Same name in other branches

1. 8.9.x core/lib/Drupal/Core/Render/Element/StatusMessages.php \Drupal\Core\Render\Element\StatusMessages::generatePlaceholder()
2. 10 core/lib/Drupal/Core/Render/Element/StatusMessages.php \Drupal\Core\Render\Element\StatusMessages::generatePlaceholder()
3. 11.x core/lib/Drupal/Core/Render/Element/StatusMessages.php \Drupal\Core\Render\Element\StatusMessages::generatePlaceholder()

#pre_render callback to generate a placeholder.

Parameters

array $element: A renderable array.

Return value

array The updated renderable array containing the placeholder.

File

core/lib/Drupal/Core/Render/Element/StatusMessages.php, line 48

Class

StatusMessages

Provides a messages element.

Namespace

Drupal\Core\Render\Element

Code

public static function generatePlaceholder(array $element) {
    $build = [
        '#lazy_builder' => [
            self::class . '::renderMessages',
            [
                $element['#display'],
            ],
        ],
        '#create_placeholder' => TRUE,
    ];
    // Directly create a placeholder as we need this to be placeholdered
    // regardless if this is a POST or GET request.
    // @todo remove this when https://www.drupal.org/node/2367555 lands.
    $build = \Drupal::service('render_placeholder_generator')->createPlaceholder($build);
    if ($element['#include_fallback']) {
        return [
            'fallback' => [
                '#markup' => '<div data-drupal-messages-fallback class="hidden"></div>',
            ],
            'messages' => $build,
        ];
    }
    return $build;
}

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