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class MediaThumbnailFormatter in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/media/src/Plugin/Field/FieldFormatter/MediaThumbnailFormatter.php \Drupal\media\Plugin\Field\FieldFormatter\MediaThumbnailFormatter
  2. 10 core/modules/media/src/Plugin/Field/FieldFormatter/MediaThumbnailFormatter.php \Drupal\media\Plugin\Field\FieldFormatter\MediaThumbnailFormatter

Plugin implementation of the 'media_thumbnail' formatter.

Plugin annotation


@FieldFormatter(
  id = "media_thumbnail",
  label = @Translation("Thumbnail"),
  field_types = {
    "entity_reference"
  }
)

Hierarchy

Expanded class hierarchy of MediaThumbnailFormatter

File

core/modules/media/src/Plugin/Field/FieldFormatter/MediaThumbnailFormatter.php, line 28

Namespace

Drupal\media\Plugin\Field\FieldFormatter
View source 
class MediaThumbnailFormatter extends ImageFormatter {

  /**
   * The renderer service.
   *
   * @var \Drupal\Core\Render\RendererInterface
   */
  protected $renderer;

  /**
   * Constructs an MediaThumbnailFormatter object.
   *
   * @param string $plugin_id
   *   The plugin_id for the formatter.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The definition of the field to which the formatter is associated.
   * @param array $settings
   *   The formatter settings.
   * @param string $label
   *   The formatter label display setting.
   * @param string $view_mode
   *   The view mode.
   * @param array $third_party_settings
   *   Any third party settings settings.
   * @param \Drupal\Core\Session\AccountInterface $current_user
   *   The current user.
   * @param \Drupal\image\ImageStyleStorageInterface $image_style_storage
   *   The image style entity storage handler.
   * @param \Drupal\Core\Render\RendererInterface $renderer
   *   The renderer service.
   */
  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, AccountInterface $current_user, ImageStyleStorageInterface $image_style_storage, RendererInterface $renderer) {
    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings, $current_user, $image_style_storage);
    $this->renderer = $renderer;
  }

  /**
   * {@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('current_user'), $container
      ->get('entity_type.manager')
      ->getStorage('image_style'), $container
      ->get('renderer'));
  }

  /**
   * {@inheritdoc}
   *
   * This has to be overridden because FileFormatterBase expects $item to be
   * of type \Drupal\file\Plugin\Field\FieldType\FileItem and calls
   * isDisplayed() which is not in FieldItemInterface.
   */
  protected function needsEntityLoad(EntityReferenceItem $item) {
    return !$item
      ->hasNewEntity();
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $element = parent::settingsForm($form, $form_state);
    $link_types = [
      'content' => $this
        ->t('Content'),
      'media' => $this
        ->t('Media item'),
    ];
    $element['image_link']['#options'] = $link_types;
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    $summary = parent::settingsSummary();
    $link_types = [
      'content' => $this
        ->t('Linked to content'),
      'media' => $this
        ->t('Linked to media item'),
    ];

    // Display this setting only if image is linked.
    $image_link_setting = $this
      ->getSetting('image_link');
    if (isset($link_types[$image_link_setting])) {
      $summary[] = $link_types[$image_link_setting];
    }
    return $summary;
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    $media_items = $this
      ->getEntitiesToView($items, $langcode);

    // Early opt-out if the field is empty.
    if (empty($media_items)) {
      return $elements;
    }
    $image_style_setting = $this
      ->getSetting('image_style');

    /** @var \Drupal\media\MediaInterface[] $media_items */
    foreach ($media_items as $delta => $media) {
      $elements[$delta] = [
        '#theme' => 'image_formatter',
        '#item' => $media
          ->get('thumbnail')
          ->first(),
        '#item_attributes' => [],
        '#image_style' => $this
          ->getSetting('image_style'),
        '#url' => $this
          ->getMediaThumbnailUrl($media, $items
          ->getEntity()),
      ];

      // Add cacheability of each item in the field.
      $this->renderer
        ->addCacheableDependency($elements[$delta], $media);
    }

    // Add cacheability of the image style setting.
    if ($this
      ->getSetting('image_link') && ($image_style = $this->imageStyleStorage
      ->load($image_style_setting))) {
      $this->renderer
        ->addCacheableDependency($elements, $image_style);
    }
    return $elements;
  }

  /**
   * {@inheritdoc}
   */
  public static function isApplicable(FieldDefinitionInterface $field_definition) {

    // This formatter is only available for entity types that reference
    // media items.
    return $field_definition
      ->getFieldStorageDefinition()
      ->getSetting('target_type') == 'media';
  }

  /**
   * Get the URL for the media thumbnail.
   *
   * @param \Drupal\media\MediaInterface $media
   *   The media item.
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity that the field belongs to.
   *
   * @return \Drupal\Core\Url|null
   *   The URL object for the media item or null if we don't want to add
   *   a link.
   */
  protected function getMediaThumbnailUrl(MediaInterface $media, EntityInterface $entity) {
    $url = NULL;
    $image_link_setting = $this
      ->getSetting('image_link');

    // Check if the formatter involves a link.
    if ($image_link_setting == 'content') {
      if (!$entity
        ->isNew()) {
        $url = $entity
          ->toUrl();
      }
    }
    elseif ($image_link_setting === 'media') {
      $url = $media
        ->toUrl();
    }
    return $url;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
EntityReferenceFormatterBase::prepareView public function Loads the entities referenced in that field across all the entities being viewed. Overrides FormatterBase::prepareView
EntityReferenceFormatterBase::view public function Overrides FormatterBase::view
FileFormatterBase::checkAccess protected function Checks access to the given entity. Overrides EntityReferenceFormatterBase::checkAccess
FormatterBase::$fieldDefinition protected property The field definition.
FormatterBase::$label protected property The label display setting.
FormatterBase::$settings protected property The formatter settings. Overrides PluginSettingsBase::$settings
FormatterBase::$viewMode protected property The view mode.
FormatterBase::getFieldSetting protected function Returns the value of a field setting.
FormatterBase::getFieldSettings protected function Returns the array of field settings.
ImageFormatter::$currentUser protected property The current user.
ImageFormatter::$imageStyleStorage protected property The image style entity storage.
ImageFormatter::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides PluginSettingsBase::calculateDependencies
ImageFormatter::defaultSettings public static function Defines the default settings for this plugin. Overrides PluginSettingsBase::defaultSettings 1
ImageFormatter::onDependencyRemoval public function Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsBase::onDependencyRemoval
ImageFormatterBase::getEntitiesToView protected function Returns the referenced entities for display. Overrides EntityReferenceFormatterBase::getEntitiesToView
MediaThumbnailFormatter::$renderer protected property The renderer service.
MediaThumbnailFormatter::create public static function Creates an instance of the plugin. Overrides ImageFormatter::create
MediaThumbnailFormatter::getMediaThumbnailUrl protected function Get the URL for the media thumbnail.
MediaThumbnailFormatter::isApplicable public static function Returns if the formatter can be used for the provided field. Overrides FormatterBase::isApplicable
MediaThumbnailFormatter::needsEntityLoad protected function This has to be overridden because FileFormatterBase expects $item to be of type \Drupal\file\Plugin\Field\FieldType\FileItem and calls isDisplayed() which is not in FieldItemInterface. Overrides FileFormatterBase::needsEntityLoad
MediaThumbnailFormatter::settingsForm public function Returns a form to configure settings for the formatter. Overrides ImageFormatter::settingsForm
MediaThumbnailFormatter::settingsSummary public function Returns a short summary for the current formatter settings. Overrides ImageFormatter::settingsSummary
MediaThumbnailFormatter::viewElements public function Builds a renderable array for a field value. Overrides ImageFormatter::viewElements
MediaThumbnailFormatter::__construct public function Constructs an MediaThumbnailFormatter object. Overrides ImageFormatter::__construct
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginSettingsBase::$defaultSettingsMerged protected property Whether default settings have been merged into the current $settings.
PluginSettingsBase::$thirdPartySettings protected property The plugin settings injected by third party modules.
PluginSettingsBase::getSetting public function Returns the value of a setting, or its default value if absent. Overrides PluginSettingsInterface::getSetting
PluginSettingsBase::getSettings public function Returns the array of settings, including defaults for missing settings. Overrides PluginSettingsInterface::getSettings
PluginSettingsBase::getThirdPartyProviders public function Gets the list of third parties that store information. Overrides ThirdPartySettingsInterface::getThirdPartyProviders
PluginSettingsBase::getThirdPartySetting public function Gets the value of a third-party setting. Overrides ThirdPartySettingsInterface::getThirdPartySetting
PluginSettingsBase::getThirdPartySettings public function Gets all third-party settings of a given module. Overrides ThirdPartySettingsInterface::getThirdPartySettings
PluginSettingsBase::mergeDefaults protected function Merges default settings values into $settings.
PluginSettingsBase::setSetting public function Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings public function Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting public function Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting public function Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.