library/HTMLPurifier/AttrTransform/Background.php

   1 <?php
   2
   3 /**
   4  * Pre-transform that changes proprietary background attribute to CSS.
   5  */
   6 class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform
   7 {
   8     /**
   9      * @param array $attr
  10      * @param HTMLPurifier_Config $config
  11      * @param HTMLPurifier_Context $context
  12      * @return array
  13      */
  14     public function transform($attr, $config, $context)
  15     {
  16         if (!isset($attr['background'])) {
  17             return $attr;
  18         }
  19
  20         $background = $this->confiscateAttr($attr, 'background');
  21         // some validation should happen here
  22
  23         $this->prependCSS($attr, "background-image:url($background);");
  24         return $attr;
  25     }
  26 }
  27
  28 // vim: et sw=4 sts=4