public function PrintableLinksBlock::build in Printer and PDF versions for Drupal 8+ 2.x

Same name and namespace in other branches

1. 8 src/Plugin/Block/PrintableLinksBlock.php \Drupal\printable\Plugin\Block\PrintableLinksBlock::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/PrintableLinksBlock.php, line 158

Class

PrintableLinksBlock

Provides a printable links block for each printable entity.

Namespace

Drupal\printable\Plugin\Block

Code

public function build() {
  $entity_type = $this
    ->getDerivativeId();
  $route_match = $this->routematch
    ->getMasterRouteMatch();
  $route_entity = $route_match
    ->getParameter($entity_type);
  $entity_id = $route_entity ? $route_entity
    ->id() : 'NULL';
  $build = [
    '#cache' => [
      'contexts' => [
        'route',
      ],
      'tags' => [
        $entity_type . ':' . $entity_id,
      ],
      'max-age' => $this->configuration['max_age'] ?: 0,
    ],
  ];
  if ($route_entity) {
    return $build + [
      '#theme' => 'links__entity__printable',
      '#links' => $this->linkBuilder
        ->buildLinks($this->routematch
        ->getMasterRouteMatch()
        ->getParameter($entity_type)),
    ];
  }
  else {
    return $build;
  }
}