library/HTMLPurifier/AttrDef/Switch.php

   1 <?php
   2
   3 /**
   4  * Decorator that, depending on a token, switches between two definitions.
   5  */
   6 class HTMLPurifier_AttrDef_Switch
   7 {
   8
   9     protected $tag;
  10     protected $withTag, $withoutTag;
  11
  12     /**
  13      * @param string $tag Tag name to switch upon
  14      * @param HTMLPurifier_AttrDef $with_tag Call if token matches tag
  15      * @param HTMLPurifier_AttrDef $without_tag Call if token doesn't match, or there is no token
  16      */
  17     public function __construct($tag, $with_tag, $without_tag) {
  18         $this->tag = $tag;
  19         $this->withTag = $with_tag;
  20         $this->withoutTag = $without_tag;
  21     }
  22
  23     public function validate($string, $config, $context) {
  24         $token = $context->get('CurrentToken', true);
  25         if (!$token || $token->name !== $this->tag) {
  26             return $this->withoutTag->validate($string, $config, $context);
  27         } else {
  28             return $this->withTag->validate($string, $config, $context);
  29         }
  30     }
  31
  32 }
  33
  34 // vim: et sw=4 sts=4