function NavigationHooks::pageTop

Implements hook_page_top().

File

core/modules/navigation/src/Hook/NavigationHooks.php, line 46

Class

NavigationHooks

Hook implementations for navigation.

Namespace

Code

public function pageTop(array &$page_top) : void {
    if (!\Drupal::currentUser()->hasPermission('access navigation')) {
        return;
    }
    $navigation_renderer = \Drupal::service('navigation.renderer');
    assert($navigation_renderer instanceof NavigationRenderer);
    $navigation_renderer->removeToolbar($page_top);
    if (\Drupal::routeMatch()->getRouteName() !== 'layout_builder.navigation.view') {
        // Don't render the admin toolbar if in layout edit mode.
        $navigation_renderer->buildNavigation($page_top);
        $navigation_renderer->buildTopBar($page_top);
        return;
    }
    // But if in layout mode, add an empty element to leave space. We need to use
    // an empty .admin-toolbar element because the css uses the adjacent sibling
    // selector. The actual rendering of the navigation blocks/layout occurs in
    // the layout form.
    $page_top['navigation'] = [
        '#type' => 'html_tag',
        '#tag' => 'aside',
        '#attributes' => [
            'class' => 'admin-toolbar',
        ],
    ];
    $navigation_renderer->buildTopBar($page_top);
}