Cherry picked changes from videojs#568 to add analytics to CDN as hotfix

Gruntfile.js

@@ -1,8 +1,9 @@
 module.exports = function(grunt) {
-  var pkg, s3, semver, version, verParts;
+  var pkg, s3, semver, version, verParts, uglify;
 
   semver = require('semver');
   pkg = grunt.file.readJSON('package.json');
+  uglify = require('uglify-js');
 
   try {
     s3 = grunt.file.readJSON('.s3config.json');
@@ -233,7 +234,7 @@ module.exports = function(grunt) {
   grunt.registerTask('dist', 'Creating distribution', function(){
     var exec = require('child_process').exec;
     var done = this.async();
-    var css, jsmin, jsdev;
+    var css, jsmin, jsdev, cdnjs;
 
     // Manually copy each source file
     grunt.file.copy('build/files/minified.video.js', 'dist/video-js/video.js');
@@ -263,6 +264,12 @@ module.exports = function(grunt) {
     css = css.replace(/font\//g, '../f/1/');
     grunt.file.write('dist/cdn/video-js.css', css);
 
+    // Add CDN-specfic JS
+    jsmin = grunt.file.read('dist/cdn/video.js');
+    // GA Tracking Pixel (manually building the pixel URL)
+    cdnjs = uglify.minify('src/js/cdn.js').code.replace('v0.0.0', 'v'+version.full);
+    grunt.file.write('dist/cdn/video.js', jsmin + cdnjs);
+
     // Zip up into video-js-VERSION.zip
     exec('cd dist && zip -r video-js-'+version.full+'.zip video-js && cd ..', { maxBuffer: 500*1024 }, function(err, stdout, stderr){
 

src/js/cdn.js

@@ -0,0 +1,56 @@
+/**
+ * Google Analytics tracking pixel for the freely hosted version of Video.js
+ * at vjs.zencdn.net. We'll use this data to develop a support matrix of
+ * browsers and devices, and possibly track errors.
+ *
+ * This code generates the GA tracking URL without requiring the GA javascript
+ * library.
+ *
+ * @type {Image}
+ */
+;(function(i,w,n,e,l){
+  l=w.location;
+
+  // Setting the source of an image will load the URL even without adding to dom
+  // Using //www, still seems to work for https even though ssl.google is used by google
+  i.src='//www.google-analytics.com/__utm.gif'
+    // Version
+    +'?utmwv=5.4.2'
+    // ID
+    +'&utmac=UA-16505296-2'
+    // Sessions
+    // &utms=2
+    // Cache breaker (using utmcc to do this)
+    +'&utmn='+1
+    +'&utmhn='+e(l.hostname)
+    // Encoding
+    // &utmcs=UTF-8
+    +'&utmsr='+w.screen.availWidth+'x'+w.screen.availHeight
+    // Browser window
+    // &utmvp=1057x1105
+    // Color depth
+    // &utmsc=24-bit
+    +'&utmul='+(n.language||n.userLanguage)
+    // Java
+    // &utmje=1
+    // Flash version
+    // &utmfl=11.7%20r700
+    // Page title
+    // &utmdt=HTML5%20Video%20Player%20%7C%20Video.js
+    // Adsense
+    // &utmhid=1112291628
+    // Referrer, '-' is none
+    // Using current page as referrer so stats show up cleaner than "Direct"
+    +'&utmr='+e(l.href)
+    +'&utmp='+e(l.hostname+l.pathname)
+    // Current time stamp
+    // &utmht=1370890439353
+    // ?
+    // &utmu=q
+    // Cookies! Manually setting visitor ID and setting everything else to 1
+    // Random number used as cache buster instead of utmn
+    +'&utmcc=__utma%3D1.'+Math.floor(Math.random()*1e10)+'.1.1.1.1%3B'
+    // Custom Var: vjsv is the variable name and 1.0.0 is the VJS version
+    +'&utme=8(vjsv)9(v0.0.0)'
+  ;
+})(new Image(),window,navigator,encodeURIComponent);