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<title>XMonad/Actions/DynamicWorkspaces.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.DynamicWorkspaces</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) David Roundy <droundy@darcs.net></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 : none</span>
<a name="line-8"></a><span class='hs-comment'>-- Stability : unstable</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 add and delete workspaces. Note that you may only</span>
<a name="line-12"></a><span class='hs-comment'>-- delete a workspace that is already empty.</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-15"></a>
<a name="line-16"></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'>DynamicWorkspaces</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-18"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-19"></a> <span class='hs-varid'>addWorkspace</span><span class='hs-layout'>,</span> <span class='hs-varid'>removeWorkspace</span><span class='hs-layout'>,</span>
<a name="line-20"></a> <span class='hs-varid'>addHiddenWorkspace</span><span class='hs-layout'>,</span>
<a name="line-21"></a> <span class='hs-varid'>withWorkspace</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>selectWorkspace</span><span class='hs-layout'>,</span> <span class='hs-varid'>renameWorkspace</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>toNthWorkspace</span><span class='hs-layout'>,</span> <span class='hs-varid'>withNthWorkspace</span>
<a name="line-24"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-25"></a>
<a name="line-26"></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-27"></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> <span class='hs-varid'>modify</span><span class='hs-layout'>,</span> <span class='hs-varid'>delete</span><span class='hs-layout'>)</span>
<a name="line-28"></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>
<a name="line-29"></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-conid'>XPConfig</span><span class='hs-layout'>,</span> <span class='hs-varid'>mkXPrompt</span><span class='hs-layout'>,</span> <span class='hs-conid'>XPrompt</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-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-31"></a>
<a name="line-32"></a><span class='hs-comment'>-- $usage</span>
<a name="line-33"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@ file:</span>
<a name="line-34"></a><span class='hs-comment'>--</span>
<a name="line-35"></a><span class='hs-comment'>-- > import XMonad.Actions.DynamicWorkspaces</span>
<a name="line-36"></a><span class='hs-comment'>--</span>
<a name="line-37"></a><span class='hs-comment'>-- Then add keybindings like the following:</span>
<a name="line-38"></a><span class='hs-comment'>--</span>
<a name="line-39"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_BackSpace), removeWorkspace)</span>
<a name="line-40"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_v ), selectWorkspace defaultXPConfig)</span>
<a name="line-41"></a><span class='hs-comment'>-- > , ((modm, xK_m ), withWorkspace defaultXPConfig (windows . W.shift))</span>
<a name="line-42"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_m ), withWorkspace defaultXPConfig (windows . copy))</span>
<a name="line-43"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_r ), renameWorkspace defaultXPConfig)</span>
<a name="line-44"></a><span class='hs-comment'>--</span>
<a name="line-45"></a><span class='hs-comment'>-- > -- mod-[1..9] %! Switch to workspace N</span>
<a name="line-46"></a><span class='hs-comment'>-- > -- mod-shift-[1..9] %! Move client to workspace N</span>
<a name="line-47"></a><span class='hs-comment'>-- > ++</span>
<a name="line-48"></a><span class='hs-comment'>-- > zip (zip (repeat (modm)) [xK_1..xK_9]) (map (withNthWorkspace W.greedyView) [0..])</span>
<a name="line-49"></a><span class='hs-comment'>-- > ++</span>
<a name="line-50"></a><span class='hs-comment'>-- > zip (zip (repeat (modm .|. shiftMask)) [xK_1..xK_9]) (map (withNthWorkspace W.shift) [0..])</span>
<a name="line-51"></a><span class='hs-comment'>--</span>
<a name="line-52"></a><span class='hs-comment'>-- For detailed instructions on editing your key bindings, see</span>
<a name="line-53"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-54"></a>
<a name="line-55"></a>
<a name="line-56"></a><a name="Wor"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Wor</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Wor</span> <span class='hs-conid'>String</span>
<a name="line-57"></a>
<a name="line-58"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>XPrompt</span> <span class='hs-conid'>Wor</span> <span class='hs-keyword'>where</span>
<a name="line-59"></a> <span class='hs-varid'>showXPrompt</span> <span class='hs-layout'>(</span><span class='hs-conid'>Wor</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-60"></a>
<a name="line-61"></a><a name="mkCompl"></a><span class='hs-definition'>mkCompl</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-62"></a><span class='hs-definition'>mkCompl</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>take</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varid'>l</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="withWorkspace"></a><span class='hs-definition'>withWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>XPConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>String</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-65"></a><span class='hs-definition'>withWorkspace</span> <span class='hs-varid'>c</span> <span class='hs-varid'>job</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-layout'>(</span><span class='hs-varid'>workspaces</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-66"></a> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSortByIndex</span>
<a name="line-67"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>tag</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sort</span> <span class='hs-varid'>ws</span>
<a name="line-68"></a> <span class='hs-varid'>job'</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>t</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>job</span> <span class='hs-varid'>t</span>
<a name="line-69"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addHiddenWorkspace</span> <span class='hs-varid'>t</span> <span class='hs-varop'>>></span> <span class='hs-varid'>job</span> <span class='hs-varid'>t</span>
<a name="line-70"></a> <span class='hs-varid'>mkXPrompt</span> <span class='hs-layout'>(</span><span class='hs-conid'>Wor</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkCompl</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-varid'>job'</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="renameWorkspace"></a><span class='hs-definition'>renameWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>XPConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-73"></a><span class='hs-definition'>renameWorkspace</span> <span class='hs-varid'>conf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>workspacePrompt</span> <span class='hs-varid'>conf</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span>
<a name="line-74"></a> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>let</span> <span class='hs-varid'>sett</span> <span class='hs-varid'>wk</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>wk</span> <span class='hs-layout'>{</span> <span class='hs-varid'>tag</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span> <span class='hs-layout'>}</span>
<a name="line-75"></a> <span class='hs-varid'>setscr</span> <span class='hs-varid'>scr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scr</span> <span class='hs-layout'>{</span> <span class='hs-varid'>workspace</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sett</span> <span class='hs-varop'>$</span> <span class='hs-varid'>workspace</span> <span class='hs-varid'>scr</span> <span class='hs-layout'>}</span>
<a name="line-76"></a> <span class='hs-varid'>sets</span> <span class='hs-varid'>q</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>q</span> <span class='hs-layout'>{</span> <span class='hs-varid'>current</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>setscr</span> <span class='hs-varop'>$</span> <span class='hs-varid'>current</span> <span class='hs-varid'>q</span> <span class='hs-layout'>}</span>
<a name="line-77"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>sets</span> <span class='hs-varop'>$</span> <span class='hs-varid'>removeWorkspace'</span> <span class='hs-varid'>w</span> <span class='hs-varid'>s</span>
<a name="line-78"></a>
<a name="line-79"></a><a name="toNthWorkspace"></a><span class='hs-definition'>toNthWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</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'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-80"></a><span class='hs-definition'>toNthWorkspace</span> <span class='hs-varid'>job</span> <span class='hs-varid'>wnum</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSortByIndex</span>
<a name="line-81"></a> <span class='hs-varid'>ws</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'>sort</span> <span class='hs-varop'>.</span> <span class='hs-varid'>workspaces</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-82"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>drop</span> <span class='hs-varid'>wnum</span> <span class='hs-varid'>ws</span> <span class='hs-keyword'>of</span>
<a name="line-83"></a> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>job</span> <span class='hs-varid'>w</span>
<a name="line-84"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-85"></a>
<a name="line-86"></a><a name="withNthWorkspace"></a><span class='hs-definition'>withNthWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</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> <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-87"></a><span class='hs-definition'>withNthWorkspace</span> <span class='hs-varid'>job</span> <span class='hs-varid'>wnum</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>sort</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getSortByIndex</span>
<a name="line-88"></a> <span class='hs-varid'>ws</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'>sort</span> <span class='hs-varop'>.</span> <span class='hs-varid'>workspaces</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-89"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>drop</span> <span class='hs-varid'>wnum</span> <span class='hs-varid'>ws</span> <span class='hs-keyword'>of</span>
<a name="line-90"></a> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-varid'>job</span> <span class='hs-varid'>w</span>
<a name="line-91"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-92"></a>
<a name="line-93"></a><a name="selectWorkspace"></a><span class='hs-definition'>selectWorkspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>XPConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-94"></a><span class='hs-definition'>selectWorkspace</span> <span class='hs-varid'>conf</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>workspacePrompt</span> <span class='hs-varid'>conf</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>w</span> <span class='hs-keyglyph'>-></span>
<a name="line-95"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-varid'>windowset</span>
<a name="line-96"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>tagMember</span> <span class='hs-varid'>w</span> <span class='hs-varid'>s</span>
<a name="line-97"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-varid'>greedyView</span> <span class='hs-varid'>w</span>
<a name="line-98"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>addWorkspace</span> <span class='hs-varid'>w</span>
<a name="line-99"></a>
<a name="line-100"></a><a name="addWorkspace"></a><span class='hs-comment'>-- | Add a new workspace with the given name.</span>
<a name="line-101"></a><span class='hs-definition'>addWorkspace</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-102"></a><span class='hs-definition'>addWorkspace</span> <span class='hs-varid'>newtag</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addHiddenWorkspace</span> <span class='hs-varid'>newtag</span> <span class='hs-varop'>>></span> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>greedyView</span> <span class='hs-varid'>newtag</span><span class='hs-layout'>)</span>
<a name="line-103"></a>
<a name="line-104"></a>
<a name="line-105"></a><a name="addHiddenWorkspace"></a><span class='hs-comment'>-- | Add a new hidden workspace with the given name.</span>
<a name="line-106"></a><span class='hs-definition'>addHiddenWorkspace</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-107"></a><span class='hs-definition'>addHiddenWorkspace</span> <span class='hs-varid'>newtag</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>asks</span> <span class='hs-layout'>(</span><span class='hs-varid'>layoutHook</span> <span class='hs-varop'>.</span> <span class='hs-varid'>config</span><span class='hs-layout'>)</span>
<a name="line-108"></a> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>addHiddenWorkspace'</span> <span class='hs-varid'>newtag</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-109"></a>
<a name="line-110"></a><a name="removeWorkspace"></a><span class='hs-comment'>-- | Remove the current workspace if it contains no windows.</span>
<a name="line-111"></a><span class='hs-definition'>removeWorkspace</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'>removeWorkspace</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'>gets</span> <span class='hs-varid'>windowset</span>
<a name="line-113"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>of</span>
<a name="line-114"></a> <span class='hs-conid'>StackSet</span> <span class='hs-layout'>{</span> <span class='hs-varid'>current</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Screen</span> <span class='hs-layout'>{</span> <span class='hs-varid'>workspace</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>torem</span> <span class='hs-layout'>}</span>
<a name="line-115"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-116"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-varid'>view</span> <span class='hs-layout'>(</span><span class='hs-varid'>tag</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>removeWorkspace'</span> <span class='hs-layout'>(</span><span class='hs-varid'>tag</span> <span class='hs-varid'>torem</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-118"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-119"></a>
<a name="line-120"></a><a name="addHiddenWorkspace'"></a><span class='hs-definition'>addHiddenWorkspace'</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StackSet</span> <span class='hs-varid'>i</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>sid</span> <span class='hs-varid'>sd</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StackSet</span> <span class='hs-varid'>i</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>sid</span> <span class='hs-varid'>sd</span>
<a name="line-121"></a><span class='hs-definition'>addHiddenWorkspace'</span> <span class='hs-varid'>newtag</span> <span class='hs-varid'>l</span> <span class='hs-varid'>s</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>StackSet</span> <span class='hs-layout'>{</span> <span class='hs-varid'>hidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ws</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>hidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Workspace</span> <span class='hs-varid'>newtag</span> <span class='hs-varid'>l</span> <span class='hs-conid'>Nothing</span><span class='hs-conop'>:</span><span class='hs-varid'>ws</span> <span class='hs-layout'>}</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="removeWorkspace'"></a><span class='hs-definition'>removeWorkspace'</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-varid'>i</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StackSet</span> <span class='hs-varid'>i</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>sid</span> <span class='hs-varid'>sd</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>StackSet</span> <span class='hs-varid'>i</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>sid</span> <span class='hs-varid'>sd</span>
<a name="line-124"></a><span class='hs-definition'>removeWorkspace'</span> <span class='hs-varid'>torem</span> <span class='hs-varid'>s</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>StackSet</span> <span class='hs-layout'>{</span> <span class='hs-varid'>current</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scr</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Screen</span> <span class='hs-layout'>{</span> <span class='hs-varid'>workspace</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>wc</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-125"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-conop'>:</span><span class='hs-varid'>ws</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-126"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>tag</span> <span class='hs-varid'>w</span> <span class='hs-varop'>==</span> <span class='hs-varid'>torem</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-layout'>{</span> <span class='hs-varid'>current</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>scr</span> <span class='hs-layout'>{</span> <span class='hs-varid'>workspace</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>wc</span> <span class='hs-layout'>{</span> <span class='hs-varid'>stack</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>meld</span> <span class='hs-layout'>(</span><span class='hs-varid'>stack</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>stack</span> <span class='hs-varid'>wc</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span> <span class='hs-layout'>}</span>
<a name="line-127"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ws</span> <span class='hs-layout'>}</span>
<a name="line-128"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>meld</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-129"></a> <span class='hs-varid'>meld</span> <span class='hs-varid'>x</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-130"></a> <span class='hs-varid'>meld</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-131"></a> <span class='hs-varid'>meld</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>differentiate</span> <span class='hs-layout'>(</span><span class='hs-varid'>integrate</span> <span class='hs-varid'>x</span> <span class='hs-varop'>++</span> <span class='hs-varid'>integrate</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-132"></a><span class='hs-definition'>removeWorkspace'</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span>
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