Add extra classes to region

bootstrap_barrio.theme

@@ -304,9 +304,19 @@ function bootstrap_barrio_preprocess_node(&$variables) {
  * Implements hook_preprocess_HOOK() for region.html.twig.
  */
 function bootstrap_barrio_preprocess_region(&$variables) {
-  // Add a clearfix class to system branding blocks.
+  $nowrap = [
+    'breadcrumb',
+    'content',
+    'primary_menu',
+    'header',
+    'sidebar_first',
+    'sidebar_second',
+  ];
   if (theme_get_setting('bootstrap_barrio_region_class_' . $variables['elements']['#region']) !== NULL) {
-    $variables['region_classes'] = theme_get_setting('bootstrap_barrio_region_class_' . $variables['elements']['#region']);
+    $variables['attributes']['class'][] = theme_get_setting('bootstrap_barrio_region_class_' . $variables['elements']['#region']);
+  }
+  elseif (!in_array($variables['elements']['#region'], $nowrap)) {
+    $variables['attributes']['class'][] = 'row';
   }
 }
 

theme-settings.php

@@ -124,7 +124,7 @@ function bootstrap_barrio_form_system_theme_settings_alter(&$form, FormStateInte
     $form['layout']['region'][$name]['bootstrap_barrio_region_class_' . $name] = array(
       '#type' => 'textfield',
       '#title' => t('Classes for @description region', array('@description' => $description)),
-      '#default_value' => theme_get_setting('bootstrap_barrio_region_class_' . $name),
+      '#default_value' => $region_class,
       '#size' => 40,
       '#maxlength' => 40,
     );