dom/base/nsDOMWindowUtils.cpp
author Lee Salzman <lsalzman@mozilla.com>
Mon, 05 Dec 2022 04:40:45 +0000
changeset 644658 89666af4ddbca2c4e708ff80a6b869d420d45846
parent 644498 57ecc62058cc468c13c25a616fca43fde36b3e4a
permissions -rw-r--r--
Bug 1801307 - Remember last interval to speed up insertion search. r=jrmuizel This modifies AddInterval in wpf-gpu-raster to try to remember the last interval it searched for so that it doesn't have to search the entire interval list for every interval added. This should take us down from O(n^2) to closer to O(n) for this phase of rasterization. Differential Revision: https://phabricator.services.mozilla.com/D163795

/* -*- 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/. */

#include "nsDOMWindowUtils.h"

#include "LayoutConstants.h"
#include "MobileViewportManager.h"
#include "mozilla/layers/CompositorBridgeChild.h"
#include "nsPresContext.h"
#include "nsCaret.h"
#include "nsContentList.h"
#include "nsError.h"
#include "nsQueryContentEventResult.h"
#include "nsGlobalWindow.h"
#include "nsFocusManager.h"
#include "nsFrameManager.h"
#include "nsRefreshDriver.h"
#include "nsStyleUtil.h"
#include "mozilla/dom/Animation.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/BlobBinding.h"
#include "mozilla/dom/DocumentInlines.h"
#include "mozilla/dom/DOMCollectedFramesBinding.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/Touch.h"
#include "mozilla/dom/UserActivation.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/PendingAnimationTracker.h"
#include "mozilla/ServoStyleSet.h"
#include "mozilla/SharedStyleSheetCache.h"
#include "mozilla/StaticPrefs_test.h"
#include "mozilla/InputTaskManager.h"
#include "nsIObjectLoadingContent.h"
#include "nsIFrame.h"
#include "mozilla/layers/APZCCallbackHelper.h"
#include "mozilla/layers/PCompositorBridgeTypes.h"
#include "mozilla/media/MediaUtils.h"
#include "nsQueryObject.h"
#include "CubebDeviceEnumerator.h"

#include "nsIScrollableFrame.h"

#include "nsContentUtils.h"

#include "nsIWidget.h"
#include "nsCharsetSource.h"
#include "nsJSEnvironment.h"
#include "nsJSUtils.h"
#include "js/experimental/PCCountProfiling.h"  // JS::{Start,Stop}PCCountProfiling, JS::PurgePCCounts, JS::GetPCCountScript{Count,Summary,Contents}
#include "js/Object.h"                         // JS::GetClass

#include "mozilla/ChaosMode.h"
#include "mozilla/CheckedInt.h"
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/PresShell.h"
#include "mozilla/PresShellInlines.h"
#include "mozilla/Span.h"
#include "mozilla/StaticPrefs_layout.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TextEventDispatcher.h"
#include "mozilla/TouchEvents.h"

#include "nsViewManager.h"

#include "nsLayoutUtils.h"
#include "nsComputedDOMStyle.h"
#include "nsCSSProps.h"
#include "nsIDocShell.h"
#include "mozilla/StyleAnimationValue.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/FileBinding.h"
#include "mozilla/dom/DOMRect.h"
#include <algorithm>

#if defined(MOZ_WIDGET_GTK)
#  include <gdk/gdk.h>
#  if defined(MOZ_X11)
#    include <gdk/gdkx.h>
#    include "X11UndefineNone.h"
#  endif
#endif

#include "mozilla/dom/AudioDeviceInfo.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/BrowserChild.h"
#include "mozilla/dom/IDBFactoryBinding.h"
#include "mozilla/dom/IDBMutableFileBinding.h"
#include "mozilla/dom/IDBMutableFile.h"
#include "mozilla/dom/IndexedDatabaseManager.h"
#include "mozilla/dom/PermissionMessageUtils.h"
#include "mozilla/dom/Text.h"
#include "mozilla/dom/quota/PersistenceType.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/layers/FrameUniformityData.h"
#include "nsPrintfCString.h"
#include "nsViewportInfo.h"
#include "nsIFormControl.h"
// #include "nsWidgetsCID.h"
#include "nsDisplayList.h"
#include "nsROCSSPrimitiveValue.h"
#include "nsIBaseWindow.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIInterfaceRequestorUtils.h"
#include "mozilla/Preferences.h"
#include "nsContentPermissionHelper.h"
#include "nsCSSPseudoElements.h"  // for PseudoStyleType
#include "nsNetUtil.h"
#include "HTMLImageElement.h"
#include "HTMLCanvasElement.h"
#include "mozilla/css/ImageLoader.h"
#include "mozilla/layers/IAPZCTreeManager.h"  // for layers::ZoomToRectBehavior
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/ServoBindings.h"
#include "mozilla/StyleSheetInlines.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/dom/TimeoutManager.h"
#include "mozilla/PreloadedStyleSheet.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/ProfilerMarkers.h"
#include "mozilla/layers/WebRenderBridgeChild.h"
#include "mozilla/layers/WebRenderLayerManager.h"
#include "mozilla/DisplayPortUtils.h"
#include "mozilla/ResultExtensions.h"
#include "mozilla/ViewportUtils.h"
#include "mozilla/dom/BrowsingContextGroup.h"
#include "mozilla/IMEStateManager.h"
#include "mozilla/IMEContentObserver.h"

#ifdef XP_WIN
#  undef GetClassName
#endif

using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::ipc;
using namespace mozilla::layers;
using namespace mozilla::widget;
using namespace mozilla::gfx;

class gfxContext;

class OldWindowSize : public LinkedListElement<OldWindowSize> {
 public:
  static void Set(nsIWeakReference* aWindowRef, const nsSize& aSize) {
    OldWindowSize* item = GetItem(aWindowRef);
    if (item) {
      item->mSize = aSize;
    } else {
      item = new OldWindowSize(aWindowRef, aSize);
      sList.insertBack(item);
    }
  }

  static nsSize GetAndRemove(nsIWeakReference* aWindowRef) {
    nsSize result;
    if (OldWindowSize* item = GetItem(aWindowRef)) {
      result = item->mSize;
      delete item;
    }
    return result;
  }

 private:
  explicit OldWindowSize(nsIWeakReference* aWindowRef, const nsSize& aSize)
      : mWindowRef(aWindowRef), mSize(aSize) {}
  ~OldWindowSize() = default;
  ;

  static OldWindowSize* GetItem(nsIWeakReference* aWindowRef) {
    OldWindowSize* item = sList.getFirst();
    while (item && item->mWindowRef != aWindowRef) {
      item = item->getNext();
    }
    return item;
  }

  static LinkedList<OldWindowSize> sList;
  nsWeakPtr mWindowRef;
  nsSize mSize;
};

namespace {

class NativeInputRunnable final : public PrioritizableRunnable {
  explicit NativeInputRunnable(already_AddRefed<nsIRunnable>&& aEvent);
  ~NativeInputRunnable() = default;

 public:
  static already_AddRefed<nsIRunnable> Create(
      already_AddRefed<nsIRunnable>&& aEvent);
};

NativeInputRunnable::NativeInputRunnable(already_AddRefed<nsIRunnable>&& aEvent)
    : PrioritizableRunnable(std::move(aEvent),
                            nsIRunnablePriority::PRIORITY_INPUT_HIGH) {}

/* static */
already_AddRefed<nsIRunnable> NativeInputRunnable::Create(
    already_AddRefed<nsIRunnable>&& aEvent) {
  MOZ_ASSERT(NS_IsMainThread());
  nsCOMPtr<nsIRunnable> event(new NativeInputRunnable(std::move(aEvent)));
  return event.forget();
}

}  // unnamed namespace

LinkedList<OldWindowSize> OldWindowSize::sList;

NS_INTERFACE_MAP_BEGIN(nsDOMWindowUtils)
  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMWindowUtils)
  NS_INTERFACE_MAP_ENTRY(nsIDOMWindowUtils)
  NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_END

NS_IMPL_ADDREF(nsDOMWindowUtils)
NS_IMPL_RELEASE(nsDOMWindowUtils)

nsDOMWindowUtils::nsDOMWindowUtils(nsGlobalWindowOuter* aWindow) {
  nsCOMPtr<nsISupports> supports = do_QueryObject(aWindow);
  mWindow = do_GetWeakReference(supports);
}

nsDOMWindowUtils::~nsDOMWindowUtils() { OldWindowSize::GetAndRemove(mWindow); }

nsIDocShell* nsDOMWindowUtils::GetDocShell() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (!window) {
    return nullptr;
  }
  return window->GetDocShell();
}

PresShell* nsDOMWindowUtils::GetPresShell() {
  nsIDocShell* docShell = GetDocShell();
  if (!docShell) {
    return nullptr;
  }
  return docShell->GetPresShell();
}

nsPresContext* nsDOMWindowUtils::GetPresContext() {
  nsIDocShell* docShell = GetDocShell();
  if (!docShell) {
    return nullptr;
  }
  return docShell->GetPresContext();
}

Document* nsDOMWindowUtils::GetDocument() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (!window) {
    return nullptr;
  }
  return window->GetExtantDoc();
}

WebRenderBridgeChild* nsDOMWindowUtils::GetWebRenderBridge() {
  if (nsIWidget* widget = GetWidget()) {
    if (WindowRenderer* renderer = widget->GetWindowRenderer()) {
      if (WebRenderLayerManager* wr = renderer->AsWebRender()) {
        return wr->WrBridge();
      }
    }
  }
  return nullptr;
}

CompositorBridgeChild* nsDOMWindowUtils::GetCompositorBridge() {
  if (nsIWidget* widget = GetWidget()) {
    if (WindowRenderer* renderer = widget->GetWindowRenderer()) {
      if (CompositorBridgeChild* cbc = renderer->GetCompositorBridgeChild()) {
        return cbc;
      }
    }
  }
  return nullptr;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetLastOverWindowPointerLocationInCSSPixels(float* aX,
                                                              float* aY) {
  const PresShell* presShell = GetPresShell();
  const nsPresContext* presContext = GetPresContext();

  if (!presShell || !presContext) {
    return NS_ERROR_FAILURE;
  }

  const nsPoint& lastOverWindowPointerLocation =
      presShell->GetLastOverWindowPointerLocation();

  if (lastOverWindowPointerLocation.X() == NS_UNCONSTRAINEDSIZE &&
      lastOverWindowPointerLocation.Y() == NS_UNCONSTRAINEDSIZE) {
    *aX = 0;
    *aY = 0;
  } else {
    const CSSPoint lastOverWindowPointerLocationInCSSPixels =
        CSSPoint::FromAppUnits(lastOverWindowPointerLocation);
    *aX = lastOverWindowPointerLocationInCSSPixels.X();
    *aY = lastOverWindowPointerLocationInCSSPixels.Y();
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SyncFlushCompositor() {
  if (nsIWidget* widget = GetWidget()) {
    if (WindowRenderer* renderer = widget->GetWindowRenderer()) {
      if (KnowsCompositor* kc = renderer->AsKnowsCompositor()) {
        kc->SyncWithCompositor();
      }
    }
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetImageAnimationMode(uint16_t* aMode) {
  NS_ENSURE_ARG_POINTER(aMode);
  *aMode = 0;
  nsPresContext* presContext = GetPresContext();
  if (presContext) {
    *aMode = presContext->ImageAnimationMode();
    return NS_OK;
  }
  return NS_ERROR_NOT_AVAILABLE;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetImageAnimationMode(uint16_t aMode) {
  nsPresContext* presContext = GetPresContext();
  if (presContext) {
    presContext->SetImageAnimationMode(aMode);
    return NS_OK;
  }
  return NS_ERROR_NOT_AVAILABLE;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetDocCharsetIsForced(bool* aIsForced) {
  *aIsForced = false;

  Document* doc = GetDocument();
  if (doc) {
    auto source = doc->GetDocumentCharacterSetSource();
    *aIsForced = source == kCharsetFromInitialUserForcedAutoDetection ||
                 source == kCharsetFromFinalUserForcedAutoDetection;
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPhysicalMillimeterInCSSPixels(float* aPhysicalMillimeter) {
  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  *aPhysicalMillimeter = nsPresContext::AppUnitsToFloatCSSPixels(
      presContext->PhysicalMillimetersToAppUnits(1));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetDocumentMetadata(const nsAString& aName,
                                      nsAString& aValue) {
  Document* doc = GetDocument();
  if (doc) {
    RefPtr<nsAtom> name = NS_Atomize(aName);
    doc->GetHeaderData(name, aValue);
    return NS_OK;
  }

  aValue.Truncate();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::UpdateLayerTree() {
  if (RefPtr<PresShell> presShell = GetPresShell()) {
    // Don't flush throttled animations since it might fire MozAfterPaint event
    // (in WebRender it constantly does), thus the reftest harness can't take
    // any snapshot until the throttled animations finished.
    presShell->FlushPendingNotifications(
        ChangesToFlush(FlushType::Display, false /* flush animations */));
    RefPtr<nsViewManager> vm = presShell->GetViewManager();
    if (nsView* view = vm->GetRootView()) {
      nsAutoScriptBlocker scriptBlocker;
      presShell->PaintAndRequestComposite(view,
                                          PaintFlags::PaintSyncDecodeImages);
      presShell->GetWindowRenderer()->WaitOnTransactionProcessed();
    }
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetContentViewerSize(uint32_t* aDisplayWidth,
                                       uint32_t* aDisplayHeight) {
  PresShell* presShell = GetPresShell();
  LayoutDeviceIntSize displaySize;

  if (!presShell || !nsLayoutUtils::GetContentViewerSize(
                        presShell->GetPresContext(), displaySize)) {
    return NS_ERROR_FAILURE;
  }

  *aDisplayWidth = displaySize.width;
  *aDisplayHeight = displaySize.height;

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetViewportInfo(uint32_t aDisplayWidth,
                                  uint32_t aDisplayHeight, double* aDefaultZoom,
                                  bool* aAllowZoom, double* aMinZoom,
                                  double* aMaxZoom, uint32_t* aWidth,
                                  uint32_t* aHeight, bool* aAutoSize) {
  Document* doc = GetDocument();
  NS_ENSURE_STATE(doc);

  nsViewportInfo info =
      doc->GetViewportInfo(ScreenIntSize(aDisplayWidth, aDisplayHeight));
  *aDefaultZoom = info.GetDefaultZoom().scale;
  *aAllowZoom = info.IsZoomAllowed();
  *aMinZoom = info.GetMinZoom().scale;
  *aMaxZoom = info.GetMaxZoom().scale;
  CSSIntSize size = gfx::RoundedToInt(info.GetSize());
  *aWidth = size.width;
  *aHeight = size.height;
  *aAutoSize = info.IsAutoSizeEnabled();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetViewportFitInfo(nsAString& aViewportFit) {
  Document* doc = GetDocument();
  NS_ENSURE_STATE(doc);

  ViewportMetaData metaData = doc->GetViewportMetaData();
  if (metaData.mViewportFit.EqualsLiteral("contain")) {
    aViewportFit.AssignLiteral("contain");
  } else if (metaData.mViewportFit.EqualsLiteral("cover")) {
    aViewportFit.AssignLiteral("cover");
  } else {
    aViewportFit.AssignLiteral("auto");
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetMousewheelAutodir(Element* aElement, bool aEnabled,
                                       bool aHonourRoot) {
  aElement->SetProperty(nsGkAtoms::forceMousewheelAutodir,
                        reinterpret_cast<void*>(aEnabled));
  aElement->SetProperty(nsGkAtoms::forceMousewheelAutodirHonourRoot,
                        reinterpret_cast<void*>(aHonourRoot));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetDisplayPortForElement(float aXPx, float aYPx,
                                           float aWidthPx, float aHeightPx,
                                           Element* aElement,
                                           uint32_t aPriority) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  if (aElement->GetUncomposedDoc() != presShell->GetDocument()) {
    return NS_ERROR_INVALID_ARG;
  }

  bool hadDisplayPort = false;
  bool wasPainted = false;
  nsRect oldDisplayPort;
  {
    DisplayPortPropertyData* currentData =
        static_cast<DisplayPortPropertyData*>(
            aElement->GetProperty(nsGkAtoms::DisplayPort));
    if (currentData) {
      if (currentData->mPriority > aPriority) {
        return NS_OK;
      }
      hadDisplayPort = true;
      oldDisplayPort = currentData->mRect;
      wasPainted = currentData->mPainted;
    }
  }

  nsRect displayport(nsPresContext::CSSPixelsToAppUnits(aXPx),
                     nsPresContext::CSSPixelsToAppUnits(aYPx),
                     nsPresContext::CSSPixelsToAppUnits(aWidthPx),
                     nsPresContext::CSSPixelsToAppUnits(aHeightPx));

  aElement->RemoveProperty(nsGkAtoms::MinimalDisplayPort);
  aElement->SetProperty(
      nsGkAtoms::DisplayPort,
      new DisplayPortPropertyData(displayport, aPriority, wasPainted),
      nsINode::DeleteProperty<DisplayPortPropertyData>);

  DisplayPortUtils::InvalidateForDisplayPortChange(aElement, hadDisplayPort,
                                                   oldDisplayPort, displayport);

  nsIFrame* rootFrame = presShell->GetRootFrame();
  if (rootFrame) {
    rootFrame->SchedulePaint();

    // If we are hiding something that is a display root then send empty paint
    // transaction in order to release retained layers because it won't get
    // any more paint requests when it is hidden.
    if (displayport.IsEmpty() &&
        rootFrame == nsLayoutUtils::GetDisplayRootFrame(rootFrame)) {
      nsCOMPtr<nsIWidget> widget = GetWidget();
      if (widget) {
        using PaintFrameFlags = nsLayoutUtils::PaintFrameFlags;
        nsLayoutUtils::PaintFrame(
            nullptr, rootFrame, nsRegion(), NS_RGB(255, 255, 255),
            nsDisplayListBuilderMode::Painting, PaintFrameFlags::WidgetLayers);
      }
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetDisplayPortMarginsForElement(
    float aLeftMargin, float aTopMargin, float aRightMargin,
    float aBottomMargin, Element* aElement, uint32_t aPriority) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  if (aElement->GetUncomposedDoc() != presShell->GetDocument()) {
    return NS_ERROR_INVALID_ARG;
  }

  // Note order change of arguments between our function signature and
  // ScreenMargin constructor.
  ScreenMargin displayportMargins(aTopMargin, aRightMargin, aBottomMargin,
                                  aLeftMargin);

  DisplayPortUtils::SetDisplayPortMargins(
      aElement, presShell,
      DisplayPortMargins::ForContent(aElement, displayportMargins),
      DisplayPortUtils::ClearMinimalDisplayPortProperty::Yes, aPriority);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetDisplayPortBaseForElement(int32_t aX, int32_t aY,
                                               int32_t aWidth, int32_t aHeight,
                                               Element* aElement) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  if (aElement->GetUncomposedDoc() != presShell->GetDocument()) {
    return NS_ERROR_INVALID_ARG;
  }

  DisplayPortUtils::SetDisplayPortBase(aElement,
                                       nsRect(aX, aY, aWidth, aHeight));

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetScrollbarSizes(Element* aElement,
                                    uint32_t* aOutVerticalScrollbarWidth,
                                    uint32_t* aOutHorizontalScrollbarHeight) {
  nsIScrollableFrame* scrollFrame =
      nsLayoutUtils::FindScrollableFrameFor(aElement);
  if (!scrollFrame) {
    return NS_ERROR_INVALID_ARG;
  }

  CSSIntMargin scrollbarSizes =
      RoundedToInt(CSSMargin::FromAppUnits(scrollFrame->GetActualScrollbarSizes(
          nsIScrollableFrame::ScrollbarSizesOptions::
              INCLUDE_VISUAL_VIEWPORT_SCROLLBARS)));
  *aOutVerticalScrollbarWidth = scrollbarSizes.LeftRight();
  *aOutHorizontalScrollbarHeight = scrollbarSizes.TopBottom();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetResolutionAndScaleTo(float aResolution) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  presShell->SetResolutionAndScaleTo(aResolution, ResolutionChangeOrigin::Test);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetRestoreResolution(float aResolution,
                                       uint32_t aDisplayWidth,
                                       uint32_t aDisplayHeight) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  presShell->SetRestoreResolution(
      aResolution, LayoutDeviceIntSize(aDisplayWidth, aDisplayHeight));

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetResolution(float* aResolution) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  *aResolution = presShell->GetResolution();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetIsFirstPaint(bool aIsFirstPaint) {
  if (PresShell* presShell = GetPresShell()) {
    presShell->SetIsFirstPaint(aIsFirstPaint);
    return NS_OK;
  }
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsFirstPaint(bool* aIsFirstPaint) {
  if (PresShell* presShell = GetPresShell()) {
    *aIsFirstPaint = presShell->GetIsFirstPaint();
    return NS_OK;
  }
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPresShellId(uint32_t* aPresShellId) {
  if (PresShell* presShell = GetPresShell()) {
    *aPresShellId = presShell->GetPresShellId();
    return NS_OK;
  }
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEvent(
    const nsAString& aType, float aX, float aY, int32_t aButton,
    int32_t aClickCount, int32_t aModifiers, bool aIgnoreRootScrollFrame,
    float aPressure, unsigned short aInputSourceArg,
    bool aIsDOMEventSynthesized, bool aIsWidgetEventSynthesized,
    int32_t aButtons, uint32_t aIdentifier, uint8_t aOptionalArgCount,
    bool* aPreventDefault) {
  return SendMouseEventCommon(
      aType, aX, aY, aButton, aClickCount, aModifiers, aIgnoreRootScrollFrame,
      aPressure, aInputSourceArg,
      aOptionalArgCount >= 7 ? aIdentifier : DEFAULT_MOUSE_POINTER_ID, false,
      aPreventDefault, aOptionalArgCount >= 4 ? aIsDOMEventSynthesized : true,
      aOptionalArgCount >= 5 ? aIsWidgetEventSynthesized : false,
      aOptionalArgCount >= 6 ? aButtons : MOUSE_BUTTONS_NOT_SPECIFIED);
}

NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEventToWindow(
    const nsAString& aType, float aX, float aY, int32_t aButton,
    int32_t aClickCount, int32_t aModifiers, bool aIgnoreRootScrollFrame,
    float aPressure, unsigned short aInputSourceArg,
    bool aIsDOMEventSynthesized, bool aIsWidgetEventSynthesized,
    int32_t aButtons, uint32_t aIdentifier, uint8_t aOptionalArgCount) {
  AUTO_PROFILER_LABEL("nsDOMWindowUtils::SendMouseEventToWindow", OTHER);

  return SendMouseEventCommon(
      aType, aX, aY, aButton, aClickCount, aModifiers, aIgnoreRootScrollFrame,
      aPressure, aInputSourceArg,
      aOptionalArgCount >= 7 ? aIdentifier : DEFAULT_MOUSE_POINTER_ID, true,
      nullptr, aOptionalArgCount >= 4 ? aIsDOMEventSynthesized : true,
      aOptionalArgCount >= 5 ? aIsWidgetEventSynthesized : false,
      aOptionalArgCount >= 6 ? aButtons : MOUSE_BUTTONS_NOT_SPECIFIED);
}

NS_IMETHODIMP
nsDOMWindowUtils::SendMouseEventCommon(
    const nsAString& aType, float aX, float aY, int32_t aButton,
    int32_t aClickCount, int32_t aModifiers, bool aIgnoreRootScrollFrame,
    float aPressure, unsigned short aInputSourceArg, uint32_t aPointerId,
    bool aToWindow, bool* aPreventDefault, bool aIsDOMEventSynthesized,
    bool aIsWidgetEventSynthesized, int32_t aButtons) {
  RefPtr<PresShell> presShell = GetPresShell();
  PreventDefaultResult preventDefaultResult;
  nsresult rv = nsContentUtils::SendMouseEvent(
      presShell, aType, aX, aY, aButton, aButtons, aClickCount, aModifiers,
      aIgnoreRootScrollFrame, aPressure, aInputSourceArg, aPointerId, aToWindow,
      &preventDefaultResult, aIsDOMEventSynthesized, aIsWidgetEventSynthesized);

  if (aPreventDefault) {
    *aPreventDefault = preventDefaultResult != PreventDefaultResult::No;
  }

  return rv;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsCORSSafelistedRequestHeader(const nsACString& aName,
                                                const nsACString& aValue,
                                                bool* aRetVal) {
  NS_ENSURE_ARG_POINTER(aRetVal);
  *aRetVal = nsContentUtils::IsCORSSafelistedRequestHeader(aName, aValue);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendWheelEvent(float aX, float aY, double aDeltaX,
                                 double aDeltaY, double aDeltaZ,
                                 uint32_t aDeltaMode, int32_t aModifiers,
                                 int32_t aLineOrPageDeltaX,
                                 int32_t aLineOrPageDeltaY, uint32_t aOptions) {
  // get the widget to send the event to
  nsPoint offset;
  nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
  if (!widget) {
    return NS_ERROR_NULL_POINTER;
  }

  WidgetWheelEvent wheelEvent(true, eWheel, widget);
  wheelEvent.mModifiers = nsContentUtils::GetWidgetModifiers(aModifiers);
  wheelEvent.mDeltaX = aDeltaX;
  wheelEvent.mDeltaY = aDeltaY;
  wheelEvent.mDeltaZ = aDeltaZ;
  wheelEvent.mDeltaMode = aDeltaMode;
  wheelEvent.mIsMomentum = (aOptions & WHEEL_EVENT_CAUSED_BY_MOMENTUM) != 0;
  wheelEvent.mIsNoLineOrPageDelta =
      (aOptions & WHEEL_EVENT_CAUSED_BY_NO_LINE_OR_PAGE_DELTA_DEVICE) != 0;
  wheelEvent.mCustomizedByUserPrefs =
      (aOptions & WHEEL_EVENT_CUSTOMIZED_BY_USER_PREFS) != 0;
  wheelEvent.mLineOrPageDeltaX = aLineOrPageDeltaX;
  wheelEvent.mLineOrPageDeltaY = aLineOrPageDeltaY;

  wheelEvent.mTime = PR_Now() / 1000;

  nsPresContext* presContext = GetPresContext();
  NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);

  wheelEvent.mRefPoint =
      nsContentUtils::ToWidgetPoint(CSSPoint(aX, aY), offset, presContext);

  if (StaticPrefs::test_events_async_enabled()) {
    widget->DispatchInputEvent(&wheelEvent);
  } else {
    nsEventStatus status = nsEventStatus_eIgnore;
    nsresult rv = widget->DispatchEvent(&wheelEvent, status);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  if (widget->AsyncPanZoomEnabled()) {
    // Computing overflow deltas is not compatible with APZ, so if APZ is
    // enabled, we skip testing it.
    return NS_OK;
  }

  bool failedX = false;
  if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_X_ZERO) &&
      wheelEvent.mOverflowDeltaX != 0) {
    failedX = true;
  }
  if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_X_POSITIVE) &&
      wheelEvent.mOverflowDeltaX <= 0) {
    failedX = true;
  }
  if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_X_NEGATIVE) &&
      wheelEvent.mOverflowDeltaX >= 0) {
    failedX = true;
  }
  bool failedY = false;
  if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_Y_ZERO) &&
      wheelEvent.mOverflowDeltaY != 0) {
    failedY = true;
  }
  if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_Y_POSITIVE) &&
      wheelEvent.mOverflowDeltaY <= 0) {
    failedY = true;
  }
  if ((aOptions & WHEEL_EVENT_EXPECTED_OVERFLOW_DELTA_Y_NEGATIVE) &&
      wheelEvent.mOverflowDeltaY >= 0) {
    failedY = true;
  }

#ifdef DEBUG
  if (failedX) {
    nsPrintfCString debugMsg("SendWheelEvent(): unexpected mOverflowDeltaX: %f",
                             wheelEvent.mOverflowDeltaX);
    NS_WARNING(debugMsg.get());
  }
  if (failedY) {
    nsPrintfCString debugMsg("SendWheelEvent(): unexpected mOverflowDeltaY: %f",
                             wheelEvent.mOverflowDeltaY);
    NS_WARNING(debugMsg.get());
  }
#endif

  return (!failedX && !failedY) ? NS_OK : NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendTouchEvent(
    const nsAString& aType, const nsTArray<uint32_t>& aIdentifiers,
    const nsTArray<int32_t>& aXs, const nsTArray<int32_t>& aYs,
    const nsTArray<uint32_t>& aRxs, const nsTArray<uint32_t>& aRys,
    const nsTArray<float>& aRotationAngles, const nsTArray<float>& aForces,
    const nsTArray<int32_t>& aTiltXs, const nsTArray<int32_t>& aTiltYs,
    const nsTArray<int32_t>& aTwists, int32_t aModifiers,
    bool aIgnoreRootScrollFrame, bool* aPreventDefault) {
  return SendTouchEventCommon(aType, aIdentifiers, aXs, aYs, aRxs, aRys,
                              aRotationAngles, aForces, aTiltXs, aTiltYs,
                              aTwists, aModifiers, aIgnoreRootScrollFrame,
                              false, aPreventDefault);
}

NS_IMETHODIMP
nsDOMWindowUtils::SendTouchEventToWindow(
    const nsAString& aType, const nsTArray<uint32_t>& aIdentifiers,
    const nsTArray<int32_t>& aXs, const nsTArray<int32_t>& aYs,
    const nsTArray<uint32_t>& aRxs, const nsTArray<uint32_t>& aRys,
    const nsTArray<float>& aRotationAngles, const nsTArray<float>& aForces,
    const nsTArray<int32_t>& aTiltXs, const nsTArray<int32_t>& aTiltYs,
    const nsTArray<int32_t>& aTwists, int32_t aModifiers,
    bool aIgnoreRootScrollFrame, bool* aPreventDefault) {
  return SendTouchEventCommon(aType, aIdentifiers, aXs, aYs, aRxs, aRys,
                              aRotationAngles, aForces, aTiltXs, aTiltYs,
                              aTwists, aModifiers, aIgnoreRootScrollFrame, true,
                              aPreventDefault);
}

nsresult nsDOMWindowUtils::SendTouchEventCommon(
    const nsAString& aType, const nsTArray<uint32_t>& aIdentifiers,
    const nsTArray<int32_t>& aXs, const nsTArray<int32_t>& aYs,
    const nsTArray<uint32_t>& aRxs, const nsTArray<uint32_t>& aRys,
    const nsTArray<float>& aRotationAngles, const nsTArray<float>& aForces,
    const nsTArray<int32_t>& aTiltXs, const nsTArray<int32_t>& aTiltYs,
    const nsTArray<int32_t>& aTwists, int32_t aModifiers,
    bool aIgnoreRootScrollFrame, bool aToWindow, bool* aPreventDefault) {
  // get the widget to send the event to
  nsPoint offset;
  nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
  if (!widget) {
    return NS_ERROR_NULL_POINTER;
  }
  EventMessage msg;
  if (aType.EqualsLiteral("touchstart")) {
    msg = eTouchStart;
  } else if (aType.EqualsLiteral("touchmove")) {
    msg = eTouchMove;
  } else if (aType.EqualsLiteral("touchend")) {
    msg = eTouchEnd;
  } else if (aType.EqualsLiteral("touchcancel")) {
    msg = eTouchCancel;
  } else {
    return NS_ERROR_UNEXPECTED;
  }
  WidgetTouchEvent event(true, msg, widget);
  event.mModifiers = nsContentUtils::GetWidgetModifiers(aModifiers);
  event.mTime = PR_Now();

  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_ERROR_FAILURE;
  }
  uint32_t count = aIdentifiers.Length();
  if (aXs.Length() != count || aYs.Length() != count ||
      aRxs.Length() != count || aRys.Length() != count ||
      aRotationAngles.Length() != count || aForces.Length() != count) {
    return NS_ERROR_INVALID_ARG;
  }
  event.mTouches.SetCapacity(count);
  for (uint32_t i = 0; i < count; ++i) {
    LayoutDeviceIntPoint pt = nsContentUtils::ToWidgetPoint(
        CSSPoint(aXs[i], aYs[i]), offset, presContext);
    LayoutDeviceIntPoint radius = LayoutDeviceIntPoint::FromAppUnitsRounded(
        CSSPoint::ToAppUnits(CSSPoint(aRxs[i], aRys[i])),
        presContext->AppUnitsPerDevPixel());

    RefPtr<Touch> t = new Touch(aIdentifiers[i], pt, radius, aRotationAngles[i],
                                aForces[i], aTiltXs[i], aTiltYs[i], aTwists[i]);

    event.mTouches.AppendElement(t);
  }

  nsEventStatus status = nsEventStatus_eIgnore;
  if (aToWindow) {
    RefPtr<PresShell> presShell;
    nsView* view = nsContentUtils::GetViewToDispatchEvent(
        presContext, getter_AddRefs(presShell));
    if (!presShell || !view) {
      return NS_ERROR_FAILURE;
    }
    *aPreventDefault = (status == nsEventStatus_eConsumeNoDefault);
    return presShell->HandleEvent(view->GetFrame(), &event, false, &status);
  }

  if (StaticPrefs::test_events_async_enabled()) {
    status = widget->DispatchInputEvent(&event).mContentStatus;
  } else {
    nsresult rv = widget->DispatchEvent(&event, status);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  if (aPreventDefault) {
    *aPreventDefault = (status == nsEventStatus_eConsumeNoDefault);
  }
  return NS_OK;
}

static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::CAPS_LOCK) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_CAPS_LOCK),
    "Need to sync CapsLock value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::NUM_LOCK) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_NUM_LOCK),
    "Need to sync NumLock value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::SHIFT_L) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_SHIFT_LEFT),
    "Need to sync ShiftLeft value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::SHIFT_R) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_SHIFT_RIGHT),
    "Need to sync ShiftRight value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::CTRL_L) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_CONTROL_LEFT),
    "Need to sync ControlLeft value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::CTRL_R) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_CONTROL_RIGHT),
    "Need to sync ControlRight value between nsIWidget::Modifiers "
    "and nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::ALT_L) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_ALT_LEFT),
    "Need to sync AltLeft value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::ALT_R) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_ALT_RIGHT),
    "Need to sync AltRight value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::COMMAND_L) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_COMMAND_LEFT),
    "Need to sync CommandLeft value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::COMMAND_R) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_COMMAND_RIGHT),
    "Need to sync CommandRight value between nsIWidget::Modifiers "
    "and nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::HELP) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_HELP),
    "Need to sync Help value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::ALTGRAPH) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_ALT_GRAPH),
    "Need to sync AltGraph value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(
    static_cast<uint32_t>(nsIWidget::Modifiers::FUNCTION) ==
        static_cast<uint32_t>(nsIDOMWindowUtils::NATIVE_MODIFIER_FUNCTION),
    "Need to sync Function value between nsIWidget::Modifiers and "
    "nsIDOMWindowUtils");
static_assert(static_cast<uint32_t>(nsIWidget::Modifiers::NUMERIC_KEY_PAD) ==
                  static_cast<uint32_t>(
                      nsIDOMWindowUtils::NATIVE_MODIFIER_NUMERIC_KEY_PAD),
              "Need to sync NumericKeyPad value between nsIWidget::Modifiers "
              "and nsIDOMWindowUtils");

static nsIWidget::Modifiers GetWidgetModifiers(uint32_t aNativeModifiers) {
  nsIWidget::Modifiers widgetModifiers = static_cast<nsIWidget::Modifiers>(
      aNativeModifiers &
      (nsIWidget::Modifiers::CAPS_LOCK | nsIWidget::Modifiers::NUM_LOCK |
       nsIWidget::Modifiers::SHIFT_L | nsIWidget::Modifiers::SHIFT_R |
       nsIWidget::Modifiers::CTRL_L | nsIWidget::Modifiers::CTRL_R |
       nsIWidget::Modifiers::ALT_L | nsIWidget::Modifiers::ALT_R |
       nsIWidget::Modifiers::COMMAND_L | nsIWidget::Modifiers::COMMAND_R |
       nsIWidget::Modifiers::HELP | nsIWidget::Modifiers::ALTGRAPH |
       nsIWidget::Modifiers::FUNCTION | nsIWidget::Modifiers::NUMERIC_KEY_PAD));
  NS_ASSERTION(static_cast<uint32_t>(widgetModifiers) == aNativeModifiers,
               "Invalid value is specified to the native modifiers");
  return widgetModifiers;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeKeyEvent(int32_t aNativeKeyboardLayout,
                                     int32_t aNativeKeyCode,
                                     uint32_t aModifiers,
                                     const nsAString& aCharacters,
                                     const nsAString& aUnmodifiedCharacters,
                                     nsIObserver* aObserver) {
  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<int32_t, int32_t, uint32_t, nsString, nsString,
                        nsIObserver*>(
          "nsIWidget::SynthesizeNativeKeyEvent", widget,
          &nsIWidget::SynthesizeNativeKeyEvent, aNativeKeyboardLayout,
          aNativeKeyCode, static_cast<uint32_t>(GetWidgetModifiers(aModifiers)),
          aCharacters, aUnmodifiedCharacters, aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeMouseEvent(int32_t aScreenX, int32_t aScreenY,
                                       uint32_t aNativeMessage, int16_t aButton,
                                       uint32_t aModifierFlags,
                                       Element* aElementOnWidget,
                                       nsIObserver* aObserver) {
  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidgetForElement(aElementOnWidget);
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  nsIWidget::NativeMouseMessage message;
  switch (aNativeMessage) {
    case NATIVE_MOUSE_MESSAGE_BUTTON_DOWN:
      message = nsIWidget::NativeMouseMessage::ButtonDown;
      break;
    case NATIVE_MOUSE_MESSAGE_BUTTON_UP:
      message = nsIWidget::NativeMouseMessage::ButtonUp;
      break;
    case NATIVE_MOUSE_MESSAGE_MOVE:
      message = nsIWidget::NativeMouseMessage::Move;
      break;
    case NATIVE_MOUSE_MESSAGE_ENTER_WINDOW:
      message = nsIWidget::NativeMouseMessage::EnterWindow;
      break;
    case NATIVE_MOUSE_MESSAGE_LEAVE_WINDOW:
      message = nsIWidget::NativeMouseMessage::LeaveWindow;
      break;
    default:
      return NS_ERROR_INVALID_ARG;
  }

  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<LayoutDeviceIntPoint, nsIWidget::NativeMouseMessage,
                        MouseButton, nsIWidget::Modifiers, nsIObserver*>(
          "nsIWidget::SynthesizeNativeMouseEvent", widget,
          &nsIWidget::SynthesizeNativeMouseEvent,
          LayoutDeviceIntPoint(aScreenX, aScreenY), message,
          static_cast<MouseButton>(aButton), GetWidgetModifiers(aModifierFlags),
          aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeMouseScrollEvent(
    int32_t aScreenX, int32_t aScreenY, uint32_t aNativeMessage, double aDeltaX,
    double aDeltaY, double aDeltaZ, uint32_t aModifierFlags,
    uint32_t aAdditionalFlags, Element* aElement, nsIObserver* aObserver) {
  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidgetForElement(aElement);
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<mozilla::LayoutDeviceIntPoint, uint32_t, double, double,
                        double, uint32_t, uint32_t, nsIObserver*>(
          "nsIWidget::SynthesizeNativeMouseScrollEvent", widget,
          &nsIWidget::SynthesizeNativeMouseScrollEvent,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aNativeMessage, aDeltaX,
          aDeltaY, aDeltaZ, aModifierFlags, aAdditionalFlags, aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeTouchPoint(uint32_t aPointerId,
                                       uint32_t aTouchState, int32_t aScreenX,
                                       int32_t aScreenY, double aPressure,
                                       uint32_t aOrientation,
                                       nsIObserver* aObserver) {
  // FYI: This was designed for automated tests, but currently, this is used by
  //      DevTools to emulate touch events from mouse events in the responsive
  //      design mode.

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  if (aPressure < 0 || aPressure > 1 || aOrientation > 359) {
    return NS_ERROR_INVALID_ARG;
  }

  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<uint32_t, nsIWidget::TouchPointerState,
                        LayoutDeviceIntPoint, double, uint32_t, nsIObserver*>(
          "nsIWidget::SynthesizeNativeTouchPoint", widget,
          &nsIWidget::SynthesizeNativeTouchPoint, aPointerId,
          (nsIWidget::TouchPointerState)aTouchState,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aPressure, aOrientation,
          aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeTouchpadPinch(uint32_t aEventPhase, float aScale,
                                          int32_t aScreenX, int32_t aScreenY,
                                          int32_t aModifierFlags) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }
  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<nsIWidget::TouchpadGesturePhase, float,
                        LayoutDeviceIntPoint, int32_t>(
          "nsIWidget::SynthesizeNativeTouchPadPinch", widget,
          &nsIWidget::SynthesizeNativeTouchPadPinch,
          (nsIWidget::TouchpadGesturePhase)aEventPhase, aScale,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aModifierFlags)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeTouchTap(int32_t aScreenX, int32_t aScreenY,
                                     bool aLongTap, nsIObserver* aObserver) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<LayoutDeviceIntPoint, bool, nsIObserver*>(
          "nsIWidget::SynthesizeNativeTouchTap", widget,
          &nsIWidget::SynthesizeNativeTouchTap,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aLongTap, aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativePenInput(uint32_t aPointerId,
                                     uint32_t aPointerState, int32_t aScreenX,
                                     int32_t aScreenY, double aPressure,
                                     uint32_t aRotation, int32_t aTiltX,
                                     int32_t aTiltY, int32_t aButton,
                                     nsIObserver* aObserver) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  if (aPressure < 0 || aPressure > 1 || aRotation > 359 || aTiltX < -90 ||
      aTiltX > 90 || aTiltY < -90 || aTiltY > 90) {
    return NS_ERROR_INVALID_ARG;
  }

  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<uint32_t, nsIWidget::TouchPointerState,
                        LayoutDeviceIntPoint, double, uint32_t, int32_t,
                        int32_t, int32_t, nsIObserver*>(
          "nsIWidget::SynthesizeNativePenInput", widget,
          &nsIWidget::SynthesizeNativePenInput, aPointerId,
          (nsIWidget::TouchPointerState)aPointerState,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aPressure, aRotation,
          aTiltX, aTiltY, aButton, aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeTouchpadDoubleTap(int32_t aScreenX,
                                              int32_t aScreenY,
                                              int32_t aModifierFlags) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  MOZ_ASSERT(aModifierFlags >= 0);
  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<LayoutDeviceIntPoint, uint32_t>(
          "nsIWidget::SynthesizeNativeTouchpadDoubleTap", widget,
          &nsIWidget::SynthesizeNativeTouchpadDoubleTap,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aModifierFlags)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendNativeTouchpadPan(uint32_t aEventPhase, int32_t aScreenX,
                                        int32_t aScreenY, double aDeltaX,
                                        double aDeltaY, int32_t aModifierFlags,
                                        nsIObserver* aObserver) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  MOZ_ASSERT(aModifierFlags >= 0);
  NS_DispatchToMainThread(NativeInputRunnable::Create(
      NewRunnableMethod<nsIWidget::TouchpadGesturePhase, LayoutDeviceIntPoint,
                        double, double, uint32_t, nsIObserver*>(
          "nsIWidget::SynthesizeNativeTouchpadPan", widget,
          &nsIWidget::SynthesizeNativeTouchpadPan,
          (nsIWidget::TouchpadGesturePhase)aEventPhase,
          LayoutDeviceIntPoint(aScreenX, aScreenY), aDeltaX, aDeltaY,
          aModifierFlags, aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SuppressAnimation(bool aSuppress) {
  nsIWidget* widget = GetWidget();
  if (widget) {
    widget->SuppressAnimation(aSuppress);
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ClearSharedStyleSheetCache() {
  SharedStyleSheetCache::Clear();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetParsedStyleSheets(uint32_t* aSheets) {
  RefPtr<Document> doc = GetDocument();
  if (!doc) {
    return NS_ERROR_UNEXPECTED;
  }

  *aSheets = doc->CSSLoader()->ParsedSheetCount();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ClearNativeTouchSequence(nsIObserver* aObserver) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  NS_DispatchToMainThread(
      NativeInputRunnable::Create(NewRunnableMethod<nsIObserver*>(
          "nsIWidget::ClearNativeTouchSequence", widget,
          &nsIWidget::ClearNativeTouchSequence, aObserver)));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ActivateNativeMenuItemAt(const nsAString& indexString) {
  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  return widget->ActivateNativeMenuItemAt(indexString);
}

NS_IMETHODIMP
nsDOMWindowUtils::ForceUpdateNativeMenuAt(const nsAString& indexString) {
  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  return widget->ForceUpdateNativeMenuAt(indexString);
}

NS_IMETHODIMP
nsDOMWindowUtils::GetSelectionAsPlaintext(nsAString& aResult) {
  // Get the widget to send the event to.
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  return widget->GetSelectionAsPlaintext(aResult);
}

nsIWidget* nsDOMWindowUtils::GetWidget(nsPoint* aOffset) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (window) {
    nsIDocShell* docShell = window->GetDocShell();
    if (docShell) {
      return nsContentUtils::GetWidget(docShell->GetPresShell(), aOffset);
    }
  }

  return nullptr;
}

nsIWidget* nsDOMWindowUtils::GetWidgetForElement(Element* aElement) {
  if (!aElement) {
    return GetWidget();
  }
  if (Document* doc = aElement->GetUncomposedDoc()) {
    if (PresShell* presShell = doc->GetPresShell()) {
      nsIFrame* frame = aElement->GetPrimaryFrame();
      if (!frame) {
        frame = presShell->GetRootFrame();
      }
      if (frame) {
        return frame->GetNearestWidget();
      }
    }
  }

  return nullptr;
}

NS_IMETHODIMP
nsDOMWindowUtils::GarbageCollect(nsICycleCollectorListener* aListener) {
  AUTO_PROFILER_LABEL("nsDOMWindowUtils::GarbageCollect", GCCC);

  nsJSContext::GarbageCollectNow(JS::GCReason::DOM_UTILS);
  nsJSContext::CycleCollectNow(CCReason::API, aListener);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::CycleCollect(nsICycleCollectorListener* aListener) {
  nsJSContext::CycleCollectNow(CCReason::API, aListener);
  return NS_OK;
}

static bool ParseGCReason(const nsACString& aStr, JS::GCReason* aReason,
                          JS::GCReason aDefault) {
  if (aStr.IsEmpty()) {
    *aReason = aDefault;
    return true;
  }
#define CHECK_REASON(name, _)         \
  if (aStr.EqualsIgnoreCase(#name)) { \
    *aReason = JS::GCReason::name;    \
    return true;                      \
  }
  GCREASONS(CHECK_REASON);
  return false;
}

NS_IMETHODIMP
nsDOMWindowUtils::RunNextCollectorTimer(const nsACString& aReason) {
  JS::GCReason reason;
  if (!ParseGCReason(aReason, &reason, JS::GCReason::DOM_WINDOW_UTILS)) {
    return NS_ERROR_INVALID_ARG;
  }

  nsJSContext::RunNextCollectorTimer(reason);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::PokeGC(const nsACString& aReason) {
  JS::GCReason reason;
  if (!ParseGCReason(aReason, &reason, JS::GCReason::DOM_WINDOW_UTILS)) {
    return NS_ERROR_INVALID_ARG;
  }

  nsJSContext::PokeGC(reason, nullptr);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendSimpleGestureEvent(const nsAString& aType, float aX,
                                         float aY, uint32_t aDirection,
                                         double aDelta, int32_t aModifiers,
                                         uint32_t aClickCount) {
  // get the widget to send the event to
  nsPoint offset;
  nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
  if (!widget) return NS_ERROR_FAILURE;

  EventMessage msg;
  if (aType.EqualsLiteral("MozSwipeGestureMayStart")) {
    msg = eSwipeGestureMayStart;
  } else if (aType.EqualsLiteral("MozSwipeGestureStart")) {
    msg = eSwipeGestureStart;
  } else if (aType.EqualsLiteral("MozSwipeGestureUpdate")) {
    msg = eSwipeGestureUpdate;
  } else if (aType.EqualsLiteral("MozSwipeGestureEnd")) {
    msg = eSwipeGestureEnd;
  } else if (aType.EqualsLiteral("MozSwipeGesture")) {
    msg = eSwipeGesture;
  } else if (aType.EqualsLiteral("MozMagnifyGestureStart")) {
    msg = eMagnifyGestureStart;
  } else if (aType.EqualsLiteral("MozMagnifyGestureUpdate")) {
    msg = eMagnifyGestureUpdate;
  } else if (aType.EqualsLiteral("MozMagnifyGesture")) {
    msg = eMagnifyGesture;
  } else if (aType.EqualsLiteral("MozRotateGestureStart")) {
    msg = eRotateGestureStart;
  } else if (aType.EqualsLiteral("MozRotateGestureUpdate")) {
    msg = eRotateGestureUpdate;
  } else if (aType.EqualsLiteral("MozRotateGesture")) {
    msg = eRotateGesture;
  } else if (aType.EqualsLiteral("MozTapGesture")) {
    msg = eTapGesture;
  } else if (aType.EqualsLiteral("MozPressTapGesture")) {
    msg = ePressTapGesture;
  } else if (aType.EqualsLiteral("MozEdgeUIStarted")) {
    msg = eEdgeUIStarted;
  } else if (aType.EqualsLiteral("MozEdgeUICanceled")) {
    msg = eEdgeUICanceled;
  } else if (aType.EqualsLiteral("MozEdgeUICompleted")) {
    msg = eEdgeUICompleted;
  } else {
    return NS_ERROR_FAILURE;
  }

  WidgetSimpleGestureEvent event(true, msg, widget);
  event.mModifiers = nsContentUtils::GetWidgetModifiers(aModifiers);
  event.mDirection = aDirection;
  event.mDelta = aDelta;
  event.mClickCount = aClickCount;
  event.mTime = PR_IntervalNow();

  nsPresContext* presContext = GetPresContext();
  if (!presContext) return NS_ERROR_FAILURE;

  event.mRefPoint =
      nsContentUtils::ToWidgetPoint(CSSPoint(aX, aY), offset, presContext);

  nsEventStatus status;
  return widget->DispatchEvent(&event, status);
}

NS_IMETHODIMP
nsDOMWindowUtils::ElementFromPoint(float aX, float aY,
                                   bool aIgnoreRootScrollFrame,
                                   bool aFlushLayout, Element** aReturn) {
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  RefPtr<Element> el = doc->ElementFromPointHelper(
      aX, aY, aIgnoreRootScrollFrame, aFlushLayout, ViewportType::Layout);
  el.forget(aReturn);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::NodesFromRect(float aX, float aY, float aTopSize,
                                float aRightSize, float aBottomSize,
                                float aLeftSize, bool aIgnoreRootScrollFrame,
                                bool aFlushLayout, bool aOnlyVisible,
                                float aVisibleThreshold,
                                nsINodeList** aReturn) {
  RefPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  auto list = MakeRefPtr<nsSimpleContentList>(doc);

  // The visible threshold was omitted or given a zero value (which makes no
  // sense), so give a reasonable default.
  if (aVisibleThreshold == 0.0f) {
    aVisibleThreshold = 1.0f;
  }

  AutoTArray<RefPtr<nsINode>, 8> nodes;
  doc->NodesFromRect(aX, aY, aTopSize, aRightSize, aBottomSize, aLeftSize,
                     aIgnoreRootScrollFrame, aFlushLayout, aOnlyVisible,
                     aVisibleThreshold, nodes);
  list->SetCapacity(nodes.Length());
  for (auto& node : nodes) {
    list->AppendElement(node->AsContent());
  }

  list.forget(aReturn);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetTranslationNodes(nsINode* aRoot,
                                      nsITranslationNodeList** aRetVal) {
  NS_ENSURE_ARG_POINTER(aRetVal);
  nsCOMPtr<nsIContent> root = do_QueryInterface(aRoot);
  NS_ENSURE_STATE(root);
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  if (root->OwnerDoc() != doc) {
    return NS_ERROR_DOM_WRONG_DOCUMENT_ERR;
  }

  nsTHashSet<nsIContent*> translationNodesHash(500);
  RefPtr<nsTranslationNodeList> list = new nsTranslationNodeList;

  uint32_t limit = 15000;

  // We begin iteration with content->GetNextNode because we want to explictly
  // skip the root tag from being a translation node.
  nsIContent* content = root;
  while ((limit > 0) && (content = content->GetNextNode(root))) {
    if (!content->IsHTMLElement()) {
      continue;
    }

    // Skip elements that usually contain non-translatable text content.
    if (content->IsAnyOfHTMLElements(nsGkAtoms::script, nsGkAtoms::iframe,
                                     nsGkAtoms::frameset, nsGkAtoms::frame,
                                     nsGkAtoms::code, nsGkAtoms::noscript,
                                     nsGkAtoms::style)) {
      continue;
    }

    // An element is a translation node if it contains
    // at least one text node that has meaningful data
    // for translation
    for (nsIContent* child = content->GetFirstChild(); child;
         child = child->GetNextSibling()) {
      if (child->IsText() && child->GetAsText()->HasTextForTranslation()) {
        translationNodesHash.Insert(content);

        nsIFrame* frame = content->GetPrimaryFrame();
        bool isTranslationRoot = frame && frame->IsBlockFrameOrSubclass();
        if (!isTranslationRoot) {
          // If an element is not a block element, it still
          // can be considered a translation root if the parent
          // of this element didn't make into the list of nodes
          // to be translated.
          bool parentInList = false;
          nsIContent* parent = content->GetParent();
          if (parent) {
            parentInList = translationNodesHash.Contains(parent);
          }
          isTranslationRoot = !parentInList;
        }

        list->AppendElement(content, isTranslationRoot);
        --limit;
        break;
      }
    }
  }

  *aRetVal = list.forget().take();
  return NS_OK;
}

static already_AddRefed<DataSourceSurface> CanvasToDataSourceSurface(
    HTMLCanvasElement* aCanvas) {
  MOZ_ASSERT(aCanvas);
  SurfaceFromElementResult result = nsLayoutUtils::SurfaceFromElement(aCanvas);

  MOZ_ASSERT(result.GetSourceSurface());
  return result.GetSourceSurface()->GetDataSurface();
}

NS_IMETHODIMP
nsDOMWindowUtils::CompareCanvases(nsISupports* aCanvas1, nsISupports* aCanvas2,
                                  uint32_t* aMaxDifference, uint32_t* retVal) {
  nsCOMPtr<nsIContent> contentCanvas1 = do_QueryInterface(aCanvas1);
  nsCOMPtr<nsIContent> contentCanvas2 = do_QueryInterface(aCanvas2);
  auto* canvas1 = HTMLCanvasElement::FromNodeOrNull(contentCanvas1);
  auto* canvas2 = HTMLCanvasElement::FromNodeOrNull(contentCanvas2);

  if (NS_WARN_IF(!canvas1) || NS_WARN_IF(!canvas2)) {
    return NS_ERROR_FAILURE;
  }

  RefPtr<DataSourceSurface> img1 = CanvasToDataSourceSurface(canvas1);
  RefPtr<DataSourceSurface> img2 = CanvasToDataSourceSurface(canvas2);

  if (NS_WARN_IF(!img1) || NS_WARN_IF(!img2) ||
      NS_WARN_IF(img1->GetSize() != img2->GetSize())) {
    return NS_ERROR_FAILURE;
  }

  if (img1->Equals(img2)) {
    // They point to the same underlying content.
    return NS_OK;
  }

  DataSourceSurface::ScopedMap map1(img1, DataSourceSurface::READ);
  DataSourceSurface::ScopedMap map2(img2, DataSourceSurface::READ);

  if (NS_WARN_IF(!map1.IsMapped()) || NS_WARN_IF(!map2.IsMapped())) {
    return NS_ERROR_FAILURE;
  }

  int v;
  IntSize size = img1->GetSize();
  int32_t stride1 = map1.GetStride();
  int32_t stride2 = map2.GetStride();

  // we can optimize for the common all-pass case
  if (stride1 == stride2 && stride1 == size.width * 4) {
    v = memcmp(map1.GetData(), map2.GetData(), size.width * size.height * 4);
    if (v == 0) {
      if (aMaxDifference) *aMaxDifference = 0;
      *retVal = 0;
      return NS_OK;
    }
  }

  uint32_t dc = 0;
  uint32_t different = 0;

  for (int j = 0; j < size.height; j++) {
    unsigned char* p1 = map1.GetData() + j * stride1;
    unsigned char* p2 = map2.GetData() + j * stride2;
    v = memcmp(p1, p2, size.width * 4);

    if (v) {
      for (int i = 0; i < size.width; i++) {
        if (*(uint32_t*)p1 != *(uint32_t*)p2) {
          different++;

          dc = std::max((uint32_t)abs(p1[0] - p2[0]), dc);
          dc = std::max((uint32_t)abs(p1[1] - p2[1]), dc);
          dc = std::max((uint32_t)abs(p1[2] - p2[2]), dc);
          dc = std::max((uint32_t)abs(p1[3] - p2[3]), dc);
        }

        p1 += 4;
        p2 += 4;
      }
    }
  }

  if (aMaxDifference) *aMaxDifference = dc;

  *retVal = different;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsMozAfterPaintPending(bool* aResult) {
  NS_ENSURE_ARG_POINTER(aResult);
  *aResult = false;
  nsPresContext* presContext = GetPresContext();
  if (!presContext) return NS_OK;
  *aResult = presContext->IsDOMPaintEventPending();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsInputTaskManagerSuspended(bool* aResult) {
  *aResult = InputTaskManager::Get()->IsSuspended();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::DisableNonTestMouseEvents(bool aDisable) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
  nsIDocShell* docShell = window->GetDocShell();
  NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
  PresShell* presShell = docShell->GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
  presShell->DisableNonTestMouseEvents(aDisable);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SuppressEventHandling(bool aSuppress) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  if (aSuppress) {
    window->SuppressEventHandling();
  } else {
    window->UnsuppressEventHandling();
  }

  return NS_OK;
}

static nsresult getScrollXYAppUnits(const nsWeakPtr& aWindow, bool aFlushLayout,
                                    nsPoint& aScrollPos) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(aWindow);
  nsCOMPtr<Document> doc = window ? window->GetExtantDoc() : nullptr;
  NS_ENSURE_STATE(doc);

  if (aFlushLayout) {
    doc->FlushPendingNotifications(FlushType::Layout);
  }

  if (PresShell* presShell = doc->GetPresShell()) {
    nsIScrollableFrame* sf = presShell->GetRootScrollFrameAsScrollable();
    if (sf) {
      aScrollPos = sf->GetScrollPosition();
    }
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetScrollXY(bool aFlushLayout, int32_t* aScrollX,
                              int32_t* aScrollY) {
  nsPoint scrollPos(0, 0);
  nsresult rv = getScrollXYAppUnits(mWindow, aFlushLayout, scrollPos);
  NS_ENSURE_SUCCESS(rv, rv);
  *aScrollX = nsPresContext::AppUnitsToIntCSSPixels(scrollPos.x);
  *aScrollY = nsPresContext::AppUnitsToIntCSSPixels(scrollPos.y);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetScrollXYFloat(bool aFlushLayout, float* aScrollX,
                                   float* aScrollY) {
  nsPoint scrollPos(0, 0);
  nsresult rv = getScrollXYAppUnits(mWindow, aFlushLayout, scrollPos);
  NS_ENSURE_SUCCESS(rv, rv);
  *aScrollX = nsPresContext::AppUnitsToFloatCSSPixels(scrollPos.x);
  *aScrollY = nsPresContext::AppUnitsToFloatCSSPixels(scrollPos.y);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ScrollToVisual(float aOffsetX, float aOffsetY,
                                 int32_t aUpdateType, int32_t aScrollMode) {
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  nsPresContext* presContext = doc->GetPresContext();
  NS_ENSURE_TRUE(presContext, NS_ERROR_NOT_AVAILABLE);

  // This should only be called on the root content document.
  NS_ENSURE_TRUE(presContext->IsRootContentDocumentCrossProcess(),
                 NS_ERROR_INVALID_ARG);

  FrameMetrics::ScrollOffsetUpdateType updateType;
  switch (aUpdateType) {
    case UPDATE_TYPE_RESTORE:
      updateType = FrameMetrics::eRestore;
      break;
    case UPDATE_TYPE_MAIN_THREAD:
      updateType = FrameMetrics::eMainThread;
      break;
    default:
      return NS_ERROR_INVALID_ARG;
  }

  ScrollMode scrollMode;
  switch (aScrollMode) {
    case SCROLL_MODE_INSTANT:
      scrollMode = ScrollMode::Instant;
      break;
    case SCROLL_MODE_SMOOTH:
      scrollMode = ScrollMode::SmoothMsd;
      break;
    default:
      return NS_ERROR_INVALID_ARG;
  }

  presContext->PresShell()->ScrollToVisual(
      CSSPoint::ToAppUnits(CSSPoint(aOffsetX, aOffsetY)), updateType,
      scrollMode);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetVisualViewportOffsetRelativeToLayoutViewport(
    float* aOffsetX, float* aOffsetY) {
  *aOffsetX = 0;
  *aOffsetY = 0;

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  PresShell* presShell = doc->GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_NOT_AVAILABLE);

  nsPoint offset = presShell->GetVisualViewportOffsetRelativeToLayoutViewport();
  *aOffsetX = nsPresContext::AppUnitsToFloatCSSPixels(offset.x);
  *aOffsetY = nsPresContext::AppUnitsToFloatCSSPixels(offset.y);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetVisualViewportOffset(int32_t* aOffsetX,
                                          int32_t* aOffsetY) {
  *aOffsetX = 0;
  *aOffsetY = 0;

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  PresShell* presShell = doc->GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_NOT_AVAILABLE);

  nsPoint offset = presShell->GetVisualViewportOffset();
  *aOffsetX = nsPresContext::AppUnitsToIntCSSPixels(offset.x);
  *aOffsetY = nsPresContext::AppUnitsToIntCSSPixels(offset.y);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::TransformRectLayoutToVisual(float aX, float aY, float aWidth,
                                              float aHeight,
                                              DOMRect** aResult) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  PresShell* presShell = GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_NOT_AVAILABLE);

  CSSRect rect(aX, aY, aWidth, aHeight);
  rect = ViewportUtils::DocumentRelativeLayoutToVisual(rect, presShell);

  RefPtr<DOMRect> outRect = new DOMRect(window);
  outRect->SetRect(rect.x, rect.y, rect.width, rect.height);
  outRect.forget(aResult);
  return NS_OK;
}

Result<mozilla::ScreenRect, nsresult> nsDOMWindowUtils::ConvertToScreenRect(
    float aX, float aY, float aWidth, float aHeight) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (!window) {
    return Err(NS_ERROR_NOT_AVAILABLE);
  }

  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return Err(NS_ERROR_NOT_AVAILABLE);
  }

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return Err(NS_ERROR_NOT_AVAILABLE);
  }

  // Note that if the document is NOT in OOP iframes, i.e. it's in the top level
  // content subtree in the same process,
  // nsIWidget::WidgetToTopLevelWidgetTransform() doesn't include the desktop
  // zoom value, so for documents in the top level content document subtree,
  // this ViewportUtils::DocumentRelativeLayoutToVisual call applies the desktop
  // zoom value via PresShell::GetResolution() in the function.
  CSSRect rect(aX, aY, aWidth, aHeight);
  rect = ViewportUtils::DocumentRelativeLayoutToVisual(rect, presShell);

  nsPresContext* presContext = presShell->GetPresContext();
  MOZ_ASSERT(presContext);

  // For OOP iframe documents, we don't have desktop zoom value specifically in
  // each iframe documents (i.e. the in-process root presshell's resolution is
  // 1.0), instead nsIWidget::WidgetToTopLevelWidgetTransform() includes the
  // desktop zoom scale value along with translations by ancestor scroll
  // containers, ancestor CSS transforms, etc.
  nsRect appUnitsRect = CSSPixel::ToAppUnits(rect);
  LayoutDeviceRect devPixelsRect = LayoutDeviceRect::FromAppUnits(
      appUnitsRect, presContext->AppUnitsPerDevPixel());
  devPixelsRect =
      widget->WidgetToTopLevelWidgetTransform().TransformBounds(devPixelsRect) +
      widget->TopLevelWidgetToScreenOffset();

  return ViewAs<ScreenPixel>(
      devPixelsRect, PixelCastJustification::ScreenIsParentLayerForRoot);
}

NS_IMETHODIMP
nsDOMWindowUtils::ToScreenRectInCSSUnits(float aX, float aY, float aWidth,
                                         float aHeight, DOMRect** aResult) {
  ScreenRect rect;
  MOZ_TRY_VAR(rect, ConvertToScreenRect(aX, aY, aWidth, aHeight));

  nsPresContext* presContext = GetPresContext();
  MOZ_ASSERT(presContext);

  const auto devRect = ViewAs<LayoutDevicePixel>(
      rect, PixelCastJustification::ScreenIsParentLayerForRoot);

  // We want to return the screen rect in CSS units of the browser chrome.
  //
  // TODO(emilio): It'd be cleaner to convert callers to use plain toScreenRect,
  // and perform the screen -> CSS rect in the parent process instead, probably.
  const nsRect appUnitsRect = LayoutDeviceRect::ToAppUnits(
      devRect,
      presContext->DeviceContext()->AppUnitsPerDevPixelInTopLevelChromePage());

  RefPtr<DOMRect> outRect = new DOMRect(mWindow);
  outRect->SetLayoutRect(appUnitsRect);

  outRect.forget(aResult);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ToScreenRect(float aX, float aY, float aWidth, float aHeight,
                               DOMRect** aResult) {
  ScreenRect rect;
  MOZ_TRY_VAR(rect, ConvertToScreenRect(aX, aY, aWidth, aHeight));

  RefPtr<DOMRect> outRect = new DOMRect(mWindow);
  outRect->SetRect(rect.x, rect.y, rect.width, rect.height);
  outRect.forget(aResult);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ConvertFromParentProcessWidgetToLocal(float aX, float aY,
                                                        float aWidth,
                                                        float aHeight,
                                                        DOMRect** aResult) {
  if (!XRE_IsContentProcess()) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (!window) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  LayoutDeviceRect devPixelsRect = LayoutDeviceRect(aX, aY, aWidth, aHeight);

  Maybe<LayoutDeviceToLayoutDeviceMatrix4x4> inverse =
      widget->WidgetToTopLevelWidgetTransform().MaybeInverse();
  if (inverse) {
    Maybe<LayoutDeviceRect> rect =
        UntransformBy(*inverse, devPixelsRect, LayoutDeviceRect::MaxIntRect());
    if (rect) {
      RefPtr<DOMRect> outRect = new DOMRect(mWindow);
      outRect->SetRect(rect->x, rect->y, rect->width, rect->height);
      outRect.forget(aResult);
      return NS_OK;
    }
  }

  RefPtr<DOMRect> outRect = new DOMRect(mWindow);
  outRect->SetRect(0, 0, 0, 0);
  outRect.forget(aResult);
  return NS_ERROR_NOT_AVAILABLE;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetDynamicToolbarMaxHeight(uint32_t aHeightInScreen) {
  if (aHeightInScreen > INT32_MAX) {
    return NS_ERROR_INVALID_ARG;
  }

  RefPtr<nsPresContext> presContext = GetPresContext();
  if (!presContext) {
    return NS_OK;
  }

  MOZ_ASSERT(presContext->IsRootContentDocumentCrossProcess());

  presContext->SetDynamicToolbarMaxHeight(ScreenIntCoord(aHeightInScreen));

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetScrollbarSize(bool aFlushLayout, int32_t* aWidth,
                                   int32_t* aHeight) {
  *aWidth = 0;
  *aHeight = 0;

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  if (aFlushLayout) {
    doc->FlushPendingNotifications(FlushType::Layout);
  }

  PresShell* presShell = doc->GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_NOT_AVAILABLE);

  nsIScrollableFrame* scrollFrame = presShell->GetRootScrollFrameAsScrollable();
  NS_ENSURE_TRUE(scrollFrame, NS_OK);

  nsMargin sizes = scrollFrame->GetActualScrollbarSizes();
  *aWidth = nsPresContext::AppUnitsToIntCSSPixels(sizes.LeftRight());
  *aHeight = nsPresContext::AppUnitsToIntCSSPixels(sizes.TopBottom());

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetBoundsWithoutFlushing(Element* aElement,
                                           DOMRect** aResult) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  NS_ENSURE_ARG_POINTER(aElement);

  RefPtr<DOMRect> rect = new DOMRect(window);
  nsIFrame* frame = aElement->GetPrimaryFrame();

  if (frame) {
    nsRect r = nsLayoutUtils::GetAllInFlowRectsUnion(
        frame, nsLayoutUtils::GetContainingBlockForClientRect(frame),
        nsLayoutUtils::RECTS_ACCOUNT_FOR_TRANSFORMS);
    rect->SetLayoutRect(r);
  }

  rect.forget(aResult);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::NeedsFlush(int32_t aFlushType, bool* aResult) {
  MOZ_ASSERT(aResult);

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  PresShell* presShell = doc->GetPresShell();
  NS_ENSURE_STATE(presShell);

  FlushType flushType;
  switch (aFlushType) {
    case FLUSH_STYLE:
      flushType = FlushType::Style;
      break;

    case FLUSH_LAYOUT:
      flushType = FlushType::Layout;
      break;

    case FLUSH_DISPLAY:
      flushType = FlushType::Display;
      break;

    default:
      return NS_ERROR_INVALID_ARG;
  }

  *aResult = presShell->NeedFlush(flushType);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::FlushLayoutWithoutThrottledAnimations() {
  nsCOMPtr<Document> doc = GetDocument();
  if (doc) {
    doc->FlushPendingNotifications(
        ChangesToFlush(FlushType::Layout, false /* flush animations */));
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetRootBounds(DOMRect** aResult) {
  Document* doc = GetDocument();
  NS_ENSURE_STATE(doc);

  nsRect bounds(0, 0, 0, 0);
  PresShell* presShell = doc->GetPresShell();
  if (presShell) {
    nsIScrollableFrame* sf = presShell->GetRootScrollFrameAsScrollable();
    if (sf) {
      bounds = sf->GetScrollRange();
      bounds.SetWidth(bounds.Width() + sf->GetScrollPortRect().Width());
      bounds.SetHeight(bounds.Height() + sf->GetScrollPortRect().Height());
    } else if (presShell->GetRootFrame()) {
      bounds = presShell->GetRootFrame()->GetRect();
    }
  }

  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  RefPtr<DOMRect> rect = new DOMRect(window);
  rect->SetRect(nsPresContext::AppUnitsToFloatCSSPixels(bounds.x),
                nsPresContext::AppUnitsToFloatCSSPixels(bounds.y),
                nsPresContext::AppUnitsToFloatCSSPixels(bounds.Width()),
                nsPresContext::AppUnitsToFloatCSSPixels(bounds.Height()));
  rect.forget(aResult);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIMEIsOpen(bool* aState) {
  NS_ENSURE_ARG_POINTER(aState);

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  // Open state should not be available when IME is not enabled.
  InputContext context = widget->GetInputContext();
  if (context.mIMEState.mEnabled != IMEEnabled::Enabled) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  if (context.mIMEState.mOpen == IMEState::OPEN_STATE_NOT_SUPPORTED) {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
  *aState = (context.mIMEState.mOpen == IMEState::OPEN);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIMEStatus(uint32_t* aState) {
  NS_ENSURE_ARG_POINTER(aState);

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  InputContext context = widget->GetInputContext();
  *aState = static_cast<uint32_t>(context.mIMEState.mEnabled);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetInputContextURI(nsIURI** aURI) {
  NS_ENSURE_ARG_POINTER(aURI);

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  nsCOMPtr<nsIURI> documentURI = widget->GetInputContext().mURI;
  documentURI.forget(aURI);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetInputContextOrigin(uint32_t* aOrigin) {
  NS_ENSURE_ARG_POINTER(aOrigin);

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  InputContext context = widget->GetInputContext();
  static_assert(static_cast<uint32_t>(InputContext::Origin::ORIGIN_MAIN) ==
                INPUT_CONTEXT_ORIGIN_MAIN);
  static_assert(static_cast<uint32_t>(InputContext::Origin::ORIGIN_CONTENT) ==
                INPUT_CONTEXT_ORIGIN_CONTENT);
  MOZ_ASSERT(context.mOrigin == InputContext::Origin::ORIGIN_MAIN ||
             context.mOrigin == InputContext::Origin::ORIGIN_CONTENT);
  *aOrigin = static_cast<uint32_t>(context.mOrigin);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetNodeObservedByIMEContentObserver(nsINode** aNode) {
  NS_ENSURE_ARG_POINTER(aNode);

  IMEContentObserver* observer = IMEStateManager::GetActiveContentObserver();
  if (!observer) {
    *aNode = nullptr;
    return NS_OK;
  }
  *aNode = do_AddRef(observer->GetObservingElement()).take();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetCanvasBackgroundColor(nsAString& aColor) {
  if (RefPtr<Document> doc = GetDocument()) {
    doc->FlushPendingNotifications(FlushType::Frames);
  }
  nscolor color = NS_RGB(255, 255, 255);
  if (PresShell* presShell = GetPresShell()) {
    color = presShell->ComputeCanvasBackground().mColor;
  }
  nsStyleUtil::GetSerializedColorValue(color, aColor);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFocusedInputType(nsAString& aType) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  aType = widget->GetInputContext().mHTMLInputType;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFocusedActionHint(nsAString& aType) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  aType = widget->GetInputContext().mActionHint;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFocusedInputMode(nsAString& aInputMode) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }
  aInputMode = widget->GetInputContext().mHTMLInputMode;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFocusedAutocapitalize(nsAString& aAutocapitalize) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }
  aAutocapitalize = widget->GetInputContext().mAutocapitalize;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetViewId(Element* aElement, nsViewID* aResult) {
  if (aElement && nsLayoutUtils::FindIDFor(aElement, aResult)) {
    return NS_OK;
  }
  return NS_ERROR_NOT_AVAILABLE;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFullZoom(float* aFullZoom) {
  *aFullZoom = 1.0f;

  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_OK;
  }

  *aFullZoom = presContext->DeviceContext()->GetFullZoom();

  return NS_OK;
}

NS_IMETHODIMP nsDOMWindowUtils::DispatchDOMEventViaPresShellForTesting(
    nsINode* aTarget, Event* aEvent, bool* aRetVal) {
  NS_ENSURE_STATE(aEvent);
  aEvent->SetTrusted(true);
  WidgetEvent* internalEvent = aEvent->WidgetEventPtr();
  NS_ENSURE_STATE(internalEvent);
  // This API is currently used only by EventUtils.js.  Thus we should always
  // set mIsSynthesizedForTests to true.
  internalEvent->mFlags.mIsSynthesizedForTests = true;
  nsCOMPtr<nsIContent> content = nsIContent::FromNodeOrNull(aTarget);
  NS_ENSURE_STATE(content);
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (content->OwnerDoc()->GetWindow() != window) {
    return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
  }
  nsCOMPtr<Document> targetDoc = content->GetUncomposedDoc();
  NS_ENSURE_STATE(targetDoc);
  RefPtr<PresShell> targetPresShell = targetDoc->GetPresShell();
  NS_ENSURE_STATE(targetPresShell);

  targetDoc->FlushPendingNotifications(FlushType::Layout);

  nsEventStatus status = nsEventStatus_eIgnore;
  targetPresShell->HandleEventWithTarget(internalEvent, nullptr, content,
                                         &status);
  *aRetVal = (status != nsEventStatus_eConsumeNoDefault);
  return NS_OK;
}

static void InitEvent(WidgetGUIEvent& aEvent,
                      LayoutDeviceIntPoint* aPt = nullptr) {
  if (aPt) {
    aEvent.mRefPoint = *aPt;
  }
  aEvent.mTime = PR_IntervalNow();
}

NS_IMETHODIMP
nsDOMWindowUtils::SendQueryContentEvent(uint32_t aType, int64_t aOffset,
                                        uint32_t aLength, int32_t aX,
                                        int32_t aY, uint32_t aAdditionalFlags,
                                        nsIQueryContentEventResult** aResult) {
  *aResult = nullptr;

  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsIDocShell* docShell = window->GetDocShell();
  NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);

  PresShell* presShell = docShell->GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);

  nsPresContext* presContext = presShell->GetPresContext();
  NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);

  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  EventMessage message;
  switch (aType) {
    case QUERY_SELECTED_TEXT:
      message = eQuerySelectedText;
      break;
    case QUERY_TEXT_CONTENT:
      message = eQueryTextContent;
      break;
    case QUERY_CARET_RECT:
      message = eQueryCaretRect;
      break;
    case QUERY_TEXT_RECT:
      message = eQueryTextRect;
      break;
    case QUERY_EDITOR_RECT:
      message = eQueryEditorRect;
      break;
    case QUERY_CHARACTER_AT_POINT:
      message = eQueryCharacterAtPoint;
      break;
    case QUERY_TEXT_RECT_ARRAY:
      message = eQueryTextRectArray;
      break;
    default:
      return NS_ERROR_INVALID_ARG;
  }

  SelectionType selectionType = SelectionType::eNormal;
  static const uint32_t kSelectionFlags =
      QUERY_CONTENT_FLAG_SELECTION_SPELLCHECK |
      QUERY_CONTENT_FLAG_SELECTION_IME_RAWINPUT |
      QUERY_CONTENT_FLAG_SELECTION_IME_SELECTEDRAWTEXT |
      QUERY_CONTENT_FLAG_SELECTION_IME_CONVERTEDTEXT |
      QUERY_CONTENT_FLAG_SELECTION_IME_SELECTEDCONVERTEDTEXT |
      QUERY_CONTENT_FLAG_SELECTION_ACCESSIBILITY |
      QUERY_CONTENT_FLAG_SELECTION_FIND |
      QUERY_CONTENT_FLAG_SELECTION_URLSECONDARY |
      QUERY_CONTENT_FLAG_SELECTION_URLSTRIKEOUT;
  switch (aAdditionalFlags & kSelectionFlags) {
    case QUERY_CONTENT_FLAG_SELECTION_SPELLCHECK:
      selectionType = SelectionType::eSpellCheck;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_IME_RAWINPUT:
      selectionType = SelectionType::eIMERawClause;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_IME_SELECTEDRAWTEXT:
      selectionType = SelectionType::eIMESelectedRawClause;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_IME_CONVERTEDTEXT:
      selectionType = SelectionType::eIMEConvertedClause;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_IME_SELECTEDCONVERTEDTEXT:
      selectionType = SelectionType::eIMESelectedClause;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_ACCESSIBILITY:
      selectionType = SelectionType::eAccessibility;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_FIND:
      selectionType = SelectionType::eFind;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_URLSECONDARY:
      selectionType = SelectionType::eURLSecondary;
      break;
    case QUERY_CONTENT_FLAG_SELECTION_URLSTRIKEOUT:
      selectionType = SelectionType::eURLStrikeout;
      break;
    case 0:
      break;
    default:
      return NS_ERROR_INVALID_ARG;
  }

  if (selectionType != SelectionType::eNormal &&
      message != eQuerySelectedText) {
    return NS_ERROR_INVALID_ARG;
  }

  nsCOMPtr<nsIWidget> targetWidget = widget;
  LayoutDeviceIntPoint pt(aX, aY);

  WidgetQueryContentEvent::Options options;
  options.mUseNativeLineBreak =
      !(aAdditionalFlags & QUERY_CONTENT_FLAG_USE_XP_LINE_BREAK);
  options.mRelativeToInsertionPoint =
      (aAdditionalFlags &
       QUERY_CONTENT_FLAG_OFFSET_RELATIVE_TO_INSERTION_POINT) != 0;
  if (options.mRelativeToInsertionPoint) {
    switch (message) {
      case eQueryTextContent:
      case eQueryCaretRect:
      case eQueryTextRect:
        break;
      default:
        return NS_ERROR_INVALID_ARG;
    }
  } else if (aOffset < 0) {
    return NS_ERROR_INVALID_ARG;
  }

  if (message == eQueryCharacterAtPoint) {
    // Looking for the widget at the point.
    nsIFrame* popupFrame = nsLayoutUtils::GetPopupFrameForPoint(
        presContext->GetRootPresContext(), widget, pt);

    LayoutDeviceIntRect widgetBounds = widget->GetClientBounds();
    widgetBounds.MoveTo(0, 0);

    // There is no popup frame at the point and the point isn't in our widget,
    // we cannot process this request.
    NS_ENSURE_TRUE(popupFrame || widgetBounds.Contains(pt), NS_ERROR_FAILURE);

    // Fire the event on the widget at the point
    if (popupFrame) {
      targetWidget = popupFrame->GetNearestWidget();
    }
  }

  pt += widget->WidgetToScreenOffset() - targetWidget->WidgetToScreenOffset();

  WidgetQueryContentEvent queryEvent(true, message, targetWidget);
  InitEvent(queryEvent, &pt);

  switch (message) {
    case eQueryTextContent:
      queryEvent.InitForQueryTextContent(aOffset, aLength, options);
      break;
    case eQueryCaretRect:
      queryEvent.InitForQueryCaretRect(aOffset, options);
      break;
    case eQueryTextRect:
      queryEvent.InitForQueryTextRect(aOffset, aLength, options);
      break;
    case eQuerySelectedText:
      queryEvent.InitForQuerySelectedText(selectionType, options);
      break;
    case eQueryTextRectArray:
      queryEvent.InitForQueryTextRectArray(aOffset, aLength, options);
      break;
    default:
      queryEvent.Init(options);
      break;
  }

  nsEventStatus status;
  nsresult rv = targetWidget->DispatchEvent(&queryEvent, status);
  NS_ENSURE_SUCCESS(rv, rv);

  auto* result = new nsQueryContentEventResult(std::move(queryEvent));
  result->SetEventResult(widget);
  NS_ADDREF(*aResult = result);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendSelectionSetEvent(uint32_t aOffset, uint32_t aLength,
                                        uint32_t aAdditionalFlags,
                                        bool* aResult) {
  *aResult = false;

  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  WidgetSelectionEvent selectionEvent(true, eSetSelection, widget);
  InitEvent(selectionEvent);

  selectionEvent.mOffset = aOffset;
  selectionEvent.mLength = aLength;
  selectionEvent.mReversed = (aAdditionalFlags & SELECTION_SET_FLAG_REVERSE);
  selectionEvent.mUseNativeLineBreak =
      !(aAdditionalFlags & SELECTION_SET_FLAG_USE_XP_LINE_BREAK);

  nsEventStatus status;
  nsresult rv = widget->DispatchEvent(&selectionEvent, status);
  NS_ENSURE_SUCCESS(rv, rv);

  *aResult = selectionEvent.mSucceeded;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SendContentCommandEvent(const nsAString& aType,
                                          nsITransferable* aTransferable,
                                          const nsAString& aString) {
  // get the widget to send the event to
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  EventMessage msg;
  if (aType.EqualsLiteral("cut")) {
    msg = eContentCommandCut;
  } else if (aType.EqualsLiteral("copy")) {
    msg = eContentCommandCopy;
  } else if (aType.EqualsLiteral("paste")) {
    msg = eContentCommandPaste;
  } else if (aType.EqualsLiteral("delete")) {
    msg = eContentCommandDelete;
  } else if (aType.EqualsLiteral("undo")) {
    msg = eContentCommandUndo;
  } else if (aType.EqualsLiteral("redo")) {
    msg = eContentCommandRedo;
  } else if (aType.EqualsLiteral("insertText")) {
    msg = eContentCommandInsertText;
  } else if (aType.EqualsLiteral("pasteTransferable")) {
    msg = eContentCommandPasteTransferable;
  } else {
    return NS_ERROR_FAILURE;
  }

  WidgetContentCommandEvent event(true, msg, widget);
  if (msg == eContentCommandInsertText) {
    event.mString.emplace(aString);
  }
  if (msg == eContentCommandPasteTransferable) {
    event.mTransferable = aTransferable;
  }

  nsEventStatus status;
  return widget->DispatchEvent(&event, status);
}

NS_IMETHODIMP
nsDOMWindowUtils::GetClassName(JS::Handle<JS::Value> aObject, JSContext* aCx,
                               char** aName) {
  // Our argument must be a non-null object.
  if (aObject.isPrimitive()) {
    return NS_ERROR_XPC_BAD_CONVERT_JS;
  }

  *aName = NS_xstrdup(JS::GetClass(aObject.toObjectOrNull())->name);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetVisitedDependentComputedStyle(
    Element* aElement, const nsAString& aPseudoElement,
    const nsAString& aPropertyName, nsAString& aResult) {
  aResult.Truncate();

  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window && aElement);
  nsCOMPtr<nsPIDOMWindowInner> innerWindow = window->GetCurrentInnerWindow();
  NS_ENSURE_STATE(innerWindow);

  nsCOMPtr<nsICSSDeclaration> decl;
  {
    ErrorResult rv;
    decl = innerWindow->GetComputedStyle(*aElement, aPseudoElement, rv);
    ENSURE_SUCCESS(rv, rv.StealNSResult());
  }

  nsAutoCString result;

  static_cast<nsComputedDOMStyle*>(decl.get())->SetExposeVisitedStyle(true);
  nsresult rv =
      decl->GetPropertyValue(NS_ConvertUTF16toUTF8(aPropertyName), result);
  static_cast<nsComputedDOMStyle*>(decl.get())->SetExposeVisitedStyle(false);

  CopyUTF8toUTF16(result, aResult);
  return rv;
}

NS_IMETHODIMP
nsDOMWindowUtils::EnterModalState() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  window->EnterModalState();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::LeaveModalState() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  window->LeaveModalState();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsInModalState(bool* retval) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  *retval = nsGlobalWindowOuter::Cast(window)->IsInModalState();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SuspendTimeouts() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsCOMPtr<nsPIDOMWindowInner> inner = window->GetCurrentInnerWindow();
  NS_ENSURE_TRUE(inner, NS_ERROR_FAILURE);

  inner->Suspend();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ResumeTimeouts() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsCOMPtr<nsPIDOMWindowInner> inner = window->GetCurrentInnerWindow();
  NS_ENSURE_TRUE(inner, NS_ERROR_FAILURE);

  inner->Resume();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetLayerManagerType(nsAString& aType) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) return NS_ERROR_FAILURE;

  renderer->GetBackendName(aType);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetLayerManagerRemote(bool* retval) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) return NS_ERROR_FAILURE;

  *retval = !!renderer->AsKnowsCompositor();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsWebRenderRequested(bool* retval) {
  *retval = gfxPlatform::WebRenderPrefEnabled() ||
            gfxPlatform::WebRenderEnvvarEnabled();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetCurrentAudioBackend(nsAString& aBackend) {
  CubebUtils::GetCurrentBackend(aBackend);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetCurrentMaxAudioChannels(uint32_t* aChannels) {
  *aChannels = CubebUtils::MaxNumberOfChannels();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetCurrentPreferredSampleRate(uint32_t* aRate) {
  *aRate = CubebUtils::PreferredSampleRate();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::DefaultDevicesRoundTripLatency(Promise** aOutPromise) {
  NS_ENSURE_ARG_POINTER(aOutPromise);
  *aOutPromise = nullptr;

  nsCOMPtr<nsPIDOMWindowOuter> outer = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(outer);
  nsCOMPtr<nsPIDOMWindowInner> inner = outer->GetCurrentInnerWindow();
  NS_ENSURE_STATE(inner);

  ErrorResult err;
  RefPtr<Promise> promise = Promise::Create(inner->AsGlobal(), err);
  if (NS_WARN_IF(err.Failed())) {
    return err.StealNSResult();
  }

  NS_ADDREF(promise.get());
  void* p = reinterpret_cast<void*>(promise.get());
  NS_DispatchBackgroundTask(
      NS_NewRunnableFunction("DefaultDevicesRoundTripLatency", [p]() {
        double mean, stddev;
        bool success =
            CubebUtils::EstimatedRoundTripLatencyDefaultDevices(&mean, &stddev);

        NS_DispatchToMainThread(NS_NewRunnableFunction(
            "DefaultDevicesRoundTripLatency", [p, success, mean, stddev]() {
              Promise* promise = reinterpret_cast<Promise*>(p);
              if (!success) {
                promise->MaybeReject(NS_ERROR_FAILURE);
                NS_RELEASE(promise);
                return;
              }
              nsTArray<double> a;
              a.AppendElement(mean);
              a.AppendElement(stddev);
              promise->MaybeResolve(a);
              NS_RELEASE(promise);
            }));
      }));

  promise.forget(aOutPromise);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::AudioDevices(uint16_t aSide, nsIArray** aDevices) {
  NS_ENSURE_ARG_POINTER(aDevices);
  NS_ENSURE_ARG((aSide == AUDIO_INPUT) || (aSide == AUDIO_OUTPUT));
  *aDevices = nullptr;

  nsresult rv = NS_OK;
  nsCOMPtr<nsIMutableArray> devices =
      do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv, rv);

  RefPtr<CubebDeviceEnumerator> enumerator = Enumerator::GetInstance();
  RefPtr<const CubebDeviceEnumerator::AudioDeviceSet> collection;
  if (aSide == AUDIO_INPUT) {
    collection = enumerator->EnumerateAudioInputDevices();
  } else {
    collection = enumerator->EnumerateAudioOutputDevices();
  }

  for (const auto& device : *collection) {
    devices->AppendElement(device);
  }

  devices.forget(aDevices);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::StartFrameTimeRecording(uint32_t* startIndex) {
  NS_ENSURE_ARG_POINTER(startIndex);

  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) return NS_ERROR_FAILURE;

  const uint32_t kRecordingMinSize = 60 * 10;       // 10 seconds @60 fps.
  const uint32_t kRecordingMaxSize = 60 * 60 * 60;  // One hour
  uint32_t bufferSize =
      Preferences::GetUint("toolkit.framesRecording.bufferSize", uint32_t(0));
  bufferSize = std::min(bufferSize, kRecordingMaxSize);
  bufferSize = std::max(bufferSize, kRecordingMinSize);
  *startIndex = renderer->StartFrameTimeRecording(bufferSize);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::StopFrameTimeRecording(uint32_t startIndex,
                                         nsTArray<float>& frameIntervals) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) return NS_ERROR_FAILURE;

  renderer->StopFrameTimeRecording(startIndex, frameIntervals);

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::AdvanceTimeAndRefresh(int64_t aMilliseconds) {
  // Before we advance the time, we should trigger any animations that are
  // waiting to start. This is because there are many tests that call this
  // which expect animations to start immediately. Ideally, we should make
  // all these tests do an asynchronous wait on the corresponding animation's
  // 'ready' promise before continuing. Then we could remove the special
  // handling here and the code path followed when testing would more closely
  // match the code path during regular operation. Filed as bug 1112957.
  nsCOMPtr<Document> doc = GetDocument();
  if (doc) {
    PendingAnimationTracker* tracker = doc->GetPendingAnimationTracker();
    if (tracker) {
      tracker->TriggerPendingAnimationsNow();
    }
  }

  nsPresContext* presContext = GetPresContext();
  if (presContext) {
    RefPtr<nsRefreshDriver> driver = presContext->RefreshDriver();
    driver->AdvanceTimeAndRefresh(aMilliseconds);

    if (WebRenderBridgeChild* wrbc = GetWebRenderBridge()) {
      wrbc->SendSetTestSampleTime(driver->MostRecentRefresh());
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetLastTransactionId(uint64_t* aLastTransactionId) {
  nsCOMPtr<nsIDocShell> docShell = GetDocShell();
  if (!docShell) {
    return NS_ERROR_UNEXPECTED;
  }

  nsCOMPtr<nsIDocShellTreeItem> rootTreeItem;
  docShell->GetInProcessRootTreeItem(getter_AddRefs(rootTreeItem));
  docShell = do_QueryInterface(rootTreeItem);
  if (!docShell) {
    return NS_ERROR_UNEXPECTED;
  }

  nsPresContext* presContext = docShell->GetPresContext();
  if (!presContext) {
    return NS_ERROR_UNEXPECTED;
  }

  nsRefreshDriver* driver = presContext->RefreshDriver();
  *aLastTransactionId = uint64_t(driver->LastTransactionId());
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::RestoreNormalRefresh() {
  // Kick the compositor out of test mode before the refresh driver, so that
  // the refresh driver doesn't send an update that gets ignored by the
  // compositor.
  if (WebRenderBridgeChild* wrbc = GetWebRenderBridge()) {
    wrbc->SendLeaveTestMode();
  }

  if (nsPresContext* pc = GetPresContext()) {
    nsRefreshDriver* driver = pc->RefreshDriver();
    driver->RestoreNormalRefresh();
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsTestControllingRefreshes(bool* aResult) {
  nsPresContext* pc = GetPresContext();
  *aResult =
      pc ? pc->RefreshDriver()->IsTestControllingRefreshesEnabled() : false;

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetAsyncPanZoomEnabled(bool* aResult) {
  nsIWidget* widget = GetWidget();
  if (widget) {
    *aResult = widget->AsyncPanZoomEnabled();
  } else {
    *aResult = gfxPlatform::AsyncPanZoomEnabled();
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetAsyncScrollOffset(Element* aElement, float aX, float aY) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }
  ScrollableLayerGuid::ViewID viewId;
  if (!nsLayoutUtils::FindIDFor(aElement, &viewId)) {
    return NS_ERROR_UNEXPECTED;
  }
  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }
  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) {
    return NS_ERROR_FAILURE;
  }
  if (WebRenderLayerManager* wr = renderer->AsWebRender()) {
    WebRenderBridgeChild* wrbc = wr->WrBridge();
    if (!wrbc) {
      return NS_ERROR_UNEXPECTED;
    }
    wrbc->SendSetAsyncScrollOffset(viewId, aX, aY);
    return NS_OK;
  }
  return NS_ERROR_UNEXPECTED;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetAsyncZoom(Element* aRootElement, float aValue) {
  if (!aRootElement) {
    return NS_ERROR_INVALID_ARG;
  }
  ScrollableLayerGuid::ViewID viewId;
  if (!nsLayoutUtils::FindIDFor(aRootElement, &viewId)) {
    return NS_ERROR_UNEXPECTED;
  }
  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }
  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) {
    return NS_ERROR_FAILURE;
  }
  if (WebRenderLayerManager* wr = renderer->AsWebRender()) {
    WebRenderBridgeChild* wrbc = wr->WrBridge();
    if (!wrbc) {
      return NS_ERROR_UNEXPECTED;
    }
    wrbc->SendSetAsyncZoom(viewId, aValue);
    return NS_OK;
  }
  return NS_ERROR_UNEXPECTED;
}

NS_IMETHODIMP
nsDOMWindowUtils::FlushApzRepaints(bool* aOutResult) {
  nsIWidget* widget = GetWidget();
  if (!widget) {
    *aOutResult = false;
    return NS_OK;
  }
  // If APZ is not enabled, this function is a no-op.
  if (!widget->AsyncPanZoomEnabled()) {
    *aOutResult = false;
    return NS_OK;
  }
  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) {
    *aOutResult = false;
    return NS_OK;
  }
  if (WebRenderLayerManager* wr = renderer->AsWebRender()) {
    WebRenderBridgeChild* wrbc = wr->WrBridge();
    if (!wrbc) {
      return NS_ERROR_UNEXPECTED;
    }
    wrbc->SendFlushApzRepaints();
    *aOutResult = true;
    return NS_OK;
  }
  *aOutResult = false;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::DisableApzForElement(Element* aElement) {
  aElement->SetProperty(nsGkAtoms::apzDisabled, reinterpret_cast<void*>(true));
  nsIScrollableFrame* sf = nsLayoutUtils::FindScrollableFrameFor(aElement);
  if (!sf) {
    return NS_OK;
  }
  nsIFrame* frame = do_QueryFrame(sf);
  if (!frame) {
    return NS_OK;
  }
  frame->SchedulePaint();
  return NS_OK;
}

static nsTArray<nsIScrollableFrame*> CollectScrollableAncestors(
    nsIFrame* aStart) {
  nsTArray<nsIScrollableFrame*> result;
  nsIFrame* frame = aStart;
  while (frame) {
    frame = nsLayoutUtils::GetCrossDocParentFrame(frame);
    if (!frame) {
      break;
    }
    nsIScrollableFrame* scrollAncestor =
        nsLayoutUtils::GetAsyncScrollableAncestorFrame(frame);
    if (!scrollAncestor) {
      break;
    }
    result.AppendElement(scrollAncestor);
    frame = do_QueryFrame(scrollAncestor);
  }
  return result;
}

NS_IMETHODIMP
nsDOMWindowUtils::ZoomToFocusedInput() {
  if (!Preferences::GetBool("apz.zoom-to-focused-input.enabled")) {
    return NS_OK;
  }

  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_OK;
  }

  // If APZ is not enabled, this function is a no-op.
  //
  // FIXME(emilio): This is not quite true anymore now that we also
  // ScrollIntoView() too...
  if (!widget->AsyncPanZoomEnabled()) {
    return NS_OK;
  }

  nsFocusManager* fm = nsFocusManager::GetFocusManager();
  if (!fm) {
    return NS_OK;
  }

  RefPtr<Element> element = fm->GetFocusedElement();
  if (!element) {
    return NS_OK;
  }

  RefPtr<PresShell> presShell =
      APZCCallbackHelper::GetRootContentDocumentPresShellForContent(element);
  if (!presShell) {
    return NS_OK;
  }

  bool shouldSkip = [&] {
    nsIFrame* frame = element->GetPrimaryFrame();
    if (!frame) {
      return true;
    }

    // Skip zooming to focused inputs in fixed subtrees, as we'd scroll to the
    // top unnecessarily, see bug 1627734.
    //
    // We could try to teach apz to zoom to a rect only without panning, or
    // maybe we could give it a rect offsetted by the root scroll position, if
    // we wanted to do this.
    for (; frame; frame = nsLayoutUtils::GetCrossDocParentFrame(frame)) {
      if (frame->PresShell() == presShell) {
        // Note that we only do this if the frame belongs to `presShell` (that
        // is, we still zoom in fixed elements in subdocuments, as they're not
        // fixed to the root content document).
        return nsLayoutUtils::IsInPositionFixedSubtree(frame);
      }
      frame = frame->PresShell()->GetRootFrame();
    }

    return false;
  }();

  // The content may be inside a scrollable subframe inside a non-scrollable
  // root content document. In this scenario, we want to ensure that the
  // main-thread side knows to scroll the content into view before we get
  // the bounding content rect and ask APZ to adjust the visual viewport.
  presShell->ScrollContentIntoView(
      element, ScrollAxis(WhereToScroll::Nearest, WhenToScroll::IfNotVisible),
      ScrollAxis(WhereToScroll::Nearest, WhenToScroll::IfNotVisible),
      ScrollFlags::ScrollOverflowHidden);

  if (shouldSkip) {
    return NS_OK;
  }

  RefPtr<Document> document = presShell->GetDocument();
  if (!document) {
    return NS_OK;
  }

  uint32_t presShellId;
  ScrollableLayerGuid::ViewID viewId;
  if (!APZCCallbackHelper::GetOrCreateScrollIdentifiers(
          document->GetDocumentElement(), &presShellId, &viewId)) {
    return NS_OK;
  }

  uint32_t flags = layers::DISABLE_ZOOM_OUT;
  if (!Preferences::GetBool("formhelper.autozoom") ||
      Preferences::GetBool("formhelper.autozoom.force-disable.test-only",
                           /* aFallback = */ false)) {
    flags |= layers::PAN_INTO_VIEW_ONLY;
  } else {
    flags |= layers::ONLY_ZOOM_TO_DEFAULT_SCALE;
  }

  nsIScrollableFrame* rootScrollFrame =
      presShell->GetRootScrollFrameAsScrollable();
  if (!rootScrollFrame) {
    return NS_OK;
  }

  CSSRect bounds;
  if (element->IsHTMLElement(nsGkAtoms::input)) {
    bounds = nsLayoutUtils::GetBoundingContentRect(element, rootScrollFrame);
  } else {
    // When focused elment is content editable or <textarea> element,
    // focused element will have multi-line content.
    nsIFrame* frame = element->GetPrimaryFrame();
    if (frame) {
      RefPtr<nsCaret> caret = frame->PresShell()->GetCaret();
      if (caret && caret->IsVisible()) {
        nsRect rect;
        if (nsIFrame* frame = caret->GetGeometry(&rect)) {
          bounds = nsLayoutUtils::GetBoundingFrameRect(frame, rootScrollFrame);
        }
      }
    }
    if (bounds.IsEmpty()) {
      // Fallback if no caret frame.
      bounds = nsLayoutUtils::GetBoundingContentRect(element, rootScrollFrame);
    }
  }

  if (bounds.IsEmpty()) {
    // Do not zoom on empty bounds. Bail out.
    return NS_OK;
  }

  bounds.Inflate(15.0f, 0.0f);

  bool waitForRefresh = false;
  for (nsIScrollableFrame* scrollAncestor :
       CollectScrollableAncestors(element->GetPrimaryFrame())) {
    if (scrollAncestor->HasScrollUpdates()) {
      waitForRefresh = true;
      break;
    }
  }
  if (waitForRefresh) {
    waitForRefresh = false;
    if (nsPresContext* presContext = presShell->GetPresContext()) {
      waitForRefresh = true;
      presContext->RegisterManagedPostRefreshObserver(
          new ManagedPostRefreshObserver(
              presContext, [widget = RefPtr<nsIWidget>(widget), presShellId,
                            viewId, bounds, flags](bool aWasCanceled) {
                if (!aWasCanceled) {
                  widget->ZoomToRect(presShellId, viewId, bounds, flags);
                }
                return ManagedPostRefreshObserver::Unregister::Yes;
              }));
    }
  }
  if (!waitForRefresh) {
    widget->ZoomToRect(presShellId, viewId, bounds, flags);
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ComputeAnimationDistance(Element* aElement,
                                           const nsAString& aProperty,
                                           const nsAString& aValue1,
                                           const nsAString& aValue2,
                                           double* aResult) {
  NS_ENSURE_ARG_POINTER(aElement);

  nsCSSPropertyID property =
      nsCSSProps::LookupProperty(NS_ConvertUTF16toUTF8(aProperty));
  if (property == eCSSProperty_UNKNOWN || nsCSSProps::IsShorthand(property)) {
    return NS_ERROR_ILLEGAL_VALUE;
  }

  AnimationValue v1 = AnimationValue::FromString(
      property, NS_ConvertUTF16toUTF8(aValue1), aElement);
  AnimationValue v2 = AnimationValue::FromString(
      property, NS_ConvertUTF16toUTF8(aValue2), aElement);
  if (v1.IsNull() || v2.IsNull()) {
    return NS_ERROR_ILLEGAL_VALUE;
  }

  *aResult = v1.ComputeDistance(property, v2);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetUnanimatedComputedStyle(Element* aElement,
                                             const nsAString& aPseudoElement,
                                             const nsAString& aProperty,
                                             int32_t aFlushType,
                                             nsAString& aResult) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  nsCSSPropertyID propertyID =
      nsCSSProps::LookupProperty(NS_ConvertUTF16toUTF8(aProperty));
  if (propertyID == eCSSProperty_UNKNOWN ||
      nsCSSProps::IsShorthand(propertyID)) {
    return NS_ERROR_INVALID_ARG;
  }

  switch (aFlushType) {
    case FLUSH_NONE:
      break;
    case FLUSH_STYLE: {
      if (Document* doc = aElement->GetComposedDoc()) {
        doc->FlushPendingNotifications(FlushType::Style);
      }
      break;
    }
    default:
      return NS_ERROR_INVALID_ARG;
  }

  RefPtr<PresShell> presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  Maybe<PseudoStyleType> pseudo =
      nsCSSPseudoElements::GetPseudoType(aPseudoElement);
  if (!pseudo) {
    return NS_ERROR_FAILURE;
  }
  RefPtr<const ComputedStyle> computedStyle =
      nsComputedDOMStyle::GetUnanimatedComputedStyleNoFlush(aElement, *pseudo);
  if (!computedStyle) {
    return NS_ERROR_FAILURE;
  }

  RefPtr<RawServoAnimationValue> value =
      Servo_ComputedValues_ExtractAnimationValue(computedStyle, propertyID)
          .Consume();
  if (!value) {
    return NS_ERROR_FAILURE;
  }
  if (!aElement->GetComposedDoc()) {
    return NS_ERROR_FAILURE;
  }
  nsAutoCString result;
  Servo_AnimationValue_Serialize(value, propertyID,
                                 presShell->StyleSet()->RawSet(), &result);
  CopyUTF8toUTF16(result, aResult);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetDisplayDPI(float* aDPI) {
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  *aDPI = widget->GetDPI();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::CheckAndClearPaintedState(Element* aElement, bool* aResult) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  nsIFrame* frame = aElement->GetPrimaryFrame();

  if (!frame) {
    *aResult = false;
    return NS_OK;
  }

  // Get the outermost frame for the content node, so that we can test
  // canvasframe invalidations by observing the documentElement.
  for (;;) {
    nsIFrame* parentFrame = frame->GetParent();
    if (parentFrame && parentFrame->GetContent() == aElement) {
      frame = parentFrame;
    } else {
      break;
    }
  }

  while (frame) {
    if (!frame->CheckAndClearPaintedState()) {
      *aResult = false;
      return NS_OK;
    }
    frame = nsLayoutUtils::GetNextContinuationOrIBSplitSibling(frame);
  }
  *aResult = true;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::CheckAndClearDisplayListState(Element* aElement,
                                                bool* aResult) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  nsIFrame* frame = aElement->GetPrimaryFrame();

  if (!frame) {
    *aResult = false;
    return NS_OK;
  }

  // Get the outermost frame for the content node, so that we can test
  // canvasframe invalidations by observing the documentElement.
  for (;;) {
    nsIFrame* parentFrame = frame->GetParent();
    if (parentFrame && parentFrame->GetContent() == aElement) {
      frame = parentFrame;
    } else {
      break;
    }
  }

  while (frame) {
    if (!frame->CheckAndClearDisplayListState()) {
      *aResult = false;
      return NS_OK;
    }
    frame = nsLayoutUtils::GetNextContinuationOrIBSplitSibling(frame);
  }
  *aResult = true;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsPartOfOpaqueLayer(Element* aElement, bool* aResult) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  nsIFrame* frame = aElement->GetPrimaryFrame();
  if (!frame) {
    return NS_ERROR_FAILURE;
  }

  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::NumberOfAssignedPaintedLayers(
    const nsTArray<RefPtr<Element>>& aElements, uint32_t* aResult) {
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::EnableDialogs() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsGlobalWindowOuter::Cast(window)->EnableDialogs();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::DisableDialogs() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsGlobalWindowOuter::Cast(window)->DisableDialogs();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::AreDialogsEnabled(bool* aResult) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  *aResult = nsGlobalWindowOuter::Cast(window)->AreDialogsEnabled();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ResetDialogAbuseState() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsGlobalWindowOuter::Cast(window)
      ->GetBrowsingContextGroup()
      ->ResetDialogAbuseState();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFileId(JS::Handle<JS::Value> aFile, JSContext* aCx,
                            int64_t* _retval) {
  if (aFile.isPrimitive()) {
    *_retval = -1;
    return NS_OK;
  }

  JS::Rooted<JSObject*> obj(aCx, aFile.toObjectOrNull());

  IDBMutableFile* mutableFile = nullptr;
  if (NS_SUCCEEDED(UNWRAP_OBJECT(IDBMutableFile, &obj, mutableFile))) {
    *_retval = mutableFile->GetFileId();
    return NS_OK;
  }

  Blob* blob = nullptr;
  if (NS_SUCCEEDED(UNWRAP_OBJECT(Blob, &obj, blob))) {
    *_retval = blob->GetFileId();
    return NS_OK;
  }

  *_retval = -1;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFilePath(JS::Handle<JS::Value> aFile, JSContext* aCx,
                              nsAString& _retval) {
  if (aFile.isPrimitive()) {
    _retval.Truncate();
    return NS_OK;
  }

  JS::Rooted<JSObject*> obj(aCx, aFile.toObjectOrNull());

  File* file = nullptr;
  if (NS_SUCCEEDED(UNWRAP_OBJECT(File, &obj, file))) {
    nsString filePath;
    ErrorResult rv;
    file->GetMozFullPathInternal(filePath, rv);
    if (NS_WARN_IF(rv.Failed())) {
      return rv.StealNSResult();
    }

    _retval = filePath;
    return NS_OK;
  }

  _retval.Truncate();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFileReferences(const nsAString& aDatabaseName, int64_t aId,
                                    int32_t* aRefCnt, int32_t* aDBRefCnt,
                                    bool* aResult) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsCString origin;
  MOZ_TRY_VAR(origin, quota::QuotaManager::GetOriginFromWindow(window));

  RefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();

  if (mgr) {
    nsresult rv = mgr->BlockAndGetFileReferences(
        quota::PERSISTENCE_TYPE_DEFAULT, origin, aDatabaseName, aId, aRefCnt,
        aDBRefCnt, aResult);
    NS_ENSURE_SUCCESS(rv, rv);
  } else {
    *aRefCnt = *aDBRefCnt = -1;
    *aResult = false;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::FlushPendingFileDeletions() {
  RefPtr<IndexedDatabaseManager> mgr = IndexedDatabaseManager::Get();
  if (mgr) {
    nsresult rv = mgr->FlushPendingFileDeletions();
    if (NS_WARN_IF(NS_FAILED(rv))) {
      return rv;
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::StartPCCountProfiling(JSContext* cx) {
  JS::StartPCCountProfiling(cx);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::StopPCCountProfiling(JSContext* cx) {
  JS::StopPCCountProfiling(cx);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::PurgePCCounts(JSContext* cx) {
  JS::PurgePCCounts(cx);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptCount(JSContext* cx, int32_t* result) {
  *result = JS::GetPCCountScriptCount(cx);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptSummary(int32_t script, JSContext* cx,
                                          nsAString& result) {
  JSString* text = JS::GetPCCountScriptSummary(cx, script);
  if (!text) return NS_ERROR_FAILURE;

  if (!AssignJSString(cx, result, text)) return NS_ERROR_FAILURE;

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPCCountScriptContents(int32_t script, JSContext* cx,
                                           nsAString& result) {
  JSString* text = JS::GetPCCountScriptContents(cx, script);
  if (!text) return NS_ERROR_FAILURE;

  if (!AssignJSString(cx, result, text)) return NS_ERROR_FAILURE;

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPaintingSuppressed(bool* aPaintingSuppressed) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
  nsIDocShell* docShell = window->GetDocShell();
  NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);

  PresShell* presShell = docShell->GetPresShell();
  NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);

  *aPaintingSuppressed = presShell->IsPaintingSuppressed();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetVisualViewportSize(float aWidth, float aHeight) {
  if (!(aWidth >= 0.0 && aHeight >= 0.0)) {
    return NS_ERROR_ILLEGAL_VALUE;
  }

  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  presShell->SetVisualViewportSize(nsPresContext::CSSPixelsToAppUnits(aWidth),
                                   nsPresContext::CSSPixelsToAppUnits(aHeight));

  return NS_OK;
}

nsresult nsDOMWindowUtils::RemoteFrameFullscreenChanged(
    Element* aFrameElement) {
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  doc->RemoteFrameFullscreenChanged(aFrameElement);
  return NS_OK;
}

nsresult nsDOMWindowUtils::RemoteFrameFullscreenReverted() {
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  doc->RemoteFrameFullscreenReverted();
  return NS_OK;
}

static void PrepareForFullscreenChange(nsIDocShell* aDocShell,
                                       const nsSize& aSize,
                                       nsSize* aOldSize = nullptr) {
  if (!aDocShell) {
    return;
  }
  PresShell* presShell = aDocShell->GetPresShell();
  if (!presShell) {
    return;
  }
  if (nsRefreshDriver* rd = presShell->GetRefreshDriver()) {
    rd->SetIsResizeSuppressed();
    // Since we are suppressing the resize reflow which would originally
    // be triggered by view manager, we need to ensure that the refresh
    // driver actually schedules a flush, otherwise it may get stuck.
    rd->ScheduleViewManagerFlush();
  }
  if (!aSize.IsEmpty()) {
    nsCOMPtr<nsIContentViewer> cv;
    aDocShell->GetContentViewer(getter_AddRefs(cv));
    if (cv) {
      nsIntRect cvBounds;
      cv->GetBounds(cvBounds);
      nscoord auPerDev = presShell->GetPresContext()->AppUnitsPerDevPixel();
      if (aOldSize) {
        *aOldSize = LayoutDeviceIntSize::ToAppUnits(
            LayoutDeviceIntSize::FromUnknownSize(cvBounds.Size()), auPerDev);
      }
      LayoutDeviceIntSize newSize =
          LayoutDeviceIntSize::FromAppUnitsRounded(aSize, auPerDev);

      cvBounds.SizeTo(newSize.width, newSize.height);
      cv->SetBounds(cvBounds);
    }
  }
}

NS_IMETHODIMP
nsDOMWindowUtils::HandleFullscreenRequests(bool* aRetVal) {
  PROFILER_MARKER_UNTYPED("Enter fullscreen", DOM);
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  // Notify the pres shell that we are starting fullscreen change, and
  // set the window dimensions in advance. Since the resize message
  // comes after the fullscreen change call, doing so could avoid an
  // extra resize reflow after this point.
  nsRect screenRect;
  if (nsPresContext* presContext = GetPresContext()) {
    presContext->DeviceContext()->GetRect(screenRect);
  }
  nsSize oldSize;
  PrepareForFullscreenChange(GetDocShell(), screenRect.Size(), &oldSize);
  OldWindowSize::Set(mWindow, oldSize);

  *aRetVal = Document::HandlePendingFullscreenRequests(doc);
  return NS_OK;
}

nsresult nsDOMWindowUtils::ExitFullscreen(bool aDontRestoreViewSize) {
  PROFILER_MARKER_UNTYPED("Exit fullscreen", DOM);
  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_STATE(doc);

  // Although we would not use the old size if we have already exited
  // fullscreen, we still want to cleanup in case we haven't.
  nsSize oldSize = OldWindowSize::GetAndRemove(mWindow);
  if (!doc->GetFullscreenElement()) {
    return NS_OK;
  }

  // Notify the pres shell that we are starting fullscreen change, and
  // set the window dimensions in advance. Since the resize message
  // comes after the fullscreen change call, doing so could avoid an
  // extra resize reflow after this point.
  PrepareForFullscreenChange(GetDocShell(),
                             aDontRestoreViewSize ? nsSize() : oldSize);
  Document::ExitFullscreenInDocTree(doc);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SelectAtPoint(float aX, float aY, uint32_t aSelectBehavior,
                                bool* _retval) {
  *_retval = false;

  nsSelectionAmount amount;
  switch (aSelectBehavior) {
    case nsIDOMWindowUtils::SELECT_CHARACTER:
      amount = eSelectCharacter;
      break;
    case nsIDOMWindowUtils::SELECT_CLUSTER:
      amount = eSelectCluster;
      break;
    case nsIDOMWindowUtils::SELECT_WORD:
      amount = eSelectWord;
      break;
    case nsIDOMWindowUtils::SELECT_LINE:
      amount = eSelectLine;
      break;
    case nsIDOMWindowUtils::SELECT_BEGINLINE:
      amount = eSelectBeginLine;
      break;
    case nsIDOMWindowUtils::SELECT_ENDLINE:
      amount = eSelectEndLine;
      break;
    case nsIDOMWindowUtils::SELECT_PARAGRAPH:
      amount = eSelectParagraph;
      break;
    case nsIDOMWindowUtils::SELECT_WORDNOSPACE:
      amount = eSelectWordNoSpace;
      break;
    default:
      return NS_ERROR_INVALID_ARG;
  }

  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_UNEXPECTED;
  }

  // The root frame for this content window
  nsIFrame* rootFrame = presShell->GetRootFrame();
  if (!rootFrame) {
    return NS_ERROR_UNEXPECTED;
  }

  // Get the target frame at the client coordinates passed to us
  nsPoint offset;
  nsCOMPtr<nsIWidget> widget = GetWidget(&offset);
  LayoutDeviceIntPoint pt =
      nsContentUtils::ToWidgetPoint(CSSPoint(aX, aY), offset, GetPresContext());
  nsPoint ptInRoot = nsLayoutUtils::GetEventCoordinatesRelativeTo(
      widget, pt, RelativeTo{rootFrame});
  nsIFrame* targetFrame =
      nsLayoutUtils::GetFrameForPoint(RelativeTo{rootFrame}, ptInRoot);
  // This can happen if the page hasn't loaded yet or if the point
  // is outside the frame.
  if (!targetFrame) {
    return NS_ERROR_INVALID_ARG;
  }

  // Convert point to coordinates relative to the target frame, which is
  // what targetFrame's SelectByTypeAtPoint expects.
  nsPoint relPoint = nsLayoutUtils::GetEventCoordinatesRelativeTo(
      widget, pt, RelativeTo{targetFrame});

  const RefPtr<nsPresContext> pinnedPresContext{GetPresContext()};
  nsresult rv = targetFrame->SelectByTypeAtPoint(
      pinnedPresContext, relPoint, amount, amount, nsIFrame::SELECT_ACCUMULATE);
  *_retval = !NS_FAILED(rv);
  return NS_OK;
}

static Document::additionalSheetType convertSheetType(uint32_t aSheetType) {
  switch (aSheetType) {
    case nsDOMWindowUtils::AGENT_SHEET:
      return Document::eAgentSheet;
    case nsDOMWindowUtils::USER_SHEET:
      return Document::eUserSheet;
    case nsDOMWindowUtils::AUTHOR_SHEET:
      return Document::eAuthorSheet;
    default:
      NS_ASSERTION(false, "wrong type");
      // we must return something although this should never happen
      return Document::AdditionalSheetTypeCount;
  }
}

NS_IMETHODIMP
nsDOMWindowUtils::LoadSheet(nsIURI* aSheetURI, uint32_t aSheetType) {
  NS_ENSURE_ARG_POINTER(aSheetURI);
  NS_ENSURE_ARG(aSheetType == AGENT_SHEET || aSheetType == USER_SHEET ||
                aSheetType == AUTHOR_SHEET);

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);

  Document::additionalSheetType type = convertSheetType(aSheetType);

  return doc->LoadAdditionalStyleSheet(type, aSheetURI);
}

NS_IMETHODIMP
nsDOMWindowUtils::LoadSheetUsingURIString(const nsACString& aSheetURI,
                                          uint32_t aSheetType) {
  nsCOMPtr<nsIURI> uri;
  nsresult rv = NS_NewURI(getter_AddRefs(uri), aSheetURI);
  NS_ENSURE_SUCCESS(rv, rv);

  return LoadSheet(uri, aSheetType);
}

NS_IMETHODIMP
nsDOMWindowUtils::AddSheet(nsIPreloadedStyleSheet* aSheet,
                           uint32_t aSheetType) {
  NS_ENSURE_ARG_POINTER(aSheet);
  NS_ENSURE_ARG(aSheetType == AGENT_SHEET || aSheetType == USER_SHEET ||
                aSheetType == AUTHOR_SHEET);

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);

  StyleSheet* sheet = nullptr;
  auto* preloadedSheet = static_cast<PreloadedStyleSheet*>(aSheet);
  nsresult rv = preloadedSheet->GetSheet(&sheet);
  NS_ENSURE_SUCCESS(rv, rv);
  NS_ENSURE_TRUE(sheet, NS_ERROR_FAILURE);

  if (sheet->GetAssociatedDocumentOrShadowRoot()) {
    return NS_ERROR_INVALID_ARG;
  }

  Document::additionalSheetType type = convertSheetType(aSheetType);
  return doc->AddAdditionalStyleSheet(type, sheet);
}

NS_IMETHODIMP
nsDOMWindowUtils::RemoveSheet(nsIURI* aSheetURI, uint32_t aSheetType) {
  NS_ENSURE_ARG_POINTER(aSheetURI);
  NS_ENSURE_ARG(aSheetType == AGENT_SHEET || aSheetType == USER_SHEET ||
                aSheetType == AUTHOR_SHEET);

  nsCOMPtr<Document> doc = GetDocument();
  NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);

  Document::additionalSheetType type = convertSheetType(aSheetType);

  doc->RemoveAdditionalStyleSheet(type, aSheetURI);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::RemoveSheetUsingURIString(const nsACString& aSheetURI,
                                            uint32_t aSheetType) {
  nsCOMPtr<nsIURI> uri;
  nsresult rv = NS_NewURI(getter_AddRefs(uri), aSheetURI);
  NS_ENSURE_SUCCESS(rv, rv);

  return RemoveSheet(uri, aSheetType);
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsHandlingUserInput(bool* aHandlingUserInput) {
  *aHandlingUserInput = UserActivation::IsHandlingUserInput();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetMillisSinceLastUserInput(
    double* aMillisSinceLastUserInput) {
  TimeStamp lastInput = UserActivation::LatestUserInputStart();
  if (lastInput.IsNull()) {
    *aMillisSinceLastUserInput = -1.0f;
    return NS_OK;
  }

  *aMillisSinceLastUserInput = (TimeStamp::Now() - lastInput).ToMilliseconds();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::AllowScriptsToClose() {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);
  nsGlobalWindowOuter::Cast(window)->AllowScriptsToClose();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetIsParentWindowMainWidgetVisible(bool* aIsVisible) {
  if (!XRE_IsParentProcess()) {
    MOZ_CRASH(
        "IsParentWindowMainWidgetVisible is only available in the parent "
        "process");
  }

  // this should reflect the "is parent window visible" logic in
  // nsWindowWatcher::OpenWindowInternal()
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(window);

  nsCOMPtr<nsIWidget> parentWidget;
  nsIDocShell* docShell = window->GetDocShell();
  if (docShell) {
    nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
    docShell->GetTreeOwner(getter_AddRefs(parentTreeOwner));
    nsCOMPtr<nsIBaseWindow> parentWindow(do_GetInterface(parentTreeOwner));
    if (parentWindow) {
      parentWindow->GetMainWidget(getter_AddRefs(parentWidget));
    }
  }
  if (!parentWidget) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  *aIsVisible = parentWidget->IsVisible();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsNodeDisabledForEvents(nsINode* aNode, bool* aRetVal) {
  *aRetVal = false;
  nsINode* node = aNode;
  while (node) {
    if (node->IsNodeOfType(nsINode::eHTML_FORM_CONTROL)) {
      nsGenericHTMLElement* element = nsGenericHTMLElement::FromNode(node);
      WidgetEvent event(true, eVoidEvent);
      if (element && element->IsDisabledForEvents(&event)) {
        *aRetVal = true;
        break;
      }
    }
    node = node->GetParentNode();
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::DispatchEventToChromeOnly(EventTarget* aTarget, Event* aEvent,
                                            bool* aRetVal) {
  *aRetVal = false;
  NS_ENSURE_STATE(aTarget && aEvent);
  aEvent->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
  *aRetVal =
      aTarget->DispatchEvent(*aEvent, CallerType::System, IgnoreErrors());
  return NS_OK;
}

static Result<nsIFrame*, nsresult> GetTargetFrame(
    const Element* aElement, const nsAString& aPseudoElement) {
  nsIFrame* frame = aElement->GetPrimaryFrame();
  if (!aPseudoElement.IsEmpty()) {
    if (aPseudoElement.EqualsLiteral("::before")) {
      frame = nsLayoutUtils::GetBeforeFrame(aElement);
    } else if (aPseudoElement.EqualsLiteral("::after")) {
      frame = nsLayoutUtils::GetAfterFrame(aElement);
    } else {
      return Err(NS_ERROR_INVALID_ARG);
    }
  }
  return frame;
}

static OMTAValue GetOMTAValue(nsIFrame* aFrame, DisplayItemType aDisplayItemKey,
                              WebRenderBridgeChild* aWebRenderBridgeChild) {
  OMTAValue value = mozilla::null_t();

  if (aWebRenderBridgeChild) {
    RefPtr<WebRenderAnimationData> animationData =
        GetWebRenderUserData<WebRenderAnimationData>(aFrame,
                                                     (uint32_t)aDisplayItemKey);
    if (animationData) {
      aWebRenderBridgeChild->SendGetAnimationValue(
          animationData->GetAnimationInfo().GetCompositorAnimationsId(),
          &value);
    }
  }
  return value;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetOMTAStyle(Element* aElement, const nsAString& aProperty,
                               const nsAString& aPseudoElement,
                               nsAString& aResult) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  auto frameOrError = GetTargetFrame(aElement, aPseudoElement);
  if (frameOrError.isErr()) {
    return frameOrError.unwrapErr();
  }
  nsIFrame* frame = frameOrError.unwrap();

  RefPtr<nsROCSSPrimitiveValue> cssValue = nullptr;
  if (frame && nsLayoutUtils::AreAsyncAnimationsEnabled()) {
    if (aProperty.EqualsLiteral("opacity")) {
      OMTAValue value = GetOMTAValue(frame, DisplayItemType::TYPE_OPACITY,
                                     GetWebRenderBridge());
      if (value.type() == OMTAValue::Tfloat) {
        cssValue = new nsROCSSPrimitiveValue;
        cssValue->SetNumber(value.get_float());
      }
    } else if (aProperty.EqualsLiteral("transform") ||
               aProperty.EqualsLiteral("translate") ||
               aProperty.EqualsLiteral("rotate") ||
               aProperty.EqualsLiteral("scale") ||
               aProperty.EqualsLiteral("offset-path") ||
               aProperty.EqualsLiteral("offset-distance") ||
               aProperty.EqualsLiteral("offset-rotate") ||
               aProperty.EqualsLiteral("offset-anchor")) {
      OMTAValue value = GetOMTAValue(frame, DisplayItemType::TYPE_TRANSFORM,
                                     GetWebRenderBridge());
      if (value.type() == OMTAValue::TMatrix4x4) {
        cssValue = nsComputedDOMStyle::MatrixToCSSValue(value.get_Matrix4x4());
      }
    } else if (aProperty.EqualsLiteral("background-color")) {
      OMTAValue value = GetOMTAValue(
          frame, DisplayItemType::TYPE_BACKGROUND_COLOR, GetWebRenderBridge());
      if (value.type() == OMTAValue::Tnscolor) {
        nsStyleUtil::GetSerializedColorValue(value.get_nscolor(), aResult);
        return NS_OK;
      }
    }
  }

  if (cssValue) {
    nsString text;
    ErrorResult rv;
    cssValue->GetCssText(text, rv);
    aResult.Assign(text);
    return rv.StealNSResult();
  }
  aResult.Truncate();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsAnimationInPendingTracker(dom::Animation* aAnimation,
                                              bool* aRetVal) {
  MOZ_ASSERT(aRetVal);

  if (!aAnimation) {
    return NS_ERROR_INVALID_ARG;
  }

  Document* doc = GetDocument();
  if (!doc) {
    *aRetVal = false;
    return NS_OK;
  }

  PendingAnimationTracker* tracker = doc->GetPendingAnimationTracker();
  if (!tracker) {
    *aRetVal = false;
    return NS_OK;
  }

  *aRetVal = tracker->IsWaitingToPlay(*aAnimation) ||
             tracker->IsWaitingToPause(*aAnimation);
  return NS_OK;
}

namespace {

class HandlingUserInputHelper final : public nsIJSRAIIHelper {
 public:
  explicit HandlingUserInputHelper(bool aHandlingUserInput);

  NS_DECL_ISUPPORTS
  NS_DECL_NSIJSRAIIHELPER

 private:
  ~HandlingUserInputHelper();

  bool mHandlingUserInput;
  bool mDestructCalled = false;
};

NS_IMPL_ISUPPORTS(HandlingUserInputHelper, nsIJSRAIIHelper)

HandlingUserInputHelper::HandlingUserInputHelper(bool aHandlingUserInput)
    : mHandlingUserInput(aHandlingUserInput) {
  if (aHandlingUserInput) {
    UserActivation::StartHandlingUserInput(eVoidEvent);
  }
}

HandlingUserInputHelper::~HandlingUserInputHelper() {
  // We assert, but just in case, make sure we notify the ESM.
  MOZ_ASSERT(mDestructCalled);
  if (!mDestructCalled) {
    Destruct();
  }
}

NS_IMETHODIMP
HandlingUserInputHelper::Destruct() {
  if (NS_WARN_IF(mDestructCalled)) {
    return NS_ERROR_FAILURE;
  }

  mDestructCalled = true;
  if (mHandlingUserInput) {
    UserActivation::StopHandlingUserInput(eVoidEvent);
  }

  return NS_OK;
}

}  // unnamed namespace

NS_IMETHODIMP
nsDOMWindowUtils::SetHandlingUserInput(bool aHandlingUserInput,
                                       nsIJSRAIIHelper** aHelper) {
  if (aHandlingUserInput) {
    if (Document* doc = GetDocument()) {
      doc->NotifyUserGestureActivation();
    }
  }
  auto helper = MakeRefPtr<HandlingUserInputHelper>(aHandlingUserInput);
  helper.forget(aHelper);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsKeyboardEventUserActivity(Event* aEvent, bool* aResult) {
  NS_ENSURE_STATE(aEvent);
  if (!aEvent->AsKeyboardEvent()) {
    return NS_ERROR_INVALID_ARG;
  }

  WidgetEvent* internalEvent = aEvent->WidgetEventPtr();
  NS_ENSURE_STATE(internalEvent);
  *aResult = EventStateManager::IsKeyboardEventUserActivity(internalEvent);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetContentAPZTestData(
    JSContext* aContext, JS::MutableHandle<JS::Value> aOutContentTestData) {
  if (nsIWidget* widget = GetWidget()) {
    WindowRenderer* renderer = widget->GetWindowRenderer();
    if (!renderer) {
      return NS_OK;
    }
    if (WebRenderLayerManager* wr = renderer->AsWebRender()) {
      if (!wr->GetAPZTestData().ToJS(aOutContentTestData, aContext)) {
        return NS_ERROR_FAILURE;
      }
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetCompositorAPZTestData(
    JSContext* aContext, JS::MutableHandle<JS::Value> aOutCompositorTestData) {
  if (nsIWidget* widget = GetWidget()) {
    WindowRenderer* renderer = widget->GetWindowRenderer();
    if (!renderer) {
      return NS_OK;
    }
    APZTestData compositorSideData;
    if (WebRenderLayerManager* wr = renderer->AsWebRender()) {
      if (!wr->WrBridge()) {
        return NS_ERROR_UNEXPECTED;
      }
      if (!wr->WrBridge()->SendGetAPZTestData(&compositorSideData)) {
        return NS_ERROR_FAILURE;
      }
    }
    if (!compositorSideData.ToJS(aOutCompositorTestData, aContext)) {
      return NS_ERROR_FAILURE;
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::PostRestyleSelfEvent(Element* aElement) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  nsLayoutUtils::PostRestyleEvent(aElement, RestyleHint::RESTYLE_SELF,
                                  nsChangeHint(0));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetChromeMargin(int32_t aTop, int32_t aRight, int32_t aBottom,
                                  int32_t aLeft) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (window) {
    nsCOMPtr<nsIBaseWindow> baseWindow =
        do_QueryInterface(window->GetDocShell());
    if (baseWindow) {
      nsCOMPtr<nsIWidget> widget;
      baseWindow->GetMainWidget(getter_AddRefs(widget));
      if (widget) {
        LayoutDeviceIntMargin margins(aTop, aRight, aBottom, aLeft);
        return widget->SetNonClientMargins(margins);
      }
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetResizeMargin(int32_t aResizeMargin) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  if (window) {
    nsCOMPtr<nsIBaseWindow> baseWindow =
        do_QueryInterface(window->GetDocShell());
    if (baseWindow) {
      nsCOMPtr<nsIWidget> widget;
      baseWindow->GetMainWidget(getter_AddRefs(widget));
      if (widget) {
        CSSToLayoutDeviceScale scaleFactor = widget->GetDefaultScale();
        widget->SetResizeMargin(
            (CSSCoord(float(aResizeMargin)) * scaleFactor).Rounded());
      }
    }
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFrameUniformityTestData(
    JSContext* aContext, JS::MutableHandle<JS::Value> aOutFrameUniformity) {
  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  WindowRenderer* renderer = widget->GetWindowRenderer();
  if (!renderer) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  FrameUniformityData outData;
  renderer->GetFrameUniformity(&outData);
  outData.ToJS(aOutFrameUniformity, aContext);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::XpconnectArgument(nsISupports* aObj) {
  // Do nothing.
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::AskPermission(nsIContentPermissionRequest* aRequest) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  return nsContentPermissionUtils::AskPermission(
      aRequest, window->GetCurrentInnerWindow());
}

NS_IMETHODIMP
nsDOMWindowUtils::GetRestyleGeneration(uint64_t* aResult) {
  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  *aResult = presContext->GetRestyleGeneration();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFramesConstructed(uint64_t* aResult) {
  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  *aResult = presContext->FramesConstructedCount();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetFramesReflowed(uint64_t* aResult) {
  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  *aResult = presContext->FramesReflowedCount();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetRefreshDriverHasPendingTick(bool* aResult) {
  nsPresContext* presContext = GetPresContext();
  if (!presContext) {
    return NS_ERROR_NOT_AVAILABLE;
  }

  *aResult = presContext->RefreshDriver()->HasPendingTick();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::EnterChaosMode() {
  ChaosMode::enterChaosMode();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::LeaveChaosMode() {
  ChaosMode::leaveChaosMode();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::TriggerDeviceReset() {
  ContentChild* cc = ContentChild::GetSingleton();
  if (cc) {
    cc->SendDeviceReset();
    return NS_OK;
  }

  GPUProcessManager* pm = GPUProcessManager::Get();
  if (pm) {
    pm->SimulateDeviceReset();
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::HasRuleProcessorUsedByMultipleStyleSets(uint32_t aSheetType,
                                                          bool* aRetVal) {
  PresShell* presShell = GetPresShell();
  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  return presShell->HasRuleProcessorUsedByMultipleStyleSets(aSheetType,
                                                            aRetVal);
}

NS_IMETHODIMP
nsDOMWindowUtils::RespectDisplayPortSuppression(bool aEnabled) {
  RefPtr<PresShell> presShell = GetPresShell();
  presShell->RespectDisplayportSuppression(aEnabled);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ForceReflowInterrupt() {
  nsPresContext* pc = GetPresContext();
  if (!pc) {
    return NS_ERROR_NOT_AVAILABLE;
  }
  pc->SetPendingInterruptFromTest();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::TerminateGPUProcess() {
  GPUProcessManager* pm = GPUProcessManager::Get();
  if (pm) {
    pm->KillProcess();
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetGpuProcessPid(int32_t* aPid) {
  GPUProcessManager* pm = GPUProcessManager::Get();
  if (pm) {
    *aPid = pm->GPUProcessPid();
  } else {
    *aPid = -1;
  }

  return NS_OK;
}

struct StateTableEntry {
  const char* mStateString;
  ElementState mState;
};

static constexpr StateTableEntry kManuallyManagedStates[] = {
    {"autofill", ElementState::AUTOFILL},
    // :-moz-autofill-preview implies :autofill.
    {"-moz-autofill-preview",
     ElementState::AUTOFILL_PREVIEW | ElementState::AUTOFILL},
    {nullptr, ElementState()},
};

static_assert(!kManuallyManagedStates[ArrayLength(kManuallyManagedStates) - 1]
                   .mStateString,
              "last kManuallyManagedStates entry must be a sentinel with "
              "mStateString == nullptr");

static ElementState GetEventStateForString(const nsAString& aStateString) {
  for (const StateTableEntry* entry = kManuallyManagedStates;
       entry->mStateString; ++entry) {
    if (aStateString.EqualsASCII(entry->mStateString)) {
      return entry->mState;
    }
  }
  return ElementState();
}

NS_IMETHODIMP
nsDOMWindowUtils::AddManuallyManagedState(Element* aElement,
                                          const nsAString& aStateString) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  ElementState state = GetEventStateForString(aStateString);
  if (state.IsEmpty()) {
    return NS_ERROR_INVALID_ARG;
  }

  aElement->AddManuallyManagedStates(state);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::RemoveManuallyManagedState(Element* aElement,
                                             const nsAString& aStateString) {
  if (!aElement) {
    return NS_ERROR_INVALID_ARG;
  }

  ElementState state = GetEventStateForString(aStateString);
  if (state.IsEmpty()) {
    return NS_ERROR_INVALID_ARG;
  }

  aElement->RemoveManuallyManagedStates(state);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetStorageUsage(Storage* aStorage, int64_t* aRetval) {
  if (!aStorage) {
    return NS_ERROR_UNEXPECTED;
  }

  *aRetval = aStorage->GetOriginQuotaUsage();

  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetDirectionFromText(const nsAString& aString,
                                       int32_t* aRetval) {
  Directionality dir =
      ::GetDirectionFromText(aString.BeginReading(), aString.Length(), nullptr);
  switch (dir) {
    case eDir_NotSet:
      *aRetval = nsIDOMWindowUtils::DIRECTION_NOT_SET;
      break;
    case eDir_RTL:
      *aRetval = nsIDOMWindowUtils::DIRECTION_RTL;
      break;
    case eDir_LTR:
      *aRetval = nsIDOMWindowUtils::DIRECTION_LTR;
      break;
    case eDir_Auto:
      MOZ_ASSERT_UNREACHABLE(
          "GetDirectionFromText should never return this value");
      return NS_ERROR_FAILURE;
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::EnsureDirtyRootFrame() {
  Document* doc = GetDocument();
  PresShell* presShell = doc ? doc->GetPresShell() : nullptr;

  if (!presShell) {
    return NS_ERROR_FAILURE;
  }

  nsIFrame* frame = presShell->GetRootFrame();
  if (!frame) {
    return NS_ERROR_FAILURE;
  }

  presShell->FrameNeedsReflow(
      frame, IntrinsicDirty::FrameAncestorsAndDescendants, NS_FRAME_IS_DIRTY);
  return NS_OK;
}

NS_INTERFACE_MAP_BEGIN(nsTranslationNodeList)
  NS_INTERFACE_MAP_ENTRY(nsISupports)
  NS_INTERFACE_MAP_ENTRY(nsITranslationNodeList)
NS_INTERFACE_MAP_END

NS_IMPL_ADDREF(nsTranslationNodeList)
NS_IMPL_RELEASE(nsTranslationNodeList)

NS_IMETHODIMP
nsTranslationNodeList::Item(uint32_t aIndex, nsINode** aRetVal) {
  NS_ENSURE_ARG_POINTER(aRetVal);
  NS_IF_ADDREF(*aRetVal = mNodes.SafeElementAt(aIndex));
  return NS_OK;
}

NS_IMETHODIMP
nsTranslationNodeList::IsTranslationRootAtIndex(uint32_t aIndex,
                                                bool* aRetVal) {
  NS_ENSURE_ARG_POINTER(aRetVal);
  if (aIndex >= mLength) {
    *aRetVal = false;
    return NS_OK;
  }

  *aRetVal = mNodeIsRoot.ElementAt(aIndex);
  return NS_OK;
}

NS_IMETHODIMP
nsTranslationNodeList::GetLength(uint32_t* aRetVal) {
  NS_ENSURE_ARG_POINTER(aRetVal);
  *aRetVal = mLength;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::WrCapture() {
  if (WebRenderBridgeChild* wrbc = GetWebRenderBridge()) {
    wrbc->Capture();
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::WrStartCaptureSequence(const nsACString& aPath,
                                         uint32_t aFlags) {
  if (WebRenderBridgeChild* wrbc = GetWebRenderBridge()) {
    wrbc->StartCaptureSequence(nsCString(aPath), aFlags);
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::WrStopCaptureSequence() {
  if (WebRenderBridgeChild* wrbc = GetWebRenderBridge()) {
    wrbc->StopCaptureSequence();
  }
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetCompositionRecording(bool aValue, Promise** aOutPromise) {
  return aValue ? StartCompositionRecording(aOutPromise)
                : StopCompositionRecording(true, aOutPromise);
}

NS_IMETHODIMP
nsDOMWindowUtils::StartCompositionRecording(Promise** aOutPromise) {
  NS_ENSURE_ARG(aOutPromise);
  *aOutPromise = nullptr;

  nsCOMPtr<nsPIDOMWindowOuter> outer = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(outer);
  nsCOMPtr<nsPIDOMWindowInner> inner = outer->GetCurrentInnerWindow();
  NS_ENSURE_STATE(inner);

  ErrorResult err;
  RefPtr<Promise> promise = Promise::Create(inner->AsGlobal(), err);
  if (NS_WARN_IF(err.Failed())) {
    return err.StealNSResult();
  }

  CompositorBridgeChild* cbc = GetCompositorBridge();
  if (NS_WARN_IF(!cbc)) {
    promise->MaybeReject(NS_ERROR_UNEXPECTED);
  } else {
    cbc->SendBeginRecording(TimeStamp::Now())
        ->Then(
            GetCurrentSerialEventTarget(), __func__,
            [promise](const bool& aSuccess) {
              if (aSuccess) {
                promise->MaybeResolve(true);
              } else {
                promise->MaybeRejectWithInvalidStateError(
                    "The composition recorder is already running.");
              }
            },
            [promise](const mozilla::ipc::ResponseRejectReason&) {
              promise->MaybeRejectWithInvalidStateError(
                  "Could not start the composition recorder.");
            });
  }

  promise.forget(aOutPromise);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::StopCompositionRecording(bool aWriteToDisk,
                                           Promise** aOutPromise) {
  NS_ENSURE_ARG_POINTER(aOutPromise);
  *aOutPromise = nullptr;

  nsCOMPtr<nsPIDOMWindowOuter> outer = do_QueryReferent(mWindow);
  NS_ENSURE_STATE(outer);
  nsCOMPtr<nsPIDOMWindowInner> inner = outer->GetCurrentInnerWindow();
  NS_ENSURE_STATE(inner);

  ErrorResult err;
  RefPtr<Promise> promise = Promise::Create(inner->AsGlobal(), err);
  if (NS_WARN_IF(err.Failed())) {
    return err.StealNSResult();
  }

  CompositorBridgeChild* cbc = GetCompositorBridge();
  if (NS_WARN_IF(!cbc)) {
    promise->MaybeReject(NS_ERROR_UNEXPECTED);
  } else if (aWriteToDisk) {
    cbc->SendEndRecordingToDisk()->Then(
        GetCurrentSerialEventTarget(), __func__,
        [promise](const bool& aSuccess) {
          if (aSuccess) {
            promise->MaybeResolveWithUndefined();
          } else {
            promise->MaybeRejectWithInvalidStateError(
                "The composition recorder is not running.");
          }
        },
        [promise](const mozilla::ipc::ResponseRejectReason&) {
          promise->MaybeRejectWithUnknownError(
              "Could not stop the composition recorder.");
        });
  } else {
    cbc->SendEndRecordingToMemory()->Then(
        GetCurrentSerialEventTarget(), __func__,
        [promise](Maybe<CollectedFramesParams>&& aFrames) {
          if (!aFrames) {
            promise->MaybeRejectWithUnknownError(
                "Could not stop the composition recorder.");
            return;
          }

          DOMCollectedFrames domFrames;
          if (!domFrames.mFrames.SetCapacity(aFrames->frames().Length(),
                                             fallible)) {
            promise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
            return;
          }

          domFrames.mRecordingStart = aFrames->recordingStart();

          CheckedInt<size_t> totalSize(0);
          for (const CollectedFrameParams& frame : aFrames->frames()) {
            totalSize += frame.length();
          }

          if (totalSize.isValid() &&
              totalSize.value() > aFrames->buffer().Size<char>()) {
            promise->MaybeRejectWithUnknownError(
                "Could not interpret returned frames.");
            return;
          }

          Span<const char> buffer(aFrames->buffer().get<char>(),
                                  aFrames->buffer().Size<char>());

          for (const CollectedFrameParams& frame : aFrames->frames()) {
            size_t length = frame.length();

            Span<const char> dataUri = buffer.First(length);

            // We have to do a fallible AppendElement() because WebIDL
            // dictionaries use FallibleTArray. However, this cannot fail due to
            // the pre-allocation earlier.
            DOMCollectedFrame* domFrame =
                domFrames.mFrames.AppendElement(fallible);
            MOZ_ASSERT(domFrame);

            domFrame->mTimeOffset = frame.timeOffset();
            domFrame->mDataUri = nsCString(dataUri);

            buffer = buffer.Subspan(length);
          }

          promise->MaybeResolve(domFrames);
        },
        [promise](const mozilla::ipc::ResponseRejectReason&) {
          promise->MaybeRejectWithUnknownError(
              "Could not stop the composition recorder.");
        });
  }

  promise.forget(aOutPromise);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetSystemFont(const nsACString& aFontName) {
  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_OK;
  }

  nsAutoCString fontName(aFontName);
  return widget->SetSystemFont(fontName);
}

NS_IMETHODIMP
nsDOMWindowUtils::GetSystemFont(nsACString& aFontName) {
  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_OK;
  }

  nsAutoCString fontName;
  widget->GetSystemFont(fontName);
  aFontName.Assign(fontName);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsCssPropertyRecordedInUseCounter(const nsACString& aPropName,
                                                    bool* aRecorded) {
  *aRecorded = false;

  Document* doc = GetDocument();
  if (!doc || !doc->GetStyleUseCounters()) {
    return NS_ERROR_FAILURE;
  }

  bool knownProp = false;
  *aRecorded = Servo_IsCssPropertyRecordedInUseCounter(
      doc->GetStyleUseCounters(), &aPropName, &knownProp);
  return knownProp ? NS_OK : NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::IsCoepCredentialless(bool* aResult) {
  Document* doc = GetDocument();
  if (!doc) {
    return NS_ERROR_FAILURE;
  }

  *aResult = net::IsCoepCredentiallessEnabled(
      doc->Trials().IsEnabled(OriginTrial::CoepCredentialless));
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetLayersId(uint64_t* aOutLayersId) {
  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }
  BrowserChild* child = widget->GetOwningBrowserChild();
  if (!child) {
    return NS_ERROR_FAILURE;
  }
  *aOutLayersId = (uint64_t)child->GetLayersId();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetPaintCount(uint64_t* aPaintCount) {
  auto* presShell = GetPresShell();
  *aPaintCount = presShell ? presShell->GetPaintCount() : 0;
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetWebrtcRawDeviceId(nsAString& aRawDeviceId) {
  if (!XRE_IsParentProcess()) {
    MOZ_CRASH(
        "GetWebrtcRawDeviceId is only available in the parent "
        "process");
  }

  nsIWidget* widget = GetWidget();
  if (!widget) {
    return NS_ERROR_FAILURE;
  }

  int64_t rawDeviceId =
      (int64_t)(widget->GetNativeData(NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID));
  if (!rawDeviceId) {
    return NS_ERROR_FAILURE;
  }

  aRawDeviceId.AppendInt(rawDeviceId);
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetEffectivelyThrottlesFrameRequests(bool* aResult) {
  Document* doc = GetDocument();
  if (!doc) {
    return NS_ERROR_FAILURE;
  }
  *aResult = !doc->WouldScheduleFrameRequestCallbacks() ||
             doc->ShouldThrottleFrameRequests();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::ResetMobileViewportManager() {
  if (RefPtr<PresShell> presShell = GetPresShell()) {
    if (auto mvm = presShell->GetMobileViewportManager()) {
      mvm->SetInitialViewport();
      return NS_OK;
    }
  }
  // Unable to reset, so let's error out
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetSuspendedByBrowsingContextGroup(bool* aResult) {
  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryReferent(mWindow);
  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

  nsCOMPtr<nsPIDOMWindowInner> inner = window->GetCurrentInnerWindow();
  NS_ENSURE_TRUE(inner, NS_ERROR_FAILURE);

  *aResult = inner->GetWasSuspendedByGroup();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetHasScrollLinkedEffect(bool* aResult) {
  Document* doc = GetDocument();
  if (!doc) {
    return NS_ERROR_FAILURE;
  }
  *aResult = doc->HasScrollLinkedEffect();
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::GetOrientationLock(uint32_t* aOrientationLock) {
  NS_WARNING("nsDOMWindowUtils::GetOrientationLock");

  nsIDocShell* docShell = GetDocShell();
  if (!docShell) {
    return NS_ERROR_FAILURE;
  }

  BrowsingContext* bc = docShell->GetBrowsingContext();
  bc = bc ? bc->Top() : nullptr;
  if (!bc) {
    return NS_ERROR_FAILURE;
  }

  *aOrientationLock = static_cast<uint32_t>(bc->GetOrientationLock());
  return NS_OK;
}

NS_IMETHODIMP
nsDOMWindowUtils::SetHiDPIMode(bool aHiDPI) {
#ifdef DEBUG
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  return widget->SetHiDPIMode(aHiDPI);
#else
  return NS_ERROR_NOT_AVAILABLE;
#endif
}

NS_IMETHODIMP
nsDOMWindowUtils::RestoreHiDPIMode() {
#ifdef DEBUG
  nsCOMPtr<nsIWidget> widget = GetWidget();
  if (!widget) return NS_ERROR_FAILURE;

  return widget->RestoreHiDPIMode();
#else
  return NS_ERROR_NOT_AVAILABLE;
#endif
}