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

<?php

use Drupal\Core\Form\FormStateInterface;


/**
 * Implements hook_theme().
 */
function small_y_ping_pongs_theme($existing, $type, $theme, $path) {
  return [
    'block__ping_pong_section' => [
      'base hook' => 'block',
      'template' => 'block--ping-pong-section',
    ],
  ];
}

/**
 * Implements hook_form_alter().
 */
function small_y_ping_pongs_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  if (in_array($form_id, ['layout_builder_add_block', 'layout_builder_update_block'])) {
    $component_config = $form_id === 'layout_builder_add_block' ?
      $form_state->getStorage()['layout_builder__component']->get('configuration') :
      $form_state->getBuildInfo()['callback_object']->getCurrentComponent()->get('configuration');

    if ($component_config['id'] === 'inline_block:ping_pong_section') {
      $form_key = isset($form['block_form']) ? 'block_form' : 'settings';
      $form[$form_key]['block_form']['#process'][] = '_small_y_ping_pongs_override_block_item';
    }
  }
}

/**
 * Custom #process callback for the block form within the 'Ping Pong Section' block.
 *
 * Modifies the 'field_block_item' element by adding a custom #after_build callback.
 *
 * @param array $element
 *   The form element being processed.
 * @param \Drupal\Core\Form\FormStateInterface $form_state
 *   The current state of the form.
 *
 * @return array
 *   The processed form element.
 */
function _small_y_ping_pongs_override_block_item(array &$element, FormStateInterface $form_state) {
  if (isset($element['field_block_item'])) {
    $element['field_block_item']['widget']['#after_build'][] = '_small_y_ping_pongs_field_content_items_after_build';
  }
  return $element;
}

/**
 * Custom '#after_build' callback for 'Ping Pong items' field.
 *
 * Modifies the 'inline_entity_form' element by hide a few fields.
 *
 * @param array $element
 *   The form element being processed.
 * @param \Drupal\Core\Form\FormStateInterface $form_state
 *   The current state of the form.
 *
 * @return array
 *   The processed form element.
 */
function _small_y_ping_pongs_field_content_items_after_build($element, FormStateInterface $form_state) {
  $fields = [
    'field_title',
    'field_subtitle',
    'field_item_image_position'
  ];
  if (!empty($element['entities'])) {
    foreach ($element['entities'] as $key => &$value) {
      if (is_numeric($key) && isset($value['form'])) {
        foreach ($fields as $field) {
          $value['form']['inline_entity_form'][$field]['#access'] = FALSE;
        }
      }
    }
  }

  if (!empty($element['form'])) {
    foreach ($fields as $field) {
      $element['form']['inline_entity_form'][$field]['#access'] = FALSE;
    }
  }

  return $element;
}

/**
 * Implements hook_inline_entity_form_entity_form_alter().
 */
function small_y_ping_pongs_inline_entity_form_entity_form_alter(array &$entity_form, FormStateInterface $form_state) {
  $entity = $entity_form['#entity'];
  if ($entity->bundle() === 'lb_ping_pong') {
    $user_input = $form_state->getUserInput();
    $block_form = $user_input['settings']['block_form']['field_block_item']['form'] ?? NULL;

    if ($block_form) {
      $result_form = isset($block_form['inline_entity_form']) ?
        reset($block_form['inline_entity_form']['entities'])['form'] :
        reset($block_form);

      $entity->setInfo($result_form['field_item_title']['0']['value']);
    }
  }
}

/**
 * Implements template_preprocess_HOOK().
 */
function small_y_ping_pongs_preprocess_block__ping_pong_section(&$variables) {
  $variables['block_content'] = $variables['elements']['content']['#block_content'];
  $variables['items'] = $variables['block_content']->field_block_item->referencedEntities();
}