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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/Wireless.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/Wireless.hs')
-rw-r--r--src/Xmobar/Plugins/Monitors/Wireless.hs70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/Xmobar/Plugins/Monitors/Wireless.hs b/src/Xmobar/Plugins/Monitors/Wireless.hs
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+-----------------------------------------------------------------------------
+-- |
+-- Module : Plugins.Monitors.Wireless
+-- Copyright : (c) Jose Antonio Ortega Ruiz
+-- License : BSD-style (see LICENSE)
+--
+-- Maintainer : Jose Antonio Ortega Ruiz
+-- Stability : unstable
+-- Portability : unportable
+--
+-- A monitor reporting ESSID and link quality for wireless interfaces
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Wireless (wirelessConfig, runWireless) where
+
+import System.Console.GetOpt
+
+import Xmobar.Plugins.Monitors.Common
+import Network.IWlib
+
+newtype WirelessOpts = WirelessOpts
+ { qualityIconPattern :: Maybe IconPattern
+ }
+
+defaultOpts :: WirelessOpts
+defaultOpts = WirelessOpts
+ { qualityIconPattern = Nothing
+ }
+
+options :: [OptDescr (WirelessOpts -> WirelessOpts)]
+options =
+ [ Option "" ["quality-icon-pattern"] (ReqArg (\d opts ->
+ opts { qualityIconPattern = Just $ parseIconPattern d }) "") ""
+ ]
+
+parseOpts :: [String] -> IO WirelessOpts
+parseOpts argv =
+ case getOpt Permute options argv of
+ (o, _, []) -> return $ foldr id defaultOpts o
+ (_, _, errs) -> ioError . userError $ concat errs
+
+wirelessConfig :: IO MConfig
+wirelessConfig =
+ mkMConfig "<essid> <quality>"
+ ["essid", "quality", "qualitybar", "qualityvbar", "qualityipat"]
+
+runWireless :: String -> [String] -> Monitor String
+runWireless iface args = do
+ opts <- io $ parseOpts args
+ iface' <- if "" == iface then io findInterface else return iface
+ wi <- io $ getWirelessInfo iface'
+ na <- getConfigValue naString
+ let essid = wiEssid wi
+ qlty = fromIntegral $ wiQuality wi
+ e = if essid == "" then na else essid
+ ep <- showWithPadding e
+ q <- if qlty >= 0
+ then showPercentWithColors (qlty / 100)
+ else showWithPadding ""
+ qb <- showPercentBar qlty (qlty / 100)
+ qvb <- showVerticalBar qlty (qlty / 100)
+ qipat <- showIconPattern (qualityIconPattern opts) (qlty / 100)
+ parseTemplate [ep, q, qb, qvb, qipat]
+
+findInterface :: IO String
+findInterface = do
+ c <- readFile "/proc/net/wireless"
+ let nds = lines c
+ return $ if length nds > 2 then takeWhile (/= 'c') (nds!!2) else []