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/home/develito/public_html/plugins/system/sunfw/includes/site.php

<?php
/**
 * @version    $Id$
 * @package    SUN Framework
 * @author     JoomlaShine Team <support@joomlashine.com>
 * @copyright  Copyright (C) 2012 JoomlaShine.com. All Rights Reserved.
 * @license    GNU/GPL v2 or later http://www.gnu.org/licenses/gpl-2.0.html
 *
 * Websites: http://www.joomlashine.com
 * Technical Support:  Feedback - http://www.joomlashine.com/contact-us/get-support.html
 */

// No direct access to this file.
defined('_JEXEC') or die('Restricted access');

// Import necessary library.
jimport('joomla.filesystem.file');

/**
 * Template rendering class.
 *
 * @package  SUN Framework
 * @since    1.0.0
 */
class SunFwSite
{

/**
	 * A singleton instance of the class.
	 *
	 * @var  SunFwSite
	 */
	private static $instance;

/**
	 * Joomla's application instance.
	 *
	 * @var  JApplicationSite
	 */
	protected $app;

/**
	 * Joomla's document object.
	 *
	 * @var  JDocumentHTML
	 */
	protected $doc;

/**
	 * Template details.
	 *
	 * @var  object
	 */
	protected $tpl;

/**
	 * Template name.
	 *
	 * @var  string
	 */
	protected $template;

/**
	 * Page type, either 'index', 'component' or 'error'.
	 *
	 * @var  string
	 */
	protected $page;

/**
	 * Current style.
	 *
	 * @var  object
	 */
	protected $style;

/**
	 * Layout builder data.
	 *
	 * @var  array
	 */
	protected $layout = array();

/**
	 * Styles data.
	 *
	 * @var  array
	 */
	public $appearance = array();

/**
	 * Mega menu data.
	 *
	 * @var  array
	 */
	protected $megamenu = array();

/**
	 * Flag that states whether layout viewer is enabled.
	 *
	 * @var  boolean
	 */
	protected $layoutViewer = false;

/**
	 * Constructor method.
	 *
	 * @return  void
	 */
	public function __construct()
	{
		// Check system requirements first.
		$resultCheckSystemRequirements = SunFwUtils::checkSystemRequirements();

if (count((array) $resultCheckSystemRequirements))
		{
			die(implode('<br />', $resultCheckSystemRequirements));
		}

// Initialize class overrides.
		SunFwOverwrite::initialize();

// Get Joomla's application instance.
		$this->app = JFactory::getApplication();

// Get Joomla's document object.
		$this->doc = JFactory::getDocument();

// Get active template.
		$this->tpl = PlgSystemSunFw::$template ?: $this->app->getTemplate(true);
		$this->template = $this->tpl->template;

if (!isset($this->tpl->id))
		{
			$tmpTemplate = SunFwHelper::getTemplateStyleByName($this->template);
			$this->tpl->id = $tmpTemplate->id;
		}

// Get current style.
		$this->style = SunFwHelper::getSunFwStyle($this->tpl->id);

// Get layout data.
		$this->layout = SunFwHelper::getLayoutData($this->style, $this->template);

// Get appearance data.
		$this->appearance = SunFwHelper::getStyleData($this->style, $this->template);

// Parse other template style data.
		foreach ((array) $this->style as $key => $value)
		{
			if (substr($key, -5) != '_data')
			{
				continue;
			}

if (!in_array($key, array(
				'layout_builder_data',
				'appearance_data'
			)))
			{
				$this->{$key} = json_decode($value, true);
			}
		}

// Get mega menu data.
		if (isset($this->mega_menu_data))
		{
			$this->megamenu = & $this->mega_menu_data;
		}

// Register necessary event handlers.
		$this->app->registerEvent('onBeforeRender', array(
			'SunFwCookielaw',
			'loadCookie'
		));

$this->app->registerEvent('onBeforeCompileHead', array(
			&$this,
			'optimizeAssets'
		));

$this->app->registerEvent('onAfterRender', array(
			&$this,
			'finalizeOutput'
		));

$this->app->registerEvent('onContentBeforeDisplay', array(
			&$this,
			'renderSocialShare'
		));
		$this->app->registerEvent('onContentAfterDisplay', array(
			&$this,
			'renderSocialShare'
		));

$this->app->registerEvent('onContentBeforeDisplay', array(
			&$this,
			'renderCommenting'
		));
		$this->app->registerEvent('onContentAfterDisplay', array(
			&$this,
			'renderCommenting'
		));
	}

/**
	 * Method to provide access to JDocument instance's variables the way standard Joomla template does.
	 *
	 * @param   string $name Variable name to get value for.$this
	 *
	 * @return  mixed
	 */
	public function __get($name)
	{
		if (isset($this->{$name}))
		{
			return $this->{$name};
		}
		elseif (isset($this->doc->{$name}))
		{
			return $this->doc->{$name};
		}
		elseif (isset($this->app->{$name}))
		{
			return $this->app->{$name};
		}

return null;
	}

/**
	 * Instantiate a singleton of the class then return.
	 *
	 * @return  SunFwSite
	 */
	public static function &getInstance()
	{
		// Instantiate a singleton of the class if not already exists.
		if (!isset(self::$instance))
		{
			self::$instance = new self();
		}

return self::$instance;
	}

/**
	 * Render HTML for the template.
	 *
	 * @param   string     $page  Page type to render, either 'index', 'component' or 'error'.
	 * @param   JDocument  $doc   The current Joomla document object that handles rendering output.
	 *
	 * @return  void
	 */
	public function render($page = 'index', $doc = null)
	{
		// If Joomla document object, use it.
		if ($doc)
		{
			$this->doc = $doc;
		}

// Set page template.
		$this->page = $page;

// Load template assets.
		$this->loadAssets();

// Prepare template parameters.
		SunFwSiteHelper::prepare($this);

// Check if responsive is enabled?
		$this->responsive = !empty($this->layout['settings']['enable_responsive']) ? intval($this->layout['settings']['enable_responsive']) : false;

if (!is_null($this->isMobileSwicher))
		{
			$this->responsive = $this->isMobileSwicher;
		}

// Render template layout.
		$this->renderLayout();
	}

/**
	 * Load template assets.
	 *
	 * @return  void
	 */
	public function loadAssets()
	{
		// Get Style ID.
		$styleID = isset($this->style->style_id) ? md5($this->style->style_id) : '';
		$bootstrapVersion = SunFwSiteBootstrap::getVersion();
		// Get active niche style.
		$niche = SunFwHelper::getActiveNicheStyle();

// Output as HTML5.
		if (method_exists($this->doc, 'setHtml5'))
		{
			$this->doc->setHtml5(true);
		}

// Load Bootstrap.
		$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/bootstrap.css");
		if ($bootstrapVersion === '4') {
			$this->doc->addStylesheet($this->baseurl . "/plugins/system/sunfw/assets/3rd-party/bootstrap/flexbs4_custom.css");
		} else {
			$this->doc->addStylesheet($this->baseurl . "/plugins/system/sunfw/assets/3rd-party/bootstrap/flexbt4_custom.css");
		}

// Load Font Awesome.
		$this->doc->addStylesheet($this->baseurl . "/plugins/system/sunfw/assets/3rd-party/font-awesome/css/font-awesome.min.css");

// Load template script bootstrap if available.
		if (file_exists(JPATH_ROOT . "/templates/{$this->template}/assets/bootstrap-sass/assets/javascripts/bootstrap.min.js"))
		{
			SunFwCompat::loadJquery();

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/assets/bootstrap-sass/assets/javascripts/popper.min.js"))
			{
			    $this->doc->addScript(
			        $this->baseurl . "/templates/{$this->template}/assets/bootstrap-sass/assets/javascripts/popper.min.js");
			}

$this->doc->addScript(
				$this->baseurl . "/templates/{$this->template}/assets/bootstrap-sass/assets/javascripts/bootstrap.min.js");

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/assets/bootstrap-sass/assets/javascripts/fix-modal-conflict.js"))
			{
    			$this->doc->addScript(
    			    $this->baseurl . "/templates/{$this->template}/assets/bootstrap-sass/assets/javascripts/fix-modal-conflict.js");
			}
		}

// Load Javascript files.
		$this->doc->addScript($this->baseurl . '/plugins/system/sunfw/assets/joomlashine/site/js/utils.js');

// Load template script if available.
		if (file_exists(JPATH_ROOT . "/templates/{$this->template}/js/template.js"))
		{
			$this->doc->addScript($this->baseurl . "/templates/{$this->template}/js/template.js");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/niches/{$niche}/js/template.js"))
		{
			$this->doc->addScript($this->baseurl . "/templates/{$this->template}/niches/{$niche}/js/template.js");
		}

// Load template stylesheet if available.
		if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/template.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/template.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/color_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/color_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/niches/{$niche}/css/template.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/niches/{$niche}/css/template.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/niches/{$niche}/css/color_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/niches/{$niche}/css/color_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/layout_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/layout_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/general_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/general_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/general_overwrite_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/general_overwrite_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/offcanvas_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/offcanvas_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/sections_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/sections_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/modules_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/modules_{$styleID}.css");
		}

if (file_exists(JPATH_ROOT . "/templates/{$this->template}/css/core/menu_{$styleID}.css"))
		{
			$this->doc->addStylesheet($this->baseurl . "/templates/{$this->template}/css/core/menu_{$styleID}.css");
		}

// Fix compatibility problem with MooTools loaded by JSN PowerAdmin.
		$this->doc->addScriptDeclaration(
			'
			if (window.MooTools !== undefined) {
				Element.implement({
					hide: function() {
						return this;
					},
					show: function(v) {
						return this;
					},
					slide: function(v) {
						return this;
					}
				});
			}
		');

// Init layout viewer if URL contains 'suntp=1' in query string.
		if ($this->app->input->getBool('suntp'))
		{
			// If request URI contains only 'Itemid', get real menu item link.
			$Itemid = $this->app->input->getInt('Itemid');

if ($Itemid && !$this->app->input->getCmd('option'))
			{
				$dbo = JFactory::getDbo();
				$qry = $dbo->getQuery(true)
					->select('link')
					->from('#__menu')
					->where("id = {$Itemid}");

$dbo->setQuery($qry);

if ($link = $dbo->loadResult())
				{
					$link .= ( strpos($link, '?') === false ? '?' : '&' ) . "Itemid={$Itemid}&suntp=1";

if ($this->app->input->getInt('showhint'))
					{
						$link .= '&showhint=1';
					}

// Redirect to the real menu item link.
					$this->app->redirect($link);
				}
			}

// Set a flag to state that layout viewer is enabled.
			$this->layoutViewer = true;

// Load layout viewer assets.
			$this->doc->addStylesheet($this->baseurl . '/plugins/system/sunfw/assets/joomlashine/site/css/layout-viewer.css');
			$this->doc->addScript($this->baseurl . '/plugins/system/sunfw/assets/joomlashine/site/js/layout-viewer.js');

$this->doc->addScriptDeclaration(
				'
				sunfw = window.sunfw || {};
				sunfw.layout_viewer = ' . json_encode(
					array(
						'show-layout' => JText::_('SUNFW_LAYOUT_VIEWER_LABEL_SHOW'),
						'hide-layout' => JText::_('SUNFW_LAYOUT_VIEWER_LABEL_HIDE')
					)) . ';
			');
		}
	}

/**
	 * Render template layout.
	 *
	 * @return  void
	 */
	public function renderLayout()
	{
		// Generate path to the requested page template.
		$template = SUNFW_PATH . '/includes/site/pages/' . $this->page . '.php';

// Load page template.
		if (@is_file($template))
		{
			include $template;
		}
	}

/**
	 * Render template component.
	 *
	 * @param   string  $type       Either 'offcanvas', 'section', 'row', 'column' or 'item'.
	 * @param   array   $component  The component data array.
	 * @param   string  $position   If rendering an offcanvas, can be either 'top', 'right', 'bottom' or 'left'.
	 *
	 * @return  void
	 */
	protected function renderComponent($type, $component, $position = null)
	{
		// Only render if component is not disabled.
		if (isset($component['settings']['disabled']) && $component['settings']['disabled'])
		{
			return;
		}

// Generate path to the template file that renders HTML for the component type.
		if ($type != 'item')
		{
			$template = SUNFW_PATH . '/includes/site/components/' . $type . '.php';
		}
		else
		{
			// Make sure item has type.
			if (!isset($component['type']))
			{
				return;
			}

$template = SUNFW_PATH . '/includes/site/components/items/' . $component['type'] . '.php';
		}

// Shorten access to layout builder data.
		$layout = & $this->layout;

// Load component template.
		if (@is_file($template))
		{
			include $template;
		}
	}

/**
	 * Render a section.
	 *
	 * @param   array $section The section data.
	 *
	 * @return  void
	 */
	public static function renderSection($section)
	{
		self::getInstance()->renderComponent('section', $section);
	}

/**
	 * Render a row.
	 *
	 * @param   array $row The row data.
	 *
	 * @return  void
	 */
	public static function renderRow($row)
	{
		self::getInstance()->renderComponent('row', $row);
	}

/**
	 * Render a column.
	 *
	 * @param   array $column The column data.
	 *
	 * @return  void
	 */
	public static function renderColumn($column)
	{
		self::getInstance()->renderComponent('column', $column);
	}

/**
	 * Render an item.
	 *
	 * @param   array $item The item data.
	 *
	 * @return  void
	 */
	public static function renderItem($item)
	{
		// Grab rendered content.
		ob_start();

self::getInstance()->renderComponent('item', $item);

$html = ob_get_contents();

ob_end_clean();

// Check if layout viewer is enabled?
		if (!empty($html) && self::getInstance()->layoutViewer)
		{
			$layoutViewer = ' ' . implode(' ',
				array(
					'layout-element="item"',
					'layout-element-type="' . JText::_('SUNFW_ITEM') . '"',
					'layout-element-name="' . $item['settings']['name'] . '"'
				));

$html = '<div' . $layoutViewer . '>' . $html . '</div>';
		}

echo $html;
	}

/**
	 * Render an offcanvas.
	 *
	 * @param   array   $offcanvas  The offcanvas data array.
	 * @param   string  $position   Either 'top', 'right', 'bottom' or 'left'.
	 *
	 * @return  void
	 */
	public static function renderOffcanvas($offcanvas, $position)
	{
		self::getInstance()->renderComponent('offcanvas', $offcanvas, $position);
	}

/**
	 * Render back-link to JoomlaShine.
	 *
	 * @return  void
	 */
	public static function renderBrandingLink()
	{
		// Get settings.
		$renderer = self::getInstance();

if (!empty($renderer->layout['settings']) && array_key_exists('show_branding_link', $renderer->layout['settings']) &&
			 empty($renderer->layout['settings']['show_branding_link']))
		{
			return;
		}

// Backward compatible.
		elseif (!empty($renderer->system_data) && array_key_exists('showBrandingLink', $renderer->system_data) &&
			 empty($renderer->system_data['showBrandingLink']) && ( empty($renderer->layout['settings']) ||
			 !array_key_exists('show_branding_link', $renderer->layout['settings']) ||
			 empty($renderer->layout['settings']['show_branding_link']) ))
		{
			return;
		}

if (!empty($renderer->layout['settings']) && !empty($renderer->layout['settings']['branding_link_text']))
		{
			$backLink = $renderer->layout['settings']['branding_link_text'];
		}
		else
		{
			// Get back-link from plugin params.
			$params = SunFwHelper::getExtensionParams('plugin', 'sunfw', 'system');

if (empty($params['branding-link']))
			{
				// Define back-links.
				$backLinks = array(
					'Template by JoomlaShine' => 9900,
					'Template from <a href="https://www.joomlashine.com" target="_blank">https://www.joomlashine.com</a>' => 5,
					'Other JoomlaShine Products at <a href="https://www.joomlashine.com/joomla-extensions.html" target="_blank">https://www.joomlashine.com/joomla-extensions.html</a>' => 5,
					'<a href="https://www.joomlashine.com/joomla-templates.html" target="_blank">JSN Theme</a> by JoomlaShine' => 10,
					'This template is <a href="https://www.joomlashine.com/joomla-templates.html" target="_blank">JoomlaShine Product</a>' => 10,
					'<a href="https://www.joomlashine.com/joomla-templates.html" target="_blank">Joomla Templates</a> from JoomlaShine' => 5,
					'<a href="https://www.joomlashine.com/joomla-templates.html" target="_blank">JSN Template by JoomlaShine</a>' => 5,
					'More JSN Templates at <a href="https://www.joomlashine.com/joomla-templates.html" target="_blank">https://www.joomlashine.com/joomla-templates.html</a>' => 50,
					'More information at <a href="https://www.joomlashine.com/blog.html" target="_blank">https://www.joomlashine.com/blog.html</a>' => 10
				);

// Get a random back-link.
				$num = rand(1, 10000);

foreach ($backLinks as $backLink => $ratio)
				{
					$cur = isset($cur) ? $cur + $ratio : $ratio;

if ($num <= $cur)
					{
						break;
					}
				}

// Back-link has 80% containing 'rel="nofollow"'.
				$num = rand(1, 100);

if ($num <= 80)
				{
					$backLink = str_replace('target="_blank"', 'target="_blank"', $backLink);
				}

// Store back-link to plugin params.
				SunFwHelper::updateExtensionParams(array(
					'branding-link' => $backLink
				), 'plugin', 'sunfw', 'system');
			}
			else
			{
				$backLink = $params['branding-link'];
				$tmpBackLink = strtolower($backLink);
				if (strpos($tmpBackLink, 'joomlashine'))
				{
					$realName = preg_replace('/(\d+)$/', ' \\1', str_replace('_', ' ', str_replace('_pro', '', $renderer->template)));
					$realName = str_replace('jsn', 'JSN', $realName);
					$realName = ucwords($realName);
					$backLink = '<div style="text-align:center;background: #ffffff;max-width: 400px;margin: 0 auto;border-radius: 2px;margin-top: 2px;font-size: 10px;opacity: 0.7;">' . $realName . ' is designed by <a href="https://www.joomlashine.com" style="color: #009aca;" title="JoomlaShine is the best Joomla templates & extension provider" target="_blank">JoomlaShine.com</a> | powered by <a href="https://www.joomlashine.com/joomla-templates/jsn-sunframework.html" title="JSN Sun Framework is the best Joomla template framework" style="color: #009aca;" target="_blank">JSN Sun Framework</a></div>';
				}
			}
		}

echo '<div style="text-align:center;">' . $backLink . '</div>';
	}

/**
	 * Render social share buttons.
	 *
	 * @param   string   $context  The context of the content being passed to the plugin
	 * @param   object   &$row     The article object
	 * @param   object   &$params  The article params
	 * @param   integer  $page     The 'page' number
	 *
	 * @return  string|boolean
	 */
	public function renderSocialShare($context, &$row, &$params, $page = 0)
	{
		// Simply return if not rendering content article.
		if ($context != 'com_content.article')
		{
			return false;
		}

// Get social share data.
		$socialShare = isset($this->social_share_data) ? $this->social_share_data : array();

if (empty($socialShare['enabled']) || !(int) $socialShare['enabled'] || !@count( (array) $socialShare['buttons']))
		{
			return false;
		}

// Check if the current article belongs to supported categories?
		if (empty($socialShare['categories']) ||
			 !( in_array('all', $socialShare['categories']) || in_array($row->catid, $socialShare['categories']) ))
		{
			return false;
		}

// Detect the name of the current event.
		static $currentEvent;

$currentEvent = isset($currentEvent) ? 'onContentAfterDisplay' : 'onContentBeforeDisplay';

if ($currentEvent == 'onContentBeforeDisplay' && strpos($socialShare['buttons-position'], 'top-') === false)
		{
			return false;
		}
		elseif ($currentEvent == 'onContentAfterDisplay' && strpos($socialShare['buttons-position'], 'top-') !== false)
		{
			return false;
		}

// Render social share buttons.
		$html = array();
		$class = explode('-', $socialShare['buttons-position']);

$html[] = '<div id="sunfw-social-share" class="text-' . $class[1] . '">';
		$html[] = $socialShare['text'];

foreach ($socialShare['buttons'] as $network)
		{
			$link = '';

switch ($network)
			{
				case 'facebook':
					$link = 'https://www.facebook.com/sharer/sharer.php?u=';
				break;

case 'twitter':
					$link = 'https://twitter.com/home?status=';
				break;

case 'google-plus':
					$link = 'https://plus.google.com/share?url=';
				break;

case 'pinterest':
					$link = 'https://pinterest.com/pin/create/button/?url=';
				break;

case 'linkedin':
					$link = 'https://www.linkedin.com/shareArticle?mini=true&url=';
				break;
			}

if (!empty($link))
			{
				$link .= urlencode(
					JUri::getInstance()->toString(array(
						'scheme',
						'host',
						'port',
						'path',
						'query'
					)));

$html[] = '<a href="javascript:void(0)" onclick="window.open(\'' . $link .
					 '\', \'share\', \'width=\' + parseInt(window.innerWidth * 0.5) + \',height=\' + parseInt(window.innerHeight * 0.5) + \',menubar=no,toolbar=no\');">';
				$html[] = '<i class="fa fa-' . $network . '-square"></i>';
				$html[] = '</a>';
			}
		}

$html[] = '</div>';

// If buttons position is bottom, move buttons to above page navigation.
		if (strpos($socialShare['buttons-position'], 'bottom-') !== false)
		{
			$html[] = '<script type="text/javascript">';
			$html[] = 'var pageNav = document.querySelector(".pagenav");';
			$html[] = 'if (pageNav) {';
			$html[] = 'var socialShare = document.getElementById("sunfw-social-share");';
			$html[] = 'if (socialShare) {';
			$html[] = 'pageNav.parentNode.insertBefore(socialShare, pageNav);';
			$html[] = '}';
			$html[] = '}';
			$html[] = '</script>';
		}

return implode(' ', $html);
	}

/**
	 * Render commenting.
	 *
	 * @param   string   $context  The context of the content being passed to the plugin
	 * @param   object   &$row     The article object
	 * @param   object   &$params  The article params
	 * @param   integer  $page     The 'page' number
	 *
	 * @return  string|boolean
	 */
	public function renderCommenting($context, &$row, &$params, $page = 0)
	{
		// Simply return if not rendering content article.
		if ($context != 'com_content.article')
		{
			return false;
		}

// Get commenting data.
		$commenting = isset($this->commenting_data) ? $this->commenting_data : array();

if (!isset($commenting['enabled']) || !(int) $commenting['enabled'])
		{
			return false;
		}

// Check if the current article belongs to supported categories?
		if (empty($commenting['categories']) ||
			 !( in_array('all', $commenting['categories']) || in_array($row->catid, $commenting['categories']) ))
		{
			return false;
		}

// Detect the name of the current event.
		static $currentEvent;

$currentEvent = isset($currentEvent) ? 'onContentAfterDisplay' : 'onContentBeforeDisplay';

if ($currentEvent == 'onContentBeforeDisplay' && ( empty($commenting['show-counter']) || !(int) $commenting['show-counter'] ))
		{
			return false;
		}

// Render commenting.
		$html = array();
		$page = JUri::getInstance()->toString(array(
			'scheme',
			'host',
			'port',
			'path',
			'query'
		));

if ($currentEvent == 'onContentAfterDisplay' && (int) $commenting['show-text'] && !empty($commenting['heading-text']))
		{
			$html[] = '<h3>' . $commenting['heading-text'] . '</h3>';
		}

switch ($commenting['type'])
		{
			case 'disqus':
				if (empty($commenting['disqus-subdomain']))
				{
					return false;
				}

if ($currentEvent == 'onContentBeforeDisplay')
				{
					$html[] = "<span class=\"sunfw-comment-count\"><i class=\"fa fa-comments\"></i> <a href=\"{$page}#disqus_thread\">0</a></span>";
					$html[] = "<script id=\"dsq-count-scr\" src=\"//{$commenting['disqus-subdomain']}.disqus.com/count.js\" async></script>";
				}
				else
				{
					$html[] = '<div id="disqus_thread"></div>';
					$html[] = '<script type="text/javascript">';
					$html[] = 'var disqus_config = function () {';
					$html[] = 'this.page.url = "' . $page . '";';
					$html[] = "this.page.identifier = '{$commenting['disqus-subdomain']}_article_{$row->id}';";
					$html[] = '};';
					$html[] = '(function() {';
					$html[] = 'var d = document, s = d.createElement("script");';
					$html[] = "s.src = 'https://{$commenting['disqus-subdomain']}.disqus.com/embed.js';";
					$html[] = 's.setAttribute("data-timestamp", +new Date());';
					$html[] = '(d.head || d.body).appendChild(s);';
					$html[] = '})();';
					$html[] = '</script>';
					$html[] = '<noscript>';
					$html[] = "<a href=\"https://{$commenting['disqus-subdomain']}.disqus.com/?url=ref\">";
					$html[] = JText::_('SUNFW_VIEW_THE_DISCUSSION_THREAD');
					$html[] = '</a>';
					$html[] = '</noscript>';
				}
			break;

case 'facebook':
				if (empty($commenting['facebook-app-id']) || $currentEvent == 'onContentBeforeDisplay')
				{
					return false;
				}

if (empty($commenting['facebook-num-posts']))
				{
					$commenting['facebook-num-posts'] = 10;
				}
				elseif ((int) $commenting['facebook-num-posts'] < 1)
				{
					$commenting['facebook-num-posts'] = 1;
				}

$html[] = '<div id="fb-root"></div>';
				$html[] = '<script>(function(d, s, id) {';
				$html[] = 'var js, fjs = d.getElementsByTagName(s)[0];';
				$html[] = 'if (d.getElementById(id)) return;';
				$html[] = 'js = d.createElement(s); js.id = id;';
				$html[] = "js.src = '//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.10&appId={$commenting['facebook-app-id']}';";
				$html[] = 'fjs.parentNode.insertBefore(js, fjs);';
				$html[] = '}(document, "script", "facebook-jssdk"));</script>';
				$html[] = '<div class="fb-comments" data-href="' . $page . '" data-width="100%" data-numposts="' . $commenting['facebook-num-posts'] . '"></div>';
			break;

case 'google-plus':
				if ($currentEvent == 'onContentBeforeDisplay')
				{
					$html[] = '<script src="https://apis.google.com/js/plusone.js"></script>';
					$html[] = '<span class="sunfw-comment-count"><i class="fa fa-comments"></i> <a id="commentscounter" href="#comments">0</a></span>';
					$html[] = '<script>';
					$html[] = 'gapi.commentcount.render("commentscounter", {';
					$html[] = 'href: window.location';
					$html[] = '});';
					$html[] = '</script>';

define('GOOGLE_PLUS_ONE_SCRIPT_LOADED', true);
				}
				else
				{
					if (!defined('GOOGLE_PLUS_ONE_SCRIPT_LOADED'))
					{
						$html[] = '<script src="https://apis.google.com/js/plusone.js"></script>';
					}

$html[] = '<div id="comments"></div>';
					$html[] = '<script>';
					$html[] = 'gapi.comments.render("comments", {';
					$html[] = 'href: window.location,';
					$html[] = 'width: "' .
						 ( empty($commenting['google-comments-box-width']) ? 800 : $commenting['google-comments-box-width'] ) . '",';
					$html[] = 'first_party_property: "BLOGGER",';
					$html[] = 'view_type: "FILTERED_POSTMOD"';
					$html[] = '});';
					$html[] = '</script>';
				}
			break;

case 'intensedebate':
				if (empty($commenting['intensedebate-site-account']))
				{
					return false;
				}

if ($currentEvent == 'onContentBeforeDisplay')
				{
					$html[] = '<span class="sunfw-comment-count"><i class="fa fa-comments"></i> <a href="#comments">';
					$html[] = '<script>';
					$html[] = "var idcomments_acct = '{$commenting['intensedebate-site-account']}';";
					$html[] = "var idcomments_post_id = '{$commenting['disqus-subdomain']}_article_{$row->id}';";
					$html[] = "var idcomments_post_url = '{$page}';";
					$html[] = '</script>';
					$html[] = '<script type="text/javascript" src="https://www.intensedebate.com/js/genericLinkWrapperV2.js"></script>';
					$html[] = '</a></span>';
				}
				else
				{
					$html[] = '<div id="comments"></div>';
					$html[] = '<script>';
					$html[] = "var idcomments_acct = '{$commenting['intensedebate-site-account']}';";
					$html[] = "var idcomments_post_id = '{$commenting['disqus-subdomain']}_article_{$row->id}';";
					$html[] = "var idcomments_post_url = '{$page}';";
					$html[] = '</script>';
					$html[] = '<span id="IDCommentsPostTitle" style="display:none"></span>';
					$html[] = '<script type="text/javascript" src="https://www.intensedebate.com/js/genericCommentWrapperV2.js"></script>';
				}
			break;
		}

if ($currentEvent == 'onContentBeforeDisplay' && $commenting['type'] != 'facebook')
		{
			$html[] = '<script type="text/javascript">';
			$html[] = 'var articleInfo = document.querySelector(".article-info");';
			$html[] = 'if (articleInfo) {';
			$html[] = 'var commentCount = document.querySelector(".sunfw-comment-count");';
			$html[] = 'if (commentCount) {';
			$html[] = 'var container = document.createElement("dd");';
			$html[] = 'articleInfo.appendChild(container);';
			$html[] = 'container.appendChild(commentCount);';
			$html[] = '}';
			$html[] = '}';
			$html[] = '</script>';
		}

return implode(' ', $html);
	}

/**
	 * Do assets optimization.
	 *
	 * @return  void
	 */
	public function optimizeAssets()
	{
		// Remove default Bootstrap.
		unset($this->doc->_scripts[JUri::root(true) . '/media/jui/js/bootstrap.min.js']);
		unset($this->doc->_scripts[JUri::root(true) . '/media/jui/js/bootstrap-tooltip-extended.min.js']);

// Get list of extensions supported by the active template.
		$xml = SunFwHelper::getManifest($this->template);

if (isset($xml->assets) && isset($xml->assets->file))
		{
			// Get Joomla database object.
			$dbo = JFactory::getDbo();

// Get list of extension that will be loaded on the requested page.
			$extensions = array($this->app->input->getCmd('option'));

foreach (SunFwHelper::getModulePositions($this->template) as $position)
			{
				$extensions = array_merge($extensions, JModuleHelper::getModules($position));
			}

foreach ($extensions as &$extension)
			{
				if (is_object($extension))
				{
					$extension = $extension->module;
				}
			}

// Load additional assets, if has, for the requested component and loaded modules.
			$base_link = JUri::root(true) . "/templates/{$this->template}";

foreach ($xml->assets->file as $file)
			{
				if (!isset($file->extension))
				{
					continue;
				}

foreach ($file->extension as $extension)
				{
					if (!isset($extension['load-asset-file-if']))
					{
						continue;
					}

// Check if asset file should be loaded for this extension.
					$load = false;

switch ((string) $extension['load-asset-file-if'])
					{
						case 'requested':
							// Check if the extension is requested.
							$load = in_array((string) $extension['name'], $extensions);
						break;

case 'installed':
							// Check if the extension is installed and enabled.
							$load = $dbo->setQuery(
								$dbo->getQuery(true)
									->select('extension_id')
									->from('#__extensions')
									->where('type = ' . $dbo->quote((string) $extension['type']))
									->where('element = ' . $dbo->quote((string) $extension['name']))
									->where('enabled = 1')
							)->loadResult();
						break;
					}

if ($load)
					{
						// Prepare file URL.
						if (!preg_match('#^(https?://|//|/)#i', (string) $file['path']))
						{
							$file['path'] = $base_link . '/' . (string) $file['path'];
						}

// Load asset file.
						if ((string) $file['type'] === 'css')
						{
							$this->doc->addStyleSheet((string) $file['path']);
						}
						elseif ((string) $file['type'] === 'js')
						{
							$this->doc->addScript((string) $file['path']);
						}

break;
					}
				}
			}
		}

// Prepare script paths.
		$_scripts = array();

foreach ($this->doc->_scripts as $script => $options)
		{
			// Fix a conflict with jQuery on Joomla 4.0 series.
			if (SunFwCompat::isJoomla(4)
				&& preg_match('#/templates/[^/]+/js/template\.js#', $script, $match))
			{
				$script = JUri::root(true) . '/index.php?option=com_ajax&group=system&plugin=sunfw&format=raw&context=load-assets';
				$script .= '&action=get-js&files=' . $match[0] . '&' . JSession::getFormToken() . '=1';
			}

// Verify script path.
			elseif (strpos($script, '/') === 0)
			{
				// Parse script URL.
				$url = parse_url($script);

if (JUri::root(true) != '')
				{
					$path = str_replace(JUri::root(true), JPATH_ROOT, $url['path']);
				}
				else
				{
					$path = JPATH_ROOT . $url['path'];
				}

if (!JFile::exists($path))
				{
					// Refine script path.
					$parts = explode('/', trim($url['path'], '/'));

while (count($parts) && !JFile::exists(JPATH_ROOT . '/' . implode('/', $parts)))
					{
						array_shift($parts);
					}

if (count($parts))
					{
						$script = JUri::root(true) . '/' . implode('/', $parts);

if (!empty($url['query']))
						{
							$script .= '?' . $url['query'];
						}
					}
				}
			}

$_scripts[$script] = $options;
		}

$this->doc->_scripts = $_scripts;

// Get system data.
		$systemData = isset($this->system_data) ? $this->system_data : array();
		$compressJS = false;
		$compressCSS = false;

if (@count((array) $systemData) && isset($systemData['compression']) && @count((array) $systemData['compression']))
		{
			$config = JFactory::getConfig();

// Verify cache directory.
			$cachePath = SunFwSiteHelper::getCacheDirectory($this);

if ($cachePath && ($config->get('ftp_enable') || is_writable($cachePath)))
			{
				if (is_array($systemData['compression']))
				{
					foreach ($systemData['compression'] as $value)
					{
						if ($value == 'css')
						{
							$compressCSS = true;
						}

if ($value == 'js')
						{
							$compressJS = true;
						}
					}
				}

// Compress CSS.
				if ($compressCSS)
				{
					$stylesheets = array();
					$compressedStyleSheets = SunFwSiteCompressCss::compress($this->doc->_styleSheets);

foreach ($compressedStyleSheets as $compressedStyleSheet)
					{
						$stylesheets[$compressedStyleSheet['file']] = array(
							'mime' => 'text/css',
							'media' => ( $compressedStyleSheet['media'] == '' ? 'all' : $compressedStyleSheet['media'] ),
							'attribs' => array()
						);
					}

$this->doc->_styleSheets = $stylesheets;
				}

// Compress JS.
				if ($compressJS)
				{
					$scripts = array();
					$compressedScripts = SunFwSiteCompressJs::compress($this->doc->_scripts);

foreach ($compressedScripts as $compressedScript)
					{
						$src = is_array($compressedScript) ? $compressedScript['src'] : $compressedScript;

$scripts[$src] = is_array($compressedScript) ? $compressedScript['args'] : array(
							'type' => 'text/javascript',
							'options' => array()
						);
					}

$this->doc->_scripts = $scripts;
				}
			}
		}
	}

/**
	 * Finalize HTML output.
	 */
	public function finalizeOutput()
	{
		// Only continue if a page at front-end is requested.
		if (!SunFwCompat::isClient('site') || !SunFwRecognization::detect())
		{
			return;
		}

// Get the current output buffer.
		$buffer = $this->app->getBody();

// Clear favicon link tag.
		$buffer = preg_replace(
			'#<link href="[^>]*/' . $this->template . '/favicon.ico" rel="shortcut icon" type="[^>]*"\s*/?>#',
			'',
			$buffer
		);

// Replace modal class.
		$buffer = str_replace('modal hide fade', 'modal fade', $buffer);

// Check if content has any instance of the shortcode '{jsnmenuitem_meta}'?
		$pattern = '#\{jsnmenuitem_meta\s*(content=)?[\'"]*([^\'"]*)[\'"]*\s*/?\}#i';

if (preg_match_all($pattern, $buffer, $matches, PREG_SET_ORDER))
		{
			foreach ($matches as $match)
			{
				if (empty($match[2]))
				{
					$buffer = str_replace($match[0], '', $buffer);
				}
				else
				{
					// Get menu item parameters.
					if (!isset($mItem))
					{
						$mItem = $this->app->getMenu()->getActive();
					}

if ($mItem)
					{
						if (!isset($mItemParams))
						{
							$mItemParams = $mItem->getParams();
						}

// Generate content to replace.
						$meta = array_map('trim', explode(',', $match[2]));
						$html = '';

foreach ($meta as $param)
						{
							switch ($param)
							{
								case 'menu_item_title':
									if ($mItemParams->get('page_heading', '') != '')
									{
										$html .= $mItemParams->get('page_heading');
									}
									else
									{
										if (isset($mItem->title))
										{
											$html .= $mItem->title;
										}
									}
								break;

case 'link_title_attribute':
									if ($mItemParams->get('menu-anchor_title', '') != '')
									{
										$html .= $mItemParams->get('menu-anchor_title');
									}
								break;

case 'link_image':
									if ($mItemParams->get('menu_image', '') != '')
									{
										$html .= '<img src="' . JUri::root(true) . '/' . $mItemParams->get('menu_image') . '" />';
									}
								break;

case 'link_icon':
									if ($mItemParams->get('sunfw-link-icon', '') != '')
									{
										$html .= '<i class="' . $mItemParams->get('sunfw-link-icon') . '"></i>';
									}
								break;

case 'link_description':
									if ($mItemParams->get('sunfw-page-subheading', '') != '')
									{
										$html .= $mItemParams->get('sunfw-page-subheading');
									}
								break;
							}
						}

// Replace the current shortcode with real content.
						$buffer = str_replace($match[0], $html, $buffer);
					}
					else
					{
						$buffer = str_replace($match[0], '', $buffer);
					}
				}
			}
		}

// Move script tags.
		$buffer = self::moveScriptTags($buffer);

// Minify HTML.
		$buffer = self::minifyHTML($buffer);

// Replace all asset links with CDN URLs.
		$systemData = isset($this->system_data) ? $this->system_data : array();

if (!empty($systemData['cdn_url']))
		{
			// Prepare the base CDN URL.
			$systemData['cdn_url'] = trim($systemData['cdn_url'], '/');

// Find all asset links except external URLs.
			$regex = '#("|\'|$)('
				. JUri::base() . '|' . JUri::base(true) . '/'
				. ')([^"\'$\r\n]+)(\.[a-z0-9]{2,4})(\?[a-z0-9]+)?("|\'|\))#i';

if (preg_match_all($regex, $buffer, $matches, PREG_SET_ORDER))
			{
				foreach ($matches as $match)
				{
					// Do not load HTML and PHP file from CDN.
					if (in_array(strtolower($match[4]), array('.htm', '.html', '.php')))
					{
						continue;
					}

// Do not load cache and tmp file from CDN.
					$ignore_cdn = false;

foreach (array(SunFwSiteHelper::getCacheDirectory(), $this->app->get('tmp_path')) as $tmp_path)
					{
						$tmp_links = implode('|', array(
							str_replace(JPATH_ROOT . '/', JUri::base(), $tmp_path),
							str_replace(JPATH_ROOT, JUri::base(true), $tmp_path)
						));

if (preg_match('#^(' . $tmp_links . ')/#', $match[2] . $match[3]))
						{
							$ignore_cdn = true;

break;
						}
					}

if ($ignore_cdn)
					{
						continue;
					}

// Generate link to the asset on CDN.
					$cdn_url = "{$systemData['cdn_url']}/" . ltrim($match[3], '/');
					$buffer = str_replace(
						$match[0],
						"{$match[1]}{$cdn_url}{$match[4]}{$match[5]}{$match[6]}",
						$buffer
					);
				}
			}
		}

// Fine-tune cookie law output if necessary.
		$cookieLawData = isset($this->cookie_law_data) ? $this->cookie_law_data : array();

if (isset($cookieLawData['enabled']) && (int) $cookieLawData['enabled']
			&& @$cookieLawData['message_type'] == 'article' && !empty($cookieLawData['article']))
		{
			$tmp = explode('', $buffer);

if (count($tmp) == 2)
			{
				$tmp[1] = explode('', $tmp[1]);

if (count($tmp[1]) == 2)
				{
					$tmp[1][0] = str_replace(array('\\t', '\\r', '\\n'), '', $tmp[1][0]);
					$tmp[1][0] = addslashes(stripslashes($tmp[1][0]));
					$tmp[1][0] = str_replace('</', '<\\/', $tmp[1][0]);
					$tmp[1] = implode($tmp[1]);
				}

$buffer = implode($tmp);
			}
		}
        // fix reload google font
        $buffer = str_replace(array('<link href="https://fonts.gstatic.com" rel="stylesheet" />', '<link href="https://fonts.gstatic.com" rel="stylesheet" media="all" attribs="[]"/>'), '<link href="https://fonts.gstatic.com" rel="preconnect" crossorigin />', $buffer);
		// Set new buffer.
		$this->app->setBody($buffer);
	}

/**
	 * Mothod to minify HTML Content
	 *
	 * @param HTML Buffer $body
	 * @return mixed
	 */
	public static function minifyHTML($body)
	{
		// Get settings.
		$renderer = self::getInstance();

$systemData = isset($renderer->system_data) ? $renderer->system_data : array();

if (!@count( (array) $systemData) || !isset($systemData['minifyHTML']) || !(int) $systemData['minifyHTML'])
		{
			return $body;
		}

// Do not touch content inside script tag.
		$parts = explode('<script', $body);

foreach ($parts as $k => $v)
		{
			if ($k == 0)
			{
				$c = $v;
			}
			else
			{
				$v = explode('</script>', $v);
				$c = $v[1];
			}

// Replace the $ character with the equivalent HTML entity.
			$c = str_replace('$', '&dollar;', $c);

// Remove new lines followed by multiple white spaces.
			$regex = '#[\r\n][\t ]+#';
			$c = preg_replace($regex, ' ', $c);

// Remove all spacing characters between 2 HTML open tags.
			$regex = '#(<[^\s]+[^>]*>)[\r\n\t ]+(<[^\s]+[^>]*>)#';
			$c = preg_replace($regex, '\\1\\2', $c);

// Remove unnecessary spacing characters in a HTML tag.
			$regex = '#(<[^\s]+)\s{2,99}#';
			$c = preg_replace($regex, '\\1 ', $c);

$regex = '#([\'"])\s{2,99}([^=]+=[\'"])#';
			$c = preg_replace($regex, '\\1 \\2', $c);

$regex = '#\s+(/?>)#';
			$c = preg_replace($regex, '\\1', $c);

// Make sure empty elements really empty.
			$regex = '#>[\t ]+</#';
			$c = preg_replace($regex, '></', $c);

// Revert the $ character from the equivalent HTML entity.
			$c = str_replace('&dollar;', '$', $c);

if ($k > 0)
			{
				$c = $v[0] . '</script>' . $c;
			}

$parts[$k] = $c;
		}

$body = implode('<script', $parts);

return $body;
	}

/**
	 * Method to move all script tags from head section to the end of body section.
	 *
	 * @param   string  &$html  Generated response body.
	 *
	 * @return  void
	 */
	public static function moveScriptTags($html)
	{
		// Get Joomla input object
		$input = JFactory::getApplication()->input;
		$doc = JFactory::getDocument();
		// Only continue if requested return format is html
		if ($input->getCmd('format', null) != null and $input->getCmd('format') != 'html')
		{
			return $html;
		}

// Only continue if the page format is html
		if ($doc->getType() !== 'html')
		{
			return $html;
		}

// Only continue if the page is not the editing page
		if (strpos($_SERVER["PHP_SELF"], "index.php") === false || $input->getCmd('task', '') == 'edit' ||
			 $input->getCmd('layout', '') == 'edit')
		{
			return $html;
		}

// Check if script movement is already done by our Sun Framework
		if (defined('SUNFW_SCRIPTS_MOVEMENT_COMPLETED'))
		{
			return $html;
		}

// Get settings.
		$renderer = self::getInstance();

$systemData = isset($renderer->system_data) ? $renderer->system_data : array();

if (!@count((array) $systemData) || !isset($systemData['moveJSToBottom']) || !(int) $systemData['moveJSToBottom'])
		{
			return $html;
		}

// Move all script tags to the end of body section
		if ($n = count($parts = preg_split('/>[\s\t\r\n]*<script/', $html)))
		{
			// Re-generated script tags
			$tags = array();

// Inline script code block combination status
			$combine = array();
			$last = 'inline';

// Re-generate HTML document
			$temp = $parts[0];

for ($i = 1; $i < $n; $i++)
			{
				// Get script tag
				$script = substr($parts[$i], 0, strpos($parts[$i], '</script') + 8);

// Remove script tag from its original position
				$parts[$i] = str_replace($script, '', $parts[$i]);

if (strpos($script, 'application/ld+json') !== false || strpos($script, 'application/json') !== false)
				{
					$temp .= ">\n<script" . $script . $parts[$i];
					//$temp .= '';
					continue;
				}

// Leave script tag as is if it is placed inside conditional comments
				if (( preg_match('/([\r\n][\s\t]*)<\!--\[if[^\]]*IE[^\]]*\]/', $temp, $match) and strpos($temp, '<![endif]--') === false ) or
					 ( isset($notClosed) and $notClosed ))
				{
					$temp .= '>' . ( isset($match[1]) ? $match[1] : '' ) . '<script' . $script . $parts[$i];

// Look for the end of conditional comments
					$notClosed = strpos($parts[$i], '<![endif]--') !== false ? false : true;

// Continue the loop
					continue;
				}

// Leave script code block as is if document.write function is used inside
				if (strpos($script, 'document.write') !== false)
				{
					$temp .= ">\n<script" . $script . $parts[$i];

// Continue the loop
					continue;
				}

// Re-generate HTML document
				$temp .= $parts[$i];

// Complete script tag
				$script = '<script' . $script . '>';

if (strpos(
					preg_replace(array(
						'/[\s\t\r\n]+/',
						'/[\s\t\r\n]+=[\s\t\r\n]+/'
					), array(
						' ',
						'='
					), $script), ' src=') === false)
				{
					// Clean-up inline script block
					$script = substr($script, strpos($script, '>') + 1, -9);

if ($last == 'inline')
					{
						// Combine continuous script code block
						$combine[] = $script;
					}
					else
					{
						$combine = array(
							$script
						);
						$last = 'inline';
					}
				}
				else
				{
					// Copy combined script code block
					!count($combine) or $tags[] = '<script type="text/javascript">' . implode(";\n", $combine) . '</script>';

// Copy script tag
					$tags[] = $script;

// Reset variables
					$combine = array();
					$last = '';
				}
			}

// Copy remaining combined script code block
			!count($combine) or $tags[] = '<script type="text/javascript">' . implode(";\n", $combine) . '</script>';

// Inject all re-generated script tags to the end of body section
			if (count($tags))
			{
				$html = str_replace('</body>', implode("\n", $tags) . '</body>', $temp);

// Define a constant to state that scripts movement is completed
				define('SUNFW_SCRIPTS_MOVEMENT_COMPLETED', 1);
			}
		}

return $html;
	}
}