summaryrefslogtreecommitdiff
path: root/src/bin/e_comp_wl_input.c
blob: 7aa0dcd009543a2bfc784c5e3d93763bb7f857ad (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
#define EXECUTIVE_MODE_ENABLED
#define E_COMP_WL
#include "e.h"
#include <sys/mman.h>

E_API int E_EVENT_TEXT_INPUT_PANEL_VISIBILITY_CHANGE = -1;

static void
_e_comp_wl_input_update_seat_caps(void)
{
   Eina_List *l;
   struct wl_resource *res;
   enum wl_seat_capability caps = 0;

   if (e_comp_wl->ptr.enabled)
     caps |= WL_SEAT_CAPABILITY_POINTER;
   if (e_comp_wl->kbd.enabled)
     caps |= WL_SEAT_CAPABILITY_KEYBOARD;
   if (e_comp_wl->touch.enabled)
     caps |= WL_SEAT_CAPABILITY_TOUCH;

   EINA_LIST_FOREACH(e_comp_wl->seat.resources, l, res)
        wl_seat_send_capabilities(res, caps);
}

static void
_e_comp_wl_input_cb_resource_destroy(struct wl_client *client EINA_UNUSED, struct wl_resource *resource)
{
   wl_resource_destroy(resource);
}

static void
_e_comp_wl_input_pointer_cb_cursor_set(struct wl_client *client, struct wl_resource *resource EINA_UNUSED, uint32_t serial EINA_UNUSED, struct wl_resource *surface_resource, int32_t x, int32_t y)
{
   E_Client *ec;
   Eina_Bool got_mouse = EINA_FALSE;

   E_CLIENT_FOREACH(ec)
     {
       if (e_pixmap_type_get(ec->pixmap) != E_PIXMAP_TYPE_WL) continue;
       if (!ec->comp_data->surface) continue;
       if (client != wl_resource_get_client(ec->comp_data->surface)) continue;
       if (ec->mouse.in)
         {
           got_mouse = EINA_TRUE;
           break;
         }
     }
   if (!got_mouse) return;
   if (!surface_resource)
     {
        e_pointer_object_set(e_comp->pointer, NULL, x, y);
        return;
     }
   ec = wl_resource_get_user_data(surface_resource);
   if (!ec->re_manage)
     {
        ec->re_manage = 1;
        ec->ignored = 0;

        ec->lock_focus_out = ec->layer_block = ec->visible = ec->override = 1;
        ec->icccm.title = eina_stringshare_add("noshadow");
        evas_object_pass_events_set(ec->frame, 1);
        e_client_focus_stack_set(eina_list_remove(e_client_focus_stack_get(), ec));
        EC_CHANGED(ec);
     }

   /* ignore cursor changes during resize/move I guess */
   if (e_client_action_get()) return;
   e_pointer_object_set(e_comp->pointer, ec->frame, x, y);
}

static const struct wl_pointer_interface _e_pointer_interface =
{
   _e_comp_wl_input_pointer_cb_cursor_set,
   _e_comp_wl_input_cb_resource_destroy
};

static const struct wl_keyboard_interface _e_keyboard_interface =
{
   _e_comp_wl_input_cb_resource_destroy
};

static const struct wl_touch_interface _e_touch_interface =
{
   _e_comp_wl_input_cb_resource_destroy
};


static void
_e_comp_wl_input_cb_pointer_unbind(struct wl_resource *resource)
{
   e_comp_wl->ptr.resources =
     eina_list_remove(e_comp_wl->ptr.resources, resource);
}

static void
_e_comp_wl_input_cb_pointer_get(struct wl_client *client, struct wl_resource *resource, uint32_t id)
{
   struct wl_resource *res;

   /* try to create pointer resource */
   res = wl_resource_create(client, &wl_pointer_interface,
                            wl_resource_get_version(resource), id);
   if (!res)
     {
        ERR("Could not create pointer on seat %s: %m",
            e_comp_wl->seat.name);
        wl_client_post_no_memory(client);
        return;
     }

   e_comp_wl->ptr.resources =
     eina_list_append(e_comp_wl->ptr.resources, res);
   wl_resource_set_implementation(res, &_e_pointer_interface,
                                  e_comp->wl_comp_data,
                                 _e_comp_wl_input_cb_pointer_unbind);
}

static void
_e_comp_wl_input_cb_keyboard_unbind(struct wl_resource *resource)
{
   Eina_List *l, *ll;
   struct wl_resource *res;

   e_comp_wl->kbd.resources =
     eina_list_remove(e_comp_wl->kbd.resources, resource);
   EINA_LIST_FOREACH_SAFE(e_comp_wl->kbd.focused, l, ll, res)
     if (res == resource)
       e_comp_wl->kbd.focused =
         eina_list_remove_list(e_comp_wl->kbd.focused, l);
}

void
e_comp_wl_input_keyboard_enter_send(E_Client *ec)
{
   struct wl_resource *res;
   Eina_List *l;
   uint32_t serial;

   if (!ec->comp_data->surface) return;

   if (!e_comp_wl->kbd.focused) return;

   e_comp_wl_input_keyboard_modifiers_serialize();

   serial = wl_display_next_serial(e_comp_wl->wl.disp);

   EINA_LIST_FOREACH(e_comp_wl->kbd.focused, l, res)
     {
        wl_keyboard_send_enter(res, serial, ec->comp_data->surface,
                               &e_comp_wl->kbd.keys);
        wl_keyboard_send_modifiers(res, serial,
                                   e_comp_wl->kbd.mod_depressed,
                                   e_comp_wl->kbd.mod_latched,
                                   e_comp_wl->kbd.mod_locked,
                                   e_comp_wl->kbd.mod_group);
     }
}

static void
_e_comp_wl_input_cb_keyboard_get(struct wl_client *client, struct wl_resource *resource, uint32_t id)
{
   E_Client *focused;
   struct wl_resource *res;

   /* try to create keyboard resource */
   res = wl_resource_create(client, &wl_keyboard_interface,
                            wl_resource_get_version(resource), id);
   if (!res)
     {
        ERR("Could not create keyboard on seat %s: %m",
            e_comp_wl->seat.name);
        wl_client_post_no_memory(client);
        return;
     }

   e_comp_wl->kbd.resources =
     eina_list_append(e_comp_wl->kbd.resources, res);
   wl_resource_set_implementation(res, &_e_keyboard_interface,
                                  e_comp->wl_comp_data,
                                  _e_comp_wl_input_cb_keyboard_unbind);

   /* FIXME: These values should be configurable */
   if (wl_resource_get_version(res) >= WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION)
     wl_keyboard_send_repeat_info(res, 25, 400);

   /* send current keymap */
   wl_keyboard_send_keymap(res, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
                           e_comp_wl->xkb.fd,
                           e_comp_wl->xkb.size);

   /* if the client owns the focused surface, we need to send an enter */
   focused = e_client_focused_get();
   if (!focused) return;

   if (client != wl_resource_get_client(focused->comp_data->surface)) return;
   e_comp_wl->kbd.focused = eina_list_append(e_comp_wl->kbd.focused, res);

   e_comp_wl_input_keyboard_enter_send(focused);
}

static void
_e_comp_wl_input_cb_touch_unbind(struct wl_resource *resource)
{
   e_comp_wl->touch.resources =
     eina_list_remove(e_comp_wl->touch.resources, resource);
}

static void
_e_comp_wl_input_cb_touch_get(struct wl_client *client EINA_UNUSED, struct wl_resource *resource, uint32_t id EINA_UNUSED)
{
    struct wl_resource *res;

    /* try to create pointer resource */
    res = wl_resource_create(client, &wl_touch_interface,
                             wl_resource_get_version(resource), id);
    if (!res)
      {
         ERR("Could not create touch on seat %s: %m",
             e_comp_wl->seat.name);
         wl_client_post_no_memory(client);
         return;
      }

    e_comp_wl->touch.resources =
     eina_list_append(e_comp_wl->touch.resources, res);
    wl_resource_set_implementation(res, &_e_touch_interface,
                                   e_comp->wl_comp_data,
                                  _e_comp_wl_input_cb_touch_unbind);
}

static const struct wl_seat_interface _e_seat_interface =
{
   _e_comp_wl_input_cb_pointer_get,
   _e_comp_wl_input_cb_keyboard_get,
   _e_comp_wl_input_cb_touch_get,
};

static void
_e_comp_wl_input_cb_unbind_seat(struct wl_resource *resource)
{
   e_comp_wl->seat.resources =
     eina_list_remove(e_comp_wl->seat.resources, resource);
}

static void
_e_comp_wl_input_cb_bind_seat(struct wl_client *client, void *data EINA_UNUSED, uint32_t version, uint32_t id)
{
   struct wl_resource *res;

   res = wl_resource_create(client, &wl_seat_interface, MIN(version, 4), id);
   if (!res)
     {
        ERR("Could not create seat resource: %m");
        return;
     }

   /* store version of seat interface for reuse in updating capabilities */
   e_comp_wl->seat.version = version;
   e_comp_wl->seat.resources =
     eina_list_append(e_comp_wl->seat.resources, res);

   wl_resource_set_implementation(res, &_e_seat_interface,
                                  e_comp->wl_comp_data,
                                  _e_comp_wl_input_cb_unbind_seat);

   _e_comp_wl_input_update_seat_caps();
   if (e_comp_wl->seat.version >= WL_SEAT_NAME_SINCE_VERSION)
     wl_seat_send_name(res, e_comp_wl->seat.name);
}

static int
_e_comp_wl_input_keymap_fd_get(off_t size)
{
   int fd = 0, blen = 0, len = 0;
   const char *path;
   char tmp[PATH_MAX];
   long flags;

   blen = sizeof(tmp) - 1;

   if (!(path = getenv("XDG_RUNTIME_DIR")))
     return -1;

   len = strlen(path);
   if (len < blen)
     {
        strcpy(tmp, path);
        strcat(tmp, "/e-wl-keymap-XXXXXX");
     }
   else
     return -1;

   if ((fd = mkstemp(tmp)) < 0) return -1;

   flags = fcntl(fd, F_GETFD);
   if (flags < 0)
     {
        close(fd);
        return -1;
     }

   if (fcntl(fd, F_SETFD, (flags | FD_CLOEXEC)) == -1)
     {
        close(fd);
        return -1;
     }

   if (ftruncate(fd, size) < 0)
     {
        close(fd);
        return -1;
     }

   unlink(tmp);
   return fd;
}

static void
_e_comp_wl_input_keymap_update(struct xkb_keymap *keymap)
{
   char *tmp;
   xkb_mod_mask_t latched = 0, locked = 0, group = 0;
   struct wl_resource *res;
   Eina_List *l;

   /* unreference any existing keymap */
   if (e_comp_wl->xkb.keymap)
     xkb_map_unref(e_comp_wl->xkb.keymap);

   /* unmap any existing keyboard area */
   if (e_comp_wl->xkb.area)
     munmap(e_comp_wl->xkb.area, e_comp_wl->xkb.size);
   if (e_comp_wl->xkb.fd >= 0) close(e_comp_wl->xkb.fd);

   /* unreference any existing keyboard state */
   if (e_comp_wl->xkb.state)
     {
        latched =
          xkb_state_serialize_mods(e_comp_wl->xkb.state,
                                   XKB_STATE_MODS_LATCHED);
        locked =
          xkb_state_serialize_mods(e_comp_wl->xkb.state,
                                   XKB_STATE_MODS_LOCKED);
        group =
          xkb_state_serialize_layout(e_comp_wl->xkb.state,
                                     XKB_STATE_LAYOUT_EFFECTIVE);
        xkb_state_unref(e_comp_wl->xkb.state);
     }

   /* create a new xkb state */
   e_comp_wl->xkb.state = xkb_state_new(keymap);

   if ((latched) || (locked) || (group))
     xkb_state_update_mask(e_comp_wl->xkb.state, 0,
                           latched, locked, 0, 0, group);

   /* increment keymap reference */
   e_comp_wl->xkb.keymap = keymap;

   /* fetch updated modifiers */
   e_comp_wl->kbd.mod_shift =
     xkb_map_mod_get_index(keymap, XKB_MOD_NAME_SHIFT);
   e_comp_wl->kbd.mod_caps =
     xkb_map_mod_get_index(keymap, XKB_MOD_NAME_CAPS);
   e_comp_wl->kbd.mod_ctrl =
     xkb_map_mod_get_index(keymap, XKB_MOD_NAME_CTRL);
   e_comp_wl->kbd.mod_alt =
     xkb_map_mod_get_index(keymap, XKB_MOD_NAME_ALT);
   e_comp_wl->kbd.mod_super =
     xkb_map_mod_get_index(keymap, XKB_MOD_NAME_LOGO);

   if (!(tmp = xkb_map_get_as_string(keymap)))
     {
        ERR("Could not get keymap string");
        return;
     }

   e_comp_wl->xkb.size = strlen(tmp) + 1;
   e_comp_wl->xkb.fd =
     _e_comp_wl_input_keymap_fd_get(e_comp_wl->xkb.size);
   if (e_comp_wl->xkb.fd < 0)
     {
        ERR("Could not create keymap file");
        free(tmp);
        return;
     }

   e_comp_wl->xkb.area =
     mmap(NULL, e_comp_wl->xkb.size, (PROT_READ | PROT_WRITE),
          MAP_SHARED, e_comp_wl->xkb.fd, 0);
   if (e_comp_wl->xkb.area == MAP_FAILED)
     {
        ERR("Failed to mmap keymap area: %m");
        free(tmp);
        return;
     }

   strcpy(e_comp_wl->xkb.area, tmp);
   free(tmp);

   /* send updated keymap */
   EINA_LIST_FOREACH(e_comp_wl->kbd.resources, l, res)
     wl_keyboard_send_keymap(res, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
                             e_comp_wl->xkb.fd,
                             e_comp_wl->xkb.size);

   /* update modifiers */
   e_comp_wl_input_keyboard_modifiers_update();
}

EINTERN Eina_Bool
e_comp_wl_input_init(void)
{
   /* set default seat name */
   if (!e_comp_wl->seat.name)
     e_comp_wl->seat.name = "default";

   e_comp_wl->xkb.fd = -1;

   /* create the global resource for input seat */
   e_comp_wl->seat.global =
     wl_global_create(e_comp_wl->wl.disp, &wl_seat_interface, 4,
                      e_comp->wl_comp_data, _e_comp_wl_input_cb_bind_seat);
   if (!e_comp_wl->seat.global)
     {
        ERR("Could not create global for seat: %m");
        return EINA_FALSE;
     }

   wl_array_init(&e_comp_wl->kbd.keys);

   E_EVENT_TEXT_INPUT_PANEL_VISIBILITY_CHANGE = ecore_event_type_new();

   return EINA_TRUE;
}

EINTERN void
e_comp_wl_input_shutdown(void)
{
   struct wl_resource *res;

   /* destroy pointer resources */
   EINA_LIST_FREE(e_comp_wl->ptr.resources, res)
     wl_resource_destroy(res);

   /* destroy keyboard resources */
   EINA_LIST_FREE(e_comp_wl->kbd.resources, res)
     wl_resource_destroy(res);
   e_comp_wl->kbd.resources = eina_list_free(e_comp_wl->kbd.resources);

   /* destroy touch resources */
   EINA_LIST_FREE(e_comp_wl->touch.resources, res)
     wl_resource_destroy(res);

   /* destroy e_comp_wl->kbd.keys array */
   wl_array_release(&e_comp_wl->kbd.keys);

   /* unmap any existing keyboard area */
   if (e_comp_wl->xkb.area)
     munmap(e_comp_wl->xkb.area, e_comp_wl->xkb.size);
   if (e_comp_wl->xkb.fd >= 0) close(e_comp_wl->xkb.fd);

   /* unreference any existing keyboard state */
   if (e_comp_wl->xkb.state)
     xkb_state_unref(e_comp_wl->xkb.state);

   /* unreference any existing keymap */
   if (e_comp_wl->xkb.keymap)
     xkb_map_unref(e_comp_wl->xkb.keymap);

   /* unreference any existing context */
   if (e_comp_wl->xkb.context)
     xkb_context_unref(e_comp_wl->xkb.context);

   /* destroy the global seat resource */
   if (e_comp_wl->seat.global)
     wl_global_destroy(e_comp_wl->seat.global);
   e_comp_wl->seat.global = NULL;
}

EINTERN Eina_Bool
e_comp_wl_input_pointer_check(struct wl_resource *res)
{
   return wl_resource_instance_of(res, &wl_pointer_interface,
                                  &_e_pointer_interface);
}

EINTERN Eina_Bool
e_comp_wl_input_keyboard_check(struct wl_resource *res)
{
   return wl_resource_instance_of(res, &wl_keyboard_interface,
                                  &_e_keyboard_interface);
}

EINTERN Eina_Bool
e_comp_wl_input_keyboard_modifiers_serialize(void)
{
   Eina_Bool changed = EINA_FALSE;
   xkb_mod_mask_t mod;
   xkb_layout_index_t grp;

   mod = xkb_state_serialize_mods(e_comp_wl->xkb.state,
                              XKB_STATE_DEPRESSED);
   changed |= mod != e_comp_wl->kbd.mod_depressed;
   e_comp_wl->kbd.mod_depressed = mod;

   mod = xkb_state_serialize_mods(e_comp_wl->xkb.state,
                              XKB_STATE_MODS_LATCHED);
   changed |= mod != e_comp_wl->kbd.mod_latched;
   e_comp_wl->kbd.mod_latched = mod;

   mod = xkb_state_serialize_mods(e_comp_wl->xkb.state,
                              XKB_STATE_MODS_LOCKED);
   changed |= mod != e_comp_wl->kbd.mod_locked;
   e_comp_wl->kbd.mod_locked = mod;

   grp = xkb_state_serialize_layout(e_comp_wl->xkb.state,
                                XKB_STATE_LAYOUT_EFFECTIVE);
   changed |= grp != e_comp_wl->kbd.mod_group;
   e_comp_wl->kbd.mod_group = grp;
   return changed;
}

EINTERN void
e_comp_wl_input_keyboard_modifiers_update(void)
{
   uint32_t serial;
   struct wl_resource *res;
   Eina_List *l;

   if (!e_comp_wl_input_keyboard_modifiers_serialize()) return;

   if (!e_comp_wl->kbd.focused) return;

   serial = wl_display_next_serial(e_comp_wl->wl.disp);
   EINA_LIST_FOREACH(e_comp_wl->kbd.focused, l, res)
     wl_keyboard_send_modifiers(res, serial,
                                e_comp_wl->kbd.mod_depressed,
                                e_comp_wl->kbd.mod_latched,
                                e_comp_wl->kbd.mod_locked,
                                e_comp_wl->kbd.mod_group);
}

EINTERN void
e_comp_wl_input_keyboard_state_update(uint32_t keycode, Eina_Bool pressed)
{
   enum xkb_key_direction dir;

   if (!e_comp_wl->xkb.state) return;

   if (pressed) dir = XKB_KEY_DOWN;
   else dir = XKB_KEY_UP;

   e_comp_wl->kbd.mod_changed =
     xkb_state_update_key(e_comp_wl->xkb.state, keycode + 8, dir);

   e_comp_wl_input_keyboard_modifiers_update();
}

E_API void
e_comp_wl_input_pointer_enabled_set(Eina_Bool enabled)
{
   /* check for valid compositor data */
   if (!e_comp->wl_comp_data)
     {
        ERR("No compositor data");
        return;
     }

   e_comp_wl->ptr.enabled = !!enabled;
   _e_comp_wl_input_update_seat_caps();
}

E_API void
e_comp_wl_input_keyboard_enabled_set(Eina_Bool enabled)
{
   /* check for valid compositor data */
   if (!e_comp->wl_comp_data)
     {
        ERR("No compositor data");
        return;
     }

   e_comp_wl->kbd.enabled = !!enabled;
   _e_comp_wl_input_update_seat_caps();
}

E_API void
e_comp_wl_input_keymap_set(const char *rules, const char *model, const char *layout)
{
   struct xkb_keymap *keymap;
   struct xkb_rule_names names;

   /* DBG("COMP_WL: Keymap Set: %s %s %s", rules, model, layout); */

   /* assemble xkb_rule_names so we can fetch keymap */
   memset(&names, 0, sizeof(names));
   if (rules) names.rules = strdup(rules);
   else names.rules = strdup("evdev");
   if (model) names.model = strdup(model);
   else names.model = strdup("pc105");
   if (layout) names.layout = strdup(layout);
   else names.layout = strdup("us");

   /* unreference any existing context */
   if (e_comp_wl->xkb.context)
     xkb_context_unref(e_comp_wl->xkb.context);

   /* create a new xkb context */
   e_comp_wl->xkb.context = xkb_context_new(0);

   /* fetch new keymap based on names */
   keymap = xkb_map_new_from_names(e_comp_wl->xkb.context, &names, 0);
   if (keymap)
     {
        /* update compositor keymap */
        _e_comp_wl_input_keymap_update(keymap);
     }

   /* cleanup */
   free((char *)names.rules);
   free((char *)names.model);
   free((char *)names.layout);
}

E_API void
e_comp_wl_input_touch_enabled_set(Eina_Bool enabled)
{
   /* check for valid compositor data */
   if (!e_comp->wl_comp_data)
     {
        ERR("No compositor data");
        return;
     }

   e_comp_wl->touch.enabled = !!enabled;
   _e_comp_wl_input_update_seat_caps();
}

EINTERN Eina_Bool
e_comp_wl_input_touch_check(struct wl_resource *res)
{
   return wl_resource_instance_of(res, &wl_touch_interface,
                                  &_e_touch_interface);
}