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
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
|
;;; haiku-win.el --- set up windowing on Haiku -*- lexical-binding: t -*-
;; Copyright (C) 2021-2025 Free Software Foundation, Inc.
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Support for using Haiku's BeOS derived windowing system.
;;; Code:
(eval-when-compile (require 'cl-lib))
(eval-when-compile (require 'subr-x))
(unless (featurep 'haiku)
(error "%s: Loading haiku-win without having Haiku"
invocation-name))
;; Documentation-purposes only: actually loaded in loadup.el.
(require 'frame)
(require 'mouse)
(require 'scroll-bar)
(require 'menu-bar)
(require 'fontset)
(require 'dnd)
;; For when building a --without-x configuration, where this is not
;; preloaded.
(eval-when-compile (require 'mwheel))
(add-to-list 'display-format-alist '(".*" . haiku))
;;;; Command line argument handling.
(defvar x-invocation-args)
(defvar x-command-line-resources)
(defvar haiku-initialized)
(defvar haiku-signal-invalid-refs)
(defvar haiku-drag-track-function)
(defvar haiku-allowed-ui-colors)
(defvar haiku-dnd-selection-value nil
"The local value of the special `XdndSelection' selection.")
(defvar haiku-dnd-selection-converters '((STRING . haiku-dnd-convert-string)
(FILE_NAME . haiku-dnd-convert-file-name)
(text/uri-list . haiku-dnd-convert-text-uri-list))
"Alist of X selection types to functions that act as selection converters.
The functions should accept a single argument VALUE, describing
the value of the drag-and-drop selection, and return a list of
two elements TYPE and DATA, where TYPE is a string containing the
MIME type of DATA, and DATA is a unibyte string, or nil if the
data could not be converted.
DATA may also be a list of items; that means to add every
individual item in DATA to the serialized message, instead of
DATA in its entirety.
DATA can optionally have a text property `type', which specifies
the type of DATA inside the system message (see the doc string of
`haiku-drag-message' for more details). If DATA is a list, then
that property is obtained from the first element of DATA.")
(defvar haiku-normal-selection-encoders '(haiku-select-encode-xstring
haiku-select-encode-utf-8-string
haiku-select-encode-file-name)
"List of functions which act as selection encoders.
These functions accept two arguments SELECTION and VALUE, and
return an association appropriate for a serialized system
message (or nil if VALUE is not applicable to the encoder) that
will be put into the system selection SELECTION. VALUE is the
content that is being put into the selection by
`gui-set-selection'. See the doc string of `haiku-drag-message'
for more details on the structure of the associations.")
;; This list has to be set correctly, otherwise Emacs will crash upon
;; encountering an invalid color.
(setq haiku-allowed-ui-colors
["B_PANEL_BACKGROUND_COLOR" "B_MENU_BACKGROUND_COLOR"
"B_WINDOW_TAB_COLOR" "B_KEYBOARD_NAVIGATION_COLOR"
"B_DESKTOP_COLOR" "B_MENU_SELECTED_BACKGROUND_COLOR"
"B_MENU_ITEM_TEXT_COLOR" "B_MENU_SELECTED_ITEM_TEXT_COLOR"
"B_MENU_SELECTED_BORDER_COLOR" "B_PANEL_TEXT_COLOR"
"B_DOCUMENT_BACKGROUND_COLOR" "B_DOCUMENT_TEXT_COLOR"
"B_CONTROL_BACKGROUND_COLOR" "B_CONTROL_TEXT_COLOR"
"B_CONTROL_BORDER_COLOR" "B_CONTROL_HIGHLIGHT_COLOR"
"B_NAVIGATION_PULSE_COLOR" "B_SHINE_COLOR"
"B_SHADOW_COLOR" "B_TOOLTIP_BACKGROUND_COLOR"
"B_TOOLTIP_TEXT_COLOR" "B_WINDOW_TEXT_COLOR"
"B_WINDOW_INACTIVE_TAB_COLOR" "B_WINDOW_INACTIVE_TEXT_COLOR"
"B_WINDOW_BORDER_COLOR" "B_WINDOW_INACTIVE_BORDER_COLOR"
"B_CONTROL_MARK_COLOR" "B_LIST_BACKGROUND_COLOR"
"B_LIST_SELECTED_BACKGROUND_COLOR" "B_LIST_ITEM_TEXT_COLOR"
"B_LIST_SELECTED_ITEM_TEXT_COLOR" "B_SCROLL_BAR_THUMB_COLOR"
"B_LINK_TEXT_COLOR" "B_LINK_HOVER_COLOR"
"B_LINK_VISITED_COLOR" "B_LINK_ACTIVE_COLOR"
"B_STATUS_BAR_COLOR" "B_SUCCESS_COLOR" "B_FAILURE_COLOR"])
(defvar x-colors)
;; Also update `x-colors' to take that into account.
(setq x-colors (append haiku-allowed-ui-colors x-colors))
(defun haiku-selection-bounds (value)
"Return bounds of selection value VALUE.
The return value is a list (BEG END BUF) if VALUE is a cons of
two markers or an overlay. Otherwise, it is nil."
(cond ((bufferp value)
(with-current-buffer value
(when (mark t)
(list (mark t) (point) value))))
((and (consp value)
(markerp (car value))
(markerp (cdr value)))
(when (and (marker-buffer (car value))
(buffer-name (marker-buffer (car value)))
(eq (marker-buffer (car value))
(marker-buffer (cdr value))))
(list (marker-position (car value))
(marker-position (cdr value))
(marker-buffer (car value)))))
((overlayp value)
(when (overlay-buffer value)
(list (overlay-start value)
(overlay-end value)
(overlay-buffer value))))))
(defun haiku-dnd-convert-string (value)
"Convert VALUE to a UTF-8 string and appropriate MIME type.
Return a list of the appropriate MIME type, and UTF-8 data of
VALUE as a unibyte string, or nil if VALUE was not a string."
(unless (stringp value)
(when-let ((bounds (haiku-selection-bounds value)))
(setq value (ignore-errors
(with-current-buffer (nth 2 bounds)
(buffer-substring (nth 0 bounds)
(nth 1 bounds)))))))
(when (stringp value)
(list "text/plain" (string-to-unibyte
(encode-coding-string value 'utf-8)))))
(defun haiku-dnd-convert-file-name (value)
"Convert VALUE to a file system reference if it is a file name."
(cond ((and (stringp value)
(not (file-remote-p value))
(file-exists-p value))
(list "refs" (propertize (expand-file-name value)
'type 'ref)))
((vectorp value)
(list "refs"
(cl-loop for item across value
collect (propertize (expand-file-name item)
'type 'ref))))))
(defun haiku-dnd-convert-text-uri-list (value)
"Convert VALUE to a list of URLs."
(cond
((stringp value) (list "text/uri-list"
(concat (url-encode-url value) "\n")))
((vectorp value) (list "text/uri-list"
(with-temp-buffer
(cl-loop for tem across value
do (progn
(insert (url-encode-url tem))
(insert "\n")))
(buffer-string))))))
(eval-and-compile
(defun haiku-get-numeric-enum (name)
"Return the numeric value of the system enumerator NAME."
(or (get name 'haiku-numeric-enum)
(let ((value 0)
(offset 0)
(string (symbol-name name)))
(cl-loop for octet across string
do (progn
(when (or (< octet 0)
(> octet 255))
(error "Out of range octet: %d" octet))
(setq value
(logior value
(ash octet
(- (* (1- (length string)) 8)
offset))))
(setq offset (+ offset 8))))
(prog1 value
(put name 'haiku-enumerator-id value))))))
(defmacro haiku-numeric-enum (name)
"Expand to the numeric value NAME as a system identifier."
(haiku-get-numeric-enum name))
(declare-function x-open-connection "haikufns.c")
(declare-function x-handle-args "common-win")
(declare-function haiku-selection-data "haikuselect.c")
(declare-function haiku-selection-put "haikuselect.c")
(declare-function haiku-selection-owner-p "haikuselect.c")
(declare-function haiku-put-resource "haikufns.c")
(declare-function haiku-drag-message "haikuselect.c")
(declare-function haiku-selection-timestamp "haikuselect.c")
(defun haiku--handle-x-command-line-resources (command-line-resources)
"Handle command line X resources specified with the option `-xrm'.
The resources should be a list of strings in COMMAND-LINE-RESOURCES."
(dolist (s command-line-resources)
(let ((components (split-string s ":")))
(when (car components)
(haiku-put-resource (car components)
(string-trim-left
(mapconcat #'identity (cdr components) ":")))))))
(cl-defmethod window-system-initialization (&context (window-system haiku)
&optional display)
"Set up the window system. WINDOW-SYSTEM must be HAIKU.
DISPLAY may be set to the name of a display that will be initialized."
(cl-assert (not haiku-initialized))
(create-default-fontset)
(when x-command-line-resources
(haiku--handle-x-command-line-resources
(split-string x-command-line-resources "\n")))
(x-open-connection (or display "be") x-command-line-resources t)
(setq haiku-initialized t))
(cl-defmethod frame-creation-function (params &context (window-system haiku))
(x-create-frame-with-faces params))
(cl-defmethod handle-args-function (args &context (window-system haiku))
(x-handle-args args))
(defun haiku--selection-type-to-mime (type)
"Convert symbolic selection type TYPE to its MIME equivalent.
If TYPE is nil, return \"text/plain\"."
(cond
((eq type 'STRING) "text/plain;charset=iso-8859-1")
((eq type 'UTF8_STRING) "text/plain")
((stringp type) type)
((symbolp type) (symbol-name type))
(t "text/plain")))
(defun haiku-selection-targets (clipboard)
"Find the types of data available from CLIPBOARD.
CLIPBOARD should be the symbol `PRIMARY', `SECONDARY' or
`CLIPBOARD'. Return the available types as a list of strings."
(delq 'type (mapcar #'car (haiku-selection-data clipboard nil))))
(defun haiku-select-encode-xstring (_selection value)
"Convert VALUE to a system message association.
VALUE will be encoded as Latin-1 (like on X Windows) and stored
under the type `text/plain;charset=iso-8859-1'."
(unless (stringp value)
(when-let ((bounds (haiku-selection-bounds value)))
(setq value (ignore-errors
(with-current-buffer (nth 2 bounds)
(buffer-substring (nth 0 bounds)
(nth 1 bounds)))))))
(when (and (stringp value) (not (string-empty-p value)))
(list "text/plain;charset=iso-8859-1" (haiku-numeric-enum MIME)
(encode-coding-string value 'iso-latin-1))))
(defun haiku-select-encode-utf-8-string (_selection value)
"Convert VALUE to a system message association.
VALUE will be encoded as UTF-8 and stored under the type
`text/plain'."
(unless (stringp value)
(when-let ((bounds (haiku-selection-bounds value)))
(setq value (ignore-errors
(with-current-buffer (nth 2 bounds)
(buffer-substring (nth 0 bounds)
(nth 1 bounds)))))))
(when (and (stringp value) (not (string-empty-p value)))
(list "text/plain" (haiku-numeric-enum MIME)
(encode-coding-string value 'utf-8-unix))))
(defun haiku-select-encode-file-name (_selection value)
"Convert VALUE to a system message association.
This takes the file name of VALUE's buffer (if it is an overlay
or a pair of markers) and turns it into a file system reference."
(when (setq value (xselect--selection-bounds value))
(list "refs" 'ref (buffer-file-name (nth 2 value)))))
(cl-defmethod gui-backend-get-selection (type data-type
&context (window-system haiku))
(cond
((eq data-type 'TARGETS)
(apply #'vector (mapcar #'intern
(haiku-selection-targets type))))
;; The timestamp here is really the number of times a program has
;; put data into the selection. But it always increases, so it
;; makes sense if one imagines that time is frozen until
;; immediately before that happens.
((eq data-type 'TIMESTAMP)
(haiku-selection-timestamp type))
((eq type 'XdndSelection) haiku-dnd-selection-value)
(t (haiku-selection-data type
(haiku--selection-type-to-mime data-type)))))
(cl-defmethod gui-backend-set-selection (type value
&context (window-system haiku))
(if (eq type 'XdndSelection)
(setq haiku-dnd-selection-value value)
(let ((message nil))
(dolist (encoder haiku-normal-selection-encoders)
(let ((result (funcall encoder type value)))
(when result
(push result message))))
(haiku-selection-put type message))))
(cl-defmethod gui-backend-selection-exists-p (selection
&context (window-system haiku))
(haiku-selection-data selection "text/plain"))
(cl-defmethod gui-backend-selection-owner-p (selection &context (window-system haiku))
(haiku-selection-owner-p selection))
(declare-function haiku-read-file-name "haikufns.c")
(defun x-file-dialog (prompt dir &optional default-filename mustmatch only-dir-p)
"SKIP: real doc in xfns.c."
(if (eq (framep-on-display (selected-frame)) 'haiku)
(haiku-read-file-name (if (not (string-suffix-p ": " prompt))
prompt
(substring prompt 0 (- (length prompt) 2)))
(selected-frame)
(or dir (and default-filename
(file-name-directory default-filename)))
mustmatch only-dir-p
(and default-filename
(file-name-nondirectory default-filename)))
(error "x-file-dialog on a tty frame")))
(defun haiku-parse-drag-actions (message)
"Given the drag-and-drop message MESSAGE, retrieve the desired action."
(let ((actions (cddr (assoc "be:actions" message)))
(sorted nil))
(dolist (action (list (haiku-numeric-enum DDCP)
(haiku-numeric-enum DDMV)
(haiku-numeric-enum DDLN)))
(when (member action actions)
(push sorted action)))
(cond
((eql (car sorted) (haiku-numeric-enum DDCP)) 'copy)
((eql (car sorted) (haiku-numeric-enum DDMV)) 'move)
((eql (car sorted) (haiku-numeric-enum DDLN)) 'link)
(t 'private))))
(defun haiku-drag-and-drop (event)
"Handle specified drag-n-drop EVENT."
(interactive "e")
(let* ((string (caddr event))
(window (posn-window (event-start event))))
(if (eq string 'lambda) ; This means the mouse moved.
(dnd-handle-movement (event-start event))
(let ((action (haiku-parse-drag-actions string)))
(cond
;; Don't allow dropping on something other than the text area.
;; It does nothing and doesn't work with text anyway.
((posn-area (event-start event)))
((assoc "refs" string)
(with-selected-window window
(dnd-handle-multiple-urls
window (mapcar
(lambda (name) (concat "file:" name))
(cddr (assoc "refs" string)))
action)))
((assoc "text/uri-list" string)
(dolist (text (cddr (assoc "text/uri-list" string)))
(let ((uri-list (split-string text "[\0\r\n]" t)))
(dnd-handle-multiple-urls window uri-list action))))
((assoc "text/plain" string)
(with-selected-window window
(dolist (text (cddr (assoc "text/plain" string)))
(unless mouse-yank-at-point
(goto-char (posn-point (event-start event))))
(dnd-insert-text window action
(if (multibyte-string-p text)
text
(decode-coding-string text 'undecided))))))
((not (eq (cdr (assq 'type string))
3003)) ; Type of the placeholder message Emacs uses
; to cancel a drop on C-g.
(message "Don't know how to drop any of: %s"
(mapcar #'car string))))))))
(define-key special-event-map [drag-n-drop] 'haiku-drag-and-drop)
(defvaralias 'haiku-use-system-tooltips 'use-system-tooltips)
(defun haiku-use-system-tooltips-watcher (&rest _ignored)
"Variable watcher to force a menu bar update when `use-system-tooltip' changes.
This is necessary because on Haiku `use-system-tooltip' doesn't
take effect on menu items until the menu bar is updated again."
(force-mode-line-update t))
;; Note that `mouse-position' can't return the actual frame the mouse
;; pointer is under, so this only works for the frame where the drop
;; started.
(defun haiku-dnd-drag-handler ()
"Handle mouse movement during drag-and-drop."
(let ((track-mouse 'drag-source)
(mouse-position (mouse-pixel-position)))
(when (car mouse-position)
(dnd-handle-movement (posn-at-x-y (cadr mouse-position)
(cddr mouse-position)
(car mouse-position))))))
(setq haiku-drag-track-function #'haiku-dnd-drag-handler)
(defun x-begin-drag (targets &optional action frame _return-frame
allow-current-frame follow-tooltip)
"SKIP: real doc in xfns.c."
(unless haiku-dnd-selection-value
(error "No local value for XdndSelection"))
(let ((message nil)
(mouse-highlight nil)
(haiku-signal-invalid-refs nil))
(dolist (target targets)
(let* ((target-atom (intern target))
(selection-converter (cdr (assoc target-atom
haiku-dnd-selection-converters)))
(value (if (stringp haiku-dnd-selection-value)
(or (get-text-property 0 target-atom
haiku-dnd-selection-value)
haiku-dnd-selection-value)
haiku-dnd-selection-value)))
(when selection-converter
(let ((selection-result (funcall selection-converter value)))
(when selection-result
(let* ((field (cdr (assoc (car selection-result) message)))
(maybe-string (if (stringp (cadr selection-result))
(cadr selection-result)
(caadr selection-result))))
(unless (cadr field)
;; Add B_MIME_TYPE to the message if the type was not
;; previously specified, or the type if it was.
(push (or (get-text-property 0 'type maybe-string)
(haiku-numeric-enum MIME))
(alist-get (car selection-result) message
nil nil #'equal))))
(if (not (consp (cadr selection-result)))
(push (cadr selection-result)
(cdr (alist-get (car selection-result) message
nil nil #'equal)))
(dolist (tem (cadr selection-result))
(push tem
(cdr (alist-get (car selection-result) message
nil nil #'equal))))))))))
(prog1 (or (and (symbolp action)
action)
'XdndActionCopy)
(haiku-drag-message (or frame (selected-frame))
message allow-current-frame
follow-tooltip))))
(add-variable-watcher 'use-system-tooltips
#'haiku-use-system-tooltips-watcher)
(defvar haiku-dnd-wheel-count nil
"Cons used to determine how many times the wheel has been turned.
The car is just that; cdr is the timestamp of the last wheel
movement.")
(defvar haiku-last-wheel-direction nil
"Cons of two elements describing the direction the wheel last turned.
The car is whether or not the movement was horizontal.
The cdr is whether or not the movement was upwards or leftwards.")
(defun haiku-note-wheel-click (timestamp)
"Note that the mouse wheel was moved at TIMESTAMP during drag-and-drop.
Return the number of clicks that were made in quick succession."
(if (not (integerp double-click-time))
1
(let ((cell haiku-dnd-wheel-count))
(unless cell
(setq cell (cons 0 timestamp))
(setq haiku-dnd-wheel-count cell))
(when (< (cdr cell) (- timestamp double-click-time))
(setcar cell 0))
(setcar cell (1+ (car cell)))
(setcdr cell timestamp)
(car cell))))
(defvar haiku-drag-wheel-function)
(defun haiku-dnd-modifier-mask (mods)
"Return the internal modifier mask for the Emacs modifier state MODS.
MODS is a single symbol, or a list of symbols such as `shift' or
`control'."
(let ((mask 0))
(unless (consp mods)
(setq mods (list mods)))
(dolist (modifier mods)
(cond ((eq modifier 'shift)
(setq mask (logior mask ?\S-\0)))
((eq modifier 'control)
(setq mask (logior mask ?\C-\0)))
((eq modifier 'meta)
(setq mask (logior mask ?\M-\0)))
((eq modifier 'hyper)
(setq mask (logior mask ?\H-\0)))
((eq modifier 'super)
(setq mask (logior mask ?\s-\0)))
((eq modifier 'alt)
(setq mask (logior mask ?\A-\0)))))
mask))
(defun haiku-dnd-wheel-modifier-type (flags)
"Return the modifier type of an internal modifier mask.
FLAGS is the internal modifier mask of a turn of the mouse wheel."
(let ((modifiers (logior ?\M-\0 ?\C-\0 ?\S-\0
?\H-\0 ?\s-\0 ?\A-\0)))
(catch 'type
(dolist (modifier mouse-wheel-scroll-amount)
(when (and (consp modifier)
(eq (haiku-dnd-modifier-mask (car modifier))
(logand flags modifiers)))
(throw 'type (cdr modifier))))
nil)))
(defun haiku-handle-drag-wheel (frame x y horizontal up modifiers)
"Handle wheel movement during drag-and-drop.
FRAME is the frame on top of which the wheel moved.
X and Y are the frame-relative coordinates of the wheel movement.
HORIZONTAL is whether or not the wheel movement was horizontal.
UP is whether or not the wheel moved up (or left).
MODIFIERS is the internal modifier mask of the wheel movement."
(when (not (equal haiku-last-wheel-direction
(cons horizontal up)))
(setq haiku-last-wheel-direction
(cons horizontal up))
(when (consp haiku-dnd-wheel-count)
(setcar haiku-dnd-wheel-count 0)))
(let ((type (haiku-dnd-wheel-modifier-type modifiers))
(function (cond
((and (not horizontal) (not up))
mwheel-scroll-up-function)
((not horizontal)
mwheel-scroll-down-function)
((not up) (if mouse-wheel-flip-direction
mwheel-scroll-right-function
mwheel-scroll-left-function))
(t (if mouse-wheel-flip-direction
mwheel-scroll-left-function
mwheel-scroll-right-function))))
(timestamp (time-convert nil 1000))
(amt 1))
(cond ((and (eq type 'hscroll)
(not horizontal))
(setq function (if (not up)
mwheel-scroll-left-function
mwheel-scroll-right-function)))
((and (eq type 'global-text-scale))
(setq function 'global-text-scale-adjust
amt (if up 1 -1)))
((and (eq type 'text-scale))
(setq function 'text-scale-adjust
amt (if up 1 -1))))
(when function
(let ((posn (posn-at-x-y x y frame)))
(when (windowp (posn-window posn))
(with-selected-window (posn-window posn)
(funcall function
(* amt
(or (and (not mouse-wheel-progressive-speed) 1)
(haiku-note-wheel-click (car timestamp)))))))))))
(setq haiku-drag-wheel-function #'haiku-handle-drag-wheel)
;;;; Session management.
(declare-function haiku-save-session-reply "haikufns.c")
(defun emacs-session-save ()
"SKIP: real doc in x-win.el."
(with-temp-buffer ; Saving sessions is not yet supported.
(condition-case nil
;; A return of t means cancel the shutdown.
(run-hook-with-args-until-success
'emacs-save-session-functions)
(error t))))
(defun handle-save-session (_event)
"SKIP: real doc in xsmfns.c."
(interactive "e")
(let ((cancel-shutdown t))
(unwind-protect
(setq cancel-shutdown (emacs-session-save))
(haiku-save-session-reply (not cancel-shutdown)))
;; The App Server will kill Emacs after receiving the reply, but
;; the Deskbar will not, so kill ourself here.
(unless cancel-shutdown (kill-emacs))))
;;;; Wallpaper support.
(declare-function haiku-write-node-attribute "haikuselect.c")
(declare-function haiku-send-message "haikuselect.c")
(defun haiku-set-wallpaper (file)
"Make FILE the wallpaper.
Set the desktop background to the image FILE, on all workspaces,
with an offset of 0, 0."
(let ((encoded-file (encode-coding-string
(expand-file-name file)
(or file-name-coding-system
default-file-name-coding-system))))
;; Write the necessary information to the desktop directory.
(haiku-write-node-attribute "/boot/home/Desktop"
"be:bgndimginfo"
(list '(type . 0)
'("be:bgndimginfoerasetext" bool t)
(list "be:bgndimginfopath" 'string
encoded-file)
'("be:bgndimginfoworkspaces" long
;; This is a mask of all the
;; workspaces the background
;; image will be applied to. It
;; is treated as an unsigned
;; value by the Tracker, despite
;; the type being signed.
-1)
;; Don't apply an offset
'("be:bgndimginfooffset" point (0 . 0))
;; Don't stretch or crop or anything
'("be:bgndimginfomode" long 0)
;; Don't apply a set
'("be:bgndimginfoset" long 0)))
;; Tell the tracker to redisplay the wallpaper.
(haiku-send-message "application/x-vnd.Be-TRAK"
(list (cons 'type (haiku-numeric-enum Tbgr))))))
;;;; Cursors.
;; We use the same interface as X, but the cursor numbers are
;; different, and there are also less cursors.
(defconst x-pointer-X-cursor 5) ; B_CURSOR_ID_CROSS_HAIR
(defconst x-pointer-arrow 1) ; B_CURSOR_ID_SYSTEM_DEFAULT
(defconst x-pointer-bottom-left-corner 22) ; B_CURSOR_ID_RESIZE_SOUTH_WEST
(defconst x-pointer-bottom-right-corner 21) ; B_CURSOR_ID_RESIZE_SOUTH_EAST
(defconst x-pointer-bottom-side 17) ; B_CURSOR_ID_RESIZE_SOUTH
(defconst x-pointer-clock 14) ; B_CURSOR_ID_PROGRESS
(defconst x-pointer-cross 5) ; B_CURSOR_ID_CROSS_HAIR
(defconst x-pointer-cross-reverse 5) ; B_CURSOR_ID_CROSS_HAIR
(defconst x-pointer-crosshair 5) ; B_CURSOR_ID_CROSS_HAIR
(defconst x-pointer-diamond-cross 5) ; B_CURSOR_ID_CROSS_HAIR
(defconst x-pointer-hand1 7) ; B_CURSOR_ID_GRAB
(defconst x-pointer-hand2 8) ; B_CURSOR_ID_GRABBING
(defconst x-pointer-left-side 18) ; B_CURSOR_ID_RESIZE_WEST
(defconst x-pointer-right-side 16) ; B_CURSOR_ID_RESIZE_EAST
(defconst x-pointer-sb-down-arrow 17) ; B_CURSOR_ID_RESIZE_SOUTH
(defconst x-pointer-sb-left-arrow 18) ; B_CURSOR_ID_RESIZE_WEST
(defconst x-pointer-sb-right-arrow 16) ; B_CURSOR_ID_RESIZE_EAST
(defconst x-pointer-sb-up-arrow 16) ; B_CURSOR_ID_RESIZE_NORTH
(defconst x-pointer-target 5) ; B_CURSOR_ID_CROSS_HAIR
(defconst x-pointer-top-left-corner 20) ; B_CURSOR_ID_RESIZE_NORTH_WEST
(defconst x-pointer-top-right-corner 19) ; B_CURSOR_ID_RESIZE_NORTH_EAST
(defconst x-pointer-top-side 16) ; B_CURSOR_ID_RESIZE_NORTH
(defconst x-pointer-watch 14) ; B_CURSOR_ID_PROGRESS
(defconst x-pointer-invisible 12) ; B_CURSOR_ID_NO_CURSOR
(provide 'haiku-win)
(provide 'term/haiku-win)
;;; haiku-win.el ends here
|
