xmonad-contrib-0.8.1: Third party extensions for xmonad Source code Contents Index

XMonad.Util.Invisible Portability unportable Stability unstable Maintainer andrea.rossato@unibz.it, droundy@darcs.net

Contents Usage:

Description

A data type to store the layout state

Synopsis

newtype Invisible m a = I (m a) whenIJust :: Monad m => Invisible Maybe a -> (a -> m ()) -> m () fromIMaybe :: a -> Invisible Maybe a -> a

Usage:

A wrapper data type to store layout state that shouldn't be persisted across restarts. A common wrapped type to use is Maybe a. Invisible derives trivial definitions for Read and Show, so the wrapped data type need not do so.

newtype Invisible m a Source

Constructors I (m a) Instances Monad m => Monad (Invisible m) Functor m => Functor (Invisible m) (Functor m, Monad m) => Read (Invisible m a) Monad m => Show (Invisible m a)

whenIJust :: Monad m => Invisible Maybe a -> (a -> m ()) -> m () Source

fromIMaybe :: a -> Invisible Maybe a -> a Source

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