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Diffstat (limited to 'src/lib/Xmobar/Plugins/Monitors/MPD.hs')
| -rw-r--r-- | src/lib/Xmobar/Plugins/Monitors/MPD.hs | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/lib/Xmobar/Plugins/Monitors/MPD.hs b/src/lib/Xmobar/Plugins/Monitors/MPD.hs new file mode 100644 index 0000000..9525254 --- /dev/null +++ b/src/lib/Xmobar/Plugins/Monitors/MPD.hs @@ -0,0 +1,139 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Plugins.Monitors.MPD +-- Copyright : (c) Jose A Ortega Ruiz +-- License : BSD-style (see LICENSE) +-- +-- Maintainer : Jose A Ortega Ruiz <jao@gnu.org> +-- Stability : unstable +-- Portability : unportable +-- +-- MPD status and song +-- +----------------------------------------------------------------------------- + +module Xmobar.Plugins.Monitors.MPD ( mpdConfig, runMPD, mpdWait, mpdReady ) where + +import Data.List +import Data.Maybe (fromMaybe) +import Xmobar.Plugins.Monitors.Common +import System.Console.GetOpt +import qualified Network.MPD as M +import Control.Concurrent (threadDelay) + +mpdConfig :: IO MConfig +mpdConfig = mkMConfig "MPD: <state>" + [ "bar", "vbar", "ipat", "state", "statei", "volume", "length" + , "lapsed", "remaining", "plength", "ppos", "flags", "file" + , "name", "artist", "composer", "performer" + , "album", "title", "track", "genre", "date" + ] + +data MOpts = MOpts + { mPlaying :: String + , mStopped :: String + , mPaused :: String + , mLapsedIconPattern :: Maybe IconPattern + } + +defaultOpts :: MOpts +defaultOpts = MOpts + { mPlaying = ">>" + , mStopped = "><" + , mPaused = "||" + , mLapsedIconPattern = Nothing + } + +options :: [OptDescr (MOpts -> MOpts)] +options = + [ Option "P" ["playing"] (ReqArg (\x o -> o { mPlaying = x }) "") "" + , Option "S" ["stopped"] (ReqArg (\x o -> o { mStopped = x }) "") "" + , Option "Z" ["paused"] (ReqArg (\x o -> o { mPaused = x }) "") "" + , Option "" ["lapsed-icon-pattern"] (ReqArg (\x o -> + o { mLapsedIconPattern = Just $ parseIconPattern x }) "") "" + ] + +runMPD :: [String] -> Monitor String +runMPD args = do + opts <- io $ mopts args + status <- io $ M.withMPD M.status + song <- io $ M.withMPD M.currentSong + s <- parseMPD status song opts + parseTemplate s + +mpdWait :: IO () +mpdWait = do + status <- M.withMPD $ M.idle [M.PlayerS, M.MixerS, M.OptionsS] + case status of + Left _ -> threadDelay 10000000 + _ -> return () + +mpdReady :: [String] -> Monitor Bool +mpdReady _ = do + response <- io $ M.withMPD M.ping + case response of + Right _ -> return True + -- Only cases where MPD isn't responding is an issue; bogus information at + -- least won't hold xmobar up. + Left M.NoMPD -> return False + Left (M.ConnectionError _) -> return False + Left _ -> return True + +mopts :: [String] -> IO MOpts +mopts argv = + case getOpt Permute options argv of + (o, _, []) -> return $ foldr id defaultOpts o + (_, _, errs) -> ioError . userError $ concat errs + +parseMPD :: M.Response M.Status -> M.Response (Maybe M.Song) -> MOpts + -> Monitor [String] +parseMPD (Left e) _ _ = return $ show e:replicate 19 "" +parseMPD (Right st) song opts = do + songData <- parseSong song + bar <- showPercentBar (100 * b) b + vbar <- showVerticalBar (100 * b) b + ipat <- showIconPattern (mLapsedIconPattern opts) b + return $ [bar, vbar, ipat, ss, si, vol, len, lap, remain, plen, ppos, flags] ++ songData + where s = M.stState st + ss = show s + si = stateGlyph s opts + vol = int2str $ fromMaybe 0 (M.stVolume st) + (p, t) = fromMaybe (0, 0) (M.stTime st) + [lap, len, remain] = map showTime [floor p, t, max 0 (t - floor p)] + b = if t > 0 then realToFrac $ p / fromIntegral t else 0 + plen = int2str $ M.stPlaylistLength st + ppos = maybe "" (int2str . (+1)) $ M.stSongPos st + flags = playbackMode st + +stateGlyph :: M.State -> MOpts -> String +stateGlyph s o = + case s of + M.Playing -> mPlaying o + M.Paused -> mPaused o + M.Stopped -> mStopped o + +playbackMode :: M.Status -> String +playbackMode s = + concat [if p s then f else "-" | + (p,f) <- [(M.stRepeat,"r"), + (M.stRandom,"z"), + (M.stSingle,"s"), + (M.stConsume,"c")]] + +parseSong :: M.Response (Maybe M.Song) -> Monitor [String] +parseSong (Left _) = return $ repeat "" +parseSong (Right Nothing) = return $ repeat "" +parseSong (Right (Just s)) = + let str sel = maybe "" (intercalate ", " . map M.toString) (M.sgGetTag sel s) + sels = [ M.Name, M.Artist, M.Composer, M.Performer + , M.Album, M.Title, M.Track, M.Genre, M.Date ] + fields = M.toString (M.sgFilePath s) : map str sels + in mapM showWithPadding fields + +showTime :: Integer -> String +showTime t = int2str minutes ++ ":" ++ int2str seconds + where minutes = t `div` 60 + seconds = t `mod` 60 + +int2str :: (Show a, Num a, Ord a) => a -> String +int2str x = if x < 10 then '0':sx else sx where sx = show x |