1 files changed, 27 insertions, 0 deletions
diff --git a/Types/UI.hs b/Types/UI.hs
new file mode 100644
index 0000000..553c323
--- /dev/null
+++ b/Types/UI.hs
@@ -0,0 +1,27 @@
+{- Copyright 2016 Joey Hess <id@joeyh.name>
+ -
+ - Licensed under the GNU AGPL version 3 or higher.
+ -}
+
+{-# LANGUAGE RankNTypes #-}
+
+module Types.UI where
+
+import Types
+
+data UI = UI
+	{ isAvailable :: IO Bool
+	, showError :: Desc -> IO ()
+	, showInfo :: Title -> Desc -> IO ()
+	, promptQuestion :: Title -> Desc -> Question -> IO Bool
+	, promptName :: Title -> Desc -> Maybe Name -> (Name -> Maybe Problem) -> IO (Maybe Name)
+	, promptPassword :: Bool -> Title -> Desc -> IO (Maybe Password)
+	, promptKeyId :: Title -> Desc -> [(Name, KeyId)] -> IO (Maybe KeyId)
+	, withProgress :: forall a. Title -> Desc -> ((Percent -> IO ()) -> IO a) -> IO a
+	}
+
+type Title = String
+type Desc = String
+type Percent = Int
+type Problem = String
+type Question = String