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/* -*- 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 nsPIDOMWindow_h__
#define nsPIDOMWindow_h__
#include "nsIDOMWindow.h"
#include "mozIDOMWindow.h"
#include "nsCOMPtr.h"
#include "nsTArray.h"
#include "Units.h"
#include "mozilla/dom/EventTarget.h"
#include "mozilla/EventForwards.h"
#include "mozilla/Maybe.h"
#include "mozilla/TaskCategory.h"
#include "js/TypeDecls.h"
#include "nsRefPtrHashtable.h"
#include "nsILoadInfo.h"
// Only fired for inner windows.
#define DOM_WINDOW_DESTROYED_TOPIC "dom-window-destroyed"
#define DOM_WINDOW_FROZEN_TOPIC "dom-window-frozen"
#define DOM_WINDOW_THAWED_TOPIC "dom-window-thawed"
class nsDOMOfflineResourceList;
class nsGlobalWindowInner;
class nsGlobalWindowOuter;
class nsIArray;
class nsIBaseWindow;
class nsIChannel;
class nsIContent;
class nsIContentSecurityPolicy;
class nsICSSDeclaration;
class nsIDocShell;
class nsIDocShellTreeOwner;
class nsDocShellLoadState;
class nsIPrincipal;
class nsIRunnable;
class nsIScriptTimeoutHandler;
class nsISerialEventTarget;
class nsIURI;
class nsIWebBrowserChrome;
class nsPIDOMWindowInner;
class nsPIDOMWindowOuter;
class nsPIWindowRoot;
using SuspendTypes = uint32_t;
namespace mozilla::dom {
class AudioContext;
class BrowsingContext;
class BrowsingContextGroup;
class ClientInfo;
class ClientState;
class ContentFrameMessageManager;
class DocGroup;
class Document;
class Element;
class Location;
class MediaDevices;
class MediaKeys;
class Navigator;
class Performance;
class Selection;
class ServiceWorker;
class ServiceWorkerDescriptor;
class Timeout;
class TimeoutManager;
class WindowContext;
class WindowGlobalChild;
class CustomElementRegistry;
enum class CallerType : uint32_t;
} // namespace mozilla::dom
enum UIStateChangeType {
UIStateChangeType_NoChange,
UIStateChangeType_Set,
UIStateChangeType_Clear,
UIStateChangeType_Invalid // used for serialization only
};
enum class FullscreenReason {
// Toggling the fullscreen mode requires trusted context.
ForFullscreenMode,
// Fullscreen API is the API provided to untrusted content.
ForFullscreenAPI,
// This reason can only be used with exiting fullscreen.
// It is otherwise identical to eForFullscreenAPI except it would
// suppress the fullscreen transition.
ForForceExitFullscreen
};
// Must be kept in sync with xpcom/rust/xpcom/src/interfaces/nonidl.rs
#define NS_PIDOMWINDOWINNER_IID \
{ \
0x775dabc9, 0x8f43, 0x4277, { \
0x9a, 0xdb, 0xf1, 0x99, 0x0d, 0x77, 0xcf, 0xfb \
} \
}
// Must be kept in sync with xpcom/rust/xpcom/src/interfaces/nonidl.rs
#define NS_PIDOMWINDOWOUTER_IID \
{ \
0x769693d4, 0xb009, 0x4fe2, { \
0xaf, 0x18, 0x7d, 0xc8, 0xdf, 0x74, 0x96, 0xdf \
} \
}
class nsPIDOMWindowInner : public mozIDOMWindow {
protected:
using Document = mozilla::dom::Document;
friend nsGlobalWindowInner;
friend nsGlobalWindowOuter;
nsPIDOMWindowInner(nsPIDOMWindowOuter* aOuterWindow,
mozilla::dom::WindowGlobalChild* aActor);
~nsPIDOMWindowInner();
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_PIDOMWINDOWINNER_IID)
nsIGlobalObject* AsGlobal();
const nsIGlobalObject* AsGlobal() const;
nsPIDOMWindowOuter* GetOuterWindow() const { return mOuterWindow; }
static nsPIDOMWindowInner* From(mozIDOMWindow* aFrom) {
return static_cast<nsPIDOMWindowInner*>(aFrom);
}
NS_IMPL_FROMEVENTTARGET_HELPER_WITH_GETTER(nsPIDOMWindowInner,
GetAsWindowInner())
// Returns true if this object is the currently-active inner window for its
// BrowsingContext.
bool IsCurrentInnerWindow() const;
// Returns true if the document of this window is the active document. This
// is identical to IsCurrentInnerWindow() now that document.open() no longer
// creates new inner windows for the document it is called on.
inline bool HasActiveDocument();
// Return true if this object is the currently-active inner window for its
// BrowsingContext and any container document is also fully active.
bool IsFullyActive() const;
// Returns true if this window is the same as mTopInnerWindow
inline bool IsTopInnerWindow() const;
// Returns true if this was the current window for its BrowsingContext when it
// was discarded.
virtual bool WasCurrentInnerWindow() const = 0;
// Check whether a document is currently loading (really checks if the
// load event has completed). May not be reset to false on errors.
inline bool IsLoading() const;
inline bool IsHandlingResizeEvent() const;
// Note: not related to IsLoading. Set to false if there's an error, etc.
virtual void SetActiveLoadingState(bool aIsActiveLoading) = 0;
bool AddAudioContext(mozilla::dom::AudioContext* aAudioContext);
void RemoveAudioContext(mozilla::dom::AudioContext* aAudioContext);
void MuteAudioContexts();
void UnmuteAudioContexts();
void SetAudioCapture(bool aCapture);
/**
* Associate this inner window with a MediaKeys instance.
*/
void AddMediaKeysInstance(mozilla::dom::MediaKeys* aMediaKeysInstance);
/**
* Remove an association between this inner window and a MediaKeys instance.
*/
void RemoveMediaKeysInstance(mozilla::dom::MediaKeys* aMediaKeysInstance);
/**
* Return if any MediaKeys instances are associated with this window.
*/
bool HasActiveMediaKeysInstance();
mozilla::dom::Performance* GetPerformance();
void QueuePerformanceNavigationTiming();
bool HasMutationListeners(uint32_t aMutationEventType) const {
if (!mOuterWindow) {
NS_ERROR("HasMutationListeners() called on orphan inner window!");
return false;
}
return (mMutationBits & aMutationEventType) != 0;
}
void SetMutationListeners(uint32_t aType) {
if (!mOuterWindow) {
NS_ERROR("HasMutationListeners() called on orphan inner window!");
return;
}
mMutationBits |= aType;
}
/**
* Call this to check whether some node (this window, its document,
* or content in that document) has a mouseenter/leave event listener.
*/
bool HasMouseEnterLeaveEventListeners() const {
return mMayHaveMouseEnterLeaveEventListener;
}
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a mouseenter/leave event listener.
*/
void SetHasMouseEnterLeaveEventListeners() {
mMayHaveMouseEnterLeaveEventListener = true;
}
/**
* Call this to check whether some node (this window, its document,
* or content in that document) has a Pointerenter/leave event listener.
*/
bool HasPointerEnterLeaveEventListeners() const {
return mMayHavePointerEnterLeaveEventListener;
}
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a Pointerenter/leave event listener.
*/
void SetHasPointerEnterLeaveEventListeners() {
mMayHavePointerEnterLeaveEventListener = true;
}
/**
* Call this to check whether some node (this window, its document,
* or content in that document) has a beforeinput event listener.
* Returing false may be wrong if some nodes have come from another document
* with `Document.adoptNode`.
*/
bool HasBeforeInputEventListenersForTelemetry() const {
return mMayHaveBeforeInputEventListenerForTelemetry;
}
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a beforeinput event listener.
*/
void SetHasBeforeInputEventListenersForTelemetry() {
mMayHaveBeforeInputEventListenerForTelemetry = true;
}
/**
* Call this to check whether some node (The document, or content in the
* document) has been observed by web apps with a mutation observer.
* (i.e., `MutationObserver.observe()` called by chrome script and addon's
* script does not make this returns true).
* Returing false may be wrong if some nodes have come from another document
* with `Document.adoptNode`.
*/
bool MutationObserverHasObservedNodeForTelemetry() const {
return mMutationObserverHasObservedNodeForTelemetry;
}
/**
* Call this to indicate that some node (The document, or content in the
* document) is observed by web apps with a mutation observer.
*/
void SetMutationObserverHasObservedNodeForTelemetry() {
mMutationObserverHasObservedNodeForTelemetry = true;
}
// Sets the event for window.event. Does NOT take ownership, so
// the caller is responsible for clearing the event before the
// event gets deallocated. Pass nullptr to set window.event to
// undefined. Returns the previous value.
mozilla::dom::Event* SetEvent(mozilla::dom::Event* aEvent) {
mozilla::dom::Event* old = mEvent;
mEvent = aEvent;
return old;
}
/**
* Check whether this window is a secure context.
*/
bool IsSecureContext() const;
bool IsSecureContextIfOpenerIgnored() const;
// Calling suspend should prevent any asynchronous tasks from
// executing javascript for this window. This means setTimeout,
// requestAnimationFrame, and events should not be fired. Suspending
// a window maybe also suspends its children. Workers may
// continue to perform computations in the background. A window
// can have Suspend() called multiple times and will only resume after
// a matching number of Resume() calls.
void Suspend(bool aIncludeSubWindows = true);
void Resume(bool aIncludeSubWindows = true);
// Whether or not this window was suspended by the BrowserContextGroup
bool GetWasSuspendedByGroup() const { return mWasSuspendedByGroup; }
void SetWasSuspendedByGroup(bool aSuspended) {
mWasSuspendedByGroup = aSuspended;
}
// Apply the parent window's suspend, freeze, and modal state to the current
// window.
void SyncStateFromParentWindow();
/**
* Increment active peer connection count.
*/
void AddPeerConnection();
/**
* Decrement active peer connection count.
*/
void RemovePeerConnection();
/**
* Check whether the active peer connection count is non-zero.
*/
bool HasActivePeerConnections();
bool IsPlayingAudio();
bool IsDocumentLoaded() const;
mozilla::dom::TimeoutManager& TimeoutManager();
bool IsRunningTimeout();
// To cache top inner-window if available after constructed for tab-wised
// indexedDB counters.
void TryToCacheTopInnerWindow();
// Increase/Decrease the number of active IndexedDB databases for the
// decision making of timeout-throttling.
void UpdateActiveIndexedDBDatabaseCount(int32_t aDelta);
// Return true if there is any active IndexedDB databases which could block
// timeout-throttling.
bool HasActiveIndexedDBDatabases();
// Increase/Decrease the number of open WebSockets.
void UpdateWebSocketCount(int32_t aDelta);
// Return true if there are any open WebSockets that could block
// timeout-throttling.
bool HasOpenWebSockets() const;
mozilla::Maybe<mozilla::dom::ClientInfo> GetClientInfo() const;
mozilla::Maybe<mozilla::dom::ClientState> GetClientState() const;
mozilla::Maybe<mozilla::dom::ServiceWorkerDescriptor> GetController() const;
void SetCsp(nsIContentSecurityPolicy* aCsp);
void SetPreloadCsp(nsIContentSecurityPolicy* aPreloadCsp);
nsIContentSecurityPolicy* GetCsp();
void NoteCalledRegisterForServiceWorkerScope(const nsACString& aScope);
void NoteDOMContentLoaded();
virtual mozilla::dom::CustomElementRegistry* CustomElements() = 0;
// XXX: This is called on inner windows
virtual nsPIDOMWindowOuter* GetInProcessScriptableTop() = 0;
virtual nsPIDOMWindowOuter* GetInProcessScriptableParent() = 0;
virtual already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() = 0;
mozilla::dom::EventTarget* GetChromeEventHandler() const {
return mChromeEventHandler;
}
mozilla::dom::EventTarget* GetParentTarget() {
if (!mParentTarget) {
UpdateParentTarget();
}
return mParentTarget;
}
virtual void MaybeUpdateTouchState() {}
Document* GetExtantDoc() const { return mDoc; }
nsIURI* GetDocumentURI() const;
nsIURI* GetDocBaseURI() const;
Document* GetDoc() {
if (!mDoc) {
MaybeCreateDoc();
}
return mDoc;
}
mozilla::dom::WindowContext* GetWindowContext() const;
mozilla::dom::WindowGlobalChild* GetWindowGlobalChild() const {
return mWindowGlobalChild;
}
// Removes this inner window from the BFCache, if it is cached, and returns
// true if it was.
bool RemoveFromBFCacheSync();
// Determine if the window is suspended or frozen. Outer windows
// will forward this call to the inner window for convenience. If
// there is no inner window then the outer window is considered
// suspended and frozen by default.
virtual bool IsSuspended() const = 0;
virtual bool IsFrozen() const = 0;
// Fire any DOM notification events related to things that happened while
// the window was frozen.
virtual nsresult FireDelayedDOMEvents(bool aIncludeSubWindows) = 0;
/**
* Get the docshell in this window.
*/
inline nsIDocShell* GetDocShell() const;
/**
* Get the browsing context in this window.
*/
inline mozilla::dom::BrowsingContext* GetBrowsingContext() const;
/**
* Get the browsing context group this window belongs to.
*/
mozilla::dom::BrowsingContextGroup* GetBrowsingContextGroup() const;
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a paint event listener.
*/
void SetHasPaintEventListeners() { mMayHavePaintEventListener = true; }
/**
* Call this to check whether some node (this window, its document,
* or content in that document) has a paint event listener.
*/
bool HasPaintEventListeners() { return mMayHavePaintEventListener; }
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a touch event listener.
*/
void SetHasTouchEventListeners() {
if (!mMayHaveTouchEventListener) {
mMayHaveTouchEventListener = true;
MaybeUpdateTouchState();
}
}
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a selectionchange event listener.
*/
void SetHasSelectionChangeEventListeners() {
mMayHaveSelectionChangeEventListener = true;
}
/**
* Call this to check whether some node (this window, its document,
* or content in that document) has a selectionchange event listener.
*/
bool HasSelectionChangeEventListeners() const {
return mMayHaveSelectionChangeEventListener;
}
/**
* Call this to indicate that some node (this window, its document,
* or content in that document) has a select event listener of form controls.
*/
void SetHasFormSelectEventListeners() {
mMayHaveFormSelectEventListener = true;
}
/**
* Call this to check whether some node (this window, its document,
* or content in that document) has a select event listener of form controls.
*/
bool HasFormSelectEventListeners() const {
return mMayHaveFormSelectEventListener;
}
/*
* Get and set the currently focused element within the document. If
* aNeedsFocus is true, then set mNeedsFocus to true to indicate that a
* document focus event is needed.
*
* DO NOT CALL EITHER OF THESE METHODS DIRECTLY. USE THE FOCUS MANAGER
* INSTEAD.
*/
mozilla::dom::Element* GetFocusedElement() const {
return mFocusedElement.get();
}
virtual void SetFocusedElement(mozilla::dom::Element* aElement,
uint32_t aFocusMethod = 0,
bool aNeedsFocus = false) = 0;
bool UnknownFocusMethodShouldShowOutline() const {
return mUnknownFocusMethodShouldShowOutline;
}
/**
* Retrieves the method that was used to focus the current node.
*/
virtual uint32_t GetFocusMethod() = 0;
/*
* Tells the window that it now has focus or has lost focus, based on the
* state of aFocus. If this method returns true, then the document loaded
* in the window has never received a focus event and expects to receive
* one. If false is returned, the document has received a focus event before
* and should only receive one if the window is being focused.
*
* aFocusMethod may be set to one of the focus method constants in
* nsIFocusManager to indicate how focus was set.
*/
virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod) = 0;
/**
* Indicates that the window may now accept a document focus event. This
* should be called once a document has been loaded into the window.
*/
virtual void SetReadyForFocus() = 0;
/**
* Whether the focused content within the window should show a focus ring.
*/
virtual bool ShouldShowFocusRing() = 0;
/**
* Indicates that the page in the window has been hidden. This is used to
* reset the focus state.
*/
virtual void PageHidden() = 0;
/**
* Instructs this window to asynchronously dispatch a hashchange event. This
* method must be called on an inner window.
*/
virtual nsresult DispatchAsyncHashchange(nsIURI* aOldURI,
nsIURI* aNewURI) = 0;
/**
* Instructs this window to synchronously dispatch a popState event.
*/
virtual nsresult DispatchSyncPopState() = 0;
/**
* Tell this window that it should listen for sensor changes of the given
* type.
*/
virtual void EnableDeviceSensor(uint32_t aType) = 0;
/**
* Tell this window that it should remove itself from sensor change
* notifications.
*/
virtual void DisableDeviceSensor(uint32_t aType) = 0;
#if defined(MOZ_WIDGET_ANDROID)
virtual void EnableOrientationChangeListener() = 0;
virtual void DisableOrientationChangeListener() = 0;
#endif
/**
* Tell this window that there is an observer for gamepad input
*
* Inner windows only.
*/
virtual void SetHasGamepadEventListener(bool aHasGamepad = true) = 0;
/**
* Return the window id of this window
*/
uint64_t WindowID() const { return mWindowID; }
// WebIDL-ish APIs
void MarkUncollectableForCCGeneration(uint32_t aGeneration) {
mMarkedCCGeneration = aGeneration;
}
uint32_t GetMarkedCCGeneration() { return mMarkedCCGeneration; }
mozilla::dom::Navigator* Navigator();
mozilla::dom::MediaDevices* GetExtantMediaDevices() const;
virtual mozilla::dom::Location* Location() = 0;
virtual nsresult GetControllers(nsIControllers** aControllers) = 0;
virtual nsresult GetInnerWidth(double* aWidth) = 0;
virtual nsresult GetInnerHeight(double* aHeight) = 0;
virtual already_AddRefed<nsICSSDeclaration> GetComputedStyle(
mozilla::dom::Element& aElt, const nsAString& aPseudoElt,
mozilla::ErrorResult& aError) = 0;
virtual nsDOMOfflineResourceList* GetApplicationCache() = 0;
virtual bool GetFullScreen() = 0;
virtual nsresult Focus(mozilla::dom::CallerType aCallerType) = 0;
virtual nsresult Close() = 0;
mozilla::dom::DocGroup* GetDocGroup() const;
virtual nsISerialEventTarget* EventTargetFor(
mozilla::TaskCategory aCategory) const = 0;
void SaveStorageAccessPermissionGranted();
bool HasStorageAccessPermissionGranted();
uint32_t UpdateLockCount(bool aIncrement) {
MOZ_ASSERT_IF(!aIncrement, mLockCount > 0);
mLockCount += aIncrement ? 1 : -1;
return mLockCount;
};
bool HasActiveLocks() { return mLockCount > 0; }
protected:
void CreatePerformanceObjectIfNeeded();
// Lazily instantiate an about:blank document if necessary, and if
// we have what it takes to do so.
void MaybeCreateDoc();
void SetChromeEventHandlerInternal(
mozilla::dom::EventTarget* aChromeEventHandler) {
mChromeEventHandler = aChromeEventHandler;
// mParentTarget will be set when the next event is dispatched.
mParentTarget = nullptr;
}
virtual void UpdateParentTarget() = 0;
// These two variables are special in that they're set to the same
// value on both the outer window and the current inner window. Make
// sure you keep them in sync!
nsCOMPtr<mozilla::dom::EventTarget> mChromeEventHandler; // strong
RefPtr<Document> mDoc;
// Cache the URI when mDoc is cleared.
nsCOMPtr<nsIURI> mDocumentURI; // strong
nsCOMPtr<nsIURI> mDocBaseURI; // strong
nsCOMPtr<mozilla::dom::EventTarget> mParentTarget; // strong
RefPtr<mozilla::dom::Performance> mPerformance;
mozilla::UniquePtr<mozilla::dom::TimeoutManager> mTimeoutManager;
RefPtr<mozilla::dom::Navigator> mNavigator;
// These variables are only used on inner windows.
uint32_t mMutationBits;
uint32_t mActivePeerConnections = 0;
bool mIsDocumentLoaded;
bool mIsHandlingResizeEvent;
bool mMayHavePaintEventListener;
bool mMayHaveTouchEventListener;
bool mMayHaveSelectionChangeEventListener;
bool mMayHaveFormSelectEventListener;
bool mMayHaveMouseEnterLeaveEventListener;
bool mMayHavePointerEnterLeaveEventListener;
// Only used for telemetry probes. This may be wrong if some nodes have
// come from another document with `Document.adoptNode`.
bool mMayHaveBeforeInputEventListenerForTelemetry;
bool mMutationObserverHasObservedNodeForTelemetry;
// Our inner window's outer window.
nsCOMPtr<nsPIDOMWindowOuter> mOuterWindow;
// The element within the document that is currently focused when this
// window is active.
RefPtr<mozilla::dom::Element> mFocusedElement;
// The AudioContexts created for the current document, if any.
nsTArray<mozilla::dom::AudioContext*> mAudioContexts; // Weak
// Instances of MediaKeys created in this inner window. Storing these allows
// us to shutdown MediaKeys when an inner windows is destroyed. We can also
// use the presence of MediaKeys to assess if a window has EME activity.
nsTArray<mozilla::dom::MediaKeys*> mMediaKeysInstances; // Weak
RefPtr<mozilla::dom::BrowsingContext> mBrowsingContext;
// A unique (as long as our 64-bit counter doesn't roll over) id for
// this window.
uint64_t mWindowID;
// Set to true once we've sent the (chrome|content)-document-global-created
// notification.
bool mHasNotifiedGlobalCreated;
// Whether when focused via an "unknown" focus method, we should show outlines
// by default or not. The initial value of this is true (so as to show
// outlines for stuff like html autofocus, or initial programmatic focus
// without any other user interaction).
bool mUnknownFocusMethodShouldShowOutline = true;
uint32_t mMarkedCCGeneration;
// mTopInnerWindow is used for tab-wise check by timeout throttling. It could
// be null.
nsCOMPtr<nsPIDOMWindowInner> mTopInnerWindow;
// The evidence that we have tried to cache mTopInnerWindow only once from
// SetNewDocument(). Note: We need this extra flag because mTopInnerWindow
// could be null and we don't want it to be set multiple times.
bool mHasTriedToCacheTopInnerWindow;
// The number of active IndexedDB databases.
uint32_t mNumOfIndexedDBDatabases;
// The number of open WebSockets.
uint32_t mNumOfOpenWebSockets;
// The event dispatch code sets and unsets this while keeping
// the event object alive.
mozilla::dom::Event* mEvent;
// A boolean flag indicating whether storage access is granted for the
// current window. These are also set as permissions, but it could happen
// that we need to access them synchronously in this context, and for
// this, we need a copy here.
bool mStorageAccessPermissionGranted;
// The WindowGlobalChild actor for this window.
//
// This will be non-null during the full lifetime of the window, initialized
// during SetNewDocument, and cleared during FreeInnerObjects.
RefPtr<mozilla::dom::WindowGlobalChild> mWindowGlobalChild;
bool mWasSuspendedByGroup;
/**
* Count of the number of active LockRequest objects, including ones from
* workers.
*/
uint32_t mLockCount = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsPIDOMWindowInner, NS_PIDOMWINDOWINNER_IID)
class nsPIDOMWindowOuter : public mozIDOMWindowProxy {
protected:
using Document = mozilla::dom::Document;
explicit nsPIDOMWindowOuter(uint64_t aWindowID);
~nsPIDOMWindowOuter();
void NotifyResumingDelayedMedia();
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_PIDOMWINDOWOUTER_IID)
NS_IMPL_FROMEVENTTARGET_HELPER_WITH_GETTER(nsPIDOMWindowOuter,
GetAsWindowOuter())
static nsPIDOMWindowOuter* From(mozIDOMWindowProxy* aFrom) {
return static_cast<nsPIDOMWindowOuter*>(aFrom);
}
// Given an inner window, return its outer if the inner is the current inner.
// Otherwise (argument null or not an inner or not current) return null.
static nsPIDOMWindowOuter* GetFromCurrentInner(nsPIDOMWindowInner* aInner);
// Check whether a document is currently loading
inline bool IsLoading() const;
inline bool IsHandlingResizeEvent() const;
nsPIDOMWindowInner* GetCurrentInnerWindow() const { return mInnerWindow; }
nsPIDOMWindowInner* EnsureInnerWindow() {
// GetDoc forces inner window creation if there isn't one already
GetDoc();
return GetCurrentInnerWindow();
}
bool IsRootOuterWindow() { return mIsRootOuterWindow; }
/**
* Set initial keyboard indicator state for focus rings.
*/
void SetInitialKeyboardIndicators(UIStateChangeType aShowFocusRings);
// Internal getter/setter for the frame element, this version of the
// getter crosses chrome boundaries whereas the public scriptable
// one doesn't for security reasons.
mozilla::dom::Element* GetFrameElementInternal() const;
void SetFrameElementInternal(mozilla::dom::Element* aFrameElement);
void SetDesktopModeViewport(bool aDesktopModeViewport) {
mDesktopModeViewport = aDesktopModeViewport;
}
bool IsDesktopModeViewport() const { return mDesktopModeViewport; }
bool IsBackground() { return mIsBackground; }
// Audio API
bool GetAudioMuted() const;
// No longer to delay media from starting for this window.
void ActivateMediaComponents();
bool ShouldDelayMediaFromStart() const;
void RefreshMediaElementsVolume();
virtual nsPIDOMWindowOuter* GetPrivateRoot() = 0;
/**
* |top| gets the root of the window hierarchy.
*
* This function does not cross chrome-content boundaries, so if this
* window's parent is of a different type, |top| will return this window.
*
* When script reads the top property, we run GetInProcessScriptableTop,
* which will not cross an <iframe mozbrowser> boundary.
*
* In contrast, C++ calls to GetTop are forwarded to GetRealTop, which
* ignores <iframe mozbrowser> boundaries.
*/
virtual already_AddRefed<nsPIDOMWindowOuter>
GetInProcessTop() = 0; // Outer only
virtual already_AddRefed<nsPIDOMWindowOuter> GetInProcessParent() = 0;
virtual nsPIDOMWindowOuter* GetInProcessScriptableTop() = 0;
virtual nsPIDOMWindowOuter* GetInProcessScriptableParent() = 0;
virtual already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() = 0;
/**
* Behaves identically to GetInProcessScriptableParent except that it
* returns null if GetInProcessScriptableParent would return this window.
*/
virtual nsPIDOMWindowOuter* GetInProcessScriptableParentOrNull() = 0;
virtual void SetIsBackground(bool aIsBackground) = 0;
mozilla::dom::EventTarget* GetChromeEventHandler() const {
return mChromeEventHandler;
}
virtual void SetChromeEventHandler(
mozilla::dom::EventTarget* aChromeEventHandler) = 0;
mozilla::dom::EventTarget* GetParentTarget() {
if (!mParentTarget) {
UpdateParentTarget();
}
return mParentTarget;
}
mozilla::dom::ContentFrameMessageManager* GetMessageManager() {
// We maintain our mMessageManager state alongside mParentTarget.
if (!mParentTarget) {
UpdateParentTarget();
}
return mMessageManager;
}
Document* GetExtantDoc() const { return mDoc; }
nsIURI* GetDocumentURI() const;
Document* GetDoc() {
if (!mDoc) {
MaybeCreateDoc();
}
return mDoc;
}
// Set the window up with an about:blank document with the current subject
// principal and potentially a CSP and a COEP.
virtual void SetInitialPrincipalToSubject(
nsIContentSecurityPolicy* aCSP,
const mozilla::Maybe<nsILoadInfo::CrossOriginEmbedderPolicy>& aCoep) = 0;
// Returns an object containing the window's state. This also suspends
// all running timeouts in the window.
virtual already_AddRefed<nsISupports> SaveWindowState() = 0;
// Restore the window state from aState.
virtual nsresult RestoreWindowState(nsISupports* aState) = 0;
// Determine if the window is suspended or frozen. Outer windows
// will forward this call to the inner window for convenience. If
// there is no inner window then the outer window is considered
// suspended and frozen by default.
virtual bool IsSuspended() const = 0;
virtual bool IsFrozen() const = 0;
// Fire any DOM notification events related to things that happened while
// the window was frozen.
virtual nsresult FireDelayedDOMEvents(bool aIncludeSubWindows) = 0;
/**
* Get the docshell in this window.
*/
inline nsIDocShell* GetDocShell() const;
/**
* Get the browsing context in this window.
*/
inline mozilla::dom::BrowsingContext* GetBrowsingContext() const;
/**
* Get the browsing context group this window belongs to.
*/
mozilla::dom::BrowsingContextGroup* GetBrowsingContextGroup() const;
/**
* Set a new document in the window. Calling this method will in most cases
* create a new inner window. This may be called with a pointer to the current
* document, in that case the document remains unchanged, but a new inner
* window will be created.
*
* aDocument must not be null.
*/
virtual nsresult SetNewDocument(
Document* aDocument, nsISupports* aState, bool aForceReuseInnerWindow,
mozilla::dom::WindowGlobalChild* aActor = nullptr) = 0;
/**
* Ensure the size and position of this window are up-to-date by doing
* a layout flush in the parent (which will in turn, do a layout flush
* in its parent, etc.).
*/
virtual void EnsureSizeAndPositionUpToDate() = 0;
/**
* Suppresses/unsuppresses user initiated event handling in window's document
* and all in-process descendant documents.
*/
virtual void SuppressEventHandling() = 0;
virtual void UnsuppressEventHandling() = 0;
/**
* Callback for notifying a window about a modal dialog being
* opened/closed with the window as a parent.
*
* If any script can run between the enter and leave modal states, and the
* window isn't top, the LeaveModalState() should be called on the window
* returned by EnterModalState().
*/
virtual nsPIDOMWindowOuter* EnterModalState() = 0;
virtual void LeaveModalState() = 0;
virtual bool CanClose() = 0;
virtual void ForceClose() = 0;
/**
* Moves the top-level window into fullscreen mode if aIsFullScreen is true,
* otherwise exits fullscreen.
*/
virtual nsresult SetFullscreenInternal(FullscreenReason aReason,
bool aIsFullscreen) = 0;
virtual void FullscreenWillChange(bool aIsFullscreen) = 0;
/**
* This function should be called when the fullscreen state is flipped.
* If no widget is involved the fullscreen change, this method is called
* by SetFullscreenInternal, otherwise, it is called when the widget
* finishes its change to or from fullscreen.
*
* @param aIsFullscreen indicates whether the widget is in fullscreen.
*/
virtual void FinishFullscreenChange(bool aIsFullscreen) = 0;
virtual void ForceFullScreenInWidget() = 0;
virtual void MacFullscreenMenubarOverlapChanged(
mozilla::DesktopCoord aOverlapAmount) = 0;
// XXX: These focus methods all forward to the inner, could we change
// consumers to call these on the inner directly?
/*
* Get and set the currently focused element within the document. If
* aNeedsFocus is true, then set mNeedsFocus to true to indicate that a
* document focus event is needed.
*
* DO NOT CALL EITHER OF THESE METHODS DIRECTLY. USE THE FOCUS MANAGER
* INSTEAD.
*/
inline mozilla::dom::Element* GetFocusedElement() const;
virtual void SetFocusedElement(mozilla::dom::Element* aElement,
uint32_t aFocusMethod = 0,
bool aNeedsFocus = false) = 0;
/**
* Get whether a focused element focused by unknown reasons (like script
* focus) should match the :focus-visible pseudo-class.
*/
bool UnknownFocusMethodShouldShowOutline() const;
/**
* Retrieves the method that was used to focus the current node.
*/
virtual uint32_t GetFocusMethod() = 0;
/*
* Tells the window that it now has focus or has lost focus, based on the
* state of aFocus. If this method returns true, then the document loaded
* in the window has never received a focus event and expects to receive
* one. If false is returned, the document has received a focus event before
* and should only receive one if the window is being focused.
*
* aFocusMethod may be set to one of the focus method constants in
* nsIFocusManager to indicate how focus was set.
*/
virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod) = 0;
/**
* Indicates that the window may now accept a document focus event. This
* should be called once a document has been loaded into the window.
*/
virtual void SetReadyForFocus() = 0;
/**
* Whether the focused content within the window should show a focus ring.
*/
virtual bool ShouldShowFocusRing() = 0;
/**
* Set the keyboard indicator state for accelerators and focus rings.
*/
virtual void SetKeyboardIndicators(UIStateChangeType aShowFocusRings) = 0;
/**
* Indicates that the page in the window has been hidden. This is used to
* reset the focus state.
*/
virtual void PageHidden() = 0;
/**
* Return the window id of this window
*/
uint64_t WindowID() const { return mWindowID; }
/**
* Dispatch a custom event with name aEventName targeted at this window.
* Returns whether the default action should be performed.
*
* Outer windows only.
*/
virtual bool DispatchCustomEvent(
const nsAString& aEventName,
mozilla::ChromeOnlyDispatch aChromeOnlyDispatch =
mozilla::ChromeOnlyDispatch::eNo) = 0;
/**
* Like nsIDOMWindow::Open, except that we don't navigate to the given URL.
*
* Outer windows only.
*/
virtual nsresult OpenNoNavigate(const nsAString& aUrl, const nsAString& aName,
const nsAString& aOptions,
mozilla::dom::BrowsingContext** _retval) = 0;
/**
* Fire a popup blocked event on the document.
*/
virtual void FirePopupBlockedEvent(Document* aDoc, nsIURI* aPopupURI,
const nsAString& aPopupWindowName,
const nsAString& aPopupWindowFeatures) = 0;
// WebIDL-ish APIs
void MarkUncollectableForCCGeneration(uint32_t aGeneration) {
mMarkedCCGeneration = aGeneration;
}
uint32_t GetMarkedCCGeneration() { return mMarkedCCGeneration; }
// XXX(nika): These feel like they should be inner window only, but they're
// called on the outer window.
virtual mozilla::dom::Navigator* GetNavigator() = 0;
virtual mozilla::dom::Location* GetLocation() = 0;
virtual nsresult GetPrompter(nsIPrompt** aPrompt) = 0;
virtual nsresult GetControllers(nsIControllers** aControllers) = 0;
virtual already_AddRefed<mozilla::dom::Selection> GetSelection() = 0;
virtual mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder>
GetOpener() = 0;
// aLoadState will be passed on through to the windowwatcher.
// aForceNoOpener will act just like a "noopener" feature in aOptions except
// will not affect any other window features.
virtual nsresult Open(const nsAString& aUrl, const nsAString& aName,
const nsAString& aOptions,
nsDocShellLoadState* aLoadState, bool aForceNoOpener,
mozilla::dom::BrowsingContext** _retval) = 0;
virtual nsresult OpenDialog(const nsAString& aUrl, const nsAString& aName,
const nsAString& aOptions,
nsISupports* aExtraArgument,
mozilla::dom::BrowsingContext** _retval) = 0;
virtual nsresult GetInnerWidth(double* aWidth) = 0;
virtual nsresult GetInnerHeight(double* aHeight) = 0;
virtual mozilla::dom::Element* GetFrameElement() = 0;
virtual bool Closed() = 0;
virtual bool GetFullScreen() = 0;
virtual nsresult SetFullScreen(bool aFullscreen) = 0;
virtual nsresult Focus(mozilla::dom::CallerType aCallerType) = 0;
virtual nsresult Close() = 0;
virtual nsresult MoveBy(int32_t aXDif, int32_t aYDif) = 0;
virtual void UpdateCommands(const nsAString& anAction,
mozilla::dom::Selection* aSel,
int16_t aReason) = 0;
mozilla::dom::DocGroup* GetDocGroup() const;
virtual nsISerialEventTarget* EventTargetFor(
mozilla::TaskCategory aCategory) const = 0;
already_AddRefed<nsIDocShellTreeOwner> GetTreeOwner();
already_AddRefed<nsIBaseWindow> GetTreeOwnerWindow();
already_AddRefed<nsIWebBrowserChrome> GetWebBrowserChrome();
protected:
// Lazily instantiate an about:blank document if necessary, and if
// we have what it takes to do so.
void MaybeCreateDoc();
void SetChromeEventHandlerInternal(
mozilla::dom::EventTarget* aChromeEventHandler);
virtual void UpdateParentTarget() = 0;
// These two variables are special in that they're set to the same
// value on both the outer window and the current inner window. Make
// sure you keep them in sync!
nsCOMPtr<mozilla::dom::EventTarget> mChromeEventHandler; // strong
RefPtr<Document> mDoc;
// Cache the URI when mDoc is cleared.
nsCOMPtr<nsIURI> mDocumentURI; // strong
nsCOMPtr<mozilla::dom::EventTarget> mParentTarget; // strong
RefPtr<mozilla::dom::ContentFrameMessageManager> mMessageManager; // strong
nsCOMPtr<mozilla::dom::Element> mFrameElement;
// These references are used by nsGlobalWindow.
nsCOMPtr<nsIDocShell> mDocShell;
RefPtr<mozilla::dom::BrowsingContext> mBrowsingContext;
uint32_t mModalStateDepth;
uint32_t mSuppressEventHandlingDepth;
// Tracks whether our docshell is active. If it is, mIsBackground
// is false. Too bad we have so many different concepts of
// "active".
bool mIsBackground;
// current desktop mode flag.
bool mDesktopModeViewport;
bool mIsRootOuterWindow;
// And these are the references between inner and outer windows.
nsPIDOMWindowInner* MOZ_NON_OWNING_REF mInnerWindow;
// A unique (as long as our 64-bit counter doesn't roll over) id for
// this window.
uint64_t mWindowID;
uint32_t mMarkedCCGeneration;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsPIDOMWindowOuter, NS_PIDOMWINDOWOUTER_IID)
#include "nsPIDOMWindowInlines.h"
#endif // nsPIDOMWindow_h__