NavigationTopBarHooks.php

<?php

namespace Drupal\navigation_top_bar\Hook;

use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Hook\Attribute\Hook;

/**
 * Hook implementations for navigation_top_bar.
 */
class NavigationTopBarHooks {
    
    /**
     * Implements hook_help().
     */
    public function help($route_name, RouteMatchInterface $route_match) {
        switch ($route_name) {
            case 'help.page.navigation_top_bar':
                $output = '<h2>' . t('About') . '</h2>';
                $output .= '<p>' . t('The Navigation Top Bar module is a Feature Flag module which, when enabled, renders the experimental navigation top bar.') . '</p>';
                $output .= '<p>' . t('The top bar provides relevant administrative information and tasks for the current page. It is not feature complete nor fully functional.') . '</p>';
                $output .= '<p>' . t('Leaving this module enabled can affect both admin and front-end pages layouts and blocks like Primary admin actions, whose content might be moved to te top bar.') . '</p>';
                $output .= '<p>' . t('It is recommended to leave this module off while it is under active development and experimental phase.') . '</p>';
                $output .= '<p>' . t('For more information, see the <a href=":docs">online documentation for the Navigation Top Bar module</a>.', [
                    ':docs' => 'https://www.drupal.org/project/navigation',
                ]) . '</p>';
                return $output;
        }
    }

}