87 lines
2.1 KiB
PHP
87 lines
2.1 KiB
PHP
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<?php
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/**
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* @package Joomla.Plugin
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* @subpackage System.Highlight
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_BASE') or die;
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/**
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* System plugin to highlight terms.
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*
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* @package Joomla.Plugin
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* @subpackage System.Highlight
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* @since 2.5
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*/
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class PlgSystemHighlight extends JPlugin
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{
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/**
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* Method to catch the onAfterDispatch event.
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*
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* This is where we setup the click-through content highlighting for.
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* The highlighting is done with JavaScript so we just
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* need to check a few parameters and the JHtml behavior will do the rest.
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*
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* @return boolean True on success
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*
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* @since 2.5
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*/
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public function onAfterDispatch()
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{
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// Check that we are in the site application.
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if (JFactory::getApplication()->isAdmin())
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{
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return true;
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}
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// Set the variables
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$input = JFactory::getApplication()->input;
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$extension = $input->get('option', '', 'cmd');
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// Check if the highlighter is enabled.
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if (!JComponentHelper::getParams($extension)->get('highlight_terms', 1))
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{
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return true;
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}
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// Check if the highlighter should be activated in this environment.
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if (JFactory::getDocument()->getType() !== 'html' || $input->get('tmpl', '', 'cmd') === 'component')
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{
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return true;
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}
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// Get the terms to highlight from the request.
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$terms = $input->request->get('highlight', null, 'base64');
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$terms = $terms ? json_decode(base64_decode($terms)) : null;
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// Check the terms.
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if (empty($terms))
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{
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return true;
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}
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// Clean the terms array
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$filter = JFilterInput::getInstance();
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$cleanTerms = array();
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foreach ($terms as $term)
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{
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$cleanTerms[] = htmlspecialchars($filter->clean($term, 'string'));
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}
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// Activate the highlighter.
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JHtml::_('behavior.highlighter', $cleanTerms);
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// Adjust the component buffer.
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$doc = JFactory::getDocument();
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$buf = $doc->getBuffer('component');
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$buf = '<br id="highlighter-start" />' . $buf . '<br id="highlighter-end" />';
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$doc->setBuffer($buf, 'component');
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return true;
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}
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}
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