class QuickEditFieldForm in Zircon Profile 8

Builds and process a form for editing a single entity field.

Hierarchy

• class \Drupal\Core\Form\FormBase implements ContainerInjectionInterface, FormInterface uses DependencySerializationTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
  • class \Drupal\quickedit\Form\QuickEditFieldForm

File

core/modules/quickedit/src/Form/QuickEditFieldForm.php, line 25

Contains \Drupal\quickedit\Form\QuickEditFieldForm.

Namespace

Drupal\quickedit\Form

class QuickEditFieldForm extends FormBase {

  /**
   * Stores the tempstore factory.
   *
   * @var \Drupal\user\PrivateTempStoreFactory
   */
  protected $tempStoreFactory;

  /**
   * The module handler.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;

  /**
   * The node type storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $nodeTypeStorage;

  /**
   * The typed data validator.
   *
   * @var \Symfony\Component\Validator\Validator\ValidatorInterface
   */
  protected $validator;

  /**
   * Constructs a new EditFieldForm.
   *
   * @param \Drupal\user\PrivateTempStoreFactory $temp_store_factory
   *   The tempstore factory.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler.
   * @param \Drupal\Core\Entity\EntityStorageInterface $node_type_storage
   *   The node type storage.
   * @param \Symfony\Component\Validator\Validator\ValidatorInterface $validator
   *   The typed data validator service.
   */
  public function __construct(PrivateTempStoreFactory $temp_store_factory, ModuleHandlerInterface $module_handler, EntityStorageInterface $node_type_storage, ValidatorInterface $validator) {
    $this->moduleHandler = $module_handler;
    $this->nodeTypeStorage = $node_type_storage;
    $this->tempStoreFactory = $temp_store_factory;
    $this->validator = $validator;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('user.private_tempstore'), $container
      ->get('module_handler'), $container
      ->get('entity.manager')
      ->getStorage('node_type'), $container
      ->get('typed_data_manager')
      ->getValidator());
  }

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'quickedit_field_form';
  }

  /**
   * {@inheritdoc}
   *
   * Builds a form for a single entity field.
   */
  public function buildForm(array $form, FormStateInterface $form_state, EntityInterface $entity = NULL, $field_name = NULL) {
    if (!$form_state
      ->has('entity')) {
      $this
        ->init($form_state, $entity, $field_name);
    }

    // Add the field form.
    $form_state
      ->get('form_display')
      ->buildForm($entity, $form, $form_state);

    // Add a dummy changed timestamp field to attach form errors to.
    if ($entity instanceof EntityChangedInterface) {
      $form['changed_field'] = array(
        '#type' => 'hidden',
        '#value' => $entity
          ->getChangedTime(),
      );
    }

    // Add a submit button. Give it a class for easy JavaScript targeting.
    $form['actions'] = array(
      '#type' => 'actions',
    );
    $form['actions']['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save'),
      '#attributes' => array(
        'class' => array(
          'quickedit-form-submit',
        ),
      ),
    );

    // Simplify it for optimal in-place use.
    $this
      ->simplify($form, $form_state);
    return $form;
  }

  /**
   * Initialize the form state and the entity before the first form build.
   */
  protected function init(FormStateInterface $form_state, EntityInterface $entity, $field_name) {

    // @todo Rather than special-casing $node->revision, invoke prepareEdit()
    //   once https://www.drupal.org/node/1863258 lands.
    if ($entity
      ->getEntityTypeId() == 'node') {
      $node_type = $this->nodeTypeStorage
        ->load($entity
        ->bundle());
      $entity
        ->setNewRevision($node_type
        ->isNewRevision());
      $entity->revision_log = NULL;
    }
    $form_state
      ->set('entity', $entity);
    $form_state
      ->set('field_name', $field_name);

    // Fetch the display used by the form. It is the display for the 'default'
    // form mode, with only the current field visible.
    $display = EntityFormDisplay::collectRenderDisplay($entity, 'default');
    foreach ($display
      ->getComponents() as $name => $options) {
      if ($name != $field_name) {
        $display
          ->removeComponent($name);
      }
    }
    $form_state
      ->set('form_display', $display);
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    $entity = $this
      ->buildEntity($form, $form_state);
    $form_state
      ->get('form_display')
      ->validateFormValues($entity, $form, $form_state);
  }

  /**
   * {@inheritdoc}
   *
   * Saves the entity with updated values for the edited field.
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $entity = $this
      ->buildEntity($form, $form_state);
    $form_state
      ->set('entity', $entity);

    // Store entity in tempstore with its UUID as tempstore key.
    $this->tempStoreFactory
      ->get('quickedit')
      ->set($entity
      ->uuid(), $entity);
  }

  /**
   * Returns a cloned entity containing updated field values.
   *
   * Calling code may then validate the returned entity, and if valid, transfer
   * it back to the form state and save it.
   */
  protected function buildEntity(array $form, FormStateInterface $form_state) {

    /** @var $entity \Drupal\Core\Entity\EntityInterface */
    $entity = clone $form_state
      ->get('entity');
    $field_name = $form_state
      ->get('field_name');
    $form_state
      ->get('form_display')
      ->extractFormValues($entity, $form, $form_state);

    // @todo Refine automated log messages and abstract them to all entity
    //   types: https://www.drupal.org/node/1678002.
    if ($entity
      ->getEntityTypeId() == 'node' && $entity
      ->isNewRevision() && $entity->revision_log
      ->isEmpty()) {
      $entity->revision_log = t('Updated the %field-name field through in-place editing.', array(
        '%field-name' => $entity
          ->get($field_name)
          ->getFieldDefinition()
          ->getLabel(),
      ));
    }
    return $entity;
  }

  /**
   * Simplifies the field edit form for in-place editing.
   *
   * This function:
   * - Hides the field label inside the form, because JavaScript displays it
   *   outside the form.
   * - Adjusts textarea elements to fit their content.
   *
   * @param array &$form
   *   A reference to an associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   */
  protected function simplify(array &$form, FormStateInterface $form_state) {
    $field_name = $form_state
      ->get('field_name');
    $widget_element =& $form[$field_name]['widget'];

    // Hide the field label from displaying within the form, because JavaScript
    // displays the equivalent label that was provided within an HTML data
    // attribute of the field's display element outside of the form. Do this for
    // widgets without child elements (like Option widgets) as well as for ones
    // with per-delta elements. Skip single checkboxes, because their title is
    // key to their UI. Also skip widgets with multiple subelements, because in
    // that case, per-element labeling is informative.
    $num_children = count(Element::children($widget_element));
    if ($num_children == 0 && $widget_element['#type'] != 'checkbox') {
      $widget_element['#title_display'] = 'invisible';
    }
    if ($num_children == 1 && isset($widget_element[0]['value'])) {

      // @todo While most widgets name their primary element 'value', not all
      //   do, so generalize this.
      $widget_element[0]['value']['#title_display'] = 'invisible';
    }

    // Adjust textarea elements to fit their content.
    if (isset($widget_element[0]['value']['#type']) && $widget_element[0]['value']['#type'] == 'textarea') {
      $lines = count(explode("\n", $widget_element[0]['value']['#default_value']));
      $widget_element[0]['value']['#rows'] = $lines + 1;
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
FormBase::$configFactory	protected	property	The config factory.	3
FormBase::$loggerFactory	protected	property	The logger factory.
FormBase::$requestStack	protected	property	The request stack.	1
FormBase::$routeMatch	protected	property	The route match.
FormBase::config	protected	function	Retrieves a configuration object.
FormBase::configFactory	protected	function	Gets the config factory for this form.	3
FormBase::container	private	function	Returns the service container.
FormBase::currentUser	protected	function	Gets the current user.
FormBase::getRequest	protected	function	Gets the request object.
FormBase::getRouteMatch	protected	function	Gets the route match.
FormBase::logger	protected	function	Gets the logger for a specific channel.
FormBase::resetConfigFactory	public	function	Resets the configuration factory.
FormBase::setConfigFactory	public	function	Sets the config factory for this form.
FormBase::setRequestStack	public	function	Sets the request stack object to use.
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator	protected	function	Returns the link generator.
LinkGeneratorTrait::l	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator	public	function	Sets the link generator service.
QuickEditFieldForm::$moduleHandler	protected	property	The module handler.
QuickEditFieldForm::$nodeTypeStorage	protected	property	The node type storage.
QuickEditFieldForm::$tempStoreFactory	protected	property	Stores the tempstore factory.
QuickEditFieldForm::$validator	protected	property	The typed data validator.
QuickEditFieldForm::buildEntity	protected	function	Returns a cloned entity containing updated field values.
QuickEditFieldForm::buildForm	public	function	Builds a form for a single entity field. Overrides FormInterface::buildForm
QuickEditFieldForm::create	public static	function	Instantiates a new instance of this class. Overrides FormBase::create
QuickEditFieldForm::getFormId	public	function	Returns a unique string identifying the form. Overrides FormInterface::getFormId
QuickEditFieldForm::init	protected	function	Initialize the form state and the entity before the first form build.
QuickEditFieldForm::simplify	protected	function	Simplifies the field edit form for in-place editing.
QuickEditFieldForm::submitForm	public	function	Saves the entity with updated values for the edited field. Overrides FormInterface::submitForm
QuickEditFieldForm::validateForm	public	function	Form validation handler. Overrides FormBase::validateForm
QuickEditFieldForm::__construct	public	function	Constructs a new EditFieldForm.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator	protected	function	Returns the URL generator service.
UrlGeneratorTrait::redirect	protected	function	Returns a redirect response object for the specified route.
UrlGeneratorTrait::setUrlGenerator	public	function	Sets the URL generator service.
UrlGeneratorTrait::url	protected	function	Generates a URL or path for a specific route based on the given parameters.