Netflix Movie Explorer a Metro Application: Creating Step by Step

Download source code of this article from here

In this article we will follow step by step approach to create Netflix Movie Explorer Metro Application. We will use HTML and WinJS to create this application. See the video to understand expected behavior of the application.

Some of the features of application are as following

  • Browse movies from Netflix
  • Rate the Movies
  • Browse movies in Semantic views
  • Share the Rating of a particular movie with social media or via mail

To get it started, launch Visual Studio and create a new project by choosing Blank App Project template from Windows Metro Style tab. You need VS12 to create this application.

image

After creating project in default.html change “content goes here “with following

clip_image001

After that follow the steps as below,

Step 1: Create Data Source

Very first we need to create data source by reading JSON data from OData feed of Netflix movie database. That can be done using WinJS.xhr function

image

In above code snippet, we are performing following tasks

  • Making a call to Netflix OData using WinJS .xhr function
  • As input parameter to xhr function, we are passing exact url of OData Endpoint.
  • We are applying projection and providing JSON format information in URL itself.
  • Once JSON data is fetched form Netflix server data is being parsed and pushed as individual items in the WinJS list.

After fetching, data is being parsed using JSON Parser and individual items are pushed to movieArray. movieArray is defined as following

image

Step 2: Create ListView

After creating data source we need put WinJS ListView control on the page.

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A HTML div can be converted to WinJS ListView by setting data-win-control attribute to WinJS.UI.ListView. Other options can be set like layout of the ListView. In this case we have set it to GridLayout, so data will be displayed horizontally. ListView needs data source to display data. Data source can be set either in HTML or in code behind. Let us set data source of movieListView to the movieArray.

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Make sure that you are setting data source of ListView after the WinJS.xhr function call. At this point of time if you go ahead and run the application, you should be getting following output.

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Step 3: Create ListView Template

In above output, data is in raw form. To make data more immersive and to show the way we want, we need to create template out of data. After creating template, it needs to be set as attribute of ListView. Template can be created as following

image

Template can be created by setting data-win-control attribute of HTML div as WinJS.Binding.Template . Inside div element

  • Binding image to Picture property of WinJS List or Array
  • Binding inner text of h4 element to Title property of WinJS List or Array

Once Template is created, it needs to be attached to the ListView. After attaching Template, ListView will be as following

image

No go ahead and run the application, you should be getting following shape of the application

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Before we move ahead, let us put some CSS on ListView to make it more immersive

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After applying styles on List View, your application should be in following shape.

image

Step 4: Grouping of DataSource

Next we want to group the movies as per first character of their title. For that create group functions as following.

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After creating grouped functions, we need to create grouped item list and set it as itemDataSource of List View. Modify setting of ListView data source as following

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Let us go ahead and run the application. At this point shape of the application should be as following

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Step 5: Creating Header Template

Above we can see the header data is in raw form. So to make header information more immersive, you need to create template for header and then attach that to ListView

A header template can be created in same way as of item template. Header template is created as following

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After creating Header Template, we need to attach this to ListView. So ListView will be modified as following

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Let us go ahead and run the application. At this point shape of the application should be as following

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Step 6: Adding Semantic Zoom

Next we need to add sematic zoom to the ListView. For that very first let us create a Semantic Zoom Template. We want to display movies with first letter of title in semantic zoom view.

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After creating Semantic Zoom View template, we need to add a SemanticZoom WinJS control. Inside the Semantic Zoom control we need to put ListView (created in previous steps) and a Semantic Zoom View. We can put that as following.

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After adding Semantic Zoom view we need to set data source of it. This can be set as following.

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Last work we need to do in Semantiz Zoom is to apply styles.

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Let us go ahead and run the application. At this point shape of the application should be as following

image

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Step 7: Adding Output DIV

Now we need to add code to add output div. When user will select a particular movie detail of that movie will be displayed in the output div for rating.

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And in code behind on the touch of a particular ListView item, we need to display that information in output div. For that add the following code in code behind

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In above code snippet

  • Iteminvoked event is attached to the ListView
  • When item is invoked then itemPromise function is being called with parameter invokedItem
  • On the invokeditem data we can fetch attributes of ListView items
  • In last set the vales of HTML elements from selected items data.

Let us go ahead and run the application. At this point shape of the application should be as following

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Step 8: Adding Rating control

To allow user for Rating, let us go ahead and add a WinJS Rating control. Rating control can be added as following

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We can create a Rating control by setting data-win-control attribute of a div as WinJS.UI.Rating. Other data options like maxRating and averageRating can be set in data-win-options attribute.

After adding Rating control, we need to write code to allow users to perform rating.

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Let us go ahead and run the application. At this point shape of the application should be as following

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Step 9: Adding Code to Share Contract

We want our user should able to share the rating of movie on other applications like Mail, Twitter, Facebook. For that we will have to use ShareContract.

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In above code we are getting the request and setting the title and description in data property. After that creating text to share and setting it in the data request. Above is the code to simple text sharing via ShareContract feature of Windows 8. Once we have share function is ready, we need to get the current view of application using DataTransferManager.getForCurrentView () and attach and event handler datarequested on same. When datarequested event will be fired ShowandShareContract function (created above) will be called and user will able to share using Share Charm.

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Put above code just before ProcessAll() function and do not forget to declare following variable globally

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Let us go ahead and run the application. At this point shape of the application should be as following. This is our final application.

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In this application user can browse the movies, rate a particular movie and then share the rating with the friends on social media or mail.

Conclusion

In this post we learnt to create a Metro Application from scratch. Even though you can download source code of this article from here , I am sharing the codes below . Feel free to use them as you required.

default.html


<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8" />
 <title>testdemo</title>

<!-- WinJS references -->
 <link href="//Microsoft.WinJS.1.0.RC/css/ui-dark.css" rel="stylesheet" />
 <script src="//Microsoft.WinJS.1.0.RC/js/base.js"></script>
 <script src="//Microsoft.WinJS.1.0.RC/js/ui.js"></script>

<!-- testdemo references -->
 <link href="/css/default.css" rel="stylesheet" />
 <script src="/js/default.js"></script>
</head>
<body>
 <h1>Netflix Movie Application</h1>
 <div id="moviesTemplate"
 data-win-control="WinJS.Binding.Template">
 <div style="width: 150px; height: 130px;">
 <img src="#" style="width: 100px; height: 100px;"
 data-win-bind="alt: title; src: picture" />
 <div>
 <h4 data-win-bind="innerText:title"></h4>
 </div>
 </div>
 </div>

<div id="headerTemplate"
 data-win-control="WinJS.Binding.Template"
 style="display: none">
 <div class="simpleHeaderItem">
 <h1 data-win-bind="innerText: title1"></h1>
 </div>
 </div>

<div id="semanticZoomTemplate" data-win-control="WinJS.Binding.Template"
 style="display: none">
 <div class="semanticZoomItem">
 <h1 class="semanticZoomItem-Text"
 data-win-bind="innerText: title1">
 </h1>
 </div>
 </div>
 <div id="semanticZoomDiv" data-win-control="WinJS.UI.SemanticZoom">
 <div id="movieListView"
 data-win-control="WinJS.UI.ListView"
 data-win-options="{itemTemplate:moviesTemplate,
 groupHeaderTemplate: headerTemplate
 ,layout: {type: WinJS.UI.GridLayout} }">
 </div>
 <div id="zoomedOutListView"
 data-win-control="WinJS.UI.ListView"
 data-win-options="{itemTemplate: semanticZoomTemplate,
 selectionMode: 'none',
 tapBehavior: 'invoke',
 swipeBehavior: 'none' }">

</div>
 </div>
 <table>
 <tr>
 <td>
 <img id="selectedPlayerImg"
 style="width:250px;height:250px;"/>
 </td>
 <td>
 <h3>You are rating movie</h3><br />
 <span id="selectedPlayer"></span> <br />
 <span id="ratingPlayer"></span> <br />

<div id="ratingcontrol"
 data-win-control="WinJS.UI.Rating"
 data-win-options="{maxRating:10,avrageRating:4}" />

 </td>
 </tr>
</table>

&nbsp;

</body>
</html>

default.js


// For an introduction to the Blank template, see the following documentation:
// http://go.microsoft.com/fwlink/?LinkId=232509
(function () {
 "use strict";

 var app = WinJS.Application;
 var activation = Windows.ApplicationModel.Activation;
 WinJS.strictProcessing();
 var movieArray = new WinJS.Binding.List();
 var dataTransferManager;
 var movieName;
 var selectRating;
 app.onactivated = function (args) {

 if (args.detail.kind === activation.ActivationKind.launch) {
 if (args.detail.previousExecutionState !== activation.ApplicationExecutionState.terminated) {
 // TODO: This application has been newly launched. Initialize
 // your application here.
 } else {
 // TODO: This application has been reactivated from suspension.
 // Restore application state here.
 }

 dataTransferManager = Windows.ApplicationModel.
 DataTransfer.
 DataTransferManager.getForCurrentView();
 dataTransferManager.addEventListener("datarequested", ShowandShareContract);
 args.setPromise(WinJS.UI.processAll());

 WinJS.xhr({
 url: "http://odata.netflix.com/Catalog/Titles" +
 "?$format=json&$select=ShortName,BoxArt&$top=300"
 }).then(function (xhr) {
 var movies = JSON.parse(xhr.response).d;
 movies.forEach(function (i) {
 movieArray.push({
 title: i.ShortName,
 picture: i.BoxArt.MediumUrl
 });
 });
 });

var lstMovies = document.getElementById("movieListView").winControl;
 var groupedItemsList = movieArray.createGrouped(getGroupKey, getGroupData, compareGroups);
 lstMovies.itemDataSource = groupedItemsList.dataSource;
 lstMovies.groupDataSource = groupedItemsList.groups.dataSource;
 var lstMoviesZoom = document.getElementById("zoomedOutListView").winControl;
 lstMoviesZoom.itemDataSource = groupedItemsList.groups.dataSource;
 lstMovies.addEventListener("iteminvoked", function (eventObject) {
 eventObject.detail.itemPromise.then(function (invokedItem) {
 var selecteplayer = document.getElementById('selectedPlayer');
 selecteplayer.innerHTML = "<h2>" + invokedItem.data.title + "</h2>";
 movieName = invokedItem.data.title;

var selecteplayerImg = document.getElementById('selectedPlayerImg');
 selecteplayerImg.src = invokedItem.data.picture;

var ratingcontrolc = document.getElementById("ratingcontrol").winControl;
 ratingcontrolc.addEventListener("change", function () {
 selectRating = ratingcontrolc.userRating;
 document.getElementById('ratingPlayer').innerHTML = "<h3> as "
 + selectRating +
 " on scale of 10 <h3>";

});

});
 }, false);

&nbsp;
 }
 };

function compareGroups(left, right) {
 return left.charCodeAt(0) - right.charCodeAt(0);
 }

function getGroupKey(dataItem) {
 return dataItem.title.toUpperCase().charAt(0);
 }

function getGroupData(dataItem) {
 return {
 title1: dataItem.title.toUpperCase().charAt(0)
 };
 }

function ShowandShareContract(e) {

var request = e.request;
 request.data.properties.title = "Netflix Movie Explorer Application";
 request.data.properties.description = "Sharing from Netflix Movie Explorer Application";
 var textToShare = movieName + " has been rated " + selectRating + " out of 10 ";
 request.data.setText(textToShare);

}

app.oncheckpoint = function (args) {

 };

app.start();
})();

default.css

body {
}

@media screen and (-ms-view-state: fullscreen-landscape) {
}

@media screen and (-ms-view-state: filled) {
}

@media screen and (-ms-view-state: snapped) {
}

@media screen and (-ms-view-state: fullscreen-portrait) {
}
.win-listview
 {
 height: 500px;
 width: auto;
 border: 1px solid gray;
 }

.win-listview .win-container {
 margin: 10px;
 }
 .win-listview .win-container:hover {
 background-color: red;
 border-color: red;
 }

.semanticZoomItem
{
 width: 130px;
 height: 130px;
 background-color: rgba(38, 160, 218, 1.0);
}

.semanticZoomItem .semanticZoomItem-Text
 {
 padding: 10px;
 line-height: 150px;
 white-space: nowrap;
 color: white;
 }

&nbsp;

&nbsp;

I hope you find this post useful. Thanks for reading

Working with OData and WinJS ListView in Metro Application

In this post we will see how to consume Netflix OData feed in HTML based Metro Application. Movies information will be displayed as following. At the end of this post, we should have output as below,

image

Netflix exposed all movies information as OData and that is publicly available to use. Netflix OData feed of movies are available at following location

http://odata.netflix.com/Catalog/

Essentially we will pull movies information from Netflix and bind it to ListView Control of WinJS. We will start with creating a blank application.

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In the code behind (default.js) define a variable of type WinJS List.

image

Now we need to fetch the movies detail from Netflix. For this we will use xhr function of WinJS. As the parameter of function, we will have to provide URL of the OData feed.

image

In above code snippet, we are performing following tasks

  • Making a call to Netflix OData using WinJS .xhr function
  • As input parameter to xhr function, we are passing exact url of OData endpoint.
  • We are applying projection and providing JSON format information in URL itself.
  • Once JSON data is fetched form Netflix server data is being parsed and pushed as individual items in the WinJS list.

As of now we do have data with us. Now let us go ahead and create a ListView control. You can create WinJS ListView as following. Put below code on the default.html

clip_image002

In above code we are simply creating a WinJS ListView and setting up some basic attributes like layout and itemTemplate. Now we need to create Item Template. Template is used to format data and controls how data will be displayed. Template can be created as following

image

In above code, we are binding data from the data source to different HTML element controls. At last in code behind we need to set the data source of ListView

image

Before you go ahead and run the application just put some CSS to make ListView more immersive. Put below CSS in default.css

image

Now go ahead and run the application. You should be getting the expected output as following

image

Let us consolidate all the codes from discussion.

Default.html

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8" />
 <title>testdemo</title>

<!-- WinJS references -->
 <link href="//Microsoft.WinJS.1.0.RC/css/ui-dark.css" rel="stylesheet" />
 <script src="//Microsoft.WinJS.1.0.RC/js/base.js"></script>
 <script src="//Microsoft.WinJS.1.0.RC/js/ui.js"></script>

<!-- testdemo references -->
 <link href="/css/default.css" rel="stylesheet" />
 <script src="/js/default.js"></script>
</head>
<body>
 <h1>Netflix Movie Application</h1>
 <div id="moviesTemplate"
 data-win-control="WinJS.Binding.Template">
 <div style="width: 150px; height: 130px;">
 <img src="#" style="width: 100px; height: 100px;"
 data-win-bind="alt: title; src: picture" />
 <div>
 <h4 data-win-bind="innerText:title"></h4>
 </div>
 </div>
 </div>

<div id="movieListView"
 data-win-control="WinJS.UI.ListView"
 data-win-options="{itemTemplate : moviesTemplate,
 layout: {type: WinJS.UI.GridLayout} }">
 </div>

</body>
</html>

Code behind will have following codes

Default.js


// For an introduction to the Blank template, see the following documentation:
// http://go.microsoft.com/fwlink/?LinkId=232509
(function () {
 "use strict";

 var app = WinJS.Application;
 var activation = Windows.ApplicationModel.Activation;
 WinJS.strictProcessing();
 var movieArray = new WinJS.Binding.List();
 app.onactivated = function (args) {

 if (args.detail.kind === activation.ActivationKind.launch) {
 if (args.detail.previousExecutionState !== activation.ApplicationExecutionState.terminated) {
 // TODO: This application has been newly launched. Initialize
 // your application here.
 } else {
 // TODO: This application has been reactivated from suspension.
 // Restore application state here.
 }
 args.setPromise(WinJS.UI.processAll());

 WinJS.xhr({
 url: "http://odata.netflix.com/Catalog/Titles" +
 "?$format=json&$select=ShortName,BoxArt&$top=300"
 }).then(function (xhr) {
 var movies = JSON.parse(xhr.response).d;
 movies.forEach(function (i) {
 movieArray.push({
 title: i.ShortName,
 picture: i.BoxArt.MediumUrl
 });
 });
 });
 var lstMovies = document.getElementById("movieListView").winControl;
 lstMovies.itemDataSource = movieArray.dataSource;

 }
 };

app.oncheckpoint = function (args) {

 };

app.start();
})();

And CSS will be as following

default.css


body {
}

@media screen and (-ms-view-state: fullscreen-landscape) {
}

@media screen and (-ms-view-state: filled) {
}

@media screen and (-ms-view-state: snapped) {
}

@media screen and (-ms-view-state: fullscreen-portrait) {
}
.win-listview
 {
 height: 100%;
 width: auto;

 }
 .win-listview .win-container {
 margin: 10px;
 }
 .win-listview .win-container:hover {
 background-color: red;
 border-color: red;
 }
 .semanticZoomItem
{
 width: 130px;
 height: 130px;
 background-color: rgba(38, 160, 218, 1.0);
}

.semanticZoomItem .semanticZoomItem-Text
 {
 padding: 10px;
 line-height: 150px;
 white-space: nowrap;
 color: white;
 }

In this way we can work with OData and winJS ListView. I hope you find this post useful. Thanks for reading.

First look of Telerik India office

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Telerik  is a recognized name in the space of developer tools. We make controls that deliver popping user experience and tools to make a normal developer a Ninja!

Once we wondered – where do we find the most Developer Ninja’s in the world? The answer didn’t really require us to be enlightened. So, Telerik India came into being!

I am here with some snaps of Telerik India office. Our office is on Sohna Road, Gurgaon. It is on the 5th floor of Shopper Stop building.

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On behalf of Telerik India, I invite you to visit our office and have a technological chit chat over coffee. Trust me our coffee machine‘s coffee is worth trying once