function layout_builder_styles_preprocess_layout in Layout Builder Styles 8

Implements hook_preprocess_HOOK().

File

./layout_builder_styles.module, line 235

Layout Builder Styles module file.

Code

function layout_builder_styles_preprocess_layout(&$variables) {

  // Apply a configured style to a layout by adding the style's CSS classes.
  if (isset($variables['settings']['layout_builder_styles_style'])) {
    $selected = $variables['settings']['layout_builder_styles_style'];

    /** @var \Drupal\layout_builder_styles\LayoutBuilderStyleInterface $style */

    // Convert single selection to an array for consistent processing.
    if (!is_array($selected)) {
      $selected = [
        $selected,
      ];
    }

    // Retrieve all styles from selection(s).
    $grouped_classes = [];
    foreach ($selected as $stylename) {

      // Account for incorrectly configured section configuration which may
      // have a NULL style ID. We cannot pass NULL to the storage handler or
      // it will throw an exception.
      if (empty($stylename)) {
        continue;
      }
      if ($layout_style = \Drupal::entityTypeManager()
        ->getStorage('layout_builder_style')
        ->load($stylename)) {
        $classes = \preg_split('(\\r\\n|\\r|\\n)', $layout_style
          ->getClasses());
        $grouped_classes = array_merge($grouped_classes, $classes);
        $variables['#cache']['tags'][] = 'config:layout_builder_styles.style.' . $layout_style
          ->id();
      }
    }
    if (!empty($grouped_classes)) {
      if (!isset($variables['attributes']['class']) || !is_array($variables['attributes']['class'])) {
        $variables['attributes']['class'] = [];
      }
      $variables['attributes']['class'] = array_merge($variables['attributes']['class'], $grouped_classes);
    }
  }
}