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
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
content / browser / renderer_host / render_widget_host_impl.h [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
#define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
#include <stddef.h>
#include <stdint.h>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "base/callback_list.h"
#include "base/containers/flat_map.h"
#include "base/containers/flat_set.h"
#include "base/functional/callback.h"
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/raw_ref.h"
#include "base/memory/safe_ref.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/process/kill.h"
#include "base/scoped_observation_traits.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "base/types/pass_key.h"
#include "build/build_config.h"
#include "cc/mojom/render_frame_metadata.mojom.h"
#include "components/input/event_with_latency_info.h"
#include "components/input/input_disposition_handler.h"
#include "components/input/input_router_impl.h"
#include "components/input/render_input_router.h"
#include "components/input/render_input_router_client.h"
#include "components/input/render_input_router_delegate.h"
#include "components/input/touch_emulator_client.h"
#include "components/viz/common/surfaces/frame_sink_id.h"
#include "content/browser/renderer_host/agent_scheduling_group_host.h"
#include "content/browser/renderer_host/frame_token_message_queue.h"
#include "content/browser/renderer_host/input/touch_emulator_impl.h"
#include "content/browser/renderer_host/render_frame_metadata_provider_impl.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "content/browser/scheduler/browser_ui_thread_scheduler.h"
#include "content/common/content_export.h"
#include "content/common/frame.mojom-forward.h"
#include "content/common/input/synthetic_gesture.h"
#include "content/common/input/synthetic_gesture_controller.h"
#include "content/public/browser/render_process_host_observer.h"
#include "content/public/browser/render_process_host_priority_client.h"
#include "content/public/browser/render_widget_host.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/viz/public/mojom/compositing/compositor_frame_sink.mojom-forward.h"
#include "third_party/blink/public/mojom/input/input_event_result.mojom-shared.h"
#include "third_party/blink/public/mojom/input/input_handler.mojom.h"
#include "third_party/blink/public/mojom/input/pointer_lock_context.mojom.h"
#include "third_party/blink/public/mojom/keyboard_lock/keyboard_lock.mojom.h"
#include "third_party/blink/public/mojom/manifest/display_mode.mojom.h"
#include "third_party/blink/public/mojom/page/widget.mojom.h"
#include "third_party/blink/public/mojom/widget/platform_widget.mojom.h"
#include "third_party/blink/public/mojom/widget/record_content_to_visible_time_request.mojom-forward.h"
#include "ui/base/dragdrop/mojom/drag_drop_types.mojom-forward.h"
#include "ui/base/ime/text_input_mode.h"
#include "ui/base/ime/text_input_type.h"
#include "ui/base/mojom/menu_source_type.mojom-forward.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/latency/latency_info.h"
#include "url/origin.h"
#if BUILDFLAG(IS_ANDROID)
#include "content/public/browser/android/child_process_importance.h"
#endif
#if BUILDFLAG(IS_MAC)
#include "services/device/public/mojom/wake_lock.mojom.h"
#endif
class SkBitmap;
namespace blink {
class WebInputEvent;
class WebMouseEvent;
} // namespace blink
namespace cc {
struct BrowserControlsOffsetTagsInfo;
} // namespace cc
namespace gfx {
class Image;
class Range;
class Vector2dF;
} // namespace gfx
namespace input {
class InputRouter;
class TimeoutMonitor;
class FlingSchedulerBase;
} // namespace input
namespace ui {
enum class DomCode : uint32_t;
}
namespace content {
class FrameTree;
class MockRenderWidgetHost;
class MockRenderWidgetHostImpl;
class RenderWidgetHostOwnerDelegate;
class RenderWidgetHostFactory;
class SiteInstanceGroup;
class SyntheticGestureController;
class VisibleTimeRequestTrigger;
// This implements the RenderWidgetHost interface that is exposed to
// embedders of content, and adds things only visible to content.
//
// Several core rendering primitives are mirrored between the browser and
// renderer. These are `blink::WidgetBase`, `RenderFrame` and `blink::WebView`.
// Their browser counterparts are `RenderWidgetHost`, `RenderFrameHost` and
// `RenderViewHost`.
//
// For simplicity and clarity, we want the object ownership graph in the
// renderer to mirror the object ownership graph in the browser. The IPC message
// that tears down the renderer object graph should be targeted at the root
// object, and should be sent by the destructor/finalizer of the root object in
// the browser.
//
// Note: We must tear down the renderer object graph with a single IPC to avoid
// inconsistencies in renderer state.
//
// RenderWidget represents a surface that can paint and receive input. It is
// used in four contexts:
// * Main frame for webpage (root is `blink::WebView`)
// * Child frame for webpage (root is RenderFrame)
// * Popups (root is RenderWidget)
// * Pepper Fullscreen (root is RenderWidget)
//
// Destruction of the RenderWidgetHost will trigger destruction of the
// RenderWidget iff RenderWidget is the root of the renderer object graph.
//
// Note: We want to converge on RenderFrame always being the root.
class CONTENT_EXPORT RenderWidgetHostImpl
: public RenderWidgetHost,
public FrameTokenMessageQueue::Client,
public RenderProcessHostObserver,
public RenderProcessHostPriorityClient,
public SyntheticGestureController::Delegate,
public RenderFrameMetadataProvider::Observer,
public blink::mojom::FrameWidgetHost,
public blink::mojom::PopupWidgetHost,
public blink::mojom::WidgetHost,
public blink::mojom::PointerLockContext,
public input::RenderInputRouterDelegate,
public input::RenderInputRouterClient {
public:
// See the constructor for documentation.
//
// This static factory method is restricted to being called from the factory,
// to ensure all RenderWidgetHostImpl creation can be hooked for tests.
static std::unique_ptr<RenderWidgetHostImpl> Create(
base::PassKey<RenderWidgetHostFactory>,
FrameTree* frame_tree,
RenderWidgetHostDelegate* delegate,
viz::FrameSinkId frame_sink_id,
base::SafeRef<SiteInstanceGroup> site_instance_group,
int32_t routing_id,
bool hidden,
bool renderer_initiated_creation,
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue);
// Similar to `Create()`, but creates a self-owned `RenderWidgetHostImpl`. The
// returned widget deletes itself when either:
// - ShutdownAndDestroyWidget(also_delete = true) is called.
// - its RenderProcess exits.
static RenderWidgetHostImpl* CreateSelfOwned(
base::PassKey<RenderWidgetHostFactory>,
FrameTree* frame_tree,
RenderWidgetHostDelegate* delegate,
base::SafeRef<SiteInstanceGroup> site_instance_group,
int32_t routing_id,
bool hidden,
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue);
RenderWidgetHostImpl(const RenderWidgetHostImpl&) = delete;
RenderWidgetHostImpl& operator=(const RenderWidgetHostImpl&) = delete;
~RenderWidgetHostImpl() override;
// Similar to RenderWidgetHost::FromID, but returning the Impl object.
static RenderWidgetHostImpl* FromID(int32_t process_id, int32_t routing_id);
// Returns all RenderWidgetHosts including swapped out ones for
// internal use. The public interface
// RenderWidgetHost::GetRenderWidgetHosts only returns active ones.
static std::unique_ptr<RenderWidgetHostIterator> GetAllRenderWidgetHosts();
// Use RenderWidgetHostImpl::From(rwh) to downcast a RenderWidgetHost to a
// RenderWidgetHostImpl.
static RenderWidgetHostImpl* From(RenderWidgetHost* rwh);
// Generates the FrameSinkId to use for a RenderWidgetHost allocated with
// `group` and `routing_id`.
static viz::FrameSinkId DefaultFrameSinkId(const SiteInstanceGroup& group,
int routing_id);
// TODO(crbug.com/40169570): FrameTree and FrameTreeNode will not be const as
// with prerenderer activation the page needs to move between FrameTreeNodes
// and FrameTrees. As it's hard to make sure that all places handle this
// transition correctly, MPArch will remove references from this class to
// FrameTree/FrameTreeNode.
FrameTree* frame_tree() const { return frame_tree_; }
void SetFrameTree(FrameTree& frame_tree) { frame_tree_ = &frame_tree; }
void set_new_content_rendering_delay_for_testing(
const base::TimeDelta& delay) {
new_content_rendering_delay_ = delay;
}
base::TimeDelta new_content_rendering_delay() {
return new_content_rendering_delay_;
}
void set_owner_delegate(RenderWidgetHostOwnerDelegate* owner_delegate) {
owner_delegate_ = owner_delegate;
}
RenderWidgetHostOwnerDelegate* owner_delegate() { return owner_delegate_; }
AgentSchedulingGroupHost& agent_scheduling_group() {
return *agent_scheduling_group_;
}
// Returns the object that tracks the start of content to visible events for
// the WebContents.
VisibleTimeRequestTrigger& GetVisibleTimeRequestTrigger();
// RenderWidgetHost implementation.
const viz::FrameSinkId& GetFrameSinkId() override;
void UpdateTextDirection(base::i18n::TextDirection direction) override;
void NotifyTextDirection() override;
void Focus() override;
void Blur() override;
void FlushForTesting() override;
void SetActive(bool active) override;
void ForwardMouseEvent(const blink::WebMouseEvent& mouse_event) override;
void ForwardWheelEvent(const blink::WebMouseWheelEvent& wheel_event) override;
void ForwardKeyboardEvent(
const input::NativeWebKeyboardEvent& key_event) override;
void ForwardGestureEvent(
const blink::WebGestureEvent& gesture_event) override;
RenderProcessHost* GetProcess() override;
int GetRoutingID() final;
RenderWidgetHostViewBase* GetView() override;
bool IsCurrentlyUnresponsive() override;
bool SynchronizeVisualProperties() override;
void AddKeyPressEventCallback(const KeyPressEventCallback& callback) override;
void RemoveKeyPressEventCallback(
const KeyPressEventCallback& callback) override;
void AddMouseEventCallback(const MouseEventCallback& callback) override;
void RemoveMouseEventCallback(const MouseEventCallback& callback) override;
void AddSuppressShowingImeCallback(
const SuppressShowingImeCallback& callback) override;
void RemoveSuppressShowingImeCallback(
const SuppressShowingImeCallback& callback,
bool trigger_ime) override;
void AddInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) override;
void RemoveInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) override;
void AddObserver(RenderWidgetHostObserver* observer) override;
void RemoveObserver(RenderWidgetHostObserver* observer) override;
display::ScreenInfo GetScreenInfo() const override;
display::ScreenInfos GetScreenInfos() const override;
float GetDeviceScaleFactor() override;
std::optional<cc::TouchAction> GetAllowedTouchAction() override;
void WriteIntoTrace(perfetto::TracedValue context) override;
// |drop_data| must have been filtered. The embedder should call
// FilterDropData before passing the drop data to RWHI.
void DragTargetDragEnter(const DropData& drop_data,
const gfx::PointF& client_pt,
const gfx::PointF& screen_pt,
blink::DragOperationsMask operations_allowed,
int key_modifiers,
DragOperationCallback callback) override;
void DragTargetDragEnterWithMetaData(
const std::vector<DropData::Metadata>& metadata,
const gfx::PointF& client_pt,
const gfx::PointF& screen_pt,
blink::DragOperationsMask operations_allowed,
int key_modifiers,
DragOperationCallback callback) override;
void DragTargetDragOver(const gfx::PointF& client_point,
const gfx::PointF& screen_point,
blink::DragOperationsMask operations_allowed,
int key_modifiers,
DragOperationCallback callback) override;
void DragTargetDragLeave(const gfx::PointF& client_point,
const gfx::PointF& screen_point) override;
// |drop_data| must have been filtered. The embedder should call
// FilterDropData before passing the drop data to RWHI.
void DragTargetDrop(const DropData& drop_data,
const gfx::PointF& client_point,
const gfx::PointF& screen_point,
int key_modifiers,
base::OnceClosure callback) override;
void DragSourceEndedAt(const gfx::PointF& client_pt,
const gfx::PointF& screen_pt,
ui::mojom::DragOperation operation,
base::OnceClosure callback) override;
void DragSourceSystemDragEnded() override;
void FilterDropData(DropData* drop_data) override;
void SetCursor(const ui::Cursor& cursor) override;
void ShowContextMenuAtPoint(
const gfx::Point& point,
const ui::mojom::MenuSourceType source_type) override;
void InsertVisualStateCallback(VisualStateCallback callback) override;
// RenderProcessHostPriorityClient implementation.
RenderProcessHostPriorityClient::Priority GetPriority() override;
// RenderProcessHostObserver implementation.
void RenderProcessExited(RenderProcessHost* host,
const ChildProcessTerminationInfo& info) override;
// blink::mojom::WidgetHost implementation.
void UpdateTooltipUnderCursor(
const std::u16string& tooltip_text,
base::i18n::TextDirection text_direction_hint) override;
void UpdateTooltipFromKeyboard(const std::u16string& tooltip_text,
base::i18n::TextDirection text_direction_hint,
const gfx::Rect& bounds) override;
void ClearKeyboardTriggeredTooltip() override;
void TextInputStateChanged(ui::mojom::TextInputStatePtr state) override;
void SelectionBoundsChanged(const gfx::Rect& anchor_rect,
base::i18n::TextDirection anchor_dir,
const gfx::Rect& focus_rect,
base::i18n::TextDirection focus_dir,
const gfx::Rect& bounding_box,
bool is_anchor_first) override;
void CreateFrameSink(
mojo::PendingReceiver<viz::mojom::CompositorFrameSink>
compositor_frame_sink_receiver,
mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient>) override;
void RegisterRenderFrameMetadataObserver(
mojo::PendingReceiver<cc::mojom::RenderFrameMetadataObserverClient>
render_frame_metadata_observer_client_receiver,
mojo::PendingRemote<cc::mojom::RenderFrameMetadataObserver>
render_frame_metadata_observer) override;
// blink::mojom::PopupWidgetHost implementation.
void RequestClosePopup() override;
void ShowPopup(const gfx::Rect& initial_screen_rect,
const gfx::Rect& anchor_screen_rect,
ShowPopupCallback callback) override;
void SetPopupBounds(const gfx::Rect& bounds,
SetPopupBoundsCallback callback) override;
// RenderInputRouterDelegate implementation.
input::RenderWidgetHostViewInput* GetPointerLockView() override;
const cc::RenderFrameMetadata& GetLastRenderFrameMetadata() override;
std::unique_ptr<input::RenderInputRouterIterator>
GetEmbeddedRenderInputRouters() override;
input::RenderWidgetHostInputEventRouter* GetInputEventRouter() override;
void ForwardDelegatedInkPoint(gfx::DelegatedInkPoint& delegated_ink_point,
bool& ended_delegated_ink_trail) override;
void ResetDelegatedInkPointPrediction(
bool& ended_delegated_ink_trail) override;
void NotifyObserversOfInputEvent(const blink::WebInputEvent& event) override;
void NotifyObserversOfInputEventAcks(
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result,
const blink::WebInputEvent& event) override;
bool PreHandleGestureEvent(const blink::WebGestureEvent& event) override;
TouchEmulatorImpl* GetTouchEmulator(bool create_if_necessary) override;
std::unique_ptr<input::PeakGpuMemoryTracker> MakePeakGpuMemoryTracker(
input::PeakGpuMemoryTracker::Usage usage) override;
void OnWheelEventAck(const input::MouseWheelEventWithLatencyInfo& event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result) override;
bool IsInitializedAndNotDead() override;
void OnInputEventPreDispatch(const blink::WebInputEvent& event) override;
void OnInvalidInputEventSource() override;
void NotifyUISchedulerOfGestureEventUpdate(
blink::WebInputEvent::Type gesture_event) override;
void OnInputIgnored(const blink::WebInputEvent& event) override;
// Update the stored set of visual properties for the renderer. If 'propagate'
// is true, the new properties will be sent to the renderer process.
bool UpdateVisualProperties(bool propagate);
// Notification that the screen info has changed.
void NotifyScreenInfoChanged();
// Forces redraw in the renderer and when the update reaches the browser.
// grabs snapshot from the compositor.
// If |from_surface| is false, it will obtain the snapshot directly from the
// view (On MacOS, the snapshot is taken from the Cocoa view for end-to-end
// testing purposes).
// Otherwise, the snapshot is obtained from the view's surface, with no bounds
// defined.
// Returns a gfx::Image that is backed by an NSImage on MacOS or by an
// SkBitmap otherwise. The gfx::Image may be empty if the snapshot failed.
using GetSnapshotFromBrowserCallback =
base::OnceCallback<void(const gfx::Image&)>;
void GetSnapshotFromBrowser(GetSnapshotFromBrowserCallback callback,
bool from_surface);
// Sets the View of this RenderWidgetHost.
void SetView(RenderWidgetHostViewBase* view);
RenderWidgetHostDelegate* delegate() const { return delegate_; }
// Bind the provided widget interfaces.
void BindWidgetInterfaces(
mojo::PendingAssociatedReceiver<blink::mojom::WidgetHost> widget_host,
mojo::PendingAssociatedRemote<blink::mojom::Widget> widget);
// Bind the provided popup widget interface.
void BindPopupWidgetInterface(
mojo::PendingAssociatedReceiver<blink::mojom::PopupWidgetHost>
popup_widget_host);
// Bind the provided frame widget interfaces.
void BindFrameWidgetInterfaces(
mojo::PendingAssociatedReceiver<blink::mojom::FrameWidgetHost>
frame_widget_host,
mojo::PendingAssociatedRemote<blink::mojom::FrameWidget> frame_widget);
// The Bind*Interfaces() methods are called before creating the renderer-side
// Widget object, and RendererWidgetCreated() is called afterward. At that
// point the bound mojo interfaces are connected to the renderer Widget. The
// `for_frame_widget` informs if this widget should enable frame-specific
// behaviour and mojo connections.
void RendererWidgetCreated(bool for_frame_widget);
// Renderer-created top-level widgets (either for a main frame or for a popup)
// wait to be shown until the renderer requests it. When that condition is
// satisfied we are notified through Init(). This will always happen after
// RendererWidgetCreated().
void Init();
// Returns true if the frame content needs be stored before being evicted.
bool ShouldShowStaleContentOnEviction();
void SetFrameDepth(unsigned int depth);
void SetIntersectsViewport(bool intersects);
void UpdatePriority();
// Tells the renderer to die and optionally delete |this|.
void ShutdownAndDestroyWidget(bool also_delete);
// Indicates if the page has finished loading.
void SetIsLoading(bool is_loading);
// Called to notify the RenderWidget that it has been hidden or restored from
// having been hidden.
void WasHidden();
void WasShown(blink::mojom::RecordContentToVisibleTimeRequestPtr
record_tab_switch_time_request);
// Called to request the presentation time for the next frame or cancel any
// requests when the RenderWidget's visibility state is not changing. If the
// visibility state is changing call WasHidden or WasShown instead.
void RequestSuccessfulPresentationTimeForNextFrame(
blink::mojom::RecordContentToVisibleTimeRequestPtr visible_time_request);
void CancelSuccessfulPresentationTimeRequest();
#if BUILDFLAG(IS_ANDROID)
// Set the importance of widget. The importance is passed onto
// RenderProcessHost which aggregates importance of all of its widgets.
void SetImportance(ChildProcessImportance importance);
ChildProcessImportance importance() const { return importance_; }
void AddImeInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) override;
void RemoveImeInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) override;
#endif
// Returns true if the RenderWidget is hidden.
bool is_hidden() const { return is_hidden_; }
// Called to notify the RenderWidget that its associated native window
// got/lost focused.
void GotFocus();
void LostFocus();
void LostCapture();
// Used by the RenderFrameHost to help with verifying changes in focus. Tells
// whether LostFocus() was called after any frame on this page was focused.
bool HasLostFocus() const { return has_lost_focus_; }
void ResetLostFocus() { has_lost_focus_ = false; }
// Indicates whether the RenderWidgetHost thinks it is focused.
// This is different from RenderWidgetHostView::HasFocus() in the sense that
// it reflects what the renderer process knows: it saves the state that is
// sent/received.
// RenderWidgetHostView::HasFocus() is checking whether the view is focused so
// it is possible in some edge cases that a view was requested to be focused
// but it failed, thus HasFocus() returns false.
bool is_focused() const { return is_focused_; }
// Support for focus tracking on multi-FrameTree cases. This will notify all
// descendants (including nested FrameTrees) to distribute a "page focus"
// update. Users other than WebContents and RenderWidgetHost should use
// Focus()/Blur().
void SetPageFocus(bool focused);
// Returns true if the RenderWidgetHost thinks it is active. This
// is different than `is_focused` but must always be true if `is_focused`
// is true. All RenderWidgetHosts in an active tab are considered active,
// but only one FrameTree can have page focus (e.g., an inner frame
// tree (fenced frame) will not have focus if the primary frame tree has
// focus. See
// https://www.chromium.org/developers/design-documents/aura/focus-and-activation.
bool is_active() const { return is_active_; }
// Called to notify the RenderWidget that it has lost the pointer lock.
void LostPointerLock();
// Notifies the RenderWidget that it lost the pointer lock.
void SendPointerLockLost();
bool is_last_unlocked_by_target() const {
return is_last_unlocked_by_target_;
}
// Notifies the RenderWidget of the current mouse cursor visibility state.
void OnCursorVisibilityStateChanged(bool is_visible);
// Notifies the RenderWidgetHost that the View was destroyed.
void ViewDestroyed();
bool visual_properties_ack_pending_for_testing() {
return visual_properties_ack_pending_;
}
// Requests the generation of a new CompositorFrame from the renderer.
// It will return false if the renderer is not ready (e.g. there's an
// in flight change).
bool RequestRepaintForTesting();
// Called after every cross-document navigation. Note that for prerender
// navigations, this is called before the renderer is shown.
void DidNavigate();
// Called after every cross-document navigation. The displayed graphics of
// the renderer is cleared after a certain timeout if it does not produce a
// new CompositorFrame after navigation. This is called after either
// navigation (for non-prerender pages) or activation (for prerender pages).
void StartNewContentRenderingTimeout();
// Customize the value of `new_content_rendering_delay_` for testing.
void SetNewContentRenderingTimeoutForTesting(base::TimeDelta timeout);
// Forwards the keyboard event with optional commands to the renderer. If
// |key_event| is not forwarded for any reason, then |commands| are ignored.
// |update_event| (if non-null) is set to indicate whether the underlying
// event in |key_event| should be updated. |update_event| is only used on
// aura.
void ForwardKeyboardEventWithCommands(
const input::NativeWebKeyboardEvent& key_event,
const ui::LatencyInfo& latency,
std::vector<blink::mojom::EditCommandPtr> commands,
bool* update_event = nullptr);
// Forwards the given message to the renderer. These are called by the view
// when it has received a message.
void ForwardKeyboardEventWithLatencyInfo(
const input::NativeWebKeyboardEvent& key_event,
const ui::LatencyInfo& latency) override;
void ForwardMouseEventWithLatencyInfo(const blink::WebMouseEvent& mouse_event,
const ui::LatencyInfo& latency);
void ForwardWheelEventWithLatencyInfo(
const blink::WebMouseWheelEvent& wheel_event,
const ui::LatencyInfo& latency) override;
// Resolves the given callback once all effects of prior input have been
// fully realized.
void WaitForInputProcessed(SyntheticGestureParams::GestureType type,
content::mojom::GestureSourceType source,
base::OnceClosure callback);
// Resolves the given callback once all effects of previously forwarded input
// have been fully realized (i.e. resulting compositor frame has been drawn,
// swapped, and presented).
void WaitForInputProcessed(base::OnceClosure callback);
// Queues a synthetic gesture for testing purposes. Invokes the on_complete
// callback when the gesture is finished running.
void QueueSyntheticGesture(
std::unique_ptr<SyntheticGesture> synthetic_gesture,
base::OnceCallback<void(SyntheticGesture::Result)> on_complete);
void QueueSyntheticGestureCompleteImmediately(
std::unique_ptr<SyntheticGesture> synthetic_gesture);
// Ensures the renderer is in a state ready to receive synthetic input. The
// SyntheticGestureController will normally ensure this before sending the
// first gesture; however, in some tests that may be a bad time (e.g. the
// gesture is sent while the main thread is blocked) so this allows the
// caller to do so manually.
void EnsureReadyForSyntheticGestures(base::OnceClosure on_ready);
// Update the composition node of the renderer (or WebKit).
// WebKit has a special node (a composition node) for input method to change
// its text without affecting any other DOM nodes. When the input method
// (attached to the browser) updates its text, the browser sends IPC messages
// to update the composition node of the renderer.
// (Read the comments of each function for its detail.)
// Sets the text of the composition node.
// This function can also update the cursor position and mark the specified
// range in the composition node.
// A browser should call this function:
// * when it receives a WM_IME_COMPOSITION message with a GCS_COMPSTR flag
// (on Windows);
// * when it receives a "preedit_changed" signal of GtkIMContext (on Linux);
// * when markedText of NSTextInput is called (on Mac).
void ImeSetComposition(const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int selection_start,
int selection_end);
// Deletes the ongoing composition if any, inserts the specified text, and
// moves the cursor.
// A browser should call this function or ImeFinishComposingText:
// * when it receives a WM_IME_COMPOSITION message with a GCS_RESULTSTR flag
// (on Windows);
// * when it receives a "commit" signal of GtkIMContext (on Linux);
// * when insertText of NSTextInput is called (on Mac).
void ImeCommitText(const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int relative_cursor_pos);
// Finishes an ongoing composition.
// A browser should call this function or ImeCommitText:
// * when it receives a WM_IME_COMPOSITION message with a GCS_RESULTSTR flag
// (on Windows);
// * when it receives a "commit" signal of GtkIMContext (on Linux);
// * when insertText of NSTextInput is called (on Mac).
void ImeFinishComposingText(bool keep_selection);
// Cancels an ongoing composition.
void ImeCancelComposition();
// Whether forwarded WebInputEvents or other events are being ignored.
bool IsIgnoringWebInputEvents(
const blink::WebInputEvent& event) const override;
bool IsIgnoringInputEvents() const;
// Called when the response to a pending pointer lock request has arrived.
// Returns true if |allowed| is true and the pointer has been successfully
// locked.
bool GotResponseToPointerLockRequest(blink::mojom::PointerLockResult result);
// Called when the response to a pending keyboard lock request has arrived.
// |allowed| should be true if the current tab is in tab initiated fullscreen
// mode.
void GotResponseToKeyboardLockRequest(bool allowed);
// Called when the response to an earlier WidgetMsg_ForceRedraw message has
// arrived. The reply includes the snapshot-id from the request.
void GotResponseToForceRedraw(int snapshot_id);
// When the WebContents (which acts as the Delegate) is destroyed, this object
// may still outlive it while the renderer is shutting down. In that case the
// delegate pointer is removed (since it would be a UAF).
void DetachDelegate();
// Update the renderer's cache of the screen rect of the view and window.
void SendScreenRects();
// Indicates whether the renderer drives the RenderWidgetHosts's size or the
// other way around.
bool auto_resize_enabled() { return auto_resize_enabled_; }
// The minimum size of this renderer when auto-resize is enabled.
const gfx::Size& min_size_for_auto_resize() const {
return min_size_for_auto_resize_;
}
// The maximum size of this renderer when auto-resize is enabled.
const gfx::Size& max_size_for_auto_resize() const {
return max_size_for_auto_resize_;
}
// Don't check whether we expected a resize ack during web tests.
static void DisableResizeAckCheckForTesting();
input::InputRouter* input_router();
void SetForceEnableZoom(bool);
// Get the BrowserAccessibilityManager for the root of the frame tree,
ui::BrowserAccessibilityManager* GetRootBrowserAccessibilityManager();
// Get the BrowserAccessibilityManager for the root of the frame tree,
// or create it if it doesn't already exist.
ui::BrowserAccessibilityManager* GetOrCreateRootBrowserAccessibilityManager();
// Virtual for testing.
virtual void RejectPointerLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult reason);
// Store values received in a child frame RenderWidgetHost from a parent
// RenderWidget, in order to pass them to the renderer and continue their
// propagation down the RenderWidget tree.
void SetVisualPropertiesFromParentFrame(
float page_scale_factor,
float compositing_scale_factor,
bool is_pinch_gesture_active,
const gfx::Size& visible_viewport_size,
const gfx::Rect& compositor_viewport,
std::vector<gfx::Rect> root_widget_viewport_segments);
// Indicates if the render widget host should track the render widget's size
// as opposed to visa versa.
// In main frame RenderWidgetHosts this controls the value for the frame tree.
// In child frame RenderWidgetHosts this value comes from the parent
// RenderWidget and should be propagated down the RenderWidgetTree.
void SetAutoResize(bool enable,
const gfx::Size& min_size,
const gfx::Size& max_size);
// Returns the result of GetVisualProperties(), resetting and storing that
// value as what has been sent to the renderer. This should be called when
// getting VisualProperties that will be sent in order to create a
// RenderWidget, since the creation acts as the initial
// SynchronizeVisualProperties().
//
// This has the side effect of resetting state that should match a newly
// created RenderWidget in the renderer.
//
// TODO(dcheng): Tests call this directly but shouldn't have to. Investigate
// getting rid of this.
blink::VisualProperties GetInitialVisualProperties();
// Clears the state of the VisualProperties of this widget.
void ClearVisualProperties();
// Pushes updated visual properties to the renderer as well as whether the
// focused node should be scrolled into view.
bool SynchronizeVisualProperties(bool scroll_focused_node_into_view,
bool propagate = true);
// Similar to SynchronizeVisualProperties(), but performed even if
// |visual_properties_ack_pending_| is set. Used to guarantee that the
// latest visual properties are sent to the renderer before another IPC.
bool SynchronizeVisualPropertiesIgnoringPendingAck();
// Called when we receive a notification indicating that the renderer process
// is gone. This will reset our state so that our state will be consistent if
// a new renderer is created.
void RendererExited();
// Called from a RenderFrameHost when the text selection has changed.
void SelectionChanged(const std::u16string& text,
uint32_t offset,
const gfx::Range& range);
size_t in_flight_event_count() const { return in_flight_event_count_; }
bool renderer_initialized() const { return renderer_widget_created_; }
base::WeakPtr<RenderWidgetHostImpl> GetWeakPtr() {
return weak_factory_.GetWeakPtr();
}
// Request composition updates from RenderWidget. If |immediate_request| is
// true, RenderWidget will respond immediately. If |monitor_updates| is true,
// then RenderWidget sends updates for each compositor frame when there are
// changes, or when the text selection changes inside a frame. If both fields
// are false, RenderWidget will not send any updates. To avoid sending
// unnecessary IPCs to RenderWidget (e.g., asking for monitor updates while
// we are already receiving updates), when
// |monitoring_composition_info_| == |monitor_updates| no IPC is sent to the
// renderer unless it is for an immediate request.
void RequestCompositionUpdates(bool immediate_request, bool monitor_updates);
RenderFrameMetadataProviderImpl* render_frame_metadata_provider() {
return &render_frame_metadata_provider_;
}
// SyntheticGestureController::Delegate overrides.
bool HasGestureStopped() override;
bool IsHidden() const override;
// Signals that a frame with token |frame_token| was finished processing. If
// there are any queued messages belonging to it, they will be processed.
void DidProcessFrame(uint32_t frame_token, base::TimeTicks activation_time);
// virtual for testing.
virtual blink::mojom::WidgetInputHandler* GetWidgetInputHandler();
// RenderInputRouterClient overrides.
void OnImeCompositionRangeChanged(
const gfx::Range& range,
const std::optional<std::vector<gfx::Rect>>& character_bounds,
const std::optional<std::vector<gfx::Rect>>& line_bounds) override;
void OnImeCancelComposition() override;
input::StylusInterface* GetStylusInterface() override;
void OnStartStylusWriting() override;
void UpdateElementFocusForStylusWriting() override;
bool IsAutoscrollInProgress() override;
void SetMouseCapture(bool capture) override;
void SetAutoscrollSelectionActiveInMainFrame(
bool autoscroll_selection) override;
void RequestMouseLock(
bool from_user_gesture,
bool unadjusted_movement,
input::InputRouterImpl::RequestMouseLockCallback response) override;
// TODO(b/331420891): Move these methods into RenderInputRouter.
void IncrementInFlightEventCount() override;
void DecrementInFlightEventCount(
blink::mojom::InputEventResultSource ack_source) override;
// PointerLockContext overrides
void RequestMouseLockChange(
bool unadjusted_movement,
PointerLockContext::RequestMouseLockChangeCallback response) override;
// FrameTokenMessageQueue::Client:
void OnInvalidFrameToken(uint32_t frame_token) override;
void ProgressFlingIfNeeded(base::TimeTicks current_time);
void StopFling();
RenderWidgetHostViewBase* GetRenderWidgetHostViewBase();
// The RenderWidgetHostImpl will keep showing the old page (for a while) after
// navigation until the first frame of the new page arrives. This reduces
// flicker. However, if for some reason it is known that the frames won't be
// arriving, this call can be used for force a timeout, to avoid showing the
// content of the old page under UI from the new page.
void ForceFirstFrameAfterNavigationTimeout();
void SetScreenOrientationForTesting(uint16_t angle,
display::mojom::ScreenOrientation type);
// Requests keyboard lock. If `codes` has no value then all keys will be
// locked, otherwise only the keys specified will be intercepted and routed to
// the web page. `request_keyboard_lock_callback` gets called with the result
// of the request, possibly before the lock actually takes effect.
void RequestKeyboardLock(
std::optional<base::flat_set<ui::DomCode>> codes,
base::OnceCallback<void(blink::mojom::KeyboardLockRequestResult)>
request_keyboard_lock_callback);
// Cancels a previous keyboard lock request.
void CancelKeyboardLock();
// Indicates whether keyboard lock is active.
bool IsKeyboardLocked() const;
// Returns the keyboard layout mapping.
base::flat_map<std::string, std::string> GetKeyboardLayoutMap();
void RequestForceRedraw(int snapshot_id);
bool IsContentRenderingTimeoutRunning() const;
enum class RendererIsUnresponsiveReason {
kOnInputEventAckTimeout = 0,
kNavigationRequestCommitTimeout = 1,
kRendererCancellationThrottleTimeout = 2,
kMaxValue = kRendererCancellationThrottleTimeout,
};
// Called on delayed response from the renderer by either
// 1) |hang_monitor_timeout_| (slow to ack input events) or
// 2) NavigationHandle::OnCommitTimeout (slow to commit) or
// 3) RendererCancellationThrottle::OnTimeout (slow cancelling navigation).
void RendererIsUnresponsive(
RendererIsUnresponsiveReason reason,
base::RepeatingClosure restart_hang_monitor_timeout);
// Called if we know the renderer is responsive. When we currently think the
// renderer is unresponsive, this will clear that state and call
// NotifyRendererResponsive.
void RendererIsResponsive();
// Called during frame eviction to return all SurfaceIds in the frame tree.
// Marks all views in the frame tree as evicted.
std::vector<viz::SurfaceId> CollectSurfaceIdsForEviction();
// This function validates a renderer's attempt to activate frames. It
// removes one pending user activation if available and returns true;
// otherwise, it returns false. See comments on
// Add/ClearPendingUserActivation() for details.
bool RemovePendingUserActivationIfAvailable();
const mojo::AssociatedRemote<blink::mojom::FrameWidget>&
GetAssociatedFrameWidget();
blink::mojom::FrameWidgetInputHandler* GetFrameWidgetInputHandler();
// Exposed so that tests can swap the implementation and intercept calls.
mojo::AssociatedReceiver<blink::mojom::FrameWidgetHost>&
frame_widget_host_receiver_for_testing() {
return blink_frame_widget_host_receiver_;
}
// Exposed so that tests can swap the implementation and intercept calls.
mojo::AssociatedReceiver<blink::mojom::PopupWidgetHost>&
popup_widget_host_receiver_for_testing() {
return blink_popup_widget_host_receiver_;
}
// Exposed so that tests can swap the implementation and intercept calls.
mojo::AssociatedReceiver<blink::mojom::WidgetHost>&
widget_host_receiver_for_testing() {
return blink_widget_host_receiver_;
}
std::optional<blink::VisualProperties> LastComputedVisualProperties() const;
// Generates widget creation params that will be passed to the renderer to
// create a new widget. As a side effect, this resets various widget and frame
// widget Mojo interfaces and rebinds them, passing the new endpoints in the
// returned params.
mojom::CreateFrameWidgetParamsPtr BindAndGenerateCreateFrameWidgetParams();
// TODO(danakj): This is a CreateNewWindow()-specific version of the above
// helper to work around the fact that things are in a weird state. Figure out
// why that's happening and remove this.
mojom::CreateFrameWidgetParamsPtr
BindAndGenerateCreateFrameWidgetParamsForNewWindow();
// RenderFrameMetadataProvider::Observer implementation.
void OnRenderFrameMetadataChangedBeforeActivation(
const cc::RenderFrameMetadata& metadata) override;
void OnRenderFrameMetadataChangedAfterActivation(
base::TimeTicks activation_time) override;
void OnRenderFrameSubmission() override;
void OnLocalSurfaceIdChanged(
const cc::RenderFrameMetadata& metadata) override;
SiteInstanceGroup* GetSiteInstanceGroup();
void PassImeRenderWidgetHost(
mojo::PendingRemote<blink::mojom::ImeRenderWidgetHost> pending_remote);
// Updates the browser controls by directly IPCing onto the compositor thread.
void UpdateBrowserControlsState(
cc::BrowserControlsState constraints,
cc::BrowserControlsState current,
bool animate,
const std::optional<cc::BrowserControlsOffsetTagsInfo>& offset_tags_info);
void StartDragging(blink::mojom::DragDataPtr drag_data,
const url::Origin& source_origin,
blink::DragOperationsMask drag_operations_mask,
const SkBitmap& unsafe_bitmap,
const gfx::Vector2d& cursor_offset_in_dip,
const gfx::Rect& drag_obj_rect_in_dip,
blink::mojom::DragEventSourceInfoPtr event_info);
// Notifies the widget that the viz::FrameSinkId assigned to it is now bound
// to its renderer side widget. If the renderer issued a FrameSink request
// before this handoff, the request is buffered and will be issued here.
void SetViewIsFrameSinkIdOwner(bool is_owner);
bool view_is_frame_sink_id_owner() const {
return view_is_frame_sink_id_owner_;
}
// Helper class to log navigation-related compositor metrics. Keeps track of
// the timestamp when navigation commit/RFH swap/frame sink request happened
// for the first navigation that uses this RenderWidgetHost.
class CompositorMetricRecorder {
public:
CompositorMetricRecorder(RenderWidgetHostImpl* owner);
~CompositorMetricRecorder() = default;
// The functions below are called when the first navigation that uses this
// RenderWidgetHost commits/swaps in the RenderFrameHost/requested frame
// sink creation respectively.
void DidStartNavigationCommit();
void DidSwap();
void DidRequestFrameSink();
private:
void TryToRecordMetrics();
// The timestamp of the last call to
// `MaybeDispatchBufferedFrameSinkRequest()` where we run
// `create_frame_sink_callback_`.
base::TimeTicks create_frame_sink_timestamp_;
// The timestamp of when the navigation that created this RenderWidgetHost
// committed/swapped in the RenderFrameHost.
base::TimeTicks commit_nav_timestamp_;
base::TimeTicks swap_rfh_timestamp_;
const raw_ptr<RenderWidgetHostImpl> owner_;
};
CompositorMetricRecorder* compositor_metric_recorder() const {
return compositor_metric_recorder_.get();
}
// Disables recording metrics through CompositorMetricRecorder by resetting
// the owned `compositor_metric_recorder_`.
void DisableCompositorMetricRecording();
virtual input::RenderInputRouter*
GetRenderInputRouter(); // virtual for testing.
// Requests a commit and forced redraw in the renderer compositor.
void ForceRedrawForTesting();
protected:
// |routing_id| must not be MSG_ROUTING_NONE.
// If this object outlives |delegate|, DetachDelegate() must be called when
// |delegate| goes away. |site_instance_group| will outlive this
// widget but we store it via a `base::SafeRef` instead of a scoped_refptr to
// not create a cycle and keep alive the `SiteInstanceGroup`.
RenderWidgetHostImpl(
FrameTree* frame_tree,
bool self_owned,
viz::FrameSinkId frame_sink_id,
RenderWidgetHostDelegate* delegate,
base::SafeRef<SiteInstanceGroup> site_instance_group,
int32_t routing_id,
bool hidden,
bool renderer_initiated_creation,
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue);
// ---------------------------------------------------------------------------
// The following method is overridden by RenderViewHost to send upwards to
// its delegate.
// Callback for notification that we failed to receive any rendered graphics
// from a newly loaded page. Used for testing.
virtual void NotifyNewContentRenderingTimeoutForTesting() {}
// virtual for testing.
virtual void OnMouseEventAck(const input::MouseEventWithLatencyInfo& event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result);
// ---------------------------------------------------------------------------
bool IsPointerLocked() const;
std::unique_ptr<input::FlingSchedulerBase> MakeFlingScheduler();
private:
FRIEND_TEST_ALL_PREFIXES(FullscreenDetectionTest,
EncompassingDivNotFullscreen);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
DoNotAcceptPopupBoundsUntilScreenRectsAcked);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
DontPostponeInputEventAckTimeout);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, PendingUserActivationTimeout);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, RendererExitedNoDrag);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
StopAndStartInputEventAckTimeout);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
ShorterDelayInputEventAckTimeout);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
AddAndRemoveInputEventObserver);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
ScopedObservationWithInputEventObserver);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
AddAndRemoveImeInputEventObserver);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest,
InputRouterReceivesHasTouchEventHandlers);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, EventDispatchPostDetach);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostTest, InputEventRWHLatencyComponent);
FRIEND_TEST_ALL_PREFIXES(DevToolsAgentHostImplTest,
NoUnresponsiveDialogInInspectedContents);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewMacTest,
ConflictingAllocationsResolve);
FRIEND_TEST_ALL_PREFIXES(SitePerProcessBrowserTest,
ResizeAndCrossProcessPostMessagePreserveOrder);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostInputEventRouterTest,
EnsureRendererDestroyedHandlesUnAckedTouchEvents);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventState);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest, TouchEventSyncAsync);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraOverscrollTest,
OverscrollWithTouchEvents);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraOverscrollTest,
TouchGestureEndDispatchedAfterOverscrollComplete);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostViewAuraTest,
InvalidEventsHaveSyncHandlingDisabled);
FRIEND_TEST_ALL_PREFIXES(RenderWidgetHostInputEventRouterTest,
EnsureRendererDestroyedHandlesUnAckedTouchEvents);
friend class MockRenderWidgetHost;
friend class MockRenderWidgetHostImpl;
friend class OverscrollNavigationOverlayTest;
friend class RenderViewHostTester;
friend class TestRenderViewHost;
// Tell this object to destroy itself. If |also_delete| is specified, the
// destructor is called as well.
void Destroy(bool also_delete);
// Called by |new_content_rendering_timeout_| if a renderer has loaded new
// content but failed to produce a compositor frame in a defined time.
void ClearDisplayedGraphics();
// InputRouter::SendKeyboardEvent() callbacks to this. This may be called
// synchronously.
void OnKeyboardEventAck(
const input::NativeWebKeyboardEventWithLatencyInfo& event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result);
// Release the pointer lock
void UnlockPointer();
// IPC message handlers
void OnClose();
void OnUpdateScreenRectsAck();
void OnUpdateDragOperation(DragOperationCallback callback,
ui::mojom::DragOperation current_op,
bool document_is_handling_drag);
// blink::mojom::FrameWidgetHost overrides.
void AnimateDoubleTapZoomInMainFrame(const gfx::Point& tap_point,
const gfx::Rect& rect_to_zoom) override;
void ZoomToFindInPageRectInMainFrame(const gfx::Rect& rect_to_zoom) override;
void SetHasTouchEventConsumers(
blink::mojom::TouchEventConsumersPtr consumers) override;
void IntrinsicSizingInfoChanged(
blink::mojom::IntrinsicSizingInfoPtr sizing_info) override;
void AutoscrollStart(const gfx::PointF& position) override;
void AutoscrollFling(const gfx::Vector2dF& velocity) override;
void AutoscrollEnd() override;
// When the RenderWidget is destroyed and recreated, this resets states in the
// browser to match the clean start for the renderer side.
void ResetStateForCreatedRenderWidget(
const blink::VisualProperties& initial_props);
// Generates a filled in VisualProperties struct representing the current
// properties of this widget.
blink::VisualProperties GetVisualProperties();
// Returns true if the |new_visual_properties| differs from
// |old_page_visual_properties| in a way that indicates a size changed.
static bool DidVisualPropertiesSizeChange(
const blink::VisualProperties& old_visual_properties,
const blink::VisualProperties& new_visual_properties);
// Returns true if the new visual properties requires an ack from a
// synchronization message.
static bool DoesVisualPropertiesNeedAck(
const std::unique_ptr<blink::VisualProperties>& old_visual_properties,
const blink::VisualProperties& new_visual_properties);
// Returns true if |old_visual_properties| is out of sync with
// |new_visual_properties|.
static bool StoredVisualPropertiesNeedsUpdate(
const std::unique_ptr<blink::VisualProperties>& old_visual_properties,
const blink::VisualProperties& new_visual_properties);
// Give key press listeners a chance to handle this key press. This allow
// widgets that don't have focus to still handle key presses.
bool KeyPressListenersHandleEvent(const input::NativeWebKeyboardEvent& event);
void WindowSnapshotReachedScreen(int snapshot_id);
void OnSnapshotFromSurfaceReceived(int snapshot_id,
int retry_count,
const SkBitmap& bitmap);
void OnSnapshotReceived(int snapshot_id, gfx::Image image);
// This is called after the renderer attempts to focus content eligible for
// handwriting via mojom::blink::FrameWidget::OnStartStylusWriting. If content
// eligible for stylus handwriting has focus, then `focus_result` will be set,
// otherwise it will be nullptr.
void OnUpdateElementFocusForStylusWritingHandled(
blink::mojom::StylusWritingFocusResultPtr focus_result);
// Called by the RenderProcessHost to handle the case when the process
// changed its state of being blocked.
void RenderProcessBlockedStateChanged(bool blocked);
// 1. Grants permissions to URL (if any)
// 2. Grants permissions to filenames
// 3. Grants permissions to file system files.
// 4. Register the files with the IsolatedContext.
void GrantFileAccessFromDropData(DropData* drop_data);
// Starts a hang monitor timeout. If there's already a hang monitor timeout
// the new one will only fire if it has a shorter delay than the time
// left on the existing timeouts.
void StartInputEventAckTimeout();
// Stops all existing hang monitor timeouts and assumes the renderer is
// responsive.
void StopInputEventAckTimeout();
// Implementation of |hang_monitor_restarter| callback passed to
// RenderWidgetHostDelegate::RendererUnresponsive if the unresponsiveness
// was noticed because of input event ack timeout.
void RestartInputEventAckTimeoutIfNecessary();
// Called by |input_event_ack_timeout_| when an input event timed out without
// getting an ack from the renderer.
void OnInputEventAckTimeout();
void SetupRenderInputRouter();
void SetupInputRouter();
// Start intercepting system keyboard events.
void LockKeyboard();
// Stop intercepting system keyboard events.
void UnlockKeyboard();
#if BUILDFLAG(IS_MAC)
device::mojom::WakeLock* GetWakeLock();
#endif
void CreateSyntheticGestureControllerIfNecessary();
// Converts the |window_point| from the coordinates in native window in DIP
// to Blink's Viewport coordinates. They're identical in tradional world,
// but will differ when use-zoom-for-dsf feature is enabled.
// TODO(oshima): Update the comment when the migration is completed.
gfx::PointF ConvertWindowPointToViewport(const gfx::PointF& window_point);
// The following functions are used to keep track of pending user activation
// events, which are input events (e.g., mousedown or keydown) that allow a
// renderer to gain user activation. AddPendingUserActivation() increments
// |pending_user_activation_counter_| and sets a timer, which allows the
// renderer to claim user activation within
// |kActivationNotificationExpireTime| ms. ClearPendingUserActivation()
// clears the counter and is called after navigations or timeouts.
void AddPendingUserActivation(const blink::WebInputEvent& event);
void ClearPendingUserActivation();
// Dispatch any buffered FrameSink requests from the renderer if the widget
// has a view and is the owner for the FrameSinkId assigned to it.
void MaybeDispatchBufferedFrameSinkRequest();
// An expiry time for resetting the pending_user_activation_timer_.
static const base::TimeDelta kActivationNotificationExpireTime;
raw_ptr<FrameTree> frame_tree_;
// RenderWidgetHost are either:
// - Owned by RenderViewHostImpl.
// - Owned by RenderFrameHost, for local root iframes.
// - Self owned. Lifetime is managed from the renderer process, via Mojo IPC;
// This is used to implement:
// - Color Chooser popup.
// - Date/Time chooser popup.
// - Internal popup. Essentially, the <select> element popup.
//
// self_owned RenderWidgetHost are expected to be deleted using:
// ShutdownAndDestroyWidget(true /* also_delete */);
bool self_owned_;
// True while there is an established connection to a renderer-side Widget
// object.
bool renderer_widget_created_ = false;
// When the renderer widget is created, if created by the renderer, it may
// request to avoid showing the widget until requested. In that case, this
// value is set to true, and we defer WasShown() events until the request
// arrives which is signaled by Init().
bool waiting_for_init_;
// True if |Destroy()| has been called.
bool destroyed_ = false;
// Our delegate, which wants to know mainly about keyboard events.
// It will remain non-null until DetachDelegate() is called.
raw_ptr<RenderWidgetHostDelegate, FlakyDanglingUntriaged> delegate_;
// The delegate of the owner of this object.
// This member is non-null if and only if this RenderWidgetHost is associated
// with a main frame RenderWidget.
raw_ptr<RenderWidgetHostOwnerDelegate> owner_delegate_ = nullptr;
// AgentSchedulingGroupHost to be used for IPC with the corresponding
// (renderer-side) AgentSchedulingGroup. Its channel may be nullptr if the
// renderer crashed. We store it here as a separate reference instead of
// dynamically fetching it from `site_instance_group_` since its
// value gets cleared early in `SiteInstanceGroup` via
// RenderProcessHostDestroyed before this object is destroyed.
const raw_ref<AgentSchedulingGroupHost> agent_scheduling_group_;
// The SiteInstanceGroup this RenderWidgetHost belongs to.
// TODO(crbug.com/40258727) Turn this into base::SafeRef
base::WeakPtr<SiteInstanceGroup> site_instance_group_;
// The ID of the corresponding object in the Renderer Instance.
const int routing_id_;
// Indicates whether a page is hidden or not. Need to call
// process_->UpdateClientPriority when this value changes.
bool is_hidden_;
// For a widget that does not have an associated RenderFrame/View, assume it
// is depth 1, ie just below the root widget.
unsigned int frame_depth_ = 1u;
// Indicates that widget has a frame that intersects with the viewport. Note
// this is independent of |is_hidden_|. For widgets not associated with
// RenderFrame/View, assume false.
bool intersects_viewport_ = false;
// One side of a pipe that is held open while the pointer is locked.
// The other side is held be the renderer.
mojo::Receiver<blink::mojom::PointerLockContext> pointer_lock_context_{this};
// Tracks if LostFocus() has been called on this RenderWidgetHost since the
// previous change in focus. This tracks behaviors like a user clicking out of
// the page and into a UI element when verifying if a change in focus is
// allowed. The value will be reset after a RFHI gets focus. The RFHI will
// then keep track of this value to handle passing focus to other frames.
bool has_lost_focus_ = false;
#if BUILDFLAG(IS_ANDROID)
// Tracks the current importance of widget.
ChildProcessImportance importance_ = ChildProcessImportance::NORMAL;
#endif
// True when waiting for visual_properties_ack.
bool visual_properties_ack_pending_ = false;
// Visual properties that were most recently sent to the renderer.
std::unique_ptr<blink::VisualProperties> old_visual_properties_;
// True if the render widget host should track the render widget's size as
// opposed to visa versa.
bool auto_resize_enabled_ = false;
// The minimum size for the render widget if auto-resize is enabled.
gfx::Size min_size_for_auto_resize_;
// The maximum size for the render widget if auto-resize is enabled.
gfx::Size max_size_for_auto_resize_;
// These properties are propagated down the RenderWidget tree from the main
// frame to a child frame RenderWidgetHost. They are not used on a top-level
// RenderWidgetHost. The child frame RenderWidgetHost stores these values to
// pass them to the renderer, instead of computing them for itself. It
// collects them and passes them though
// blink::mojom::Widget::UpdateVisualProperties so that the renderer receives
// updates in an atomic fashion along with a synchronization token for the
// compositor in a LocalSurfaceId.
struct MainFramePropagationProperties {
MainFramePropagationProperties();
~MainFramePropagationProperties();
// The page-scale factor of the main-frame.
float page_scale_factor = 1.f;
// This represents the child frame's raster scale factor which takes into
// account the transform from child frame space to main frame space.
float compositing_scale_factor = 1.f;
// True when the renderer is currently undergoing a pinch-zoom gesture.
bool is_pinch_gesture_active = false;
// The size of the main frame's widget in DIP.
gfx::Size visible_viewport_size;
gfx::Rect compositor_viewport;
// The logical segments of the root widget, in DIPs relative to the root
// RenderWidgetHost.
std::vector<gfx::Rect> root_widget_viewport_segments;
} properties_from_parent_local_root_;
bool waiting_for_screen_rects_ack_ = false;
gfx::Rect last_view_screen_rect_;
gfx::Rect last_window_screen_rect_;
// Keyboard event listeners.
std::vector<KeyPressEventCallback> key_press_event_callbacks_;
// Mouse event callbacks.
std::vector<MouseEventCallback> mouse_event_callbacks_;
// Suppress showing keyboard callbacks.
std::vector<SuppressShowingImeCallback> suppress_showing_ime_callbacks_;
// Input event callbacks.
base::ObserverList<RenderWidgetHost::InputEventObserver>::Unchecked
input_event_observers_;
#if BUILDFLAG(IS_ANDROID)
// Ime input event callbacks. This is separated from input_event_observers_,
// because not all text events are triggered by input events on Android.
base::ObserverList<RenderWidgetHost::InputEventObserver>::Unchecked
ime_input_event_observers_;
#endif
// The observers watching us.
base::ObserverList<RenderWidgetHostObserver> observers_;
// This is true if the renderer is currently unresponsive.
bool is_unresponsive_ = false;
// We access this value quite a lot, so we cache switches::kDisableHangMonitor
// here.
const bool should_disable_hang_monitor_;
// This value denotes the number of input events yet to be acknowledged
// by the renderer.
int in_flight_event_count_ = 0;
// Set when we update the text direction of the selected input element.
bool text_direction_updated_ = false;
base::i18n::TextDirection text_direction_ = base::i18n::LEFT_TO_RIGHT;
// Indicates if Char and KeyUp events should be suppressed or not. Usually all
// events are sent to the renderer directly in sequence. However, if a
// RawKeyDown event was handled by PreHandleKeyboardEvent() or
// KeyPressListenersHandleEvent(), e.g. as an accelerator key, then the
// RawKeyDown event is not sent to the renderer, and the following sequence of
// Char and KeyUp events should also not be sent. Otherwise the renderer will
// see only the Char and KeyUp events and cause unexpected behavior. For
// example, pressing alt-2 may let the browser switch to the second tab, but
// the Char event generated by alt-2 may also activate a HTML element if its
// accesskey happens to be "2", then the user may get confused when switching
// back to the original tab, because the content may already have changed.
bool suppress_events_until_keydown_ = false;
bool pending_pointer_lock_request_ = false;
bool pointer_lock_raw_movement_ = false;
// Stores the keyboard keys to lock while waiting for a pending lock request.
std::optional<base::flat_set<ui::DomCode>> keyboard_keys_to_lock_;
bool keyboard_lock_allowed_ = false;
base::OnceCallback<void(blink::mojom::KeyboardLockRequestResult)>
keyboard_lock_request_callback_;
// Used when locking to indicate when a target application has voluntarily
// unlocked and desires to relock the mouse. If the mouse is unlocked due
// to ESC being pressed by the user, this will be false.
bool is_last_unlocked_by_target_ = false;
// True when the cursor has entered the autoscroll mode. A GSB is not
// necessarily sent yet.
bool autoscroll_in_progress_ = false;
// TODO(crbug.com/40263900): The gesture controller can cause synchronous
// destruction of the page (sending a click to the tab close button). Since
// that'll destroy the RenderWidgetHostImpl, having it own the controller is
// awkward.
std::unique_ptr<SyntheticGestureController> synthetic_gesture_controller_;
// These need to be destroyed after RenderInputRouter to avoid UAF bugs which
// can arise when handling acks.
base::OneShotTimer input_event_ack_timeout_;
std::optional<BrowserUIThreadScheduler::UserInputActiveHandle>
user_input_active_handle_;
// The View associated with the RenderWidgetHost. The lifetime of this object
// is associated with the lifetime of the Render process. If the Renderer
// crashes, its View is destroyed and this pointer becomes NULL, even though
// render_view_host_ lives on to load another URL (creating a new View while
// doing so).
base::WeakPtr<RenderWidgetHostViewBase> view_;
// Receives and handles input events.
std::unique_ptr<input::RenderInputRouter> render_input_router_;
base::CallbackListSubscription
render_process_blocked_state_changed_subscription_;
std::unique_ptr<input::TimeoutMonitor> new_content_rendering_timeout_;
int next_browser_snapshot_id_ = 1;
using PendingSnapshotMap = std::map<int, GetSnapshotFromBrowserCallback>;
PendingSnapshotMap pending_browser_snapshots_;
PendingSnapshotMap pending_surface_browser_snapshots_;
// Indicates whether this RenderWidgetHost thinks is focused. This is trying
// to match what the renderer process knows. It is different from
// RenderWidgetHostView::HasFocus in that in that the focus request may fail,
// causing HasFocus to return false when is_focused_ is true.
bool is_focused_ = false;
// Indicates whether what the last focus active state that was sent to the
// renderer.
bool is_active_ = false;
// This value indicates how long to wait before we consider a renderer hung.
base::TimeDelta hung_renderer_delay_;
// This value indicates how long to wait for a new compositor frame from a
// renderer process before clearing any previously displayed content.
base::TimeDelta new_content_rendering_delay_;
// When true, the RenderWidget is regularly sending updates regarding
// composition info. It should only be true when there is a focused editable
// node.
bool monitoring_composition_info_ = false;
#if BUILDFLAG(IS_MAC)
mojo::Remote<device::mojom::WakeLock> wake_lock_;
#endif
// Stash a request to create a CompositorFrameSink if it arrives before we
// have a view.
base::OnceCallback<void(uint32_t, const viz::FrameSinkId&)>
create_frame_sink_callback_;
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue_;
std::optional<uint16_t> screen_orientation_angle_for_testing_;
std::optional<display::mojom::ScreenOrientation>
screen_orientation_type_for_testing_;
RenderFrameMetadataProviderImpl render_frame_metadata_provider_;
bool surface_id_allocation_suppressed_ = false;
const viz::FrameSinkId frame_sink_id_;
// Used to avoid unnecessary IPC calls when ForwardDelegatedInkPoint receives
// the same point twice.
std::optional<gfx::DelegatedInkPoint> last_delegated_ink_point_sent_;
bool sent_autoscroll_scroll_begin_ = false;
gfx::PointF autoscroll_start_position_;
// Counter for possible-activation-triggering input event.
int pending_user_activation_counter_ = 0;
// This timer resets |pending_user_activation_counter_| after a short delay.
// See comments on Add/ClearPendingUserActivation().
base::OneShotTimer pending_user_activation_timer_;
input::InputRouterImpl::RequestMouseLockCallback request_pointer_lock_callback_;
ui::mojom::TextInputStatePtr saved_text_input_state_for_suppression_;
// Parameters to pass to blink::mojom::Widget::WasShown after
// `waiting_for_init_` becomes true. These are stored in a struct instead of
// storing a callback so that they can be updated if
// RequestSuccessfulPresentationTimeForNextFrame is called while waiting.
struct PendingShowParams {
PendingShowParams(bool is_evicted,
blink::mojom::RecordContentToVisibleTimeRequestPtr
visible_time_request);
~PendingShowParams();
PendingShowParams(const PendingShowParams&) = delete;
PendingShowParams& operator=(const PendingShowParams&) = delete;
bool is_evicted;
blink::mojom::RecordContentToVisibleTimeRequestPtr visible_time_request;
};
std::optional<PendingShowParams> pending_show_params_;
// If this is initialized with a frame this member will be valid and
// can be used to send messages directly to blink.
mojo::AssociatedReceiver<blink::mojom::FrameWidgetHost>
blink_frame_widget_host_receiver_{this};
mojo::AssociatedRemote<blink::mojom::FrameWidget> blink_frame_widget_;
// If this is initialized with a popup this member will be valid and
// manages the lifecycle of the popup in blink.
mojo::AssociatedReceiver<blink::mojom::PopupWidgetHost>
blink_popup_widget_host_receiver_{this};
mojo::AssociatedReceiver<blink::mojom::WidgetHost>
blink_widget_host_receiver_{this};
mojo::AssociatedRemote<blink::mojom::Widget> blink_widget_;
mojo::Remote<blink::mojom::WidgetCompositor> widget_compositor_;
// Same-process cross-RenderFrameHost navigations may reuse the compositor
// from the previous RenderFrameHost. While the speculative RenderWidgetHost
// is created early, ownership of the FrameSinkId is transferred at commit.
// This bit is used to track which view owns the FrameSinkId.
//
// The renderer side WebFrameWidget's compositor can create a FrameSink and
// produce frames associated with `frame_sink_id_` only when it owns that
// FrameSinkId.
bool view_is_frame_sink_id_owner_{false};
std::unique_ptr<CompositorMetricRecorder> compositor_metric_recorder_;
std::optional<mojo::PendingRemote<blink::mojom::RenderInputRouterClient>>
viz_rir_client_remote_;
base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_{this};
};
} // namespace content
namespace base {
template <>
struct ScopedObservationTraits<content::RenderWidgetHostImpl,
content::RenderWidgetHost::InputEventObserver> {
static void AddObserver(
content::RenderWidgetHostImpl* source,
content::RenderWidgetHost::InputEventObserver* observer) {
source->AddInputEventObserver(observer);
}
static void RemoveObserver(
content::RenderWidgetHostImpl* source,
content::RenderWidgetHost::InputEventObserver* observer) {
source->RemoveInputEventObserver(observer);
}
};
} // namespace base
#endif // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_