1: <?php
2:
3: 4: 5:
6: class HTMLPurifier_AttrDef_HTML_Pixels extends HTMLPurifier_AttrDef
7: {
8:
9: protected $max;
10:
11: public function __construct($max = null) {
12: $this->max = $max;
13: }
14:
15: public function validate($string, $config, $context) {
16:
17: $string = trim($string);
18: if ($string === '0') return $string;
19: if ($string === '') return false;
20: $length = strlen($string);
21: if (substr($string, $length - 2) == 'px') {
22: $string = substr($string, 0, $length - 2);
23: }
24: if (!is_numeric($string)) return false;
25: $int = (int) $string;
26:
27: if ($int < 0) return '0';
28:
29:
30:
31:
32:
33: if ($this->max !== null && $int > $this->max) return (string) $this->max;
34:
35: return (string) $int;
36:
37: }
38:
39: public function make($string) {
40: if ($string === '') $max = null;
41: else $max = (int) $string;
42: $class = get_class($this);
43: return new $class($max);
44: }
45:
46: }
47:
48:
49: