interface PlaceholderStrategyInterface in Drupal 9

Provides an interface for defining a placeholder strategy service.

Hierarchy

• interface \Drupal\Core\Render\Placeholder\PlaceholderStrategyInterface

2 files declare their use of PlaceholderStrategyInterface

BigPipeStrategy.php in core/modules/big_pipe/src/Render/Placeholder/BigPipeStrategy.php

HtmlResponsePlaceholderStrategySubscriber.php in core/lib/Drupal/Core/EventSubscriber/HtmlResponsePlaceholderStrategySubscriber.php

File

core/lib/Drupal/Core/Render/Placeholder/PlaceholderStrategyInterface.php, line 8

Namespace

Drupal\Core\Render\Placeholder

interface PlaceholderStrategyInterface {

  /**
   * Processes placeholders to render them with different strategies.
   *
   * @param array $placeholders
   *   The placeholders to process, with the keys being the markup for the
   *   placeholders and the values the corresponding render array describing the
   *   data to be rendered.
   *
   * @return array
   *   The resulting placeholders, with a subset of the keys of $placeholders
   *   (and those being the markup for the placeholders) but with the
   *   corresponding render array being potentially modified to render e.g. an
   *   ESI or BigPipe placeholder.
   */
  public function processPlaceholders(array $placeholders);

}

Members

Name	Modifiers	Type	Description	Overrides
PlaceholderStrategyInterface::processPlaceholders	public	function	Processes placeholders to render them with different strategies.	3