aleph1.co.uk Git - yaffs-website/blob - web/core/profiles/demo_umami/themes/umami/umami.theme

   1 <?php
   2
   3 /**
   4  * @file
   5  * Functions to support theming in the Umami theme.
   6  */
   7
   8 use Drupal\Component\Utility\Html;
   9 use Drupal\Core\Form\FormStateInterface;
  10 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
  11
  12 /**
  13  * Implements hook_preprocess_HOOK() for HTML document templates.
  14  *
  15  * Adds body classes if certain regions have content.
  16  */
  17 function umami_preprocess_html(&$variables) {
  18   // Add a sidebar class if the sidebar has content in it.
  19   if (!empty($variables['page']['sidebar'])) {
  20     $variables['attributes']['class'][] = 'two-columns';
  21     $variables['#attached']['library'][] = 'umami/two-columns';
  22   }
  23   else {
  24     $variables['attributes']['class'][] = 'one-column';
  25   }
  26 }
  27
  28 /**
  29  * Implements hook_preprocess_field().
  30  */
  31 function umami_preprocess_field(&$variables, $hook) {
  32   $element = $variables['element'];
  33   // Add class to label and items fields to be styled using the meta styles.
  34   if (isset($element['#field_name'])) {
  35     if (
  36       $element['#field_name'] == 'field_recipe_category' ||
  37       $element['#field_name'] == 'field_tags' ||
  38       $element['#field_name'] == 'field_difficulty') {
  39       $variables['attributes']['class'] = 'label-items';
  40     }
  41   }
  42 }
  43
  44 /**
  45  * Implements hook_preprocess_block().
  46  */
  47 function umami_preprocess_block(&$variables) {
  48   $variables['title_attributes']['class'][] = 'block__title';
  49   // Add a class indicating the custom block bundle.
  50   if (isset($variables['elements']['content']['#block_content'])) {
  51     $variables['attributes']['class'][] = Html::getClass('block-type-' . $variables['elements']['content']['#block_content']->bundle());
  52   }
  53 }
  54
  55 /**
  56  * Implements hook_theme_suggestions_HOOK_alter() for form templates.
  57  */
  58 function umami_theme_suggestions_block_alter(array &$suggestions, array $variables) {
  59   // Block suggestions for custom block bundles.
  60   if (isset($variables['elements']['content']['#block_content'])) {
  61     array_splice($suggestions, 1, 0, 'block__bundle__' . $variables['elements']['content']['#block_content']->bundle());
  62   }
  63 }
  64
  65 /**
  66  * Implements hook_preprocess_breadcrumb().
  67  */
  68 function umami_preprocess_breadcrumb(&$variables) {
  69   // We are creating a variable for the Current Page Title, to allow us to print
  70   // it after the breadcrumbs loop has run.
  71   $request = \Drupal::request();
  72   if ($route = $request->attributes->get(RouteObjectInterface::ROUTE_OBJECT)) {
  73     // Search page titles aren't resolved using the title_resolver service - it
  74     // will always return 'Search' instead of 'Search for [term]', which would
  75     // give us a breadcrumb of Home >> Search >> Search.
  76     // @see https://www.drupal.org/project/drupal/issues/2359901
  77     // @see https://www.drupal.org/project/drupal/issues/2403359
  78     if (($entity = $request->attributes->get('entity')) && $entity->getEntityTypeId() === 'search_page') {
  79       $variables['current_page_title'] = $entity->getPlugin()->suggestedTitle();
  80     }
  81     else {
  82       $variables['current_page_title'] = \Drupal::service('title_resolver')->getTitle($request, $route);
  83     }
  84   }
  85   // Since we are printing the 'Current Page Title', add the URL cache context.
  86   // If we don't, then we might end up with something like
  87   // "Home > Articles" on the Recipes page, which should read "Home > Recipes".
  88   $variables['#cache']['contexts'][] = 'url';
  89 }
  90
  91 /**
  92  * Implements hook_form_FORM_ID_alter().
  93  */
  94 function umami_form_search_block_form_alter(&$form, FormStateInterface $form_state) {
  95   $form['keys']['#attributes']['placeholder'] = t('Search by keyword, ingredient, dish');
  96 }