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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Drupal\display_builder_page_layout\Plugin\DisplayVariant; |
| 6 | |
| 7 | use Drupal\Component\Render\MarkupInterface; |
| 8 | use Drupal\Core\Cache\CacheableMetadata; |
| 9 | use Drupal\Core\Display\Attribute\PageDisplayVariant; |
| 10 | use Drupal\Core\Display\PageVariantInterface; |
| 11 | use Drupal\Core\Display\VariantBase; |
| 12 | use Drupal\Core\Entity\EntityTypeManagerInterface; |
| 13 | use Drupal\Core\Extension\ExtensionList; |
| 14 | use Drupal\Core\Plugin\ContainerFactoryPluginInterface; |
| 15 | use Drupal\Core\StringTranslation\TranslatableMarkup; |
| 16 | use Drupal\Core\Theme\Registry; |
| 17 | use Drupal\display_builder\DisplayBuilderHelpers; |
| 18 | use Drupal\ui_patterns\Element\ComponentElementBuilder; |
| 19 | use Symfony\Component\DependencyInjection\ContainerInterface; |
| 20 | |
| 21 | /** |
| 22 | * A variant for pages managed by Display Builder Page Layout. |
| 23 | */ |
| 24 | #[PageDisplayVariant( |
| 25 | id: 'display_builder', |
| 26 | admin_label: new TranslatableMarkup('Display Builder page') |
| 27 | )] |
| 28 | class DisplayBuilderPageVariant extends VariantBase implements ContainerFactoryPluginInterface, PageVariantInterface { |
| 29 | |
| 30 | private const SOURCE_CONTENT_ID = 'main_page_content'; |
| 31 | |
| 32 | private const SOURCE_TITLE_ID = 'page_title'; |
| 33 | |
| 34 | /** |
| 35 | * The render array representing the main content. |
| 36 | */ |
| 37 | protected array $mainContent; |
| 38 | |
| 39 | /** |
| 40 | * The page title. |
| 41 | * |
| 42 | * Can be a string (plain title), Markup or a render array (formatted title). |
| 43 | */ |
| 44 | protected array|MarkupInterface|string $title; |
| 45 | |
| 46 | /** |
| 47 | * Component element builder. |
| 48 | */ |
| 49 | protected ComponentElementBuilder $componentElementBuilder; |
| 50 | |
| 51 | /** |
| 52 | * The entity type manager. |
| 53 | */ |
| 54 | protected EntityTypeManagerInterface $entityTypeManager; |
| 55 | |
| 56 | /** |
| 57 | * The theme registry. |
| 58 | */ |
| 59 | protected Registry $themeRegistry; |
| 60 | |
| 61 | /** |
| 62 | * The list of modules. |
| 63 | */ |
| 64 | protected ExtensionList $modules; |
| 65 | |
| 66 | public function __construct( |
| 67 | array $configuration, |
| 68 | $plugin_id, |
| 69 | $plugin_definition, |
| 70 | ComponentElementBuilder $component_element_builder, |
| 71 | EntityTypeManagerInterface $entity_type_manager, |
| 72 | Registry $theme_registry, |
| 73 | ExtensionList $modules, |
| 74 | ) { |
| 75 | parent::__construct($configuration, $plugin_id, $plugin_definition); |
| 76 | $this->componentElementBuilder = $component_element_builder; |
| 77 | $this->entityTypeManager = $entity_type_manager; |
| 78 | $this->themeRegistry = $theme_registry; |
| 79 | $this->modules = $modules; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * {@inheritdoc} |
| 84 | */ |
| 85 | public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): static { |
| 86 | return new static( |
| 87 | $configuration, |
| 88 | $plugin_id, |
| 89 | $plugin_definition, |
| 90 | $container->get('ui_patterns.component_element_builder'), |
| 91 | $container->get('entity_type.manager'), |
| 92 | $container->get('theme.registry'), |
| 93 | $container->get('extension.list.module'), |
| 94 | ); |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * {@inheritdoc} |
| 99 | */ |
| 100 | public function build(): array { |
| 101 | /** @var \Drupal\display_builder_page_layout\AccessControlHandler $access_control */ |
| 102 | $access_control = $this->entityTypeManager->getAccessControlHandler('page_layout'); |
| 103 | $page_layout = $access_control->loadCurrentPageLayout(); |
| 104 | |
| 105 | if (!$page_layout) { |
| 106 | // This is not supposed to happen. PageVariantSubscriber must not load |
| 107 | // this plugin, and fallback to Block Layout if there is no suitable |
| 108 | // Page Layout entities. |
| 109 | // @todo raise an error |
| 110 | return []; |
| 111 | } |
| 112 | |
| 113 | // We alter the registry here instead of implementing |
| 114 | // hook_theme_registry_alter in order keep the alteration specific to each |
| 115 | // page. |
| 116 | $theme_registry = $this->themeRegistry->get(); |
| 117 | $template_uri = $this->modules->getPath('display_builder_page_layout') . '/templates'; |
| 118 | $runtime = $this->themeRegistry->getRuntime(); |
| 119 | $theme_registry['page']['path'] = $template_uri; |
| 120 | $runtime->set('page', $theme_registry['page']); |
| 121 | $theme_registry['region']['path'] = $template_uri; |
| 122 | $runtime->set('region', $theme_registry['region']); |
| 123 | |
| 124 | // Also skip the related template suggestions. |
| 125 | foreach (\array_keys($theme_registry) as $renderable_id) { |
| 126 | if (\str_starts_with($renderable_id, 'page__') || \str_starts_with($renderable_id, 'region__')) { |
| 127 | $runtime->delete($renderable_id); |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | $sources = $page_layout->getSources(); |
| 132 | $instance_id = $page_layout->getInstanceId(); |
| 133 | $this->replaceTitleAndContent($sources, $this->title, $this->mainContent); |
| 134 | |
| 135 | /** @var \Drupal\display_builder\InstanceInterface $instance */ |
| 136 | $instance = $this->entityTypeManager->getStorage('display_builder_instance')->load($instance_id); |
| 137 | $contexts = $instance->getContexts() ?? []; |
| 138 | $data = []; |
| 139 | |
| 140 | foreach ($sources as $source) { |
| 141 | $build = $this->componentElementBuilder->buildSource($data, 'content', [], $source, $contexts); |
| 142 | $data[] = $build['#slots']['content'][0] ?? []; |
| 143 | } |
| 144 | |
| 145 | $cache = new CacheableMetadata(); |
| 146 | $cache->addCacheableDependency($this); |
| 147 | // See also: PageLayout::postSave(). |
| 148 | // See also: PageVariantSubscriber::onSelectPageDisplayVariant() |
| 149 | $cache->addCacheTags($page_layout->getCacheTags()); |
| 150 | |
| 151 | $build = [ |
| 152 | 'display_builder_content' => [ |
| 153 | 'data' => $data, |
| 154 | '#weight' => -800, |
| 155 | ], |
| 156 | ]; |
| 157 | $cache->applyTo($build); |
| 158 | |
| 159 | return $build; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * {@inheritdoc} |
| 164 | */ |
| 165 | public function setMainContent(array $main_content): self { |
| 166 | $this->mainContent = $main_content; |
| 167 | |
| 168 | return $this; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * {@inheritdoc} |
| 173 | */ |
| 174 | public function setTitle($title): self { |
| 175 | $this->title = $title; |
| 176 | |
| 177 | return $this; |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * Replace title and content blocks. |
| 182 | * |
| 183 | * @param array $data |
| 184 | * The Display Builder data to alter. |
| 185 | * @param mixed $title |
| 186 | * The title to set. |
| 187 | * @param array|null $content |
| 188 | * The content to set. |
| 189 | * |
| 190 | * @todo replace multiple in one pass? |
| 191 | */ |
| 192 | private function replaceTitleAndContent(array &$data, mixed $title, ?array $content): void { |
| 193 | if ($content !== NULL) { |
| 194 | DisplayBuilderHelpers::findArrayReplaceSource($data, ['source_id' => self::SOURCE_CONTENT_ID], $content); |
| 195 | } |
| 196 | |
| 197 | // Try to handle specific title cases. |
| 198 | if (\is_string($title)) { |
| 199 | $title = $title; |
| 200 | } |
| 201 | elseif ($title instanceof MarkupInterface) { |
| 202 | $title = (string) $title; |
| 203 | } |
| 204 | elseif (isset($title['#markup'])) { |
| 205 | $title = $title['#markup']; |
| 206 | } |
| 207 | |
| 208 | if ($title !== NULL && \is_string($title)) { |
| 209 | // @todo avoid arbitrary classes. |
| 210 | $title = ['#markup' => '<h1 class="title page-title">' . $title . '</h1>']; |
| 211 | DisplayBuilderHelpers::findArrayReplaceSource($data, ['source_id' => self::SOURCE_TITLE_ID], $title); |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | } |