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class Epubjs in Epub 8

Plugin implementation of the 'epubJs' formatter.

Plugin annotation


@FieldFormatter(
  id = "epub_js",
  label = @Translation("Epub: Epub.js reader"),
  field_types = {
    "file"
  }
 )

Hierarchy

Expanded class hierarchy of Epubjs

File

src/Plugin/Field/FieldFormatter/EpubJs.php, line 25
Contains \Drupal\epub\Plugin\Field\FieldFormatter\Epubjs.

Namespace

Drupal\epub\Plugin\Field\FieldFormatter
View source
class Epubjs extends FileFormatterBase {

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    global $base_url;
    $elements = array();
    foreach ($this
      ->getEntitiesToView($items, $langcode) as $delta => $file) {
      $file_url = file_create_url($file
        ->getFileUri());
      if ($file
        ->getMimeType() == 'application/epub+zip') {
        if ($this
          ->getSetting('epub_unzipped')) {
          $path = file_create_url('public://epub_content/' . $file
            ->id());
          $epub = $base_url . '/libraries/epub.js/reader/index.html?bookPath=' . $path . '/';
        }
        else {
          $epub = $base_url . '/libraries/epub.js/reader/index.html?bookPath=' . $file_url;
        }
        $file_url = file_create_url($file
          ->getFileUri());
        $elements[$delta] = array(
          '#theme' => 'epub_formatter_js',
          '#file' => $file,
          '#reader' => $epub,
          '#width' => $this
            ->getSetting('width'),
          '#height' => $this
            ->getSetting('height'),
        );
      }
      else {
        $elements[$delta] = array(
          '#theme' => 'file_link',
          '#file' => $file,
        );
      }
    }
    return $elements;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $element['epub_unzipped'] = array(
      '#type' => 'checkbox',
      '#title' => t('Use unzipped files from epub file in the reader'),
      '#default_value' => $this
        ->getSetting('unzipped'),
      '#description' => t('If unchecked, zipped epub file will be used directly in the reader. Make sure your users\' browsers can handle zip file.'),
    );
    $element['epub_width'] = array(
      '#type' => 'textfield',
      '#title' => t('Width'),
      '#default_value' => $this
        ->getSetting('width'),
      '#description' => t('The width of ebook viewer area.'),
    );
    $element['epub_height'] = array(
      '#type' => 'textfield',
      '#title' => t('Height'),
      '#default_value' => $this
        ->getSetting('height'),
      '#description' => t('The height of ebook viewer area. If "auto" is used, the iframe will auto-fit the epub document height and anchors in links will not work correctly.'),
    );
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    $settings['width'] = '100%';
    $settings['height'] = '600px';
    $settings['unzipped'] = TRUE;
    return $settings;
  }

}

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::getEntitiesToView protected function Returns the referenced entities for display. 1
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
Epubjs::defaultSettings public static function Defines the default settings for this plugin. Overrides PluginSettingsBase::defaultSettings
Epubjs::settingsForm public function Returns a form to configure settings for the formatter. Overrides FormatterBase::settingsForm
Epubjs::viewElements public function Builds a renderable array for a field value. Overrides FormatterInterface::viewElements
FileFormatterBase::checkAccess protected function Checks access to the given entity. Overrides EntityReferenceFormatterBase::checkAccess
FileFormatterBase::needsEntityLoad protected function Returns whether the entity referenced by an item needs to be loaded. Overrides EntityReferenceFormatterBase::needsEntityLoad 1
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::$viewMode protected property The view mode.
FormatterBase::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create 11
FormatterBase::getFieldSetting protected function Returns the value of a field setting.
FormatterBase::getFieldSettings protected function Returns the array of field settings.
FormatterBase::isApplicable public static function Returns if the formatter can be used for the provided field. Overrides FormatterInterface::isApplicable 14
FormatterBase::settingsSummary public function Returns a short summary for the current formatter settings. Overrides FormatterInterface::settingsSummary 22
FormatterBase::__construct public function Constructs a FormatterBase object. Overrides PluginBase::__construct 11
MessengerTrait::$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.