1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
{-# OPTIONS_GHC -fglasgow-exts #-} -- For deriving Data/Typeable
{-# LANGUAGE FlexibleInstances, GeneralizedNewtypeDeriving, MultiParamTypeClasses, TypeSynonymInstances #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.WindowNavigation
-- Copyright : (c) 2007 David Roundy <droundy@darcs.net>
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : David Roundy <droundy@darcs.net>
-- Stability : unstable
-- Portability : unportable
--
-- WindowNavigation is an extension to allow easy navigation of a workspace.
--
-----------------------------------------------------------------------------
module XMonad.Layout.WindowNavigation (
-- * Usage
-- $usage
windowNavigation, configurableNavigation,
Navigate(..), Direction(..),
MoveWindowToWindow(..),
navigateColor, navigateBrightness,
noNavigateBorders, defaultWNConfig
) where
import Data.List ( nub, sortBy, (\\) )
import XMonad hiding (Point)
import qualified XMonad.StackSet as W
import XMonad.Layout.LayoutModifier
import XMonad.Util.Invisible
import XMonad.Util.XUtils
-- $usage
-- You can use this module with the following in your @~\/.xmonad\/xmonad.hs@:
--
-- > import XMonad.Layout.WindowNavigation
--
-- Then edit your @layoutHook@ by adding the WindowNavigation layout modifier
-- to some layout:
--
-- > myLayouts = windowNavigation (Tall 1 (3/100) (1/2)) ||| Full ||| etc..
-- > main = xmonad defaultConfig { layoutHook = myLayouts }
--
-- For more detailed instructions on editing the layoutHook see:
--
-- "XMonad.Doc.Extending#Editing_the_layout_hook"
--
-- In keybindings:
--
-- > , ((modMask x, xK_Right), sendMessage $ Go R)
-- > , ((modMask x, xK_Left ), sendMessage $ Go L)
-- > , ((modMask x, xK_Up ), sendMessage $ Go U)
-- > , ((modMask x, xK_Down ), sendMessage $ Go D)
-- > , ((modMask x .|. controlMask, xK_Right), sendMessage $ Swap R)
-- > , ((modMask x .|. controlMask, xK_Left ), sendMessage $ Swap L)
-- > , ((modMask x .|. controlMask, xK_Up ), sendMessage $ Swap U)
-- > , ((modMask x .|. controlMask, xK_Down ), sendMessage $ Swap D)
--
-- For detailed instruction on editing the key binding see:
--
-- "XMonad.Doc.Extending#Editing_key_bindings".
data MoveWindowToWindow a = MoveWindowToWindow a a deriving ( Read, Show, Typeable )
instance Typeable a => Message (MoveWindowToWindow a)
data Navigate = Go Direction | Swap Direction | Move Direction deriving ( Read, Show, Typeable )
data Direction = U | D | R | L deriving ( Read, Show, Eq, Ord, Enum, Bounded )
instance Message Navigate
data WNConfig =
WNC { brightness :: Maybe Double -- Indicates a fraction of the focus color.
, upColor :: String
, downColor :: String
, leftColor :: String
, rightColor :: String
} deriving (Show, Read)
noNavigateBorders :: WNConfig
noNavigateBorders =
defaultWNConfig {brightness = Just 0}
navigateColor :: String -> WNConfig
navigateColor c =
WNC Nothing c c c c
navigateBrightness :: Double -> WNConfig
navigateBrightness f | f > 1 = navigateBrightness 1
| f < 0 = navigateBrightness 0
navigateBrightness f = defaultWNConfig { brightness = Just f }
defaultWNConfig :: WNConfig
defaultWNConfig = WNC (Just 0.5) "#0000FF" "#00FFFF" "#FF0000" "#FF00FF"
data NavigationState a = NS Point [(a,Rectangle)]
data WindowNavigation a = WindowNavigation WNConfig (Invisible Maybe (NavigationState a)) deriving ( Read, Show )
windowNavigation :: LayoutClass l a => l a -> ModifiedLayout WindowNavigation l a
windowNavigation = ModifiedLayout (WindowNavigation defaultWNConfig (I Nothing))
configurableNavigation :: LayoutClass l a => WNConfig -> l a -> ModifiedLayout WindowNavigation l a
configurableNavigation conf = ModifiedLayout (WindowNavigation conf (I Nothing))
instance LayoutModifier WindowNavigation Window where
redoLayout (WindowNavigation conf (I state)) rscr s origwrs =
do XConf { normalBorder = nbc, focusedBorder = fbc, display = dpy } <- ask
[uc,dc,lc,rc] <-
case brightness conf of
Just frac -> do myc <- averagePixels fbc nbc frac
return [myc,myc,myc,myc]
Nothing -> mapM (stringToPixel dpy) [upColor conf, downColor conf,
leftColor conf, rightColor conf]
let dirc U = uc
dirc D = dc
dirc L = lc
dirc R = rc
let w = W.focus s
r = case filter ((==w).fst) origwrs of ((_,x):_) -> x
[] -> rscr
pt = case state of Just (NS ptold _) | ptold `inrect` r -> ptold
_ -> center r
existing_wins = W.integrate s
wrs = filter ((`elem` existing_wins) . fst) $ filter ((/=r) . snd) $
filter ((/=w) . fst) origwrs
wnavigable = nub $ concatMap
(\d -> truncHead $ sortby d $ filter (inr d pt . snd) wrs) [U,D,R,L]
wnavigablec = nub $ concatMap
(\d -> map (\(win,_) -> (win,dirc d)) $
truncHead $ sortby d $ filter (inr d pt . snd) wrs) [U,D,R,L]
wothers = case state of Just (NS _ wo) -> map fst wo
_ -> []
mapM_ (sc nbc) (wothers \\ map fst wnavigable)
mapM_ (\(win,c) -> sc c win) wnavigablec
return (origwrs, Just $ WindowNavigation conf $ I $ Just $ NS pt wnavigable)
handleMessOrMaybeModifyIt (WindowNavigation conf (I (Just (NS pt wrs)))) m
| Just (Go d) <- fromMessage m =
case sortby d $ filter (inr d pt . snd) wrs of
[] -> return Nothing
((w,r):_) -> do modify focusWindowHere
return $ Just $ Left $ WindowNavigation conf $ I $ Just $
NS (centerd d pt r) wrs
where focusWindowHere :: XState -> XState
focusWindowHere s
| Just w == W.peek (windowset s) = s
| has w $ W.stack $ W.workspace $ W.current $ windowset s =
s { windowset = until ((Just w ==) . W.peek)
W.focusUp $ windowset s }
| otherwise = s
has _ Nothing = False
has x (Just (W.Stack t l rr)) = x `elem` (t : l ++ rr)
| Just (Swap d) <- fromMessage m =
case sortby d $ filter (inr d pt . snd) wrs of
[] -> return Nothing
((w,_):_) -> do let swap st = unint (W.focus st) $ map (swapw (W.focus st)) $ W.integrate st
swapw y x | x == w = y
| x == y = w
| otherwise = x
unint f xs = case span (/= f) xs of
(u,_:dn) -> W.Stack { W.focus = f
, W.up = reverse u
, W.down = dn }
_ -> W.Stack { W.focus = f
, W.down = xs
, W.up = [] }
windows $ W.modify' swap
return Nothing
| Just (Move d) <- fromMessage m =
case sortby d $ filter (inr d pt . snd) wrs of
[] -> return Nothing
((w,_):_) -> do mst <- gets (W.stack . W.workspace . W.current . windowset)
return $ do st <- mst
Just $ Right $ SomeMessage $ MoveWindowToWindow (W.focus st) w
| Just Hide <- fromMessage m =
do XConf { normalBorder = nbc } <- ask
mapM_ (sc nbc . fst) wrs
return $ Just $ Left $ WindowNavigation conf $ I $ Just $ NS pt []
| Just ReleaseResources <- fromMessage m =
handleMessOrMaybeModifyIt (WindowNavigation conf (I $ Just (NS pt wrs))) (SomeMessage Hide)
handleMessOrMaybeModifyIt _ _ = return Nothing
truncHead :: [a] -> [a]
truncHead (x:_) = [x]
truncHead [] = []
sc :: Pixel -> Window -> X ()
sc c win = withDisplay $ \dpy -> io $ setWindowBorder dpy win c
center :: Rectangle -> Point
center (Rectangle x y w h) = P (fromIntegral x + fromIntegral w/2) (fromIntegral y + fromIntegral h/2)
centerd :: Direction -> Point -> Rectangle -> Point
centerd d (P xx yy) (Rectangle x y w h) | d == U || d == D = P xx (fromIntegral y + fromIntegral h/2)
| otherwise = P (fromIntegral x + fromIntegral w/2) yy
inr :: Direction -> Point -> Rectangle -> Bool
inr D (P x y) (Rectangle l yr w h) = x >= fromIntegral l && x < fromIntegral l + fromIntegral w &&
y < fromIntegral yr + fromIntegral h
inr U (P x y) (Rectangle l yr w _) = x >= fromIntegral l && x < fromIntegral l + fromIntegral w &&
y > fromIntegral yr
inr R (P a x) (Rectangle b l _ w) = x >= fromIntegral l && x < fromIntegral l + fromIntegral w &&
a < fromIntegral b
inr L (P a x) (Rectangle b l c w) = x >= fromIntegral l && x < fromIntegral l + fromIntegral w &&
a > fromIntegral b + fromIntegral c
inrect :: Point -> Rectangle -> Bool
inrect (P x y) (Rectangle a b w h) = x > fromIntegral a && x < fromIntegral a + fromIntegral w &&
y > fromIntegral b && y < fromIntegral b + fromIntegral h
sortby :: Direction -> [(a,Rectangle)] -> [(a,Rectangle)]
sortby U = sortBy (\(_,Rectangle _ y _ _) (_,Rectangle _ y' _ _) -> compare y' y)
sortby D = sortBy (\(_,Rectangle _ y _ _) (_,Rectangle _ y' _ _) -> compare y y')
sortby R = sortBy (\(_,Rectangle x _ _ _) (_,Rectangle x' _ _ _) -> compare x x')
sortby L = sortBy (\(_,Rectangle x _ _ _) (_,Rectangle x' _ _ _) -> compare x' x)
data Point = P Double Double
|
