1bfa47fb6SAlex<?php 2bfa47fb6SAlex 3*fea4b096SAlexander Lehmannuse dokuwiki\Extension\ActionPlugin; 4*fea4b096SAlexander Lehmannuse dokuwiki\Extension\EventHandler; 5*fea4b096SAlexander Lehmann 6*fea4b096SAlexander Lehmannclass action_plugin_googletagmanager extends ActionPlugin 7737086b3SAlexander Lehmann{ 8737086b3SAlexander Lehmann public const GTMID = 'GTMID'; 931d01fc3SNickeau 10bfa47fb6SAlex /** 11bfa47fb6SAlex * Register its handlers with the DokuWiki's event controller 12bfa47fb6SAlex */ 13*fea4b096SAlexander Lehmann public function register(EventHandler $controller) 14737086b3SAlexander Lehmann { 158b69576fSAlexander Lehmann $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'addHeaders'); 16bfa47fb6SAlex } 17bfa47fb6SAlex 18737086b3SAlexander Lehmann public function addHeaders(&$event, $param) 19737086b3SAlexander Lehmann { 208b69576fSAlexander Lehmann $GTMID = $this->getConf(self::GTMID); 218b69576fSAlexander Lehmann if (!$GTMID) return; 2231d01fc3SNickeau 238b69576fSAlexander Lehmann $is_AW_tag = substr($GTMID, 0, 3) == 'AW-'; 240fc69df8SAlexander Lehmann 250fc69df8SAlexander Lehmann if ($is_AW_tag) { 26*fea4b096SAlexander Lehmann $event->data['script'][] = ['src' => "https://www.googletagmanager.com/gtag/js?id=" . $GTMID]; 27*fea4b096SAlexander Lehmann $event->data['script'][] = ['type' => 'text/javascript', '_data' => "window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);}" . 28bcb1a129SAlexander Lehmann " gtag('js', new Date()); gtag('config', '" . 29737086b3SAlexander Lehmann $GTMID . 30*fea4b096SAlexander Lehmann "');"]; 310fc69df8SAlexander Lehmann } else { 32*fea4b096SAlexander Lehmann $event->data['noscript'][] = ['_data' => '<iframe src="https://www.googletagmanager.com/ns.html?id=' . 33bcb1a129SAlexander Lehmann $GTMID . 34*fea4b096SAlexander Lehmann '" height="0" width="0" style="display:none;visibility:hidden"></iframe>']; 35*fea4b096SAlexander Lehmann $event->data['script'][] = ['type' => 'text/javascript', '_data' => "(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': 36bfa47fb6SAlexnew Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], 37bfa47fb6SAlexj=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 388b69576fSAlexander Lehmann'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); 39737086b3SAlexander Lehmann})(window,document,'script','dataLayer','" . 40737086b3SAlexander Lehmann $GTMID . 41*fea4b096SAlexander Lehmann "');"]; 42bfa47fb6SAlex } 43bfa47fb6SAlex } 440fc69df8SAlexander Lehmann} 45