pituicat/src/Affection/Subsystems/AffectionWindow.hs
2017-11-27 23:30:11 +01:00

85 lines
3.5 KiB
Haskell

{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE AllowAmbiguousTypes #-}
module Affection.Subsystems.AffectionWindow where
import Affection.MessageBus
import Affection.Subsystems.Class
import Affection.Types
import Control.Monad.State.Class (get)
import Control.Monad.IO.Class (liftIO)
import qualified SDL
data AffectionWindow msg = AffectionWindow
{ windowChannel :: Channel msg
}
instance Participant (AffectionWindow (SystemMessage m)) (SystemMessage m) where
partChannel = windowChannel
partInit = do
ad <- get
nchan <- liftIO $ dupChannel $ messageChannel ad
return $ AffectionWindow
{ windowChannel = nchan
}
partListen p = do
let chan = partChannel p
mmsg <- tryPeekChannel chan
return mmsg
partEmit p m = do
let chan = partChannel p
writeChannel chan m
instance Subsystem (AffectionWindow (SystemMessage m)) (SystemMessage m) where
consumeEvents aw evs = doConsume evs
where
doConsume (e:es) = case SDL.eventPayload e of
SDL.WindowShownEvent (SDL.WindowShownEventData window) -> do
partEmit aw (MsgWindowShown (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowHiddenEvent (SDL.WindowHiddenEventData window) -> do
partEmit aw (MsgWindowHidden (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowExposedEvent (SDL.WindowExposedEventData window) -> do
partEmit aw (MsgWindowExposed (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowMovedEvent (SDL.WindowMovedEventData window (SDL.P newPos)) -> do
partEmit aw (MsgWindowMoved (SDL.eventTimestamp e) window newPos)
doConsume es
SDL.WindowResizedEvent (SDL.WindowResizedEventData window newSize) -> do
partEmit aw (MsgWindowResized (SDL.eventTimestamp e) window newSize)
doConsume es
SDL.WindowSizeChangedEvent (SDL.WindowSizeChangedEventData window) -> do
partEmit aw (MsgWindowSizeChanged (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowMinimizedEvent (SDL.WindowMinimizedEventData window) -> do
partEmit aw (MsgWindowMinimized (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowMaximizedEvent (SDL.WindowMaximizedEventData window) -> do
partEmit aw (MsgWindowMaximized (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowRestoredEvent (SDL.WindowRestoredEventData window) -> do
partEmit aw (MsgWindowRestored (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowGainedMouseFocusEvent (SDL.WindowGainedMouseFocusEventData window) -> do
partEmit aw (MsgWindowGainedMouseFocus (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowLostMouseFocusEvent (SDL.WindowLostMouseFocusEventData window) -> do
partEmit aw (MsgWindowLostMouseFocus (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowGainedKeyboardFocusEvent (SDL.WindowGainedKeyboardFocusEventData window) -> do
partEmit aw (MsgWindowGainedKeyboardFocus (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowLostKeyboardFocusEvent (SDL.WindowLostKeyboardFocusEventData window) -> do
partEmit aw (MsgWindowLostKeyboardFocus (SDL.eventTimestamp e) window)
doConsume es
SDL.WindowClosedEvent (SDL.WindowClosedEventData window) -> do
partEmit aw (MsgWindowClosed (SDL.eventTimestamp e) window)
doConsume es
_ -> fmap (e :) (doConsume es)