jidaikobo-shibata/a11yc

<?php
/**
 * * A11yc\Validate\Check\DuplicatedIdsAndAccesskey
 *
 * @package    part of A11yc
 * @author     Jidaikobo Inc.
 * @license    The MIT License (MIT)
 * @copyright  Jidaikobo Inc.
 * @link       http://www.jidaikobo.com
 */
namespace A11yc\Validate\Check;

use A11yc\Element;
use A11yc\Validate;

class DuplicatedIdsAndAccesskey extends Validate
{
    /**
     * duplicated ids and accesskey
     *
     * @param String $url
     * @return Void
     */
    public static function check($url)
    {
        Validate\Set::log($url, 'duplicated_ids', self::$unspec, 1);
        Validate\Set::log($url, 'duplicated_accesskeys', self::$unspec, 1);
        $str = Element\Get::ignoredHtml($url);

        $ms = Element\Get::elementsByRe($str, 'ignores', 'tags');
        if ( ! $ms[0]) return;

        $is_exists_id = false;
        $is_exists_ack = false;
        $ids = array();
        $accesskeys = array();
        foreach ($ms[0] as $k => $m)
        {
            $attrs = Element\Get::attributes($m);
            $tstr = $ms[0][$k];

            // duplicated_ids
            if (isset($attrs['id']))
            {
                $is_exists_id = true;
                if (in_array($attrs['id'], $ids))
                {
                    Validate\Set::error($url, 'duplicated_ids', $k, $tstr, $attrs['id']);
                }
                $ids[] = $attrs['id'];
            }

            // duplicated_accesskeys
            if (isset($attrs['accesskey']))
            {
                $is_exists_ack = true;
                if (in_array($attrs['accesskey'], $accesskeys))
                {
                    Validate\Set::error($url, 'duplicated_accesskeys', $k, $tstr, $attrs['accesskey']);
                }
                $accesskeys[] = $attrs['accesskey'];
            }
        }

        $duplicated_ids_flag = $is_exists_id ? 3 : 4;
        $duplicated_accesskeys_flag = $is_exists_ack ? 3 : 4;
        Validate\Set::log($url, 'duplicated_ids', self::$unspec, $duplicated_ids_flag);
        Validate\Set::log($url, 'duplicated_accesskeys', self::$unspec, $duplicated_accesskeys_flag);

        static::addErrorToHtml($url, 'duplicated_ids', static::$error_ids[$url], 'ignores');
        static::addErrorToHtml($url, 'duplicated_accesskeys', static::$error_ids[$url], 'ignores');
    }
}