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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Drupal\display_builder_entity_view\Plugin\UiPatterns\Source; |
| 6 | |
| 7 | use Drupal\Core\Entity\Entity\EntityViewDisplay; |
| 8 | use Drupal\Core\Entity\EntityFieldManagerInterface; |
| 9 | use Drupal\Core\Form\FormStateInterface; |
| 10 | use Drupal\Core\Plugin\Context\ContextDefinition; |
| 11 | use Drupal\Core\StringTranslation\TranslatableMarkup; |
| 12 | use Drupal\display_builder\RenderableBuilderTrait; |
| 13 | use Drupal\ui_patterns\Attribute\Source; |
| 14 | use Drupal\ui_patterns\SourcePluginBase; |
| 15 | use Symfony\Component\DependencyInjection\ContainerInterface; |
| 16 | |
| 17 | /** |
| 18 | * Plugin implementation of the source. |
| 19 | */ |
| 20 | #[Source( |
| 21 | id: 'extra_field', |
| 22 | label: new TranslatableMarkup('Extra field'), |
| 23 | description: new TranslatableMarkup('An entity extra field.'), |
| 24 | prop_types: ['slot'], |
| 25 | context_definitions: [ |
| 26 | 'entity' => new ContextDefinition('entity', label: new TranslatableMarkup('Entity'), required: TRUE), |
| 27 | 'view_mode' => new ContextDefinition('string', label: new TranslatableMarkup('View mode'), required: FALSE), |
| 28 | ], |
| 29 | metadata: ['group' => new TranslatableMarkup('Fields')], |
| 30 | )] |
| 31 | class ExtraFieldSource extends SourcePluginBase { |
| 32 | |
| 33 | use RenderableBuilderTrait; |
| 34 | |
| 35 | /** |
| 36 | * The entity field manager. |
| 37 | */ |
| 38 | protected EntityFieldManagerInterface $entityFieldManager; |
| 39 | |
| 40 | /** |
| 41 | * {@inheritdoc} |
| 42 | */ |
| 43 | public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition): static { |
| 44 | $instance = parent::create($container, $configuration, $plugin_id, $plugin_definition); |
| 45 | $instance->entityFieldManager = $container->get('entity_field.manager'); |
| 46 | |
| 47 | return $instance; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * {@inheritdoc} |
| 52 | */ |
| 53 | public function defaultSettings(): array { |
| 54 | return [ |
| 55 | 'field' => NULL, |
| 56 | ]; |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * {@inheritdoc} |
| 61 | */ |
| 62 | public function settingsSummary(): array { |
| 63 | return [ |
| 64 | $this->getDefinitions()[$this->getSetting('field')]['label'] ?? '', |
| 65 | ]; |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * {@inheritdoc} |
| 70 | */ |
| 71 | public function getPropValue(): mixed { |
| 72 | $field = $this->getSetting('field'); |
| 73 | |
| 74 | if (!$field) { |
| 75 | return []; |
| 76 | } |
| 77 | |
| 78 | /** @var \Drupal\Core\Entity\FieldableEntityInterface $entity */ |
| 79 | $entity = $this->getContextValue('entity'); |
| 80 | $view_mode = $this->getContextValue('view_mode') ?? 'default'; |
| 81 | |
| 82 | if (!$entity->id()) { |
| 83 | return $this->renderPlaceholder($field); |
| 84 | } |
| 85 | |
| 86 | $entity_type_id = $entity->getEntityTypeId(); |
| 87 | $display = EntityViewDisplay::collectRenderDisplay($entity, $view_mode); |
| 88 | |
| 89 | // Register the extra field as a component on the display. Implementations |
| 90 | // of hook_entity_view() and hook_ENTITY_TYPE_view() often guard rendering |
| 91 | // with $display->getComponent($field_name), which would silently skip |
| 92 | // the field if it is not enabled in the underlying entity view display. |
| 93 | if (!$display->getComponent($field)) { |
| 94 | $display->setComponent($field); |
| 95 | } |
| 96 | |
| 97 | // Mirror core EntityViewBuilder::buildComponents(): invoke prepare_view |
| 98 | // before the view hooks so implementations can set up their internal state. |
| 99 | // @see \Drupal\Core\Entity\EntityViewBuilder::buildComponents() |
| 100 | $this->moduleHandler->invokeAll('entity_prepare_view', [ |
| 101 | $entity_type_id, |
| 102 | [$entity->id() => $entity], |
| 103 | [$entity->bundle() => $display], |
| 104 | $view_mode, |
| 105 | ]); |
| 106 | |
| 107 | /** @var array<string, mixed> $build */ |
| 108 | $build = []; |
| 109 | |
| 110 | // Invoke both the entity-type-specific and the generic hook so all |
| 111 | // extra-field implementations are reached regardless of which hook they |
| 112 | // use. Core EntityViewBuilder does the same. |
| 113 | // @see \Drupal\Core\Entity\EntityViewBuilder::view() |
| 114 | $this->moduleHandler->invokeAll($entity_type_id . '_view', [&$build, $entity, $display, $view_mode]); |
| 115 | $this->moduleHandler->invokeAll('entity_view', [&$build, $entity, $display, $view_mode]); |
| 116 | |
| 117 | return $build[$field] ?? []; |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * {@inheritdoc} |
| 122 | */ |
| 123 | public function settingsForm(array $form, FormStateInterface $form_state): array { |
| 124 | $options = []; |
| 125 | |
| 126 | foreach ($this->getDefinitions() as $field_name => $definition) { |
| 127 | $options[$field_name] = $definition['label']; |
| 128 | } |
| 129 | $form['field'] = [ |
| 130 | '#type' => 'select', |
| 131 | '#options' => $options, |
| 132 | '#default_value' => $this->getSetting('field'), |
| 133 | ]; |
| 134 | |
| 135 | return $form; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Render placeholder when a proper entity is not loaded. |
| 140 | * |
| 141 | * @param string $field |
| 142 | * Extra field ID. |
| 143 | * |
| 144 | * @return array |
| 145 | * A renderable array. |
| 146 | */ |
| 147 | protected function renderPlaceholder(string $field): array { |
| 148 | $definition = $this->getDefinitions()[$field]; |
| 149 | |
| 150 | if (!$definition) { |
| 151 | return []; |
| 152 | } |
| 153 | |
| 154 | $label = $definition['label'] ?? ''; |
| 155 | $build = $this->buildPlaceholderButton($this->t('Extra field: @field', ['@field' => $label])); |
| 156 | $build['#attributes']['class'][] = 'db-background'; |
| 157 | |
| 158 | return $build; |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * Get extra field definitions. |
| 163 | * |
| 164 | * Extra fields are not plugins but old-fashioned hooks. |
| 165 | * |
| 166 | * @throws \Drupal\Component\Plugin\Exception\ContextException |
| 167 | * |
| 168 | * @return array |
| 169 | * A list of extra field definition. |
| 170 | */ |
| 171 | protected function getDefinitions(): array { |
| 172 | /** @var \Drupal\Core\Entity\FieldableEntityInterface $entity */ |
| 173 | $entity = $this->getContextValue('entity'); |
| 174 | $entity_type_id = $entity->getEntityTypeId(); |
| 175 | $bundle = $entity->bundle(); |
| 176 | |
| 177 | $extra_fields = $this->entityFieldManager->getExtraFields($entity_type_id, $bundle); |
| 178 | |
| 179 | return $extra_fields['display'] ?? []; |
| 180 | } |
| 181 | |
| 182 | } |