<?php

/**
 * Dokument-Objekt.<br>
 * Diese Objekt verk�rpert das Root-Objekt in einem DOM-Baum.<br>
 * <br>
 * Dieses Objekt kann Text parsen und seine Unterobjekte selbst erzeugen.<br>
 * 
 * @author Jan Dankert, $Author$
 * @version $Revision$
 * @package openrat.text
 */
class HtmlDomRenderer
{
	var $linkedObjectIds = array();
	
	/**
	 * Fu�noten.
	 *
	 * @var Array
	 */
	var $footnotes       = array();

	var $encodeHtml = false;
	
	var $path       = array();
	
	var $domId      = '';
	
	
	/**
	 * Rendert ein Dokument-Element.
	 *
	 * @param Object $child Element
	 * @return String
	 */
	function renderElement( $child )
	{
		global $conf;
		
		$this->path[] = $child;
		
		$val  = '';
//		$val  = '<br/>';
//		foreach( $this->path as $p )
//			$val .= '&nbsp;&nbsp;&nbsp;&nbsp;';

//		$val .= '<a href="#'.$this->getPathAsString().'">_</a>';
			
				$attr = array();
				$praefix = '';
				$suffix  = '';
				$empty   = false;

				if	( count($child->children) > 0 )
				{
					$subChild1 = $child->children[0];
					
					if	( !empty($subChild1->class) )
						$attr['class'] = $subChild1->class;
					
					if	( !empty($subChild1->style) )
						$attr['style'] = $subChild1->style;
					
					if	( !empty($subChild1->title) )
						$attr['title'] = $subChild1->title;
				}

				$praefix .= lang('TEXT_MARKUP_'.strtoupper(substr(get_class($child),0,-7)));
				
				switch( strtolower(get_class($child)) )
				{
					case 'rawelement':
						$tag = '';
						$val = $child->src;
						
						break;

					case 'textelement':
						$tag = 'text';

						$val .= $child->text;
						
						break;


					case 'linkelement':
						
						$tag = 'a';
						if	( !empty($child->name) )
							$attr['name'] = $child->name;
						else
							$attr['href'] = htmlspecialchars($child->getUrl());

						if	( Object::available( $child->objectId ) )
						{
							$file = new File( $child->objectId );
							$file->load();
							$attr['title'] = $file->description;
							unset( $file );
						}

						break;

					case 'imageelement':
						$empty       = true;
						$attr['alt'] = '';
						
						if	( ! Object::available( $child->objectId ) )
						{
							$tag = '';
						}
						elseif	( empty($attr['title']) )
						{
							$tag = 'img';
							$attr['src']    = $child->getUrl();
							$attr['border'] = '0';
							
							// Breite/H�he des Bildes bestimmen.
							$image = new File( $child->objectId );
							
							$image->load();
							$attr['alt'   ]    = $image->name;
							$attr['title' ]    = $image->description;
							
							$image->getImageSize();
							$attr['width' ]    = $image->width;
							$attr['height']    = $image->height;
							unset($image);
						}
						else
						{
							$tag = 'dl';
							
							if	( empty($attr['class']) )
								$attr['class'] = "image";
								
							$child->children = array();
							$dt = new DefinitionListItemElement();
							$dt->children[] = new TextElement('(image)');
							$dt->children[] = $child;
							$child->children[] = $dt;

							$dd = new DefinitionListEntryElement();
							$dd->children[] = new TextElement('(image)');
							$dd->children[] = new TextElement($attr['title']);
							$child->children[] = $dd;
						}
						$suffix = '<img src="./themes/default/images/editor/image.png">';
						break;

					case 'strongelement':
						$tag = 'strong';
						break;

					case 'macroelement':
						$tag = 'macro';
						$val = ucfirst($child->name);
						break;

						
					case 'emphaticelement':
						$tag = 'em';
						break;

					case 'insertedelement':
						$tag = 'ins';
						break;

					case 'removedelement':
						$tag = 'del';
						break;

					case 'headlineelement':
						$tag = 'h'.$child->level;
						
						$l = new LinkElement();
						$l->name = $child->getName();
						$child->children[] = $l;
						
						break;

					case 'tableelement':
						$tag = 'table';
						break;

					case 'tablelineelement':
						$tag = 'tr';
						break;

					case 'definitionlistelement':
						$items = $child->children;
						$newChildren = array();
						foreach( $items as $item )
						{
							$def = new DefinitionItemElement();
							$def->key = $item->key;
							$item->key = ''; 
							$newChildren[] = $def;
							$newChildren[] = $item;
						}
//						Html::debug($newChildren,'Children-neu');
						$child->children = $newChildren;
						$tag = 'dl';
						break;

					case 'definitionitemelement':
						if	( !empty($child->key) )
						{
							$tag = 'dt';
							$val = $child->key;
						}
						else
						{
							$tag = 'dd';
						}
						break;

					case 'tablecellelement':
						if	( $child->isHeading )
							$tag = 'th'; else $tag = 'td';
							
						if	( $child->rowSpan > 1 )
							$attr['rowspan'] = $child->rowSpan;
						if	( $child->colSpan > 1 )
							$attr['colspan'] = $child->colSpan;
						break;

					case 'listelement':
						$tag = 'ul';
						break;
						
					case 'teletypeelement':
						$tag = 'code';
						break;
						
					case 'numberedlistelement':
						$tag = 'ol';
						break;
						
					case 'listentryelement':
						$tag = 'li';
						break;

					default:
						
				}				

				$val = $this->renderValue($val);
				$val = $praefix.$val.$suffix;
				
				if	( count($child->children)>0 )
				{
					$val .= '<ul>';
					foreach( $child->children as $c )
					{
						$val .= $this->renderElement( $c );
					}
					$val .= '</ul>';
				}

//				echo "text:$val";

				unset( $this->path[ count($this->path)-1 ] );
				return '<li>'.$val.'</li>';
	}



	/**
	 * Rendert einen Inhalt.
	 *
	 * @param String $value Inhalt
	 * @return String
	 */
	function renderValue( $value )
	{
		$val = '&nbsp;<em>'.$value.'</em>';
		return $val;
	}

	
	
	/**
	 * Rendering des Dokumentes.<br>
	 *
	 * @return String
	 */
	function render()
	{
		$this->renderedText = '';
		$this->footnotes    = array();
		
		foreach( $this->children as $child )
			$this->renderedText .= '<ul>'.$this->renderElement( $child ).'</ul>';

		foreach( $this->footnotes as $child )
			$this->renderedText .= '<ul>'.$this->renderElement( $child ).'</ul>';
			
		return $this->renderedText;
	}
	
	
	/**
	 *
	 */
	function getPathAsString()
	{
		$path = array();
		foreach( $this->path as $p )
		{
			$path[] = strtolower( substr(get_class($p),0,-7) );
		}
		
		return implode('_',$path);
	}
}

?>