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),
    ];
}