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vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgSpace.php 1.37 KB
70f4f18b   Administrator   first_commit
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  <?php
  
  /**
   * Pre-transform that changes deprecated hspace and vspace attributes to CSS
   */
  class HTMLPurifier_AttrTransform_ImgSpace extends HTMLPurifier_AttrTransform
  {
      /**
       * @type string
       */
      protected $attr;
  
      /**
       * @type array
       */
      protected $css = array(
          'hspace' => array('left', 'right'),
          'vspace' => array('top', 'bottom')
      );
  
      /**
       * @param string $attr
       */
      public function __construct($attr)
      {
          $this->attr = $attr;
          if (!isset($this->css[$attr])) {
              trigger_error(htmlspecialchars($attr) . ' is not valid space attribute');
          }
      }
  
      /**
       * @param array $attr
       * @param HTMLPurifier_Config $config
       * @param HTMLPurifier_Context $context
       * @return array
       */
      public function transform($attr, $config, $context)
      {
          if (!isset($attr[$this->attr])) {
              return $attr;
          }
  
          $width = $this->confiscateAttr($attr, $this->attr);
          // some validation could happen here
  
          if (!isset($this->css[$this->attr])) {
              return $attr;
          }
  
          $style = '';
          foreach ($this->css[$this->attr] as $suffix) {
              $property = "margin-$suffix";
              $style .= "$property:{$width}px;";
          }
          $this->prependCSS($attr, $style);
          return $attr;
      }
  }
  
  // vim: et sw=4 sts=4