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 value

string|\Drupal\Core\StringTranslation\TranslatableMarkup A string representing for this.

File

core/lib/Drupal/Core/Render/PreviewFallbackInterface.php, line 19

Class

PreviewFallbackInterface

Allows an element to provide a fallback representation of itself for preview.

Namespace

Drupal\Core\Render

Code

public function getPreviewFallbackString();

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