117 lines
4 KiB
C++
117 lines
4 KiB
C++
|
//*********************************************************
|
||
|
|
//
|
||
|
|
// Copyright (c) Microsoft. All rights reserved.
|
||
|
|
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
|
||
|
|
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
|
||
|
|
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
|
||
|
|
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
|
||
|
|
//
|
||
|
|
//*********************************************************
|
||
|
|
|
||
|
|
//
|
||
|
|
// App.xaml.cpp
|
||
|
|
// Implementation of the App.xaml class.
|
||
|
|
//
|
||
|
|
|
||
|
|
#include "pch.h"
|
||
|
|
#include "MainPage.xaml.h"
|
||
|
|
#include "AdvancedCapture.xaml.h"
|
||
|
|
#include "Common\SuspensionManager.h"
|
||
|
|
|
||
|
|
using namespace SDKSample;
|
||
|
|
using namespace SDKSample::Common;
|
||
|
|
using namespace SDKSample::MediaCapture;
|
||
|
|
|
||
|
|
using namespace Concurrency;
|
||
|
|
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::Core;
|
||
|
|
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;
|
||
|
|
|
||
|
|
/// <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();
|
||
|
|
this->Suspending += ref new SuspendingEventHandler(this, &SDKSample::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="pArgs">Details about the launch request and process.</param>
|
||
|
|
void App::OnLaunched(LaunchActivatedEventArgs^ pArgs)
|
||
|
|
{
|
||
|
|
this->LaunchArgs = pArgs;
|
||
|
|
|
||
|
|
// Do not repeat app initialization when already running, just ensure that
|
||
|
|
// the window is active
|
||
|
|
if (pArgs->PreviousExecutionState == ApplicationExecutionState::Running)
|
||
|
|
{
|
||
|
|
Window::Current->Activate();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create a Frame to act as the navigation context and associate it with
|
||
|
|
// a SuspensionManager key
|
||
|
|
auto rootFrame = ref new Frame();
|
||
|
|
SuspensionManager::RegisterFrame(rootFrame, "AppFrame");
|
||
|
|
|
||
|
|
auto prerequisite = task<void>([](){});
|
||
|
|
if (pArgs->PreviousExecutionState == ApplicationExecutionState::Terminated)
|
||
|
|
{
|
||
|
|
// Restore the saved session state only when appropriate, scheduling the
|
||
|
|
// final launch steps after the restore is complete
|
||
|
|
prerequisite = SuspensionManager::RestoreAsync();
|
||
|
|
}
|
||
|
|
prerequisite.then([=]()
|
||
|
|
{
|
||
|
|
// 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->Content == nullptr)
|
||
|
|
{
|
||
|
|
if (!rootFrame->Navigate(TypeName(MainPage::typeid)))
|
||
|
|
{
|
||
|
|
throw ref new FailureException("Failed to create initial page");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Place the frame in the current Window and ensure that it is active
|
||
|
|
Window::Current->Content = rootFrame;
|
||
|
|
Window::Current->Activate();
|
||
|
|
}, task_continuation_context::use_current());
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <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
|
||
|
|
|
||
|
|
auto deferral = e->SuspendingOperation->GetDeferral();
|
||
|
|
SuspensionManager::SaveAsync().then([=]()
|
||
|
|
{
|
||
|
|
deferral->Complete();
|
||
|
|
});
|
||
|
|
}
|