<?php
/**
 * Tag converter
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package wb
 * @subpackage Markup
 */

WBClass::load('WBMarkup_Converter');

/**
 * Tag converter
 *
 * Convert node to node
 *
 * @version 0.5.0
 * @package wb
 * @subpackage Markup
 */
class WBMarkup_Converter_Wb_Url extends WBMarkup_Converter
{
    /**
     * URL dictionary 
     * @var WBDictionary_Url
     */
    protected $dict;
    
    /**
     * constructor
     * 
     * start dictionary
     */
    public function __construct()
    {
        $this->dict   =   WBClass::create('WBDictionary_URL');
    }
    
   /**
    * transform Xinha Tags to XML
    *
    * @todo solve problem with internal but SSL links
    * @todo implement VFSFile links
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toXml(&$node)
    {
        $xml    =   array(
                            'ns'            =>  'wb',
                            'tag'           =>  'url',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  $node['isEmpty'],
                            'cData'         =>  $node['cData']
                        );

        
        if (empty($node['attributes']['urlid'])) {
            // try to create a new URLid using given URL
            if (empty($node['attributes']['href'])) {
                return false;
            }
            $this->dict->addWord($node['attributes']['href']);
            $node['attributes']['urlid']    =   $this->dict->getId();
        }
        
        $this->dict->load($node['attributes']['urlid']);
        
        $atts   =   array(        
                    'title'     =>  $node['attributes']['wb:value'],
                    'urlid'     =>  $this->dict->getId()
                    );
        if (isset($node['attributes']['class'])) {
            $atts['class']  =   $node['attributes']['class'];
        }
        
        $xml['attributes']  =   $atts;
        $node               =   $xml;
        return true;
    }
    
   /**
    * transform Xml to Wxml (html) tags
    *
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toWxml(&$node)
    {
        $wxml  =   array(
                            'ns'            =>  '',
                            'tag'           =>  'a',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  $node['isEmpty'],
                            'cData'         =>  $node['cData']
                        );

        $this->dict->load($node['attributes']['urlid']);
                        
        $atts   =   array(
                    'wb:dialog' =>  'url',
                    'wb:value'  =>  $node['attributes']['title'],
                    'href'      =>  $this->dict->getWord(),
                    'urlid'     =>  $this->dict->getid(),
                    'target'    =>  '_blank'
                    );
        $atts   =   array_merge($this->getDefaultAttributes(WBMarkup_Converter::TARGET_WXML), $atts);
                    
        $data   =   $this->dict->get();
        if ($data['protocol'] != 'self') {
            $atts['target']     =   '_blank';
        }
        if (isset($node['attributes']['class'])) {
            $atts['class']  =   $node['attributes']['class'];
        }

        $node               =   $wxml;
        $node['attributes'] =   $atts;
        return true;
    }
    
   /**
    * transform XML to Html
    *
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toHtml(&$node)
    {
        $this->dict->load($node['attributes']['urlid']);
        
        // html attributes
        $node['ns']     =   '';
        $node['tag']    =   'a';
        $atts           =   array(
                                'title'     =>  $node['attributes']['title'],
                                'href'      =>  $this->dict->getWord(),
                            );
        if (isset($node['attributes']['class']) && strlen($node['attributes']['class'])) {
            $atts['class']  =   $node['attributes']['class'];
        }
        
        $data   =   $this->dict->get();
        
        // mailto
        if ($data['protocol'] == 'mailto') {
            $atts['maillocal']      =   $data['path'];
            $atts['mailhost']       =   $data['host'];
            $atts['href']           =   sprintf('mailto:%s@example.com', $data['path']);
            $atts['onmouseover']    =   'new WB.Obfuscate.Mailto(this).illuminate();';
            $cData                  =   implode("\n", $node['cData']);
            $cData                  =   str_replace($this->dict->getWord(), $data['path'] . '(at)' . $data['host'], $cData);
            $node['cData']          =   array($cData);
            $node['attributes']     =   $atts;
            
            WBClass::load('WBHtml_JS');
            WBHtml_JS::add('WB/Obfuscate');
            WBHtml_JS::add('WB/Obfuscate/Mailto');
            return true;
        }

        // others
        if ($data['protocol'] != 'self') {
            $atts['target']     =   '_blank';
            $node['attributes'] =   $atts;
            return true;
        }
        
        // normal internal link
        if (strncmp('[[SERVICE_FILE]]', $data['path'], 16) != 0) {
            $node['attributes'] =   $atts;
            return true;
        }
        
        // VFSFile
        $class          =   array();
        if (isset($atts['class'])) {
            $class[]    =   $atts['class'];                    
        }                
        // add mime type to class
        $href   =   explode('/', $data['path']);
        if (count($href) > 1) {
            $class[]    =   $href[1];
        }
        if (!empty($class)) {
            $atts['class']  =   implode(' ', $class);
        }
        
        $node['attributes'] =   $atts;
        return true;        
    }
}