Add survey feedback toast and button (#610)

handlers/www/assets/app.js

@@ -847,6 +847,44 @@
       return "None";
     }
   }])
+  .controller("SurveyToastController", function($mdToast) {
+    var ctrl = this;
+    ctrl.openSurvey = function() {
+      $mdToast.hide("ok");
+    }
+    ctrl.closeToast = function() {
+      $mdToast.hide();
+    }
+  })
+  .component('surveyRequest', {
+    template : "<md-button class='md-mini' ng-click='$ctrl.openSurvey()'>Give feedback</md-button>",
+    controller : function($mdToast, $timeout) {
+      var $ctrl = this;
+
+      $ctrl.$onInit = function() {
+        window.$mdToast = $mdToast;
+        $timeout(function() {
+          $mdToast.show({
+            hideDelay: 0,
+            position: 'bottom right',
+            controller: "SurveyToastController",
+            controllerAs: "ctrl",
+            bindToControlller: true,
+            templateUrl: "survey-toast.html"
+          }).then(function (result) {
+            if (result === "ok") {
+              $ctrl.openSurvey();
+            }
+          });
+        }, 300000); // Display toast after five minutes
+      }
+
+      $ctrl.openSurvey = function() {
+        window.open("https://docker.qualtrics.com/jfe/form/SV_267blbhIjjf3Mma", "_blank");
+      }
+
+    },
+  })
   .service('TerminalService', ['$window', '$rootScope', function($window, $rootScope) {
     var fullscreen;
     var fontSize = getFontSize();