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110 lines
4.8 KiB
Haskell
110 lines
4.8 KiB
Haskell
-----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Actions.DynamicWorkspaces
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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 : David Roundy <droundy@darcs.net>
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-- Stability : unstable
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-- Portability : unportable
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--
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-- Provides bindings to add and delete workspaces. Note that you may only
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-- delete a workspace that is already empty.
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--
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-----------------------------------------------------------------------------
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module XMonad.Actions.DynamicWorkspaces (
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-- * Usage
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-- $usage
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addWorkspace, removeWorkspace,
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selectWorkspace, renameWorkspace,
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toNthWorkspace, withNthWorkspace
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) where
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import Control.Monad.Reader ( asks )
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import Control.Monad.State ( gets )
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import Data.List ( sort )
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import XMonad ( X, XState(..), Layout, WorkspaceId, WindowSet, config, layoutHook )
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import XMonad.Operations
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import XMonad.StackSet hiding (filter, modify, delete)
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import Graphics.X11.Xlib ( Window )
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import XMonad.Prompt.Workspace
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import XMonad.Prompt ( XPConfig )
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-- $usage
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-- You can use this module with the following in your Config.hs file:
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--
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-- > import XMonad.Actions.DynamicWorkspaces
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--
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-- > , ((modMask .|. shiftMask, xK_n), selectWorkspace defaultXPConfig)
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-- > , ((modMask .|. shiftMask, xK_BackSpace), removeWorkspace)
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-- > , ((modMask .|. shiftMask .|. controlMask, xK_r), renameWorkspace defaultXPConfig)
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--
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-- > -- mod-[1..9] %! Switch to workspace N
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-- > -- mod-shift-[1..9] %! Move client to workspace N
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-- > ++
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-- > zip (zip (repeat modMask) [xK_1..xK_9]) (map (withNthWorkspace W.greedyView) [0..])
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-- > ++
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-- > zip (zip (repeat (modMask .|. shiftMask)) [xK_1..xK_9]) (map (withNthWorkspace W.shift) [0..])
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allPossibleTags :: [WorkspaceId]
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allPossibleTags = map (:"") ['0'..]
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renameWorkspace :: XPConfig -> X ()
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renameWorkspace conf = workspacePrompt conf $ \w ->
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windows $ \s -> let sett wk = wk { tag = w }
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setscr scr = scr { workspace = sett $ workspace scr }
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sets q = q { current = setscr $ current q }
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in sets $ removeWorkspace' w s
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toNthWorkspace :: (String -> X ()) -> Int -> X ()
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toNthWorkspace job wnum = do ws <- gets (sort . map tag . workspaces . windowset)
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case drop wnum ws of
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(w:_) -> job w
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[] -> return ()
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withNthWorkspace :: (String -> WindowSet -> WindowSet) -> Int -> X ()
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withNthWorkspace job wnum = do ws <- gets (sort . map tag . workspaces . windowset)
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case drop wnum ws of
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(w:_) -> windows $ job w
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[] -> return ()
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selectWorkspace :: XPConfig -> X ()
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selectWorkspace conf = workspacePrompt conf $ \w ->
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do l <- asks (layoutHook . config)
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windows $ \s -> if tagMember w s
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then greedyView w s
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else addWorkspace' w l s
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addWorkspace :: Layout Window -> X ()
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addWorkspace l = do s <- gets windowset
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let newtag:_ = filter (not . (`tagMember` s)) allPossibleTags
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windows (addWorkspace' newtag l)
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removeWorkspace :: X ()
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removeWorkspace = do s <- gets windowset
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case s of
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StackSet { current = Screen { workspace = torem }
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, hidden = (w:_) }
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-> do windows $ view (tag w)
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windows (removeWorkspace' (tag torem))
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_ -> return ()
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addWorkspace' :: i -> l -> StackSet i l a sid sd -> StackSet i l a sid sd
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addWorkspace' newtag l s@(StackSet { current = scr@(Screen { workspace = w })
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, hidden = ws })
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= s { current = scr { workspace = Workspace newtag l Nothing }
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, hidden = w:ws }
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removeWorkspace' :: (Eq i) => i -> StackSet i l a sid sd -> StackSet i l a sid sd
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removeWorkspace' torem s@(StackSet { current = scr@(Screen { workspace = wc })
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, hidden = (w:ws) })
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| tag w == torem = s { current = scr { workspace = wc { stack = meld (stack w) (stack wc) } }
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, hidden = ws }
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where meld Nothing Nothing = Nothing
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meld x Nothing = x
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meld Nothing x = x
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meld (Just x) (Just y) = differentiate (integrate x ++ integrate y)
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removeWorkspace' _ s = s
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