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{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.NoBorders
-- Copyright : (c) David Roundy <droundy@darcs.net>
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : Spencer Janssen <spencerjanssen@gmail.com>
-- Stability : unstable
-- Portability : unportable
--
-- Make a given layout display without borders. This is useful for
-- full-screen or tabbed layouts, where you don't really want to waste a
-- couple of pixels of real estate just to inform yourself that the visible
-- window has focus.
--
-----------------------------------------------------------------------------
module XMonad.Layout.NoBorders (
-- * Usage
-- $usage
noBorders,
smartBorders,
withBorder
) where
import XMonad
import XMonad.Layout.LayoutModifier
import qualified XMonad.StackSet as W
import Data.List ((\\))
import qualified Data.Map as M
-- $usage
-- You can use this module with the following in your ~\/.xmonad\/xmonad.hs file:
--
-- > import XMonad.Layout.NoBorders
--
-- and modify the layouts to call noBorders on the layouts you want to lack
-- borders:
--
-- > layoutHook = ... ||| noBorders Full ||| ...
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#Editing_the_layout_hook"
-- todo, use an InvisibleList.
data WithBorder a = WithBorder Dimension [a] deriving ( Read, Show )
instance LayoutModifier WithBorder Window where
unhook (WithBorder _ s) = asks (borderWidth . config) >>= setBorders s
redoLayout (WithBorder n s) _ _ wrs = do
asks (borderWidth . config) >>= setBorders (s \\ ws)
setBorders ws n
return (wrs, Just $ WithBorder n ws)
where
ws = map fst wrs
-- | Removes all window borders from the specified layout.
noBorders :: LayoutClass l Window => l Window -> ModifiedLayout WithBorder l Window
noBorders = withBorder 0
-- | Forces a layout to use the specified border width. 'noBorders' is
-- equivalent to @'withBorder' 0@.
withBorder :: LayoutClass l a => Dimension -> l a -> ModifiedLayout WithBorder l a
withBorder b = ModifiedLayout $ WithBorder b []
setBorders :: [Window] -> Dimension -> X ()
setBorders ws bw = withDisplay $ \d -> mapM_ (\w -> io $ setWindowBorderWidth d w bw) ws
data SmartBorder a = SmartBorder [a] deriving (Read, Show)
instance LayoutModifier SmartBorder Window where
unhook (SmartBorder s) = asks (borderWidth . config) >>= setBorders s
redoLayout (SmartBorder s) _ mst wrs = do
wset <- gets windowset
let managedwindows = W.integrate' mst
screens = filter (nonzerorect . screenRect . W.screenDetail) . W.screens $ wset
ws = tiled ++ floating
tiled = case filter (`elem` managedwindows) $ map fst wrs of
[w] | singleton screens -> [w]
_ -> []
floating =
[ w |
(w, W.RationalRect px py wx wy) <- M.toList . W.floating $ wset,
px <= 0, py <= 0,
wx + px >= 1, wy + py >= 1
]
asks (borderWidth . config) >>= setBorders (s \\ ws)
setBorders ws 0
return (wrs, Just $ SmartBorder ws)
where
singleton = null . drop 1
nonzerorect (Rectangle _ _ 0 0) = False
nonzerorect _ = True
-- | Removes the borders from a window under one of the following conditions:
--
-- * There is only one screen and only one window. In this case it's obvious
-- that it has the focus, so no border is needed.
--
-- * A floating window covers the entire screen (e.g. mplayer).
--
smartBorders :: LayoutClass l a => l a -> ModifiedLayout SmartBorder l a
smartBorders = ModifiedLayout (SmartBorder [])
|
