xmonad-contrib-0.17.1: Community-maintained extensions for xmonad
CopyrightDevin Mullins <devin.mullins@gmail.com>
LicenseBSD-style (see LICENSE)
MaintainerDevin Mullins <devin.mullins@gmail.com>
Stabilityunstable
Portabilityunportable
Safe HaskellSafe-Inferred
LanguageHaskell2010

XMonad.Config.Prime

Description

Deprecated: This module is a perpetual draft and will therefore be removed from xmonad-contrib in the near future.

This is a draft of a brand new config syntax for xmonad. It aims to be:

  • easier to copy/paste snippets from the docs
  • easier to get the gist for what's going on, for you imperative programmers

It's brand new, so it's pretty much guaranteed to break or change syntax. But what's the worst that could happen? Xmonad crashes and logs you out? It probably won't do that. Give it a try.

Synopsis

Start here

To start with, create a ~/.xmonad/xmonad.hs that looks like this:

{-# LANGUAGE RebindableSyntax #-}
import XMonad.Config.Prime

-- Imports go here.

main = xmonad $ do
  nothing
  -- Configs go here.

This will give you a default xmonad install, with room to grow. The lines starting with double dashes are comments. You may delete them. Note that Haskell is a bit precise about indentation. Make sure all the statements in your do-block start at the same column, and make sure that any multi-line statements are formatted with a hanging indent. (For an example, see the 'keys =+' statement in the Example config section, below.)

After changing your config file, restart xmonad with mod-q (where, by default, "mod" == "alt").

xmonad :: (Default a, Read (l Window), LayoutClass l Window) => (a -> IO (XConfig l)) -> IO () Source #

This is the xmonad main function. It passes def (the default XConfig) into your do-block, takes the modified config out of your do-block, and then runs xmonad.

The do-block is a Prime. Advanced readers can skip right to that definition.

nothing :: Prime l l Source #

This doesn't modify the config in any way. It's just here for your initial config because Haskell doesn't allow empty do-blocks. Feel free to delete it once you've added other stuff.

Attributes you can set

These are a bunch of attributes that you can set. Syntax looks like this:

  terminal =: "urxvt"

Strings are double quoted, Dimensions are unquoted integers, booleans are True or False (case-sensitive), and modMask is usually mod1Mask or mod4Mask.

normalBorderColor :: Settable String (XConfig l) Source #

Non-focused windows border color. Default: "#dddddd"

focusedBorderColor :: Settable String (XConfig l) Source #

Focused windows border color. Default: "#ff0000"

terminal :: Settable String (XConfig l) Source #

The preferred terminal application. Default: "xterm"

modMask :: Settable KeyMask (XConfig l) Source #

The mod modifier, as used by key bindings. Default: mod1Mask (which is probably alt on your computer).

borderWidth :: Settable Dimension (XConfig l) Source #

The border width (in pixels). Default: 1

focusFollowsMouse :: Settable Bool (XConfig l) Source #

Whether window focus follows the mouse cursor on move, or requires a mouse click. (Mouse? What's that?) Default: True

clickJustFocuses :: Settable Bool (XConfig l) Source #

If True, a mouse click on an inactive window focuses it, but the click is not passed to the window. If False, the click is also passed to the window. Default True

class SettableClass s x y | s -> x y where Source #

Methods

(=:) :: s c -> y -> Arr c c Source #

This lets you modify an attribute.

Instances

Instances details
UpdateableClass s x y => SettableClass s x y Source # 
Instance details

Defined in XMonad.Config.Prime

Methods

(=:) :: s c -> y -> Arr c c Source #

class UpdateableClass s x y | s -> x y where Source #

Methods

(=.) :: s c -> (x -> y) -> Arr c c Source #

This lets you apply a function to an attribute (i.e. read, modify, write).

Attributes you can add to

In addition to being able to set these attributes, they have a special syntax for being able to add to them. The operator is =+ (the plus comes after the equals), but each attribute has a different syntax for what comes after the operator.

manageHook :: Summable ManageHook ManageHook (XConfig l) Source #

The action to run when a new window is opened. Default:

  manageHook =: composeAll [className =? "MPlayer" --> doFloat, className =? "Gimp" --> doFloat]

To add more rules to this list, you can say, for instance:

import XMonad.StackSet
...
  manageHook =+ (className =? "Emacs" --> doF kill)
  manageHook =+ (className =? "Vim" --> doF shiftMaster)

Note that operator precedence mandates the parentheses here.

handleEventHook :: Summable (Event -> X All) (Event -> X All) (XConfig l) Source #

Custom X event handler. Return All True if the default handler should also be run afterwards. Default does nothing. To add an event handler:

import XMonad.Hooks.ServerMode
...
  handleEventHook =+ serverModeEventHook

workspaces :: Summable [String] [String] (XConfig l) Source #

List of workspaces' names. Default: map show [1 .. 9 :: Int]. Adding appends to the end:

  workspaces =+ ["0"]

This is useless unless you also create keybindings for this.

logHook :: Summable (X ()) (X ()) (XConfig l) Source #

The action to perform when the windows set is changed. This happens whenever focus change, a window is moved, etc. logHook =+ takes an X () and appends it via (>>). For instance:

import XMonad.Hooks.ICCCMFocus
...
  logHook =+ takeTopFocus

Note that if your expression is parametrically typed (e.g. of type MonadIO m => m ()), you'll need to explicitly annotate it, like so:

  logHook =+ (io $ putStrLn "Hello, world!" :: X ())

startupHook :: Summable (X ()) (X ()) (XConfig l) Source #

The action to perform on startup. startupHook =+ takes an X () and appends it via (>>). For instance:

import XMonad.Hooks.SetWMName
...
  startupHook =+ setWMName "LG3D"

Note that if your expression is parametrically typed (e.g. of type MonadIO m => m ()), you'll need to explicitly annotate it, as documented in logHook.

clientMask :: Summable EventMask EventMask (XConfig l) Source #

The client events that xmonad is interested in. This is useful in combination with handleEventHook. Default: structureNotifyMask .|. enterWindowMask .|. propertyChangeMask

  clientMask =+ keyPressMask .|. keyReleaseMask

rootMask :: Summable EventMask EventMask (XConfig l) Source #

The root events that xmonad is interested in. This is useful in combination with handleEventHook. Default: substructureRedirectMask .|. substructureNotifyMask .|. enterWindowMask .|. leaveWindowMask .|. structureNotifyMask .|. buttonPressMask

class SummableClass s y | s -> y where Source #

Methods

(=+) :: s c -> y -> Arr c c infix 0 Source #

This lets you add to an attribute.

Attributes you can add to or remove from

The following support the the =+ for adding items and the =- operator for removing items.

keys :: Keys (XConfig l) Source #

Key bindings to X actions. Default: see `man xmonad`. keys takes a list of keybindings specified emacs-style, as documented in mkKeyMap. For example, to change the "kill window" key:

  keys =- ["M-S-c"]
  keys =+ [("M-M1-x", kill)]

mouseBindings :: MouseBindings (XConfig l) Source #

Mouse button bindings to an X actions on a window. Default: see `man xmonad`. To make mod-scrollwheel switch workspaces:

import XMonad.Actions.CycleWS (nextWS, prevWS)
...
  mouseBindings =+ [((mod4Mask, button4), const prevWS),
                    ((mod4Mask, button5), const nextWS)]

Note that you need to specify the numbered mod-mask e.g. mod4Mask instead of just modMask.

class RemovableClass r y | r -> y where Source #

Methods

(=-) :: r c -> y -> Arr c c infix 0 Source #

This lets you remove from an attribute.

Modifying the list of workspaces

Workspaces can be configured through workspaces, but then the keys need to be set, and this can be a bit laborious. withWorkspaces provides a convenient mechanism for common workspace updates.

withWorkspaces :: Arr WorkspaceConfig WorkspaceConfig -> Prime l l Source #

Configure workspaces through a Prime-like interface. Example:

  withWorkspaces $ do
    wsKeys =+ ["0"]
    wsActions =+ [("M-M1-", windows . swapWithCurrent)]
    wsSetName 1 "mail"

This will set workspaces and add the necessary keybindings to keys. Note that it won't remove old keybindings; it's just not that clever.

wsNames :: Settable [String] WorkspaceConfig Source #

The list of workspace names, like workspaces but with two differences:

  1. If any entry is the empty string, it'll be replaced with the corresponding entry in wsKeys.
  2. The list is truncated to the size of wsKeys.

The default value is repeat "".

If you'd like to create workspaces without associated keyspecs, you can do that afterwards, outside the withWorkspaces block, with workspaces =+.

wsKeys :: Summable [String] [String] WorkspaceConfig Source #

The list of workspace keys. These are combined with the modifiers in wsActions to form the keybindings for navigating to workspaces. Default: ["1","2",...,"9"].

wsActions :: Summable [(String, String -> X ())] [(String, String -> X ())] WorkspaceConfig Source #

Mapping from key prefix to command. Its type is [(String, String -> X())]. The key prefix may be a modifier such as "M-", or a submap prefix such as "M-a ", or both, as in "M-a M-". The command is a function that takes a workspace name and returns an X (). withWorkspaces creates keybindings for the cartesian product of wsKeys and wsActions.

Default:

[("M-", windows . W.greedyView),
 ("M-S-", windows . W.shift)]

wsSetName :: Int -> String -> Arr WorkspaceConfig WorkspaceConfig Source #

A convenience for just modifying one entry in wsNames, in case you only want a few named workspaces. Example:

    wsSetName 1 "mail"
    wsSetName 2 "web"

Modifying the screen keybindings

withScreens provides a convenient mechanism to set keybindings for moving between screens, much like withWorkspaces.

withScreens :: Arr ScreenConfig ScreenConfig -> Prime l l Source #

Configure screen keys through a Prime-like interface:

  withScreens $ do
    sKeys =: ["e", "r"]

This will add the necessary keybindings to keys. Note that it won't remove old keybindings; it's just not that clever.

sKeys :: Summable [String] [String] ScreenConfig Source #

The list of screen keys. These are combined with the modifiers in sActions to form the keybindings for navigating to workspaces. Default: ["w","e","r"].

sActions :: Summable [(String, ScreenId -> X ())] [(String, ScreenId -> X ())] ScreenConfig Source #

Mapping from key prefix to command. Its type is [(String, ScreenId -> X())]. Works the same as wsActions except for a different function type.

Default:

[("M-", windows . onScreens W.view),
 ("M-S-", windows . onScreens W.shift)]

onScreens :: Eq s => (i -> StackSet i l a s sd -> StackSet i l a s sd) -> s -> StackSet i l a s sd -> StackSet i l a s sd Source #

Converts a stackset transformer parameterized on the workspace type into one parameterized on the screen type. For example, you can use onScreens W.view 0 to navigate to the workspace on the 0th screen. If the screen id is not recognized, the returned transformer acts as an identity function.

Modifying the layoutHook

Layouts are special. You can't modify them using the =: or =. operator. You need to use the following functions.

addLayout :: (LayoutClass l Window, LayoutClass r Window) => r Window -> Prime l (Choose l r) Source #

Add a layout to the list of layouts choosable with mod-space. For instance:

import XMonad.Layout.Tabbed
...
  addLayout simpleTabbed

resetLayout :: LayoutClass r Window => r Window -> Prime l r Source #

Reset the layoutHook from scratch. For instance, to get rid of the wide layout:

  resetLayout $ Tall 1 (3/100) (1/2) ||| Full

(The dollar is like an auto-closing parenthesis, so all the stuff to the right of it is treated like an argument to resetLayout.)

modifyLayout :: LayoutClass r Window => (l Window -> r Window) -> Prime l r Source #

Modify your layoutHook with some wrapper function. You probably want to call this after you're done calling addLayout. Example:

import XMonad.Layout.NoBorders
...
  modifyLayout smartBorders

Updating the XConfig en masse

Finally, there are a few contrib modules that bundle multiple attribute updates together. There are three types: 1) wholesale replacements for the default config, 2) pure functions on the config, and 3) IO actions on the config. The syntax for each is different. Examples:

1) To start with a gnomeConfig instead of the default, we use startWith:

import XMonad.Config.Gnome
...
  startWith gnomeConfig

2) withUrgencyHook is a pure function, so we need to use apply:

import XMonad.Hooks.UrgencyHook
...
  apply $ withUrgencyHook dzenUrgencyHook

3) xmobar returns an IO (XConfig l), so we need to use applyIO:

import XMonad.Hooks.DynamicLog
...
  applyIO xmobar

startWith :: XConfig l' -> Prime l l' Source #

Replace the current XConfig with the given one. If you use this, you probably want it to be the first line of your config.

apply :: (XConfig l -> XConfig l') -> Prime l l' Source #

Turns a pure function on XConfig into a Prime.

applyIO :: (XConfig l -> IO (XConfig l')) -> Prime l l' Source #

Turns an IO function on XConfig into a Prime.

The rest of the world

Everything you know and love from the core XMonad module is available for use in your config file, too.

class Typeable (a :: k) #

The class Typeable allows a concrete representation of a type to be calculated.

Minimal complete definition

typeRep#

class Monad m => MonadIO (m :: Type -> Type) where #

Monads in which IO computations may be embedded. Any monad built by applying a sequence of monad transformers to the IO monad will be an instance of this class.

Instances should satisfy the following laws, which state that liftIO is a transformer of monads:

Methods

liftIO :: IO a -> m a #

Lift a computation from the IO monad. This allows us to run IO computations in any monadic stack, so long as it supports these kinds of operations (i.e. IO is the base monad for the stack).

Example

Expand
import Control.Monad.Trans.State -- from the "transformers" library

printState :: Show s => StateT s IO ()
printState = do
  state <- get
  liftIO $ print state

Had we omitted liftIO, we would have ended up with this error:

• Couldn't match type ‘IO’ with ‘StateT s IO’
 Expected type: StateT s IO ()
   Actual type: IO ()

The important part here is the mismatch between StateT s IO () and IO ().

Luckily, we know of a function that takes an IO a and returns an (m a): liftIO, enabling us to run the program and see the expected results:

> evalStateT printState "hello"
"hello"

> evalStateT printState 3
3

Instances

Instances details
MonadIO IO

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.IO.Class

Methods

liftIO :: IO a -> IO a #

MonadIO Query 
Instance details

Defined in XMonad.Core

Methods

liftIO :: IO a -> Query a #

MonadIO X 
Instance details

Defined in XMonad.Core

Methods

liftIO :: IO a -> X a #

MonadIO FocusQuery Source # 
Instance details

Defined in XMonad.Hooks.Focus

Methods

liftIO :: IO a -> FocusQuery a #

MonadIO m => MonadIO (ListT m) 
Instance details

Defined in Control.Monad.Trans.List

Methods

liftIO :: IO a -> ListT m a #

MonadIO m => MonadIO (MaybeT m) 
Instance details

Defined in Control.Monad.Trans.Maybe

Methods

liftIO :: IO a -> MaybeT m a #

MonadIO (StateQuery s) Source # 
Instance details

Defined in XMonad.Util.WindowState

Methods

liftIO :: IO a -> StateQuery s a #

(Error e, MonadIO m) => MonadIO (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

liftIO :: IO a -> ErrorT e m a #

MonadIO m => MonadIO (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

liftIO :: IO a -> ExceptT e m a #

MonadIO m => MonadIO (IdentityT m) 
Instance details

Defined in Control.Monad.Trans.Identity

Methods

liftIO :: IO a -> IdentityT m a #

MonadIO m => MonadIO (ReaderT r m) 
Instance details

Defined in Control.Monad.Trans.Reader

Methods

liftIO :: IO a -> ReaderT r m a #

MonadIO m => MonadIO (StateT s m) 
Instance details

Defined in Control.Monad.Trans.State.Lazy

Methods

liftIO :: IO a -> StateT s m a #

MonadIO m => MonadIO (StateT s m) 
Instance details

Defined in Control.Monad.Trans.State.Strict

Methods

liftIO :: IO a -> StateT s m a #

(Monoid w, MonadIO m) => MonadIO (WriterT w m) 
Instance details

Defined in Control.Monad.Trans.Writer.Lazy

Methods

liftIO :: IO a -> WriterT w m a #

(Monoid w, MonadIO m) => MonadIO (WriterT w m) 
Instance details

Defined in Control.Monad.Trans.Writer.Strict

Methods

liftIO :: IO a -> WriterT w m a #

MonadIO m => MonadIO (ContT r m) 
Instance details

Defined in Control.Monad.Trans.Cont

Methods

liftIO :: IO a -> ContT r m a #

(Monoid w, MonadIO m) => MonadIO (RWST r w s m) 
Instance details

Defined in Control.Monad.Trans.RWS.Lazy

Methods

liftIO :: IO a -> RWST r w s m a #

(Monoid w, MonadIO m) => MonadIO (RWST r w s m) 
Instance details

Defined in Control.Monad.Trans.RWS.Strict

Methods

liftIO :: IO a -> RWST r w s m a #

(.|.) :: Bits a => a -> a -> a infixl 5 #

Bitwise "or"

class Monad m => MonadState s (m :: Type -> Type) | m -> s where #

Minimal definition is either both of get and put or just state

Minimal complete definition

state | get, put

Methods

get :: m s #

Return the state from the internals of the monad.

put :: s -> m () #

Replace the state inside the monad.

state :: (s -> (a, s)) -> m a #

Embed a simple state action into the monad.

Instances

Instances details
MonadState XState X 
Instance details

Defined in XMonad.Core

Methods

get :: X XState #

put :: XState -> X () #

state :: (XState -> (a, XState)) -> X a #

MonadState XState PureX Source # 
Instance details

Defined in XMonad.Util.PureX

Methods

get :: PureX XState #

put :: XState -> PureX () #

state :: (XState -> (a, XState)) -> PureX a #

MonadState s m => MonadState s (ListT m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: ListT m s #

put :: s -> ListT m () #

state :: (s -> (a, s)) -> ListT m a #

MonadState s m => MonadState s (MaybeT m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: MaybeT m s #

put :: s -> MaybeT m () #

state :: (s -> (a, s)) -> MaybeT m a #

(Error e, MonadState s m) => MonadState s (ErrorT e m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: ErrorT e m s #

put :: s -> ErrorT e m () #

state :: (s -> (a, s)) -> ErrorT e m a #

MonadState s m => MonadState s (ExceptT e m)

Since: mtl-2.2

Instance details

Defined in Control.Monad.State.Class

Methods

get :: ExceptT e m s #

put :: s -> ExceptT e m () #

state :: (s -> (a, s)) -> ExceptT e m a #

MonadState s m => MonadState s (IdentityT m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: IdentityT m s #

put :: s -> IdentityT m () #

state :: (s -> (a, s)) -> IdentityT m a #

MonadState s m => MonadState s (ReaderT r m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: ReaderT r m s #

put :: s -> ReaderT r m () #

state :: (s -> (a, s)) -> ReaderT r m a #

Monad m => MonadState s (StateT s m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: StateT s m s #

put :: s -> StateT s m () #

state :: (s -> (a, s)) -> StateT s m a #

Monad m => MonadState s (StateT s m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: StateT s m s #

put :: s -> StateT s m () #

state :: (s -> (a, s)) -> StateT s m a #

(Monoid w, MonadState s m) => MonadState s (WriterT w m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: WriterT w m s #

put :: s -> WriterT w m () #

state :: (s -> (a, s)) -> WriterT w m a #

(Monoid w, MonadState s m) => MonadState s (WriterT w m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: WriterT w m s #

put :: s -> WriterT w m () #

state :: (s -> (a, s)) -> WriterT w m a #

MonadState s m => MonadState s (ContT r m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: ContT r m s #

put :: s -> ContT r m () #

state :: (s -> (a, s)) -> ContT r m a #

(Monad m, Monoid w) => MonadState s (RWST r w s m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: RWST r w s m s #

put :: s -> RWST r w s m () #

state :: (s -> (a, s)) -> RWST r w s m a #

(Monad m, Monoid w) => MonadState s (RWST r w s m) 
Instance details

Defined in Control.Monad.State.Class

Methods

get :: RWST r w s m s #

put :: s -> RWST r w s m () #

state :: (s -> (a, s)) -> RWST r w s m a #

MonadState (TwoDState a) (TwoD a) Source # 
Instance details

Defined in XMonad.Actions.GridSelect

Methods

get :: TwoD a (TwoDState a) #

put :: TwoDState a -> TwoD a () #

state :: (TwoDState a -> (a0, TwoDState a)) -> TwoD a a0 #

(Show s, Read s, Typeable s) => MonadState (Maybe s) (StateQuery s) Source #

Instance of MonadState for StateQuery.

Instance details

Defined in XMonad.Util.WindowState

Methods

get :: StateQuery s (Maybe s) #

put :: Maybe s -> StateQuery s () #

state :: (Maybe s -> (a, Maybe s)) -> StateQuery s a #

modify :: MonadState s m => (s -> s) -> m () #

Monadic state transformer.

Maps an old state to a new state inside a state monad. The old state is thrown away.

     Main> :t modify ((+1) :: Int -> Int)
     modify (...) :: (MonadState Int a) => a ()

This says that modify (+1) acts over any Monad that is a member of the MonadState class, with an Int state.

gets :: MonadState s m => (s -> a) -> m a #

Gets specific component of the state, using a projection function supplied.

class Monad m => MonadReader r (m :: Type -> Type) | m -> r where #

See examples in Control.Monad.Reader. Note, the partially applied function type (->) r is a simple reader monad. See the instance declaration below.

Minimal complete definition

(ask | reader), local

Methods

ask :: m r #

Retrieves the monad environment.

local #

Arguments

:: (r -> r)

The function to modify the environment.

-> m a

Reader to run in the modified environment.

-> m a 

Executes a computation in a modified environment.

reader #

Arguments

:: (r -> a)

The selector function to apply to the environment.

-> m a 

Retrieves a function of the current environment.

Instances

Instances details
MonadReader Window Query 
Instance details

Defined in XMonad.Core

Methods

ask :: Query Window #

local :: (Window -> Window) -> Query a -> Query a #

reader :: (Window -> a) -> Query a #

MonadReader XConf X 
Instance details

Defined in XMonad.Core

Methods

ask :: X XConf #

local :: (XConf -> XConf) -> X a -> X a #

reader :: (XConf -> a) -> X a #

MonadReader XConf PureX Source # 
Instance details

Defined in XMonad.Util.PureX

Methods

ask :: PureX XConf #

local :: (XConf -> XConf) -> PureX a -> PureX a #

reader :: (XConf -> a) -> PureX a #

MonadReader Focus FocusQuery Source # 
Instance details

Defined in XMonad.Hooks.Focus

Methods

ask :: FocusQuery Focus #

local :: (Focus -> Focus) -> FocusQuery a -> FocusQuery a #

reader :: (Focus -> a) -> FocusQuery a #

MonadReader r m => MonadReader r (ListT m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: ListT m r #

local :: (r -> r) -> ListT m a -> ListT m a #

reader :: (r -> a) -> ListT m a #

MonadReader r m => MonadReader r (MaybeT m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: MaybeT m r #

local :: (r -> r) -> MaybeT m a -> MaybeT m a #

reader :: (r -> a) -> MaybeT m a #

(Error e, MonadReader r m) => MonadReader r (ErrorT e m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: ErrorT e m r #

local :: (r -> r) -> ErrorT e m a -> ErrorT e m a #

reader :: (r -> a) -> ErrorT e m a #

MonadReader r m => MonadReader r (ExceptT e m)

Since: mtl-2.2

Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: ExceptT e m r #

local :: (r -> r) -> ExceptT e m a -> ExceptT e m a #

reader :: (r -> a) -> ExceptT e m a #

MonadReader r m => MonadReader r (IdentityT m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: IdentityT m r #

local :: (r -> r) -> IdentityT m a -> IdentityT m a #

reader :: (r -> a) -> IdentityT m a #

Monad m => MonadReader r (ReaderT r m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: ReaderT r m r #

local :: (r -> r) -> ReaderT r m a -> ReaderT r m a #

reader :: (r -> a) -> ReaderT r m a #

MonadReader r m => MonadReader r (StateT s m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: StateT s m r #

local :: (r -> r) -> StateT s m a -> StateT s m a #

reader :: (r -> a) -> StateT s m a #

MonadReader r m => MonadReader r (StateT s m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: StateT s m r #

local :: (r -> r) -> StateT s m a -> StateT s m a #

reader :: (r -> a) -> StateT s m a #

(Monoid w, MonadReader r m) => MonadReader r (WriterT w m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: WriterT w m r #

local :: (r -> r) -> WriterT w m a -> WriterT w m a #

reader :: (r -> a) -> WriterT w m a #

(Monoid w, MonadReader r m) => MonadReader r (WriterT w m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: WriterT w m r #

local :: (r -> r) -> WriterT w m a -> WriterT w m a #

reader :: (r -> a) -> WriterT w m a #

MonadReader r ((->) r) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: r -> r #

local :: (r -> r) -> (r -> a) -> r -> a #

reader :: (r -> a) -> r -> a #

MonadReader r' m => MonadReader r' (ContT r m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: ContT r m r' #

local :: (r' -> r') -> ContT r m a -> ContT r m a #

reader :: (r' -> a) -> ContT r m a #

(Monad m, Monoid w) => MonadReader r (RWST r w s m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: RWST r w s m r #

local :: (r -> r) -> RWST r w s m a -> RWST r w s m a #

reader :: (r -> a) -> RWST r w s m a #

(Monad m, Monoid w) => MonadReader r (RWST r w s m) 
Instance details

Defined in Control.Monad.Reader.Class

Methods

ask :: RWST r w s m r #

local :: (r -> r) -> RWST r w s m a -> RWST r w s m a #

reader :: (r -> a) -> RWST r w s m a #

asks #

Arguments

:: MonadReader r m 
=> (r -> a)

The selector function to apply to the environment.

-> m a 

Retrieves a function of the current environment.

freeColors :: Display -> Colormap -> [Pixel] -> Pixel -> IO () #

copyGC :: Display -> GC -> Mask -> GC -> IO () #

flushGC :: Display -> GC -> IO () #

freeGC :: Display -> GC -> IO () #

setArcMode :: Display -> GC -> ArcMode -> IO () #

setBackground :: Display -> GC -> Pixel -> IO () #

setClipMask :: Display -> GC -> Pixmap -> IO () #

setDashes :: Display -> GC -> CInt -> String -> CInt -> IO () #

setFont :: Display -> GC -> Font -> IO () #

setForeground :: Display -> GC -> Pixel -> IO () #

setPlaneMask :: Display -> GC -> Pixel -> IO () #

setState :: Display -> GC -> Pixel -> Pixel -> GXFunction -> Pixel -> IO () #

setStipple :: Display -> GC -> Pixmap -> IO () #

setTile :: Display -> GC -> Pixmap -> IO () #

noOp :: Display -> IO () #

allocaXEvent :: (XEventPtr -> IO a) -> IO a #

flush :: Display -> IO () #

sync :: Display -> Bool -> IO () #

changeProperty16 :: Display -> Window -> Atom -> Atom -> CInt -> [CShort] -> IO () #

changeProperty32 :: Display -> Window -> Atom -> Atom -> CInt -> [CLong] -> IO () #

changeProperty8 :: Display -> Window -> Atom -> Atom -> CInt -> [CChar] -> IO () #

setConfigureEvent :: XEventPtr -> Window -> Window -> CInt -> CInt -> CInt -> CInt -> CInt -> Window -> Bool -> IO () #

withServer :: Display -> IO () -> IO () #

xFree :: Ptr a -> IO CInt #

bell :: Display -> CInt -> IO () #

drawArcs :: Display -> Drawable -> GC -> [Arc] -> IO () #

drawSegments :: Display -> Drawable -> GC -> [Segment] -> IO () #

fillArcs :: Display -> Drawable -> GC -> [Arc] -> IO () #

freeCursor :: Display -> Font -> IO () #

catchIO :: MonadIO m => IO () -> m () #

catchX :: X a -> X a -> X a #

io :: MonadIO m => IO a -> m a #

runQuery :: Query a -> Window -> X a #

runX :: XConf -> XState -> X a -> IO (a, XState) #

spawn :: MonadIO m => String -> m () #

trace :: MonadIO m => String -> m () #

userCode :: X a -> X (Maybe a) #

userCodeDef :: a -> X a -> X a #

whenJust :: Monad m => Maybe a -> (a -> m ()) -> m () #

whenX :: X Bool -> X () -> X () #

withDisplay :: (Display -> X a) -> X a #

withWindowSet :: (WindowSet -> X a) -> X a #

xfork :: MonadIO m => IO () -> m ProcessID #

xmessage :: MonadIO m => String -> m () #

(|||) :: l a -> r a -> Choose l r a #

launch :: forall (l :: Type -> Type). (LayoutClass l Window, Read (l Window)) => XConfig l -> Directories -> IO () #

(-->) :: (Monad m, Monoid a) => m Bool -> m a -> m a #

(<&&>) :: Monad m => m Bool -> m Bool -> m Bool #

(<+>) :: Monoid m => m -> m -> m #

(<||>) :: Monad m => m Bool -> m Bool -> m Bool #

(=?) :: Eq a => Query a -> a -> Query Bool #

composeAll :: Monoid m => [m] -> m #

doF :: (s -> s) -> Query (Endo s) #

idHook :: Monoid m => m #

ifM :: Monad m => m Bool -> m a -> m a -> m a #

liftX :: X a -> Query a #