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#+title: Interfacing with window managers
Listed below are ways to interface xmobar with your window manager of
choice.
* Using the DBus IPC interface with XMonad
Bind the key which should {,un}map xmobar to a dummy value. This is
necessary for {,un}grabKey in xmonad.
#+begin_src haskell
((0, xK_Alt_L), pure ())
#+end_src
Also, install =avoidStruts= layout modifier from =XMonad.Hooks.ManageDocks=
Finally, install these two event hooks (=handleEventHook= in =XConfig=)
=myDocksEventHook= is a replacement for =docksEventHook= which reacts on unmap
events as well (which =docksEventHook= doesn't).
#+begin_src haskell
import qualified XMonad.Util.ExtensibleState as XS
data DockToggleTime = DTT { lastTime :: Time } deriving (Eq, Show, Typeable)
instance ExtensionClass DockToggleTime where
initialValue = DTT 0
toggleDocksHook :: Int -> KeySym -> Event -> X All
toggleDocksHook to ks ( KeyEvent { ev_event_display = d
, ev_event_type = et
, ev_keycode = ekc
, ev_time = etime
} ) =
io (keysymToKeycode d ks) >>= toggleDocks >> return (All True)
where
toggleDocks kc
| ekc == kc && et == keyPress = do
safeSendSignal ["Reveal 0", "TogglePersistent"]
XS.put ( DTT etime )
| ekc == kc && et == keyRelease = do
gap <- XS.gets ( (-) etime . lastTime )
safeSendSignal [ "TogglePersistent"
, "Hide " ++ show (if gap < 400 then to else 0)
]
| otherwise = return ()
safeSendSignal s = catchX (io $ sendSignal s) (return ())
sendSignal = withSession . callSignal
withSession mc = connectSession >>= \c -> callNoReply c mc >> disconnect c
callSignal :: [String] -> MethodCall
callSignal s = ( methodCall
( objectPath_ "/org/Xmobar/Control" )
( interfaceName_ "org.Xmobar.Control" )
( memberName_ "SendSignal" )
) { methodCallDestination = Just $ busName_ "org.Xmobar.Control"
, methodCallBody = map toVariant s
}
toggleDocksHook _ _ _ = return (All True)
myDocksEventHook :: Event -> X All
myDocksEventHook e = do
when (et == mapNotify || et == unmapNotify) $
whenX ((not `fmap` (isClient w)) <&&> runQuery checkDock w) refresh
return (All True)
where w = ev_window e
et = ev_event_type e
#+end_src
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