pituicat/src/Affection/Subsystems/AffectionWindow.hs
2017-12-13 05:05:18 +01:00

80 lines
3.5 KiB
Haskell

{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE RankNTypes #-}
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 :: forall sd. TVar [(UUID, WindowMessage -> Affection sd ())]
}
instance Participant (AffectionWindow sd) 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 sd) 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)