<?php
/**
 * @package		SectionEx
 * @copyright	Copyright (C) 2008 Robert Kuster. All rights reserved.
 * @license		GNU/GPL, see LICENSE.php
 * @link        http://www.stackideas.com  
 *
 * SectionEx is free software. This version may have been modified pursuant
 * to the GNU General Public License, and as distributed it includes or
 * is derivative of works licensed under the GNU General Public License or
 * other free or open source software licenses.
 * See COPYRIGHT.php for copyright notices and details.
 */ 
 
defined('_JEXEC') or die('Restricted access'); 
jimport( 'joomla.application.component.view');

// Component Helper
require_once(JPATH_COMPONENT_SITE.DS.'helpers'.DS.'misc.php');
require_once(JPATH_COMPONENT_SITE.DS.'helpers'.DS.'route.php');
require_once(JPATH_COMPONENT_SITE.DS.'classes'.DS.'theme.php');


/**
 * HTML View class for the HelloWorld Component
 *
 * @package		Joomla.Tutorials
 * @subpackage	Components
 */
class SectionExViewCategory extends JView
{
    function display($tpl = null)
	{

		//initialise section themes
		$theme		= new seThemes();
		$mainframe	=& JFactory::getApplication();
		$document 	=& JFactory::getDocument();
		
		if ($this->get( 'IdSection') == 0)
		{	// No section was selected for our menu item.. Show an error message and return.
			echo "<b>".JText::_("ALERT_SECTION_NOT_SELECTED")."</b>";
			return;
		}
		
		// Get page/component configuration
		$params = &$mainframe->getParams();
		$uri 	=& JFactory::getURI();
		
		//set the params to have proper value incase it is using global.
		RkHelper::syncParams($params);
		
		// Get some data from the model
		//$model 			=& $this->getModel();
		$sectionList	= & $this->get( 'SectionList');
		$section		= & $this->get( 'Section');
		$categories		= & $this->get( 'Categories');
		$articles		= & $this->get( 'Articles');
		
		// ARTICLES -> create URL for each article
		// CATEGORIES -> get start index into articles verctor && active articles per category
		$this->_init_Additional_Category_And_Article_Data( $categories, $articles );		
		
		// -> "pagination" (actually we don't implement real pagination for now. 
		// we just display a simple listbox to limit the number of articles that is output)
		$limit = 0;
		$defLimit = $params->get('se_pagination');
		$pagination	= '';
		if ($defLimit != -1) 
		{	// -> pagination is enabled?
			jimport('joomla.html.pagination');
			$keyPrefix = RkHelper::getPrefixFoxStateVariables(0);
			$limit		= $mainframe->getUserStateFromRequest($keyPrefix .'limit', 'limit', $params->def('display_num', $defLimit), 'int');
			$limitstart	= 0; // JRequest::getVar('limitstart', 0, '', 'int');
			$pagination = new JPagination(500, $limitstart, $limit);
		}
		
		// -> create select lists
		$lists	= $this->_buildSortLists();		
		
		// add path to load the theme files, to support template override issue
		$themepath = '';

		jimport( 'joomla.filesystem.folder' );
	    
		// check for themes & template override
	    $user_theme = $theme->getThemes();
	    
		// get current joomla template
    	$template = $mainframe->getTemplate();

		// we have override folder in current joomla template
		if ( JFolder::exists( JPATH_ROOT . DS . 'templates' . DS . $template . DS . 'html' . DS . 'com_sectionex' ) ) {
			if ( $params->get('se_theme_override') ) {
				$themepath = rtrim(JURI::root(), '/') . '/templates/' . $template . '/html/com_sectionex';
			}
			else {
				$themepath = rtrim(JURI::root(), '/') . '/components/com_sectionex/themes/' . $user_theme;
			}
		}
		elseif ( JFolder::exists( JPATH_ROOT . DS . 'components' . DS . 'com_sectionex' . DS . 'themes' . DS . $user_theme ) ) {
			$themepath = rtrim(JURI::root(), '/') . '/components/com_sectionex/themes/' . $user_theme;
		}
		else {	    
	    	$themepath = rtrim(JURI::root(), '/') . '/components/com_sectionex/themes/default';
	    }
		
		
		// -> asign refs so we can use the 'variables' in our tmpl files
		$this->assignRef('sectionList'	, $sectionList);
		$this->assignRef('section'		, $section);
		$this->assignRef('categories'	, $categories);
		$this->assignRef('articles'		, $articles);
		$this->assignRef('params'		, $params);
		$this->assignRef('pagination'	, $pagination);
		
		$this->assign('themepath'		, $themepath);
		$this->assign('numitemlimit'	, $limit);
		$this->assign('action'			, $uri->toString());
		$this->assign('lists'			, $lists);	
		
		jimport('joomla.filesystem.file');
		
		// load common sejax files
		$document->addScript( rtrim(JURI::root(),'/') . '/components/com_sectionex/assets/js/jquery-1.4.1.min.js' ); 	
		$document->addScript( rtrim(JURI::root(),'/') . '/components/com_sectionex/assets/js/sejax.js' );
		
		
		if($params->get('se_filters') == 1)
		{	
			// now we check if author filter is enabled or not.
			if ( (($params->get('se_show_author') == 1) || ($params->get('se_show_author') == 2)) &&  ($params->get('se_use_autocomplete') == 1))
			{
				$document->addScript( rtrim(JURI::root(),'/') . '/components/com_sectionex/assets/js/jquery.autocomplete.js' );
				$autoCLink  = JURI::root().('index.php?option=com_sectionex&controller=ajax&task=getAuthor&no_html=1&tmpl=component');				
				$js =<<<SHOW
					var author;
					jQuery().ready(function(){
					    var options = {
					    	serviceUrl: '$autoCLink',
						    minChars:2, 
						    delimiter: /(,|;)\s*/, // regex or character
						    maxHeight:250,
						    width:200,
						    zIndex: 9999,
						    deferRequestBy: 0, //miliseconds
						    //params: { country:'Yes' }, //aditional parameters
						    // callback function:
						    onSelect: function(value, data){
								sej('#sein_auth').val(value);
							}					
					    };
					    author = sej('#sein_auth').autocomplete(options);
					});
SHOW;
					$document->addScriptDeclaration($js);
			}			
		}				 
		
		$document->addStylesheet( rtrim(JURI::root(),'/') . '/components/com_sectionex/assets/css/common.css');	

		// load theme css from template override folder
		if ( JFile::exists( JPATH_ROOT . DS . 'templates' . DS . $template . DS . 'html' . DS . 'com_sectionex' . DS . 'css' . DS . 'style.css' ) )
		{
			if ( $params->get('se_theme_override') ) {
				$document->addStylesheet( rtrim(JURI::root(),'/') . '/templates/'.$template.'/html/com_sectionex/css/style.css');		
			}
			else {
				$document->addStylesheet( rtrim(JURI::root(),'/') . '/components/com_sectionex/themes/' . $theme->getThemes() . '/css/style.css');	
			}
		}
		// load theme css
		elseif ( JFile::exists( JPATH_ROOT . DS . 'components' . DS . 'com_sectionex' . DS . 'themes' . DS . $theme->getThemes() . DS . 'css' . DS . 'style.css' ) )
		{
			$document->addStylesheet( rtrim(JURI::root(),'/') . '/components/com_sectionex/themes/' . $theme->getThemes() . '/css/style.css');		
		}
		
		
		if ( (($params->get('se_show_intro_text') == 2) || ($params->get('se_show_intro_text') == 3)) &&
			  ($params->get('se_images_in_intro_text') == 0))
		{	// -> this CSS style merely hides images inside article descriptions		
			$document->addStylesheet(rtrim(JURI::root(),'/') . '/components/com_sectionex/themes/' . $theme->getThemes() . '/css/style_hide_intro_imgs.css');
		}		

		parent::display($tpl);
		// Stackideas
		echo '<div style="text-align: center; padding: 20px 0;"><a href="http://stackideas.com">Powered by SectionEx for Joomla!</a></div>';
	}
	
	// ARTICLES -> create URL for each article
	// CATEGORIES -> get start index into articles verctor and active articles per category
	function _init_Additional_Category_And_Article_Data(&$categories, &$articles)
	{
		// for CATEGORIES:
		// a) retrieve start index into the article array for each category
		//    (note that articles have been "ordered" by categories in our SQL statement, thus 
		//    all articles of one categroy are "bundled" together one after the other)
		// b) calculate the number of active articles( #actually displayed articles -> this will be a number 
		//    between "0 < activeItems < numitems", depending on the filtering criteriums)
		 
		// values needed for generating URLs
		$isSefEnabled = $this->_isSef();
		$newItemId = "Itemid=" . RkHelper::getIdOfActiveMenu();	
			
		// LOOP over all categories
		// -> store Idx into "$categories" vector for every catid
		for ($i=0; $i < sizeof($categories); $i++)
		{	
			$category = & $categories[$i];
			$category->item_startIdx = -1;
			$category->numitems_active = 0;
			
			$categoryIdx[$category->id] = $i;
		}
		
		// LOOP over all articles
		for ($i=0; $i < sizeof($articles); $i++)
		{	
			$article = & $articles[$i]; 		
			
			// skip uncategorized articles for now
			if ($article->catid == 0)
				continue;
			
			// -> get item_startIdx && refresh numitems_active
			$catIdx = $categoryIdx[$article->catid];			
			$category = & $categories[$catIdx];
			
			if ($category->item_startIdx == -1)
				$category->item_startIdx = $i;
			$category->numitems_active += 1;
			
			// -> get article's URL
			$article->link = $this->_getArticleURL($article, $isSefEnabled, $newItemId);
		}
	}
	
	function _getArticleURL(&$article, &$isSefEnabled, &$newItemId)
	{
		global $mainframe;
		$params = &$mainframe->getParams();
		$link = '';
		
		// -> Fron Page like links?
		if ($params->get('se_menu_behavior') == 1)
		{
			// -> create a link with the functionality provided by Joomla! core
			$link = JRoute::_(ContentHelperRouteX::getArticleRoute($article->slug, $article->catslug, $article->sectionid));
			return $link;
		}
		
		// -> SectionEx like links?
		if ($isSefEnabled == true)
		{	// -> SEO urls enabled			
			// manually create a link that links to our component;
			// sectionexBuildRoute is called implicitly (by JRoute)
			$link	= JRoute::_('index.php?view=article&catid='.$article->catslug.'&id='.$article->slug);
			return $link;
		}
		else 
		{	// -> RAW urls enabled
			$link = JRoute::_(ContentHelperRouteX::getArticleRoute($article->slug, $article->catslug, $article->sectionid));
			// Is there an Itemid somewhere in the link?
			if (preg_match("/Item[Ii]d=[0-9]+/", $link, $oldItemId)) 
			{
				// -> replace the existing Itemid with Itdemid="OurMenu". 
				// This way our menu stays highlihte even though we are displaying content from another component.
				$link = str_replace( $oldItemId[0], $newItemId, $link );
				return $link;
			}
			else	
			{	// If there is no Itemid (no other menu which links to the displayed article) append it.
				$link = $link . "&" .$newItemId;
				return $link;
			}
		}	// else -> RAW links
		
		// Oops. Should never get here..
		return $link;
	}
	
	
	function _isSef()
	{
		$mainframe	=& JFactory::getApplication();
		$sef		= $mainframe->getCfg('sef');
		
		if ($sef == JROUTER_MODE_SEF)
			return true;
		
		return false;
	}
	
	function _buildSortLists()
	{
		global $mainframe;
		$params = &$mainframe->getParams();
		
		// Table ordering values -> Get filter data from Reuqest or session
		$keyPrefix 			= RkHelper::getPrefixFoxStateVariables($params->get('se_sort_propagate'));
		
		$filter_order 		= $mainframe->getUserStateFromRequest($keyPrefix . 'filter_order', 'filter_order', '');
		$filter_order_Dir 	= $mainframe->getUserStateFromRequest($keyPrefix . 'filter_order_Dir', 'filter_order_Dir', '');
		$filter_title 		= JRequest::getString('filter_title', '', 'request');
		$filter_author		= JRequest::getString('filter_author', '', 'request');
		$filter_content		= JRequest::getString('filter_content', '', 'request');
				
		$lists['order']     = $filter_order;
		$lists['order_Dir'] = $filter_order_Dir;
		$lists['title'] 	= $filter_title;
		$lists['author'] 	= $filter_author;
		$lists['content'] 	= $filter_content;
		
		return $lists;
	}
	
	function _getHtmlTocEntry($c)
	{
		$row = &$this->categories[$c];
		$juri = JURI::getInstance();
		
		$str_numitems_active = $this->_is_a_FilterActive() ? ($row->numitems_active . "/") : null;		
		
		if ($this->_is_a_FilterActive() && ($row->numitems_active == 0))
		{
			$strRet = "";		
			//$strRet .= "<li><span class=\"small\">";
			$strRet .= $row->title;
			if ($this->params->get('se_toc_show_numitems') == 1)
			{
				$strRet .= " &nbsp; ( ". $str_numitems_active . $row->numitems ." ". JText::_('ITEMS') ." )"; 
			}
			//$strRet .= "</span></li>";
		}
		else
		{
			$strRet = "";		
			$strRet .= "<a href='" . $juri->toString() . "#catid" . $row->id . "'>";
			$strRet .= $row->title;
			if ($this->params->get('se_toc_show_numitems') == 1)
			{
				$strRet .= "</a> &nbsp; <span class=\"small\">( ". $str_numitems_active . $row->numitems ." ". JText::_('ITEMS') ." )</span>"; 
			}
			else
			{
				$strRet .= "</a>";
			}
		}
		return $strRet;
	}
	
	function _is_a_FilterActive()
	{	
		global $mainframe;
		$params = &$mainframe->getParams();
		if ($params->get('se_filters'))
		{		
			$filter_title = JRequest::getString('filter_title', '', 'request');
			if ($filter_title)
			{
				return true;
			}
			$filter_author = JRequest::getString('filter_author', '', 'request');
			if ($filter_author)
			{
				return true;
			}
			$filter_content = JRequest::getString('filter_content', '', 'request');
			if ($filter_content)
			{
				return true;
			}
		}
		return false;		
	}
	
	function _writeInlineStyle($style)
	{
		if ($this->params->get('use_inline_css') == 1)
		{		
			echo "style='" . $style . "'";
		}
	}
	
	function _formatAndConvertIntroText(&$introtext)
	{
		if (($this->params->get('se_show_intro_text_short')==1) || 
			($this->params->get('se_show_intro_text_short')==2))
		{	// show only a short variant of our intro-text (if it is defined in a special hidden <span> tag)
		
			// Look for a string which is defined with the following span (only exact machtes):
			//  <span style="display: none" class="ShortDescription">.....</span>
			$regex_pattern = "/<span style=\"display: none\" class=\"ShortDescription\">(.*)<\/span>/";
			if (preg_match($regex_pattern, $introtext, $matches))
			{
				$introtext = $matches[1];
				return;
			}

			if ($this->params->get('se_show_intro_text_short')==2)
			{	// se_show_intro_text_short == 2 == SHORT_ONLY
				// We wanted only short introduction textes. If they are not specified then nothing is displayed.
				$introtext = "";
				return;
			}
		}
		
		// If we got here then we didn't change the introduction text in any way. The full introduction text will be displayed 
		// (this is the same text as displayed on the front-page). This applies for one of the following scenarios:
		// a) se_show_intro_text_short == 0 (NO)
		// b) se_show_intro_text_short == 1 (SHORT_IF_IT_EXISTS), but no short-intro was defined for our article
	}
}
?>