NullBaseNavigator.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\MetaData\Paths\Navigator;
 
use ILIAS\MetaData\Paths\Steps\NullStep;
use ILIAS\MetaData\Paths\Steps\StepInterface;
 
class NullBaseNavigator implements BaseNavigatorInterface
{
    public function nextStep(): ?BaseNavigatorInterface
    {
        return new NullBaseNavigator();
    }
 
    public function currentStep(): ?StepInterface
    {
        return new NullStep();
    }
 
    public function previousStep(): ?BaseNavigatorInterface
    {
        return new NullBaseNavigator();
    }
 
    public function hasNextStep(): bool
    {
        return false;
    }
 
    public function hasPreviousStep(): bool
    {
        return false;
    }
 
    public function hasElements(): bool
    {
        return false;
    }
}