Adding separate handlers for xhr

Adding param xhrStatus to response and separate handlers for onerror, onabort, ontimeout

Author: tipycalFlow

src/ng/httpBackend.js

@@ -64,7 +64,7 @@ function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDoc
       var jsonpDone = jsonpReq(url, callbackPath, function(status, text) {
         // jsonpReq only ever sets status to 200 (OK), 404 (ERROR) or -1 (WAITING)
         var response = (status === 200) && callbacks.getResponse(callbackPath);
-        completeRequest(callback, status, response, '', text);
+        completeRequest(callback, status, response, '', text, '');
         callbacks.removeCallback(callbackPath);
       });
     } else {
@@ -99,18 +99,27 @@ function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDoc
             status,
             response,
             xhr.getAllResponseHeaders(),
-            statusText);
+            statusText,
+            'Request Completed');
       };
 
       var requestError = function() {
         // The response is always empty
         // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error
-        completeRequest(callback, -1, null, null, '');
+        completeRequest(callback, -1, null, null, '', 'Request Error');
+      };
+
+      var requestAborted = function() {
+        completeRequest(callback, -1, null, null, '', 'Request Aborted');
+      };
+
+      var requestTimedOut = function() {
+        completeRequest(callback, -1, null, null, '', 'Request Timed Out');
       };
 
       xhr.onerror = requestError;
-      xhr.onabort = requestError;
-      xhr.ontimeout = requestError;
+      xhr.onabort = requestAborted;
+      xhr.ontimeout = requestTimedOut;
 
       forEach(eventHandlers, function(value, key) {
           xhr.addEventListener(key, value);
@@ -160,14 +169,14 @@ function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDoc
       }
     }
 
-    function completeRequest(callback, status, response, headersString, statusText) {
+    function completeRequest(callback, status, response, headersString, statusText, xhrStatus) {
       // cancel timeout and subsequent timeout promise resolution
       if (isDefined(timeoutId)) {
         $browserDefer.cancel(timeoutId);
       }
       jsonpDone = xhr = null;
 
-      callback(status, response, headersString, statusText);
+      callback(status, response, headersString, statusText, xhrStatus);
     }
   };