class HelpTopicTwig in Drupal 8

Represents a help topic plugin whose definition comes from a Twig file.

@internal Help Topics is currently experimental and should only be leveraged by experimental modules and development releases of contributed modules. See https://www.drupal.org/core/experimental for more information.

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\help_topics\HelpTopicPluginBase implements HelpTopicPluginInterface
      • class \Drupal\help_topics\HelpTopicTwig implements ContainerFactoryPluginInterface

See also

\Drupal\help_topics\HelpTopicDiscovery

\Drupal\help_topics\HelpTopicTwigLoader

\Drupal\help_topics\HelpTopicPluginManager

2 files declare their use of HelpTopicTwig

HelpTopicDiscoveryTest.php in core/modules/help_topics/tests/src/Unit/HelpTopicDiscoveryTest.php

HelpTopicTwigTest.php in core/modules/help_topics/tests/src/Unit/HelpTopicTwigTest.php

File

core/modules/help_topics/src/HelpTopicTwig.php, line 22

Namespace

Drupal\help_topics

class HelpTopicTwig extends HelpTopicPluginBase implements ContainerFactoryPluginInterface {

  /**
   * The Twig environment.
   *
   * @var \Drupal\Core\Template\TwigEnvironment
   */
  protected $twig;

  /**
   * HelpTopicPluginBase constructor.
   *
   * @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\Template\TwigEnvironment $twig
   *   The Twig environment.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, TwigEnvironment $twig) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->twig = $twig;
  }

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

  /**
   * {@inheritdoc}
   */
  public function getBody() {
    return [
      '#markup' => $this->twig
        ->load('@help_topics/' . $this
        ->getPluginId() . '.html.twig')
        ->render(),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheContexts() {
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheTags() {
    return [
      'core.extension',
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheMaxAge() {
    return Cache::PERMANENT;
  }

}

Members

Name	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
HelpTopicPluginBase::getLabel	public	function	Returns the label of the topic. Overrides HelpTopicPluginInterface::getLabel
HelpTopicPluginBase::getProvider	public	function	The name of the module or theme providing the help topic.
HelpTopicPluginBase::getRelated	public	function	Returns the IDs of related topics. Overrides HelpTopicPluginInterface::getRelated
HelpTopicPluginBase::isTopLevel	public	function	Returns whether this is a top-level topic or not. Overrides HelpTopicPluginInterface::isTopLevel
HelpTopicPluginBase::toLink	public	function	Returns a link for viewing the help topic. Overrides HelpTopicPluginInterface::toLink
HelpTopicPluginBase::toUrl	public	function	Returns the URL for viewing the help topic. Overrides HelpTopicPluginInterface::toUrl
HelpTopicTwig::$twig	protected	property	The Twig environment.
HelpTopicTwig::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
HelpTopicTwig::getBody	public	function	Returns the body of the topic. Overrides HelpTopicPluginInterface::getBody
HelpTopicTwig::getCacheContexts	public	function	The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts
HelpTopicTwig::getCacheMaxAge	public	function	The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge
HelpTopicTwig::getCacheTags	public	function	The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags
HelpTopicTwig::__construct	public	function	HelpTopicPluginBase constructor. Overrides PluginBase::__construct
MessengerTrait::$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::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	3
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
StringTranslationTrait::$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.