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<title>XMonad/Layout/Accordion.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>-- |</span>
<a name="line-5"></a><span class='hs-comment'>-- Module : XMonad.Layout.Accordion</span>
<a name="line-6"></a><span class='hs-comment'>-- Copyright : (c) glasser@mit.edu</span>
<a name="line-7"></a><span class='hs-comment'>-- License : BSD</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer : glasser@mit.edu</span>
<a name="line-10"></a><span class='hs-comment'>-- Stability : stable</span>
<a name="line-11"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- LayoutClass that puts non-focused windows in ribbons at the top and bottom</span>
<a name="line-14"></a><span class='hs-comment'>-- of the screen.</span>
<a name="line-15"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Layout</span><span class='hs-varop'>.</span><span class='hs-conid'>Accordion</span> <span class='hs-layout'>(</span>
<a name="line-18"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-19"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-20"></a> <span class='hs-conid'>Accordion</span><span class='hs-layout'>(</span><span class='hs-conid'>Accordion</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>W</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Ratio</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-comment'>-- $usage</span>
<a name="line-27"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:</span>
<a name="line-28"></a><span class='hs-comment'>--</span>
<a name="line-29"></a><span class='hs-comment'>-- > import XMonad.Layout.Accordion</span>
<a name="line-30"></a><span class='hs-comment'>--</span>
<a name="line-31"></a><span class='hs-comment'>-- Then edit your @layoutHook@ by adding the Accordion layout:</span>
<a name="line-32"></a><span class='hs-comment'>--</span>
<a name="line-33"></a><span class='hs-comment'>-- > myLayout = Accordion ||| Full ||| etc..</span>
<a name="line-34"></a><span class='hs-comment'>-- > main = xmonad defaultConfig { layoutHook = myLayout }</span>
<a name="line-35"></a><span class='hs-comment'>--</span>
<a name="line-36"></a><span class='hs-comment'>-- For more detailed instructions on editing the layoutHook see:</span>
<a name="line-37"></a><span class='hs-comment'>--</span>
<a name="line-38"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_the_layout_hook"</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="Accordion"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Accordion</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Accordion</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>)</span>
<a name="line-41"></a>
<a name="line-42"></a><a name="instance%20LayoutClass%20Accordion%20Window"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-conid'>Accordion</span> <span class='hs-conid'>Window</span> <span class='hs-keyword'>where</span>
<a name="line-43"></a> <span class='hs-varid'>pureLayout</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>sc</span> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>ups</span> <span class='hs-varid'>tops</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>focus</span> <span class='hs-varid'>ws</span><span class='hs-layout'>,</span> <span class='hs-varid'>mainPane</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>zip</span> <span class='hs-varid'>dns</span> <span class='hs-varid'>bottoms</span>
<a name="line-44"></a> <span class='hs-keyword'>where</span>
<a name="line-45"></a> <span class='hs-varid'>ups</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>$</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>up</span> <span class='hs-varid'>ws</span>
<a name="line-46"></a> <span class='hs-varid'>dns</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>down</span> <span class='hs-varid'>ws</span>
<a name="line-47"></a> <span class='hs-layout'>(</span><span class='hs-varid'>top</span><span class='hs-layout'>,</span> <span class='hs-varid'>allButTop</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVerticallyBy</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>%</span><span class='hs-num'>8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ratio</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-varid'>sc</span>
<a name="line-48"></a> <span class='hs-layout'>(</span><span class='hs-varid'>center</span><span class='hs-layout'>,</span> <span class='hs-varid'>bottom</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVerticallyBy</span> <span class='hs-layout'>(</span><span class='hs-num'>6</span><span class='hs-varop'>%</span><span class='hs-num'>7</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ratio</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-varid'>allButTop</span>
<a name="line-49"></a> <span class='hs-layout'>(</span><span class='hs-varid'>allButBottom</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitVerticallyBy</span> <span class='hs-layout'>(</span><span class='hs-num'>7</span><span class='hs-varop'>%</span><span class='hs-num'>8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ratio</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-varid'>sc</span>
<a name="line-50"></a> <span class='hs-varid'>mainPane</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ups</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>[]</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>dns</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>center</span>
<a name="line-51"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ups</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>allButTop</span>
<a name="line-52"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>dns</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>allButBottom</span>
<a name="line-53"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sc</span>
<a name="line-54"></a> <span class='hs-varid'>tops</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ups</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>ups</span><span class='hs-layout'>)</span> <span class='hs-varid'>top</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>[]</span>
<a name="line-55"></a> <span class='hs-varid'>bottoms</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>dns</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>splitVertically</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>dns</span><span class='hs-layout'>)</span> <span class='hs-varid'>bottom</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>[]</span>
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