Sequential file send

app/js/services.js

@@ -681,6 +681,7 @@ angular.module('myApp.services', [])
   var pendingByRandomID = {};
   var pendingByMessageID = {};
   var pendingAfterMsgs = {};
+  var sendFilePromise = $q.when();
   var tempID = -1;
 
 
@@ -1214,6 +1215,9 @@ angular.module('myApp.services', [])
       }
 
       message.send = function () {
+        var sendFileDeferred = $q.defer();
+
+        sendFilePromise.then(function () {
           var uploaded = false,
               uploadPromise = MtpApiFileManager.uploadFile(file);
 
@@ -1274,10 +1278,18 @@ angular.module('myApp.services', [])
 
           media.progress.cancel = function () {
             if (!uploaded) {
+              sendFileDeferred.resolve();
               uploadPromise.cancel();
               cancelPendingMessage(randomIDS);
             }
           }
+
+          uploadPromise['finally'](function () {
+            sendFileDeferred.resolve();
+          });
+        });
+
+        sendFilePromise = sendFileDeferred.promise;
       };
 
       saveMessages([message]);