view.html.php

Joomla!是一套获得过多个奖项的内容管理系统(Content Management System, CMS)。Joomla!采用PHP+MySQL数据库开发

<?php
/**
* version $Id: view.html.php 10498 2008-07-04 00:05:36Z ian $
* @package		Joomla
* @subpackage	Newsfeeds
* @copyright	Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
* @license		GNU/GPL, see LICENSE.php
*
* Joomla! 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.
*/

// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die( 'Restricted access' );

jimport( 'joomla.application.component.view');

/**
 * HTML View class for the Newsfeeds component
 *
 * @static
 * @package		Joomla
 * @subpackage	Newsfeeds
 * @since 1.0
 */
class NewsfeedsViewNewsfeed extends JView
{
	function display( $tpl = null)
	{
		global $mainframe;

		// check if cache directory is writeable
		$cacheDir = JPATH_BASE.DS.'cache'.DS;
		if ( !is_writable( $cacheDir ) ) {
			echo JText::_( 'Cache Directory Unwritable' );
			return;
		}

		// Get some objects from the JApplication
		$pathway  =& $mainframe->getPathway();
		$document =& JFactory::getDocument();

		// Get the current menu item
		$menus	= &JSite::getMenu();
		$menu	= $menus->getActive();
		$params	= &$mainframe->getParams();

		//get the newsfeed
		$newsfeed =& $this->get('data');

		//  get RSS parsed object
		$options = array();
		$options['rssUrl']		= $newsfeed->link;
		$options['cache_time']	= $newsfeed->cache_time;

		$rssDoc =& JFactory::getXMLparser('RSS', $options);

		if ( $rssDoc == false ) {
			$msg = JText::_('Error: Feed not retrieved');
			$mainframe->redirect('index.php?option=com_newsfeeds&view=category&id='. $newsfeed->catslug, $msg);
			return;
		}
		$lists = array();

		// channel header and link
		$newsfeed->channel['title'] 	  = $rssDoc->get_title();
		$newsfeed->channel['link'] 		  = $rssDoc->get_link();
		$newsfeed->channel['description'] = $rssDoc->get_description();
		$newsfeed->channel['language'] 	  = $rssDoc->get_language();

		// channel image if exists
		$newsfeed->image['url']    = $rssDoc->get_image_url();
		$newsfeed->image['title']  = $rssDoc->get_image_title();
		$newsfeed->image['link']   = $rssDoc->get_image_link();
		$newsfeed->image['height'] = $rssDoc->get_image_height();
		$newsfeed->image['width']  = $rssDoc->get_image_width();

		// items
		$newsfeed->items = $rssDoc->get_items();

		// feed elements
		$newsfeed->items = array_slice($newsfeed->items, 0, $newsfeed->numarticles);

		// Set page title
		// because the application sets a default page title, we need to get it
		// right from the menu item itself
		if (is_object( $menu )) {
			$menu_params = new JParameter( $menu->params );
			if (!$menu_params->get( 'page_title')) {
				$params->set('page_title',	$newsfeed->name);
			}
		} else {
			$params->set('page_title',	$newsfeed->name);
		}
		$document->setTitle( $params->get( 'page_title' ) );

		//set breadcrumbs
		$viewname	= JRequest::getString('view');
		if ( $viewname == 'categories' ) {
			$pathway->addItem($newsfeed->category, 'index.php?view=category&id='.$newsfeed->catslug);
		}
		$pathway->addItem($newsfeed->name, '');

		$this->assignRef('params'  , $params   );
		$this->assignRef('newsfeed', $newsfeed );

		parent::display($tpl);
	}

	function limitText($text, $wordcount)
	{
		if(!$wordcount) {
			return $text;
		}

		$texts = explode( ' ', $text );
		$count = count( $texts );

		if ( $count > $wordcount )
		{
			$text = '';
			for( $i=0; $i < $wordcount; $i++ ) {
				$text .= ' '. $texts[$i];
			}
			$text .= '...';
		}

		return $text;
	}
}
?>