remove autoload section in composer.json

[github/wallabag/wallabag.git] / inc / 3rdparty / htmlpurifier / HTMLPurifier / AttrDef / CSS / BackgroundPosition.php

<?php\r
\r
/* W3C says:\r
    [ // adjective and number must be in correct order, even if\r
      // you could switch them without introducing ambiguity.\r
      // some browsers support that syntax\r
        [\r
            <percentage> | <length> | left | center | right\r
        ]\r
        [\r
            <percentage> | <length> | top | center | bottom\r
        ]?\r
    ] |\r
    [ // this signifies that the vertical and horizontal adjectives\r
      // can be arbitrarily ordered, however, there can only be two,\r
      // one of each, or none at all\r
        [\r
            left | center | right\r
        ] ||\r
        [\r
            top | center | bottom\r
        ]\r
    ]\r
    top, left = 0%\r
    center, (none) = 50%\r
    bottom, right = 100%\r
*/\r
\r
/* QuirksMode says:\r
    keyword + length/percentage must be ordered correctly, as per W3C\r
\r
    Internet Explorer and Opera, however, support arbitrary ordering. We\r
    should fix it up.\r
\r
    Minor issue though, not strictly necessary.\r
*/\r
\r
// control freaks may appreciate the ability to convert these to\r
// percentages or something, but it's not necessary\r
\r
/**\r
 * Validates the value of background-position.\r
 */\r
class HTMLPurifier_AttrDef_CSS_BackgroundPosition extends HTMLPurifier_AttrDef\r
{\r
\r
    /**\r
     * @type HTMLPurifier_AttrDef_CSS_Length\r
     */\r
    protected $length;\r
\r
    /**\r
     * @type HTMLPurifier_AttrDef_CSS_Percentage\r
     */\r
    protected $percentage;\r
\r
    public function __construct()\r
    {\r
        $this->length = new HTMLPurifier_AttrDef_CSS_Length();\r
        $this->percentage = new HTMLPurifier_AttrDef_CSS_Percentage();\r
    }\r
\r
    /**\r
     * @param string $string\r
     * @param HTMLPurifier_Config $config\r
     * @param HTMLPurifier_Context $context\r
     * @return bool|string\r
     */\r
    public function validate($string, $config, $context)\r
    {\r
        $string = $this->parseCDATA($string);\r
        $bits = explode(' ', $string);\r
\r
        $keywords = array();\r
        $keywords['h'] = false; // left, right\r
        $keywords['v'] = false; // top, bottom\r
        $keywords['ch'] = false; // center (first word)\r
        $keywords['cv'] = false; // center (second word)\r
        $measures = array();\r
\r
        $i = 0;\r
\r
        $lookup = array(\r
            'top' => 'v',\r
            'bottom' => 'v',\r
            'left' => 'h',\r
            'right' => 'h',\r
            'center' => 'c'\r
        );\r
\r
        foreach ($bits as $bit) {\r
            if ($bit === '') {\r
                continue;\r
            }\r
\r
            // test for keyword\r
            $lbit = ctype_lower($bit) ? $bit : strtolower($bit);\r
            if (isset($lookup[$lbit])) {\r
                $status = $lookup[$lbit];\r
                if ($status == 'c') {\r
                    if ($i == 0) {\r
                        $status = 'ch';\r
                    } else {\r
                        $status = 'cv';\r
                    }\r
                }\r
                $keywords[$status] = $lbit;\r
                $i++;\r
            }\r
\r
            // test for length\r
            $r = $this->length->validate($bit, $config, $context);\r
            if ($r !== false) {\r
                $measures[] = $r;\r
                $i++;\r
            }\r
\r
            // test for percentage\r
            $r = $this->percentage->validate($bit, $config, $context);\r
            if ($r !== false) {\r
                $measures[] = $r;\r
                $i++;\r
            }\r
        }\r
\r
        if (!$i) {\r
            return false;\r
        } // no valid values were caught\r
\r
        $ret = array();\r
\r
        // first keyword\r
        if ($keywords['h']) {\r
            $ret[] = $keywords['h'];\r
        } elseif ($keywords['ch']) {\r
            $ret[] = $keywords['ch'];\r
            $keywords['cv'] = false; // prevent re-use: center = center center\r
        } elseif (count($measures)) {\r
            $ret[] = array_shift($measures);\r
        }\r
\r
        if ($keywords['v']) {\r
            $ret[] = $keywords['v'];\r
        } elseif ($keywords['cv']) {\r
            $ret[] = $keywords['cv'];\r
        } elseif (count($measures)) {\r
            $ret[] = array_shift($measures);\r
        }\r
\r
        if (empty($ret)) {\r
            return false;\r
        }\r
        return implode(' ', $ret);\r
    }\r
}\r
\r
// vim: et sw=4 sts=4\r