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<title>XMonad/Actions/CycleWS.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : XMonad.Actions.CycleWS</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Joachim Breitner <mail@joachim-breitner.de>,</span>
<a name="line-5"></a><span class='hs-comment'>-- Nelson Elhage <nelhage@mit.edu> (`toggleWS' function)</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : Joachim Breitner <mail@joachim-breitner.de></span>
<a name="line-9"></a><span class='hs-comment'>-- Stability : unstable</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- Provides bindings to cycle forward or backward through the list of</span>
<a name="line-13"></a><span class='hs-comment'>-- workspaces, to move windows between workspaces, and to cycle</span>
<a name="line-14"></a><span class='hs-comment'>-- between screens. More general combinators provide ways to cycle</span>
<a name="line-15"></a><span class='hs-comment'>-- through workspaces in various orders, to only cycle through some</span>
<a name="line-16"></a><span class='hs-comment'>-- subset of workspaces, and to cycle by more than one workspace at a</span>
<a name="line-17"></a><span class='hs-comment'>-- time.</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>-- Note that this module now subsumes the functionality of the former</span>
<a name="line-20"></a><span class='hs-comment'>-- @XMonad.Actions.RotView@. Former users of @rotView@ can simply replace</span>
<a name="line-21"></a><span class='hs-comment'>-- @rotView True@ with @moveTo Next NonEmptyWS@, and so on.</span>
<a name="line-22"></a><span class='hs-comment'>--</span>
<a name="line-23"></a><span class='hs-comment'>-- If you want to exactly replicate the action of @rotView@ (cycling</span>
<a name="line-24"></a><span class='hs-comment'>-- through workspace in order lexicographically by tag, instead of in</span>
<a name="line-25"></a><span class='hs-comment'>-- the order specified in the config), it can be implemented as:</span>
<a name="line-26"></a><span class='hs-comment'>--</span>
<a name="line-27"></a><span class='hs-comment'>-- > rotView b = do t <- findWorkspace getSortByTag (bToDir b) NonEmptyWS 1</span>
<a name="line-28"></a><span class='hs-comment'>-- > windows . greedyView $ t</span>
<a name="line-29"></a><span class='hs-comment'>-- > where bToDir True = Next</span>
<a name="line-30"></a><span class='hs-comment'>-- > bToDir False = Prev</span>
<a name="line-31"></a><span class='hs-comment'>--</span>
<a name="line-32"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Actions</span><span class='hs-varop'>.</span><span class='hs-conid'>CycleWS</span> <span class='hs-layout'>(</span>
<a name="line-35"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-36"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-37"></a>
<a name="line-38"></a> <span class='hs-comment'>-- * Moving between workspaces</span>
<a name="line-39"></a> <span class='hs-comment'>-- $moving</span>
<a name="line-40"></a>
<a name="line-41"></a> <span class='hs-varid'>nextWS</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>prevWS</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>shiftToNext</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>shiftToPrev</span>
<a name="line-45"></a>
<a name="line-46"></a> <span class='hs-comment'>-- * Toggling the previous workspace</span>
<a name="line-47"></a> <span class='hs-comment'>-- $toggling</span>
<a name="line-48"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>toggleWS</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>toggleWS'</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>toggleOrView</span>
<a name="line-51"></a>
<a name="line-52"></a> <span class='hs-comment'>-- * Moving between screens (xinerama)</span>
<a name="line-53"></a>
<a name="line-54"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>nextScreen</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>prevScreen</span>
<a name="line-56"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>shiftNextScreen</span>
<a name="line-57"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>shiftPrevScreen</span>
<a name="line-58"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>swapNextScreen</span>
<a name="line-59"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>swapPrevScreen</span>
<a name="line-60"></a>
<a name="line-61"></a> <span class='hs-comment'>-- * Moving between workspaces, take two!</span>
<a name="line-62"></a> <span class='hs-comment'>-- $taketwo</span>
<a name="line-63"></a>
<a name="line-64"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Direction1D</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>WSType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-66"></a>
<a name="line-67"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>shiftTo</span>
<a name="line-68"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>moveTo</span>
<a name="line-69"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>doTo</span>
<a name="line-70"></a>
<a name="line-71"></a> <span class='hs-comment'>-- * The mother-combinator</span>
<a name="line-72"></a>
<a name="line-73"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>findWorkspace</span>
<a name="line-74"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>toggleOrDoSkip</span>
<a name="line-75"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>skipTags</span>
<a name="line-76"></a>
<a name="line-77"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>screenBy</span>
<a name="line-78"></a>
<a name="line-79"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-80"></a>
<a name="line-81"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>)</span>
<a name="line-82"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>findIndex</span> <span class='hs-layout'>)</span>
<a name="line-83"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isNothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>)</span>
<a name="line-84"></a>
<a name="line-85"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>workspaces</span><span class='hs-layout'>)</span>
<a name="line-86"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>filter</span><span class='hs-layout'>)</span>
<a name="line-87"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-88"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span><span class='hs-varop'>.</span><span class='hs-conid'>WorkspaceCompare</span>
<a name="line-89"></a>
<a name="line-90"></a><span class='hs-comment'>-- $usage</span>
<a name="line-91"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@ file:</span>
<a name="line-92"></a><span class='hs-comment'>--</span>
<a name="line-93"></a><span class='hs-comment'>-- > import XMonad.Actions.CycleWS</span>
<a name="line-94"></a><span class='hs-comment'>-- ></span>
<a name="line-95"></a><span class='hs-comment'>-- > -- a basic CycleWS setup</span>
<a name="line-96"></a><span class='hs-comment'>-- ></span>
<a name="line-97"></a><span class='hs-comment'>-- > , ((modm, xK_Down), nextWS)</span>
<a name="line-98"></a><span class='hs-comment'>-- > , ((modm, xK_Up), prevWS)</span>
<a name="line-99"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_Down), shiftToNext)</span>
<a name="line-100"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_Up), shiftToPrev)</span>
<a name="line-101"></a><span class='hs-comment'>-- > , ((modm, xK_Right), nextScreen)</span>
<a name="line-102"></a><span class='hs-comment'>-- > , ((modm, xK_Left), prevScreen)</span>
<a name="line-103"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_Right), shiftNextScreen)</span>
<a name="line-104"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_Left), shiftPrevScreen)</span>
<a name="line-105"></a><span class='hs-comment'>-- > , ((modm, xK_z), toggleWS)</span>
<a name="line-106"></a><span class='hs-comment'>--</span>
<a name="line-107"></a><span class='hs-comment'>-- If you want to follow the moved window, you can use both actions:</span>
<a name="line-108"></a><span class='hs-comment'>--</span>
<a name="line-109"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_Down), shiftToNext >> nextWS)</span>
<a name="line-110"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_Up), shiftToPrev >> prevWS)</span>
<a name="line-111"></a><span class='hs-comment'>--</span>
<a name="line-112"></a><span class='hs-comment'>-- You can also get fancier with 'moveTo', 'shiftTo', and 'findWorkspace'.</span>
<a name="line-113"></a><span class='hs-comment'>-- For example:</span>
<a name="line-114"></a><span class='hs-comment'>--</span>
<a name="line-115"></a><span class='hs-comment'>-- > , ((modm , xK_f), moveTo Next EmptyWS) -- find a free workspace</span>
<a name="line-116"></a><span class='hs-comment'>-- > , ((modm .|. controlMask, xK_Right), -- a crazy keybinding!</span>
<a name="line-117"></a><span class='hs-comment'>-- > do t <- findWorkspace getSortByXineramaRule Next NonEmptyWS 2</span>
<a name="line-118"></a><span class='hs-comment'>-- > windows . view $ t )</span>
<a name="line-119"></a><span class='hs-comment'>--</span>
<a name="line-120"></a><span class='hs-comment'>-- For detailed instructions on editing your key bindings, see</span>
<a name="line-121"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-122"></a>
<a name="line-123"></a><span class='hs-comment'>{- $moving
<a name="line-124"></a>
<a name="line-125"></a>The following commands for moving the view and windows between
<a name="line-126"></a>workspaces are somewhat inflexible, but are very simple and probably
<a name="line-127"></a>Do The Right Thing for most users.
<a name="line-128"></a>
<a name="line-129"></a>All of the commands in this section cycle through workspaces in the
<a name="line-130"></a>order in which they are given in your config.
<a name="line-131"></a>
<a name="line-132"></a>-}</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="nextWS"></a><span class='hs-comment'>-- | Switch to the next workspace.</span>
<a name="line-135"></a><span class='hs-definition'>nextWS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-136"></a><span class='hs-definition'>nextWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>switchWorkspace</span> <span class='hs-num'>1</span>
<a name="line-137"></a>
<a name="line-138"></a><a name="prevWS"></a><span class='hs-comment'>-- | Switch to the previous workspace.</span>
<a name="line-139"></a><span class='hs-definition'>prevWS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-140"></a><span class='hs-definition'>prevWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>switchWorkspace</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-141"></a>
<a name="line-142"></a><a name="shiftToNext"></a><span class='hs-comment'>-- | Move the focused window to the next workspace.</span>
<a name="line-143"></a><span class='hs-definition'>shiftToNext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-144"></a><span class='hs-definition'>shiftToNext</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shiftBy</span> <span class='hs-num'>1</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="shiftToPrev"></a><span class='hs-comment'>-- | Move the focused window to the previous workspace.</span>
<a name="line-147"></a><span class='hs-definition'>shiftToPrev</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-148"></a><span class='hs-definition'>shiftToPrev</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shiftBy</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-149"></a>
<a name="line-150"></a><span class='hs-comment'>-- $toggling</span>
<a name="line-151"></a>
<a name="line-152"></a><a name="toggleWS"></a><span class='hs-comment'>-- | Toggle to the workspace displayed previously.</span>
<a name="line-153"></a><span class='hs-definition'>toggleWS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-154"></a><span class='hs-definition'>toggleWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toggleWS'</span> <span class='hs-conid'>[]</span>
<a name="line-155"></a>
<a name="line-156"></a><a name="toggleWS'"></a><span class='hs-comment'>-- | Toggle to the previous workspace while excluding some workspaces.</span>
<a name="line-157"></a><span class='hs-comment'>--</span>
<a name="line-158"></a><span class='hs-comment'>-- > -- Ignore the scratchpad workspace while toggling:</span>
<a name="line-159"></a><span class='hs-comment'>-- > ("M-b", toggleWS' ["NSP"])</span>
<a name="line-160"></a><span class='hs-definition'>toggleWS'</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>WorkspaceId</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-161"></a><span class='hs-definition'>toggleWS'</span> <span class='hs-varid'>skips</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-162"></a> <span class='hs-varid'>hs'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cleanHiddens</span> <span class='hs-varid'>skips</span>
<a name="line-163"></a> <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>hs'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-varid'>view</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tag</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-varid'>hs'</span><span class='hs-layout'>)</span>
<a name="line-164"></a>
<a name="line-165"></a><a name="toggleOrView"></a><span class='hs-comment'>-- | 'XMonad.StackSet.greedyView' a workspace, or if already there, view</span>
<a name="line-166"></a><span class='hs-comment'>-- the previously displayed workspace ala weechat. Change @greedyView@ to</span>
<a name="line-167"></a><span class='hs-comment'>-- @toggleOrView@ in your workspace bindings as in the 'XMonad.StackSet.view'</span>
<a name="line-168"></a><span class='hs-comment'>-- faq at <<a href="http://haskell.org/haskellwiki/Xmonad/Frequently_asked_questions">http://haskell.org/haskellwiki/Xmonad/Frequently_asked_questions</a>>.</span>
<a name="line-169"></a><span class='hs-comment'>-- For more flexibility see 'toggleOrDoSkip'.</span>
<a name="line-170"></a><span class='hs-definition'>toggleOrView</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>WorkspaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-171"></a><span class='hs-definition'>toggleOrView</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toggleOrDoSkip</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>greedyView</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="toggleOrDoSkip"></a><span class='hs-comment'>-- | Allows ignoring listed workspace tags (such as scratchpad's \"NSP\"), and</span>
<a name="line-174"></a><span class='hs-comment'>-- running other actions such as view, shift, etc. For example:</span>
<a name="line-175"></a><span class='hs-comment'>--</span>
<a name="line-176"></a><span class='hs-comment'>-- > import qualified XMonad.StackSet as W</span>
<a name="line-177"></a><span class='hs-comment'>-- > import XMonad.Actions.CycleWS</span>
<a name="line-178"></a><span class='hs-comment'>-- ></span>
<a name="line-179"></a><span class='hs-comment'>-- > -- toggleOrView for people who prefer view to greedyView</span>
<a name="line-180"></a><span class='hs-comment'>-- > toggleOrView' = toggleOrDoSkip [] W.view</span>
<a name="line-181"></a><span class='hs-comment'>-- ></span>
<a name="line-182"></a><span class='hs-comment'>-- > -- toggleOrView ignoring scratchpad and named scratchpad workspace</span>
<a name="line-183"></a><span class='hs-comment'>-- > toggleOrViewNoSP = toggleOrDoSkip ["NSP"] W.greedyView</span>
<a name="line-184"></a><span class='hs-definition'>toggleOrDoSkip</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>WorkspaceId</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>WorkspaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WindowSet</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WindowSet</span><span class='hs-layout'>)</span>
<a name="line-185"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WorkspaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-186"></a><span class='hs-definition'>toggleOrDoSkip</span> <span class='hs-varid'>skips</span> <span class='hs-varid'>f</span> <span class='hs-varid'>toWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-187"></a> <span class='hs-varid'>hs'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>cleanHiddens</span> <span class='hs-varid'>skips</span>
<a name="line-188"></a> <span class='hs-varid'>cur</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-varid'>currentTag</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-189"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>toWS</span> <span class='hs-varop'>==</span> <span class='hs-varid'>cur</span>
<a name="line-190"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>hs'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-varid'>f</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tag</span> <span class='hs-varop'>$</span> <span class='hs-varid'>head</span> <span class='hs-varid'>hs'</span><span class='hs-layout'>)</span>
<a name="line-191"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>toWS</span><span class='hs-layout'>)</span>
<a name="line-192"></a>
<a name="line-193"></a><a name="skipTags"></a><span class='hs-comment'>-- | List difference ('\\') for workspaces and tags. Removes workspaces</span>
<a name="line-194"></a><span class='hs-comment'>-- matching listed tags from the given workspace list.</span>
<a name="line-195"></a><span class='hs-definition'>skipTags</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Workspace</span> <span class='hs-varid'>i</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>i</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Workspace</span> <span class='hs-varid'>i</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span>
<a name="line-196"></a><span class='hs-definition'>skipTags</span> <span class='hs-varid'>wss</span> <span class='hs-varid'>ids</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>`notElem`</span> <span class='hs-varid'>ids</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tag</span><span class='hs-layout'>)</span> <span class='hs-varid'>wss</span>
<a name="line-197"></a>
<a name="line-198"></a><a name="cleanHiddens"></a><span class='hs-definition'>cleanHiddens</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>WorkspaceId</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>WindowSpace</span><span class='hs-keyglyph'>]</span>
<a name="line-199"></a><span class='hs-definition'>cleanHiddens</span> <span class='hs-varid'>skips</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gets</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>skipTags</span><span class='hs-layout'>)</span> <span class='hs-varid'>skips</span> <span class='hs-varop'>.</span> <span class='hs-varid'>hidden</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span>
<a name="line-200"></a>
<a name="line-201"></a><a name="switchWorkspace"></a><span class='hs-definition'>switchWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-202"></a><span class='hs-definition'>switchWorkspace</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>wsBy</span> <span class='hs-varid'>d</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-varid'>greedyView</span>
<a name="line-203"></a>
<a name="line-204"></a><a name="shiftBy"></a><span class='hs-definition'>shiftBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-205"></a><span class='hs-definition'>shiftBy</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>wsBy</span> <span class='hs-varid'>d</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shift</span>
<a name="line-206"></a>
<a name="line-207"></a><a name="wsBy"></a><span class='hs-definition'>wsBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-conid'>WorkspaceId</span><span class='hs-layout'>)</span>
<a name="line-208"></a><span class='hs-definition'>wsBy</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findWorkspace</span> <span class='hs-varid'>getSortByIndex</span> <span class='hs-conid'>Next</span> <span class='hs-conid'>AnyWS</span>
<a name="line-209"></a>
<a name="line-210"></a><span class='hs-comment'>{- $taketwo
<a name="line-211"></a>
<a name="line-212"></a>A few more general commands are also provided, which allow cycling
<a name="line-213"></a>through subsets of workspaces.
<a name="line-214"></a>
<a name="line-215"></a>For example,
<a name="line-216"></a>
<a name="line-217"></a>> moveTo Next EmptyWS
<a name="line-218"></a>
<a name="line-219"></a>will move to the first available workspace with no windows, and
<a name="line-220"></a>
<a name="line-221"></a>> shiftTo Prev (WSIs $ return (('p' `elem`) . tag))
<a name="line-222"></a>
<a name="line-223"></a>will move the focused window backwards to the first workspace containing
<a name="line-224"></a>the letter 'p' in its name. =)
<a name="line-225"></a>
<a name="line-226"></a>-}</span>
<a name="line-227"></a>
<a name="line-228"></a><a name="WSType"></a><span class='hs-comment'>-- | What type of workspaces should be included in the cycle?</span>
<a name="line-229"></a><a name="WSType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>WSType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EmptyWS</span> <span class='hs-comment'>-- ^ cycle through empty workspaces</span>
<a name="line-230"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NonEmptyWS</span> <span class='hs-comment'>-- ^ cycle through non-empty workspaces</span>
<a name="line-231"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>HiddenWS</span> <span class='hs-comment'>-- ^ cycle through non-visible workspaces</span>
<a name="line-232"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>HiddenNonEmptyWS</span> <span class='hs-comment'>-- ^ cycle through non-empty non-visible workspaces</span>
<a name="line-233"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AnyWS</span> <span class='hs-comment'>-- ^ cycle through all workspaces</span>
<a name="line-234"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>WSTagGroup</span> <span class='hs-conid'>Char</span>
<a name="line-235"></a> <span class='hs-comment'>-- ^ cycle through workspaces in the same group, the</span>
<a name="line-236"></a> <span class='hs-comment'>-- group name is all characters up to the first</span>
<a name="line-237"></a> <span class='hs-comment'>-- separator character or the end of the tag</span>
<a name="line-238"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>WSIs</span> <span class='hs-layout'>(</span><span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-conid'>WindowSpace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-239"></a> <span class='hs-comment'>-- ^ cycle through workspaces satisfying</span>
<a name="line-240"></a> <span class='hs-comment'>-- an arbitrary predicate</span>
<a name="line-241"></a>
<a name="line-242"></a><a name="wsTypeToPred"></a><span class='hs-comment'>-- | Convert a WSType value to a predicate on workspaces.</span>
<a name="line-243"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>WSType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-conid'>WindowSpace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span>
<a name="line-244"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-conid'>EmptyWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNothing</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stack</span><span class='hs-layout'>)</span>
<a name="line-245"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-conid'>NonEmptyWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>isJust</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stack</span><span class='hs-layout'>)</span>
<a name="line-246"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-conid'>HiddenWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>hs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>tag</span> <span class='hs-varop'>.</span> <span class='hs-varid'>hidden</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-247"></a> <span class='hs-varid'>return</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'>tag</span> <span class='hs-varid'>w</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>hs</span><span class='hs-layout'>)</span>
<a name="line-248"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-conid'>HiddenNonEmptyWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ne</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>wsTypeToPred</span> <span class='hs-conid'>NonEmptyWS</span>
<a name="line-249"></a> <span class='hs-varid'>hi</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>wsTypeToPred</span> <span class='hs-conid'>HiddenWS</span>
<a name="line-250"></a> <span class='hs-varid'>return</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'>hi</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>ne</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-251"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-conid'>AnyWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-252"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-layout'>(</span><span class='hs-conid'>WSTagGroup</span> <span class='hs-varid'>sep</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>cur</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-varid'>groupName</span><span class='hs-varop'>.</span><span class='hs-varid'>workspace</span><span class='hs-varop'>.</span><span class='hs-varid'>current</span><span class='hs-layout'>)</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>gets</span> <span class='hs-varid'>windowset</span>
<a name="line-253"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>cur</span> <span class='hs-varop'>==</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>groupName</span>
<a name="line-254"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>groupName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>takeWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span><span class='hs-varid'>sep</span><span class='hs-layout'>)</span><span class='hs-varop'>.</span><span class='hs-varid'>tag</span>
<a name="line-255"></a><span class='hs-definition'>wsTypeToPred</span> <span class='hs-layout'>(</span><span class='hs-conid'>WSIs</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-256"></a>
<a name="line-257"></a><a name="moveTo"></a><span class='hs-comment'>-- | View the next workspace in the given direction that satisfies</span>
<a name="line-258"></a><span class='hs-comment'>-- the given condition.</span>
<a name="line-259"></a><span class='hs-definition'>moveTo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-260"></a><span class='hs-definition'>moveTo</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>doTo</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-varid'>getSortByIndex</span> <span class='hs-layout'>(</span><span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-varid'>greedyView</span><span class='hs-layout'>)</span>
<a name="line-261"></a>
<a name="line-262"></a><a name="shiftTo"></a><span class='hs-comment'>-- | Move the currently focused window to the next workspace in the</span>
<a name="line-263"></a><span class='hs-comment'>-- given direction that satisfies the given condition.</span>
<a name="line-264"></a><span class='hs-definition'>shiftTo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-265"></a><span class='hs-definition'>shiftTo</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>doTo</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-varid'>getSortByIndex</span> <span class='hs-layout'>(</span><span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shift</span><span class='hs-layout'>)</span>
<a name="line-266"></a>
<a name="line-267"></a><a name="doTo"></a><span class='hs-comment'>-- | Using the given sort, find the next workspace in the given</span>
<a name="line-268"></a><span class='hs-comment'>-- direction of the given type, and perform the given action on it.</span>
<a name="line-269"></a><span class='hs-definition'>doTo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>WorkspaceSort</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>WorkspaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-270"></a><span class='hs-definition'>doTo</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-varid'>srt</span> <span class='hs-varid'>act</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findWorkspace</span> <span class='hs-varid'>srt</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-num'>1</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>act</span>
<a name="line-271"></a>
<a name="line-272"></a><a name="findWorkspace"></a><span class='hs-comment'>-- | Given a function @s@ to sort workspaces, a direction @dir@, a</span>
<a name="line-273"></a><span class='hs-comment'>-- predicate @p@ on workspaces, and an integer @n@, find the tag of</span>
<a name="line-274"></a><span class='hs-comment'>-- the workspace which is @n@ away from the current workspace in</span>
<a name="line-275"></a><span class='hs-comment'>-- direction @dir@ (wrapping around if necessary), among those</span>
<a name="line-276"></a><span class='hs-comment'>-- workspaces, sorted by @s@, which satisfy @p@.</span>
<a name="line-277"></a><span class='hs-comment'>--</span>
<a name="line-278"></a><span class='hs-comment'>-- For some useful workspace sorting functions, see</span>
<a name="line-279"></a><span class='hs-comment'>-- "XMonad.Util.WorkspaceCompare".</span>
<a name="line-280"></a><span class='hs-comment'>--</span>
<a name="line-281"></a><span class='hs-comment'>-- For ideas of what to do with a workspace tag once obtained, note</span>
<a name="line-282"></a><span class='hs-comment'>-- that 'moveTo' and 'shiftTo' are implemented by applying @(>>=</span>
<a name="line-283"></a><span class='hs-comment'>-- (windows . greedyView))@ and @(>>= (windows . shift))@, respectively,</span>
<a name="line-284"></a><span class='hs-comment'>-- to the output of 'findWorkspace'.</span>
<a name="line-285"></a><span class='hs-definition'>findWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>WorkspaceSort</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>WSType</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>WorkspaceId</span>
<a name="line-286"></a><span class='hs-definition'>findWorkspace</span> <span class='hs-varid'>s</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>t</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findWorkspaceGen</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-varid'>wsTypeToPred</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>maybeNegate</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-287"></a> <span class='hs-keyword'>where</span>
<a name="line-288"></a> <span class='hs-varid'>maybeNegate</span> <span class='hs-conid'>Next</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>d</span>
<a name="line-289"></a> <span class='hs-varid'>maybeNegate</span> <span class='hs-conid'>Prev</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-varid'>d</span><span class='hs-layout'>)</span>
<a name="line-290"></a>
<a name="line-291"></a><a name="findWorkspaceGen"></a><span class='hs-definition'>findWorkspaceGen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>WorkspaceSort</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-conid'>WindowSpace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>WorkspaceId</span>
<a name="line-292"></a><span class='hs-definition'>findWorkspaceGen</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-varid'>currentTag</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-293"></a><span class='hs-definition'>findWorkspaceGen</span> <span class='hs-varid'>sortX</span> <span class='hs-varid'>wsPredX</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-294"></a> <span class='hs-varid'>wsPred</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>wsPredX</span>
<a name="line-295"></a> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>sortX</span>
<a name="line-296"></a> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-varid'>windowset</span>
<a name="line-297"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>cur</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>workspace</span> <span class='hs-layout'>(</span><span class='hs-varid'>current</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-298"></a> <span class='hs-varid'>sorted</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sort</span> <span class='hs-layout'>(</span><span class='hs-varid'>workspaces</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-299"></a> <span class='hs-varid'>pivoted</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-layout'>(</span><span class='hs-varid'>tag</span> <span class='hs-varid'>cur</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tag</span><span class='hs-layout'>)</span> <span class='hs-varid'>sorted</span> <span class='hs-keyword'>in</span> <span class='hs-varid'>b</span> <span class='hs-varop'>++</span> <span class='hs-varid'>a</span>
<a name="line-300"></a> <span class='hs-varid'>ws'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-varid'>wsPred</span> <span class='hs-varid'>pivoted</span>
<a name="line-301"></a> <span class='hs-varid'>mCurIx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findWsIndex</span> <span class='hs-varid'>cur</span> <span class='hs-varid'>ws'</span>
<a name="line-302"></a> <span class='hs-varid'>d'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>d</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>d</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>d</span>
<a name="line-303"></a> <span class='hs-varid'>next</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>ws'</span>
<a name="line-304"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>cur</span>
<a name="line-305"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>mCurIx</span> <span class='hs-keyword'>of</span>
<a name="line-306"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ws'</span> <span class='hs-varop'>!!</span> <span class='hs-layout'>(</span><span class='hs-varid'>d'</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ws'</span><span class='hs-layout'>)</span>
<a name="line-307"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>ix</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ws'</span> <span class='hs-varop'>!!</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>ix</span> <span class='hs-varop'>+</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ws'</span><span class='hs-layout'>)</span>
<a name="line-308"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tag</span> <span class='hs-varid'>next</span>
<a name="line-309"></a>
<a name="line-310"></a><a name="findWsIndex"></a><span class='hs-definition'>findWsIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>WindowSpace</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>WindowSpace</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Int</span>
<a name="line-311"></a><span class='hs-definition'>findWsIndex</span> <span class='hs-varid'>ws</span> <span class='hs-varid'>wss</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findIndex</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>tag</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tag</span><span class='hs-layout'>)</span> <span class='hs-varid'>wss</span>
<a name="line-312"></a>
<a name="line-313"></a><a name="nextScreen"></a><span class='hs-comment'>-- | View next screen</span>
<a name="line-314"></a><span class='hs-definition'>nextScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-315"></a><span class='hs-definition'>nextScreen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>switchScreen</span> <span class='hs-num'>1</span>
<a name="line-316"></a>
<a name="line-317"></a><a name="prevScreen"></a><span class='hs-comment'>-- | View prev screen</span>
<a name="line-318"></a><span class='hs-definition'>prevScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-319"></a><span class='hs-definition'>prevScreen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>switchScreen</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-320"></a>
<a name="line-321"></a><a name="switchScreen"></a><span class='hs-definition'>switchScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-322"></a><span class='hs-definition'>switchScreen</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>screenBy</span> <span class='hs-varid'>d</span>
<a name="line-323"></a> <span class='hs-varid'>mws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>screenWorkspace</span> <span class='hs-varid'>s</span>
<a name="line-324"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mws</span> <span class='hs-keyword'>of</span>
<a name="line-325"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-326"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-327"></a>
<a name="line-328"></a><a name="screenBy"></a><span class='hs-comment'>{- | Get the 'ScreenId' /d/ places over. Example usage is a variation of the
<a name="line-329"></a>the default screen keybindings:
<a name="line-330"></a>
<a name="line-331"></a>> -- mod-{w,e}, Switch to previous/next Xinerama screen
<a name="line-332"></a>> -- mod-shift-{w,e}, Move client to previous/next Xinerama screen
<a name="line-333"></a>> --
<a name="line-334"></a>> [((m .|. modm, key), sc >>= screenWorkspace >>= flip whenJust (windows . f))
<a name="line-335"></a>> | (key, sc) <- zip [xK_w, xK_e] [(screenBy (-1)),(screenBy 1)]
<a name="line-336"></a>> , (f, m) <- [(W.view, 0), (W.shift, shiftMask)]]
<a name="line-337"></a>
<a name="line-338"></a>-}</span>
<a name="line-339"></a><span class='hs-definition'>screenBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-conid'>ScreenId</span><span class='hs-layout'>)</span>
<a name="line-340"></a><span class='hs-definition'>screenBy</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-varid'>windowset</span>
<a name="line-341"></a> <span class='hs-comment'>--let ss = sortBy screen (screens ws)</span>
<a name="line-342"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>now</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>screen</span> <span class='hs-layout'>(</span><span class='hs-varid'>current</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-343"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>now</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-varop'>`mod`</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-layout'>(</span><span class='hs-varid'>screens</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-344"></a>
<a name="line-345"></a><a name="swapNextScreen"></a><span class='hs-comment'>-- | Swap current screen with next screen</span>
<a name="line-346"></a><span class='hs-definition'>swapNextScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-347"></a><span class='hs-definition'>swapNextScreen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>swapScreen</span> <span class='hs-num'>1</span>
<a name="line-348"></a>
<a name="line-349"></a><a name="swapPrevScreen"></a><span class='hs-comment'>-- | Swap current screen with previous screen</span>
<a name="line-350"></a><span class='hs-definition'>swapPrevScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-351"></a><span class='hs-definition'>swapPrevScreen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>swapScreen</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-352"></a>
<a name="line-353"></a><a name="swapScreen"></a><span class='hs-definition'>swapScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-354"></a><span class='hs-definition'>swapScreen</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>screenBy</span> <span class='hs-varid'>d</span>
<a name="line-355"></a> <span class='hs-varid'>mws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>screenWorkspace</span> <span class='hs-varid'>s</span>
<a name="line-356"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mws</span> <span class='hs-keyword'>of</span>
<a name="line-357"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-358"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>greedyView</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
<a name="line-359"></a>
<a name="line-360"></a><a name="shiftNextScreen"></a><span class='hs-comment'>-- | Move focused window to workspace on next screen</span>
<a name="line-361"></a><span class='hs-definition'>shiftNextScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-362"></a><span class='hs-definition'>shiftNextScreen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shiftScreenBy</span> <span class='hs-num'>1</span>
<a name="line-363"></a>
<a name="line-364"></a><a name="shiftPrevScreen"></a><span class='hs-comment'>-- | Move focused window to workspace on prev screen</span>
<a name="line-365"></a><span class='hs-definition'>shiftPrevScreen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-366"></a><span class='hs-definition'>shiftPrevScreen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shiftScreenBy</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-367"></a>
<a name="line-368"></a><a name="shiftScreenBy"></a><span class='hs-definition'>shiftScreenBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-369"></a><span class='hs-definition'>shiftScreenBy</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>screenBy</span> <span class='hs-varid'>d</span>
<a name="line-370"></a> <span class='hs-varid'>mws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>screenWorkspace</span> <span class='hs-varid'>s</span>
<a name="line-371"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mws</span> <span class='hs-keyword'>of</span>
<a name="line-372"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-373"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>shift</span> <span class='hs-varid'>ws</span><span class='hs-layout'>)</span>
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