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Diffstat (limited to 'Plugins/Monitors/Batt.hs')
| -rw-r--r-- | Plugins/Monitors/Batt.hs | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/Plugins/Monitors/Batt.hs b/Plugins/Monitors/Batt.hs deleted file mode 100644 index 11b2d6c..0000000 --- a/Plugins/Monitors/Batt.hs +++ /dev/null @@ -1,165 +0,0 @@ ------------------------------------------------------------------------------ --- | --- Module : Plugins.Monitors.Batt --- Copyright : (c) Andrea Rossato, 2010 Petr Rockai, 2010 Jose A Ortega --- License : BSD-style (see LICENSE) --- --- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org> --- Stability : unstable --- Portability : unportable --- --- A battery monitor for Xmobar --- ------------------------------------------------------------------------------ - -module Plugins.Monitors.Batt ( battConfig, runBatt, runBatt' ) where - -import qualified Data.ByteString.Lazy.Char8 as B -import Plugins.Monitors.Common -import System.Posix.Files (fileExist) -import System.Console.GetOpt - -data BattOpts = BattOpts - { onString :: String - , offString :: String - , posColor :: Maybe String - , lowWColor :: Maybe String - , mediumWColor :: Maybe String - , highWColor :: Maybe String - , lowThreshold :: Float - , highThreshold :: Float - } - -defaultOpts :: BattOpts -defaultOpts = BattOpts - { onString = "On" - , offString = "Off" - , posColor = Nothing - , lowWColor = Nothing - , mediumWColor = Nothing - , highWColor = Nothing - , lowThreshold = -12 - , highThreshold = -10 - } - -options :: [OptDescr (BattOpts -> BattOpts)] -options = - [ Option "O" ["on"] (ReqArg (\x o -> o { onString = x }) "") "" - , Option "o" ["off"] (ReqArg (\x o -> o { offString = x }) "") "" - , Option "p" ["positive"] (ReqArg (\x o -> o { posColor = Just x }) "") "" - , Option "l" ["low"] (ReqArg (\x o -> o { lowWColor = Just x }) "") "" - , Option "m" ["medium"] (ReqArg (\x o -> o { mediumWColor = Just x }) "") "" - , Option "h" ["high"] (ReqArg (\x o -> o { highWColor = Just x }) "") "" - , Option "L" ["lowt"] (ReqArg (\x o -> o { lowThreshold = read x }) "") "" - , Option "H" ["hight"] (ReqArg (\x o -> o { highThreshold = read x }) "") "" - ] - -parseOpts :: [String] -> IO BattOpts -parseOpts argv = - case getOpt Permute options argv of - (o, _, []) -> return $ foldr id defaultOpts o - (_, _, errs) -> ioError . userError $ concat errs - -data Result = Result Float Float Float String | NA - -base :: String -base = "/sys/class/power_supply" - -battConfig :: IO MConfig -battConfig = mkMConfig - "Batt: <watts>, <left>% / <timeleft>" -- template - ["leftbar", "left", "acstatus", "timeleft", "watts"] -- replacements - -data Files = Files - { f_full :: String - , f_now :: String - , f_voltage :: String - , f_current :: String - } | NoFiles - -data Battery = Battery - { full :: Float - , now :: Float - , voltage :: Float - , current :: Float - } - -batteryFiles :: String -> IO Files -batteryFiles bat = - do is_charge <- fileExist $ prefix ++ "/charge_now" - is_energy <- fileExist $ prefix ++ "/energy_now" - return $ case (is_charge, is_energy) of - (True, _) -> files "/charge" - (_, True) -> files "/energy" - _ -> NoFiles - where prefix = base ++ "/" ++ bat - files ch = Files { f_full = prefix ++ ch ++ "_full" - , f_now = prefix ++ ch ++ "_now" - , f_current = prefix ++ "/current_now" - , f_voltage = prefix ++ "/voltage_now" } - -haveAc :: IO (Maybe Bool) -haveAc = do know <- fileExist $ base ++ "/AC/online" - if know - then do s <- B.unpack `fmap` catRead (base ++ "/AC/online") - return $ Just $ s == "1\n" - else return Nothing - -readBattery :: Files -> IO Battery -readBattery NoFiles = return $ Battery 0 0 0 0 -readBattery files = - do a <- grab $ f_full files -- microwatthours - b <- grab $ f_now files - c <- grab $ f_voltage files -- microvolts - d <- grab $ f_current files -- microwatts (huh!) - return $ Battery (3600 * a / 1000000) -- wattseconds - (3600 * b / 1000000) -- wattseconds - (c / 1000000) -- volts - (d / c) -- amperes - where grab = fmap (read . B.unpack) . catRead - -readBatteries :: BattOpts -> [Files] -> IO Result -readBatteries opts bfs = - do bats <- mapM readBattery (take 3 bfs) - ac' <- haveAc - let ac = (ac' == Just True) - sign = if ac then 1 else -1 - left = sum (map now bats) / sum (map full bats) - watts = sign * sum (map voltage bats) * sum (map current bats) - time = if watts == 0 then 0 else sum $ map time' bats -- negate sign - time' b = (if ac then full b - now b else now b) / (sign * watts) - acstr = case ac' of - Nothing -> "?" - Just True -> onString opts - Just False -> offString opts - return $ if isNaN left then NA else Result left watts time acstr - -runBatt :: [String] -> Monitor String -runBatt = runBatt' ["BAT0","BAT1","BAT2"] - -runBatt' :: [String] -> [String] -> Monitor String -runBatt' bfs args = do - opts <- io $ parseOpts args - c <- io $ readBatteries opts =<< mapM batteryFiles bfs - case c of - Result x w t s -> - do l <- fmtPercent x - parseTemplate (l ++ s:[fmtTime $ floor t, fmtWatts w opts]) - NA -> return "N/A" - where fmtPercent :: Float -> Monitor [String] - fmtPercent x = do - p <- showPercentWithColors x - b <- showPercentBar (100 * x) x - return [b, p] - fmtWatts x o = color x o $ showDigits 1 x ++ "W" - fmtTime :: Integer -> String - fmtTime x = hours ++ ":" ++ if length minutes == 2 - then minutes else '0' : minutes - where hours = show (x `div` 3600) - minutes = show ((x `mod` 3600) `div` 60) - maybeColor Nothing _ = "" - maybeColor (Just c) str = "<fc=" ++ c ++ ">" ++ str ++ "</fc>" - color x o | x >= 0 = maybeColor (posColor o) - | x >= highThreshold o = maybeColor (highWColor o) - | x >= lowThreshold o = maybeColor (mediumWColor o) - | otherwise = maybeColor (lowWColor o) |