https://github.com/mozilla/gecko-dev
Tip revision: 4c3fe34f7f0e09fa0dc597e29b52629ad0d4164a authored by Dustin J. Mitchell on 23 August 2019, 12:32:02 UTC
Bug 1562686 - revert remaining unnecessary bit of bug 1187245; r=glandium a=tomprince
Bug 1562686 - revert remaining unnecessary bit of bug 1187245; r=glandium a=tomprince
Tip revision: 4c3fe34
nsGlobalWindowInner.cpp
/* -*- 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 "nsGlobalWindow.h"
#include <algorithm>
#include "mozilla/MemoryReporting.h"
// Local Includes
#include "Navigator.h"
#include "nsContentSecurityManager.h"
#include "nsScreen.h"
#include "nsHistory.h"
#include "nsDOMNavigationTiming.h"
#include "nsIDOMStorageManager.h"
#include "mozilla/dom/ContentFrameMessageManager.h"
#include "mozilla/dom/DocumentInlines.h"
#include "mozilla/dom/DOMJSProxyHandler.h"
#include "mozilla/dom/DOMPrefs.h"
#include "mozilla/dom/EventTarget.h"
#include "mozilla/dom/LocalStorage.h"
#include "mozilla/dom/LocalStorageCommon.h"
#include "mozilla/dom/LSObject.h"
#include "mozilla/dom/PartitionedLocalStorage.h"
#include "mozilla/dom/Storage.h"
#include "mozilla/dom/IdleRequest.h"
#include "mozilla/dom/Performance.h"
#include "mozilla/dom/StorageEvent.h"
#include "mozilla/dom/StorageEventBinding.h"
#include "mozilla/dom/StorageNotifierService.h"
#include "mozilla/dom/StorageUtils.h"
#include "mozilla/dom/Timeout.h"
#include "mozilla/dom/TimeoutHandler.h"
#include "mozilla/dom/TimeoutManager.h"
#include "mozilla/dom/VisualViewport.h"
#include "mozilla/dom/WindowProxyHolder.h"
#include "mozilla/IntegerPrintfMacros.h"
#if defined(MOZ_WIDGET_ANDROID)
# include "mozilla/dom/WindowOrientationObserver.h"
#endif
#include "nsDOMOfflineResourceList.h"
#include "nsError.h"
#include "nsISizeOfEventTarget.h"
#include "nsDOMJSUtils.h"
#include "nsArrayUtils.h"
#include "nsDOMWindowList.h"
#include "mozilla/dom/WakeLock.h"
#include "mozilla/dom/power/PowerManagerService.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocumentLoader.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIPermission.h"
#include "nsIPermissionManager.h"
#include "nsIScriptContext.h"
#include "nsIScriptTimeoutHandler.h"
#include "nsITimeoutHandler.h"
#include "nsIController.h"
#include "nsISlowScriptDebug.h"
#include "nsWindowMemoryReporter.h"
#include "nsWindowSizes.h"
#include "WindowNamedPropertiesHandler.h"
#include "nsFrameSelection.h"
#include "nsNetUtil.h"
#include "nsVariant.h"
#include "nsPrintfCString.h"
#include "mozilla/intl/LocaleService.h"
#include "WindowDestroyedEvent.h"
// Helper Classes
#include "nsJSUtils.h"
#include "jsapi.h"
#include "js/Warnings.h" // JS::WarnASCII
#include "js/Wrapper.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsReadableUtils.h"
#include "nsJSEnvironment.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/Preferences.h"
#include "mozilla/Likely.h"
#include "mozilla/Sprintf.h"
#include "mozilla/Unused.h"
// Other Classes
#include "mozilla/dom/BarProps.h"
#include "nsContentCID.h"
#include "nsLayoutStatics.h"
#include "nsCCUncollectableMarker.h"
#include "mozilla/dom/WorkerCommon.h"
#include "mozilla/dom/ToJSValue.h"
#include "nsJSPrincipals.h"
#include "mozilla/Attributes.h"
#include "mozilla/Debug.h"
#include "mozilla/EventListenerManager.h"
#include "mozilla/EventStates.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/PresShell.h"
#include "mozilla/ProcessHangMonitor.h"
#include "mozilla/ScrollTypes.h"
#include "mozilla/ThrottledEventQueue.h"
#include "AudioChannelService.h"
#include "nsAboutProtocolUtils.h"
#include "nsCharTraits.h" // NS_IS_HIGH/LOW_SURROGATE
#include "PostMessageEvent.h"
#include "mozilla/dom/DocGroup.h"
#include "mozilla/dom/TabGroup.h"
#include "mozilla/StaticPrefs.h"
#include "PaintWorkletImpl.h"
// Interfaces Needed
#include "nsIFrame.h"
#include "nsCanvasFrame.h"
#include "nsIWidget.h"
#include "nsIWidgetListener.h"
#include "nsIBaseWindow.h"
#include "nsIDeviceSensors.h"
#include "nsIContent.h"
#include "nsIDocShell.h"
#include "mozilla/dom/Document.h"
#include "Crypto.h"
#include "nsDOMString.h"
#include "nsIEmbeddingSiteWindow.h"
#include "nsThreadUtils.h"
#include "nsILoadContext.h"
#include "nsIScrollableFrame.h"
#include "nsView.h"
#include "nsViewManager.h"
#include "nsISelectionController.h"
#include "nsIPrompt.h"
#include "nsIPromptService.h"
#include "nsIPromptFactory.h"
#include "nsIAddonPolicyService.h"
#include "nsIWritablePropertyBag2.h"
#include "nsIWebNavigation.h"
#include "nsIWebBrowserChrome.h"
#include "nsIWebBrowserFind.h" // For window.find()
#include "nsIWindowMediator.h" // For window.find()
#include "nsDOMCID.h"
#include "nsDOMWindowUtils.h"
#include "nsIWindowWatcher.h"
#include "nsPIWindowWatcher.h"
#include "nsIContentViewer.h"
#include "nsIScriptError.h"
#include "nsIControllers.h"
#include "nsGlobalWindowCommands.h"
#include "nsQueryObject.h"
#include "nsContentUtils.h"
#include "nsCSSProps.h"
#include "nsIURIFixup.h"
#include "mozilla/EventDispatcher.h"
#include "mozilla/EventStateManager.h"
#include "nsIObserverService.h"
#include "nsFocusManager.h"
#include "nsIXULWindow.h"
#include "nsITimedChannel.h"
#include "nsServiceManagerUtils.h"
#ifdef MOZ_XUL
# include "nsIDOMXULControlElement.h"
# include "nsMenuPopupFrame.h"
#endif
#include "mozilla/dom/CustomEvent.h"
#include "nsIJARChannel.h"
#include "nsIScreenManager.h"
#include "nsIEffectiveTLDService.h"
#include "nsICSSDeclaration.h"
#include "xpcprivate.h"
#ifdef NS_PRINTING
# include "nsIPrintSettings.h"
# include "nsIPrintSettingsService.h"
# include "nsIWebBrowserPrint.h"
#endif
#include "nsWindowRoot.h"
#include "nsNetCID.h"
#include "nsIArray.h"
#include "nsBindingManager.h"
#include "nsXBLService.h"
#include "nsIDragService.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/Selection.h"
#include "nsFrameLoader.h"
#include "nsISupportsPrimitives.h"
#include "nsXPCOMCID.h"
#include "mozilla/Logging.h"
#include "prenv.h"
#include "mozilla/dom/IDBFactory.h"
#include "mozilla/dom/MessageChannel.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/Gamepad.h"
#include "mozilla/dom/GamepadManager.h"
#include "gfxVR.h"
#include "mozilla/dom/VRDisplay.h"
#include "mozilla/dom/VRDisplayEvent.h"
#include "mozilla/dom/VRDisplayEventBinding.h"
#include "mozilla/dom/VREventObserver.h"
#include "nsRefreshDriver.h"
#include "Layers.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/Services.h"
#include "mozilla/Telemetry.h"
#include "mozilla/dom/Location.h"
#include "nsHTMLDocument.h"
#include "nsWrapperCacheInlines.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "prrng.h"
#include "nsSandboxFlags.h"
#include "mozilla/dom/AudioContext.h"
#include "mozilla/dom/BrowserElementDictionariesBinding.h"
#include "mozilla/dom/cache/CacheStorage.h"
#include "mozilla/dom/Console.h"
#include "mozilla/dom/Fetch.h"
#include "mozilla/dom/FunctionBinding.h"
#include "mozilla/dom/HashChangeEvent.h"
#include "mozilla/dom/IntlUtils.h"
#include "mozilla/dom/PopStateEvent.h"
#include "mozilla/dom/PopupBlocker.h"
#include "mozilla/dom/PopupBlockedEvent.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/WindowBinding.h"
#include "nsIBrowserChild.h"
#include "mozilla/dom/LoadedScript.h"
#include "mozilla/dom/MediaQueryList.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/NavigatorBinding.h"
#include "mozilla/dom/ImageBitmap.h"
#include "mozilla/dom/ImageBitmapBinding.h"
#include "mozilla/dom/InstallTriggerBinding.h"
#include "mozilla/dom/Report.h"
#include "mozilla/dom/ReportingObserver.h"
#include "mozilla/dom/SharedWorker.h"
#include "mozilla/dom/ServiceWorker.h"
#include "mozilla/dom/ServiceWorkerRegistration.h"
#include "mozilla/dom/ServiceWorkerRegistrationDescriptor.h"
#include "mozilla/dom/U2F.h"
#include "mozilla/dom/WebIDLGlobalNameHash.h"
#include "mozilla/dom/Worklet.h"
#ifdef HAVE_SIDEBAR
# include "mozilla/dom/ExternalBinding.h"
#endif
#ifdef MOZ_WEBSPEECH
# include "mozilla/dom/SpeechSynthesis.h"
#endif
#include "mozilla/dom/ClientManager.h"
#include "mozilla/dom/ClientSource.h"
#include "mozilla/dom/ClientState.h"
#include "mozilla/dom/WindowGlobalChild.h"
// Apple system headers seem to have a check() macro. <sigh>
#ifdef check
class nsIScriptTimeoutHandler;
# undef check
#endif // check
#include "AccessCheck.h"
#ifdef ANDROID
# include <android/log.h>
#endif
#ifdef XP_WIN
# include <process.h>
# define getpid _getpid
#else
# include <unistd.h> // for getpid()
#endif
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::dom::ipc;
using mozilla::TimeDuration;
using mozilla::TimeStamp;
using mozilla::dom::cache::CacheStorage;
#define FORWARD_TO_OUTER(method, args, err_rval) \
PR_BEGIN_MACRO \
nsGlobalWindowOuter* outer = GetOuterWindowInternal(); \
if (!HasActiveDocument()) { \
NS_WARNING(outer ? "Inner window does not have active document." \
: "No outer window available!"); \
return err_rval; \
} \
return outer->method args; \
PR_END_MACRO
static nsGlobalWindowOuter* GetOuterWindowForForwarding(
nsGlobalWindowInner* aInner, ErrorResult& aError) {
nsGlobalWindowOuter* outer = aInner->GetOuterWindowInternal();
if (MOZ_LIKELY(aInner->HasActiveDocument())) {
return outer;
}
if (!outer) {
NS_WARNING("No outer window available!");
aError.Throw(NS_ERROR_NOT_INITIALIZED);
} else {
aError.Throw(NS_ERROR_XPC_SECURITY_MANAGER_VETO);
}
return nullptr;
}
#define FORWARD_TO_OUTER_OR_THROW(method, args, errorresult, err_rval) \
PR_BEGIN_MACRO \
nsGlobalWindowOuter* outer = GetOuterWindowForForwarding(this, errorresult); \
if (MOZ_LIKELY(outer)) { \
return outer->method args; \
} \
return err_rval; \
PR_END_MACRO
#define FORWARD_TO_OUTER_VOID(method, args) \
PR_BEGIN_MACRO \
nsGlobalWindowOuter* outer = GetOuterWindowInternal(); \
if (!HasActiveDocument()) { \
NS_WARNING(outer ? "Inner window does not have active document." \
: "No outer window available!"); \
return; \
} \
outer->method args; \
return; \
PR_END_MACRO
#define DOM_TOUCH_LISTENER_ADDED "dom-touch-listener-added"
#define MEMORY_PRESSURE_OBSERVER_TOPIC "memory-pressure"
// Amount of time allowed between alert/prompt/confirm before enabling
// the stop dialog checkbox.
#define DEFAULT_SUCCESSIVE_DIALOG_TIME_LIMIT 3 // 3 sec
// Maximum number of successive dialogs before we prompt users to disable
// dialogs for this window.
#define MAX_SUCCESSIVE_DIALOG_COUNT 5
// Max number of Report objects
#define MAX_REPORT_RECORDS 100
static LazyLogModule gDOMLeakPRLogInner("DOMLeakInner");
static FILE* gDumpFile = nullptr;
nsGlobalWindowInner::InnerWindowByIdTable*
nsGlobalWindowInner::sInnerWindowsById = nullptr;
bool nsGlobalWindowInner::sDragServiceDisabled = false;
bool nsGlobalWindowInner::sMouseDown = false;
/**
* An indirect observer object that means we don't have to implement nsIObserver
* on nsGlobalWindow, where any script could see it.
*/
class nsGlobalWindowObserver final : public nsIObserver,
public nsIInterfaceRequestor,
public StorageNotificationObserver {
public:
explicit nsGlobalWindowObserver(nsGlobalWindowInner* aWindow)
: mWindow(aWindow) {}
NS_DECL_ISUPPORTS
NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) override {
if (!mWindow) return NS_OK;
return mWindow->Observe(aSubject, aTopic, aData);
}
void Forget() { mWindow = nullptr; }
NS_IMETHOD GetInterface(const nsIID& aIID, void** aResult) override {
if (mWindow && aIID.Equals(NS_GET_IID(nsIDOMWindow)) && mWindow) {
return mWindow->QueryInterface(aIID, aResult);
}
return NS_NOINTERFACE;
}
void ObserveStorageNotification(StorageEvent* aEvent,
const char16_t* aStorageType,
bool aPrivateBrowsing) override {
if (mWindow) {
mWindow->ObserveStorageNotification(aEvent, aStorageType,
aPrivateBrowsing);
}
}
nsIPrincipal* GetEffectiveStoragePrincipal() const override {
return mWindow ? mWindow->GetEffectiveStoragePrincipal() : nullptr;
}
bool IsPrivateBrowsing() const override {
return mWindow ? mWindow->IsPrivateBrowsing() : false;
}
nsIEventTarget* GetEventTarget() const override {
return mWindow ? mWindow->EventTargetFor(TaskCategory::Other) : nullptr;
}
private:
~nsGlobalWindowObserver() = default;
// This reference is non-owning and safe because it's cleared by
// nsGlobalWindowInner::FreeInnerObjects().
nsGlobalWindowInner* MOZ_NON_OWNING_REF mWindow;
};
NS_IMPL_ISUPPORTS(nsGlobalWindowObserver, nsIObserver, nsIInterfaceRequestor)
class IdleRequestExecutor;
class IdleRequestExecutorTimeoutHandler final : public TimeoutHandler {
public:
explicit IdleRequestExecutorTimeoutHandler(IdleRequestExecutor* aExecutor)
: mExecutor(aExecutor) {}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IdleRequestExecutorTimeoutHandler,
TimeoutHandler)
void Call() override;
private:
~IdleRequestExecutorTimeoutHandler() override {}
RefPtr<IdleRequestExecutor> mExecutor;
};
NS_IMPL_CYCLE_COLLECTION_INHERITED(IdleRequestExecutorTimeoutHandler,
TimeoutHandler, mExecutor)
NS_IMPL_ADDREF_INHERITED(IdleRequestExecutorTimeoutHandler, TimeoutHandler)
NS_IMPL_RELEASE_INHERITED(IdleRequestExecutorTimeoutHandler, TimeoutHandler)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IdleRequestExecutorTimeoutHandler)
NS_INTERFACE_MAP_END_INHERITING(TimeoutHandler)
class IdleRequestExecutor final : public nsIRunnable,
public nsICancelableRunnable,
public nsINamed,
public nsIIdleRunnable {
public:
explicit IdleRequestExecutor(nsGlobalWindowInner* aWindow)
: mDispatched(false), mDeadline(TimeStamp::Now()), mWindow(aWindow) {
MOZ_DIAGNOSTIC_ASSERT(mWindow);
mIdlePeriodLimit = {mDeadline, mWindow->LastIdleRequestHandle()};
mDelayedExecutorDispatcher = new IdleRequestExecutorTimeoutHandler(this);
}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(IdleRequestExecutor, nsIRunnable)
NS_DECL_NSIRUNNABLE
NS_DECL_NSINAMED
nsresult Cancel() override;
void SetDeadline(TimeStamp aDeadline) override;
bool IsCancelled() const { return !mWindow || mWindow->IsDying(); }
// Checks if aRequest shouldn't execute in the current idle period
// since it has been queued from a chained call to
// requestIdleCallback from within a running idle callback.
bool IneligibleForCurrentIdlePeriod(IdleRequest* aRequest) const {
return aRequest->Handle() >= mIdlePeriodLimit.mLastRequestIdInIdlePeriod &&
TimeStamp::Now() <= mIdlePeriodLimit.mEndOfIdlePeriod;
}
void MaybeUpdateIdlePeriodLimit();
// Maybe dispatch the IdleRequestExecutor. MabyeDispatch will
// schedule a delayed dispatch if the associated window is in the
// background or if given a time to wait until dispatching.
void MaybeDispatch(TimeStamp aDelayUntil = TimeStamp());
void ScheduleDispatch();
private:
struct IdlePeriodLimit {
TimeStamp mEndOfIdlePeriod;
uint32_t mLastRequestIdInIdlePeriod;
};
void DelayedDispatch(uint32_t aDelay);
~IdleRequestExecutor() override {}
bool mDispatched;
TimeStamp mDeadline;
IdlePeriodLimit mIdlePeriodLimit;
RefPtr<nsGlobalWindowInner> mWindow;
// The timeout handler responsible for dispatching this executor in
// the case of immediate dispatch to the idle queue isn't
// desirable. This is used if we've dispatched all idle callbacks
// that are allowed to run in the current idle period, or if the
// associated window is currently in the background.
nsCOMPtr<nsITimeoutHandler> mDelayedExecutorDispatcher;
// If not Nothing() then this value is the handle to the currently
// scheduled delayed executor dispatcher. This is needed to be able
// to cancel the timeout handler in case of the executor being
// cancelled.
Maybe<int32_t> mDelayedExecutorHandle;
};
NS_IMPL_CYCLE_COLLECTION_CLASS(IdleRequestExecutor)
NS_IMPL_CYCLE_COLLECTING_ADDREF(IdleRequestExecutor)
NS_IMPL_CYCLE_COLLECTING_RELEASE(IdleRequestExecutor)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IdleRequestExecutor)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDelayedExecutorDispatcher)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IdleRequestExecutor)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDelayedExecutorDispatcher)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IdleRequestExecutor)
NS_INTERFACE_MAP_ENTRY(nsIRunnable)
NS_INTERFACE_MAP_ENTRY(nsICancelableRunnable)
NS_INTERFACE_MAP_ENTRY(nsINamed)
NS_INTERFACE_MAP_ENTRY(nsIIdleRunnable)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIRunnable)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
IdleRequestExecutor::GetName(nsACString& aName) {
aName.AssignLiteral("IdleRequestExecutor");
return NS_OK;
}
// MOZ_CAN_RUN_SCRIPT_BOUNDARY until nsIRunnable::Run is MOZ_CAN_RUN_SCRIPT.
// See bug 1535398.
MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODIMP IdleRequestExecutor::Run() {
MOZ_ASSERT(NS_IsMainThread());
mDispatched = false;
if (mWindow) {
RefPtr<nsGlobalWindowInner> window(mWindow);
window->ExecuteIdleRequest(mDeadline);
}
return NS_OK;
}
nsresult IdleRequestExecutor::Cancel() {
MOZ_ASSERT(NS_IsMainThread());
if (mDelayedExecutorHandle && mWindow) {
mWindow->TimeoutManager().ClearTimeout(
mDelayedExecutorHandle.value(), Timeout::Reason::eIdleCallbackTimeout);
}
mWindow = nullptr;
return NS_OK;
}
void IdleRequestExecutor::SetDeadline(TimeStamp aDeadline) {
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return;
}
mDeadline = aDeadline;
}
void IdleRequestExecutor::MaybeUpdateIdlePeriodLimit() {
if (TimeStamp::Now() > mIdlePeriodLimit.mEndOfIdlePeriod) {
mIdlePeriodLimit = {mDeadline, mWindow->LastIdleRequestHandle()};
}
}
void IdleRequestExecutor::MaybeDispatch(TimeStamp aDelayUntil) {
// If we've already dispatched the executor we don't want to do it
// again. Also, if we've called IdleRequestExecutor::Cancel mWindow
// will be null, which indicates that we shouldn't dispatch this
// executor either.
if (mDispatched || IsCancelled()) {
return;
}
mDispatched = true;
nsPIDOMWindowOuter* outer = mWindow->GetOuterWindow();
if (outer && outer->IsBackground()) {
// Set a timeout handler with a timeout of 0 ms to throttle idle
// callback requests coming from a backround window using
// background timeout throttling.
DelayedDispatch(0);
return;
}
TimeStamp now = TimeStamp::Now();
if (!aDelayUntil || aDelayUntil < now) {
ScheduleDispatch();
return;
}
TimeDuration delay = aDelayUntil - now;
DelayedDispatch(static_cast<uint32_t>(delay.ToMilliseconds()));
}
void IdleRequestExecutor::ScheduleDispatch() {
MOZ_ASSERT(mWindow);
mDelayedExecutorHandle = Nothing();
RefPtr<IdleRequestExecutor> request = this;
NS_DispatchToCurrentThreadQueue(request.forget(), EventQueuePriority::Idle);
}
void IdleRequestExecutor::DelayedDispatch(uint32_t aDelay) {
MOZ_ASSERT(mWindow);
MOZ_ASSERT(mDelayedExecutorHandle.isNothing());
int32_t handle;
mWindow->TimeoutManager().SetTimeout(
mDelayedExecutorDispatcher, aDelay, false,
Timeout::Reason::eIdleCallbackTimeout, &handle);
mDelayedExecutorHandle = Some(handle);
}
void IdleRequestExecutorTimeoutHandler::Call() {
if (!mExecutor->IsCancelled()) {
mExecutor->ScheduleDispatch();
}
}
void nsGlobalWindowInner::ScheduleIdleRequestDispatch() {
AssertIsOnMainThread();
if (!mIdleRequestExecutor) {
mIdleRequestExecutor = new IdleRequestExecutor(this);
}
mIdleRequestExecutor->MaybeDispatch();
}
void nsGlobalWindowInner::SuspendIdleRequests() {
if (mIdleRequestExecutor) {
mIdleRequestExecutor->Cancel();
mIdleRequestExecutor = nullptr;
}
}
void nsGlobalWindowInner::ResumeIdleRequests() {
MOZ_ASSERT(!mIdleRequestExecutor);
ScheduleIdleRequestDispatch();
}
void nsGlobalWindowInner::RemoveIdleCallback(
mozilla::dom::IdleRequest* aRequest) {
AssertIsOnMainThread();
if (aRequest->HasTimeout()) {
mTimeoutManager->ClearTimeout(aRequest->GetTimeoutHandle(),
Timeout::Reason::eIdleCallbackTimeout);
}
aRequest->removeFrom(mIdleRequestCallbacks);
}
void nsGlobalWindowInner::RunIdleRequest(IdleRequest* aRequest,
DOMHighResTimeStamp aDeadline,
bool aDidTimeout) {
AssertIsOnMainThread();
// XXXbz Do we still need this RefPtr? MOZ_CAN_RUN_SCRIPT should
// guarantee that caller is holding a strong ref on the stack.
RefPtr<IdleRequest> request(aRequest);
RemoveIdleCallback(request);
request->IdleRun(this, aDeadline, aDidTimeout);
}
void nsGlobalWindowInner::ExecuteIdleRequest(TimeStamp aDeadline) {
AssertIsOnMainThread();
RefPtr<IdleRequest> request = mIdleRequestCallbacks.getFirst();
if (!request) {
// There are no more idle requests, so stop scheduling idle
// request callbacks.
return;
}
// If the request that we're trying to execute has been queued
// during the current idle period, then dispatch it again at the end
// of the idle period.
if (mIdleRequestExecutor->IneligibleForCurrentIdlePeriod(request)) {
mIdleRequestExecutor->MaybeDispatch(aDeadline);
return;
}
DOMHighResTimeStamp deadline = 0.0;
if (Performance* perf = GetPerformance()) {
deadline = perf->GetDOMTiming()->TimeStampToDOMHighRes(aDeadline);
}
mIdleRequestExecutor->MaybeUpdateIdlePeriodLimit();
RunIdleRequest(request, deadline, false);
// Running the idle callback could've suspended the window, in which
// case mIdleRequestExecutor will be null.
if (mIdleRequestExecutor) {
mIdleRequestExecutor->MaybeDispatch();
}
}
class IdleRequestTimeoutHandler final : public TimeoutHandler {
public:
IdleRequestTimeoutHandler(JSContext* aCx, IdleRequest* aIdleRequest,
nsPIDOMWindowInner* aWindow)
: TimeoutHandler(aCx), mIdleRequest(aIdleRequest), mWindow(aWindow) {}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IdleRequestTimeoutHandler,
TimeoutHandler)
MOZ_CAN_RUN_SCRIPT void Call() override {
RefPtr<nsGlobalWindowInner> window(nsGlobalWindowInner::Cast(mWindow));
RefPtr<IdleRequest> request(mIdleRequest);
window->RunIdleRequest(request, 0.0, true);
}
private:
~IdleRequestTimeoutHandler() override {}
RefPtr<IdleRequest> mIdleRequest;
nsCOMPtr<nsPIDOMWindowInner> mWindow;
};
NS_IMPL_CYCLE_COLLECTION_INHERITED(IdleRequestTimeoutHandler, TimeoutHandler,
mIdleRequest, mWindow)
NS_IMPL_ADDREF_INHERITED(IdleRequestTimeoutHandler, TimeoutHandler)
NS_IMPL_RELEASE_INHERITED(IdleRequestTimeoutHandler, TimeoutHandler)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IdleRequestTimeoutHandler)
NS_INTERFACE_MAP_END_INHERITING(TimeoutHandler)
uint32_t nsGlobalWindowInner::RequestIdleCallback(
JSContext* aCx, IdleRequestCallback& aCallback,
const IdleRequestOptions& aOptions, ErrorResult& aError) {
AssertIsOnMainThread();
if (IsDying()) {
return 0;
}
uint32_t handle = mIdleRequestCallbackCounter++;
RefPtr<IdleRequest> request = new IdleRequest(&aCallback, handle);
if (aOptions.mTimeout.WasPassed()) {
int32_t timeoutHandle;
nsCOMPtr<nsITimeoutHandler> handler(
new IdleRequestTimeoutHandler(aCx, request, this));
nsresult rv = mTimeoutManager->SetTimeout(
handler, aOptions.mTimeout.Value(), false,
Timeout::Reason::eIdleCallbackTimeout, &timeoutHandle);
if (NS_WARN_IF(NS_FAILED(rv))) {
return 0;
}
request->SetTimeoutHandle(timeoutHandle);
}
mIdleRequestCallbacks.insertBack(request);
if (!IsSuspended()) {
ScheduleIdleRequestDispatch();
}
return handle;
}
void nsGlobalWindowInner::CancelIdleCallback(uint32_t aHandle) {
for (IdleRequest* r : mIdleRequestCallbacks) {
if (r->Handle() == aHandle) {
RemoveIdleCallback(r);
break;
}
}
}
void nsGlobalWindowInner::DisableIdleCallbackRequests() {
if (mIdleRequestExecutor) {
mIdleRequestExecutor->Cancel();
mIdleRequestExecutor = nullptr;
}
while (!mIdleRequestCallbacks.isEmpty()) {
RefPtr<IdleRequest> request = mIdleRequestCallbacks.getFirst();
RemoveIdleCallback(request);
}
}
bool nsGlobalWindowInner::IsBackgroundInternal() const {
return !mOuterWindow || mOuterWindow->IsBackground();
}
class PromiseDocumentFlushedResolver final {
public:
PromiseDocumentFlushedResolver(Promise* aPromise,
PromiseDocumentFlushedCallback& aCallback)
: mPromise(aPromise), mCallback(&aCallback) {}
virtual ~PromiseDocumentFlushedResolver() = default;
void Call() {
nsMutationGuard guard;
ErrorResult error;
JS::Rooted<JS::Value> returnVal(RootingCx());
mCallback->Call(&returnVal, error);
if (error.Failed()) {
mPromise->MaybeReject(error);
} else if (guard.Mutated(0)) {
// Something within the callback mutated the DOM.
mPromise->MaybeReject(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
} else {
mPromise->MaybeResolve(returnVal);
}
}
void Cancel() { mPromise->MaybeReject(NS_ERROR_ABORT); }
RefPtr<Promise> mPromise;
RefPtr<PromiseDocumentFlushedCallback> mCallback;
};
//*****************************************************************************
//*** nsGlobalWindowInner: Object Management
//*****************************************************************************
nsGlobalWindowInner::nsGlobalWindowInner(nsGlobalWindowOuter* aOuterWindow)
: nsPIDOMWindowInner(aOuterWindow),
mozilla::webgpu::InstanceProvider(this),
mWasOffline(false),
mHasHadSlowScript(false),
mIsChrome(false),
mCleanMessageManager(false),
mNeedsFocus(true),
mHasFocus(false),
mShowFocusRingForContent(false),
mFocusByKeyOccurred(false),
mDidFireDocElemInserted(false),
mHasGamepad(false),
mHasVREvents(false),
mHasVRDisplayActivateEvents(false),
mHasSeenGamepadInput(false),
mSuspendDepth(0),
mFreezeDepth(0),
#ifdef DEBUG
mSerial(0),
#endif
mFocusMethod(0),
mIdleRequestCallbackCounter(1),
mIdleRequestExecutor(nullptr),
mDialogAbuseCount(0),
mAreDialogsEnabled(true),
mObservingDidRefresh(false),
mIteratingDocumentFlushedResolvers(false),
mCanSkipCCGeneration(0),
mBeforeUnloadListenerCount(0) {
mIsInnerWindow = true;
AssertIsOnMainThread();
nsLayoutStatics::AddRef();
// Initialize the PRCList (this).
PR_INIT_CLIST(this);
// add this inner window to the outer window list of inners.
PR_INSERT_AFTER(this, aOuterWindow);
mTimeoutManager = MakeUnique<dom::TimeoutManager>(
*this, StaticPrefs::dom_timeout_max_idle_defer_ms());
mObserver = new nsGlobalWindowObserver(this);
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
// Watch for online/offline status changes so we can fire events. Use
// a strong reference.
os->AddObserver(mObserver, NS_IOSERVICE_OFFLINE_STATUS_TOPIC, false);
os->AddObserver(mObserver, MEMORY_PRESSURE_OBSERVER_TOPIC, false);
}
Preferences::AddStrongObserver(mObserver, "intl.accept_languages");
// Watch for storage notifications so we can fire storage events.
RefPtr<StorageNotifierService> sns = StorageNotifierService::GetOrCreate();
if (sns) {
sns->Register(mObserver);
}
if (XRE_IsContentProcess()) {
nsCOMPtr<nsIDocShell> docShell = GetDocShell();
if (docShell) {
mBrowserChild = docShell->GetBrowserChild();
}
}
// We could have failed the first time through trying
// to create the entropy collector, so we should
// try to get one until we succeed.
static bool sFirstTime = true;
if (sFirstTime) {
sFirstTime = false;
TimeoutManager::Initialize();
}
if (gDumpFile == nullptr) {
nsAutoCString fname;
Preferences::GetCString("browser.dom.window.dump.file", fname);
if (!fname.IsEmpty()) {
// If this fails to open, Dump() knows to just go to stdout on null.
gDumpFile = fopen(fname.get(), "wb+");
} else {
gDumpFile = stdout;
}
}
#ifdef DEBUG
mSerial = nsContentUtils::InnerOrOuterWindowCreated();
if (!PR_GetEnv("MOZ_QUIET")) {
printf_stderr(
"++DOMWINDOW == %d (%p) [pid = %d] [serial = %d] [outer = %p]\n",
nsContentUtils::GetCurrentInnerOrOuterWindowCount(),
static_cast<void*>(ToCanonicalSupports(this)), getpid(), mSerial,
static_cast<void*>(ToCanonicalSupports(aOuterWindow)));
}
#endif
MOZ_LOG(gDOMLeakPRLogInner, LogLevel::Debug,
("DOMWINDOW %p created outer=%p", this, aOuterWindow));
// Add ourselves to the inner windows list.
MOZ_ASSERT(sInnerWindowsById, "Inner Windows hash table must be created!");
MOZ_ASSERT(!sInnerWindowsById->Get(mWindowID),
"This window shouldn't be in the hash table yet!");
// We seem to see crashes in release builds because of null
// |sInnerWindowsById|.
if (sInnerWindowsById) {
sInnerWindowsById->Put(mWindowID, this);
}
}
#ifdef DEBUG
/* static */
void nsGlobalWindowInner::AssertIsOnMainThread() {
MOZ_ASSERT(NS_IsMainThread());
}
#endif // DEBUG
/* static */
void nsGlobalWindowInner::Init() {
AssertIsOnMainThread();
NS_ASSERTION(gDOMLeakPRLogInner,
"gDOMLeakPRLogInner should have been initialized!");
sInnerWindowsById = new InnerWindowByIdTable();
}
nsGlobalWindowInner::~nsGlobalWindowInner() {
AssertIsOnMainThread();
if (IsChromeWindow()) {
MOZ_ASSERT(mCleanMessageManager,
"chrome windows may always disconnect the msg manager");
DisconnectAndClearGroupMessageManagers();
if (mChromeFields.mMessageManager) {
static_cast<nsFrameMessageManager*>(mChromeFields.mMessageManager.get())
->Disconnect();
}
mCleanMessageManager = false;
}
// In most cases this should already have been called, but call it again
// here to catch any corner cases.
FreeInnerObjects();
if (sInnerWindowsById) {
MOZ_ASSERT(sInnerWindowsById->Get(mWindowID),
"This window should be in the hash table");
sInnerWindowsById->Remove(mWindowID);
}
nsContentUtils::InnerOrOuterWindowDestroyed();
#ifdef DEBUG
if (!PR_GetEnv("MOZ_QUIET")) {
nsAutoCString url;
if (mLastOpenedURI) {
url = mLastOpenedURI->GetSpecOrDefault();
// Data URLs can be very long, so truncate to avoid flooding the log.
const uint32_t maxURLLength = 1000;
if (url.Length() > maxURLLength) {
url.Truncate(maxURLLength);
}
}
nsGlobalWindowOuter* outer = nsGlobalWindowOuter::Cast(mOuterWindow);
printf_stderr(
"--DOMWINDOW == %d (%p) [pid = %d] [serial = %d] [outer = %p] [url = "
"%s]\n",
nsContentUtils::GetCurrentInnerOrOuterWindowCount(),
static_cast<void*>(ToCanonicalSupports(this)), getpid(), mSerial,
static_cast<void*>(ToCanonicalSupports(outer)), url.get());
}
#endif
MOZ_LOG(gDOMLeakPRLogInner, LogLevel::Debug,
("DOMWINDOW %p destroyed", this));
Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_MUTATION_LISTENERS,
mMutationBits ? 1 : 0);
Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_TEXT_EVENT_LISTENERS,
mMayHaveTextEventListenerInDefaultGroup ? 1 : 0);
// An inner window is destroyed, pull it out of the outer window's
// list if inner windows.
PR_REMOVE_LINK(this);
// If our outer window's inner window is this window, null out the
// outer window's reference to this window that's being deleted.
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (outer) {
outer->MaybeClearInnerWindow(this);
}
// We don't have to leave the tab group if we are an inner window.
nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
if (ac) ac->RemoveWindowAsListener(this);
nsLayoutStatics::Release();
}
// static
void nsGlobalWindowInner::ShutDown() {
AssertIsOnMainThread();
if (gDumpFile && gDumpFile != stdout) {
fclose(gDumpFile);
}
gDumpFile = nullptr;
delete sInnerWindowsById;
sInnerWindowsById = nullptr;
}
// static
void nsGlobalWindowInner::CleanupCachedXBLHandlers() {
if (mCachedXBLPrototypeHandlers && mCachedXBLPrototypeHandlers->Count() > 0) {
mCachedXBLPrototypeHandlers->Clear();
}
}
void nsGlobalWindowInner::FreeInnerObjects() {
if (IsDying()) {
return;
}
StartDying();
// Make sure that this is called before we null out the document and
// other members that the window destroyed observers could
// re-create.
NotifyDOMWindowDestroyed(this);
if (auto* reporter = nsWindowMemoryReporter::Get()) {
reporter->ObserveDOMWindowDetached(this);
}
// Kill all of the workers for this window.
CancelWorkersForWindow(this);
nsTObserverArray<RefPtr<mozilla::dom::SharedWorker>>::ForwardIterator iter(
mSharedWorkers);
while (iter.HasMore()) {
iter.GetNext()->Close();
}
if (mTimeoutManager) {
mTimeoutManager->ClearAllTimeouts();
}
DisableIdleCallbackRequests();
mChromeEventHandler = nullptr;
if (mListenerManager) {
mListenerManager->Disconnect();
mListenerManager = nullptr;
}
mHistory = nullptr;
if (mNavigator) {
mNavigator->OnNavigation();
mNavigator->Invalidate();
mNavigator = nullptr;
}
mScreen = nullptr;
#if defined(MOZ_WIDGET_ANDROID)
mOrientationChangeObserver = nullptr;
#endif
if (mDoc) {
// Remember the document's principal and URI.
mDocumentPrincipal = mDoc->NodePrincipal();
mDocumentStoragePrincipal = mDoc->EffectiveStoragePrincipal();
mDocumentURI = mDoc->GetDocumentURI();
mDocBaseURI = mDoc->GetDocBaseURI();
while (mDoc->EventHandlingSuppressed()) {
mDoc->UnsuppressEventHandlingAndFireEvents(false);
}
if (mObservingDidRefresh) {
PresShell* presShell = mDoc->GetPresShell();
if (presShell) {
Unused << presShell->RemovePostRefreshObserver(this);
}
}
}
// Remove our reference to the document and the document principal.
mFocusedElement = nullptr;
if (mApplicationCache) {
static_cast<nsDOMOfflineResourceList*>(mApplicationCache.get())
->Disconnect();
mApplicationCache = nullptr;
}
if (mIndexedDB) {
mIndexedDB->DisconnectFromGlobal(this);
mIndexedDB = nullptr;
}
UnlinkHostObjectURIs();
NotifyWindowIDDestroyed("inner-window-destroyed");
CleanupCachedXBLHandlers();
for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
mAudioContexts[i]->Shutdown();
}
mAudioContexts.Clear();
DisableGamepadUpdates();
mHasGamepad = false;
mGamepads.Clear();
DisableVRUpdates();
mHasVREvents = false;
mHasVRDisplayActivateEvents = false;
mVRDisplays.Clear();
// This breaks a cycle between the window and the ClientSource object.
mClientSource.reset();
if (mBrowserChild) {
// Remove any remaining listeners, and reset mBeforeUnloadListenerCount.
for (int i = 0; i < mBeforeUnloadListenerCount; ++i) {
mBrowserChild->BeforeUnloadRemoved();
}
mBeforeUnloadListenerCount = 0;
}
// If we have any promiseDocumentFlushed callbacks, fire them now so
// that the Promises can resolve.
CallDocumentFlushedResolvers();
mObservingDidRefresh = false;
DisconnectEventTargetObjects();
if (mObserver) {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
os->RemoveObserver(mObserver, NS_IOSERVICE_OFFLINE_STATUS_TOPIC);
os->RemoveObserver(mObserver, MEMORY_PRESSURE_OBSERVER_TOPIC);
}
RefPtr<StorageNotifierService> sns = StorageNotifierService::GetOrCreate();
if (sns) {
sns->Unregister(mObserver);
}
Preferences::RemoveObserver(mObserver, "intl.accept_languages");
// Drop its reference to this dying window, in case for some bogus reason
// the object stays around.
mObserver->Forget();
}
mMenubar = nullptr;
mToolbar = nullptr;
mLocationbar = nullptr;
mPersonalbar = nullptr;
mStatusbar = nullptr;
mScrollbars = nullptr;
mConsole = nullptr;
mPaintWorklet = nullptr;
mExternal = nullptr;
mInstallTrigger = nullptr;
mLocalStorage = nullptr;
mSessionStorage = nullptr;
mPerformance = nullptr;
mSharedWorkers.Clear();
#ifdef MOZ_WEBSPEECH
mSpeechSynthesis = nullptr;
#endif
mParentTarget = nullptr;
if (mCleanMessageManager) {
MOZ_ASSERT(mIsChrome, "only chrome should have msg manager cleaned");
if (mChromeFields.mMessageManager) {
mChromeFields.mMessageManager->Disconnect();
}
}
if (mWindowGlobalChild && !mWindowGlobalChild->IsClosed()) {
mWindowGlobalChild->Destroy();
}
mWindowGlobalChild = nullptr;
mIntlUtils = nullptr;
}
//*****************************************************************************
// nsGlobalWindowInner::nsISupports
//*****************************************************************************
// QueryInterface implementation for nsGlobalWindowInner
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsGlobalWindowInner)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, EventTarget)
NS_INTERFACE_MAP_ENTRY(nsIDOMWindow)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsIScriptGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(mozilla::dom::EventTarget)
NS_INTERFACE_MAP_ENTRY(nsPIDOMWindowInner)
NS_INTERFACE_MAP_ENTRY(mozIDOMWindow)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIDOMChromeWindow, IsChromeWindow())
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsGlobalWindowInner)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsGlobalWindowInner)
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(nsGlobalWindowInner)
if (tmp->IsBlackForCC(false)) {
if (nsCCUncollectableMarker::InGeneration(tmp->mCanSkipCCGeneration)) {
return true;
}
tmp->mCanSkipCCGeneration = nsCCUncollectableMarker::sGeneration;
if (tmp->mCachedXBLPrototypeHandlers) {
for (auto iter = tmp->mCachedXBLPrototypeHandlers->Iter(); !iter.Done();
iter.Next()) {
iter.Data().exposeToActiveJS();
}
}
if (EventListenerManager* elm = tmp->GetExistingListenerManager()) {
elm->MarkForCC();
}
if (tmp->mTimeoutManager) {
tmp->mTimeoutManager->UnmarkGrayTimers();
}
return true;
}
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(nsGlobalWindowInner)
return tmp->IsBlackForCC(true);
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(nsGlobalWindowInner)
return tmp->IsBlackForCC(false);
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
NS_IMPL_CYCLE_COLLECTION_CLASS(nsGlobalWindowInner)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(nsGlobalWindowInner)
if (MOZ_UNLIKELY(cb.WantDebugInfo())) {
char name[512];
nsAutoCString uri;
if (tmp->mDoc && tmp->mDoc->GetDocumentURI()) {
uri = tmp->mDoc->GetDocumentURI()->GetSpecOrDefault();
}
SprintfLiteral(name, "nsGlobalWindowInner # %" PRIu64 " inner %s",
tmp->mWindowID, uri.get());
cb.DescribeRefCountedNode(tmp->mRefCnt.get(), name);
} else {
NS_IMPL_CYCLE_COLLECTION_DESCRIBE(nsGlobalWindowInner, tmp->mRefCnt.get())
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mNavigator)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPerformance)
#ifdef MOZ_WEBSPEECH
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSpeechSynthesis)
#endif
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOuterWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTopInnerWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mListenerManager)
if (tmp->mTimeoutManager) {
tmp->mTimeoutManager->ForEachUnorderedTimeout([&cb](Timeout* timeout) {
cb.NoteNativeChild(timeout, NS_CYCLE_COLLECTION_PARTICIPANT(Timeout));
});
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLocation)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mHistory)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCustomElements)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSharedWorkers)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLocalStorage)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSessionStorage)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mApplicationCache)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIndexedDB)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDocumentPrincipal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDocumentStoragePrincipal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBrowserChild)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDoc)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIdleRequestExecutor)
for (IdleRequest* request : tmp->mIdleRequestCallbacks) {
cb.NoteNativeChild(request, NS_CYCLE_COLLECTION_PARTICIPANT(IdleRequest));
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mClientSource)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGamepads)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCacheStorage)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVRDisplays)
// Traverse stuff from nsPIDOMWindow
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChromeEventHandler)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParentTarget)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFocusedElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMenubar)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mToolbar)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLocationbar)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPersonalbar)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mStatusbar)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mScrollbars)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCrypto)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mU2F)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mConsole)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPaintWorklet)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mExternal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mInstallTrigger)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIntlUtils)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mReportRecords)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mReportingObservers)
tmp->TraverseHostObjectURIs(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChromeFields.mMessageManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChromeFields.mGroupMessageManagers)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPendingPromises)
for (size_t i = 0; i < tmp->mDocumentFlushedResolvers.Length(); i++) {
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDocumentFlushedResolvers[i]->mPromise);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDocumentFlushedResolvers[i]->mCallback);
}
static_cast<mozilla::webgpu::InstanceProvider*>(tmp)->CcTraverse(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsGlobalWindowInner)
JSObject* wrapper = tmp->GetWrapperPreserveColor();
if (wrapper) {
// Mark our realm as dead, so the JS engine won't hand out our
// global after this point.
JS::RealmBehaviorsRef(js::GetNonCCWObjectRealm(wrapper)).setNonLive();
}
tmp->CleanupCachedXBLHandlers();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mNavigator)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPerformance)
#ifdef MOZ_WEBSPEECH
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSpeechSynthesis)
#endif
if (tmp->mOuterWindow) {
nsGlobalWindowOuter::Cast(tmp->mOuterWindow)->MaybeClearInnerWindow(tmp);
NS_IMPL_CYCLE_COLLECTION_UNLINK(mOuterWindow)
}
if (tmp->mListenerManager) {
tmp->mListenerManager->Disconnect();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mListenerManager)
}
// Here the Timeouts list would've been unlinked, but we rely on
// that Timeout objects have been traced and will remove themselves
// while unlinking.
tmp->UpdateTopInnerWindow();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTopInnerWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mLocation)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mHistory)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mCustomElements)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSharedWorkers)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mLocalStorage)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSessionStorage)
if (tmp->mApplicationCache) {
static_cast<nsDOMOfflineResourceList*>(tmp->mApplicationCache.get())
->Disconnect();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mApplicationCache)
}
if (tmp->mIndexedDB) {
tmp->mIndexedDB->DisconnectFromGlobal(tmp);
NS_IMPL_CYCLE_COLLECTION_UNLINK(mIndexedDB)
}
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDocumentPrincipal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDocumentStoragePrincipal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mBrowserChild)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDoc)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGamepads)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mCacheStorage)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mVRDisplays)
// Unlink stuff from nsPIDOMWindow
NS_IMPL_CYCLE_COLLECTION_UNLINK(mChromeEventHandler)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mParentTarget)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mFocusedElement)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMenubar)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mToolbar)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mLocationbar)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPersonalbar)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mStatusbar)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mScrollbars)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mCrypto)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mU2F)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mConsole)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPaintWorklet)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mExternal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mInstallTrigger)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mIntlUtils)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mReportRecords)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mReportingObservers)
tmp->UnlinkHostObjectURIs();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mIdleRequestExecutor)
// Here the IdleRequest list would've been unlinked, but we rely on
// that IdleRequest objects have been traced and will remove
// themselves while unlinking.
NS_IMPL_CYCLE_COLLECTION_UNLINK(mClientSource)
if (tmp->IsChromeWindow()) {
if (tmp->mChromeFields.mMessageManager) {
static_cast<nsFrameMessageManager*>(
tmp->mChromeFields.mMessageManager.get())
->Disconnect();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mChromeFields.mMessageManager)
}
tmp->DisconnectAndClearGroupMessageManagers();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mChromeFields.mGroupMessageManagers)
}
NS_IMPL_CYCLE_COLLECTION_UNLINK(mPendingPromises)
for (size_t i = 0; i < tmp->mDocumentFlushedResolvers.Length(); i++) {
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDocumentFlushedResolvers[i]->mPromise);
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDocumentFlushedResolvers[i]->mCallback);
}
tmp->mDocumentFlushedResolvers.Clear();
static_cast<mozilla::webgpu::InstanceProvider*>(tmp)->CcUnlink();
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
#ifdef DEBUG
void nsGlobalWindowInner::RiskyUnlink() {
NS_CYCLE_COLLECTION_INNERNAME.Unlink(this);
}
#endif
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsGlobalWindowInner)
if (tmp->mCachedXBLPrototypeHandlers) {
for (auto iter = tmp->mCachedXBLPrototypeHandlers->Iter(); !iter.Done();
iter.Next()) {
aCallbacks.Trace(&iter.Data(), "Cached XBL prototype handler", aClosure);
}
}
NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_TRACE_END
bool nsGlobalWindowInner::IsBlackForCC(bool aTracingNeeded) {
if (!nsCCUncollectableMarker::sGeneration) {
return false;
}
return (nsCCUncollectableMarker::InGeneration(GetMarkedCCGeneration()) ||
HasKnownLiveWrapper()) &&
(!aTracingNeeded || HasNothingToTrace(ToSupports(this)));
}
//*****************************************************************************
// nsGlobalWindowInner::nsIScriptGlobalObject
//*****************************************************************************
nsresult nsGlobalWindowInner::EnsureScriptEnvironment() {
// NOTE: We can't use FORWARD_TO_OUTER here because we don't want to fail if
// we're called on an inactive inner window.
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (!outer) {
NS_WARNING("No outer window available!");
return NS_ERROR_FAILURE;
}
return outer->EnsureScriptEnvironment();
}
nsIScriptContext* nsGlobalWindowInner::GetScriptContext() {
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (!outer) {
return nullptr;
}
return outer->GetScriptContext();
}
void nsGlobalWindowInner::TraceGlobalJSObject(JSTracer* aTrc) {
TraceWrapper(aTrc, "active window global");
}
bool nsGlobalWindowInner::ShouldResetBrowsingContextUserGestureActivation() {
// Reset user gesture activation flag only when the top level document changes
// and its corresponding browsing context has been activated by user gesture.
return mWindowGlobalChild && GetOuterWindowInternal() &&
GetOuterWindowInternal()->IsTopLevelWindow() && Window() &&
Window()->GetUserGestureActivation();
}
void nsGlobalWindowInner::InnerSetNewDocument(JSContext* aCx,
Document* aDocument) {
MOZ_ASSERT(aDocument);
if (MOZ_LOG_TEST(gDOMLeakPRLogInner, LogLevel::Debug)) {
nsIURI* uri = aDocument->GetDocumentURI();
MOZ_LOG(gDOMLeakPRLogInner, LogLevel::Debug,
("DOMWINDOW %p SetNewDocument %s", this,
uri ? uri->GetSpecOrDefault().get() : ""));
}
mDoc = aDocument;
mFocusedElement = nullptr;
mLocalStorage = nullptr;
mSessionStorage = nullptr;
mPerformance = nullptr;
// This must be called after nullifying the internal objects because here we
// could recreate them, calling the getter methods, and store them into the JS
// slots. If we nullify them after, the slot values and the objects will be
// out of sync.
ClearDocumentDependentSlots(aCx);
// FIXME: Currently, devtools can crete a fallback webextension window global
// in the content process which does not have a corresponding BrowserChild
// actor. This means we have no actor to be our parent. (Bug 1498293)
MOZ_DIAGNOSTIC_ASSERT(!mWindowGlobalChild,
"Shouldn't have created WindowGlobalChild yet!");
if (XRE_IsParentProcess() || mBrowserChild) {
mWindowGlobalChild = WindowGlobalChild::Create(this);
}
if (ShouldResetBrowsingContextUserGestureActivation()) {
Window()->NotifyResetUserGestureActivation();
}
#ifdef DEBUG
mLastOpenedURI = aDocument->GetDocumentURI();
#endif
Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_MUTATION_LISTENERS,
mMutationBits ? 1 : 0);
Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_TEXT_EVENT_LISTENERS,
mMayHaveTextEventListenerInDefaultGroup ? 1 : 0);
// Clear our mutation bitfield.
mMutationBits = 0;
mMayHaveTextEventListenerInDefaultGroup = false;
}
nsresult nsGlobalWindowInner::EnsureClientSource() {
MOZ_DIAGNOSTIC_ASSERT(mDoc);
bool newClientSource = false;
// Get the load info for the document if we performed a load. Be careful not
// to look at local URLs, though. Local URLs are those that have a scheme of:
// * about:
// * data:
// * blob:
// We also do an additional check here so that we only treat about:blank
// and about:srcdoc as local URLs. Other internal firefox about: URLs should
// not be treated this way.
nsCOMPtr<nsILoadInfo> loadInfo;
nsCOMPtr<nsIChannel> channel = mDoc->GetChannel();
if (channel) {
nsCOMPtr<nsIURI> uri;
Unused << channel->GetURI(getter_AddRefs(uri));
bool ignoreLoadInfo = false;
// Note, this is mostly copied from NS_IsAboutBlank(). Its duplicated
// here so we can efficiently check about:srcdoc as well.
bool isAbout = false;
if (NS_SUCCEEDED(uri->SchemeIs("about", &isAbout)) && isAbout) {
nsCString spec = uri->GetSpecOrDefault();
ignoreLoadInfo = spec.EqualsLiteral("about:blank") ||
spec.EqualsLiteral("about:srcdoc");
} else {
// Its not an about: URL, so now check for our other URL types.
bool isData = false;
bool isBlob = false;
ignoreLoadInfo =
(NS_SUCCEEDED(uri->SchemeIs("data", &isData)) && isData) ||
(NS_SUCCEEDED(uri->SchemeIs("blob", &isBlob)) && isBlob);
}
if (!ignoreLoadInfo) {
loadInfo = channel->LoadInfo();
}
}
// Take the initial client source from the docshell immediately. Even if we
// don't end up using it here we should consume it.
UniquePtr<ClientSource> initialClientSource;
nsIDocShell* docshell = GetDocShell();
if (docshell) {
initialClientSource = docshell->TakeInitialClientSource();
}
// Try to get the reserved client from the LoadInfo. A Client is
// reserved at the start of the channel load if there is not an
// initial about:blank document that will be reused. It is also
// created if the channel load encounters a cross-origin redirect.
if (loadInfo) {
UniquePtr<ClientSource> reservedClient =
loadInfo->TakeReservedClientSource();
if (reservedClient) {
mClientSource.reset();
mClientSource = std::move(reservedClient);
newClientSource = true;
}
}
// We don't have a LoadInfo reserved client, but maybe we should
// be inheriting an initial one from the docshell. This means
// that the docshell started the channel load before creating the
// initial about:blank document. This is an optimization, though,
// and it created an initial Client as a placeholder for the document.
// In this case we want to inherit this placeholder Client here.
if (!mClientSource) {
mClientSource = std::move(initialClientSource);
if (mClientSource) {
newClientSource = true;
}
}
// Verify the final ClientSource principal matches the final document
// principal. The ClientChannelHelper handles things like network
// redirects, but there are other ways the document principal can change.
// For example, if something sets the nsIChannel.owner property, then
// the final channel principal can be anything. Unfortunately there is
// no good way to detect this until after the channel completes loading.
//
// For now we handle this just by reseting the ClientSource. This will
// result in a new ClientSource with the correct principal being created.
// To APIs like ServiceWorker and Clients API it will look like there was
// an initial content page created that was then immediately replaced.
// This is pretty close to what we are actually doing.
if (mClientSource) {
nsCOMPtr<nsIPrincipal> clientPrincipal(
mClientSource->Info().GetPrincipal());
if (!clientPrincipal || !clientPrincipal->Equals(mDoc->NodePrincipal())) {
mClientSource.reset();
}
}
// If we don't have a reserved client or an initial client, then create
// one now. This can happen in certain cases where we avoid preallocating
// the client in the docshell. This mainly occurs in situations where
// the principal is not clearly inherited from the parent; e.g. sandboxed
// iframes, window.open(), etc.
//
// We also do this late ClientSource creation if the final document ended
// up with a different principal.
//
// TODO: We may not be marking initial about:blank documents created
// this way as controlled by a service worker properly. The
// controller should be coming from the same place as the inheritted
// principal. We do this in docshell, but as mentioned we aren't
// smart enough to handle all cases yet. For example, a
// window.open() with new URL should inherit the controller from
// the opener, but we probably don't handle that yet.
if (!mClientSource) {
mClientSource = ClientManager::CreateSource(
ClientType::Window, EventTargetFor(TaskCategory::Other),
mDoc->NodePrincipal());
MOZ_DIAGNOSTIC_ASSERT(mClientSource);
newClientSource = true;
// Note, we don't apply the loadinfo controller below if we create
// the ClientSource here.
}
// The load may have started controlling the Client as well. If
// so, mark it as controlled immediately here. The actor may
// or may not have been notified by the parent side about being
// controlled yet.
//
// Note: We should be careful not to control a client that was created late.
// These clients were not seen by the ServiceWorkerManager when it
// marked the LoadInfo controlled and it won't know about them. Its
// also possible we are creating the client late due to the final
// principal changing and these clients should definitely not be
// controlled by a service worker with a different principal.
else if (loadInfo) {
const Maybe<ServiceWorkerDescriptor> controller = loadInfo->GetController();
if (controller.isSome()) {
mClientSource->SetController(controller.ref());
}
// We also have to handle the case where te initial about:blank is
// controlled due to inheritting the service worker from its parent,
// but the actual nsIChannel load is not covered by any service worker.
// In this case we want the final page to be uncontrolled. There is
// an open spec issue about how exactly this should be handled, but for
// now we just force creation of a new ClientSource to clear the
// controller.
//
// https://github.com/w3c/ServiceWorker/issues/1232
//
else if (mClientSource->GetController().isSome()) {
mClientSource.reset();
mClientSource = ClientManager::CreateSource(
ClientType::Window, EventTargetFor(TaskCategory::Other),
mDoc->NodePrincipal());
MOZ_DIAGNOSTIC_ASSERT(mClientSource);
newClientSource = true;
}
}
// Its possible that we got a client just after being frozen in
// the bfcache. In that case freeze the client immediately.
if (newClientSource && IsFrozen()) {
mClientSource->Freeze();
}
return NS_OK;
}
nsresult nsGlobalWindowInner::ExecutionReady() {
nsresult rv = EnsureClientSource();
NS_ENSURE_SUCCESS(rv, rv);
rv = mClientSource->WindowExecutionReady(this);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
void nsGlobalWindowInner::UpdateParentTarget() {
// NOTE: This method is identical to
// nsGlobalWindowOuter::UpdateParentTarget(). IF YOU UPDATE THIS METHOD,
// UPDATE THE OTHER ONE TOO!
// Try to get our frame element's tab child global (its in-process message
// manager). If that fails, fall back to the chrome event handler's tab
// child global, and if it doesn't have one, just use the chrome event
// handler itself.
nsCOMPtr<Element> frameElement = GetOuterWindow()->GetFrameElementInternal();
nsCOMPtr<EventTarget> eventTarget =
nsContentUtils::TryGetBrowserChildGlobal(frameElement);
if (!eventTarget) {
nsGlobalWindowOuter* topWin = GetScriptableTopInternal();
if (topWin) {
frameElement = topWin->GetFrameElementInternal();
eventTarget = nsContentUtils::TryGetBrowserChildGlobal(frameElement);
}
}
if (!eventTarget) {
eventTarget = nsContentUtils::TryGetBrowserChildGlobal(mChromeEventHandler);
}
if (!eventTarget) {
eventTarget = mChromeEventHandler;
}
mParentTarget = eventTarget;
}
EventTarget* nsGlobalWindowInner::GetTargetForDOMEvent() {
return GetOuterWindowInternal();
}
void nsGlobalWindowInner::GetEventTargetParent(EventChainPreVisitor& aVisitor) {
EventMessage msg = aVisitor.mEvent->mMessage;
aVisitor.mCanHandle = true;
aVisitor.mForceContentDispatch = true; // FIXME! Bug 329119
if (msg == eResize && aVisitor.mEvent->IsTrusted()) {
// QIing to window so that we can keep the old behavior also in case
// a child window is handling resize.
nsCOMPtr<nsPIDOMWindowInner> window =
do_QueryInterface(aVisitor.mEvent->mOriginalTarget);
if (window) {
mIsHandlingResizeEvent = true;
}
} else if (msg == eMouseDown && aVisitor.mEvent->IsTrusted()) {
sMouseDown = true;
} else if ((msg == eMouseUp || msg == eDragEnd) &&
aVisitor.mEvent->IsTrusted()) {
sMouseDown = false;
if (sDragServiceDisabled) {
nsCOMPtr<nsIDragService> ds =
do_GetService("@mozilla.org/widget/dragservice;1");
if (ds) {
sDragServiceDisabled = false;
ds->Unsuppress();
}
}
}
aVisitor.SetParentTarget(GetParentTarget(), true);
}
bool nsGlobalWindowInner::DialogsAreBeingAbused() {
NS_ASSERTION(
GetScriptableTopInternal() &&
GetScriptableTopInternal()->GetCurrentInnerWindowInternal() == this,
"DialogsAreBeingAbused called with invalid window");
if (mLastDialogQuitTime.IsNull() || nsContentUtils::IsCallerChrome()) {
return false;
}
TimeDuration dialogInterval(TimeStamp::Now() - mLastDialogQuitTime);
if (dialogInterval.ToSeconds() <
Preferences::GetInt("dom.successive_dialog_time_limit",
DEFAULT_SUCCESSIVE_DIALOG_TIME_LIMIT)) {
mDialogAbuseCount++;
return PopupBlocker::GetPopupControlState() > PopupBlocker::openAllowed ||
mDialogAbuseCount > MAX_SUCCESSIVE_DIALOG_COUNT;
}
// Reset the abuse counter
mDialogAbuseCount = 0;
return false;
}
nsresult nsGlobalWindowInner::PostHandleEvent(EventChainPostVisitor& aVisitor) {
// Return early if there is nothing to do.
switch (aVisitor.mEvent->mMessage) {
case eResize:
case eUnload:
case eLoad:
break;
default:
return NS_OK;
}
/* mChromeEventHandler and mContext go dangling in the middle of this
function under some circumstances (events that destroy the window)
without this addref. */
RefPtr<EventTarget> kungFuDeathGrip1(mChromeEventHandler);
mozilla::Unused
<< kungFuDeathGrip1; // These aren't referred to through the function
nsCOMPtr<nsIScriptContext> kungFuDeathGrip2(GetContextInternal());
mozilla::Unused
<< kungFuDeathGrip2; // These aren't referred to through the function
if (aVisitor.mEvent->mMessage == eResize) {
mIsHandlingResizeEvent = false;
} else if (aVisitor.mEvent->mMessage == eUnload &&
aVisitor.mEvent->IsTrusted()) {
// If any VR display presentation is active at unload, the next page
// will receive a vrdisplayactive event to indicate that it should
// immediately begin vr presentation. This should occur when navigating
// forwards, navigating backwards, and on page reload.
for (const auto& display : mVRDisplays) {
if (display->IsPresenting()) {
display->StartVRNavigation();
// Save this VR display ID to trigger vrdisplayactivate event
// after the next load event.
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (outer) {
outer->SetAutoActivateVRDisplayID(display->DisplayId());
}
// XXX The WebVR 1.1 spec does not define which of multiple VR
// presenting VR displays will be chosen during navigation.
// As the underlying platform VR API's currently only allow a single
// VR display, it is safe to choose the first VR display for now.
break;
}
}
// Execute bindingdetached handlers before we tear ourselves
// down.
if (mDoc) {
mDoc->BindingManager()->ExecuteDetachedHandlers();
}
mIsDocumentLoaded = false;
} else if (aVisitor.mEvent->mMessage == eLoad &&
aVisitor.mEvent->IsTrusted()) {
// This is page load event since load events don't propagate to |window|.
// @see Document::GetEventTargetParent.
mIsDocumentLoaded = true;
mTimeoutManager->OnDocumentLoaded();
nsCOMPtr<Element> element = GetOuterWindow()->GetFrameElementInternal();
nsIDocShell* docShell = GetDocShell();
if (element && GetParentInternal() && docShell &&
docShell->ItemType() != nsIDocShellTreeItem::typeChrome) {
// If we're not in chrome, or at a chrome boundary, fire the
// onload event for the frame element.
nsEventStatus status = nsEventStatus_eIgnore;
WidgetEvent event(aVisitor.mEvent->IsTrusted(), eLoad);
event.mFlags.mBubbles = false;
event.mFlags.mCancelable = false;
// Most of the time we could get a pres context to pass in here,
// but not always (i.e. if this window is not shown there won't
// be a pres context available). Since we're not firing a GUI
// event we don't need a pres context anyway so we just pass
// null as the pres context all the time here.
EventDispatcher::Dispatch(element, nullptr, &event, nullptr, &status);
}
if (mVREventObserver) {
mVREventObserver->NotifyAfterLoad();
}
uint32_t autoActivateVRDisplayID = 0;
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (outer) {
autoActivateVRDisplayID = outer->GetAutoActivateVRDisplayID();
}
if (autoActivateVRDisplayID) {
DispatchVRDisplayActivate(autoActivateVRDisplayID,
VRDisplayEventReason::Navigation);
}
}
return NS_OK;
}
nsresult nsGlobalWindowInner::DefineArgumentsProperty(nsIArray* aArguments) {
nsIScriptContext* ctx = GetOuterWindowInternal()->mContext;
NS_ENSURE_TRUE(aArguments && ctx, NS_ERROR_NOT_INITIALIZED);
JS::Rooted<JSObject*> obj(RootingCx(), GetWrapperPreserveColor());
return ctx->SetProperty(obj, "arguments", aArguments);
}
//*****************************************************************************
// nsGlobalWindowInner::nsIScriptObjectPrincipal
//*****************************************************************************
nsIPrincipal* nsGlobalWindowInner::GetPrincipal() {
if (mDoc) {
// If we have a document, get the principal from the document
return mDoc->NodePrincipal();
}
if (mDocumentPrincipal) {
return mDocumentPrincipal;
}
// If we don't have a principal and we don't have a document we
// ask the parent window for the principal. This can happen when
// loading a frameset that has a <frame src="javascript:xxx">, in
// that case the global window is used in JS before we've loaded
// a document into the window.
nsCOMPtr<nsIScriptObjectPrincipal> objPrincipal =
do_QueryInterface(GetParentInternal());
if (objPrincipal) {
return objPrincipal->GetPrincipal();
}
return nullptr;
}
nsIPrincipal* nsGlobalWindowInner::GetEffectiveStoragePrincipal() {
if (mDoc) {
// If we have a document, get the principal from the document
return mDoc->EffectiveStoragePrincipal();
}
if (mDocumentStoragePrincipal) {
return mDocumentStoragePrincipal;
}
// If we don't have a storage principal and we don't have a document we ask
// the parent window for the storage principal.
nsCOMPtr<nsIScriptObjectPrincipal> objPrincipal =
do_QueryInterface(GetParentInternal());
if (objPrincipal) {
return objPrincipal->GetEffectiveStoragePrincipal();
}
return nullptr;
}
//*****************************************************************************
// nsGlobalWindowInner::nsIDOMWindow
//*****************************************************************************
bool nsPIDOMWindowInner::AddAudioContext(AudioContext* aAudioContext) {
mAudioContexts.AppendElement(aAudioContext);
// Return true if the context should be muted and false if not.
nsIDocShell* docShell = GetDocShell();
return docShell && !docShell->GetAllowMedia() && !aAudioContext->IsOffline();
}
void nsPIDOMWindowInner::RemoveAudioContext(AudioContext* aAudioContext) {
mAudioContexts.RemoveElement(aAudioContext);
}
void nsPIDOMWindowInner::MuteAudioContexts() {
for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
if (!mAudioContexts[i]->IsOffline()) {
mAudioContexts[i]->Mute();
}
}
}
void nsPIDOMWindowInner::UnmuteAudioContexts() {
for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
if (!mAudioContexts[i]->IsOffline()) {
mAudioContexts[i]->Unmute();
}
}
}
BrowsingContext* nsGlobalWindowInner::Window() {
return mOuterWindow ? mOuterWindow->GetBrowsingContext() : nullptr;
}
Navigator* nsPIDOMWindowInner::Navigator() {
if (!mNavigator) {
mNavigator = new mozilla::dom::Navigator(this);
}
return mNavigator;
}
VisualViewport* nsGlobalWindowInner::VisualViewport() {
if (!mVisualViewport) {
mVisualViewport = new mozilla::dom::VisualViewport(this);
}
return mVisualViewport;
}
nsScreen* nsGlobalWindowInner::GetScreen(ErrorResult& aError) {
if (!mScreen) {
mScreen = nsScreen::Create(this);
if (!mScreen) {
aError.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
}
return mScreen;
}
nsHistory* nsGlobalWindowInner::GetHistory(ErrorResult& aError) {
if (!mHistory) {
mHistory = new nsHistory(this);
}
return mHistory;
}
CustomElementRegistry* nsGlobalWindowInner::CustomElements() {
if (!mCustomElements) {
mCustomElements = new CustomElementRegistry(this);
}
return mCustomElements;
}
Performance* nsPIDOMWindowInner::GetPerformance() {
CreatePerformanceObjectIfNeeded();
return mPerformance;
}
void nsPIDOMWindowInner::QueuePerformanceNavigationTiming() {
CreatePerformanceObjectIfNeeded();
if (mPerformance) {
mPerformance->QueueNavigationTimingEntry();
}
}
void nsPIDOMWindowInner::CreatePerformanceObjectIfNeeded() {
if (mPerformance || !mDoc) {
return;
}
RefPtr<nsDOMNavigationTiming> timing = mDoc->GetNavigationTiming();
nsCOMPtr<nsITimedChannel> timedChannel(do_QueryInterface(mDoc->GetChannel()));
bool timingEnabled = false;
if (!timedChannel ||
!NS_SUCCEEDED(timedChannel->GetTimingEnabled(&timingEnabled)) ||
!timingEnabled) {
timedChannel = nullptr;
}
if (timing) {
mPerformance = Performance::CreateForMainThread(this, mDoc->NodePrincipal(),
timing, timedChannel);
}
}
bool nsPIDOMWindowInner::IsSecureContext() const {
return nsGlobalWindowInner::Cast(this)->IsSecureContext();
}
void nsPIDOMWindowInner::Suspend() {
nsGlobalWindowInner::Cast(this)->Suspend();
}
void nsPIDOMWindowInner::Resume() { nsGlobalWindowInner::Cast(this)->Resume(); }
void nsPIDOMWindowInner::SyncStateFromParentWindow() {
nsGlobalWindowInner::Cast(this)->SyncStateFromParentWindow();
}
Maybe<ClientInfo> nsPIDOMWindowInner::GetClientInfo() const {
return nsGlobalWindowInner::Cast(this)->GetClientInfo();
}
Maybe<ClientState> nsPIDOMWindowInner::GetClientState() const {
return nsGlobalWindowInner::Cast(this)->GetClientState();
}
Maybe<ServiceWorkerDescriptor> nsPIDOMWindowInner::GetController() const {
return nsGlobalWindowInner::Cast(this)->GetController();
}
void nsPIDOMWindowInner::NoteCalledRegisterForServiceWorkerScope(
const nsACString& aScope) {
nsGlobalWindowInner::Cast(this)->NoteCalledRegisterForServiceWorkerScope(
aScope);
}
void nsPIDOMWindowInner::NoteDOMContentLoaded() {
nsGlobalWindowInner::Cast(this)->NoteDOMContentLoaded();
}
bool nsGlobalWindowInner::ShouldReportForServiceWorkerScope(
const nsAString& aScope) {
bool result = false;
nsPIDOMWindowOuter* topOuter = GetScriptableTop();
NS_ENSURE_TRUE(topOuter, false);
nsGlobalWindowInner* topInner =
nsGlobalWindowInner::Cast(topOuter->GetCurrentInnerWindow());
NS_ENSURE_TRUE(topInner, false);
topInner->ShouldReportForServiceWorkerScopeInternal(
NS_ConvertUTF16toUTF8(aScope), &result);
return result;
}
already_AddRefed<InstallTriggerImpl> nsGlobalWindowInner::GetInstallTrigger() {
if (!mInstallTrigger) {
JS::Rooted<JSObject*> jsImplObj(RootingCx());
ErrorResult rv;
ConstructJSImplementation("@mozilla.org/addons/installtrigger;1", this,
&jsImplObj, rv);
if (rv.Failed()) {
rv.SuppressException();
return nullptr;
}
MOZ_RELEASE_ASSERT(!js::IsWrapper(jsImplObj));
JS::Rooted<JSObject*> jsImplGlobal(RootingCx(),
JS::GetNonCCWObjectGlobal(jsImplObj));
mInstallTrigger = new InstallTriggerImpl(jsImplObj, jsImplGlobal, this);
}
return do_AddRef(mInstallTrigger);
}
nsIDOMWindowUtils* nsGlobalWindowInner::GetWindowUtils(ErrorResult& aRv) {
FORWARD_TO_OUTER_OR_THROW(WindowUtils, (), aRv, nullptr);
}
bool nsGlobalWindowInner::HasOpenerForInitialContentBrowser() {
FORWARD_TO_OUTER(HasOpenerForInitialContentBrowser, (), false);
}
nsGlobalWindowInner::CallState
nsGlobalWindowInner::ShouldReportForServiceWorkerScopeInternal(
const nsACString& aScope, bool* aResultOut) {
MOZ_DIAGNOSTIC_ASSERT(aResultOut);
// First check to see if this window is controlled. If so, then we have
// found a match and are done.
const Maybe<ServiceWorkerDescriptor> swd = GetController();
if (swd.isSome() && swd.ref().Scope() == aScope) {
*aResultOut = true;
return CallState::Stop;
}
// Next, check to see if this window has called
// navigator.serviceWorker.register() for this scope. If so, then treat this
// as a match so console reports appear in the devtools console.
if (mClientSource &&
mClientSource->CalledRegisterForServiceWorkerScope(aScope)) {
*aResultOut = true;
return CallState::Stop;
}
// Finally check the current docshell nsILoadGroup to see if there are any
// outstanding navigation requests. If so, match the scope against the
// channel's URL. We want to show console reports during the FetchEvent
// intercepting the navigation itself.
nsCOMPtr<nsIDocumentLoader> loader(do_QueryInterface(GetDocShell()));
if (loader) {
nsCOMPtr<nsILoadGroup> loadgroup;
Unused << loader->GetLoadGroup(getter_AddRefs(loadgroup));
if (loadgroup) {
nsCOMPtr<nsISimpleEnumerator> iter;
Unused << loadgroup->GetRequests(getter_AddRefs(iter));
if (iter) {
nsCOMPtr<nsISupports> tmp;
bool hasMore = true;
// Check each network request in the load group.
while (NS_SUCCEEDED(iter->HasMoreElements(&hasMore)) && hasMore) {
iter->GetNext(getter_AddRefs(tmp));
nsCOMPtr<nsIChannel> loadingChannel(do_QueryInterface(tmp));
// Ignore subresource requests. Logging for a subresource
// FetchEvent should be handled above since the client is
// already controlled.
if (!loadingChannel ||
!nsContentUtils::IsNonSubresourceRequest(loadingChannel)) {
continue;
}
nsCOMPtr<nsIURI> loadingURL;
Unused << loadingChannel->GetURI(getter_AddRefs(loadingURL));
if (!loadingURL) {
continue;
}
nsAutoCString loadingSpec;
Unused << loadingURL->GetSpec(loadingSpec);
// Perform a simple substring comparison to match the scope
// against the channel URL.
if (StringBeginsWith(loadingSpec, aScope)) {
*aResultOut = true;
return CallState::Stop;
}
}
}
}
}
// The current window doesn't care about this service worker, but maybe
// one of our child frames does.
return CallOnChildren(
&nsGlobalWindowInner::ShouldReportForServiceWorkerScopeInternal, aScope,
aResultOut);
}
void nsGlobalWindowInner::NoteCalledRegisterForServiceWorkerScope(
const nsACString& aScope) {
if (!mClientSource) {
return;
}
mClientSource->NoteCalledRegisterForServiceWorkerScope(aScope);
}
void nsGlobalWindowInner::NoteDOMContentLoaded() {
if (!mClientSource) {
return;
}
mClientSource->NoteDOMContentLoaded();
}
void nsGlobalWindowInner::UpdateTopInnerWindow() {
if (IsTopInnerWindow() || !mTopInnerWindow) {
return;
}
mTopInnerWindow->UpdateWebSocketCount(-(int32_t)mNumOfOpenWebSockets);
}
void nsPIDOMWindowInner::AddPeerConnection() {
MOZ_ASSERT(NS_IsMainThread());
mTopInnerWindow ? mTopInnerWindow->mActivePeerConnections++
: mActivePeerConnections++;
}
void nsPIDOMWindowInner::RemovePeerConnection() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mTopInnerWindow ? mTopInnerWindow->mActivePeerConnections
: mActivePeerConnections);
mTopInnerWindow ? mTopInnerWindow->mActivePeerConnections--
: mActivePeerConnections--;
}
bool nsPIDOMWindowInner::HasActivePeerConnections() {
MOZ_ASSERT(NS_IsMainThread());
return mTopInnerWindow ? mTopInnerWindow->mActivePeerConnections
: mActivePeerConnections;
}
bool nsPIDOMWindowInner::IsPlayingAudio() {
for (uint32_t i = 0; i < mAudioContexts.Length(); i++) {
if (mAudioContexts[i]->IsRunning()) {
return true;
}
}
RefPtr<AudioChannelService> acs = AudioChannelService::Get();
if (!acs) {
return false;
}
auto outer = GetOuterWindow();
if (!outer) {
// We've been unlinked and are about to die. Not a good time to pretend to
// be playing audio.
return false;
}
return acs->IsWindowActive(outer);
}
bool nsPIDOMWindowInner::IsDocumentLoaded() const { return mIsDocumentLoaded; }
mozilla::dom::TimeoutManager& nsPIDOMWindowInner::TimeoutManager() {
return *mTimeoutManager;
}
bool nsPIDOMWindowInner::IsRunningTimeout() {
return TimeoutManager().IsRunningTimeout();
}
void nsPIDOMWindowInner::TryToCacheTopInnerWindow() {
if (mHasTriedToCacheTopInnerWindow) {
return;
}
nsGlobalWindowInner* window = nsGlobalWindowInner::Cast(this);
MOZ_ASSERT(!window->IsDying());
mHasTriedToCacheTopInnerWindow = true;
MOZ_ASSERT(window);
if (nsCOMPtr<nsPIDOMWindowOuter> topOutter = window->GetScriptableTop()) {
mTopInnerWindow = topOutter->GetCurrentInnerWindow();
}
}
void nsPIDOMWindowInner::UpdateActiveIndexedDBTransactionCount(int32_t aDelta) {
MOZ_ASSERT(NS_IsMainThread());
if (aDelta == 0) {
return;
}
TabGroup()->IndexedDBTransactionCounter() += aDelta;
}
void nsPIDOMWindowInner::UpdateActiveIndexedDBDatabaseCount(int32_t aDelta) {
MOZ_ASSERT(NS_IsMainThread());
if (aDelta == 0) {
return;
}
// We count databases but not transactions because only active databases
// could block throttling.
uint32_t& counter = mTopInnerWindow
? mTopInnerWindow->mNumOfIndexedDBDatabases
: mNumOfIndexedDBDatabases;
counter += aDelta;
TabGroup()->IndexedDBDatabaseCounter() += aDelta;
}
bool nsPIDOMWindowInner::HasActiveIndexedDBDatabases() {
MOZ_ASSERT(NS_IsMainThread());
return mTopInnerWindow ? mTopInnerWindow->mNumOfIndexedDBDatabases > 0
: mNumOfIndexedDBDatabases > 0;
}
void nsPIDOMWindowInner::UpdateWebSocketCount(int32_t aDelta) {
MOZ_ASSERT(NS_IsMainThread());
if (aDelta == 0) {
return;
}
if (mTopInnerWindow && !IsTopInnerWindow()) {
mTopInnerWindow->UpdateWebSocketCount(aDelta);
}
MOZ_DIAGNOSTIC_ASSERT(
aDelta > 0 || ((aDelta + mNumOfOpenWebSockets) < mNumOfOpenWebSockets));
mNumOfOpenWebSockets += aDelta;
}
bool nsPIDOMWindowInner::HasOpenWebSockets() const {
MOZ_ASSERT(NS_IsMainThread());
return mNumOfOpenWebSockets ||
(mTopInnerWindow && mTopInnerWindow->mNumOfOpenWebSockets);
}
void nsPIDOMWindowInner::SetAudioCapture(bool aCapture) {
RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
if (service) {
service->SetWindowAudioCaptured(GetOuterWindow(), mWindowID, aCapture);
}
}
void nsPIDOMWindowInner::SetActiveLoadingState(bool aIsLoading) {
if (!nsGlobalWindowInner::Cast(this)->IsChromeWindow()) {
mTimeoutManager->SetLoading(aIsLoading);
}
if (!aIsLoading) {
for (uint32_t i = 0; i < mAfterLoadRunners.Length(); ++i) {
NS_DispatchToCurrentThread(mAfterLoadRunners[i].forget());
}
mAfterLoadRunners.Clear();
}
}
void nsPIDOMWindowInner::AddAfterLoadRunner(nsIRunnable* aRunner) {
mAfterLoadRunners.AppendElement(aRunner);
}
// nsISpeechSynthesisGetter
#ifdef MOZ_WEBSPEECH
SpeechSynthesis* nsGlobalWindowInner::GetSpeechSynthesis(ErrorResult& aError) {
if (!mSpeechSynthesis) {
mSpeechSynthesis = new SpeechSynthesis(this);
}
return mSpeechSynthesis;
}
bool nsGlobalWindowInner::HasActiveSpeechSynthesis() {
if (mSpeechSynthesis) {
return !mSpeechSynthesis->HasEmptyQueue();
}
return false;
}
#endif
Nullable<WindowProxyHolder> nsGlobalWindowInner::GetParent(
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetParentOuter, (), aError, nullptr);
}
/**
* GetScriptableParent is called when script reads window.parent.
*
* In contrast to GetRealParent, GetScriptableParent respects <iframe
* mozbrowser> boundaries, so if |this| is contained by an <iframe
* mozbrowser>, we will return |this| as its own parent.
*/
nsPIDOMWindowOuter* nsGlobalWindowInner::GetScriptableParent() {
FORWARD_TO_OUTER(GetScriptableParent, (), nullptr);
}
/**
* GetScriptableTop is called when script reads window.top.
*
* In contrast to GetRealTop, GetScriptableTop respects <iframe mozbrowser>
* boundaries. If we encounter a window owned by an <iframe mozbrowser> while
* walking up the window hierarchy, we'll stop and return that window.
*/
nsPIDOMWindowOuter* nsGlobalWindowInner::GetScriptableTop() {
FORWARD_TO_OUTER(GetScriptableTop, (), nullptr);
}
void nsGlobalWindowInner::GetContent(JSContext* aCx,
JS::MutableHandle<JSObject*> aRetval,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetContentOuter,
(aCx, aRetval, aCallerType, aError), aError, );
}
BarProp* nsGlobalWindowInner::GetMenubar(ErrorResult& aError) {
if (!mMenubar) {
mMenubar = new MenubarProp(this);
}
return mMenubar;
}
BarProp* nsGlobalWindowInner::GetToolbar(ErrorResult& aError) {
if (!mToolbar) {
mToolbar = new ToolbarProp(this);
}
return mToolbar;
}
BarProp* nsGlobalWindowInner::GetLocationbar(ErrorResult& aError) {
if (!mLocationbar) {
mLocationbar = new LocationbarProp(this);
}
return mLocationbar;
}
BarProp* nsGlobalWindowInner::GetPersonalbar(ErrorResult& aError) {
if (!mPersonalbar) {
mPersonalbar = new PersonalbarProp(this);
}
return mPersonalbar;
}
BarProp* nsGlobalWindowInner::GetStatusbar(ErrorResult& aError) {
if (!mStatusbar) {
mStatusbar = new StatusbarProp(this);
}
return mStatusbar;
}
BarProp* nsGlobalWindowInner::GetScrollbars(ErrorResult& aError) {
if (!mScrollbars) {
mScrollbars = new ScrollbarsProp(this);
}
return mScrollbars;
}
bool nsGlobalWindowInner::GetClosed(ErrorResult& aError) {
// If we're called from JS (which is the only way we should be getting called
// here) and we reach this point, that means our JS global is the current
// target of the WindowProxy, which means that we are the "current inner"
// of our outer. So if FORWARD_TO_OUTER fails to forward, that means the
// outer is already torn down, which corresponds to the closed state.
FORWARD_TO_OUTER(GetClosedOuter, (), true);
}
nsDOMWindowList* nsGlobalWindowInner::GetFrames() {
FORWARD_TO_OUTER(GetFrames, (), nullptr);
}
already_AddRefed<nsPIDOMWindowOuter> nsGlobalWindowInner::IndexedGetter(
uint32_t aIndex) {
FORWARD_TO_OUTER(IndexedGetterOuter, (aIndex), nullptr);
}
namespace {
struct InterfaceShimEntry {
const char* geckoName;
const char* domName;
};
} // anonymous namespace
// We add shims from Components.interfaces.nsIDOMFoo to window.Foo for each
// interface that has interface constants that sites might be getting off
// of Ci.
const InterfaceShimEntry kInterfaceShimMap[] = {
{"nsIXMLHttpRequest", "XMLHttpRequest"},
{"nsIDOMDOMException", "DOMException"},
{"nsIDOMNode", "Node"},
{"nsIDOMCSSRule", "CSSRule"},
{"nsIDOMEvent", "Event"},
{"nsIDOMNSEvent", "Event"},
{"nsIDOMKeyEvent", "KeyEvent"},
{"nsIDOMMouseEvent", "MouseEvent"},
{"nsIDOMMouseScrollEvent", "MouseScrollEvent"},
{"nsIDOMMutationEvent", "MutationEvent"},
{"nsIDOMUIEvent", "UIEvent"},
{"nsIDOMHTMLMediaElement", "HTMLMediaElement"},
{"nsIDOMRange", "Range"},
{"nsIDOMSVGLength", "SVGLength"},
// Think about whether Ci.nsINodeFilter can just go away for websites!
{"nsIDOMNodeFilter", "NodeFilter"},
{"nsIDOMXPathResult", "XPathResult"}};
bool nsGlobalWindowInner::ResolveComponentsShim(
JSContext* aCx, JS::Handle<JSObject*> aGlobal,
JS::MutableHandle<JS::PropertyDescriptor> aDesc) {
// Keep track of how often this happens.
Telemetry::Accumulate(Telemetry::COMPONENTS_SHIM_ACCESSED_BY_CONTENT, true);
// Warn once.
nsCOMPtr<Document> doc = GetExtantDoc();
if (doc) {
doc->WarnOnceAbout(Document::eComponents, /* asError = */ true);
}
// Create a fake Components object.
AssertSameCompartment(aCx, aGlobal);
JS::Rooted<JSObject*> components(aCx, JS_NewPlainObject(aCx));
if (NS_WARN_IF(!components)) {
return false;
}
// Create a fake interfaces object.
JS::Rooted<JSObject*> interfaces(aCx, JS_NewPlainObject(aCx));
if (NS_WARN_IF(!interfaces)) {
return false;
}
bool ok =
JS_DefineProperty(aCx, components, "interfaces", interfaces,
JSPROP_ENUMERATE | JSPROP_PERMANENT | JSPROP_READONLY);
if (NS_WARN_IF(!ok)) {
return false;
}
// Define a bunch of shims from the Ci.nsIDOMFoo to window.Foo for DOM
// interfaces with constants.
for (uint32_t i = 0; i < ArrayLength(kInterfaceShimMap); ++i) {
// Grab the names from the table.
const char* geckoName = kInterfaceShimMap[i].geckoName;
const char* domName = kInterfaceShimMap[i].domName;
// Look up the appopriate interface object on the global.
JS::Rooted<JS::Value> v(aCx, JS::UndefinedValue());
ok = JS_GetProperty(aCx, aGlobal, domName, &v);
if (NS_WARN_IF(!ok)) {
return false;
}
if (!v.isObject()) {
NS_WARNING("Unable to find interface object on global");
continue;
}
// Define the shim on the interfaces object.
ok = JS_DefineProperty(
aCx, interfaces, geckoName, v,
JSPROP_ENUMERATE | JSPROP_PERMANENT | JSPROP_READONLY);
if (NS_WARN_IF(!ok)) {
return false;
}
}
FillPropertyDescriptor(aDesc, aGlobal, JS::ObjectValue(*components), false);
return true;
}
#ifdef RELEASE_OR_BETA
# define USE_CONTROLLERS_SHIM
#endif
#ifdef USE_CONTROLLERS_SHIM
static const JSClass ControllersShimClass = {"Controllers", 0};
static const JSClass XULControllersShimClass = {"XULControllers", 0};
#endif
bool nsGlobalWindowInner::DoResolve(
JSContext* aCx, JS::Handle<JSObject*> aObj, JS::Handle<jsid> aId,
JS::MutableHandle<JS::PropertyDescriptor> aDesc) {
// Note: Keep this in sync with MayResolve.
// Note: The infallibleInit call in GlobalResolve depends on this check.
if (!JSID_IS_STRING(aId)) {
return true;
}
bool found;
if (!WebIDLGlobalNameHash::DefineIfEnabled(aCx, aObj, aId, aDesc, &found)) {
return false;
}
if (found) {
return true;
}
// We support a cut-down Components.interfaces in case websites are
// using Components.interfaces.nsIFoo.CONSTANT_NAME for the ones
// that have constants.
static bool watchingComponentsPref = false;
static bool useComponentsShim = false;
if (!watchingComponentsPref) {
watchingComponentsPref = true;
Preferences::AddBoolVarCache(&useComponentsShim, "dom.use_components_shim",
true);
}
if (useComponentsShim &&
aId == XPCJSRuntime::Get()->GetStringID(XPCJSContext::IDX_COMPONENTS)) {
return ResolveComponentsShim(aCx, aObj, aDesc);
}
// We also support a "window.controllers" thing; apparently some
// sites use it for browser-sniffing. See bug 1010577.
#ifdef USE_CONTROLLERS_SHIM
// Note: We use |aObj| rather than |this| to get the principal here, because
// this is called during Window setup when the Document isn't necessarily
// hooked up yet.
if ((aId == XPCJSRuntime::Get()->GetStringID(XPCJSContext::IDX_CONTROLLERS) ||
aId == XPCJSRuntime::Get()->GetStringID(
XPCJSContext::IDX_CONTROLLERS_CLASS)) &&
!xpc::IsXrayWrapper(aObj) &&
!nsContentUtils::IsSystemPrincipal(
nsContentUtils::ObjectPrincipal(aObj))) {
if (GetExtantDoc()) {
GetExtantDoc()->WarnOnceAbout(Document::eWindow_Cc_ontrollers);
}
const JSClass* clazz;
if (aId ==
XPCJSRuntime::Get()->GetStringID(XPCJSContext::IDX_CONTROLLERS)) {
clazz = &XULControllersShimClass;
} else {
clazz = &ControllersShimClass;
}
MOZ_ASSERT(JS_IsGlobalObject(aObj));
JS::Rooted<JSObject*> shim(aCx, JS_NewObject(aCx, clazz));
if (NS_WARN_IF(!shim)) {
return false;
}
FillPropertyDescriptor(aDesc, aObj, JS::ObjectValue(*shim),
/* readOnly = */ false);
return true;
}
#endif
return true;
}
/* static */
bool nsGlobalWindowInner::MayResolve(jsid aId) {
// Note: This function does not fail and may not have any side-effects.
// Note: Keep this in sync with DoResolve.
if (!JSID_IS_STRING(aId)) {
return false;
}
if (aId == XPCJSRuntime::Get()->GetStringID(XPCJSContext::IDX_COMPONENTS)) {
return true;
}
if (aId == XPCJSRuntime::Get()->GetStringID(XPCJSContext::IDX_CONTROLLERS) ||
aId == XPCJSRuntime::Get()->GetStringID(
XPCJSContext::IDX_CONTROLLERS_CLASS)) {
// We only resolve .controllers/.Controllers in release builds and on
// non-chrome windows, but let's not worry about any of that stuff.
return true;
}
return WebIDLGlobalNameHash::MayResolve(aId);
}
void nsGlobalWindowInner::GetOwnPropertyNames(
JSContext* aCx, JS::MutableHandleVector<jsid> aNames, bool aEnumerableOnly,
ErrorResult& aRv) {
if (aEnumerableOnly) {
// The names we would return from here get defined on the window via one of
// two codepaths. The ones coming from the WebIDLGlobalNameHash will end up
// in the DefineConstructor function in BindingUtils, which always defines
// things as non-enumerable. The ones coming from the script namespace
// manager get defined by our resolve hook using FillPropertyDescriptor with
// 0 for the property attributes, so non-enumerable as well.
//
// So in the aEnumerableOnly case we have nothing to do.
return;
}
// "Components" is marked as enumerable but only resolved on demand :-/.
// aNames.AppendElement(NS_LITERAL_STRING("Components"));
JS::Rooted<JSObject*> wrapper(aCx, GetWrapper());
// There are actually two ways we can get called here: For normal
// enumeration or for Xray enumeration. In the latter case, we want to
// return all possible WebIDL names, because we don't really support
// deleting these names off our Xray; trying to resolve them will just make
// them come back. In the former case, we want to avoid returning deleted
// names. But the JS engine already knows about the non-deleted
// already-resolved names, so we can just return the so-far-unresolved ones.
//
// We can tell which case we're in by whether aCx is in our wrapper's
// compartment. If not, we're in the Xray case.
WebIDLGlobalNameHash::NameType nameType =
js::IsObjectInContextCompartment(wrapper, aCx)
? WebIDLGlobalNameHash::UnresolvedNamesOnly
: WebIDLGlobalNameHash::AllNames;
if (!WebIDLGlobalNameHash::GetNames(aCx, wrapper, nameType, aNames)) {
aRv.NoteJSContextException(aCx);
}
}
/* static */
bool nsGlobalWindowInner::IsPrivilegedChromeWindow(JSContext* aCx,
JSObject* aObj) {
// For now, have to deal with XPConnect objects here.
nsGlobalWindowInner* win = xpc::WindowOrNull(aObj);
return win && win->IsChromeWindow() &&
nsContentUtils::ObjectPrincipal(aObj) ==
nsContentUtils::GetSystemPrincipal();
}
/* static */
bool nsGlobalWindowInner::OfflineCacheAllowedForContext(JSContext* aCx,
JSObject* aObj) {
return IsSecureContextOrObjectIsFromSecureContext(aCx, aObj) ||
Preferences::GetBool("browser.cache.offline.insecure.enable");
}
/* static */
bool nsGlobalWindowInner::IsRequestIdleCallbackEnabled(JSContext* aCx,
JSObject* aObj) {
// The requestIdleCallback should always be enabled for system code.
return StaticPrefs::dom_requestIdleCallback_enabled() ||
nsContentUtils::IsSystemCaller(aCx);
}
/* static */
bool nsGlobalWindowInner::RegisterProtocolHandlerAllowedForContext(
JSContext* aCx, JSObject* aObj) {
return IsSecureContextOrObjectIsFromSecureContext(aCx, aObj) ||
Preferences::GetBool("dom.registerProtocolHandler.insecure.enabled");
}
/* static */
bool nsGlobalWindowInner::DeviceSensorsEnabled(JSContext* aCx, JSObject* aObj) {
return Preferences::GetBool("device.sensors.enabled");
}
nsDOMOfflineResourceList* nsGlobalWindowInner::GetApplicationCache(
ErrorResult& aError) {
if (!mApplicationCache) {
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(GetDocShell()));
if (!webNav || !mDoc) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
nsCOMPtr<nsIURI> uri;
aError = webNav->GetCurrentURI(getter_AddRefs(uri));
if (aError.Failed()) {
return nullptr;
}
nsCOMPtr<nsIURI> manifestURI;
nsContentUtils::GetOfflineAppManifest(mDoc, getter_AddRefs(manifestURI));
RefPtr<nsDOMOfflineResourceList> applicationCache =
new nsDOMOfflineResourceList(manifestURI, uri, mDoc->NodePrincipal(),
this);
applicationCache->Init();
mApplicationCache = applicationCache;
}
return mApplicationCache;
}
nsDOMOfflineResourceList* nsGlobalWindowInner::GetApplicationCache() {
return GetApplicationCache(IgnoreErrors());
}
Crypto* nsGlobalWindowInner::GetCrypto(ErrorResult& aError) {
if (!mCrypto) {
mCrypto = new Crypto(this);
}
return mCrypto;
}
mozilla::dom::U2F* nsGlobalWindowInner::GetU2f(ErrorResult& aError) {
if (!mU2F) {
RefPtr<U2F> u2f = new U2F(this);
u2f->Init(aError);
if (NS_WARN_IF(aError.Failed())) {
return nullptr;
}
mU2F = u2f;
}
return mU2F;
}
nsIControllers* nsGlobalWindowInner::GetControllers(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetControllersOuter, (aError), aError, nullptr);
}
nsresult nsGlobalWindowInner::GetControllers(nsIControllers** aResult) {
ErrorResult rv;
nsCOMPtr<nsIControllers> controllers = GetControllers(rv);
controllers.forget(aResult);
return rv.StealNSResult();
}
nsPIDOMWindowOuter* nsGlobalWindowInner::GetOpenerWindow(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetOpenerWindowOuter, (), aError, nullptr);
}
void nsGlobalWindowInner::GetOpener(JSContext* aCx,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aError) {
nsCOMPtr<nsPIDOMWindowOuter> opener = GetOpenerWindow(aError);
if (aError.Failed() || !opener) {
aRetval.setNull();
return;
}
aError = nsContentUtils::WrapNative(aCx, opener, aRetval);
}
void nsGlobalWindowInner::SetOpener(JSContext* aCx,
JS::Handle<JS::Value> aOpener,
ErrorResult& aError) {
if (aOpener.isNull()) {
FORWARD_TO_OUTER_VOID(SetOpenerWindow, (nullptr, false));
return;
}
// If something other than null is passed, just define aOpener on our inner
// window's JS object, wrapped into the current compartment so that for Xrays
// we define on the Xray expando object, but don't set it on the outer window,
// so that it'll get reset on navigation. This is just like replaceable
// properties, but we're not quite readonly.
RedefineProperty(aCx, "opener", aOpener, aError);
}
void nsGlobalWindowInner::GetEvent(JSContext* aCx,
JS::MutableHandle<JS::Value> aRetval) {
if (mEvent) {
Unused << nsContentUtils::WrapNative(aCx, mEvent, aRetval);
} else {
aRetval.setUndefined();
}
}
void nsGlobalWindowInner::GetStatus(nsAString& aStatus, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetStatusOuter, (aStatus), aError, );
}
void nsGlobalWindowInner::SetStatus(const nsAString& aStatus,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetStatusOuter, (aStatus), aError, );
}
void nsGlobalWindowInner::GetName(nsAString& aName, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetNameOuter, (aName), aError, );
}
void nsGlobalWindowInner::SetName(const nsAString& aName,
mozilla::ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetNameOuter, (aName, aError), aError, );
}
int32_t nsGlobalWindowInner::GetInnerWidth(CallerType aCallerType,
ErrorResult& aError) {
// We ignore aCallerType; we only have that argument because some other things
// called by GetReplaceableWindowCoord need it. If this ever changes, fix
// nsresult nsGlobalWindowInner::GetInnerWidth(int32_t* aInnerWidth)
// to actually take a useful CallerType and pass it in here.
FORWARD_TO_OUTER_OR_THROW(GetInnerWidthOuter, (aError), aError, 0);
}
void nsGlobalWindowInner::GetInnerWidth(JSContext* aCx,
JS::MutableHandle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
GetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::GetInnerWidth, aValue,
aCallerType, aError);
}
nsresult nsGlobalWindowInner::GetInnerWidth(int32_t* aInnerWidth) {
ErrorResult rv;
// Callee doesn't care about the caller type, but play it safe.
*aInnerWidth = GetInnerWidth(CallerType::NonSystem, rv);
return rv.StealNSResult();
}
void nsGlobalWindowInner::SetInnerWidth(int32_t aInnerWidth,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetInnerWidthOuter,
(aInnerWidth, aCallerType, aError), aError, );
}
void nsGlobalWindowInner::SetInnerWidth(JSContext* aCx,
JS::Handle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
SetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::SetInnerWidth, aValue,
"innerWidth", aCallerType, aError);
}
int32_t nsGlobalWindowInner::GetInnerHeight(CallerType aCallerType,
ErrorResult& aError) {
// We ignore aCallerType; we only have that argument because some other things
// called by GetReplaceableWindowCoord need it. If this ever changes, fix
// nsresult nsGlobalWindowInner::GetInnerHeight(int32_t* aInnerWidth)
// to actually take a useful CallerType and pass it in here.
FORWARD_TO_OUTER_OR_THROW(GetInnerHeightOuter, (aError), aError, 0);
}
void nsGlobalWindowInner::GetInnerHeight(JSContext* aCx,
JS::MutableHandle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
GetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::GetInnerHeight, aValue,
aCallerType, aError);
}
nsresult nsGlobalWindowInner::GetInnerHeight(int32_t* aInnerHeight) {
ErrorResult rv;
// Callee doesn't care about the caller type, but play it safe.
*aInnerHeight = GetInnerHeight(CallerType::NonSystem, rv);
return rv.StealNSResult();
}
void nsGlobalWindowInner::SetInnerHeight(int32_t aInnerHeight,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetInnerHeightOuter,
(aInnerHeight, aCallerType, aError), aError, );
}
void nsGlobalWindowInner::SetInnerHeight(JSContext* aCx,
JS::Handle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
SetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::SetInnerHeight, aValue,
"innerHeight", aCallerType, aError);
}
int32_t nsGlobalWindowInner::GetOuterWidth(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetOuterWidthOuter, (aCallerType, aError), aError,
0);
}
void nsGlobalWindowInner::GetOuterWidth(JSContext* aCx,
JS::MutableHandle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
GetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::GetOuterWidth, aValue,
aCallerType, aError);
}
int32_t nsGlobalWindowInner::GetOuterHeight(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetOuterHeightOuter, (aCallerType, aError), aError,
0);
}
void nsGlobalWindowInner::GetOuterHeight(JSContext* aCx,
JS::MutableHandle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
GetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::GetOuterHeight, aValue,
aCallerType, aError);
}
void nsGlobalWindowInner::SetOuterWidth(int32_t aOuterWidth,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetOuterWidthOuter,
(aOuterWidth, aCallerType, aError), aError, );
}
void nsGlobalWindowInner::SetOuterWidth(JSContext* aCx,
JS::Handle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
SetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::SetOuterWidth, aValue,
"outerWidth", aCallerType, aError);
}
void nsGlobalWindowInner::SetOuterHeight(int32_t aOuterHeight,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetOuterHeightOuter,
(aOuterHeight, aCallerType, aError), aError, );
}
void nsGlobalWindowInner::SetOuterHeight(JSContext* aCx,
JS::Handle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
SetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::SetOuterHeight, aValue,
"outerHeight", aCallerType, aError);
}
int32_t nsGlobalWindowInner::GetScreenX(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScreenXOuter, (aCallerType, aError), aError, 0);
}
void nsGlobalWindowInner::GetScreenX(JSContext* aCx,
JS::MutableHandle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
GetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::GetScreenX, aValue,
aCallerType, aError);
}
float nsGlobalWindowInner::GetMozInnerScreenX(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetMozInnerScreenXOuter, (aCallerType), aError, 0);
}
float nsGlobalWindowInner::GetMozInnerScreenY(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetMozInnerScreenYOuter, (aCallerType), aError, 0);
}
double nsGlobalWindowInner::GetDevicePixelRatio(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetDevicePixelRatioOuter, (aCallerType), aError,
0.0);
}
uint64_t nsGlobalWindowInner::GetMozPaintCount(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetMozPaintCountOuter, (), aError, 0);
}
int32_t nsGlobalWindowInner::RequestAnimationFrame(
FrameRequestCallback& aCallback, ErrorResult& aError) {
if (!mDoc) {
return 0;
}
if (GetWrapperPreserveColor()) {
js::NotifyAnimationActivity(GetWrapperPreserveColor());
}
int32_t handle;
aError = mDoc->ScheduleFrameRequestCallback(aCallback, &handle);
return handle;
}
void nsGlobalWindowInner::CancelAnimationFrame(int32_t aHandle,
ErrorResult& aError) {
if (!mDoc) {
return;
}
mDoc->CancelFrameRequestCallback(aHandle);
}
already_AddRefed<MediaQueryList> nsGlobalWindowInner::MatchMedia(
const nsAString& aMediaQueryList, CallerType aCallerType,
ErrorResult& aError) {
// FIXME: This whole forward-to-outer and then get a pres
// shell/context off the docshell dance is sort of silly; it'd make
// more sense to forward to the inner, but it's what everyone else
// (GetSelection, GetScrollXY, etc.) does around here.
FORWARD_TO_OUTER_OR_THROW(MatchMediaOuter, (aMediaQueryList, aCallerType),
aError, nullptr);
}
void nsGlobalWindowInner::SetScreenX(int32_t aScreenX, CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetScreenXOuter, (aScreenX, aCallerType, aError),
aError, );
}
void nsGlobalWindowInner::SetScreenX(JSContext* aCx,
JS::Handle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
SetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::SetScreenX, aValue,
"screenX", aCallerType, aError);
}
int32_t nsGlobalWindowInner::GetScreenY(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScreenYOuter, (aCallerType, aError), aError, 0);
}
void nsGlobalWindowInner::GetScreenY(JSContext* aCx,
JS::MutableHandle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
GetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::GetScreenY, aValue,
aCallerType, aError);
}
void nsGlobalWindowInner::SetScreenY(int32_t aScreenY, CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetScreenYOuter, (aScreenY, aCallerType, aError),
aError, );
}
void nsGlobalWindowInner::SetScreenY(JSContext* aCx,
JS::Handle<JS::Value> aValue,
CallerType aCallerType,
ErrorResult& aError) {
SetReplaceableWindowCoord(aCx, &nsGlobalWindowInner::SetScreenY, aValue,
"screenY", aCallerType, aError);
}
int32_t nsGlobalWindowInner::GetScrollMinX(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideLeft), aError, 0);
}
int32_t nsGlobalWindowInner::GetScrollMinY(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideTop), aError, 0);
}
int32_t nsGlobalWindowInner::GetScrollMaxX(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideRight), aError, 0);
}
int32_t nsGlobalWindowInner::GetScrollMaxY(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideBottom), aError, 0);
}
double nsGlobalWindowInner::GetScrollX(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScrollXOuter, (), aError, 0);
}
double nsGlobalWindowInner::GetScrollY(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetScrollYOuter, (), aError, 0);
}
uint32_t nsGlobalWindowInner::Length() { FORWARD_TO_OUTER(Length, (), 0); }
Nullable<WindowProxyHolder> nsGlobalWindowInner::GetTop(
mozilla::ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetTopOuter, (), aError, nullptr);
}
already_AddRefed<BrowsingContext> nsGlobalWindowInner::GetChildWindow(
const nsAString& aName) {
if (GetOuterWindowInternal()) {
return GetOuterWindowInternal()->GetChildWindow(aName);
}
return nullptr;
}
void nsGlobalWindowInner::RefreshRealmPrincipal() {
JS::SetRealmPrincipals(js::GetNonCCWObjectRealm(GetWrapperPreserveColor()),
nsJSPrincipals::get(mDoc->NodePrincipal()));
}
already_AddRefed<nsIWidget> nsGlobalWindowInner::GetMainWidget() {
FORWARD_TO_OUTER(GetMainWidget, (), nullptr);
}
nsIWidget* nsGlobalWindowInner::GetNearestWidget() const {
if (GetOuterWindowInternal()) {
return GetOuterWindowInternal()->GetNearestWidget();
}
return nullptr;
}
void nsGlobalWindowInner::SetFullScreen(bool aFullscreen,
mozilla::ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetFullscreenOuter, (aFullscreen, aError), aError,
/* void */);
}
bool nsGlobalWindowInner::GetFullScreen(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetFullscreenOuter, (), aError, false);
}
bool nsGlobalWindowInner::GetFullScreen() {
ErrorResult dummy;
bool fullscreen = GetFullScreen(dummy);
dummy.SuppressException();
return fullscreen;
}
void nsGlobalWindowInner::Dump(const nsAString& aStr) {
if (!DOMPrefs::DumpEnabled()) {
return;
}
char* cstr = ToNewUTF8String(aStr);
#if defined(XP_MACOSX)
// have to convert \r to \n so that printing to the console works
char *c = cstr, *cEnd = cstr + strlen(cstr);
while (c < cEnd) {
if (*c == '\r') *c = '\n';
c++;
}
#endif
if (cstr) {
MOZ_LOG(nsContentUtils::DOMDumpLog(), LogLevel::Debug,
("[Window.Dump] %s", cstr));
#ifdef XP_WIN
PrintToDebugger(cstr);
#endif
#ifdef ANDROID
__android_log_write(ANDROID_LOG_INFO, "GeckoDump", cstr);
#endif
FILE* fp = gDumpFile ? gDumpFile : stdout;
fputs(cstr, fp);
fflush(fp);
free(cstr);
}
}
void nsGlobalWindowInner::Alert(nsIPrincipal& aSubjectPrincipal,
ErrorResult& aError) {
Alert(EmptyString(), aSubjectPrincipal, aError);
}
void nsGlobalWindowInner::Alert(const nsAString& aMessage,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(AlertOuter, (aMessage, aSubjectPrincipal, aError),
aError, );
}
bool nsGlobalWindowInner::Confirm(const nsAString& aMessage,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(ConfirmOuter, (aMessage, aSubjectPrincipal, aError),
aError, false);
}
already_AddRefed<Promise> nsGlobalWindowInner::Fetch(
const RequestOrUSVString& aInput, const RequestInit& aInit,
CallerType aCallerType, ErrorResult& aRv) {
return FetchRequest(this, aInput, aInit, aCallerType, aRv);
}
void nsGlobalWindowInner::Prompt(const nsAString& aMessage,
const nsAString& aInitial, nsAString& aReturn,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(
PromptOuter, (aMessage, aInitial, aReturn, aSubjectPrincipal, aError),
aError, );
}
void nsGlobalWindowInner::Focus(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(FocusOuter, (), aError, );
}
nsresult nsGlobalWindowInner::Focus() {
ErrorResult rv;
Focus(rv);
return rv.StealNSResult();
}
void nsGlobalWindowInner::Blur(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(BlurOuter, (), aError, );
}
void nsGlobalWindowInner::Stop(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(StopOuter, (aError), aError, );
}
/* static */
bool nsGlobalWindowInner::IsWindowPrintEnabled(JSContext*, JSObject*) {
static bool called = false;
static bool printDisabled = false;
if (!called) {
called = true;
Preferences::AddBoolVarCache(&printDisabled, "dom.disable_window_print");
}
return !printDisabled;
}
void nsGlobalWindowInner::Print(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(PrintOuter, (aError), aError, );
}
void nsGlobalWindowInner::MoveTo(int32_t aXPos, int32_t aYPos,
CallerType aCallerType, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(MoveToOuter, (aXPos, aYPos, aCallerType, aError),
aError, );
}
void nsGlobalWindowInner::MoveBy(int32_t aXDif, int32_t aYDif,
CallerType aCallerType, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(MoveByOuter, (aXDif, aYDif, aCallerType, aError),
aError, );
}
void nsGlobalWindowInner::ResizeTo(int32_t aWidth, int32_t aHeight,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(ResizeToOuter,
(aWidth, aHeight, aCallerType, aError), aError, );
}
void nsGlobalWindowInner::ResizeBy(int32_t aWidthDif, int32_t aHeightDif,
CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(
ResizeByOuter, (aWidthDif, aHeightDif, aCallerType, aError), aError, );
}
void nsGlobalWindowInner::SizeToContent(CallerType aCallerType,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SizeToContentOuter, (aCallerType, aError),
aError, );
}
already_AddRefed<nsPIWindowRoot> nsGlobalWindowInner::GetTopWindowRoot() {
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (!outer) {
return nullptr;
}
return outer->GetTopWindowRoot();
}
void nsGlobalWindowInner::Scroll(double aXScroll, double aYScroll) {
// Convert -Inf, Inf, and NaN to 0; otherwise, convert by C-style cast.
auto scrollPos = CSSIntPoint::Truncate(mozilla::ToZeroIfNonfinite(aXScroll),
mozilla::ToZeroIfNonfinite(aYScroll));
ScrollTo(scrollPos, ScrollOptions());
}
void nsGlobalWindowInner::ScrollTo(double aXScroll, double aYScroll) {
// Convert -Inf, Inf, and NaN to 0; otherwise, convert by C-style cast.
auto scrollPos = CSSIntPoint::Truncate(mozilla::ToZeroIfNonfinite(aXScroll),
mozilla::ToZeroIfNonfinite(aYScroll));
ScrollTo(scrollPos, ScrollOptions());
}
void nsGlobalWindowInner::ScrollTo(const ScrollToOptions& aOptions) {
// When scrolling to a non-zero offset, we need to determine whether that
// position is within our scrollable range, so we need updated layout
// information which requires a layout flush, otherwise all we need is to
// flush frames to be able to access our scrollable frame here.
FlushType flushType =
((aOptions.mLeft.WasPassed() && aOptions.mLeft.Value() > 0) ||
(aOptions.mTop.WasPassed() && aOptions.mTop.Value() > 0))
? FlushType::Layout
: FlushType::Frames;
FlushPendingNotifications(flushType);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
CSSIntPoint scrollPos = sf->GetScrollPositionCSSPixels();
if (aOptions.mLeft.WasPassed()) {
scrollPos.x = mozilla::ToZeroIfNonfinite(aOptions.mLeft.Value());
}
if (aOptions.mTop.WasPassed()) {
scrollPos.y = mozilla::ToZeroIfNonfinite(aOptions.mTop.Value());
}
ScrollTo(scrollPos, aOptions);
}
}
void nsGlobalWindowInner::Scroll(const ScrollToOptions& aOptions) {
ScrollTo(aOptions);
}
void nsGlobalWindowInner::ScrollTo(const CSSIntPoint& aScroll,
const ScrollOptions& aOptions) {
// When scrolling to a non-zero offset, we need to determine whether that
// position is within our scrollable range, so we need updated layout
// information which requires a layout flush, otherwise all we need is to
// flush frames to be able to access our scrollable frame here.
FlushType flushType =
(aScroll.x || aScroll.y) ? FlushType::Layout : FlushType::Frames;
FlushPendingNotifications(flushType);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
// Here we calculate what the max pixel value is that we can
// scroll to, we do this by dividing maxint with the pixel to
// twips conversion factor, and subtracting 4, the 4 comes from
// experimenting with this value, anything less makes the view
// code not scroll correctly, I have no idea why. -- jst
const int32_t maxpx = nsPresContext::AppUnitsToIntCSSPixels(0x7fffffff) - 4;
CSSIntPoint scroll(aScroll);
if (scroll.x > maxpx) {
scroll.x = maxpx;
}
if (scroll.y > maxpx) {
scroll.y = maxpx;
}
bool smoothScroll =
sf->GetScrollStyles().IsSmoothScroll(aOptions.mBehavior);
sf->ScrollToCSSPixels(
scroll, smoothScroll ? ScrollMode::SmoothMsd : ScrollMode::Instant);
}
}
void nsGlobalWindowInner::ScrollBy(double aXScrollDif, double aYScrollDif) {
FlushPendingNotifications(FlushType::Layout);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
// It seems like it would make more sense for ScrollBy to use
// SMOOTH mode, but tests seem to depend on the synchronous behaviour.
// Perhaps Web content does too.
ScrollToOptions options;
options.mLeft.Construct(aXScrollDif);
options.mTop.Construct(aYScrollDif);
ScrollBy(options);
}
}
void nsGlobalWindowInner::ScrollBy(const ScrollToOptions& aOptions) {
FlushPendingNotifications(FlushType::Layout);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
CSSIntPoint scrollDelta;
if (aOptions.mLeft.WasPassed()) {
scrollDelta.x = mozilla::ToZeroIfNonfinite(aOptions.mLeft.Value());
}
if (aOptions.mTop.WasPassed()) {
scrollDelta.y = mozilla::ToZeroIfNonfinite(aOptions.mTop.Value());
}
ScrollMode scrollMode = ScrollMode::Instant;
if (aOptions.mBehavior == ScrollBehavior::Smooth) {
scrollMode = ScrollMode::SmoothMsd;
} else if (aOptions.mBehavior == ScrollBehavior::Auto) {
ScrollStyles styles = sf->GetScrollStyles();
if (styles.mScrollBehavior == NS_STYLE_SCROLL_BEHAVIOR_SMOOTH) {
scrollMode = ScrollMode::SmoothMsd;
}
}
sf->ScrollByCSSPixels(scrollDelta, scrollMode, nsGkAtoms::relative);
}
}
void nsGlobalWindowInner::ScrollByLines(int32_t numLines,
const ScrollOptions& aOptions) {
FlushPendingNotifications(FlushType::Layout);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
// It seems like it would make more sense for ScrollByLines to use
// SMOOTH mode, but tests seem to depend on the synchronous behaviour.
// Perhaps Web content does too.
bool smoothScroll =
sf->GetScrollStyles().IsSmoothScroll(aOptions.mBehavior);
sf->ScrollBy(nsIntPoint(0, numLines), nsIScrollableFrame::LINES,
smoothScroll ? ScrollMode::SmoothMsd : ScrollMode::Instant);
}
}
void nsGlobalWindowInner::ScrollByPages(int32_t numPages,
const ScrollOptions& aOptions) {
FlushPendingNotifications(FlushType::Layout);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
// It seems like it would make more sense for ScrollByPages to use
// SMOOTH mode, but tests seem to depend on the synchronous behaviour.
// Perhaps Web content does too.
bool smoothScroll =
sf->GetScrollStyles().IsSmoothScroll(aOptions.mBehavior);
sf->ScrollBy(nsIntPoint(0, numPages), nsIScrollableFrame::PAGES,
smoothScroll ? ScrollMode::SmoothMsd : ScrollMode::Instant);
}
}
void nsGlobalWindowInner::MozScrollSnap() {
FlushPendingNotifications(FlushType::Layout);
nsIScrollableFrame* sf = GetScrollFrame();
if (sf) {
sf->ScrollSnap();
}
}
void nsGlobalWindowInner::ClearTimeout(int32_t aHandle) {
if (aHandle > 0) {
mTimeoutManager->ClearTimeout(aHandle, Timeout::Reason::eTimeoutOrInterval);
}
}
void nsGlobalWindowInner::ClearInterval(int32_t aHandle) {
if (aHandle > 0) {
mTimeoutManager->ClearTimeout(aHandle, Timeout::Reason::eTimeoutOrInterval);
}
}
void nsGlobalWindowInner::SetResizable(bool aResizable) const {
// nop
}
void nsGlobalWindowInner::CaptureEvents() {
if (mDoc) {
mDoc->WarnOnceAbout(Document::eUseOfCaptureEvents);
}
}
void nsGlobalWindowInner::ReleaseEvents() {
if (mDoc) {
mDoc->WarnOnceAbout(Document::eUseOfReleaseEvents);
}
}
Nullable<WindowProxyHolder> nsGlobalWindowInner::Open(const nsAString& aUrl,
const nsAString& aName,
const nsAString& aOptions,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(OpenOuter, (aUrl, aName, aOptions, aError), aError,
nullptr);
}
Nullable<WindowProxyHolder> nsGlobalWindowInner::OpenDialog(
JSContext* aCx, const nsAString& aUrl, const nsAString& aName,
const nsAString& aOptions, const Sequence<JS::Value>& aExtraArgument,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(
OpenDialogOuter, (aCx, aUrl, aName, aOptions, aExtraArgument, aError),
aError, nullptr);
}
BrowsingContext* nsGlobalWindowInner::GetFrames(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetFramesOuter, (), aError, nullptr);
}
void nsGlobalWindowInner::PostMessageMoz(JSContext* aCx,
JS::Handle<JS::Value> aMessage,
const nsAString& aTargetOrigin,
JS::Handle<JS::Value> aTransfer,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(
PostMessageMozOuter,
(aCx, aMessage, aTargetOrigin, aTransfer, aSubjectPrincipal, aError),
aError, );
}
void nsGlobalWindowInner::PostMessageMoz(JSContext* aCx,
JS::Handle<JS::Value> aMessage,
const nsAString& aTargetOrigin,
const Sequence<JSObject*>& aTransfer,
nsIPrincipal& aSubjectPrincipal,
ErrorResult& aRv) {
JS::Rooted<JS::Value> transferArray(aCx, JS::UndefinedValue());
aRv = nsContentUtils::CreateJSValueFromSequenceOfObject(aCx, aTransfer,
&transferArray);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
PostMessageMoz(aCx, aMessage, aTargetOrigin, transferArray, aSubjectPrincipal,
aRv);
}
void nsGlobalWindowInner::PostMessageMoz(
JSContext* aCx, JS::Handle<JS::Value> aMessage,
const WindowPostMessageOptions& aOptions, nsIPrincipal& aSubjectPrincipal,
ErrorResult& aRv) {
JS::Rooted<JS::Value> transferArray(aCx, JS::UndefinedValue());
aRv = nsContentUtils::CreateJSValueFromSequenceOfObject(
aCx, aOptions.mTransfer, &transferArray);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
PostMessageMoz(aCx, aMessage, aOptions.mTargetOrigin, transferArray,
aSubjectPrincipal, aRv);
}
void nsGlobalWindowInner::Close(CallerType aCallerType, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(CloseOuter, (aCallerType == CallerType::System),
aError, );
}
nsresult nsGlobalWindowInner::Close() {
FORWARD_TO_OUTER(Close, (), NS_ERROR_UNEXPECTED);
}
bool nsGlobalWindowInner::IsInModalState() {
FORWARD_TO_OUTER(IsInModalState, (), false);
}
// static
void nsGlobalWindowInner::NotifyDOMWindowDestroyed(
nsGlobalWindowInner* aWindow) {
nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
if (observerService) {
observerService->NotifyObservers(ToSupports(aWindow),
DOM_WINDOW_DESTROYED_TOPIC, nullptr);
}
}
void nsGlobalWindowInner::NotifyWindowIDDestroyed(const char* aTopic) {
nsCOMPtr<nsIRunnable> runnable =
new WindowDestroyedEvent(this, mWindowID, aTopic);
Dispatch(TaskCategory::Other, runnable.forget());
}
// static
void nsGlobalWindowInner::NotifyDOMWindowFrozen(nsGlobalWindowInner* aWindow) {
if (aWindow) {
nsCOMPtr<nsIObserverService> observerService =
services::GetObserverService();
if (observerService) {
observerService->NotifyObservers(ToSupports(aWindow),
DOM_WINDOW_FROZEN_TOPIC, nullptr);
}
}
}
// static
void nsGlobalWindowInner::NotifyDOMWindowThawed(nsGlobalWindowInner* aWindow) {
if (aWindow) {
nsCOMPtr<nsIObserverService> observerService =
services::GetObserverService();
if (observerService) {
observerService->NotifyObservers(ToSupports(aWindow),
DOM_WINDOW_THAWED_TOPIC, nullptr);
}
}
}
JSObject* nsGlobalWindowInner::GetCachedXBLPrototypeHandler(
nsXBLPrototypeHandler* aKey) {
JS::Rooted<JSObject*> handler(RootingCx());
if (mCachedXBLPrototypeHandlers) {
mCachedXBLPrototypeHandlers->Get(aKey, handler.address());
}
return handler;
}
void nsGlobalWindowInner::CacheXBLPrototypeHandler(
nsXBLPrototypeHandler* aKey, JS::Handle<JSObject*> aHandler) {
if (!mCachedXBLPrototypeHandlers) {
mCachedXBLPrototypeHandlers = MakeUnique<XBLPrototypeHandlerTable>();
PreserveWrapper(ToSupports(this));
}
mCachedXBLPrototypeHandlers->Put(aKey, aHandler);
}
Element* nsGlobalWindowInner::GetFrameElement(nsIPrincipal& aSubjectPrincipal,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetFrameElementOuter, (aSubjectPrincipal), aError,
nullptr);
}
Element* nsGlobalWindowInner::GetRealFrameElement(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetRealFrameElementOuter, (), aError, nullptr);
}
/**
* nsIGlobalWindow::GetFrameElement (when called from C++) is just a wrapper
* around GetRealFrameElement.
*/
Element* nsGlobalWindowInner::GetFrameElement() {
return GetRealFrameElement(IgnoreErrors());
}
void nsGlobalWindowInner::UpdateCommands(const nsAString& anAction,
Selection* aSel, int16_t aReason) {
if (GetOuterWindowInternal()) {
GetOuterWindowInternal()->UpdateCommands(anAction, aSel, aReason);
}
}
Selection* nsGlobalWindowInner::GetSelection(ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetSelectionOuter, (), aError, nullptr);
}
bool nsGlobalWindowInner::Find(const nsAString& aString, bool aCaseSensitive,
bool aBackwards, bool aWrapAround,
bool aWholeWord, bool aSearchInFrames,
bool aShowDialog, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(FindOuter,
(aString, aCaseSensitive, aBackwards, aWrapAround,
aWholeWord, aSearchInFrames, aShowDialog, aError),
aError, false);
}
void nsGlobalWindowInner::GetOrigin(nsAString& aOrigin) {
nsContentUtils::GetUTFOrigin(GetPrincipal(), aOrigin);
}
void nsGlobalWindowInner::Atob(const nsAString& aAsciiBase64String,
nsAString& aBinaryData, ErrorResult& aError) {
aError = nsContentUtils::Atob(aAsciiBase64String, aBinaryData);
}
void nsGlobalWindowInner::Btoa(const nsAString& aBinaryData,
nsAString& aAsciiBase64String,
ErrorResult& aError) {
aError = nsContentUtils::Btoa(aBinaryData, aAsciiBase64String);
}
//*****************************************************************************
// EventTarget
//*****************************************************************************
nsPIDOMWindowOuter* nsGlobalWindowInner::GetOwnerGlobalForBindingsInternal() {
return nsPIDOMWindowOuter::GetFromCurrentInner(this);
}
bool nsGlobalWindowInner::DispatchEvent(Event& aEvent, CallerType aCallerType,
ErrorResult& aRv) {
if (!IsCurrentInnerWindow()) {
NS_WARNING(
"DispatchEvent called on non-current inner window, dropping. "
"Please check the window in the caller instead.");
aRv.Throw(NS_ERROR_FAILURE);
return false;
}
if (!mDoc) {
aRv.Throw(NS_ERROR_FAILURE);
return false;
}
// Obtain a presentation shell
RefPtr<nsPresContext> presContext = mDoc->GetPresContext();
nsEventStatus status = nsEventStatus_eIgnore;
nsresult rv = EventDispatcher::DispatchDOMEvent(
ToSupports(this), nullptr, &aEvent, presContext, &status);
bool retval = !aEvent.DefaultPrevented(aCallerType);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
}
return retval;
}
bool nsGlobalWindowInner::ComputeDefaultWantsUntrusted(ErrorResult& aRv) {
return !nsContentUtils::IsChromeDoc(mDoc);
}
EventListenerManager* nsGlobalWindowInner::GetOrCreateListenerManager() {
if (!mListenerManager) {
mListenerManager =
new EventListenerManager(static_cast<EventTarget*>(this));
}
return mListenerManager;
}
EventListenerManager* nsGlobalWindowInner::GetExistingListenerManager() const {
return mListenerManager;
}
//*****************************************************************************
// nsGlobalWindowInner::nsPIDOMWindow
//*****************************************************************************
Location* nsGlobalWindowInner::Location() {
if (!mLocation) {
mLocation = new dom::Location(this, GetDocShell());
}
return mLocation;
}
void nsGlobalWindowInner::MaybeUpdateTouchState() {
if (mMayHaveTouchEventListener) {
nsCOMPtr<nsIObserverService> observerService =
services::GetObserverService();
if (observerService) {
observerService->NotifyObservers(static_cast<nsIDOMWindow*>(this),
DOM_TOUCH_LISTENER_ADDED, nullptr);
}
}
}
void nsGlobalWindowInner::EnableGamepadUpdates() {
if (mHasGamepad) {
RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
if (gamepadManager) {
gamepadManager->AddListener(this);
}
}
}
void nsGlobalWindowInner::DisableGamepadUpdates() {
if (mHasGamepad) {
RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
if (gamepadManager) {
gamepadManager->RemoveListener(this);
}
}
}
void nsGlobalWindowInner::EnableVRUpdates() {
if (mHasVREvents && !mVREventObserver) {
mVREventObserver = new VREventObserver(this);
}
}
void nsGlobalWindowInner::DisableVRUpdates() {
if (mVREventObserver) {
mVREventObserver->DisconnectFromOwner();
mVREventObserver = nullptr;
}
}
void nsGlobalWindowInner::ResetVRTelemetry(bool aUpdate) {
if (mVREventObserver) {
mVREventObserver->UpdateSpentTimeIn2DTelemetry(aUpdate);
}
}
void nsGlobalWindowInner::StartVRActivity() {
if (mVREventObserver) {
mVREventObserver->StartActivity();
}
}
void nsGlobalWindowInner::StopVRActivity() {
if (mVREventObserver) {
mVREventObserver->StopActivity();
}
}
#ifndef XP_WIN // This guard should match the guard at the callsite.
static bool ShouldShowFocusRingIfFocusedByMouse(nsIContent* aNode) {
if (!aNode) {
return true;
}
return !nsContentUtils::ContentIsLink(aNode) &&
!aNode->IsAnyOfHTMLElements(nsGkAtoms::video, nsGkAtoms::audio);
}
#endif
void nsGlobalWindowInner::SetFocusedElement(Element* aElement,
uint32_t aFocusMethod,
bool aNeedsFocus) {
if (aElement && aElement->GetComposedDoc() != mDoc) {
NS_WARNING("Trying to set focus to a node from a wrong document");
return;
}
if (IsDying()) {
NS_ASSERTION(!aElement, "Trying to focus cleaned up window!");
aElement = nullptr;
aNeedsFocus = false;
}
if (mFocusedElement != aElement) {
UpdateCanvasFocus(false, aElement);
mFocusedElement = aElement;
mFocusMethod = aFocusMethod & FOCUSMETHOD_MASK;
mShowFocusRingForContent = false;
}
if (mFocusedElement) {
// if a node was focused by a keypress, turn on focus rings for the
// window.
if (mFocusMethod & nsIFocusManager::FLAG_BYKEY) {
mFocusByKeyOccurred = true;
} else if (
// otherwise, we set mShowFocusRingForContent, as we don't want this to
// be permanent for the window. On Windows, focus rings are only shown
// when the FLAG_SHOWRING flag is used. On other platforms, focus rings
// are only visible on some elements.
#ifndef XP_WIN
!(mFocusMethod & nsIFocusManager::FLAG_BYMOUSE) ||
ShouldShowFocusRingIfFocusedByMouse(aElement) ||
#endif
aFocusMethod & nsIFocusManager::FLAG_SHOWRING) {
mShowFocusRingForContent = true;
}
}
if (aNeedsFocus) mNeedsFocus = aNeedsFocus;
}
uint32_t nsGlobalWindowInner::GetFocusMethod() { return mFocusMethod; }
bool nsGlobalWindowInner::ShouldShowFocusRing() {
if (mShowFocusRingForContent || mFocusByKeyOccurred) {
return true;
}
nsCOMPtr<nsPIWindowRoot> root = GetTopWindowRoot();
return root ? root->ShowFocusRings() : false;
}
bool nsGlobalWindowInner::TakeFocus(bool aFocus, uint32_t aFocusMethod) {
if (IsDying()) {
return false;
}
if (aFocus) mFocusMethod = aFocusMethod & FOCUSMETHOD_MASK;
if (mHasFocus != aFocus) {
mHasFocus = aFocus;
UpdateCanvasFocus(true, mFocusedElement);
}
// if mNeedsFocus is true, then the document has not yet received a
// document-level focus event. If there is a root content node, then return
// true to tell the calling focus manager that a focus event is expected. If
// there is no root content node, the document hasn't loaded enough yet, or
// there isn't one and there is no point in firing a focus event.
if (aFocus && mNeedsFocus && mDoc && mDoc->GetRootElement() != nullptr) {
mNeedsFocus = false;
return true;
}
mNeedsFocus = false;
return false;
}
void nsGlobalWindowInner::SetReadyForFocus() {
bool oldNeedsFocus = mNeedsFocus;
mNeedsFocus = false;
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
fm->WindowShown(GetOuterWindow(), oldNeedsFocus);
}
}
void nsGlobalWindowInner::PageHidden() {
// the window is being hidden, so tell the focus manager that the frame is
// no longer valid. Use the persisted field to determine if the document
// is being destroyed.
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
fm->WindowHidden(GetOuterWindow());
}
mNeedsFocus = true;
}
class HashchangeCallback : public Runnable {
public:
HashchangeCallback(const nsAString& aOldURL, const nsAString& aNewURL,
nsGlobalWindowInner* aWindow)
: mozilla::Runnable("HashchangeCallback"), mWindow(aWindow) {
MOZ_ASSERT(mWindow);
mOldURL.Assign(aOldURL);
mNewURL.Assign(aNewURL);
}
NS_IMETHOD Run() override {
MOZ_ASSERT(NS_IsMainThread(), "Should be called on the main thread.");
return mWindow->FireHashchange(mOldURL, mNewURL);
}
private:
nsString mOldURL;
nsString mNewURL;
RefPtr<nsGlobalWindowInner> mWindow;
};
nsresult nsGlobalWindowInner::DispatchAsyncHashchange(nsIURI* aOldURI,
nsIURI* aNewURI) {
// Make sure that aOldURI and aNewURI are identical up to the '#', and that
// their hashes are different.
bool equal = false;
NS_ENSURE_STATE(NS_SUCCEEDED(aOldURI->EqualsExceptRef(aNewURI, &equal)) &&
equal);
nsAutoCString oldHash, newHash;
bool oldHasHash, newHasHash;
NS_ENSURE_STATE(NS_SUCCEEDED(aOldURI->GetRef(oldHash)) &&
NS_SUCCEEDED(aNewURI->GetRef(newHash)) &&
NS_SUCCEEDED(aOldURI->GetHasRef(&oldHasHash)) &&
NS_SUCCEEDED(aNewURI->GetHasRef(&newHasHash)) &&
(oldHasHash != newHasHash || !oldHash.Equals(newHash)));
nsAutoCString oldSpec, newSpec;
nsresult rv = aOldURI->GetSpec(oldSpec);
NS_ENSURE_SUCCESS(rv, rv);
rv = aNewURI->GetSpec(newSpec);
NS_ENSURE_SUCCESS(rv, rv);
NS_ConvertUTF8toUTF16 oldWideSpec(oldSpec);
NS_ConvertUTF8toUTF16 newWideSpec(newSpec);
nsCOMPtr<nsIRunnable> callback =
new HashchangeCallback(oldWideSpec, newWideSpec, this);
return Dispatch(TaskCategory::Other, callback.forget());
}
nsresult nsGlobalWindowInner::FireHashchange(const nsAString& aOldURL,
const nsAString& aNewURL) {
// Don't do anything if the window is frozen.
if (IsFrozen()) {
return NS_OK;
}
// Get a presentation shell for use in creating the hashchange event.
NS_ENSURE_STATE(IsCurrentInnerWindow());
HashChangeEventInit init;
init.mBubbles = true;
init.mCancelable = false;
init.mNewURL = aNewURL;
init.mOldURL = aOldURL;
RefPtr<HashChangeEvent> event =
HashChangeEvent::Constructor(this, NS_LITERAL_STRING("hashchange"), init);
event->SetTrusted(true);
ErrorResult rv;
DispatchEvent(*event, rv);
return rv.StealNSResult();
}
nsresult nsGlobalWindowInner::DispatchSyncPopState() {
NS_ASSERTION(nsContentUtils::IsSafeToRunScript(),
"Must be safe to run script here.");
// Bail if the window is frozen.
if (IsFrozen()) {
return NS_OK;
}
// Get the document's pending state object -- it contains the data we're
// going to send along with the popstate event. The object is serialized
// using structured clone.
nsCOMPtr<nsIVariant> stateObj;
nsresult rv = mDoc->GetStateObject(getter_AddRefs(stateObj));
NS_ENSURE_SUCCESS(rv, rv);
AutoJSAPI jsapi;
bool result = jsapi.Init(this);
NS_ENSURE_TRUE(result, NS_ERROR_FAILURE);
JSContext* cx = jsapi.cx();
JS::Rooted<JS::Value> stateJSValue(cx, JS::NullValue());
result = stateObj ? VariantToJsval(cx, stateObj, &stateJSValue) : true;
NS_ENSURE_TRUE(result, NS_ERROR_FAILURE);
RootedDictionary<PopStateEventInit> init(cx);
init.mBubbles = true;
init.mCancelable = false;
init.mState = stateJSValue;
RefPtr<PopStateEvent> event =
PopStateEvent::Constructor(this, NS_LITERAL_STRING("popstate"), init);
event->SetTrusted(true);
event->SetTarget(this);
ErrorResult err;
DispatchEvent(*event, err);
return err.StealNSResult();
}
//-------------------------------------------------------
// Tells the HTMLFrame/CanvasFrame that is now has focus
void nsGlobalWindowInner::UpdateCanvasFocus(bool aFocusChanged,
nsIContent* aNewContent) {
// this is called from the inner window so use GetDocShell
nsIDocShell* docShell = GetDocShell();
if (!docShell) return;
bool editable;
docShell->GetEditable(&editable);
if (editable) return;
PresShell* presShell = docShell->GetPresShell();
if (!presShell || !mDoc) {
return;
}
Element* rootElement = mDoc->GetRootElement();
if (rootElement) {
if ((mHasFocus || aFocusChanged) &&
(mFocusedElement == rootElement || aNewContent == rootElement)) {
nsCanvasFrame* canvasFrame = presShell->GetCanvasFrame();
if (canvasFrame) {
canvasFrame->SetHasFocus(mHasFocus && rootElement == aNewContent);
}
}
} else {
// XXXbz I would expect that there is never a canvasFrame in this case...
nsCanvasFrame* canvasFrame = presShell->GetCanvasFrame();
if (canvasFrame) {
canvasFrame->SetHasFocus(false);
}
}
}
already_AddRefed<nsICSSDeclaration> nsGlobalWindowInner::GetComputedStyle(
Element& aElt, const nsAString& aPseudoElt, ErrorResult& aError) {
return GetComputedStyleHelper(aElt, aPseudoElt, false, aError);
}
already_AddRefed<nsICSSDeclaration>
nsGlobalWindowInner::GetDefaultComputedStyle(Element& aElt,
const nsAString& aPseudoElt,
ErrorResult& aError) {
return GetComputedStyleHelper(aElt, aPseudoElt, true, aError);
}
already_AddRefed<nsICSSDeclaration> nsGlobalWindowInner::GetComputedStyleHelper(
Element& aElt, const nsAString& aPseudoElt, bool aDefaultStylesOnly,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetComputedStyleHelperOuter,
(aElt, aPseudoElt, aDefaultStylesOnly), aError,
nullptr);
}
Storage* nsGlobalWindowInner::GetSessionStorage(ErrorResult& aError) {
nsIPrincipal* principal = GetPrincipal();
nsIDocShell* docShell = GetDocShell();
if (!principal || !docShell || !Storage::StoragePrefIsEnabled()) {
return nullptr;
}
if (mSessionStorage) {
MOZ_LOG(gDOMLeakPRLogInner, LogLevel::Debug,
("nsGlobalWindowInner %p has %p sessionStorage", this,
mSessionStorage.get()));
bool canAccess = principal->Subsumes(mSessionStorage->Principal());
NS_ASSERTION(canAccess,
"This window owned sessionStorage "
"that could not be accessed!");
if (!canAccess) {
mSessionStorage = nullptr;
}
}
if (!mSessionStorage) {
nsString documentURI;
if (mDoc) {
aError = mDoc->GetDocumentURI(documentURI);
if (NS_WARN_IF(aError.Failed())) {
return nullptr;
}
}
// If the document has the sandboxed origin flag set
// don't allow access to sessionStorage.
if (!mDoc) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
if (mDoc->GetSandboxFlags() & SANDBOXED_ORIGIN) {
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
uint32_t rejectedReason = 0;
nsContentUtils::StorageAccess access =
nsContentUtils::StorageAllowedForWindow(this, &rejectedReason);
// SessionStorage is an ephemeral per-tab per-origin storage that only lives
// as long as the tab is open, although it may survive browser restarts
// thanks to the session store. So we interpret storage access differently
// than we would for persistent per-origin storage like LocalStorage and so
// it may be okay to provide SessionStorage even when we receive a value of
// eDeny.
//
// AntiTrackingCommon::IsFirstPartyStorageAccessGranted will return false
// for 3 main reasons.
//
// 1. Cookies are entirely blocked due to a per-origin permission
// (nsICookiePermission::ACCESS_DENY for the top-level principal or this
// window's principal) or the very broad BEHAVIOR_REJECT. This will return
// eDeny with a reason of STATE_COOKIES_BLOCKED_BY_PERMISSION or
// STATE_COOKIES_BLOCKED_ALL.
//
// 2. Third-party cookies are limited via BEHAVIOR_REJECT_FOREIGN and
// BEHAVIOR_LIMIT_FOREIGN and this is a third-party window. This will return
// eDeny with a reason of STATE_COOKIES_BLOCKED_FOREIGN.
//
// 3. Tracking protection (BEHAVIOR_REJECT_TRACKER) is in effect and
// IsThirdPartyTrackingResourceWindow() returned true and there wasn't a
// permission that allows it. This will return ePartitionedOrDeny with a
// reason of STATE_COOKIES_BLOCKED_TRACKER.
//
// In the 1st case, the user has explicitly indicated that they don't want
// to allow any storage to the origin or all origins and so we throw an
// error and deny access to SessionStorage. In the 2nd case, a legacy
// decision reasoned that there's no harm in providing SessionStorage
// because the information is not durable and cannot escape the current tab.
// The rationale is similar for the 3rd case.
if (access == nsContentUtils::StorageAccess::eDeny &&
rejectedReason !=
nsIWebProgressListener::STATE_COOKIES_BLOCKED_FOREIGN) {
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
nsresult rv;
nsCOMPtr<nsIDOMStorageManager> storageManager =
do_QueryInterface(docShell, &rv);
if (NS_FAILED(rv)) {
aError.Throw(rv);
return nullptr;
}
RefPtr<Storage> storage;
// No StoragePrincipal for sessions.
aError = storageManager->CreateStorage(this, principal, principal,
documentURI, IsPrivateBrowsing(),
getter_AddRefs(storage));
if (aError.Failed()) {
return nullptr;
}
mSessionStorage = storage;
MOZ_ASSERT(mSessionStorage);
MOZ_LOG(gDOMLeakPRLogInner, LogLevel::Debug,
("nsGlobalWindowInner %p tried to get a new sessionStorage %p",
this, mSessionStorage.get()));
if (!mSessionStorage) {
aError.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return nullptr;
}
}
MOZ_LOG(gDOMLeakPRLogInner, LogLevel::Debug,
("nsGlobalWindowInner %p returns %p sessionStorage", this,
mSessionStorage.get()));
return mSessionStorage;
}
Storage* nsGlobalWindowInner::GetLocalStorage(ErrorResult& aError) {
if (!Storage::StoragePrefIsEnabled()) {
return nullptr;
}
// LocalStorage needs to be exposed in every context except for sandboxes and
// NullPrincipals (data: URLs, for instance). But we need to keep data
// separate in some scenarios: private-browsing and partitioned trackers.
// In private-browsing, LocalStorage keeps data in memory, and it shares
// StorageEvents just with other origins in the same private-browsing
// environment.
// For Partitioned Trackers, we expose a partitioned LocalStorage, which
// doesn't share data with other contexts, and it's just in memory.
// Partitioned localStorage is available only for trackers listed in the
// privacy.restrict3rdpartystorage.partitionedHosts pref. See
// nsContentUtils::IsURIInPrefList to know the syntax for the pref value.
// This is a temporary web-compatibility hack.
nsContentUtils::StorageAccess access =
nsContentUtils::StorageAllowedForWindow(this);
// We allow partitioned localStorage only to some hosts.
if (access == nsContentUtils::StorageAccess::ePartitionedOrDeny) {
if (!mDoc) {
access = nsContentUtils::StorageAccess::eDeny;
} else if (!StaticPrefs::privacy_storagePrincipal_enabledForTrackers()) {
nsCOMPtr<nsIURI> uri;
Unused << mDoc->NodePrincipal()->GetURI(getter_AddRefs(uri));
static const char* kPrefName =
"privacy.restrict3rdpartystorage.partitionedHosts";
if (!uri || !nsContentUtils::IsURIInPrefList(uri, kPrefName)) {
access = nsContentUtils::StorageAccess::eDeny;
}
}
}
if (access == nsContentUtils::StorageAccess::eDeny) {
if (mDoc && (mDoc->GetSandboxFlags() & SANDBOXED_ORIGIN) != 0) {
// Only raise the exception if we are denying storage access due to
// sandbox restrictions. If we're denying storage access due to other
// reasons (e.g. cookie policy enforcement), withhold raising the
// exception in an effort to achieve more web compatibility.
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
}
return nullptr;
}
// Note that this behavior is observable: if we grant storage permission to a
// tracker, we pass from the partitioned LocalStorage to the 'normal'
// LocalStorage. The previous data is lost and the 2 window.localStorage
// objects, before and after the permission granted, will be different.
if ((StaticPrefs::privacy_storagePrincipal_enabledForTrackers() ||
access != nsContentUtils::StorageAccess::ePartitionedOrDeny) &&
(!mLocalStorage ||
mLocalStorage->Type() == Storage::ePartitionedLocalStorage)) {
RefPtr<Storage> storage;
if (NextGenLocalStorageEnabled()) {
aError = LSObject::CreateForWindow(this, getter_AddRefs(storage));
} else {
nsresult rv;
nsCOMPtr<nsIDOMStorageManager> storageManager =
do_GetService("@mozilla.org/dom/localStorage-manager;1", &rv);
if (NS_FAILED(rv)) {
aError.Throw(rv);
return nullptr;
}
nsString documentURI;
if (mDoc) {
aError = mDoc->GetDocumentURI(documentURI);
if (NS_WARN_IF(aError.Failed())) {
return nullptr;
}
}
nsIPrincipal* principal = GetPrincipal();
if (!principal) {
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
nsIPrincipal* storagePrincipal = GetEffectiveStoragePrincipal();
if (!storagePrincipal) {
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
aError = storageManager->CreateStorage(this, principal, storagePrincipal,
documentURI, IsPrivateBrowsing(),
getter_AddRefs(storage));
}
if (aError.Failed()) {
return nullptr;
}
mLocalStorage = storage;
MOZ_ASSERT(mLocalStorage);
}
if (access == nsContentUtils::StorageAccess::ePartitionedOrDeny &&
!mLocalStorage) {
nsIPrincipal* principal = GetPrincipal();
if (!principal) {
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
nsIPrincipal* storagePrincipal = GetEffectiveStoragePrincipal();
if (!storagePrincipal) {
aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
mLocalStorage =
new PartitionedLocalStorage(this, principal, storagePrincipal);
}
MOZ_ASSERT_IF(
!StaticPrefs::privacy_storagePrincipal_enabledForTrackers(),
(access == nsContentUtils::StorageAccess::ePartitionedOrDeny) ==
(mLocalStorage->Type() == Storage::ePartitionedLocalStorage));
return mLocalStorage;
}
IDBFactory* nsGlobalWindowInner::GetIndexedDB(ErrorResult& aError) {
if (!mIndexedDB) {
// This may keep mIndexedDB null without setting an error.
aError = IDBFactory::CreateForWindow(this, getter_AddRefs(mIndexedDB));
}
return mIndexedDB;
}
//*****************************************************************************
// nsGlobalWindowInner::nsIInterfaceRequestor
//*****************************************************************************
NS_IMETHODIMP
nsGlobalWindowInner::GetInterface(const nsIID& aIID, void** aSink) {
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
nsresult rv = outer->GetInterfaceInternal(aIID, aSink);
if (rv == NS_ERROR_NO_INTERFACE) {
return QueryInterface(aIID, aSink);
}
return rv;
}
void nsGlobalWindowInner::GetInterface(JSContext* aCx,
JS::Handle<JS::Value> aIID,
JS::MutableHandle<JS::Value> aRetval,
ErrorResult& aError) {
dom::GetInterface(aCx, this, aIID, aRetval, aError);
}
already_AddRefed<CacheStorage> nsGlobalWindowInner::GetCaches(
ErrorResult& aRv) {
if (!mCacheStorage) {
bool forceTrustedOrigin =
GetOuterWindow()->GetServiceWorkersTestingEnabled();
mCacheStorage = CacheStorage::CreateOnMainThread(cache::DEFAULT_NAMESPACE,
this, GetPrincipal(),
forceTrustedOrigin, aRv);
}
RefPtr<CacheStorage> ref = mCacheStorage;
return ref.forget();
}
void nsGlobalWindowInner::FireOfflineStatusEventIfChanged() {
if (!IsCurrentInnerWindow()) return;
// Don't fire an event if the status hasn't changed
if (mWasOffline == NS_IsOffline()) {
return;
}
mWasOffline = !mWasOffline;
nsAutoString name;
if (mWasOffline) {
name.AssignLiteral("offline");
} else {
name.AssignLiteral("online");
}
nsContentUtils::DispatchTrustedEvent(mDoc, static_cast<EventTarget*>(this),
name, CanBubble::eNo, Cancelable::eNo);
}
nsGlobalWindowInner::SlowScriptResponse
nsGlobalWindowInner::ShowSlowScriptDialog(JSContext* aCx,
const nsString& aAddonId) {
nsresult rv;
if (Preferences::GetBool("dom.always_stop_slow_scripts")) {
return KillSlowScript;
}
// If it isn't safe to run script, then it isn't safe to bring up the prompt
// (since that spins the event loop). In that (rare) case, we just kill the
// script and report a warning.
if (!nsContentUtils::IsSafeToRunScript()) {
JS::WarnASCII(aCx, "A long running script was terminated");
return KillSlowScript;
}
// If our document is not active, just kill the script: we've been unloaded
if (!HasActiveDocument()) {
return KillSlowScript;
}
// Check if we should offer the option to debug
JS::AutoFilename filename;
unsigned lineno;
// Computing the line number can be very expensive (see bug 1330231 for
// example), and we don't use the line number anywhere except than in the
// parent process, so we avoid computing it elsewhere. This gives us most of
// the wins we are interested in, since the source of the slowness here is
// minified scripts which is more common in Web content that is loaded in the
// content process.
unsigned* linenop = XRE_IsParentProcess() ? &lineno : nullptr;
bool hasFrame = JS::DescribeScriptedCaller(aCx, &filename, linenop);
// Record the slow script event if we haven't done so already for this inner
// window (which represents a particular page to the user).
if (!mHasHadSlowScript) {
Telemetry::Accumulate(Telemetry::SLOW_SCRIPT_PAGE_COUNT, 1);
}
mHasHadSlowScript = true;
if (XRE_IsContentProcess() && ProcessHangMonitor::Get()) {
ProcessHangMonitor::SlowScriptAction action;
RefPtr<ProcessHangMonitor> monitor = ProcessHangMonitor::Get();
nsIDocShell* docShell = GetDocShell();
nsCOMPtr<nsIBrowserChild> child =
docShell ? docShell->GetBrowserChild() : nullptr;
action = monitor->NotifySlowScript(child, filename.get(), aAddonId);
if (action == ProcessHangMonitor::Terminate) {
return KillSlowScript;
}
if (action == ProcessHangMonitor::TerminateGlobal) {
return KillScriptGlobal;
}
if (action == ProcessHangMonitor::StartDebugger) {
// Spin a nested event loop so that the debugger in the parent can fetch
// any information it needs. Once the debugger has started, return to the
// script.
RefPtr<nsGlobalWindowOuter> outer = GetOuterWindowInternal();
outer->EnterModalState();
SpinEventLoopUntil(
[&]() { return monitor->IsDebuggerStartupComplete(); });
outer->LeaveModalState();
return ContinueSlowScript;
}
return ContinueSlowScriptAndKeepNotifying;
}
// Reached only on non-e10s - once per slow script dialog.
// On e10s - we probe once at ProcessHangsMonitor.jsm
Telemetry::Accumulate(Telemetry::SLOW_SCRIPT_NOTICE_COUNT, 1);
// Get the nsIPrompt interface from the docshell
nsCOMPtr<nsIDocShell> ds = GetDocShell();
NS_ENSURE_TRUE(ds, KillSlowScript);
nsCOMPtr<nsIPrompt> prompt = do_GetInterface(ds);
NS_ENSURE_TRUE(prompt, KillSlowScript);
// Prioritize the SlowScriptDebug interface over JSD1.
nsCOMPtr<nsISlowScriptDebugCallback> debugCallback;
if (hasFrame) {
const char* debugCID = "@mozilla.org/dom/slow-script-debug;1";
nsCOMPtr<nsISlowScriptDebug> debugService = do_GetService(debugCID, &rv);
if (NS_SUCCEEDED(rv)) {
debugService->GetActivationHandler(getter_AddRefs(debugCallback));
}
}
bool failed = false;
auto getString = [&](const char* name,
nsContentUtils::PropertiesFile propFile =
nsContentUtils::eDOM_PROPERTIES) {
nsAutoString result;
nsresult rv = nsContentUtils::GetLocalizedString(propFile, name, result);
// GetStringFromName can return NS_OK and still give nullptr string
failed = failed || NS_FAILED(rv) || result.IsEmpty();
return result;
};
bool isAddonScript = !aAddonId.IsEmpty();
bool showDebugButton = debugCallback && !isAddonScript;
// Get localizable strings
nsAutoString title, checkboxMsg, debugButton, msg;
if (isAddonScript) {
title = getString("KillAddonScriptTitle");
checkboxMsg = getString("KillAddonScriptGlobalMessage");
auto appName =
getString("brandShortName", nsContentUtils::eBRAND_PROPERTIES);
nsCOMPtr<nsIAddonPolicyService> aps =
do_GetService("@mozilla.org/addons/policy-service;1");
nsString addonName;
if (!aps || NS_FAILED(aps->GetExtensionName(aAddonId, addonName))) {
addonName = aAddonId;
}
const char16_t* params[] = {addonName.get(), appName.get()};
rv = nsContentUtils::FormatLocalizedString(
nsContentUtils::eDOM_PROPERTIES, "KillAddonScriptMessage", params, msg);
failed = failed || NS_FAILED(rv);
} else {
title = getString("KillScriptTitle");
checkboxMsg = getString("DontAskAgain");
if (showDebugButton) {
debugButton = getString("DebugScriptButton");
msg = getString("KillScriptWithDebugMessage");
} else {
msg = getString("KillScriptMessage");
}
}
auto stopButton = getString("StopScriptButton");
auto waitButton = getString("WaitForScriptButton");
if (failed) {
NS_ERROR("Failed to get localized strings.");
return ContinueSlowScript;
}
// Append file and line number information, if available
if (filename.get()) {
nsAutoString scriptLocation;
// We want to drop the middle part of too-long locations. We'll
// define "too-long" as longer than 60 UTF-16 code units. Just
// have to be a bit careful about unpaired surrogates.
NS_ConvertUTF8toUTF16 filenameUTF16(filename.get());
if (filenameUTF16.Length() > 60) {
// XXXbz Do we need to insert any bidi overrides here?
size_t cutStart = 30;
size_t cutLength = filenameUTF16.Length() - 60;
MOZ_ASSERT(cutLength > 0);
if (NS_IS_LOW_SURROGATE(filenameUTF16[cutStart])) {
// Don't truncate before the low surrogate, in case it's preceded by a
// high surrogate and forms a single Unicode character. Instead, just
// include the low surrogate.
++cutStart;
--cutLength;
}
if (NS_IS_LOW_SURROGATE(filenameUTF16[cutStart + cutLength])) {
// Likewise, don't drop a trailing low surrogate here. We want to
// increase cutLength, since it might be 0 already so we can't very well
// decrease it.
++cutLength;
}
// Insert U+2026 HORIZONTAL ELLIPSIS
filenameUTF16.ReplaceLiteral(cutStart, cutLength, u"\x2026");
}
const char16_t* formatParams[] = {filenameUTF16.get()};
rv = nsContentUtils::FormatLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"KillScriptLocation",
formatParams, scriptLocation);
if (NS_SUCCEEDED(rv)) {
msg.AppendLiteral("\n\n");
msg.Append(scriptLocation);
msg.Append(':');
msg.AppendInt(lineno);
}
}
uint32_t buttonFlags = nsIPrompt::BUTTON_POS_1_DEFAULT +
(nsIPrompt::BUTTON_TITLE_IS_STRING *
(nsIPrompt::BUTTON_POS_0 + nsIPrompt::BUTTON_POS_1));
// Add a third button if necessary.
if (showDebugButton)
buttonFlags += nsIPrompt::BUTTON_TITLE_IS_STRING * nsIPrompt::BUTTON_POS_2;
bool checkboxValue = false;
int32_t buttonPressed = 0; // In case the user exits dialog by clicking X.
{
// Null out the operation callback while we're re-entering JS here.
AutoDisableJSInterruptCallback disabler(aCx);
// Open the dialog.
rv = prompt->ConfirmEx(
title.get(), msg.get(), buttonFlags, waitButton.get(), stopButton.get(),
debugButton.get(), checkboxMsg.get(), &checkboxValue, &buttonPressed);
}
if (buttonPressed == 0) {
if (checkboxValue && !isAddonScript && NS_SUCCEEDED(rv))
return AlwaysContinueSlowScript;
return ContinueSlowScript;
}
if (buttonPressed == 2) {
MOZ_RELEASE_ASSERT(debugCallback);
rv = debugCallback->HandleSlowScriptDebug(this);
return NS_SUCCEEDED(rv) ? ContinueSlowScript : KillSlowScript;
}
JS_ClearPendingException(aCx);
if (checkboxValue && isAddonScript) return KillScriptGlobal;
return KillSlowScript;
}
nsresult nsGlobalWindowInner::Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) {
if (!nsCRT::strcmp(aTopic, NS_IOSERVICE_OFFLINE_STATUS_TOPIC)) {
if (!IsFrozen()) {
// Fires an offline status event if the offline status has changed
FireOfflineStatusEventIfChanged();
}
return NS_OK;
}
if (!nsCRT::strcmp(aTopic, MEMORY_PRESSURE_OBSERVER_TOPIC)) {
if (mPerformance) {
mPerformance->MemoryPressure();
mReportRecords.Clear();
}
return NS_OK;
}
if (!nsCRT::strcmp(aTopic, "offline-cache-update-added")) {
if (mApplicationCache) return NS_OK;
// Instantiate the application object now. It observes update belonging to
// this window's document and correctly updates the applicationCache object
// state.
nsCOMPtr<nsIObserver> observer = GetApplicationCache();
if (observer) observer->Observe(aSubject, aTopic, aData);
return NS_OK;
}
if (!nsCRT::strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
MOZ_ASSERT(!NS_strcmp(aData, u"intl.accept_languages"));
// The user preferred languages have changed, we need to fire an event on
// Window object and invalidate the cache for navigator.languages. It is
// done for every change which can be a waste of cycles but those should be
// fairly rare.
// We MUST invalidate navigator.languages before sending the event in the
// very likely situation where an event handler will try to read its value.
if (mNavigator) {
Navigator_Binding::ClearCachedLanguageValue(mNavigator);
Navigator_Binding::ClearCachedLanguagesValue(mNavigator);
}
// The event has to be dispatched only to the current inner window.
if (!IsCurrentInnerWindow()) {
return NS_OK;
}
RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
event->InitEvent(NS_LITERAL_STRING("languagechange"), false, false);
event->SetTrusted(true);
ErrorResult rv;
DispatchEvent(*event, rv);
return rv.StealNSResult();
}
NS_WARNING("unrecognized topic in nsGlobalWindowInner::Observe");
return NS_ERROR_FAILURE;
}
void nsGlobalWindowInner::ObserveStorageNotification(
StorageEvent* aEvent, const char16_t* aStorageType, bool aPrivateBrowsing) {
MOZ_ASSERT(aEvent);
// The private browsing check must be done here again because this window
// could have changed its state before the notification check and now. This
// happens in case this window did have a docShell at that time.
if (aPrivateBrowsing != IsPrivateBrowsing()) {
return;
}
// LocalStorage can only exist on an inner window, and we don't want to
// generate events on frozen or otherwise-navigated-away from windows.
// (Actually, this code used to try and buffer events for frozen windows,
// but it never worked, so we've removed it. See bug 1285898.)
if (!IsCurrentInnerWindow() || IsFrozen()) {
return;
}
nsIPrincipal* principal = GetPrincipal();
if (!principal) {
return;
}
nsIPrincipal* storagePrincipal = GetEffectiveStoragePrincipal();
if (!storagePrincipal) {
return;
}
bool fireMozStorageChanged = false;
nsAutoString eventType;
eventType.AssignLiteral("storage");
if (!NS_strcmp(aStorageType, u"sessionStorage")) {
RefPtr<Storage> changingStorage = aEvent->GetStorageArea();
MOZ_ASSERT(changingStorage);
bool check = false;
nsCOMPtr<nsIDOMStorageManager> storageManager =
do_QueryInterface(GetDocShell());
if (storageManager) {
nsresult rv =
storageManager->CheckStorage(principal, changingStorage, &check);
if (NS_FAILED(rv)) {
return;
}
}
if (!check) {
// This storage event is not coming from our storage or is coming
// from a different docshell, i.e. it is a clone, ignore this event.
return;
}
MOZ_LOG(
gDOMLeakPRLogInner, LogLevel::Debug,
("nsGlobalWindowInner %p with sessionStorage %p passing event from %p",
this, mSessionStorage.get(), changingStorage.get()));
fireMozStorageChanged = mSessionStorage == changingStorage;
if (fireMozStorageChanged) {
eventType.AssignLiteral("MozSessionStorageChanged");
}
}
else {
MOZ_ASSERT(!NS_strcmp(aStorageType, u"localStorage"));
MOZ_DIAGNOSTIC_ASSERT(StorageUtils::PrincipalsEqual(aEvent->GetPrincipal(),
storagePrincipal));
fireMozStorageChanged =
mLocalStorage && mLocalStorage == aEvent->GetStorageArea();
if (fireMozStorageChanged) {
eventType.AssignLiteral("MozLocalStorageChanged");
}
}
// Clone the storage event included in the observer notification. We want
// to dispatch clones rather than the original event.
IgnoredErrorResult error;
RefPtr<StorageEvent> clonedEvent =
CloneStorageEvent(eventType, aEvent, error);
if (error.Failed() || !clonedEvent) {
return;
}
clonedEvent->SetTrusted(true);
if (fireMozStorageChanged) {
WidgetEvent* internalEvent = clonedEvent->WidgetEventPtr();
internalEvent->mFlags.mOnlyChromeDispatch = true;
}
DispatchEvent(*clonedEvent);
}
already_AddRefed<StorageEvent> nsGlobalWindowInner::CloneStorageEvent(
const nsAString& aType, const RefPtr<StorageEvent>& aEvent,
ErrorResult& aRv) {
StorageEventInit dict;
dict.mBubbles = aEvent->Bubbles();
dict.mCancelable = aEvent->Cancelable();
aEvent->GetKey(dict.mKey);
aEvent->GetOldValue(dict.mOldValue);
aEvent->GetNewValue(dict.mNewValue);
aEvent->GetUrl(dict.mUrl);
RefPtr<Storage> storageArea = aEvent->GetStorageArea();
RefPtr<Storage> storage;
// If null, this is a localStorage event received by IPC.
if (!storageArea) {
storage = GetLocalStorage(aRv);
if (!NextGenLocalStorageEnabled()) {
if (aRv.Failed() || !storage) {
return nullptr;
}
if (storage->Type() == Storage::eLocalStorage) {
RefPtr<LocalStorage> localStorage =
static_cast<LocalStorage*>(storage.get());
// We must apply the current change to the 'local' localStorage.
localStorage->ApplyEvent(aEvent);
}
}
} else if (storageArea->Type() == Storage::eSessionStorage) {
storage = GetSessionStorage(aRv);
} else {
MOZ_ASSERT(storageArea->Type() == Storage::eLocalStorage);
storage = GetLocalStorage(aRv);
}
if (aRv.Failed() || !storage) {
return nullptr;
}
if (storage->Type() == Storage::ePartitionedLocalStorage) {
// This error message is not exposed.
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
MOZ_ASSERT(storage);
MOZ_ASSERT_IF(storageArea, storage->IsForkOf(storageArea));
dict.mStorageArea = storage;
RefPtr<StorageEvent> event = StorageEvent::Constructor(this, aType, dict);
return event.forget();
}
void nsGlobalWindowInner::Suspend() {
MOZ_ASSERT(NS_IsMainThread());
// We can only safely suspend windows that are the current inner window. If
// its not the current inner, then we are in one of two different cases.
// Either we are in the bfcache or we are doomed window that is going away.
// When a window becomes inactive we purposely avoid placing already suspended
// windows into the bfcache. It only expects windows suspended due to the
// Freeze() method which occurs while the window is still the current inner.
// So we must not call Suspend() on bfcache windows at this point or this
// invariant will be broken. If the window is doomed there is no point in
// suspending it since it will soon be gone.
if (!IsCurrentInnerWindow()) {
return;
}
// All children are also suspended. This ensure mSuspendDepth is
// set properly and the timers are properly canceled for each child.
CallOnChildren(&nsGlobalWindowInner::Suspend);
mSuspendDepth += 1;
if (mSuspendDepth != 1) {
return;
}
nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
if (ac) {
for (uint32_t i = 0; i < mEnabledSensors.Length(); i++)
ac->RemoveWindowListener(mEnabledSensors[i], this);
}
DisableGamepadUpdates();
DisableVRUpdates();
SuspendWorkersForWindow(this);
nsTObserverArray<RefPtr<mozilla::dom::SharedWorker>>::ForwardIterator iter(
mSharedWorkers);
while (iter.HasMore()) {
iter.GetNext()->Suspend();
}
SuspendIdleRequests();
mTimeoutManager->Suspend();
// Suspend all of the AudioContexts for this window
for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
mAudioContexts[i]->SuspendFromChrome();
}
}
void nsGlobalWindowInner::Resume() {
MOZ_ASSERT(NS_IsMainThread());
// We can only safely resume a window if its the current inner window. If
// its not the current inner, then we are in one of two different cases.
// Either we are in the bfcache or we are doomed window that is going away.
// If a window is suspended when it becomes inactive we purposely do not
// put it in the bfcache, so Resume should never be needed in that case.
// If the window is doomed then there is no point in resuming it.
if (!IsCurrentInnerWindow()) {
return;
}
// Resume all children. This restores timers recursively canceled
// in Suspend() and ensures all children have the correct mSuspendDepth.
CallOnChildren(&nsGlobalWindowInner::Resume);
MOZ_ASSERT(mSuspendDepth != 0);
mSuspendDepth -= 1;
if (mSuspendDepth != 0) {
return;
}
// We should not be able to resume a frozen window. It must be Thaw()'d
// first.
MOZ_ASSERT(mFreezeDepth == 0);
nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
if (ac) {
for (uint32_t i = 0; i < mEnabledSensors.Length(); i++)
ac->AddWindowListener(mEnabledSensors[i], this);
}
EnableGamepadUpdates();
EnableVRUpdates();
// Resume all of the AudioContexts for this window
for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
mAudioContexts[i]->ResumeFromChrome();
}
mTimeoutManager->Resume();
ResumeIdleRequests();
// Resume all of the workers for this window. We must do this
// after timeouts since workers may have queued events that can trigger
// a setTimeout().
ResumeWorkersForWindow(this);
nsTObserverArray<RefPtr<mozilla::dom::SharedWorker>>::ForwardIterator iter(
mSharedWorkers);
while (iter.HasMore()) {
iter.GetNext()->Resume();
}
}
bool nsGlobalWindowInner::IsSuspended() const {
MOZ_ASSERT(NS_IsMainThread());
return mSuspendDepth != 0;
}
void nsGlobalWindowInner::Freeze() {
MOZ_ASSERT(NS_IsMainThread());
Suspend();
FreezeInternal();
}
void nsGlobalWindowInner::FreezeInternal() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_DIAGNOSTIC_ASSERT(IsCurrentInnerWindow());
MOZ_DIAGNOSTIC_ASSERT(IsSuspended());
CallOnChildren(&nsGlobalWindowInner::FreezeInternal);
mFreezeDepth += 1;
MOZ_ASSERT(mSuspendDepth >= mFreezeDepth);
if (mFreezeDepth != 1) {
return;
}
FreezeWorkersForWindow(this);
nsTObserverArray<RefPtr<mozilla::dom::SharedWorker>>::ForwardIterator iter(
mSharedWorkers);
while (iter.HasMore()) {
iter.GetNext()->Freeze();
}
mTimeoutManager->Freeze();
if (mClientSource) {
mClientSource->Freeze();
}
NotifyDOMWindowFrozen(this);
}
void nsGlobalWindowInner::Thaw() {
MOZ_ASSERT(NS_IsMainThread());
ThawInternal();
Resume();
}
void nsGlobalWindowInner::ThawInternal() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_DIAGNOSTIC_ASSERT(IsCurrentInnerWindow());
MOZ_DIAGNOSTIC_ASSERT(IsSuspended());
CallOnChildren(&nsGlobalWindowInner::ThawInternal);
MOZ_ASSERT(mFreezeDepth != 0);
mFreezeDepth -= 1;
MOZ_ASSERT(mSuspendDepth >= mFreezeDepth);
if (mFreezeDepth != 0) {
return;
}
if (mClientSource) {
mClientSource->Thaw();
}
mTimeoutManager->Thaw();
ThawWorkersForWindow(this);
nsTObserverArray<RefPtr<mozilla::dom::SharedWorker>>::ForwardIterator iter(
mSharedWorkers);
while (iter.HasMore()) {
iter.GetNext()->Thaw();
}
NotifyDOMWindowThawed(this);
}
bool nsGlobalWindowInner::IsFrozen() const {
MOZ_ASSERT(NS_IsMainThread());
bool frozen = mFreezeDepth != 0;
MOZ_ASSERT_IF(frozen, IsSuspended());
return frozen;
}
void nsGlobalWindowInner::SyncStateFromParentWindow() {
// This method should only be called on an inner window that has been
// assigned to an outer window already.
MOZ_ASSERT(IsCurrentInnerWindow());
nsPIDOMWindowOuter* outer = GetOuterWindow();
MOZ_ASSERT(outer);
// Attempt to find our parent windows.
nsCOMPtr<Element> frame = outer->GetFrameElementInternal();
nsPIDOMWindowOuter* parentOuter =
frame ? frame->OwnerDoc()->GetWindow() : nullptr;
nsGlobalWindowInner* parentInner =
parentOuter
? nsGlobalWindowInner::Cast(parentOuter->GetCurrentInnerWindow())
: nullptr;
// If our outer is in a modal state, but our parent is not in a modal
// state, then we must apply the suspend directly. If our parent is
// in a modal state then we should get the suspend automatically
// via the parentSuspendDepth application below.
if ((!parentInner || !parentInner->IsInModalState()) && IsInModalState()) {
Suspend();
}
uint32_t parentFreezeDepth = parentInner ? parentInner->mFreezeDepth : 0;
uint32_t parentSuspendDepth = parentInner ? parentInner->mSuspendDepth : 0;
// Since every Freeze() calls Suspend(), the suspend count must
// be equal or greater to the freeze count.
MOZ_ASSERT(parentFreezeDepth <= parentSuspendDepth);
// First apply the Freeze() calls.
for (uint32_t i = 0; i < parentFreezeDepth; ++i) {
Freeze();
}
// Now apply only the number of Suspend() calls to reach the target
// suspend count after applying the Freeze() calls.
for (uint32_t i = 0; i < (parentSuspendDepth - parentFreezeDepth); ++i) {
Suspend();
}
}
template <typename Method, typename... Args>
nsGlobalWindowInner::CallState nsGlobalWindowInner::CallOnChildren(
Method aMethod, Args&... aArgs) {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(IsCurrentInnerWindow());
CallState state = CallState::Continue;
nsCOMPtr<nsIDocShell> docShell = GetDocShell();
if (!docShell) {
return state;
}
int32_t childCount = 0;
docShell->GetChildCount(&childCount);
// Take a copy of the current children so that modifications to
// the child list don't affect to the iteration.
AutoTArray<nsCOMPtr<nsIDocShellTreeItem>, 8> children;
for (int32_t i = 0; i < childCount; ++i) {
nsCOMPtr<nsIDocShellTreeItem> childShell;
docShell->GetChildAt(i, getter_AddRefs(childShell));
if (childShell) {
children.AppendElement(childShell);
}
}
for (nsCOMPtr<nsIDocShellTreeItem> childShell : children) {
nsCOMPtr<nsPIDOMWindowOuter> pWin = childShell->GetWindow();
if (!pWin) {
continue;
}
auto* win = nsGlobalWindowOuter::Cast(pWin);
nsGlobalWindowInner* inner = win->GetCurrentInnerWindowInternal();
// This is a bit hackish. Only freeze/suspend windows which are truly our
// subwindows.
nsCOMPtr<Element> frame = pWin->GetFrameElementInternal();
if (!mDoc || !frame || mDoc != frame->OwnerDoc() || !inner) {
continue;
}
// Call the child method using our helper CallChild() template method.
// This allows us to handle both void returning methods and methods
// that return CallState explicitly. For void returning methods we
// assume CallState::Continue.
typedef decltype((inner->*aMethod)(aArgs...)) returnType;
state = CallChild<returnType>(inner, aMethod, aArgs...);
if (state == CallState::Stop) {
return state;
}
}
return state;
}
Maybe<ClientInfo> nsGlobalWindowInner::GetClientInfo() const {
MOZ_ASSERT(NS_IsMainThread());
Maybe<ClientInfo> clientInfo;
if (mClientSource) {
clientInfo.emplace(mClientSource->Info());
}
return clientInfo;
}
Maybe<ClientState> nsGlobalWindowInner::GetClientState() const {
MOZ_ASSERT(NS_IsMainThread());
Maybe<ClientState> clientState;
if (mClientSource) {
ClientState state;
nsresult rv = mClientSource->SnapshotState(&state);
if (NS_SUCCEEDED(rv)) {
clientState.emplace(state);
}
}
return clientState;
}
Maybe<ServiceWorkerDescriptor> nsGlobalWindowInner::GetController() const {
MOZ_ASSERT(NS_IsMainThread());
Maybe<ServiceWorkerDescriptor> controller;
if (mClientSource) {
controller = mClientSource->GetController();
}
return controller;
}
RefPtr<ServiceWorker> nsGlobalWindowInner::GetOrCreateServiceWorker(
const ServiceWorkerDescriptor& aDescriptor) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorker> ref;
ForEachEventTargetObject([&](DOMEventTargetHelper* aTarget, bool* aDoneOut) {
RefPtr<ServiceWorker> sw = do_QueryObject(aTarget);
if (!sw || !sw->Descriptor().Matches(aDescriptor)) {
return;
}
ref = sw.forget();
*aDoneOut = true;
});
if (!ref) {
ref = ServiceWorker::Create(this, aDescriptor);
}
return ref.forget();
}
RefPtr<mozilla::dom::ServiceWorkerRegistration>
nsGlobalWindowInner::GetServiceWorkerRegistration(
const mozilla::dom::ServiceWorkerRegistrationDescriptor& aDescriptor)
const {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerRegistration> ref;
ForEachEventTargetObject([&](DOMEventTargetHelper* aTarget, bool* aDoneOut) {
RefPtr<ServiceWorkerRegistration> swr = do_QueryObject(aTarget);
if (!swr || !swr->MatchesDescriptor(aDescriptor)) {
return;
}
ref = swr.forget();
*aDoneOut = true;
});
return ref.forget();
}
RefPtr<ServiceWorkerRegistration>
nsGlobalWindowInner::GetOrCreateServiceWorkerRegistration(
const ServiceWorkerRegistrationDescriptor& aDescriptor) {
MOZ_ASSERT(NS_IsMainThread());
RefPtr<ServiceWorkerRegistration> ref =
GetServiceWorkerRegistration(aDescriptor);
if (!ref) {
ref = ServiceWorkerRegistration::CreateForMainThread(this, aDescriptor);
}
return ref.forget();
}
nsresult nsGlobalWindowInner::FireDelayedDOMEvents() {
if (mApplicationCache) {
static_cast<nsDOMOfflineResourceList*>(mApplicationCache.get())
->FirePendingEvents();
}
// Fires an offline status event if the offline status has changed
FireOfflineStatusEventIfChanged();
nsCOMPtr<nsIDocShell> docShell = GetDocShell();
if (docShell) {
int32_t childCount = 0;
docShell->GetChildCount(&childCount);
// Take a copy of the current children so that modifications to
// the child list don't affect to the iteration.
AutoTArray<nsCOMPtr<nsIDocShellTreeItem>, 8> children;
for (int32_t i = 0; i < childCount; ++i) {
nsCOMPtr<nsIDocShellTreeItem> childShell;
docShell->GetChildAt(i, getter_AddRefs(childShell));
if (childShell) {
children.AppendElement(childShell);
}
}
for (nsCOMPtr<nsIDocShellTreeItem> childShell : children) {
if (nsCOMPtr<nsPIDOMWindowOuter> pWin = childShell->GetWindow()) {
auto* win = nsGlobalWindowOuter::Cast(pWin);
win->FireDelayedDOMEvents();
}
}
}
return NS_OK;
}
//*****************************************************************************
// nsGlobalWindowInner: Window Control Functions
//*****************************************************************************
nsPIDOMWindowOuter* nsGlobalWindowInner::GetParentInternal() {
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (!outer) {
// No outer window available!
return nullptr;
}
return outer->GetParentInternal();
}
nsIPrincipal* nsGlobalWindowInner::GetTopLevelPrincipal() {
nsPIDOMWindowOuter* outerWindow = GetOuterWindowInternal();
if (!outerWindow) {
return nullptr;
}
nsPIDOMWindowOuter* topLevelOuterWindow = GetTopInternal();
if (!topLevelOuterWindow) {
return nullptr;
}
if (topLevelOuterWindow == outerWindow) {
return nullptr;
}
nsPIDOMWindowInner* topLevelInnerWindow =
topLevelOuterWindow->GetCurrentInnerWindow();
if (NS_WARN_IF(!topLevelInnerWindow)) {
return nullptr;
}
nsIPrincipal* topLevelPrincipal =
nsGlobalWindowInner::Cast(topLevelInnerWindow)->GetPrincipal();
if (NS_WARN_IF(!topLevelPrincipal)) {
return nullptr;
}
return topLevelPrincipal;
}
nsIPrincipal* nsGlobalWindowInner::GetTopLevelStorageAreaPrincipal() {
if (mDoc && (mDoc->StorageAccessSandboxed() ||
nsContentUtils::IsInPrivateBrowsing(mDoc))) {
// Storage access is disabled
return nullptr;
}
nsPIDOMWindowOuter* outerWindow = GetParentInternal();
if (!outerWindow) {
// No outer window available!
return nullptr;
}
if (!outerWindow->IsTopLevelWindow()) {
return nullptr;
}
nsPIDOMWindowInner* innerWindow = outerWindow->GetCurrentInnerWindow();
if (NS_WARN_IF(!innerWindow)) {
return nullptr;
}
nsIPrincipal* parentPrincipal =
nsGlobalWindowInner::Cast(innerWindow)->GetPrincipal();
if (NS_WARN_IF(!parentPrincipal)) {
return nullptr;
}
return parentPrincipal;
}
//*****************************************************************************
// nsGlobalWindowInner: Timeout Functions
//*****************************************************************************
nsGlobalWindowInner* nsGlobalWindowInner::InnerForSetTimeoutOrInterval(
ErrorResult& aError) {
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
nsGlobalWindowInner* currentInner =
outer ? outer->GetCurrentInnerWindowInternal() : this;
// If forwardTo is not the window with an active document then we want the
// call to setTimeout/Interval to be a noop, so return null but don't set an
// error.
return HasActiveDocument() ? currentInner : nullptr;
}
int32_t nsGlobalWindowInner::SetTimeout(JSContext* aCx, Function& aFunction,
int32_t aTimeout,
const Sequence<JS::Value>& aArguments,
ErrorResult& aError) {
return SetTimeoutOrInterval(aCx, aFunction, aTimeout, aArguments, false,
aError);
}
int32_t nsGlobalWindowInner::SetTimeout(JSContext* aCx,
const nsAString& aHandler,
int32_t aTimeout,
const Sequence<JS::Value>& /* unused */,
ErrorResult& aError) {
return SetTimeoutOrInterval(aCx, aHandler, aTimeout, false, aError);
}
int32_t nsGlobalWindowInner::SetInterval(JSContext* aCx, Function& aFunction,
const int32_t aTimeout,
const Sequence<JS::Value>& aArguments,
ErrorResult& aError) {
return SetTimeoutOrInterval(aCx, aFunction, aTimeout, aArguments, true,
aError);
}
int32_t nsGlobalWindowInner::SetInterval(
JSContext* aCx, const nsAString& aHandler, const int32_t aTimeout,
const Sequence<JS::Value>& /* unused */, ErrorResult& aError) {
return SetTimeoutOrInterval(aCx, aHandler, aTimeout, true, aError);
}
int32_t nsGlobalWindowInner::SetTimeoutOrInterval(
JSContext* aCx, Function& aFunction, int32_t aTimeout,
const Sequence<JS::Value>& aArguments, bool aIsInterval,
ErrorResult& aError) {
nsGlobalWindowInner* inner = InnerForSetTimeoutOrInterval(aError);
if (!inner) {
return -1;
}
if (inner != this) {
return inner->SetTimeoutOrInterval(aCx, aFunction, aTimeout, aArguments,
aIsInterval, aError);
}
nsCOMPtr<nsIScriptTimeoutHandler> handler =
NS_CreateJSTimeoutHandler(aCx, this, aFunction, aArguments, aError);
if (!handler) {
return 0;
}
int32_t result;
aError =
mTimeoutManager->SetTimeout(handler, aTimeout, aIsInterval,
Timeout::Reason::eTimeoutOrInterval, &result);
return result;
}
int32_t nsGlobalWindowInner::SetTimeoutOrInterval(JSContext* aCx,
const nsAString& aHandler,
int32_t aTimeout,
bool aIsInterval,
ErrorResult& aError) {
nsGlobalWindowInner* inner = InnerForSetTimeoutOrInterval(aError);
if (!inner) {
return -1;
}
if (inner != this) {
return inner->SetTimeoutOrInterval(aCx, aHandler, aTimeout, aIsInterval,
aError);
}
nsCOMPtr<nsIScriptTimeoutHandler> handler =
NS_CreateJSTimeoutHandler(aCx, this, aHandler, aError);
if (!handler) {
return 0;
}
int32_t result;
aError =
mTimeoutManager->SetTimeout(handler, aTimeout, aIsInterval,
Timeout::Reason::eTimeoutOrInterval, &result);
return result;
}
bool nsGlobalWindowInner::RunTimeoutHandler(Timeout* aTimeout,
nsIScriptContext* aScx) {
// Hold on to the timeout in case mExpr or mFunObj releases its
// doc.
// XXXbz Our caller guarantees it'll hold on to the timeout (because
// we're MOZ_CAN_RUN_SCRIPT), so we can probably stop doing that...
RefPtr<Timeout> timeout = aTimeout;
Timeout* last_running_timeout = mTimeoutManager->BeginRunningTimeout(timeout);
timeout->mRunning = true;
// Push this timeout's popup control state, which should only be
// eabled the first time a timeout fires that was created while
// popups were enabled and with a delay less than
// "dom.disable_open_click_delay".
nsAutoPopupStatePusher popupStatePusher(timeout->mPopupState);
// Clear the timeout's popup state, if any, to prevent interval
// timeouts from repeatedly opening poups.
timeout->mPopupState = PopupBlocker::openAbused;
bool trackNestingLevel = !timeout->mIsInterval;
uint32_t nestingLevel;
if (trackNestingLevel) {
nestingLevel = TimeoutManager::GetNestingLevel();
TimeoutManager::SetNestingLevel(timeout->mNestingLevel);
}
const char* reason;
if (timeout->mIsInterval) {
reason = "setInterval handler";
} else {
reason = "setTimeout handler";
}
bool abortIntervalHandler = false;
nsCOMPtr<nsIScriptTimeoutHandler> handler(
do_QueryInterface(timeout->mScriptHandler));
if (handler) {
RefPtr<Function> callback = handler->GetCallback();
if (!callback) {
// Evaluate the timeout expression.
const char* filename = nullptr;
uint32_t lineNo = 0, dummyColumn = 0;
handler->GetLocation(&filename, &lineNo, &dummyColumn);
// New script entry point required, due to the "Create a script" sub-step
// of
// http://www.whatwg.org/specs/web-apps/current-work/#timer-initialisation-steps
nsAutoMicroTask mt;
AutoEntryScript aes(this, reason, true);
JS::CompileOptions options(aes.cx());
options.setFileAndLine(filename, lineNo);
options.setNoScriptRval(true);
JS::Rooted<JSObject*> global(aes.cx(), GetGlobalJSObject());
nsresult rv;
{
nsJSUtils::ExecutionContext exec(aes.cx(), global);
rv = exec.Compile(options, handler->GetHandlerText());
JS::Rooted<JSScript*> script(aes.cx(), exec.MaybeGetScript());
if (script) {
LoadedScript* initiatingScript = handler->GetInitiatingScript();
if (initiatingScript) {
initiatingScript->AssociateWithScript(script);
}
rv = exec.ExecScript();
}
}
if (rv == NS_SUCCESS_DOM_SCRIPT_EVALUATION_THREW_UNCATCHABLE) {
abortIntervalHandler = true;
}
} else {
// Hold strong ref to ourselves while we call the callback.
nsCOMPtr<nsISupports> me(static_cast<nsIDOMWindow*>(this));
ErrorResult rv;
JS::Rooted<JS::Value> ignoredVal(RootingCx());
callback->Call(me, handler->GetArgs(), &ignoredVal, rv, reason);
if (rv.IsUncatchableException()) {
abortIntervalHandler = true;
}
rv.SuppressException();
}
} else {
nsCOMPtr<nsITimeoutHandler> basicHandler(timeout->mScriptHandler);
nsCOMPtr<nsISupports> kungFuDeathGrip(static_cast<nsIDOMWindow*>(this));
mozilla::Unused << kungFuDeathGrip;
basicHandler->Call();
}
// If we received an uncatchable exception, do not schedule the timeout again.
// This allows the slow script dialog to break easy DoS attacks like
// setInterval(function() { while(1); }, 100);
if (abortIntervalHandler) {
// If it wasn't an interval timer to begin with, this does nothing. If it
// was, we'll treat it as a timeout that we just ran and discard it when
// we return.
timeout->mIsInterval = false;
}
// We ignore any failures from calling EvaluateString() on the context or
// Call() on a Function here since we're in a loop
// where we're likely to be running timeouts whose OS timers
// didn't fire in time and we don't want to not fire those timers
// now just because execution of one timer failed. We can't
// propagate the error to anyone who cares about it from this
// point anyway, and the script context should have already reported
// the script error in the usual way - so we just drop it.
if (trackNestingLevel) {
TimeoutManager::SetNestingLevel(nestingLevel);
}
mTimeoutManager->EndRunningTimeout(last_running_timeout);
timeout->mRunning = false;
return timeout->mCleared;
}
//*****************************************************************************
// nsGlobalWindowInner: Helper Functions
//*****************************************************************************
already_AddRefed<nsIDocShellTreeOwner> nsGlobalWindowInner::GetTreeOwner() {
FORWARD_TO_OUTER(GetTreeOwner, (), nullptr);
}
already_AddRefed<nsIWebBrowserChrome>
nsGlobalWindowInner::GetWebBrowserChrome() {
nsCOMPtr<nsIDocShellTreeOwner> treeOwner = GetTreeOwner();
nsCOMPtr<nsIWebBrowserChrome> browserChrome = do_GetInterface(treeOwner);
return browserChrome.forget();
}
nsIScrollableFrame* nsGlobalWindowInner::GetScrollFrame() {
FORWARD_TO_OUTER(GetScrollFrame, (), nullptr);
}
bool nsGlobalWindowInner::IsPrivateBrowsing() {
nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(GetDocShell());
return loadContext && loadContext->UsePrivateBrowsing();
}
void nsGlobalWindowInner::FlushPendingNotifications(FlushType aType) {
if (mDoc) {
mDoc->FlushPendingNotifications(aType);
}
}
void nsGlobalWindowInner::EnableDeviceSensor(uint32_t aType) {
bool alreadyEnabled = false;
for (uint32_t i = 0; i < mEnabledSensors.Length(); i++) {
if (mEnabledSensors[i] == aType) {
alreadyEnabled = true;
break;
}
}
mEnabledSensors.AppendElement(aType);
if (alreadyEnabled) {
return;
}
nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
if (ac) {
ac->AddWindowListener(aType, this);
}
}
void nsGlobalWindowInner::DisableDeviceSensor(uint32_t aType) {
int32_t doomedElement = -1;
int32_t listenerCount = 0;
for (uint32_t i = 0; i < mEnabledSensors.Length(); i++) {
if (mEnabledSensors[i] == aType) {
doomedElement = i;
listenerCount++;
}
}
if (doomedElement == -1) {
return;
}
mEnabledSensors.RemoveElementAt(doomedElement);
if (listenerCount > 1) {
return;
}
nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
if (ac) {
ac->RemoveWindowListener(aType, this);
}
}
#if defined(MOZ_WIDGET_ANDROID)
void nsGlobalWindowInner::EnableOrientationChangeListener() {
if (!nsContentUtils::ShouldResistFingerprinting(GetDocShell()) &&
!mOrientationChangeObserver) {
mOrientationChangeObserver = MakeUnique<WindowOrientationObserver>(this);
}
}
void nsGlobalWindowInner::DisableOrientationChangeListener() {
mOrientationChangeObserver = nullptr;
}
#endif
void nsGlobalWindowInner::SetHasGamepadEventListener(
bool aHasGamepad /* = true*/) {
mHasGamepad = aHasGamepad;
if (aHasGamepad) {
EnableGamepadUpdates();
}
}
void nsGlobalWindowInner::EventListenerAdded(nsAtom* aType) {
if (aType == nsGkAtoms::onvrdisplayactivate ||
aType == nsGkAtoms::onvrdisplayconnect ||
aType == nsGkAtoms::onvrdisplaydeactivate ||
aType == nsGkAtoms::onvrdisplaydisconnect ||
aType == nsGkAtoms::onvrdisplaypresentchange) {
NotifyVREventListenerAdded();
}
if (aType == nsGkAtoms::onvrdisplayactivate) {
mHasVRDisplayActivateEvents = true;
}
if (aType == nsGkAtoms::onbeforeunload && mBrowserChild &&
(!mDoc || !(mDoc->GetSandboxFlags() & SANDBOXED_MODALS))) {
mBeforeUnloadListenerCount++;
MOZ_ASSERT(mBeforeUnloadListenerCount > 0);
mBrowserChild->BeforeUnloadAdded();
}
// We need to initialize localStorage in order to receive notifications.
if (aType == nsGkAtoms::onstorage) {
ErrorResult rv;
GetLocalStorage(rv);
rv.SuppressException();
if (NextGenLocalStorageEnabled() && mLocalStorage &&
mLocalStorage->Type() == Storage::eLocalStorage) {
auto object = static_cast<LSObject*>(mLocalStorage.get());
Unused << NS_WARN_IF(NS_FAILED(object->EnsureObserver()));
}
}
}
void nsGlobalWindowInner::EventListenerRemoved(nsAtom* aType) {
if (aType == nsGkAtoms::onbeforeunload && mBrowserChild &&
(!mDoc || !(mDoc->GetSandboxFlags() & SANDBOXED_MODALS))) {
mBeforeUnloadListenerCount--;
MOZ_ASSERT(mBeforeUnloadListenerCount >= 0);
mBrowserChild->BeforeUnloadRemoved();
}
if (aType == nsGkAtoms::onstorage) {
if (NextGenLocalStorageEnabled() && mLocalStorage &&
mLocalStorage->Type() == Storage::eLocalStorage &&
// The remove event is fired even if this isn't the last listener, so
// only remove if there are no other listeners left.
mListenerManager &&
!mListenerManager->HasListenersFor(nsGkAtoms::onstorage)) {
auto object = static_cast<LSObject*>(mLocalStorage.get());
object->DropObserver();
}
}
}
void nsGlobalWindowInner::NotifyVREventListenerAdded() {
mHasVREvents = true;
EnableVRUpdates();
}
bool nsGlobalWindowInner::HasUsedVR() const {
// Returns true only if any WebVR API call or related event
// has been used
return mHasVREvents;
}
bool nsGlobalWindowInner::IsVRContentDetected() const {
// Returns true only if the content will respond to
// the VRDisplayActivate event.
return mHasVRDisplayActivateEvents;
}
bool nsGlobalWindowInner::IsVRContentPresenting() const {
for (const auto& display : mVRDisplays) {
if (display->IsAnyPresenting(gfx::kVRGroupAll)) {
return true;
}
}
return false;
}
void nsGlobalWindowInner::AddSizeOfIncludingThis(
nsWindowSizes& aWindowSizes) const {
aWindowSizes.mDOMOtherSize += aWindowSizes.mState.mMallocSizeOf(this);
aWindowSizes.mDOMOtherSize += nsIGlobalObject::ShallowSizeOfExcludingThis(
aWindowSizes.mState.mMallocSizeOf);
EventListenerManager* elm = GetExistingListenerManager();
if (elm) {
aWindowSizes.mDOMOtherSize +=
elm->SizeOfIncludingThis(aWindowSizes.mState.mMallocSizeOf);
aWindowSizes.mDOMEventListenersCount += elm->ListenerCount();
}
if (mDoc) {
// Multiple global windows can share a document. So only measure the
// document if it (a) doesn't have a global window, or (b) it's the
// primary document for the window.
if (!mDoc->GetInnerWindow() || mDoc->GetInnerWindow() == this) {
mDoc->DocAddSizeOfIncludingThis(aWindowSizes);
}
}
if (mNavigator) {
aWindowSizes.mDOMOtherSize +=
mNavigator->SizeOfIncludingThis(aWindowSizes.mState.mMallocSizeOf);
}
ForEachEventTargetObject([&](DOMEventTargetHelper* et, bool* aDoneOut) {
if (nsCOMPtr<nsISizeOfEventTarget> iSizeOf = do_QueryObject(et)) {
aWindowSizes.mDOMEventTargetsSize +=
iSizeOf->SizeOfEventTargetIncludingThis(
aWindowSizes.mState.mMallocSizeOf);
}
if (EventListenerManager* elm = et->GetExistingListenerManager()) {
aWindowSizes.mDOMEventListenersCount += elm->ListenerCount();
}
++aWindowSizes.mDOMEventTargetsCount;
});
if (mPerformance) {
aWindowSizes.mDOMPerformanceUserEntries =
mPerformance->SizeOfUserEntries(aWindowSizes.mState.mMallocSizeOf);
aWindowSizes.mDOMPerformanceResourceEntries =
mPerformance->SizeOfResourceEntries(aWindowSizes.mState.mMallocSizeOf);
}
aWindowSizes.mDOMOtherSize += mPendingPromises.ShallowSizeOfExcludingThis(
aWindowSizes.mState.mMallocSizeOf);
}
void nsGlobalWindowInner::AddGamepad(uint32_t aIndex, Gamepad* aGamepad) {
// Create the index we will present to content based on which indices are
// already taken, as required by the spec.
// https://w3c.github.io/gamepad/gamepad.html#widl-Gamepad-index
int index = 0;
while (mGamepadIndexSet.Contains(index)) {
++index;
}
mGamepadIndexSet.Put(index);
aGamepad->SetIndex(index);
mGamepads.Put(aIndex, aGamepad);
}
void nsGlobalWindowInner::RemoveGamepad(uint32_t aIndex) {
RefPtr<Gamepad> gamepad;
if (!mGamepads.Get(aIndex, getter_AddRefs(gamepad))) {
return;
}
// Free up the index we were using so it can be reused
mGamepadIndexSet.Remove(gamepad->Index());
mGamepads.Remove(aIndex);
}
void nsGlobalWindowInner::GetGamepads(nsTArray<RefPtr<Gamepad>>& aGamepads) {
aGamepads.Clear();
// navigator.getGamepads() always returns an empty array when
// privacy.resistFingerprinting is true.
if (nsContentUtils::ShouldResistFingerprinting(GetDocShell())) {
return;
}
// mGamepads.Count() may not be sufficient, but it's not harmful.
aGamepads.SetCapacity(mGamepads.Count());
for (auto iter = mGamepads.Iter(); !iter.Done(); iter.Next()) {
Gamepad* gamepad = iter.UserData();
aGamepads.EnsureLengthAtLeast(gamepad->Index() + 1);
aGamepads[gamepad->Index()] = gamepad;
}
}
already_AddRefed<Gamepad> nsGlobalWindowInner::GetGamepad(uint32_t aIndex) {
RefPtr<Gamepad> gamepad;
if (mGamepads.Get(aIndex, getter_AddRefs(gamepad))) {
return gamepad.forget();
}
return nullptr;
}
void nsGlobalWindowInner::SetHasSeenGamepadInput(bool aHasSeen) {
mHasSeenGamepadInput = aHasSeen;
}
bool nsGlobalWindowInner::HasSeenGamepadInput() { return mHasSeenGamepadInput; }
void nsGlobalWindowInner::SyncGamepadState() {
if (mHasSeenGamepadInput) {
RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
for (auto iter = mGamepads.Iter(); !iter.Done(); iter.Next()) {
gamepadManager->SyncGamepadState(iter.Key(), this, iter.UserData());
}
}
}
void nsGlobalWindowInner::StopGamepadHaptics() {
if (mHasSeenGamepadInput) {
RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
gamepadManager->StopHaptics();
}
}
bool nsGlobalWindowInner::UpdateVRDisplays(
nsTArray<RefPtr<mozilla::dom::VRDisplay>>& aDevices) {
VRDisplay::UpdateVRDisplays(mVRDisplays, this);
aDevices = mVRDisplays;
return true;
}
void nsGlobalWindowInner::NotifyActiveVRDisplaysChanged() {
if (mNavigator) {
mNavigator->NotifyActiveVRDisplaysChanged();
}
}
void nsGlobalWindowInner::NotifyPresentationGenerationChanged(
uint32_t aDisplayID) {
for (const auto& display : mVRDisplays) {
if (display->DisplayId() == aDisplayID) {
display->OnPresentationGenerationChanged();
}
}
}
void nsGlobalWindowInner::DispatchVRDisplayActivate(
uint32_t aDisplayID, mozilla::dom::VRDisplayEventReason aReason) {
// Ensure that our list of displays is up to date
VRDisplay::UpdateVRDisplays(mVRDisplays, this);
// Search for the display identified with aDisplayID and fire the
// event if found.
for (const auto& display : mVRDisplays) {
if (display->DisplayId() == aDisplayID) {
if (aReason != VRDisplayEventReason::Navigation &&
display->IsAnyPresenting(gfx::kVRGroupContent)) {
// We only want to trigger this event if nobody is presenting to the
// display already or when a page is loaded by navigating away
// from a page with an active VR Presentation.
continue;
}
VRDisplayEventInit init;
init.mBubbles = false;
init.mCancelable = false;
init.mDisplay = display;
init.mReason.Construct(aReason);
RefPtr<VRDisplayEvent> event = VRDisplayEvent::Constructor(
this, NS_LITERAL_STRING("vrdisplayactivate"), init);
// vrdisplayactivate is a trusted event, allowing VRDisplay.requestPresent
// to be used in response to link traversal, user request (chrome UX), and
// HMD mounting detection sensors.
event->SetTrusted(true);
// VRDisplay.requestPresent normally requires a user gesture; however, an
// exception is made to allow it to be called in response to
// vrdisplayactivate during VR link traversal.
display->StartHandlingVRNavigationEvent();
DispatchEvent(*event);
display->StopHandlingVRNavigationEvent();
// Once we dispatch the event, we must not access any members as an event
// listener can do anything, including closing windows.
return;
}
}
}
void nsGlobalWindowInner::DispatchVRDisplayDeactivate(
uint32_t aDisplayID, mozilla::dom::VRDisplayEventReason aReason) {
// Ensure that our list of displays is up to date
VRDisplay::UpdateVRDisplays(mVRDisplays, this);
// Search for the display identified with aDisplayID and fire the
// event if found.
for (const auto& display : mVRDisplays) {
if (display->DisplayId() == aDisplayID && display->IsPresenting()) {
// We only want to trigger this event to content that is presenting to
// the display already.
VRDisplayEventInit init;
init.mBubbles = false;
init.mCancelable = false;
init.mDisplay = display;
init.mReason.Construct(aReason);
RefPtr<VRDisplayEvent> event = VRDisplayEvent::Constructor(
this, NS_LITERAL_STRING("vrdisplaydeactivate"), init);
event->SetTrusted(true);
DispatchEvent(*event);
// Once we dispatch the event, we must not access any members as an event
// listener can do anything, including closing windows.
return;
}
}
}
void nsGlobalWindowInner::DispatchVRDisplayConnect(uint32_t aDisplayID) {
// Ensure that our list of displays is up to date
VRDisplay::UpdateVRDisplays(mVRDisplays, this);
// Search for the display identified with aDisplayID and fire the
// event if found.
for (const auto& display : mVRDisplays) {
if (display->DisplayId() == aDisplayID) {
// Fire event even if not presenting to the display.
VRDisplayEventInit init;
init.mBubbles = false;
init.mCancelable = false;
init.mDisplay = display;
// VRDisplayEvent.reason is not set for vrdisplayconnect
RefPtr<VRDisplayEvent> event = VRDisplayEvent::Constructor(
this, NS_LITERAL_STRING("vrdisplayconnect"), init);
event->SetTrusted(true);
DispatchEvent(*event);
// Once we dispatch the event, we must not access any members as an event
// listener can do anything, including closing windows.
return;
}
}
}
void nsGlobalWindowInner::DispatchVRDisplayDisconnect(uint32_t aDisplayID) {
// Ensure that our list of displays is up to date
VRDisplay::UpdateVRDisplays(mVRDisplays, this);
// Search for the display identified with aDisplayID and fire the
// event if found.
for (const auto& display : mVRDisplays) {
if (display->DisplayId() == aDisplayID) {
// Fire event even if not presenting to the display.
VRDisplayEventInit init;
init.mBubbles = false;
init.mCancelable = false;
init.mDisplay = display;
// VRDisplayEvent.reason is not set for vrdisplaydisconnect
RefPtr<VRDisplayEvent> event = VRDisplayEvent::Constructor(
this, NS_LITERAL_STRING("vrdisplaydisconnect"), init);
event->SetTrusted(true);
DispatchEvent(*event);
// Once we dispatch the event, we must not access any members as an event
// listener can do anything, including closing windows.
return;
}
}
}
void nsGlobalWindowInner::DispatchVRDisplayPresentChange(uint32_t aDisplayID) {
// Ensure that our list of displays is up to date
VRDisplay::UpdateVRDisplays(mVRDisplays, this);
// Search for the display identified with aDisplayID and fire the
// event if found.
for (const auto& display : mVRDisplays) {
if (display->DisplayId() == aDisplayID) {
// Fire event even if not presenting to the display.
VRDisplayEventInit init;
init.mBubbles = false;
init.mCancelable = false;
init.mDisplay = display;
// VRDisplayEvent.reason is not set for vrdisplaypresentchange
RefPtr<VRDisplayEvent> event = VRDisplayEvent::Constructor(
this, NS_LITERAL_STRING("vrdisplaypresentchange"), init);
event->SetTrusted(true);
DispatchEvent(*event);
// Once we dispatch the event, we must not access any members as an event
// listener can do anything, including closing windows.
return;
}
}
}
enum WindowState {
// These constants need to match the constants in Window.webidl
STATE_MAXIMIZED = 1,
STATE_MINIMIZED = 2,
STATE_NORMAL = 3,
STATE_FULLSCREEN = 4
};
uint16_t nsGlobalWindowInner::WindowState() {
nsCOMPtr<nsIWidget> widget = GetMainWidget();
int32_t mode = widget ? widget->SizeMode() : 0;
switch (mode) {
case nsSizeMode_Minimized:
return STATE_MINIMIZED;
case nsSizeMode_Maximized:
return STATE_MAXIMIZED;
case nsSizeMode_Fullscreen:
return STATE_FULLSCREEN;
case nsSizeMode_Normal:
return STATE_NORMAL;
default:
NS_WARNING("Illegal window state for this chrome window");
break;
}
return STATE_NORMAL;
}
bool nsGlobalWindowInner::IsFullyOccluded() {
nsCOMPtr<nsIWidget> widget = GetMainWidget();
return widget && widget->IsFullyOccluded();
}
void nsGlobalWindowInner::Maximize() {
nsCOMPtr<nsIWidget> widget = GetMainWidget();
if (widget) {
widget->SetSizeMode(nsSizeMode_Maximized);
}
}
void nsGlobalWindowInner::Minimize() {
nsCOMPtr<nsIWidget> widget = GetMainWidget();
if (widget) {
widget->SetSizeMode(nsSizeMode_Minimized);
}
}
void nsGlobalWindowInner::Restore() {
nsCOMPtr<nsIWidget> widget = GetMainWidget();
if (widget) {
widget->SetSizeMode(nsSizeMode_Normal);
}
}
void nsGlobalWindowInner::GetAttention(ErrorResult& aResult) {
return GetAttentionWithCycleCount(-1, aResult);
}
void nsGlobalWindowInner::GetAttentionWithCycleCount(int32_t aCycleCount,
ErrorResult& aError) {
nsCOMPtr<nsIWidget> widget = GetMainWidget();
if (widget) {
aError = widget->GetAttention(aCycleCount);
}
}
already_AddRefed<Promise> nsGlobalWindowInner::PromiseDocumentFlushed(
PromiseDocumentFlushedCallback& aCallback, ErrorResult& aError) {
MOZ_RELEASE_ASSERT(IsChromeWindow());
if (!IsCurrentInnerWindow()) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
if (mIteratingDocumentFlushedResolvers) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
if (!mDoc) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
PresShell* presShell = mDoc->GetPresShell();
if (!presShell) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
// We need to associate the lifetime of the Promise to the lifetime
// of the caller's global. That way, if the window we're observing
// refresh driver ticks on goes away before our observer is fired,
// we can still resolve the Promise.
nsIGlobalObject* global = GetIncumbentGlobal();
if (!global) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<Promise> resultPromise = Promise::Create(global, aError);
if (aError.Failed()) {
return nullptr;
}
UniquePtr<PromiseDocumentFlushedResolver> flushResolver(
new PromiseDocumentFlushedResolver(resultPromise, aCallback));
if (!presShell->NeedStyleFlush() && !presShell->NeedLayoutFlush()) {
flushResolver->Call();
return resultPromise.forget();
}
if (!mObservingDidRefresh) {
bool success = presShell->AddPostRefreshObserver(this);
if (!success) {
aError.Throw(NS_ERROR_FAILURE);
return nullptr;
}
mObservingDidRefresh = true;
}
mDocumentFlushedResolvers.AppendElement(std::move(flushResolver));
return resultPromise.forget();
}
template <bool call>
void nsGlobalWindowInner::CallOrCancelDocumentFlushedResolvers() {
MOZ_ASSERT(!mIteratingDocumentFlushedResolvers);
while (true) {
{
// To coalesce MicroTask checkpoints inside callback call, enclose the
// inner loop with nsAutoMicroTask, and perform a MicroTask checkpoint
// after the loop.
nsAutoMicroTask mt;
mIteratingDocumentFlushedResolvers = true;
for (const auto& documentFlushedResolver : mDocumentFlushedResolvers) {
if (call) {
documentFlushedResolver->Call();
} else {
documentFlushedResolver->Cancel();
}
}
mDocumentFlushedResolvers.Clear();
mIteratingDocumentFlushedResolvers = false;
}
// Leaving nsAutoMicroTask above will perform MicroTask checkpoint, and
// Promise callbacks there may create mDocumentFlushedResolvers items.
// If there's no new item, there's nothing to do here.
if (!mDocumentFlushedResolvers.Length()) {
break;
}
// If there are new items, the observer is not added for them when calling
// PromiseDocumentFlushed. Add here and leave.
// FIXME: Handle this case inside PromiseDocumentFlushed (bug 1442824).
if (mDoc) {
PresShell* presShell = mDoc->GetPresShell();
if (presShell) {
Unused << presShell->AddPostRefreshObserver(this);
break;
}
}
// If we fail adding observer, keep looping to resolve or reject all
// promises. This case happens while destroying window.
// This violates the constraint that the promiseDocumentFlushed callback
// only ever run when no flush needed, but it's necessary to resolve
// Promise returned by that.
}
}
void nsGlobalWindowInner::CallDocumentFlushedResolvers() {
CallOrCancelDocumentFlushedResolvers<true>();
}
void nsGlobalWindowInner::CancelDocumentFlushedResolvers() {
CallOrCancelDocumentFlushedResolvers<false>();
}
void nsGlobalWindowInner::DidRefresh() {
auto rejectionGuard = MakeScopeExit([&] {
CancelDocumentFlushedResolvers();
mObservingDidRefresh = false;
});
MOZ_ASSERT(mDoc);
PresShell* presShell = mDoc->GetPresShell();
MOZ_ASSERT(presShell);
if (presShell->NeedStyleFlush() || presShell->NeedLayoutFlush()) {
// By the time our observer fired, something has already invalidated
// style or layout - or perhaps we're still in the middle of a flush that
// was interrupted. In either case, we'll wait until the next refresh driver
// tick instead and try again.
rejectionGuard.release();
return;
}
bool success = presShell->RemovePostRefreshObserver(this);
if (!success) {
return;
}
rejectionGuard.release();
CallDocumentFlushedResolvers();
mObservingDidRefresh = false;
}
already_AddRefed<nsWindowRoot> nsGlobalWindowInner::GetWindowRoot(
mozilla::ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetWindowRootOuter, (), aError, nullptr);
}
void nsGlobalWindowInner::SetCursor(const nsAString& aCursor,
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetCursorOuter, (aCursor, aError), aError, );
}
NS_IMETHODIMP
nsGlobalWindowInner::GetBrowserDOMWindow(nsIBrowserDOMWindow** aBrowserWindow) {
MOZ_RELEASE_ASSERT(IsChromeWindow());
ErrorResult rv;
NS_IF_ADDREF(*aBrowserWindow = GetBrowserDOMWindow(rv));
return rv.StealNSResult();
}
nsIBrowserDOMWindow* nsGlobalWindowInner::GetBrowserDOMWindow(
ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(GetBrowserDOMWindowOuter, (), aError, nullptr);
}
void nsGlobalWindowInner::SetBrowserDOMWindow(
nsIBrowserDOMWindow* aBrowserWindow, ErrorResult& aError) {
FORWARD_TO_OUTER_OR_THROW(SetBrowserDOMWindowOuter, (aBrowserWindow),
aError, );
}
void nsGlobalWindowInner::NotifyDefaultButtonLoaded(Element& aDefaultButton,
ErrorResult& aError) {
#ifdef MOZ_XUL
// Don't snap to a disabled button.
nsCOMPtr<nsIDOMXULControlElement> xulControl = aDefaultButton.AsXULControl();
if (!xulControl) {
aError.Throw(NS_ERROR_FAILURE);
return;
}
bool disabled;
aError = xulControl->GetDisabled(&disabled);
if (aError.Failed() || disabled) {
return;
}
// Get the button rect in screen coordinates.
nsIFrame* frame = aDefaultButton.GetPrimaryFrame();
if (!frame) {
aError.Throw(NS_ERROR_FAILURE);
return;
}
LayoutDeviceIntRect buttonRect = LayoutDeviceIntRect::FromAppUnitsToNearest(
frame->GetScreenRectInAppUnits(),
frame->PresContext()->AppUnitsPerDevPixel());
// Get the widget rect in screen coordinates.
nsIWidget* widget = GetNearestWidget();
if (!widget) {
aError.Throw(NS_ERROR_FAILURE);
return;
}
LayoutDeviceIntRect widgetRect = widget->GetScreenBounds();
// Convert the buttonRect coordinates from screen to the widget.
buttonRect -= widgetRect.TopLeft();
nsresult rv = widget->OnDefaultButtonLoaded(buttonRect);
if (NS_FAILED(rv) && rv != NS_ERROR_NOT_IMPLEMENTED) {
aError.Throw(rv);
}
#else
aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
#endif
}
ChromeMessageBroadcaster* nsGlobalWindowInner::MessageManager() {
MOZ_ASSERT(IsChromeWindow());
if (!mChromeFields.mMessageManager) {
RefPtr<ChromeMessageBroadcaster> globalMM =
nsFrameMessageManager::GetGlobalMessageManager();
mChromeFields.mMessageManager = new ChromeMessageBroadcaster(globalMM);
}
return mChromeFields.mMessageManager;
}
ChromeMessageBroadcaster* nsGlobalWindowInner::GetGroupMessageManager(
const nsAString& aGroup) {
MOZ_ASSERT(IsChromeWindow());
RefPtr<ChromeMessageBroadcaster> messageManager =
mChromeFields.mGroupMessageManagers.LookupForAdd(aGroup).OrInsert(
[this]() { return new ChromeMessageBroadcaster(MessageManager()); });
return messageManager;
}
void nsGlobalWindowInner::InitWasOffline() { mWasOffline = NS_IsOffline(); }
#if defined(MOZ_WIDGET_ANDROID)
int16_t nsGlobalWindowInner::Orientation(CallerType aCallerType) const {
return nsContentUtils::ResistFingerprinting(aCallerType)
? 0
: WindowOrientationObserver::OrientationAngle();
}
#endif
already_AddRefed<Console> nsGlobalWindowInner::GetConsole(JSContext* aCx,
ErrorResult& aRv) {
if (!mConsole) {
mConsole = Console::Create(aCx, this, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
}
RefPtr<Console> console = mConsole;
return console.forget();
}
bool nsGlobalWindowInner::IsSecureContext() const {
JS::Realm* realm = js::GetNonCCWObjectRealm(GetWrapperPreserveColor());
return JS::GetIsSecureContext(realm);
}
already_AddRefed<External> nsGlobalWindowInner::GetExternal(ErrorResult& aRv) {
#ifdef HAVE_SIDEBAR
if (!mExternal) {
JS::Rooted<JSObject*> jsImplObj(RootingCx());
ConstructJSImplementation("@mozilla.org/sidebar;1", this, &jsImplObj, aRv);
if (aRv.Failed()) {
return nullptr;
}
MOZ_RELEASE_ASSERT(!js::IsWrapper(jsImplObj));
JS::Rooted<JSObject*> jsImplGlobal(RootingCx(),
JS::GetNonCCWObjectGlobal(jsImplObj));
mExternal = new External(jsImplObj, jsImplGlobal, this);
}
RefPtr<External> external = static_cast<External*>(mExternal.get());
return external.forget();
#else
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
return nullptr;
#endif
}
void nsGlobalWindowInner::GetSidebar(OwningExternalOrWindowProxy& aResult,
ErrorResult& aRv) {
#ifdef HAVE_SIDEBAR
// First check for a named frame named "sidebar"
RefPtr<BrowsingContext> domWindow =
GetChildWindow(NS_LITERAL_STRING("sidebar"));
if (domWindow) {
aResult.SetAsWindowProxy() = domWindow.forget();
return;
}
RefPtr<External> external = GetExternal(aRv);
if (external) {
aResult.SetAsExternal() = external;
}
#else
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
#endif
}
void nsGlobalWindowInner::ClearDocumentDependentSlots(JSContext* aCx) {
// If JSAPI OOMs here, there is basically nothing we can do to recover safely.
if (!Window_Binding::ClearCachedDocumentValue(aCx, this) ||
!Window_Binding::ClearCachedPerformanceValue(aCx, this)) {
MOZ_CRASH("Unhandlable OOM while clearing document dependent slots.");
}
}
/* static */
JSObject* nsGlobalWindowInner::CreateNamedPropertiesObject(
JSContext* aCx, JS::Handle<JSObject*> aProto) {
return WindowNamedPropertiesHandler::Create(aCx, aProto);
}
void nsGlobalWindowInner::RedefineProperty(JSContext* aCx,
const char* aPropName,
JS::Handle<JS::Value> aValue,
ErrorResult& aError) {
JS::Rooted<JSObject*> thisObj(aCx, GetWrapperPreserveColor());
if (!thisObj) {
aError.Throw(NS_ERROR_UNEXPECTED);
return;
}
if (!JS_WrapObject(aCx, &thisObj) ||
!JS_DefineProperty(aCx, thisObj, aPropName, aValue, JSPROP_ENUMERATE)) {
aError.Throw(NS_ERROR_FAILURE);
}
}
void nsGlobalWindowInner::GetReplaceableWindowCoord(
JSContext* aCx, nsGlobalWindowInner::WindowCoordGetter aGetter,
JS::MutableHandle<JS::Value> aRetval, CallerType aCallerType,
ErrorResult& aError) {
int32_t coord = (this->*aGetter)(aCallerType, aError);
if (!aError.Failed() && !ToJSValue(aCx, coord, aRetval)) {
aError.Throw(NS_ERROR_FAILURE);
}
}
void nsGlobalWindowInner::SetReplaceableWindowCoord(
JSContext* aCx, nsGlobalWindowInner::WindowCoordSetter aSetter,
JS::Handle<JS::Value> aValue, const char* aPropName, CallerType aCallerType,
ErrorResult& aError) {
/*
* If caller is not chrome and the user has not explicitly exempted the site,
* just treat this the way we would an IDL replaceable property.
*/
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
if (!outer || !outer->CanMoveResizeWindows(aCallerType) || outer->IsFrame()) {
RedefineProperty(aCx, aPropName, aValue, aError);
return;
}
int32_t value;
if (!ValueToPrimitive<int32_t, eDefault>(aCx, aValue, &value)) {
aError.Throw(NS_ERROR_UNEXPECTED);
return;
}
if (nsContentUtils::ShouldResistFingerprinting(GetDocShell())) {
bool innerWidthSpecified = false;
bool innerHeightSpecified = false;
bool outerWidthSpecified = false;
bool outerHeightSpecified = false;
if (strcmp(aPropName, "innerWidth") == 0) {
innerWidthSpecified = true;
} else if (strcmp(aPropName, "innerHeight") == 0) {
innerHeightSpecified = true;
} else if (strcmp(aPropName, "outerWidth") == 0) {
outerWidthSpecified = true;
} else if (strcmp(aPropName, "outerHeight") == 0) {
outerHeightSpecified = true;
}
if (innerWidthSpecified || innerHeightSpecified || outerWidthSpecified ||
outerHeightSpecified) {
nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = outer->GetTreeOwnerWindow();
nsCOMPtr<nsIScreen> screen;
nsCOMPtr<nsIScreenManager> screenMgr(
do_GetService("@mozilla.org/gfx/screenmanager;1"));
int32_t winLeft = 0;
int32_t winTop = 0;
int32_t winWidth = 0;
int32_t winHeight = 0;
double scale = 1.0;
if (treeOwnerAsWin && screenMgr) {
// Acquire current window size.
treeOwnerAsWin->GetUnscaledDevicePixelsPerCSSPixel(&scale);
treeOwnerAsWin->GetPositionAndSize(&winLeft, &winTop, &winWidth,
&winHeight);
winLeft = NSToIntRound(winHeight / scale);
winTop = NSToIntRound(winWidth / scale);
winWidth = NSToIntRound(winWidth / scale);
winHeight = NSToIntRound(winHeight / scale);
// Acquire content window size.
CSSIntSize contentSize;
outer->GetInnerSize(contentSize);
screenMgr->ScreenForRect(winLeft, winTop, winWidth, winHeight,
getter_AddRefs(screen));
if (screen) {
int32_t* targetContentWidth = nullptr;
int32_t* targetContentHeight = nullptr;
int32_t screenWidth = 0;
int32_t screenHeight = 0;
int32_t chromeWidth = 0;
int32_t chromeHeight = 0;
int32_t inputWidth = 0;
int32_t inputHeight = 0;
int32_t unused = 0;
// Get screen dimensions (in device pixels)
screen->GetAvailRect(&unused, &unused, &screenWidth, &screenHeight);
// Convert them to CSS pixels
screenWidth = NSToIntRound(screenWidth / scale);
screenHeight = NSToIntRound(screenHeight / scale);
// Calculate the chrome UI size.
chromeWidth = winWidth - contentSize.width;
chromeHeight = winHeight - contentSize.height;
if (innerWidthSpecified || outerWidthSpecified) {
inputWidth = value;
targetContentWidth = &value;
targetContentHeight = &unused;
} else if (innerHeightSpecified || outerHeightSpecified) {
inputHeight = value;
targetContentWidth = &unused;
targetContentHeight = &value;
}
nsContentUtils::CalcRoundedWindowSizeForResistingFingerprinting(
chromeWidth, chromeHeight, screenWidth, screenHeight, inputWidth,
inputHeight, outerWidthSpecified, outerHeightSpecified,
targetContentWidth, targetContentHeight);
}
}
}
}
(this->*aSetter)(value, aCallerType, aError);
}
void nsGlobalWindowInner::FireOnNewGlobalObject() {
// AutoEntryScript required to invoke debugger hook, which is a
// Gecko-specific concept at present.
AutoEntryScript aes(this, "nsGlobalWindowInner report new global");
JS::Rooted<JSObject*> global(aes.cx(), GetWrapper());
JS_FireOnNewGlobalObject(aes.cx(), global);
}
#if defined(_WINDOWS_) && !defined(MOZ_WRAPPED_WINDOWS_H)
# pragma message( \
"wrapper failure reason: " MOZ_WINDOWS_WRAPPER_DISABLED_REASON)
# error "Never include unwrapped windows.h in this file!"
#endif
already_AddRefed<Promise> nsGlobalWindowInner::CreateImageBitmap(
JSContext* aCx, const ImageBitmapSource& aImage, ErrorResult& aRv) {
return ImageBitmap::Create(this, aImage, Nothing(), aRv);
}
already_AddRefed<Promise> nsGlobalWindowInner::CreateImageBitmap(
JSContext* aCx, const ImageBitmapSource& aImage, int32_t aSx, int32_t aSy,
int32_t aSw, int32_t aSh, ErrorResult& aRv) {
return ImageBitmap::Create(this, aImage,
Some(gfx::IntRect(aSx, aSy, aSw, aSh)), aRv);
}
mozilla::dom::TabGroup* nsGlobalWindowInner::TabGroupInner() {
// If we don't have a TabGroup yet, try to get it from the outer window and
// cache it.
if (!mTabGroup) {
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
// This will never be called without either an outer window, or a cached tab
// group. This is because of the following:
// * This method is only called on inner windows
// * This method is called as a document is attached to it's script global
// by the document
// * Inner windows are created in nsGlobalWindowInner::SetNewDocument, which
// immediately sets a document, which will call this method, causing
// the TabGroup to be cached.
MOZ_RELEASE_ASSERT(
outer, "Inner window without outer window has no cached tab group!");
mTabGroup = outer->TabGroup();
}
MOZ_ASSERT(mTabGroup);
#ifdef DEBUG
nsGlobalWindowOuter* outer = GetOuterWindowInternal();
MOZ_ASSERT_IF(outer, outer->TabGroup() == mTabGroup);
#endif
return mTabGroup;
}
nsresult nsGlobalWindowInner::Dispatch(
TaskCategory aCategory, already_AddRefed<nsIRunnable>&& aRunnable) {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
if (GetDocGroup()) {
return GetDocGroup()->Dispatch(aCategory, std::move(aRunnable));
}
return DispatcherTrait::Dispatch(aCategory, std::move(aRunnable));
}
nsISerialEventTarget* nsGlobalWindowInner::EventTargetFor(
TaskCategory aCategory) const {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
if (GetDocGroup()) {
return GetDocGroup()->EventTargetFor(aCategory);
}
return DispatcherTrait::EventTargetFor(aCategory);
}
AbstractThread* nsGlobalWindowInner::AbstractMainThreadFor(
TaskCategory aCategory) {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
if (GetDocGroup()) {
return GetDocGroup()->AbstractMainThreadFor(aCategory);
}
return DispatcherTrait::AbstractMainThreadFor(aCategory);
}
Worklet* nsGlobalWindowInner::GetPaintWorklet(ErrorResult& aRv) {
if (!mPaintWorklet) {
nsIPrincipal* principal = GetPrincipal();
if (!principal) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
mPaintWorklet = PaintWorkletImpl::CreateWorklet(this, principal);
}
return mPaintWorklet;
}
void nsGlobalWindowInner::GetRegionalPrefsLocales(
nsTArray<nsString>& aLocales) {
MOZ_ASSERT(mozilla::intl::LocaleService::GetInstance());
AutoTArray<nsCString, 10> rpLocales;
mozilla::intl::LocaleService::GetInstance()->GetRegionalPrefsLocales(
rpLocales);
for (const auto& loc : rpLocales) {
aLocales.AppendElement(NS_ConvertUTF8toUTF16(loc));
}
}
void nsGlobalWindowInner::GetWebExposedLocales(nsTArray<nsString>& aLocales) {
MOZ_ASSERT(mozilla::intl::LocaleService::GetInstance());
AutoTArray<nsCString, 10> rpLocales;
mozilla::intl::LocaleService::GetInstance()->GetWebExposedLocales(rpLocales);
for (const auto& loc : rpLocales) {
aLocales.AppendElement(NS_ConvertUTF8toUTF16(loc));
}
}
IntlUtils* nsGlobalWindowInner::GetIntlUtils(ErrorResult& aError) {
if (!mIntlUtils) {
mIntlUtils = new IntlUtils(this);
}
return mIntlUtils;
}
void nsGlobalWindowInner::StoreSharedWorker(SharedWorker* aSharedWorker) {
MOZ_ASSERT(aSharedWorker);
MOZ_ASSERT(!mSharedWorkers.Contains(aSharedWorker));
mSharedWorkers.AppendElement(aSharedWorker);
}
void nsGlobalWindowInner::ForgetSharedWorker(SharedWorker* aSharedWorker) {
MOZ_ASSERT(aSharedWorker);
MOZ_ASSERT(mSharedWorkers.Contains(aSharedWorker));
mSharedWorkers.RemoveElement(aSharedWorker);
}
void nsGlobalWindowInner::StorageAccessGranted() {
PropagateFirstPartyStorageAccessGrantedToWorkers(this);
// If we have a partitioned localStorage, it's time to replace it with a real
// one in order to receive notifications.
if (mLocalStorage &&
mLocalStorage->Type() == Storage::ePartitionedLocalStorage) {
IgnoredErrorResult error;
GetLocalStorage(error);
if (NS_WARN_IF(error.Failed())) {
return;
}
MOZ_ASSERT(mLocalStorage &&
mLocalStorage->Type() == Storage::eLocalStorage);
if (NextGenLocalStorageEnabled() && mListenerManager &&
mListenerManager->HasListenersFor(nsGkAtoms::onstorage)) {
auto object = static_cast<LSObject*>(mLocalStorage.get());
object->EnsureObserver();
}
}
// Reset the IndexedDB factory.
mIndexedDB = nullptr;
}
mozilla::dom::TabGroup* nsPIDOMWindowInner::TabGroup() {
return nsGlobalWindowInner::Cast(this)->TabGroupInner();
}
/* static */
already_AddRefed<nsGlobalWindowInner> nsGlobalWindowInner::Create(
nsGlobalWindowOuter* aOuterWindow, bool aIsChrome) {
RefPtr<nsGlobalWindowInner> window = new nsGlobalWindowInner(aOuterWindow);
if (aIsChrome) {
window->mIsChrome = true;
window->mCleanMessageManager = true;
}
window->InitWasOffline();
return window.forget();
}
nsIURI* nsPIDOMWindowInner::GetDocumentURI() const {
return mDoc ? mDoc->GetDocumentURI() : mDocumentURI.get();
}
nsIURI* nsPIDOMWindowInner::GetDocBaseURI() const {
return mDoc ? mDoc->GetDocBaseURI() : mDocBaseURI.get();
}
void nsPIDOMWindowInner::MaybeCreateDoc() {
// XXX: Forward to outer?
MOZ_ASSERT(!mDoc);
if (nsIDocShell* docShell = GetDocShell()) {
// Note that |document| here is the same thing as our mDoc, but we
// don't have to explicitly set the member variable because the docshell
// has already called SetNewDocument().
nsCOMPtr<Document> document = docShell->GetDocument();
Unused << document;
}
}
mozilla::dom::DocGroup* nsPIDOMWindowInner::GetDocGroup() const {
Document* doc = GetExtantDoc();
if (doc) {
return doc->GetDocGroup();
}
return nullptr;
}
nsIGlobalObject* nsPIDOMWindowInner::AsGlobal() {
return nsGlobalWindowInner::Cast(this);
}
const nsIGlobalObject* nsPIDOMWindowInner::AsGlobal() const {
return nsGlobalWindowInner::Cast(this);
}
void nsPIDOMWindowInner::SaveStorageAccessGranted(
const nsACString& aPermissionKey) {
if (!HasStorageAccessGranted(aPermissionKey)) {
mStorageAccessGranted.AppendElement(aPermissionKey);
}
}
bool nsPIDOMWindowInner::HasStorageAccessGranted(
const nsACString& aPermissionKey) {
return mStorageAccessGranted.Contains(aPermissionKey);
}
// XXX: Can we define this in a header instead of here?
namespace mozilla {
namespace dom {
extern uint64_t NextWindowID();
} // namespace dom
} // namespace mozilla
nsPIDOMWindowInner::nsPIDOMWindowInner(nsPIDOMWindowOuter* aOuterWindow)
: mMutationBits(0),
mActivePeerConnections(0),
mIsDocumentLoaded(false),
mIsHandlingResizeEvent(false),
mMayHavePaintEventListener(false),
mMayHaveTouchEventListener(false),
mMayHaveSelectionChangeEventListener(false),
mMayHaveMouseEnterLeaveEventListener(false),
mMayHavePointerEnterLeaveEventListener(false),
mMayHaveTextEventListenerInDefaultGroup(false),
mOuterWindow(aOuterWindow),
// Make sure no actual window ends up with mWindowID == 0
mWindowID(NextWindowID()),
mHasNotifiedGlobalCreated(false),
mMarkedCCGeneration(0),
mHasTriedToCacheTopInnerWindow(false),
mNumOfIndexedDBDatabases(0),
mNumOfOpenWebSockets(0),
mEvent(nullptr) {
MOZ_ASSERT(aOuterWindow);
}
void nsPIDOMWindowInner::RegisterReportingObserver(ReportingObserver* aObserver,
bool aBuffered) {
MOZ_ASSERT(aObserver);
if (mReportingObservers.Contains(aObserver)) {
return;
}
if (NS_WARN_IF(!mReportingObservers.AppendElement(aObserver, fallible))) {
return;
}
if (!aBuffered) {
return;
}
for (Report* report : mReportRecords) {
aObserver->MaybeReport(report);
}
}
void nsPIDOMWindowInner::UnregisterReportingObserver(
ReportingObserver* aObserver) {
MOZ_ASSERT(aObserver);
mReportingObservers.RemoveElement(aObserver);
}
void nsPIDOMWindowInner::BroadcastReport(Report* aReport) {
MOZ_ASSERT(aReport);
for (ReportingObserver* observer : mReportingObservers) {
observer->MaybeReport(aReport);
}
if (NS_WARN_IF(!mReportRecords.AppendElement(aReport, fallible))) {
return;
}
while (mReportRecords.Length() > MAX_REPORT_RECORDS) {
mReportRecords.RemoveElementAt(0);
}
}
void nsPIDOMWindowInner::NotifyReportingObservers() {
nsTArray<RefPtr<ReportingObserver>> reportingObservers(mReportingObservers);
for (RefPtr<ReportingObserver>& observer : reportingObservers) {
observer->MaybeNotify();
}
}
nsPIDOMWindowInner::~nsPIDOMWindowInner() {}
#undef FORWARD_TO_OUTER
#undef FORWARD_TO_OUTER_OR_THROW
#undef FORWARD_TO_OUTER_VOID
