class HookHelpSection in Drupal 8

Provides the module topics list section for the help page.

Plugin annotation

@HelpSection(
  id = "hook_help",
  title = @Translation("Module overviews"),
  description = @Translation("Module overviews are provided by modules. Overviews available for your installed modules:"),
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\help\Plugin\HelpSection\HelpSectionPluginBase implements HelpSectionPluginInterface uses UnchangingCacheableDependencyTrait
      • class \Drupal\help\Plugin\HelpSection\HookHelpSection implements ContainerFactoryPluginInterface

File

core/modules/help/src/Plugin/HelpSection/HookHelpSection.php, line 19

Namespace

Drupal\help\Plugin\HelpSection

class HookHelpSection extends HelpSectionPluginBase implements ContainerFactoryPluginInterface {

  /**
   * The module handler.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;

  /**
   * Constructs a HookHelpSection 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\Extension\ModuleHandlerInterface $module_handler
   *   The module handler service.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, ModuleHandlerInterface $module_handler) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->moduleHandler = $module_handler;
  }

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

  /**
   * {@inheritdoc}
   */
  public function listTopics() {
    $topics = [];
    foreach ($this->moduleHandler
      ->getImplementations('help') as $module) {
      $title = $this->moduleHandler
        ->getName($module);
      $topics[$title] = Link::createFromRoute($title, 'help.page', [
        'name' => $module,
      ]);
    }

    // Sort topics by title, which is the array key above.
    ksort($topics);
    return $topics;
  }

}

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
HelpSectionPluginBase::getDescription	public	function	Returns the description text for the help section. Overrides HelpSectionPluginInterface::getDescription
HelpSectionPluginBase::getTitle	public	function	Returns the title of the help section. Overrides HelpSectionPluginInterface::getTitle
HookHelpSection::$moduleHandler	protected	property	The module handler.
HookHelpSection::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
HookHelpSection::listTopics	public	function	Returns a list of topics to show in the help section. Overrides HelpSectionPluginInterface::listTopics
HookHelpSection::__construct	public	function	Constructs a HookHelpSection object. Overrides PluginBase::__construct
MessengerTrait::$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.
UnchangingCacheableDependencyTrait::getCacheContexts	public	function		1
UnchangingCacheableDependencyTrait::getCacheMaxAge	public	function		3
UnchangingCacheableDependencyTrait::getCacheTags	public	function		1