EditorFileReference.php
Same filename in other branches
Namespace
Drupal\editor\Plugin\FilterFile
-
core/
modules/ editor/ src/ Plugin/ Filter/ EditorFileReference.php
View source
<?php
namespace Drupal\editor\Plugin\Filter;
use Drupal\Component\Utility\Html;
use Drupal\Core\Entity\EntityRepositoryInterface;
use Drupal\Core\Image\ImageFactory;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\file\FileInterface;
use Drupal\filter\FilterProcessResult;
use Drupal\filter\Plugin\FilterBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Provides a filter to track images uploaded via a Text Editor.
*
* Generates file URLs and associates the cache tags of referenced files.
*
* @Filter(
* id = "editor_file_reference",
* title = @Translation("Track images uploaded via a Text Editor"),
* description = @Translation("Ensures that the latest versions of images uploaded via a Text Editor are displayed."),
* type = Drupal\filter\Plugin\FilterInterface::TYPE_TRANSFORM_REVERSIBLE
* )
*/
class EditorFileReference extends FilterBase implements ContainerFactoryPluginInterface {
/**
* The entity repository.
*
* @var \Drupal\Core\Entity\EntityRepositoryInterface
*/
protected $entityRepository;
/**
* The image factory.
*
* @var \Drupal\Core\Image\ImageFactory
*/
protected $imageFactory;
/**
* Constructs a \Drupal\editor\Plugin\Filter\EditorFileReference object.
*
* @param array $configuration
* A configuration array containing information about the plugin instance.
* @param string $plugin_id
* The plugin_id for the plugin instance.
* @param mixed $plugin_definition
* The plugin implementation definition.
* @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
* The entity repository.
* @param \Drupal\Core\Image\ImageFactory $image_factory
* The image factory.
*/
public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityRepositoryInterface $entity_repository, ImageFactory $image_factory = NULL) {
$this->entityRepository = $entity_repository;
if ($image_factory === NULL) {
@trigger_error('Calling ' . __METHOD__ . '() without the $image_factory argument is deprecated in drupal:9.1.0 and is required in drupal:10.0.0. See https://www.drupal.org/node/3173719', E_USER_DEPRECATED);
$image_factory = \Drupal::service('image.factory');
}
$this->imageFactory = $image_factory;
parent::__construct($configuration, $plugin_id, $plugin_definition);
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($configuration, $plugin_id, $plugin_definition, $container->get('entity.repository'), $container->get('image.factory'));
}
/**
* {@inheritdoc}
*/
public function process($text, $langcode) {
$result = new FilterProcessResult($text);
if (stristr($text, 'data-entity-type="file"') !== FALSE) {
$dom = Html::load($text);
$xpath = new \DOMXPath($dom);
$processed_uuids = [];
foreach ($xpath->query('//*[@data-entity-type="file" and @data-entity-uuid]') as $node) {
$uuid = $node->getAttribute('data-entity-uuid');
// If there is a 'src' attribute, set it to the file entity's current
// URL. This ensures the URL works even after the file location changes.
if ($node->hasAttribute('src')) {
$file = $this->entityRepository
->loadEntityByUuid('file', $uuid);
if ($file instanceof FileInterface) {
$node->setAttribute('src', $file->createFileUrl());
if ($node->nodeName == 'img') {
// Without dimensions specified, layout shifts can occur,
// which are more noticeable on pages that take some time to load.
// As a result, only mark images as lazy load that have dimensions.
$image = $this->imageFactory
->get($file->getFileUri());
$width = $image->getWidth();
$height = $image->getHeight();
if ($width !== NULL && $height !== NULL) {
if (!$node->hasAttribute('width')) {
$node->setAttribute('width', $width);
}
if (!$node->hasAttribute('height')) {
$node->setAttribute('height', $height);
}
if (!$node->hasAttribute('loading')) {
$node->setAttribute('loading', 'lazy');
}
}
}
}
}
// Only process the first occurrence of each file UUID.
if (!isset($processed_uuids[$uuid])) {
$processed_uuids[$uuid] = TRUE;
$file = $this->entityRepository
->loadEntityByUuid('file', $uuid);
if ($file instanceof FileInterface) {
$result->addCacheTags($file->getCacheTags());
}
}
}
$result->setProcessedText(Html::serialize($dom));
}
return $result;
}
}
Classes
Title | Deprecated | Summary |
---|---|---|
EditorFileReference | Provides a filter to track images uploaded via a Text Editor. |
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.