vsixtest/App.xaml.cpp

   1 //
   2 // App.xaml.cpp
   3 // Implementation of the App class.
   4 //
   5
   6 #include "pch.h"
   7 #include "MainPage.xaml.h"
   8
   9 using namespace vsixtest;
  10
  11 using namespace Platform;
  12 using namespace Windows::ApplicationModel;
  13 using namespace Windows::ApplicationModel::Activation;
  14 using namespace Windows::Foundation;
  15 using namespace Windows::Foundation::Collections;
  16 using namespace Windows::UI::Xaml;
  17 using namespace Windows::UI::Xaml::Controls;
  18 using namespace Windows::UI::Xaml::Controls::Primitives;
  19 using namespace Windows::UI::Xaml::Data;
  20 using namespace Windows::UI::Xaml::Input;
  21 using namespace Windows::UI::Xaml::Interop;
  22 using namespace Windows::UI::Xaml::Media;
  23 using namespace Windows::UI::Xaml::Navigation;
  24
  25 /// <summary>
  26 /// Initializes the singleton application object.  This is the first line of authored code
  27 /// executed, and as such is the logical equivalent of main() or WinMain().
  28 /// </summary>
  29 App::App()
  30 {
  31         InitializeComponent();
  32         Suspending += ref new SuspendingEventHandler(this, &App::OnSuspending);
  33 }
  34
  35 /// <summary>
  36 /// Invoked when the application is launched normally by the end user.  Other entry points
  37 /// will be used such as when the application is launched to open a specific file.
  38 /// </summary>
  39 /// <param name="e">Details about the launch request and process.</param>
  40 void App::OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ e)
  41 {
  42
  43 #if _DEBUG
  44                 // Show graphics profiling information while debugging.
  45                 if (IsDebuggerPresent())
  46                 {
  47                         // Display the current frame rate counters
  48                          DebugSettings->EnableFrameRateCounter = true;
  49                 }
  50 #endif
  51
  52         auto rootFrame = dynamic_cast<Frame^>(Window::Current->Content);
  53
  54         // Do not repeat app initialization when the Window already has content,
  55         // just ensure that the window is active
  56         if (rootFrame == nullptr)
  57         {
  58                 // Create a Frame to act as the navigation context and associate it with
  59                 // a SuspensionManager key
  60                 rootFrame = ref new Frame();
  61
  62                 rootFrame->NavigationFailed += ref new Windows::UI::Xaml::Navigation::NavigationFailedEventHandler(this, &App::OnNavigationFailed);
  63
  64                 if (e->PreviousExecutionState == ApplicationExecutionState::Terminated)
  65                 {
  66                         // TODO: Restore the saved session state only when appropriate, scheduling the
  67                         // final launch steps after the restore is complete
  68
  69                 }
  70
  71                 if (rootFrame->Content == nullptr)
  72                 {
  73                         // When the navigation stack isn't restored navigate to the first page,
  74                         // configuring the new page by passing required information as a navigation
  75                         // parameter
  76                         rootFrame->Navigate(TypeName(MainPage::typeid), e->Arguments);
  77                 }
  78                 // Place the frame in the current Window
  79                 Window::Current->Content = rootFrame;
  80                 // Ensure the current window is active
  81                 Window::Current->Activate();
  82         }
  83         else
  84         {
  85                 if (rootFrame->Content == nullptr)
  86                 {
  87                         // When the navigation stack isn't restored navigate to the first page,
  88                         // configuring the new page by passing required information as a navigation
  89                         // parameter
  90                         rootFrame->Navigate(TypeName(MainPage::typeid), e->Arguments);
  91                 }
  92                 // Ensure the current window is active
  93                 Window::Current->Activate();
  94         }
  95 }
  96
  97 /// <summary>
  98 /// Invoked when application execution is being suspended.      Application state is saved
  99 /// without knowing whether the application will be terminated or resumed with the contents
 100 /// of memory still intact.
 101 /// </summary>
 102 /// <param name="sender">The source of the suspend request.</param>
 103 /// <param name="e">Details about the suspend request.</param>
 104 void App::OnSuspending(Object^ sender, SuspendingEventArgs^ e)
 105 {
 106         (void) sender;  // Unused parameter
 107         (void) e;       // Unused parameter
 108
 109         //TODO: Save application state and stop any background activity
 110 }
 111
 112 /// <summary>
 113 /// Invoked when Navigation to a certain page fails
 114 /// </summary>
 115 /// <param name="sender">The Frame which failed navigation</param>
 116 /// <param name="e">Details about the navigation failure</param>
 117 void App::OnNavigationFailed(Platform::Object ^sender, Windows::UI::Xaml::Navigation::NavigationFailedEventArgs ^e)
 118 {
 119         throw ref new FailureException("Failed to load Page " + e->SourcePageType.Name);
 120 }