module Engine.Window.Scroll ( Callback , callback , mkCallback ) where import RIO import Graphics.UI.GLFW qualified as GLFW import RIO.App (appEnv) import UnliftIO.Resource (ReleaseKey) import UnliftIO.Resource qualified as Resource import Engine.Types (GlobalHandles(..), StageRIO) type Callback st = Double -> Double -> StageRIO st () callback :: Callback st -> StageRIO st ReleaseKey callback :: forall st. Callback st -> StageRIO st ReleaseKey callback Callback st handler = do Window window <- forall r (m :: * -> *) a. MonadReader r m => (r -> a) -> m a asks forall a b. (a -> b) -> a -> b $ GlobalHandles -> Window ghWindow forall b c a. (b -> c) -> (a -> b) -> a -> c . forall env st. App env st -> env appEnv forall (m :: * -> *) a. MonadUnliftIO m => (UnliftIO m -> IO a) -> m a withUnliftIO \UnliftIO (RIO (App GlobalHandles st)) ul -> Window -> Maybe ScrollCallback -> IO () GLFW.setScrollCallback Window window forall b c a. (b -> c) -> (a -> b) -> a -> c . forall a. a -> Maybe a Just forall a b. (a -> b) -> a -> b $ forall st. UnliftIO (StageRIO st) -> Callback st -> ScrollCallback mkCallback UnliftIO (RIO (App GlobalHandles st)) ul Callback st handler forall (m :: * -> *). MonadResource m => IO () -> m ReleaseKey Resource.register forall a b. (a -> b) -> a -> b $ Window -> Maybe ScrollCallback -> IO () GLFW.setScrollCallback Window window forall a. Maybe a Nothing mkCallback :: UnliftIO (StageRIO st) -> Callback st -> GLFW.ScrollCallback mkCallback :: forall st. UnliftIO (StageRIO st) -> Callback st -> ScrollCallback mkCallback (UnliftIO forall a. StageRIO st a -> IO a ul) Callback st action = \Window _window Double dx Double dy -> forall a. StageRIO st a -> IO a ul forall a b. (a -> b) -> a -> b $ Callback st action Double dx Double dy