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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.Plane</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Marco Túlio Gontijo e Silva <marcot@riseup.net>,</span>
<a name="line-5"></a><span class='hs-comment'>-- Leonardo Serra <leoserra@minaslivre.org></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 : Marco Túlio Gontijo e Silva <marcot@riseup.net></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'>-- This module has functions to navigate through workspaces in a bidimensional</span>
<a name="line-13"></a><span class='hs-comment'>-- manner. It allows the organization of workspaces in lines, and provides</span>
<a name="line-14"></a><span class='hs-comment'>-- functions to move and shift windows in all four directions (left, up, right</span>
<a name="line-15"></a><span class='hs-comment'>-- and down) possible in a surface.</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-- This functionality was inspired by GNOME (finite) and KDE (infinite)</span>
<a name="line-18"></a><span class='hs-comment'>-- keybindings for workspace navigation, and by "XMonad.Actions.CycleWS" for</span>
<a name="line-19"></a><span class='hs-comment'>-- the idea of applying this approach to XMonad.</span>
<a name="line-20"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-21"></a>
<a name="line-22"></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'>Plane</span>
<a name="line-23"></a> <span class='hs-layout'>(</span>
<a name="line-24"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-25"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-26"></a>
<a name="line-27"></a> <span class='hs-comment'>-- * Data types</span>
<a name="line-28"></a> <span class='hs-conid'>Direction</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Limits</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Lines</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-31"></a>
<a name="line-32"></a> <span class='hs-comment'>-- * Key bindings</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>planeKeys</span>
<a name="line-34"></a>
<a name="line-35"></a> <span class='hs-comment'>-- * Navigating through workspaces</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>planeShift</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>planeMove</span>
<a name="line-38"></a> <span class='hs-layout'>)</span>
<a name="line-39"></a> <span class='hs-keyword'>where</span>
<a name="line-40"></a>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>split</span><span class='hs-layout'>)</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-47"></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'>workspaces</span><span class='hs-layout'>)</span>
<a name="line-48"></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'>Run</span>
<a name="line-49"></a>
<a name="line-50"></a><span class='hs-comment'>-- $usage</span>
<a name="line-51"></a><span class='hs-comment'>-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@ file:</span>
<a name="line-52"></a><span class='hs-comment'>--</span>
<a name="line-53"></a><span class='hs-comment'>-- > import XMonad.Actions.Plane</span>
<a name="line-54"></a><span class='hs-comment'>-- ></span>
<a name="line-55"></a><span class='hs-comment'>-- > main = xmonad defaultConfig {keys = myKeys}</span>
<a name="line-56"></a><span class='hs-comment'>-- ></span>
<a name="line-57"></a><span class='hs-comment'>-- > myKeys conf = union (keys defaultConfig conf) $ myNewKeys conf</span>
<a name="line-58"></a><span class='hs-comment'>-- ></span>
<a name="line-59"></a><span class='hs-comment'>-- > myNewkeys (XConfig {modMask = modm}) = planeKeys modm (Lines 3) Finite</span>
<a name="line-60"></a><span class='hs-comment'>--</span>
<a name="line-61"></a><span class='hs-comment'>-- For detailed instructions on editing your key bindings, see</span>
<a name="line-62"></a><span class='hs-comment'>-- "XMonad.Doc.Extending#Editing_key_bindings".</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="Direction"></a><span class='hs-comment'>-- | Direction to go in the plane.</span>
<a name="line-65"></a><a name="Direction"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Direction</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ToLeft</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ToUp</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ToRight</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ToDown</span> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Enum</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="Limits"></a><span class='hs-comment'>-- | Defines the behaviour when you're trying to move out of the limits.</span>
<a name="line-68"></a><a name="Limits"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Limits</span>
<a name="line-69"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Finite</span> <span class='hs-comment'>-- ^ Ignore the function call, and keep in the same workspace.</span>
<a name="line-70"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Circular</span> <span class='hs-comment'>-- ^ Get on the other side, like in the Snake game.</span>
<a name="line-71"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Linear</span> <span class='hs-comment'>-- ^ The plan comes as a row, so it goes to the next or prev if</span>
<a name="line-72"></a> <span class='hs-comment'>-- the workspaces were numbered.</span>
<a name="line-73"></a> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Eq</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="Lines"></a><span class='hs-comment'>-- | The number of lines in which the workspaces will be arranged. It's</span>
<a name="line-76"></a><a name="Lines"></a><span class='hs-comment'>-- possible to use a number of lines that is not a divisor of the number of</span>
<a name="line-77"></a><a name="Lines"></a><span class='hs-comment'>-- workspaces, but the results are better when using a divisor. If it's not a</span>
<a name="line-78"></a><a name="Lines"></a><span class='hs-comment'>-- divisor, the last line will have the remaining workspaces.</span>
<a name="line-79"></a><a name="Lines"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Lines</span>
<a name="line-80"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GConf</span> <span class='hs-comment'>-- ^ Use @gconftool-2@ to find out the number of lines.</span>
<a name="line-81"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Lines</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Specify the number of lines explicitly.</span>
<a name="line-82"></a>
<a name="line-83"></a><a name="planeKeys"></a><span class='hs-comment'>-- | This is the way most people would like to use this module. It attaches the</span>
<a name="line-84"></a><span class='hs-comment'>-- 'KeyMask' passed as a parameter with 'xK_Left', 'xK_Up', 'xK_Right' and</span>
<a name="line-85"></a><span class='hs-comment'>-- 'xK_Down', associating it with 'planeMove' to the corresponding 'Direction'.</span>
<a name="line-86"></a><span class='hs-comment'>-- It also associates these bindings with 'shiftMask' to 'planeShift'.</span>
<a name="line-87"></a><span class='hs-definition'>planeKeys</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>KeyMask</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Lines</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Limits</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Map</span> <span class='hs-layout'>(</span><span class='hs-conid'>KeyMask</span><span class='hs-layout'>,</span> <span class='hs-conid'>KeySym</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>X</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-88"></a><span class='hs-definition'>planeKeys</span> <span class='hs-varid'>modm</span> <span class='hs-varid'>ln</span> <span class='hs-varid'>limits</span> <span class='hs-keyglyph'>=</span>
<a name="line-89"></a> <span class='hs-varid'>fromList</span> <span class='hs-varop'>$</span>
<a name="line-90"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>keyMask</span><span class='hs-layout'>,</span> <span class='hs-varid'>keySym</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>function</span> <span class='hs-varid'>ln</span> <span class='hs-varid'>limits</span> <span class='hs-varid'>direction</span><span class='hs-layout'>)</span>
<a name="line-91"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>keySym</span><span class='hs-layout'>,</span> <span class='hs-varid'>direction</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>zip</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>xK_Left</span> <span class='hs-keyglyph'>..</span> <span class='hs-varid'>xK_Down</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>$</span> <span class='hs-varid'>enumFrom</span> <span class='hs-conid'>ToLeft</span>
<a name="line-92"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>keyMask</span><span class='hs-layout'>,</span> <span class='hs-varid'>function</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span><span class='hs-layout'>,</span> <span class='hs-varid'>planeMove</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>shiftMask</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>modm</span><span class='hs-layout'>,</span> <span class='hs-varid'>planeShift</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-93"></a> <span class='hs-keyglyph'>]</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="planeShift"></a><span class='hs-comment'>-- | Shift a window to the next workspace in 'Direction'. Note that this will</span>
<a name="line-96"></a><span class='hs-comment'>-- also move to the next workspace. It's a good idea to use the same 'Lines'</span>
<a name="line-97"></a><span class='hs-comment'>-- and 'Limits' for all the bindings.</span>
<a name="line-98"></a><span class='hs-definition'>planeShift</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Lines</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Limits</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction</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'>planeShift</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>plane</span> <span class='hs-varid'>shift'</span>
<a name="line-100"></a>
<a name="line-101"></a><a name="shift'"></a><span class='hs-definition'>shift'</span> <span class='hs-keyglyph'>::</span>
<a name="line-102"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>s</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-conid'>Ord</span> <span class='hs-varid'>a</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'>s</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'>s</span> <span class='hs-varid'>sd</span>
<a name="line-103"></a><span class='hs-definition'>shift'</span> <span class='hs-varid'>area</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>greedyView</span> <span class='hs-varid'>area</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shift</span> <span class='hs-varid'>area</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="planeMove"></a><span class='hs-comment'>-- | Move to the next workspace in 'Direction'.</span>
<a name="line-106"></a><span class='hs-definition'>planeMove</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Lines</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Limits</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction</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'>planeMove</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>plane</span> <span class='hs-varid'>greedyView</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="plane"></a><span class='hs-definition'>plane</span> <span class='hs-keyglyph'>::</span>
<a name="line-110"></a> <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> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Lines</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Limits</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction</span> <span class='hs-keyglyph'>-></span>
<a name="line-111"></a> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-112"></a><span class='hs-definition'>plane</span> <span class='hs-varid'>function</span> <span class='hs-varid'>numberLines_</span> <span class='hs-varid'>limits</span> <span class='hs-varid'>direction</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-113"></a> <span class='hs-varid'>st</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>get</span>
<a name="line-114"></a> <span class='hs-varid'>xconf</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ask</span>
<a name="line-115"></a>
<a name="line-116"></a> <span class='hs-varid'>numberLines</span> <span class='hs-keyglyph'><-</span>
<a name="line-117"></a> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span>
<a name="line-118"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>numberLines_</span> <span class='hs-keyword'>of</span>
<a name="line-119"></a> <span class='hs-conid'>Lines</span> <span class='hs-varid'>numberLines__</span> <span class='hs-keyglyph'>-></span>
<a name="line-120"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>numberLines__</span>
<a name="line-121"></a> <span class='hs-conid'>GConf</span> <span class='hs-keyglyph'>-></span>
<a name="line-122"></a> <span class='hs-keyword'>do</span>
<a name="line-123"></a> <span class='hs-varid'>numberLines__</span> <span class='hs-keyglyph'><-</span>
<a name="line-124"></a> <span class='hs-varid'>runProcessWithInput</span> <span class='hs-varid'>gconftool</span> <span class='hs-varid'>parameters</span> <span class='hs-str'>""</span>
<a name="line-125"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>reads</span> <span class='hs-varid'>numberLines__</span> <span class='hs-keyword'>of</span>
<a name="line-126"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>numberRead</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>numberRead</span>
<a name="line-127"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span>
<a name="line-128"></a> <span class='hs-keyword'>do</span>
<a name="line-129"></a> <span class='hs-varid'>trace</span> <span class='hs-varop'>$</span>
<a name="line-130"></a> <span class='hs-str'>"XMonad.Actions.Plane: Could not parse the output of "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>gconftool</span> <span class='hs-varop'>++</span>
<a name="line-131"></a> <span class='hs-varid'>unwords</span> <span class='hs-varid'>parameters</span> <span class='hs-varop'>++</span> <span class='hs-str'>": "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>numberLines__</span> <span class='hs-varop'>++</span> <span class='hs-str'>"; assuming 1."</span>
<a name="line-132"></a> <span class='hs-varid'>return</span> <span class='hs-num'>1</span>
<a name="line-133"></a>
<a name="line-134"></a> <span class='hs-keyword'>let</span>
<a name="line-135"></a> <span class='hs-varid'>notBorder</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span>
<a name="line-136"></a> <span class='hs-varid'>notBorder</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>replicate</span> <span class='hs-num'>2</span> <span class='hs-layout'>(</span><span class='hs-varid'>circular_</span> <span class='hs-varop'><</span> <span class='hs-varid'>currentWS</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-varid'>replicate</span> <span class='hs-num'>2</span> <span class='hs-layout'>(</span><span class='hs-varid'>circular_</span> <span class='hs-varop'>></span> <span class='hs-varid'>currentWS</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>!!</span> <span class='hs-varid'>fromEnum</span> <span class='hs-varid'>direction</span>
<a name="line-137"></a>
<a name="line-138"></a> <span class='hs-varid'>circular_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-139"></a> <span class='hs-varid'>circular_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>circular</span> <span class='hs-varid'>currentWS</span>
<a name="line-140"></a>
<a name="line-141"></a> <span class='hs-varid'>circular</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-142"></a> <span class='hs-varid'>circular</span> <span class='hs-keyglyph'>=</span>
<a name="line-143"></a> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>onLine</span> <span class='hs-varid'>pred</span>
<a name="line-144"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>pred</span>
<a name="line-145"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>onLine</span> <span class='hs-varid'>succ</span>
<a name="line-146"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>succ</span>
<a name="line-147"></a> <span class='hs-keyglyph'>]</span>
<a name="line-148"></a> <span class='hs-varop'>!!</span> <span class='hs-varid'>fromEnum</span> <span class='hs-varid'>direction</span>
<a name="line-149"></a>
<a name="line-150"></a> <span class='hs-varid'>linear</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-151"></a> <span class='hs-varid'>linear</span> <span class='hs-keyglyph'>=</span>
<a name="line-152"></a> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>onLine</span> <span class='hs-varid'>pred</span> <span class='hs-varop'>.</span> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>pred</span>
<a name="line-153"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>pred</span> <span class='hs-varop'>.</span> <span class='hs-varid'>onLine</span> <span class='hs-varid'>pred</span>
<a name="line-154"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>onLine</span> <span class='hs-varid'>succ</span> <span class='hs-varop'>.</span> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>succ</span>
<a name="line-155"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>succ</span> <span class='hs-varop'>.</span> <span class='hs-varid'>onLine</span> <span class='hs-varid'>succ</span>
<a name="line-156"></a> <span class='hs-keyglyph'>]</span>
<a name="line-157"></a> <span class='hs-varop'>!!</span> <span class='hs-varid'>fromEnum</span> <span class='hs-varid'>direction</span>
<a name="line-158"></a>
<a name="line-159"></a> <span class='hs-varid'>onLine</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</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'>Int</span>
<a name="line-160"></a> <span class='hs-varid'>onLine</span> <span class='hs-varid'>f</span> <span class='hs-varid'>currentWS_</span>
<a name="line-161"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>line</span> <span class='hs-varop'><</span> <span class='hs-varid'>areasLine</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mod_</span> <span class='hs-varid'>columns</span>
<a name="line-162"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mod_</span> <span class='hs-varid'>areasColumn</span>
<a name="line-163"></a> <span class='hs-keyword'>where</span>
<a name="line-164"></a> <span class='hs-varid'>line</span><span class='hs-layout'>,</span> <span class='hs-varid'>column</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-165"></a> <span class='hs-layout'>(</span><span class='hs-varid'>line</span><span class='hs-layout'>,</span> <span class='hs-varid'>column</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>split</span> <span class='hs-varid'>currentWS_</span>
<a name="line-166"></a>
<a name="line-167"></a> <span class='hs-varid'>mod_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-168"></a> <span class='hs-varid'>mod_</span> <span class='hs-varid'>columns_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compose</span> <span class='hs-varid'>line</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mod</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>column</span><span class='hs-layout'>)</span> <span class='hs-varid'>columns_</span>
<a name="line-169"></a>
<a name="line-170"></a> <span class='hs-varid'>onColumn</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-171"></a> <span class='hs-varid'>onColumn</span> <span class='hs-varid'>f</span> <span class='hs-varid'>currentWS_</span>
<a name="line-172"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>column</span> <span class='hs-varop'><</span> <span class='hs-varid'>areasColumn</span> <span class='hs-varop'>||</span> <span class='hs-varid'>areasColumn</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mod_</span> <span class='hs-varid'>numberLines</span>
<a name="line-173"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mod_</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pred</span> <span class='hs-varid'>numberLines</span>
<a name="line-174"></a> <span class='hs-keyword'>where</span>
<a name="line-175"></a> <span class='hs-varid'>line</span><span class='hs-layout'>,</span> <span class='hs-varid'>column</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-176"></a> <span class='hs-layout'>(</span><span class='hs-varid'>line</span><span class='hs-layout'>,</span> <span class='hs-varid'>column</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>split</span> <span class='hs-varid'>currentWS_</span>
<a name="line-177"></a>
<a name="line-178"></a> <span class='hs-varid'>mod_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-179"></a> <span class='hs-varid'>mod_</span> <span class='hs-varid'>lines_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compose</span> <span class='hs-layout'>(</span><span class='hs-varid'>mod</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>line</span><span class='hs-layout'>)</span> <span class='hs-varid'>lines_</span><span class='hs-layout'>)</span> <span class='hs-varid'>column</span>
<a name="line-180"></a>
<a name="line-181"></a> <span class='hs-varid'>compose</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-182"></a> <span class='hs-varid'>compose</span> <span class='hs-varid'>line</span> <span class='hs-varid'>column</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>line</span> <span class='hs-varop'>*</span> <span class='hs-varid'>columns</span> <span class='hs-varop'>+</span> <span class='hs-varid'>column</span>
<a name="line-183"></a>
<a name="line-184"></a> <span class='hs-varid'>split</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-185"></a> <span class='hs-varid'>split</span> <span class='hs-varid'>currentWS_</span> <span class='hs-keyglyph'>=</span>
<a name="line-186"></a> <span class='hs-layout'>(</span><span class='hs-varid'>operation</span> <span class='hs-varid'>div</span><span class='hs-layout'>,</span> <span class='hs-varid'>operation</span> <span class='hs-varid'>mod</span><span class='hs-layout'>)</span>
<a name="line-187"></a> <span class='hs-keyword'>where</span>
<a name="line-188"></a> <span class='hs-varid'>operation</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-189"></a> <span class='hs-varid'>operation</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>currentWS_</span> <span class='hs-varid'>columns</span>
<a name="line-190"></a>
<a name="line-191"></a> <span class='hs-varid'>areasLine</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-192"></a> <span class='hs-varid'>areasLine</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>div</span> <span class='hs-varid'>areas</span> <span class='hs-varid'>columns</span>
<a name="line-193"></a>
<a name="line-194"></a> <span class='hs-varid'>areasColumn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-195"></a> <span class='hs-varid'>areasColumn</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mod</span> <span class='hs-varid'>areas</span> <span class='hs-varid'>columns</span>
<a name="line-196"></a>
<a name="line-197"></a> <span class='hs-varid'>columns</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-198"></a> <span class='hs-varid'>columns</span> <span class='hs-keyglyph'>=</span>
<a name="line-199"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>mod</span> <span class='hs-varid'>areas</span> <span class='hs-varid'>numberLines</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>preColumns</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>preColumns</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span>
<a name="line-200"></a>
<a name="line-201"></a> <span class='hs-varid'>currentWS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-202"></a> <span class='hs-varid'>currentWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromJust</span> <span class='hs-varid'>mCurrentWS</span>
<a name="line-203"></a>
<a name="line-204"></a> <span class='hs-varid'>preColumns</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-205"></a> <span class='hs-varid'>preColumns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>div</span> <span class='hs-varid'>areas</span> <span class='hs-varid'>numberLines</span>
<a name="line-206"></a>
<a name="line-207"></a> <span class='hs-varid'>mCurrentWS</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Int</span>
<a name="line-208"></a> <span class='hs-varid'>mCurrentWS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>elemIndex</span> <span class='hs-layout'>(</span><span class='hs-varid'>currentTag</span> <span class='hs-varop'>$</span> <span class='hs-varid'>windowset</span> <span class='hs-varid'>st</span><span class='hs-layout'>)</span> <span class='hs-varid'>areaNames</span>
<a name="line-209"></a>
<a name="line-210"></a> <span class='hs-varid'>areas</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-211"></a> <span class='hs-varid'>areas</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>areaNames</span>
<a name="line-212"></a>
<a name="line-213"></a> <span class='hs-varid'>run</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-214"></a> <span class='hs-varid'>run</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-varid'>function</span> <span class='hs-varop'>$</span> <span class='hs-varid'>areaNames</span> <span class='hs-varop'>!!</span> <span class='hs-varid'>f</span> <span class='hs-varid'>currentWS</span>
<a name="line-215"></a>
<a name="line-216"></a> <span class='hs-varid'>areaNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-217"></a> <span class='hs-varid'>areaNames</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>workspaces</span> <span class='hs-varop'>$</span> <span class='hs-varid'>config</span> <span class='hs-varid'>xconf</span>
<a name="line-218"></a>
<a name="line-219"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>isJust</span> <span class='hs-varid'>mCurrentWS</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-220"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>limits</span> <span class='hs-keyword'>of</span>
<a name="line-221"></a> <span class='hs-conid'>Finite</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>when</span> <span class='hs-varid'>notBorder</span> <span class='hs-varop'>$</span> <span class='hs-varid'>run</span> <span class='hs-varid'>circular</span>
<a name="line-222"></a> <span class='hs-conid'>Circular</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>run</span> <span class='hs-varid'>circular</span>
<a name="line-223"></a> <span class='hs-conid'>Linear</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>notBorder</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>run</span> <span class='hs-varid'>circular</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>run</span> <span class='hs-varid'>linear</span>
<a name="line-224"></a>
<a name="line-225"></a><a name="gconftool"></a><span class='hs-definition'>gconftool</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-226"></a><span class='hs-definition'>gconftool</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"gconftool-2"</span>
<a name="line-227"></a>
<a name="line-228"></a><a name="parameters"></a><span class='hs-definition'>parameters</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-229"></a><span class='hs-definition'>parameters</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"--get"</span><span class='hs-layout'>,</span> <span class='hs-str'>"/apps/panel/applets/workspace_switcher_screen0/prefs/num_rows"</span><span class='hs-keyglyph'>]</span>
</pre></body>
</html>
