From 4866f2e367dfcf22a9591231ba40948826a1b438 Mon Sep 17 00:00:00 2001
From: Spencer Janssen <sjanssen@cse.unl.edu>
Date: Thu, 1 Nov 2007 21:10:59 +0100
Subject: Hierarchify

darcs-hash:20071101201059-a5988-fc1f1262bec1b69e13ba18ae7cefeafc8c4471d4.gz
---
 XMonad/Util/Dzen.hs | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 XMonad/Util/Dzen.hs

(limited to 'XMonad/Util/Dzen.hs')

diff --git a/XMonad/Util/Dzen.hs b/XMonad/Util/Dzen.hs
new file mode 100644
index 0000000..02fce05
--- /dev/null
+++ b/XMonad/Util/Dzen.hs
@@ -0,0 +1,71 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  XMonad.Util.Dzen
+-- Copyright   :  (c) glasser@mit.edu
+-- License     :  BSD
+--
+-- Maintainer  :  glasser@mit.edu
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- Handy wrapper for dzen. Requires dzen >= 0.2.4.
+--
+-----------------------------------------------------------------------------
+
+module XMonad.Util.Dzen (dzen, dzenWithArgs, dzenScreen,
+                           dzenUrgencyHook, dzenUrgencyHookWithArgs,
+                           seconds) where
+
+import Control.Monad (when)
+import Control.Monad.State (gets)
+import qualified Data.Set as S
+import Graphics.X11.Types (Window)
+
+import qualified XMonad.StackSet as W
+import XMonad
+
+import XMonad.Util.NamedWindows (getName)
+import XMonad.Util.Run (runProcessWithInputAndWait, seconds)
+
+-- | @dzen str timeout@ pipes @str@ to dzen2 for @timeout@ microseconds.
+-- Example usage:
+-- > dzen "Hi, mom!" (5 `seconds`)
+dzen :: String -> Int -> X ()
+dzen str timeout = dzenWithArgs str [] timeout
+
+-- | @dzen str args timeout@ pipes @str@ to dzen2 for @timeout@ seconds, passing @args@ to dzen.
+-- Example usage:
+-- > dzenWithArgs "Hi, dons!" ["-ta", "r"] (5 `seconds`)
+dzenWithArgs :: String -> [String] -> Int -> X ()
+dzenWithArgs str args timeout = io $ runProcessWithInputAndWait "dzen2" args (unchomp str) timeout
+  -- dzen seems to require the input to terminate with exactly one newline.
+  where unchomp s@['\n'] = s
+        unchomp []       = ['\n']
+        unchomp (c:cs)   = c : unchomp cs
+
+-- | @dzenScreen sc str timeout@ pipes @str@ to dzen2 for @timeout@ microseconds, and on screen @sc@.
+-- Requires dzen to be compiled with Xinerama support.
+dzenScreen :: ScreenId -> String -> Int -> X()
+dzenScreen sc str timeout = dzenWithArgs str ["-xs", screen] timeout
+    where screen  = toXineramaArg sc
+          toXineramaArg n = show ( ((fromIntegral n)+1)::Int )
+
+-- | Flashes when a window requests your attention and you can't see it. For use with
+-- XMonadContrib.UrgencyHook. Usage:
+-- > urgencyHook = dzenUrgencyHook (5 `seconds`)
+dzenUrgencyHook :: Int -> Window -> X ()
+dzenUrgencyHook = dzenUrgencyHookWithArgs []
+
+-- | Flashes when a window requests your attention and you can't see it. For use with
+-- XMonadContrib.UrgencyHook. Usage:
+-- > urgencyHook = dzenUrgencyHookWithArgs ["-bg", "darkgreen"] (5 `seconds`)
+dzenUrgencyHookWithArgs :: [String] -> Int -> Window -> X ()
+dzenUrgencyHookWithArgs args duration w = do
+    visibles <- gets mapped
+    name <- getName w
+    ws <- gets windowset
+    whenJust (W.findTag w ws) (flash name visibles)
+  where flash name visibles index =
+              when (not $ S.member w visibles) $
+              dzenWithArgs (show name ++ " requests your attention on workspace " ++ index)
+                           args duration
-- 
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