1	<?php
2
3	declare(strict_types=1);
4
5	namespace Drupal\display_builder_page_layout\EventSubscriber;
6
7	use Drupal\Core\Entity\EntityTypeManagerInterface;
8	use Drupal\Core\Plugin\CachedDiscoveryClearerInterface;
9	use Drupal\display_builder\Event\DisplayBuilderEvent;
10	use Drupal\display_builder\Event\DisplayBuilderEvents;
11	use Drupal\display_builder_page_layout\Entity\PageLayout;
12	use Symfony\Component\EventDispatcher\EventSubscriberInterface;
13
14	/**
15	* The event subscriber for display builder islands.
16	*/
17	class DisplayBuilderSubscriber implements EventSubscriberInterface {
18
19	public function __construct(
20	private CachedDiscoveryClearerInterface $pluginCacheClearer,
21	private EntityTypeManagerInterface $entityTypeManager,
22	) {}
23
24	/**
25	* {@inheritdoc}
26	*/
27	public static function getSubscribedEvents(): array {
28	return [
29	DisplayBuilderEvents::ON_SAVE => 'onSave',
30	];
31	}
32
33	/**
34	* Event handler for when a display builder is saved.
35	*
36	* @param \Drupal\display_builder\Event\DisplayBuilderEvent $event
37	*   The event object.
38	*/
39	public function onSave(DisplayBuilderEvent $event): void {
40	$builder_id = $event->getBuilderId();
41	$contexts = $event->getData();
42	$params = PageLayout::checkInstanceId($builder_id);
43
44	if (!$params) {
45	return;
46	}
47
48	// Context requirements is set to allow SourcePlugin when editing. We need
49	// a precedence when saving.
50	// @todo perhaps we need a third context.
51	/** @var \Drupal\display_builder\InstanceInterface $instance */
52	$instance = $this->entityTypeManager->getStorage('display_builder_instance')->load($builder_id);
53
54	if (!$instance->hasSaveContextsRequirement(PageLayout::getContextRequirement(), $contexts)) {
55	return;
56	}
57	$page_layout_id = $params['page_layout'] ?? NULL;
58
59	if (!$page_layout_id) {
60	// This must never happen because PageLayout::checkInstanceId() always
61	// return a page_layout key.
62	return;
63	}
64	/** @var \Drupal\display_builder_page_layout\PageLayoutInterface $page_layout */
65	$page_layout = $this->entityTypeManager->getStorage('page_layout')->load($page_layout_id);
66	$page_layout->saveSources();
67	// Clearing plugin cache seems enough to get the new layout.
68	// @todo It looks very costly. Check if it is still needed.
69	$this->pluginCacheClearer->clearCachedDefinitions();
70	}
71
72	}

---

Paths

Below are the source code lines that represent each code path as identified by Xdebug. Please note a path is not necessarily coterminous with a line, a line may contain multiple paths and therefore show up more than once. Please also be aware that some paths may include implicit rather than explicit branches, e.g. an if statement always has an else as part of its logical flow even if you didn't write one.

DisplayBuilderSubscriber->__construct

19	public function __construct(
20	private CachedDiscoveryClearerInterface $pluginCacheClearer,
21	private EntityTypeManagerInterface $entityTypeManager,
22	) {}

DisplayBuilderSubscriber->getSubscribedEvents

29	DisplayBuilderEvents::ON_SAVE => 'onSave',

DisplayBuilderSubscriber->onSave

39	public function onSave(DisplayBuilderEvent $event): void {
40	$builder_id = $event->getBuilderId();
41	$contexts = $event->getData();
42	$params = PageLayout::checkInstanceId($builder_id);
43
44	if (!$params) {
45	return;

39	public function onSave(DisplayBuilderEvent $event): void {
40	$builder_id = $event->getBuilderId();
41	$contexts = $event->getData();
42	$params = PageLayout::checkInstanceId($builder_id);
43
44	if (!$params) {
52	$instance = $this->entityTypeManager->getStorage('display_builder_instance')->load($builder_id);
53
54	if (!$instance->hasSaveContextsRequirement(PageLayout::getContextRequirement(), $contexts)) {
55	return;

39	public function onSave(DisplayBuilderEvent $event): void {
40	$builder_id = $event->getBuilderId();
41	$contexts = $event->getData();
42	$params = PageLayout::checkInstanceId($builder_id);
43
44	if (!$params) {
52	$instance = $this->entityTypeManager->getStorage('display_builder_instance')->load($builder_id);
53
54	if (!$instance->hasSaveContextsRequirement(PageLayout::getContextRequirement(), $contexts)) {
57	$page_layout_id = $params['page_layout'] ?? NULL;
58
59	if (!$page_layout_id) {
62	return;

39	public function onSave(DisplayBuilderEvent $event): void {
40	$builder_id = $event->getBuilderId();
41	$contexts = $event->getData();
42	$params = PageLayout::checkInstanceId($builder_id);
43
44	if (!$params) {
52	$instance = $this->entityTypeManager->getStorage('display_builder_instance')->load($builder_id);
53
54	if (!$instance->hasSaveContextsRequirement(PageLayout::getContextRequirement(), $contexts)) {
57	$page_layout_id = $params['page_layout'] ?? NULL;
58
59	if (!$page_layout_id) {
65	$page_layout = $this->entityTypeManager->getStorage('page_layout')->load($page_layout_id);
66	$page_layout->saveSources();
67	// Clearing plugin cache seems enough to get the new layout.
68	// @todo It looks very costly. Check if it is still needed.
69	$this->pluginCacheClearer->clearCachedDefinitions();
70	}