REF arrange dependency module sanely
This commit is contained in:
parent
31ef889762
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da1e4a1c79
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@ -40,6 +40,7 @@ import XMonad.Hooks.DynamicLog
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)
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import XMonad.Internal.Command.Power (hasBattery)
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import XMonad.Internal.DBus.Brightness.IntelBacklight
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import XMonad.Internal.Shell
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-- import XMonad.Internal.DBus.Common (xmonadBus)
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-- import XMonad.Internal.DBus.Control (pathExists)
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import XMonad.Internal.DBus.Screensaver (ssSignalDep)
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@ -263,7 +264,7 @@ vpnPresent = do
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where
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args = ["-c", "no", "-t", "-f", "TYPE", "c", "show"]
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rightPlugins :: [IO (MaybeExe CmdSpec)]
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rightPlugins :: [IO (MaybeAction CmdSpec)]
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rightPlugins =
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[ getWireless
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, getEthernet
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@ -280,21 +281,21 @@ rightPlugins =
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where
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nocheck = return . Right
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getWireless :: IO (MaybeExe CmdSpec)
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getWireless :: IO (MaybeAction CmdSpec)
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getWireless = do
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i <- readInterface isWireless
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return $ maybe (Left []) (Right . wirelessCmd) i
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getEthernet :: IO (MaybeExe CmdSpec)
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getEthernet :: IO (MaybeAction CmdSpec)
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getEthernet = do
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i <- readInterface isEthernet
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evalFeature $ maybe BlankFeature (featureRun "ethernet status indicator" [dep] . ethernetCmd) i
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evalFeature $ maybe BlankFeature (featureDefault "ethernet status indicator" [dep] . ethernetCmd) i
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where
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dep = dbusDep True devBus devPath devInterface $ Method_ devGetByIP
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getBattery :: BarFeature
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getBattery = Feature
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{ ftrAction = batteryCmd
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{ ftrMaybeAction = batteryCmd
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, ftrName = "battery level indicator"
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, ftrWarning = Default
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, ftrChildren = [IOTest hasBattery]
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@ -304,7 +305,7 @@ type BarFeature = Feature CmdSpec
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getVPN :: BarFeature
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getVPN = Feature
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{ ftrAction = vpnCmd
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{ ftrMaybeAction = vpnCmd
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, ftrName = "VPN status indicator"
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, ftrWarning = Default
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, ftrChildren = [d, v]
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@ -315,7 +316,7 @@ getVPN = Feature
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getBt :: BarFeature
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getBt = Feature
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{ ftrAction = btCmd
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{ ftrMaybeAction = btCmd
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, ftrName = "bluetooth status indicator"
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, ftrWarning = Default
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, ftrChildren = [dep]
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@ -325,7 +326,7 @@ getBt = Feature
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getAlsa :: BarFeature
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getAlsa = Feature
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{ ftrAction = alsaCmd
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{ ftrMaybeAction = alsaCmd
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, ftrName = "volume level indicator"
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, ftrWarning = Default
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, ftrChildren = [Executable "alsactl"]
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@ -333,7 +334,7 @@ getAlsa = Feature
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getBl :: BarFeature
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getBl = Feature
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{ ftrAction = blCmd
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{ ftrMaybeAction = blCmd
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, ftrName = "Intel backlight indicator"
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, ftrWarning = Default
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, ftrChildren = [intelBacklightSignalDep]
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@ -341,13 +342,13 @@ getBl = Feature
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getSs :: BarFeature
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getSs = Feature
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{ ftrAction = ssCmd
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{ ftrMaybeAction = ssCmd
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, ftrName = "screensaver indicator"
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, ftrWarning = Default
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, ftrChildren = [ssSignalDep]
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}
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getAllCommands :: [MaybeExe CmdSpec] -> IO BarRegions
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getAllCommands :: [MaybeAction CmdSpec] -> IO BarRegions
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getAllCommands right = do
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let left =
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[ CmdSpec
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@ -86,7 +86,7 @@ main = do
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, tsChildHandles = [h]
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}
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lockRes <- evalFeature runScreenLock
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let lock = whenInstalled lockRes
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let lock = whenSatisfied lockRes
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ext <- evalExternal $ externalBindings ts lock
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warnMissing $ externalToMissing ext
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-- IDK why this is necessary; nothing prior to this line will print if missing
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@ -464,13 +464,13 @@ internalBindings c =
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mkNamedSubmap :: XConfig Layout -> KeyGroup (X ()) -> [((KeyMask, KeySym), NamedAction)]
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mkNamedSubmap c KeyGroup { kgHeader = h, kgBindings = b } =
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(subtitle h:) $ mkNamedKeymap c
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$ (\KeyBinding{kbSyms = s, kbDesc = d, kbAction = a} -> (s, addName d a))
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$ (\KeyBinding{kbSyms = s, kbDesc = d, kbMaybeAction = a} -> (s, addName d a))
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<$> b
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data KeyBinding a = KeyBinding
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{ kbSyms :: String
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, kbDesc :: String
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, kbAction :: a
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, kbMaybeAction :: a
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}
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data KeyGroup a = KeyGroup
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@ -485,23 +485,23 @@ evalExternal = mapM go
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(\bs' -> k { kgBindings = bs' }) <$> mapM evalKeyBinding bs
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evalKeyBinding :: KeyBinding FeatureX -> IO (KeyBinding MaybeX)
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evalKeyBinding k@KeyBinding { kbAction = a } =
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(\f -> k { kbAction = f }) <$> evalFeature a
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evalKeyBinding k@KeyBinding { kbMaybeAction = a } =
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(\f -> k { kbMaybeAction = f }) <$> evalFeature a
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filterExternal :: [KeyGroup MaybeX] -> [KeyGroup (X ())]
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filterExternal = fmap go
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where
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go k@KeyGroup { kgBindings = bs } = k { kgBindings = mapMaybe flagKeyBinding bs }
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externalToMissing :: [KeyGroup (MaybeExe a)] -> [MaybeExe a]
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externalToMissing :: [KeyGroup (MaybeAction a)] -> [MaybeAction a]
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externalToMissing = concatMap go
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where
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go KeyGroup { kgBindings = bs } = fmap kbAction bs
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go KeyGroup { kgBindings = bs } = fmap kbMaybeAction bs
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flagKeyBinding :: KeyBinding MaybeX -> Maybe (KeyBinding (X ()))
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flagKeyBinding k@KeyBinding{ kbDesc = d, kbAction = a } = case a of
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(Right x) -> Just $ k{ kbAction = x }
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(Left _) -> Just $ k{ kbDesc = "[!!!]" ++ d, kbAction = skip }
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flagKeyBinding k@KeyBinding{ kbDesc = d, kbMaybeAction = a } = case a of
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(Right x) -> Just $ k{ kbMaybeAction = x }
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(Left _) -> Just $ k{ kbDesc = "[!!!]" ++ d, kbMaybeAction = skip }
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externalBindings :: ThreadState -> X () -> [KeyGroup FeatureX]
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externalBindings ts lock =
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@ -24,6 +24,7 @@ import XMonad.Core hiding (spawn)
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import XMonad.Internal.Dependency
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import XMonad.Internal.Notify
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import XMonad.Internal.Process
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import XMonad.Internal.Shell
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import XMonad.Util.NamedActions
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--------------------------------------------------------------------------------
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@ -48,7 +49,7 @@ myDmenuNetworks = "networkmanager_dmenu"
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-- | Other internal functions
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spawnDmenuCmd :: String -> [String] -> FeatureX
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spawnDmenuCmd n = featureSpawnCmd n myDmenuCmd
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spawnDmenuCmd n = featureExeArgs n myDmenuCmd
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themeArgs :: String -> [String]
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themeArgs hexColor =
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@ -63,7 +64,7 @@ myDmenuMatchingArgs = ["-i"] -- case insensitivity
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-- | Exported Commands
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runDevMenu :: FeatureX
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runDevMenu = featureRun "device manager" [Executable myDmenuDevices] $ do
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runDevMenu = featureDefault "device manager" [Executable myDmenuDevices] $ do
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c <- io $ getXdgDirectory XdgConfig "rofi/devices.yml"
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spawnCmd myDmenuDevices
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$ ["-c", c]
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@ -71,20 +72,20 @@ runDevMenu = featureRun "device manager" [Executable myDmenuDevices] $ do
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++ myDmenuMatchingArgs
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runBwMenu :: FeatureX
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runBwMenu = featureRun "password manager" [Executable myDmenuPasswords] $
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runBwMenu = featureDefault "password manager" [Executable myDmenuPasswords] $
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spawnCmd myDmenuPasswords $ ["-c"] ++ themeArgs "#bb6600" ++ myDmenuMatchingArgs
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-- TODO this is weirdly inverted
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runShowKeys :: [((KeyMask, KeySym), NamedAction)] -> NamedAction
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runShowKeys x = addName "Show Keybindings" $ do
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s <- io $ evalFeature $ runDMenuShowKeys x
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ifInstalled s
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ifSatisfied s
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$ spawnNotify
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$ defNoteError { body = Just $ Text "could not display keymap" }
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runDMenuShowKeys :: [((KeyMask, KeySym), NamedAction)] -> FeatureX
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runDMenuShowKeys kbs =
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featureRun "keyboard shortcut menu" [Executable myDmenuCmd] $ io $ do
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featureDefault "keyboard shortcut menu" [Executable myDmenuCmd] $ io $ do
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(h, _, _, _) <- createProcess' $ (shell' cmd) { std_in = CreatePipe }
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forM_ h $ \h' -> hPutStr h' (unlines $ showKm kbs) >> hClose h'
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where
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@ -99,7 +100,7 @@ runAppMenu = spawnDmenuCmd "app launcher" ["-show", "drun"]
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runClipMenu :: FeatureX
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runClipMenu =
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featureRun "clipboard manager" [Executable myDmenuCmd, Executable "greenclip"]
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featureDefault "clipboard manager" [Executable myDmenuCmd, Executable "greenclip"]
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$ spawnCmd myDmenuCmd args
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where
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args = [ "-modi", "\"clipboard:greenclip print\""
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@ -112,8 +113,8 @@ runWinMenu = spawnDmenuCmd "window switcher" ["-show", "window"]
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runNetMenu :: FeatureX
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runNetMenu =
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featureSpawnCmd "network control menu" myDmenuNetworks $ themeArgs "#ff3333"
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featureExeArgs "network control menu" myDmenuNetworks $ themeArgs "#ff3333"
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runAutorandrMenu :: FeatureX
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runAutorandrMenu =
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featureSpawnCmd "autorandr menu" myDmenuMonitors $ themeArgs "#ff0066"
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featureExeArgs "autorandr menu" myDmenuMonitors $ themeArgs "#ff0066"
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@ -91,10 +91,10 @@ ethernetIface = "enp7s0f1"
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-- | Some nice apps
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runTerm :: FeatureX
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runTerm = featureSpawn "terminal" myTerm
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runTerm = featureExe "terminal" myTerm
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runTMux :: FeatureX
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runTMux = featureRun "terminal multiplexer" deps cmd
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runTMux = featureDefault "terminal multiplexer" deps cmd
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where
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deps = [Executable myTerm, Executable "tmux", Executable "bash"]
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cmd = spawn
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@ -105,25 +105,25 @@ runTMux = featureRun "terminal multiplexer" deps cmd
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msg = "could not connect to tmux session"
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runCalc :: FeatureX
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runCalc = featureRun "calculator" [Executable myTerm, Executable "R"]
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runCalc = featureDefault "calculator" [Executable myTerm, Executable "R"]
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$ spawnCmd myTerm ["-e", "R"]
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runBrowser :: FeatureX
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runBrowser = featureSpawn "web browser" myBrowser
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runBrowser = featureExe "web browser" myBrowser
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runEditor :: FeatureX
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runEditor = featureSpawnCmd "text editor" myEditor
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runEditor = featureExeArgs "text editor" myEditor
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["-c", "-e", doubleQuote "(select-frame-set-input-focus (selected-frame))"]
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runFileManager :: FeatureX
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runFileManager = featureSpawn "file browser" "pcmanfm"
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runFileManager = featureExe "file browser" "pcmanfm"
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--------------------------------------------------------------------------------
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-- | Multimedia Commands
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runMultimediaIfInstalled :: String -> String -> FeatureX
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runMultimediaIfInstalled n cmd =
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featureSpawnCmd (n ++ " multimedia control") myMultimediaCtl [cmd]
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featureExeArgs (n ++ " multimedia control") myMultimediaCtl [cmd]
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runTogglePlay :: FeatureX
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runTogglePlay = runMultimediaIfInstalled "play/pause" "play-pause"
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@ -151,7 +151,7 @@ playSound file = do
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featureSound :: String -> FilePath -> X () -> X () -> FeatureX
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featureSound n file pre post =
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featureRun ("volume " ++ n ++ " control") [Executable "paplay"]
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featureDefault ("volume " ++ n ++ " control") [Executable "paplay"]
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$ pre >> playSound file >> post
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runVolumeDown :: FeatureX
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@ -168,7 +168,7 @@ runVolumeMute = featureSound "mute" volumeChangeSound (void toggleMute) $ return
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runNotificationCmd :: String -> String -> FeatureX
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runNotificationCmd n cmd =
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featureSpawnCmd (n ++ " control") myNotificationCtrl [cmd]
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featureExeArgs (n ++ " control") myNotificationCtrl [cmd]
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runNotificationClose :: FeatureX
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runNotificationClose = runNotificationCmd "close notification" "close"
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@ -190,7 +190,7 @@ runNotificationContext =
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runToggleBluetooth :: FeatureX
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runToggleBluetooth =
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featureRun "bluetooth toggle" [Executable myBluetooth]
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featureDefault "bluetooth toggle" [Executable myBluetooth]
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$ spawn
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$ myBluetooth ++ " show | grep -q \"Powered: no\""
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#!&& "a=on"
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@ -199,7 +199,7 @@ runToggleBluetooth =
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#!&& fmtNotifyCmd defNoteInfo { body = Just $ Text "bluetooth powered $a" }
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runToggleEthernet :: FeatureX
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runToggleEthernet = featureRun "ethernet toggle" [Executable "nmcli"]
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runToggleEthernet = featureDefault "ethernet toggle" [Executable "nmcli"]
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$ spawn
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$ "nmcli -g GENERAL.STATE device show " ++ ethernetIface ++ " | grep -q disconnected"
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#!&& "a=connect"
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@ -208,14 +208,14 @@ runToggleEthernet = featureRun "ethernet toggle" [Executable "nmcli"]
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#!&& fmtNotifyCmd defNoteInfo { body = Just $ Text "ethernet \"$a\"ed" }
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runStartISyncTimer :: FeatureX
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runStartISyncTimer = featureRun "isync timer" [userUnit "mbsync.timer"]
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runStartISyncTimer = featureDefault "isync timer" [userUnit "mbsync.timer"]
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$ spawn
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$ "systemctl --user start mbsync.timer"
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#!&& fmtNotifyCmd defNoteInfo { body = Just $ Text "Isync timer started" }
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#!|| fmtNotifyCmd defNoteError { body = Just $ Text "Isync timer failed to start" }
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runStartISyncService :: FeatureX
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runStartISyncService = featureRun "isync" [userUnit "mbsync.service"]
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runStartISyncService = featureDefault "isync" [userUnit "mbsync.service"]
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$ spawn
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$ "systemctl --user start mbsync.service"
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#!&& fmtNotifyCmd defNoteInfo { body = Just $ Text "Isync completed" }
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@ -260,7 +260,7 @@ getCaptureDir = do
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fallback = (</> ".local/share") <$> getHomeDirectory
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runFlameshot :: String -> String -> FeatureX
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runFlameshot n mode = featureRun n [Executable myCapture] $ do
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runFlameshot n mode = featureDefault n [Executable myCapture] $ do
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ssDir <- io getCaptureDir
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spawnCmd myCapture $ mode : ["-p", ssDir]
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@ -279,6 +279,6 @@ runScreenCapture = runFlameshot "screen capture" "screen"
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runCaptureBrowser :: FeatureX
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runCaptureBrowser =
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featureRun "screen capture browser" [Executable myImageBrowser] $ do
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featureDefault "screen capture browser" [Executable myImageBrowser] $ do
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dir <- io getCaptureDir
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spawnCmd myImageBrowser [dir]
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@ -46,7 +46,7 @@ myOptimusManager = "optimus-manager"
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-- | Core commands
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runScreenLock :: Feature (X ())
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runScreenLock = featureSpawn "screen locker" myScreenlock
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runScreenLock = featureExe "screen locker" myScreenlock
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runPowerOff :: X ()
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runPowerOff = spawn "systemctl poweroff"
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@ -101,24 +101,24 @@ runOptimusPrompt' = do
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#!&& "killall xmonad"
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runOptimusPrompt :: FeatureX
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runOptimusPrompt = featureRun "graphics switcher" [Executable myOptimusManager]
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runOptimusPrompt = featureDefault "graphics switcher" [Executable myOptimusManager]
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runOptimusPrompt'
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--------------------------------------------------------------------------------
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-- | Universal power prompt
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data PowerAction = Poweroff
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data PowerMaybeAction = Poweroff
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| Shutdown
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| Hibernate
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| Reboot
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deriving (Eq)
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instance Enum PowerAction where
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instance Enum PowerMaybeAction where
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toEnum 0 = Poweroff
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toEnum 1 = Shutdown
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toEnum 2 = Hibernate
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toEnum 3 = Reboot
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toEnum _ = errorWithoutStackTrace "Main.Enum.PowerAction.toEnum: bad argument"
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toEnum _ = errorWithoutStackTrace "Main.Enum.PowerMaybeAction.toEnum: bad argument"
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fromEnum Poweroff = 0
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fromEnum Shutdown = 1
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@ -131,22 +131,22 @@ instance XPrompt PowerPrompt where
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showXPrompt PowerPrompt = "(P)oweroff (S)uspend (H)ibernate (R)eboot:"
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runPowerPrompt :: X () -> X ()
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runPowerPrompt lock = mkXPrompt PowerPrompt theme comp executeAction
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runPowerPrompt lock = mkXPrompt PowerPrompt theme comp executeMaybeAction
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where
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comp = mkComplFunFromList []
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theme = T.promptTheme { promptKeymap = keymap }
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keymap = M.fromList
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$ ((controlMask, xK_g), quit) :
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map (first $ (,) 0)
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[ (xK_p, sendAction Poweroff)
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, (xK_s, sendAction Shutdown)
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, (xK_h, sendAction Hibernate)
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, (xK_r, sendAction Reboot)
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[ (xK_p, sendMaybeAction Poweroff)
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, (xK_s, sendMaybeAction Shutdown)
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, (xK_h, sendMaybeAction Hibernate)
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, (xK_r, sendMaybeAction Reboot)
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, (xK_Return, quit)
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, (xK_Escape, quit)
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]
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sendAction a = setInput (show $ fromEnum a) >> setSuccess True >> setDone True
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executeAction a = case toEnum $ read a of
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sendMaybeAction a = setInput (show $ fromEnum a) >> setSuccess True >> setDone True
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executeMaybeAction a = case toEnum $ read a of
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Poweroff -> runPowerOff
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Shutdown -> lock >> runSuspend
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Hibernate -> lock >> runHibernate
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@ -95,7 +95,7 @@ acpiPath = "/var/run/acpid.socket"
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-- | Spawn a new thread that will listen for ACPI events on the acpid socket
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-- and send ClientMessage events when it receives them
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runPowermon :: FeatureIO
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runPowermon = featureRun "ACPI event monitor" [pathR acpiPath] listenACPI
|
||||
runPowermon = featureDefault "ACPI event monitor" [pathR acpiPath] listenACPI
|
||||
|
||||
-- | Handle ClientMessage event containing and ACPI event (to be used in
|
||||
-- Xmonad's event hook)
|
||||
|
|
|
|||
|
|
@ -86,4 +86,4 @@ listenDevices = do
|
|||
|
||||
runRemovableMon :: FeatureIO
|
||||
runRemovableMon =
|
||||
featureRun "removeable device monitor" [addedDep, removedDep] listenDevices
|
||||
featureDefault "removeable device monitor" [addedDep, removedDep] listenDevices
|
||||
|
|
|
|||
|
|
@ -89,7 +89,7 @@ matchSignal BrightnessConfig { bcPath = p, bcInterface = i } cb = do
|
|||
brightnessExporter :: RealFrac b => [Dependency] -> BrightnessConfig a b
|
||||
-> Client -> FeatureIO
|
||||
brightnessExporter deps bc@BrightnessConfig { bcName = n } client = Feature
|
||||
{ ftrAction = exportBrightnessControls' bc client
|
||||
{ ftrMaybeAction = exportBrightnessControls' bc client
|
||||
, ftrName = n ++ " exporter"
|
||||
, ftrWarning = Default
|
||||
, ftrChildren = DBusBus xmonadBus:deps
|
||||
|
|
@ -133,7 +133,7 @@ emitBrightness BrightnessConfig{ bcPath = p, bcInterface = i } client cur =
|
|||
callBacklight :: BrightnessConfig a b -> String -> MemberName -> FeatureIO
|
||||
callBacklight BrightnessConfig { bcPath = p, bcInterface = i, bcName = n } controlName m =
|
||||
Feature
|
||||
{ ftrAction = void $ callMethod $ methodCall p i m
|
||||
{ ftrMaybeAction = void $ callMethod $ methodCall p i m
|
||||
, ftrName = unwords [n, controlName]
|
||||
, ftrWarning = Default
|
||||
, ftrChildren = [xDbusDep p i $ Method_ m]
|
||||
|
|
|
|||
|
|
@ -95,7 +95,7 @@ bodyGetCurrentState _ = Nothing
|
|||
|
||||
exportScreensaver :: Client -> FeatureIO
|
||||
exportScreensaver client = Feature
|
||||
{ ftrAction = cmd
|
||||
{ ftrMaybeAction = cmd
|
||||
, ftrName = "screensaver interface"
|
||||
, ftrWarning = Default
|
||||
, ftrChildren = [Executable ssExecutable, DBusBus xmonadBus]
|
||||
|
|
@ -122,7 +122,7 @@ exportScreensaver client = Feature
|
|||
|
||||
callToggle :: FeatureIO
|
||||
callToggle = Feature
|
||||
{ ftrAction = cmd
|
||||
{ ftrMaybeAction = cmd
|
||||
, ftrName = "screensaver toggle"
|
||||
, ftrWarning = Default
|
||||
, ftrChildren = [xDbusDep ssPath interface $ Method_ memToggle]
|
||||
|
|
|
|||
|
|
@ -2,17 +2,17 @@
|
|||
-- | Functions for handling dependencies
|
||||
|
||||
module XMonad.Internal.Dependency
|
||||
( MaybeExe
|
||||
, UnitType(..)
|
||||
, Dependency(..)
|
||||
, Bus(..)
|
||||
, Endpoint(..)
|
||||
, DBusMember(..)
|
||||
, Warning(..)
|
||||
( MaybeAction
|
||||
, MaybeX
|
||||
, FeatureX
|
||||
, FeatureIO
|
||||
, Feature(..)
|
||||
, Warning(..)
|
||||
, Dependency(..)
|
||||
, UnitType(..)
|
||||
, Bus(..)
|
||||
, Endpoint(..)
|
||||
, DBusMember(..)
|
||||
, ioFeature
|
||||
, evalFeature
|
||||
, systemUnit
|
||||
|
|
@ -20,14 +20,12 @@ module XMonad.Internal.Dependency
|
|||
, pathR
|
||||
, pathW
|
||||
, pathRW
|
||||
, featureRun
|
||||
, featureSpawnCmd
|
||||
, featureSpawn
|
||||
, featureDefault
|
||||
, featureExeArgs
|
||||
, featureExe
|
||||
, warnMissing
|
||||
, whenInstalled
|
||||
, ifInstalled
|
||||
, fmtCmd
|
||||
, spawnCmd
|
||||
, whenSatisfied
|
||||
, ifSatisfied
|
||||
, executeFeature
|
||||
, executeFeature_
|
||||
, applyFeature
|
||||
|
|
@ -54,30 +52,20 @@ import XMonad.Internal.Process
|
|||
import XMonad.Internal.Shell
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
-- | Gracefully handling missing binaries
|
||||
|
||||
data UnitType = SystemUnit | UserUnit deriving (Eq, Show)
|
||||
|
||||
data DBusMember = Method_ MemberName
|
||||
| Signal_ MemberName
|
||||
| Property_ String
|
||||
deriving (Eq, Show)
|
||||
|
||||
data Bus = Bus Bool BusName deriving (Eq, Show)
|
||||
|
||||
data Endpoint = Endpoint ObjectPath InterfaceName DBusMember deriving (Eq, Show)
|
||||
|
||||
data Dependency = Executable String
|
||||
| AccessiblePath FilePath Bool Bool
|
||||
| IOTest (IO (Maybe String))
|
||||
| DBusEndpoint Bus Endpoint
|
||||
| DBusBus Bus
|
||||
| Systemd UnitType String
|
||||
|
||||
data Warning = Silent | Default
|
||||
-- | Features
|
||||
--
|
||||
-- A 'feature' is an 'action' (usually an IO ()) that requires one or more
|
||||
-- 'dependencies'. Features also have a useful name and an error logging
|
||||
-- protocol.
|
||||
--
|
||||
-- NOTE: there is no way to make a feature depend on another feature. This is
|
||||
-- very complicated to implement and would only be applicable to a few instances
|
||||
-- (notable the dbus interfaces). In order to implement a dependency tree, use
|
||||
-- dependencies that target the output/state of another feature; this is more
|
||||
-- robust anyways, at the cost of being a bit slower.
|
||||
|
||||
data Feature a = Feature
|
||||
{ ftrAction :: a
|
||||
{ ftrMaybeAction :: a
|
||||
, ftrName :: String
|
||||
, ftrWarning :: Warning
|
||||
, ftrChildren :: [Dependency]
|
||||
|
|
@ -85,20 +73,50 @@ data Feature a = Feature
|
|||
| ConstFeature a
|
||||
| BlankFeature
|
||||
|
||||
-- TODO this is silly as is, and could be made more useful by representing
|
||||
-- loglevels
|
||||
data Warning = Silent | Default
|
||||
|
||||
type FeatureX = Feature (X ())
|
||||
|
||||
type FeatureIO = Feature (IO ())
|
||||
|
||||
ioFeature :: (MonadIO m) => Feature (IO a) -> Feature (m a)
|
||||
ioFeature f@Feature { ftrAction = a } = f { ftrAction = liftIO a }
|
||||
ioFeature f@Feature { ftrMaybeAction = a } = f { ftrMaybeAction = liftIO a }
|
||||
ioFeature (ConstFeature f) = ConstFeature $ liftIO f
|
||||
ioFeature BlankFeature = BlankFeature
|
||||
|
||||
evalFeature :: Feature a -> IO (MaybeExe a)
|
||||
featureDefault :: String -> [Dependency] -> a -> Feature a
|
||||
featureDefault n ds x = Feature
|
||||
{ ftrMaybeAction = x
|
||||
, ftrName = n
|
||||
, ftrWarning = Default
|
||||
, ftrChildren = ds
|
||||
}
|
||||
|
||||
featureExe :: MonadIO m => String -> String -> Feature (m ())
|
||||
featureExe n cmd = featureExeArgs n cmd []
|
||||
|
||||
featureExeArgs :: MonadIO m => String -> String -> [String] -> Feature (m ())
|
||||
featureExeArgs n cmd args =
|
||||
featureDefault n [Executable cmd] $ spawnCmd cmd args
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
-- | Feature evaluation
|
||||
--
|
||||
-- Evaluate a feature by testing if its dependencies are satisfied, and return
|
||||
-- either the action of the feature or 0 or more error messages that signify
|
||||
-- what dependencies are missing and why.
|
||||
|
||||
type MaybeAction a = Either [String] a
|
||||
|
||||
type MaybeX = MaybeAction (X ())
|
||||
|
||||
evalFeature :: Feature a -> IO (MaybeAction a)
|
||||
evalFeature (ConstFeature x) = return $ Right x
|
||||
evalFeature BlankFeature = return $ Left []
|
||||
evalFeature Feature
|
||||
{ ftrAction = a
|
||||
{ ftrMaybeAction = a
|
||||
, ftrName = n
|
||||
, ftrWarning = w
|
||||
, ftrChildren = c
|
||||
|
|
@ -113,6 +131,48 @@ evalFeature Feature
|
|||
Silent -> []
|
||||
Default -> fmap (fmtMsg procName "WARNING" . ((n ++ " disabled; ") ++)) es
|
||||
|
||||
applyFeature :: MonadIO m => (m a -> m a) -> a -> Feature (IO a) -> m a
|
||||
applyFeature iof def ftr = do
|
||||
a <- io $ evalFeature ftr
|
||||
either (\es -> io $ warnMissing' es >> return def) (iof . io) a
|
||||
|
||||
applyFeature_ :: MonadIO m => (m () -> m ()) -> Feature (IO ()) -> m ()
|
||||
applyFeature_ iof = applyFeature iof ()
|
||||
|
||||
executeFeature :: MonadIO m => a -> Feature (IO a) -> m a
|
||||
executeFeature = applyFeature id
|
||||
|
||||
executeFeature_ :: Feature (IO ()) -> IO ()
|
||||
executeFeature_ = executeFeature ()
|
||||
|
||||
whenSatisfied :: Monad m => MaybeAction (m ()) -> m ()
|
||||
whenSatisfied = flip ifSatisfied skip
|
||||
|
||||
ifSatisfied :: MaybeAction a -> a -> a
|
||||
ifSatisfied (Right x) _ = x
|
||||
ifSatisfied _ alt = alt
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
-- | Dependencies
|
||||
|
||||
data Dependency = Executable String
|
||||
| AccessiblePath FilePath Bool Bool
|
||||
| IOTest (IO (Maybe String))
|
||||
| DBusEndpoint Bus Endpoint
|
||||
| DBusBus Bus
|
||||
| Systemd UnitType String
|
||||
|
||||
data UnitType = SystemUnit | UserUnit deriving (Eq, Show)
|
||||
|
||||
data DBusMember = Method_ MemberName
|
||||
| Signal_ MemberName
|
||||
| Property_ String
|
||||
deriving (Eq, Show)
|
||||
|
||||
data Bus = Bus Bool BusName deriving (Eq, Show)
|
||||
|
||||
data Endpoint = Endpoint ObjectPath InterfaceName DBusMember deriving (Eq, Show)
|
||||
|
||||
pathR :: String -> Dependency
|
||||
pathR n = AccessiblePath n True False
|
||||
|
||||
|
|
@ -128,35 +188,29 @@ systemUnit = Systemd SystemUnit
|
|||
userUnit :: String -> Dependency
|
||||
userUnit = Systemd UserUnit
|
||||
|
||||
-- TODO this is poorly named. This actually represents an action that has
|
||||
-- one or more dependencies (where "action" is not necessarily executing an exe)
|
||||
type MaybeExe a = Either [String] a
|
||||
--------------------------------------------------------------------------------
|
||||
-- | Dependency evaluation
|
||||
--
|
||||
-- Test the existence of dependencies and return either Nothing (which actually
|
||||
-- means success) or Just <error message>.
|
||||
|
||||
type MaybeX = MaybeExe (X ())
|
||||
evalDependency :: Dependency -> IO (Maybe String)
|
||||
evalDependency (Executable n) = exeSatisfied n
|
||||
evalDependency (IOTest t) = t
|
||||
evalDependency (Systemd t n) = unitSatisfied t n
|
||||
evalDependency (AccessiblePath p r w) = pathSatisfied p r w
|
||||
evalDependency (DBusEndpoint b e) = endpointSatisfied b e
|
||||
evalDependency (DBusBus b) = busSatisfied b
|
||||
|
||||
featureRun :: String -> [Dependency] -> a -> Feature a
|
||||
featureRun n ds x = Feature
|
||||
{ ftrAction = x
|
||||
, ftrName = n
|
||||
, ftrWarning = Default
|
||||
, ftrChildren = ds
|
||||
}
|
||||
|
||||
featureSpawnCmd :: MonadIO m => String -> String -> [String] -> Feature (m ())
|
||||
featureSpawnCmd n cmd args = featureRun n [Executable cmd] $ spawnCmd cmd args
|
||||
|
||||
featureSpawn :: MonadIO m => String -> String -> Feature (m ())
|
||||
featureSpawn n cmd = featureSpawnCmd n cmd []
|
||||
|
||||
exeInstalled :: String -> IO (Maybe String)
|
||||
exeInstalled x = do
|
||||
exeSatisfied :: String -> IO (Maybe String)
|
||||
exeSatisfied x = do
|
||||
r <- findExecutable x
|
||||
return $ case r of
|
||||
(Just _) -> Nothing
|
||||
_ -> Just $ "executable '" ++ x ++ "' not found"
|
||||
|
||||
unitInstalled :: UnitType -> String -> IO (Maybe String)
|
||||
unitInstalled u x = do
|
||||
unitSatisfied :: UnitType -> String -> IO (Maybe String)
|
||||
unitSatisfied u x = do
|
||||
(rc, _, _) <- readCreateProcessWithExitCode' (shell cmd) ""
|
||||
return $ case rc of
|
||||
ExitSuccess -> Nothing
|
||||
|
|
@ -166,8 +220,8 @@ unitInstalled u x = do
|
|||
unitType SystemUnit = "system"
|
||||
unitType UserUnit = "user"
|
||||
|
||||
pathAccessible :: FilePath -> Bool -> Bool -> IO (Maybe String)
|
||||
pathAccessible p testread testwrite = do
|
||||
pathSatisfied :: FilePath -> Bool -> Bool -> IO (Maybe String)
|
||||
pathSatisfied p testread testwrite = do
|
||||
res <- getPermissionsSafe p
|
||||
let msg = permMsg res
|
||||
return msg
|
||||
|
|
@ -197,8 +251,8 @@ callMethod (Bus usesys bus) path iface mem = do
|
|||
disconnect client
|
||||
return $ bimap methodErrorMessage methodReturnBody reply
|
||||
|
||||
dbusBusExists :: Bus -> IO (Maybe String)
|
||||
dbusBusExists (Bus usesystem bus) = do
|
||||
busSatisfied :: Bus -> IO (Maybe String)
|
||||
busSatisfied (Bus usesystem bus) = do
|
||||
ret <- callMethod (Bus usesystem queryBus) queryPath queryIface queryMem
|
||||
return $ case ret of
|
||||
Left e -> Just e
|
||||
|
|
@ -214,8 +268,8 @@ dbusBusExists (Bus usesystem bus) = do
|
|||
bodyGetNames [v] = fromMaybe [] $ fromVariant v :: [String]
|
||||
bodyGetNames _ = []
|
||||
|
||||
dbusEndpointExists :: Bus -> Endpoint -> IO (Maybe String)
|
||||
dbusEndpointExists b@(Bus _ bus) (Endpoint objpath iface mem) = do
|
||||
endpointSatisfied :: Bus -> Endpoint -> IO (Maybe String)
|
||||
endpointSatisfied b@(Bus _ bus) (Endpoint objpath iface mem) = do
|
||||
ret <- callMethod b objpath introspectInterface introspectMethod
|
||||
return $ case ret of
|
||||
Left e -> Just e
|
||||
|
|
@ -245,43 +299,16 @@ dbusEndpointExists b@(Bus _ bus) (Endpoint objpath iface mem) = do
|
|||
, formatBusName bus
|
||||
]
|
||||
|
||||
evalDependency :: Dependency -> IO (Maybe String)
|
||||
evalDependency (Executable n) = exeInstalled n
|
||||
evalDependency (IOTest t) = t
|
||||
evalDependency (Systemd t n) = unitInstalled t n
|
||||
evalDependency (AccessiblePath p r w) = pathAccessible p r w
|
||||
evalDependency (DBusEndpoint b e) = dbusEndpointExists b e
|
||||
evalDependency (DBusBus b) = dbusBusExists b
|
||||
--------------------------------------------------------------------------------
|
||||
-- | Logging functions
|
||||
|
||||
whenInstalled :: Monad m => MaybeExe (m ()) -> m ()
|
||||
whenInstalled = flip ifInstalled skip
|
||||
|
||||
ifInstalled :: MaybeExe a -> a -> a
|
||||
ifInstalled (Right x) _ = x
|
||||
ifInstalled _ alt = alt
|
||||
|
||||
warnMissing :: [MaybeExe a] -> IO ()
|
||||
warnMissing :: [MaybeAction a] -> IO ()
|
||||
warnMissing xs = warnMissing' $ concat $ [ m | (Left m) <- xs ]
|
||||
|
||||
warnMissing' :: [String] -> IO ()
|
||||
warnMissing' = mapM_ putStrLn
|
||||
|
||||
applyFeature :: MonadIO m => (m a -> m a) -> a -> Feature (IO a) -> m a
|
||||
applyFeature iof def ftr = do
|
||||
a <- io $ evalFeature ftr
|
||||
either (\es -> io $ warnMissing' es >> return def) (iof . io) a
|
||||
|
||||
applyFeature_ :: MonadIO m => (m () -> m ()) -> Feature (IO ()) -> m ()
|
||||
applyFeature_ iof = applyFeature iof ()
|
||||
|
||||
executeFeature :: MonadIO m => a -> Feature (IO a) -> m a
|
||||
executeFeature = applyFeature id
|
||||
|
||||
executeFeature_ :: Feature (IO ()) -> IO ()
|
||||
executeFeature_ = executeFeature ()
|
||||
|
||||
fmtMsg :: String -> String -> String -> String
|
||||
fmtMsg procName level msg = unwords [bracket procName, bracket level, msg]
|
||||
where
|
||||
bracket s = "[" ++ s ++ "]"
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue