<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>XMonad.Util.Invisible</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/XMonad-Util-Invisible.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">xmonad-contrib-0.11: Third party extensions for xmonad</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Portability</th><td>unportable</td></tr><tr><th>Stability</th><td>unstable</td></tr><tr><th>Maintainer</th><td>andrea.rossato@unibz.it</td></tr><tr><th>Safe Haskell</th><td>None</td></tr></table><p class="caption">XMonad.Util.Invisible</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Usage:
</a></li></ul></div><div id="description"><p class="caption">Description</p><div class="doc"><p>A data type to store the layout state
</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><span class="keyword">newtype</span> <a href="#t:Invisible">Invisible</a> m a = <a href="#v:I">I</a> (m a)</li><li class="src short"><a href="#v:whenIJust">whenIJust</a> :: <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Monad">Monad</a> m => <a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Data-Maybe.html#t:Maybe">Maybe</a> a -> (a -> m <a href="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Tuple.html#t:-40--41-">()</a>) -> m <a href="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Tuple.html#t:-40--41-">()</a></li><li class="src short"><a href="#v:fromIMaybe">fromIMaybe</a> :: a -> <a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Data-Maybe.html#t:Maybe">Maybe</a> a -> a</li></ul></div><div id="interface"><h1 id="g:1">Usage:
</h1><div class="doc"><p>A wrapper data type to store layout state that shouldn't be persisted across
restarts. A common wrapped type to use is <code>Maybe a</code>.
Invisible derives trivial definitions for Read and Show, so the wrapped data
type need not do so.
</p></div><div class="top"><p class="src"><span class="keyword">newtype</span> <a name="t:Invisible" class="def">Invisible</a> m a <a href="src/XMonad-Util-Invisible.html#Invisible" class="link">Source</a></p><div class="subs constructors"><p class="caption">Constructors</p><table><tr><td class="src"><a name="v:I" class="def">I</a> (m a)</td><td class="doc empty"> </td></tr></table></div><div class="subs instances"><p id="control.i:Invisible" class="caption collapser" onclick="toggleSection('i:Invisible')">Instances</p><div id="section.i:Invisible" class="show"><table><tr><td class="src"><a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Monad">Monad</a> m => <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Monad">Monad</a> (<a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> m)</td><td class="doc empty"> </td></tr><tr><td class="src"><a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Functor">Functor</a> m => <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Functor">Functor</a> (<a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> m)</td><td class="doc empty"> </td></tr><tr><td class="src">(<a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Functor">Functor</a> m, <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Monad">Monad</a> m) => <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Text-Read.html#t:Read">Read</a> (<a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> m a)</td><td class="doc empty"> </td></tr><tr><td class="src"><a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Monad">Monad</a> m => <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Text-Show.html#t:Show">Show</a> (<a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> m a)</td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><a name="v:whenIJust" class="def">whenIJust</a> :: <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Control-Monad.html#t:Monad">Monad</a> m => <a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Data-Maybe.html#t:Maybe">Maybe</a> a -> (a -> m <a href="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Tuple.html#t:-40--41-">()</a>) -> m <a href="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Tuple.html#t:-40--41-">()</a><a href="src/XMonad-Util-Invisible.html#whenIJust" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:fromIMaybe" class="def">fromIMaybe</a> :: a -> <a href="XMonad-Util-Invisible.html#t:Invisible">Invisible</a> <a href="/usr/share/doc/ghc/html/libraries/base-4.5.0.0/Data-Maybe.html#t:Maybe">Maybe</a> a -> a<a href="src/XMonad-Util-Invisible.html#fromIMaybe" class="link">Source</a></p></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.10.0</p></div></body></html>
