library/HTMLPurifier/AttrDef/CSS/Composite.php

   1 <?php
   2
   3 /**
   4  * Allows multiple validators to attempt to validate attribute.
   5  *
   6  * Composite is just what it sounds like: a composite of many validators.
   7  * This means that multiple HTMLPurifier_AttrDef objects will have a whack
   8  * at the string.  If one of them passes, that's what is returned.  This is
   9  * especially useful for CSS values, which often are a choice between
  10  * an enumerated set of predefined values or a flexible data type.
  11  */
  12 class HTMLPurifier_AttrDef_CSS_Composite extends HTMLPurifier_AttrDef
  13 {
  14
  15     /**
  16      * List of objects that may process strings.
  17      * @type HTMLPurifier_AttrDef[]
  18      * @todo Make protected
  19      */
  20     public $defs;
  21
  22     /**
  23      * @param HTMLPurifier_AttrDef[] $defs List of HTMLPurifier_AttrDef objects
  24      */
  25     public function __construct($defs)
  26     {
  27         $this->defs = $defs;
  28     }
  29
  30     /**
  31      * @param string $string
  32      * @param HTMLPurifier_Config $config
  33      * @param HTMLPurifier_Context $context
  34      * @return bool|string
  35      */
  36     public function validate($string, $config, $context)
  37     {
  38         foreach ($this->defs as $i => $def) {
  39             $result = $this->defs[$i]->validate($string, $config, $context);
  40             if ($result !== false) {
  41                 return $result;
  42             }
  43         }
  44         return false;
  45     }
  46 }
  47
  48 // vim: et sw=4 sts=4