a12s-1.0.0-beta7/modules/page_context/a12s_page_context.module

<?php

/**
 * @file
 * Primary module hooks for A12s Page Context module.
 */

use Drupal\a12s_page_context\Entity\PageContextForm;
use Drupal\Core\Config\Entity\ConfigEntityInterface;
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityFormInterface;
use Drupal\Core\Form\FormStateInterface;

// @todo add an alter hook on "a12s_page_context_form" deletion, in
//   order to update all child records which use overrides. All direct children
//   should have their "override" state removed and their values updated with
//   the current values of the entity being deleted.

/**
 * Alter the theme settings.
 *
 * @see hook_form_system_theme_settings_alter()
 */
function a12s_page_context_form_system_theme_settings_alter(array &$form, FormStateInterface $form_state): void {
  if ($theme = $form_state->getBuildInfo()['args'][0] ?? '') {
    $context = ['theme' => $theme];
    PageContextForm::alterForm('theme', $context, $form, $form_state);
  }
}

/**
 * Implements hook_form_alter().
 */
function a12s_page_context_form_alter(array &$form, FormStateInterface $form_state, $form_id): void {
  if ($form_state->getFormObject() instanceof EntityFormInterface) {
    $entity = $form_state->getFormObject()->getEntity();
    $pluginType = NULL;
    $context = ['form_id' => $form_id];

    if ($entity instanceof ContentEntityInterface) {
      $pluginType = 'entity';
      $context['entity'] = $entity;
    }
    elseif ($entity instanceof ConfigEntityInterface) {
      if ($definition = \Drupal::entityTypeManager()->getDefinition($entity->getEntityTypeId())) {
        $pluginType = 'entity_type';
        $context['entity_type'] = $definition->getBundleOf();
        $context['bundle'] = $entity->id();
      }
    }

    if (isset($pluginType)) {
      PageContextForm::alterForm($pluginType, $context, $form, $form_state);
    }
  }
}