library/HTMLPurifier/AttrTransform/BoolToCSS.php

   1 <?php
   2
   3 /**
   4  * Pre-transform that changes converts a boolean attribute to fixed CSS
   5  */
   6 class HTMLPurifier_AttrTransform_BoolToCSS extends HTMLPurifier_AttrTransform
   7 {
   8     /**
   9      * Name of boolean attribute that is trigger.
  10      * @type string
  11      */
  12     protected $attr;
  13
  14     /**
  15      * CSS declarations to add to style, needs trailing semicolon.
  16      * @type string
  17      */
  18     protected $css;
  19
  20     /**
  21      * @param string $attr attribute name to convert from
  22      * @param string $css CSS declarations to add to style (needs semicolon)
  23      */
  24     public function __construct($attr, $css)
  25     {
  26         $this->attr = $attr;
  27         $this->css = $css;
  28     }
  29
  30     /**
  31      * @param array $attr
  32      * @param HTMLPurifier_Config $config
  33      * @param HTMLPurifier_Context $context
  34      * @return array
  35      */
  36     public function transform($attr, $config, $context)
  37     {
  38         if (!isset($attr[$this->attr])) {
  39             return $attr;
  40         }
  41         unset($attr[$this->attr]);
  42         $this->prependCSS($attr, $this->css);
  43         return $attr;
  44     }
  45 }
  46
  47 // vim: et sw=4 sts=4