TYPO3 13 - Der Seitenbaum

				
					
<?php
				
					

				
					
declare(strict_types=1);
				
					

				
					
namespace StudioMitte\Theme\EventListener;
				
					

				
					
use TYPO3\CMS\Backend\Controller\Event\AfterPageTreeItemsPreparedEvent;
				
					
use TYPO3\CMS\Backend\Dto\Tree\Label\Label;
				
					
use TYPO3\CMS\Core\Attribute\AsEventListener;
				
					

				
					
#[AsEventListener]
				
					
final readonly class ModifyPageTreeItems
				
					
{
				
					
    private const array LABELS = [
				
					
        123 => [
				
					
            'label' => 'Seite 1',
				
					
            'color' => '#297D7A',
				
					
        ],
				
					
        456 => [
				
					
            'label' => 'Seite 2',
				
					
            'color' => '#323936',
				
					
        ],
				
					
    ];
				
					

				
					
    public function __invoke(AfterPageTreeItemsPreparedEvent $event): void
				
					
    {
				
					
        $items = $event->getItems();
				
					
        foreach ($items as &$item) {
				
					
            $pid = $item['_page']['pid'] ?? null;
				
					
            if (isset(self::LABELS[$pid])) {
				
					
                $item['labels'][] = new Label(
				
					
                    label: self::LABELS[$pid]['label'],
				
					
                    color: self::LABELS[$pid]['color'],
				
					
                    priority: 1,
				
					
                );
				
					
            }
				
					
        }
				
					
        $event->setItems($items);
				
					
    }
				
					
}