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1<?php
2
3declare(strict_types=1);
4
5namespace Drupal\display_builder_page_layout\Plugin\DisplayVariant;
6
7use Drupal\Core\Display\Attribute\PageDisplayVariant;
8use Drupal\Core\Extension\ExtensionList;
9use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
10use Drupal\Core\Render\Plugin\DisplayVariant\SimplePageVariant;
11use Drupal\Core\StringTranslation\TranslatableMarkup;
12use Drupal\Core\Theme\Registry;
13use Symfony\Component\DependencyInjection\ContainerInterface;
14
15/**
16 * A variant for pages managed by Display Builder Page Layout.
17 */
18#[PageDisplayVariant(
19  id: 'display_builder_full',
20  admin_label: new TranslatableMarkup('Full page Display Builder')
21)]
22class FullPageBuilderPageVariant extends SimplePageVariant implements ContainerFactoryPluginInterface {
23
24  /**
25   * The theme registry.
26   */
27  protected Registry $themeRegistry;
28
29  /**
30   * The list of modules.
31   */
32  protected ExtensionList $modules;
33
34  public function __construct(
35    array $configuration,
36    $plugin_id,
37    $plugin_definition,
38    Registry $theme_registry,
39    ExtensionList $modules,
40  ) {
41    parent::__construct($configuration, $plugin_id, $plugin_definition);
42    $this->themeRegistry = $theme_registry;
43    $this->modules = $modules;
44  }
45
46  /**
47   * {@inheritdoc}
48   */
49  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): static {
50    return new static(
51      $configuration,
52      $plugin_id,
53      $plugin_definition,
54      $container->get('theme.registry'),
55      $container->get('extension.list.module'),
56    );
57  }
58
59  /**
60   * {@inheritdoc}
61   *
62   * @see \Drupal\display_builder_page_layout\Hook\PageLayoutHook
63   */
64  public function build() {
65    $build = parent::build();
66    $build['#page_variant'] = 'display_builder_full';
67
68    // We alter the registry here instead of implementing
69    // hook_theme_registry_alter in order keep the alteration specific to each
70    // page.
71    $theme_registry = $this->themeRegistry->get();
72    $template_uri = $this->modules->getPath('display_builder_page_layout') . '/templates';
73    $runtime = $this->themeRegistry->getRuntime();
74    $theme_registry['page']['path'] = $template_uri;
75    $runtime->set('page', $theme_registry['page']);
76
77    return $build;
78  }
79
80}

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