Gotta lose that dollar sign at the end of the line beginning "myKeys". =)
Also, make sure to change workspaces to workspaces' (notice the single quote at the end), and change "windows $ f i" to "windows $ onCurrentScreen f i", as detailed in the documentation.

~d

Quoting Ola Karlsson <skalle.karlsson@gmail.com>:

Hi ~d and rest of you haskell wizards..

Long time since i felt this green at something.. :)
Did your changes and ended up with this.

import XMonad
import XMonad.Config.Gnome
import qualified Data.Map as M
import qualified XMonad.StackSet as W
import XMonad.Layout.IndependentScreens

-- myKeys conf@(XConfig {XMonad.modMask = modMask}) = M.fromList $
myKeys conf@(XConfig {XMonad.modMask = modMask}) = keys defaultConfig
`M.union` M.fromList $

--      ++
       [ ((m .|. modMask, k ), windows $ f i)
               | (i, k) <- zip (workspaces conf) [xK_1 .. xK_9]
               , (f,m) <- [(W.greedyView, 0), (W.shift, shiftMask)]]


main = xmonad gnomeConfig
       { terminal = "urxvt -rv +sb"
       , modMask = mod4Mask
       , workspaces = withScreens 2 ["Monitor" , "Work"]
       , keys = myKeys
       }

Still some hate from the compiler though:

xmonad.hs:8:51:
   Couldn't match expected type `M.Map k a'
          against inferred type `XConfig Layout
                                 -> M.Map (ButtonMask, KeySym) (X ())'
   In the first argument of `M.union', namely `keys defaultConfig'
   In the first argument of `($)', namely
       `keys defaultConfig `M.union` M.fromList'
   In the expression:
           keys defaultConfig `M.union` M.fromList
       $ [((m .|. modMask, k), windows $ f i) |
              (i, k) <- zip (workspaces conf) [xK_1 .. xK_9],
              (f, m) <- [(W.greedyView, 0), (W.shift, shiftMask)]]

Tried without the keys defaultConfig and the thing compiled fine but as
expected lost all my keys except the ch. workspace ones that still worked
like default.. :(

So a little bit stuck again ..

/Ola

On Thu, Apr 7, 2011 at 10:30 PM, <wagnerdm@seas.upenn.edu> wrote:

Great! Now that there's some code to critique, I can help a bit. =)

To fix the scoping errors:

import qualified Data.Map as M
import qualified XMonad.StackSet as W

You'll also want to make these changes:

On the line defining myKeys, make sure you keep the keys from the default
configuration:

myKeys conf@(...as before...) = keys defaultConfig `M.union` M.fromList
  [ ...as before... ]

Also, as mentioned in the documentation, you'll want to use workspaces'
instead of XMonad.workspaces when defining your keybindings, so change that
line to:
      | (i, k) <- zip (workspaces' conf) [xK_1 .. xK_9]

Additionally, I expect that IndependentScreens is mostly useless if you
have only one screen. I don't know how many screens you do have, but
assuming it's two, the line inside of main should look like this:

      , workspaces = withScreens 2 ["Monitor", "Work"]

If you have three screens, change the 2 to 3, etc. Finally, you have to
make sure to inform xmonad of your custom bindings in myKeys, so add a line
right after that like this:

      , keys = myKeys

Good luck! Let us know how it goes after these changes.
~d


Quoting Ola Karlsson <skalle.karlsson@gmail.com>:

 Hi Linux..

Thx for answering my newbie questions.. Haskell is something brand new and
strange to me so am just hacking around at random in the config.hs with
little luck..

Did read the usage part and ended up with this config...

import XMonad
import XMonad.Config.Gnome
import XMonad.Layout.IndependentScreens
myKeys conf@(XConfig {XMonad.modMask = modMask}) = M.fromList $

--      ++
    [ ((m .|. modMask, k ), windows $ f i)
            | (i, k) <- zip (XMonad.workspaces conf) [xK_1 .. xK_9]
            , (f,m) <- [(W.greedyView, 0), (W.shift, shiftMask)]]


main = xmonad gnomeConfig
      { terminal = "urxvt -rv +sb"
      , modMask = mod4Mask
      , workspaces = withScreens 1 ["Monitor" , "Work"]
      }

With this I end up with

xmonad.hs:5:51: Not in scope: `M.fromList'

xmonad.hs:10:15: Not in scope: `W.greedyView'

xmonad.hs:10:34: Not in scope: `W.shift'

And am stuck.. :(

/Ola


On Thu, Apr 7, 2011 at 3:09 PM, Linus Arver <linusarver@gmail.com> wrote:

 >    Have one problem though , Multiple Screens , can't wrap my head

around
how
>    xmonad handles that default and want to go for the way I'm used to
have it
>    work with separate workspaces for each screen..

In Xmonad, there are N workspaces (you can define as many as you like).
Most people have 9 of them, because that's the default config. I
personally have 22 workspaces (hotkeyed to modm + 1-9, F1-F12). Each
workspace can have N windows in it. Anyway, each screen (monitor) can
view any 1 workspace at a time. That's all there's to it...

>    Found the IndependentScreens thing in the documentation but can't
figure
>    out how to get it in the configuration so needs some help..

The "Usage" section at


http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Layout-IndependentScreens.html
seems to have everything you're looking for. After editing your
xmonad.hs, just run "ghci" on it: ghci xmonad.hs. If you get any errors,
then your config is messed up.

>    Could someone give me a working example of a Gnome enables xmonad
config
>    that uses IndependentScreens?

A quick google search got me this:
http://www.haskell.org/pipermail/xmonad/2009-December/009466.html
Maybe you should ask the user there about it...

Personally though, I'd just stick with the default. There are lots of
neat contrib modules out there (e.g., CycleWS) that rely on the default
setup (1 set of workspaces). You'd have to hack all of those modules to
get them working with your IndependentScreens setup.

-Linus

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