jidaikobo-shibata/a11yc

<?php
/**
 * * A11yc\Validate\Check\CssContent
 *
 * @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;
use A11yc\Model;

class CssContent extends Validate
{
    /**
     * check content
     *
     * @param String $url
     * @return Void
     */
    public static function check($url)
    {
        Validate\Set::log($url, 'css_is_meanfull_content', self::$unspec, 5);
        if ( ! static::$do_css_check) return;
        Validate\Set::log($url, 'css_is_meanfull_content', self::$unspec, 1);

        $csses = static::css($url);
        if (empty($csses))
        {
            Validate\Set::log($url, 'css_is_meanfull_content', self::$unspec, 4);
            return;
        }

        $is_exists = false;
        $k = 0;
        foreach ($csses as $each_csses)
        {
            foreach ($each_csses as $selector => $props)
            {
                if ( ! isset($props['content'])) continue;
                $is_exists = true;
                if (
                    in_array(
                        $props['content'],
                        array("''", '""', '.', 'none', '"."', "'.'", '" "', "' '")
                    )
                )
                {
                    continue; // clearfix or none
                }
                if (in_array(substr($props['content'], 0, 2), array("'\\", '"\\'))) continue; // decoration
                $tstr = $selector.': '.Util::s($props['content']);
                Validate\Set::error($url, 'css_is_meanfull_content', $k, '', $tstr);
                $k++;
            }
        }

        if ( ! $is_exists)
        {
            Validate\Set::log($url, 'css_is_meanfull_content', self::$unspec, 4);
        }

    }
}