+<?php
+
+namespace Drupal\blazy\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\field\FieldConfigInterface;
+use Drupal\file\Plugin\Field\FieldFormatter\FileFormatterBase;
+use Drupal\blazy\BlazyFormatterManager;
+use Drupal\blazy\Dejavu\BlazyDefault;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Base class for blazy/slick image, and file ER formatters.
+ *
+ * Defines one base class to extend for both image and file ER formatters as
+ * otherwise different base classes: ImageFormatterBase or FileFormatterBase.
+ *
+ * @see Drupal\blazy\Plugin\Field\FieldFormatter\BlazyFormatter.
+ * @see Drupal\blazy\Plugin\Field\FieldFormatter\BlazyFileFormatter.
+ * @see Drupal\slick\Plugin\Field\FieldFormatter\SlickImageFormatter.
+ * @see Drupal\slick\Plugin\Field\FieldFormatter\SlickFileFormatter.
+ */
+abstract class BlazyFileFormatterBase extends FileFormatterBase implements ContainerFactoryPluginInterface {
+
+ /**
+ * The blazy manager service.
+ *
+ * @var \Drupal\blazy\BlazyFormatterManager
+ */
+ protected $blazyManager;
+
+ /**
+ * Constructs a BlazyFormatter object.
+ */
+ public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, BlazyFormatterManager $blazy_manager) {
+ parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings);
+ $this->blazyManager = $blazy_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static(
+ $plugin_id,
+ $plugin_definition,
+ $configuration['field_definition'],
+ $configuration['settings'],
+ $configuration['label'],
+ $configuration['view_mode'],
+ $configuration['third_party_settings'],
+ $container->get('blazy.formatter.manager')
+ );
+ }
+
+ /**
+ * Returns the blazy manager.
+ */
+ public function blazyManager() {
+ return $this->blazyManager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function defaultSettings() {
+ return BlazyDefault::imageSettings() + BlazyDefault::gridSettings();
+ }
+
+ /**
+ * Builds the settings.
+ */
+ public function buildSettings() {
+ $settings = $this->getSettings();
+ $settings['plugin_id'] = $this->getPluginId();
+
+ return $settings;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function settingsForm(array $form, FormStateInterface $form_state) {
+ $element = [];
+ $definition = $this->getScopedFormElements();
+
+ $definition['_views'] = isset($form['field_api_classes']);
+ if (!empty($definition['_views'])) {
+ $view = $form_state->get('view');
+ // Disables problematic options for GridStack plugin since GridStack
+ // will not work with Responsive image, and has its own breakpoints.
+ if ($view->getExecutable()->getStyle()->getPluginId() == 'gridstack') {
+ $definition['breakpoints'] = $definition['ratio'] = FALSE;
+ $definition['responsive_image'] = FALSE;
+ $definition['no_ratio'] = TRUE;
+ }
+ }
+
+ $this->admin()->buildSettingsForm($element, $definition);
+
+ return $element;
+ }
+
+ /**
+ * Defines the scope for the form elements.
+ */
+ public function getScopedFormElements() {
+ $field = $this->fieldDefinition;
+ $entity_type = $field->getTargetEntityTypeId();
+ $target_type = $this->getFieldSetting('target_type');
+ $multiple = $field->getFieldStorageDefinition()->isMultiple();
+
+ return [
+ 'background' => TRUE,
+ 'box_captions' => TRUE,
+ 'breakpoints' => BlazyDefault::getConstantBreakpoints(),
+ 'captions' => ['title' => $this->t('Title'), 'alt' => $this->t('Alt')],
+ 'current_view_mode' => $this->viewMode,
+ 'entity_type' => $entity_type,
+ 'field_name' => $field->getName(),
+ 'field_type' => $field->getType(),
+ 'grid_form' => $multiple,
+ 'image_style_form' => TRUE,
+ 'media_switch_form' => TRUE,
+ 'namespace' => 'blazy',
+ 'plugin_id' => $this->getPluginId(),
+ 'settings' => $this->getSettings(),
+ 'style' => $multiple,
+ 'target_type' => $target_type,
+ 'thumbnail_style' => TRUE,
+ ];
+ }
+
+ /**
+ * Overrides parent::needsEntityLoad().
+ *
+ * One step back to have both image and file ER plugins extend this, because
+ * EntityReferenceItem::isDisplayed() doesn't exist, except for ImageItem
+ * which is always TRUE anyway for type image and file ER.
+ */
+ protected function needsEntityLoad(EntityReferenceItem $item) {
+ return !$item->hasNewEntity();
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * A clone of Drupal\image\Plugin\Field\FieldFormatter\ImageFormatterBase so
+ * to have one base class to extend for both image and file ER formatters.
+ */
+ protected function getEntitiesToView(EntityReferenceFieldItemListInterface $items, $langcode) {
+ // Add the default image if the type is image.
+ if ($items->isEmpty() && $this->fieldDefinition->getType() === 'image') {
+ $default_image = $this->getFieldSetting('default_image');
+ // If we are dealing with a configurable field, look in both
+ // instance-level and field-level settings.
+ if (empty($default_image['uuid']) && $this->fieldDefinition instanceof FieldConfigInterface) {
+ $default_image = $this->fieldDefinition->getFieldStorageDefinition()->getSetting('default_image');
+ }
+ if (!empty($default_image['uuid']) && $file = \Drupal::entityManager()->loadEntityByUuid('file', $default_image['uuid'])) {
+ // Clone the FieldItemList into a runtime-only object for the formatter,
+ // so that the fallback image can be rendered without affecting the
+ // field values in the entity being rendered.
+ $items = clone $items;
+ $items->setValue(array(
+ 'target_id' => $file->id(),
+ 'alt' => $default_image['alt'],
+ 'title' => $default_image['title'],
+ 'width' => $default_image['width'],
+ 'height' => $default_image['height'],
+ 'entity' => $file,
+ '_loaded' => TRUE,
+ '_is_default' => TRUE,
+ ));
+ $file->_referringItem = $items[0];
+ }
+ }
+
+ return parent::getEntitiesToView($items, $langcode);
+ }
+
+}