问题描述
在 XMonad 中，我有默认的配置文件。我做了一些小改动，但我试图让 alacritty 启动而不是 xterm。我试过将“myTerminal”更改为 = alacritty，但没有奏效。然后我尝试生成 alacritty，它仍然生成 xterm。
,((modm,xK_e ),spawn "alacritty")
我仍然无法启动 alacritty。但是，我可以从 dmenu 启动 alacritty。
import XMonad
import Data.Monoid
import System.Exit
import XMonad.Hooks.DynamicLog
import XMonad.Hooks.ManageDocks
import XMonad.Util.Run(spawnPipe)
import XMonad.Util.EZConfig(additionalKeys)
import XMonad.Util.SpawnOnce
import System.IO
import qualified XMonad.StackSet as W
import qualified Data.Map as M
main = do
xmproc <- spawnPipe "xmobar"
xmonad $ docks defaultConfig
{ manageHook = myManageHook <+> manageHook defaultConfig -- make sure to include myManageHook deFinition from above,layoutHook = avoidStruts $ layoutHook defaultConfig,logHook = dynamicLogWithPP xmobarPP
{ ppOutput = hPutStrLn xmproc,ppTitle = xmobarColor "green" "" . shorten 50
},modMask = mod4Mask -- Rebind Mod to the Windows key
}
-- The preferred terminal program,which is used in a binding below and by
-- certain contrib modules.
--
myTerminal = "alacritty"
-- Whether focus follows the mouse pointer.
myFocusFollowsMouse :: Bool
myFocusFollowsMouse = True
-- Whether clicking on a window to focus also passes the click to the window
myClickJustFocuses :: Bool
myClickJustFocuses = False
-- Width of the window border in pixels.
--
myBorderWidth = 2
-- 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.
--
myModMask = mod4Mask
-- 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]
--
myWorkspaces = ["1","2","3","4","5","6","7","8","9"]
-- Border colors for unfocused and focused windows,respectively.
--
mynormalBorderColor = "#dddddd"
myFocusedBorderColor = "#ff0000"
------------------------------------------------------------------------
-- Key bindings. Add,modify or remove key bindings here.
--
myKeys conf@(XConfig {XMonad.modMask = modm}) = M.fromList $
-- launch a terminal
[ ((modm .|. shiftMask,xK_Return),spawn $ XMonad.terminal conf)
-- launch dmenu,xK_p ),spawn "dmenu_run")
-- launch gmrun,((modm .|. shiftMask,spawn "gmrun")
-- close focused window,xK_c ),kill)
-- Rotate through the available layout algorithms,xK_space ),sendMessage NextLayout)
-- Reset the layouts on the current workspace to default,setLayout $ XMonad.layoutHook conf)
-- Resize viewed windows to the correct size,xK_n ),refresh)
-- Move focus to the next window,xK_Tab ),windows W.focusDown)
-- Move focus to the next window,xK_j ),windows W.focusDown)
-- Move focus to the prevIoUs window,xK_k ),windows W.focusUp )
-- Move focus to the master window,xK_m ),windows W.focusMaster )
-- Swap the focused window and the master window,windows W.swapMaster)
-- Swap the focused window with the next window,windows W.swapDown )
-- Swap the focused window with the prevIoUs window,windows W.swapUp )
-- Shrink the master area,xK_h ),sendMessage Shrink)
-- Expand the master area,xK_l ),sendMessage Expand)
-- Push window back into tiling,xK_t ),withFocused $ windows . W.sink)
-- Increment the number of windows in the master area,xK_comma ),sendMessage (IncMasterN 1))
-- Deincrement the number of windows in the master area,xK_period),sendMessage (IncMasterN (-1)))
-- Toggle the status bar gap
-- Use this binding with avoidStruts from Hooks.ManageDocks.
-- See also the statusBar function from Hooks.DynamicLog.
--
--,xK_b ),sendMessage ToggleStruts)
-- Quit xmonad,xK_q ),io (exitWith ExitSuccess))
-- Restart xmonad,spawn "xmonad --recompile; xmonad --restart")
-- Run xmessage with a summary of the default keybindings (useful for beginners),xK_slash ),spawn ("echo \"" ++ help ++ "\" | xmessage -file -"))
]
++
--
-- mod-[1..9],Switch to workspace N
-- mod-shift-[1..9],Move client to workspace N
--
[((m .|. modm,k),windows $ f i)
| (i,k) <- zip (XMonad.workspaces conf) [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,Move client to screen 1,or 3
--
[((m .|. modm,key),screenWorkspace sc >>= flip whenJust (windows . f))
| (key,sc) <- zip [xK_w,xK_e,xK_r] [0..],m) <- [(W.view,shiftMask)]]
------------------------------------------------------------------------
-- Mouse bindings: default actions bound to mouse events
--
myMouseBindings (XConfig {XMonad.modMask = modm}) = M.fromList $
-- mod-button1,Set the window to floating mode and move by dragging
[ ((modm,button1),(\w -> focus w >> mouseMoveWindow w
>> windows W.shiftMaster))
-- mod-button2,Raise the window to the top of the stack,button2),(\w -> focus w >> windows W.shiftMaster))
-- mod-button3,Set the window to floating mode and resize by dragging,button3),(\w -> focus w >> mouseResizeWindow w
>> windows W.shiftMaster))
-- you may also bind events to the mouse scroll wheel (button4 and button5)
]
------------------------------------------------------------------------
-- 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.
--
myLayout = tiled ||| Mirror tiled ||| Full
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
------------------------------------------------------------------------
-- 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.
--
-- To match on the WM_NAME,you can use 'title' in the same way that
-- 'className' and 'resource' are used below.
--
myManageHook = composeAll
[ className =? "MPlayer" --> doFloat,className =? "Gimp" --> doFloat,resource =? "desktop_window" --> doIgnore,resource =? "kdesktop" --> doIgnore ]
------------------------------------------------------------------------
-- Event handling
-- * EwmhDesktops users should change this to ewmhDesktopsEventHook
--
-- Defines a custom handler function for X Events. The function should
-- return (All True) if the default handler is to be run afterwards. To
-- combine event hooks use mappend or mconcat from Data.Monoid.
--
myEventHook = mempty
------------------------------------------------------------------------
-- Status bars and logging
-- Perform an arbitrary action on each internal state change or X event.
-- See the 'XMonad.Hooks.DynamicLog' extension for examples.
--
myLogHook = return ()
------------------------------------------------------------------------
-- Startup hook
-- Perform an arbitrary action each time xmonad starts or is restarted
-- with mod-q. Used by,e.g.,XMonad.Layout.PerWorkspace to initialize
-- per-workspace layout choices.
--
-- By default,do nothing.
myStartupHook = return ()
------------------------------------------------------------------------
-- Now run xmonad with all the defaults we set up.
-- Run xmonad with the settings you specify. No need to modify this.
--
--main = xmonad defaults
-- A structure containing your configuration settings,overriding
-- fields in the default config. Any you don't override,will
-- use the defaults defined in xmonad/XMonad/Config.hs
--
-- No need to modify this.
--
defaults = def {
-- simple stuff
terminal = myTerminal,focusFollowsMouse = myFocusFollowsMouse,clickJustFocuses = myClickJustFocuses,borderWidth = myBorderWidth,modMask = myModMask,workspaces = myWorkspaces,normalBorderColor = mynormalBorderColor,focusedBorderColor = myFocusedBorderColor,-- key bindings
keys = myKeys,mouseBindings = myMouseBindings,-- hooks,layouts
layoutHook = myLayout,manageHook = myManageHook,handleEventHook = myEventHook,logHook = myLogHook,startupHook = myStartupHook
}
这是我的 xmonad.hs 文件。
解决方法
在您的 xmonad.hs 中，the example configuration file 中的 main 被注释掉了...
-- Now run xmonad with all the defaults we set up.
-- Run xmonad with the settings you specify. No need to modify this.
--
--main = xmonad defaults
...并替换为：
main = do
xmproc <- spawnPipe "xmobar"
xmonad $ docks defaultConfig
{ manageHook = myManageHook <+> manageHook defaultConfig -- make sure to include myManageHook definition from above,layoutHook = avoidStruts $ layoutHook defaultConfig,logHook = dynamicLogWithPP xmobarPP
{ ppOutput = hPutStrLn xmproc,ppTitle = xmobarColor "green" "" . shorten 50
},modMask = mod4Mask -- Rebind Mod to the Windows key
}
不过，您的替换 main 不使用文件中其他位置定义的 defaults 配置记录。这就是为什么您对 myKeys（用作 defaults 的字段）所做的任何更改都没有任何效果。用 defaultConfig 替换 defaults 应该可以解决这个问题：
main = do
xmproc <- spawnPipe "xmobar"
xmonad $ docks defaults
{ manageHook = myManageHook <+> manageHook defaultConfig -- Left unchanged on purpose,layoutHook = avoidStruts $ myLayoutHook,ppTitle = xmobarColor "green" "" . shorten 50
}
}
请注意，就您的 xmonad.hs 的组织而言，直接在 main 中定义配置字段并通过合并到 defaults 中的各种值来定义配置字段有点尴尬。这可以通过进一步重新组织配置来避免。不过，如果这真的让您感到困扰，我建议您从最小的 xmonad.hs 重新开始，并且只重新定义您真正想要更改的设置。