variables['attributes']['block_id']);

    $suggestions[] = match ($block_id) {
      'mobile_navigation' => 'menu__mobile',
      'mainnavigation' => 'menu__main__desktop',
      'main_navigation_level_2' => 'menu__main__sidebar',
      'brandingnavigation' => 'menu__main__branding',
      default => 'menu__' . $variables['attributes']['block_id'],
    };
  }
}

/**
 * Implements hook_preprocess_HOOK().
 */
function hdbt_subtheme_preprocess_menu(&$variables): void {
  // Menu, mobile menu, fallback menu and sidebar menu tree depth.
  // Counting from "instance", "main level", "level 3", "level 4", "level 5"...
  $menu_depth = 6;
  $variables['menu_depth'] = $menu_depth;
  $variables['#attached']['drupalSettings']['menu_depth'] = $menu_depth;
}