Location: PHPKode > projects > Volunteer Management OpenSource Software > vmoss_alpha02/3rd/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgSpace.php
<?php

require_once 'HTMLPurifier/AttrTransform.php';

/**
 * Pre-transform that changes deprecated hspace and vspace attributes to CSS
 */
class HTMLPurifier_AttrTransform_ImgSpace
extends HTMLPurifier_AttrTransform {
    
    var $attr;
    var $css = array(
        'hspace' => array('left', 'right'),
        'vspace' => array('top', 'bottom')
    );
    
    function HTMLPurifier_AttrTransform_ImgSpace($attr) {
        $this->attr = $attr;
        if (!isset($this->css[$attr])) {
            trigger_error(htmlspecialchars($attr) . ' is not valid space attribute');
        }
    }
    
    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;
        
    }
    
}

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