From a8653d8712c2d218adf3f70cef7e511060bed695 Mon Sep 17 00:00:00 2001
From: Andrea Rossato <andrea.rossato@ing.unitn.it>
Date: Wed, 18 Jul 2007 17:12:11 +0200
Subject: Monitors are now a Plugin that can be removed from Config.hs

darcs-hash:20070718151211-d6583-7e0e49c22d07feda72d03370fd592c196dfcc9c1.gz
---
 Plugins/Monitors/Batt.hs | 67 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 Plugins/Monitors/Batt.hs

(limited to 'Plugins/Monitors/Batt.hs')

diff --git a/Plugins/Monitors/Batt.hs b/Plugins/Monitors/Batt.hs
new file mode 100644
index 0000000..79c0015
--- /dev/null
+++ b/Plugins/Monitors/Batt.hs
@@ -0,0 +1,67 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Batt
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+-- 
+-- Maintainer  :  Andrea Rossato <andrea.rossato@unibz.it>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A battery monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Plugins.Monitors.Batt where
+
+import qualified Data.ByteString.Lazy.Char8 as B
+import System.Posix.Files
+
+import Plugins.Monitors.Common
+
+battConfig :: IO MConfig
+battConfig = mkMConfig
+       "Batt: <left>" -- template
+       ["left"]       -- available replacements
+
+fileB1 :: (String, String)
+fileB1 = ("/proc/acpi/battery/BAT1/info", "/proc/acpi/battery/BAT1/state")
+
+fileB2 :: (String, String)
+fileB2 = ("/proc/acpi/battery/BAT2/info", "/proc/acpi/battery/BAT2/state")
+
+checkFileBatt :: (String, String) -> IO Bool
+checkFileBatt (i,_) =
+    fileExist i
+
+readFileBatt :: (String, String) -> IO (B.ByteString, B.ByteString)
+readFileBatt (i,s) = 
+    do a <- B.readFile i
+       b <- B.readFile s
+       return (a,b)
+
+parseBATT :: IO Float
+parseBATT =
+    do (a1,b1) <- readFileBatt fileB1
+       c <- checkFileBatt fileB2
+       let sp p s = read $ stringParser p s
+           (fu, pr) = (sp (3,2) a1, sp (2,4) b1)
+       case c of
+         True -> do (a2,b2) <- readFileBatt fileB1
+                    let full = fu + (sp (3,2) a2)
+                        present = pr + (sp (2,4) b2)
+                    return $ present / full
+         _ -> return $ pr / fu
+
+
+formatBatt :: Float -> Monitor [String] 
+formatBatt x =
+    do let f s = floatToPercent (s / 100)
+       l <- showWithColors f (x * 100)
+       return [l]
+
+runBatt :: [String] -> Monitor String
+runBatt _ =
+    do c <- io $ parseBATT
+       l <- formatBatt c
+       parseTemplate l 
-- 
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