/V4/PrismLibrary/Phone/Prism.Interactivity.Tests/App.xaml.cs

//===================================================================================

// Microsoft patterns & practices

// Composite Application Guidance for Windows Presentation Foundation and Silverlight

//===================================================================================

// Copyright (c) Microsoft Corporation.  All rights reserved.

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY

// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

// FITNESS FOR A PARTICULAR PURPOSE.

//===================================================================================

// The example companies, organizations, products, domain names,

// e-mail addresses, logos, people, places, and events depicted

// herein are fictitious.  No association with any real company,

// organization, product, domain name, email address, logo, person,

// places, or events is intended or should be inferred.

//===================================================================================

using System.Windows;

using System.Windows.Navigation;

using Microsoft.Phone.Controls;

using Microsoft.Phone.Shell;



namespace Microsoft.Practices.Prism.Interactivity.Tests

{

    public partial class App : Application

    {



        // Easy access to the root frame

        public PhoneApplicationFrame RootFrame { get; private set; }



        // Constructor

        public App()

        {

            // Global handler for uncaught exceptions. 

            // Note that exceptions thrown by ApplicationBarItem.Click will not get caught here.

            UnhandledException += Application_UnhandledException;



            // Standard Silverlight initialization

            InitializeComponent();



            // Phone-specific initialization

            InitializePhoneApplication();

        }



        // Code to execute when the application is launching (eg, from Start)

        // This code will not execute when the application is reactivated

        private void Application_Launching(object sender, LaunchingEventArgs e)

        {

        }



        // Code to execute when the application is activated (brought to foreground)

        // This code will not execute when the application is first launched

        private void Application_Activated(object sender, ActivatedEventArgs e)

        {

        }



        // Code to execute when the application is deactivated (sent to background)

        // This code will not execute when the application is closing

        private void Application_Deactivated(object sender, DeactivatedEventArgs e)

        {

        }



        // Code to execute when the application is closing (eg, user hit Back)

        // This code will not execute when the application is deactivated

        private void Application_Closing(object sender, ClosingEventArgs e)

        {

        }



        // Code to execute if a navigation fails

        void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)

        {

            if (System.Diagnostics.Debugger.IsAttached)

            {

                // A navigation has failed; break into the debugger

                System.Diagnostics.Debugger.Break();

            }

        }



        // Code to execute on Unhandled Exceptions

        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)

        {

            if (System.Diagnostics.Debugger.IsAttached)

            {

                // An unhandled exception has occurred; break into the debugger

                System.Diagnostics.Debugger.Break();

            }

        }



        #region Phone application initialization



        // Avoid double-initialization

        private bool phoneApplicationInitialized = false;



        // Do not add any additional code to this method

        private void InitializePhoneApplication()

        {

            if (phoneApplicationInitialized)

                return;



            // Create the frame but don't set it as RootVisual yet; this allows the splash

            // screen to remain active until the application is ready to render.

            RootFrame = new PhoneApplicationFrame();

            RootFrame.Navigated += CompleteInitializePhoneApplication;



            // Handle navigation failures

            RootFrame.NavigationFailed += RootFrame_NavigationFailed;



            // Ensure we don't initialize again

            phoneApplicationInitialized = true;

        }



        // Do not add any additional code to this method

        private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)

        {

            // Set the root visual to allow the application to render

            if (RootVisual != RootFrame)

                RootVisual = RootFrame;



            // Remove this handler since it is no longer needed

            RootFrame.Navigated -= CompleteInitializePhoneApplication;

        }



        #endregion

    }

}