Fixed UWP controller to also run when in the background (ICE-8305)

3 files changed, 36 insertions, 4 deletions

diff --git a/cpp/test/uwp/controller/App.xaml.cpp b/cpp/test/uwp/controller/App.xaml.cpp
index ea67c113cc6..dfb97c7000d 100644
--- a/cpp/test/uwp/controller/App.xaml.cpp
+++ b/cpp/test/uwp/controller/App.xaml.cpp
@@ -9,6 +9,7 @@
 
 #include "pch.h"
 #include "ViewController.xaml.h"
+#include <ppltasks.h>
 
 using namespace Controller;
 
@@ -25,6 +26,7 @@ using namespace Windows::UI::Xaml::Input;
 using namespace Windows::UI::Xaml::Interop;
 using namespace Windows::UI::Xaml::Media;
 using namespace Windows::UI::Xaml::Navigation;
+using namespace Windows::ApplicationModel::ExtendedExecution::Foreground;
 
 // The Blank Application template is documented at http://go.microsoft.com/fwlink/?LinkId=234227
 
@@ -48,20 +50,20 @@ void App::OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEvent
 {
     // Do not repeat app initialization when already running, just ensure that
     // the window is active
-    if (pArgs->PreviousExecutionState == ApplicationExecutionState::Running)
+    if(pArgs->PreviousExecutionState == ApplicationExecutionState::Running)
     {
         Window::Current->Activate();
         return;
     }
 
-    if (pArgs->PreviousExecutionState == ApplicationExecutionState::Terminated)
+    if(pArgs->PreviousExecutionState == ApplicationExecutionState::Terminated)
     {
         //TODO: Load state from previously suspended application
     }
 
     // Create a Frame to act navigation context and navigate to the first page
     auto rootFrame = ref new Frame();
-    if (!rootFrame->Navigate(TypeName(ViewController::typeid)))
+    if(!rootFrame->Navigate(TypeName(ViewController::typeid)))
     {
         throw ref new FailureException("Failed to create initial page");
     }
@@ -69,6 +71,32 @@ void App::OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEvent
     // Place the frame in the current Window and ensure that it is active
     Window::Current->Content = rootFrame;
     Window::Current->Activate();
+
+    if(!_session)
+    {
+        ExtendedExecutionForegroundSession^ session = ref new ExtendedExecutionForegroundSession();
+        session->Reason = ExtendedExecutionForegroundReason::Unconstrained;
+        session->Revoked += ref new TypedEventHandler<Object^, ExtendedExecutionForegroundRevokedEventArgs^>(this, &App::SessionRevoked);
+        concurrency::create_task(session->RequestExtensionAsync()).then([this, session](ExtendedExecutionForegroundResult result)
+        {
+            switch(result)
+            {
+                case ExtendedExecutionForegroundResult::Allowed:
+                    _session = session;
+                    break;
+                case ExtendedExecutionForegroundResult::Denied:
+                    break;
+            }
+        });
+    }
+}
+
+void App::SessionRevoked(Object^ sender, ExtendedExecutionForegroundRevokedEventArgs^ args)
+{
+    if(_session != nullptr)
+    {
+        _session = nullptr;
+    }
 }
 
 /// <summary>
diff --git a/cpp/test/uwp/controller/App.xaml.h b/cpp/test/uwp/controller/App.xaml.h
index 354d2726504..2305d464a81 100644
--- a/cpp/test/uwp/controller/App.xaml.h
+++ b/cpp/test/uwp/controller/App.xaml.h
@@ -24,5 +24,7 @@ public:
 
 private:
     void OnSuspending(Platform::Object^ sender, Windows::ApplicationModel::SuspendingEventArgs^ e);
+	void SessionRevoked(Platform::Object^, Windows::ApplicationModel::ExtendedExecution::Foreground::ExtendedExecutionForegroundRevokedEventArgs^);
+    Windows::ApplicationModel::ExtendedExecution::Foreground::ExtendedExecutionForegroundSession^ _session;
 };
 }
diff --git a/cpp/test/uwp/controller/Package.appxmanifest b/cpp/test/uwp/controller/Package.appxmanifest
index e5a1aa1d6f5..85f47d15719 100644
--- a/cpp/test/uwp/controller/Package.appxmanifest
+++ b/cpp/test/uwp/controller/Package.appxmanifest
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" IgnorableNamespaces="uap mp">
+<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities" IgnorableNamespaces="uap mp rescap">
   <Identity Name="ice-uwp-controller" Publisher="CN=ZeroC" Version="1.0.0.0" />
   <mp:PhoneIdentity PhoneProductId="f4c6cdff-3ef9-43fb-8094-d50c547e70f6" PhonePublisherId="00000000-0000-0000-0000-000000000000" />
   <Properties>
@@ -26,6 +26,8 @@
     <Capability Name="internetClientServer" />
     <Capability Name="internetClient" />
     <Capability Name="privateNetworkClientServer" />
+	<rescap:Capability Name="extendedBackgroundTaskTime" />
+	<rescap:Capability Name="extendedExecutionUnconstrained" />
   </Capabilities>
   <Extensions>
     <Extension Category="windows.certificates">