AjaxResponseAttachmentsProcessor.php in Drupal 9
File
core/lib/Drupal/Core/Ajax/AjaxResponseAttachmentsProcessor.php
View source
<?php
namespace Drupal\Core\Ajax;
use Drupal\Core\Asset\AssetCollectionRendererInterface;
use Drupal\Core\Asset\AssetResolverInterface;
use Drupal\Core\Asset\AttachedAssets;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Render\AttachmentsInterface;
use Drupal\Core\Render\AttachmentsResponseProcessorInterface;
use Drupal\Core\Render\RendererInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
class AjaxResponseAttachmentsProcessor implements AttachmentsResponseProcessorInterface {
protected $assetResolver;
protected $config;
protected $cssCollectionRenderer;
protected $jsCollectionRenderer;
protected $requestStack;
protected $renderer;
protected $moduleHandler;
public function __construct(AssetResolverInterface $asset_resolver, ConfigFactoryInterface $config_factory, AssetCollectionRendererInterface $css_collection_renderer, AssetCollectionRendererInterface $js_collection_renderer, RequestStack $request_stack, RendererInterface $renderer, ModuleHandlerInterface $module_handler) {
$this->assetResolver = $asset_resolver;
$this->config = $config_factory
->get('system.performance');
$this->cssCollectionRenderer = $css_collection_renderer;
$this->jsCollectionRenderer = $js_collection_renderer;
$this->requestStack = $request_stack;
$this->renderer = $renderer;
$this->moduleHandler = $module_handler;
}
public function processAttachments(AttachmentsInterface $response) {
if (!$response instanceof AjaxResponse) {
throw new \InvalidArgumentException('\\Drupal\\Core\\Ajax\\AjaxResponse instance expected.');
}
$request = $this->requestStack
->getCurrentRequest();
if ($response
->getContent() == '{}') {
$response
->setData($this
->buildAttachmentsCommands($response, $request));
}
return $response;
}
protected function buildAttachmentsCommands(AjaxResponse $response, Request $request) {
$ajax_page_state = $request->request
->get('ajax_page_state');
$optimize_css = !defined('MAINTENANCE_MODE') && $this->config
->get('css.preprocess');
$optimize_js = !defined('MAINTENANCE_MODE') && $this->config
->get('js.preprocess');
$attachments = $response
->getAttachments();
$assets = new AttachedAssets();
$assets
->setLibraries(isset($attachments['library']) ? $attachments['library'] : [])
->setAlreadyLoadedLibraries(isset($ajax_page_state['libraries']) ? explode(',', $ajax_page_state['libraries']) : [])
->setSettings(isset($attachments['drupalSettings']) ? $attachments['drupalSettings'] : []);
$css_assets = $this->assetResolver
->getCssAssets($assets, $optimize_css);
list($js_assets_header, $js_assets_footer) = $this->assetResolver
->getJsAssets($assets, $optimize_js);
$attachments['library'] = $assets
->getLibraries();
$attachments['drupalSettings'] = $assets
->getSettings();
$response
->setAttachments($attachments);
$settings = [];
if (isset($js_assets_header['drupalSettings'])) {
$settings = $js_assets_header['drupalSettings']['data'];
unset($js_assets_header['drupalSettings']);
}
if (isset($js_assets_footer['drupalSettings'])) {
$settings = $js_assets_footer['drupalSettings']['data'];
unset($js_assets_footer['drupalSettings']);
}
$resource_commands = [];
if ($css_assets) {
$css_render_array = $this->cssCollectionRenderer
->render($css_assets);
$resource_commands[] = new AddCssCommand($this->renderer
->renderPlain($css_render_array));
}
if ($js_assets_header) {
$js_header_render_array = $this->jsCollectionRenderer
->render($js_assets_header);
$resource_commands[] = new PrependCommand('head', $this->renderer
->renderPlain($js_header_render_array));
}
if ($js_assets_footer) {
$js_footer_render_array = $this->jsCollectionRenderer
->render($js_assets_footer);
$resource_commands[] = new AppendCommand('body', $this->renderer
->renderPlain($js_footer_render_array));
}
foreach (array_reverse($resource_commands) as $resource_command) {
$response
->addCommand($resource_command, TRUE);
}
if (!empty($settings)) {
unset($settings['path']);
$response
->addCommand(new SettingsCommand($settings, TRUE), TRUE);
}
$commands = $response
->getCommands();
$this->moduleHandler
->alter('ajax_render', $commands);
return $commands;
}
}