class DownloadLinkFieldFormatter in Media Entity Download 8

Plugin implementation of the 'media_entity_download_download_link' formatter.

Plugin annotation

@FieldFormatter(
  id = "media_entity_download_download_link",
  label = @Translation("Download link"),
  field_types = {
    "file",
    "image"
  }
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\Core\Field\PluginSettingsBase implements DependentPluginInterface, PluginSettingsInterface
      • class \Drupal\Core\Field\FormatterBase implements FormatterInterface, ContainerFactoryPluginInterface
        • class \Drupal\link\Plugin\Field\FieldFormatter\LinkFormatter implements ContainerFactoryPluginInterface
          • class \Drupal\media_entity_download\Plugin\Field\FieldFormatter\DownloadLinkFieldFormatter

File

src/Plugin/Field/FieldFormatter/DownloadLinkFieldFormatter.php, line 25

Namespace

Drupal\media_entity_download\Plugin\Field\FieldFormatter

class DownloadLinkFieldFormatter extends LinkFormatter {

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    return parent::settingsForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    $parent = $items
      ->getParent()
      ->getValue()
      ->id();
    foreach ($items as $delta => $item) {
      $route_parameters = [
        'media' => $parent,
      ];
      if ($delta > 0) {
        $route_parameters['query']['delta'] = $delta;
      }
      $url = Url::fromRoute('media_entity_download.download', $route_parameters);

      // @todo: replace with DI when this issue is fixed: https://www.drupal.org/node/2053415
      $filename = \Drupal::entityTypeManager()
        ->getStorage('file')
        ->load($item
        ->getValue()['target_id'])
        ->getFilename();
      $elements[$delta] = [
        '#type' => 'link',
        '#url' => $url,
        '#title' => $filename,
      ];
    }
    return $elements;
  }

  /**
   * Generate the output appropriate for one field item.
   *
   * @param \Drupal\Core\Field\FieldItemInterface $item
   *   One field item.
   *
   * @return string
   *   The textual output generated.
   */
  protected function viewValue(FieldItemInterface $item) {

    // The text value has no text format assigned to it, so the user input
    // should equal the output, including newlines.
    return nl2br(Html::escape($item->value));
  }

  /**
   * {@inheritdoc}
   */
  public static function isApplicable(FieldDefinitionInterface $field_definition) {
    return $field_definition
      ->getFieldStorageDefinition()
      ->getTargetEntityTypeId() == 'media';
  }

}

Members

Name	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
DownloadLinkFieldFormatter::isApplicable	public static	function	Returns if the formatter can be used for the provided field. Overrides FormatterBase::isApplicable
DownloadLinkFieldFormatter::settingsForm	public	function	Returns a form to configure settings for the formatter. Overrides LinkFormatter::settingsForm
DownloadLinkFieldFormatter::viewElements	public	function	Builds a renderable array for a field value. Overrides LinkFormatter::viewElements
DownloadLinkFieldFormatter::viewValue	protected	function	Generate the output appropriate for one field item.
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::$viewMode	protected	property	The view mode.
FormatterBase::getFieldSetting	protected	function	Returns the value of a field setting.
FormatterBase::getFieldSettings	protected	function	Returns the array of field settings.
FormatterBase::prepareView	public	function	Allows formatters to load information for field values being displayed. Overrides FormatterInterface::prepareView	2
FormatterBase::view	public	function	Builds a renderable array for a fully themed field. Overrides FormatterInterface::view	1
LinkFormatter::$pathValidator	protected	property	The path validator service.
LinkFormatter::buildUrl	protected	function	Builds the \Drupal\Core\Url object for a link field item.
LinkFormatter::create	public static	function	Creates an instance of the plugin. Overrides FormatterBase::create
LinkFormatter::defaultSettings	public static	function	Defines the default settings for this plugin. Overrides PluginSettingsBase::defaultSettings	1
LinkFormatter::settingsSummary	public	function	Returns a short summary for the current formatter settings. Overrides FormatterBase::settingsSummary
LinkFormatter::__construct	public	function	Constructs a new LinkFormatter. Overrides FormatterBase::__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::calculateDependencies	public	function	Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies	6
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 $settings.
PluginSettingsBase::onDependencyRemoval	public	function	Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval	3
PluginSettingsBase::setSetting	public	function	Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings	public	function	Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting	public	function	Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting	public	function	Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
StringTranslationTrait::$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.