blob: cd40fb43bd3f3e63602e79b2a6b0cead9509760c (
plain) (
blame)
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
|
;;; exwm-randr.el --- RandR Module for EXWM -*- lexical-binding: t -*-
;; Copyright (C) 2015 Chris Feng
;; Author: Chris Feng <chris.w.feng@gmail.com>
;; Keywords: unix
;; This file is not part of GNU Emacs.
;; This file is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this file. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This module adds RandR support for EXWM. Currently it requires external
;; tools such as xrandr(1) to properly configure RandR first. This dependency
;; may be removed in the future, but more work is needed before that.
;; To use this module, first load/enable it and properly configure the variable
;; `exwm-randr-workspace-output-plist':
;; (require 'exwm-randr)
;; (setq exwm-randr-workspace-output-plist '(0 "VGA1"))
;; (exwm-randr-enable)
;; Then configure RandR with 'xrandr':
;; $ xrandr --output VGA1 --left-of LVDS1 --auto
;; With above lines, workspace 0 should be assigned to the output named "VGA1",
;; staying at the left of other workspaces on the output "LVDS1".
;; Todo:
;; + Update EWMH hints.
;; References:
;; + RandR (http://www.x.org/archive/X11R7.7/doc/randrproto/randrproto.txt)
;;; Code:
(require 'xcb-randr)
(defvar exwm-randr-workspace-output-plist nil)
(defun exwm-randr--refresh ()
"Refresh workspaces according to the updated RandR info."
(let (output-plist default-geometry)
;; Query all outputs
(with-slots (config-timestamp outputs)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:randr:GetScreenResources
:window exwm--root))
(dolist (output outputs)
(with-slots (crtc connection name)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:randr:GetOutputInfo
:output output
:config-timestamp config-timestamp))
(setq name ;UTF-8 encoded
(decode-coding-string (apply 'unibyte-string name) 'utf-8))
(if (or (/= connection xcb:randr:Connection:Connected)
(= 0 crtc)) ;FIXME
(plist-put output-plist name nil)
(with-slots (x y width height)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:randr:GetCrtcInfo
:crtc crtc
:config-timestamp config-timestamp))
(setq output-plist (plist-put output-plist name
(vector x y width height)))
(unless default-geometry ;assume the first output as primary
(setq default-geometry (vector x y width height))))))))
(cl-assert (<= 2 (length output-plist)))
(dotimes (i exwm-workspace-number)
(let* ((output (plist-get exwm-randr-workspace-output-plist i))
(geometry (lax-plist-get output-plist output))
(frame (elt exwm-workspace--list i)))
(unless geometry
(setq geometry default-geometry
output nil))
(set-frame-parameter frame 'exwm-randr-output output)
(set-frame-parameter frame 'exwm-x (elt geometry 0))
(set-frame-parameter frame 'exwm-y (elt geometry 1))
(xcb:+request exwm--connection
(make-instance 'xcb:ConfigureWindow
:window (frame-parameter frame 'exwm-outer-id)
:value-mask (logior xcb:ConfigWindow:X
xcb:ConfigWindow:Y
xcb:ConfigWindow:Width
xcb:ConfigWindow:Height)
:x (elt geometry 0) :y (elt geometry 1)
:width (elt geometry 2) :height (elt geometry 3)))))
(xcb:flush exwm--connection)))
(defun exwm-randr--init ()
"Initialize RandR extension and EXWM RandR module."
(if (= 0 (slot-value (xcb:get-extension-data exwm--connection 'xcb:randr)
'present))
(error "[EXWM] RandR extension is not supported by the server")
(with-slots (major-version minor-version)
(xcb:+request-unchecked+reply exwm--connection
(make-instance 'xcb:randr:QueryVersion
:major-version 1 :minor-version 2))
(if (or (/= major-version 1) (< minor-version 2))
(error "[EXWM] The server only support RandR version up to %d.%d"
major-version minor-version)
(exwm-randr--refresh)
(xcb:+event exwm--connection 'xcb:randr:ScreenChangeNotify
(lambda (data synthetic)
(exwm--log "(RandR) ScreenChangeNotify")
(exwm-randr--refresh)))
;; (xcb:+event exwm--connection 'xcb:randr:Notify
;; (lambda (data synthetic)
;; (exwm--log "(RandR) Notify")
;; (exwm-randr--refresh)))
(xcb:+request exwm--connection
(make-instance 'xcb:randr:SelectInput
:window exwm--root
:enable xcb:randr:NotifyMask:ScreenChange
;; :enable (logior
;; xcb:randr:NotifyMask:ScreenChange
;; xcb:randr:NotifyMask:OutputChange
;; xcb:randr:NotifyMask:OutputProperty
;; xcb:randr:NotifyMask:CrtcChange)
))
(xcb:flush exwm--connection)))))
(defun exwm-randr-enable ()
"Enable RandR support for EXWM."
(add-hook 'exwm-init-hook 'exwm-randr--init))
(provide 'exwm-randr)
;;; exwm-randr.el ends here
|
