Introduction
In this article I describe how to create a Windows Store App for receiving a file using JavaScript. In File Explorer, create a file and double-click the file. This application is brought to the foreground. The filename is displayed in the output field. In my previous article I described how to launch a file in Windows Store apps. For this visit, Launching a file in windows Store using Java Script.
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 one JavaScript page 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.
![receving-a-file-in-windows-store-apps.jpg]()
Write the following code in default.html:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></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/script1.js"></script>
<script src="/js/default.js"></script>
</head>
<body role="application" style="background-color: lightpink">
<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" }
];
function activated(e) {
var url = null;
var arg = null;
if (e.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.file) {
url = pages[2].url;
arg = e.detail.files;
} else if (e.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.protocol) {
url = pages[3].url;
arg = e.detail.uri;
} else if (e.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.launch) {
url = WinJS.Application.sessionState.lastUrl || pages[0].url;
}
if (url !== null) {
e.setPromise(WinJS.UI.processAll().then(function () {
return WinJS.Navigation.navigate(url, arg);
}));
}
}
WinJS.Navigation.addEventListener("navigated", function (evt) {
var url = evt.detail.location;
var host = document.getElementById("contentHost");
host.winControl && host.winControl.unload && host.winControl.unload();
WinJS.Utilities.empty(host);
WinJS.UI.Pages.render(url, host, evt.detail.state).done(function () {
WinJS.Application.sessionState.lastUrl = url;
});
});
WinJS.Namespace.define("App", {
appTitle: appTitle,
pages: pages
});
WinJS.Application.addEventListener("activated", activated, false);
WinJS.Application.start();
})();
Write the following code in page.html:
<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel="stylesheet" href="/css/receive-file.css" />
<script src="/js/script.js"></script>
</head>
<body>
<div data-win-control="App.pageOutput">
</div>
</body>
</html>
Write the following code in script.js:
(function () {
"use strict";
var page = WinJS.UI.Pages.define("page.html", {
processed: function (element, files) {
if (files) {
WinJS.log && WinJS.log("File activation received. The number of files received is " + files.size + ". The first received file is " + files[0].name + ".", "app", "status");
}
},
ready: function (element, options) {
}
});
})();
Summary
In this app I described receiving a file in a Windows Store app using JavaScript. I hope this article has helped you to understand this topic. Please share if you know more about this. Your feedback and constructive contributions are welcome.