How to implement form wizard using AngularJS

How to implement form wizard using AngularJS_AngularJS

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Release： 2016-05-16 15:53:43

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Today we will create a multi-step form with animation using AngularJs and the great UI Router and the Angular ngAnimate module. This technique can be used on large forms where you want to simplify user operations.

We have seen that this technology has been applied to many web pages. Things like shopping carts, registration forms, onboarding flows, and many multi-step forms make it easier for users to fill out forms online.

Here we will build it:

2015619120033761.jpg (1064×629)

Using UI Router, which can embed states and display different views for each state, we can make multi-step forms quite easy.

Let’s get down to business and start creating our best form yet!

Create project

Creating a project has a template structure. It requires a layout file, a view file for each form, a format file, and a JavaScript file.

The following is the file list, create them first, and then fill in the content

- index.html
- form.html
- form-profile.html
- form-interests.html
- form-payment.html
- app.js
- style.css

Each form-____.html represents an html file in a hierarchical structure. These structures ultimately create our form structure.

Our layout/template file index.html

We start our project by creating a main file to introduce all the resources we need. Here we use the index.html file as the main file

Now, we load the resources we need (AngularJS, ngAnimate, Ui Router, and other scripts and stylesheets) and set up a ui-view to tell the UI Router where our view needs to be displayed. Here we use Bootstrap to quickly apply styles.

<!-- index.html -->
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
 
  <!-- CSS -->
  <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootswatch/3.1.1/darkly/bootstrap.min.css">
  <link rel="stylesheet" href="style.css">
   
  <!-- JS -->
  <!-- load angular, nganimate, and ui-router -->
  <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js"></script>
  <script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.10/angular-ui-router.min.js"></script>
  <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular-animate.min.js"></script>
  <script src="app.js"></script>
   
</head>
 
<!-- apply our angular app -->
<body ng-app="formApp">
 
  <div class="container">
 
    <!-- views will be injected here -->
    <div ui-view></div>
 
  </div>
 
</body>
</html>

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After completing the introduction of all files, let us enter app.js to start creating the Angular application and the most basic routing configuration. Notice how we applied the Angular App (formApp) to the body.

Create our Angular App app.js

Now let’s create the application and routes. In a large application, you would definitely want to distribute your Angular applications, routes, and controllers into their own modules, but for our simple use case, we will put them all into the happy family of app.js middle.

// app.js
// create our angular app and inject ngAnimate and ui-router 
// =============================================================================
angular.module('formApp', ['ngAnimate', 'ui.router'])
 
// configuring our routes 
// =============================================================================
.config(function($stateProvider, $urlRouterProvider) {
   
  $stateProvider
   
    // route to show our basic form (/form)
    .state('form', {
      url: '/form',
      templateUrl: 'form.html',
      controller: 'formController'
    })
     
    // nested states 
    // each of these sections will have their own view
    // url will be nested (/form/profile)
    .state('form.profile', {
      url: '/profile',
      templateUrl: 'form-profile.html'
    })
     
    // url will be /form/interests
    .state('form.interests', {
      url: '/interests',
      templateUrl: 'form-interests.html'
    })
     
    // url will be /form/payment
    .state('form.payment', {
      url: '/payment',
      templateUrl: 'form-payment.html'
    });
     
  // catch all route
  // send users to the form page 
  $urlRouterProvider.otherwise('/form/profile');
})
 
// our controller for the form
// =============================================================================
.controller('formController', function($scope) {
   
  // we will store all of our form data in this object
  $scope.formData = {};
   
  // function to process the form
  $scope.processForm = function() {
    alert('awesome!');
  };
   
});

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Now we have an application with ngAnimate and ui.router injected. We also established corresponding routes. Notice how we define the url, view file (templateUrl) and controller for each view area.

The form will be our main view area. It also has a subview area form.profile separated by . This idea can be realized when the application state changes (Translator: it may be routing, queryString, etc.), the subview will be displayed in the main view area. (Translator: And it can only update the subview area changes and record the subview area status).

We will demonstrate this in the next section. Now we need to create views for the form and its subview areas.
Form template view form.html

Let’s start by creating a new form.html. This file will serve as a template for the rest of our form view files, just as index.html is used as the overall template for the entire project. All we have to do is include ui-view in this file so that the nested declarations know where to inject their views.

<!-- form.html -->
<div class="row">
<div class="col-sm-8 col-sm-offset-2">
 
  <div id="form-container">
 
    <div class="page-header text-center">
      <h2>Let's Be Friends</h2>
       
      <!-- the links to our nested states using relative paths -->
      <!-- add the active class if the state matches our ui-sref -->
      <div id="status-buttons" class="text-center">
        <a ui-sref-active="active" ui-sref=".profile"><span>1</span> Profile</a>
        <a ui-sref-active="active" ui-sref=".interests"><span>2</span> Interests</a>
        <a ui-sref-active="active" ui-sref=".payment"><span>3</span> Payment</a>
      </div>
    </div>
     
    <!-- use ng-submit to catch the form submission and use our Angular function -->
    <form id="signup-form" ng-submit="processForm()">
 
      <!-- our nested state views will be injected here -->
      <div id="form-views" ui-view></div>
    </form>
 
  </div>
 
  <!-- show our formData as it is being typed -->
  <pre class="brush:php;toolbar:false">
    {{ formData }}

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/* style.css */ /* BASIC STYLINGS ============================================================================= */ body { padding-top:20px; } /* form styling */ #form-container { background:#2f2f2f; margin-bottom:20px; border-radius:5px; } #form-container .page-header { background:#151515; margin:0; padding:30px; border-top-left-radius:5px; border-top-right-radius:5px; } /* numbered buttons */ #status-buttons { } #status-buttons a { color:#FFF; display:inline-block; font-size:12px; margin-right:10px; text-align:center; text-transform:uppercase; } #status-buttons a:hover { text-decoration:none; } /* we will style the span as the circled number */ #status-buttons span { background:#080808; display:block; height:30px; margin:0 auto 10px; padding-top:5px; width:30px; border-radius:50%; } /* active buttons turn light green-blue*/ #status-buttons a.active span { background:#00BC8C; }

<div class="form-group"> <label for="name">Name</label> <input type="text" class="form-control" name="name" ng-model="formData.name"> </div> <div class="form-group"> <label for="email">Email</label> <input type="text" class="form-control" name="email" ng-model="formData.email"> </div> <div class="form-group row"> <div class="col-xs-6 col-xs-offset-3"> <a ui-sref="form.interests" class="btn btn-block btn-info"> Next Section <span class="glyphicon glyphicon-circle-arrow-right"></span> </a> </div> </div>

<label>What's Your Console of Choice?</label> <div class="form-group"> <div class="radio"> <label> <input type="radio" ng-model="formData.type" value="xbox" checked> I like XBOX </label> </div> <div class="radio"> <label> <input type="radio" ng-model="formData.type" value="ps"> I like PS4 </label> </div> </div> <div class="form-group row"> <div class="col-xs-6 col-xs-offset-3"> <a ui-sref="form.payment" class="btn btn-block btn-info"> Next Section <span class="glyphicon glyphicon-circle-arrow-right"></span> </a> </div> </div>

<div class="text-center"> <span class="glyphicon glyphicon-heart"></span> <h3>Thanks For Your Money!</h3> <button type="submit" class="btn btn-danger">Submit</button> </div>

/* style.css */ /* ANIMATION STYLINGS ============================================================================= */ #signup-form { position:relative; min-height:300px; overflow:hidden; padding:30px; } #form-views { width:auto; } /* basic styling for entering and leaving */ /* left and right added to ensure full width */ #form-views.ng-enter, #form-views.ng-leave { position:absolute; left:30px; right:30px; transition:0.5s all ease; -moz-transition:0.5s all ease; -webkit-transition:0.5s all ease; } /* enter animation */ #form-views.ng-enter { -webkit-animation:slideInRight 0.5s both ease; -moz-animation:slideInRight 0.5s both ease; animation:slideInRight 0.5s both ease; } /* leave animation */ #form-views.ng-leave { -webkit-animation:slideOutLeft 0.5s both ease; -moz-animation:slideOutLeft 0.5s both ease; animation:slideOutLeft 0.5s both ease; } /* ANIMATIONS ============================================================================= */ /* slide out to the left */ @keyframes slideOutLeft { to { transform: translateX(-200%); } } @-moz-keyframes slideOutLeft { to { -moz-transform: translateX(-200%); } } @-webkit-keyframes slideOutLeft { to { -webkit-transform: translateX(-200%); } } /* slide in from the right */ @keyframes slideInRight { from { transform:translateX(200%); } to { transform: translateX(0); } } @-moz-keyframes slideInRight { from { -moz-transform:translateX(200%); } to { -moz-transform: translateX(0); } } @-webkit-keyframes slideInRight { from { -webkit-transform:translateX(200%); } to { -webkit-transform: translateX(0); } }