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class ThemeController in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/modules/system/src/Controller/ThemeController.php \Drupal\system\Controller\ThemeController

Controller for theme handling.

Hierarchy

Expanded class hierarchy of ThemeController

File

core/modules/system/src/Controller/ThemeController.php, line 23
Contains \Drupal\system\Controller\ThemeController.

Namespace

Drupal\system\Controller
View source 
class ThemeController extends ControllerBase {

  /**
   * The theme handler service.
   *
   * @var \Drupal\Core\Extension\ThemeHandlerInterface
   */
  protected $themeHandler;

  /**
   * Constructs a new ThemeController.
   *
   * @param \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler
   *   The theme handler.
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   The config factory.
   */
  public function __construct(ThemeHandlerInterface $theme_handler, ConfigFactoryInterface $config_factory) {
    $this->themeHandler = $theme_handler;
    $this->configFactory = $config_factory;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('theme_handler'), $container
      ->get('config.factory'));
  }

  /**
   * Uninstalls a theme.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   A request object containing a theme name and a valid token.
   *
   * @return \Symfony\Component\HttpFoundation\RedirectResponse
   *   Redirects back to the appearance admin page.
   *
   * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
   *   Throws access denied when no theme or token is set in the request or when
   *   the token is invalid.
   */
  public function uninstall(Request $request) {
    $theme = $request
      ->get('theme');
    $config = $this
      ->config('system.theme');
    if (isset($theme)) {

      // Get current list of themes.
      $themes = $this->themeHandler
        ->listInfo();

      // Check if the specified theme is one recognized by the system.
      if (!empty($themes[$theme])) {

        // Do not uninstall the default or admin theme.
        if ($theme === $config
          ->get('default') || $theme === $config
          ->get('admin')) {
          drupal_set_message($this
            ->t('%theme is the default theme and cannot be uninstalled.', array(
            '%theme' => $themes[$theme]->info['name'],
          )), 'error');
        }
        else {
          $this->themeHandler
            ->uninstall(array(
            $theme,
          ));
          drupal_set_message($this
            ->t('The %theme theme has been uninstalled.', array(
            '%theme' => $themes[$theme]->info['name'],
          )));
        }
      }
      else {
        drupal_set_message($this
          ->t('The %theme theme was not found.', array(
          '%theme' => $theme,
        )), 'error');
      }
      return $this
        ->redirect('system.themes_page');
    }
    throw new AccessDeniedHttpException();
  }

  /**
   * Installs a theme.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   A request object containing a theme name and a valid token.
   *
   * @return \Symfony\Component\HttpFoundation\RedirectResponse
   *   Redirects back to the appearance admin page.
   *
   * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
   *   Throws access denied when no theme or token is set in the request or when
   *   the token is invalid.
   */
  public function install(Request $request) {
    $theme = $request
      ->get('theme');
    if (isset($theme)) {
      try {
        if ($this->themeHandler
          ->install(array(
          $theme,
        ))) {
          $themes = $this->themeHandler
            ->listInfo();
          drupal_set_message($this
            ->t('The %theme theme has been installed.', array(
            '%theme' => $themes[$theme]->info['name'],
          )));
        }
        else {
          drupal_set_message($this
            ->t('The %theme theme was not found.', array(
            '%theme' => $theme,
          )), 'error');
        }
      } catch (PreExistingConfigException $e) {
        $config_objects = $e
          ->flattenConfigObjects($e
          ->getConfigObjects());
        drupal_set_message($this
          ->formatPlural(count($config_objects), 'Unable to install @extension, %config_names already exists in active configuration.', 'Unable to install @extension, %config_names already exist in active configuration.', array(
          '%config_names' => implode(', ', $config_objects),
          '@extension' => $theme,
        )), 'error');
      } catch (UnmetDependenciesException $e) {
        drupal_set_message($e
          ->getTranslatedMessage($this
          ->getStringTranslation(), $theme), 'error');
      }
      return $this
        ->redirect('system.themes_page');
    }
    throw new AccessDeniedHttpException();
  }

  /**
   * Set the default theme.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   A request object containing a theme name.
   *
   * @return \Symfony\Component\HttpFoundation\RedirectResponse
   *   Redirects back to the appearance admin page.
   *
   * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
   *   Throws access denied when no theme is set in the request.
   */
  public function setDefaultTheme(Request $request) {
    $config = $this->configFactory
      ->getEditable('system.theme');
    $theme = $request->query
      ->get('theme');
    if (isset($theme)) {

      // Get current list of themes.
      $themes = $this->themeHandler
        ->listInfo();

      // Check if the specified theme is one recognized by the system.
      // Or try to install the theme.
      if (isset($themes[$theme]) || $this->themeHandler
        ->install(array(
        $theme,
      ))) {
        $themes = $this->themeHandler
          ->listInfo();

        // Set the default theme.
        $config
          ->set('default', $theme)
          ->save();

        // The status message depends on whether an admin theme is currently in
        // use: a value of 0 means the admin theme is set to be the default
        // theme.
        $admin_theme = $config
          ->get('admin');
        if ($admin_theme != 0 && $admin_theme != $theme) {
          drupal_set_message($this
            ->t('Please note that the administration theme is still set to the %admin_theme theme; consequently, the theme on this page remains unchanged. All non-administrative sections of the site, however, will show the selected %selected_theme theme by default.', array(
            '%admin_theme' => $themes[$admin_theme]->info['name'],
            '%selected_theme' => $themes[$theme]->info['name'],
          )));
        }
        else {
          drupal_set_message($this
            ->t('%theme is now the default theme.', array(
            '%theme' => $themes[$theme]->info['name'],
          )));
        }
      }
      else {
        drupal_set_message($this
          ->t('The %theme theme was not found.', array(
          '%theme' => $theme,
        )), 'error');
      }
      return $this
        ->redirect('system.themes_page');
    }
    throw new AccessDeniedHttpException();
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ControllerBase::$configFactory protected property The configuration factory.
ControllerBase::$currentUser protected property The current user service. 1
ControllerBase::$entityFormBuilder protected property The entity form builder.
ControllerBase::$entityManager protected property The entity manager. 1
ControllerBase::$entityTypeManager protected property The entity type manager.
ControllerBase::$formBuilder protected property The form builder. 3
ControllerBase::$keyValue protected property The key-value storage. 1
ControllerBase::$languageManager protected property The language manager. 1
ControllerBase::$moduleHandler protected property The module handler. 2
ControllerBase::$stateService protected property The state service.
ControllerBase::cache protected function Returns the requested cache bin.
ControllerBase::config protected function Retrieves a configuration object.
ControllerBase::container private function Returns the service container.
ControllerBase::currentUser protected function Returns the current user. 1
ControllerBase::entityFormBuilder protected function Retrieves the entity form builder.
ControllerBase::entityManager Deprecated protected function Retrieves the entity manager service. 1
ControllerBase::entityTypeManager protected function Retrieves the entity type manager.
ControllerBase::formBuilder protected function Returns the form builder service. 3
ControllerBase::keyValue protected function Returns a key/value storage collection. 1
ControllerBase::languageManager protected function Returns the language manager service. 1
ControllerBase::moduleHandler protected function Returns the module handler. 2
ControllerBase::state protected function Returns the state storage service.
LinkGeneratorTrait::$linkGenerator protected property The link generator. 1
LinkGeneratorTrait::getLinkGenerator protected function Returns the link generator.
LinkGeneratorTrait::l protected function Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator public function Sets the link generator service.
RedirectDestinationTrait::$redirectDestination protected property The redirect destination service.
RedirectDestinationTrait::getDestinationArray protected function Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination protected function Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination public function Sets the redirect destination service.
StringTranslationTrait::$stringTranslation protected property The string translation service.
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
ThemeController::$themeHandler protected property The theme handler service.
ThemeController::create public static function Instantiates a new instance of this class. Overrides ControllerBase::create
ThemeController::install public function Installs a theme.
ThemeController::setDefaultTheme public function Set the default theme.
ThemeController::uninstall public function Uninstalls a theme.
ThemeController::__construct public function Constructs a new ThemeController.
UrlGeneratorTrait::$urlGenerator protected property The url generator.
UrlGeneratorTrait::getUrlGenerator protected function Returns the URL generator service.
UrlGeneratorTrait::redirect protected function Returns a redirect response object for the specified route.
UrlGeneratorTrait::setUrlGenerator public function Sets the URL generator service.
UrlGeneratorTrait::url protected function Generates a URL or path for a specific route based on the given parameters.