public function PreviewAwareBlock::build in Drupal 10

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

core/modules/layout_builder/tests/modules/layout_builder_test/src/Plugin/Block/PreviewAwareBlock.php, line 21

Class

PreviewAwareBlock

Defines a class for a context-aware block.

Namespace

Drupal\layout_builder_test\Plugin\Block

Code

public function build() {
  $markup = $this
    ->t('This block is being rendered normally.');
  if ($this->inPreview) {
    $markup = $this
      ->t('This block is being rendered in preview mode.');
  }
  return [
    '#markup' => $markup,
  ];
}