about summary refs log tree commit diff
path: root/exwm-workspace.el
blob: 1c23ca0229da5044f36c904840534d7b423413ec (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
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
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
;;; exwm-workspace.el --- Workspace Module for EXWM  -*- lexical-binding: t -*-

;; Copyright (C) 2015-2016 Free Software Foundation, Inc.

;; Author: Chris Feng <chris.w.feng@gmail.com>

;; This file is part of GNU Emacs.

;; GNU Emacs 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.

;; GNU Emacs 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This module adds workspace support for EXWM.

;; Todo:
;; + Add system tray support.

;;; Code:

(require 'exwm-core)

(defvar exwm-workspace-number 4 "Number of workspaces (1 ~ 10).")
(defvar exwm-workspace--list nil "List of all workspaces (Emacs frames).")
(defvar exwm-workspace--switch-map
  (let ((map (make-sparse-keymap)))
    (define-key map [t] (lambda () (interactive)))
    (dotimes (i 10)
      (define-key map (int-to-string i)
        `(lambda ()
           (interactive)
           (when (< ,i exwm-workspace-number)
             (goto-history-element ,(1+ i))
             (exit-minibuffer)))))
    (define-key map "\C-a" (lambda () (interactive) (goto-history-element 1)))
    (define-key map "\C-e" (lambda ()
                             (interactive)
                             (goto-history-element exwm-workspace-number)))
    (define-key map "\C-g" #'abort-recursive-edit)
    (define-key map "\C-]" #'abort-recursive-edit)
    (define-key map "\C-j" #'exit-minibuffer)
    ;; (define-key map "\C-m" #'exit-minibuffer) ;not working
    (define-key map [return] #'exit-minibuffer)
    (define-key map " " #'exit-minibuffer)
    (define-key map "\C-f" #'previous-history-element)
    (define-key map "\C-b" #'next-history-element)
    ;; Alternative keys
    (define-key map [right] #'previous-history-element)
    (define-key map [left] #'next-history-element)
    map)
  "Keymap used for interactively switch workspace.")

(defvar exwm-workspace--switch-history nil
  "History for `read-from-minibuffer' to interactively switch workspace.")
(defvar exwm-workspace--switch-history-outdated nil
  "Non-nil to indicate `exwm-workspace--switch-history' is outdated.")

;;;###autoload
(defun exwm-workspace--update-switch-history ()
  "Update the history for switching workspace to reflect the latest status."
  (when exwm-workspace--switch-history-outdated
    (setq exwm-workspace--switch-history-outdated nil)
    (let ((sequence (number-sequence 0 (1- exwm-workspace-number)))
          (not-empty (make-vector exwm-workspace-number nil)))
      (dolist (i exwm--id-buffer-alist)
        (with-current-buffer (cdr i)
          (when exwm--frame
            (setf (aref not-empty
                        (cl-position exwm--frame exwm-workspace--list))
                  t))))
      (setq exwm-workspace--switch-history
            (mapcar
             (lambda (i)
               (mapconcat
                (lambda (j)
                  (format (if (= i j) "[%s]" " %s ")
                          (propertize
                           (int-to-string j)
                           'face
                           (cond ((frame-parameter (elt exwm-workspace--list j)
                                                   'exwm--urgency)
                                  '(:foreground "orange"))
                                 ((aref not-empty j) '(:foreground "green"))
                                 (t nil)))))
                sequence ""))
             sequence)))))

(defvar exwm-workspace--current nil "Current active workspace.")
(defvar exwm-workspace-current-index 0 "Index of current active workspace.")
(defvar exwm-workspace-show-all-buffers nil
  "Non-nil to show buffers on other workspaces.")
(defvar exwm-workspace--minibuffer nil
  "The minibuffer frame shared among all frames.")
(defvar exwm-workspace-minibuffer-position nil
  "Position of the minibuffer frame.

Value nil means to use the default position which is fixed at bottom, while
'top and 'bottom mean to use an auto-hiding minibuffer.")
(defvar exwm-workspace-display-echo-area-timeout 1
  "Timeout for displaying echo area.")
(defvar exwm-workspace--display-echo-area-timer nil
  "Timer for auto-hiding echo area.")

(defun exwm-workspace--resize-minibuffer (&optional width height)
  "Resize minibuffer (and its container) to fit the size of workspace.

If WIDTH and HEIGHT of the workspace is not specified, they're get from the
workspace frame."
  (let ((y (if (eq exwm-workspace-minibuffer-position 'top)
               0
             (- (or height (frame-pixel-height exwm-workspace--current))
                (frame-pixel-height exwm-workspace--minibuffer))))
        (width (or width (frame-pixel-width exwm-workspace--current)))
        (container (frame-parameter exwm-workspace--minibuffer
                                    'exwm-container)))
    (xcb:+request exwm--connection
        (make-instance 'xcb:ConfigureWindow
                       :window container
                       :value-mask (logior xcb:ConfigWindow:Y
                                           xcb:ConfigWindow:Width
                                           xcb:ConfigWindow:StackMode)
                       :y y
                       :width width
                       :stack-mode xcb:StackMode:Above))
    (set-frame-width exwm-workspace--minibuffer width nil t)))

;;;###autoload
(defun exwm-workspace-switch (index &optional force)
  "Switch to workspace INDEX. Query for INDEX if it's not specified.

The optional FORCE option is for internal use only."
  (interactive
   (list
    (unless (and (eq major-mode 'exwm-mode) exwm--fullscreen) ;it's invisible
      (exwm-workspace--update-switch-history)
      (let* ((history-add-new-input nil) ;prevent modifying history
             (idx (read-from-minibuffer
                   "Workspace: " (elt exwm-workspace--switch-history
                                      exwm-workspace-current-index)
                   exwm-workspace--switch-map nil
                   `(exwm-workspace--switch-history
                     . ,(1+ exwm-workspace-current-index)))))
        (cl-position idx exwm-workspace--switch-history :test #'equal)))))
  (when index
    (unless (and (<= 0 index) (< index exwm-workspace-number))
      (user-error "[EXWM] Workspace index out of range: %d" index))
    (when (or force (/= exwm-workspace-current-index index))
      (let* ((frame (elt exwm-workspace--list index))
             (workspace (frame-parameter frame 'exwm-workspace)))
        (xcb:+request exwm--connection
            (make-instance 'xcb:ConfigureWindow
                           :window workspace
                           :value-mask xcb:ConfigWindow:StackMode
                           :stack-mode xcb:StackMode:Above))
        (setq exwm-workspace--current frame
              exwm-workspace-current-index index)
        (select-window (frame-selected-window frame))
        ;; Close the (possible) active minibuffer
        (when (active-minibuffer-window)
          (run-with-idle-timer 0 nil (lambda () (abort-recursive-edit))))
        (if (not (memq exwm-workspace-minibuffer-position '(top bottom)))
            (setq default-minibuffer-frame frame)
          ;; Resize/reposition the minibuffer frame
          (xcb:+request exwm--connection
              (make-instance 'xcb:ReparentWindow
                             :window
                             (frame-parameter exwm-workspace--minibuffer
                                              'exwm-container)
                             :parent (frame-parameter frame 'exwm-workspace)
                             :x 0 :y 0))
          (exwm-workspace--resize-minibuffer))
        ;; Hide windows in other workspaces by preprending a space
        (unless exwm-workspace-show-all-buffers
          (dolist (i exwm--id-buffer-alist)
            (with-current-buffer (cdr i)
              (let ((name (replace-regexp-in-string "^\\s-*" ""
                                                    (buffer-name))))
                (exwm-workspace-rename-buffer (if (eq frame exwm--frame)
                                                  name
                                                (concat " " name)))))))
        ;; Update demands attention flag
        (set-frame-parameter frame 'exwm--urgency nil)
        ;; Update switch workspace history
        (setq exwm-workspace--switch-history-outdated t)
        ;; Update _NET_CURRENT_DESKTOP
        (xcb:+request exwm--connection
            (make-instance 'xcb:ewmh:set-_NET_CURRENT_DESKTOP
                           :window exwm--root :data index))
        (xcb:flush exwm--connection)))))

;;;###autoload
(defun exwm-workspace-move-window (index &optional id)
  "Move window ID to workspace INDEX."
  (interactive
   (list
    (progn
      (exwm-workspace--update-switch-history)
      (let* ((history-add-new-input nil)  ;prevent modifying history
             (idx (read-from-minibuffer
                   "Workspace: " (elt exwm-workspace--switch-history
                                      exwm-workspace-current-index)
                   exwm-workspace--switch-map nil
                   `(exwm-workspace--switch-history
                     . ,(1+ exwm-workspace-current-index)))))
        (cl-position idx exwm-workspace--switch-history :test #'equal)))))
  (unless id (setq id (exwm--buffer->id (window-buffer))))
  (unless (and (<= 0 index) (< index exwm-workspace-number))
    (user-error "[EXWM] Workspace index out of range: %d" index))
  (with-current-buffer (exwm--id->buffer id)
    (let ((frame (elt exwm-workspace--list index)))
      (unless (eq exwm--frame frame)
        (unless exwm-workspace-show-all-buffers
          (let ((name (replace-regexp-in-string "^\\s-*" "" (buffer-name))))
            (exwm-workspace-rename-buffer
             (if (= index exwm-workspace-current-index)
                 name
               (concat " " name)))))
        (setq exwm--frame frame)
        (if exwm--floating-frame
            ;; Move the floating frame is enough
            (progn
              (xcb:+request exwm--connection
                  (make-instance 'xcb:ReparentWindow
                                 :window exwm--container
                                 :parent
                                 (frame-parameter frame 'exwm-workspace)
                                 :x 0 :y 0))
              (xcb:flush exwm--connection))
          ;; Move the window itself
          (if (/= index exwm-workspace-current-index)
              (bury-buffer)
            (set-window-buffer (get-buffer-window (current-buffer) t)
                               (or (get-buffer "*scratch*")
                                   (progn
                                     (set-buffer-major-mode
                                      (get-buffer-create "*scratch*"))
                                     (get-buffer "*scratch*")))))
          (exwm-layout--hide id)
          (xcb:+request exwm--connection
              (make-instance 'xcb:ReparentWindow
                             ;; (current-buffer) is changed.
                             :window (with-current-buffer (exwm--id->buffer id)
                                       exwm--container)
                             :parent (frame-parameter frame 'exwm-workspace)
                             :x 0 :y 0))
          (xcb:flush exwm--connection)
          (set-window-buffer (frame-selected-window frame)
                             (exwm--id->buffer id)))))
    (setq exwm-workspace--switch-history-outdated t)))

(defun exwm-workspace-switch-to-buffer ()
  "Make the current Emacs window display another buffer."
  (interactive)
  ;; Show all buffers
  (unless exwm-workspace-show-all-buffers
    (dolist (pair exwm--id-buffer-alist)
      (with-current-buffer (cdr pair)
        (when (= ?\s (aref (buffer-name) 0))
          (rename-buffer (substring (buffer-name) 1))))))
  (let ((buffer (read-buffer "Switch to buffer: " nil t)))
    (when buffer
      (with-current-buffer buffer
        (if (and (eq major-mode 'exwm-mode)
                 (not (eq exwm--frame exwm-workspace--current)))
            (exwm-workspace-move-window exwm-workspace-current-index
                                        exwm--id)
          (switch-to-buffer buffer)))))
  ;; Hide buffers on other workspaces
  (unless exwm-workspace-show-all-buffers
    (dolist (pair exwm--id-buffer-alist)
      (with-current-buffer (cdr pair)
        (unless (or (eq exwm--frame exwm-workspace--current)
                    (= ?\s (aref (buffer-name) 0)))
          (rename-buffer (concat " " (buffer-name))))))))

(defun exwm-workspace-rename-buffer (newname)
  "Rename a buffer."
  (let ((hidden (= ?\s (aref newname 0)))
        (basename (replace-regexp-in-string "<[0-9]+>$" "" newname))
        (counter 1)
        tmp)
    (when hidden (setq basename (substring basename 1)))
    (setq newname basename)
    (while (and (setq tmp (or (get-buffer newname)
                              (get-buffer (concat " " newname))))
                (not (eq tmp (current-buffer))))
      (setq newname (format "%s<%d>" basename (cl-incf counter))))
    (rename-buffer (concat (and hidden " ") newname))))

(defun exwm-workspace--x-create-frame (orig-fun params)
  "Set override-redirect on the frame created by `x-create-frame'."
  (let ((frame (funcall orig-fun params)))
    (xcb:+request exwm--connection
        (make-instance 'xcb:ChangeWindowAttributes
                       :window (string-to-number
                                (frame-parameter frame 'outer-window-id))
                       :value-mask xcb:CW:OverrideRedirect
                       :override-redirect 1))
    (xcb:flush exwm--connection)
    frame))

(defun exwm-workspace--update-minibuffer (&optional echo-area)
  "Update the minibuffer frame."
  (let ((height
         (with-current-buffer
             (window-buffer (minibuffer-window exwm-workspace--minibuffer))
           (max 1
                (if echo-area
                    (let ((width (frame-width exwm-workspace--minibuffer))
                          (result 0))
                      (mapc (lambda (i)
                              (setq result
                                    (+ result
                                       (ceiling (1+ (length i)) width))))
                            (split-string (current-message) "\n"))
                      result)
                  (count-screen-lines))))))
    (when (and (integerp max-mini-window-height)
               (> height max-mini-window-height))
      (setq height max-mini-window-height))
    (set-frame-height exwm-workspace--minibuffer height)))

(defun exwm-workspace--on-ConfigureNotify (data _synthetic)
  "Adjust the container to fit the minibuffer frame."
  (let ((obj (make-instance 'xcb:ConfigureNotify))
        value-mask y)
    (xcb:unmarshal obj data)
    (with-slots (window height) obj
      (when (eq (frame-parameter exwm-workspace--minibuffer 'exwm-outer-id)
                window)
        (when (and (floatp max-mini-window-height)
                   (> height (* max-mini-window-height
                                (frame-pixel-height exwm-workspace--current))))
          (setq height (floor
                        (* max-mini-window-height
                           (frame-pixel-height exwm-workspace--current))))
          (xcb:+request exwm--connection
              (make-instance 'xcb:ConfigureWindow
                             :window window
                             :value-mask xcb:ConfigWindow:Height
                             :height height)))
        (if (eq exwm-workspace-minibuffer-position 'top)
            (setq value-mask xcb:ConfigWindow:Height
                  y 0)
          (setq value-mask (logior xcb:ConfigWindow:Y xcb:ConfigWindow:Height)
                y (- (frame-pixel-height exwm-workspace--current) height)))
        (xcb:+request exwm--connection
            (make-instance 'xcb:ConfigureWindow
                           :window (frame-parameter exwm-workspace--minibuffer
                                                    'exwm-container)
                           :value-mask value-mask
                           :y y
                           :height height))
        (xcb:flush exwm--connection)))))

(defun exwm-workspace--display-buffer (buffer alist)
  "Display buffer in the current workspace frame.

This functions is modified from `display-buffer-reuse-window' and
`display-buffer-pop-up-window'."
  (when (eq (selected-frame) exwm-workspace--minibuffer)
    (setq buffer (get-buffer buffer))   ;convert string to buffer.
    (let (window)
      (if (setq window (get-buffer-window buffer exwm-workspace--current))
          (window--display-buffer buffer window 'reuse alist)
        (when (setq window (or (window--try-to-split-window
                                (get-largest-window exwm-workspace--current t)
                                alist)
                               (window--try-to-split-window
                                (get-lru-window exwm-workspace--current t)
                                alist)))
          (window--display-buffer
           buffer window 'window alist display-buffer-mark-dedicated))))))

(defun exwm-workspace--show-minibuffer ()
  "Show the minibuffer frame."
  ;; Cancel pending timer.
  (when exwm-workspace--display-echo-area-timer
    (cancel-timer exwm-workspace--display-echo-area-timer)
    (setq exwm-workspace--display-echo-area-timer nil))
  ;; Show the minibuffer frame.
  (xcb:+request exwm--connection
      (make-instance 'xcb:MapWindow
                     :window (frame-parameter exwm-workspace--minibuffer
                                              'exwm-container)))
  (xcb:flush exwm--connection)
  ;; Unfortunately we need the following lines to workaround a cursor
  ;; flickering issue for line-mode floating X windows.  They just make the
  ;; minibuffer appear to be focused.
  (with-current-buffer (window-buffer (minibuffer-window
                                       exwm-workspace--minibuffer))
    (setq cursor-in-non-selected-windows
          (frame-parameter exwm-workspace--minibuffer 'cursor-type))))

(defun exwm-workspace--hide-minibuffer ()
  "Hide the minibuffer frame."
  ;; Hide the minibuffer frame.
  (xcb:+request exwm--connection
      (make-instance 'xcb:UnmapWindow
                     :window (frame-parameter exwm-workspace--minibuffer
                                              'exwm-container)))
  (xcb:flush exwm--connection))

(defun exwm-workspace--on-minibuffer-setup ()
  "Run in minibuffer-setup-hook to show the minibuffer and its container."
  (unless (> -1 (minibuffer-depth))
    (add-hook 'post-command-hook #'exwm-workspace--update-minibuffer)
    (exwm-workspace--show-minibuffer)
    ;; Set input focus on the Emacs frame
    (x-focus-frame (window-frame (minibuffer-selected-window)))))

(defun exwm-workspace--on-minibuffer-exit ()
  "Run in minibuffer-exit-hook to hide the minibuffer container."
  (unless (> -1 (minibuffer-depth))
    (remove-hook 'post-command-hook #'exwm-workspace--update-minibuffer)
    (exwm-workspace--hide-minibuffer)))

(defvar exwm-input--during-command)

(defun exwm-workspace--on-echo-area-dirty ()
  "Run when new message arrives to show the echo area and its container."
  (when (and (not (active-minibuffer-window))
             (or (current-message)
                 cursor-in-echo-area))
    (exwm-workspace--update-minibuffer t)
    (exwm-workspace--show-minibuffer)
    (unless (or (not exwm-workspace-display-echo-area-timeout)
                exwm-input--during-command ;e.g. read-event
                input-method-use-echo-area)
      (setq exwm-workspace--display-echo-area-timer
            (run-with-timer exwm-workspace-display-echo-area-timeout nil
                            #'exwm-workspace--on-echo-area-clear)))))

(defun exwm-workspace--on-echo-area-clear ()
  "Run in echo-area-clear-hook to hide echo area container."
  (unless (active-minibuffer-window)
    (exwm-workspace--hide-minibuffer))
  (when exwm-workspace--display-echo-area-timer
    (cancel-timer exwm-workspace--display-echo-area-timer)
    (setq exwm-workspace--display-echo-area-timer nil)))

(defun exwm-workspace--init ()
  "Initialize workspace module."
  (cl-assert (and (< 0 exwm-workspace-number) (>= 10 exwm-workspace-number)))
  ;; Prevent unexpected exit
  (setq confirm-kill-emacs
        (lambda (prompt)
          (pcase (length exwm--id-buffer-alist)
            (0 (y-or-n-p prompt))
            (x (yes-or-no-p (format "[EXWM] %d window%s currently alive. %s"
                                    x (if (= x 1) "" "s") prompt))))))
  (if (not (memq exwm-workspace-minibuffer-position '(top bottom)))
      ;; Initialize workspaces with minibuffers.
      (progn
        (setq exwm-workspace--list (frame-list))
        (when (< 1 (length exwm-workspace--list))
          ;; Emacs client creates an extra (but unusable) frame.
          (dolist (i exwm-workspace--list)
            (unless (frame-parameter i 'window-id)
              (setq exwm-workspace--list (delq i exwm-workspace--list))))
          (cl-assert (= 1 (length exwm-workspace--list)))
          ;; Prevent user from deleting this frame by accident.
          (set-frame-parameter (car exwm-workspace--list) 'client nil))
        ;; Create remaining frames.
        (dotimes (_ (1- exwm-workspace-number))
          (nconc exwm-workspace--list
                 (list (make-frame '((window-system . x)))))))
    ;; Initialize workspaces without minibuffers.
    (let ((old-frames (frame-list)))
      (setq exwm-workspace--minibuffer
            (make-frame '((window-system . x) (minibuffer . only)
                          (left . 10000) (right . 10000)
                          (width . 0) (height . 0)))
            default-minibuffer-frame exwm-workspace--minibuffer)
      ;; Remove/hide existing frames.
      (dolist (f old-frames)
        (if (frame-parameter f 'client)
            (make-frame-invisible f)
          (delete-frame f))))
    (let ((outer-id (string-to-number
                     (frame-parameter exwm-workspace--minibuffer
                                      'outer-window-id)))
          (container (xcb:generate-id exwm--connection)))
      (set-frame-parameter exwm-workspace--minibuffer 'exwm-outer-id outer-id)
      (set-frame-parameter exwm-workspace--minibuffer 'exwm-container
                           container)
      (xcb:+request exwm--connection
          (make-instance 'xcb:CreateWindow
                         :depth 0 :wid container :parent exwm--root
                         :x -1 :y -1 :width 1 :height 1
                         :border-width 0 :class xcb:WindowClass:CopyFromParent
                         :visual 0        ;CopyFromParent
                         :value-mask xcb:CW:OverrideRedirect
                         :override-redirect 1))
      (exwm--debug
       (xcb:+request exwm--connection
           (make-instance 'xcb:ewmh:set-_NET_WM_NAME
                          :window container
                          :data "Minibuffer container")))
      (xcb:+request exwm--connection
          (make-instance 'xcb:ReparentWindow
                         :window outer-id :parent container :x 0 :y 0))
      ;; Attach event listener for monitoring the frame
      (xcb:+request exwm--connection
          (make-instance 'xcb:ChangeWindowAttributes
                         :window outer-id
                         :value-mask xcb:CW:EventMask
                         :event-mask xcb:EventMask:StructureNotify))
      (xcb:+event exwm--connection 'xcb:ConfigureNotify
                  #'exwm-workspace--on-ConfigureNotify))
    ;; Show/hide minibuffer / echo area when they're active/inactive.
    (add-hook 'minibuffer-setup-hook #'exwm-workspace--on-minibuffer-setup)
    (add-hook 'minibuffer-exit-hook #'exwm-workspace--on-minibuffer-exit)
    (run-with-idle-timer 0 t #'exwm-workspace--on-echo-area-dirty)
    (add-hook 'echo-area-clear-hook #'exwm-workspace--on-echo-area-clear)
    ;; Create workspace frames.
    (dotimes (_ exwm-workspace-number)
      (push (make-frame `((window-system . x)
                          (minibuffer . ,(minibuffer-window
                                          exwm-workspace--minibuffer))))
            exwm-workspace--list))
    ;; The default behavior of `display-buffer' (indirectly called by
    ;; `minibuffer-completion-help') is not correct here.
    (cl-pushnew '(exwm-workspace--display-buffer) display-buffer-alist))
  ;; Configure workspaces
  (dolist (i exwm-workspace--list)
    (let ((outer-id (string-to-number (frame-parameter i 'outer-window-id)))
          (workspace (xcb:generate-id exwm--connection)))
      ;; Save window IDs
      (set-frame-parameter i 'exwm-outer-id outer-id)
      (set-frame-parameter i 'exwm-workspace workspace)
      (xcb:+request exwm--connection
          (make-instance 'xcb:CreateWindow
                         :depth 0 :wid workspace :parent exwm--root
                         :x 0 :y 0
                         :width (x-display-pixel-width)
                         :height (x-display-pixel-height)
                         :border-width 0 :class xcb:WindowClass:CopyFromParent
                         :visual 0      ;CopyFromParent
                         :value-mask (logior xcb:CW:OverrideRedirect
                                             xcb:CW:EventMask)
                         :override-redirect 1
                         :event-mask xcb:EventMask:SubstructureRedirect))
      (exwm--debug
       (xcb:+request exwm--connection
           (make-instance 'xcb:ewmh:set-_NET_WM_NAME
                          :window workspace
                          :data
                          (format "EXWM workspace %d"
                                  (cl-position i exwm-workspace--list)))))
      (xcb:+request exwm--connection
          (make-instance 'xcb:ReparentWindow
                         :window outer-id :parent workspace :x 0 :y 0))
      (xcb:+request exwm--connection
          (make-instance 'xcb:MapWindow :window workspace))))
  (xcb:flush exwm--connection)
  ;; We have to advice `x-create-frame' or every call to it would hang EXWM
  (advice-add 'x-create-frame :around #'exwm-workspace--x-create-frame)
  ;; Delay making the workspaces fullscreen until Emacs becomes idle
  (run-with-idle-timer 0 nil
                       (lambda ()
                         (dolist (i exwm-workspace--list)
                           (set-frame-parameter i 'fullscreen 'fullboth))))
  ;; Set _NET_VIRTUAL_ROOTS
  (xcb:+request exwm--connection
      (make-instance 'xcb:ewmh:set-_NET_VIRTUAL_ROOTS
                     :window exwm--root
                     :data (vconcat (mapcar
                                     (lambda (i)
                                       (frame-parameter i 'exwm-workspace))
                                     exwm-workspace--list))))
  ;; Switch to the first workspace
  (exwm-workspace-switch 0 t))



(provide 'exwm-workspace)

;;; exwm-workspace.el ends here