Refactor settiing stores to work with promises, wait untill all loaded before showing the app

app/scripts/app.js

@@ -2,6 +2,10 @@
 
 const AppModel = require('./models/app-model');
 const AppView = require('./views/app-view');
+const AppSettingsModel = require('./models/app-settings-model');
+const UpdateModel = require('./models/update-model');
+const RuntimeDataModel = require('./models/runtime-data-model');
+const FileInfoCollection = require('./collections/file-info-collection');
 const KeyHandler = require('./comp/key-handler');
 const IdleTracker = require('./comp/idle-tracker');
 const PopupNotifier = require('./comp/popup-notifier');
@@ -25,20 +29,15 @@ ready(() => {
     initModules();
 
     const appModel = new AppModel();
-    SettingsManager.setBySettings(appModel.settings);
-    const configParam = getConfigParam();
-    if (configParam) {
-        appModel.loadConfig(configParam, err => {
-            SettingsManager.setBySettings(appModel.settings);
-            if (err) {
-                showSettingsLoadError();
-            } else {
-                showApp();
-            }
-        });
-    } else {
-        showApp();
-    }
+
+    Promise.all([
+        AppSettingsModel.instance.load(),
+        UpdateModel.instance.load(),
+        RuntimeDataModel.instance.load(),
+        FileInfoCollection.instance.load()
+    ])
+    .then(loadRemoteConfig())
+    .then(showApp);
 
     function isPopup() {
         return (window.parent !== window.top) || window.opener;
@@ -66,6 +65,26 @@ ready(() => {
         });
     }
 
+    function loadRemoteConfig() {
+        return new Promise((resolve, reject) => {
+            SettingsManager.setBySettings(appModel.settings);
+            const configParam = getConfigParam();
+            if (configParam) {
+                appModel.loadConfig(configParam, err => {
+                    SettingsManager.setBySettings(appModel.settings);
+                    if (err) {
+                        showSettingsLoadError();
+                        reject(err);
+                    } else {
+                        resolve();
+                    }
+                });
+            } else {
+                resolve();
+            }
+        });
+    }
+
     function showApp() {
         const skipHttpsWarning = localStorage.skipHttpsWarning || appModel.settings.get('skipHttpsWarning');
         const protocolIsInsecure = ['https:', 'file:', 'app:'].indexOf(location.protocol) < 0;

app/scripts/collections/file-info-collection.js

@@ -11,7 +11,16 @@ const FileInfoCollection = Backbone.Collection.extend({
     },
 
     load: function () {
-        SettingsStore.load('file-info', this.onLoaded.bind(this));
+        return new Promise((resolve, reject) => {
+            SettingsStore.load('file-info', (data, err) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    this.onLoaded(data);
+                    resolve();
+                }
+            });
+        });
     },
 
     onLoaded: function(data) {

app/scripts/comp/launcher.js

@@ -5,7 +5,7 @@ let Launcher;
 if (window.process && window.process.versions && window.process.versions.electron) {
     Launcher = require('./launcher-electron');
 } else if (window.cordova) {
-    // Launcher = require('./launcher-android');
+    // Launcher = require('./launcher-cordova');
 }
 
 module.exports = Launcher;

app/scripts/models/app-model.js

@@ -27,7 +27,7 @@ const AppModel = Backbone.Model.extend({
     initialize: function() {
         this.tags = [];
         this.files = new FileCollection();
-        this.fileInfos = FileInfoCollection.load();
+        this.fileInfos = FileInfoCollection.instance;
         this.menu = new MenuModel();
         this.filter = {};
         this.sort = 'title';

app/scripts/models/app-settings-model.js

@@ -46,15 +46,21 @@ const AppSettingsModel = Backbone.Model.extend({
     },
 
     load: function() {
-        SettingsStore.load('app-settings', this.onLoaded.bind(this));
+        return new Promise((resolve, reject) => {
+            SettingsStore.load('app-settings', (data, err) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    this.onLoaded(data);
+                    resolve();
+                }
+            });
+        });
     },
 
     onLoaded: function(data) {
         if (data) {
             this.upgrade(data);
-        }
-
-        if (data) {
             this.set(data, {silent: true});
         }
     },

app/scripts/models/runtime-data-model.js

@@ -11,7 +11,16 @@ const RuntimeDataModel = Backbone.Model.extend({
     },
 
     load: function() {
-        SettingsStore.load('runtime-data', this.onLoaded.bind(this));
+        return new Promise((resolve, reject) => {
+            SettingsStore.load('runtime-data', (data, err) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    this.onLoaded(data);
+                    resolve();
+                }
+            });
+        });
     },
 
     onLoaded: function(data) {

app/scripts/models/update-model.js

@@ -21,7 +21,16 @@ const UpdateModel = Backbone.Model.extend({
     },
 
     load: function() {
-        SettingsStore.load('update-info', this.onLoaded.bind(this));
+        return new Promise((resolve, reject) => {
+            SettingsStore.load('update-info', (data, err) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    this.onLoaded(data);
+                    resolve();
+                }
+            });
+        });
     },
 
     onLoaded: function(data) {