<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\CssSelector\Node;

use Symfony\Component\CssSelector\XPathExpr;

/**

 * ClassNode represents a "selector.className" node.

 *

 * This component is a port of the Python lxml library,

 * which is copyright Infrae and distributed under the BSD license.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class ClassNode implements NodeInterface

{

    protected $selector;

    protected $className;

    /**

     * The constructor.

     *

     * @param NodeInterface $selector The XPath Selector

     * @param string $className The class name

     */

    public function __construct($selector, $className)

    {

        $this->selector = $selector;

        $this->className = $className;

    }

    /**

     * {@inheritDoc}

     */

    public function __toString()

    {

        return sprintf('%s[%s.%s]', __CLASS__, $this->selector, $this->className);

    }

    /**

     * {@inheritDoc}

     */

    public function toXpath()

    {

        $selXpath = $this->selector->toXpath();

        $selXpath->addCondition(sprintf("contains(concat(' ', normalize-space(@class), ' '), %s)", XPathExpr::xpathLiteral(' '.$this->className.' ')));

        return $selXpath;

    }

}