xref: /plugin/googletagmanager/action.php (revision 4747d7b2a586ad61eaa89d5e177dbde374bbd186)
1bfa47fb6SAlex<?php
2bfa47fb6SAlexif(!defined('DOKU_INC')) die();
3bfa47fb6SAlexif(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
4bfa47fb6SAlexrequire_once(DOKU_PLUGIN.'action.php');
5bfa47fb6SAlex
6bfa47fb6SAlexclass action_plugin_googletagmanager extends DokuWiki_Action_Plugin {
7bfa47fb6SAlex
8bfa47fb6SAlex	/**
9bfa47fb6SAlex	 * return some info
10bfa47fb6SAlex	 */
11bfa47fb6SAlex	function getInfo(){
12bfa47fb6SAlex		return array(
13bfa47fb6SAlex			'author' => 'Alexander Lehmann',
14bfa47fb6SAlex			'email'  => 'alexlehm@gmail.com',
15bfa47fb6SAlex			'date'   => '2014-02-01',
16bfa47fb6SAlex			'name'   => 'Google Tag Manager Plugin',
17bfa47fb6SAlex			'desc'   => 'Plugin to embed Google Tag Manager in your wiki.',
18bfa47fb6SAlex			'url'    => 'http://www.lehmann.cx/wiki/projects:dokuwiki_gtm',
19bfa47fb6SAlex		);
20bfa47fb6SAlex	}
21bfa47fb6SAlex
22bfa47fb6SAlex	/**
23bfa47fb6SAlex	 * Register its handlers with the DokuWiki's event controller
24bfa47fb6SAlex	 */
25*4747d7b2SAndreas Gohr	function register(Doku_Event_Handler $controller) {
26bfa47fb6SAlex	    $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE',  $this, '_addHeaders');
27bfa47fb6SAlex	}
28bfa47fb6SAlex
29bfa47fb6SAlex	function _addHeaders (&$event, $param) {
30bfa47fb6SAlex		global $INFO;
31bfa47fb6SAlex		if(!$this->getConf('GTMID')) return;
32bfa47fb6SAlex		$event->data['noscript'][] = array (
33bfa47fb6SAlex		  '_data' => '<iframe src="//www.googletagmanager.com/ns.html?id='.$this->getConf('GTMID').'" height="0" width="0" style="display:none;visibility:hidden"></iframe>',
34bfa47fb6SAlex		);
35bfa47fb6SAlex		$event->data['script'][] = array (
36bfa47fb6SAlex		  'type' => 'text/javascript',
37bfa47fb6SAlex		  '_data' => "(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
38bfa47fb6SAlexnew Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
39bfa47fb6SAlexj=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
40bfa47fb6SAlex'//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
41bfa47fb6SAlex})(window,document,'script','dataLayer','".$this->getConf('GTMID')."');",
42bfa47fb6SAlex		);
43bfa47fb6SAlex	}
44bfa47fb6SAlex}
45bfa47fb6SAlex?>