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<title>XMonad/Layout/NoBorders.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE FlexibleContexts, FlexibleInstances, MultiParamTypeClasses, TypeSynonymInstances #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE PatternGuards #-}</span>
<a name="line-3"></a>
<a name="line-4"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-5"></a><span class='hs-comment'>-- |</span>
<a name="line-6"></a><span class='hs-comment'>-- Module : XMonad.Layout.NoBorders</span>
<a name="line-7"></a><span class='hs-comment'>-- Copyright : (c) David Roundy <droundy@darcs.net></span>
<a name="line-8"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Maintainer : Spencer Janssen <spencerjanssen@gmail.com></span>
<a name="line-11"></a><span class='hs-comment'>-- Stability : unstable</span>
<a name="line-12"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-- Make a given layout display without borders. This is useful for</span>
<a name="line-15"></a><span class='hs-comment'>-- full-screen or tabbed layouts, where you don't really want to waste a</span>
<a name="line-16"></a><span class='hs-comment'>-- couple of pixels of real estate just to inform yourself that the visible</span>
<a name="line-17"></a><span class='hs-comment'>-- window has focus.</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-20"></a>
<a name="line-21"></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'>NoBorders</span> <span class='hs-layout'>(</span>
<a name="line-22"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-23"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-24"></a> <span class='hs-varid'>noBorders</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>smartBorders</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>withBorder</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>lessBorders</span><span class='hs-layout'>,</span>
<a name="line-28"></a> <span class='hs-conid'>SetsAmbiguous</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-conid'>Ambiguity</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-30"></a> <span class='hs-conid'>With</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-31"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-34"></a><span class='hs-keyword'>import</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'>LayoutModifier</span>
<a name="line-35"></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-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>M</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Function</span> <span class='hs-layout'>(</span><span class='hs-varid'>on</span><span class='hs-layout'>)</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-comment'>-- $usage</span>
<a name="line-42"></a><span class='hs-comment'>-- You can use this module with the following in your ~\/.xmonad\/xmonad.hs file:</span>
<a name="line-43"></a><span class='hs-comment'>--</span>
<a name="line-44"></a><span class='hs-comment'>-- > import XMonad.Layout.NoBorders</span>
<a name="line-45"></a><span class='hs-comment'>--</span>
<a name="line-46"></a><span class='hs-comment'>-- and modify the layouts to call noBorders on the layouts you want to lack</span>
<a name="line-47"></a><span class='hs-comment'>-- borders:</span>
<a name="line-48"></a><span class='hs-comment'>--</span>
<a name="line-49"></a><span class='hs-comment'>-- > layoutHook = ... ||| noBorders Full ||| ...</span>
<a name="line-50"></a><span class='hs-comment'>--</span>
<a name="line-51"></a><span class='hs-comment'>-- For more detailed instructions on editing the layoutHook see:</span>
<a name="line-52"></a><span class='hs-comment'>--</span>
<a name="line-53"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_the_layout_hook"</span>
<a name="line-54"></a>
<a name="line-55"></a><a name="WithBorder"></a><span class='hs-comment'>-- todo, use an InvisibleList.</span>
<a name="line-56"></a><a name="WithBorder"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>WithBorder</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>WithBorder</span> <span class='hs-conid'>Dimension</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</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-57"></a>
<a name="line-58"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>LayoutModifier</span> <span class='hs-conid'>WithBorder</span> <span class='hs-conid'>Window</span> <span class='hs-keyword'>where</span>
<a name="line-59"></a> <span class='hs-varid'>unhook</span> <span class='hs-layout'>(</span><span class='hs-conid'>WithBorder</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>asks</span> <span class='hs-layout'>(</span><span class='hs-varid'>borderWidth</span> <span class='hs-varop'>.</span> <span class='hs-varid'>config</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>setBorders</span> <span class='hs-varid'>s</span>
<a name="line-60"></a>
<a name="line-61"></a> <span class='hs-varid'>redoLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>WithBorder</span> <span class='hs-varid'>n</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-62"></a> <span class='hs-varid'>asks</span> <span class='hs-layout'>(</span><span class='hs-varid'>borderWidth</span> <span class='hs-varop'>.</span> <span class='hs-varid'>config</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>setBorders</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-63"></a> <span class='hs-varid'>setBorders</span> <span class='hs-varid'>ws</span> <span class='hs-varid'>n</span>
<a name="line-64"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>wrs</span><span class='hs-layout'>,</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>WithBorder</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-65"></a> <span class='hs-keyword'>where</span>
<a name="line-66"></a> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>wrs</span>
<a name="line-67"></a>
<a name="line-68"></a><a name="noBorders"></a><span class='hs-comment'>-- | Removes all window borders from the specified layout.</span>
<a name="line-69"></a><span class='hs-definition'>noBorders</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-varid'>l</span> <span class='hs-conid'>Window</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>l</span> <span class='hs-conid'>Window</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>WithBorder</span> <span class='hs-varid'>l</span> <span class='hs-conid'>Window</span>
<a name="line-70"></a><span class='hs-definition'>noBorders</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withBorder</span> <span class='hs-num'>0</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="withBorder"></a><span class='hs-comment'>-- | Forces a layout to use the specified border width. 'noBorders' is</span>
<a name="line-73"></a><span class='hs-comment'>-- equivalent to @'withBorder' 0@.</span>
<a name="line-74"></a><span class='hs-definition'>withBorder</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Dimension</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>WithBorder</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-75"></a><span class='hs-definition'>withBorder</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-varop'>$</span> <span class='hs-conid'>WithBorder</span> <span class='hs-varid'>b</span> <span class='hs-conid'>[]</span>
<a name="line-76"></a>
<a name="line-77"></a><a name="setBorders"></a><span class='hs-definition'>setBorders</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Window</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dimension</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-78"></a><span class='hs-definition'>setBorders</span> <span class='hs-varid'>ws</span> <span class='hs-varid'>bw</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withDisplay</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>mapM_</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>setWindowBorderWidth</span> <span class='hs-varid'>d</span> <span class='hs-varid'>w</span> <span class='hs-varid'>bw</span><span class='hs-layout'>)</span> <span class='hs-varid'>ws</span>
<a name="line-79"></a>
<a name="line-80"></a><a name="singleton"></a><span class='hs-definition'>singleton</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-81"></a><span class='hs-definition'>singleton</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</span> <span class='hs-varop'>.</span> <span class='hs-varid'>drop</span> <span class='hs-num'>1</span>
<a name="line-82"></a>
<a name="line-83"></a><a name="SmartBorder"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>SmartBorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConfigurableBorder</span> <span class='hs-conid'>Ambiguity</span>
<a name="line-84"></a>
<a name="line-85"></a><a name="smartBorders"></a><span class='hs-comment'>-- | Removes the borders from a window under one of the following conditions:</span>
<a name="line-86"></a><span class='hs-comment'>--</span>
<a name="line-87"></a><span class='hs-comment'>-- * There is only one screen and only one window. In this case it's obvious</span>
<a name="line-88"></a><span class='hs-comment'>-- that it has the focus, so no border is needed.</span>
<a name="line-89"></a><span class='hs-comment'>--</span>
<a name="line-90"></a><span class='hs-comment'>-- * A floating window covers the entire screen (e.g. mplayer).</span>
<a name="line-91"></a><span class='hs-comment'>--</span>
<a name="line-92"></a><span class='hs-definition'>smartBorders</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-conid'>SmartBorder</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-93"></a><span class='hs-definition'>smartBorders</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lessBorders</span> <span class='hs-conid'>Never</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="lessBorders"></a><span class='hs-comment'>-- | Apply a datatype that has a SetsAmbiguous instance to provide a list of</span>
<a name="line-96"></a><span class='hs-comment'>-- windows that should not have borders.</span>
<a name="line-97"></a><span class='hs-comment'>--</span>
<a name="line-98"></a><span class='hs-comment'>-- This gives flexibility over when borders should be drawn, in particular with</span>
<a name="line-99"></a><span class='hs-comment'>-- xinerama setups: 'Ambiguity' has a number of useful 'SetsAmbiguous'</span>
<a name="line-100"></a><span class='hs-comment'>-- instances</span>
<a name="line-101"></a><span class='hs-definition'>lessBorders</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>SetsAmbiguous</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>LayoutClass</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span>
<a name="line-102"></a> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span>
<a name="line-103"></a><span class='hs-definition'>lessBorders</span> <span class='hs-varid'>amb</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModifiedLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>amb</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="ConfigurableBorder"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>p</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</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-106"></a>
<a name="line-107"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>SetsAmbiguous</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>LayoutModifier</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>Window</span> <span class='hs-keyword'>where</span>
<a name="line-108"></a> <span class='hs-varid'>unhook</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConfigurableBorder</span> <span class='hs-sel'>_p</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>asks</span> <span class='hs-layout'>(</span><span class='hs-varid'>borderWidth</span> <span class='hs-varop'>.</span> <span class='hs-varid'>config</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>setBorders</span> <span class='hs-varid'>s</span>
<a name="line-109"></a>
<a name="line-110"></a> <span class='hs-varid'>redoLayout</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>p</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>mst</span> <span class='hs-varid'>wrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-111"></a> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>withWindowSet</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>wset</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>hiddens</span> <span class='hs-varid'>p</span> <span class='hs-varid'>wset</span> <span class='hs-varid'>mst</span> <span class='hs-varid'>wrs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-112"></a> <span class='hs-varid'>asks</span> <span class='hs-layout'>(</span><span class='hs-varid'>borderWidth</span> <span class='hs-varop'>.</span> <span class='hs-varid'>config</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>setBorders</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-113"></a> <span class='hs-varid'>setBorders</span> <span class='hs-varid'>ws</span> <span class='hs-num'>0</span>
<a name="line-114"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>wrs</span><span class='hs-layout'>,</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ConfigurableBorder</span> <span class='hs-varid'>p</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- | SetsAmbiguous allows custom actions to generate lists of windows that</span>
<a name="line-117"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- should not have borders drawn through 'ConfigurableBorder'</span>
<a name="line-118"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-119"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- To add your own (though perhaps those options would better belong as an</span>
<a name="line-120"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- aditional constructor to 'Ambiguity'), you can add the function as such:</span>
<a name="line-121"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-122"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- > data MyAmbiguity = MyAmbiguity deriving (Read, Show)</span>
<a name="line-123"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-124"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- > instance SetsAmbiguous MyAmbiguity where</span>
<a name="line-125"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- > hiddens _ wset mst wrs = otherHiddens Screen \\ otherHiddens OnlyFloat</span>
<a name="line-126"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- > where otherHiddens p = hiddens p wset mst wrs</span>
<a name="line-127"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-128"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- The above example is redundant, because you can have the same result with:</span>
<a name="line-129"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-130"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- > layoutHook = lessBorders (Combine Difference Screen OnlyFloat) (Tall 1 0.5 0.03 ||| ... )</span>
<a name="line-131"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-132"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- To get the same result as smartBorders:</span>
<a name="line-133"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-134"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- > layoutHook = lessBorders (Combine Never) (Tall 1 0.5 0.03 ||| ...)</span>
<a name="line-135"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>--</span>
<a name="line-136"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- This indirect method is required to keep the Read and Show for</span>
<a name="line-137"></a><a name="SetsAmbiguous"></a><span class='hs-comment'>-- ConfigurableBorder so that xmonad can serialize state.</span>
<a name="line-138"></a><a name="SetsAmbiguous"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>SetsAmbiguous</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>where</span>
<a name="line-139"></a> <span class='hs-varid'>hiddens</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WindowSet</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-conid'>Stack</span> <span class='hs-conid'>Window</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Window</span><span class='hs-keyglyph'>]</span>
<a name="line-140"></a>
<a name="line-141"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>SetsAmbiguous</span> <span class='hs-conid'>Ambiguity</span> <span class='hs-keyword'>where</span>
<a name="line-142"></a> <span class='hs-varid'>hiddens</span> <span class='hs-varid'>amb</span> <span class='hs-varid'>wset</span> <span class='hs-varid'>mst</span> <span class='hs-varid'>wrs</span>
<a name="line-143"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Combine</span> <span class='hs-conid'>Union</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>on</span> <span class='hs-varid'>union</span> <span class='hs-varid'>next</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-144"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Combine</span> <span class='hs-conid'>Difference</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>on</span> <span class='hs-layout'>(</span><span class='hs-varop'>\\</span><span class='hs-layout'>)</span> <span class='hs-varid'>next</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-145"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Combine</span> <span class='hs-conid'>Intersection</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>on</span> <span class='hs-varid'>intersect</span> <span class='hs-varid'>next</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span>
<a name="line-146"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tiled</span> <span class='hs-varid'>ms</span> <span class='hs-varop'>++</span> <span class='hs-varid'>floating</span>
<a name="line-147"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>next</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hiddens</span> <span class='hs-varid'>p</span> <span class='hs-varid'>wset</span> <span class='hs-varid'>mst</span> <span class='hs-varid'>wrs</span>
<a name="line-148"></a> <span class='hs-varid'>nonzerorect</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-149"></a> <span class='hs-varid'>nonzerorect</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-150"></a>
<a name="line-151"></a> <span class='hs-varid'>screens</span> <span class='hs-keyglyph'>=</span>
<a name="line-152"></a> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>scr</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>scr</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>screens</span> <span class='hs-varid'>wset</span><span class='hs-layout'>,</span>
<a name="line-153"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>amb</span> <span class='hs-keyword'>of</span>
<a name="line-154"></a> <span class='hs-conid'>Never</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>True</span>
<a name="line-155"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>null</span> <span class='hs-varop'>$</span> <span class='hs-varid'>integrate</span> <span class='hs-varid'>scr</span><span class='hs-layout'>,</span>
<a name="line-156"></a> <span class='hs-varid'>nonzerorect</span> <span class='hs-varop'>.</span> <span class='hs-varid'>screenRect</span> <span class='hs-varop'>$</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>screenDetail</span> <span class='hs-varid'>scr</span><span class='hs-keyglyph'>]</span>
<a name="line-157"></a> <span class='hs-varid'>floating</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>|</span>
<a name="line-158"></a> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-layout'>,</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-conid'>RationalRect</span> <span class='hs-varid'>px</span> <span class='hs-varid'>py</span> <span class='hs-varid'>wx</span> <span class='hs-varid'>wy</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>floating</span> <span class='hs-varop'>$</span> <span class='hs-varid'>wset</span><span class='hs-layout'>,</span>
<a name="line-159"></a> <span class='hs-varid'>px</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>py</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span>
<a name="line-160"></a> <span class='hs-varid'>wx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>px</span> <span class='hs-varop'>>=</span> <span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-varid'>wy</span> <span class='hs-varop'>+</span> <span class='hs-varid'>py</span> <span class='hs-varop'>>=</span> <span class='hs-num'>1</span><span class='hs-keyglyph'>]</span>
<a name="line-161"></a> <span class='hs-varid'>ms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varop'>`elem`</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>integrate'</span> <span class='hs-varid'>mst</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>wrs</span>
<a name="line-162"></a> <span class='hs-varid'>tiled</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</span>
<a name="line-163"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Screen</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amb</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</span>
<a name="line-164"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OnlyFloat</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amb</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-165"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OtherIndicated</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>amb</span>
<a name="line-166"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>nonF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>integrate</span> <span class='hs-varop'>$</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>current</span> <span class='hs-varid'>wset</span> <span class='hs-conop'>:</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>visible</span> <span class='hs-varid'>wset</span>
<a name="line-167"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>length</span> <span class='hs-layout'>(</span><span class='hs-varid'>concat</span> <span class='hs-varid'>nonF</span><span class='hs-layout'>)</span> <span class='hs-varop'>></span> <span class='hs-varid'>length</span> <span class='hs-varid'>wrs</span>
<a name="line-168"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>singleton</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>length</span> <span class='hs-varid'>nonF</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</span>
<a name="line-169"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>singleton</span> <span class='hs-varid'>screens</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>w</span><span class='hs-keyglyph'>]</span>
<a name="line-170"></a> <span class='hs-varid'>tiled</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-171"></a> <span class='hs-varid'>integrate</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>integrate'</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>stack</span> <span class='hs-varop'>$</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>workspace</span> <span class='hs-varid'>y</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="Ambiguity"></a><span class='hs-comment'>-- | In order of increasing ambiguity (less borders more frequently), where</span>
<a name="line-174"></a><a name="Ambiguity"></a><span class='hs-comment'>-- subsequent constructors add additional cases where borders are not drawn</span>
<a name="line-175"></a><a name="Ambiguity"></a><span class='hs-comment'>-- than their predecessors. These behaviors make most sense with with multiple</span>
<a name="line-176"></a><a name="Ambiguity"></a><span class='hs-comment'>-- screens: for single screens, Never or 'smartBorders' makes more sense.</span>
<a name="line-177"></a><a name="Ambiguity"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Ambiguity</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Combine</span> <span class='hs-conid'>With</span> <span class='hs-conid'>Ambiguity</span> <span class='hs-conid'>Ambiguity</span>
<a name="line-178"></a> <span class='hs-comment'>-- ^ This constructor is used to combine the</span>
<a name="line-179"></a> <span class='hs-comment'>-- borderless windows provided by the</span>
<a name="line-180"></a> <span class='hs-comment'>-- SetsAmbiguous instances from two other</span>
<a name="line-181"></a> <span class='hs-comment'>-- 'Ambiguity' data types.</span>
<a name="line-182"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OnlyFloat</span> <span class='hs-comment'>-- ^ Only remove borders on floating windows that</span>
<a name="line-183"></a> <span class='hs-comment'>-- cover the whole screen</span>
<a name="line-184"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Never</span> <span class='hs-comment'>-- ^ Never remove borders when ambiguous:</span>
<a name="line-185"></a> <span class='hs-comment'>-- this is the same as smartBorders</span>
<a name="line-186"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>EmptyScreen</span> <span class='hs-comment'>-- ^ Focus in an empty screens does not count as</span>
<a name="line-187"></a> <span class='hs-comment'>-- ambiguous.</span>
<a name="line-188"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OtherIndicated</span>
<a name="line-189"></a> <span class='hs-comment'>-- ^ No borders on full when all other screens</span>
<a name="line-190"></a> <span class='hs-comment'>-- have borders.</span>
<a name="line-191"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Screen</span> <span class='hs-comment'>-- ^ Borders are never drawn on singleton screens.</span>
<a name="line-192"></a> <span class='hs-comment'>-- With this one you really need another way such</span>
<a name="line-193"></a> <span class='hs-comment'>-- as a statusbar to detect focus.</span>
<a name="line-194"></a> <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-195"></a>
<a name="line-196"></a><a name="With"></a><span class='hs-comment'>-- | Used to indicate to the 'SetsAmbiguous' instance for 'Ambiguity' how two</span>
<a name="line-197"></a><a name="With"></a><span class='hs-comment'>-- lists should be combined.</span>
<a name="line-198"></a><a name="With"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>With</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Union</span> <span class='hs-comment'>-- ^ Combine with Data.List.union</span>
<a name="line-199"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Difference</span> <span class='hs-comment'>-- ^ Combine with Data.List.\\</span>
<a name="line-200"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Intersection</span> <span class='hs-comment'>-- ^ Combine with Data.List.intersect</span>
<a name="line-201"></a> <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>
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