AbstractChildItem.php

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<?php

declare(strict_types=1);
namespace ILIAS\GlobalScreen\Scope\MainMenu\Factory;

use ILIAS\GlobalScreen\Identification\IdentificationInterface;
use ILIAS\GlobalScreen\Identification\NullIdentification;

abstract class AbstractChildItem extends AbstractBaseItem
{
    protected $parent;

    public function withParent(IdentificationInterface $identification) : isItem
    {
        $clone = clone($this);
        $clone->parent = $identification;

        return $clone;
    }

    public function hasParent() : bool
    {
        return $this->parent instanceof IdentificationInterface;
    }

    public function getParent() : IdentificationInterface
    {
        return $this->parent instanceof IdentificationInterface ? $this->parent : new NullIdentification();
    }

    public function overrideParent(IdentificationInterface $identification) : isItem
    {
        $this->parent = $identification;

        return $this;
    }
}