Loads analytics js dynamically by searching for it next to the library or by using a custom script url option passed to the library on initialisation.

doc/API.md

@@ -51,6 +51,7 @@ The ```options``` parameter is JS object with the following properties:
     10. disableSimulcast - boolean property. Enables/disables simulcast.
     11. enableWindowOnErrorHandler - boolean property (default false). Enables/disables attaching global onerror handler (window.onerror).
     12. disableThirdPartyRequests - if true - callstats will be disabled and the callstats API won't be included.
+    13. analyticsScriptUrl - (optional) custom url to search for the analytics lib, if missing js file will be expected to be next to the library file (the location it is sourced from) 
 
 * ```JitsiMeetJS.JitsiConnection``` - the ```JitsiConnection``` constructor. You can use that to create new server connection.
 

modules/statistics/statistics.js

@@ -41,11 +41,14 @@ function loadCallStatsAPI() {
 // download the API asynchronously. Additionally, Google Analytics will download
 // its implementation asynchronously anyway so it makes sense to append the
 // loading on our side rather than prepend it.
-function loadAnalytics() {
+function loadAnalytics(customScriptUrl) {
+    // if we have a custom script url passed as parameter we don't want to
+    // search it relatively near the library
     JitsiMeetJS.util.ScriptUtil.loadScript(
-        'analytics.js?v=1',
+        customScriptUrl ? customScriptUrl : 'analytics.js',
         /* async */ true,
-        /* prepend */ false);
+        /* prepend */ false,
+        /* relativeURL */ customScriptUrl ? false : true);
 }
 
 /**
@@ -96,7 +99,7 @@ Statistics.init = function (options) {
     Statistics.disableThirdPartyRequests = options.disableThirdPartyRequests;
 
     if (Statistics.disableThirdPartyRequests !== true)
-        loadAnalytics();
+        loadAnalytics(options.analyticsScriptUrl);
 }
 
 function Statistics(xmpp, options) {

modules/util/ScriptUtil.js

@@ -1,3 +1,6 @@
+var currentExecutingScript = require("current-executing-script");
+
+
 /**
  * Implements utility functions which facilitate the dealing with scripts such
  * as the download and execution of a JavaScript file.
@@ -12,21 +15,38 @@ var ScriptUtil = {
      * @param prepend true to schedule the loading of the script as soon as
      * possible or false to schedule the loading of the script at the end of the
      * scripts known at the time
+     * @param relativeURL whether we need load the library from url relative
+     * to the url that lib-jitsi-meet was loaded. Useful when sourcing the
+     * library from different location than the app that is using it
      */
-    loadScript: function (src, async, prepend) {
+    loadScript: function (src, async, prepend, relativeURL) {
         var d = document;
         var tagName = 'script';
         var script = d.createElement(tagName);
         var referenceNode = d.getElementsByTagName(tagName)[0];
 
         script.async = async;
+
+        if (relativeURL) {
+            // finds the src url of the current loaded script
+            // and use it as base of the src supplied argument
+            var scriptEl = currentExecutingScript();
+            if(scriptEl) {
+                var scriptSrc = scriptEl.src;
+                var baseScriptSrc
+                    = scriptSrc.substring(0, scriptSrc.lastIndexOf('/') + 1);
+                if (scriptSrc && baseScriptSrc)
+                    src = baseScriptSrc + src;
+            }
+        }
+
         script.src = src;
         if (prepend) {
             referenceNode.parentNode.insertBefore(script, referenceNode);
         } else {
             referenceNode.parentNode.appendChild(script);
         }
-    },
+    }
 };
 
 module.exports = ScriptUtil;

package.json

@@ -27,7 +27,8 @@
     "jitsi-meet-logger": "git+https://github.com/jitsi/jitsi-meet-logger.git",
     "strophe": "^1.2.2",
     "strophejs-plugins": "^0.0.6",
-    "socket.io-client": "1.3.6"
+    "socket.io-client": "1.3.6",
+    "current-executing-script": "*"
   },
   "devDependencies": {
     "browserify": "11.1.x",