public function LanguageSwitcherBlock::build in Open Social 8.9

Same name and namespace in other branches

1. 8.4 modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
2. 8.5 modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
3. 8.6 modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
4. 8.7 modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
5. 8.8 modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
6. 10.3.x modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
7. 10.0.x modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
8. 10.1.x modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()
9. 10.2.x modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php \Drupal\social_language\Plugin\Block\LanguageSwitcherBlock::build()

Builds and returns the renderable array for this block plugin.

If a block should not be rendered because it has no content, then this method must also ensure to return no content: it must then only return an empty array, or an empty array with #cache set (with cacheability metadata indicating the circumstances for it being empty).

Return value

array A renderable array representing the content of the block.

Overrides LanguageBlock::build

See also

\Drupal\block\BlockViewBuilder

File

modules/custom/social_language/src/Plugin/Block/LanguageSwitcherBlock.php, line 31

Class

LanguageSwitcherBlock

Provides a 'LanguageSwitcherBlock' block.

Namespace

Drupal\social_language\Plugin\Block

Code

public function build() {

  /** @var \Drupal\Core\Language\Language $currentLanguage */
  $currentLanguage = $this->languageManager
    ->getCurrentLanguage();

  // Build the menu.
  $block = [
    '#attributes' => [
      'class' => [
        'navbar-user',
      ],
    ],
    'menu_items' => [
      '#theme' => 'item_list',
      '#list_type' => 'ul',
      '#attributes' => [
        'class' => [
          'nav',
          'navbar-nav',
        ],
      ],
      '#items' => [],
    ],
  ];

  // Add `'#icon' => 'language',` to this array to replace the text
  // with an icon.
  $block['menu_items']['#items']['language'] = [
    '#type' => 'account_header_element',
    '#title' => $currentLanguage
      ->getName() . " (" . $currentLanguage
      ->getId() . ")",
    '#label' => $currentLanguage
      ->getName(),
    '#url' => Url::fromRoute('<none>'),
    '#wrapper_attributes' => [
      'class' => [
        'dropdown',
      ],
    ],
  ];

  // Generate the routes for the current page.
  $route_name = $this->pathMatcher
    ->isFrontPage() ? '<front>' : '<current>';
  $type = $this
    ->getDerivativeId();
  $switchLinks = $this->languageManager
    ->getLanguageSwitchLinks($type, Url::fromRoute($route_name));

  // Use the default URL generator that does not rewrite the language.
  $url_generator = \Drupal::service('drupal_core_url_generator');

  // Add languages as links.
  foreach ($switchLinks->links as $langcode => $link) {
    $link['url']
      ->setOption('language', $this->languageManager
      ->getLanguage($langcode));
    $link['url']
      ->setUrlGenerator($url_generator);
    $block['menu_items']['#items']['language'][$langcode] = [
      '#type' => 'link',
      '#label' => $link['title'] . " (" . $langcode . ")",
      '#title' => $link['title'] . " (" . $langcode . ")",
      '#url' => $link['url'],
      '#attributes' => [
        'class' => [
          $langcode === $currentLanguage
            ->getId() ? 'active' : NULL,
        ],
      ],
    ];
  }
  return $block;
}