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f732082fdc
Typeable has been automatically derived for every type since GHC 7.10, so remove these obsolete derivations. This also allows us to get rid of the `DeriveDataTypeable` pragma quite naturally. Related: https://github.com/xmonad/xmonad/pull/299 (xmonad/xmonad@9e5b16ed8a) Related: bd5b969d9ba24236c0d5ef521c0397390dbc4b37 Fixes: https://github.com/xmonad/xmonad-contrib/issues/548
151 lines
6.2 KiB
Haskell
151 lines
6.2 KiB
Haskell
{-# LANGUAGE FlexibleContexts, MultiParamTypeClasses, TypeSynonymInstances, PatternGuards #-}
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----------------------------------------------------------------------------
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-- |
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-- Module : XMonad.Layout.Hidden
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-- Copyright : (c) Peter Jones 2015
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-- License : BSD3-style (see LICENSE)
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--
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-- Maintainer : pjones@devalot.com
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-- Stability : unstable
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-- Portability : not portable
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--
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-- Similar to "XMonad.Layout.Minimize" but completely removes windows
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-- from the window set so "XMonad.Layout.BoringWindows" isn't
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-- necessary. Perfect companion to
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-- "XMonad.Layout.BinarySpacePartition" since it can be used to move
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-- windows to another part of the BSP tree.
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--
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-----------------------------------------------------------------------------
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module XMonad.Layout.Hidden
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( -- * Usage
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-- $usage
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HiddenWindows
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, HiddenMsg (..)
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, hiddenWindows
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, hideWindow
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, popOldestHiddenWindow
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, popNewestHiddenWindow
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, popHiddenWindow
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) where
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--------------------------------------------------------------------------------
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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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--------------------------------------------------------------------------------
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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.Layout.Hidden
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--
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-- Then edit your @layoutHook@ by adding the @HiddenWindows@ layout modifier:
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--
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-- > myLayout = hiddenWindows (Tall 1 (3/100) (1/2)) ||| Full ||| etc..
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-- > main = xmonad def { layoutHook = myLayout }
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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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--
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-- In the key bindings, do something like:
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--
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-- > , ((modMask, xK_backslash), withFocused hideWindow)
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-- > , ((modMask .|. shiftMask, xK_backslash), popOldestHiddenWindow)
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-- > ...
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--
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-- For detailed instruction on editing the key bindings see:
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--
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-- "XMonad.Doc.Extending#Editing_key_bindings".
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--------------------------------------------------------------------------------
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newtype HiddenWindows a = HiddenWindows [Window] deriving (Show, Read)
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--------------------------------------------------------------------------------
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-- | Messages for the @HiddenWindows@ layout modifier.
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data HiddenMsg = HideWindow Window -- ^ Hide a window.
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| PopNewestHiddenWindow -- ^ Restore window (FILO).
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| PopOldestHiddenWindow -- ^ Restore window (FIFO).
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| PopSpecificHiddenWindow Window -- ^ Restore specific window.
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deriving (Eq)
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instance Message HiddenMsg
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--------------------------------------------------------------------------------
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instance LayoutModifier HiddenWindows Window where
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handleMess h@(HiddenWindows hidden) mess
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| Just (HideWindow win) <- fromMessage mess = hideWindowMsg h win
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| Just PopNewestHiddenWindow <- fromMessage mess = popNewestMsg h
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| Just PopOldestHiddenWindow <- fromMessage mess = popOldestMsg h
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| Just (PopSpecificHiddenWindow win) <- fromMessage mess = popSpecificMsg win h
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| Just ReleaseResources <- fromMessage mess = doUnhook
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| otherwise = return Nothing
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where doUnhook = do mapM_ restoreWindow hidden
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return Nothing
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modifierDescription _ = "Hidden"
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--------------------------------------------------------------------------------
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-- | Apply the @HiddenWindows@ layout modifier.
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hiddenWindows :: LayoutClass l Window => l Window -> ModifiedLayout HiddenWindows l Window
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hiddenWindows = ModifiedLayout $ HiddenWindows []
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--------------------------------------------------------------------------------
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-- | Remove the given window from the current layout. It is placed in
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-- list of hidden windows so it can be restored later.
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hideWindow :: Window -> X ()
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hideWindow = sendMessage . HideWindow
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--------------------------------------------------------------------------------
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-- | Restore a previously hidden window. Using this function will
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-- treat the list of hidden windows as a FIFO queue. That is, the
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-- first window hidden will be restored.
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popOldestHiddenWindow :: X ()
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popOldestHiddenWindow = sendMessage PopOldestHiddenWindow
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--------------------------------------------------------------------------------
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-- | Restore a previously hidden window. Using this function will
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-- treat the list of hidden windows as a FILO queue. That is, the
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-- most recently hidden window will be restored.
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popNewestHiddenWindow :: X ()
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popNewestHiddenWindow = sendMessage PopNewestHiddenWindow
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popHiddenWindow :: Window -> X ()
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popHiddenWindow = sendMessage . PopSpecificHiddenWindow
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--------------------------------------------------------------------------------
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hideWindowMsg :: HiddenWindows a -> Window -> X (Maybe (HiddenWindows a))
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hideWindowMsg (HiddenWindows hidden) win = do
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modify (\s -> s { windowset = W.delete' win $ windowset s })
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return . Just . HiddenWindows $ hidden ++ [win]
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--------------------------------------------------------------------------------
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popNewestMsg :: HiddenWindows a -> X (Maybe (HiddenWindows a))
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popNewestMsg (HiddenWindows []) = return Nothing
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popNewestMsg (HiddenWindows hidden) = do
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let (win, rest) = (last hidden, init hidden)
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restoreWindow win
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return . Just . HiddenWindows $ rest
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--------------------------------------------------------------------------------
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popOldestMsg :: HiddenWindows a -> X (Maybe (HiddenWindows a))
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popOldestMsg (HiddenWindows []) = return Nothing
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popOldestMsg (HiddenWindows (win:rest)) = do
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restoreWindow win
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return . Just . HiddenWindows $ rest
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--------------------------------------------------------------------------------
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popSpecificMsg :: Window -> HiddenWindows a -> X (Maybe (HiddenWindows a))
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popSpecificMsg _ (HiddenWindows []) = return Nothing
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popSpecificMsg win (HiddenWindows hiddenWins) = if win `elem` hiddenWins
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then do
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restoreWindow win
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return . Just . HiddenWindows $ filter (/= win) hiddenWins
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else
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return . Just . HiddenWindows $ hiddenWins
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--------------------------------------------------------------------------------
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restoreWindow :: Window -> X ()
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restoreWindow = windows . W.insertUp
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