library/HTMLPurifier/AttrTransform/Length.php

   1 <?php
   2
   3 require_once 'HTMLPurifier/AttrTransform.php';
   4
   5 /**
   6  * Class for handling width/height length attribute transformations to CSS
   7  */
   8 class HTMLPurifier_AttrTransform_Length extends HTMLPurifier_AttrTransform
   9 {
  10
  11     protected $name;
  12     protected $cssName;
  13
  14     public function __construct($name, $css_name = null) {
  15         $this->name = $name;
  16         $this->cssName = $css_name ? $css_name : $name;
  17     }
  18
  19     public function transform($attr, $config, $context) {
  20         if (!isset($attr[$this->name])) return $attr;
  21         $length = $this->confiscateAttr($attr, $this->name);
  22         if(ctype_digit($length)) $length .= 'px';
  23         $this->prependCSS($attr, $this->cssName . ":$length;");
  24         return $attr;
  25     }
  26
  27 }
  28