diff options
Diffstat (limited to 'winrt/winapp/App.xaml.cpp')
-rw-r--r-- | winrt/winapp/App.xaml.cpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/winrt/winapp/App.xaml.cpp b/winrt/winapp/App.xaml.cpp new file mode 100644 index 00000000..d51b19bb --- /dev/null +++ b/winrt/winapp/App.xaml.cpp @@ -0,0 +1,109 @@ +// +// App.xaml.cpp +// Implementation of the App class. +// + +#include "pch.h" +#include "MainPage.xaml.h" + + +using namespace winapp; + +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 +} |