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-rw-r--r--src/Config.hs3
-rw-r--r--src/Plugins/Locks.hs51
2 files changed, 53 insertions, 1 deletions
diff --git a/src/Config.hs b/src/Config.hs
index a6ad3e2..622c79c 100644
--- a/src/Config.hs
+++ b/src/Config.hs
@@ -34,6 +34,7 @@ import Plugins.StdinReader
import Plugins.XMonadLog
import Plugins.EWMH
import Plugins.Kbd
+import Plugins.Locks
#ifdef INOTIFY
import Plugins.Mail
@@ -120,7 +121,7 @@ infixr :*:
-- the 'Runnable.Runnable' Read instance. To install a plugin just add
-- the plugin's type to the list of types (separated by ':*:') appearing in
-- this function's type signature.
-runnableTypes :: Command :*: Monitors :*: Date :*: PipeReader :*: BufferedPipeReader :*: CommandReader :*: StdinReader :*: XMonadLog :*: EWMH :*: Kbd :*:
+runnableTypes :: Command :*: Monitors :*: Date :*: PipeReader :*: BufferedPipeReader :*: CommandReader :*: StdinReader :*: XMonadLog :*: EWMH :*: Kbd :*: Locks :*:
#ifdef INOTIFY
Mail :*: MBox :*:
#endif
diff --git a/src/Plugins/Locks.hs b/src/Plugins/Locks.hs
new file mode 100644
index 0000000..296bcb4
--- /dev/null
+++ b/src/Plugins/Locks.hs
@@ -0,0 +1,51 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module : Plugins.Locks
+-- Copyright : (c) Patrick Chilton
+-- License : BSD-style (see LICENSE)
+--
+-- Maintainer : Patrick Chilton <chpatrick@gmail.com>
+-- Stability : unstable
+-- Portability : unportable
+--
+-- A plugin that displays the status of the lock keys.
+--
+-----------------------------------------------------------------------------
+
+module Plugins.Locks where
+
+import Graphics.X11
+import Data.List
+import Data.Bits
+import Control.Monad
+import Graphics.X11.Xlib.Extras
+import Plugins
+
+data Locks = Locks
+ deriving (Read, Show)
+
+locks :: [ ( KeySym, String )]
+locks = [ ( xK_Caps_Lock, "CAPS" )
+ , ( xK_Num_Lock, "NUM" )
+ , ( xK_Scroll_Lock, "SCROLL" )
+ ]
+
+instance Exec Locks where
+ alias Locks = "locks"
+ rate Locks = 2
+ run Locks = do
+ d <- openDisplay ""
+ root <- rootWindow d (defaultScreen d)
+
+ 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
+ closeDisplay d
+
+ return $ unwords $ map snd ls \ No newline at end of file