1<?php 2if(!defined('DOKU_INC')) die(); 3if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/'); 4require_once(DOKU_PLUGIN.'action.php'); 5 6class action_plugin_googletagmanager extends DokuWiki_Action_Plugin { 7 8 /** 9 * return some info 10 */ 11 function getInfo(){ 12 return array( 13 'author' => 'Alexander Lehmann', 14 'email' => 'alexlehm@gmail.com', 15 'date' => '2014-02-01', 16 'name' => 'Google Tag Manager Plugin', 17 'desc' => 'Plugin to embed Google Tag Manager in your wiki.', 18 'url' => 'http://www.lehmann.cx/wiki/projects:dokuwiki_gtm', 19 ); 20 } 21 22 /** 23 * Register its handlers with the DokuWiki's event controller 24 */ 25 function register(&$controller) { 26 $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, '_addHeaders'); 27 } 28 29 function _addHeaders (&$event, $param) { 30 global $INFO; 31 if(!$this->getConf('GTMID')) return; 32 $event->data['noscript'][] = array ( 33 '_data' => '<iframe src="//www.googletagmanager.com/ns.html?id='.$this->getConf('GTMID').'" height="0" width="0" style="display:none;visibility:hidden"></iframe>', 34 ); 35 $event->data['script'][] = array ( 36 'type' => 'text/javascript', 37 '_data' => "(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': 38new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], 39j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 40'//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); 41})(window,document,'script','dataLayer','".$this->getConf('GTMID')."');", 42 ); 43 } 44} 45?>