function toolbar_get_rendered_subtrees

Returns the rendered subtree of each top-level toolbar link.

Return value

array An array with the following key-value pairs:

• 'subtrees': the rendered subtrees
• 'cacheability: the associated cacheability.

File

core/modules/toolbar/toolbar.module, line 267

Code

function toolbar_get_rendered_subtrees() {
  $data = [
    '#pre_render' => [
      [
        ToolbarController::class,
        'preRenderGetRenderedSubtrees',
      ],
    ],
    '#cache' => [
      'keys' => [
        'toolbar_rendered_subtrees',
      ],
    ],
    '#cache_properties' => [
      '#subtrees',
    ],
  ];
  /** @var \Drupal\Core\Render\Renderer $renderer */
  $renderer = \Drupal::service('renderer');
  // The pre_render process populates $data during the render pipeline.
  // We need to pass by reference so that populated data can be returned and
  // used to resolve cacheability.
  $renderer->executeInRenderContext(new RenderContext(), function () use ($renderer, &$data) {
    $renderer->render($data);
  });
  return [
    $data['#subtrees'],
    CacheableMetadata::createFromRenderArray($data),
  ];
}