function StatusMessages::getInfo

Generate the placeholder in a #pre_render callback, because the hash salt needs to be accessed, which may not yet be available when this is called.

Overrides ElementInterface::getInfo

File

core/lib/Drupal/Core/Render/Element/StatusMessages.php, line 27

Class

StatusMessages

Provides a messages element.

Namespace

Code

public function getInfo() {
    return [
        // May have a value of 'status' or 'error' when only displaying messages
        // of that specific type.
'#display' => NULL,
        '#pre_render' => [
            get_class() . '::generatePlaceholder',
        ],
        '#include_fallback' => FALSE,
    ];
}