xhb-mapping-state

This package provides a monad transformer over MonadX that keeps track of modifier, key, and button mappings within the X server. At its core is the following typeclass:

class Monad m => MappingCtx m where
    getMapping :: m MappingState
    updateMapping :: MappingNotifyEvent -> m ()

Documentation

This article describes this package and some of its friends in detail.

Haddock can be found here.