1 files changed, 19 insertions, 14 deletions
diff --git a/js/cheesesteak.js b/js/cheesesteak.js
index 661d4b7..513573c 100644
--- a/js/cheesesteak.js
+++ b/js/cheesesteak.js
@@ -157,13 +157,15 @@
     var xhr = new XMLHttpRequest();
 
     xhr.open(opts.method, this.url, true);
-    xhr.upload.addEventListener('loadstart', function() {
+
+    function initProgressBar(evt) {
       for (i = 0; i < len; i++) {
         files[i].uploadedSize = 0;
       }
-    });
+    }
+    xhr.upload.addEventListener('loadstart', initProgressBar);
 
-    xhr.upload.addEventListener('progress', function(evt) {
+    function updateProgressBar(evt) {
       if (evt.lengthComputable) {
         var size = evt.loaded;
 
@@ -186,23 +188,26 @@
       }
 
       _this.emit('uploadprogress', evt, files);
-    }, false);
-
-    xhr.upload.addEventListener('loadstart', function(evt) {
-      _this.emit('uploadstart', evt);
-    });
+    }
+    xhr.upload.addEventListener('progress', updateProgressBar, false);
 
-    xhr.upload.addEventListener('load', function(evt) {
+    // The upload is complete, now tell the user to wait for URLs.
+    function postUpload(evt) {
       _this.emit('uploadcomplete', evt);
-    });
+    }
+    xhr.upload.addEventListener('load', postUpload);
 
-    xhr.addEventListener('progress', function(evt) {
+    // Tell the browser the upload completed and wait for response.
+    function postProgress(evt) {
       _this.emit('progress', evt);
-    });
+    }
+    xhr.addEventListener('progress', postProgress);
 
-    xhr.addEventListener('load', function(evt) {
+    // Send a success/error response. Nothing more to do.
+    function uploadFinished(evt) {
       _this.emit('load', evt, xhr.responseText);
-    });
+    }
+    xhr.addEventListener('load', uploadFinished);
 
     xhr.send(data);