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
221
222
223
224
225
226
227
228
229
230
231
232
|
{-# OPTIONS_GHC -fno-warn-missing-signatures #-}
{-# LANGUAGE MultiParamTypeClasses, Rank2Types #-}
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Layout.Groups.Helpers
-- Copyright : Quentin Moser <moserq@gmail.com>
-- License : BSD-style (see LICENSE)
--
-- Maintainer : orphaned
-- Stability : stable
-- Portability : unportable
--
-- Utility functions for "XMonad.Layout.Groups".
--
-----------------------------------------------------------------------------
module XMonad.Layout.Groups.Helpers ( -- * Usage
-- $usage
-- ** Layout-generic actions
swapUp
, swapDown
, swapMaster
, focusUp
, focusDown
, focusMaster
, toggleFocusFloat
-- ** 'G.Groups'-secific actions
, swapGroupUp
, swapGroupDown
, swapGroupMaster
, focusGroupUp
, focusGroupDown
, focusGroupMaster
, moveToGroupUp
, moveToGroupDown
, moveToNewGroupUp
, moveToNewGroupDown
, splitGroup ) where
import XMonad hiding ((|||))
import qualified XMonad.StackSet as W
import qualified XMonad.Layout.Groups as G
import XMonad.Actions.MessageFeedback
import Control.Monad (unless)
import qualified Data.Map as M
-- $usage
--
-- This module provides helpers functions for use with "XMonad.Layout.Groups"-based
-- layouts. You can use its contents by adding
--
-- > import XMonad.Layout.Groups.Helpers
--
-- to the top of your @.\/.xmonad\/xmonad.hs@.
--
-- "XMonad.Layout.Groups"-based layouts do not have the same notion
-- of window ordering as the rest of XMonad. For this reason, the usual
-- ways of reordering windows and moving focus do not work with them.
-- "XMonad.Layout.Groups" provides 'Message's that can be used to obtain
-- the right effect.
--
-- But what if you want to use both 'G.Groups' and other layouts?
-- This module provides actions that try to send 'G.GroupsMessage's, and
-- fall back to the classic way if the current layout doesn't hande them.
-- They are in the section called \"Layout-generic actions\".
--
-- The sections \"Groups-specific actions\" contains actions that don't make
-- sense for non-'G.Groups'-based layouts. These are simply wrappers around
-- the equivalent 'G.GroupsMessage's, but are included so you don't have to
-- write @sendMessage $ Modify $ ...@ everytime.
--
-- This module exports many operations with the same names as
-- 'G.ModifySpec's from "XMonad.Layout.Groups", so if you want
-- to import both, we suggest to import "XMonad.Layout.Groups"
-- qualified:
--
-- > import qualified XMonad.Layout.Groups as G
--
-- For more information on how to extend your layour hook and key bindings, see
-- "XMonad.Doc.Extending".
-- ** Layout-generic actions
-- #Layout-generic actions#
alt :: G.ModifySpec -> (WindowSet -> WindowSet) -> X ()
alt f g = alt2 (G.Modify f) $ windows g
alt2 :: G.GroupsMessage -> X () -> X ()
alt2 m x = do b <- send m
unless b x
-- | Swap the focused window with the previous one
swapUp :: X ()
swapUp = alt G.swapUp W.swapUp
-- | Swap the focused window with the next one
swapDown :: X ()
swapDown = alt G.swapDown W.swapDown
-- | Swap the focused window with the master window
swapMaster :: X ()
swapMaster = alt G.swapMaster W.swapMaster
-- | If the focused window is floating, focus the next floating
-- window. otherwise, focus the next non-floating one.
focusUp :: X ()
focusUp = ifFloat focusFloatUp focusNonFloatUp
-- | If the focused window is floating, focus the next floating
-- window. otherwise, focus the next non-floating one.
focusDown :: X ()
focusDown = ifFloat focusFloatDown focusNonFloatDown
-- | Move focus to the master window
focusMaster :: X ()
focusMaster = alt G.focusMaster W.shiftMaster
-- | Move focus between the floating and non-floating layers
toggleFocusFloat :: X ()
toggleFocusFloat = ifFloat focusNonFloat focusFloatUp
-- *** Floating layer helpers
getFloats :: X [Window]
getFloats = gets $ M.keys . W.floating . windowset
getWindows :: X [Window]
getWindows = gets $ W.integrate' . W.stack . W.workspace . W.current . windowset
ifFloat :: X () -> X () -> X ()
ifFloat x1 x2 = withFocused $ \w -> do floats <- getFloats
if elem w floats then x1 else x2
focusNonFloat :: X ()
focusNonFloat = alt2 G.Refocus helper
where helper = withFocused $ \w -> do
ws <- getWindows
floats <- getFloats
let (before, after) = span (/=w) ws
case filter (flip notElem floats) $ after ++ before of
[] -> return ()
w':_ -> focus w'
focusHelper :: (Bool -> Bool) -- ^ if you want to focus a floating window, 'id'.
-- if you want a non-floating one, 'not'.
-> ([Window] -> [Window]) -- ^ if you want the next window, 'id'.
-- if you want the previous one, 'reverse'.
-> X ()
focusHelper f g = withFocused $ \w -> do
ws <- getWindows
let (before, _:after) = span (/=w) ws
let toFocus = g $ after ++ before
floats <- getFloats
case filter (f . flip elem floats) toFocus of
[] -> return ()
w':_ -> focus w'
focusNonFloatUp :: X ()
focusNonFloatUp = alt2 (G.Modify G.focusUp) $ focusHelper not reverse
focusNonFloatDown :: X ()
focusNonFloatDown = alt2 (G.Modify G.focusDown) $ focusHelper not id
focusFloatUp :: X ()
focusFloatUp = focusHelper id reverse
focusFloatDown :: X ()
focusFloatDown = focusHelper id id
-- ** Groups-specific actions
wrap :: G.ModifySpec -> X ()
wrap = sendMessage . G.Modify
-- | Swap the focused group with the previous one
swapGroupUp :: X ()
swapGroupUp = wrap G.swapGroupUp
-- | Swap the focused group with the next one
swapGroupDown :: X ()
swapGroupDown = wrap G.swapGroupDown
-- | Swap the focused group with the master group
swapGroupMaster :: X ()
swapGroupMaster = wrap G.swapGroupMaster
-- | Move the focus to the previous group
focusGroupUp :: X ()
focusGroupUp = wrap G.focusGroupUp
-- | Move the focus to the next group
focusGroupDown :: X ()
focusGroupDown = wrap G.focusGroupDown
-- | Move the focus to the master group
focusGroupMaster :: X ()
focusGroupMaster = wrap G.focusGroupMaster
-- | Move the focused window to the previous group. The 'Bool' argument
-- determines what will be done if the focused window is in the very first
-- group: Wrap back to the end ('True'), or create a new group before
-- it ('False').
moveToGroupUp :: Bool -> X ()
moveToGroupUp = wrap . G.moveToGroupUp
-- | Move the focused window to the next group. The 'Bool' argument
-- determines what will be done if the focused window is in the very last
-- group: Wrap back to the beginning ('True'), or create a new group after
-- it ('False').
moveToGroupDown :: Bool -> X ()
moveToGroupDown = wrap . G.moveToGroupDown
-- | Move the focused window to a new group before the current one
moveToNewGroupUp :: X ()
moveToNewGroupUp = wrap G.moveToNewGroupUp
-- | Move the focused window to a new group after the current one
moveToNewGroupDown :: X ()
moveToNewGroupDown = wrap G.moveToNewGroupDown
-- | Split the focused group in two at the position of the focused
-- window.
splitGroup :: X ()
splitGroup = wrap G.splitGroup
|
