mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-12-25 08:21:51 +00:00
29 lines
696 B
PHP
29 lines
696 B
PHP
|
<?php
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Pre-transform that changes proprietary background attribute to CSS.
|
||
|
|
*/
|
||
|
|
class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* @param array $attr
|
||
|
|
* @param HTMLPurifier_Config $config
|
||
|
|
* @param HTMLPurifier_Context $context
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function transform($attr, $config, $context)
|
||
|
|
{
|
||
|
|
if (!isset($attr['background'])) {
|
||
|
|
return $attr;
|
||
|
|
}
|
||
|
|
|
||
|
|
$background = $this->confiscateAttr($attr, 'background');
|
||
|
|
// some validation should happen here
|
||
|
|
|
||
|
|
$this->prependCSS($attr, "background-image:url($background);");
|
||
|
|
return $attr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// vim: et sw=4 sts=4
|