<?php

/**
 * This file is part of the Kdyby (http://www.kdyby.org)
 *
 * Copyright (c) 2008, 2011 Filip Procházka ([email protected])
 *
 * @license http://www.kdyby.org/license
 */

namespace Kdyby\Iterators;

use Kdyby;
use Nette;



/**
 * @author Filip Procházka
 */
class CollectIterator extends \FilterIterator
{

    /** @var callback[] */
    private $collector;



    /**
     * @param callable $callback
     * @return CollectIterator
     */
    public function collect($callback)
    {
        $this->collector[] = $callback;
        return $this;
    }



    /**
     * @return boolean
     */
    public function accept()
    {
        foreach ($this->collector as $filter) {
            if (!$filter($this)) {
                return FALSE;
            }
        }

        return TRUE;
    }

}