aboutsummaryrefslogtreecommitdiffstats
path: root/sway/input/seat.c
blob: 1ea364666b350c61908cf5f7ce6b3c74028943af (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
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
#define _XOPEN_SOURCE 700
#define _POSIX_C_SOURCE 199309L
#include <assert.h>
#include <strings.h>
#include <time.h>
#include <wlr/types/wlr_cursor.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include "log.h"
#include "sway/debug.h"
#include "sway/desktop.h"
#include "sway/input/cursor.h"
#include "sway/input/input-manager.h"
#include "sway/input/keyboard.h"
#include "sway/input/seat.h"
#include "sway/ipc-server.h"
#include "sway/layers.h"
#include "sway/output.h"
#include "sway/tree/arrange.h"
#include "sway/tree/container.h"
#include "sway/tree/container.h"
#include "sway/tree/view.h"
#include "sway/tree/workspace.h"
#include "sway/tree/workspace.h"

static void seat_device_destroy(struct sway_seat_device *seat_device) {
	if (!seat_device) {
		return;
	}

	sway_keyboard_destroy(seat_device->keyboard);
	wlr_cursor_detach_input_device(seat_device->sway_seat->cursor->cursor,
		seat_device->input_device->wlr_device);
	wl_list_remove(&seat_device->link);
	free(seat_device);
}

void seat_destroy(struct sway_seat *seat) {
	struct sway_seat_device *seat_device, *next;
	wl_list_for_each_safe(seat_device, next, &seat->devices, link) {
		seat_device_destroy(seat_device);
	}
	sway_cursor_destroy(seat->cursor);
	wl_list_remove(&seat->new_container.link);
	wl_list_remove(&seat->new_drag_icon.link);
	wl_list_remove(&seat->link);
	wlr_seat_destroy(seat->wlr_seat);
}

static struct sway_seat_container *seat_container_from_container(
		struct sway_seat *seat, struct sway_container *con);

static void seat_container_destroy(struct sway_seat_container *seat_con) {
	struct sway_container *con = seat_con->container;
	struct sway_container *child = NULL;

	if (con->children != NULL) {
		for (int i = 0; i < con->children->length; ++i) {
			child = con->children->items[i];
			struct sway_seat_container *seat_child =
				seat_container_from_container(seat_con->seat, child);
			seat_container_destroy(seat_child);
		}
	}

	wl_list_remove(&seat_con->destroy.link);
	wl_list_remove(&seat_con->link);
	free(seat_con);
}

/**
 * Activate all views within this container recursively.
 */
static void seat_send_activate(struct sway_container *con,
		struct sway_seat *seat) {
	if (con->type == C_VIEW) {
		if (!seat_is_input_allowed(seat, con->sway_view->surface)) {
			wlr_log(L_DEBUG, "Refusing to set focus, input is inhibited");
			return;
		}
		view_set_activated(con->sway_view, true);
	} else {
		for (int i = 0; i < con->children->length; ++i) {
			struct sway_container *child = con->children->items[i];
			seat_send_activate(child, seat);
		}
	}
}

/**
 * If con is a view, set it as active and enable keyboard input.
 * If con is a container, set all child views as active and don't enable
 * keyboard input on any.
 */
static void seat_send_focus(struct sway_container *con,
		struct sway_seat *seat) {
	seat_send_activate(con, seat);

	if (con->type == C_VIEW
			&& seat_is_input_allowed(seat, con->sway_view->surface)) {
		if (con->sway_view->type == SWAY_VIEW_XWAYLAND) {
			struct wlr_xwayland *xwayland = seat->input->server->xwayland;
			wlr_xwayland_set_seat(xwayland, seat->wlr_seat);
		}
		struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat->wlr_seat);
		if (keyboard) {
			wlr_seat_keyboard_notify_enter(seat->wlr_seat,
					con->sway_view->surface, keyboard->keycodes,
					keyboard->num_keycodes, &keyboard->modifiers);
		} else {
			wlr_seat_keyboard_notify_enter(
					seat->wlr_seat, con->sway_view->surface, NULL, 0, NULL);
		}
	}
}

static struct sway_container *seat_get_focus_by_type(struct sway_seat *seat,
		struct sway_container *container, enum sway_container_type type) {
	if (container->type == C_VIEW) {
		return container;
	}

	struct sway_container *floating = container->type == C_WORKSPACE ?
		container->sway_workspace->floating : NULL;
	if (container->children->length == 0 &&
			(!floating || floating->children->length == 0)) {
		return container;
	}

	struct sway_seat_container *current = NULL;
	wl_list_for_each(current, &seat->focus_stack, link) {
		if (current->container->type != type && type != C_TYPES) {
			continue;
		}

		if (container_has_child(container, current->container)) {
			return current->container;
		}
		if (floating && container_has_child(floating, current->container)) {
			return current->container;
		}
	}

	return NULL;
}

void seat_focus_inactive_children_for_each(struct sway_seat *seat,
		struct sway_container *container,
		void (*f)(struct sway_container *container, void *data), void *data) {
	struct sway_seat_container *current = NULL;
	wl_list_for_each(current, &seat->focus_stack, link) {
		if (current->container->parent == NULL) {
			continue;
		}
		if (current->container->parent == container) {
			f(current->container, data);
		}
	}
}

struct sway_container *seat_get_focus_inactive_view(struct sway_seat *seat,
		struct sway_container *container) {
	return seat_get_focus_by_type(seat, container, C_VIEW);
}

static void handle_seat_container_destroy(struct wl_listener *listener,
		void *data) {
	struct sway_seat_container *seat_con =
		wl_container_of(listener, seat_con, destroy);
	struct sway_seat *seat = seat_con->seat;
	struct sway_container *con = seat_con->container;
	struct sway_container *parent = con->parent;
	struct sway_container *focus = seat_get_focus(seat);

	bool set_focus =
		focus != NULL &&
		(focus == con || container_has_child(con, focus)) &&
		con->type != C_WORKSPACE;

	seat_container_destroy(seat_con);

	if (set_focus) {
		struct sway_container *next_focus = NULL;
		while (next_focus == NULL) {
			next_focus = seat_get_focus_by_type(seat, parent, C_VIEW);

			if (next_focus == NULL && parent->type == C_WORKSPACE) {
				next_focus = parent;
				break;
			}

			parent = parent->parent;
		}

		// the structure change might have caused it to move up to the top of
		// the focus stack without sending focus notifications to the view
		if (seat_get_focus(seat) == next_focus) {
			seat_send_focus(next_focus, seat);
		} else {
			seat_set_focus(seat, next_focus);
		}
	}
}

static struct sway_seat_container *seat_container_from_container(
		struct sway_seat *seat, struct sway_container *con) {
	if (con->type == C_ROOT || con->type == C_OUTPUT) {
		// these don't get seat containers ever
		return NULL;
	}

	struct sway_seat_container *seat_con = NULL;
	wl_list_for_each(seat_con, &seat->focus_stack, link) {
		if (seat_con->container == con) {
			return seat_con;
		}
	}

	seat_con = calloc(1, sizeof(struct sway_seat_container));
	if (seat_con == NULL) {
		wlr_log(L_ERROR, "could not allocate seat container");
		return NULL;
	}

	seat_con->container = con;
	seat_con->seat = seat;
	wl_list_insert(seat->focus_stack.prev, &seat_con->link);
	wl_signal_add(&con->events.destroy, &seat_con->destroy);
	seat_con->destroy.notify = handle_seat_container_destroy;

	return seat_con;
}

static void handle_new_container(struct wl_listener *listener, void *data) {
	struct sway_seat *seat = wl_container_of(listener, seat, new_container);
	struct sway_container *con = data;
	seat_container_from_container(seat, con);
}

static void drag_icon_damage_whole(struct sway_drag_icon *icon) {
	if (!icon->wlr_drag_icon->mapped) {
		return;
	}
	desktop_damage_surface(icon->wlr_drag_icon->surface, icon->x, icon->y, true);
}

void drag_icon_update_position(struct sway_drag_icon *icon) {
	drag_icon_damage_whole(icon);

	struct wlr_drag_icon *wlr_icon = icon->wlr_drag_icon;
	struct sway_seat *seat = icon->seat;
	struct wlr_cursor *cursor = seat->cursor->cursor;
	if (wlr_icon->is_pointer) {
		icon->x = cursor->x + wlr_icon->sx;
		icon->y = cursor->y + wlr_icon->sy;
	} else {
		struct wlr_touch_point *point =
			wlr_seat_touch_get_point(seat->wlr_seat, wlr_icon->touch_id);
		if (point == NULL) {
			return;
		}
		icon->x = seat->touch_x + wlr_icon->sx;
		icon->y = seat->touch_y + wlr_icon->sy;
	}

	drag_icon_damage_whole(icon);
}

static void drag_icon_handle_surface_commit(struct wl_listener *listener,
		void *data) {
	struct sway_drag_icon *icon =
		wl_container_of(listener, icon, surface_commit);
	drag_icon_update_position(icon);
}

static void drag_icon_handle_map(struct wl_listener *listener, void *data) {
	struct sway_drag_icon *icon = wl_container_of(listener, icon, map);
	drag_icon_damage_whole(icon);
}

static void drag_icon_handle_unmap(struct wl_listener *listener, void *data) {
	struct sway_drag_icon *icon = wl_container_of(listener, icon, unmap);
	drag_icon_damage_whole(icon);
}

static void drag_icon_handle_destroy(struct wl_listener *listener,
		void *data) {
	struct sway_drag_icon *icon = wl_container_of(listener, icon, destroy);
	icon->wlr_drag_icon->data = NULL;
	wl_list_remove(&icon->link);
	wl_list_remove(&icon->surface_commit.link);
	wl_list_remove(&icon->unmap.link);
	wl_list_remove(&icon->destroy.link);
	free(icon);
}

static void handle_new_drag_icon(struct wl_listener *listener, void *data) {
	struct sway_seat *seat = wl_container_of(listener, seat, new_drag_icon);
	struct wlr_drag_icon *wlr_drag_icon = data;

	struct sway_drag_icon *icon = calloc(1, sizeof(struct sway_drag_icon));
	if (icon == NULL) {
		wlr_log(L_ERROR, "Allocation failed");
		return;
	}
	icon->seat = seat;
	icon->wlr_drag_icon = wlr_drag_icon;
	wlr_drag_icon->data = icon;

	icon->surface_commit.notify = drag_icon_handle_surface_commit;
	wl_signal_add(&wlr_drag_icon->surface->events.commit, &icon->surface_commit);
	icon->unmap.notify = drag_icon_handle_unmap;
	wl_signal_add(&wlr_drag_icon->events.unmap, &icon->unmap);
	icon->map.notify = drag_icon_handle_map;
	wl_signal_add(&wlr_drag_icon->events.map, &icon->map);
	icon->destroy.notify = drag_icon_handle_destroy;
	wl_signal_add(&wlr_drag_icon->events.destroy, &icon->destroy);

	wl_list_insert(&root_container.sway_root->drag_icons, &icon->link);

	drag_icon_update_position(icon);
}

static void collect_focus_iter(struct sway_container *con, void *data) {
	struct sway_seat *seat = data;
	if (con->type > C_WORKSPACE) {
		return;
	}
	struct sway_seat_container *seat_con =
		seat_container_from_container(seat, con);
	if (!seat_con) {
		return;
	}
	wl_list_remove(&seat_con->link);
	wl_list_insert(&seat->focus_stack, &seat_con->link);
}

struct sway_seat *seat_create(struct sway_input_manager *input,
		const char *seat_name) {
	struct sway_seat *seat = calloc(1, sizeof(struct sway_seat));
	if (!seat) {
		return NULL;
	}

	seat->wlr_seat = wlr_seat_create(input->server->wl_display, seat_name);
	if (!sway_assert(seat->wlr_seat, "could not allocate seat")) {
		free(seat);
		return NULL;
	}

	seat->cursor = sway_cursor_create(seat);
	if (!seat->cursor) {
		wlr_seat_destroy(seat->wlr_seat);
		free(seat);
		return NULL;
	}

	// init the focus stack
	wl_list_init(&seat->focus_stack);

	container_for_each_descendant_dfs(&root_container,
		collect_focus_iter, seat);

	wl_signal_add(&root_container.sway_root->events.new_container,
		&seat->new_container);
	seat->new_container.notify = handle_new_container;

	wl_signal_add(&seat->wlr_seat->events.new_drag_icon, &seat->new_drag_icon);
	seat->new_drag_icon.notify = handle_new_drag_icon;

	seat->input = input;
	wl_list_init(&seat->devices);

	wlr_seat_set_capabilities(seat->wlr_seat,
		WL_SEAT_CAPABILITY_KEYBOARD |
		WL_SEAT_CAPABILITY_POINTER |
		WL_SEAT_CAPABILITY_TOUCH);

	seat_configure_xcursor(seat);

	wl_list_insert(&input->seats, &seat->link);

	return seat;
}

static void seat_apply_input_config(struct sway_seat *seat,
		struct sway_seat_device *sway_device) {
	const char *mapped_to_output = NULL;

	struct input_config *ic = input_device_get_config(
			sway_device->input_device);
	if (ic != NULL) {
		wlr_log(L_DEBUG, "Applying input config to %s",
			sway_device->input_device->identifier);

		mapped_to_output = ic->mapped_to_output;
	}

	if (mapped_to_output == NULL) {
		mapped_to_output = sway_device->input_device->wlr_device->output_name;
	}
	if (mapped_to_output != NULL) {
		wlr_log(L_DEBUG, "Mapping input device %s to output %s",
			sway_device->input_device->identifier, mapped_to_output);
		struct sway_container *output = NULL;
		for (int i = 0; i < root_container.children->length; ++i) {
			struct sway_container *_output = root_container.children->items[i];
			if (strcasecmp(_output->name, mapped_to_output) == 0) {
				output = _output;
				break;
			}
		}
		if (output) {
			wlr_cursor_map_input_to_output(seat->cursor->cursor,
				sway_device->input_device->wlr_device,
				output->sway_output->wlr_output);
			wlr_log(L_DEBUG, "Mapped to output %s", output->name);
		}
	}
}

static void seat_configure_pointer(struct sway_seat *seat,
		struct sway_seat_device *sway_device) {
	wlr_cursor_attach_input_device(seat->cursor->cursor,
		sway_device->input_device->wlr_device);
	seat_apply_input_config(seat, sway_device);
}

static void seat_configure_keyboard(struct sway_seat *seat,
		struct sway_seat_device *seat_device) {
	if (!seat_device->keyboard) {
		sway_keyboard_create(seat, seat_device);
	}
	struct wlr_keyboard *wlr_keyboard =
		seat_device->input_device->wlr_device->keyboard;
	sway_keyboard_configure(seat_device->keyboard);
	wlr_seat_set_keyboard(seat->wlr_seat,
			seat_device->input_device->wlr_device);
	struct sway_container *focus = seat_get_focus(seat);
	if (focus && focus->type == C_VIEW) {
		// force notify reenter to pick up the new configuration
		wlr_seat_keyboard_clear_focus(seat->wlr_seat);
		wlr_seat_keyboard_notify_enter(seat->wlr_seat,
				focus->sway_view->surface, wlr_keyboard->keycodes,
				wlr_keyboard->num_keycodes, &wlr_keyboard->modifiers);
	}
}

static void seat_configure_touch(struct sway_seat *seat,
		struct sway_seat_device *sway_device) {
	wlr_cursor_attach_input_device(seat->cursor->cursor,
		sway_device->input_device->wlr_device);
	seat_apply_input_config(seat, sway_device);
}

static void seat_configure_tablet_tool(struct sway_seat *seat,
		struct sway_seat_device *sway_device) {
	wlr_cursor_attach_input_device(seat->cursor->cursor,
		sway_device->input_device->wlr_device);
	seat_apply_input_config(seat, sway_device);
}

static struct sway_seat_device *seat_get_device(struct sway_seat *seat,
		struct sway_input_device *input_device) {
	struct sway_seat_device *seat_device = NULL;
	wl_list_for_each(seat_device, &seat->devices, link) {
		if (seat_device->input_device == input_device) {
			return seat_device;
		}
	}

	return NULL;
}

void seat_configure_device(struct sway_seat *seat,
		struct sway_input_device *input_device) {
	struct sway_seat_device *seat_device =
		seat_get_device(seat, input_device);
	if (!seat_device) {
		return;
	}

	switch (input_device->wlr_device->type) {
		case WLR_INPUT_DEVICE_POINTER:
			seat_configure_pointer(seat, seat_device);
			break;
		case WLR_INPUT_DEVICE_KEYBOARD:
			seat_configure_keyboard(seat, seat_device);
			break;
		case WLR_INPUT_DEVICE_TOUCH:
			seat_configure_touch(seat, seat_device);
			break;
		case WLR_INPUT_DEVICE_TABLET_TOOL:
			seat_configure_tablet_tool(seat, seat_device);
			break;
		case WLR_INPUT_DEVICE_TABLET_PAD:
			wlr_log(L_DEBUG, "TODO: configure tablet pad");
			break;
	}
}

void seat_add_device(struct sway_seat *seat,
		struct sway_input_device *input_device) {
	if (seat_get_device(seat, input_device)) {
		seat_configure_device(seat, input_device);
		return;
	}

	struct sway_seat_device *seat_device =
		calloc(1, sizeof(struct sway_seat_device));
	if (!seat_device) {
		wlr_log(L_DEBUG, "could not allocate seat device");
		return;
	}

	wlr_log(L_DEBUG, "adding device %s to seat %s",
		input_device->identifier, seat->wlr_seat->name);

	seat_device->sway_seat = seat;
	seat_device->input_device = input_device;
	wl_list_insert(&seat->devices, &seat_device->link);

	seat_configure_device(seat, input_device);
}

void seat_remove_device(struct sway_seat *seat,
		struct sway_input_device *input_device) {
	struct sway_seat_device *seat_device =
		seat_get_device(seat, input_device);

	if (!seat_device) {
		return;
	}

	wlr_log(L_DEBUG, "removing device %s from seat %s",
		input_device->identifier, seat->wlr_seat->name);

	seat_device_destroy(seat_device);
}

void seat_configure_xcursor(struct sway_seat *seat) {
	// TODO configure theme and size
	const char *cursor_theme = NULL;

	if (!seat->cursor->xcursor_manager) {
		seat->cursor->xcursor_manager =
			wlr_xcursor_manager_create(cursor_theme, 24);
		if (sway_assert(seat->cursor->xcursor_manager,
					"Cannot create XCursor manager for theme %s",
					cursor_theme)) {
			return;
		}
	}

	for (int i = 0; i < root_container.children->length; ++i) {
		struct sway_container *output_container =
			root_container.children->items[i];
		struct wlr_output *output =
			output_container->sway_output->wlr_output;
		bool result =
			wlr_xcursor_manager_load(seat->cursor->xcursor_manager,
				output->scale);

		sway_assert(!result,
			"Cannot load xcursor theme for output '%s' with scale %f",
			// TODO: Fractional scaling
			output->name, (double)output->scale);
	}

	wlr_xcursor_manager_set_cursor_image(seat->cursor->xcursor_manager,
		"left_ptr", seat->cursor->cursor);
	wlr_cursor_warp(seat->cursor->cursor, NULL, seat->cursor->cursor->x,
		seat->cursor->cursor->y);
}

bool seat_is_input_allowed(struct sway_seat *seat,
		struct wlr_surface *surface) {
	struct wl_client *client = wl_resource_get_client(surface->resource);
	return !seat->exclusive_client || seat->exclusive_client == client;
}

// Unfocus the container and any children (eg. when leaving `focus parent`)
static void seat_send_unfocus(struct sway_container *container,
		struct sway_seat *seat) {
	if (container->type == C_VIEW) {
		wlr_seat_keyboard_clear_focus(seat->wlr_seat);
		view_set_activated(container->sway_view, false);
	} else {
		for (int i = 0; i < container->children->length; ++i) {
			struct sway_container *child = container->children->items[i];
			seat_send_unfocus(child, seat);
		}
	}
}

void seat_set_focus_warp(struct sway_seat *seat,
		struct sway_container *container, bool warp) {
	if (seat->focused_layer) {
		return;
	}

	struct sway_container *last_focus = seat_get_focus(seat);
	if (container && last_focus == container) {
		return;
	}

	struct sway_container *last_workspace = last_focus;
	if (last_workspace && last_workspace->type != C_WORKSPACE) {
		last_workspace = container_parent(last_workspace, C_WORKSPACE);
	}
	struct sway_container *new_workspace = container;
	if (new_workspace && new_workspace->type != C_WORKSPACE) {
		new_workspace = container_parent(new_workspace, C_WORKSPACE);
	}

	if (last_workspace && last_workspace == new_workspace
			&& last_workspace->sway_workspace->fullscreen
			&& !container->sway_view->is_fullscreen) {
		return;
	}

	struct sway_container *last_output = last_focus;
	if (last_output && last_output->type != C_OUTPUT) {
		last_output = container_parent(last_output, C_OUTPUT);
	}
	struct sway_container *new_output = container;
	if (new_output && new_output->type != C_OUTPUT) {
		new_output = container_parent(new_output, C_OUTPUT);
	}

	// find new output's old workspace, which might have to be removed if empty
	struct sway_container *new_output_last_ws = NULL;
	if (last_output && new_output && last_output != new_output) {
		new_output_last_ws =
			seat_get_focus_by_type(seat, new_output, C_WORKSPACE);
	}

	if (container && container->parent) {
		struct sway_seat_container *seat_con =
			seat_container_from_container(seat, container);
		if (seat_con == NULL) {
			return;
		}

		// put all the ancestors of this container on top of the focus stack
		struct sway_seat_container *parent =
			seat_container_from_container(seat, container->parent);
		while (parent) {
			wl_list_remove(&parent->link);
			wl_list_insert(&seat->focus_stack, &parent->link);

			parent =
				seat_container_from_container(seat,
					parent->container->parent);
		}

		wl_list_remove(&seat_con->link);
		wl_list_insert(&seat->focus_stack, &seat_con->link);

		if (last_focus) {
			seat_send_unfocus(last_focus, seat);
		}

		seat_send_focus(container, seat);
		container_damage_whole(container);
	}

	// clean up unfocused empty workspace on new output
	if (new_output_last_ws) {
		if (!workspace_is_visible(new_output_last_ws)
				&& workspace_is_empty(new_output_last_ws)) {
			if (last_workspace == new_output_last_ws) {
				last_focus = NULL;
				last_workspace = NULL;
			}
			container_destroy(new_output_last_ws);
		}
	}

	if (last_focus) {
		if (last_workspace) {
			ipc_event_workspace(last_workspace, container, "focus");
			if (!workspace_is_visible(last_workspace)
					&& workspace_is_empty(last_workspace)) {
				if (last_workspace == last_focus) {
					last_focus = NULL;
				}
				container_destroy(last_workspace);
			}
		}

		if (config->mouse_warping && warp) {
			if (new_output && last_output && new_output != last_output) {
				double x = container->x + container->width / 2.0;
				double y = container->y + container->height / 2.0;
				struct wlr_output *wlr_output =
					new_output->sway_output->wlr_output;
				if (!wlr_output_layout_contains_point(
						root_container.sway_root->output_layout,
						wlr_output, seat->cursor->cursor->x,
						seat->cursor->cursor->y)) {
					wlr_cursor_warp(seat->cursor->cursor, NULL, x, y);
					cursor_send_pointer_motion(seat->cursor, 0, true);
				}
			}
		}
	}

	if (last_focus) {
		container_damage_whole(last_focus);
	}

	if (last_workspace && last_workspace != new_workspace) {
		cursor_send_pointer_motion(seat->cursor, 0, true);
	}

	seat->has_focus = (container != NULL);

	update_debug_tree();
}

void seat_set_focus(struct sway_seat *seat,
		struct sway_container *container) {
	seat_set_focus_warp(seat, container, true);
}

void seat_set_focus_surface(struct sway_seat *seat,
		struct wlr_surface *surface) {
	if (seat->focused_layer != NULL) {
		return;
	}
	if (seat->has_focus) {
		struct sway_container *focus = seat_get_focus(seat);
		seat_send_unfocus(focus, seat);
		seat->has_focus = false;
	}
	struct wlr_keyboard *keyboard =
		wlr_seat_get_keyboard(seat->wlr_seat);
	if (keyboard) {
		wlr_seat_keyboard_notify_enter(seat->wlr_seat, surface,
			keyboard->keycodes, keyboard->num_keycodes, &keyboard->modifiers);
	} else {
		wlr_seat_keyboard_notify_enter(seat->wlr_seat, surface, NULL, 0, NULL);
	}
}

void seat_set_focus_layer(struct sway_seat *seat,
		struct wlr_layer_surface *layer) {
	if (!layer && seat->focused_layer) {
		seat->focused_layer = NULL;
		struct sway_container *previous =
			seat_get_focus_inactive(seat, &root_container);
		if (previous) {
			wlr_log(L_DEBUG, "Returning focus to %p %s '%s'", previous,
					container_type_to_str(previous->type), previous->name);
			// Hack to get seat to re-focus the return value of get_focus
			seat_set_focus(seat, previous->parent);
			seat_set_focus(seat, previous);
		}
		return;
	} else if (!layer || seat->focused_layer == layer) {
		return;
	}
	seat_set_focus_surface(seat, layer->surface);
	if (layer->layer >= ZWLR_LAYER_SHELL_V1_LAYER_TOP) {
		seat->focused_layer = layer;
	}
}

void seat_set_exclusive_client(struct sway_seat *seat,
		struct wl_client *client) {
	if (!client) {
		seat->exclusive_client = client;
		// Triggers a refocus of the topmost surface layer if necessary
		// TODO: Make layer surface focus per-output based on cursor position
		for (int i = 0; i < root_container.children->length; ++i) {
			struct sway_container *output = root_container.children->items[i];
			if (!sway_assert(output->type == C_OUTPUT,
						"root container has non-output child")) {
				continue;
			}
			arrange_layers(output->sway_output);
		}
		return;
	}
	if (seat->focused_layer) {
		if (wl_resource_get_client(seat->focused_layer->resource) != client) {
			seat_set_focus_layer(seat, NULL);
		}
	}
	if (seat->has_focus) {
		struct sway_container *focus = seat_get_focus(seat);
		if (focus->type == C_VIEW && wl_resource_get_client(
					focus->sway_view->surface->resource) != client) {
			seat_set_focus(seat, NULL);
		}
	}
	if (seat->wlr_seat->pointer_state.focused_client) {
		if (seat->wlr_seat->pointer_state.focused_client->client != client) {
			wlr_seat_pointer_clear_focus(seat->wlr_seat);
		}
	}
	struct timespec now;
	clock_gettime(CLOCK_MONOTONIC, &now);
	struct wlr_touch_point *point;
	wl_list_for_each(point, &seat->wlr_seat->touch_state.touch_points, link) {
		if (point->client->client != client) {
			wlr_seat_touch_point_clear_focus(seat->wlr_seat,
					now.tv_nsec / 1000, point->touch_id);
		}
	}
	seat->exclusive_client = client;
}

struct sway_container *seat_get_focus_inactive(struct sway_seat *seat,
		struct sway_container *container) {
	return seat_get_focus_by_type(seat, container, C_TYPES);
}

struct sway_container *seat_get_active_child(struct sway_seat *seat,
		struct sway_container *container) {
	struct sway_seat_container *current = NULL;
	wl_list_for_each(current, &seat->focus_stack, link) {
		if (current->container->parent == container &&
				current->container->layout != L_FLOATING) {
			return current->container;
		}
	}
	return NULL;
}

struct sway_container *seat_get_focus(struct sway_seat *seat) {
	if (!seat->has_focus) {
		return NULL;
	}
	return seat_get_focus_inactive(seat, &root_container);
}

void seat_apply_config(struct sway_seat *seat,
		struct seat_config *seat_config) {
	struct sway_seat_device *seat_device = NULL;

	if (!seat_config) {
		return;
	}

	wl_list_for_each(seat_device, &seat->devices, link) {
		seat_configure_device(seat, seat_device->input_device);
	}
}

struct seat_config *seat_get_config(struct sway_seat *seat) {
	struct seat_config *seat_config = NULL;
	for (int i = 0; i < config->seat_configs->length; ++i ) {
		seat_config = config->seat_configs->items[i];
		if (strcmp(seat->wlr_seat->name, seat_config->name) == 0) {
			return seat_config;
		}
	}

	return NULL;
}