summaryrefslogtreecommitdiffstats
path: root/dom/ipc/BrowserParent.h
blob: 63a52c6ac466f0bdcc214c92be15ff74e1225e12 (plain)
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
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_BrowserParent_h
#define mozilla_dom_BrowserParent_h

#include <utility>

#include "LiveResizeListener.h"
#include "Units.h"
#include "js/TypeDecls.h"
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/ContentCache.h"
#include "mozilla/EventForwards.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/BrowserBridgeParent.h"
#include "mozilla/dom/PBrowserParent.h"
#include "mozilla/dom/TabContext.h"
#include "mozilla/dom/VsyncParent.h"
#include "mozilla/dom/ipc/IdType.h"
#include "mozilla/layout/RemoteLayerTreeOwner.h"
#include "nsCOMPtr.h"
#include "nsIAuthPromptProvider.h"
#include "nsIBrowserDOMWindow.h"
#include "nsIDOMEventListener.h"
#include "nsIFilePicker.h"
#include "nsIRemoteTab.h"
#include "nsIWidget.h"
#include "nsTArray.h"
#include "nsWeakReference.h"

class imgIContainer;
class nsCycleCollectionTraversalCallback;
class nsDocShellLoadState;
class nsFrameLoader;
class nsIBrowser;
class nsIContent;
class nsIContentSecurityPolicy;
class nsIDocShell;
class nsILoadContext;
class nsIPrincipal;
class nsIRequest;
class nsIURI;
class nsIWebBrowserPersistDocumentReceiver;
class nsIWebProgress;
class nsIXULBrowserWindow;
class nsPIDOMWindowOuter;

namespace mozilla {

namespace a11y {
class DocAccessibleParent;
}

namespace widget {
struct IMENotification;
}  // namespace widget

namespace gfx {
class SourceSurface;
}  // namespace gfx

namespace dom {

class CanonicalBrowsingContext;
class ClonedMessageData;
class ContentParent;
class Element;
class DataTransfer;
class BrowserHost;
class BrowserBridgeParent;

namespace ipc {
class StructuredCloneData;
}  // namespace ipc

/**
 * BrowserParent implements the parent actor part of the PBrowser protocol. See
 * PBrowser for more information.
 */
class BrowserParent final : public PBrowserParent,
                            public nsIDOMEventListener,
                            public nsIAuthPromptProvider,
                            public nsSupportsWeakReference,
                            public TabContext,
                            public LiveResizeListener {
  typedef mozilla::dom::ClonedMessageData ClonedMessageData;
  using TapType = GeckoContentController_TapType;

  friend class PBrowserParent;

  virtual ~BrowserParent();

 public:
  // Helper class for ContentParent::RecvCreateWindow.
  struct AutoUseNewTab;

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_NSIAUTHPROMPTPROVIDER
  // nsIDOMEventListener interfaces
  NS_DECL_NSIDOMEVENTLISTENER

  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(BrowserParent, nsIDOMEventListener)

  BrowserParent(ContentParent* aManager, const TabId& aTabId,
                const TabContext& aContext,
                CanonicalBrowsingContext* aBrowsingContext,
                uint32_t aChromeFlags);

  /**
   * Returns the focused BrowserParent or nullptr if chrome or another app
   * is focused.
   */
  static BrowserParent* GetFocused();

  static BrowserParent* GetLastMouseRemoteTarget();

  static BrowserParent* GetFrom(nsFrameLoader* aFrameLoader);

  static BrowserParent* GetFrom(PBrowserParent* aBrowserParent);

  static BrowserParent* GetFrom(nsIContent* aContent);

  static BrowserParent* GetBrowserParentFromLayersId(
      layers::LayersId aLayersId);

  static TabId GetTabIdFrom(nsIDocShell* docshell);

  const TabId GetTabId() const { return mTabId; }

  ContentParent* Manager() const { return mManager; }

  CanonicalBrowsingContext* GetBrowsingContext() { return mBrowsingContext; }

  void RecomputeProcessPriority();

  already_AddRefed<nsILoadContext> GetLoadContext();

  Element* GetOwnerElement() const { return mFrameElement; }

  nsIBrowserDOMWindow* GetBrowserDOMWindow() const { return mBrowserDOMWindow; }

  already_AddRefed<nsPIDOMWindowOuter> GetParentWindowOuter();

  already_AddRefed<nsIWidget> GetTopLevelWidget();

  // Returns the closest widget for our frameloader's content.
  already_AddRefed<nsIWidget> GetWidget() const;

  // Returns the top-level widget for our frameloader's document.
  already_AddRefed<nsIWidget> GetDocWidget() const;

  /**
   * Returns the widget which may have native focus and handles text input
   * like keyboard input, IME, etc.
   */
  already_AddRefed<nsIWidget> GetTextInputHandlingWidget() const;

  nsIXULBrowserWindow* GetXULBrowserWindow();

  static uint32_t GetMaxTouchPoints(Element* aElement);
  uint32_t GetMaxTouchPoints() { return GetMaxTouchPoints(mFrameElement); }

  /**
   * Return the top level DocAccessibleParent for this BrowserParent.
   * Note that in the case of an out-of-process iframe, the returned actor
   * might not be at the top level of the DocAccessibleParent tree; i.e. it
   * might have a parent. However, it will be at the top level in its content
   * process. That is, doc->IsTopLevelInContentProcess() will always be true,
   * but doc->IsTopLevel() might not.
   */
  a11y::DocAccessibleParent* GetTopLevelDocAccessible() const;

  LayersId GetLayersId() const;

  // Returns the BrowserBridgeParent if this BrowserParent is for an
  // out-of-process iframe and nullptr otherwise.
  BrowserBridgeParent* GetBrowserBridgeParent() const;

  // Returns the BrowserHost if this BrowserParent is for a top-level browser
  // and nullptr otherwise.
  BrowserHost* GetBrowserHost() const;

  ParentShowInfo GetShowInfo();

  // Get the content principal from the owner element.
  already_AddRefed<nsIPrincipal> GetContentPrincipal() const;

  /**
   * Let managees query if Destroy() is already called so they don't send out
   * messages when the PBrowser actor is being destroyed.
   */
  bool IsDestroyed() const { return mIsDestroyed; }

  /**
   * Returns whether we're in the process of creating a new window (from
   * window.open). If so, LoadURL calls are being skipped until everything is
   * set up. For further details, see `mCreatingWindow` below.
   */
  bool CreatingWindow() const { return mCreatingWindow; }

  /*
   * Visit each BrowserParent in the tree formed by PBrowser and
   * PBrowserBridge, including `this`.
   */
  template <typename Callback>
  void VisitAll(Callback aCallback) {
    aCallback(this);
    VisitAllDescendants(aCallback);
  }

  /*
   * Visit each BrowserParent in the tree formed by PBrowser and
   * PBrowserBridge, excluding `this`.
   */
  template <typename Callback>
  void VisitAllDescendants(Callback aCallback) {
    const auto& browserBridges = ManagedPBrowserBridgeParent();
    for (const auto& key : browserBridges) {
      BrowserBridgeParent* browserBridge =
          static_cast<BrowserBridgeParent*>(key);
      BrowserParent* browserParent = browserBridge->GetBrowserParent();

      aCallback(browserParent);
      browserParent->VisitAllDescendants(aCallback);
    }
  }

  /*
   * Visit each BrowserBridgeParent that is a child of this BrowserParent.
   */
  template <typename Callback>
  void VisitChildren(Callback aCallback) {
    const auto& browserBridges = ManagedPBrowserBridgeParent();
    for (const auto& key : browserBridges) {
      BrowserBridgeParent* browserBridge =
          static_cast<BrowserBridgeParent*>(key);
      aCallback(browserBridge);
    }
  }

  void SetOwnerElement(Element* aElement);

  void SetBrowserDOMWindow(nsIBrowserDOMWindow* aBrowserDOMWindow) {
    mBrowserDOMWindow = aBrowserDOMWindow;
  }

  void SwapFrameScriptsFrom(nsTArray<FrameScriptInfo>& aFrameScripts) {
    aFrameScripts.SwapElements(mDelayedFrameScripts);
  }

  void CacheFrameLoader(nsFrameLoader* aFrameLoader);

  void Destroy();

  void RemoveWindowListeners();

  void AddWindowListeners();

  mozilla::ipc::IPCResult RecvDidUnsuppressPainting();
  mozilla::ipc::IPCResult RecvDidUnsuppressPaintingNormalPriority() {
    return RecvDidUnsuppressPainting();
  }
  mozilla::ipc::IPCResult RecvMoveFocus(const bool& aForward,
                                        const bool& aForDocumentNavigation);

  mozilla::ipc::IPCResult RecvDropLinks(nsTArray<nsString>&& aLinks);

  // TODO: Use MOZ_CAN_RUN_SCRIPT when it gains IPDL support (bug 1539864)
  MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult RecvReplyKeyEvent(
      const WidgetKeyboardEvent& aEvent, const nsID& aUUID);

  // TODO: Use MOZ_CAN_RUN_SCRIPT when it gains IPDL support (bug 1539864)
  MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult RecvAccessKeyNotHandled(
      const WidgetKeyboardEvent& aEvent);

  mozilla::ipc::IPCResult RecvRegisterProtocolHandler(const nsString& aScheme,
                                                      nsIURI* aHandlerURI,
                                                      const nsString& aTitle,
                                                      nsIURI* aDocURI);

  mozilla::ipc::IPCResult RecvOnStateChange(
      const WebProgressData& aWebProgressData, const RequestData& aRequestData,
      const uint32_t aStateFlags, const nsresult aStatus,
      const Maybe<WebProgressStateChangeData>& aStateChangeData);

  mozilla::ipc::IPCResult RecvOnProgressChange(const int32_t aCurTotalProgres,
                                               const int32_t aMaxTotalProgress);

  mozilla::ipc::IPCResult RecvOnLocationChange(
      const WebProgressData& aWebProgressData, const RequestData& aRequestData,
      nsIURI* aLocation, const uint32_t aFlags, const bool aCanGoBack,
      const bool aCanGoForward,
      const Maybe<WebProgressLocationChangeData>& aLocationChangeData);

  mozilla::ipc::IPCResult RecvOnStatusChange(const nsString& aMessage);

  mozilla::ipc::IPCResult RecvNotifyContentBlockingEvent(
      const uint32_t& aEvent, const RequestData& aRequestData,
      const bool aBlocked, const nsACString& aTrackingOrigin,
      nsTArray<nsCString>&& aTrackingFullHashes,
      const Maybe<mozilla::ContentBlockingNotifier::
                      StorageAccessPermissionGrantedReason>& aReason,
      const Maybe<mozilla::ContentBlockingNotifier::CanvasFingerprinter>&
          aCanvasFingerprinter,
      const Maybe<bool>& aCanvasFingerprinterKnownText);

  mozilla::ipc::IPCResult RecvNavigationFinished();

  already_AddRefed<nsIBrowser> GetBrowser();

  already_AddRefed<CanonicalBrowsingContext> BrowsingContextForWebProgress(
      const WebProgressData& aWebProgressData);

  mozilla::ipc::IPCResult RecvIntrinsicSizeOrRatioChanged(
      const Maybe<IntrinsicSize>& aIntrinsicSize,
      const Maybe<AspectRatio>& aIntrinsicRatio);

  mozilla::ipc::IPCResult RecvImageLoadComplete(const nsresult& aResult);

  mozilla::ipc::IPCResult RecvSyncMessage(
      const nsString& aMessage, const ClonedMessageData& aData,
      nsTArray<ipc::StructuredCloneData>* aRetVal);

  mozilla::ipc::IPCResult RecvAsyncMessage(const nsString& aMessage,
                                           const ClonedMessageData& aData);

  mozilla::ipc::IPCResult RecvNotifyIMEFocus(
      const ContentCache& aContentCache,
      const widget::IMENotification& aEventMessage,
      NotifyIMEFocusResolver&& aResolve);

  mozilla::ipc::IPCResult RecvNotifyIMETextChange(
      const ContentCache& aContentCache,
      const widget::IMENotification& aEventMessage);

  mozilla::ipc::IPCResult RecvNotifyIMECompositionUpdate(
      const ContentCache& aContentCache,
      const widget::IMENotification& aEventMessage);

  mozilla::ipc::IPCResult RecvNotifyIMESelection(
      const ContentCache& aContentCache,
      const widget::IMENotification& aEventMessage);

  mozilla::ipc::IPCResult RecvUpdateContentCache(
      const ContentCache& aContentCache);

  mozilla::ipc::IPCResult RecvNotifyIMEMouseButtonEvent(
      const widget::IMENotification& aEventMessage, bool* aConsumedByIME);

  mozilla::ipc::IPCResult RecvNotifyIMEPositionChange(
      const ContentCache& aContentCache,
      const widget::IMENotification& aEventMessage);

  mozilla::ipc::IPCResult RecvOnEventNeedingAckHandled(
      const EventMessage& aMessage, const uint32_t& aCompositionId);

  mozilla::ipc::IPCResult RecvRequestIMEToCommitComposition(
      const bool& aCancel, const uint32_t& aCompositionId, bool* aIsCommitted,
      nsString* aCommittedString);

  mozilla::ipc::IPCResult RecvGetInputContext(widget::IMEState* aIMEState);

  mozilla::ipc::IPCResult RecvSetInputContext(
      const widget::InputContext& aContext,
      const widget::InputContextAction& aAction);

  mozilla::ipc::IPCResult RecvRequestFocus(const bool& aCanRaise,
                                           const CallerType aCallerType);

  mozilla::ipc::IPCResult RecvWheelZoomChange(bool aIncrease);

  mozilla::ipc::IPCResult RecvLookUpDictionary(
      const nsString& aText, nsTArray<mozilla::FontRange>&& aFontRangeArray,
      const bool& aIsVertical, const LayoutDeviceIntPoint& aPoint);

  mozilla::ipc::IPCResult RecvEnableDisableCommands(
      const MaybeDiscarded<BrowsingContext>& aContext, const nsString& aAction,
      nsTArray<nsCString>&& aEnabledCommands,
      nsTArray<nsCString>&& aDisabledCommands);

  mozilla::ipc::IPCResult RecvSetCursor(
      const nsCursor& aValue, const bool& aHasCustomCursor,
      Maybe<BigBuffer>&& aCursorData, const uint32_t& aWidth,
      const uint32_t& aHeight, const float& aResolutionX,
      const float& aResolutionY, const uint32_t& aStride,
      const gfx::SurfaceFormat& aFormat, const uint32_t& aHotspotX,
      const uint32_t& aHotspotY, const bool& aForce);

  mozilla::ipc::IPCResult RecvSetLinkStatus(const nsString& aStatus);

  mozilla::ipc::IPCResult RecvShowTooltip(const uint32_t& aX,
                                          const uint32_t& aY,
                                          const nsString& aTooltip,
                                          const nsString& aDirection);

  mozilla::ipc::IPCResult RecvHideTooltip();

  mozilla::ipc::IPCResult RecvRespondStartSwipeEvent(
      const uint64_t& aInputBlockId, const bool& aStartSwipe);

  mozilla::ipc::IPCResult RecvDispatchWheelEvent(
      const mozilla::WidgetWheelEvent& aEvent);

  mozilla::ipc::IPCResult RecvDispatchMouseEvent(
      const mozilla::WidgetMouseEvent& aEvent);

  mozilla::ipc::IPCResult RecvDispatchKeyboardEvent(
      const mozilla::WidgetKeyboardEvent& aEvent);

  mozilla::ipc::IPCResult RecvDispatchTouchEvent(
      const mozilla::WidgetTouchEvent& aEvent);

  mozilla::ipc::IPCResult RecvScrollRectIntoView(
      const nsRect& aRect, const ScrollAxis& aVertical,
      const ScrollAxis& aHorizontal, const ScrollFlags& aScrollFlags,
      const int32_t& aAppUnitsPerDevPixel);

  already_AddRefed<PColorPickerParent> AllocPColorPickerParent(
      const nsString& aTitle, const nsString& aInitialColor,
      const nsTArray<nsString>& aDefaultColors);

  PVsyncParent* AllocPVsyncParent();

  bool DeallocPVsyncParent(PVsyncParent* aActor);

#ifdef ACCESSIBILITY
  PDocAccessibleParent* AllocPDocAccessibleParent(
      PDocAccessibleParent*, const uint64_t&,
      const MaybeDiscardedBrowsingContext&);
  bool DeallocPDocAccessibleParent(PDocAccessibleParent*);
  virtual mozilla::ipc::IPCResult RecvPDocAccessibleConstructor(
      PDocAccessibleParent* aDoc, PDocAccessibleParent* aParentDoc,
      const uint64_t& aParentID,
      const MaybeDiscardedBrowsingContext& aBrowsingContext) override;
#endif

  already_AddRefed<PSessionStoreParent> AllocPSessionStoreParent();

  mozilla::ipc::IPCResult RecvNewWindowGlobal(
      ManagedEndpoint<PWindowGlobalParent>&& aEndpoint,
      const WindowGlobalInit& aInit);

  mozilla::ipc::IPCResult RecvIsWindowSupportingProtectedMedia(
      const uint64_t& aOuterWindowID,
      IsWindowSupportingProtectedMediaResolver&& aResolve);

  mozilla::ipc::IPCResult RecvIsWindowSupportingWebVR(
      const uint64_t& aOuterWindowID,
      IsWindowSupportingWebVRResolver&& aResolve);

  void LoadURL(nsDocShellLoadState* aLoadState);

  void ResumeLoad(uint64_t aPendingSwitchID);

  void InitRendering();
  bool AttachWindowRenderer();
  void MaybeShowFrame();

  bool Show(const OwnerShowInfo&);

  void UpdateDimensions(const nsIntRect& aRect, const ScreenIntSize& aSize);

  DimensionInfo GetDimensionInfo();

  nsresult UpdatePosition();

  // Notify position update to all descendant documents in this browser parent.
  // NOTE: This should use only for browsers in popup windows attached to the
  // main browser window.
  void NotifyPositionUpdatedForContentsInPopup();

  void SizeModeChanged(const nsSizeMode& aSizeMode);

  void HandleAccessKey(const WidgetKeyboardEvent& aEvent,
                       nsTArray<uint32_t>& aCharCodes);

#if defined(MOZ_WIDGET_ANDROID)
  void DynamicToolbarMaxHeightChanged(ScreenIntCoord aHeight);
  void DynamicToolbarOffsetChanged(ScreenIntCoord aOffset);
#endif

  void Activate(uint64_t aActionId);

  void Deactivate(bool aWindowLowering, uint64_t aActionId);

  void MouseEnterIntoWidget();

  bool MapEventCoordinatesForChildProcess(mozilla::WidgetEvent* aEvent);

  void MapEventCoordinatesForChildProcess(const LayoutDeviceIntPoint& aOffset,
                                          mozilla::WidgetEvent* aEvent);

  LayoutDeviceToCSSScale GetLayoutDeviceToCSSScale();

  MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult
  RecvRequestNativeKeyBindings(const uint32_t& aType,
                               const mozilla::WidgetKeyboardEvent& aEvent,
                               nsTArray<mozilla::CommandInt>* aCommands);

  mozilla::ipc::IPCResult RecvSynthesizeNativeKeyEvent(
      const int32_t& aNativeKeyboardLayout, const int32_t& aNativeKeyCode,
      const uint32_t& aModifierFlags, const nsString& aCharacters,
      const nsString& aUnmodifiedCharacters, const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativeMouseEvent(
      const LayoutDeviceIntPoint& aPoint, const uint32_t& aNativeMessage,
      const int16_t& aButton, const uint32_t& aModifierFlags,
      const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativeMouseMove(
      const LayoutDeviceIntPoint& aPoint, const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativeMouseScrollEvent(
      const LayoutDeviceIntPoint& aPoint, const uint32_t& aNativeMessage,
      const double& aDeltaX, const double& aDeltaY, const double& aDeltaZ,
      const uint32_t& aModifierFlags, const uint32_t& aAdditionalFlags,
      const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativeTouchPoint(
      const uint32_t& aPointerId, const TouchPointerState& aPointerState,
      const LayoutDeviceIntPoint& aPoint, const double& aPointerPressure,
      const uint32_t& aPointerOrientation, const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativeTouchPadPinch(
      const TouchpadGesturePhase& aEventPhase, const float& aScale,
      const LayoutDeviceIntPoint& aPoint, const int32_t& aModifierFlags);

  mozilla::ipc::IPCResult RecvSynthesizeNativeTouchTap(
      const LayoutDeviceIntPoint& aPoint, const bool& aLongTap,
      const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvClearNativeTouchSequence(
      const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativePenInput(
      const uint32_t& aPointerId, const TouchPointerState& aPointerState,
      const LayoutDeviceIntPoint& aPoint, const double& aPressure,
      const uint32_t& aRotation, const int32_t& aTiltX, const int32_t& aTiltY,
      const int32_t& aButton, const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvSynthesizeNativeTouchpadDoubleTap(
      const LayoutDeviceIntPoint& aPoint, const uint32_t& aModifierFlags);

  mozilla::ipc::IPCResult RecvSynthesizeNativeTouchpadPan(
      const TouchpadGesturePhase& aEventPhase,
      const LayoutDeviceIntPoint& aPoint, const double& aDeltaX,
      const double& aDeltaY, const int32_t& aModifierFlags,
      const uint64_t& aObserverId);

  mozilla::ipc::IPCResult RecvLockNativePointer();

  mozilla::ipc::IPCResult RecvUnlockNativePointer();

  /**
   * The following Send*Event() marks aEvent as posted to remote process if
   * it succeeded.  So, you can check the result with
   * aEvent.HasBeenPostedToRemoteProcess().
   */
  void SendRealMouseEvent(WidgetMouseEvent& aEvent);

  void SendRealDragEvent(WidgetDragEvent& aEvent, uint32_t aDragAction,
                         uint32_t aDropEffect, nsIPrincipal* aPrincipal,
                         nsIContentSecurityPolicy* aCsp);

  void SendMouseWheelEvent(WidgetWheelEvent& aEvent);

  /**
   * Only when the event is synthesized, retrieving writing mode may flush
   * the layout.
   */
  MOZ_CAN_RUN_SCRIPT_BOUNDARY void SendRealKeyEvent(
      WidgetKeyboardEvent& aEvent);

  void SendRealTouchEvent(WidgetTouchEvent& aEvent);

  /**
   * Different from above Send*Event(), these methods return true if the
   * event has been posted to the remote process or failed to do that but
   * shouldn't be handled by following event listeners.
   * If you need to check if it's actually posted to the remote process,
   * you can refer aEvent.HasBeenPostedToRemoteProcess().
   */
  bool SendCompositionEvent(mozilla::WidgetCompositionEvent& aEvent,
                            uint32_t aCompositionId);

  bool SendSelectionEvent(mozilla::WidgetSelectionEvent& aEvent);

  MOZ_CAN_RUN_SCRIPT_BOUNDARY bool SendHandleTap(
      TapType aType, const LayoutDevicePoint& aPoint, Modifiers aModifiers,
      const ScrollableLayerGuid& aGuid, uint64_t aInputBlockId,
      const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics);

  already_AddRefed<PFilePickerParent> AllocPFilePickerParent(
      const nsString& aTitle, const nsIFilePicker::Mode& aMode,
      const MaybeDiscarded<BrowsingContext>& aBrowsingContext);

  bool GetGlobalJSObject(JSContext* cx, JSObject** globalp);

  void StartPersistence(CanonicalBrowsingContext* aContext,
                        nsIWebBrowserPersistDocumentReceiver* aRecv,
                        ErrorResult& aRv);

  bool HandleQueryContentEvent(mozilla::WidgetQueryContentEvent& aEvent);

  bool SendInsertText(const nsString& aStringToInsert);

  bool SendPasteTransferable(IPCTransferable&& aTransferable);

  // Helper for transforming a point
  LayoutDeviceIntPoint TransformPoint(
      const LayoutDeviceIntPoint& aPoint,
      const LayoutDeviceToLayoutDeviceMatrix4x4& aMatrix);
  LayoutDevicePoint TransformPoint(
      const LayoutDevicePoint& aPoint,
      const LayoutDeviceToLayoutDeviceMatrix4x4& aMatrix);

  // Transform a coordinate from the parent process coordinate space to the
  // child process coordinate space.
  LayoutDeviceIntPoint TransformParentToChild(const WidgetMouseEvent& aEvent);
  LayoutDeviceIntPoint TransformParentToChild(
      const LayoutDeviceIntPoint& aPoint);
  LayoutDevicePoint TransformParentToChild(const LayoutDevicePoint& aPoint);

  // Transform a coordinate from the child process coordinate space to the
  // parent process coordinate space.
  LayoutDeviceIntPoint TransformChildToParent(
      const LayoutDeviceIntPoint& aPoint);
  LayoutDevicePoint TransformChildToParent(const LayoutDevicePoint& aPoint);
  LayoutDeviceIntRect TransformChildToParent(const LayoutDeviceIntRect& aRect);

  // Returns the matrix that transforms event coordinates from the coordinate
  // space of the child process to the coordinate space of the parent process.
  LayoutDeviceToLayoutDeviceMatrix4x4 GetChildToParentConversionMatrix();

  void SetChildToParentConversionMatrix(
      const Maybe<LayoutDeviceToLayoutDeviceMatrix4x4>& aMatrix,
      const ScreenRect& aRemoteDocumentRect);

  // Returns the offset from the origin of our frameloader's nearest widget to
  // the origin of its layout frame. This offset is used to translate event
  // coordinates relative to the PuppetWidget origin in the child process.
  //
  // GOING AWAY. PLEASE AVOID ADDING CALLERS. Use the above tranformation
  // methods instead.
  LayoutDeviceIntPoint GetChildProcessOffset();

  // Returns the offset from the on-screen origin of our top-level window's
  // widget (including window decorations) to the origin of our frameloader's
  // nearest widget. This offset is used to translate coordinates from the
  // PuppetWidget's origin to absolute screen coordinates in the child.
  LayoutDeviceIntPoint GetClientOffset();

  void StopIMEStateManagement();

  PPaymentRequestParent* AllocPPaymentRequestParent();

  bool DeallocPPaymentRequestParent(PPaymentRequestParent* aActor);

  bool SendLoadRemoteScript(const nsAString& aURL,
                            const bool& aRunInGlobalScope);

  void LayerTreeUpdate(bool aActive);

  mozilla::ipc::IPCResult RecvInvokeDragSession(
      nsTArray<IPCTransferableData>&& aTransferables, const uint32_t& aAction,
      Maybe<BigBuffer>&& aVisualDnDData, const uint32_t& aStride,
      const gfx::SurfaceFormat& aFormat, const LayoutDeviceIntRect& aDragRect,
      nsIPrincipal* aPrincipal, nsIContentSecurityPolicy* aCsp,
      const CookieJarSettingsArgs& aCookieJarSettingsArgs,
      const MaybeDiscarded<WindowContext>& aSourceWindowContext,
      const MaybeDiscarded<WindowContext>& aSourceTopWindowContext);

  void AddInitialDnDDataTo(IPCTransferableData* aTransferableData,
                           nsIPrincipal** aPrincipal);

  bool TakeDragVisualization(RefPtr<mozilla::gfx::SourceSurface>& aSurface,
                             LayoutDeviceIntRect* aDragRect);

  mozilla::ipc::IPCResult RecvEnsureLayersConnected(
      CompositorOptions* aCompositorOptions);

  // LiveResizeListener implementation
  void LiveResizeStarted() override;
  void LiveResizeStopped() override;

  void SetReadyToHandleInputEvents() { mIsReadyToHandleInputEvents = true; }
  bool IsReadyToHandleInputEvents() { return mIsReadyToHandleInputEvents; }

  void NavigateByKey(bool aForward, bool aForDocumentNavigation);

  bool GetDocShellIsActive();
  void SetDocShellIsActive(bool aDocShellIsActive);

  bool GetHasPresented();
  bool GetHasLayers();
  bool GetRenderLayers();
  void SetRenderLayers(bool aRenderLayers);
  bool GetPriorityHint();
  void SetPriorityHint(bool aPriorityHint);
  void PreserveLayers(bool aPreserveLayers);
  void NotifyResolutionChanged();

  bool CanCancelContentJS(nsIRemoteTab::NavigationType aNavigationType,
                          int32_t aNavigationIndex,
                          nsIURI* aNavigationURI) const;

  // Called when the BrowserParent is being destroyed or entering bfcache.
  void Deactivated();

 protected:
  friend BrowserBridgeParent;
  friend BrowserHost;

  void SetBrowserBridgeParent(BrowserBridgeParent* aBrowser);
  void SetBrowserHost(BrowserHost* aBrowser);

  bool ReceiveMessage(
      const nsString& aMessage, bool aSync, ipc::StructuredCloneData* aData,
      nsTArray<ipc::StructuredCloneData>* aJSONRetVal = nullptr);

  virtual void ActorDestroy(ActorDestroyReason why) override;

  mozilla::ipc::IPCResult RecvRemoteIsReadyToHandleInputEvents();

  mozilla::ipc::IPCResult RecvSetDimensions(mozilla::DimensionRequest aRequest,
                                            const double& aScale);

  mozilla::ipc::IPCResult RecvShowCanvasPermissionPrompt(
      const nsCString& aOrigin, const bool& aHideDoorHanger);

  mozilla::ipc::IPCResult RecvSetSystemFont(const nsCString& aFontName);
  mozilla::ipc::IPCResult RecvGetSystemFont(nsCString* aFontName);

  mozilla::ipc::IPCResult RecvVisitURI(nsIURI* aURI, nsIURI* aLastVisitedURI,
                                       const uint32_t& aFlags,
                                       const uint64_t& aBrowserId);

  mozilla::ipc::IPCResult RecvQueryVisitedState(
      nsTArray<RefPtr<nsIURI>>&& aURIs);

  mozilla::ipc::IPCResult RecvMaybeFireEmbedderLoadEvents(
      EmbedderElementEventType aFireEventAtEmbeddingElement);

  mozilla::ipc::IPCResult RecvRequestPointerLock(
      RequestPointerLockResolver&& aResolve);
  mozilla::ipc::IPCResult RecvReleasePointerLock();

  mozilla::ipc::IPCResult RecvRequestPointerCapture(
      const uint32_t& aPointerId, RequestPointerCaptureResolver&& aResolve);
  mozilla::ipc::IPCResult RecvReleasePointerCapture(const uint32_t& aPointerId);

  mozilla::ipc::IPCResult RecvShowDynamicToolbar();

 private:
  void SuppressDisplayport(bool aEnabled);

  void SetRenderLayersInternal(bool aEnabled);

  already_AddRefed<nsFrameLoader> GetFrameLoader(
      bool aUseCachedFrameLoaderAfterDestroy = false) const;

  void TryCacheDPIAndScale();

  bool AsyncPanZoomEnabled() const;

  // Update state prior to routing an APZ-aware event to the child process.
  // |aOutTargetGuid| will contain the identifier
  // of the APZC instance that handled the event. aOutTargetGuid may be null.
  // |aOutInputBlockId| will contain the identifier of the input block
  // that this event was added to, if there was one. aOutInputBlockId may be
  // null. |aOutApzResponse| will contain the response that the APZ gave when
  // processing the input block; this is used for generating appropriate
  // pointercancel events.
  void ApzAwareEventRoutingToChild(ScrollableLayerGuid* aOutTargetGuid,
                                   uint64_t* aOutInputBlockId,
                                   nsEventStatus* aOutApzResponse);

  // When dropping links we perform a roundtrip from
  // Parent (SendRealDragEvent) -> Child -> Parent (RecvDropLinks)
  // and have to ensure that the child did not modify links to be loaded.
  bool QueryDropLinksForVerification();

  void UnlockNativePointer();

  void UpdateNativePointerLockCenter(nsIWidget* aWidget);

 private:
  // This is used when APZ needs to find the BrowserParent associated with a
  // layer to dispatch events.
  typedef nsTHashMap<nsUint64HashKey, BrowserParent*> LayerToBrowserParentTable;
  static LayerToBrowserParentTable* sLayerToBrowserParentTable;

  static void AddBrowserParentToTable(layers::LayersId aLayersId,
                                      BrowserParent* aBrowserParent);

  static void RemoveBrowserParentFromTable(layers::LayersId aLayersId);

  // Keeps track of which BrowserParent has keyboard focus.
  // If nullptr, the parent process has focus.
  // Use UpdateFocus() to manage.
  static BrowserParent* sFocus;

  // Keeps track of which top-level BrowserParent the keyboard focus is under.
  // If nullptr, the parent process has focus.
  // Use SetTopLevelWebFocus and UnsetTopLevelWebFocus to manage.
  static BrowserParent* sTopLevelWebFocus;

  // Setter for sTopLevelWebFocus
  static void SetTopLevelWebFocus(BrowserParent* aBrowserParent);

  // Unsetter for sTopLevelWebFocus; only unsets if argument matches
  // current sTopLevelWebFocus. Use UnsetTopLevelWebFocusAll() to
  // unset regardless of current value.
  static void UnsetTopLevelWebFocus(BrowserParent* aBrowserParent);

  // Recomputes sFocus and returns it.
  static BrowserParent* UpdateFocus();

  // Keeps track of which BrowserParent the real mouse event is sent to.
  static BrowserParent* sLastMouseRemoteTarget;

  // Unsetter for LastMouseRemoteTarget; only unsets if argument matches
  // current sLastMouseRemoteTarget.
  static void UnsetLastMouseRemoteTarget(BrowserParent* aBrowserParent);

  struct APZData {
    bool operator==(const APZData& aOther) const {
      return aOther.guid == guid && aOther.blockId == blockId &&
             aOther.apzResponse == apzResponse;
    }

    bool operator!=(const APZData& aOther) const { return !(*this == aOther); }

    ScrollableLayerGuid guid;
    uint64_t blockId;
    nsEventStatus apzResponse;
  };
  void SendRealTouchMoveEvent(WidgetTouchEvent& aEvent, APZData& aAPZData,
                              uint32_t aConsecutiveTouchMoveCount);

  void UpdateVsyncParentVsyncDispatcher();

 public:
  // Unsets sTopLevelWebFocus regardless of its current value.
  static void UnsetTopLevelWebFocusAll();

  // Recomputes focus when the BrowsingContext tree changes in a
  // way that potentially invalidates the sFocus.
  static void UpdateFocusFromBrowsingContext();

 private:
  TabId mTabId;

  RefPtr<ContentParent> mManager;
  // The root browsing context loaded in this BrowserParent.
  RefPtr<CanonicalBrowsingContext> mBrowsingContext;
  nsCOMPtr<nsILoadContext> mLoadContext;
  RefPtr<Element> mFrameElement;
  nsCOMPtr<nsIBrowserDOMWindow> mBrowserDOMWindow;
  // We keep a strong reference to the frameloader after we've sent the
  // Destroy message and before we've received __delete__. This allows us to
  // dispatch message manager messages during this time.
  RefPtr<nsFrameLoader> mFrameLoader;
  uint32_t mChromeFlags;

  // Pointer back to BrowserBridgeParent if there is one associated with
  // this BrowserParent. This is non-owning to avoid cycles and is managed
  // by the BrowserBridgeParent instance, which has the strong reference
  // to this BrowserParent.
  BrowserBridgeParent* mBrowserBridgeParent;
  // Pointer to the BrowserHost that owns us, if any. This is mutually
  // exclusive with mBrowserBridgeParent, and one is guaranteed to be
  // non-null.
  BrowserHost* mBrowserHost;

  ContentCacheInParent mContentCache;

  layout::RemoteLayerTreeOwner mRemoteLayerTreeOwner;

  Maybe<LayoutDeviceToLayoutDeviceMatrix4x4> mChildToParentConversionMatrix;
  Maybe<ScreenRect> mRemoteDocumentRect;

  // mWaitingReplyKeyboardEvents stores keyboard events which are sent from
  // SendRealKeyEvent and the event will be back as a reply event.  They are
  // removed when RecvReplyKeyEvent receives corresponding event or newer event.
  // Note that reply event will be used for handling non-reserved shortcut keys.
  // Therefore, we need to store only important data for GlobalKeyHandler.
  struct SentKeyEventData {
    uint32_t mKeyCode;
    uint32_t mCharCode;
    uint32_t mPseudoCharCode;
    KeyNameIndex mKeyNameIndex;
    CodeNameIndex mCodeNameIndex;
    Modifiers mModifiers;
    nsID mUUID;
  };
  nsTArray<SentKeyEventData> mWaitingReplyKeyboardEvents;

  nsIntRect mRect;
  ScreenIntSize mDimensions;
  float mDPI;
  int32_t mRounding;
  CSSToLayoutDeviceScale mDefaultScale;
  bool mUpdatedDimensions;
  nsSizeMode mSizeMode;
  LayoutDeviceIntPoint mClientOffset;
  LayoutDeviceIntPoint mChromeOffset;

  // When loading a new tab or window via window.open, the child is
  // responsible for loading the URL it wants into the new BrowserChild. When
  // the parent receives the CreateWindow message, though, it sends a LoadURL
  // message, usually for about:blank. It's important for the about:blank load
  // to get processed because the Firefox frontend expects every new window to
  // immediately start loading something (see bug 1123090). However, we want
  // the child to process the LoadURL message before it returns from
  // ProvideWindow so that the URL sent from the parent doesn't override the
  // child's URL. This is not possible using our IPC mechanisms. To solve the
  // problem, we skip sending the LoadURL message in the parent and instead
  // return the URL as a result from CreateWindow. The child simulates
  // receiving a LoadURL message before returning from ProvideWindow.
  //
  // The mCreatingWindow flag is set while dispatching CreateWindow. During
  // that time, any LoadURL calls are skipped.
  bool mCreatingWindow;

  // When loading a new tab or window via window.open, we want to ensure that
  // frame scripts for that tab are loaded before any scripts start to run in
  // the window. We can't load the frame scripts the normal way, using
  // separate IPC messages, since they won't be processed by the child until
  // returning to the event loop, which is too late. Instead, we queue up
  // frame scripts that we intend to load and send them as part of the
  // CreateWindow response. Then BrowserChild loads them immediately.
  nsTArray<FrameScriptInfo> mDelayedFrameScripts;

  // Cached cursor setting from BrowserChild.  When the cursor is over the
  // tab, it should take this appearance.
  nsIWidget::Cursor mCursor;

  nsTArray<nsString> mVerifyDropLinks;

  RefPtr<VsyncParent> mVsyncParent;

#ifdef DEBUG
  int32_t mActiveSupressDisplayportCount = 0;
#endif

  // When true, we've initiated normal shutdown and notified our managing
  // PContent.
  bool mMarkedDestroying : 1;
  // When true, the BrowserParent is invalid and we should not send IPC
  // messages anymore.
  bool mIsDestroyed : 1;
  // True if the cursor changes from the BrowserChild should change the widget
  // cursor.  This happens whenever the cursor is in the remote target's
  // region.
  bool mRemoteTargetSetsCursor : 1;

  // If this flag is set, then the tab's layers will be preserved even when
  // the tab's docshell is inactive.
  bool mIsPreservingLayers : 1;

  // Holds the most recent value passed to the RenderLayers function. This
  // does not necessarily mean that the layers have finished rendering
  // and have uploaded - for that, use mHasLayers.
  bool mRenderLayers : 1;

  // True if process should be set to a higher priority.
  bool mPriorityHint : 1;

  // True if the compositor has reported that the BrowserChild has uploaded
  // layers.
  bool mHasLayers : 1;

  // True if this BrowserParent has had its layer tree sent to the compositor
  // at least once.
  bool mHasPresented : 1;

  // True when the remote browser is created and ready to handle input events.
  bool mIsReadyToHandleInputEvents : 1;

  // True if we suppress the eMouseEnterIntoWidget event due to the
  // BrowserChild was not ready to handle it. We will resend it when the next
  // time we fire a mouse event and the BrowserChild is ready.
  bool mIsMouseEnterIntoWidgetEventSuppressed : 1;

  // True after RecvLockNativePointer has been called and until
  // UnlockNativePointer has been called.
  bool mLockedNativePointer : 1;

  // True between ShowTooltip and HideTooltip messages.
  bool mShowingTooltip : 1;
};

struct MOZ_STACK_CLASS BrowserParent::AutoUseNewTab final {
 public:
  explicit AutoUseNewTab(BrowserParent* aNewTab) : mNewTab(aNewTab) {
    MOZ_ASSERT(!aNewTab->mCreatingWindow);
    aNewTab->mCreatingWindow = true;
  }

  ~AutoUseNewTab() { mNewTab->mCreatingWindow = false; }

 private:
  RefPtr<BrowserParent> mNewTab;
};

}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_BrowserParent_h