1 files changed, 63 insertions, 0 deletions

diff --git a/Rx/NET/Source/System.Reactive.PlatformServices/Reactive/Internal/HostLifecycleNotifications.WindowsPhone.cs b/Rx/NET/Source/System.Reactive.PlatformServices/Reactive/Internal/HostLifecycleNotifications.WindowsPhone.cs
new file mode 100644
index 0000000..30a32e7
--- /dev/null
+++ b/Rx/NET/Source/System.Reactive.PlatformServices/Reactive/Internal/HostLifecycleNotifications.WindowsPhone.cs
@@ -0,0 +1,63 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+#if WINDOWSPHONE7
+
+#if DEBUG_NO_AGENT_SUPPORT
+using Microsoft.Phone.Shell;
+#else
+using System.Reactive.PlatformServices.Phone.Shell;
+#endif
+
+namespace System.Reactive.PlatformServices
+{
+    internal class HostLifecycleNotifications : IHostLifecycleNotifications
+    {
+        private EventHandler<ActivatedEventArgs> _activated;
+        private EventHandler<DeactivatedEventArgs> _deactivated;
+
+        public event EventHandler<HostSuspendingEventArgs> Suspending
+        {
+            add
+            {
+                _deactivated = (o, e) => value(o, new HostSuspendingEventArgs());
+
+                var current = PhoneApplicationService.Current;
+                if (current != null)
+                    current.Deactivated += _deactivated;
+            }
+
+            remove
+            {
+                var current = PhoneApplicationService.Current;
+                if (current != null)
+                    current.Deactivated -= _deactivated;
+            }
+        }
+
+        public event EventHandler<HostResumingEventArgs> Resuming
+        {
+            add
+            {
+                _activated = (o, e) =>
+                {
+                    if (e.IsApplicationInstancePreserved)
+                    {
+                        value(o, new HostResumingEventArgs());
+                    }
+                };
+
+                var current = PhoneApplicationService.Current;
+                if (current != null)
+                    current.Activated += _activated;
+            }
+
+            remove
+            {
+                var current = PhoneApplicationService.Current;
+                if (current != null)
+                    current.Activated -= _activated;
+            }
+        }
+    }
+}
+#endif
\ No newline at end of file