nsGlobalWindowOuter.h

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

#ifndef nsGlobalWindowOuter_h___
#define nsGlobalWindowOuter_h___

#include "nsNodeInfoManager.h"
#include "nsPIDOMWindow.h"

#include "nsTHashtable.h"
#include "nsHashKeys.h"
#include "nsRefPtrHashtable.h"
#include "nsInterfaceHashtable.h"

// Local Includes
// Helper Classes
#include "nsCOMPtr.h"
#include "nsWeakReference.h"
#include "nsTHashMap.h"
#include "nsCycleCollectionParticipant.h"

// Interfaces Needed
#include "nsIBrowserDOMWindow.h"
#include "nsIInterfaceRequestor.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptObjectPrincipal.h"
#include "mozilla/EventListenerManager.h"
#include "nsIPrincipal.h"
#include "nsSize.h"
#include "mozilla/FlushType.h"
#include "prclist.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/ChromeMessageBroadcaster.h"
#include "mozilla/dom/PopupBlocker.h"
#include "mozilla/dom/StorageEvent.h"
#include "mozilla/dom/StorageEventBinding.h"
#include "mozilla/dom/UnionTypes.h"
#include "mozilla/Attributes.h"
#include "mozilla/LinkedList.h"
#include "nsWrapperCacheInlines.h"
#include "mozilla/dom/EventTarget.h"
#include "mozilla/dom/WindowBinding.h"
#include "Units.h"
#include "nsComponentManagerUtils.h"
#include "nsCheapSets.h"
#include "mozilla/dom/ImageBitmapSource.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/dom/BrowsingContext.h"
#include "X11UndefineNone.h"

class nsDocShell;
class nsIArray;
class nsIBaseWindow;
class nsIContent;
class nsICSSDeclaration;
class nsIDocShellTreeOwner;
class nsIDOMWindowUtils;
class nsIControllers;
class nsIPrintSettings;
class nsIScriptContext;
class nsIScriptTimeoutHandler;
class nsIBrowserChild;
class nsITimeoutHandler;
class nsIWebBrowserChrome;
class nsIWebProgressListener;
class mozIDOMWindowProxy;

class nsDocShellLoadState;
class nsScreen;
class nsHistory;
class nsGlobalWindowObserver;
class nsGlobalWindowInner;
class nsDOMWindowUtils;
struct nsRect;

class nsWindowSizes;

namespace mozilla {
class AbstractThread;
class DOMEventTargetHelper;
class ErrorResult;
template <typename V, typename E>
class Result;
class ThrottledEventQueue;
class ScrollContainerFrame;
namespace dom {
class BarProp;
struct ChannelPixelLayout;
class Console;
class Crypto;
class CustomElementRegistry;
class DocGroup;
class Document;
class External;
class Function;
class Gamepad;
enum class ImageBitmapFormat : uint8_t;
class IntlUtils;
class Location;
class MediaQueryList;
class Navigator;
class OwningExternalOrWindowProxy;
class Promise;
class PostMessageData;
class PostMessageEvent;
class PrintPreviewResultInfo;
struct RequestInit;
class Selection;
struct SizeToContentConstraints;
class SpeechSynthesis;
class Timeout;
class U2F;
class VRDisplay;
enum class VRDisplayEventReason : uint8_t;
class VREventObserver;
class WakeLock;
class Worklet;
namespace cache {
class CacheStorage;
}  // namespace cache
class IDBFactory;
}  // namespace dom
namespace layout {
class RemotePrintJobChild;
}  // namespace layout
}  // namespace mozilla

extern const JSClass OuterWindowProxyClass;

//*****************************************************************************
// nsGlobalWindowOuter
//*****************************************************************************

// nsGlobalWindowOuter inherits PRCList for maintaining a list of all inner
// windows still in memory for any given outer window. This list is needed to
// ensure that mOuterWindow doesn't end up dangling. The nature of PRCList means
// that the window itself is always in the list, and an outer window's list will
// also contain all inner window objects that are still in memory (and in
// reality all inner window object's lists also contain its outer and all other
// inner windows belonging to the same outer window, but that's an unimportant
// side effect of inheriting PRCList).

class nsGlobalWindowOuter final : public mozilla::dom::EventTarget,
                                  public nsPIDOMWindowOuter,
                                  private nsIDOMWindow,
                                  public nsIScriptGlobalObject,
                                  public nsIScriptObjectPrincipal,
                                  public nsSupportsWeakReference,
                                  public nsIInterfaceRequestor,
                                  public PRCListStr {
 public:
  using OuterWindowByIdTable =
      nsTHashMap<nsUint64HashKey, nsGlobalWindowOuter*>;

  using PrintPreviewResolver =
      std::function<void(const mozilla::dom::PrintPreviewResultInfo&)>;

  static void AssertIsOnMainThread()
#ifdef DEBUG
      ;
#else
  {
  }
#endif

  static nsGlobalWindowOuter* Cast(nsPIDOMWindowOuter* aPIWin) {
    return static_cast<nsGlobalWindowOuter*>(aPIWin);
  }
  static const nsGlobalWindowOuter* Cast(const nsPIDOMWindowOuter* aPIWin) {
    return static_cast<const nsGlobalWindowOuter*>(aPIWin);
  }
  static nsGlobalWindowOuter* Cast(mozIDOMWindowProxy* aWin) {
    return Cast(nsPIDOMWindowOuter::From(aWin));
  }

  bool IsOuterWindow() const final { return true; }  // Overriding EventTarget

  static nsGlobalWindowOuter* GetOuterWindowWithId(uint64_t aWindowID) {
    AssertIsOnMainThread();

    if (!sOuterWindowsById) {
      return nullptr;
    }

    nsGlobalWindowOuter* outerWindow = sOuterWindowsById->Get(aWindowID);
    return outerWindow;
  }

  static OuterWindowByIdTable* GetWindowsTable() {
    AssertIsOnMainThread();

    return sOuterWindowsById;
  }

  static nsGlobalWindowOuter* FromSupports(nsISupports* supports) {
    // Make sure this matches the casts we do in QueryInterface().
    return (nsGlobalWindowOuter*)(mozilla::dom::EventTarget*)supports;
  }

  static already_AddRefed<nsGlobalWindowOuter> Create(nsDocShell* aDocShell,
                                                      bool aIsChrome);

  // public methods
  nsPIDOMWindowOuter* GetPrivateParent();

  // callback for close event
  void ReallyCloseWindow();

  // nsISupports
  NS_DECL_ISUPPORTS_INHERITED
  NS_IMETHOD_(void) DeleteCycleCollectable() override;

  // nsWrapperCache
  virtual JSObject* WrapObject(JSContext* cx,
                               JS::Handle<JSObject*> aGivenProto) override {
    return EnsureInnerWindow() ? GetWrapper() : nullptr;
  }

  // nsIGlobalObject
  bool ShouldResistFingerprinting(RFPTarget aTarget) const final;
  mozilla::OriginTrials Trials() const final;
  mozilla::dom::FontFaceSet* GetFonts() final;

  // nsIGlobalJSObjectHolder
  JSObject* GetGlobalJSObject() final { return GetWrapper(); }
  JSObject* GetGlobalJSObjectPreserveColor() const final {
    return GetWrapperPreserveColor();
  }

  virtual nsresult EnsureScriptEnvironment() override;

  virtual nsIScriptContext* GetScriptContext() override;

  void PoisonOuterWindowProxy(JSObject* aObject);

  virtual bool IsBlackForCC(bool aTracingNeeded = true) override;

  // nsIScriptObjectPrincipal
  virtual nsIPrincipal* GetPrincipal() override;

  virtual nsIPrincipal* GetEffectiveCookiePrincipal() override;

  virtual nsIPrincipal* GetEffectiveStoragePrincipal() override;

  virtual nsIPrincipal* PartitionedPrincipal() override;

  // nsIDOMWindow
  NS_DECL_NSIDOMWINDOW

  mozilla::dom::ChromeMessageBroadcaster* GetMessageManager();
  mozilla::dom::ChromeMessageBroadcaster* GetGroupMessageManager(
      const nsAString& aGroup);

  nsresult OpenJS(const nsACString& aUrl, const nsAString& aName,
                  const nsAString& aOptions,
                  mozilla::dom::BrowsingContext** _retval);

  virtual mozilla::EventListenerManager* GetExistingListenerManager()
      const override;

  virtual mozilla::EventListenerManager* GetOrCreateListenerManager() override;

  bool ComputeDefaultWantsUntrusted(mozilla::ErrorResult& aRv) final;

  virtual nsPIDOMWindowOuter* GetOwnerGlobalForBindingsInternal() override;

  virtual nsIGlobalObject* GetOwnerGlobal() const override;

  EventTarget* GetTargetForEventTargetChain() override;

  using mozilla::dom::EventTarget::DispatchEvent;
  bool DispatchEvent(mozilla::dom::Event& aEvent,
                     mozilla::dom::CallerType aCallerType,
                     mozilla::ErrorResult& aRv) override;

  void GetEventTargetParent(mozilla::EventChainPreVisitor& aVisitor) override;

  nsresult PostHandleEvent(mozilla::EventChainPostVisitor& aVisitor) override;

  // nsPIDOMWindow
  virtual nsPIDOMWindowOuter* GetPrivateRoot() override;

  // Outer windows only.
  virtual void SetIsBackground(bool aIsBackground) override;
  virtual void SetChromeEventHandler(
      mozilla::dom::EventTarget* aChromeEventHandler) override;

  // Outer windows only.
  virtual void SetInitialPrincipal(
      nsIPrincipal* aNewWindowPrincipal, nsIContentSecurityPolicy* aCSP,
      const mozilla::Maybe<nsILoadInfo::CrossOriginEmbedderPolicy>& aCoep)
      override;

  virtual already_AddRefed<nsISupports> SaveWindowState() override;
  MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual nsresult RestoreWindowState(
      nsISupports* aState) override;

  virtual bool IsSuspended() const override;
  virtual bool IsFrozen() const override;

  virtual nsresult FireDelayedDOMEvents(bool aIncludeSubWindows) override;

  // Outer windows only.
  bool WouldReuseInnerWindow(Document* aNewDocument);

  void DetachFromDocShell(bool aIsBeingDiscarded);

  virtual nsresult SetNewDocument(
      Document* aDocument, nsISupports* aState, bool aForceReuseInnerWindow,
      mozilla::dom::WindowGlobalChild* aActor = nullptr) override;

  // Outer windows only.
  static void PrepareForProcessChange(JSObject* aProxy);

  // Outer windows only.
  void DispatchDOMWindowCreated();

  // Outer windows only.
  virtual void EnsureSizeAndPositionUpToDate() override;

  virtual void SuppressEventHandling() override;
  virtual void UnsuppressEventHandling() override;

  MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual nsGlobalWindowOuter* EnterModalState()
      override;
  virtual void LeaveModalState() override;

  // Outer windows only.
  virtual bool CanClose() override;
  virtual void ForceClose() override;

  // Outer windows only.
  virtual bool DispatchCustomEvent(
      const nsAString& aEventName,
      mozilla::ChromeOnlyDispatch aChromeOnlyDispatch) override;
  bool DispatchResizeEvent(const mozilla::CSSIntSize& aSize);

  // For accessing protected field mFullscreen
  friend class FullscreenTransitionTask;

  // Outer windows only.
  nsresult SetFullscreenInternal(FullscreenReason aReason,
                                 bool aIsFullscreen) final;
  void FullscreenWillChange(bool aIsFullscreen) final;
  void FinishFullscreenChange(bool aIsFullscreen) final;
  void ForceFullScreenInWidget() final;
  void MacFullscreenMenubarOverlapChanged(
      mozilla::DesktopCoord aOverlapAmount) final;
  bool SetWidgetFullscreen(FullscreenReason aReason, bool aIsFullscreen,
                           nsIWidget* aWidget);
  bool Fullscreen() const;

  // nsIInterfaceRequestor
  NS_DECL_NSIINTERFACEREQUESTOR

  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> IndexedGetterOuter(
      uint32_t aIndex);

  already_AddRefed<nsPIDOMWindowOuter> GetInProcessTop() override;
  // Similar to GetInProcessTop() except that it stops at content frames that
  // an extension has permission to access.  This is used by the third-party
  // util service in order to determine the top window for a channel which is
  // used in third-partiness checks.
  already_AddRefed<nsPIDOMWindowOuter>
  GetTopExcludingExtensionAccessibleContentFrames(nsIURI* aURIBeingLoaded);
  nsPIDOMWindowOuter* GetInProcessScriptableTop() override;
  inline nsGlobalWindowOuter* GetInProcessTopInternal();

  inline nsGlobalWindowOuter* GetInProcessScriptableTopInternal();

  already_AddRefed<mozilla::dom::BrowsingContext> GetChildWindow(
      const nsAString& aName);

  // Returns true if we've reached the state in windows of this BC group
  // where we ask the user if further dialogs should be blocked.
  //
  // This function is implemented in terms of
  // BrowsingContextGroup::DialogsAreBeingAbused.
  bool ShouldPromptToBlockDialogs();

  // These functions are used for controlling and determining whether dialogs
  // (alert, prompt, confirm) are currently allowed in this browsing context
  // group. If you want to temporarily disable dialogs, please use
  // TemporarilyDisableDialogs, not EnableDialogs/DisableDialogs, because
  // correctly determining whether to re-enable dialogs is actually quite
  // difficult.
  void EnableDialogs();
  void DisableDialogs();
  // Outer windows only.
  bool AreDialogsEnabled();

  class MOZ_RAII TemporarilyDisableDialogs {
   public:
    explicit TemporarilyDisableDialogs(mozilla::dom::BrowsingContext* aBC);
    ~TemporarilyDisableDialogs();

   private:
    // This is the browsing context group whose dialog state we messed
    // with.  We just want to keep it alive, because we plan to poke at its
    // members in our destructor.
    RefPtr<mozilla::dom::BrowsingContextGroup> mGroup;
    // This is not a AutoRestore<bool> because that would require careful
    // member destructor ordering, which is a bit fragile.  This way we can
    // explicitly restore things before we drop our ref to mGroup.
    bool mSavedDialogsEnabled = false;
  };
  friend class TemporarilyDisableDialogs;

  nsIScriptContext* GetContextInternal();

  bool IsCreatingInnerWindow() const { return mCreatingInnerWindow; }

  bool IsChromeWindow() const { return mIsChrome; }

  // GetScrollContainerFrame does not flush. Callers should do it themselves as
  // needed, depending on which info they actually want off the scroll container
  // frame.
  mozilla::ScrollContainerFrame* GetScrollContainerFrame();

  // Outer windows only.
  void UnblockScriptedClosing();

  static void Init();
  static void ShutDown();
  static bool IsCallerChrome();

  friend class WindowStateHolder;

  NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(
      nsGlobalWindowOuter, mozilla::dom::EventTarget)

  virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod) override;
  virtual void SetReadyForFocus() override;
  virtual void PageHidden(bool aIsEnteringBFCacheInParent) override;

  /**
   * Set a arguments for this window. This will be set on the window
   * right away (if there's an existing document) and it will also be
   * installed on the window when the next document is loaded.
   *
   * This function passes |arguments| back from nsWindowWatcher to
   * nsGlobalWindow.
   */
  nsresult SetArguments(nsIArray* aArguments);

  bool IsClosedOrClosing() {
    return (mIsClosed || mInClose || mHavePendingClose || mCleanedUp);
  }

  bool IsCleanedUp() const { return mCleanedUp; }

  virtual void FirePopupBlockedEvent(
      Document* aDoc, nsIURI* aPopupURI, const nsAString& aPopupWindowName,
      const nsAString& aPopupWindowFeatures) override;

  void AddSizeOfIncludingThis(nsWindowSizes& aWindowSizes) const;

  void AllowScriptsToClose() { mAllowScriptsToClose = true; }

  // Outer windows only.
  uint32_t GetAutoActivateVRDisplayID();
  // Outer windows only.
  void SetAutoActivateVRDisplayID(uint32_t aAutoActivateVRDisplayID);

#define EVENT(name_, id_, type_, struct_)                              \
  mozilla::dom::EventHandlerNonNull* GetOn##name_() {                  \
    mozilla::EventListenerManager* elm = GetExistingListenerManager(); \
    return elm ? elm->GetEventHandler(nsGkAtoms::on##name_) : nullptr; \
  }                                                                    \
  void SetOn##name_(mozilla::dom::EventHandlerNonNull* handler) {      \
    mozilla::EventListenerManager* elm = GetOrCreateListenerManager(); \
    if (elm) {                                                         \
      elm->SetEventHandler(nsGkAtoms::on##name_, handler);             \
    }                                                                  \
  }
#define ERROR_EVENT(name_, id_, type_, struct_)                          \
  mozilla::dom::OnErrorEventHandlerNonNull* GetOn##name_() {             \
    mozilla::EventListenerManager* elm = GetExistingListenerManager();   \
    return elm ? elm->GetOnErrorEventHandler() : nullptr;                \
  }                                                                      \
  void SetOn##name_(mozilla::dom::OnErrorEventHandlerNonNull* handler) { \
    mozilla::EventListenerManager* elm = GetOrCreateListenerManager();   \
    if (elm) {                                                           \
      elm->SetEventHandler(handler);                                     \
    }                                                                    \
  }
#define BEFOREUNLOAD_EVENT(name_, id_, type_, struct_)                 \
  mozilla::dom::OnBeforeUnloadEventHandlerNonNull* GetOn##name_() {    \
    mozilla::EventListenerManager* elm = GetExistingListenerManager(); \
    return elm ? elm->GetOnBeforeUnloadEventHandler() : nullptr;       \
  }                                                                    \
  void SetOn##name_(                                                   \
      mozilla::dom::OnBeforeUnloadEventHandlerNonNull* handler) {      \
    mozilla::EventListenerManager* elm = GetOrCreateListenerManager(); \
    if (elm) {                                                         \
      elm->SetEventHandler(handler);                                   \
    }                                                                  \
  }
#define WINDOW_ONLY_EVENT EVENT
#define TOUCH_EVENT EVENT
#include "mozilla/EventNameList.h"
#undef TOUCH_EVENT
#undef WINDOW_ONLY_EVENT
#undef BEFOREUNLOAD_EVENT
#undef ERROR_EVENT
#undef EVENT

  nsISupports* GetParentObject() { return nullptr; }

  Document* GetDocument() { return GetDoc(); }
  void GetNameOuter(nsAString& aName);
  void SetNameOuter(const nsAString& aName, mozilla::ErrorResult& aError);
  mozilla::dom::Location* GetLocation() override;
  void GetStatusOuter(nsAString& aStatus);
  void SetStatusOuter(const nsAString& aStatus);
  void CloseOuter(bool aTrustedCaller);
  nsresult Close() override;
  bool GetClosedOuter();
  bool Closed() override;
  void StopOuter(mozilla::ErrorResult& aError);
  // TODO: Convert FocusOuter() to MOZ_CAN_RUN_SCRIPT and get rid of the
  // kungFuDeathGrip in it.
  MOZ_CAN_RUN_SCRIPT_BOUNDARY void FocusOuter(
      mozilla::dom::CallerType aCallerType, bool aFromOtherProcess,
      uint64_t aActionId);
  nsresult Focus(mozilla::dom::CallerType aCallerType) override;
  // TODO: Convert BlurOuter() to MOZ_CAN_RUN_SCRIPT and get rid of the
  // kungFuDeathGrip in it.
  MOZ_CAN_RUN_SCRIPT_BOUNDARY void BlurOuter(
      mozilla::dom::CallerType aCallerType);
  mozilla::dom::WindowProxyHolder GetFramesOuter();
  uint32_t Length();
  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> GetTopOuter();

  nsresult GetPrompter(nsIPrompt** aPrompt) override;

 protected:
  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder>
  GetOpenerWindowOuter();
  // Initializes the mWasOffline member variable
  void InitWasOffline();

 public:
  nsPIDOMWindowOuter* GetSameProcessOpener();
  already_AddRefed<mozilla::dom::BrowsingContext> GetOpenerBrowsingContext();
  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> GetOpener() override;
  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> GetParentOuter();
  already_AddRefed<nsPIDOMWindowOuter> GetInProcessParent() override;
  nsPIDOMWindowOuter* GetInProcessScriptableParent() override;
  nsPIDOMWindowOuter* GetInProcessScriptableParentOrNull() override;
  mozilla::dom::Element* GetFrameElement(nsIPrincipal& aSubjectPrincipal);
  mozilla::dom::Element* GetFrameElement() override;
  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> OpenOuter(
      const nsAString& aUrl, const nsAString& aName, const nsAString& aOptions,
      mozilla::ErrorResult& aError);
  nsresult Open(const nsACString& aUrl, const nsAString& aName,
                const nsAString& aOptions, nsDocShellLoadState* aLoadState,
                bool aForceNoOpener,
                mozilla::dom::BrowsingContext** _retval) override;
  mozilla::dom::Navigator* GetNavigator() override;

 protected:
  bool AlertOrConfirm(bool aAlert, const nsAString& aMessage,
                      nsIPrincipal& aSubjectPrincipal,
                      mozilla::ErrorResult& aError);

 public:
  void AlertOuter(const nsAString& aMessage, nsIPrincipal& aSubjectPrincipal,
                  mozilla::ErrorResult& aError);
  bool ConfirmOuter(const nsAString& aMessage, nsIPrincipal& aSubjectPrincipal,
                    mozilla::ErrorResult& aError);
  void PromptOuter(const nsAString& aMessage, const nsAString& aInitial,
                   nsAString& aReturn, nsIPrincipal& aSubjectPrincipal,
                   mozilla::ErrorResult& aError);

  MOZ_CAN_RUN_SCRIPT void PrintOuter(mozilla::ErrorResult& aError);

  enum class IsPreview : bool { No, Yes };
  enum class IsForWindowDotPrint : bool { No, Yes };
  MOZ_CAN_RUN_SCRIPT mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder>
  Print(nsIPrintSettings*,
        mozilla::layout::RemotePrintJobChild* aRemotePrintJob,
        nsIWebProgressListener*, nsIDocShell*, IsPreview, IsForWindowDotPrint,
        PrintPreviewResolver&&, RefPtr<mozilla::dom::BrowsingContext>*,
        mozilla::ErrorResult&);
  mozilla::dom::Selection* GetSelectionOuter();
  already_AddRefed<mozilla::dom::Selection> GetSelection() override;
  nsScreen* GetScreen();
  void MoveToOuter(int32_t aXPos, int32_t aYPos,
                   mozilla::dom::CallerType aCallerType,
                   mozilla::ErrorResult& aError);
  void MoveByOuter(int32_t aXDif, int32_t aYDif,
                   mozilla::dom::CallerType aCallerType,
                   mozilla::ErrorResult& aError);
  nsresult MoveBy(int32_t aXDif, int32_t aYDif) override;
  void ResizeToOuter(int32_t aWidth, int32_t aHeight,
                     mozilla::dom::CallerType aCallerType,
                     mozilla::ErrorResult& aError);
  void ResizeByOuter(int32_t aWidthDif, int32_t aHeightDif,
                     mozilla::dom::CallerType aCallerType,
                     mozilla::ErrorResult& aError);
  double GetScrollXOuter();
  double GetScrollYOuter();

  MOZ_CAN_RUN_SCRIPT_BOUNDARY
  void SizeToContentOuter(const mozilla::dom::SizeToContentConstraints&,
                          mozilla::ErrorResult&);
  nsIControllers* GetControllersOuter(mozilla::ErrorResult& aError);
  nsresult GetControllers(nsIControllers** aControllers) override;
  float GetMozInnerScreenXOuter(mozilla::dom::CallerType aCallerType);
  float GetMozInnerScreenYOuter(mozilla::dom::CallerType aCallerType);
  bool GetFullscreenOuter();
  bool GetFullScreen() override;
  void SetFullscreenOuter(bool aFullscreen, mozilla::ErrorResult& aError);
  nsresult SetFullScreen(bool aFullscreen) override;
  bool FindOuter(const nsAString& aString, bool aCaseSensitive, bool aBackwards,
                 bool aWrapAround, bool aWholeWord, bool aSearchInFrames,
                 bool aShowDialog, mozilla::ErrorResult& aError);

  mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> OpenDialogOuter(
      JSContext* aCx, const nsAString& aUrl, const nsAString& aName,
      const nsAString& aOptions,
      const mozilla::dom::Sequence<JS::Value>& aExtraArgument,
      mozilla::ErrorResult& aError);
  nsresult OpenDialog(const nsACString& aUrl, const nsAString& aName,
                      const nsAString& aOptions, nsIArray* aArguments,
                      mozilla::dom::BrowsingContext** _retval) override;
  void UpdateCommands(const nsAString& anAction) override;

  already_AddRefed<mozilla::dom::BrowsingContext> GetContentInternal(
      mozilla::dom::CallerType aCallerType, mozilla::ErrorResult& aError);
  void GetContentOuter(JSContext* aCx, JS::MutableHandle<JSObject*> aRetval,
                       mozilla::dom::CallerType aCallerType,
                       mozilla::ErrorResult& aError);

  // ChromeWindow bits.  Do NOT call these unless your window is in
  // fact chrome.
  nsIBrowserDOMWindow* GetBrowserDOMWindow();
  void SetBrowserDOMWindowOuter(nsIBrowserDOMWindow* aBrowserWindow);
  void SetCursorOuter(const nsACString& aCursor, mozilla::ErrorResult& aError);

  already_AddRefed<nsWindowRoot> GetWindowRootOuter();

  nsIDOMWindowUtils* WindowUtils();

  virtual bool IsInSyncOperation() override;

 public:
  double GetInnerWidthOuter(mozilla::ErrorResult& aError);

 protected:
  nsresult GetInnerWidth(double* aInnerWidth) override;

 public:
  double GetInnerHeightOuter(mozilla::ErrorResult& aError);

 protected:
  nsresult GetInnerHeight(double* aInnerHeight) override;
  int32_t GetScreenXOuter(mozilla::dom::CallerType aCallerType,
                          mozilla::ErrorResult& aError);
  int32_t GetScreenYOuter(mozilla::dom::CallerType aCallerType,
                          mozilla::ErrorResult& aError);
  int32_t GetOuterWidthOuter(mozilla::dom::CallerType aCallerType,
                             mozilla::ErrorResult& aError);
  int32_t GetOuterHeightOuter(mozilla::dom::CallerType aCallerType,
                              mozilla::ErrorResult& aError);

  friend class HashchangeCallback;
  friend class mozilla::dom::BarProp;

  // Object Management
  virtual ~nsGlobalWindowOuter();
  void DropOuterWindowDocs();
  void CleanUp();
  void ClearControllers();
  // Outer windows only.
  void FinalClose();

  inline void MaybeClearInnerWindow(nsPIDOMWindowInner* aExpectedInner);

  // Get the parent, returns null if this is a toplevel window
  nsPIDOMWindowOuter* GetInProcessParentInternal();

 protected:
  // Window Control Functions

  // Outer windows only.
  virtual nsresult OpenNoNavigate(
      const nsACString& aUrl, const nsAString& aName, const nsAString& aOptions,
      mozilla::dom::BrowsingContext** _retval) override;

 private:
  explicit nsGlobalWindowOuter(uint64_t aWindowID);

  enum class PrintKind : uint8_t { None, InternalPrint, WindowDotPrint };

  /**
   * @param aUrl the URL we intend to load into the window.  If aNavigate is
   *        true, we'll actually load this URL into the window. Otherwise,
   *        aUrl is advisory; OpenInternal will not load the URL into the
   *        new window.
   *
   * @param aName the name to use for the new window
   *
   * @param aOptions the window options to use for the new window
   *
   * @param aDialog true when called from variants of OpenDialog.  If this is
   *        true, this method will skip popup blocking checks.  The aDialog
   *        argument is passed on to the window watcher.
   *
   * @param aCalledNoScript true when called via the [noscript] open()
   *        and openDialog() methods.  When this is true, we do NOT want to use
   *        the JS stack for things like caller determination.
   *
   * @param aDoJSFixups true when this is the content-accessible JS version of
   *        window opening.  When true, popups do not cause us to throw, we save
   *        the caller's principal in the new window for later consumption, and
   *        we make sure that there is a document in the newly-opened window.
   *        Note that this last will only be done if the newly-opened window is
   *        non-chrome.
   *
   * @param aNavigate true if we should navigate to the provided URL, false
   *        otherwise.  When aNavigate is false, we also skip our can-load
   *        security check, on the assumption that whoever *actually* loads this
   *        page will do their own security check.
   *
   * @param aArguments The arguments to pass to the new window. The first three
   *                   args, if present, will be aUrl, aName, and aOptions. So
   *                   this param only matters if there are more than 3
   *                   arguments.
   *
   * @param aLoadState to be passed on along to the windowwatcher.
   *
   * @param aForceNoOpener if true, will act as if "noopener" were passed in
   *                       aOptions, but without affecting any other window
   *                       features.
   *
   * @param aPrintKind     Whether this is a browser created for printing, and
   *                       if so for which kind of print.
   *
   * @param aReturn [out] The window that was opened, if any.  Will be null if
   *                      aForceNoOpener is true of if aOptions contains
   *                      "noopener".
   *
   * Outer windows only.
   */
  nsresult OpenInternal(const nsACString& aUrl, const nsAString& aName,
                        const nsAString& aOptions, bool aDialog,
                        bool aCalledNoScript, bool aDoJSFixups, bool aNavigate,
                        nsIArray* aArguments, nsDocShellLoadState* aLoadState,
                        bool aForceNoOpener, PrintKind aPrintKind,
                        mozilla::dom::BrowsingContext** aReturn);

  mozilla::Result<already_AddRefed<nsIURI>, nsresult>
  URIfromURLAndMaybeDoSecurityCheck(const nsACString& aURL,
                                    bool aSecurityCheck);

 public:
  mozilla::dom::PopupBlocker::PopupControlState RevisePopupAbuseLevel(
      mozilla::dom::PopupBlocker::PopupControlState aState);
  void FireAbuseEvents(const nsACString& aPopupURL,
                       const nsAString& aPopupWindowName,
                       const nsAString& aPopupWindowFeatures);

  void FlushPendingNotifications(mozilla::FlushType aType);

  // Outer windows only.
  void EnsureReflowFlushAndPaint();
  void CheckSecurityWidthAndHeight(int32_t* width, int32_t* height,
                                   mozilla::dom::CallerType aCallerType);
  void CheckSecurityLeftAndTop(int32_t* left, int32_t* top,
                               mozilla::dom::CallerType aCallerType);

  // Outer windows only.
  // Arguments to this function should have values in app units
  void SetCSSViewportWidthAndHeight(nscoord width, nscoord height);

  static bool CanSetProperty(const char* aPrefName);

  static void MakeMessageWithPrincipal(nsAString& aOutMessage,
                                       nsIPrincipal* aSubjectPrincipal,
                                       bool aUseHostPort,
                                       const char* aNullMessage,
                                       const char* aContentMessage,
                                       const char* aFallbackMessage);

  // Outer windows only.
  MOZ_CAN_RUN_SCRIPT_BOUNDARY
  bool CanMoveResizeWindows(mozilla::dom::CallerType aCallerType);

  // If aDoFlush is true, we'll flush our own layout; otherwise we'll try to
  // just flush our parent and only flush ourselves if we think we need to.
  // Outer windows only.
  mozilla::CSSPoint GetScrollXY(bool aDoFlush);

  int32_t GetScrollBoundaryOuter(mozilla::Side aSide);

  // Outer windows only.
  nsresult GetInnerSize(mozilla::CSSSize& aSize);
  mozilla::CSSIntSize GetOuterSize(mozilla::dom::CallerType aCallerType,
                                   mozilla::ErrorResult& aError);
  nsRect GetInnerScreenRect();
  static mozilla::Maybe<mozilla::CSSIntSize> GetRDMDeviceSize(
      const Document& aDocument);

  // Outer windows only.
  // If aLookForCallerOnJSStack is true, this method will look at the JS stack
  // to determine who the caller is.  If it's false, it'll use |this| as the
  // caller.
  bool WindowExists(const nsAString& aName, bool aForceNoOpener,
                    bool aLookForCallerOnJSStack);

  already_AddRefed<nsIWidget> GetMainWidget();
  nsIWidget* GetNearestWidget() const;

  bool IsInModalState();

  // Convenience functions for the methods which call methods of nsIBaseWindow
  // because it takes/returns device pixels.  Unfortunately, mPresContext may
  // have older scale value for the corresponding widget.  Therefore, these
  // helper methods convert between CSS pixels and device pixels with aWindow.
  //
  // FIXME(emilio): Seems like updating the pres context dpi sync shouldn't be
  // all that much work and should avoid some hackiness?
  mozilla::CSSToLayoutDeviceScale CSSToDevScaleForBaseWindow(nsIBaseWindow*);

  void SetFocusedElement(mozilla::dom::Element* aElement,
                         uint32_t aFocusMethod = 0,
                         bool aNeedsFocus = false) override;

  uint32_t GetFocusMethod() override;

  bool ShouldShowFocusRing() override;

 public:
  already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() override;

 protected:
  void NotifyWindowIDDestroyed(const char* aTopic);

  void ClearStatus();

  void UpdateParentTarget() override;

 protected:
  // Helper for getComputedStyle and getDefaultComputedStyle
  already_AddRefed<nsICSSDeclaration> GetComputedStyleHelperOuter(
      mozilla::dom::Element& aElt, const nsAString& aPseudoElt,
      bool aDefaultStylesOnly, mozilla::ErrorResult& aRv);

  // Outer windows only.
  void PreloadLocalStorage();

  mozilla::CSSPoint ScreenEdgeSlop();
  mozilla::CSSCoord ScreenEdgeSlopX() { return ScreenEdgeSlop().X(); }
  mozilla::CSSCoord ScreenEdgeSlopY() { return ScreenEdgeSlop().Y(); }

  // Returns CSS pixels based on primary screen.  Outer windows only.
  mozilla::CSSIntPoint GetScreenXY(mozilla::dom::CallerType aCallerType,
                                   mozilla::ErrorResult& aError);

  void PostMessageMozOuter(JSContext* aCx, JS::Handle<JS::Value> aMessage,
                           const nsAString& aTargetOrigin,
                           JS::Handle<JS::Value> aTransfer,
                           nsIPrincipal& aSubjectPrincipal,
                           mozilla::ErrorResult& aError);

 public:
  /**
   * Compute the principal to use for checking against the target principal in a
   * postMessage call.
   *
   * @param aTargetOrigin The value passed as the targetOrigin argument to the
   * postMessage call.
   *
   * @param aTargetOriginURI The origin of the URI contained in aTargetOrigin
   * (see GatherPostMessageData).
   *
   * @param aCallerPrincipal The principal of the incumbent global of the
   * postMessage call (see GatherPostMessageData).
   *
   * @param aSubjectPrincipal The subject principal for the postMessage call.
   *
   * @param aProvidedPrincipal [out] The principal to use for checking against
   * the target's principal.
   *
   * @return Whether the postMessage call should continue or return now.
   */
  bool GetPrincipalForPostMessage(const nsAString& aTargetOrigin,
                                  nsIURI* aTargetOriginURI,
                                  nsIPrincipal* aCallerPrincipal,
                                  nsIPrincipal& aSubjectPrincipal,
                                  nsIPrincipal** aProvidedPrincipal);

 private:
  /**
   * Gather the necessary data from the caller for a postMessage call.
   *
   * @param aCx The JSContext.
   *
   * @param aTargetOrigin The value passed as the targetOrigin argument to the
   * postMessage call.
   *
   * @param aSource [out] The browsing context for the incumbent global.
   *
   * @param aOrigin [out] The value to use for the origin property of the
   * MessageEvent object.
   *
   * @param aTargetOriginURI [out] The origin of the URI contained in
   * aTargetOrigin, null if aTargetOrigin is "/" or "*".
   *
   * @param aCallerPrincipal [out] The principal of the incumbent global of the
   *                               postMessage call.
   *
   * @param aCallerInnerWindow [out] Inner window of the caller of
   * postMessage, or null if the incumbent global is not a Window.
   *
   * @param aCallerURI [out] The URI of the document of the incumbent
   * global if it's a Window, null otherwise.
   *
   * @param aCallerAgentCluterId [out] If a non-nullptr is passed, it would
   * return the caller's agent cluster id.
   *
   * @param aScriptLocation [out] If we do not have a caller's URI, then
   * use script location as a sourcename for creating an error object.
   *
   * @param aError [out] The error, if any.
   *
   * @return Whether the postMessage call should continue or return now.
   */
  static bool GatherPostMessageData(
      JSContext* aCx, const nsAString& aTargetOrigin,
      mozilla::dom::BrowsingContext** aSource, nsAString& aOrigin,
      nsIURI** aTargetOriginURI, nsIPrincipal** aCallerPrincipal,
      nsGlobalWindowInner** aCallerInnerWindow, nsIURI** aCallerURI,
      mozilla::Maybe<nsID>* aCallerAgentClusterId, nsACString* aScriptLocation,
      mozilla::ErrorResult& aError);

  // Helper called after moving/resizing, to update docShell's presContext
  // if we have caused a resolution change by moving across monitors.
  void CheckForDPIChange();

 private:
  enum class SecureContextFlags { eDefault, eIgnoreOpener };
  // Called only on outer windows to compute the value that will be returned by
  // IsSecureContext() for the inner window that corresponds to aDocument.
  bool ComputeIsSecureContext(
      Document* aDocument,
      SecureContextFlags aFlags = SecureContextFlags::eDefault);

  void SetDocShell(nsDocShell* aDocShell);

  // nsPIDOMWindow{Inner,Outer} should be able to see these helper methods.
  friend class nsPIDOMWindowInner;
  friend class nsPIDOMWindowOuter;

  void SetIsBackgroundInternal(bool aIsBackground);

  nsresult GetInterfaceInternal(const nsIID& aIID, void** aSink);

  void MaybeAllowStorageForOpenedWindow(nsIURI* aURI);

  bool IsOnlyTopLevelDocumentInSHistory();

  void MaybeResetWindowName(Document* aNewDocument);

 public:
  bool DelayedPrintUntilAfterLoad() const {
    return mDelayedPrintUntilAfterLoad;
  }

  bool DelayedCloseForPrinting() const { return mDelayedCloseForPrinting; }

  void StopDelayingPrintingUntilAfterLoad() {
    mShouldDelayPrintUntilAfterLoad = false;
  }

  // Dispatch a runnable related to the global.
  nsresult Dispatch(already_AddRefed<nsIRunnable>&&) const final;
  nsISerialEventTarget* SerialEventTarget() const final;

 protected:
  nsresult ProcessWidgetFullscreenRequest(FullscreenReason aReason,
                                          bool aFullscreen);

  // Indicates whether browser window should be in fullscreen mode and the
  // reason, e.g. browser fullscreen mode or DOM fullscreen API, which should
  // never be ForForceExitFullscreen. Nothing if browser window should not be in
  // fullscreen mode.
  mozilla::Maybe<FullscreenReason> mFullscreen;

  // Indicates whether new fullscreen request have been made when previous
  // fullscreen request is still in-process.
  bool mFullscreenHasChangedDuringProcessing : 1;

  using FullscreenRequest = struct FullscreenRequest {
    FullscreenRequest(FullscreenReason aReason, bool aFullscreen)
        : mReason(aReason), mFullscreen(aFullscreen) {
      MOZ_ASSERT(
          mReason != FullscreenReason::ForForceExitFullscreen || !mFullscreen,
          "FullscreenReason::ForForceExitFullscreen can only be used with "
          "exiting fullscreen");
    }
    FullscreenReason mReason;
    bool mFullscreen : 1;
  };
  // The current in-process fullscreen request. Nothing if there is no
  // in-process request.
  mozilla::Maybe<FullscreenRequest> mInProcessFullscreenRequest;

  bool mForceFullScreenInWidget : 1;
  bool mIsClosed : 1;
  bool mInClose : 1;
  // mHavePendingClose means we've got a termination function set to
  // close us when the JS stops executing or that we have a close
  // event posted.  If this is set, just ignore window.close() calls.
  bool mHavePendingClose : 1;

  // Indicates whether scripts are allowed to close this window.
  bool mBlockScriptedClosingFlag : 1;

  // Window offline status. Checked to see if we need to fire offline event
  bool mWasOffline : 1;

  // Indicates whether we're in the middle of creating an initializing
  // a new inner window object.
  bool mCreatingInnerWindow : 1;

  // Fast way to tell if this is a chrome window (without having to QI).
  bool mIsChrome : 1;

  // whether scripts may close the window,
  // even if "dom.allow_scripts_to_close_windows" is false.
  bool mAllowScriptsToClose : 1;

  bool mTopLevelOuterContentWindow : 1;

  // Whether we've delayed a print until after load.
  bool mDelayedPrintUntilAfterLoad : 1;
  // Whether we've delayed a close() operation because there was a pending
  // print() operation.
  bool mDelayedCloseForPrinting : 1;
  // Whether we should delay printing until after load.
  bool mShouldDelayPrintUntilAfterLoad : 1;

  nsCOMPtr<nsIScriptContext> mContext;
  nsCOMPtr<nsIControllers> mControllers;

  // For |window.arguments|, via |openDialog|.
  nsCOMPtr<nsIArray> mArguments;

  RefPtr<nsDOMWindowUtils> mWindowUtils;
  nsString mStatus;

  RefPtr<mozilla::dom::Storage> mLocalStorage;

  nsCOMPtr<nsIPrincipal> mDocumentPrincipal;
  nsCOMPtr<nsIPrincipal> mDocumentCookiePrincipal;
  nsCOMPtr<nsIPrincipal> mDocumentStoragePrincipal;
  nsCOMPtr<nsIPrincipal> mDocumentPartitionedPrincipal;

#ifdef DEBUG
  uint32_t mSerial;

  bool mSetOpenerWindowCalled;
  nsCOMPtr<nsIURI> mLastOpenedURI;
#endif

  bool mCleanedUp;

  // It's useful when we get matched EnterModalState/LeaveModalState calls, in
  // which case the outer window is responsible for unsuspending events on the
  // documents. If we don't (for example, if the outer window is closed before
  // the LeaveModalState call), then the inner window whose mDoc is in our
  // mSuspendedDocs is responsible for unsuspending.
  nsTArray<RefPtr<Document>> mSuspendedDocs;

  // This is the CC generation the last time we called CanSkip.
  uint32_t mCanSkipCCGeneration;

  // When non-zero, the document should receive a vrdisplayactivate event
  // after loading.  The value is the ID of the VRDisplay that content should
  // begin presentation on.
  uint32_t mAutoActivateVRDisplayID;

  static OuterWindowByIdTable* sOuterWindowsById;

  // Members in the mChromeFields member should only be used in chrome windows.
  // All accesses to this field should be guarded by a check of mIsChrome.
  struct ChromeFields {
    nsCOMPtr<nsIBrowserDOMWindow> mBrowserDOMWindow;
    // A weak pointer to the PresShell that we are doing fullscreen for.
    // The pointer being set indicates we've set the IsInFullscreenChange
    // flag on this pres shell.
    nsWeakPtr mFullscreenPresShell;
  } mChromeFields;

  // Whether the chrome window is currently in a full screen transition. This
  // flag is updated from FullscreenTransitionTask.
  bool mIsInFullScreenTransition = false;

  friend class nsDOMWindowUtils;
  friend class mozilla::dom::BrowsingContext;
  friend class mozilla::dom::PostMessageEvent;
  friend class mozilla::dom::TimeoutManager;
  friend class nsGlobalWindowInner;
};

inline nsISupports* ToSupports(nsGlobalWindowOuter* p) {
  return static_cast<mozilla::dom::EventTarget*>(p);
}

inline nsISupports* ToCanonicalSupports(nsGlobalWindowOuter* p) {
  return static_cast<mozilla::dom::EventTarget*>(p);
}

inline nsGlobalWindowOuter* nsGlobalWindowOuter::GetInProcessTopInternal() {
  nsCOMPtr<nsPIDOMWindowOuter> top = GetInProcessTop();
  if (top) {
    return nsGlobalWindowOuter::Cast(top);
  }
  return nullptr;
}

inline nsGlobalWindowOuter*
nsGlobalWindowOuter::GetInProcessScriptableTopInternal() {
  nsPIDOMWindowOuter* top = GetInProcessScriptableTop();
  return nsGlobalWindowOuter::Cast(top);
}

inline nsIScriptContext* nsGlobalWindowOuter::GetContextInternal() {
  return mContext;
}

inline void nsGlobalWindowOuter::MaybeClearInnerWindow(
    nsPIDOMWindowInner* aExpectedInner) {
  if (mInnerWindow == aExpectedInner) {
    mInnerWindow = nullptr;
  }
}

#endif /* nsGlobalWindowOuter_h___ */