function NavigationUserBlock::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

File

core/modules/navigation/src/Plugin/Block/NavigationUserBlock.php, line 33

Class

NavigationUserBlock

Defines a user navigation block.

Namespace

Code

public function build() : array {
  return [
    '#create_placeholder' => TRUE,
    '#lazy_builder' => [
      static::class . '::buildLinks',
      [
        $this->configuration['label'],
      ],
    ],
    '#cache' => [
      'keys' => [
        'navigation_user_block',
      ],
    ],
  ];
}