LinkListing.php

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<?php

declare(strict_types=1);

namespace ILIAS\UI\Implementation\Component\Table\Column;

use ILIAS\UI\Component\Table\Column as C;
use ILIAS\UI\Component\Link\Standard;
use ILIAS\UI\Component\Listing\Ordered;
use ILIAS\UI\Component\Listing\Unordered;
use ILIAS\UI\Component\Component;

class LinkListing extends Column implements C\LinkListing
{
    public function format($value): string|Component
    {
        $listing = $this->toArray($value);
        $this->checkArgListElements("value", $listing, [Ordered::class, Unordered::class]);
        $listing_items = $value->getItems();
        $this->checkArgListElements("list items", $listing_items, Standard::class);
        return $value;
    }

    public function getOrderingLabels(): array
    {
        return [
            $this->asc_label ?? $this->getTitle() . self::SEPERATOR . $this->lng->txt('order_option_alphabetical_ascending'),
            $this->desc_label ?? $this->getTitle() . self::SEPERATOR . $this->lng->txt('order_option_alphabetical_descending')
        ];
    }
}