more user feedback while uploading update.sh file

web/plates/js/settings.js

@@ -238,6 +238,8 @@ function SettingsCtrl($rootScope, $scope, $state, $location, $window, $http) {
 		}
 
 		fd.append("update_file", file);
+		$scope.uploading_update = true;
+		$scope.$apply();
 
 		$http.post(URL_UPDATE_UPLOAD, fd, {
 			withCredentials: true,
@@ -247,11 +249,14 @@ function SettingsCtrl($rootScope, $scope, $state, $location, $window, $http) {
 			transformRequest: angular.identity
 		}).success(function (data) {
 			alert("success. wait 5 minutes and refresh home page to verify new version.");
+			$scope.uploading_update = false;
+			$scope.$apply();
 			window.location.replace("/");
 		}).error(function (data) {
+			$scope.uploading_update = false;
+			$scope.$apply();
 			alert("error");
 		});
-
 	};
 
 	$scope.setOrientation = function(action) {

web/plates/settings.html

@@ -31,17 +31,21 @@
                 <div class="panel-body">
                     <!-- Upload. Temporary. -->
                     <div class="col-xs-12">
-                        <span ng-show="update_files == ''">
+                        <span ng-show="update_files == '' && !uploading_update"> <!-- default: offer file selection -->
                             <span style="position:relative; overflow: hidden;">
                                 <span class="fake-btn fake-btn-block">Click to select System Update file</span>
                                 <input style="opacity:0.0; position: absolute; top: 0; right: 0;" class="col-xs-12" type="file" name="update_file"
                                        onchange="angular.element(this).scope().setUploadFile(this.files)"/>
                             </span>
                         </span>
-                        <span ng-hide="update_files == ''">
+                        <span ng-show="update_files != '' && !uploading_update"> <!-- once selected, btn to upload -->
                             <button class="btn btn-block" onclick="angular.element(this).scope().uploadFile()">
                                 Install {{update_files[0].name}}</button>
                         </span>
+                        <span ng-show="update_files != '' && uploading_update"> <!-- "uploading.." -->
+                            <button class="btn btn-block">
+                                Uploading {{update_files[0].name}}. Please wait...</button>
+                        </span>
                     </div>
                     <div class="form-group reset-flow">
                         <div class="col-xs-12">