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<?php
namespace Drupal\imagefield_tokens\Plugin\Field\FieldFormatter;
use Drupal\Component\Plugin\Exception\ContextException;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Render\BubbleableMetadata;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Url;
use Drupal\image\Plugin\Field\FieldFormatter\ImageFormatter;
use Drupal\Core\Routing\CurrentRouteMatch;
use Drupal\token\Token;
use Symfony\Component\DependencyInjection\ContainerInterface;
class ImageFieldTokensFormatter extends ImageFormatter {
protected $currentUser;
protected $imageStyleStorage;
protected $routeMatch;
protected $tokenService;
public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, AccountInterface $current_user, EntityStorageInterface $image_style_storage, CurrentRouteMatch $routeMatch, Token $tokenService) {
parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings, $current_user, $image_style_storage);
$this->routeMatch = $routeMatch;
$this->tokenService = $tokenService;
}
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($plugin_id, $plugin_definition, $configuration['field_definition'], $configuration['settings'], $configuration['label'], $configuration['view_mode'], $configuration['third_party_settings'], $container
->get('current_user'), $container
->get('entity_type.manager')
->getStorage('image_style'), $container
->get('current_route_match'), $container
->get('token'));
}
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = [];
$entity = NULL;
$files = $this
->getEntitiesToView($items, $langcode);
if (empty($files)) {
return $elements;
}
$url = NULL;
$image_link_setting = $this
->getSetting('image_link');
if ($image_link_setting === 'content') {
$entity = $items
->getEntity();
if (!$entity
->isNew()) {
$url = $entity
->toUrl();
}
}
elseif ($image_link_setting === 'file') {
$link_file = TRUE;
}
$image_style_setting = $this
->getSetting('image_style');
$base_cache_tags = [];
if (!empty($image_style_setting)) {
$image_style = $this->imageStyleStorage
->load($image_style_setting);
$base_cache_tags = $image_style
->getCacheTags();
}
foreach ($files as $delta => $file) {
$cache_contexts = [];
if (isset($link_file)) {
$image_uri = $file
->getFileUri();
$url = Url::fromUri(file_create_url($image_uri));
$cache_contexts[] = 'url.site';
}
$cache_tags = Cache::mergeTags($base_cache_tags, $file
->getCacheTags());
$item = $file->_referringItem;
$item_attributes = $item->_attributes;
unset($item->_attributes);
$item_values = $item
->getValue();
$request_params = $this->routeMatch
->getParameters()
->all();
if (count($request_params) > 0) {
foreach ($request_params as $param) {
if (is_object($param)) {
$entity = $param;
}
}
}
$data = [];
if ($entity) {
try {
$entity_type = method_exists($entity, 'getEntityTypeId') ? $entity
->getEntityTypeId() : $entity
->getContext('entity')
->getContextData()
->getValue('entity')
->getEntityTypeId();
$data[$entity_type] = $entity;
} catch (ContextException $e) {
}
}
$alt_bubbles = new BubbleableMetadata();
$alt_token = $this->tokenService
->replace($item_values['alt'], $data, [], $alt_bubbles);
$title_bubbles = new BubbleableMetadata();
$title_token = $this->tokenService
->replace($item_values['title'], $data, [], $title_bubbles);
$item_values['alt'] = $alt_token;
$item_values['title'] = $title_token;
$item
->setValue($item_values);
$elements[$delta] = [
'#theme' => 'image_formatter',
'#item' => $item,
'#item_attributes' => $item_attributes,
'#image_style' => $image_style_setting,
'#url' => $url,
'#cache' => [
'tags' => $cache_tags,
'contexts' => $cache_contexts,
],
];
$existing_elements_cache = CacheableMetadata::createFromRenderArray($elements[$delta]);
$token_bubbleable_metadata = $alt_bubbles
->merge($title_bubbles);
$updated_elements_cache = $existing_elements_cache
->merge($token_bubbleable_metadata);
$updated_elements_cache
->applyTo($elements[$delta]);
}
return $elements;
}
}