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/***
* Copyright (C) Microsoft. All rights reserved.
* Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
*
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* App.xaml.cpp - Implementation of the App class.
*
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/
#include "pch.h"
#include "MainPage.xaml.h"
using namespace FacebookDemo;
using namespace Platform;
using namespace Windows::ApplicationModel;
using namespace Windows::ApplicationModel::Activation;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Controls::Primitives;
using namespace Windows::UI::Xaml::Data;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Interop;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::UI::Xaml::Navigation;
// The Blank Application template is documented at http://go.microsoft.com/fwlink/?LinkId=234227
/// <summary>
/// Initializes the singleton application object. This is the first line of authored code
/// executed, and as such is the logical equivalent of main() or WinMain().
/// </summary>
App::App()
{
InitializeComponent();
Suspending += ref new SuspendingEventHandler(this, &App::OnSuspending);
}
/// <summary>
/// Invoked when the application is launched normally by the end user. Other entry points
/// will be used when the application is launched to open a specific file, to display
/// search results, and so forth.
/// </summary>
/// <param name="args">Details about the launch request and process.</param>
void App::OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs ^ args)
{
auto rootFrame = dynamic_cast<Frame ^>(Window::Current->Content);
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active
if (rootFrame == nullptr)
{
// Create a Frame to act as the navigation context and associate it with
// a SuspensionManager key
rootFrame = ref new Frame();
if (args->PreviousExecutionState == ApplicationExecutionState::Terminated)
{
// TODO: Restore the saved session state only when appropriate, scheduling the
// final launch steps after the restore is complete
}
if (rootFrame->Content == nullptr)
{
// When the navigation stack isn't restored navigate to the first page,
// configuring the new page by passing required information as a navigation
// parameter
if (!rootFrame->Navigate(TypeName(MainPage::typeid), args->Arguments))
{
throw ref new FailureException("Failed to create initial page");
}
}
// Place the frame in the current Window
Window::Current->Content = rootFrame;
// Ensure the current window is active
Window::Current->Activate();
}
else
{
if (rootFrame->Content == nullptr)
{
// When the navigation stack isn't restored navigate to the first page,
// configuring the new page by passing required information as a navigation
// parameter
if (!rootFrame->Navigate(TypeName(MainPage::typeid), args->Arguments))
{
throw ref new FailureException("Failed to create initial page");
}
}
// Ensure the current window is active
Window::Current->Activate();
}
}
/// <summary>
/// Invoked when application execution is being suspended. Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
void App::OnSuspending(Object ^ sender, SuspendingEventArgs ^ e)
{
(void)sender; // Unused parameter
(void)e; // Unused parameter
// TODO: Save application state and stop any background activity
}
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