~elementary-os/elementaryos/os-patch-at-spi2-core-xenial
» Revision
1
: registryd/deviceeventcontroller.c
« back to all changes in this revision
Viewing changes to registryd/deviceeventcontroller.c
- browse files at revision 1
- compare with another revision
- download diff
- download tarball
- view history from revision 1
- 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.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.c: implement the DeviceEventController interface */
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 <glib.h>
38
39
#include <dbus/dbus.h>
40
41
#include "paths.h"
42
#include "keymasks.h"
43
#include "de-types.h"
44
#include "de-marshaller.h"
45
#include "display.h"
46
#include "event-source.h"
47
48
#include "deviceeventcontroller.h"
49
#include "reentrant-list.h"
50
51
#include "introspection.h"
52
53
#define CHECK_RELEASE_DELAY 20
54
#define BIT(c, x) (c[x/8]&(1<<(x%8)))
55
static SpiDEController *saved_controller;
56
57
/* Our parent Gtk object type */
58
#define PARENT_TYPE G_TYPE_OBJECT
59
60
/* A pointer to our parent object class */
61
static int spi_error_code = 0;
62
struct _SpiPoint {
63
gint x;
64
gint y;
65
};
66
typedef struct _SpiPoint SpiPoint;
67
static unsigned int mouse_mask_state = 0;
68
static unsigned int key_modifier_mask =
69
Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask | ShiftMask | LockMask | ControlMask | SPI_KEYMASK_NUMLOCK;
70
static unsigned int _numlock_physical_mask = Mod2Mask; /* a guess, will be reset */
71
72
static gboolean have_mouse_listener = FALSE;
73
static gboolean have_mouse_event_listener = FALSE;
74
75
76
typedef struct {
77
guint ref_count : 30;
78
guint pending_add : 1;
79
guint pending_remove : 1;
80
81
Accessibility_ControllerEventMask mod_mask;
82
dbus_uint32_t key_val; /* KeyCode */
83
} DEControllerGrabMask;
84
85
86
gboolean spi_controller_update_key_grabs (SpiDEController *controller,
87
Accessibility_DeviceEvent *recv);
88
89
static gboolean eventtype_seq_contains_event (dbus_uint32_t types,
90
const Accessibility_DeviceEvent *event);
91
static gboolean spi_dec_poll_mouse_moving (gpointer data);
92
static gboolean spi_dec_poll_mouse_idle (gpointer data);
93
94
G_DEFINE_TYPE(SpiDEController, spi_device_event_controller, G_TYPE_OBJECT)
95
96
static gint
97
spi_dec_plat_get_keycode (SpiDEController *controller,
98
gint keysym,
99
gchar *key_str,
100
gboolean fix,
101
guint *modmask)
102
{
103
SpiDEControllerClass *klass;
104
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
105
if (klass->plat.get_keycode)
106
return klass->plat.get_keycode (controller, keysym, key_str, fix, modmask);
107
else
108
return keysym;
109
}
110
111
static guint
112
spi_dec_plat_mouse_check (SpiDEController *controller,
113
int *x, int *y, gboolean *moved)
114
{
115
SpiDEControllerClass *klass;
116
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
117
if (klass->plat.mouse_check)
118
return klass->plat.mouse_check (controller, x, y, moved);
119
else
120
return 0;
121
}
122
123
static gboolean
124
spi_dec_plat_grab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
125
{
126
SpiDEControllerClass *klass;
127
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
128
if (klass->plat.grab_key)
129
return klass->plat.grab_key (controller, key_val, mod_mask);
130
else
131
return FALSE;
132
}
133
134
static void
135
spi_dec_plat_ungrab_key (SpiDEController *controller, guint key_val, Accessibility_ControllerEventMask mod_mask)
136
{
137
SpiDEControllerClass *klass;
138
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
139
if (klass->plat.ungrab_key)
140
klass->plat.ungrab_key (controller, key_val, mod_mask);
141
}
142
143
static gboolean
144
spi_dec_plat_synth_keycode_press (SpiDEController *controller,
145
unsigned int keycode)
146
{
147
SpiDEControllerClass *klass;
148
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
149
if (klass->plat.synth_keycode_press)
150
return klass->plat.synth_keycode_press (controller, keycode);
151
else
152
return FALSE;
153
}
154
155
static gboolean
156
spi_dec_plat_synth_keycode_release (SpiDEController *controller,
157
unsigned int keycode)
158
{
159
SpiDEControllerClass *klass;
160
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
161
if (klass->plat.synth_keycode_release)
162
return klass->plat.synth_keycode_release (controller, keycode);
163
else
164
return FALSE;
165
}
166
167
static gboolean
168
spi_dec_plat_lock_modifiers (SpiDEController *controller, unsigned modifiers)
169
{
170
SpiDEControllerClass *klass;
171
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
172
if (klass->plat.lock_modifiers)
173
return klass->plat.lock_modifiers (controller, modifiers);
174
else
175
return FALSE;
176
}
177
178
static gboolean
179
spi_dec_plat_unlock_modifiers (SpiDEController *controller, unsigned modifiers)
180
{
181
SpiDEControllerClass *klass;
182
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
183
if (klass->plat.unlock_modifiers)
184
return klass->plat.unlock_modifiers (controller, modifiers);
185
else
186
return FALSE;
187
}
188
189
static gboolean
190
spi_dec_plat_synth_keystring (SpiDEController *controller, guint synth_type, gint keycode, const char *keystring)
191
{
192
SpiDEControllerClass *klass;
193
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
194
if (klass->plat.synth_keystring)
195
return klass->plat.synth_keystring (controller, synth_type, keycode, keystring);
196
else
197
return FALSE;
198
}
199
200
static void
201
spi_dec_plat_emit_modifier_event (SpiDEController *controller, guint prev_mask,
202
guint current_mask)
203
{
204
SpiDEControllerClass *klass;
205
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
206
if (klass->plat.emit_modifier_event)
207
klass->plat.emit_modifier_event (controller, prev_mask, current_mask);
208
}
209
210
static void
211
spi_dec_plat_generate_mouse_event (SpiDEController *controller,
212
gint x,
213
gint y,
214
const char *eventName)
215
{
216
SpiDEControllerClass *klass;
217
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
218
if (klass->plat.generate_mouse_event)
219
klass->plat.generate_mouse_event (controller, x, y, eventName);
220
}
221
222
DBusMessage *
223
invalid_arguments_error (DBusMessage *message)
224
{
225
DBusMessage *reply;
226
gchar *errmsg;
227
228
errmsg= g_strdup_printf (
229
"Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
230
dbus_message_get_member (message),
231
dbus_message_get_signature (message),
232
dbus_message_get_interface (message));
233
reply = dbus_message_new_error (message,
234
DBUS_ERROR_INVALID_ARGS,
235
errmsg);
236
g_free (errmsg);
237
return reply;
238
}
239
240
/* Private methods */
241
static dbus_bool_t
242
spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
243
{
244
char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
245
if (match)
246
{
247
DBusError error;
248
dbus_error_init (&error);
249
dbus_bus_add_match (bus, match, &error);
250
g_free (match);
251
if (dbus_error_is_set (&error))
252
{
253
dbus_error_free (&error);
254
return FALSE;
255
}
256
else
257
{
258
return TRUE;
259
}
260
}
261
else return FALSE;
262
}
263
264
static dbus_bool_t
265
spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
266
{
267
char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
268
if (match)
269
{
270
DBusError error;
271
dbus_error_init (&error);
272
dbus_bus_remove_match (bus, match, &error);
273
g_free (match);
274
if (dbus_error_is_set (&error))
275
{
276
dbus_error_free (&error);
277
return FALSE;
278
}
279
else
280
{
281
return TRUE;
282
}
283
}
284
else return FALSE;
285
}
286
287
static DEControllerGrabMask *
288
spi_grab_mask_clone (DEControllerGrabMask *grab_mask)
289
{
290
DEControllerGrabMask *clone = g_new (DEControllerGrabMask, 1);
291
292
memcpy (clone, grab_mask, sizeof (DEControllerGrabMask));
293
294
clone->ref_count = 1;
295
clone->pending_add = TRUE;
296
clone->pending_remove = FALSE;
297
298
return clone;
299
}
300
301
static void
302
spi_grab_mask_free (DEControllerGrabMask *grab_mask)
303
{
304
g_free (grab_mask);
305
}
306
307
static gint
308
spi_grab_mask_compare_values (gconstpointer p1, gconstpointer p2)
309
{
310
DEControllerGrabMask *l1 = (DEControllerGrabMask *) p1;
311
DEControllerGrabMask *l2 = (DEControllerGrabMask *) p2;
312
313
if (p1 == p2)
314
{
315
return 0;
316
}
317
else
318
{
319
return ((l1->mod_mask != l2->mod_mask) || (l1->key_val != l2->key_val));
320
}
321
}
322
323
void
324
spi_dec_dbus_emit (SpiDEController *controller, const char *interface,
325
const char *name, const char *minor, int a1, int a2)
326
{
327
DBusMessage *signal = NULL;
328
DBusMessageIter iter, iter_struct, iter_variant;
329
int nil = 0;
330
const char *path = SPI_DBUS_PATH_ROOT;
331
const char *bus_name = dbus_bus_get_unique_name (controller->bus);
332
333
signal = dbus_message_new_signal (path, interface, name);
334
335
dbus_message_iter_init_append (signal, &iter);
336
337
dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &minor);
338
dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a1);
339
dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &a2);
340
dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "i", &iter_variant);
341
dbus_message_iter_append_basic (&iter_variant, DBUS_TYPE_INT32, &nil);
342
dbus_message_iter_close_container (&iter, &iter_variant);
343
344
dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL,
345
&iter_struct);
346
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &bus_name);
347
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &path);
348
dbus_message_iter_close_container (&iter, &iter_struct);
349
350
dbus_connection_send (controller->bus, signal, NULL);
351
dbus_message_unref (signal);
352
}
353
354
static gboolean
355
spi_dec_poll_mouse_moved (gpointer data)
356
{
357
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(data);
358
int x, y;
359
gboolean moved;
360
guint mask_return;
361
362
mask_return = spi_dec_plat_mouse_check (controller, &x, &y, &moved);
363
364
if ((mask_return & key_modifier_mask) !=
365
(mouse_mask_state & key_modifier_mask))
366
{
367
spi_dec_plat_emit_modifier_event (controller, mouse_mask_state, mask_return);
368
mouse_mask_state = mask_return;
369
}
370
371
return moved;
372
}
373
374
static gboolean
375
spi_dec_poll_mouse_idle (gpointer data)
376
{
377
if (!have_mouse_event_listener && !have_mouse_listener)
378
return FALSE;
379
else if (!spi_dec_poll_mouse_moved (data))
380
return TRUE;
381
else
382
{
383
guint id;
384
id = g_timeout_add (20, spi_dec_poll_mouse_moving, data);
385
g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_moving");
386
return FALSE;
387
}
388
}
389
390
static gboolean
391
spi_dec_poll_mouse_moving (gpointer data)
392
{
393
if (!have_mouse_event_listener && !have_mouse_listener)
394
return FALSE;
395
else if (spi_dec_poll_mouse_moved (data))
396
return TRUE;
397
else
398
{
399
guint id;
400
id = g_timeout_add (100, spi_dec_poll_mouse_idle, data);
401
g_source_set_name_by_id (id, "[at-spi2-core] check_release");
402
return FALSE;
403
}
404
}
405
406
/**
407
* Eventually we can use this to make the marshalling of mask types
408
* more sane, but for now we just use this to detect
409
* the use of 'virtual' masks such as numlock and convert them to
410
* system-specific mask values (i.e. ModMask).
411
*
412
**/
413
static Accessibility_ControllerEventMask
414
spi_dec_translate_mask (Accessibility_ControllerEventMask mask)
415
{
416
Accessibility_ControllerEventMask tmp_mask;
417
gboolean has_numlock;
418
419
has_numlock = (mask & SPI_KEYMASK_NUMLOCK);
420
tmp_mask = mask;
421
if (has_numlock)
422
{
423
tmp_mask = mask ^ SPI_KEYMASK_NUMLOCK;
424
tmp_mask |= _numlock_physical_mask;
425
}
426
427
return tmp_mask;
428
}
429
430
static DEControllerKeyListener *
431
spi_dec_key_listener_new (const char *bus_name,
432
const char *path,
433
GSList *keys,
434
const Accessibility_ControllerEventMask mask,
435
const dbus_uint32_t types,
436
const Accessibility_EventListenerMode *mode)
437
{
438
DEControllerKeyListener *key_listener = g_new0 (DEControllerKeyListener, 1);
439
key_listener->listener.bus_name = g_strdup(bus_name);
440
key_listener->listener.path = g_strdup(path);
441
key_listener->listener.type = SPI_DEVICE_TYPE_KBD;
442
key_listener->keys = keys;
443
key_listener->mask = spi_dec_translate_mask (mask);
444
key_listener->listener.types = types;
445
if (mode)
446
{
447
key_listener->mode = (Accessibility_EventListenerMode *) g_malloc(sizeof(Accessibility_EventListenerMode));
448
memcpy(key_listener->mode, mode, sizeof(*mode));
449
}
450
else
451
key_listener->mode = NULL;
452
453
#ifdef SPI_DEBUG
454
g_print ("new listener, with mask %x, is_global %d, keys %p (%d)\n",
455
(unsigned int) key_listener->mask,
456
(int) (mode ? mode->global : 0),
457
(void *) key_listener->keys,
458
(int) (key_listener->keys ? g_slist_length(key_listener->keys) : 0));
459
#endif
460
461
return key_listener;
462
}
463
464
static DEControllerListener *
465
spi_dec_listener_new (const char *bus_name,
466
const char *path,
467
dbus_uint32_t types)
468
{
469
DEControllerListener *listener = g_new0 (DEControllerListener, 1);
470
listener->bus_name = g_strdup(bus_name);
471
listener->path = g_strdup(path);
472
listener->type = SPI_DEVICE_TYPE_MOUSE;
473
listener->types = types;
474
return listener;
475
}
476
477
static DEControllerListener *
478
spi_listener_clone (DEControllerListener *listener)
479
{
480
DEControllerListener *clone = g_new0 (DEControllerListener, 1);
481
clone->bus_name = g_strdup (listener->bus_name);
482
clone->path = g_strdup (listener->path);
483
clone->type = listener->type;
484
clone->types = listener->types;
485
return clone;
486
}
487
488
static GSList *keylist_clone (GSList *s)
489
{
490
GSList *d = NULL;
491
GSList *l;
492
493
for (l = s; l; l = g_slist_next(l))
494
{
495
Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
496
if (kd)
497
{
498
Accessibility_KeyDefinition *kds = (Accessibility_KeyDefinition *)l->data;
499
kd->keycode = kds->keycode;
500
kd->keysym = kds->keysym;
501
kd->keystring = g_strdup(kds->keystring);
502
d = g_slist_append(d, kd);
503
}
504
}
505
return d;
506
}
507
508
static DEControllerKeyListener *
509
spi_key_listener_clone (DEControllerKeyListener *key_listener)
510
{
511
DEControllerKeyListener *clone = g_new0 (DEControllerKeyListener, 1);
512
clone->listener.bus_name = g_strdup (key_listener->listener.bus_name);
513
clone->listener.path = g_strdup (key_listener->listener.path);
514
clone->listener.type = SPI_DEVICE_TYPE_KBD;
515
clone->keys = keylist_clone (key_listener->keys);
516
clone->mask = key_listener->mask;
517
clone->listener.types = key_listener->listener.types;
518
if (key_listener->mode)
519
{
520
clone->mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
521
if (clone->mode) memcpy(clone->mode, key_listener->mode, sizeof(Accessibility_EventListenerMode));
522
}
523
else
524
clone->mode = NULL;
525
return clone;
526
}
527
528
static void keylist_free(GSList *keys)
529
{
530
GSList *l;
531
532
for (l = keys; l; l = g_slist_next(l))
533
{
534
Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)l->data;
535
g_free(kd->keystring);
536
g_free(kd);
537
}
538
g_slist_free (keys);
539
}
540
541
static void
542
spi_key_listener_data_free (DEControllerKeyListener *key_listener)
543
{
544
keylist_free(key_listener->keys);
545
if (key_listener->mode) g_free(key_listener->mode);
546
g_free (key_listener->listener.bus_name);
547
g_free (key_listener->listener.path);
548
g_free (key_listener);
549
}
550
551
static void
552
spi_key_listener_clone_free (DEControllerKeyListener *clone)
553
{
554
spi_key_listener_data_free (clone);
555
}
556
557
static void
558
spi_listener_clone_free (DEControllerListener *clone)
559
{
560
g_free (clone->path);
561
g_free (clone->bus_name);
562
g_free (clone);
563
}
564
565
static void
566
spi_dec_listener_free (DEControllerListener *listener)
567
{
568
if (listener->type == SPI_DEVICE_TYPE_KBD)
569
spi_key_listener_data_free ((DEControllerKeyListener *) listener);
570
else
571
{
572
g_free (listener->bus_name);
573
g_free (listener->path);
574
}
575
}
576
577
static void
578
_register_keygrab (SpiDEController *controller,
579
DEControllerGrabMask *grab_mask)
580
{
581
GList *l;
582
583
l = g_list_find_custom (controller->keygrabs_list, grab_mask,
584
spi_grab_mask_compare_values);
585
if (l)
586
{
587
DEControllerGrabMask *cur_mask = l->data;
588
589
cur_mask->ref_count++;
590
if (cur_mask->pending_remove)
591
{
592
cur_mask->pending_remove = FALSE;
593
}
594
}
595
else
596
{
597
controller->keygrabs_list =
598
g_list_prepend (controller->keygrabs_list,
599
spi_grab_mask_clone (grab_mask));
600
}
601
}
602
603
static void
604
_deregister_keygrab (SpiDEController *controller,
605
DEControllerGrabMask *grab_mask)
606
{
607
GList *l;
608
609
l = g_list_find_custom (controller->keygrabs_list, grab_mask,
610
spi_grab_mask_compare_values);
611
612
if (l)
613
{
614
DEControllerGrabMask *cur_mask = l->data;
615
616
cur_mask->ref_count--;
617
if (cur_mask->ref_count <= 0)
618
{
619
cur_mask->pending_remove = TRUE;
620
}
621
}
622
}
623
624
static void
625
handle_keygrab (SpiDEController *controller,
626
DEControllerKeyListener *key_listener,
627
void (*process_cb) (SpiDEController *controller,
628
DEControllerGrabMask *grab_mask))
629
{
630
DEControllerGrabMask grab_mask = { 0 };
631
632
grab_mask.mod_mask = key_listener->mask;
633
if (g_slist_length (key_listener->keys) == 0) /* special case means AnyKey/AllKeys */
634
{
635
grab_mask.key_val = AnyKey;
636
#ifdef SPI_DEBUG
637
fprintf (stderr, "AnyKey grab!");
638
#endif
639
process_cb (controller, &grab_mask);
640
}
641
else
642
{
643
GSList *l;
644
645
for (l = key_listener->keys; l; l = g_slist_next(l))
646
{
647
Accessibility_KeyDefinition *keydef = l->data;
648
long key_val;
649
key_val = spi_dec_plat_get_keycode (controller, keydef->keysym, keydef->keystring, FALSE, NULL);
650
if (!key_val)
651
key_val = keydef->keycode;
652
grab_mask.key_val = key_val;
653
process_cb (controller, &grab_mask);
654
}
655
}
656
}
657
658
static gboolean
659
spi_controller_register_global_keygrabs (SpiDEController *controller,
660
DEControllerKeyListener *key_listener)
661
{
662
handle_keygrab (controller, key_listener, _register_keygrab);
663
return spi_controller_update_key_grabs (controller, NULL);
664
}
665
666
static void
667
spi_controller_deregister_global_keygrabs (SpiDEController *controller,
668
DEControllerKeyListener *key_listener)
669
{
670
handle_keygrab (controller, key_listener, _deregister_keygrab);
671
spi_controller_update_key_grabs (controller, NULL);
672
}
673
674
static void
675
append_keystroke_listener (DBusMessageIter *iter, DEControllerKeyListener *listener)
676
{
677
dbus_uint32_t d_uint;
678
DBusMessageIter iter_struct, iter_subarray, iter_substruct;
679
GSList *kl;
680
681
if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
682
&iter_struct))
683
return;
684
685
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
686
&listener->listener.bus_name);
687
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
688
&listener->listener.path);
689
d_uint = listener->listener.type;
690
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
691
d_uint = listener->listener.types;
692
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
693
if (!dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_ARRAY,
694
"(iisi)", &iter_subarray))
695
{
696
dbus_message_iter_close_container (iter, &iter_struct);
697
return;
698
}
699
for (kl = listener->keys; kl; kl = kl->next)
700
{
701
Accessibility_KeyDefinition *kd = kl->data;
702
if (!dbus_message_iter_open_container (&iter_subarray, DBUS_TYPE_STRUCT,
703
NULL, &iter_substruct))
704
break;
705
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keycode);
706
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->keysym);
707
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_STRING, &kd->keystring);
708
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_INT32, &kd->unused);
709
dbus_message_iter_close_container (&iter_subarray, &iter_substruct);
710
}
711
dbus_message_iter_close_container (&iter_struct, &iter_subarray);
712
d_uint = listener->mask;
713
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
714
if (dbus_message_iter_open_container (&iter_struct, DBUS_TYPE_STRUCT,
715
NULL, &iter_substruct))
716
{
717
if (listener->mode)
718
{
719
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
720
&listener->mode->synchronous);
721
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
722
&listener->mode->preemptive);
723
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
724
&listener->mode->global);
725
}
726
else
727
{
728
dbus_bool_t dummy_val = FALSE;
729
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
730
&dummy_val);
731
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
732
&dummy_val);
733
dbus_message_iter_append_basic (&iter_substruct, DBUS_TYPE_BOOLEAN,
734
&dummy_val);
735
}
736
dbus_message_iter_close_container (&iter_struct, &iter_substruct);
737
}
738
dbus_message_iter_close_container (iter, &iter_struct);
739
}
740
741
static void
742
notify_keystroke_listener (SpiDEController *controller,
743
DEControllerKeyListener *listener,
744
gboolean enable)
745
{
746
const char *path = SPI_DBUS_PATH_DEC;
747
const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
748
const char *name = (enable
749
? "KeystrokeListenerRegistered"
750
: "KeystrokeListenerDeregistered");
751
DBusMessage *signal;
752
DBusMessageIter iter;
753
754
signal = dbus_message_new_signal (path, interface, name);
755
if (!signal)
756
return;
757
dbus_message_iter_init_append (signal, &iter);
758
append_keystroke_listener (&iter, listener);
759
dbus_connection_send (controller->bus, signal, NULL);
760
dbus_message_unref (signal);
761
}
762
763
static void
764
append_mouse_listener (DBusMessageIter *iter, DEControllerListener *listener)
765
{
766
DBusMessageIter iter_struct;
767
dbus_uint32_t d_uint;
768
769
if (!dbus_message_iter_open_container (iter, DBUS_TYPE_STRUCT, NULL,
770
&iter_struct))
771
return;
772
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING,
773
&listener->bus_name);
774
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH,
775
&listener->path);
776
d_uint = listener->types;
777
dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_UINT32, &d_uint);
778
dbus_message_iter_close_container (iter, &iter_struct);
779
}
780
781
static void
782
notify_mouse_listener (SpiDEController *controller,
783
DEControllerListener *listener,
784
gboolean enable)
785
{
786
const char *path = SPI_DBUS_PATH_DEC;
787
const char *interface = SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER;
788
const char *name = (enable
789
? "DeviceListenerRegistered"
790
: "DeviceListenerDeregistered");
791
DBusMessage *signal;
792
DBusMessageIter iter;
793
794
signal = dbus_message_new_signal (path, interface, name);
795
if (!signal)
796
return;
797
dbus_message_iter_init_append (signal, &iter);
798
append_mouse_listener (&iter, listener);
799
dbus_connection_send (controller->bus, signal, NULL);
800
dbus_message_unref (signal);
801
}
802
803
static gboolean
804
spi_controller_register_device_listener (SpiDEController *controller,
805
DEControllerListener *listener)
806
{
807
DEControllerKeyListener *key_listener;
808
gboolean retval;
809
810
switch (listener->type) {
811
case SPI_DEVICE_TYPE_KBD:
812
key_listener = (DEControllerKeyListener *) listener;
813
814
controller->key_listeners = g_list_prepend (controller->key_listeners,
815
key_listener);
816
spi_dbus_add_disconnect_match (controller->bus, key_listener->listener.bus_name);
817
if (key_listener->mode->global)
818
{
819
retval = spi_controller_register_global_keygrabs (controller, key_listener);
820
}
821
else
822
retval = TRUE;
823
if (retval)
824
notify_keystroke_listener (controller, key_listener, TRUE);
825
break;
826
case SPI_DEVICE_TYPE_MOUSE:
827
controller->mouse_listeners = g_list_prepend (controller->mouse_listeners, listener);
828
if (!have_mouse_listener)
829
{
830
have_mouse_listener = TRUE;
831
if (!have_mouse_event_listener) {
832
guint id;
833
id = g_timeout_add (100, spi_dec_poll_mouse_idle, controller);
834
g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
835
}
836
}
837
spi_dbus_add_disconnect_match (controller->bus, listener->bus_name);
838
notify_mouse_listener (controller, listener, TRUE);
839
break;
840
default:
841
break;
842
}
843
return FALSE;
844
}
845
846
static void
847
set_reply (DBusPendingCall *pending, void *user_data)
848
{
849
void **replyptr = (void **)user_data;
850
851
*replyptr = dbus_pending_call_steal_reply (pending);
852
}
853
854
static GSList *hung_processes = NULL;
855
856
static void
857
reset_hung_process (DBusPendingCall *pending, void *data)
858
{
859
DBusMessage *message = data;
860
const char *dest = dbus_message_get_destination (message);
861
GSList *l;
862
863
/* At this point we don't care about the result */
864
dbus_pending_call_unref (pending);
865
866
for (l = hung_processes; l; l = l->next)
867
{
868
if (!strcmp (l->data, dest))
869
{
870
g_free (l->data);
871
hung_processes = g_slist_remove (hung_processes, l->data);
872
break;
873
}
874
}
875
}
876
877
static gint
878
time_elapsed (struct timeval *origin)
879
{
880
struct timeval tv;
881
882
gettimeofday (&tv, NULL);
883
return (tv.tv_sec - origin->tv_sec) * 1000 + (tv.tv_usec - origin->tv_usec) / 1000;
884
}
885
886
static void
887
reset_hung_process_from_ping (DBusPendingCall *pending, void *data)
888
{
889
GSList *l;
890
891
for (l = hung_processes; l; l = l->next)
892
{
893
if (!strcmp (l->data, data))
894
{
895
g_free (l->data);
896
hung_processes = g_slist_remove (hung_processes, l->data);
897
break;
898
}
899
}
900
g_free (data);
901
dbus_pending_call_unref (pending);
902
}
903
904
static DBusMessage *
905
send_and_allow_reentry (DBusConnection *bus, DBusMessage *message, int timeout, DBusError *error)
906
{
907
DBusPendingCall *pending;
908
DBusMessage *reply = NULL;
909
struct timeval tv;
910
911
if (!dbus_connection_send_with_reply (bus, message, &pending, -1))
912
{
913
return NULL;
914
}
915
dbus_pending_call_set_notify (pending, set_reply, (void *)&reply, NULL);
916
gettimeofday (&tv, NULL);
917
while (!reply)
918
{
919
if (!dbus_connection_read_write_dispatch (bus, timeout) ||
920
time_elapsed (&tv) > timeout)
921
{
922
const char *dest = dbus_message_get_destination (message);
923
GSList *l;
924
gchar *bus_name_dup;
925
dbus_message_ref (message);
926
dbus_pending_call_set_notify (pending, reset_hung_process, message,
927
(DBusFreeFunction) dbus_message_unref);
928
message = dbus_message_new_method_call (dest, "/",
929
"org.freedesktop.DBus.Peer",
930
"Ping");
931
if (!message)
932
return NULL;
933
dbus_connection_send_with_reply (bus, message, &pending, -1);
934
dbus_message_unref (message);
935
if (!pending)
936
return NULL;
937
bus_name_dup = g_strdup (dest);
938
dbus_pending_call_set_notify (pending, reset_hung_process_from_ping,
939
bus_name_dup, NULL);
940
for (l = hung_processes; l; l = l->next)
941
if (!strcmp (l->data, dest))
942
return NULL;
943
hung_processes = g_slist_prepend (hung_processes, g_strdup (dest));
944
return NULL;
945
}
946
}
947
dbus_pending_call_unref (pending);
948
return reply;
949
}
950
static gboolean
951
Accessibility_DeviceEventListener_NotifyEvent(SpiDEController *controller,
952
SpiRegistry *registry,
953
DEControllerListener *listener,
954
const Accessibility_DeviceEvent *key_event)
955
{
956
DBusMessage *message = dbus_message_new_method_call(listener->bus_name,
957
listener->path,
958
SPI_DBUS_INTERFACE_DEVICE_EVENT_LISTENER,
959
"NotifyEvent");
960
dbus_bool_t consumed = FALSE;
961
GSList *l;
962
gboolean hung = FALSE;
963
964
for (l = hung_processes; l; l = l->next)
965
{
966
if (!strcmp (l->data, listener->bus_name))
967
{
968
dbus_message_set_no_reply (message, TRUE);
969
hung = TRUE;
970
break;
971
}
972
}
973
974
if (spi_dbus_marshal_deviceEvent(message, key_event))
975
{
976
DBusMessage *reply;
977
978
if (hung)
979
{
980
dbus_connection_send (controller->bus, message, NULL);
981
dbus_message_unref (message);
982
return FALSE;
983
}
984
985
reply = send_and_allow_reentry (controller->bus, message, 3000, NULL);
986
if (reply)
987
{
988
dbus_message_get_args(reply, NULL, DBUS_TYPE_BOOLEAN, &consumed, DBUS_TYPE_INVALID);
989
dbus_message_unref(reply);
990
}
991
}
992
dbus_message_unref(message);
993
return consumed;
994
}
995
996
gboolean
997
spi_controller_notify_mouselisteners (SpiDEController *controller,
998
const Accessibility_DeviceEvent *event)
999
{
1000
GList *l;
1001
GSList *notify = NULL, *l2;
1002
GList **listeners = &controller->mouse_listeners;
1003
gboolean is_consumed;
1004
#ifdef SPI_KEYEVENT_DEBUG
1005
gboolean found = FALSE;
1006
#endif
1007
if (!listeners)
1008
{
1009
return FALSE;
1010
}
1011
1012
for (l = *listeners; l; l = l->next)
1013
{
1014
DEControllerListener *listener = l->data;
1015
1016
if (eventtype_seq_contains_event (listener->types, event))
1017
{
1018
/* we clone (don't dup) the listener, to avoid refcount inc. */
1019
notify = g_slist_prepend (notify,
1020
spi_listener_clone (listener));
1021
#ifdef SPI_KEYEVENT_DEBUG
1022
found = TRUE;
1023
#endif
1024
}
1025
}
1026
1027
#ifdef SPI_KEYEVENT_DEBUG
1028
if (!found)
1029
{
1030
g_print ("no match for event\n");
1031
}
1032
#endif
1033
1034
is_consumed = FALSE;
1035
for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1036
{
1037
DEControllerListener *listener = l2->data;
1038
1039
is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, listener, event);
1040
1041
spi_listener_clone_free ((DEControllerListener *) l2->data);
1042
}
1043
1044
for (; l2; l2 = l2->next)
1045
{
1046
DEControllerListener *listener = l2->data;
1047
spi_listener_clone_free (listener);
1048
/* clone doesn't have its own ref, so don't use spi_device_listener_free */
1049
}
1050
1051
g_slist_free (notify);
1052
1053
#ifdef SPI_DEBUG
1054
if (is_consumed) g_message ("consumed\n");
1055
#endif
1056
return is_consumed;
1057
}
1058
1059
static gboolean
1060
key_set_contains_key (GSList *key_set,
1061
const Accessibility_DeviceEvent *key_event)
1062
{
1063
gint i;
1064
gint len;
1065
GSList *l;
1066
1067
if (!key_set)
1068
{
1069
#ifdef SPI_DEBUG
1070
g_print ("null key set!\n");
1071
#endif
1072
return TRUE;
1073
}
1074
1075
len = g_slist_length (key_set);
1076
1077
if (len == 0) /* special case, means "all keys/any key" */
1078
{
1079
#ifdef SPI_DEBUG
1080
g_print ("anykey\n");
1081
#endif
1082
return TRUE;
1083
}
1084
1085
for (l = key_set,i = 0; l; l = g_slist_next(l),i++)
1086
{
1087
Accessibility_KeyDefinition *kd = l->data;
1088
#ifdef SPI_KEYEVENT_DEBUG
1089
g_print ("key_set[%d] event = %d, code = %d; key_event %d, code %d, string %s\n",
1090
i,
1091
(int) kd->keysym,
1092
(int) kd->keycode,
1093
(int) key_event->id,
1094
(int) key_event->hw_code,
1095
key_event->event_string);
1096
#endif
1097
if (kd->keysym == (dbus_uint32_t) key_event->id)
1098
{
1099
return TRUE;
1100
}
1101
if (kd->keycode == (dbus_uint32_t) key_event->hw_code)
1102
{
1103
return TRUE;
1104
}
1105
if (key_event->event_string && key_event->event_string[0] &&
1106
!strcmp (kd->keystring, key_event->event_string))
1107
{
1108
return TRUE;
1109
}
1110
}
1111
1112
return FALSE;
1113
}
1114
1115
static gboolean
1116
eventtype_seq_contains_event (dbus_uint32_t types,
1117
const Accessibility_DeviceEvent *event)
1118
{
1119
if (types == 0) /* special case, means "all events/any event" */
1120
{
1121
return TRUE;
1122
}
1123
1124
return (types & (1 << event->type));
1125
}
1126
1127
static gboolean
1128
spi_key_event_matches_listener (const Accessibility_DeviceEvent *key_event,
1129
DEControllerKeyListener *listener,
1130
dbus_bool_t is_system_global)
1131
{
1132
if (((key_event->modifiers & 0xFF) == (dbus_uint16_t) (listener->mask & 0xFF)) &&
1133
key_set_contains_key (listener->keys, key_event) &&
1134
eventtype_seq_contains_event (listener->listener.types, key_event) &&
1135
(is_system_global == listener->mode->global))
1136
{
1137
return TRUE;
1138
}
1139
else
1140
{
1141
return FALSE;
1142
}
1143
}
1144
1145
gboolean
1146
spi_controller_notify_keylisteners (SpiDEController *controller,
1147
Accessibility_DeviceEvent *key_event,
1148
dbus_bool_t is_system_global)
1149
{
1150
GList *l;
1151
GSList *notify = NULL, *l2;
1152
GList **key_listeners = &controller->key_listeners;
1153
gboolean is_consumed;
1154
1155
if (!key_listeners)
1156
{
1157
return FALSE;
1158
}
1159
1160
/* set the NUMLOCK event mask bit if appropriate: see bug #143702 */
1161
if (key_event->modifiers & _numlock_physical_mask)
1162
key_event->modifiers |= SPI_KEYMASK_NUMLOCK;
1163
1164
for (l = *key_listeners; l; l = l->next)
1165
{
1166
DEControllerKeyListener *key_listener = l->data;
1167
1168
if (spi_key_event_matches_listener (key_event, key_listener, is_system_global))
1169
{
1170
/* we clone (don't dup) the listener, to avoid refcount inc. */
1171
notify = g_slist_prepend (notify,
1172
spi_key_listener_clone (key_listener));
1173
}
1174
}
1175
1176
#ifdef SPI_KEYEVENT_DEBUG
1177
if (!notify)
1178
{
1179
g_print ("no match for event\n");
1180
}
1181
#endif
1182
1183
is_consumed = FALSE;
1184
for (l2 = notify; l2 && !is_consumed; l2 = l2->next)
1185
{
1186
DEControllerKeyListener *key_listener = l2->data;
1187
1188
is_consumed = Accessibility_DeviceEventListener_NotifyEvent (controller, controller->registry, &key_listener->listener, key_event) &&
1189
key_listener->mode->preemptive;
1190
1191
spi_key_listener_clone_free (key_listener);
1192
}
1193
1194
for (; l2; l2 = l2->next)
1195
{
1196
DEControllerKeyListener *key_listener = l2->data;
1197
spi_key_listener_clone_free (key_listener);
1198
/* clone doesn't have its own ref, so don't use spi_dec_listener_free */
1199
}
1200
1201
g_slist_free (notify);
1202
1203
#ifdef SPI_DEBUG
1204
if (is_consumed) g_message ("consumed\n");
1205
#endif
1206
return is_consumed;
1207
}
1208
1209
gboolean
1210
spi_clear_error_state (void)
1211
{
1212
gboolean retval = spi_error_code != 0;
1213
spi_error_code = 0;
1214
return retval;
1215
}
1216
1217
gboolean
1218
spi_controller_update_key_grabs (SpiDEController *controller,
1219
Accessibility_DeviceEvent *recv)
1220
{
1221
GList *l, *next;
1222
gboolean update_failed = FALSE;
1223
long keycode = 0;
1224
1225
g_return_val_if_fail (controller != NULL, FALSE);
1226
1227
/*
1228
* masks known to work with default RH 7.1+:
1229
* 0 (no mods), LockMask, Mod1Mask, Mod2Mask, ShiftMask,
1230
* ShiftMask|LockMask, Mod1Mask|LockMask, Mod2Mask|LockMask,
1231
* ShiftMask|Mod1Mask, ShiftMask|Mod2Mask, Mod1Mask|Mod2Mask,
1232
* ShiftMask|LockMask|Mod1Mask, ShiftMask|LockMask|Mod2Mask,
1233
*
1234
* ControlMask grabs are broken, must be in use already
1235
*/
1236
if (recv)
1237
keycode = spi_dec_plat_get_keycode (controller, recv->id, NULL, TRUE, NULL);
1238
for (l = controller->keygrabs_list; l; l = next)
1239
{
1240
gboolean do_remove;
1241
gboolean re_issue_grab;
1242
DEControllerGrabMask *grab_mask = l->data;
1243
1244
next = l->next;
1245
1246
re_issue_grab = recv &&
1247
(recv->modifiers & grab_mask->mod_mask) &&
1248
(grab_mask->key_val == keycode);
1249
1250
#ifdef SPI_DEBUG
1251
fprintf (stderr, "mask=%lx %lx (%c%c) %s\n",
1252
(long int) grab_mask->key_val,
1253
(long int) grab_mask->mod_mask,
1254
grab_mask->pending_add ? '+' : '.',
1255
grab_mask->pending_remove ? '-' : '.',
1256
re_issue_grab ? "re-issue": "");
1257
#endif
1258
1259
do_remove = FALSE;
1260
1261
if (grab_mask->pending_add && grab_mask->pending_remove)
1262
{
1263
do_remove = TRUE;
1264
}
1265
else if (grab_mask->pending_remove)
1266
{
1267
#ifdef SPI_DEBUG
1268
fprintf (stderr, "ungrabbing, mask=%x\n", grab_mask->mod_mask);
1269
#endif
1270
spi_dec_plat_ungrab_key (controller,
1271
grab_mask->key_val,
1272
grab_mask->mod_mask);
1273
1274
do_remove = TRUE;
1275
}
1276
else if (grab_mask->pending_add || re_issue_grab)
1277
{
1278
1279
#ifdef SPI_DEBUG
1280
fprintf (stderr, "grab %d with mask %x\n", grab_mask->key_val, grab_mask->mod_mask);
1281
#endif
1282
update_failed = spi_dec_plat_grab_key (controller,
1283
grab_mask->key_val,
1284
grab_mask->mod_mask);
1285
if (update_failed) {
1286
while (grab_mask->ref_count > 0) --grab_mask->ref_count;
1287
do_remove = TRUE;
1288
}
1289
}
1290
1291
grab_mask->pending_add = FALSE;
1292
grab_mask->pending_remove = FALSE;
1293
1294
if (do_remove)
1295
{
1296
g_assert (grab_mask->ref_count <= 0);
1297
1298
controller->keygrabs_list = g_list_delete_link (
1299
controller->keygrabs_list, l);
1300
1301
spi_grab_mask_free (grab_mask);
1302
}
1303
1304
}
1305
1306
return ! update_failed;
1307
}
1308
1309
/*
1310
* Implemented GObject::finalize
1311
*/
1312
static void
1313
spi_device_event_controller_object_finalize (GObject *object)
1314
{
1315
SpiDEController *controller;
1316
GObjectClass *parent_class = G_OBJECT_CLASS(spi_device_event_controller_parent_class);
1317
SpiDEControllerClass *klass;
1318
1319
controller = SPI_DEVICE_EVENT_CONTROLLER (object);
1320
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (controller);
1321
#ifdef SPI_DEBUG
1322
fprintf(stderr, "spi_device_event_controller_object_finalize called\n");
1323
#endif
1324
if (klass->plat.finalize)
1325
klass->plat.finalize (controller);
1326
1327
parent_class->finalize (object);
1328
}
1329
1330
/*
1331
* DBus Accessibility::DEController::RegisterKeystrokeListener
1332
* method implementation
1333
*/
1334
static DBusMessage *
1335
impl_register_keystroke_listener (DBusConnection *bus,
1336
DBusMessage *message,
1337
void *user_data)
1338
{
1339
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1340
DEControllerKeyListener *dec_listener;
1341
DBusMessageIter iter, iter_array;
1342
const char *path;
1343
GSList *keys = NULL;
1344
dbus_int32_t mask, type;
1345
Accessibility_EventListenerMode *mode;
1346
dbus_bool_t ret;
1347
DBusMessage *reply = NULL;
1348
char *keystring;
1349
1350
if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu(bbb)") != 0)
1351
return invalid_arguments_error (message);
1352
1353
dbus_message_iter_init(message, &iter);
1354
dbus_message_iter_get_basic(&iter, &path);
1355
dbus_message_iter_next(&iter);
1356
dbus_message_iter_recurse(&iter, &iter_array);
1357
while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1358
{
1359
Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1360
if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
1361
{
1362
break;
1363
}
1364
kd->keystring = g_strdup (keystring);
1365
keys = g_slist_append(keys, kd);
1366
}
1367
dbus_message_iter_next(&iter);
1368
dbus_message_iter_get_basic(&iter, &mask);
1369
dbus_message_iter_next(&iter);
1370
dbus_message_iter_get_basic(&iter, &type);
1371
dbus_message_iter_next(&iter);
1372
mode = (Accessibility_EventListenerMode *)g_malloc(sizeof(Accessibility_EventListenerMode));
1373
if (mode)
1374
{
1375
spi_dbus_message_iter_get_struct(&iter, DBUS_TYPE_BOOLEAN, &mode->synchronous, DBUS_TYPE_BOOLEAN, &mode->preemptive, DBUS_TYPE_BOOLEAN, &mode->global, DBUS_TYPE_INVALID);
1376
}
1377
#ifdef SPI_DEBUG
1378
fprintf (stderr, "registering keystroke listener %s:%s with maskVal %lu\n",
1379
dbus_message_get_sender(message), path, (unsigned long) mask);
1380
#endif
1381
dec_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, mode);
1382
g_free (mode);
1383
ret = spi_controller_register_device_listener (
1384
controller, (DEControllerListener *) dec_listener);
1385
reply = dbus_message_new_method_return (message);
1386
if (reply)
1387
{
1388
dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1389
}
1390
return reply;
1391
}
1392
1393
/*
1394
* DBus Accessibility::DEController::RegisterDeviceEventListener
1395
* method implementation
1396
*/
1397
static DBusMessage *
1398
impl_register_device_event_listener (DBusConnection *bus,
1399
DBusMessage *message,
1400
void *user_data)
1401
{
1402
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1403
DEControllerListener *dec_listener;
1404
const char *path;
1405
dbus_int32_t event_types;
1406
dbus_bool_t ret;
1407
DBusMessage *reply = NULL;
1408
1409
if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1410
{
1411
return invalid_arguments_error (message);
1412
}
1413
dec_listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1414
ret = spi_controller_register_device_listener (
1415
controller, (DEControllerListener *) dec_listener);
1416
reply = dbus_message_new_method_return (message);
1417
if (reply)
1418
{
1419
dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1420
}
1421
return reply;
1422
}
1423
1424
typedef struct {
1425
DBusConnection *bus;
1426
DEControllerListener *listener;
1427
} RemoveListenerClosure;
1428
1429
static SpiReEntrantContinue
1430
remove_listener_cb (GList * const *list,
1431
gpointer user_data)
1432
{
1433
DEControllerListener *listener = (*list)->data;
1434
RemoveListenerClosure *ctx = user_data;
1435
1436
if (!strcmp(ctx->listener->bus_name, listener->bus_name) &&
1437
!strcmp(ctx->listener->path, listener->path))
1438
{
1439
spi_re_entrant_list_delete_link (list);
1440
spi_dbus_remove_disconnect_match (ctx->bus, listener->bus_name);
1441
spi_dec_listener_free (listener);
1442
}
1443
1444
return SPI_RE_ENTRANT_CONTINUE;
1445
}
1446
1447
static SpiReEntrantContinue
1448
copy_key_listener_cb (GList * const *list,
1449
gpointer user_data)
1450
{
1451
DEControllerKeyListener *key_listener = (*list)->data;
1452
RemoveListenerClosure *ctx = user_data;
1453
1454
if (!strcmp(ctx->listener->bus_name, key_listener->listener.bus_name) &&
1455
!strcmp(ctx->listener->path, key_listener->listener.path))
1456
{
1457
/* TODO: FIXME aggregate keys in case the listener is registered twice */
1458
DEControllerKeyListener *ctx_key_listener =
1459
(DEControllerKeyListener *) ctx->listener;
1460
keylist_free (ctx_key_listener->keys);
1461
ctx_key_listener->keys = keylist_clone(key_listener->keys);
1462
}
1463
1464
return SPI_RE_ENTRANT_CONTINUE;
1465
}
1466
1467
static void
1468
spi_controller_deregister_device_listener (SpiDEController *controller,
1469
DEControllerListener *listener)
1470
{
1471
RemoveListenerClosure ctx;
1472
1473
ctx.bus = controller->bus;
1474
ctx.listener = listener;
1475
1476
notify_mouse_listener (controller, listener, FALSE);
1477
1478
spi_re_entrant_list_foreach (&controller->mouse_listeners,
1479
remove_listener_cb, &ctx);
1480
if (!controller->mouse_listeners)
1481
have_mouse_listener = FALSE;
1482
}
1483
1484
static void
1485
spi_deregister_controller_key_listener (SpiDEController *controller,
1486
DEControllerKeyListener *key_listener)
1487
{
1488
RemoveListenerClosure ctx;
1489
1490
ctx.bus = controller->bus;
1491
ctx.listener = (DEControllerListener *) spi_key_listener_clone (key_listener);
1492
1493
notify_keystroke_listener (controller, key_listener, FALSE);
1494
1495
/* special case, copy keyset from existing controller list entry */
1496
if (g_slist_length(key_listener->keys) == 0)
1497
{
1498
spi_re_entrant_list_foreach (&controller->key_listeners,
1499
copy_key_listener_cb, &ctx);
1500
}
1501
1502
spi_controller_deregister_global_keygrabs (controller, key_listener);
1503
1504
spi_re_entrant_list_foreach (&controller->key_listeners,
1505
remove_listener_cb, &ctx);
1506
1507
spi_key_listener_clone_free ((DEControllerKeyListener *) ctx.listener);
1508
}
1509
1510
void
1511
spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
1512
{
1513
GList *l, *tmp;
1514
1515
for (l = controller->mouse_listeners; l; l = tmp)
1516
{
1517
DEControllerListener *listener = l->data;
1518
tmp = l->next;
1519
if (!strcmp (listener->bus_name, bus_name))
1520
{
1521
spi_controller_deregister_device_listener (controller, listener);
1522
tmp = controller->mouse_listeners;
1523
}
1524
}
1525
for (l = controller->key_listeners; l; l = tmp)
1526
{
1527
DEControllerKeyListener *key_listener = l->data;
1528
tmp = l->next;
1529
if (!strcmp (key_listener->listener.bus_name, bus_name))
1530
{
1531
/* TODO: untangle the below line(s) */
1532
spi_deregister_controller_key_listener (controller, key_listener);
1533
tmp = controller->key_listeners;
1534
}
1535
}
1536
}
1537
1538
/*
1539
* DBus Accessibility::DEController::DeregisterKeystrokeListener
1540
* method implementation
1541
*/
1542
static DBusMessage *
1543
impl_deregister_keystroke_listener (DBusConnection *bus,
1544
DBusMessage *message,
1545
void *user_data)
1546
{
1547
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1548
DEControllerKeyListener *key_listener;
1549
DBusMessageIter iter, iter_array;
1550
const char *path;
1551
GSList *keys = NULL;
1552
dbus_int32_t mask, type;
1553
DBusMessage *reply = NULL;
1554
1555
dbus_message_iter_init(message, &iter);
1556
if (strcmp (dbus_message_get_signature (message), "oa(iisi)uu") != 0)
1557
{
1558
g_warning ("Received DeregisterKeystrokeListener with strange signature '%s'", dbus_message_get_signature (message));
1559
return invalid_arguments_error (message);
1560
}
1561
1562
dbus_message_iter_get_basic(&iter, &path);
1563
dbus_message_iter_next(&iter);
1564
dbus_message_iter_recurse(&iter, &iter_array);
1565
while (dbus_message_iter_get_arg_type(&iter_array) != DBUS_TYPE_INVALID)
1566
{
1567
Accessibility_KeyDefinition *kd = (Accessibility_KeyDefinition *)g_malloc(sizeof(Accessibility_KeyDefinition));
1568
char *keystring;
1569
1570
if (!spi_dbus_message_iter_get_struct(&iter_array, DBUS_TYPE_INT32, &kd->keycode, DBUS_TYPE_INT32, &kd->keysym, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_INVALID))
1571
{
1572
break;
1573
}
1574
kd->keystring = g_strdup (keystring);
1575
keys = g_slist_append(keys, kd);
1576
}
1577
dbus_message_iter_next(&iter);
1578
dbus_message_iter_get_basic(&iter, &mask);
1579
dbus_message_iter_next(&iter);
1580
dbus_message_iter_get_basic(&iter, &type);
1581
dbus_message_iter_next(&iter);
1582
key_listener = spi_dec_key_listener_new (dbus_message_get_sender(message), path, keys, mask, type, NULL);
1583
#ifdef SPI_DEREGISTER_DEBUG
1584
fprintf (stderr, "deregistering keystroke listener %p with maskVal %lu\n",
1585
(void *) l, (unsigned long) mask->value);
1586
#endif
1587
1588
spi_deregister_controller_key_listener (controller, key_listener);
1589
1590
spi_dec_listener_free ((DEControllerListener *) key_listener);
1591
reply = dbus_message_new_method_return (message);
1592
return reply;
1593
}
1594
1595
/*
1596
* DBus Accessibility::DEController::DeregisterDeviceEventListener
1597
* method implementation
1598
*/
1599
static DBusMessage *
1600
impl_deregister_device_event_listener (DBusConnection *bus,
1601
DBusMessage *message,
1602
void *user_data)
1603
{
1604
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1605
DEControllerListener *listener;
1606
const char *path;
1607
dbus_int32_t event_types;
1608
DBusMessage *reply = NULL;
1609
1610
if (!dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_UINT32, &event_types, DBUS_TYPE_INVALID))
1611
{
1612
return invalid_arguments_error (message);
1613
}
1614
listener = spi_dec_listener_new (dbus_message_get_sender(message), path, event_types);
1615
spi_controller_deregister_device_listener (
1616
controller, listener);
1617
reply = dbus_message_new_method_return (message);
1618
return reply;
1619
}
1620
1621
static DBusMessage *
1622
impl_get_keystroke_listeners (DBusConnection *bus,
1623
DBusMessage *message,
1624
void *user_data)
1625
{
1626
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1627
DBusMessageIter iter, iter_array;
1628
DBusMessage *reply = dbus_message_new_method_return (message);
1629
GList *l;
1630
1631
if (!reply)
1632
return NULL;
1633
1634
dbus_message_iter_init_append (reply, &iter);
1635
dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1636
"(souua(iisi)u(bbb))", &iter_array);
1637
for (l = controller->key_listeners; l; l = l->next)
1638
{
1639
append_keystroke_listener (&iter_array, l->data);
1640
}
1641
dbus_message_iter_close_container (&iter, &iter_array);
1642
return reply;
1643
}
1644
1645
static DBusMessage *
1646
impl_get_device_event_listeners (DBusConnection *bus,
1647
DBusMessage *message,
1648
void *user_data)
1649
{
1650
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1651
DBusMessageIter iter, iter_array;
1652
GList *l;
1653
DBusMessage *reply = dbus_message_new_method_return (message);
1654
1655
if (!reply)
1656
return NULL;
1657
1658
dbus_message_iter_init_append (reply, &iter);
1659
dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
1660
"(sou)", &iter_array);
1661
for (l = controller->key_listeners; l; l = l->next)
1662
{
1663
append_mouse_listener (&iter_array, l->data);
1664
}
1665
dbus_message_iter_close_container (&iter, &iter_array);
1666
return reply;
1667
}
1668
1669
static unsigned
1670
get_modifier_state (SpiDEController *controller)
1671
{
1672
return mouse_mask_state;
1673
}
1674
1675
gboolean
1676
spi_dec_synth_keysym (SpiDEController *controller, long keysym)
1677
{
1678
long key_synth_code;
1679
unsigned int modifiers, synth_mods, lock_mods;
1680
1681
key_synth_code = spi_dec_plat_get_keycode (controller, keysym, NULL, TRUE, &synth_mods);
1682
1683
if ((key_synth_code == 0) || (synth_mods == 0xFF)) return FALSE;
1684
1685
/* TODO: set the modifiers accordingly! */
1686
modifiers = get_modifier_state (controller);
1687
/* side-effect; we may unset mousebutton modifiers here! */
1688
1689
lock_mods = 0;
1690
if (synth_mods != modifiers) {
1691
lock_mods = synth_mods & ~modifiers;
1692
spi_dec_plat_lock_modifiers (controller, lock_mods);
1693
}
1694
spi_dec_plat_synth_keycode_press (controller, key_synth_code);
1695
spi_dec_plat_synth_keycode_release (controller, key_synth_code);
1696
1697
if (synth_mods != modifiers)
1698
spi_dec_plat_unlock_modifiers (controller, lock_mods);
1699
return TRUE;
1700
}
1701
1702
1703
1704
/*
1705
* DBus Accessibility::DEController::RegisterKeystrokeListener
1706
* method implementation
1707
*/
1708
static DBusMessage *
1709
impl_generate_keyboard_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1710
{
1711
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1712
dbus_int32_t keycode;
1713
char *keystring;
1714
dbus_uint32_t synth_type;
1715
DBusMessage *reply = NULL;
1716
1717
if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &keycode, DBUS_TYPE_STRING, &keystring, DBUS_TYPE_UINT32, &synth_type, DBUS_TYPE_INVALID))
1718
{
1719
return invalid_arguments_error (message);
1720
}
1721
1722
#ifdef SPI_DEBUG
1723
fprintf (stderr, "synthesizing keystroke %ld, type %d\n",
1724
(long) keycode, (int) synth_type);
1725
#endif
1726
/* TODO: hide/wrap/remove X dependency */
1727
1728
/*
1729
* TODO: when initializing, query for XTest extension before using,
1730
* and fall back to XSendEvent() if XTest is not available.
1731
*/
1732
1733
switch (synth_type)
1734
{
1735
case Accessibility_KEY_PRESS:
1736
spi_dec_plat_synth_keycode_press (controller, keycode);
1737
break;
1738
case Accessibility_KEY_PRESSRELEASE:
1739
spi_dec_plat_synth_keycode_press (controller, keycode);
1740
case Accessibility_KEY_RELEASE:
1741
spi_dec_plat_synth_keycode_release (controller, keycode);
1742
break;
1743
case Accessibility_KEY_SYM:
1744
#ifdef SPI_XKB_DEBUG
1745
fprintf (stderr, "KeySym synthesis\n");
1746
#endif
1747
/*
1748
* note: we are using long for 'keycode'
1749
* in our arg list; it can contain either
1750
* a keycode or a keysym.
1751
*/
1752
spi_dec_synth_keysym (controller, (KeySym) keycode);
1753
break;
1754
case Accessibility_KEY_STRING:
1755
if (!spi_dec_plat_synth_keystring (controller, synth_type, keycode, keystring))
1756
fprintf (stderr, "Keystring synthesis failure, string=%s\n",
1757
keystring);
1758
break;
1759
}
1760
reply = dbus_message_new_method_return (message);
1761
return reply;
1762
}
1763
1764
/* Accessibility::DEController::GenerateMouseEvent */
1765
static DBusMessage *
1766
impl_generate_mouse_event (DBusConnection *bus, DBusMessage *message, void *user_data)
1767
{
1768
dbus_int32_t x;
1769
dbus_int32_t y;
1770
char *eventName;
1771
DBusMessage *reply = NULL;
1772
1773
if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &x, DBUS_TYPE_INT32, &y, DBUS_TYPE_STRING, &eventName, DBUS_TYPE_INVALID))
1774
{
1775
return invalid_arguments_error (message);
1776
}
1777
1778
#ifdef SPI_DEBUG
1779
fprintf (stderr, "generating mouse %s event at %ld, %ld\n",
1780
eventName, (long int) x, (long int) y);
1781
#endif
1782
spi_dec_plat_generate_mouse_event (saved_controller, x, y, eventName);
1783
reply = dbus_message_new_method_return (message);
1784
return reply;
1785
}
1786
1787
/* Accessibility::DEController::NotifyListenersSync */
1788
static DBusMessage *
1789
impl_notify_listeners_sync (DBusConnection *bus, DBusMessage *message, void *user_data)
1790
{
1791
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1792
Accessibility_DeviceEvent event;
1793
dbus_bool_t ret;
1794
DBusMessage *reply = NULL;
1795
1796
if (!spi_dbus_demarshal_deviceEvent(message, &event))
1797
{
1798
return invalid_arguments_error (message);
1799
}
1800
#ifdef SPI_DEBUG
1801
g_print ("notifylistening listeners synchronously: controller %p, event id %d\n",
1802
controller, (int) event.id);
1803
#endif
1804
ret = spi_controller_notify_keylisteners (controller,
1805
(Accessibility_DeviceEvent *)
1806
&event, FALSE) ?
1807
TRUE : FALSE;
1808
reply = dbus_message_new_method_return (message);
1809
if (reply)
1810
{
1811
dbus_message_append_args (reply, DBUS_TYPE_BOOLEAN, &ret, DBUS_TYPE_INVALID);
1812
}
1813
return reply;
1814
}
1815
1816
static DBusMessage *
1817
impl_notify_listeners_async (DBusConnection *bus, DBusMessage *message, void *user_data)
1818
{
1819
SpiDEController *controller = SPI_DEVICE_EVENT_CONTROLLER(user_data);
1820
Accessibility_DeviceEvent event;
1821
DBusMessage *reply = NULL;
1822
1823
if (!spi_dbus_demarshal_deviceEvent(message, &event))
1824
{
1825
return invalid_arguments_error (message);
1826
}
1827
#ifdef SPI_DEBUG
1828
g_print ("notifylistening listeners asynchronously: controller %p, event id %d\n",
1829
controller, (int) event.id);
1830
#endif
1831
spi_controller_notify_keylisteners (controller, (Accessibility_DeviceEvent *)
1832
&event, FALSE);
1833
reply = dbus_message_new_method_return (message);
1834
return reply;
1835
}
1836
1837
static void
1838
spi_device_event_controller_class_init (SpiDEControllerClass *klass)
1839
{
1840
GObjectClass * object_class = (GObjectClass *) klass;
1841
1842
spi_device_event_controller_parent_class = g_type_class_peek_parent (klass);
1843
1844
object_class->finalize = spi_device_event_controller_object_finalize;
1845
1846
#ifdef HAVE_X11
1847
if (g_getenv ("DISPLAY"))
1848
spi_dec_setup_x11 (klass);
1849
else
1850
#endif
1851
g_type_class_add_private (object_class, sizeof (long)); /* dummy */
1852
}
1853
1854
static void
1855
spi_device_event_controller_init (SpiDEController *device_event_controller)
1856
{
1857
SpiDEControllerClass *klass;
1858
klass = SPI_DEVICE_EVENT_CONTROLLER_GET_CLASS (device_event_controller);
1859
1860
/* TODO: shouldn't be gpointer below */
1861
device_event_controller->priv = G_TYPE_INSTANCE_GET_PRIVATE (device_event_controller,
1862
SPI_DEVICE_EVENT_CONTROLLER_TYPE,
1863
gpointer);
1864
device_event_controller->message_queue = g_queue_new ();
1865
saved_controller = device_event_controller;
1866
1867
if (klass->plat.init)
1868
klass->plat.init (device_event_controller);
1869
}
1870
1871
1872
/*---------------------------------------------------------------------------*/
1873
1874
static const char *introspection_header =
1875
"<?xml version=\"1.0\"?>\n";
1876
1877
static const char *introspection_node_element =
1878
"<node name=\"%s\">\n";
1879
1880
static const char *introspection_footer =
1881
"</node>";
1882
1883
static DBusMessage *
1884
impl_Introspect (DBusConnection * bus,
1885
DBusMessage * message, void *user_data)
1886
{
1887
GString *output;
1888
gchar *final;
1889
1890
const gchar *pathstr = SPI_DBUS_PATH_DEC;
1891
1892
DBusMessage *reply;
1893
1894
output = g_string_new(introspection_header);
1895
1896
g_string_append_printf(output, introspection_node_element, pathstr);
1897
1898
g_string_append (output, spi_org_a11y_atspi_DeviceEventController);
1899
1900
g_string_append(output, introspection_footer);
1901
final = g_string_free(output, FALSE);
1902
1903
reply = dbus_message_new_method_return (message);
1904
dbus_message_append_args(reply, DBUS_TYPE_STRING, &final, DBUS_TYPE_INVALID);
1905
1906
g_free(final);
1907
return reply;
1908
}
1909
1910
/*---------------------------------------------------------------------------*/
1911
1912
static void
1913
handle_dec_method_from_idle (DBusConnection *bus, DBusMessage *message, void *user_data)
1914
{
1915
const gchar *iface = dbus_message_get_interface (message);
1916
const gchar *member = dbus_message_get_member (message);
1917
DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1918
DBusMessage *reply = NULL;
1919
1920
if (!strcmp (iface, SPI_DBUS_INTERFACE_DEC))
1921
{
1922
result = DBUS_HANDLER_RESULT_HANDLED;
1923
if (!strcmp (member, "RegisterKeystrokeListener"))
1924
reply = impl_register_keystroke_listener (bus, message, user_data);
1925
else if (!strcmp (member, "RegisterDeviceEventListener"))
1926
reply = impl_register_device_event_listener (bus, message, user_data);
1927
else if (!strcmp (member, "DeregisterKeystrokeListener"))
1928
reply = impl_deregister_keystroke_listener (bus, message, user_data);
1929
else if (!strcmp (member, "DeregisterDeviceEventListener"))
1930
reply = impl_deregister_device_event_listener (bus, message, user_data);
1931
else if (!strcmp (member, "GetKeystrokeListeners"))
1932
reply = impl_get_keystroke_listeners (bus, message, user_data);
1933
else if (!strcmp (member, "GetDeviceEventListeners"))
1934
reply = impl_get_device_event_listeners (bus, message, user_data);
1935
else if (!strcmp (member, "GenerateKeyboardEvent"))
1936
reply = impl_generate_keyboard_event (bus, message, user_data);
1937
else if (!strcmp (member, "GenerateMouseEvent"))
1938
reply = impl_generate_mouse_event (bus, message, user_data);
1939
else if (!strcmp (member, "NotifyListenersSync"))
1940
reply = impl_notify_listeners_sync (bus, message, user_data);
1941
else if (!strcmp (member, "NotifyListenersAsync"))
1942
reply = impl_notify_listeners_async (bus, message, user_data);
1943
else
1944
result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1945
}
1946
1947
if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
1948
{
1949
result = DBUS_HANDLER_RESULT_HANDLED;
1950
if (!strcmp (member, "Introspect"))
1951
reply = impl_Introspect (bus, message, user_data);
1952
else
1953
result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1954
}
1955
1956
if (result == DBUS_HANDLER_RESULT_HANDLED)
1957
{
1958
if (!reply)
1959
{
1960
reply = dbus_message_new_method_return (message);
1961
}
1962
1963
dbus_connection_send (bus, reply, NULL);
1964
dbus_message_unref (reply);
1965
}
1966
}
1967
1968
static gboolean
1969
message_queue_dispatch (gpointer data)
1970
{
1971
saved_controller->message_queue_idle = 0;
1972
while (!g_queue_is_empty (saved_controller->message_queue))
1973
{
1974
DBusMessage *message = g_queue_pop_head (saved_controller->message_queue);
1975
data = g_queue_pop_head (saved_controller->message_queue);
1976
handle_dec_method_from_idle (saved_controller->bus, message, data);
1977
dbus_message_unref (message);
1978
}
1979
return FALSE;
1980
}
1981
1982
static DBusHandlerResult
1983
handle_dec_method (DBusConnection *bus, DBusMessage *message, void *user_data)
1984
{
1985
const gchar *iface = dbus_message_get_interface (message);
1986
const gchar *member = dbus_message_get_member (message);
1987
const gint type = dbus_message_get_type (message);
1988
1989
/* Check for basic reasons not to handle */
1990
if (type != DBUS_MESSAGE_TYPE_METHOD_CALL ||
1991
member == NULL ||
1992
iface == NULL)
1993
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1994
1995
dbus_message_ref (message);
1996
g_queue_push_tail (saved_controller->message_queue, message);
1997
g_queue_push_tail (saved_controller->message_queue, user_data);
1998
if (!saved_controller->message_queue_idle) {
1999
saved_controller->message_queue_idle = g_idle_add (message_queue_dispatch, NULL);
2000
g_source_set_name_by_id (saved_controller->message_queue_idle, "[at-spi2-core] message_queue_dispatch");
2001
}
2002
return DBUS_HANDLER_RESULT_HANDLED;
2003
}
2004
2005
static DBusObjectPathVTable dec_vtable =
2006
{
2007
NULL,
2008
&handle_dec_method,
2009
NULL, NULL, NULL, NULL
2010
};
2011
2012
SpiDEController *
2013
spi_registry_dec_new (SpiRegistry *reg, DBusConnection *bus)
2014
{
2015
SpiDEController *dec = g_object_new (SPI_DEVICE_EVENT_CONTROLLER_TYPE, NULL);
2016
2017
dec->registry = g_object_ref (reg);
2018
reg->dec = g_object_ref (dec);
2019
dec->bus = bus;
2020
2021
dbus_connection_register_object_path (bus, SPI_DBUS_PATH_DEC, &dec_vtable, dec);
2022
2023
return dec;
2024
}
2025
2026
void
2027
spi_device_event_controller_start_poll_mouse (SpiRegistry *registry)
2028
{
2029
if (!have_mouse_event_listener)
2030
{
2031
have_mouse_event_listener = TRUE;
2032
if (!have_mouse_listener) {
2033
guint id;
2034
id = g_timeout_add (100, spi_dec_poll_mouse_idle, registry->dec);
2035
g_source_set_name_by_id (id, "[at-spi2-core] spi_dec_poll_mouse_idle");
2036
}
2037
}
2038
}
2039
2040
void
2041
spi_device_event_controller_stop_poll_mouse (void)
2042
{
2043
have_mouse_event_listener = FALSE;
2044
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.1