Reader Level:
ARTICLE

Video Playlist in Windows Store Apps

Posted by Deepak Arora Articles | Windows Store Apps November 09, 2012
In this article I described how to create a Windows Store App for video Playlist using JavaScript.
  • 0
  • 0
  • 1746

Introduction

Today we are going to learn how to create a Windows Store App for Video Playlist using JavaScript. I assume, you can create a simple Windows Store App using JavaScript. For more help visit Simple Windows Store Apps using JavaScript.

To start the creation of the app, add two JavaScript pages by right-clicking on the js folder in the Solution Explorer and select Add > new item > JavaScript Page and then give an appropriate name. In the same way, add one HTML page to your project.

Write the following code in default.html:

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8" />

    <title>app</title>

    <link rel="stylesheet" href="//Microsoft.WinJS.1.0/css/ui-light.css" />

    <script src="//Microsoft.WinJS.1.0/js/base.js"></script>

    <script src="//Microsoft.WinJS.1.0/js/ui.js"></script>

    <link rel="stylesheet" href="/css/default.css" />

    <script src="/js/scrtipt1.js"></script>

    <script src="/js/default.js"></script>

</head>

<body role="application" style="background-color: lightcoral">

    <center><div id="rootGrid">

          <div id="content">

            <h1 id="featureLabel"></h1>

            <div id="contentHost"></div>

        </div>

         </div></center>

</body>

</html>

Write the following code in default.js:
 

(function () {

    "use strict";

    var appTitle = "";

    var pages = [

        { url: "page.html", title: "Stereo 3D" }

    ];

    function activated(eventObject) {

        if (eventObject.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.launch) {

            eventObject.setPromise(WinJS.UI.processAll().then(function () {

                var url = WinJS.Application.sessionState.lastUrl || pages[0].url;

                return WinJS.Navigation.navigate(url);

            }));

        }

    }

    WinJS.Navigation.addEventListener("navigated", function (eventObject) {

        var url = eventObject.detail.location;

        var host = document.getElementById("contentHost");

        host.winControl && host.winControl.unload && host.winControl.unload();

        WinJS.Utilities.empty(host);

        eventObject.detail.setPromise(WinJS.UI.Pages.render(url, host, eventObject.detail.state).then(function () {

            WinJS.Application.sessionState.lastUrl = url;

        }));

    });

    WinJS.Namespace.define("App", {

        appTitle: appTitle,

        pages: pages,

        videoOnError: function (error) {

            switch (error.target.error.code) {

                case error.target.error.MEDIA_ERR_ABORTED:

                    App.displayError("You aborted the video playback.");

                    break;

                case error.target.error.MEDIA_ERR_NETWORK:

                    App.displayError("A network error caused the video download to fail part-way.");

                    break;

                case error.target.error.MEDIA_ERR_DECODE:

                    App.displayError("The video playback was aborted due to a corruption problem or because the video used features your browser did not support.");

                    break;

                case error.target.error.MEDIA_ERR_SRC_NOT_SUPPORTED:

                    App.displayError("The video could not be loaded, either because the server or network failed or because the format is not supported.");

                    break;

                default:

                    App.displayError("An unknown error occurred.");

                    break;

            }

        },

        displayStatus: function (msg) {

            WinJS.log && WinJS.log(msg, null, "status");

        },

        displayError: function (msg) {

            WinJS.log && WinJS.log(msg, null, "error");

        }

    });

    WinJS.Application.addEventListener("activated", activated, false);

    WinJS.Application.start();

})(); 


Write the following code in page.html:
 

<!DOCTYPE html>

<html>

<head>

    <title></title>

    <script src="/js/script.js"></script>

</head>

<body>

    <div data-win-control="App.pageInput">

        <button class="action" id="multitrackStart">

            Play</button>

        <button class="action" id="multitrackStartChannel1">

            English</button>

        <button class="action" id="multitrackStartChannel2">

            Hindi</button>

        <button class="action" id="multitrackStartChannel3">

            Chinese</button>

        <button class="action" id="multitrackStartChannel4">

            Polish</button>

        <button class="action secondary" id="multitrackStop">

            Pause</button>

        <br />

        <br />

    </div>

    <div data-win-control="App.pageOutput">

        <video id="multitrackVideo" src="/vidio/LadyWashington_MultiLang.mp4" style="position: relative; width: 50%;" poster="images/images.jpeg" loop>

        </video>

    </div>

</body>

</html>

Write the following code in script.js:
 

(function () {

    "use strict";

    var page = WinJS.UI.Pages.define("page.html", {

        ready: function (element, options) {

            WinJS.Utilities.query("#multitrackStart").listen("click", multitrackStart);

            WinJS.Utilities.query("#multitrackStartChannel1").listen("click", getMultitrackFunction("en"));

            WinJS.Utilities.query("#multitrackStartChannel2").listen("click", getMultitrackFunction("hi"));

            WinJS.Utilities.query("#multitrackStartChannel3").listen("click", getMultitrackFunction("zh"));

            WinJS.Utilities.query("#multitrackStartChannel4").listen("click", getMultitrackFunction("pl"));

            WinJS.Utilities.query("#multitrackStop").listen("click", multitrackStop);

            WinJS.Utilities.query("#multitrackVideo").listen("error", App.videoOnError);

        },

        unload: function () {

            multitrackStop();

        }

    });

    function multitrackStart() {

        App.displayError("");

        var vid = WinJS.Utilities.query("#multitrackVideo")[0];

        vid.play();

    }

    function getMultitrackFunction(channel) {

        return function () {

            App.displayError("");

            var vid = WinJS.Utilities.query("#multitrackVideo")[0];

            for (var ch = 0; ch < vid.audioTracks.length; ch++) {

                vid.audioTracks[ch].enabled = (vid.audioTracks[ch].language === channel);

            }

        };

    }

    function multitrackStop() {

        var vid = WinJS.Utilities.query("#multitrackVideo")[0];

        if (!vid.paused) {

            vid.pause();

        }

    }

})();


Write the following code in script1.js:
 

(function () {

    var pageOutput = WinJS.Class.define(

        function (element, options) {

            element.winControl = this;

            this.element = element;

            new WinJS.Utilities.QueryCollection(element)

                        .setAttribute("role", "region")

                        .setAttribute("aria-labelledby", "outputLabel")

                        .setAttribute("aria-live", "assertive");

            element.id = "output";

 

            this._addOutputLabel(element);

            this._addStatusOutput(element);

        }, {

            _addOutputLabel: function (element) {

                var label = document.createElement("h2");

                label.id = "outputLabel";

                label.textContent = "Output";

                element.parentNode.insertBefore(label, element);

            },

            _addStatusOutput: function (element) {

                var statusDiv = document.createElement("div");

                statusDiv.id = "statusMessage";

                element.insertBefore(statusDiv, element.childNodes[0]);

            }

        }

    );

    var currentpageUrl = null;

    WinJS.Navigation.addEventListener("navigating", function (evt) {

        currentpageUrl = evt.detail.location;

    });

    WinJS.log = function (message, tag, type) {

        var statusDiv = document.getElementById("statusMessage");

    };

    function activated(e) {

        WinJS.Utilities.query("#featureLabel")[0].textContent = App.appTitle;

    }

    WinJS.Application.addEventListener("activated", activated, false);

    WinJS.Namespace.define("App", {

        pageOutput: pageOutput

    });

})(); 


Output:

playlist-window-store-app.jpg

multitrack-in-windows-store-apps.jpg

Summary

In this article I described how to create a Windows Store App for video Playlist using JavaScript. I hope this article has helped you in understanding this topic. Please share it. If you know more about this, your feedback and constructive contributions are welcome.

COMMENT USING

Trending up