LabeledMenu.php

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<?php
declare(strict_types=1);

/* Copyright (c) 2019 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */

namespace ILIAS\UI\Implementation\Component\Menu;

use ILIAS\UI\Component as Component;
use ILIAS\UI\Component\Menu as IMenu;
use ILIAS\UI\Implementation\Component\ComponentHelper;

abstract class LabeledMenu extends Menu implements IMenu\LabeledMenu
{
    protected $label;

    public function getLabel()
    {
        return $this->label;
    }

    public function withLabel($label) : IMenu\LabeledMenu
    {
        $this->checkLabelParameter($label);
        $clone = clone $this;
        $clone->label = $label;
        return $clone;
    }

    protected function checkLabelParameter($label)
    {
        $classes = [Component\Clickable::class, "string"];
        $check = [$label];
        $this->checkArgListElements("label", $check, $classes);
    }
}