AbstractParentItem.php

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<?php namespace ILIAS\GlobalScreen\Scope\MainMenu\Factory;
 
abstract class AbstractParentItem extends AbstractBaseItem implements isParent
{
 
    protected $children = [];
 
    public function getChildren() : array
    {
        return $this->children;
    }
 
    public function withChildren(array $children) : isParent
    {
        $clone = clone($this);
        $clone->children = $children;
 
        return $clone;
    }
 
    public function appendChild(isChild $child) : isParent
    {
        $this->children[] = $child;
 
        return $this;
    }
 
    public function hasChildren() : bool
    {
        return (count($this->children) > 0);
    }
 
    public function removeChild(isChild $child_to_remove) : isParent
    {
        $this->children = array_filter($this->children, static function (isItem $item) use ($child_to_remove) : bool {
            return $item !== $child_to_remove;
        });
 
        return $this;
    }
}