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>XMonad.Actions.MessageFeedback</TITLE
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>xmonad-contrib-0.9.1: Third party extensions for xmonad</TD
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><A HREF="src/XMonad-Actions-MessageFeedback.html"
>Source code</A
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><FONT SIZE="6"
>XMonad.Actions.MessageFeedback</FONT
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><TR
><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>unportable</TD
></TR
><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>unstable</TD
></TR
><TR
><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>None</TD
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><TD CLASS="section4"
><B
>Contents</B
></TD
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><TR
><TD
><DL
><DT
><A HREF="#1"
>Usage
</A
></DT
></DL
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
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><TR
><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
>Alternative to XMonad.Operations.sendMessage that provides knowledge
 of whether the message was handled, and utility functions based on
 this facility.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
></TR
><TR
><TD CLASS="s15"
></TD
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><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="#v%3Asend"
>send</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a =&gt; a -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AtryMessage"
>tryMessage</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> b) =&gt; a -&gt; b -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AtryMessage_"
>tryMessage_</A
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> b) =&gt; a -&gt; b -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AtryInOrder"
>tryInOrder</A
> :: [<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
>] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AtryInOrder_"
>tryInOrder_</A
> :: [<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
>] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3Asm"
>sm</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a =&gt; a -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AsendSM"
>sendSM</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AsendSM_"
>sendSM_</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="1"
><A NAME="1"
>Usage
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="doc"
><P
>You can use this module with the following in your <TT
>~/.xmonad/xmonad.hs</TT
>:
</P
><PRE
> import XMonad.Actions.MessageFeedback
</PRE
><P
>You can then use this module's functions wherever an action is expected.
</P
><P
>Note that most functions in this module have a return type of <TT
>X Bool</TT
>
 whereas configuration options will expect a <TT
>X ()</TT
> action.
 For example, the key binding
</P
><PRE
> -- Shrink the master area of a tiled layout, or move the focused window
 -- to the left in a WindowArranger-based layout
 ((modKey, xK_Left), tryMessage Shrink (MoveLeft 50))
</PRE
><P
>is mis-typed. For this reason, this module provides alternatives (ending with
 an underscore, e.g. tryMessage_) that discard their result and return an <TT
>X ()</TT
>.
 For example, to correct the previous example:
</P
><PRE
> ((modKey, xK_Left), tryMessage_ Shrink (MoveLeft 50))
</PRE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:send"
><A NAME="v%3Asend"
></A
></A
><B
>send</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a =&gt; a -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#send"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Behaves like XMonad.Operations.sendMessage, but returns True of the
 message was handled by the layout, False otherwise.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:tryMessage"
><A NAME="v%3AtryMessage"
></A
></A
><B
>tryMessage</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> b) =&gt; a -&gt; b -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#tryMessage"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Sends the first message, and if it was not handled, sends the second.
 Returns True if either message was handled, False otherwise.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:tryMessage_"
><A NAME="v%3AtryMessage_"
></A
></A
><B
>tryMessage_</B
> :: (<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a, <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> b) =&gt; a -&gt; b -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#tryMessage_"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:tryInOrder"
><A NAME="v%3AtryInOrder"
></A
></A
><B
>tryInOrder</B
> :: [<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
>] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#tryInOrder"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Tries sending every message of the list in order until one of them
 is handled. Returns True if one of the messages was handled, False otherwise.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:tryInOrder_"
><A NAME="v%3AtryInOrder_"
></A
></A
><B
>tryInOrder_</B
> :: [<A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
>] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#tryInOrder_"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:sm"
><A NAME="v%3Asm"
></A
></A
><B
>sm</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AMessage"
>Message</A
> a =&gt; a -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#sm"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Convenience shorthand for <TT
><A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
></TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:sendSM"
><A NAME="v%3AsendSM"
></A
></A
><B
>sendSM</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#sendSM"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:sendSM_"
><A NAME="v%3AsendSM_"
></A
></A
><B
>sendSM_</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3ASomeMessage"
>SomeMessage</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/xmonad-0.9.1/XMonad-Core.html#t%3AX"
>X</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
><TD CLASS="declbut"
><A HREF="src/XMonad-Actions-MessageFeedback.html#sendSM_"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
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