You are here

Home » API reference » Drupal 9 » BaseFieldFileFormatterBase.php

abstract class BaseFieldFileFormatterBase in Drupal 9

Same name and namespace in other branches
  1. 8 core/modules/file/src/Plugin/Field/FieldFormatter/BaseFieldFileFormatterBase.php \Drupal\file\Plugin\Field\FieldFormatter\BaseFieldFileFormatterBase

Base class for file formatters, which allow to link to the file download URL.

Hierarchy

Expanded class hierarchy of BaseFieldFileFormatterBase

File

core/modules/file/src/Plugin/Field/FieldFormatter/BaseFieldFileFormatterBase.php, line 16

Namespace

Drupal\file\Plugin\Field\FieldFormatter
View source 
abstract class BaseFieldFileFormatterBase extends FormatterBase {

  /**
   * The file URL generator.
   *
   * @var \Drupal\Core\File\FileUrlGeneratorInterface
   */
  protected $fileUrlGenerator;

  /**
   * Constructs a BaseFieldFileFormatterBase 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.
   * @param \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator
   *   The file URL generator.
   */
  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, FileUrlGeneratorInterface $file_url_generator = NULL) {
    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings);
    if (!$file_url_generator) {
      @trigger_error('Calling BaseFieldFileFormatterBase::__construct() without the $file_url_generator argument is deprecated in drupal:9.3.0 and the $file_url_generator argument will be required in drupal:10.0.0. See https://www.drupal.org/node/2940031', E_USER_DEPRECATED);
      $file_url_generator = \Drupal::service('file_url_generator');
    }
    $this->fileUrlGenerator = $file_url_generator;
  }

  /**
   * {@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('file_url_generator'));
  }

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    $settings['link_to_file'] = FALSE;
    return $settings;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $form = parent::settingsForm($form, $form_state);
    $form['link_to_file'] = [
      '#title' => $this
        ->t('Link this field to the file download URL'),
      '#type' => 'checkbox',
      '#default_value' => $this
        ->getSetting('link_to_file'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    $url = NULL;

    // Add support to link to the entity itself.
    if ($this
      ->getSetting('link_to_file')) {
      $url = $this->fileUrlGenerator
        ->generate($items
        ->getEntity()
        ->getFileUri());
    }
    foreach ($items as $delta => $item) {
      $view_value = $this
        ->viewValue($item);
      if ($url) {
        $elements[$delta] = [
          '#type' => 'link',
          '#title' => $view_value,
          '#url' => $url,
        ];
      }
      else {
        $elements[$delta] = is_array($view_value) ? $view_value : [
          '#markup' => $view_value,
        ];
      }
    }
    return $elements;
  }

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

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

}

Members

Namesort descending Modifiers Type Description Overrides
BaseFieldFileFormatterBase::$fileUrlGenerator protected property The file URL generator.
BaseFieldFileFormatterBase::create public static function Creates an instance of the plugin. Overrides FormatterBase::create
BaseFieldFileFormatterBase::defaultSettings public static function Defines the default settings for this plugin. Overrides PluginSettingsBase::defaultSettings 4
BaseFieldFileFormatterBase::isApplicable public static function Returns if the formatter can be used for the provided field. Overrides FormatterBase::isApplicable 3
BaseFieldFileFormatterBase::settingsForm public function Returns a form to configure settings for the formatter. Overrides FormatterBase::settingsForm 4
BaseFieldFileFormatterBase::viewElements public function Builds a renderable array for a field value. Overrides FormatterInterface::viewElements
BaseFieldFileFormatterBase::viewValue abstract protected function Generate the output appropriate for one field item. 4
BaseFieldFileFormatterBase::__construct public function Constructs a BaseFieldFileFormatterBase object. Overrides FormatterBase::__construct
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
FormatterBase::$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::settingsSummary public function Returns a short summary for the current formatter settings. Overrides FormatterInterface::settingsSummary 22
FormatterBase::view public function Builds a renderable array for a fully themed field. Overrides FormatterInterface::view 1
MessengerTrait::$messenger protected property The messenger. 27
MessengerTrait::messenger public function Gets the messenger. 27
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$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 2
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. 4
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.