library/HTMLPurifier/ChildDef/Chameleon.php

   1 <?php
   2
   3 /**
   4  * Definition that uses different definitions depending on context.
   5  *
   6  * The del and ins tags are notable because they allow different types of
   7  * elements depending on whether or not they're in a block or inline context.
   8  * Chameleon allows this behavior to happen by using two different
   9  * definitions depending on context.  While this somewhat generalized,
  10  * it is specifically intended for those two tags.
  11  */
  12 class HTMLPurifier_ChildDef_Chameleon extends HTMLPurifier_ChildDef
  13 {
  14
  15     /**
  16      * Instance of the definition object to use when inline. Usually stricter.
  17      */
  18     public $inline;
  19
  20     /**
  21      * Instance of the definition object to use when block.
  22      */
  23     public $block;
  24
  25     public $type = 'chameleon';
  26
  27     /**
  28      * @param $inline List of elements to allow when inline.
  29      * @param $block List of elements to allow when block.
  30      */
  31     public function __construct($inline, $block) {
  32         $this->inline = new HTMLPurifier_ChildDef_Optional($inline);
  33         $this->block  = new HTMLPurifier_ChildDef_Optional($block);
  34         $this->elements = $this->block->elements;
  35     }
  36
  37     public function validateChildren($tokens_of_children, $config, $context) {
  38         if ($context->get('IsInline') === false) {
  39             return $this->block->validateChildren(
  40                 $tokens_of_children, $config, $context);
  41         } else {
  42             return $this->inline->validateChildren(
  43                 $tokens_of_children, $config, $context);
  44         }
  45     }
  46 }
  47
  48 // vim: et sw=4 sts=4