Contains \Drupal\edit\MetadataGenerator.
<?php
/**
* @file
* Contains \Drupal\edit\MetadataGenerator.
*/
namespace Drupal\edit;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Component\Plugin\PluginManagerInterface;
use Drupal\field\Plugin\Core\Entity\FieldInstance;
use Drupal\edit\Access\EditEntityFieldAccessCheckInterface;
/**
* Generates in-place editing metadata for an entity field.
*/
class MetadataGenerator implements MetadataGeneratorInterface {
/**
* An object that checks if a user has access to edit a given entity field.
*
* @var \Drupal\edit\Access\EditEntityFieldAccessCheckInterface
*/
protected $accessChecker;
/**
* An object that determines which editor to attach to a given field.
*
* @var \Drupal\edit\EditorSelectorInterface
*/
protected $editorSelector;
/**
* The manager for editor plugins.
*
* @var \Drupal\Component\Plugin\PluginManagerInterface
*/
protected $editorManager;
/**
* Constructs a new MetadataGenerator.
*
* @param \Drupal\edit\Access\EditEntityFieldAccessCheckInterface $access_checker
* An object that checks if a user has access to edit a given field.
* @param \Drupal\edit\EditorSelectorInterface $editor_selector
* An object that determines which editor to attach to a given field.
* @param \Drupal\Component\Plugin\PluginManagerInterface
* The manager for editor plugins.
*/
public function __construct(EditEntityFieldAccessCheckInterface $access_checker, EditorSelectorInterface $editor_selector, PluginManagerInterface $editor_manager) {
$this->accessChecker = $access_checker;
$this->editorSelector = $editor_selector;
$this->editorManager = $editor_manager;
}
/**
* Implements \Drupal\edit\MetadataGeneratorInterface::generate().
*/
public function generate(EntityInterface $entity, FieldInstance $instance, $langcode, $view_mode) {
$field_name = $instance['field_name'];
// Early-return if user does not have access.
$access = $this->accessChecker
->accessEditEntityField($entity, $field_name);
if (!$access) {
return array(
'access' => FALSE,
);
}
// Early-return if no editor is available.
$formatter_id = entity_get_render_display($entity, $view_mode)
->getFormatter($instance['field_name'])
->getPluginId();
$items = $entity
->getTranslation($langcode, FALSE)
->get($field_name)
->getValue();
$editor_id = $this->editorSelector
->getEditor($formatter_id, $instance, $items);
if (!isset($editor_id)) {
return array(
'access' => FALSE,
);
}
// Gather metadata, allow the editor to add additional metadata of its own.
$label = $instance['label'];
$editor = $this->editorManager
->createInstance($editor_id);
$metadata = array(
'label' => check_plain($label),
'access' => TRUE,
'editor' => $editor_id,
'aria' => t('Entity @type @id, field @field', array(
'@type' => $entity
->entityType(),
'@id' => $entity
->id(),
'@field' => $label,
)),
);
$custom_metadata = $editor
->getMetadata($instance, $items);
if (count($custom_metadata)) {
$metadata['custom'] = $custom_metadata;
}
return $metadata;
}
}
Name | Description |
---|---|
MetadataGenerator | Generates in-place editing metadata for an entity field. |