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     public function transform($attr, $config, $context) {
   9
  10         if (!isset($attr['background'])) return $attr;
  11
  12         $background = $this->confiscateAttr($attr, 'background');
  13         // some validation should happen here
  14
  15         $this->prependCSS($attr, "background-image:url($background);");
  16
  17         return $attr;
  18
  19     }
  20
  21 }
  22
  23 // vim: et sw=4 sts=4