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109 lines
3.9 KiB
Haskell
109 lines
3.9 KiB
Haskell
{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}
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-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Layout.NoBorders
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-- Copyright : (c) David Roundy <droundy@darcs.net>
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-- License : BSD3-style (see LICENSE)
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--
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-- Maintainer : none
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Make a given layout display without borders. This is useful for
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-- full-screen or tabbed layouts, where you don't really want to waste a
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-- couple of pixels of real estate just to inform yourself that the visible
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-- window has focus.
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--
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-----------------------------------------------------------------------------
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module XMonad.Layout.NoBorders (
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-- * Usage
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-- $usage
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noBorders,
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smartBorders,
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withBorder
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) where
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import XMonad
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import XMonad.Layout.LayoutModifier
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import qualified XMonad.StackSet as W
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import Data.List ((\\))
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import qualified Data.Map as M
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-- $usage
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-- You can use this module with the following in your ~\/.xmonad\/xmonad.hs file:
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--
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-- > import XMonad.Layout.NoBorders
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--
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-- and modify the layouts to call noBorders on the layouts you want to lack
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-- borders:
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--
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-- > layoutHook = ... ||| noBorders Full ||| ...
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--
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-- For more detailed instructions on editing the layoutHook see:
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--
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-- "XMonad.Doc.Extending#Editing_the_layout_hook"
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-- todo, use an InvisibleList.
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data WithBorder a = WithBorder Dimension [a] deriving ( Read, Show )
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instance LayoutModifier WithBorder Window where
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unhook (WithBorder _ s) = asks (borderWidth . config) >>= setBorders s
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redoLayout (WithBorder n s) _ _ wrs = do
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asks (borderWidth . config) >>= setBorders (s \\ ws)
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setBorders ws n
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return (wrs, Just $ WithBorder n ws)
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where
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ws = map fst wrs
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-- | Removes all window borders from the specified layout.
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noBorders :: LayoutClass l Window => l Window -> ModifiedLayout WithBorder l Window
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noBorders = withBorder 0
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-- | Forces a layout to use the specified border width. 'noBorders' is
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-- equivalent to @'withBorder' 0@.
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withBorder :: LayoutClass l a => Dimension -> l a -> ModifiedLayout WithBorder l a
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withBorder b = ModifiedLayout $ WithBorder b []
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setBorders :: [Window] -> Dimension -> X ()
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setBorders ws bw = withDisplay $ \d -> mapM_ (\w -> io $ setWindowBorderWidth d w bw) ws
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data SmartBorder a = SmartBorder [a] deriving (Read, Show)
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instance LayoutModifier SmartBorder Window where
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unhook (SmartBorder s) = asks (borderWidth . config) >>= setBorders s
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redoLayout (SmartBorder s) _ st wrs = do
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wset <- gets windowset
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let managedwindows = W.integrate st
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screens = filter (nonzerorect . screenRect . W.screenDetail) . W.screens $ wset
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ws = tiled ++ floating
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tiled = case filter (`elem` managedwindows) $ map fst wrs of
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[w] | singleton screens -> [w]
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_ -> []
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floating =
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[ w |
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(w, W.RationalRect px py wx wy) <- M.toList . W.floating $ wset,
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px <= 0, py <= 0,
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wx + px >= 1, wy + py >= 1
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]
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asks (borderWidth . config) >>= setBorders (s \\ ws)
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setBorders ws 0
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return (wrs, Just $ SmartBorder ws)
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where
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singleton = null . drop 1
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nonzerorect (Rectangle _ _ 0 0) = False
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nonzerorect _ = True
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-- | Removes the borders from a window under one of the following conditions:
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--
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-- * There is only one screen and only one window. In this case it's obvious
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-- that it has the focus, so no border is needed.
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--
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-- * A floating window covers the entire screen (e.g. mplayer).
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--
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smartBorders :: LayoutClass l a => l a -> ModifiedLayout SmartBorder l a
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smartBorders = ModifiedLayout (SmartBorder [])
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