ws_small_y-1.0.x-dev/modules/small_y_hero/small_y_hero.module

<?php

/**
 * @file
 * Primary module hooks for small_y_hero module.
 */

use Drupal\Component\Utility\Html;
use Drupal\Core\Form\FormStateInterface;
use Drupal\layout_builder\Form\DefaultsEntityForm;
use Drupal\layout_builder\Form\OverridesEntityForm;

/**
 * Implements hook_theme().
 */
function small_y_hero_theme($existing, $type, $theme, $path)
{
  return [
    'block__lb_hero__variation_tall' => [
      'base hook' => 'block',
      'template' => 'block--lb-hero--variation-tall',
    ],
    'block__lb_hero__variation_sub_chevron' => [
      'base hook' => 'block',
      'template' => 'block--lb-hero--variation-sub-chevron',
    ],
    'block__lb_hero__variation_sub_chevron_no_media' => [
      'base hook' => 'block',
      'template' => 'block--lb-hero--variation-sub-chevron-no-media',
    ],
    'block__lb_hero__variation_sub_frame' => [
      'base hook' => 'block',
      'template' => 'block--lb-hero--variation-sub-frame',
    ],
    'block__lb_hero__variation_promo' => [
      'base hook' => 'block',
      'template' => 'block--lb-hero--variation-promo',
    ],
  ];
}

/**
 * Implements hook_form_alter().
 */
function small_y_hero_form_alter(&$form, FormStateInterface $form_state) {
  $form_object = $form_state->getFormObject();
  if ($form_object instanceof OverridesEntityForm
    || $form_object instanceof DefaultsEntityForm
    || $form_object->getFormId() === 'layout_layout_builder_form') {
    $form['#attached']['library'][] = 'small_y_hero/layout_builder';
  }
}

/**
 * Implements hook_preprocess_HOOK().
 */
function small_y_hero_preprocess_block__lb_hero(&$variables)
{
  $array = preg_grep("/small_y_hero\/background_/", $variables["elements"]["#attached"]["library"]) ?? [];
  if ($background = array_pop($array)) {
    $parts = explode('/', $background);
    $variables['heroBackground'] = Html::cleanCssIdentifier(array_pop($parts));
  };

  $variables['ctaLinkStyle'] = in_array('small_y_hero/background_gray',$variables["elements"]["#attached"]["library"]) ? 'btn-primary' : 'btn-secondary';
}