BigPipeResponseAttachmentsProcessor.php in Drupal 8
File
core/modules/big_pipe/src/Render/BigPipeResponseAttachmentsProcessor.php
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<?php
namespace Drupal\big_pipe\Render;
use Drupal\Core\Asset\AssetCollectionRendererInterface;
use Drupal\Core\Asset\AssetResolverInterface;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Form\EnforcedResponseException;
use Drupal\Core\Render\AttachmentsInterface;
use Drupal\Core\Render\AttachmentsResponseProcessorInterface;
use Drupal\Core\Render\HtmlResponse;
use Drupal\Core\Render\HtmlResponseAttachmentsProcessor;
use Drupal\Core\Render\RendererInterface;
use Symfony\Component\HttpFoundation\RequestStack;
class BigPipeResponseAttachmentsProcessor extends HtmlResponseAttachmentsProcessor {
protected $htmlResponseAttachmentsProcessor;
public function __construct(AttachmentsResponseProcessorInterface $html_response_attachments_processor, AssetResolverInterface $asset_resolver, ConfigFactoryInterface $config_factory, AssetCollectionRendererInterface $css_collection_renderer, AssetCollectionRendererInterface $js_collection_renderer, RequestStack $request_stack, RendererInterface $renderer, ModuleHandlerInterface $module_handler) {
$this->htmlResponseAttachmentsProcessor = $html_response_attachments_processor;
parent::__construct($asset_resolver, $config_factory, $css_collection_renderer, $js_collection_renderer, $request_stack, $renderer, $module_handler);
}
public function processAttachments(AttachmentsInterface $response) {
assert($response instanceof HtmlResponse);
try {
$response = $this
->renderPlaceholders($response);
} catch (EnforcedResponseException $e) {
return $e
->getResponse();
}
$attachments = $response
->getAttachments();
$big_pipe_placeholders = [];
$big_pipe_nojs_placeholders = [];
if (isset($attachments['big_pipe_placeholders'])) {
$big_pipe_placeholders = $attachments['big_pipe_placeholders'];
unset($attachments['big_pipe_placeholders']);
}
if (isset($attachments['big_pipe_nojs_placeholders'])) {
$big_pipe_nojs_placeholders = $attachments['big_pipe_nojs_placeholders'];
unset($attachments['big_pipe_nojs_placeholders']);
}
$html_response = clone $response;
$html_response
->setAttachments($attachments);
$processed_html_response = $this->htmlResponseAttachmentsProcessor
->processAttachments($html_response);
$attachments = $processed_html_response
->getAttachments();
$big_pipe_response = clone $processed_html_response;
if (count($big_pipe_placeholders)) {
$attachments['big_pipe_placeholders'] = $big_pipe_placeholders;
}
if (count($big_pipe_nojs_placeholders)) {
$attachments['big_pipe_nojs_placeholders'] = $big_pipe_nojs_placeholders;
}
$big_pipe_response
->setAttachments($attachments);
return $big_pipe_response;
}
}