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class Language in Drupal 8

Same name in this branch
  1. 8 core/lib/Drupal/Core/Language/Language.php \Drupal\Core\Language\Language
  2. 8 core/modules/ckeditor/src/Plugin/CKEditorPlugin/Language.php \Drupal\ckeditor\Plugin\CKEditorPlugin\Language
  3. 8 core/modules/language/src/Plugin/Condition/Language.php \Drupal\language\Plugin\Condition\Language
  4. 8 core/lib/Drupal/Core/TypedData/Plugin/DataType/Language.php \Drupal\Core\TypedData\Plugin\DataType\Language
  5. 8 core/modules/language/src/Plugin/migrate/source/Language.php \Drupal\language\Plugin\migrate\source\Language
Same name and namespace in other branches
  1. 9 core/modules/language/src/Plugin/Condition/Language.php \Drupal\language\Plugin\Condition\Language

Provides a 'Language' condition.

Plugin annotation


@Condition(
  id = "language",
  label = @Translation("Language"),
  context_definitions = {
    "language" = @ContextDefinition("language", label = @Translation("Language"))
  }
)

Hierarchy

Expanded class hierarchy of Language

62 string references to 'Language'
ckeditor.schema.yml in core/modules/ckeditor/config/schema/ckeditor.schema.yml
core/modules/ckeditor/config/schema/ckeditor.schema.yml
ConfigTestForm::form in core/modules/config/tests/config_test/src/ConfigTestForm.php
Gets the actual form array to be built.
ConfigTranslationController::itemPage in core/modules/config_translation/src/Controller/ConfigTranslationController.php
Language translations overview page for a configuration name.
ConfigTranslationListUiTest::doBlockListTest in core/modules/config_translation/tests/src/Functional/ConfigTranslationListUiTest.php
Tests the block listing for the translate operation.
ConfigTranslationListUiTest::doContactFormsListTest in core/modules/config_translation/tests/src/Functional/ConfigTranslationListUiTest.php
Tests the contact forms listing for the translate operation.

... See full list

File

core/modules/language/src/Plugin/Condition/Language.php, line 23

Namespace

Drupal\language\Plugin\Condition
View source 
class Language extends ConditionPluginBase implements ContainerFactoryPluginInterface {

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

  /**
   * Creates a new Language instance.
   *
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param array $configuration
   *   The plugin configuration, i.e. an array with configuration values keyed
   *   by configuration option name. The special key 'context' may be used to
   *   initialize the defined contexts by setting it to an array of context
   *   values keyed by context names.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   */
  public function __construct(LanguageManagerInterface $language_manager, array $configuration, $plugin_id, $plugin_definition) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->languageManager = $language_manager;
  }

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

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    if ($this->languageManager
      ->isMultilingual()) {

      // Fetch languages.
      $languages = $this->languageManager
        ->getLanguages();
      $langcodes_options = [];
      foreach ($languages as $language) {
        $langcodes_options[$language
          ->getId()] = $language
          ->getName();
      }
      $form['langcodes'] = [
        '#type' => 'checkboxes',
        '#title' => $this
          ->t('Language selection'),
        '#default_value' => $this->configuration['langcodes'],
        '#options' => $langcodes_options,
        '#description' => $this
          ->t('Select languages to enforce. If none are selected, all languages will be allowed.'),
      ];
    }
    else {
      $form['langcodes'] = [
        '#type' => 'value',
        '#default_value' => $this->configuration['langcodes'],
      ];
    }
    return parent::buildConfigurationForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    $this->configuration['langcodes'] = array_filter($form_state
      ->getValue('langcodes'));
    parent::submitConfigurationForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function summary() {
    $language_list = $this->languageManager
      ->getLanguages(LanguageInterface::STATE_ALL);
    $selected = $this->configuration['langcodes'];

    // Reduce the language list to an array of language names.
    $language_names = array_reduce($language_list, function (&$result, $item) use ($selected) {

      // If the current item of the $language_list array is one of the selected
      // languages, add it to the $results array.
      if (!empty($selected[$item
        ->getId()])) {
        $result[$item
          ->getId()] = $item
          ->getName();
      }
      return $result;
    }, []);

    // If we have more than one language selected, separate them by commas.
    if (count($this->configuration['langcodes']) > 1) {
      $languages = implode(', ', $language_names);
    }
    else {

      // If we have just one language just grab the only present value.
      $languages = array_pop($language_names);
    }
    if (!empty($this->configuration['negate'])) {
      return t('The language is not @languages.', [
        '@languages' => $languages,
      ]);
    }
    return t('The language is @languages.', [
      '@languages' => $languages,
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function evaluate() {
    if (empty($this->configuration['langcodes']) && !$this
      ->isNegated()) {
      return TRUE;
    }
    $language = $this
      ->getContextValue('language');

    // Language visibility settings.
    return !empty($this->configuration['langcodes'][$language
      ->getId()]);
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'langcodes' => [],
    ] + parent::defaultConfiguration();
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ConditionPluginBase::$executableManager protected property The condition manager to proxy execute calls through.
ConditionPluginBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies
ConditionPluginBase::execute public function Executes the plugin. Overrides ExecutableInterface::execute
ConditionPluginBase::getConfiguration public function Gets this plugin's configuration. Overrides ConfigurableInterface::getConfiguration
ConditionPluginBase::isNegated public function Determines whether condition result will be negated. Overrides ConditionInterface::isNegated
ConditionPluginBase::setConfiguration public function Sets the configuration for this plugin instance. Overrides ConfigurableInterface::setConfiguration
ConditionPluginBase::setExecutableManager public function Sets the executable manager class. Overrides ConditionInterface::setExecutableManager
ConditionPluginBase::validateConfigurationForm public function Form validation handler. Overrides PluginFormInterface::validateConfigurationForm
ContextAwarePluginAssignmentTrait::addContextAssignmentElement protected function Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler protected function Wraps the context handler.
ContextAwarePluginAssignmentTrait::t abstract protected function Ensures the t() method is available.
ContextAwarePluginBase::$context protected property The data objects representing the context of this plugin.
ContextAwarePluginBase::$contexts Deprecated private property Data objects representing the contexts passed in the plugin configuration.
ContextAwarePluginBase::createContextFromConfiguration protected function Overrides ContextAwarePluginBase::createContextFromConfiguration
ContextAwarePluginBase::getCacheContexts public function The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts 9
ContextAwarePluginBase::getCacheMaxAge public function The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge 7
ContextAwarePluginBase::getCacheTags public function The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags 4
ContextAwarePluginBase::getContext public function This code is identical to the Component in order to pick up a different Context class. 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
ContextAwarePluginBase::__get public function Implements magic __get() method.
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
ExecutablePluginBase::getConfig public function Gets all configuration values.
ExecutablePluginBase::getConfigDefinition public function Gets the definition of a configuration option.
ExecutablePluginBase::getConfigDefinitions public function Gets an array of definitions of available configuration options.
ExecutablePluginBase::setConfig public function Sets the value of a particular configuration option.
Language::$languageManager protected property The Language manager.
Language::buildConfigurationForm public function Form constructor. Overrides ConditionPluginBase::buildConfigurationForm
Language::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
Language::defaultConfiguration public function Gets default configuration for this plugin. Overrides ConditionPluginBase::defaultConfiguration
Language::evaluate public function Evaluates the condition and returns TRUE or FALSE accordingly. Overrides ConditionInterface::evaluate
Language::submitConfigurationForm public function Form submission handler. Overrides ConditionPluginBase::submitConfigurationForm
Language::summary public function Provides a human readable summary of the condition's configuration. Overrides ConditionInterface::summary
Language::__construct public function Creates a new Language instance. Overrides ConditionPluginBase::__construct
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable public function Determines if the plugin is configurable.
StringTranslationTrait::$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
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 2
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 2