public function BackgroundImageBlock::build in Background Image 8

Same name and namespace in other branches

1. 2.x src/Plugin/Block/BackgroundImageBlock.php \Drupal\background_image\Plugin\Block\BackgroundImageBlock::build()
2. 2.0.x src/Plugin/Block/BackgroundImageBlock.php \Drupal\background_image\Plugin\Block\BackgroundImageBlock::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 BlockPluginInterface::build

See also

\Drupal\block\BlockViewBuilder

File

src/Plugin/Block/BackgroundImageBlock.php, line 30

Class

BackgroundImageBlock

Plugin annotation @Block( id = "background_image", admin_label = @Translation("Background Image"), category = @Translation("Background Image") )

Namespace

Drupal\background_image\Plugin\Block

Code

public function build() {
  $build = [];
  $background_image_manager = BackgroundImageManager::service();
  if ($background_image = $background_image_manager
    ->getBackgroundImage()) {
    $build = $background_image_manager
      ->view($background_image, 'image');
  }
  $build['#cache']['contexts'][] = 'user.permissions';
  return $build;
}