diff options
| -rw-r--r-- | doc/plugins.org | 19 | ||||
| -rw-r--r-- | src/Xmobar/Plugins/Locks.hs | 58 | ||||
| -rw-r--r-- | xmobar.cabal | 1 |
3 files changed, 62 insertions, 16 deletions
diff --git a/doc/plugins.org b/doc/plugins.org index e408dec..ebe5a5b 100644 --- a/doc/plugins.org +++ b/doc/plugins.org @@ -698,18 +698,37 @@ #+begin_src haskell Run Brightness ["-t", "<bar>"] 60 #+end_src + *** =Locks= - Displays the status of Caps Lock, Num Lock and Scroll Lock. - Aliases to =locks= + - Contructors: + + - =Locks= is nullary and uses the strings =CAPS=, =NUM=, =SCROLL= to signal + that a lock is enabled (and empty strings to signal it's disabled) + + - =Locks'= allow customizing the strings for the enabled/disabled states + of the 3 locks by accepting an assoc list of type =[(String, (String, String))]=, + which is expected to contain exactly 3 elements with keys + ="CAPS"=, ="NUM"=, ="SCROLL"=. + - Example: #+begin_src haskell + -- using default labels Run Locks #+end_src + #+begin_src haskell + -- using custom labels + Run $ Locks' [("CAPS" , ("<fc=#00ff00>\xf023</fc>", "<fc=#777777>\xf09c</fc>") ) + ,("NUM" , ("<fc=#777777>\xf047</fc>", "<fc=#00ff00>\xf047</fc>" ) ) + ,("SCROLL", ("SlOCK", "" ))] + #+end_src + ** Load and Process monitors *** =Load Args RefreshRate= diff --git a/src/Xmobar/Plugins/Locks.hs b/src/Xmobar/Plugins/Locks.hs index 9176312..35a3f97 100644 --- a/src/Xmobar/Plugins/Locks.hs +++ b/src/Xmobar/Plugins/Locks.hs @@ -1,3 +1,4 @@ +{-# LANGUAGE TupleSections #-} ----------------------------------------------------------------------------- -- | -- Module : Plugins.Locks @@ -16,45 +17,70 @@ module Xmobar.Plugins.Locks(Locks(..)) where import Graphics.X11 import Data.List +import Data.List.Extra (trim) import Data.Bits +import Data.Maybe (fromJust) import Control.Monad +import Control.Monad.Extra (ifM) import Graphics.X11.Xlib.Extras import Xmobar.Run.Exec import Xmobar.System.Kbd import Xmobar.X11.Events (nextEvent') -data Locks = Locks +data Locks = Locks | Locks' [(String, (String, String))] deriving (Read, Show) locks :: [ ( KeySym, String )] -locks = [ ( xK_Caps_Lock, "CAPS" ) - , ( xK_Num_Lock, "NUM" ) +locks = [ ( xK_Caps_Lock, "CAPS" ) + , ( xK_Num_Lock, "NUM" ) , ( xK_Scroll_Lock, "SCROLL" ) ] -run' :: Display -> Window -> IO String -run' d root = do +type Labels = [ ( String, (String, String) )] +defaultLabels :: Labels +defaultLabels = let nms = map snd locks + in zip nms (map (, mempty) nms) + +type LabelledLock = (KeySym, String, String, String) + +attach :: (KeySym, String) -> Labels -> LabelledLock +(key, lock) `attach` lbls = let (enb, dis) = fromJust $ lookup lock lbls + in (key, lock, enb, dis) + +enabled :: (a, b, c, d) -> c +enabled (_, _, c, _) = c +disabled :: (a, b, c, d) -> d +disabled (_, _, _, d) = d + +isEnabled :: (Bits a1, Foldable t, Foldable t1, Integral a) + => Display -> t (a, t1 KeyCode) -> a1 -> (KeySym, b, c, d) -> IO Bool +isEnabled d modMap m ( ks, _, _, _ ) = do + kc <- keysymToKeycode d ks + return $ case find (elem kc . snd) modMap of + Nothing -> False + Just ( i, _ ) -> testBit m (fromIntegral i) + +run' :: Display -> Window -> Labels -> IO String +run' d root labels = do modMap <- getModifierMapping d ( _, _, _, _, _, _, _, m ) <- queryPointer d root - ls <- filterM ( \( ks, _ ) -> do - kc <- keysymToKeycode d ks - return $ case find (elem kc . snd) modMap of - Nothing -> False - Just ( i, _ ) -> testBit m (fromIntegral i) - ) locks - - return $ unwords $ map snd ls + ls' <- forM (map (`attach` labels) locks) + (\l -> ifM (isEnabled d modMap m l) + (return (enabled l)) + (return (disabled l))) + return $ trim $ unwords ls' instance Exec Locks where - alias Locks = "locks" - start Locks cb = do + alias _ = "locks" + start Locks cb = start (Locks' defaultLabels) cb + start (Locks' labels) cb = do d <- openDisplay "" root <- rootWindow d (defaultScreen d) _ <- xkbSelectEventDetails d xkbUseCoreKbd xkbIndicatorStateNotify m m allocaXEvent $ \ep -> forever $ do - cb =<< run' d root + cb =<< run' d root labels nextEvent' d ep getEvent ep diff --git a/xmobar.cabal b/xmobar.cabal index 7559af2..c366f53 100644 --- a/xmobar.cabal +++ b/xmobar.cabal @@ -204,6 +204,7 @@ library colour >= 2.3.6, containers, directory, + extra, extensible-exceptions == 0.1.*, filepath, mtl >= 2.1 && < 2.4, |