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abstract class FieldTimerJsFormatterBase in Field Timer 2.x

Same name and namespace in other branches
  1. 8 src/Plugin/Field/FieldFormatter/FieldTimerJsFormatterBase.php \Drupal\field_timer\Plugin\Field\FieldFormatter\FieldTimerJsFormatterBase

Implementation of formatters that uses JavaScript to render timer/countdown.

Hierarchy

Expanded class hierarchy of FieldTimerJsFormatterBase

File

src/Plugin/Field/FieldFormatter/FieldTimerJsFormatterBase.php, line 13

Namespace

Drupal\field_timer\Plugin\Field\FieldFormatter
View source 
abstract class FieldTimerJsFormatterBase extends FormatterBase {

  /**
   * Plugin name used to render timer/countdown widget.
   */
  const LIBRARY_NAME = '';

  /**
   * Key used by js code to determine how to initialize the timer/countdown.
   */
  const JS_KEY = '';

  /**
   * Stores set of unique html ids for current items.
   *
   * @var array
   */
  protected $itemKeys;

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    $elements['#attached']['library'][] = 'field_timer/' . static::LIBRARY_NAME;
    $elements['#attached']['library'][] = 'field_timer/init';
    $elements['#attached']['drupalSettings']['field_timer'] = $this
      ->generateJsSettings($items, $langcode);
    return $elements;
  }

  /**
   * Generates unique ids for the field items.
   *
   * @param \Drupal\Core\Field\FieldItemListInterface $items
   *   The field items.
   *
   * @return array
   *   Array of ids keyed by field item delta.
   */
  protected function getItemKeys(FieldItemListInterface $items) {
    $entity = $items
      ->getEntity();
    if (!isset($this->itemKeys[$entity
      ->getEntityTypeId()][$entity
      ->id()][$items
      ->getFieldDefinition()
      ->getName()])) {
      $entity = $items
        ->getEntity();
      $this->itemKeys = [];
      foreach ($items as $delta => $item) {
        $this->itemKeys[$entity
          ->getEntityTypeId()][$entity
          ->id()][$items
          ->getFieldDefinition()
          ->getName()][$delta] = implode('-', [
          $entity
            ->getEntityTypeId(),
          $entity
            ->id(),
          $items
            ->getFieldDefinition()
            ->getName(),
          $delta,
          Crypt::randomBytesBase64(8),
        ]);
      }
    }
    return $this->itemKeys[$entity
      ->getEntityTypeId()][$entity
      ->id()][$items
      ->getFieldDefinition()
      ->getName()] ?? [];
  }

  /**
   * Generates JS settings for the field.
   *
   * @param \Drupal\Core\Field\FieldItemListInterface $items
   *   Field items.
   * @param string $langcode
   *   Langcode value.
   *
   * @return array
   *   Array of JS settings to be used to initialize timer/countdown widget.
   */
  protected function generateJsSettings(FieldItemListInterface $items, $langcode) {
    $keys = $this
      ->getItemKeys($items);
    $js_settings = [];
    foreach ($items as $delta => $item) {
      $timestamp = $this
        ->getTimestamp($item);
      if ($timestamp !== NULL) {
        $js_settings[$keys[$delta]]['settings'] = $this
          ->preparePluginSettings($item, $langcode);
        $js_settings[$keys[$delta]]['plugin'] = static::JS_KEY;
      }
    }
    return $js_settings;
  }

  /**
   * Retrieves timestamp from field item.
   *
   * @param \Drupal\Core\Field\FieldItemInterface $item
   *   Field item.
   *
   * @return int|null
   *   Datetime field item timestamp.
   */
  protected function getTimestamp(FieldItemInterface $item) {
    if (!empty($item->date)) {
      return $item->date
        ->getTimestamp();
    }
    return NULL;
  }

  /**
   * Prepares array of settings used to initialize jQuery plugin.
   *
   * @param \Drupal\Core\Field\FieldItemInterface $item
   *   Field item.
   * @param string $langcode
   *   Langcode value.
   *
   * @return array
   *   Array of key-value pairs.
   */
  protected abstract function preparePluginSettings(FieldItemInterface $item, $langcode);

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_entityStorages protected property
DependencySerializationTrait::$_serviceIds protected property
DependencySerializationTrait::__sleep public function 2
DependencySerializationTrait::__wakeup public function 2
FieldTimerJsFormatterBase::$itemKeys protected property Stores set of unique html ids for current items.
FieldTimerJsFormatterBase::generateJsSettings protected function Generates JS settings for the field.
FieldTimerJsFormatterBase::getItemKeys protected function Generates unique ids for the field items.
FieldTimerJsFormatterBase::getTimestamp protected function Retrieves timestamp from field item.
FieldTimerJsFormatterBase::JS_KEY constant Key used by js code to determine how to initialize the timer/countdown. 3
FieldTimerJsFormatterBase::LIBRARY_NAME constant Plugin name used to render timer/countdown widget. 2
FieldTimerJsFormatterBase::preparePluginSettings abstract protected function Prepares array of settings used to initialize jQuery plugin. 2
FieldTimerJsFormatterBase::viewElements public function Builds a renderable array for a field value. Overrides FormatterInterface::viewElements 3
FormatterBase::$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::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create 12
FormatterBase::getFieldSetting protected function Returns the value of a field setting.
FormatterBase::getFieldSettings protected function Returns the array of field settings.
FormatterBase::isApplicable public static function Returns if the formatter can be used for the provided field. Overrides FormatterInterface::isApplicable 14
FormatterBase::prepareView public function Allows formatters to load information for field values being displayed. Overrides FormatterInterface::prepareView 2
FormatterBase::settingsForm public function Returns a form to configure settings for the formatter. Overrides FormatterInterface::settingsForm 24
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
FormatterBase::__construct public function Constructs a FormatterBase object. Overrides PluginBase::__construct 12
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::defaultSettings public static function Defines the default settings for this plugin. Overrides PluginSettingsInterface::defaultSettings 42
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.