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<?php
/**
* @package Joomla.Site
* @subpackage com_tags
*
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
use Joomla\Registry\Registry;
/**
* HTML View class for the Tags component
*
* @since 3.1
*/
class TagsViewTag extends JViewLegacy
{
protected $state;
protected $items;
protected $item;
protected $children;
protected $pagination;
protected $params;
protected $tags_title;
/**
* Execute and display a template script.
*
* @param string $tpl The name of the template file to parse; automatically searches through the template paths.
*
* @return mixed A string if successful, otherwise a Error object.
*
* @since 3.1
*/
public function display($tpl = null)
{
$app = JFactory::getApplication();
$params = $app->getParams();
// Get some data from the models
$state = $this->get('State');
$items = $this->get('Items');
$item = $this->get('Item');
$children = $this->get('Children');
$parent = $this->get('Parent');
$pagination = $this->get('Pagination');
/*
* // Change to catch
* if (count($errors = $this->get('Errors'))) {
* JError::raiseError(500, implode("\n", $errors));
* return false;
*/
// Check whether access level allows access.
// @TODO: Should already be computed in $item->params->get('access-view')
$user = JFactory::getUser();
$groups = $user->getAuthorisedViewLevels();
foreach ($item as $itemElement)
{
if (!in_array($itemElement->access, $groups))
{
unset($itemElement);
}
// Prepare the data.
if (!empty($itemElement))
{
$temp = new Registry;
$temp->loadString($itemElement->params);
$itemElement->params = clone $params;
$itemElement->params->merge($temp);
$itemElement->params = (array) json_decode($itemElement->params);
}
}
if ($items !== false)
{
foreach ($items as $itemElement)
{
$itemElement->event = new stdClass;
// For some plugins.
!empty($itemElement->core_body)? $itemElement->text = $itemElement->core_body : $itemElement->text = null;
$dispatcher = JEventDispatcher::getInstance();
JPluginHelper::importPlugin('content');
$dispatcher->trigger('onContentPrepare', array ('com_tags.tag', &$itemElement, &$itemElement->core_params, 0));
$results = $dispatcher->trigger('onContentAfterTitle', array('com_tags.tag', &$itemElement, &$itemElement->core_params, 0));
$itemElement->event->afterDisplayTitle = trim(implode("\n", $results));
$results = $dispatcher->trigger('onContentBeforeDisplay', array('com_tags.tag', &$itemElement, &$itemElement->core_params, 0));
$itemElement->event->beforeDisplayContent = trim(implode("\n", $results));
$results = $dispatcher->trigger('onContentAfterDisplay', array('com_tags.tag', &$itemElement, &$itemElement->core_params, 0));
$itemElement->event->afterDisplayContent = trim(implode("\n", $results));
// Write the results back into the body
if (!empty($itemElement->core_body))
{
$itemElement->core_body = $itemElement->text;
}
}
}
$this->state = $state;
$this->items = $items;
$this->children = $children;
$this->parent = $parent;
$this->pagination = $pagination;
$this->user = $user;
$this->item = $item;
// Escape strings for HTML output
$this->pageclass_sfx = htmlspecialchars($params->get('pageclass_sfx'));
// Merge tag params. If this is single-tag view, menu params override tag params
// Otherwise, article params override menu item params
$this->params = $this->state->get('params');
$active = $app->getMenu()->getActive();
$temp = clone $this->params;
// Check to see which parameters should take priority
if ($active)
{
$currentLink = $active->link;
// If the current view is the active item and an tag view for one tag, then the menu item params take priority
if (strpos($currentLink, 'view=tag') && (strpos($currentLink, '&id[0]=' . (string) $item[0]->id)))
{
// $item->params are the article params, $temp are the menu item params
// Merge so that the menu item params take priority
$this->params->merge($temp);
// Load layout from active query (in case it is an alternative menu item)
if (isset($active->query['layout']))
{
$this->setLayout($active->query['layout']);
}
}
else
{
// Current view is not tags, so the global params take priority since tags is not an item.
// Merge the menu item params with the global params so that the article params take priority
$temp->merge($this->state->params);
$this->params = $temp;
// Check for alternative layouts (since we are not in a single-article menu item)
// Single-article menu item layout takes priority over alt layout for an article
if ($layout = $this->params->get('tags_layout'))
{
$this->setLayout($layout);
}
}
}
else
{
// Merge so that item params take priority
$temp->merge($item[0]->params);
$item[0]->params = $temp;
// Check for alternative layouts (since we are not in a single-tag menu item)
// Single-tag menu item layout takes priority over alt layout for an article
if ($layout = $item[0]->params->get('tag_layout'))
{
$this->setLayout($layout);
}
}
// Increment the hit counter
$model = $this->getModel();
$model->hit();
$this->_prepareDocument();
parent::display($tpl);
}
/**
* Prepares the document.
*
* @return void
*/
protected function _prepareDocument()
{
$app = JFactory::getApplication();
$menus = $app->getMenu();
$title = null;
// Generate the tags title to use for page title, page heading and show tags title option
$this->tags_title = $this->getTagsTitle();
// Because the application sets a default page title,
// we need to get it from the menu item itself
$menu = $menus->getActive();
if ($menu)
{
$this->params->def('page_heading', $this->params->get('page_title', $menu->title));
$title = $this->params->get('page_title', $menu->title);
if ($menu->query['option'] != 'com_tags')
{
$this->params->set('page_subheading', $menu->title);
}
}
else
{
$this->params->def('page_heading', $this->tags_title);
$title = $this->tags_title;
}
if (empty($title))
{
$title = $app->get('sitename');
}
elseif ($app->get('sitename_pagetitles', 0) == 1)
{
$title = JText::sprintf('JPAGETITLE', $app->get('sitename'), $title);
}
elseif ($app->get('sitename_pagetitles', 0) == 2)
{
$title = JText::sprintf('JPAGETITLE', $title, $app->get('sitename'));
}
$this->document->setTitle($title);
foreach ($this->item as $itemElement)
{
if ($itemElement->metadesc)
{
$this->document->setDescription($itemElement->metadesc);
}
elseif ($this->params->get('menu-meta_description'))
{
$this->document->setDescription($this->params->get('menu-meta_description'));
}
if ($itemElement->metakey)
{
$this->document->setMetadata('keywords', $itemElement->metakey);
}
elseif ($this->params->get('menu-meta_keywords'))
{
$this->document->setMetadata('keywords', $this->params->get('menu-meta_keywords'));
}
if ($this->params->get('robots'))
{
$this->document->setMetadata('robots', $this->params->get('robots'));
}
if ($app->get('MetaAuthor') == '1')
{
$this->document->setMetaData('author', $itemElement->created_user_id);
}
}
// @TODO: create tag feed document
// Add alternative feed link
if ($this->params->get('show_feed_link', 1) == 1)
{
$link = '&format=feed&limitstart=';
$attribs = array('type' => 'application/rss+xml', 'title' => 'RSS 2.0');
$this->document->addHeadLink(JRoute::_($link . '&type=rss'), 'alternate', 'rel', $attribs);
$attribs = array('type' => 'application/atom+xml', 'title' => 'Atom 1.0');
$this->document->addHeadLink(JRoute::_($link . '&type=atom'), 'alternate', 'rel', $attribs);
}
}
/**
* Creates the tags title for the output
*
* @return bool
*/
protected function getTagsTitle()
{
$tags_title = array();
if (!empty($this->item))
{
$user = JFactory::getUser();
$groups = $user->getAuthorisedViewLevels();
foreach ($this->item as $item)
{
if (in_array($item->access, $groups))
{
$tags_title[] = $item->title;
}
}
}
return implode(' ', $tags_title);
}
}