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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-2"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : XMonad.Actions.TopicSpace</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Nicolas Pouillard</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD-style (see LICENSE)</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : Nicolas Pouillard <nicolas.pouillard@gmail.com></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'>-- Turns your workspaces into a more topic oriented system.</span>
<a name="line-13"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-14"></a>
<a name="line-15"></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'>TopicSpace</span>
<a name="line-16"></a> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-comment'>-- * Overview</span>
<a name="line-18"></a> <span class='hs-comment'>-- $overview</span>
<a name="line-19"></a>
<a name="line-20"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-21"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-22"></a> <span class='hs-conid'>Topic</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Dir</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>TopicConfig</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultTopicConfig</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getLastFocusedTopics</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setLastFocusedTopic</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reverseLastFocusedTopics</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>pprWindowSet</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>topicActionWithPrompt</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>topicAction</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>currentTopicAction</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>switchTopic</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>switchNthLastFocused</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>shiftNthLastFocused</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>currentTopicDir</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>checkTopicConfig</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>>*></span><span class='hs-layout'>)</span>
<a name="line-39"></a> <span class='hs-layout'>)</span>
<a name="line-40"></a><span class='hs-keyword'>where</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-43"></a>
<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'>List</span>
<a name="line-45"></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> <span class='hs-varid'>isNothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>listToMaybe</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromJust</span><span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Ord</span>
<a name="line-47"></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-48"></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'>liftM2</span><span class='hs-layout'>,</span><span class='hs-varid'>when</span><span class='hs-layout'>,</span><span class='hs-varid'>unless</span><span class='hs-layout'>,</span><span class='hs-varid'>replicateM_</span><span class='hs-layout'>)</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span>
<a name="line-50"></a>
<a name="line-51"></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-52"></a>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Prompt</span>
<a name="line-54"></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-55"></a>
<a name="line-56"></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'>UrgencyHook</span>
<a name="line-57"></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-58"></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'>Hooks</span><span class='hs-varop'>.</span><span class='hs-conid'>DynamicLog</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>DL</span>
<a name="line-59"></a>
<a name="line-60"></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> <span class='hs-layout'>(</span><span class='hs-varid'>spawnPipe</span><span class='hs-layout'>)</span>
<a name="line-61"></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-62"></a>
<a name="line-63"></a><span class='hs-comment'>-- $overview</span>
<a name="line-64"></a><span class='hs-comment'>-- This module allows to organize your workspaces on a precise topic basis. So</span>
<a name="line-65"></a><span class='hs-comment'>-- instead of having a workspace called `work' you can setup one workspace per</span>
<a name="line-66"></a><span class='hs-comment'>-- task. Here we call these workspaces, topics. The great thing with</span>
<a name="line-67"></a><span class='hs-comment'>-- topics is that one can attach a directory that makes sense to each</span>
<a name="line-68"></a><span class='hs-comment'>-- particular topic. One can also attach an action which will be triggered</span>
<a name="line-69"></a><span class='hs-comment'>-- when switching to a topic that does not have any windows in it. So you can</span>
<a name="line-70"></a><span class='hs-comment'>-- attach your mail client to the mail topic, some terminals in the right</span>
<a name="line-71"></a><span class='hs-comment'>-- directory to the xmonad topic... This package also provides a nice way to</span>
<a name="line-72"></a><span class='hs-comment'>-- display your topics in an historical way using a custom `pprWindowSet'</span>
<a name="line-73"></a><span class='hs-comment'>-- function. You can also easily switch to recent topics using this history</span>
<a name="line-74"></a><span class='hs-comment'>-- of last focused topics.</span>
<a name="line-75"></a>
<a name="line-76"></a><span class='hs-comment'>-- $usage</span>
<a name="line-77"></a><span class='hs-comment'>-- Here is an example of configuration using TopicSpace:</span>
<a name="line-78"></a><span class='hs-comment'>--</span>
<a name="line-79"></a><span class='hs-comment'>-- > -- The list of all topics/workspaces of your xmonad configuration.</span>
<a name="line-80"></a><span class='hs-comment'>-- > -- The order is important, new topics must be inserted</span>
<a name="line-81"></a><span class='hs-comment'>-- > -- at the end of the list if you want hot-restarting</span>
<a name="line-82"></a><span class='hs-comment'>-- > -- to work.</span>
<a name="line-83"></a><span class='hs-comment'>-- > myTopics :: [Topic]</span>
<a name="line-84"></a><span class='hs-comment'>-- > myTopics =</span>
<a name="line-85"></a><span class='hs-comment'>-- > [ "dashboard" -- the first one</span>
<a name="line-86"></a><span class='hs-comment'>-- > , "admin", "build", "cleaning", "conf", "darcs", "haskell", "irc"</span>
<a name="line-87"></a><span class='hs-comment'>-- > , "mail", "movie", "music", "talk", "text", "tools", "web", "xmonad"</span>
<a name="line-88"></a><span class='hs-comment'>-- > , "yi", "documents", "twitter", "pdf"</span>
<a name="line-89"></a><span class='hs-comment'>-- > ]</span>
<a name="line-90"></a><span class='hs-comment'>-- ></span>
<a name="line-91"></a><span class='hs-comment'>-- > myTopicConfig :: TopicConfig</span>
<a name="line-92"></a><span class='hs-comment'>-- > myTopicConfig = defaultTopicConfig</span>
<a name="line-93"></a><span class='hs-comment'>-- > { topicDirs = M.fromList $</span>
<a name="line-94"></a><span class='hs-comment'>-- > [ ("conf", "w/conf")</span>
<a name="line-95"></a><span class='hs-comment'>-- > , ("dashboard", "Desktop")</span>
<a name="line-96"></a><span class='hs-comment'>-- > , ("yi", "w/dev-haskell/yi")</span>
<a name="line-97"></a><span class='hs-comment'>-- > , ("darcs", "w/dev-haskell/darcs")</span>
<a name="line-98"></a><span class='hs-comment'>-- > , ("haskell", "w/dev-haskell")</span>
<a name="line-99"></a><span class='hs-comment'>-- > , ("xmonad", "w/dev-haskell/xmonad")</span>
<a name="line-100"></a><span class='hs-comment'>-- > , ("tools", "w/tools")</span>
<a name="line-101"></a><span class='hs-comment'>-- > , ("movie", "Movies")</span>
<a name="line-102"></a><span class='hs-comment'>-- > , ("talk", "w/talks")</span>
<a name="line-103"></a><span class='hs-comment'>-- > , ("music", "Music")</span>
<a name="line-104"></a><span class='hs-comment'>-- > , ("documents", "w/documents")</span>
<a name="line-105"></a><span class='hs-comment'>-- > , ("pdf", "w/documents")</span>
<a name="line-106"></a><span class='hs-comment'>-- > ]</span>
<a name="line-107"></a><span class='hs-comment'>-- > , defaultTopicAction = const $ spawnShell >*> 3</span>
<a name="line-108"></a><span class='hs-comment'>-- > , defaultTopic = "dashboard"</span>
<a name="line-109"></a><span class='hs-comment'>-- > , topicActions = M.fromList $</span>
<a name="line-110"></a><span class='hs-comment'>-- > [ ("conf", spawnShell >> spawnShellIn "wd/ertai/private")</span>
<a name="line-111"></a><span class='hs-comment'>-- > , ("darcs", spawnShell >*> 3)</span>
<a name="line-112"></a><span class='hs-comment'>-- > , ("yi", spawnShell >*> 3)</span>
<a name="line-113"></a><span class='hs-comment'>-- > , ("haskell", spawnShell >*> 2 >></span>
<a name="line-114"></a><span class='hs-comment'>-- > spawnShellIn "wd/dev-haskell/ghc")</span>
<a name="line-115"></a><span class='hs-comment'>-- > , ("xmonad", spawnShellIn "wd/x11-wm/xmonad" >></span>
<a name="line-116"></a><span class='hs-comment'>-- > spawnShellIn "wd/x11-wm/xmonad/contrib" >></span>
<a name="line-117"></a><span class='hs-comment'>-- > spawnShellIn "wd/x11-wm/xmonad/utils" >></span>
<a name="line-118"></a><span class='hs-comment'>-- > spawnShellIn ".xmonad" >></span>
<a name="line-119"></a><span class='hs-comment'>-- > spawnShellIn ".xmonad")</span>
<a name="line-120"></a><span class='hs-comment'>-- > , ("mail", mailAction)</span>
<a name="line-121"></a><span class='hs-comment'>-- > , ("irc", ssh somewhere)</span>
<a name="line-122"></a><span class='hs-comment'>-- > , ("admin", ssh somewhere >></span>
<a name="line-123"></a><span class='hs-comment'>-- > ssh nowhere)</span>
<a name="line-124"></a><span class='hs-comment'>-- > , ("dashboard", spawnShell)</span>
<a name="line-125"></a><span class='hs-comment'>-- > , ("twitter", spawnShell)</span>
<a name="line-126"></a><span class='hs-comment'>-- > , ("web", spawn browserCmd)</span>
<a name="line-127"></a><span class='hs-comment'>-- > , ("movie", spawnShell)</span>
<a name="line-128"></a><span class='hs-comment'>-- > , ("documents", spawnShell >*> 2 >></span>
<a name="line-129"></a><span class='hs-comment'>-- > spawnShellIn "Documents" >*> 2)</span>
<a name="line-130"></a><span class='hs-comment'>-- > , ("pdf", spawn pdfViewerCmd)</span>
<a name="line-131"></a><span class='hs-comment'>-- > ]</span>
<a name="line-132"></a><span class='hs-comment'>-- > }</span>
<a name="line-133"></a><span class='hs-comment'>-- ></span>
<a name="line-134"></a><span class='hs-comment'>-- > -- extend your keybindings</span>
<a name="line-135"></a><span class='hs-comment'>-- > myKeys conf@XConfig{modMask=modm} =</span>
<a name="line-136"></a><span class='hs-comment'>-- > [ ((modm , xK_n ), spawnShell) -- %! Launch terminal</span>
<a name="line-137"></a><span class='hs-comment'>-- > , ((modm , xK_a ), currentTopicAction myTopicConfig)</span>
<a name="line-138"></a><span class='hs-comment'>-- > , ((modm , xK_g ), promptedGoto)</span>
<a name="line-139"></a><span class='hs-comment'>-- > , ((modm .|. shiftMask, xK_g ), promptedShift)</span>
<a name="line-140"></a><span class='hs-comment'>-- > {- more keys ... -}</span>
<a name="line-141"></a><span class='hs-comment'>-- > ]</span>
<a name="line-142"></a><span class='hs-comment'>-- > ++</span>
<a name="line-143"></a><span class='hs-comment'>-- > [ ((modm, k), switchNthLastFocused myTopicConfig i)</span>
<a name="line-144"></a><span class='hs-comment'>-- > | (i, k) <- zip [1..] workspaceKeys]</span>
<a name="line-145"></a><span class='hs-comment'>-- ></span>
<a name="line-146"></a><span class='hs-comment'>-- > spawnShell :: X ()</span>
<a name="line-147"></a><span class='hs-comment'>-- > spawnShell = currentTopicDir myTopicConfig >>= spawnShellIn</span>
<a name="line-148"></a><span class='hs-comment'>-- ></span>
<a name="line-149"></a><span class='hs-comment'>-- > spawnShellIn :: Dir -> X ()</span>
<a name="line-150"></a><span class='hs-comment'>-- > spawnShellIn dir = spawn $ "urxvt '(cd ''" ++ dir ++ "'' && " ++ myShell ++ " )'"</span>
<a name="line-151"></a><span class='hs-comment'>-- ></span>
<a name="line-152"></a><span class='hs-comment'>-- > goto :: Topic -> X ()</span>
<a name="line-153"></a><span class='hs-comment'>-- > goto = switchTopic myTopicConfig</span>
<a name="line-154"></a><span class='hs-comment'>-- ></span>
<a name="line-155"></a><span class='hs-comment'>-- > promptedGoto :: X ()</span>
<a name="line-156"></a><span class='hs-comment'>-- > promptedGoto = workspacePrompt myXPConfig goto</span>
<a name="line-157"></a><span class='hs-comment'>-- ></span>
<a name="line-158"></a><span class='hs-comment'>-- > promptedShift :: X ()</span>
<a name="line-159"></a><span class='hs-comment'>-- > promptedShift = workspacePrompt myXPConfig $ windows . W.shift</span>
<a name="line-160"></a><span class='hs-comment'>-- ></span>
<a name="line-161"></a><span class='hs-comment'>-- > myConfig = do</span>
<a name="line-162"></a><span class='hs-comment'>-- > checkTopicConfig myTopics myTopicConfig</span>
<a name="line-163"></a><span class='hs-comment'>-- > myLogHook <- makeMyLogHook</span>
<a name="line-164"></a><span class='hs-comment'>-- > return $ defaultConfig</span>
<a name="line-165"></a><span class='hs-comment'>-- > { borderWidth = 1 -- Width of the window border in pixels.</span>
<a name="line-166"></a><span class='hs-comment'>-- > , workspaces = myTopics</span>
<a name="line-167"></a><span class='hs-comment'>-- > , layoutHook = myModifiers myLayout</span>
<a name="line-168"></a><span class='hs-comment'>-- > , manageHook = myManageHook</span>
<a name="line-169"></a><span class='hs-comment'>-- > , logHook = myLogHook</span>
<a name="line-170"></a><span class='hs-comment'>-- > , handleEventHook = myHandleEventHook</span>
<a name="line-171"></a><span class='hs-comment'>-- > , terminal = myTerminal -- The preferred terminal program.</span>
<a name="line-172"></a><span class='hs-comment'>-- > , normalBorderColor = "#3f3c6d"</span>
<a name="line-173"></a><span class='hs-comment'>-- > , focusedBorderColor = "#4f66ff"</span>
<a name="line-174"></a><span class='hs-comment'>-- > , XMonad.modMask = mod1Mask</span>
<a name="line-175"></a><span class='hs-comment'>-- > , keys = myKeys</span>
<a name="line-176"></a><span class='hs-comment'>-- > , mouseBindings = myMouseBindings</span>
<a name="line-177"></a><span class='hs-comment'>-- > }</span>
<a name="line-178"></a><span class='hs-comment'>-- ></span>
<a name="line-179"></a><span class='hs-comment'>-- > main :: IO ()</span>
<a name="line-180"></a><span class='hs-comment'>-- > main = xmonad =<< myConfig</span>
<a name="line-181"></a>
<a name="line-182"></a><a name="%3e*%3e"></a><span class='hs-comment'>-- | An alias for @flip replicateM_@</span>
<a name="line-183"></a><span class='hs-layout'>(</span><span class='hs-varop'>>*></span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-184"></a><span class='hs-layout'>(</span><span class='hs-varop'>>*></span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>replicateM_</span>
<a name="line-185"></a><span class='hs-keyword'>infix</span> <span class='hs-varop'>>*></span>
<a name="line-186"></a>
<a name="line-187"></a><a name="Topic"></a><span class='hs-comment'>-- | 'Topic' is just an alias for 'WorkspaceId'</span>
<a name="line-188"></a><a name="Topic"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Topic</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>WorkspaceId</span>
<a name="line-189"></a>
<a name="line-190"></a><a name="Dir"></a><span class='hs-comment'>-- | 'Dir' is just an alias for 'FilePath' but should points to a directory.</span>
<a name="line-191"></a><a name="Dir"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FilePath</span>
<a name="line-192"></a>
<a name="line-193"></a><a name="TopicConfig"></a><span class='hs-comment'>-- | Here is the topic space configuration area.</span>
<a name="line-194"></a><a name="TopicConfig"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-layout'>{</span> <span class='hs-varid'>topicDirs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-conid'>Topic</span> <span class='hs-conid'>Dir</span>
<a name="line-195"></a> <span class='hs-comment'>-- ^ This mapping associate a directory to each topic.</span>
<a name="line-196"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>topicActions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-conid'>Topic</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-197"></a> <span class='hs-comment'>-- ^ This mapping associate an action to trigger when</span>
<a name="line-198"></a> <span class='hs-comment'>-- switching to a given topic which workspace is empty.</span>
<a name="line-199"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultTopicAction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Topic</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-200"></a> <span class='hs-comment'>-- ^ This is the default topic action.</span>
<a name="line-201"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultTopic</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Topic</span>
<a name="line-202"></a> <span class='hs-comment'>-- ^ This is the default topic.</span>
<a name="line-203"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxTopicHistory</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-204"></a> <span class='hs-comment'>-- ^ This setups the maximum depth of topic history, usually</span>
<a name="line-205"></a> <span class='hs-comment'>-- 10 is a good default since we can bind all of them using</span>
<a name="line-206"></a> <span class='hs-comment'>-- numeric keypad.</span>
<a name="line-207"></a> <span class='hs-layout'>}</span>
<a name="line-208"></a>
<a name="line-209"></a><a name="defaultTopicConfig"></a><span class='hs-definition'>defaultTopicConfig</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</span>
<a name="line-210"></a><span class='hs-definition'>defaultTopicConfig</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-layout'>{</span> <span class='hs-varid'>topicDirs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-211"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>topicActions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-212"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultTopicAction</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-layout'>(</span><span class='hs-varid'>ask</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>spawn</span> <span class='hs-varop'>.</span> <span class='hs-varid'>terminal</span> <span class='hs-varop'>.</span> <span class='hs-varid'>config</span><span class='hs-layout'>)</span>
<a name="line-213"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultTopic</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"1"</span>
<a name="line-214"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>maxTopicHistory</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>10</span>
<a name="line-215"></a> <span class='hs-layout'>}</span>
<a name="line-216"></a>
<a name="line-217"></a><a name="PrevTopics"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>PrevTopics</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PrevTopics</span> <span class='hs-layout'>{</span> <span class='hs-varid'>getPrevTopics</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-layout'>}</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-218"></a><a name="instance%20ExtensionClass%20PrevTopics"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ExtensionClass</span> <span class='hs-conid'>PrevTopics</span> <span class='hs-keyword'>where</span>
<a name="line-219"></a> <span class='hs-varid'>initialValue</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PrevTopics</span> <span class='hs-conid'>[]</span>
<a name="line-220"></a> <span class='hs-varid'>extensionType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PersistentExtension</span>
<a name="line-221"></a>
<a name="line-222"></a><a name="getLastFocusedTopics"></a><span class='hs-comment'>-- | Returns the list of last focused workspaces the empty list otherwise.</span>
<a name="line-223"></a><span class='hs-definition'>getLastFocusedTopics</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-224"></a><span class='hs-definition'>getLastFocusedTopics</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>gets</span> <span class='hs-varid'>getPrevTopics</span>
<a name="line-225"></a>
<a name="line-226"></a><a name="setLastFocusedTopic"></a><span class='hs-comment'>-- | Given a 'TopicConfig', the last focused topic, and a predicate that will</span>
<a name="line-227"></a><span class='hs-comment'>-- select topics that one want to keep, this function will set the property</span>
<a name="line-228"></a><span class='hs-comment'>-- of last focused topics.</span>
<a name="line-229"></a><span class='hs-definition'>setLastFocusedTopic</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Topic</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Topic</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'>X</span> <span class='hs-conid'>()</span>
<a name="line-230"></a><span class='hs-definition'>setLastFocusedTopic</span> <span class='hs-varid'>w</span> <span class='hs-varid'>predicate</span> <span class='hs-keyglyph'>=</span>
<a name="line-231"></a> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PrevTopics</span>
<a name="line-232"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>seqList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>nub</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span><span class='hs-conop'>:</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>filter</span> <span class='hs-varid'>predicate</span>
<a name="line-233"></a> <span class='hs-varop'>.</span> <span class='hs-varid'>getPrevTopics</span>
<a name="line-234"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>seqList</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>xs</span> <span class='hs-varop'>`seq`</span> <span class='hs-varid'>xs</span>
<a name="line-235"></a>
<a name="line-236"></a><a name="reverseLastFocusedTopics"></a><span class='hs-comment'>-- | Reverse the list of "last focused topics"</span>
<a name="line-237"></a><span class='hs-definition'>reverseLastFocusedTopics</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-238"></a><span class='hs-definition'>reverseLastFocusedTopics</span> <span class='hs-keyglyph'>=</span>
<a name="line-239"></a> <span class='hs-conid'>XS</span><span class='hs-varop'>.</span><span class='hs-varid'>modify</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PrevTopics</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>getPrevTopics</span>
<a name="line-240"></a>
<a name="line-241"></a><a name="pprWindowSet"></a><span class='hs-comment'>-- | This function is a variant of 'DL.pprWindowSet' which takes a topic configuration</span>
<a name="line-242"></a><span class='hs-comment'>-- and a pretty-printing record 'PP'. It will show the list of topics sorted historically</span>
<a name="line-243"></a><span class='hs-comment'>-- and highlighting topics with urgent windows.</span>
<a name="line-244"></a><span class='hs-definition'>pprWindowSet</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</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'>String</span>
<a name="line-245"></a><span class='hs-definition'>pprWindowSet</span> <span class='hs-varid'>tg</span> <span class='hs-varid'>pp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-246"></a> <span class='hs-varid'>winset</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-varid'>windowset</span>
<a name="line-247"></a> <span class='hs-varid'>urgents</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readUrgents</span>
<a name="line-248"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>empty_workspaces</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>tag</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNothing</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>stack</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>workspaces</span> <span class='hs-varid'>winset</span>
<a name="line-249"></a> <span class='hs-varid'>maxDepth</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maxTopicHistory</span> <span class='hs-varid'>tg</span>
<a name="line-250"></a> <span class='hs-varid'>setLastFocusedTopic</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>tag</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>workspace</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>current</span> <span class='hs-varop'>$</span> <span class='hs-varid'>winset</span><span class='hs-layout'>)</span>
<a name="line-251"></a> <span class='hs-layout'>(</span><span class='hs-varop'>`notElem`</span> <span class='hs-varid'>empty_workspaces</span><span class='hs-layout'>)</span>
<a name="line-252"></a> <span class='hs-varid'>lastWs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getLastFocusedTopics</span>
<a name="line-253"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>depth</span> <span class='hs-varid'>topic</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>elemIndex</span> <span class='hs-varid'>topic</span> <span class='hs-layout'>(</span><span class='hs-varid'>lastWs</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>topic</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-254"></a> <span class='hs-varid'>add_depth</span> <span class='hs-varid'>proj</span> <span class='hs-varid'>topic</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>proj</span> <span class='hs-varid'>pp</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>topic</span><span class='hs-varop'>++</span><span class='hs-str'>":"</span><span class='hs-layout'>)</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>show</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>depth</span> <span class='hs-varop'>$</span> <span class='hs-varid'>topic</span>
<a name="line-255"></a> <span class='hs-varid'>pp'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pp</span> <span class='hs-layout'>{</span> <span class='hs-varid'>ppHidden</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>add_depth</span> <span class='hs-varid'>ppHidden</span><span class='hs-layout'>,</span> <span class='hs-varid'>ppVisible</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>add_depth</span> <span class='hs-varid'>ppVisible</span> <span class='hs-layout'>}</span>
<a name="line-256"></a> <span class='hs-varid'>sortWindows</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>take</span> <span class='hs-varid'>maxDepth</span> <span class='hs-varop'>.</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span> <span class='hs-varop'>$</span> <span class='hs-varid'>depth</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>tag</span><span class='hs-layout'>)</span>
<a name="line-257"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>DL</span><span class='hs-varop'>.</span><span class='hs-varid'>pprWindowSet</span> <span class='hs-varid'>sortWindows</span> <span class='hs-varid'>urgents</span> <span class='hs-varid'>pp'</span> <span class='hs-varid'>winset</span>
<a name="line-258"></a>
<a name="line-259"></a><a name="topicActionWithPrompt"></a><span class='hs-comment'>-- | Given a prompt configuration and a topic configuration, triggers the action associated with</span>
<a name="line-260"></a><span class='hs-comment'>-- the topic given in prompt.</span>
<a name="line-261"></a><span class='hs-definition'>topicActionWithPrompt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>XPConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-262"></a><span class='hs-definition'>topicActionWithPrompt</span> <span class='hs-varid'>xp</span> <span class='hs-varid'>tg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>workspacePrompt</span> <span class='hs-varid'>xp</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM2</span> <span class='hs-layout'>(</span><span class='hs-varop'>>></span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>switchTopic</span> <span class='hs-varid'>tg</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>topicAction</span> <span class='hs-varid'>tg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-263"></a>
<a name="line-264"></a><a name="topicAction"></a><span class='hs-comment'>-- | Given a configuration and a topic, triggers the action associated with the given topic.</span>
<a name="line-265"></a><span class='hs-definition'>topicAction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Topic</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-266"></a><span class='hs-definition'>topicAction</span> <span class='hs-varid'>tg</span> <span class='hs-varid'>topic</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>defaultTopicAction</span> <span class='hs-varid'>tg</span> <span class='hs-varid'>topic</span><span class='hs-layout'>)</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'>topic</span> <span class='hs-varop'>$</span> <span class='hs-varid'>topicActions</span> <span class='hs-varid'>tg</span>
<a name="line-267"></a>
<a name="line-268"></a><a name="currentTopicAction"></a><span class='hs-comment'>-- | Trigger the action associated with the current topic.</span>
<a name="line-269"></a><span class='hs-definition'>currentTopicAction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</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'>currentTopicAction</span> <span class='hs-varid'>tg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>topicAction</span> <span class='hs-varid'>tg</span> <span class='hs-varop'>=<<</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'>tag</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>workspace</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>current</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-271"></a>
<a name="line-272"></a><a name="switchTopic"></a><span class='hs-comment'>-- | Switch to the given topic.</span>
<a name="line-273"></a><span class='hs-definition'>switchTopic</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Topic</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-274"></a><span class='hs-definition'>switchTopic</span> <span class='hs-varid'>tg</span> <span class='hs-varid'>topic</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-275"></a> <span class='hs-varid'>windows</span> <span class='hs-varop'>$</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>greedyView</span> <span class='hs-varid'>topic</span>
<a name="line-276"></a> <span class='hs-varid'>wins</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'>integrate'</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>stack</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>workspace</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>current</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-277"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>wins</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>topicAction</span> <span class='hs-varid'>tg</span> <span class='hs-varid'>topic</span>
<a name="line-278"></a>
<a name="line-279"></a><a name="switchNthLastFocused"></a><span class='hs-comment'>-- | Switch to the Nth last focused topic or failback to the 'defaultTopic'.</span>
<a name="line-280"></a><span class='hs-definition'>switchNthLastFocused</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-281"></a><span class='hs-definition'>switchNthLastFocused</span> <span class='hs-varid'>tg</span> <span class='hs-varid'>depth</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-282"></a> <span class='hs-varid'>lastWs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getLastFocusedTopics</span>
<a name="line-283"></a> <span class='hs-varid'>switchTopic</span> <span class='hs-varid'>tg</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>lastWs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>repeat</span> <span class='hs-layout'>(</span><span class='hs-varid'>defaultTopic</span> <span class='hs-varid'>tg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>!!</span> <span class='hs-varid'>depth</span>
<a name="line-284"></a>
<a name="line-285"></a><a name="shiftNthLastFocused"></a><span class='hs-comment'>-- | Shift the focused window to the Nth last focused topic, or fallback to doing nothing.</span>
<a name="line-286"></a><span class='hs-definition'>shiftNthLastFocused</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-287"></a><span class='hs-definition'>shiftNthLastFocused</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-288"></a> <span class='hs-varid'>ws</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>listToMaybe</span> <span class='hs-varop'>.</span> <span class='hs-varid'>drop</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varid'>getLastFocusedTopics</span>
<a name="line-289"></a> <span class='hs-varid'>whenJust</span> <span class='hs-varid'>ws</span> <span class='hs-varop'>$</span> <span class='hs-varid'>windows</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>shift</span>
<a name="line-290"></a>
<a name="line-291"></a><a name="currentTopicDir"></a><span class='hs-comment'>-- | Returns the directory associated with current topic returns the empty string otherwise.</span>
<a name="line-292"></a><span class='hs-definition'>currentTopicDir</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>String</span>
<a name="line-293"></a><span class='hs-definition'>currentTopicDir</span> <span class='hs-varid'>tg</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-294"></a> <span class='hs-varid'>topic</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>tag</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>workspace</span> <span class='hs-varop'>.</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>current</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-295"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-str'>""</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>topic</span> <span class='hs-varop'>$</span> <span class='hs-varid'>topicDirs</span> <span class='hs-varid'>tg</span>
<a name="line-296"></a>
<a name="line-297"></a><a name="checkTopicConfig"></a><span class='hs-comment'>-- | Check the given topic configuration for duplicates topics or undefined topics.</span>
<a name="line-298"></a><span class='hs-definition'>checkTopicConfig</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Topic</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TopicConfig</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-299"></a><span class='hs-definition'>checkTopicConfig</span> <span class='hs-varid'>tags</span> <span class='hs-varid'>tg</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-300"></a> <span class='hs-comment'>-- tags <- gets $ map W.tag . workspaces . windowset</span>
<a name="line-301"></a>
<a name="line-302"></a> <span class='hs-keyword'>let</span>
<a name="line-303"></a> <span class='hs-varid'>seenTopics</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nub</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sort</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>keys</span> <span class='hs-layout'>(</span><span class='hs-varid'>topicDirs</span> <span class='hs-varid'>tg</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>keys</span> <span class='hs-layout'>(</span><span class='hs-varid'>topicActions</span> <span class='hs-varid'>tg</span><span class='hs-layout'>)</span>
<a name="line-304"></a> <span class='hs-varid'>dups</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tags</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>nub</span> <span class='hs-varid'>tags</span>
<a name="line-305"></a> <span class='hs-varid'>diffTopic</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seenTopics</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>sort</span> <span class='hs-varid'>tags</span>
<a name="line-306"></a> <span class='hs-varid'>check</span> <span class='hs-varid'>lst</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unless</span> <span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>lst</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>xmessage</span> <span class='hs-varop'>$</span> <span class='hs-varid'>msg</span> <span class='hs-varop'>++</span> <span class='hs-str'>" (tags): "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>lst</span>
<a name="line-307"></a>
<a name="line-308"></a> <span class='hs-varid'>check</span> <span class='hs-varid'>diffTopic</span> <span class='hs-str'>"Seen but missing topics/workspaces"</span>
<a name="line-309"></a> <span class='hs-varid'>check</span> <span class='hs-varid'>dups</span> <span class='hs-str'>"Duplicate topics/workspaces"</span>
<a name="line-310"></a>
<a name="line-311"></a><a name="xmessage"></a><span class='hs-comment'>-- | Display the given message using the @xmessage@ program.</span>
<a name="line-312"></a><span class='hs-definition'>xmessage</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-conid'>()</span>
<a name="line-313"></a><span class='hs-definition'>xmessage</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-314"></a> <span class='hs-varid'>h</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>spawnPipe</span> <span class='hs-str'>"xmessage -file -"</span>
<a name="line-315"></a> <span class='hs-varid'>hPutStr</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-316"></a> <span class='hs-varid'>hClose</span> <span class='hs-varid'>h</span>
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