function TopBar::preRenderTopBar

Builds the TopBar as a structured array ready for rendering.

Since building the TopBar takes some time, it is done just prior to rendering to ensure that it is built only if it will be displayed.

Parameters

array $element: A renderable array.

Return value

array A renderable array.

See also

navigation_page_top()

File

core/modules/navigation/src/Element/TopBar.php, line 50

Class

TopBar

Provides a render element for the default Drupal toolbar.

Namespace

Drupal\navigation\Element

Code

public static function preRenderTopBar($element) : array {
    $top_bar_item_manager = static::topBarItemManager();
    // Group the items by region.
    foreach (TopBarRegion::cases() as $region) {
        $items = $top_bar_item_manager->getRenderedTopBarItemsByRegion($region);
        $element = array_merge($element, [
            $region->value => $items,
        ]);
    }
    return $element;
}