class MediaLibraryTestHooks

class MediaLibraryTestHooks {
    
    /**
     * Implements hook_ENTITY_TYPE_create_access().
     */
    public function mediaCreateAccess(AccountInterface $account, array $context, $entity_bundle) {
        if (isset($context['media_library_state'])) {
            
            /** @var \Drupal\media_library\MediaLibraryState $state */
            $state = $context['media_library_state'];
            return AccessResult::forbiddenIf($state->getSelectedTypeId() === 'deny_access');
        }
        return AccessResult::neutral();
    }
    
    /**
     * Implements hook_entity_field_access().
     */
    public function entityFieldAccess($operation, FieldDefinitionInterface $field_definition, AccountInterface $account, ?FieldItemListInterface $items = NULL) {
        $deny_fields = \Drupal::state()->get('media_library_test_entity_field_access_deny_fields', []);
        // Always deny the field_media_no_access field.
        $deny_fields[] = 'field_media_no_access';
        return AccessResult::forbiddenIf(in_array($field_definition->getName(), $deny_fields, TRUE), 'Field access denied by test module');
    }
    
    /**
     * Implements hook_entity_type_alter().
     */
    public function entityTypeAlter(array &$entity_types) : void {
        if (isset($entity_types['node'])) {
            $entity_types['node']->setFormClass('default', TestNodeFormOverride::class);
            $entity_types['node']->setFormClass('edit', TestNodeFormOverride::class);
        }
    }
    
    /**
     * Implements hook_field_widget_info_alter().
     */
    public function fieldWidgetInfoAlter(array &$info) : void {
        $info['media_library_widget']['field_types'][] = 'entity_reference_subclass';
    }

}