<?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 0.1.0
 * @package wb
 * @subpackage Markup
 */
class WBMarkup_Converter_Wb_Smiley extends WBMarkup_Converter
{
   /**
    * transform Xinha Tags to XML
    *
    * @todo implement this method
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toXml(&$node)
    {
        $xml    =   array(
                            'ns'            =>  'wb',
                            'tag'           =>  'smiley',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  false,
                            'cData'         =>  array($node['attributes']['wb:value'])
                        );
                        
        $atts   =   array(
                    'size'      =>  '16',
                    );
                    
        // extract smiley size from class
        if (isset($node['attributes']['class']) && !empty($node['attributes']['class'])) {
            
            $class  =   explode(' ', trim($node['attributes']['class']));
            if (preg_match('/^\smiley(\d+)$/', $class[0], $match)) {
                $atts['size']   =   intval($match[1]);
                array_shift($class);
            }            
        }
                    
        $xml['attributes']  =   $atts;
        $node               =   $xml;
        return true;
                    
    }

   /**
    * transform Xml to Wxml (html) tags
    *
    * @todo implement this method
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toWxml(&$node)
    {
        $wxml  =   array(
                            'ns'            =>  '',
                            'tag'           =>  'img',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  true,
                            'cData'         =>  array()
                        );
                        
        $value  =   implode('', $node['cData']);
        $size   =   $node['attributes']['size'];
        
        $atts   =   array(
                    'wb:dialog' =>  'smiley',
                    'wb:value'  =>  $value,
                    'class'     =>  'smiley' . $size . ' ' . $value,
                    'src'       =>  '[[DOCROOT]]/s/px.gif',
                    'alt'       =>  $value,
                    'width'     =>  $size,
                    'height'    =>  $size
                    );
        $atts   =   array_merge($this->getDefaultAttributes(WBMarkup_Converter::TARGET_WXML), $atts);
                    
        $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)
    {
        $html   =   array(
                        'ns'            =>  null,
                        'tag'           =>  'img',
                        'attributes'    =>  array(
                                                'class'         =>  'smiley16',
                                                'src'           =>  '[[DOCROOT]]/s/px.gif',
                                                'width'         =>  '16',
                                                'height'        =>  '16',
                                                'alt'           =>  'smiley',
                                                'title'         =>  'smiley',
                                                'onmouseover'   =>  'new WB.Tooltip(this).smiley();'
                                                ),
                        'isEmpty'       =>  true,
                        'cData'         =>  array()
                    );
        
        // size
        $size   =   '16';
        if (isset($node['attributes']['size']) && !empty($node['attributes']['size'])) {
            $size   =   $node['attributes']['size'];
            $html['attributes']['width']    =   $size;
            $html['attributes']['height']   =   $size;
        }
        
        // emoticon
        $smiley =   trim(implode(' ', $node['cData']));
        $html['attributes']['alt']      =   $smiley;
        $html['attributes']['title']    =   $smiley;
        
        // class
        $class  =   'smiley';
        if (isset($node['attributes']['class']) && !empty($node['attributes']['class'])) {
            $class  =   $node['attributes']['class'];
        }
        
        $html['attributes']['class']    =   $class . $size . ' ' . $smiley;
        
        $node   =   $html;
        return true;
    }
}