jidaikobo-shibata/a11yc

<?php
/**
 * * A11yc\Validate\Check\MeanlessElement
 *
 * @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 MeanlessElement extends Validate
{
    /**
     * meanless element
     *
     * @param String $url
     * @return Void
     */
    public static function check($url)
    {
        Validate\Set::log($url, 'meanless_element', self::$unspec, 1);
        Validate\Set::log($url, 'meanless_element_timing', self::$unspec, 1);
        $str = Element\Get::ignoredHtml($url);

        $banneds = array(
            'big',
            'tt',
            'center',
            'font',
            'blink',
            'marquee',
//            'b',
            'i',
            'u',
            's',
            'strike',
            'basefont',
        );

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

        $n = 0;
        foreach ($ms[0] as $m)
        {
            foreach ($banneds as $banned)
            {
                preg_match_all('/\<'.$banned.' [^\>]*?\>|\<'.$banned.'\>/', $m, $mms);
                if ( ! $mms[0]) continue;
                foreach ($mms[0] as $tag)
                {
                    if (strpos($tag, '<blink') !== false || strpos($tag, '<marquee') !== false )
                    {
                        Validate\Set::error($url, 'meanless_element_timing', $n, $tag, $tag);
                    }
                    else
                    {
                        Validate\Set::error($url, 'meanless_element', $n, $tag, $tag);
                    }
                    $n++;
                }
            }
        }
        static::addErrorToHtml($url, 'meanless_element', static::$error_ids[$url], 'ignores');
    }
}