{-# LANGUAGE MultiParamTypeClasses #-} module Affection.Subsystems.AffectionWindow where import Affection.Types import Affection.MessageBus import Affection.Subsystems.Class import Control.Concurrent.STM as STM import Control.Monad.IO.Class (liftIO) import qualified SDL data AffectionWindow sd = AffectionWindow { windowSubscribers :: TVar [(UUID, WindowMessage -> Affection sd ())] } instance Participant AffectionWindow WindowMessage where partSubscribe p funct = do uuid <- genUUID liftIO $ atomically $ modifyTVar' (windowSubscribers p) ((uuid, funct) :) return uuid partUnSubscribe p uuid = liftIO $ atomically $ modifyTVar' (windowSubscribers p) (filter (\(u, _) -> u /= uuid)) partSubscribers p = do subTups <- liftIO $ readTVarIO $ windowSubscribers p return $ map snd subTups instance SDLSubsystem AffectionWindow WindowMessage where consumeSDLEvents aw evs = doConsume evs where doConsume [] = return [] doConsume (e:es) = case SDL.eventPayload e of SDL.WindowShownEvent (SDL.WindowShownEventData window) -> do partEmit aw (MsgWindowShow (SDL.eventTimestamp e) window) doConsume es SDL.WindowHiddenEvent (SDL.WindowHiddenEventData window) -> do partEmit aw (MsgWindowHide (SDL.eventTimestamp e) window) doConsume es SDL.WindowExposedEvent (SDL.WindowExposedEventData window) -> do partEmit aw (MsgWindowExpose (SDL.eventTimestamp e) window) doConsume es SDL.WindowMovedEvent (SDL.WindowMovedEventData window (SDL.P newPos)) -> do partEmit aw (MsgWindowMove (SDL.eventTimestamp e) window newPos) doConsume es SDL.WindowResizedEvent (SDL.WindowResizedEventData window newSize) -> do partEmit aw (MsgWindowResize (SDL.eventTimestamp e) window newSize) doConsume es SDL.WindowSizeChangedEvent (SDL.WindowSizeChangedEventData window) -> do partEmit aw (MsgWindowSizeChange (SDL.eventTimestamp e) window) doConsume es SDL.WindowMinimizedEvent (SDL.WindowMinimizedEventData window) -> do partEmit aw (MsgWindowMinimize (SDL.eventTimestamp e) window) doConsume es SDL.WindowMaximizedEvent (SDL.WindowMaximizedEventData window) -> do partEmit aw (MsgWindowMaximize (SDL.eventTimestamp e) window) doConsume es SDL.WindowRestoredEvent (SDL.WindowRestoredEventData window) -> do partEmit aw (MsgWindowRestore (SDL.eventTimestamp e) window) doConsume es SDL.WindowGainedMouseFocusEvent (SDL.WindowGainedMouseFocusEventData window) -> do partEmit aw (MsgWindowGainMouseFocus (SDL.eventTimestamp e) window) doConsume es SDL.WindowLostMouseFocusEvent (SDL.WindowLostMouseFocusEventData window) -> do partEmit aw (MsgWindowLoseMouseFocus (SDL.eventTimestamp e) window) doConsume es SDL.WindowGainedKeyboardFocusEvent (SDL.WindowGainedKeyboardFocusEventData window) -> do partEmit aw (MsgWindowGainKeyboardFocus (SDL.eventTimestamp e) window) doConsume es SDL.WindowLostKeyboardFocusEvent (SDL.WindowLostKeyboardFocusEventData window) -> do partEmit aw (MsgWindowLoseKeyboardFocus (SDL.eventTimestamp e) window) doConsume es SDL.WindowClosedEvent (SDL.WindowClosedEventData window) -> do partEmit aw (MsgWindowClose (SDL.eventTimestamp e) window) doConsume es _ -> fmap (e :) (doConsume es)