function autosave_form_form_alter in Autosave Form 8

Implements hook_form_alter().

File

./autosave_form.module, line 36

This module holds autosave form functionality.

Code

function autosave_form_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $active_on = \Drupal::configFactory()
    ->get('autosave_form.settings')
    ->get('active_on');
  $form_object = $form_state
    ->getFormObject();
  if ($form_object instanceof ContentEntityFormInterface) {
    if (!$active_on['content_entity_forms']) {
      return;
    }
    $entity = $form_object
      ->getEntity();
    $entity_type_id = $entity
      ->getEntityTypeId();
    $allowed_content_entity_types = \Drupal::configFactory()
      ->get('autosave_form.settings')
      ->get('allowed_content_entity_types');

    // Autosave is enabled if either no restriction has been made or the current
    // entity type is part of the restriction and as well either no restriction
    // on bundle level has been made or the current bundle is part of that
    // restriction.
    if (!empty($allowed_content_entity_types)) {
      if (!isset($allowed_content_entity_types[$entity_type_id]) || !empty($allowed_content_entity_types[$entity_type_id]['bundles']) && !isset($allowed_content_entity_types[$entity_type_id]['bundles'][$entity
        ->bundle()])) {
        return;
      }
    }
  }
  elseif ($form_object instanceof EntityFormInterface) {
    if (!$active_on['config_entity_forms']) {
      return;
    }
  }
  else {
    return;
  }

  // Allow autosave only for entity form routes, as forms might be included in
  // blocks and other places and it is impossible to determine to which URL we
  // have to post the autosave submit to. Also we don't support embedded forms
  // as e.g. it might be surprising for the user getting autosave on the entity
  // view, because e.g. a block is using an entity form.
  $route = \Drupal::routeMatch()
    ->getRouteObject();
  if ($route && ($route_defaults = $route
    ->getDefaults()) && isset($route_defaults['_entity_form'])) {
    list($entity_type_id, $form_op) = explode('.', $route_defaults['_entity_form']);
    $entity = $form_object
      ->getEntity();
    if ($entity
      ->getEntityTypeId() != $entity_type_id || $form_object
      ->getOperation() != $form_op) {
      return;
    }
  }
  else {
    return;
  }
  $entity_type_manager = \Drupal::entityTypeManager();
  if ($entity_type_manager
    ->hasHandler($entity
    ->getEntityTypeId(), 'autosave_form')) {
    $autosave_form_handler = $entity_type_manager
      ->getHandler($entity
      ->getEntityTypeId(), 'autosave_form');
    if ($autosave_form_handler instanceof AutosaveEntityFormHandlerInterface) {
      $autosave_form_handler
        ->formAlter($form, $form_state);
    }
  }
}