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- Committer: RabbitBot
- Date: 2016-11-16 09:38:52 UTC
- Revision ID: rabbitbot@elementary.io-20161116093852-xn6hcgpg5y25xooo
Initial import, version 2.18.3-4ubuntu1
- files added:
- atspi
- bus
- config
- dbind
- debian
- debian/patches
- debian/source
- doc
- doc/libatspi
- doc/libatspi/html
- m4
- po
- registryd
- test
- xml
added
removed
registryd/deviceeventcontroller-x11.c
1
/* AT-SPI - Assistive Technology Service Provider Interface
2
*
3
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
4
*
5
* Copyright 2001, 2003 Sun Microsystems Inc.,
6
* Copyright 2001, 2002 Ximian, Inc.
7
*
8
* This library is free software; you can redistribute it and/or
9
* modify it under the terms of the GNU Library General Public
10
* License as published by the Free Software Foundation; either
11
* version 2 of the License, or (at your option) any later version.
12
*
13
* This library is distributed in the hope that it will be useful,
14
* but WITHOUT ANY WARRANTY; without even the implied warranty of
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16
* Library General Public License for more details.
17
*
18
* You should have received a copy of the GNU Library General Public
19
* License along with this library; if not, write to the
20
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21
* Boston, MA 02111-1307, USA.
22
*/
23
24
/* deviceeventcontroller-x11.c: X-specific DeviceEventController support */
25
26
#include <config.h>
27
28
#undef SPI_XKB_DEBUG
29
#undef SPI_DEBUG
30
#undef SPI_KEYEVENT_DEBUG
31
32
#include <string.h>
33
#include <ctype.h>
34
#include <stdio.h>
35
#include <sys/time.h>
36
37
#include <X11/Xlib.h>
38
#include <X11/Xutil.h>
39
#include <X11/extensions/XTest.h>
40
#include <X11/XKBlib.h>
41
42
#define XK_MISCELLANY
43
#define XK_LATIN1
44
#include <X11/keysymdef.h>
45
46
#ifdef HAVE_XEVIE
47
#include <X11/Xproto.h>
48
#include <X11/X.h>
49
#include <X11/extensions/Xevie.h>
50
#endif /* HAVE_XEVIE */
51
52
#include <glib.h>
53
54
#include <dbus/dbus.h>
55
56
#include "paths.h"
57
#include "keymasks.h"
58
#include "de-types.h"
59
#include "de-marshaller.h"
60
#include "display.h"
61
#include "event-source.h"
62
63
#include "deviceeventcontroller.h"
64
#include "reentrant-list.h"
65
66
#include "introspection.h"
67
68
static void spi_dec_x11_emit_modifier_event (SpiDEController *controller,
69
guint prev_mask,
70
guint current_mask);
71
72
#define CHECK_RELEASE_DELAY 20
73
#define BIT(c, x) (c[x/8]&(1<<(x%8)))
74
static guint check_release_handler = 0;
75
static Accessibility_DeviceEvent pressed_event;
76
static void wait_for_release_event (XEvent *event, SpiDEController *controller);
77
78
static int spi_error_code = 0;
79
struct _SpiPoint {
80
gint x;
81
gint y;
82
};
83
typedef struct _SpiPoint SpiPoint;
84
static SpiPoint last_mouse_pos_static = {0, 0};
85
static SpiPoint *last_mouse_pos = &last_mouse_pos_static;
86
static unsigned int mouse_mask_state = 0;
87
static unsigned int mouse_button_mask =
88
Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask;
89
static unsigned int key_modifier_mask =
90
Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
91
static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
92
93
static XModifierKeymap* xmkeymap = NULL;
94
95
96
static int (*x_default_error_handler) (Display *display, XErrorEvent *error_event);
97
98
typedef struct {
99
Display *xevie_display;
100
unsigned int last_press_keycode;
101
unsigned int last_release_keycode;
102
struct timeval last_press_time;
103
struct timeval last_release_time;
104
int have_xkb;
105
int xkb_major_extension_opcode;
106
int xkb_base_event_code;
107
int xkb_base_error_code;
108
unsigned int xkb_latch_mask;
109
unsigned int pending_xkb_mod_relatch_mask;
110
XkbDescPtr xkb_desc;
111
KeyCode reserved_keycode;
112
KeySym reserved_keysym;
113
guint reserved_reset_timeout;
114
} DEControllerPrivateData;
115
116
static void spi_controller_register_with_devices (SpiDEController *controller);
117
static gboolean spi_device_event_controller_forward_key_event (SpiDEController *controller,
118
const XEvent *event);
119
120
121
static SpiDEController *saved_controller;
122
123
static unsigned int
124
keysym_mod_mask (KeySym keysym, KeyCode keycode)
125
{
126
/* we really should use XKB and look directly at the keymap */
127
/* this is very inelegant */
128
Display *display = spi_get_display ();
129
unsigned int mods_rtn = 0;
130
unsigned int retval = 0;
131
KeySym sym_rtn;
132
133
if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
134
(sym_rtn == keysym)) {
135
retval = 0;
136
}
137
else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
138
(sym_rtn == keysym)) {
139
retval = ShiftMask;
140
}
141
else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
142
(sym_rtn == keysym)) {
143
retval = Mod2Mask;
144
}
145
else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
146
(sym_rtn == keysym)) {
147
retval = Mod3Mask;
148
}
149
else if (XkbLookupKeySym (display, keycode,
150
ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
151
(sym_rtn == keysym)) {
152
retval = (Mod2Mask | ShiftMask);
153
}
154
else if (XkbLookupKeySym (display, keycode,
155
ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
156
(sym_rtn == keysym)) {
157
retval = (Mod3Mask | ShiftMask);
158
}
159
else if (XkbLookupKeySym (display, keycode,
160
ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
161
(sym_rtn == keysym)) {
162
retval = (Mod4Mask | ShiftMask);
163
}
164
else
165
retval = 0xFFFF;
166
return retval;
167
}
168
169
static gboolean
170
replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
171
{
172
#ifdef HAVE_XKB
173
Display *dpy = spi_get_display ();
174
XkbDescPtr desc;
175
if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
176
{
177
fprintf (stderr, "ERROR getting map\n");
178
}
179
XFlush (dpy);
180
XSync (dpy, False);
181
if (desc && desc->map)
182
{
183
gint offset = desc->map->key_sym_map[keycode].offset;
184
desc->map->syms[offset] = keysym;
185
}
186
else
187
{
188
fprintf (stderr, "Error changing key map: empty server structure\n");
189
}
190
XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
191
/**
192
* FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
193
* would be far preferable.
194
* HOWEVER it does not seem to work using XFree 4.3.
195
**/
196
/* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
197
XFlush (dpy);
198
XSync (dpy, False);
199
XkbFreeKeyboard (desc, 0, TRUE);
200
201
return TRUE;
202
#else
203
return FALSE;
204
#endif
205
}
206
207
static gboolean
208
spi_dec_reset_reserved (gpointer data)
209
{
210
DEControllerPrivateData *priv = data;
211
replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
212
priv->reserved_reset_timeout = 0;
213
return FALSE;
214
}
215
216
static gint
217
spi_dec_x11_get_keycode (SpiDEController *controller,
218
gint keysym,
219
gchar *key_str,
220
gboolean fix,
221
guint *modmask)
222
{
223
KeyCode keycode = 0;
224
if (key_str && key_str[0])
225
keysym = XStringToKeysym(key_str);
226
keycode = XKeysymToKeycode (spi_get_display (), (KeySym) keysym);
227
if (!keycode && fix)
228
{
229
DEControllerPrivateData *priv = controller->priv;
230
/* if there's no keycode available, fix it */
231
if (replace_map_keysym (priv, priv->reserved_keycode, keysym))
232
{
233
keycode = priv->reserved_keycode;
234
/*
235
* queue a timer to restore the old keycode. Ugly, but required
236
* due to races / asynchronous X delivery.
237
* Long-term fix is to extend the X keymap here instead of replace entries.
238
*/
239
priv->reserved_reset_timeout = g_timeout_add (500, spi_dec_reset_reserved, priv);
240
g_source_set_name_by_id (priv->reserved_reset_timeout, "[at-spi2-core] spi_dec_reset_reserved");
241
}
242
if (modmask)
243
*modmask = 0;
244
return keycode;
245
}
246
if (modmask)
247
*modmask = keysym_mod_mask (keysym, keycode);
248
return keycode;
249
}
250
251
static void
252
spi_dec_set_unlatch_pending (SpiDEController *controller, unsigned mask)
253
{
254
DEControllerPrivateData *priv = controller->priv;
255
#ifdef SPI_XKB_DEBUG
256
if (priv->xkb_latch_mask) fprintf (stderr, "unlatch pending! %x\n",
257
priv->xkb_latch_mask);
258
#endif
259
priv->pending_xkb_mod_relatch_mask |= priv->xkb_latch_mask;
260
}
261
262
static gboolean
263
spi_dec_button_update_and_emit (SpiDEController *controller,
264
guint mask_return)
265
{
266
Accessibility_DeviceEvent mouse_e;
267
gchar event_detail[3];
268
gboolean is_consumed = FALSE;
269
270
if ((mask_return & mouse_button_mask) !=
271
(mouse_mask_state & mouse_button_mask))
272
{
273
int button_number = 0;
274
gboolean is_down = False;
275
276
if (!(mask_return & Button1Mask) &&
277
(mouse_mask_state & Button1Mask))
278
{
279
mouse_mask_state &= ~Button1Mask;
280
button_number = 1;
281
}
282
else if ((mask_return & Button1Mask) &&
283
!(mouse_mask_state & Button1Mask))
284
{
285
mouse_mask_state |= Button1Mask;
286
button_number = 1;
287
is_down = True;
288
}
289
else if (!(mask_return & Button2Mask) &&
290
(mouse_mask_state & Button2Mask))
291
{
292
mouse_mask_state &= ~Button2Mask;
293
button_number = 2;
294
}
295
else if ((mask_return & Button2Mask) &&
296
!(mouse_mask_state & Button2Mask))
297
{
298
mouse_mask_state |= Button2Mask;
299
button_number = 2;
300
is_down = True;
301
}
302
else if (!(mask_return & Button3Mask) &&
303
(mouse_mask_state & Button3Mask))
304
{
305
mouse_mask_state &= ~Button3Mask;
306
button_number = 3;
307
}
308
else if ((mask_return & Button3Mask) &&
309
!(mouse_mask_state & Button3Mask))
310
{
311
mouse_mask_state |= Button3Mask;
312
button_number = 3;
313
is_down = True;
314
}
315
else if (!(mask_return & Button4Mask) &&
316
(mouse_mask_state & Button4Mask))
317
{
318
mouse_mask_state &= ~Button4Mask;
319
button_number = 4;
320
}
321
else if ((mask_return & Button4Mask) &&
322
!(mouse_mask_state & Button4Mask))
323
{
324
mouse_mask_state |= Button4Mask;
325
button_number = 4;
326
is_down = True;
327
}
328
else if (!(mask_return & Button5Mask) &&
329
(mouse_mask_state & Button5Mask))
330
{
331
mouse_mask_state &= ~Button5Mask;
332
button_number = 5;
333
}
334
else if ((mask_return & Button5Mask) &&
335
!(mouse_mask_state & Button5Mask))
336
{
337
mouse_mask_state |= Button5Mask;
338
button_number = 5;
339
is_down = True;
340
}
341
if (button_number) {
342
#ifdef SPI_DEBUG
343
fprintf (stderr, "Button %d %s\n",
344
button_number, (is_down) ? "Pressed" : "Released");
345
#endif
346
snprintf (event_detail, 3, "%d%c", button_number,
347
(is_down) ? 'p' : 'r');
348
/* TODO: FIXME distinguish between physical and
349
* logical buttons
350
*/
351
mouse_e.type = (is_down) ?
352
Accessibility_BUTTON_PRESSED_EVENT :
353
Accessibility_BUTTON_RELEASED_EVENT;
354
mouse_e.id = button_number;
355
mouse_e.hw_code = button_number;
356
mouse_e.modifiers = (dbus_uint16_t) mouse_mask_state;
357
mouse_e.timestamp = 0;
358
mouse_e.event_string = "";
359
mouse_e.is_text = FALSE;
360
is_consumed =
361
spi_controller_notify_mouselisteners (controller,
362
&mouse_e);
363
if (!is_consumed)
364
{
365
dbus_uint32_t x = last_mouse_pos->x, y = last_mouse_pos->y;
366
spi_dec_dbus_emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, x, y);
367
}
368
else
369
spi_dec_set_unlatch_pending (controller, mask_return);
370
}
371
return TRUE;
372
}
373
else
374
{
375
return FALSE;
376
}
377
}
378
379
static guint
380
spi_dec_x11_mouse_check (SpiDEController *controller,
381
int *x, int *y, gboolean *moved)
382
{
383
int win_x_return,win_y_return;
384
unsigned int mask_return;
385
Window root_return, child_return;
386
Display *display = spi_get_display ();
387
388
if (display != NULL)
389
XQueryPointer(display, DefaultRootWindow (display),
390
&root_return, &child_return,
391
x, y,
392
&win_x_return, &win_y_return, &mask_return);
393
/*
394
* Since many clients grab the pointer, and X goes an automatic
395
* pointer grab on mouse-down, we often must detect mouse button events
396
* by polling rather than via a button grab.
397
* The while loop (rather than if) is used since it's possible that
398
* multiple buttons have changed state since we last checked.
399
*/
400
if (mask_return != mouse_mask_state)
401
{
402
while (spi_dec_button_update_and_emit (controller, mask_return));
403
}
404
405
if (*x != last_mouse_pos->x || *y != last_mouse_pos->y)
406
{
407
// TODO: combine these two signals?
408
dbus_uint32_t ix = *x, iy = *y;
409
spi_dec_dbus_emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Abs", "", ix, iy);
410
ix -= last_mouse_pos->x;
411
iy -= last_mouse_pos->y;
412
spi_dec_dbus_emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Rel", "", ix, iy);
413
last_mouse_pos->x = *x;
414
last_mouse_pos->y = *y;
415
*moved = True;
416
}
417
else
418
{
419
*moved = False;
420
}
421
422
return mask_return;
423
}
424
425
#ifdef WE_NEED_UGRAB_MOUSE
426
static int
427
spi_dec_ungrab_mouse (gpointer data)
428
{
429
Display *display = spi_get_display ();
430
if (display)
431
{
432
XUngrabButton (spi_get_display (), AnyButton, AnyModifier,
433
XDefaultRootWindow (spi_get_display ()));
434
}
435
return FALSE;
436
}
437
#endif
438
439
static void
440
spi_dec_init_mouse_listener (SpiDEController *dec)
441
{
442
#ifdef GRAB_BUTTON
443
Display *display = spi_get_display ();
444
445
if (display)
446
{
447
if (XGrabButton (display, AnyButton, AnyModifier,
448
spi_get_root_window (),
449
True, ButtonPressMask | ButtonReleaseMask,
450
GrabModeSync, GrabModeAsync, None, None) != Success) {
451
#ifdef SPI_DEBUG
452
fprintf (stderr, "WARNING: could not grab mouse buttons!\n");
453
#endif
454
;
455
}
456
XSync (display, False);
457
#ifdef SPI_DEBUG
458
fprintf (stderr, "mouse buttons grabbed\n");
459
#endif
460
}
461
#endif
462
}
463
464
static void
465
spi_dec_clear_unlatch_pending (SpiDEController *controller)
466
{
467
DEControllerPrivateData *priv = controller->priv;
468
priv->xkb_latch_mask = 0;
469
}
470
471
static void
472
spi_device_event_controller_forward_mouse_event (SpiDEController *controller,
473
XEvent *xevent)
474
{
475
Accessibility_DeviceEvent mouse_e;
476
gchar event_detail[3];
477
gboolean is_consumed = FALSE;
478
gboolean xkb_mod_unlatch_occurred;
479
XButtonEvent *xbutton_event = (XButtonEvent *) xevent;
480
dbus_uint32_t ix, iy;
481
482
int button = xbutton_event->button;
483
484
unsigned int mouse_button_state = xbutton_event->state;
485
486
switch (button)
487
{
488
case 1:
489
mouse_button_state |= Button1Mask;
490
break;
491
case 2:
492
mouse_button_state |= Button2Mask;
493
break;
494
case 3:
495
mouse_button_state |= Button3Mask;
496
break;
497
case 4:
498
mouse_button_state |= Button4Mask;
499
break;
500
case 5:
501
mouse_button_state |= Button5Mask;
502
break;
503
}
504
505
last_mouse_pos->x = ((XButtonEvent *) xevent)->x_root;
506
last_mouse_pos->y = ((XButtonEvent *) xevent)->y_root;
507
508
#ifdef SPI_DEBUG
509
fprintf (stderr, "mouse button %d %s (%x)\n",
510
xbutton_event->button,
511
(xevent->type == ButtonPress) ? "Press" : "Release",
512
mouse_button_state);
513
#endif
514
snprintf (event_detail, 3, "%d%c", button,
515
(xevent->type == ButtonPress) ? 'p' : 'r');
516
517
/* TODO: FIXME distinguish between physical and logical buttons */
518
mouse_e.type = (xevent->type == ButtonPress) ?
519
Accessibility_BUTTON_PRESSED_EVENT :
520
Accessibility_BUTTON_RELEASED_EVENT;
521
mouse_e.id = button;
522
mouse_e.hw_code = button;
523
mouse_e.modifiers = (dbus_uint16_t) xbutton_event->state;
524
mouse_e.timestamp = (dbus_uint32_t) xbutton_event->time;
525
mouse_e.event_string = "";
526
mouse_e.is_text = FALSE;
527
if ((mouse_button_state & mouse_button_mask) !=
528
(mouse_mask_state & mouse_button_mask))
529
{
530
if ((mouse_mask_state & key_modifier_mask) !=
531
(mouse_button_state & key_modifier_mask))
532
spi_dec_x11_emit_modifier_event (controller,
533
mouse_mask_state, mouse_button_state);
534
mouse_mask_state = mouse_button_state;
535
is_consumed =
536
spi_controller_notify_mouselisteners (controller, &mouse_e);
537
ix = last_mouse_pos->x;
538
iy = last_mouse_pos->y;
539
spi_dec_dbus_emit(controller, SPI_DBUS_INTERFACE_EVENT_MOUSE, "Button", event_detail, ix, iy);
540
}
541
542
xkb_mod_unlatch_occurred = (xevent->type == ButtonPress ||
543
xevent->type == ButtonRelease);
544
545
/* if client wants to consume this event, and XKB latch state was
546
* unset by this button event, we reset it
547
*/
548
if (is_consumed && xkb_mod_unlatch_occurred)
549
spi_dec_set_unlatch_pending (controller, mouse_mask_state);
550
551
XAllowEvents (spi_get_display (),
552
(is_consumed) ? SyncPointer : ReplayPointer,
553
CurrentTime);
554
}
555
556
static void
557
global_filter_fn (XEvent *xevent, void *data)
558
{
559
SpiDEController *controller;
560
DEControllerPrivateData *priv;
561
Display *display = spi_get_display ();
562
controller = SPI_DEVICE_EVENT_CONTROLLER (data);
563
priv = controller->priv;
564
565
if (xevent->type == MappingNotify)
566
xmkeymap = NULL;
567
568
if (xevent->type == KeyPress || xevent->type == KeyRelease)
569
{
570
if (priv->xevie_display == NULL)
571
{
572
gboolean is_consumed;
573
574
is_consumed =
575
spi_device_event_controller_forward_key_event (controller, xevent);
576
577
if (is_consumed)
578
{
579
int n_events;
580
int i;
581
XEvent next_event;
582
n_events = XPending (display);
583
584
#ifdef SPI_KEYEVENT_DEBUG
585
g_print ("Number of events pending: %d\n", n_events);
586
#endif
587
for (i = 0; i < n_events; i++)
588
{
589
XNextEvent (display, &next_event);
590
if (next_event.type != KeyPress &&
591
next_event.type != KeyRelease)
592
g_warning ("Unexpected event type %d in queue", next_event.type);
593
}
594
595
XAllowEvents (display, AsyncKeyboard, CurrentTime);
596
if (n_events)
597
XUngrabKeyboard (display, CurrentTime);
598
}
599
else
600
{
601
if (xevent->type == KeyPress)
602
wait_for_release_event (xevent, controller);
603
XAllowEvents (display, ReplayKeyboard, CurrentTime);
604
}
605
}
606
607
return;
608
}
609
if (xevent->type == ButtonPress || xevent->type == ButtonRelease)
610
{
611
spi_device_event_controller_forward_mouse_event (controller, xevent);
612
}
613
if (xevent->type == priv->xkb_base_event_code)
614
{
615
XkbAnyEvent * xkb_ev = (XkbAnyEvent *) xevent;
616
/* ugly but probably necessary...*/
617
XSynchronize (display, TRUE);
618
619
if (xkb_ev->xkb_type == XkbStateNotify)
620
{
621
XkbStateNotifyEvent *xkb_snev =
622
(XkbStateNotifyEvent *) xkb_ev;
623
/* check the mouse, to catch mouse events grabbed by
624
* another client; in case we should revert this XKB delatch
625
*/
626
if (!priv->pending_xkb_mod_relatch_mask)
627
{
628
int x, y;
629
gboolean moved;
630
spi_dec_x11_mouse_check (controller, &x, &y, &moved);
631
}
632
/* we check again, since the previous call may have
633
changed this flag */
634
if (priv->pending_xkb_mod_relatch_mask)
635
{
636
unsigned int feedback_mask;
637
#ifdef SPI_XKB_DEBUG
638
fprintf (stderr, "relatching %x\n",
639
priv->pending_xkb_mod_relatch_mask);
640
#endif
641
/* temporarily turn off the latch bell, if it's on */
642
XkbGetControls (display,
643
XkbAccessXFeedbackMask,
644
priv->xkb_desc);
645
feedback_mask = priv->xkb_desc->ctrls->ax_options;
646
if (feedback_mask & XkbAX_StickyKeysFBMask)
647
{
648
XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
649
0, False};
650
priv->xkb_desc->ctrls->ax_options
651
&= ~(XkbAX_StickyKeysFBMask);
652
XkbChangeControls (display, priv->xkb_desc, &changes);
653
}
654
/* TODO: account for lock as well as latch */
655
XkbLatchModifiers (display,
656
XkbUseCoreKbd,
657
priv->pending_xkb_mod_relatch_mask,
658
priv->pending_xkb_mod_relatch_mask);
659
if (feedback_mask & XkbAX_StickyKeysFBMask)
660
{
661
XkbControlsChangesRec changes = {XkbAccessXFeedbackMask,
662
0, False};
663
priv->xkb_desc->ctrls->ax_options = feedback_mask;
664
XkbChangeControls (display, priv->xkb_desc, &changes);
665
}
666
#ifdef SPI_XKB_DEBUG
667
fprintf (stderr, "relatched %x\n",
668
priv->pending_xkb_mod_relatch_mask);
669
#endif
670
priv->pending_xkb_mod_relatch_mask = 0;
671
}
672
else
673
{
674
priv->xkb_latch_mask = xkb_snev->latched_mods;
675
}
676
}
677
XSynchronize (display, FALSE);
678
}
679
680
return;
681
}
682
683
static int
684
_spi_controller_device_error_handler (Display *display, XErrorEvent *error)
685
{
686
if (error->error_code == BadAccess)
687
{
688
g_message ("Could not complete key grab: grab already in use.\n");
689
spi_error_code = BadAccess;
690
return 0;
691
}
692
else
693
{
694
return (*x_default_error_handler) (display, error);
695
}
696
}
697
698
static void
699
spi_controller_register_with_devices (SpiDEController *controller)
700
{
701
DEControllerPrivateData *priv;
702
int event_base, error_base, major_version, minor_version;
703
704
priv = controller->priv;
705
if (XTestQueryExtension (spi_get_display(), &event_base, &error_base, &major_version, &minor_version))
706
{
707
XTestGrabControl (spi_get_display (), True);
708
}
709
710
/* calls to device-specific implementations and routines go here */
711
/* register with: keyboard hardware code handler */
712
/* register with: (translated) keystroke handler */
713
714
priv->have_xkb = XkbQueryExtension (spi_get_display (),
715
&priv->xkb_major_extension_opcode,
716
&priv->xkb_base_event_code,
717
&priv->xkb_base_error_code, NULL, NULL);
718
if (priv->have_xkb)
719
{
720
gint i;
721
guint64 reserved = 0;
722
priv->xkb_desc = XkbGetMap (spi_get_display (), XkbKeySymsMask, XkbUseCoreKbd);
723
XkbSelectEvents (spi_get_display (),
724
XkbUseCoreKbd,
725
XkbStateNotifyMask, XkbStateNotifyMask);
726
_numlock_physical_mask = XkbKeysymToModifiers (spi_get_display (),
727
XK_Num_Lock);
728
for (i = priv->xkb_desc->max_key_code; i >= priv->xkb_desc->min_key_code; --i)
729
{
730
if (priv->xkb_desc->map->key_sym_map[i].kt_index[0] == XkbOneLevelIndex)
731
{
732
if (XkbKeycodeToKeysym (spi_get_display (), i, 0, 0) != 0)
733
{
734
/* don't use this one if there's a grab client! */
735
736
/* Runtime errors are generated from these functions,
737
* that are then quashed. Equivalent to:
738
* try
739
* {Blah}
740
* except
741
* {;}
742
*/
743
744
spi_x_error_trap ();
745
XGrabKey (spi_get_display (), i, 0,
746
spi_get_root_window (),
747
TRUE,
748
GrabModeSync, GrabModeSync);
749
XSync (spi_get_display (), TRUE);
750
XUngrabKey (spi_get_display (), i, 0,
751
spi_get_root_window ());
752
if (!spi_x_error_release ())
753
{
754
reserved = i;
755
break;
756
}
757
}
758
}
759
}
760
if (reserved)
761
{
762
priv->reserved_keycode = reserved;
763
priv->reserved_keysym = XkbKeycodeToKeysym (spi_get_display (), reserved, 0, 0);
764
}
765
else
766
{
767
priv->reserved_keycode = XKeysymToKeycode (spi_get_display (), XK_numbersign);
768
priv->reserved_keysym = XK_numbersign;
769
}
770
#ifdef SPI_RESERVED_DEBUG
771
unsigned sym = 0;
772
sym = XKeycodeToKeysym (spi_get_display (), reserved, 0);
773
fprintf (stderr, "%x\n", sym);
774
fprintf (stderr, "setting the reserved keycode to %d (%s)\n",
775
reserved,
776
XKeysymToString (XKeycodeToKeysym (spi_get_display (),
777
reserved, 0)));
778
#endif
779
}
780
781
spi_set_filter (global_filter_fn, controller);
782
spi_set_events (KeyPressMask | KeyReleaseMask);
783
784
x_default_error_handler = XSetErrorHandler (_spi_controller_device_error_handler);
785
}
786
787
static Accessibility_DeviceEvent
788
spi_keystroke_from_x_key_event (XKeyEvent *x_key_event)
789
{
790
Accessibility_DeviceEvent key_event;
791
KeySym keysym;
792
const int cbuf_bytes = 20;
793
char cbuf [21];
794
int nbytes;
795
796
nbytes = XLookupString (x_key_event, cbuf, cbuf_bytes, &keysym, NULL);
797
key_event.id = (dbus_int32_t)(keysym);
798
key_event.hw_code = (dbus_int16_t) x_key_event->keycode;
799
if (((XEvent *) x_key_event)->type == KeyPress)
800
{
801
key_event.type = Accessibility_KEY_PRESSED_EVENT;
802
}
803
else
804
{
805
key_event.type = Accessibility_KEY_RELEASED_EVENT;
806
}
807
key_event.modifiers = (dbus_uint16_t)(x_key_event->state);
808
key_event.is_text = FALSE;
809
switch (keysym)
810
{
811
case ' ':
812
key_event.event_string = g_strdup ("space");
813
break;
814
case XK_Tab:
815
key_event.event_string = g_strdup ("Tab");
816
break;
817
case XK_BackSpace:
818
key_event.event_string = g_strdup ("Backspace");
819
break;
820
case XK_Return:
821
key_event.event_string = g_strdup ("Return");
822
break;
823
case XK_Home:
824
key_event.event_string = g_strdup ("Home");
825
break;
826
case XK_Page_Down:
827
key_event.event_string = g_strdup ("Page_Down");
828
break;
829
case XK_Page_Up:
830
key_event.event_string = g_strdup ("Page_Up");
831
break;
832
case XK_F1:
833
key_event.event_string = g_strdup ("F1");
834
break;
835
case XK_F2:
836
key_event.event_string = g_strdup ("F2");
837
break;
838
case XK_F3:
839
key_event.event_string = g_strdup ("F3");
840
break;
841
case XK_F4:
842
key_event.event_string = g_strdup ("F4");
843
break;
844
case XK_F5:
845
key_event.event_string = g_strdup ("F5");
846
break;
847
case XK_F6:
848
key_event.event_string = g_strdup ("F6");
849
break;
850
case XK_F7:
851
key_event.event_string = g_strdup ("F7");
852
break;
853
case XK_F8:
854
key_event.event_string = g_strdup ("F8");
855
break;
856
case XK_F9:
857
key_event.event_string = g_strdup ("F9");
858
break;
859
case XK_F10:
860
key_event.event_string = g_strdup ("F10");
861
break;
862
case XK_F11:
863
key_event.event_string = g_strdup ("F11");
864
break;
865
case XK_F12:
866
key_event.event_string = g_strdup ("F12");
867
break;
868
case XK_End:
869
key_event.event_string = g_strdup ("End");
870
break;
871
case XK_Escape:
872
key_event.event_string = g_strdup ("Escape");
873
break;
874
case XK_Up:
875
key_event.event_string = g_strdup ("Up");
876
break;
877
case XK_Down:
878
key_event.event_string = g_strdup ("Down");
879
break;
880
case XK_Left:
881
key_event.event_string = g_strdup ("Left");
882
break;
883
case XK_Right:
884
key_event.event_string = g_strdup ("Right");
885
break;
886
default:
887
if (nbytes > 0)
888
{
889
gunichar c;
890
cbuf[nbytes] = '\0'; /* OK since length is cbuf_bytes+1 */
891
key_event.event_string = g_strdup (cbuf);
892
c = keysym2ucs (keysym);
893
if (c > 0 && !g_unichar_iscntrl (c))
894
{
895
key_event.is_text = TRUE;
896
/* incorrect for some composed chars? */
897
}
898
}
899
else
900
{
901
key_event.event_string = g_strdup ("");
902
}
903
}
904
905
key_event.timestamp = (dbus_uint32_t) x_key_event->time;
906
#ifdef SPI_KEYEVENT_DEBUG
907
{
908
char *pressed_str = "pressed";
909
char *released_str = "released";
910
char *state_ptr;
911
912
if (key_event.type == Accessibility_KEY_PRESSED_EVENT)
913
state_ptr = pressed_str;
914
else
915
state_ptr = released_str;
916
917
fprintf (stderr,
918
"Key %lu %s (%c), modifiers %d; string=%s [%x] %s\n",
919
(unsigned long) keysym,
920
state_ptr,
921
keysym ? (int) keysym : '*',
922
(int) x_key_event->state,
923
key_event.event_string,
924
key_event.event_string[0],
925
(key_event.is_text == TRUE) ? "(text)" : "(not text)");
926
}
927
#endif
928
#ifdef SPI_DEBUG
929
fprintf (stderr, "%s%c\n",
930
(x_key_event->state & Mod1Mask)?"Alt-":"",
931
((x_key_event->state & ShiftMask)^(x_key_event->state & LockMask))?
932
g_ascii_toupper (keysym) : g_ascii_tolower (keysym));
933
fprintf (stderr, "serial: %x Time: %x\n", x_key_event->serial, x_key_event->time);
934
#endif /* SPI_DEBUG */
935
return key_event;
936
}
937
938
static gboolean
939
spi_dec_x11_grab_key (SpiDEController *controller,
940
guint key_val,
941
Accessibility_ControllerEventMask mod_mask)
942
{
943
XGrabKey (spi_get_display (),
944
key_val,
945
mod_mask,
946
spi_get_root_window (),
947
True,
948
GrabModeSync,
949
GrabModeSync);
950
XSync (spi_get_display (), False);
951
return spi_clear_error_state ();
952
}
953
954
static void
955
spi_dec_x11_ungrab_key (SpiDEController *controller,
956
guint key_val,
957
Accessibility_ControllerEventMask mod_mask)
958
{
959
XUngrabKey (spi_get_display (),
960
key_val,
961
mod_mask,
962
spi_get_root_window ());
963
}
964
965
static unsigned int
966
xkb_get_slowkeys_delay (SpiDEController *controller)
967
{
968
unsigned int retval = 0;
969
DEControllerPrivateData *priv = controller->priv;
970
#ifdef HAVE_XKB
971
#ifdef XKB_HAS_GET_SLOW_KEYS_DELAY
972
retval = XkbGetSlowKeysDelay (spi_get_display (),
973
XkbUseCoreKbd, &bounce_delay);
974
#else
975
if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
976
{
977
Status s = XkbGetControls (spi_get_display (),
978
XkbAllControlsMask, priv->xkb_desc);
979
if (s == Success)
980
{
981
if (priv->xkb_desc->ctrls->enabled_ctrls & XkbSlowKeysMask)
982
retval = priv->xkb_desc->ctrls->slow_keys_delay;
983
}
984
}
985
#endif
986
#endif
987
#ifdef SPI_XKB_DEBUG
988
fprintf (stderr, "SlowKeys delay: %d\n", (int) retval);
989
#endif
990
return retval;
991
}
992
993
static unsigned int
994
xkb_get_bouncekeys_delay (SpiDEController *controller)
995
{
996
unsigned int retval = 0;
997
DEControllerPrivateData *priv = controller->priv;
998
#ifdef HAVE_XKB
999
#ifdef XKB_HAS_GET_BOUNCE_KEYS_DELAY
1000
retval = XkbGetBounceKeysDelay (spi_get_display (),
1001
XkbUseCoreKbd, &bounce_delay);
1002
#else
1003
if (!(priv->xkb_desc == (XkbDescPtr) BadAlloc || priv->xkb_desc == NULL))
1004
{
1005
Status s = XkbGetControls (spi_get_display (),
1006
XkbAllControlsMask, priv->xkb_desc);
1007
if (s == Success)
1008
{
1009
if (priv->xkb_desc->ctrls->enabled_ctrls & XkbBounceKeysMask)
1010
retval = priv->xkb_desc->ctrls->debounce_delay;
1011
}
1012
}
1013
#endif
1014
#endif
1015
#ifdef SPI_XKB_DEBUG
1016
fprintf (stderr, "BounceKeys delay: %d\n", (int) retval);
1017
#endif
1018
return retval;
1019
}
1020
1021
static gboolean
1022
spi_dec_x11_synth_keycode_press (SpiDEController *controller,
1023
unsigned int keycode)
1024
{
1025
unsigned int time = CurrentTime;
1026
unsigned int bounce_delay;
1027
unsigned int elapsed_msec;
1028
struct timeval tv;
1029
DEControllerPrivateData *priv = controller->priv;
1030
1031
spi_x_error_trap ();
1032
if (keycode == priv->last_release_keycode)
1033
{
1034
bounce_delay = xkb_get_bouncekeys_delay (controller);
1035
if (bounce_delay)
1036
{
1037
gettimeofday (&tv, NULL);
1038
elapsed_msec =
1039
(tv.tv_sec - priv->last_release_time.tv_sec) * 1000
1040
+ (tv.tv_usec - priv->last_release_time.tv_usec) / 1000;
1041
#ifdef SPI_XKB_DEBUG
1042
fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1043
(long) (tv.tv_usec - priv->last_release_time.tv_usec));
1044
#endif
1045
#ifdef THIS_IS_BROKEN
1046
if (elapsed_msec < bounce_delay)
1047
time = bounce_delay - elapsed_msec + 1;
1048
#else
1049
time = bounce_delay + 10;
1050
/* fudge for broken XTest */
1051
#endif
1052
#ifdef SPI_XKB_DEBUG
1053
fprintf (stderr, "waiting %d ms\n", time);
1054
#endif
1055
}
1056
}
1057
XTestFakeKeyEvent (spi_get_display (), keycode, True, time);
1058
priv->last_press_keycode = keycode;
1059
XFlush (spi_get_display ());
1060
XSync (spi_get_display (), False);
1061
gettimeofday (&priv->last_press_time, NULL);
1062
return TRUE;
1063
}
1064
1065
static gboolean
1066
spi_dec_x11_synth_keycode_release (SpiDEController *controller,
1067
unsigned int keycode)
1068
{
1069
unsigned int time = CurrentTime;
1070
unsigned int slow_delay;
1071
unsigned int elapsed_msec;
1072
struct timeval tv;
1073
DEControllerPrivateData *priv = controller->priv;
1074
1075
spi_x_error_trap ();
1076
if (keycode == priv->last_press_keycode)
1077
{
1078
slow_delay = xkb_get_slowkeys_delay (controller);
1079
if (slow_delay)
1080
{
1081
gettimeofday (&tv, NULL);
1082
elapsed_msec =
1083
(tv.tv_sec - priv->last_press_time.tv_sec) * 1000
1084
+ (tv.tv_usec - priv->last_press_time.tv_usec) / 1000;
1085
#ifdef SPI_XKB_DEBUG
1086
fprintf (stderr, "%d ms elapsed (%ld usec)\n", elapsed_msec,
1087
(long) (tv.tv_usec - priv->last_press_time.tv_usec));
1088
#endif
1089
#ifdef THIS_IS_BROKEN_DUNNO_WHY
1090
if (elapsed_msec < slow_delay)
1091
time = slow_delay - elapsed_msec + 1;
1092
#else
1093
time = slow_delay + 10;
1094
/* our XTest seems broken, we have to add slop as above */
1095
#endif
1096
#ifdef SPI_XKB_DEBUG
1097
fprintf (stderr, "waiting %d ms\n", time);
1098
#endif
1099
}
1100
}
1101
XTestFakeKeyEvent (spi_get_display (), keycode, False, time);
1102
priv->last_release_keycode = keycode;
1103
XSync (spi_get_display (), False);
1104
gettimeofday (&priv->last_release_time, NULL);
1105
return TRUE;
1106
}
1107
1108
static gboolean
1109
spi_dec_x11_lock_modifiers (SpiDEController *controller, unsigned modifiers)
1110
{
1111
DEControllerPrivateData *priv = controller->priv;
1112
1113
if (priv->have_xkb) {
1114
return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1115
modifiers, modifiers);
1116
} else {
1117
int mod_index;
1118
if (xmkeymap==NULL)
1119
xmkeymap = XGetModifierMapping(spi_get_display ());
1120
for (mod_index=0;mod_index<8;mod_index++)
1121
if (modifiers & (1<<mod_index))
1122
spi_dec_x11_synth_keycode_press(controller, xmkeymap->modifiermap[mod_index]);
1123
return TRUE;
1124
}
1125
}
1126
1127
static gboolean
1128
spi_dec_x11_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
1129
{
1130
DEControllerPrivateData *priv = controller->priv;
1131
1132
if (priv->have_xkb) {
1133
return XkbLockModifiers (spi_get_display (), XkbUseCoreKbd,
1134
modifiers, 0);
1135
} else {
1136
int mod_index;
1137
if (xmkeymap==NULL)
1138
xmkeymap = XGetModifierMapping(spi_get_display ());
1139
1140
for (mod_index=0;mod_index<8;mod_index++)
1141
if (modifiers & (1<<mod_index))
1142
spi_dec_x11_synth_keycode_release(controller, xmkeymap->modifiermap[mod_index]);
1143
return TRUE;
1144
}
1145
}
1146
1147
static KeySym
1148
keysym_for_unichar (SpiDEController *controller, gunichar unichar)
1149
{
1150
return (KeySym) ucs2keysym ((long) unichar);
1151
}
1152
1153
static gboolean
1154
spi_dec_x11_synth_keystring (SpiDEController *controller, guint synth_type, gint keycode, const char *keystring)
1155
{
1156
/* probably we need to create and inject an XIM handler eventually. */
1157
/* for now, try to match the string to existing
1158
* keycode+modifier states.
1159
*/
1160
KeySym *keysyms;
1161
gint maxlen = 0;
1162
gunichar unichar = 0;
1163
gint i = 0;
1164
gboolean retval = TRUE;
1165
const gchar *c;
1166
KeySym keysym;
1167
1168
maxlen = strlen (keystring) + 1;
1169
keysyms = g_new0 (KeySym, maxlen);
1170
if (!(keystring && *keystring && g_utf8_validate (keystring, -1, &c))) {
1171
retval = FALSE;
1172
}
1173
else {
1174
#ifdef SPI_DEBUG
1175
fprintf (stderr, "[keystring synthesis attempted on %s]\n", keystring);
1176
#endif
1177
while (keystring && (unichar = g_utf8_get_char (keystring))) {
1178
char bytes[6];
1179
gint mbytes;
1180
1181
mbytes = g_unichar_to_utf8 (unichar, bytes);
1182
bytes[mbytes] = '\0';
1183
#ifdef SPI_DEBUG
1184
fprintf (stderr, "[unichar %s]", bytes);
1185
#endif
1186
keysym = keysym_for_unichar (controller, unichar);
1187
if (keysym == NoSymbol) {
1188
#ifdef SPI_DEBUG
1189
fprintf (stderr, "no keysym for %s", bytes);
1190
#endif
1191
retval = FALSE;
1192
break;
1193
}
1194
keysyms[i++] = keysym;
1195
keystring = g_utf8_next_char (keystring);
1196
}
1197
keysyms[i++] = 0;
1198
XSynchronize (spi_get_display (), TRUE);
1199
for (i = 0; keysyms[i]; ++i) {
1200
if (!spi_dec_synth_keysym (controller, keysyms[i])) {
1201
#ifdef SPI_DEBUG
1202
fprintf (stderr, "could not synthesize %c\n",
1203
(int) keysyms[i]);
1204
#endif
1205
retval = FALSE;
1206
break;
1207
}
1208
}
1209
XSynchronize (spi_get_display (), FALSE);
1210
}
1211
g_free (keysyms);
1212
1213
if (synth_type == Accessibility_KEY_SYM) {
1214
keysym = keycode;
1215
}
1216
else {
1217
keysym = XkbKeycodeToKeysym (spi_get_display (), keycode, 0, 0);
1218
}
1219
if (XkbKeysymToModifiers (spi_get_display (), keysym) == 0) {
1220
spi_dec_clear_unlatch_pending (controller);
1221
}
1222
return retval;
1223
}
1224
1225
#ifdef HAVE_XEVIE
1226
static Bool
1227
isEvent(Display *dpy, XEvent *event, char *arg)
1228
{
1229
return TRUE;
1230
}
1231
1232
static gboolean
1233
handle_io (GIOChannel *source,
1234
GIOCondition condition,
1235
gpointer data)
1236
{
1237
SpiDEController *controller = (SpiDEController *) data;
1238
DEControllerPrivateData *priv = controller->priv;
1239
gboolean is_consumed = FALSE;
1240
XEvent ev;
1241
1242
while (XCheckIfEvent(priv->xevie_display, &ev, isEvent, NULL))
1243
{
1244
if (ev.type == KeyPress || ev.type == KeyRelease)
1245
is_consumed = spi_device_event_controller_forward_key_event (controller, &ev);
1246
1247
if (! is_consumed)
1248
XevieSendEvent(priv->xevie_display, &ev, XEVIE_UNMODIFIED);
1249
}
1250
1251
return TRUE;
1252
}
1253
#endif /* HAVE_XEVIE */
1254
1255
static void
1256
spi_dec_x11_init (SpiDEController *controller)
1257
{
1258
DEControllerPrivateData *priv = controller->priv;
1259
spi_events_init (spi_get_display());
1260
#ifdef HAVE_XEVIE
1261
GIOChannel *ioc;
1262
int fd;
1263
#endif /* HAVE_XEVIE */
1264
1265
spi_events_init (spi_get_display ());
1266
#ifdef HAVE_XEVIE
1267
priv->xevie_display = XOpenDisplay(NULL);
1268
1269
if (XevieStart(priv->xevie_display) == TRUE)
1270
{
1271
#ifdef SPI_KEYEVENT_DEBUG
1272
fprintf (stderr, "XevieStart() success \n");
1273
#endif
1274
XevieSelectInput(priv->xevie_display, KeyPressMask | KeyReleaseMask);
1275
1276
fd = ConnectionNumber(priv->xevie_display);
1277
ioc = g_io_channel_unix_new (fd);
1278
g_io_add_watch (ioc, G_IO_IN | G_IO_HUP, handle_io, controller);
1279
g_io_channel_unref (ioc);
1280
}
1281
else
1282
{
1283
#ifdef SPI_KEYEVENT_DEBUG
1284
fprintf (stderr, "XevieStart() failed, only one client is allowed to do event int exception\n");
1285
#endif
1286
}
1287
#endif /* HAVE_XEVIE */
1288
1289
gettimeofday (&priv->last_press_time, NULL);
1290
gettimeofday (&priv->last_release_time, NULL);
1291
spi_controller_register_with_devices (controller);
1292
1293
spi_dec_init_mouse_listener (controller);
1294
1295
saved_controller = controller;
1296
}
1297
1298
static void
1299
spi_dec_x11_finalize (SpiDEController *controller)
1300
{
1301
DEControllerPrivateData *priv = controller->priv;
1302
/* disconnect any special listeners, get rid of outstanding keygrabs */
1303
XUngrabKey (spi_get_display (), AnyKey, AnyModifier, DefaultRootWindow (spi_get_display ()));
1304
1305
#ifdef HAVE_XEVIE
1306
if (priv->xevie_display != NULL)
1307
{
1308
XevieEnd(priv->xevie_display);
1309
#ifdef SPI_KEYEVENT_DEBUG
1310
printf("XevieEnd(dpy) finished \n");
1311
#endif
1312
}
1313
#endif
1314
1315
if (priv->xkb_desc)
1316
XkbFreeKeyboard (priv->xkb_desc, 0, True);
1317
/* TODO: Should free the keymap */
1318
}
1319
1320
static gboolean
1321
spi_device_event_controller_forward_key_event (SpiDEController *controller,
1322
const XEvent *event)
1323
{
1324
DEControllerPrivateData *priv = controller->priv;
1325
Accessibility_DeviceEvent key_event;
1326
gboolean ret;
1327
1328
g_assert (event->type == KeyPress || event->type == KeyRelease);
1329
1330
key_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
1331
1332
if (priv->xevie_display == NULL)
1333
spi_controller_update_key_grabs (controller, &key_event);
1334
1335
/* relay to listeners, and decide whether to consume it or not */
1336
ret = spi_controller_notify_keylisteners (controller, &key_event, TRUE);
1337
g_free(key_event.event_string);
1338
return ret;
1339
}
1340
1341
1342
static gboolean
1343
is_key_released (long code)
1344
{
1345
char keys[32];
1346
int down;
1347
1348
XQueryKeymap (spi_get_display (), keys);
1349
down = BIT (keys, code);
1350
return (down == 0);
1351
}
1352
1353
static gboolean
1354
check_release (gpointer data)
1355
{
1356
gboolean released;
1357
Accessibility_DeviceEvent *event = (Accessibility_DeviceEvent *)data;
1358
KeyCode code = event->hw_code;
1359
1360
released = is_key_released (code);
1361
1362
if (released)
1363
{
1364
check_release_handler = 0;
1365
event->type = Accessibility_KEY_RELEASED_EVENT;
1366
spi_controller_notify_keylisteners (saved_controller, event, TRUE);
1367
}
1368
return (released == 0);
1369
}
1370
1371
static void
1372
wait_for_release_event (XEvent *event,
1373
SpiDEController *controller)
1374
{
1375
pressed_event = spi_keystroke_from_x_key_event ((XKeyEvent *) event);
1376
check_release_handler = g_timeout_add (CHECK_RELEASE_DELAY, check_release, &pressed_event);
1377
g_source_set_name_by_id (check_release_handler, "[at-spi2-core] check_release");
1378
}
1379
1380
static void
1381
spi_dec_x11_emit_modifier_event (SpiDEController *controller, guint prev_mask,
1382
guint current_mask)
1383
{
1384
dbus_uint32_t d1, d2;
1385
1386
#ifdef SPI_XKB_DEBUG
1387
fprintf (stderr, "MODIFIER CHANGE EVENT! %x to %x\n",
1388
prev_mask, current_mask);
1389
#endif
1390
1391
/* set bits for the virtual modifiers like NUMLOCK */
1392
if (prev_mask & _numlock_physical_mask)
1393
prev_mask |= SPI_KEYMASK_NUMLOCK;
1394
if (current_mask & _numlock_physical_mask)
1395
current_mask |= SPI_KEYMASK_NUMLOCK;
1396
1397
d1 = prev_mask & key_modifier_mask;
1398
d2 = current_mask & key_modifier_mask;
1399
spi_dec_dbus_emit(controller, SPI_DBUS_INTERFACE_EVENT_KEYBOARD, "Modifiers", "", d1, d2);
1400
}
1401
1402
static void
1403
spi_dec_x11_generate_mouse_event (SpiDEController *controller,
1404
gint x,
1405
gint y,
1406
const char *eventName)
1407
{
1408
int button = 0;
1409
gboolean err = FALSE;
1410
Display *display = spi_get_display ();
1411
1412
switch (eventName[0])
1413
{
1414
case 'b':
1415
switch (eventName[1])
1416
{
1417
/* TODO: check number of buttons before parsing */
1418
case '1':
1419
button = 1;
1420
break;
1421
case '2':
1422
button = 2;
1423
break;
1424
case '3':
1425
button = 3;
1426
break;
1427
case '4':
1428
button = 4;
1429
break;
1430
case '5':
1431
button = 5;
1432
break;
1433
default:
1434
err = TRUE;
1435
}
1436
if (!err)
1437
{
1438
if (x != -1 && y != -1)
1439
{
1440
XTestFakeMotionEvent (display, DefaultScreen (display),
1441
x, y, 0);
1442
}
1443
XTestFakeButtonEvent (display, button, !(eventName[2] == 'r'), 0);
1444
if (eventName[2] == 'c')
1445
XTestFakeButtonEvent (display, button, FALSE, 1);
1446
else if (eventName[2] == 'd')
1447
{
1448
XTestFakeButtonEvent (display, button, FALSE, 1);
1449
XTestFakeButtonEvent (display, button, TRUE, 2);
1450
XTestFakeButtonEvent (display, button, FALSE, 3);
1451
}
1452
}
1453
break;
1454
case 'r': /* relative motion */
1455
XTestFakeRelativeMotionEvent (display, x, y, 0);
1456
break;
1457
case 'a': /* absolute motion */
1458
XTestFakeMotionEvent (display, DefaultScreen (display),
1459
x, y, 0);
1460
break;
1461
}
1462
}
1463
1464
void
1465
spi_dec_setup_x11 (SpiDEControllerClass *klass)
1466
{
1467
GObjectClass *object_class = G_OBJECT_CLASS (klass);
1468
1469
klass->plat.get_keycode = spi_dec_x11_get_keycode;
1470
klass->plat.mouse_check = spi_dec_x11_mouse_check;
1471
klass->plat.synth_keycode_press = spi_dec_x11_synth_keycode_press;
1472
klass->plat.synth_keycode_release = spi_dec_x11_synth_keycode_release;
1473
klass->plat.lock_modifiers = spi_dec_x11_lock_modifiers;
1474
klass->plat.unlock_modifiers = spi_dec_x11_unlock_modifiers;
1475
klass->plat.synth_keystring = spi_dec_x11_synth_keystring;
1476
klass->plat.grab_key = spi_dec_x11_grab_key;
1477
klass->plat.ungrab_key = spi_dec_x11_ungrab_key;
1478
klass->plat.emit_modifier_event = spi_dec_x11_emit_modifier_event;
1479
klass->plat.generate_mouse_event = spi_dec_x11_generate_mouse_event;
1480
1481
klass->plat.init = spi_dec_x11_init;
1482
klass->plat.finalize = spi_dec_x11_finalize;
1483
1484
g_type_class_add_private (object_class, sizeof (DEControllerPrivateData));
1485
}
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Version: 2.0.1