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   1  <?php
   2  
   3  /**
   4   * Class for handling width/height length attribute transformations to CSS
   5   */
   6  class HTMLPurifier_AttrTransform_Length extends HTMLPurifier_AttrTransform
   7  {
   8  
   9      /**
  10       * @type string
  11       */
  12      protected $name;
  13  
  14      /**
  15       * @type string
  16       */
  17      protected $cssName;
  18  
  19      public function __construct($name, $css_name = null)
  20      {
  21          $this->name = $name;
  22          $this->cssName = $css_name ? $css_name : $name;
  23      }
  24  
  25      /**
  26       * @param array $attr
  27       * @param HTMLPurifier_Config $config
  28       * @param HTMLPurifier_Context $context
  29       * @return array
  30       */
  31      public function transform($attr, $config, $context)
  32      {
  33          if (!isset($attr[$this->name])) {
  34              return $attr;
  35          }
  36          $length = $this->confiscateAttr($attr, $this->name);
  37          if (ctype_digit($length)) {
  38              $length .= 'px';
  39          }
  40          $this->prependCSS($attr, $this->cssName . ":$length;");
  41          return $attr;
  42      }
  43  }
  44  
  45  // vim: et sw=4 sts=4