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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.WindowNavigation</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) 2007 David Roundy <droundy@darcs.net>,</span>
<a name="line-5"></a><span class='hs-comment'>-- Devin Mullins <me@twifkak.com></span>
<a name="line-6"></a><span class='hs-comment'>-- Maintainer : Devin Mullins <me@twifkak.com></span>
<a name="line-7"></a><span class='hs-comment'>-- License : BSD3-style (see LICENSE)</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'>-- This is a rewrite of "XMonad.Layout.WindowNavigation". WindowNavigation</span>
<a name="line-12"></a><span class='hs-comment'>-- lets you assign keys to move up\/down\/left\/right, based on actual cartesian</span>
<a name="line-13"></a><span class='hs-comment'>-- window coordinates, rather than just going j\/k on the stack.</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-- This module is experimental. You'll have better luck with the original.</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-- This module differs from the other in a few ways:</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>-- (1) You can go up\/down\/left\/right across multiple screens.</span>
<a name="line-20"></a><span class='hs-comment'>--</span>
<a name="line-21"></a><span class='hs-comment'>-- (2) It doesn't provide little border colors for your neighboring windows.</span>
<a name="line-22"></a><span class='hs-comment'>--</span>
<a name="line-23"></a><span class='hs-comment'>-- (3) It doesn't provide the \'Move\' action, which seems to be related to</span>
<a name="line-24"></a><span class='hs-comment'>-- the XMonad.Layout.Combo extension.</span>
<a name="line-25"></a><span class='hs-comment'>--</span>
<a name="line-26"></a><span class='hs-comment'>-- (4) It tries to be slightly smarter about tracking your current position.</span>
<a name="line-27"></a><span class='hs-comment'>--</span>
<a name="line-28"></a><span class='hs-comment'>-- (5) Configuration is different.</span>
<a name="line-29"></a><span class='hs-comment'>--</span>
<a name="line-30"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-31"></a>
<a name="line-32"></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'>WindowNavigation</span> <span class='hs-layout'>(</span>
<a name="line-33"></a> <span class='hs-comment'>-- * Usage</span>
<a name="line-34"></a> <span class='hs-comment'>-- $usage</span>
<a name="line-35"></a> <span class='hs-varid'>withWindowNavigation</span><span class='hs-layout'>,</span>
<a name="line-36"></a> <span class='hs-varid'>withWindowNavigationKeys</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-conid'>WNAction</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-38"></a> <span class='hs-varid'>go</span><span class='hs-layout'>,</span> <span class='hs-varid'>swap</span><span class='hs-layout'>,</span>
<a name="line-39"></a> <span class='hs-conid'>Direction2D</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-40"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <span class='hs-layout'>(</span><span class='hs-conid'>Direction2D</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>XMonad</span><span class='hs-varop'>.</span><span class='hs-conid'>StackSet</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>W</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span> <span class='hs-layout'>(</span><span class='hs-varid'>second</span><span class='hs-layout'>)</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>IORef</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>sortBy</span><span class='hs-layout'>)</span>
<a name="line-50"></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-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-51"></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-52"></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'>catMaybes</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromMaybe</span><span class='hs-layout'>,</span> <span class='hs-varid'>listToMaybe</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Ord</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span><span class='hs-layout'>)</span>
<a name="line-54"></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'>Set</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>S</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>X11</span><span class='hs-varop'>.</span><span class='hs-conid'>Xlib</span>
<a name="line-56"></a>
<a name="line-57"></a><span class='hs-comment'>-- $usage</span>
<a name="line-58"></a><span class='hs-comment'>--</span>
<a name="line-59"></a><span class='hs-comment'>-- To use it, you're going to apply the 'withWindowNavigation' function.</span>
<a name="line-60"></a><span class='hs-comment'>-- 'withWindowNavigation' performs some IO operations, so the syntax you'll use</span>
<a name="line-61"></a><span class='hs-comment'>-- is the same as the spawnPipe example in "XMonad.Hooks.DynamicLog".</span>
<a name="line-62"></a><span class='hs-comment'>-- In particular:</span>
<a name="line-63"></a><span class='hs-comment'>--</span>
<a name="line-64"></a><span class='hs-comment'>-- > main = do</span>
<a name="line-65"></a><span class='hs-comment'>-- > config <- withWindowNavigation (xK_w, xK_a, xK_s, xK_d)</span>
<a name="line-66"></a><span class='hs-comment'>-- > $ defaultConfig { ... }</span>
<a name="line-67"></a><span class='hs-comment'>-- > xmonad config</span>
<a name="line-68"></a><span class='hs-comment'>--</span>
<a name="line-69"></a><span class='hs-comment'>-- Here, we pass in the keys for navigation in counter-clockwise order from up.</span>
<a name="line-70"></a><span class='hs-comment'>-- It creates keybindings for @modMask@ to move to window, and @modMask .|. shiftMask@</span>
<a name="line-71"></a><span class='hs-comment'>-- to swap windows.</span>
<a name="line-72"></a><span class='hs-comment'>--</span>
<a name="line-73"></a><span class='hs-comment'>-- If you want more flexibility over your keybindings, you can use</span>
<a name="line-74"></a><span class='hs-comment'>-- 'withWindowNavigationKeys', which takes a list of @keys@-esque entries rather</span>
<a name="line-75"></a><span class='hs-comment'>-- than a tuple of the four directional keys. See the source code of</span>
<a name="line-76"></a><span class='hs-comment'>-- 'withWindowNavigation' for an example.</span>
<a name="line-77"></a>
<a name="line-78"></a><span class='hs-comment'>-- TODO:</span>
<a name="line-79"></a><span class='hs-comment'>-- - monad for WNState?</span>
<a name="line-80"></a><span class='hs-comment'>-- - cleanup (including inr)</span>
<a name="line-81"></a><span class='hs-comment'>-- - more documentation</span>
<a name="line-82"></a><span class='hs-comment'>-- - tests? (esp. for edge cases in currentPosition)</span>
<a name="line-83"></a><span class='hs-comment'>-- - screen 1, 1+2/w 3, M-d, M-w, M-2 (1+2/w 2), M-e, M-a - goes to w 3, should be w 2</span>
<a name="line-84"></a><span class='hs-comment'>-- - solve the 2+3, middle right to bottom left problem</span>
<a name="line-85"></a><span class='hs-comment'>-- - command to iteratively swapUp/swapDown instead of directly swapping with target</span>
<a name="line-86"></a><span class='hs-comment'>-- - manageHook to draw window decos?</span>
<a name="line-87"></a>
<a name="line-88"></a><a name="withWindowNavigation"></a><span class='hs-definition'>withWindowNavigation</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>KeySym</span><span class='hs-layout'>,</span> <span class='hs-conid'>KeySym</span><span class='hs-layout'>,</span> <span class='hs-conid'>KeySym</span><span class='hs-layout'>,</span> <span class='hs-conid'>KeySym</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>XConfig</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>XConfig</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-89"></a><span class='hs-definition'>withWindowNavigation</span> <span class='hs-layout'>(</span><span class='hs-varid'>u</span><span class='hs-layout'>,</span><span class='hs-varid'>l</span><span class='hs-layout'>,</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varid'>conf</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>XConfig</span><span class='hs-layout'>{</span><span class='hs-varid'>modMask</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>modm</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span>
<a name="line-90"></a> <span class='hs-varid'>withWindowNavigationKeys</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-layout'>,</span> <span class='hs-varid'>u</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNGo</span> <span class='hs-conid'>U</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-91"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNGo</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-92"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-layout'>,</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNGo</span> <span class='hs-conid'>D</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-93"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-layout'>,</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNGo</span> <span class='hs-conid'>R</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-94"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>shiftMask</span><span class='hs-layout'>,</span> <span class='hs-varid'>u</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNSwap</span> <span class='hs-conid'>U</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-95"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>shiftMask</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNSwap</span> <span class='hs-conid'>L</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-96"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>shiftMask</span><span class='hs-layout'>,</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNSwap</span> <span class='hs-conid'>D</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-97"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>modm</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>shiftMask</span><span class='hs-layout'>,</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>WNSwap</span> <span class='hs-conid'>R</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-98"></a> <span class='hs-varid'>conf</span>
<a name="line-99"></a>
<a name="line-100"></a><a name="withWindowNavigationKeys"></a><span class='hs-definition'>withWindowNavigationKeys</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</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'>WNAction</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>XConfig</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>XConfig</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-101"></a><span class='hs-definition'>withWindowNavigationKeys</span> <span class='hs-varid'>wnKeys</span> <span class='hs-varid'>conf</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-102"></a> <span class='hs-varid'>posRef</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>newIORef</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-103"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>conf</span> <span class='hs-layout'>{</span> <span class='hs-varid'>keys</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>cnf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>second</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromWNAction</span> <span class='hs-varid'>posRef</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>wnKeys</span><span class='hs-layout'>)</span>
<a name="line-104"></a> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span><span class='hs-varop'>`</span> <span class='hs-varid'>keys</span> <span class='hs-varid'>conf</span> <span class='hs-varid'>cnf</span><span class='hs-layout'>,</span>
<a name="line-105"></a> <span class='hs-varid'>logHook</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>logHook</span> <span class='hs-varid'>conf</span> <span class='hs-varop'>>></span> <span class='hs-varid'>trackMovement</span> <span class='hs-varid'>posRef</span> <span class='hs-layout'>}</span>
<a name="line-106"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fromWNAction</span> <span class='hs-varid'>posRef</span> <span class='hs-layout'>(</span><span class='hs-conid'>WNGo</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>dir</span>
<a name="line-107"></a> <span class='hs-varid'>fromWNAction</span> <span class='hs-varid'>posRef</span> <span class='hs-layout'>(</span><span class='hs-conid'>WNSwap</span> <span class='hs-varid'>dir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>swap</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>dir</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="WNAction"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>WNAction</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>WNGo</span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>WNSwap</span> <span class='hs-conid'>Direction2D</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="WNState"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span> <span class='hs-conid'>WorkspaceId</span> <span class='hs-conid'>Point</span>
<a name="line-112"></a>
<a name="line-113"></a><a name="go"></a><span class='hs-comment'>-- go:</span>
<a name="line-114"></a><span class='hs-comment'>-- 1. get current position, verifying it matches the current window</span>
<a name="line-115"></a><span class='hs-comment'>-- 2. get target windowrect</span>
<a name="line-116"></a><span class='hs-comment'>-- 3. focus window</span>
<a name="line-117"></a><span class='hs-comment'>-- 4. set new position</span>
<a name="line-118"></a><span class='hs-definition'>go</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-119"></a><span class='hs-definition'>go</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withTargetWindow</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>focusWindow</span>
<a name="line-120"></a>
<a name="line-121"></a><a name="swap"></a><span class='hs-definition'>swap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-122"></a><span class='hs-definition'>swap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withTargetWindow</span> <span class='hs-varid'>swapWithFocused</span>
<a name="line-123"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>swapWithFocused</span> <span class='hs-varid'>targetWin</span> <span class='hs-varid'>winSet</span> <span class='hs-keyglyph'>=</span>
<a name="line-124"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>peek</span> <span class='hs-varid'>winSet</span> <span class='hs-keyword'>of</span>
<a name="line-125"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>currentWin</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>focusWindow</span> <span class='hs-varid'>currentWin</span> <span class='hs-varop'>$</span>
<a name="line-126"></a> <span class='hs-varid'>mapWindows</span> <span class='hs-layout'>(</span><span class='hs-varid'>swapWin</span> <span class='hs-varid'>currentWin</span> <span class='hs-varid'>targetWin</span><span class='hs-layout'>)</span> <span class='hs-varid'>winSet</span>
<a name="line-127"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>winSet</span>
<a name="line-128"></a> <span class='hs-varid'>mapWindows</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ss</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>mapWorkspace</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapWindows'</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varid'>ss</span>
<a name="line-129"></a> <span class='hs-varid'>mapWindows'</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ws</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-conid'>Workspace</span> <span class='hs-layout'>{</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>stack</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ws</span> <span class='hs-layout'>{</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>stack</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapWindows''</span> <span class='hs-varid'>f</span> <span class='hs-varop'><$></span> <span class='hs-varid'>s</span> <span class='hs-layout'>}</span>
<a name="line-130"></a> <span class='hs-varid'>mapWindows''</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-conid'>Stack</span> <span class='hs-varid'>focused</span> <span class='hs-varid'>up</span> <span class='hs-varid'>down</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-conid'>Stack</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>focused</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>f</span> <span class='hs-varid'>up</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>f</span> <span class='hs-varid'>down</span><span class='hs-layout'>)</span>
<a name="line-131"></a> <span class='hs-varid'>swapWin</span> <span class='hs-varid'>win1</span> <span class='hs-varid'>win2</span> <span class='hs-varid'>win</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>win</span> <span class='hs-varop'>==</span> <span class='hs-varid'>win1</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>win2</span> <span class='hs-keyword'>else</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>win</span> <span class='hs-varop'>==</span> <span class='hs-varid'>win2</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>win1</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>win</span>
<a name="line-132"></a>
<a name="line-133"></a><a name="withTargetWindow"></a><span class='hs-definition'>withTargetWindow</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Window</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'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-134"></a><span class='hs-definition'>withTargetWindow</span> <span class='hs-varid'>adj</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromCurrentPoint</span> <span class='hs-varid'>posRef</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>win</span> <span class='hs-varid'>pos</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-135"></a> <span class='hs-varid'>targets</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-varid'>win</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varop'><$></span> <span class='hs-varid'>navigableTargets</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>dir</span>
<a name="line-136"></a> <span class='hs-varid'>whenJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>listToMaybe</span> <span class='hs-varid'>targets</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>targetWin</span><span class='hs-layout'>,</span> <span class='hs-varid'>targetRect</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-137"></a> <span class='hs-varid'>windows</span> <span class='hs-layout'>(</span><span class='hs-varid'>adj</span> <span class='hs-varid'>targetWin</span><span class='hs-layout'>)</span>
<a name="line-138"></a> <span class='hs-varid'>setPosition</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>targetRect</span>
<a name="line-139"></a>
<a name="line-140"></a><a name="trackMovement"></a><span class='hs-definition'>trackMovement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-141"></a><span class='hs-definition'>trackMovement</span> <span class='hs-varid'>posRef</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromCurrentPoint</span> <span class='hs-varid'>posRef</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>win</span> <span class='hs-varid'>pos</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-142"></a> <span class='hs-varid'>windowRect</span> <span class='hs-varid'>win</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>whenJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>setPosition</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>pos</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span>
<a name="line-143"></a>
<a name="line-144"></a><a name="fromCurrentPoint"></a><span class='hs-definition'>fromCurrentPoint</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Window</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Point</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-145"></a><span class='hs-definition'>fromCurrentPoint</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withFocused</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>win</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-146"></a> <span class='hs-varid'>currentPosition</span> <span class='hs-varid'>posRef</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>win</span>
<a name="line-147"></a>
<a name="line-148"></a><a name="currentPosition"></a><span class='hs-comment'>-- Gets the current position from the IORef passed in, or if nothing (say, from</span>
<a name="line-149"></a><span class='hs-comment'>-- a restart), derives the current position from the current window. Also,</span>
<a name="line-150"></a><span class='hs-comment'>-- verifies that the position is congruent with the current window (say, if you</span>
<a name="line-151"></a><span class='hs-comment'>-- used mod-j/k or mouse or something).</span>
<a name="line-152"></a><span class='hs-definition'>currentPosition</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>Point</span>
<a name="line-153"></a><span class='hs-definition'>currentPosition</span> <span class='hs-varid'>posRef</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-154"></a> <span class='hs-varid'>root</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>asks</span> <span class='hs-varid'>theRoot</span>
<a name="line-155"></a> <span class='hs-varid'>currentWindow</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'>peek</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-156"></a> <span class='hs-varid'>currentRect</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varid'>snd</span> <span class='hs-varop'><$></span> <span class='hs-varid'>windowRect</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMaybe</span> <span class='hs-varid'>root</span> <span class='hs-varid'>currentWindow</span><span class='hs-layout'>)</span>
<a name="line-157"></a>
<a name="line-158"></a> <span class='hs-varid'>wsid</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>currentTag</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-159"></a> <span class='hs-varid'>mp</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-varid'>wsid</span> <span class='hs-varop'><$></span> <span class='hs-varid'>io</span> <span class='hs-layout'>(</span><span class='hs-varid'>readIORef</span> <span class='hs-varid'>posRef</span><span class='hs-layout'>)</span>
<a name="line-160"></a>
<a name="line-161"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>middleOf</span> <span class='hs-varid'>currentRect</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varop'>`inside`</span> <span class='hs-varid'>currentRect</span><span class='hs-layout'>)</span> <span class='hs-varid'>mp</span>
<a name="line-162"></a>
<a name="line-163"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>middleOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Point</span> <span class='hs-layout'>(</span><span class='hs-varid'>midPoint</span> <span class='hs-varid'>x</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>midPoint</span> <span class='hs-varid'>y</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span>
<a name="line-164"></a>
<a name="line-165"></a><a name="setPosition"></a><span class='hs-definition'>setPosition</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IORef</span> <span class='hs-conid'>WNState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Point</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-conid'>()</span>
<a name="line-166"></a><span class='hs-definition'>setPosition</span> <span class='hs-varid'>posRef</span> <span class='hs-varid'>oldPos</span> <span class='hs-varid'>newRect</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-167"></a> <span class='hs-varid'>wsid</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gets</span> <span class='hs-layout'>(</span><span class='hs-conid'>W</span><span class='hs-varop'>.</span><span class='hs-varid'>currentTag</span> <span class='hs-varop'>.</span> <span class='hs-varid'>windowset</span><span class='hs-layout'>)</span>
<a name="line-168"></a> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>modifyIORef</span> <span class='hs-varid'>posRef</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>wsid</span> <span class='hs-layout'>(</span><span class='hs-varid'>oldPos</span> <span class='hs-varop'>`inside`</span> <span class='hs-varid'>newRect</span><span class='hs-layout'>)</span>
<a name="line-169"></a>
<a name="line-170"></a><a name="inside"></a><span class='hs-definition'>inside</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Point</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Point</span>
<a name="line-171"></a><span class='hs-conid'>Point</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varop'>`inside`</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>rw</span> <span class='hs-varid'>rh</span> <span class='hs-keyglyph'>=</span>
<a name="line-172"></a> <span class='hs-conid'>Point</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>`within`</span> <span class='hs-layout'>(</span><span class='hs-varid'>rx</span><span class='hs-layout'>,</span> <span class='hs-varid'>rw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varop'>`within`</span> <span class='hs-layout'>(</span><span class='hs-varid'>ry</span><span class='hs-layout'>,</span> <span class='hs-varid'>rh</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-173"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>pos</span> <span class='hs-varop'>`within`</span> <span class='hs-layout'>(</span><span class='hs-varid'>lower</span><span class='hs-layout'>,</span> <span class='hs-varid'>dim</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>pos</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>lower</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>pos</span> <span class='hs-varop'><</span> <span class='hs-varid'>lower</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>dim</span>
<a name="line-174"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>pos</span>
<a name="line-175"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>midPoint</span> <span class='hs-varid'>lower</span> <span class='hs-varid'>dim</span>
<a name="line-176"></a>
<a name="line-177"></a><a name="midPoint"></a><span class='hs-definition'>midPoint</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Position</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dimension</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Position</span>
<a name="line-178"></a><span class='hs-definition'>midPoint</span> <span class='hs-varid'>pos</span> <span class='hs-varid'>dim</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pos</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>dim</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>2</span>
<a name="line-179"></a>
<a name="line-180"></a><a name="navigableTargets"></a><span class='hs-definition'>navigableTargets</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Point</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-181"></a><span class='hs-definition'>navigableTargets</span> <span class='hs-varid'>point</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>navigable</span> <span class='hs-varid'>dir</span> <span class='hs-varid'>point</span> <span class='hs-varop'><$></span> <span class='hs-varid'>windowRects</span>
<a name="line-182"></a>
<a name="line-183"></a><a name="navigable"></a><span class='hs-comment'>-- Filters and sorts the windows in terms of what is closest from the Point in</span>
<a name="line-184"></a><span class='hs-comment'>-- the Direction2D.</span>
<a name="line-185"></a><span class='hs-definition'>navigable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Point</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-186"></a><span class='hs-definition'>navigable</span> <span class='hs-varid'>d</span> <span class='hs-varid'>pt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortby</span> <span class='hs-varid'>d</span> <span class='hs-varop'>.</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>inr</span> <span class='hs-varid'>d</span> <span class='hs-varid'>pt</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span>
<a name="line-187"></a>
<a name="line-188"></a><a name="windowRects"></a><span class='hs-comment'>-- Produces a list of normal-state windows, on any screen. Rectangles are</span>
<a name="line-189"></a><span class='hs-comment'>-- adjusted based on screen position relative to the current screen, because I'm</span>
<a name="line-190"></a><span class='hs-comment'>-- bad like that.</span>
<a name="line-191"></a><span class='hs-definition'>windowRects</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>X</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-192"></a><span class='hs-definition'>windowRects</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>catMaybes</span> <span class='hs-varop'>.</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>windowRect</span> <span class='hs-varop'>.</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>gets</span> <span class='hs-varid'>mapped</span>
<a name="line-193"></a>
<a name="line-194"></a><a name="windowRect"></a><span class='hs-definition'>windowRect</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Window</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>X</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Window</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-195"></a><span class='hs-definition'>windowRect</span> <span class='hs-varid'>win</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withDisplay</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>dpy</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-196"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-varid'>w</span><span class='hs-layout'>,</span> <span class='hs-varid'>h</span><span class='hs-layout'>,</span> <span class='hs-varid'>bw</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>io</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getGeometry</span> <span class='hs-varid'>dpy</span> <span class='hs-varid'>win</span>
<a name="line-197"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>win</span><span class='hs-layout'>,</span> <span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>+</span> <span class='hs-num'>2</span> <span class='hs-varop'>*</span> <span class='hs-varid'>bw</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>h</span> <span class='hs-varop'>+</span> <span class='hs-num'>2</span> <span class='hs-varop'>*</span> <span class='hs-varid'>bw</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-198"></a> <span class='hs-varop'>`catchX`</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-199"></a>
<a name="line-200"></a><span class='hs-comment'>-- Modified from droundy's implementation of WindowNavigation:</span>
<a name="line-201"></a>
<a name="line-202"></a><a name="inr"></a><span class='hs-definition'>inr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Point</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-203"></a><span class='hs-definition'>inr</span> <span class='hs-conid'>D</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>px</span> <span class='hs-varid'>py</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>px</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>px</span> <span class='hs-varop'><</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&&</span>
<a name="line-204"></a> <span class='hs-varid'>py</span> <span class='hs-varop'><</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>h</span>
<a name="line-205"></a><span class='hs-definition'>inr</span> <span class='hs-conid'>U</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>px</span> <span class='hs-varid'>py</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>w</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>px</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>px</span> <span class='hs-varop'><</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&&</span>
<a name="line-206"></a> <span class='hs-varid'>py</span> <span class='hs-varop'>></span> <span class='hs-varid'>ry</span>
<a name="line-207"></a><span class='hs-definition'>inr</span> <span class='hs-conid'>R</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>px</span> <span class='hs-varid'>py</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>px</span> <span class='hs-varop'><</span> <span class='hs-varid'>rx</span> <span class='hs-varop'>&&</span>
<a name="line-208"></a> <span class='hs-varid'>py</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>py</span> <span class='hs-varop'><</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>h</span>
<a name="line-209"></a><span class='hs-definition'>inr</span> <span class='hs-conid'>L</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-varid'>px</span> <span class='hs-varid'>py</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>rx</span> <span class='hs-varid'>ry</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>px</span> <span class='hs-varop'>></span> <span class='hs-varid'>rx</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&&</span>
<a name="line-210"></a> <span class='hs-varid'>py</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>py</span> <span class='hs-varop'><</span> <span class='hs-varid'>ry</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>h</span>
<a name="line-211"></a>
<a name="line-212"></a><a name="sortby"></a><span class='hs-definition'>sortby</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Direction2D</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-conid'>Rectangle</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-213"></a><span class='hs-definition'>sortby</span> <span class='hs-conid'>D</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-varop'>$</span> <span class='hs-varid'>comparing</span> <span class='hs-layout'>(</span><span class='hs-varid'>rect_y</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span>
<a name="line-214"></a><span class='hs-definition'>sortby</span> <span class='hs-conid'>R</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sortBy</span> <span class='hs-varop'>$</span> <span class='hs-varid'>comparing</span> <span class='hs-layout'>(</span><span class='hs-varid'>rect_x</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span>
<a name="line-215"></a><span class='hs-definition'>sortby</span> <span class='hs-conid'>U</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>sortby</span> <span class='hs-conid'>D</span>
<a name="line-216"></a><span class='hs-definition'>sortby</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>sortby</span> <span class='hs-conid'>R</span>
</pre></body>
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