Configs that apply WorkspaceId transformations, such as
IndependentScreens (adding/removing a screen-number prefix) and
NamedWorkspaces (adding/removing a name suffix), cannot use clickablePP
as is, since they need to apply clickableWrap to an appropriately
transformed WorkspaceId. Rather than force them to reimpliment
clickableWrap, export it.
An example use-case, where IndependentScreens has added a screen number
prefix to the workspace ids (0_1, 0_2, ...), and we want a status-bar
that shows the ids without screen number (1, 2, ...), but also makes
them clickable:
getClickable :: (WorkspaceId -> WorkspaceId) -> X (WorkspaceId -> String)
getClickable f = do
wsIndex <- getWsIndex
pure $ \ws -> case wsIndex (f ws) of
Just idx -> clickableWrap idx ws
Nothing -> ws
composePP :: PP -> ScreenId -> X PP
composePP pp s = do
clickable <- getClickable (marshall s)
return
. marshallPP s
$ pp
{ ppCurrent = ppCurrent pp . clickable,
ppVisible = ppVisible pp . clickable,
ppHidden = ppHidden pp . clickable,
ppHiddenNoWindows = ppHiddenNoWindows pp . clickable,
ppUrgent = ppUrgent pp . clickable
}
The current handle returned by `spawnPipe` doesn't have any encoding
and it uses the function fdToHandle which returns a Binary
Handle. When spawnPipe is used with a program like xmobar, this can
easily lead to errors:
λ> h <- spawnPipe "xmobar"
λ> hPutStrLn h
"\35753Haskell\25110\32773Ghci\33021\27491\30830\26174\31034\27721\23383\24182\19988\35835\21462\27721\23383\21629\21517\30340\25991\26723"
<stdin>: hGetLine: invalid argument (invalid byte sequence)
One workaround, to avoid this is to use `hSetEncoding`. But from
reading GHC's source code - the entire Handle and write operations
seems stateful. So doing something like hPutStr and hSetEncoding can
theoretically lead to an undefined state as the first write will use
latin encoding and the second write will use the new encoding. More
details about it are present here:
* http://hackage.haskell.org/package/base-4.12.0.0/docs/src/GHC.IO.Handle.Internals.html#writeCharBuffer
* http://hackage.haskell.org/package/base-4.12.0.0/docs/src/GHC.IO.Buffer.html#CharBuffer
So having these new functions will ensure that we get the handles in
the proper encoding in the first place.
This change needs base-4.9.0.0 or later so that we can
include Control.Monad.Fail. We could jump through hoops to
support older compilers still, but it feels like it's not
worthwhile.
* Explicitly import pure, (<$>), (<*>) and (<$) from Control.Applicative.
* Use DeriveDataTypeable pragma.
* Remove type signature from pattern synonym.
Now when using getSortByXineramaPhysicalRule and all helper given by
Actions.PhysicalScreens the user have to provide a screen comparator that can
compare screen using their id or/and their coordinate.
menuArgs breaks compilation on GHC < 7.10 because it uses fmap but
only has a MonadIO constraint.
Functor was not a superclass of Monad until GHC 7.10.
This module provides a way to query the session startup.
Currently the flag has to be set by calling setSessionStarted in
the startupHook. The goal would be to merge this into xmonad at some
point and set the flag when the state file is read in, and remove the
need to manually set it.
MonadIO is compatible with xfork which prevents dmenu prompts from
freezing XMonad.
Without xfork, if I try to give focus to another window while dmenu is
waiting, XMonad freezes until I kill dmenu in virtual terminal or ssh
session.
* Use global state instead of per-layout - so now window is minimized on
all workspaces (EWMH requires that windows with _NET_WM_STATE_HIDDEN
set should be minimized on any workspace but previously they were not)
* Use `windows` instead of `modify`. That should fix bugs related to
actions that should be done by `windows` and not done by
`modify` (fixes#46)
* Mark module X.H.RestoreMinimized as deprecated
