PHP ThemeHandlerInterface::getDefault方法代码示例

 /**
  * Inject the relevant css for the template.
  *
  * You can specify CSS files to be included per entity type and bundle in your
  * themes css file. This code uses your current theme which is likely to be the
  * front end theme.
  *
  * Examples:
  *
  * entity_print:
  *   all: 'yourtheme/all-pdfs',
  *   commerce_order:
  *     all: 'yourtheme/orders'
  *   node:
  *     article: 'yourtheme/article-pdf'
  *
  * @param array $render
  *   The renderable array.
  * @param \Drupal\Core\Entity\ContentEntityInterface $entity
  *   The entity info from entity_get_info().
  *
  * @return array
  *   An array of stylesheets to be used for this template.
  */
 protected function addCss($render, ContentEntityInterface $entity)
 {
     $theme = $this->themeHandler->getDefault();
     $theme_path = $this->getThemePath($theme);
     /** @var \Drupal\Core\Extension\InfoParser $parser */
     $theme_info = $this->infoParser->parse("{$theme_path}/{$theme}.info.yml");
     // Parse out the CSS from the theme info.
     if (isset($theme_info['entity_print'])) {
         // See if we have the special "all" key which is added to every PDF.
         if (isset($theme_info['entity_print']['all'])) {
             $render['#attached']['library'][] = $theme_info['entity_print']['all'];
             unset($theme_info['entity_print']['all']);
         }
         foreach ($theme_info['entity_print'] as $key => $value) {
             // If the entity type doesn't match just skip.
             if ($key !== $entity->getEntityTypeId()) {
                 continue;
             }
             // Parse our css files per entity type and bundle.
             foreach ($value as $css_bundle => $css) {
                 // If it's magic key "all" add it otherwise check the bundle.
                 if ($css_bundle === 'all' || $entity->bundle() === $css_bundle) {
                     $render['#attached']['library'][] = $css;
                 }
             }
         }
     }
     return $render;
 }

 /**
  * {@inheritdoc}
  */
 public function getDerivativeDefinitions($base_plugin_definition)
 {
     $default_theme = $this->themeHandler->getDefault();
     foreach ($this->themeHandler->listInfo() as $theme_name => $theme) {
         if ($this->themeHandler->hasUi($theme_name)) {
             $this->derivatives[$theme_name] = $base_plugin_definition;
             $this->derivatives[$theme_name]['title'] = $theme->info['name'];
             $this->derivatives[$theme_name]['route_parameters'] = array('theme' => $theme_name);
         }
         // Default task!
         if ($default_theme == $theme_name) {
             $this->derivatives[$theme_name]['route_name'] = $base_plugin_definition['parent_id'];
             // Emulate default logic because without the base plugin id we can't
             // change the base_route.
             $this->derivatives[$theme_name]['weight'] = -10;
             unset($this->derivatives[$theme_name]['route_parameters']);
         }
     }
     return $this->derivatives;
 }

 /**
  * Disables the language switcher blocks.
  *
  * @param array $language_types
  *   An array containing all language types whose language switchers need to
  *   be disabled.
  */
 protected function disableLanguageSwitcher(array $language_types)
 {
     $theme = $this->themeHandler->getDefault();
     $blocks = $this->blockStorage->loadByProperties(array('theme' => $theme));
     foreach ($language_types as $language_type) {
         foreach ($blocks as $block) {
             if ($block->getPluginId() == 'language_block:' . $language_type) {
                 $block->delete();
             }
         }
     }
 }

 /**
  * Disables the language switcher blocks.
  *
  * @param array $language_types
  *   An array containing all language types whose language switchers need to
  *   be disabled.
  */
 protected function disableLanguageSwitcher(array $language_types)
 {
     $theme = $this->themeHandler->getDefault();
     $blocks = $this->blockStorage->loadByProperties(array('theme' => $theme));
     foreach ($language_types as $language_type) {
         foreach ($blocks as $block) {
             if (strpos($block->id, 'language_switcher_' . substr($language_type, 9)) !== FALSE) {
                 $block->delete();
             }
         }
     }
 }