port from perforce

intromat/Intromat/AkavacheSuspensionDriver.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Reactive;
+using Akavache;
+using ReactiveUI;
+
+namespace Intromat
+{
+    public class AkavacheSuspensionDriver<TAppState> : ISuspensionDriver where TAppState : class
+    {
+        private const string AppStateKey = "appState";
+
+        public AkavacheSuspensionDriver()
+        {
+            BlobCache.ApplicationName = "Your Application Name";
+        }
+
+        public IObservable<Unit> InvalidateState()
+        {
+            return BlobCache.UserAccount.InvalidateObject<TAppState>(AppStateKey);
+        }
+
+        public IObservable<object> LoadState()
+        {
+            return BlobCache.UserAccount.GetObject<TAppState>(AppStateKey)!;
+        }
+
+        public IObservable<Unit> SaveState(object state)
+        {
+            return BlobCache.UserAccount.InsertObject(AppStateKey, (TAppState)state);
+        }
+    }
+}