ToolIdentificationProvider.php

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<?php

declare(strict_types=1);
namespace ILIAS\GlobalScreen\Identification;

use LogicException;
class ToolIdentificationProvider extends CoreIdentificationProvider implements ToolIdentificationProviderInterface
{
    public function contextAwareIdentifier(string $identifier_string, bool $ignore_context = false) : IdentificationInterface
    {
        if ($ignore_context) {
            return parent::identifier($identifier_string);
        }
        global $DIC;

        $get = $DIC->http()->request()->getQueryParams();
        if (isset($get['ref_id'])) {
            $identifier_string .= '_' . $get['ref_id'];
        }

        return parent::identifier($identifier_string);
    }

    public function identifier(string $identifier_string) : IdentificationInterface
    {
        throw new LogicException('Tools must use contextAwareIdentifier');
    }
}