BlockComponentRenderArraySubscriber.php in Layout Builder Styles 8
File
src/EventSubscriber/BlockComponentRenderArraySubscriber.phpView source
<?php
namespace Drupal\layout_builder_styles\EventSubscriber;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\layout_builder\Event\SectionComponentBuildRenderArrayEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Drupal\layout_builder\LayoutBuilderEvents;
/**
* Class BlockComponentRenderArraySubscriber.
*/
class BlockComponentRenderArraySubscriber implements EventSubscriberInterface {
/**
* The entity type manager.
*
* @var \Drupal\Core\Entity\EntityTypeManagerInterface
*/
protected $entityTypeManager;
/**
* Drupal\Core\Config\ConfigFactoryInterface definition.
*
* @var \Drupal\Core\Config\ConfigFactoryInterface
*/
protected $configFactory;
/**
* BlockComponentRenderArraySubscriber constructor.
*
* @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
* The entity type manager.
* @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
* Access configuration.
*/
public function __construct(EntityTypeManagerInterface $entityTypeManager, ConfigFactoryInterface $config_factory) {
$this->entityTypeManager = $entityTypeManager;
$this->configFactory = $config_factory;
}
/**
* {@inheritdoc}
*/
public static function getSubscribedEvents() {
// Layout Builder also subscribes to this event to build the initial render
// array. We use a higher weight so that we execute after it.
$events[LayoutBuilderEvents::SECTION_COMPONENT_BUILD_RENDER_ARRAY] = [
'onBuildRender',
50,
];
return $events;
}
/**
* Add each component's block styles to the render array.
*
* @param \Drupal\layout_builder\Event\SectionComponentBuildRenderArrayEvent $event
* The section component render event.
*/
public function onBuildRender(SectionComponentBuildRenderArrayEvent $event) {
$build = $event
->getBuild();
// This shouldn't happen - Layout Builder should have already created the
// initial build data.
if (empty($build)) {
return;
}
$selectedStyles = $event
->getComponent()
->get('layout_builder_styles_style');
if ($selectedStyles) {
// Convert single selection to an array for consistent processing.
if (!is_array($selectedStyles)) {
$selectedStyles = [
$selectedStyles,
];
}
// Pass the selected style(s) to the render array so we can use the data
// when adding block theme suggestions.
// See layout_builder_styles_theme_suggestions_block_alter().
$build['#layout_builder_style'] = $selectedStyles;
// Retrieve all styles from selection(s).
$grouped_classes = [];
if (!isset($build['#attributes']['class']) || !is_array($build['#attributes']['class'])) {
$build['#attributes']['class'] = [];
}
foreach ($selectedStyles as $styleId) {
// Account for incorrectly configured component configuration which may
// have a NULL style ID. We cannot pass NULL to the storage handler or
// it will throw an exception.
if (empty($styleId)) {
continue;
}
/** @var \Drupal\layout_builder_styles\LayoutBuilderStyleInterface $style */
$style = $this->entityTypeManager
->getStorage('layout_builder_style')
->load($styleId);
if ($style) {
$classes = \preg_split('(\\r\\n|\\r|\\n)', $style
->getClasses());
$grouped_classes = array_merge($grouped_classes, $classes);
$build['#attributes']['class'] = array_merge($build['#attributes']['class'], $grouped_classes);
$build['#cache']['tags'][] = 'config:layout_builder_styles.style.' . $style
->id();
}
}
$event
->setBuild($build);
}
}
}
Classes
Name![]() |
Description |
---|---|
BlockComponentRenderArraySubscriber | Class BlockComponentRenderArraySubscriber. |