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

WBClass::load('WBMarkup_Converter');

/**
 * Tag converter
 *
 * Table of content
 *
 * @version 0.1.0
 * @package wb
 * @subpackage Markup
 */
class WBMarkup_Converter_Wb_Toc extends WBMarkup_Converter
{
    /**
     * handler
     * @var WBMarkup_Handler_Xml2Html
     */
    private $handler;

    /**
     * constructor
     *
     * start dictionary
     */
    public function __construct()
    {
    }

    public function preset($handler, &$content)
    {
        parent::preset($handler, $content);
        $this->handler  =   $handler;
    }

   /**
    * 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)
    {
        $cData  =   trim(strip_tags(implode('', $node['cData'])));
        $xml    =   array(
                            'ns'            =>  'wb',
                            'tag'           =>  'toc',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  $node['isEmpty'],
                            'cData'         =>  array($cData)
                        );

        $atts   =   array(
                    'stopat'    =>  $node['attributes']['stopat'],
                    'tags'      =>  $node['attributes']['tags'],
                    'template'  =>  $node['attributes']['template'],
                    'class'     =>  $node['attributes']['wb:value']
                    );

        $xml['attributes']  =   $atts;
        $node               =   $xml;

        return true;
    }

   /**
    * transform Xml to Xinha (html) tags
    *
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toXinha(&$node)
    {
        $xinha  =   array(
                            'ns'            =>  '',
                            'tag'           =>  'div',
                            'attributes'    =>  array(),
                            'isEmpty'       =>  $node['isEmpty'],
                            'cData'         =>  $node['cData']
                        );

        $atts   =   array(
                    'wb:dialog' =>  'toc',
                    'wb:value'  =>  $node['attributes']['class'],
                    'class'     =>  'wbxinha toc',
                    'title'     =>  'Double click to edit',
                    'template'  =>  $node['attributes']['template'],
                    'stopat'    =>  $node['attributes']['stopat'],
                    'tags'      =>  $node['attributes']['tags']
                    );

        $xinha['attributes']    =   $atts;
        $node   =   $xinha;
        return true;
    }

   /**
    * transform XML to Html
    *
    * @param array $node to be modified document node
    * @return bool true on success
    */
    public function toHtml(&$node)
    {
        $listener   =   WBClass::create('WBMarkup_Listener_Toc');

        $config             =   $node['attributes'];
        $config['tags']     =   explode(',', $config['tags']);
        $config['cData']    =   $node['cData'];
        $config['needle']   =   '<!-- wb:toc:' . $listener->getObjectId() . ':toc:wb -->';

        $listener->configure($config);

        // html attributes
        $node['ns']         =   '';
        $node['tag']        =   '';
        $node['attributes'] =   array();
        $node['cData']      =   array($config['needle']);
        $this->handler->addListener($listener);
        return true;
    }
}
?>