App-Bar in Windows Store Apps

Introduction

In this article I describe how to create Windows Store Apps for App-Bar using JavaScript. If a command in an App-Bar requires a flyout, then one can be shown using the AppBarCommand control. When the user executes a command in a flyout off of an AppBar, then the flyout and the AppBar should both dismiss.

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 apps, add one JavaScript page by right-clicking on the js folder in the Solution Explorer and select Add > new item > JavaScript Page and then provide an appropriate name. In the same way, add a HTML page to your project.

Write the following code in the default.html:

<!DOCTYPE html>

<html>

<head>

</head>

</div>

</div></center>

</body>

</html>

Write the following code in the default.js:

(function () {

"use strict";

var appTitle = "app";

var pages = [

{ url: "page.html" }

];

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

});

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

WinJS.Application.start();

})();

Write the following code in the page.html:

<!DOCTYPE html>

<html>

<head>

</head>

<body>

</div>

</div>

</button>

</button>

</button>

</button>

</div>

<div>

If you delete this photo it cannot be recovered.

</div>

Delete Photo</button>

</div>

</button>

</button>

</div>

</body>

</html>

Write the following code in the script.js:

(function () {

"use strict";

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

ready: function (element, options) {

document.getElementById("confirmDeleteButton").addEventListener("click", confirmDelete, false);

document.getElementById("alwaysSaveMenuItem").addEventListener("click", alwaysSave, false);

document.getElementById("replyMenuItem").addEventListener("click", reply, false);

document.getElementById("replyAllMenuItem").addEventListener("click", replyAll, false);

document.getElementById("forwardMenuItem").addEventListener("click", forward, false);

document.getElementById("appBar").addEventListener("beforeshow", clearStatus, false);

WinJS.log && WinJS.log("To show the bar, swipe up from the bottom of the screen, right-click, or press Windows Key+Z. To dismiss the bar, tap in the application, swipe, right-click, or press Windows Logo+Z again.", "page", "status");

unload: function () {

var appbar = document.getElementById("appBar");

appbar.parentNode.removeChild(appbar);

}

});

function hideFlyoutAndAppBar() {

document.getElementById("respondFlyout").winControl.hide();

document.getElementById("appBar").winControl.hide();

}

function confirmDelete() {

WinJS.log && WinJS.log("You have deleted the item.", "page", "status");

hideFlyoutAndAppBar();

}

function alwaysSave() {

var alwaysSaveState = document.getElementById("alwaysSaveMenuItem").winControl.selected;

WinJS.log && WinJS.log("The Always save option is now set to: " + alwaysSaveState + ".", "page", "status");

hideFlyoutAndAppBar();

}

function reply() {

WinJS.log && WinJS.log("You replied to the message.", "page", "status");

hideFlyoutAndAppBar();

}

function replyAll() {

WinJS.log && WinJS.log("You replied all the message.", "page", "status");

hideFlyoutAndAppBar();

}

function forward() {

WinJS.log && WinJS.log("You forwarded the message.", "page", "status");

hideFlyoutAndAppBar();

}

function clearStatus() {

WinJS.log && WinJS.log("", "page", "status");

}

})();

Summary

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