class LanguageBlock in Zircon Profile 8

Provides a 'Language switcher' block.

Plugin annotation

@Block(
  id = "language_block",
  admin_label = @Translation("Language switcher"),
  category = @Translation("System"),
  deriver = "Drupal\language\Plugin\Derivative\LanguageBlock"
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Component\Plugin\ContextAwarePluginBase implements ContextAwarePluginInterface
    • class \Drupal\Core\Plugin\ContextAwarePluginBase implements ContextAwarePluginInterface uses DependencySerializationTrait, StringTranslationTrait, TypedDataTrait
      • class \Drupal\Core\Block\BlockBase implements BlockPluginInterface uses ContextAwarePluginAssignmentTrait
        • class \Drupal\language\Plugin\Block\LanguageBlock implements ContainerFactoryPluginInterface

File

core/modules/language/src/Plugin/Block/LanguageBlock.php, line 29

Contains \Drupal\language\Plugin\Block\LanguageBlock.

Namespace

Drupal\language\Plugin\Block

class LanguageBlock extends BlockBase implements ContainerFactoryPluginInterface {

  /**
   * The language manager.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $languageManager;

  /**
   * The path matcher.
   *
   * @var \Drupal\Core\Path\PathMatcherInterface
   */
  protected $pathMatcher;

  /**
   * Constructs an LanguageBlock object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param \Drupal\Core\Path\PathMatcherInterface $path_matcher
   *   The path matcher.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, LanguageManagerInterface $language_manager, PathMatcherInterface $path_matcher) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->languageManager = $language_manager;
    $this->pathMatcher = $path_matcher;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('language_manager'), $container
      ->get('path.matcher'));
  }

  /**
   * {@inheritdoc}
   */
  protected function blockAccess(AccountInterface $account) {
    $access = $this->languageManager
      ->isMultilingual() ? AccessResult::allowed() : AccessResult::forbidden();
    return $access
      ->addCacheTags([
      'config:configurable_language_list',
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function build() {
    $build = array();
    $route_name = $this->pathMatcher
      ->isFrontPage() ? '<front>' : '<current>';
    $type = $this
      ->getDerivativeId();
    $links = $this->languageManager
      ->getLanguageSwitchLinks($type, Url::fromRoute($route_name));
    if (isset($links->links)) {
      $build = array(
        '#theme' => 'links__language_block',
        '#links' => $links->links,
        '#attributes' => array(
          'class' => array(
            "language-switcher-{$links->method_id}",
          ),
        ),
        '#set_active_class' => TRUE,
      );
    }
    return $build;
  }

  /**
   * {@inheritdoc}
   *
   * @todo Make cacheable in https://www.drupal.org/node/2232375.
   */
  public function getCacheMaxAge() {
    return 0;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
BlockBase::$transliteration	protected	property	The transliteration service.
BlockBase::access	public	function	Indicates whether the block should be shown. Overrides BlockPluginInterface::access
BlockBase::baseConfigurationDefaults	protected	function	Returns generic default configuration for block plugins.
BlockBase::blockForm	public	function	Returns the configuration form elements specific to this block plugin. Overrides BlockPluginInterface::blockForm	11
BlockBase::blockSubmit	public	function	Adds block type-specific submission handling for the block form. Overrides BlockPluginInterface::blockSubmit	10
BlockBase::blockValidate	public	function	Adds block type-specific validation for the block form. Overrides BlockPluginInterface::blockValidate	1
BlockBase::buildConfigurationForm	public	function	Creates a generic configuration form for all block types. Individual block plugins can add elements to this form by overriding BlockBase::blockForm(). Most block plugins should not override this method unless they need to alter the generic form elements. Overrides PluginFormInterface::buildConfigurationForm	1
BlockBase::calculateDependencies	public	function	Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies
BlockBase::defaultConfiguration	public	function	Gets default configuration for this plugin. Overrides ConfigurablePluginInterface::defaultConfiguration	14
BlockBase::getConfiguration	public	function	Gets this plugin's configuration. Overrides ConfigurablePluginInterface::getConfiguration	1
BlockBase::getMachineNameSuggestion	public	function	Suggests a machine name to identify an instance of this block. Overrides BlockPluginInterface::getMachineNameSuggestion	1
BlockBase::label	public	function	Returns the user-facing block label. Overrides BlockPluginInterface::label
BlockBase::setConfiguration	public	function	Sets the configuration for this plugin instance. Overrides ConfigurablePluginInterface::setConfiguration
BlockBase::setConfigurationValue	public	function	Sets a particular value in the block settings. Overrides BlockPluginInterface::setConfigurationValue
BlockBase::setTransliteration	public	function	Sets the transliteration service.
BlockBase::submitConfigurationForm	public	function	Most block plugins should not override this method. To add submission handling for a specific block type, override BlockBase::blockSubmit(). Overrides PluginFormInterface::submitConfigurationForm
BlockBase::transliteration	protected	function	Wraps the transliteration service.
BlockBase::validateConfigurationForm	public	function	Most block plugins should not override this method. To add validation for a specific block type, override BlockBase::blockValidate(). Overrides PluginFormInterface::validateConfigurationForm
ContextAwarePluginAssignmentTrait::addContextAssignmentElement	protected	function	Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler	protected	function	Wraps the context handler.
ContextAwarePluginAssignmentTrait::t	abstract protected	function	Ensures the t() method is available.
ContextAwarePluginBase::$context	protected	property	The data objects representing the context of this plugin.
ContextAwarePluginBase::createContextFromConfiguration	protected	function	Overrides ContextAwarePluginBase::createContextFromConfiguration
ContextAwarePluginBase::getCacheContexts	public	function		9
ContextAwarePluginBase::getCacheTags	public	function		4
ContextAwarePluginBase::getContext	public	function	Overrides ContextAwarePluginBase::getContext
ContextAwarePluginBase::getContextDefinition	public	function	Overrides ContextAwarePluginBase::getContextDefinition
ContextAwarePluginBase::getContextDefinitions	public	function	Overrides ContextAwarePluginBase::getContextDefinitions
ContextAwarePluginBase::getContextMapping	public	function	Gets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::getContextMapping
ContextAwarePluginBase::getContexts	public	function	Gets the defined contexts. Overrides ContextAwarePluginInterface::getContexts
ContextAwarePluginBase::getContextValue	public	function	Gets the value for a defined context. Overrides ContextAwarePluginInterface::getContextValue
ContextAwarePluginBase::getContextValues	public	function	Gets the values for all defined contexts. Overrides ContextAwarePluginInterface::getContextValues
ContextAwarePluginBase::setContext	public	function	Set a context on this plugin. Overrides ContextAwarePluginBase::setContext
ContextAwarePluginBase::setContextMapping	public	function	Sets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::setContextMapping
ContextAwarePluginBase::setContextValue	public	function	Sets the value for a defined context. Overrides ContextAwarePluginBase::setContextValue
ContextAwarePluginBase::validateContexts	public	function	Validates the set values for the defined contexts. Overrides ContextAwarePluginInterface::validateContexts
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
LanguageBlock::$languageManager	protected	property	The language manager.
LanguageBlock::$pathMatcher	protected	property	The path matcher.
LanguageBlock::blockAccess	protected	function	Indicates whether the block should be shown. Overrides BlockBase::blockAccess
LanguageBlock::build	public	function	Builds and returns the renderable array for this block plugin. Overrides BlockPluginInterface::build
LanguageBlock::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
LanguageBlock::getCacheMaxAge	public	function	@todo Make cacheable in https://www.drupal.org/node/2232375. Overrides ContextAwarePluginBase::getCacheMaxAge
LanguageBlock::__construct	public	function	Constructs an LanguageBlock object. Overrides BlockBase::__construct
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	2
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.
PluginBase::$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
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
TypedDataTrait::$typedDataManager	protected	property	The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager	public	function	Gets the typed data manager.	1
TypedDataTrait::setTypedDataManager	public	function	Sets the typed data manager.	1