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8cb789af39
Libraries like Control.Monad are no longer exported from Control.Monad.Reader et.al. Related: https://github.com/xmonad/xmonad/pull/427 xmonad/xmonad#d170e99bc5e97db96be9a02b72149103e8d419af
56 lines
1.8 KiB
Haskell
56 lines
1.8 KiB
Haskell
{-# LANGUAGE LambdaCase #-}
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----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Hooks.WorkspaceByPos
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-- Description : Move new window to non-focused screen based on its requested geometry.
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-- Copyright : (c) Jan Vornberger 2009
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-- License : BSD3-style (see LICENSE)
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--
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-- Maintainer : jan.vornberger@informatik.uni-oldenburg.de
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-- Stability : unstable
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-- Portability : not portable
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--
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-- Useful in a dual-head setup: Looks at the requested geometry of
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-- new windows and moves them to the workspace of the non-focused
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-- screen if necessary.
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--
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-----------------------------------------------------------------------------
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module XMonad.Hooks.WorkspaceByPos (
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-- * Usage
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-- $usage
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workspaceByPos
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) where
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import XMonad
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import XMonad.Prelude
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import qualified XMonad.StackSet as W
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import Control.Monad.Except (runExceptT, throwError)
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import Control.Monad.Trans (lift)
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-- $usage
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-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
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--
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-- > import XMonad.Hooks.WorkspaceByPos
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-- >
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-- > myManageHook = workspaceByPos <> manageHook def
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-- >
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-- > main = xmonad def { manageHook = myManageHook }
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workspaceByPos :: ManageHook
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workspaceByPos = (maybe idHook doShift <=< liftX . needsMoving) =<< ask
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needsMoving :: Window -> X (Maybe WorkspaceId)
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needsMoving w = safeGetWindowAttributes w >>= \case
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Nothing -> pure Nothing
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Just wa -> fmap (either (const Nothing) Just) . runExceptT $ do
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-- only relocate windows with non-zero position
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guard $ wa_x wa /= 0 || wa_y wa /= 0
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ws <- gets windowset
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sc <- lift $ fromMaybe (W.current ws)
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<$> pointScreen (fi $ wa_x wa) (fi $ wa_y wa)
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Just wkspc <- lift $ screenWorkspace (W.screen sc)
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guard $ W.currentTag ws /= wkspc
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return wkspc `asTypeOf` throwError ""
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