Enhancing User Experience in AngularJS UI-Router by Updating State without Refreshing the Template

Question

Enhancing User Experience in AngularJS UI-Router by Updating State without Refreshing the Template

I have noticed that every time I navigate to a different state, my templates and controllers are refreshing. This is not the behavior I want; I would like to retain the values entered into a form on contact.html when switching to home.html. Currently, I am working with Angular v1.6 & UI-Router v1+. Here is how my setup looks:

function() {
        "use strict";
        angular.module("App").config(["$stateProvider", "$urlRouterProvider", "$locationProvider", "$compileProvider", function(a, b, c, d) {
            c.html5Mode(false), c.hashPrefix(""), b.otherwise("/"), a.state("home", {
                url: "/",
                templateUrl: "views/home.html",
                controller: "HomeCtrl"
            }).state("projekte", {
                url: "/projekte",
                templateUrl: "views/projects.html",
                controller: "ProjectsCtrl"
            }).state("labor", {
                url: "/labor",
                templateUrl: "views/lab.html",
                controller: "LabCtrl"
            }).state("kontakt", {
                url: "/kontakt",
                templateUrl: "views/contact.html",
                controller: "ContactCtrl"
            })
            d.debugInfoEnabled(false);
        }])
    }.call(this),

This is the structure of my index.html:

<body ng-app="App">
   <main ui-view="">
           ..contact.html ..projects.html
  </main>
</body>

The question I have is:

How can I switch between states without causing a refresh in my templates/controllers?

javascript angularjs angular-ui-router

Answer 1

Answer №1

Why do you want to make that change? It's the default behavior and should be sufficient for your relatively simple requirement. Instead, consider saving the model value of the form by creating a service or factory, then load the form fields from that data during the initial load using dependency injection.

myApp.service('formDataService', function(){
  var formData;
  this.getData = function(){
    return formData;
  }
  this.setData = function(data){
    formData = data;
  }
});

Your controller code could look like this:

myApp.controller('ContactCtrl', function($scope, formDataService){
    var initialData = formDataService.getData();
    $scope.user = angular.copy(initialData);
    $scope.$watch('user', function(newVal, oldVal){
      formDataService.setData($scope.user);
    });
});

In this code snippet, $scope.user represents the model object for the form fields.

Check out the Plunker for more information.

Answer 2

Why do you want to make that change? It's the default behavior and should be sufficient for your relatively simple requirement. Instead, consider saving the model value of the form by creating a service or factory, then load the form fields from that data during the initial load using dependency injection.

myApp.service('formDataService', function(){
  var formData;
  this.getData = function(){
    return formData;
  }
  this.setData = function(data){
    formData = data;
  }
});

Your controller code could look like this:

myApp.controller('ContactCtrl', function($scope, formDataService){
    var initialData = formDataService.getData();
    $scope.user = angular.copy(initialData);
    $scope.$watch('user', function(newVal, oldVal){
      formDataService.setData($scope.user);
    });
});

In this code snippet, $scope.user represents the model object for the form fields.

Check out the Plunker for more information.

Enhancing User Experience in AngularJS UI-Router by Updating State without Refreshing the Template

Answer №1

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