public function FacebookAlbumBlock::build in Facebook Album 8

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/FacebookAlbumBlock.php, line 152

Contains \Drupal\facebook_album\Plugin\Block\FacebookAlbumBlock.

Class

FacebookAlbumBlock

Defines a facebook album block block type.

Namespace

Drupal\facebook_album\Plugin\Block

Code

public function build() {

  // Due to not having access to any entity info, we're storing settings via a hash
  // @TODO: Find a better way for this
  $config = $this
    ->getConfiguration();
  $hash = hash_hmac('md5', serialize($config), 'facebook_album');

  // Output the wrappers
  $content = [];
  $content['#attributes']['class'] = [
    'block',
    'block-facebook-album',
  ];
  $content[] = [
    '#theme_wrappers' => [
      'container' => [
        '#attributes' => [
          'id' => 'fba-' . $hash,
          'class' => [
            'facebook-album-container',
          ],
        ],
      ],
    ],
    'header' => [
      '#markup' => '<div class="fb-album-header"></div>',
    ],
    'albums' => [
      '#markup' => '<div class="facebook-album-images-container"></div>',
    ],
    'loading' => [
      '#markup' => '<div class="fb-loading-icon"></div>',
    ],
  ];

  // Add the library and settings
  $content['#attached'] = [
    'library' => [
      'facebook_album/facebook_album',
    ],
    'drupalSettings' => [
      'facebook_album' => [
        'fba-' . $hash => $config,
      ],
    ],
  ];
  return $content;
}