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+-----------------------------------------------------------------------------
+-- |
+-- Module : DefaultConfig.hs
+-- Copyright : (c) Spencer Janssen 2007
+-- License : BSD3-style (see LICENSE)
+--
+-- Maintainer : dons@galois.com
+-- Stability : stable
+-- Portability : portable
+--
+-- This module specifies configurable defaults for xmonad. If you change
+-- values here, be sure to recompile and restart (mod-q) xmonad,
+-- for the changes to take effect.
+--
+------------------------------------------------------------------------
+
+module XMonad.DefaultConfig (defaultConfig) where
+
+--
+-- Useful imports
+--
+import Control.Monad.Reader ( asks )
+import XMonad hiding (workspaces, manageHook, numlockMask)
+import qualified XMonad (workspaces, manageHook, numlockMask)
+import XMonad.Layouts
+import XMonad.Operations
+import qualified XMonad.StackSet as W
+import Data.Ratio
+import Data.Bits ((.|.))
+import qualified Data.Map as M
+import System.Exit
+import Graphics.X11.Xlib
+
+-- % Extension-provided imports
+
+-- | The default number of workspaces (virtual screens) and their names.
+-- By default we use numeric strings, but any string may be used as a
+-- workspace name. The number of workspaces is determined by the length
+-- of this list.
+--
+-- A tagging example:
+--
+-- > workspaces = ["web", "irc", "code" ] ++ map show [4..9]
+--
+workspaces :: [WorkspaceId]
+workspaces = map show [1 .. 9 :: Int]
+
+-- | modMask lets you specify which modkey you want to use. The default
+-- is mod1Mask ("left alt"). You may also consider using mod3Mask
+-- ("right alt"), which does not conflict with emacs keybindings. The
+-- "windows key" is usually mod4Mask.
+--
+modMask :: KeyMask
+modMask = mod1Mask
+
+-- | The mask for the numlock key. Numlock status is "masked" from the
+-- current modifier status, so the keybindings will work with numlock on or
+-- off. You may need to change this on some systems.
+--
+-- You can find the numlock modifier by running "xmodmap" and looking for a
+-- modifier with Num_Lock bound to it:
+--
+-- > $ xmodmap | grep Num
+-- > mod2 Num_Lock (0x4d)
+--
+-- Set numlockMask = 0 if you don't have a numlock key, or want to treat
+-- numlock status separately.
+--
+numlockMask :: KeyMask
+numlockMask = mod2Mask
+
+-- | Default offset of drawable screen boundaries from each physical
+-- screen. Anything non-zero here will leave a gap of that many pixels
+-- on the given edge, on the that screen. A useful gap at top of screen
+-- for a menu bar (e.g. 15)
+--
+-- An example, to set a top gap on monitor 1, and a gap on the bottom of
+-- monitor 2, you'd use a list of geometries like so:
+--
+-- > defaultGaps = [(18,0,0,0),(0,18,0,0)] -- 2 gaps on 2 monitors
+--
+-- Fields are: top, bottom, left, right.
+--
+--defaultGaps :: [(Int,Int,Int,Int)]
+
+
+------------------------------------------------------------------------
+-- Window rules
+
+-- | Execute arbitrary actions and WindowSet manipulations when managing
+-- a new window. You can use this to, for example, always float a
+-- particular program, or have a client always appear on a particular
+-- workspace.
+--
+-- To find the property name associated with a program, use
+-- xprop | grep WM_CLASS
+-- and click on the client you're interested in.
+--
+manageHook :: Window -- ^ the new window to manage
+ -> String -- ^ window title
+ -> String -- ^ window resource name
+ -> String -- ^ window resource class
+ -> X (WindowSet -> WindowSet)
+
+-- Always float various programs:
+manageHook w _ _ c | c `elem` floats = fmap (W.float w . snd) (floatLocation w)
+ where floats = ["MPlayer", "Gimp"]
+
+-- Desktop panels and dock apps should be ignored by xmonad:
+manageHook w _ n _ | n `elem` ignore = reveal w >> return (W.delete w)
+ where ignore = ["gnome-panel", "desktop_window", "kicker", "kdesktop"]
+
+-- Automatically send Firefox windows to the "web" workspace:
+-- If a workspace named "web" doesn't exist, the window will appear on the
+-- current workspace.
+manageHook _ _ "Gecko" _ = return $ W.shift "web"
+
+-- The default rule: return the WindowSet unmodified. You typically do not
+-- want to modify this line.
+manageHook _ _ _ _ = return id
+
+------------------------------------------------------------------------
+-- Extensible layouts
+--
+-- You can specify and transform your layouts by modifying these values.
+-- If you change layout bindings be sure to use 'mod-shift-space' after
+-- restarting (with 'mod-q') to reset your layout state to the new
+-- defaults, as xmonad preserves your old layout settings by default.
+--
+
+-- | The available layouts. Note that each layout is separated by |||, which
+-- denotes layout choice.
+layout = tiled ||| Mirror tiled ||| Full
+ -- Add extra layouts you want to use here:
+ -- % Extension-provided layouts
+ where
+ -- default tiling algorithm partitions the screen into two panes
+ tiled = Tall nmaster delta ratio
+
+ -- The default number of windows in the master pane
+ nmaster = 1
+
+ -- Default proportion of screen occupied by master pane
+ ratio = 1%2
+
+ -- Percent of screen to increment by when resizing panes
+ delta = 3%100
+
+------------------------------------------------------------------------
+-- Key bindings:
+
+-- | The xmonad key bindings. Add, modify or remove key bindings here.
+--
+-- (The comment formatting character is used when generating the manpage)
+--
+keys :: M.Map (KeyMask, KeySym) (X ())
+keys = M.fromList $
+ -- launching and killing programs
+ [ ((modMask .|. shiftMask, xK_Return), asks (terminal . config) >>= spawn) -- %! Launch terminal
+ , ((modMask, xK_p ), spawn "exe=`dmenu_path | dmenu` && eval \"exec $exe\"") -- %! Launch dmenu
+ , ((modMask .|. shiftMask, xK_p ), spawn "gmrun") -- %! Launch gmrun
+ , ((modMask .|. shiftMask, xK_c ), kill) -- %! Close the focused window
+
+ , ((modMask, xK_space ), sendMessage NextLayout) -- %! Rotate through the available layout algorithms
+ , ((modMask .|. shiftMask, xK_space ), setLayout $ Layout layout) -- %! Reset the layouts on the current workspace to default
+
+ , ((modMask, xK_n ), refresh) -- %! Resize viewed windows to the correct size
+
+ -- move focus up or down the window stack
+ , ((modMask, xK_Tab ), windows W.focusDown) -- %! Move focus to the next window
+ , ((modMask, xK_j ), windows W.focusDown) -- %! Move focus to the next window
+ , ((modMask, xK_k ), windows W.focusUp ) -- %! Move focus to the previous window
+ , ((modMask, xK_m ), windows W.focusMaster ) -- %! Move focus to the master window
+
+ -- modifying the window order
+ , ((modMask, xK_Return), windows W.swapMaster) -- %! Swap the focused window and the master window
+ , ((modMask .|. shiftMask, xK_j ), windows W.swapDown ) -- %! Swap the focused window with the next window
+ , ((modMask .|. shiftMask, xK_k ), windows W.swapUp ) -- %! Swap the focused window with the previous window
+
+ -- resizing the master/slave ratio
+ , ((modMask, xK_h ), sendMessage Shrink) -- %! Shrink the master area
+ , ((modMask, xK_l ), sendMessage Expand) -- %! Expand the master area
+
+ -- floating layer support
+ , ((modMask, xK_t ), withFocused $ windows . W.sink) -- %! Push window back into tiling
+
+ -- increase or decrease number of windows in the master area
+ , ((modMask , xK_comma ), sendMessage (IncMasterN 1)) -- %! Increment the number of windows in the master area
+ , ((modMask , xK_period), sendMessage (IncMasterN (-1))) -- %! Deincrement the number of windows in the master area
+
+ -- toggle the status bar gap
+ , ((modMask , xK_b ), modifyGap (\i n -> let x = (defaultGaps defaultConfig ++ repeat (0,0,0,0)) !! i in if n == x then (0,0,0,0) else x)) -- %! Toggle the status bar gap
+
+ -- quit, or restart
+ , ((modMask .|. shiftMask, xK_q ), io (exitWith ExitSuccess)) -- %! Quit xmonad
+ , ((modMask , xK_q ), broadcastMessage ReleaseResources >> restart Nothing True) -- %! Restart xmonad
+
+ -- % Extension-provided key bindings
+ ]
+ ++
+ -- mod-[1..9] %! Switch to workspace N
+ -- mod-shift-[1..9] %! Move client to workspace N
+ [((m .|. modMask, k), windows $ f i)
+ | (i, k) <- zip workspaces [xK_1 .. xK_9]
+ , (f, m) <- [(W.greedyView, 0), (W.shift, shiftMask)]]
+ ++
+ -- mod-{w,e,r} %! Switch to physical/Xinerama screens 1, 2, or 3
+ -- mod-shift-{w,e,r} %! Move client to screen 1, 2, or 3
+ [((m .|. modMask, key), screenWorkspace sc >>= flip whenJust (windows . f))
+ | (key, sc) <- zip [xK_w, xK_e, xK_r] [0..]
+ , (f, m) <- [(W.view, 0), (W.shift, shiftMask)]]
+
+ -- % Extension-provided key bindings lists
+
+-- | Mouse bindings: default actions bound to mouse events
+--
+mouseBindings :: M.Map (KeyMask, Button) (Window -> X ())
+mouseBindings = M.fromList $
+ -- mod-button1 %! Set the window to floating mode and move by dragging
+ [ ((modMask, button1), (\w -> focus w >> mouseMoveWindow w))
+ -- mod-button2 %! Raise the window to the top of the stack
+ , ((modMask, button2), (\w -> focus w >> windows W.swapMaster))
+ -- mod-button3 %! Set the window to floating mode and resize by dragging
+ , ((modMask, button3), (\w -> focus w >> mouseResizeWindow w))
+ -- you may also bind events to the mouse scroll wheel (button4 and button5)
+
+ -- % Extension-provided mouse bindings
+ ]
+
+-- % Extension-provided definitions
+
+defaultConfig :: XConfig
+defaultConfig = XConfig { borderWidth = 1 -- Width of the window border in pixels.
+ , XMonad.workspaces = workspaces
+ , defaultGaps = [(0,0,0,0)] -- 15 for default dzen font
+ -- | The top level layout switcher. Most users will not need to modify this binding.
+ --
+ -- By default, we simply switch between the layouts listed in `layouts'
+ -- above, but you may program your own selection behaviour here. Layout
+ -- transformers, for example, would be hooked in here.
+ --
+ , layoutHook = Layout layout
+ , terminal = "xterm" -- The preferred terminal program.
+ , normalBorderColor = "#dddddd" -- Border color for unfocused windows.
+ , focusedBorderColor = "#ff0000" -- Border color for focused windows.
+ , XMonad.numlockMask = numlockMask
+ , XMonad.keys = XMonad.DefaultConfig.keys
+ , XMonad.mouseBindings = XMonad.DefaultConfig.mouseBindings
+ -- | Perform an arbitrary action on each internal state change or X event.
+ -- Examples include:
+ -- * do nothing
+ -- * log the state to stdout
+ --
+ -- See the 'DynamicLog' extension for examples.
+ , logHook = return ()
+ , XMonad.manageHook = manageHook
+ }