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authorjao <jao@gnu.org>2018-11-25 15:10:29 +0000
committerjao <jao@gnu.org>2018-11-25 15:10:29 +0000
commit77df1ac30fa7af5948f7ff64f5fee9aed64552b3 (patch)
tree647a4eb67ff1c293a5c530538ee88fc0093b577a /src/Xmobar/Plugins/Monitors/MPD.hs
parente0d6da82de8d0d1cef98896164c6016b84e47068 (diff)
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Back to app/src, since it seems they're the default convention for stack
Diffstat (limited to 'src/Xmobar/Plugins/Monitors/MPD.hs')
-rw-r--r--src/Xmobar/Plugins/Monitors/MPD.hs139
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diff --git a/src/Xmobar/Plugins/Monitors/MPD.hs b/src/Xmobar/Plugins/Monitors/MPD.hs
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+-----------------------------------------------------------------------------
+-- |
+-- 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