public ThemeHandlerInterface::listInfo() Returns a list of currently installed themes. Return value \Drupal\Core\Extension\Extension[] An associative array of the currently installed themes. The keys are the themes' machine names and the values are objects having the following properties: filename: The filepath and name of the .info.yml file. name: The machine name of the theme. status: 1 for installed, 0 for uninstalled themes. info: The contents of the .info.yml file. stylesheets: A two

public ThemeHandlerInterface::addTheme(Extension $theme) Adds a theme extension to the internal listing. Parameters \Drupal\Core\Extension\Extension $theme: The theme extension. File core/lib/Drupal/Core/Extension/ThemeHandlerInterface.php, line 102 Class ThemeHandlerInterface Manages the list of available themes. Namespace Drupal\Core\Extension Code public function addTheme(Extension $theme);

public ThemeHandlerInterface::getDefault() Returns the default theme. Return value string The default theme. File core/lib/Drupal/Core/Extension/ThemeHandlerInterface.php, line 159 Class ThemeHandlerInterface Manages the list of available themes. Namespace Drupal\Core\Extension Code public function getDefault();

public ThemeHandlerInterface::getTheme($name) Returns a theme extension object from the currently active theme list. Parameters string $name: The name of the theme to return. Return value \Drupal\Core\Extension\Extension An extension object. Throws \InvalidArgumentException Thrown when the requested theme does not exist. File core/lib/Drupal/Core/Extension/ThemeHandlerInterface.php, line 204 Class ThemeHandlerInterface Manages the list of available themes. Namespace Drupal\Core\Exten

public ThemeHandlerInterface::getBaseThemes(array $themes, $theme) Finds all the base themes for the specified theme. Themes can inherit templates and function implementations from earlier themes. Parameters \Drupal\Core\Extension\Extension[] $themes: An array of available themes. string $theme: The name of the theme whose base we are looking for. Return value array Returns an array of all of the theme's ancestors; the first element's value will be NULL if an error occurred. File core/lib/Dru

public ThemeHandlerInterface::getName($theme) Gets the human readable name of a given theme. Parameters string $theme: The machine name of the theme which title should be shown. Return value string Returns the human readable name of the theme. File core/lib/Drupal/Core/Extension/ThemeHandlerInterface.php, line 151 Class ThemeHandlerInterface Manages the list of available themes. Namespace Drupal\Core\Extension Code public function getName($theme);

public ThemeHandlerInterface::getThemeDirectories() Returns an array of directories for all installed themes. Useful for tasks such as finding a file that exists in all theme directories. Return value array File core/lib/Drupal/Core/Extension/ThemeHandlerInterface.php, line 179 Class ThemeHandlerInterface Manages the list of available themes. Namespace Drupal\Core\Extension Code public function getThemeDirectories();

Manages the list of available themes. Hierarchy interface \Drupal\Core\Extension\ThemeHandlerInterface File core/lib/Drupal/Core/Extension/ThemeHandlerInterface.php, line 8 Namespace Drupal\Core\Extension Members Name Modifiers Type Description ThemeHandlerInterface::addTheme public function Adds a theme extension to the internal listing. ThemeHandlerInterface::getBaseThemes public function Finds all the base themes for the specified theme. ThemeHandlerInterfac

public ThemeHandler::uninstall(array $theme_list) Uninstalls a given list of themes. Uninstalling a theme removes all related configuration (like blocks) and invokes the 'themes_uninstalled' hook. Parameters array $theme_list: The themes to uninstall. Throws \InvalidArgumentException Thrown when you uninstall an not installed theme. Overrides ThemeHandlerInterface::uninstall Deprecated in Drupal 8.0.x-dev and will be removed before Drupal 9.0.0. Use the theme_installer service instead. See

public ThemeHandler::__construct($root, ConfigFactoryInterface $config_factory, ModuleHandlerInterface $module_handler, StateInterface $state, InfoParserInterface $info_parser, ExtensionDiscovery $extension_discovery = NULL) Constructs a new ThemeHandler. Parameters string $root: The app root. \Drupal\Core\Config\ConfigFactoryInterface $config_factory: The config factory to get the installed themes. \Drupal\Core\Extension\ModuleHandlerInterface $module_handler: The module handler to fire theme