client/posts: wrap with big progress

fixes #114

client/js/api.js

@@ -1,10 +1,10 @@
 'use strict';
 
-const nprogress = require('nprogress');
 const cookies = require('js-cookie');
 const request = require('superagent');
 const config = require('./config.js');
 const events = require('./events.js');
+const progress = require('./util/progress.js');
 
 class Api extends events.EventTarget {
     constructor() {
@@ -259,18 +259,18 @@ class Api extends events.EventTarget {
             }
 
             if (!options.noProgress) {
-                nprogress.start();
+                progress.start();
             }
 
             abortFunction = () => {
                 req.abort();  // does *NOT* call the callback passed in .end()
-                nprogress.done();
+                progress.done();
                 reject(
                     new Error('The request was aborted due to user cancel.'));
             };
 
             req.end((error, response) => {
-                nprogress.done();
+                progress.done();
                 abortFunction = () => {};
                 if (error) {
                     if (response && response.body) {

client/js/controllers/post_upload_controller.js

@@ -3,6 +3,7 @@
 const api = require('../api.js');
 const router = require('../router.js');
 const misc = require('../util/misc.js');
+const progress = require('../util/progress.js');
 const topNavigation = require('../models/top_navigation.js');
 const Post = require('../models/post.js');
 const PostUploadView = require('../views/post_upload_view.js');
@@ -83,6 +84,7 @@ class PostUploadController {
     }
 
     _uploadSinglePost(uploadable, skipDuplicates) {
+        progress.start();
         let reverseSearchPromise = Promise.resolve();
         if (!uploadable.lookalikesConfirmed) {
             reverseSearchPromise =
@@ -121,8 +123,12 @@ class PostUploadController {
                 });
             this._lastCancellablePromise = savePromise;
             return savePromise;
-        }).catch(error => {
+        }).then(result => {
+            progress.done();
+            return Promise.resolve(result);
+        }, error => {
             error.uploadable = uploadable;
+            progress.done();
             return Promise.reject(error);
         });
     }

client/js/util/progress.js

@@ -0,0 +1,24 @@
+const nprogress = require('nprogress');
+
+let nesting = 0;
+
+function start() {
+    if (!nesting) {
+        nprogress.start();
+    }
+    nesting++;
+}
+
+function done() {
+    nesting--;
+    if (nesting > 0) {
+        nprogress.inc();
+    } else {
+        nprogress.done();
+    }
+}
+
+module.exports = {
+    start: start,
+    done:  done,
+};