ENH use busname when matching signal
This commit is contained in:
parent
b9ede93e98
commit
9e4589cc98
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@ -4,10 +4,11 @@
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module DBus.Internal
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( addMatchCallback
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, getDBusClient
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, fromDBusClient
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, withDBusClient
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, withDBusClient_
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, matchProperty
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, matchProperty'
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, matchPropertyFull
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, matchPropertyChanged
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, SignalMatch(..)
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, SignalCallback
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@ -16,12 +17,15 @@ module DBus.Internal
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, callPropertyGet
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, callMethod
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, callMethod'
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, methodCallBus
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, callGetManagedObjects
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, ObjectTree
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, getManagedObjects
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, omInterface
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, addInterfaceAddedListener
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, addInterfaceRemovedListener
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, fromSingletonVariant
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, bodyToMaybe
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) where
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import Control.Exception
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@ -44,9 +48,33 @@ callMethod' cl = fmap (bimap methodErrorMessage methodReturnBody) . call cl
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callMethod :: Client -> BusName -> ObjectPath -> InterfaceName -> MemberName
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-> IO MethodBody
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callMethod client bus path iface mem =
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callMethod' client (methodCall path iface mem)
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{ methodCallDestination = Just bus }
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callMethod client bus path iface = callMethod' client . methodCallBus bus path iface
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methodCallBus :: BusName -> ObjectPath -> InterfaceName -> MemberName -> MethodCall
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methodCallBus b p i m = (methodCall p i m)
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{ methodCallDestination = Just b }
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--------------------------------------------------------------------------------
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-- | Bus names
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dbusInterface :: InterfaceName
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dbusInterface = interfaceName_ "org.freedesktop.DBus"
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callGetNameOwner :: Client -> BusName -> IO (Maybe BusName)
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callGetNameOwner client name = bodyToMaybe <$> callMethod' client mc
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where
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mc = (methodCallBus dbusName dbusPath dbusInterface mem)
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{ methodCallBody = [toVariant name] }
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mem = memberName_ "GetNameOwner"
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--------------------------------------------------------------------------------
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-- | Variant parsing
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fromSingletonVariant :: IsVariant a => [Variant] -> Maybe a
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fromSingletonVariant = fromVariant <=< listToMaybe
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bodyToMaybe :: IsVariant a => MethodBody -> Maybe a
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bodyToMaybe = either (const Nothing) fromSingletonVariant
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--------------------------------------------------------------------------------
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-- | Signals
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@ -56,6 +84,20 @@ type SignalCallback = [Variant] -> IO ()
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addMatchCallback :: MatchRule -> SignalCallback -> Client -> IO SignalHandler
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addMatchCallback rule cb client = addMatch client rule $ cb . signalBody
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matchSignal :: Maybe BusName -> Maybe ObjectPath -> Maybe InterfaceName
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-> Maybe MemberName -> MatchRule
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matchSignal b p i m = matchAny
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{ matchPath = p
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, matchSender = b
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, matchInterface = i
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, matchMember = m
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}
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matchSignalFull :: Client -> BusName -> Maybe ObjectPath -> Maybe InterfaceName
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-> Maybe MemberName -> IO (Maybe MatchRule)
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matchSignalFull client b p i m =
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fmap (\o -> matchSignal (Just o) p i m) <$> callGetNameOwner client b
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--------------------------------------------------------------------------------
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-- | Properties
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@ -65,26 +107,18 @@ propertyInterface = interfaceName_ "org.freedesktop.DBus.Properties"
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propertySignal :: MemberName
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propertySignal = memberName_ "PropertiesChanged"
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callPropertyGet :: BusName -> ObjectPath -> InterfaceName -> String -> Client
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callPropertyGet :: BusName -> ObjectPath -> InterfaceName -> MemberName -> Client
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-> IO [Variant]
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callPropertyGet bus path iface property client = either (const []) (:[])
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<$> getProperty client (methodCall path iface $ memberName_ property)
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{ methodCallDestination = Just bus }
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callPropertyGet bus path iface property client = fmap (either (const []) (:[]))
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$ getProperty client $ methodCallBus bus path iface property
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-- TODO actually get the real busname when using this (will involve IO)
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matchProperty' :: Maybe ObjectPath -> MatchRule
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matchProperty' p = matchAny
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-- NOTE: the sender for signals is usually the unique name (eg :X.Y) not the
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-- requested name (eg "org.something.understandable"). If sender is included
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-- here, likely nothing will match. Solution is to somehow get the unique
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-- name, which I could do, but probably won't
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{ matchPath = p
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, matchInterface = Just propertyInterface
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, matchMember = Just propertySignal
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}
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matchProperty :: Maybe BusName -> Maybe ObjectPath -> MatchRule
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matchProperty b p =
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matchSignal b p (Just propertyInterface) (Just propertySignal)
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matchProperty :: ObjectPath -> MatchRule
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matchProperty = matchProperty' . Just
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matchPropertyFull :: Client -> BusName -> Maybe ObjectPath -> IO (Maybe MatchRule)
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matchPropertyFull client b p =
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matchSignalFull client b p (Just propertyInterface) (Just propertySignal)
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data SignalMatch a = Match a | NoMatch | Failure deriving (Eq, Show)
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@ -117,18 +151,19 @@ getDBusClient sys = do
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Left e -> putStrLn (clientErrorMessage e) >> return Nothing
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Right c -> return $ Just c
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withDBusClient :: Bool -> (Client -> a) -> IO (Maybe a)
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withDBusClient :: Bool -> (Client -> IO a) -> IO (Maybe a)
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withDBusClient sys f = do
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client <- getDBusClient sys
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let r = f <$> client
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mapM_ disconnect client
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return r
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forM client $ \c -> do
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r <- f c
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disconnect c
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return r
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withDBusClient_ :: Bool -> (Client -> IO ()) -> IO ()
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withDBusClient_ sys f = do
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client <- getDBusClient sys
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mapM_ f client
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mapM_ disconnect client
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withDBusClient_ sys = void . withDBusClient sys
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fromDBusClient :: Bool -> (Client -> a) -> IO (Maybe a)
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fromDBusClient sys f = withDBusClient sys (return . f)
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--------------------------------------------------------------------------------
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-- | Object Manager
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@ -141,30 +176,29 @@ omInterface = interfaceName_ "org.freedesktop.DBus.ObjectManager"
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getManagedObjects :: MemberName
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getManagedObjects = memberName_ "GetManagedObjects"
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callGetManagedObjects :: Client -> BusName -> ObjectPath -> IO ObjectTree
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callGetManagedObjects client bus path =
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either (const M.empty) (fromMaybe M.empty . (fromVariant <=< listToMaybe))
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<$> callMethod client bus path omInterface getManagedObjects
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omInterfacesAdded :: MemberName
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omInterfacesAdded = memberName_ "InterfacesAdded"
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omInterfacesRemoved :: MemberName
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omInterfacesRemoved = memberName_ "InterfacesRemoved"
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-- TODO add busname back to this (use NameGetOwner on org.freedesktop.DBus)
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addInterfaceChangedListener :: MemberName -> ObjectPath -> SignalCallback
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-> Client -> IO ()
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addInterfaceChangedListener prop path = fmap void . addMatchCallback rule
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where
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rule = matchAny
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{ matchPath = Just path
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, matchInterface = Just omInterface
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, matchMember = Just prop
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}
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callGetManagedObjects :: Client -> BusName -> ObjectPath -> IO ObjectTree
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callGetManagedObjects client bus path =
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either (const M.empty) (fromMaybe M.empty . fromSingletonVariant)
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<$> callMethod client bus path omInterface getManagedObjects
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addInterfaceAddedListener :: ObjectPath -> SignalCallback -> Client -> IO ()
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addInterfaceAddedListener = addInterfaceChangedListener omInterfacesAdded
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addInterfaceChangedListener :: BusName -> MemberName -> ObjectPath
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-> SignalCallback -> Client -> IO (Maybe SignalHandler)
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addInterfaceChangedListener bus prop path sc client = do
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rule <- matchSignalFull client bus (Just path) (Just omInterface) (Just prop)
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forM rule $ \r -> addMatchCallback r sc client
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addInterfaceRemovedListener :: ObjectPath -> SignalCallback -> Client -> IO ()
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addInterfaceRemovedListener = addInterfaceChangedListener omInterfacesRemoved
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addInterfaceAddedListener :: BusName -> ObjectPath -> SignalCallback -> Client
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-> IO (Maybe SignalHandler)
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addInterfaceAddedListener bus =
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addInterfaceChangedListener bus omInterfacesAdded
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addInterfaceRemovedListener :: BusName -> ObjectPath -> SignalCallback -> Client
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-> IO (Maybe SignalHandler)
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addInterfaceRemovedListener bus =
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addInterfaceChangedListener bus omInterfacesRemoved
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@ -62,11 +62,10 @@ brightnessControls bc client =
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where
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cb = callBacklight client bc
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-- TODO not dry
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callGetBrightness :: Num c => BrightnessConfig a b -> Client -> IO (Maybe c)
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callGetBrightness BrightnessConfig { bcPath = p, bcInterface = i } client = do
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reply <- callMethod client xmonadBusName p i memGet
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return $ either (const Nothing) bodyGetBrightness reply
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callGetBrightness BrightnessConfig { bcPath = p, bcInterface = i } client =
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either (const Nothing) bodyGetBrightness
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<$> callMethod client xmonadBusName p i memGet
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signalDep :: BrightnessConfig a b -> DBusDep
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signalDep BrightnessConfig { bcPath = p, bcInterface = i } =
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@ -76,6 +75,7 @@ matchSignal :: Num c => BrightnessConfig a b -> (Maybe c -> IO ()) -> Client ->
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matchSignal BrightnessConfig { bcPath = p, bcInterface = i } cb =
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void . addMatchCallback brMatcher (cb . bodyGetBrightness)
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where
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-- TODO add busname to this
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brMatcher = matchAny
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{ matchPath = Just p
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, matchInterface = Just i
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@ -128,7 +128,8 @@ emitBrightness BrightnessConfig{ bcPath = p, bcInterface = i } client cur =
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where
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sig = signal p i memCur
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callBacklight :: Maybe Client -> BrightnessConfig a b -> String -> MemberName -> FeatureIO
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callBacklight :: Maybe Client -> BrightnessConfig a b -> String -> MemberName
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-> FeatureIO
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callBacklight client BrightnessConfig { bcPath = p
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, bcInterface = i
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, bcName = n } controlName m =
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@ -11,11 +11,11 @@ import DBus.Client
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import Xmobar.Plugins.Common
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startBacklight :: RealFrac a => ((Maybe a -> IO ()) -> Client -> IO ())
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-> (Client -> IO (Maybe a)) -> String -> (String -> IO ()) -> IO ()
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-> (Client -> IO (Maybe a)) -> String -> Callback -> IO ()
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startBacklight matchSignal callGetBrightness icon cb = do
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withDBusClientConnection False cb $ \c -> do
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matchSignal (cb . formatBrightness) c
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cb . formatBrightness =<< callGetBrightness c
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matchSignal display c
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display =<< callGetBrightness c
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where
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formatBrightness = maybe na $
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\b -> icon ++ show (round b :: Integer) ++ "%"
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formatBrightness b = return $ icon ++ show (round b :: Integer) ++ "%"
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display = displayMaybe cb formatBrightness
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@ -56,7 +56,7 @@ btAlias :: String
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btAlias = "bluetooth"
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btDep :: DBusDep
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btDep = Endpoint btBus btOmPath omInterface $ Method_ getManagedObjects
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btDep = Endpoint btBus btOMPath omInterface $ Method_ getManagedObjects
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data Bluetooth = Bluetooth Icons Colors deriving (Read, Show)
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@ -73,7 +73,8 @@ startAdapter is cs cb cl = do
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forM_ (findAdapter ot) $ \adapter -> do
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-- set up adapter
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initAdapter state adapter cl
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addAdaptorListener state display adapter cl
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-- TODO this step could fail; at least warn the user...
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void $ addAdaptorListener state display adapter cl
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-- set up devices on the adapter (and listeners for adding/removing devices)
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let devices = findDevices adapter ot
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addDeviceAddedListener state display adapter cl
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@ -157,24 +158,27 @@ splitPath :: ObjectPath -> [String]
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splitPath = splitOn "/" . dropWhile (=='/') . formatObjectPath
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getBtObjectTree :: Client -> IO ObjectTree
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getBtObjectTree client = callGetManagedObjects client btBus btOmPath
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getBtObjectTree client = callGetManagedObjects client btBus btOMPath
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btBus :: BusName
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btBus = busName_ "org.bluez"
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btOmPath :: ObjectPath
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btOmPath = objectPath_ "/"
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btOMPath :: ObjectPath
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btOMPath = objectPath_ "/"
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addBtOMListener :: SignalCallback -> Client -> IO ()
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addBtOMListener sc = void . addInterfaceAddedListener btBus btOMPath sc
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addDeviceAddedListener :: MutableBtState -> IO () -> ObjectPath -> Client -> IO ()
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addDeviceAddedListener state display adapter client =
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addInterfaceAddedListener btOmPath addDevice client
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addBtOMListener addDevice client
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where
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addDevice = pathCallback adapter display $ \d ->
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addAndInitDevice state display d client
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addDeviceRemovedListener :: MutableBtState -> IO () -> ObjectPath -> Client -> IO ()
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addDeviceRemovedListener state display adapter client =
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addInterfaceRemovedListener btOmPath remDevice client
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addBtOMListener remDevice client
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where
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remDevice = pathCallback adapter display $ \d -> do
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old <- removeDevice state d
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@ -193,16 +197,20 @@ initAdapter state adapter client = do
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reply <- callGetPowered adapter client
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putPowered state $ fromSingletonVariant reply
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addAdaptorListener :: MutableBtState -> IO () -> ObjectPath -> Client -> IO ()
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addAdaptorListener state display adaptor =
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void . addMatchCallback rule (procMatch . matchPowered)
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matchBTProperty :: Client -> ObjectPath -> IO (Maybe MatchRule)
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matchBTProperty client p = matchPropertyFull client btBus (Just p)
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addAdaptorListener :: MutableBtState -> IO () -> ObjectPath -> Client
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-> IO (Maybe SignalHandler)
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addAdaptorListener state display adaptor client = do
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rule <- matchBTProperty client adaptor
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forM rule $ \r -> addMatchCallback r (procMatch . matchPowered) client
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where
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rule = matchProperty adaptor
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procMatch = withSignalMatch $ \b -> putPowered state b >> display
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callGetPowered :: ObjectPath -> Client -> IO [Variant]
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callGetPowered adapter =
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callPropertyGet btBus adapter adapterInterface adaptorPowered
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callPropertyGet btBus adapter adapterInterface $ memberName_ adaptorPowered
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matchPowered :: [Variant] -> SignalMatch Bool
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matchPowered = matchPropertyChanged adapterInterface adaptorPowered
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@ -225,7 +233,8 @@ adaptorPowered = "Powered"
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addAndInitDevice :: MutableBtState -> IO () -> ObjectPath -> Client -> IO ()
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addAndInitDevice state display device client = do
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sh <- addDeviceListener state display device client
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initDevice state sh device client
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-- TODO add some intelligent error messages here
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forM_ sh $ \s -> initDevice state s device client
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initDevice :: MutableBtState -> SignalHandler -> ObjectPath -> Client -> IO ()
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initDevice state sh device client = do
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@ -235,18 +244,19 @@ initDevice state sh device client = do
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, btDevSigHandler = sh
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}
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addDeviceListener :: MutableBtState -> IO () -> ObjectPath -> Client -> IO SignalHandler
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addDeviceListener state display device =
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addMatchCallback rule (procMatch . matchConnected)
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addDeviceListener :: MutableBtState -> IO () -> ObjectPath -> Client
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-> IO (Maybe SignalHandler)
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addDeviceListener state display device client = do
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rule <- matchBTProperty client device
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forM rule $ \r -> addMatchCallback r (procMatch . matchConnected) client
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where
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rule = matchProperty device
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procMatch = withSignalMatch $ \c -> updateDevice state device c >> display
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matchConnected :: [Variant] -> SignalMatch Bool
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matchConnected = matchPropertyChanged devInterface devConnected
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callGetConnected :: ObjectPath -> Client -> IO [Variant]
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callGetConnected p = callPropertyGet btBus p devInterface devConnected
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callGetConnected p = callPropertyGet btBus p devInterface $ memberName_ devConnected
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insertDevice :: MutableBtState -> ObjectPath -> BTDevice -> IO Bool
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insertDevice m device dev = modifyMVar m $ \s -> do
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@ -22,5 +22,5 @@ ckAlias = "clevokeyboard"
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instance Exec ClevoKeyboard where
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alias (ClevoKeyboard _) = ckAlias
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start (ClevoKeyboard icon) cb = do
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startBacklight matchSignalCK callGetBrightnessCK icon cb
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start (ClevoKeyboard icon) =
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startBacklight matchSignalCK callGetBrightnessCK icon
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@ -7,6 +7,8 @@ module Xmobar.Plugins.Common
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, fromSingletonVariant
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, withDBusClientConnection
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, Callback
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, displayMaybe
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, displayMaybe'
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)
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where
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@ -16,8 +18,6 @@ import DBus
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import DBus.Client
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import DBus.Internal
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import Data.Maybe
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import XMonad.Hooks.DynamicLog (xmobarColor)
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type Callback = String -> IO ()
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@ -27,15 +27,13 @@ startListener :: IsVariant a => MatchRule -> (Client -> IO [Variant])
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-> Client -> IO ()
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startListener rule getProp fromSignal toColor cb client = do
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reply <- getProp client
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procMatch $ maybe Failure Match $ fromVariant =<< listToMaybe reply
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displayMaybe cb toColor $ fromSingletonVariant reply
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void $ addMatchCallback rule (procMatch . fromSignal) client
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where
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procMatch = procSignalMatch cb toColor
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procSignalMatch :: (String -> IO ()) -> (a -> IO String) -> SignalMatch a -> IO ()
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procSignalMatch callback formatter (Match x) = callback =<< formatter x
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procSignalMatch callback _ Failure = callback na
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procSignalMatch _ _ NoMatch = return ()
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procSignalMatch :: Callback -> (a -> IO String) -> SignalMatch a -> IO ()
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procSignalMatch cb f = withSignalMatch (displayMaybe cb f)
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chooseColor :: String -> String -> String -> Bool -> String
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chooseColor text colorOn colorOff state =
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@ -44,8 +42,11 @@ chooseColor text colorOn colorOff state =
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na :: String
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na = "N/A"
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fromSingletonVariant :: IsVariant a => [Variant] -> Maybe a
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fromSingletonVariant = fromVariant <=< listToMaybe
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displayMaybe :: Callback -> (a -> IO String) -> Maybe a -> IO ()
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displayMaybe cb f = cb <=< maybe (return na) f
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displayMaybe' :: Callback -> (a -> IO ()) -> Maybe a -> IO ()
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displayMaybe' cb = maybe (cb na)
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withDBusClientConnection :: Bool -> Callback -> (Client -> IO ()) -> IO ()
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withDBusClientConnection sys cb f = maybe (cb na) f =<< getDBusClient sys
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withDBusClientConnection sys cb f = displayMaybe' cb f =<< getDBusClient sys
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@ -11,7 +11,6 @@ module Xmobar.Plugins.Device
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import Control.Monad
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import Data.Maybe
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import Data.Word
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import DBus
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@ -46,16 +45,15 @@ devDep :: DBusDep
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devDep = Endpoint nmBus nmPath nmInterface $ Method_ getByIP
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getDevice :: Client -> String -> IO (Maybe ObjectPath)
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getDevice client iface = either (const Nothing) (fromVariant <=< listToMaybe)
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<$> callMethod' client mc
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getDevice client iface = bodyToMaybe <$> callMethod' client mc
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where
|
||||
mc = (methodCall nmPath nmInterface getByIP)
|
||||
mc = (methodCallBus nmBus nmPath nmInterface getByIP)
|
||||
{ methodCallBody = [toVariant iface]
|
||||
, methodCallDestination = Just nmBus
|
||||
}
|
||||
|
||||
getDeviceConnected :: ObjectPath -> Client -> IO [Variant]
|
||||
getDeviceConnected path = callPropertyGet nmBus path nmDeviceInterface devSignal
|
||||
getDeviceConnected path = callPropertyGet nmBus path nmDeviceInterface
|
||||
$ memberName_ devSignal
|
||||
|
||||
matchStatus :: [Variant] -> SignalMatch Word32
|
||||
matchStatus = matchPropertyChanged nmDeviceInterface devSignal
|
||||
|
|
@ -63,10 +61,13 @@ matchStatus = matchPropertyChanged nmDeviceInterface devSignal
|
|||
instance Exec Device where
|
||||
alias (Device (iface, _, _, _)) = iface
|
||||
start (Device (iface, text, colorOn, colorOff)) cb = do
|
||||
withDBusClientConnection True cb $ \c -> do
|
||||
path <- getDevice c iface
|
||||
maybe (cb na) (listener c) path
|
||||
withDBusClientConnection True cb $ \client -> do
|
||||
path <- getDevice client iface
|
||||
displayMaybe' cb (listener client) path
|
||||
where
|
||||
listener client path = startListener (matchProperty path)
|
||||
(getDeviceConnected path) matchStatus chooseColor' cb client
|
||||
listener client path = do
|
||||
rule <- matchPropertyFull client nmBus (Just path)
|
||||
-- TODO warn the user here rather than silently drop the listener
|
||||
forM_ rule $ \r ->
|
||||
startListener r (getDeviceConnected path) matchStatus chooseColor' cb client
|
||||
chooseColor' = return . chooseColor text colorOn colorOff . (> 1)
|
||||
|
|
|
|||
|
|
@ -22,5 +22,5 @@ blAlias = "intelbacklight"
|
|||
|
||||
instance Exec IntelBacklight where
|
||||
alias (IntelBacklight _) = blAlias
|
||||
start (IntelBacklight icon) cb =
|
||||
startBacklight matchSignalIB callGetBrightnessIB icon cb
|
||||
start (IntelBacklight icon) =
|
||||
startBacklight matchSignalIB callGetBrightnessIB icon
|
||||
|
|
|
|||
|
|
@ -23,8 +23,8 @@ instance Exec Screensaver where
|
|||
alias (Screensaver _) = ssAlias
|
||||
start (Screensaver (text, colorOn, colorOff)) cb = do
|
||||
withDBusClientConnection False cb $ \c -> do
|
||||
matchSignal (cb . fmtState) c
|
||||
cb . fmtState =<< callQuery c
|
||||
matchSignal display c
|
||||
display =<< callQuery c
|
||||
where
|
||||
fmtState = maybe na $ chooseColor text colorOn colorOff
|
||||
display = displayMaybe cb $ return . chooseColor text colorOn colorOff
|
||||
|
||||
|
|
|
|||
|
|
@ -9,6 +9,8 @@ module Xmobar.Plugins.VPN
|
|||
, vpnDep
|
||||
) where
|
||||
|
||||
import Control.Monad
|
||||
|
||||
import DBus
|
||||
import DBus.Internal
|
||||
|
||||
|
|
@ -39,10 +41,11 @@ vpnDep = Endpoint vpnBus vpnPath vpnInterface $ Property_ vpnConnType
|
|||
instance Exec VPN where
|
||||
alias (VPN _) = vpnAlias
|
||||
start (VPN (text, colorOn, colorOff)) cb =
|
||||
withDBusClientConnection True cb
|
||||
$ startListener rule getProp fromSignal chooseColor' cb
|
||||
withDBusClientConnection True cb $ \c -> do
|
||||
rule <- matchPropertyFull c vpnBus (Just vpnPath)
|
||||
-- TODO intelligently warn user
|
||||
forM_ rule $ \r -> startListener r getProp fromSignal chooseColor' cb c
|
||||
where
|
||||
rule = matchProperty vpnPath
|
||||
getProp = callPropertyGet vpnBus vpnPath vpnInterface vpnConnType
|
||||
getProp = callPropertyGet vpnBus vpnPath vpnInterface $ memberName_ vpnConnType
|
||||
fromSignal = matchPropertyChanged vpnInterface vpnConnType
|
||||
chooseColor' = return . chooseColor text colorOn colorOff . ("vpn" ==)
|
||||
|
|
|
|||
Loading…
Reference in New Issue