protected function ImagePopupFieldFormatter::getFieldOptions in Simple Image Popup 2.x

Find fields on the entity that are valid alt or title text.

Parameters

\Drupal\Core\Form\FormStateInterface $form_state: The form state.

Return value

array The valid fields as $id => $title.

1 call to ImagePopupFieldFormatter::getFieldOptions()

ImagePopupFieldFormatter::getAdditionalImageFields in src/Plugin/Field/FieldFormatter/ImagePopupFieldFormatter.php

Creates alt and title fields for a base image context field.

File

src/Plugin/Field/FieldFormatter/ImagePopupFieldFormatter.php, line 347

Class

ImagePopupFieldFormatter

Plugin implementation of the 'image_popup_field_formatter' formatter.

Namespace

Drupal\image_popup\Plugin\Field\FieldFormatter

Code

protected function getFieldOptions(FormStateInterface $form_state) {

  // The result is kept in $this->fieldOptions so that it only needs to be
  // processed once per instantiation of this class.
  if (!isset($this->fieldOptions)) {
    $this->fieldOptions = [];

    // Discover the entity type and bundle this field is being created for.
    $entity = $form_state
      ->getBuildInfo()['callback_object']
      ->getEntity();
    $entity_type = $entity
      ->getTargetEntityTypeId();
    $bundle = $entity
      ->getTargetBundle();

    // Get all the string fields.
    $field_map = $this->entityFieldManager
      ->getFieldMapByFieldType('string');

    // Find fields from the map that are on this entity type and bundle.
    if (isset($field_map[$entity_type])) {
      $field_ids = array_keys($field_map[$entity_type]);
      $field_definitions = $this->entityFieldManager
        ->getFieldDefinitions($entity_type, $bundle);

      // Provide the entity's string fields as options.
      foreach ($field_ids as $field_id) {
        if (!empty($field_definitions[$field_id])) {
          $this->fieldOptions[$field_id] = $field_definitions[$field_id]
            ->getLabel();
        }
      }
    }
  }
  return $this->fieldOptions;
}