fixed GA, including toc links

mkdocs/docs/js/google-analytics.js

@@ -1,34 +1,59 @@
 // Monitor all download links in GA
-window.onload = function() {
-    var a = document.getElementsByTagName('a');
-    var cnt = 0;
-    for (i = 0; i < a.length; i++) {
-        var url = a[i].href;
+
+var dlCnt = 0;
+
+function GAizeDownloadLink(a) {
+        var url = a.href;
         var x = url.indexOf("?");
         if (x != -1) {
             url = url.substr(0, x);
         }
-        var url_test = url.match(/^https?:\/\/.+(\/rpms\/.*\.rpm|\/deb\/.*\.deb|single-binary\/Darwin\/.*\/q|\/archive\/.*\.tar\.gz|\/archive\/.*\.zip|\/windows\/.*\.exe)$/i);
+        var url_test = url.match(/^https?:\/\/.+(\/rpms\/.*\.rpm|\/deb\/.*\.deb|\/single-binary\/Darwin\/.*\/q|\/archive\/.*\.tar\.gz|\/archive\/.*\.zip|\/windows\/.*\.exe)$/i);
         if (url_test) {
-            console.log("Converting url to be GA aware: " + url);
+            console.log("Converting download link to be GA aware: " + url);
             if (url_test.length > 1) {
                 var event_action = url_test[1];
             } else {
                 var event_action = 'unknown_action';
             }
-            a[i].event_action = event_action;
-            cnt = cnt + 1;
-            a[i].onclick = function() {
+            a.event_action = event_action;
+            dlCnt = dlCnt + 1;
+            a.onclick = function() {
                 console.log("Sending GA event for link" + url);
                 var that = this;
-              //ga('send', 'event', 'Downloads', 'Click on ' + this.event_action, this.getAttribute('href'));
                 gtag('event','perform download', { 'event_category': 'Downloads', 'event_label': 'Download ' + this.event_action  , 'value': 1 });
                 setTimeout(function() {
                     location.href = that.href;
                 }, 500);
                 return false;
             };
         }
+}
+
+function GAizeTOCLink(l) {
+           l.onclick = function() {
+               url_test = l.href.match(/^https?:\/\/.+(#.*)$/i);
+               toc_name = url_test[1];
+                var that = this;
+                console.log("Sending GA event for toc link " + this.href);
+
+                gtag('event','navigate', { 'event_category': 'Navigation', 'event_label': 'go to ' + toc_name, 'value': 1 });
+                setTimeout(function() {
+                    location.href = that.href;
+                }, 500);
+                return false;
+            };
+
+}
+
+window.onload = function() {
+    var anchors = document.getElementsByTagName('a');
+    for (i = 0; i < anchors.length; i++) {
+      GAizeDownloadLink(anchors[i]);
+    }
+    var toc_links = document.querySelectorAll('div.md-sidebar[data-md-component=toc] a.md-nav__link');
+    for (i = 0; i < toc_links.length; i++) {
+      GAizeTOCLink(toc_links[i]);
     }
-    console.log("Converted " + cnt + " links to be GA aware");
+    console.log("Converted " + dlCnt + " links to be GA aware");
 }