Part 2 complete code (HTML)
This topic provides the complete code sample used in the tutorial Part 2: Manage app lifecycle and state.
This topic contains these sections:
- Technologies
- Requirements
- Download location
- Building the sample
- Running the sample
- View the code (XAML)
Download location
Technologies
| Programming languages | HTML, JavaScript, CSS |
|---|---|
| Programming models | Windows Runtime |
Requirements
| Minimum supported client | Windows 8.1 |
|---|---|
| Minimum supported server | Windows Server 2012 R2 |
| Minimum required SDK | Microsoft Visual Studio Express 2013 for Windows |
Building the sample
See Getting started with JavaScript: Complete code for the tutorial series.
Running the sample
See Getting started with JavaScript: Complete code for the tutorial series.
View the code (XAML)
default.css
body {
}
.headerClass {
margin-top: 45px;
margin-left: 120px;
}
.mainContent {
margin-top: 31px;
margin-left: 120px;
margin-bottom: 50px;
}
#greetingOutput {
height: 20px;
margin-bottom: 40px;
}
default.html
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>HelloWorld</title> <!-- WinJS references --> <link href="//Microsoft.WinJS.2.0/css/ui-light.css" rel="stylesheet" /> <script src="//Microsoft.WinJS.2.0/js/base.js"></script> <script src="//Microsoft.WinJS.2.0/js/ui.js"></script> <!-- HelloWorld references --> <link href="/css/default.css" rel="stylesheet" /> <script src="/js/default.js"></script> </head> <body> <h1 class="headerClass">Hello, world!</h1> <div class="mainContent"> <p>What's your name?</p> <input id="nameInput" type="text" /> <button id="helloButton">Say "Hello"</button> <div id="greetingOutput"></div> <label for="ratingControlDiv"> Rate this greeting: </label> <div id="ratingControlDiv" data-win-control="WinJS.UI.Rating"> </div> <div id="ratingOutput"></div> </div> </body> </html>
default.js
// For an introduction to the Blank template, see the following documentation: // http://go.microsoft.com/fwlink/p/?LinkID=232509 (function () { "use strict"; var app = WinJS.Application; var activation = Windows.ApplicationModel.Activation; 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. // Retrieve our greetingOutput session state info, // if it exists. var outputValue = WinJS.Application.sessionState.greetingOutput; if (outputValue) { var greetingOutput = document.getElementById("greetingOutput"); greetingOutput.innerText = outputValue; } } args.setPromise(WinJS.UI.processAll().then(function completed() { // Retrieve the div that hosts the Rating control. var ratingControlDiv = document.getElementById("ratingControlDiv"); // Retrieve the actual Rating control. var ratingControl = ratingControlDiv.winControl; // Register the event handler. ratingControl.addEventListener("change", ratingChanged, false); // Retrieve the button and register our event handler. var helloButton = document.getElementById("helloButton"); helloButton.addEventListener("click", buttonClickHandler, false); // Retrieve the input element and register our // event handler. var nameInput = document.getElementById("nameInput"); nameInput.addEventListener("change", nameInputChanged); // Restore app data. var roamingSettings = Windows.Storage.ApplicationData.current.roamingSettings; // Restore the user name. var userName = Windows.Storage.ApplicationData.current.roamingSettings.values["userName"]; if (userName) { nameInput.value = userName; } // Restore the rating. var greetingRating = roamingSettings.values["greetingRating"]; if (greetingRating) { ratingControl.userRating = greetingRating; var ratingOutput = document.getElementById("ratingOutput"); ratingOutput.innerText = greetingRating; } })); } }; app.oncheckpoint = function (args) { // TODO: This application is about to be suspended. Save any state // that needs to persist across suspensions here. You might use the // WinJS.Application.sessionState object, which is automatically // saved and restored across suspension. If you need to complete an // asynchronous operation before your application is suspended, call // args.setPromise(). }; function buttonClickHandler(eventInfo) { var userName = document.getElementById("nameInput").value; var greetingString = "Hello, " + userName + "!"; document.getElementById("greetingOutput").innerText = greetingString; // Save the session data. WinJS.Application.sessionState.greetingOutput = greetingString; } function ratingChanged(eventInfo) { var ratingOutput = document.getElementById("ratingOutput"); ratingOutput.innerText = eventInfo.detail.tentativeRating; // Store the rating for multiple sessions. var appData = Windows.Storage.ApplicationData.current; var roamingSettings = appData.roamingSettings; roamingSettings.values["greetingRating"] = eventInfo.detail.tentativeRating; } function nameInputChanged(eventInfo) { var nameInput = eventInfo.srcElement; // Store the user's name for multiple sessions. var appData = Windows.Storage.ApplicationData.current; var roamingSettings = appData.roamingSettings; roamingSettings.values["userName"] = nameInput.value; } app.start(); })();
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