File xoops_lib\modules\protector\library\HTMLPurifier\AttrDef\CSS\ImportantDecorator.php

1:	<?php
2:
3:	/**
4:	* Decorator which enables !important to be used in CSS values.
5:	*/
6:	class HTMLPurifier_AttrDef_CSS_ImportantDecorator extends HTMLPurifier_AttrDef
7:	{
8:	/**
9:	* @type HTMLPurifier_AttrDef
10:	*/
11:	public $def;
12:	/**
13:	* @type bool
14:	*/
15:	public $allow;
16:
17:	/**
18:	* @param HTMLPurifier_AttrDef $def Definition to wrap
19:	* @param bool $allow Whether or not to allow !important
20:	*/
21:	public function __construct($def, $allow = false)
22:	{
23:	$this->def = $def;
24:	$this->allow = $allow;
25:	}
26:
27:	/**
28:	* Intercepts and removes !important if necessary
29:	* @param string $string
30:	* @param HTMLPurifier_Config $config
31:	* @param HTMLPurifier_Context $context
32:	* @return bool\|string
33:	*/
34:	public function validate($string, $config, $context)
35:	{
36:	// test for ! and important tokens
37:	$string = trim($string);
38:	$is_important = false;
39:	// :TODO: optimization: test directly for !important and ! important
40:	if (strlen($string) >= 9 && substr($string, -9) === 'important') {
41:	$temp = rtrim(substr($string, 0, -9));
42:	// use a temp, because we might want to restore important
43:	if (strlen($temp) >= 1 && substr($temp, -1) === '!') {
44:	$string = rtrim(substr($temp, 0, -1));
45:	$is_important = true;
46:	}
47:	}
48:	$string = $this->def->validate($string, $config, $context);
49:	if ($this->allow && $is_important) {
50:	$string .= ' !important';
51:	}
52:	return $string;
53:	}
54:	}
55:
56:	// vim: et sw=4 sts=4
57: