PreviewFallbackInterface.php in Drupal 9
Same filename and directory in other branches
Namespace
Drupal\Core\RenderFile
core/lib/Drupal/Core/Render/PreviewFallbackInterface.phpView source
<?php
namespace Drupal\Core\Render;
/**
* Allows an element to provide a fallback representation of itself for preview.
*/
interface PreviewFallbackInterface {
/**
* Returns a string to be used as a fallback during preview.
*
* This is typically used when an element has no output and must be displayed,
* for example during configuration.
*
* @return string|\Drupal\Core\StringTranslation\TranslatableMarkup
* A string representing for this.
*/
public function getPreviewFallbackString();
}
Interfaces
Name | Description |
---|---|
PreviewFallbackInterface | Allows an element to provide a fallback representation of itself for preview. |