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Dir : ~/home/vo/umj/mathJax/

View File Name : MathJaxPlugin.inc.php

<?php

/**
 * @file plugins/generic/mathjax/MathJaxPlugin.inc.php
 *
 * Copyright (c) 2017 Vasyl Ostrovskyi
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @class MathJaxPlugin
 * @ingroup plugins_generic_mathjax
 *
 * @brief Plugin to allow MathJax scripts to be added to OJS
 */

// $Id$


import('lib.pkp.classes.plugins.GenericPlugin');

class MathJaxPlugin extends GenericPlugin {
	/**
	 * Register the plugin, if enabled; note that this plugin
	 * @param $category string
	 * @param $path string
	 * @return boolean
	 */
	function register($category, $path, $mainContextId = NULL) {
		if (parent::register($category, $path, $mainContextId)) {
			if ($this->getEnabled($mainContextId)) {
				HookRegistry::register('TemplateManager::display', array(&$this, 'insertMJ'));
			}
			return true;
		}
		return false;
	}


	/**
	 * Hook callback function for TemplateManager::display
	 * @param $hookName string
	 * @param $args array
	 * @return boolean
	 */
	function insertMJ($hookName, $args) {
		$templateManager =& $args[0];
		$mathJaxConfig = "<script type=\"text/x-mathjax-config\">\n MathJax.Hub.Config({\n   tex2jax: {inlineMath: [['$','$'], ['\\\\(','\\\\)']]},\n   processEscapes: true\n }); \n</script>\n";
		$mathJaxURL = "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML";
		$templateManager->addJavaScript('mathjax', $mathJaxURL, 
			array(
				'contexts' => array('frontend', 'backend')
			)
		);
		$templateManager->addHeader('math', $mathJaxConfig, array('contexts' => array('frontend', 'backend')));
		return false;
	}

	/**
	 * Get the display name of this plugin
	 * @return string
	 */
	function getDisplayName() {
		return __('plugins.generic.mathjax.name');
	}

	/**
	 * Get the description of this plugin
	 * @return string
	 */
	function getDescription() {
		return __('plugins.generic.mathjax.description');
	}
}
?>