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<title>XMonad/Actions/WorkspaceNames.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.WorkspaceNames</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Tomas Janousek <tomi@nomi.cz></span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- Maintainer : Tomas Janousek <tomi@nomi.cz></span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : unportable</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Provides bindings to rename workspaces, show these names in DynamicLog and</span>
<a name="line-12"></a><span class='hs-comment'>-- swap workspaces along with their names. These names survive restart.</span>
<a name="line-13"></a><span class='hs-comment'>-- Together with "XMonad.Layout.WorkspaceDir" this provides for a fully</span>
<a name="line-14"></a><span class='hs-comment'>-- dynamic topic space workflow.</span>
<a name="line-15"></a><span class='hs-comment'>--</span>
<a name="line-16"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-19"></a>
<a name="line-20"></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'>WorkspaceNames</span> <span class='hs-layout'>(</span>
<a name="line-21"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-22"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-23"></a>
<a name="line-24"></a> <span class='hs-comment'>-- * Workspace naming</span>
<a name="line-25"></a> <span class='hs-varid'>renameWorkspace</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>workspaceNamesPP</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>getWorkspaceNames</span><span class='hs-layout'>,</span>
<a name="line-28"></a> <span class='hs-varid'>setWorkspaceName</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-varid'>setCurrentWorkspaceName</span><span class='hs-layout'>,</span>
<a name="line-30"></a>
<a name="line-31"></a> <span class='hs-comment'>-- * Workspace swapping</span>
<a name="line-32"></a> <span class='hs-varid'>swapTo</span><span class='hs-layout'>,</span>
<a name="line-33"></a> <span class='hs-varid'>swapTo'</span><span class='hs-layout'>,</span>
<a name="line-34"></a> <span class='hs-varid'>swapWithCurrent</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-36"></a>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-38"></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-39"></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'>Util</span><span class='hs-varop'>.</span><span class='hs-conid'>ExtensibleState</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>XS</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-keyword'>import</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><span class='hs-varid'>findWorkspace</span><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><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><span class='hs-layout'>)</span>
<a name="line-42"></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'>Actions</span><span class='hs-varop'>.</span><span class='hs-conid'>SwapWorkspaces</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Swap</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Hooks</span><span class='hs-varop'>.</span><span class='hs-conid'>DynamicLog</span> <span class='hs-layout'>(</span><span class='hs-conid'>PP</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Prompt</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkXPrompt</span><span class='hs-layout'>,</span> <span class='hs-conid'>XPConfig</span><span class='hs-layout'>)</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Prompt</span><span class='hs-varop'>.</span><span class='hs-conid'>Workspace</span> <span class='hs-layout'>(</span><span class='hs-conid'>Wor</span><span class='hs-layout'>(</span><span class='hs-conid'>Wor</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-46"></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> <span class='hs-layout'>(</span><span class='hs-varid'>getSortByIndex</span><span class='hs-layout'>)</span>
<a name="line-47"></a>
<a name="line-48"></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-49"></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'>fromMaybe</span><span class='hs-layout'>)</span>
<a name="line-50"></a>
<a name="line-51"></a><span class='hs-comment'>-- $usage</span>
<a name="line-52"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@ file:</span>
<a name="line-53"></a><span class='hs-comment'>--</span>
<a name="line-54"></a><span class='hs-comment'>-- > import XMonad.Actions.WorkspaceNames</span>
<a name="line-55"></a><span class='hs-comment'>--</span>
<a name="line-56"></a><span class='hs-comment'>-- Then add keybindings like the following:</span>
<a name="line-57"></a><span class='hs-comment'>--</span>
<a name="line-58"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_r ), renameWorkspace defaultXPConfig)</span>
<a name="line-59"></a><span class='hs-comment'>--</span>
<a name="line-60"></a><span class='hs-comment'>-- and apply workspaceNamesPP to your DynamicLog pretty-printer:</span>
<a name="line-61"></a><span class='hs-comment'>--</span>
<a name="line-62"></a><span class='hs-comment'>-- > myLogHook =</span>
<a name="line-63"></a><span class='hs-comment'>-- > workspaceNamesPP xmobarPP >>= dynamicLogString >>= xmonadPropLog</span>
<a name="line-64"></a><span class='hs-comment'>--</span>
<a name="line-65"></a><span class='hs-comment'>-- We also provide a modification of "XMonad.Actions.SwapWorkspaces"\'s</span>
<a name="line-66"></a><span class='hs-comment'>-- functionality, which may be used this way:</span>
<a name="line-67"></a><span class='hs-comment'>--</span>
<a name="line-68"></a><span class='hs-comment'>-- > , ((modMask .|. shiftMask, xK_Left ), swapTo Prev)</span>
<a name="line-69"></a><span class='hs-comment'>-- > , ((modMask .|. shiftMask, xK_Right ), swapTo Next)</span>
<a name="line-70"></a><span class='hs-comment'>--</span>
<a name="line-71"></a><span class='hs-comment'>-- > [((modm .|. controlMask, k), swapWithCurrent i)</span>
<a name="line-72"></a><span class='hs-comment'>-- > | (i, k) <- zip workspaces [xK_1 ..]]</span>
<a name="line-73"></a><span class='hs-comment'>--</span>
<a name="line-74"></a><span class='hs-comment'>-- For detailed instructions on editing your key bindings, see</span>
<a name="line-75"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-76"></a>
<a name="line-77"></a>
<a name="line-78"></a>
<a name="line-79"></a><a name="WorkspaceNames"></a><span class='hs-comment'>-- | Workspace names container.</span>
<a name="line-80"></a><a name="WorkspaceNames"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-conid'>WorkspaceId</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span>
<a name="line-81"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</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-82"></a>
<a name="line-83"></a><a name="instance%20ExtensionClass%20WorkspaceNames"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ExtensionClass</span> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-keyword'>where</span>
<a name="line-84"></a> <span class='hs-varid'>initialValue</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-85"></a> <span class='hs-varid'>extensionType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PersistentExtension</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="getWorkspaceNames"></a><span class='hs-comment'>-- | Returns a function that maps workspace tag @\"t\"@ to @\"t:name\"@ for</span>
<a name="line-88"></a><span class='hs-comment'>-- workspaces with a name, and to @\"t\"@ otherwise.</span>
<a name="line-89"></a><span class='hs-definition'>getWorkspaceNames</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-keyglyph'>-></span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span>
<a name="line-90"></a><span class='hs-definition'>getWorkspaceNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-91"></a> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>get</span>
<a name="line-92"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>wks</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>wks</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>of</span>
<a name="line-93"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>wks</span>
<a name="line-94"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>wks</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>s</span>
<a name="line-95"></a>
<a name="line-96"></a><a name="setWorkspaceName"></a><span class='hs-comment'>-- | Sets the name of a workspace. Empty string makes the workspace unnamed</span>
<a name="line-97"></a><span class='hs-comment'>-- again.</span>
<a name="line-98"></a><span class='hs-definition'>setWorkspaceName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>WorkspaceId</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-99"></a><span class='hs-definition'>setWorkspaceName</span> <span class='hs-varid'>w</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-100"></a> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>get</span>
<a name="line-101"></a> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>put</span> <span class='hs-varop'>$</span> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>w</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>w</span> <span class='hs-varid'>name</span> <span class='hs-varid'>m</span>
<a name="line-102"></a> <span class='hs-varid'>refresh</span>
<a name="line-103"></a>
<a name="line-104"></a><a name="setCurrentWorkspaceName"></a><span class='hs-comment'>-- | Sets the name of the current workspace. See 'setWorkspaceName'.</span>
<a name="line-105"></a><span class='hs-definition'>setCurrentWorkspaceName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-106"></a><span class='hs-definition'>setCurrentWorkspaceName</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-107"></a> <span class='hs-varid'>current</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</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-108"></a> <span class='hs-varid'>setWorkspaceName</span> <span class='hs-varid'>current</span> <span class='hs-varid'>name</span>
<a name="line-109"></a>
<a name="line-110"></a><a name="renameWorkspace"></a><span class='hs-comment'>-- | Prompt for a new name for the current workspace and set it.</span>
<a name="line-111"></a><span class='hs-definition'>renameWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>XPConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-112"></a><span class='hs-definition'>renameWorkspace</span> <span class='hs-varid'>conf</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-113"></a> <span class='hs-varid'>mkXPrompt</span> <span class='hs-varid'>pr</span> <span class='hs-varid'>conf</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>setCurrentWorkspaceName</span>
<a name="line-114"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>pr</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Wor</span> <span class='hs-str'>"Workspace name: "</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="workspaceNamesPP"></a><span class='hs-comment'>-- | Modify "XMonad.Hooks.DynamicLog"\'s pretty-printing format to show</span>
<a name="line-117"></a><span class='hs-comment'>-- workspace names as well.</span>
<a name="line-118"></a><span class='hs-definition'>workspaceNamesPP</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PP</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>PP</span>
<a name="line-119"></a><span class='hs-definition'>workspaceNamesPP</span> <span class='hs-varid'>pp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-120"></a> <span class='hs-varid'>names</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getWorkspaceNames</span>
<a name="line-121"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span>
<a name="line-122"></a> <span class='hs-varid'>pp</span> <span class='hs-layout'>{</span>
<a name="line-123"></a> <span class='hs-varid'>ppCurrent</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppCurrent</span> <span class='hs-varid'>pp</span> <span class='hs-varop'>.</span> <span class='hs-varid'>names</span><span class='hs-layout'>,</span>
<a name="line-124"></a> <span class='hs-varid'>ppVisible</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppVisible</span> <span class='hs-varid'>pp</span> <span class='hs-varop'>.</span> <span class='hs-varid'>names</span><span class='hs-layout'>,</span>
<a name="line-125"></a> <span class='hs-varid'>ppHidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppHidden</span> <span class='hs-varid'>pp</span> <span class='hs-varop'>.</span> <span class='hs-varid'>names</span><span class='hs-layout'>,</span>
<a name="line-126"></a> <span class='hs-varid'>ppHiddenNoWindows</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppHiddenNoWindows</span> <span class='hs-varid'>pp</span> <span class='hs-varop'>.</span> <span class='hs-varid'>names</span><span class='hs-layout'>,</span>
<a name="line-127"></a> <span class='hs-varid'>ppUrgent</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ppUrgent</span> <span class='hs-varid'>pp</span> <span class='hs-varop'>.</span> <span class='hs-varid'>names</span>
<a name="line-128"></a> <span class='hs-layout'>}</span>
<a name="line-129"></a>
<a name="line-130"></a><a name="swapTo"></a><span class='hs-comment'>-- | See 'XMonad.Actions.SwapWorkspaces.swapTo'. This is the same with names.</span>
<a name="line-131"></a><span class='hs-definition'>swapTo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction1D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-132"></a><span class='hs-definition'>swapTo</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>swapTo'</span> <span class='hs-varid'>dir</span> <span class='hs-conid'>AnyWS</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="swapTo'"></a><span class='hs-comment'>-- | Swap with the previous or next workspace of the given type.</span>
<a name="line-135"></a><span class='hs-definition'>swapTo'</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-136"></a><span class='hs-definition'>swapTo'</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>which</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findWorkspace</span> <span class='hs-varid'>getSortByIndex</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>which</span> <span class='hs-num'>1</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>swapWithCurrent</span>
<a name="line-137"></a>
<a name="line-138"></a><a name="swapWithCurrent"></a><span class='hs-comment'>-- | See 'XMonad.Actions.SwapWorkspaces.swapWithCurrent'. This is almost the</span>
<a name="line-139"></a><span class='hs-comment'>-- same with names.</span>
<a name="line-140"></a><span class='hs-definition'>swapWithCurrent</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-141"></a><span class='hs-definition'>swapWithCurrent</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-142"></a> <span class='hs-varid'>current</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</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-143"></a> <span class='hs-varid'>swapNames</span> <span class='hs-varid'>t</span> <span class='hs-varid'>current</span>
<a name="line-144"></a> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Swap</span><span class='hs-varop'>.</span><span class='hs-varid'>swapWorkspaces</span> <span class='hs-varid'>t</span> <span class='hs-varid'>current</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="swapNames"></a><span class='hs-comment'>-- | Swap names of the two workspaces.</span>
<a name="line-147"></a><span class='hs-definition'>swapNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>WorkspaceId</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-148"></a><span class='hs-definition'>swapNames</span> <span class='hs-varid'>w1</span> <span class='hs-varid'>w2</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-149"></a> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>get</span>
<a name="line-150"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>getname</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-str'>""</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>w</span> <span class='hs-varid'>m</span>
<a name="line-151"></a> <span class='hs-varid'>set</span> <span class='hs-varid'>w</span> <span class='hs-varid'>name</span> <span class='hs-varid'>m'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>name</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>w</span> <span class='hs-varid'>m'</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>w</span> <span class='hs-varid'>name</span> <span class='hs-varid'>m'</span>
<a name="line-152"></a> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>put</span> <span class='hs-varop'>$</span> <span class='hs-conid'>WorkspaceNames</span> <span class='hs-varop'>$</span> <span class='hs-varid'>set</span> <span class='hs-varid'>w1</span> <span class='hs-layout'>(</span><span class='hs-varid'>getname</span> <span class='hs-varid'>w2</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>set</span> <span class='hs-varid'>w2</span> <span class='hs-layout'>(</span><span class='hs-varid'>getname</span> <span class='hs-varid'>w1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>m</span>
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