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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/base/nsGlobalWindow.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/base/nsGlobalWindow.cpp')
-rw-r--r--dom/base/nsGlobalWindow.cpp15189
1 files changed, 15189 insertions, 0 deletions
diff --git a/dom/base/nsGlobalWindow.cpp b/dom/base/nsGlobalWindow.cpp
new file mode 100644
index 000000000..8ff4b84ce
--- /dev/null
+++ b/dom/base/nsGlobalWindow.cpp
@@ -0,0 +1,15189 @@
+/* -*- 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/DOMStorage.h"
+#include "mozilla/dom/IdleRequest.h"
+#include "mozilla/dom/Performance.h"
+#include "mozilla/dom/StorageEvent.h"
+#include "mozilla/dom/StorageEventBinding.h"
+#include "mozilla/dom/Timeout.h"
+#include "mozilla/IntegerPrintfMacros.h"
+#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+#include "mozilla/dom/WindowOrientationObserver.h"
+#endif
+#include "nsDOMOfflineResourceList.h"
+#include "nsError.h"
+#include "nsIIdleService.h"
+#include "nsISizeOfEventTarget.h"
+#include "nsDOMJSUtils.h"
+#include "nsArrayUtils.h"
+#include "nsIDOMWindowCollection.h"
+#include "nsDOMWindowList.h"
+#include "mozilla/dom/WakeLock.h"
+#include "mozilla/dom/power/PowerManagerService.h"
+#include "nsIDocShellTreeOwner.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsIPermissionManager.h"
+#include "nsIScriptContext.h"
+#include "nsIScriptTimeoutHandler.h"
+#include "nsITimeoutHandler.h"
+#include "nsIController.h"
+#include "nsScriptNameSpaceManager.h"
+#include "nsISlowScriptDebug.h"
+#include "nsWindowMemoryReporter.h"
+#include "WindowNamedPropertiesHandler.h"
+#include "nsFrameSelection.h"
+#include "nsNetUtil.h"
+#include "nsVariant.h"
+#include "nsPrintfCString.h"
+
+// Helper Classes
+#include "nsJSUtils.h"
+#include "jsapi.h" // for JSAutoRequest
+#include "jswrapper.h"
+#include "nsCharSeparatedTokenizer.h"
+#include "nsReadableUtils.h"
+#include "nsDOMClassInfo.h"
+#include "nsJSEnvironment.h"
+#include "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/workers/Workers.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/ProcessHangMonitor.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"
+
+// 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 "nsIDocCharset.h"
+#include "nsIDocument.h"
+#include "Crypto.h"
+#include "nsIDOMDocument.h"
+#include "nsIDOMElement.h"
+#include "nsIDOMEvent.h"
+#include "nsIDOMOfflineResourceList.h"
+#include "nsDOMString.h"
+#include "nsIEmbeddingSiteWindow.h"
+#include "nsThreadUtils.h"
+#include "nsILoadContext.h"
+#include "nsIPresShell.h"
+#include "nsIScrollableFrame.h"
+#include "nsView.h"
+#include "nsViewManager.h"
+#include "nsISelectionController.h"
+#include "nsISelection.h"
+#include "nsIPrompt.h"
+#include "nsIPromptService.h"
+#include "nsIPromptFactory.h"
+#include "nsIWritablePropertyBag2.h"
+#include "nsIWebNavigation.h"
+#include "nsIWebBrowserChrome.h"
+#include "nsIWebBrowserFind.h" // For window.find()
+#include "nsIWindowMediator.h" // For window.find()
+#include "nsComputedDOMStyle.h"
+#include "nsDOMCID.h"
+#include "nsDOMWindowUtils.h"
+#include "nsIWindowWatcher.h"
+#include "nsPIWindowWatcher.h"
+#include "nsIContentViewer.h"
+#include "nsIScriptError.h"
+#include "nsIControllers.h"
+#include "nsIControllerContext.h"
+#include "nsGlobalWindowCommands.h"
+#include "nsQueryObject.h"
+#include "nsContentUtils.h"
+#include "nsCSSProps.h"
+#include "nsIDOMFileList.h"
+#include "nsIURIFixup.h"
+#ifndef DEBUG
+#include "nsIAppStartup.h"
+#include "nsToolkitCompsCID.h"
+#endif
+#include "nsCDefaultURIFixup.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 "xpcprivate.h"
+
+#ifdef NS_PRINTING
+#include "nsIPrintSettings.h"
+#include "nsIPrintSettingsService.h"
+#include "nsIWebBrowserPrint.h"
+#endif
+
+#include "nsWindowRoot.h"
+#include "nsNetCID.h"
+#include "nsIArray.h"
+
+// XXX An unfortunate dependency exists here (two XUL files).
+#include "nsIDOMXULDocument.h"
+#include "nsIDOMXULCommandDispatcher.h"
+
+#include "nsBindingManager.h"
+#include "nsXBLService.h"
+
+// used for popup blocking, needs to be converted to something
+// belonging to the back-end like nsIContentPolicy
+#include "nsIPopupWindowManager.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 "prprf.h"
+
+#include "mozilla/dom/IDBFactory.h"
+#include "mozilla/dom/MessageChannel.h"
+#include "mozilla/dom/Promise.h"
+
+#ifdef MOZ_GAMEPAD
+#include "mozilla/dom/Gamepad.h"
+#include "mozilla/dom/GamepadManager.h"
+#endif
+
+#include "mozilla/dom/VRDisplay.h"
+#include "mozilla/dom/VREventObserver.h"
+
+#include "nsRefreshDriver.h"
+#include "Layers.h"
+
+#include "mozilla/AddonPathService.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 "TimeChangeObserver.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/MozSelfSupportBinding.h"
+#include "mozilla/dom/PopStateEvent.h"
+#include "mozilla/dom/PopupBlockedEvent.h"
+#include "mozilla/dom/PrimitiveConversions.h"
+#include "mozilla/dom/WindowBinding.h"
+#include "nsITabChild.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/ServiceWorkerRegistration.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
+
+#ifdef MOZ_B2G
+#include "nsPISocketTransportService.h"
+#endif
+
+// 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
+
+static const char kStorageEnabled[] = "dom.storage.enabled";
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::dom::ipc;
+using mozilla::BasePrincipal;
+using mozilla::PrincipalOriginAttributes;
+using mozilla::TimeStamp;
+using mozilla::TimeDuration;
+using mozilla::dom::cache::CacheStorage;
+
+static LazyLogModule gDOMLeakPRLog("DOMLeak");
+
+nsGlobalWindow::WindowByIdTable *nsGlobalWindow::sWindowsById = nullptr;
+bool nsGlobalWindow::sWarnedAboutWindowInternal = false;
+bool nsGlobalWindow::sIdleObserversAPIFuzzTimeDisabled = false;
+
+static int32_t gRefCnt = 0;
+static int32_t gOpenPopupSpamCount = 0;
+static PopupControlState gPopupControlState = openAbused;
+static int32_t gRunningTimeoutDepth = 0;
+static bool gMouseDown = false;
+static bool gDragServiceDisabled = false;
+static FILE *gDumpFile = nullptr;
+static uint32_t gSerialCounter = 0;
+static TimeStamp gLastRecordedRecentTimeouts;
+#define STATISTICS_INTERVAL (30 * PR_MSEC_PER_SEC)
+
+#ifdef DEBUG_jst
+int32_t gTimeoutCnt = 0;
+#endif
+
+#if defined(DEBUG_bryner) || defined(DEBUG_chb)
+#define DEBUG_PAGE_CACHE
+#endif
+
+#define DOM_TOUCH_LISTENER_ADDED "dom-touch-listener-added"
+
+// The default shortest interval/timeout we permit
+#define DEFAULT_MIN_TIMEOUT_VALUE 4 // 4ms
+#define DEFAULT_MIN_BACKGROUND_TIMEOUT_VALUE 1000 // 1000ms
+static int32_t gMinTimeoutValue;
+static int32_t gMinBackgroundTimeoutValue;
+inline int32_t
+nsGlobalWindow::DOMMinTimeoutValue() const {
+ // First apply any back pressure delay that might be in effect.
+ int32_t value = std::max(mBackPressureDelayMS, 0);
+ // Don't use the background timeout value when there are audio contexts
+ // present, so that baackground audio can keep running smoothly. (bug 1181073)
+ bool isBackground = mAudioContexts.IsEmpty() &&
+ (!mOuterWindow || mOuterWindow->IsBackground());
+ return
+ std::max(isBackground ? gMinBackgroundTimeoutValue : gMinTimeoutValue, value);
+}
+
+// The number of nested timeouts before we start clamping. HTML5 says 1, WebKit
+// uses 5.
+#define DOM_CLAMP_TIMEOUT_NESTING_LEVEL 5
+
+// The longest interval (as PRIntervalTime) we permit, or that our
+// timer code can handle, really. See DELAY_INTERVAL_LIMIT in
+// nsTimerImpl.h for details.
+#define DOM_MAX_TIMEOUT_VALUE DELAY_INTERVAL_LIMIT
+
+// The interval at which we execute idle callbacks
+static uint32_t gThrottledIdlePeriodLength;
+
+#define DEFAULT_THROTTLED_IDLE_PERIOD_LENGTH 10000
+
+#define FORWARD_TO_OUTER(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsInnerWindow()) { \
+ nsGlobalWindow *outer = GetOuterWindowInternal(); \
+ if (!AsInner()->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
+
+#define FORWARD_TO_OUTER_OR_THROW(method, args, errorresult, err_rval) \
+ PR_BEGIN_MACRO \
+ MOZ_RELEASE_ASSERT(IsInnerWindow()); \
+ nsGlobalWindow *outer = GetOuterWindowInternal(); \
+ if (MOZ_LIKELY(AsInner()->HasActiveDocument())) { \
+ return outer->method args; \
+ } \
+ if (!outer) { \
+ NS_WARNING("No outer window available!"); \
+ errorresult.Throw(NS_ERROR_NOT_INITIALIZED); \
+ } else { \
+ errorresult.Throw(NS_ERROR_XPC_SECURITY_MANAGER_VETO); \
+ } \
+ return err_rval; \
+ PR_END_MACRO
+
+#define FORWARD_TO_OUTER_VOID(method, args) \
+ PR_BEGIN_MACRO \
+ if (IsInnerWindow()) { \
+ nsGlobalWindow *outer = GetOuterWindowInternal(); \
+ if (!AsInner()->HasActiveDocument()) { \
+ NS_WARNING(outer ? \
+ "Inner window does not have active document." : \
+ "No outer window available!"); \
+ return; \
+ } \
+ outer->method args; \
+ return; \
+ } \
+ PR_END_MACRO
+
+#define FORWARD_TO_OUTER_CHROME(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsInnerWindow()) { \
+ nsGlobalWindow *outer = GetOuterWindowInternal(); \
+ if (!AsInner()->HasActiveDocument()) { \
+ NS_WARNING(outer ? \
+ "Inner window does not have active document." : \
+ "No outer window available!"); \
+ return err_rval; \
+ } \
+ return ((nsGlobalChromeWindow *)outer)->method args; \
+ } \
+ PR_END_MACRO
+
+#define FORWARD_TO_INNER_CHROME(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsOuterWindow()) { \
+ if (!mInnerWindow) { \
+ NS_WARNING("No inner window available!"); \
+ return err_rval; \
+ } \
+ return ((nsGlobalChromeWindow *)nsGlobalWindow::Cast(mInnerWindow))->method args; \
+ } \
+ PR_END_MACRO
+
+#define FORWARD_TO_OUTER_MODAL_CONTENT_WINDOW(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsInnerWindow()) { \
+ nsGlobalWindow *outer = GetOuterWindowInternal(); \
+ if (!AsInner()->HasActiveDocument()) { \
+ NS_WARNING(outer ? \
+ "Inner window does not have active document." : \
+ "No outer window available!"); \
+ return err_rval; \
+ } \
+ return ((nsGlobalModalWindow *)outer)->method args; \
+ } \
+ PR_END_MACRO
+
+#define FORWARD_TO_INNER(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsOuterWindow()) { \
+ if (!mInnerWindow) { \
+ NS_WARNING("No inner window available!"); \
+ return err_rval; \
+ } \
+ return GetCurrentInnerWindowInternal()->method args; \
+ } \
+ PR_END_MACRO
+
+#define FORWARD_TO_INNER_MODAL_CONTENT_WINDOW(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsOuterWindow()) { \
+ if (!mInnerWindow) { \
+ NS_WARNING("No inner window available!"); \
+ return err_rval; \
+ } \
+ return ((nsGlobalModalWindow*)GetCurrentInnerWindowInternal())->method args; \
+ } \
+ PR_END_MACRO
+
+#define FORWARD_TO_INNER_VOID(method, args) \
+ PR_BEGIN_MACRO \
+ if (IsOuterWindow()) { \
+ if (!mInnerWindow) { \
+ NS_WARNING("No inner window available!"); \
+ return; \
+ } \
+ GetCurrentInnerWindowInternal()->method args; \
+ return; \
+ } \
+ PR_END_MACRO
+
+// Same as FORWARD_TO_INNER, but this will create a fresh inner if an
+// inner doesn't already exists.
+#define FORWARD_TO_INNER_CREATE(method, args, err_rval) \
+ PR_BEGIN_MACRO \
+ if (IsOuterWindow()) { \
+ if (!mInnerWindow) { \
+ if (mIsClosed) { \
+ return err_rval; \
+ } \
+ nsCOMPtr<nsIDocument> kungFuDeathGrip = GetDoc(); \
+ ::mozilla::Unused << kungFuDeathGrip; \
+ if (!mInnerWindow) { \
+ return err_rval; \
+ } \
+ } \
+ return GetCurrentInnerWindowInternal()->method args; \
+ } \
+ PR_END_MACRO
+
+// CIDs
+static NS_DEFINE_CID(kXULControllersCID, NS_XULCONTROLLERS_CID);
+
+#define NETWORK_UPLOAD_EVENT_NAME NS_LITERAL_STRING("moznetworkupload")
+#define NETWORK_DOWNLOAD_EVENT_NAME NS_LITERAL_STRING("moznetworkdownload")
+
+/**
+ * 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:
+ explicit nsGlobalWindowObserver(nsGlobalWindow* 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;
+ }
+
+private:
+ ~nsGlobalWindowObserver() {}
+
+ // This reference is non-owning and safe because it's cleared by
+ // nsGlobalWindow::CleanUp().
+ nsGlobalWindow* MOZ_NON_OWNING_REF mWindow;
+};
+
+NS_IMPL_ISUPPORTS(nsGlobalWindowObserver, nsIObserver, nsIInterfaceRequestor)
+
+static already_AddRefed<nsIVariant>
+CreateVoidVariant()
+{
+ RefPtr<nsVariantCC> writable = new nsVariantCC();
+ writable->SetAsVoid();
+ return writable.forget();
+}
+
+nsresult
+DialogValueHolder::Get(nsIPrincipal* aSubject, nsIVariant** aResult)
+{
+ nsCOMPtr<nsIVariant> result;
+ if (aSubject->SubsumesConsideringDomain(mOrigin)) {
+ result = mValue;
+ } else {
+ result = CreateVoidVariant();
+ }
+ result.forget(aResult);
+ return NS_OK;
+}
+
+void
+DialogValueHolder::Get(JSContext* aCx, JS::Handle<JSObject*> aScope,
+ nsIPrincipal* aSubject,
+ JS::MutableHandle<JS::Value> aResult,
+ mozilla::ErrorResult& aError)
+{
+ if (aSubject->Subsumes(mOrigin)) {
+ aError = nsContentUtils::XPConnect()->VariantToJS(aCx, aScope,
+ mValue, aResult);
+ } else {
+ aResult.setUndefined();
+ }
+}
+
+void
+nsGlobalWindow::PostThrottledIdleCallback()
+{
+ AssertIsOnMainThread();
+
+ if (mThrottledIdleRequestCallbacks.isEmpty())
+ return;
+
+ RefPtr<IdleRequest> request(mThrottledIdleRequestCallbacks.popFirst());
+ // ownership transferred from mThrottledIdleRequestCallbacks to
+ // mIdleRequestCallbacks
+ mIdleRequestCallbacks.insertBack(request);
+ NS_IdleDispatchToCurrentThread(request.forget());
+}
+
+/* static */ void
+nsGlobalWindow::InsertIdleCallbackIntoList(IdleRequest* aRequest,
+ IdleRequests& aList)
+{
+ aList.insertBack(aRequest);
+ aRequest->AddRef();
+}
+
+uint32_t
+nsGlobalWindow::RequestIdleCallback(JSContext* aCx,
+ IdleRequestCallback& aCallback,
+ const IdleRequestOptions& aOptions,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+ AssertIsOnMainThread();
+
+ uint32_t handle = ++mIdleRequestCallbackCounter;
+
+ RefPtr<IdleRequest> request =
+ new IdleRequest(aCx, AsInner(), aCallback, handle);
+
+ if (aOptions.mTimeout.WasPassed()) {
+ aError = request->SetTimeout(aOptions.mTimeout.Value());
+ if (NS_WARN_IF(aError.Failed())) {
+ return 0;
+ }
+ }
+
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (outer && outer->AsOuter()->IsBackground()) {
+ // mThrottledIdleRequestCallbacks now owns request
+ InsertIdleCallbackIntoList(request, mThrottledIdleRequestCallbacks);
+
+ NS_DelayedDispatchToCurrentThread(
+ NewRunnableMethod(this, &nsGlobalWindow::PostThrottledIdleCallback),
+ 10000);
+ } else {
+ MOZ_ASSERT(mThrottledIdleRequestCallbacks.isEmpty());
+
+ // mIdleRequestCallbacks now owns request
+ InsertIdleCallbackIntoList(request, mIdleRequestCallbacks);
+
+ NS_IdleDispatchToCurrentThread(request.forget());
+ }
+
+ return handle;
+}
+
+void
+nsGlobalWindow::CancelIdleCallback(uint32_t aHandle)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ for (IdleRequest* r : mIdleRequestCallbacks) {
+ if (r->Handle() == aHandle) {
+ r->Cancel();
+ break;
+ }
+ }
+}
+
+void
+nsGlobalWindow::DisableIdleCallbackRequests()
+{
+ while (!mIdleRequestCallbacks.isEmpty()) {
+ RefPtr<IdleRequest> request = mIdleRequestCallbacks.popFirst();
+ request->Cancel();
+ }
+
+ while (!mThrottledIdleRequestCallbacks.isEmpty()) {
+ RefPtr<IdleRequest> request = mThrottledIdleRequestCallbacks.popFirst();
+ request->Cancel();
+ }
+}
+
+void nsGlobalWindow::UnthrottleIdleCallbackRequests()
+{
+ AssertIsOnMainThread();
+
+ while (!mThrottledIdleRequestCallbacks.isEmpty()) {
+ RefPtr<IdleRequest> request(mThrottledIdleRequestCallbacks.popFirst());
+ mIdleRequestCallbacks.insertBack(request);
+ NS_IdleDispatchToCurrentThread(request.forget());
+ }
+}
+
+
+namespace mozilla {
+namespace dom {
+extern uint64_t
+NextWindowID();
+} // namespace dom
+} // namespace mozilla
+
+template<class T>
+nsPIDOMWindow<T>::nsPIDOMWindow(nsPIDOMWindowOuter *aOuterWindow)
+: mFrameElement(nullptr), mDocShell(nullptr), mModalStateDepth(0),
+ mRunningTimeout(nullptr), mMutationBits(0), mIsDocumentLoaded(false),
+ mIsHandlingResizeEvent(false), mIsInnerWindow(aOuterWindow != nullptr),
+ mMayHavePaintEventListener(false), mMayHaveTouchEventListener(false),
+ mMayHaveMouseEnterLeaveEventListener(false),
+ mMayHavePointerEnterLeaveEventListener(false),
+ mInnerObjectsFreed(false),
+ mIsModalContentWindow(false),
+ mIsActive(false), mIsBackground(false),
+ mMediaSuspend(Preferences::GetBool("media.block-autoplay-until-in-foreground", true) ?
+ nsISuspendedTypes::SUSPENDED_BLOCK : nsISuspendedTypes::NONE_SUSPENDED),
+ mAudioMuted(false), mAudioVolume(1.0), mAudioCaptured(false),
+ mDesktopModeViewport(false), mIsRootOuterWindow(false), mInnerWindow(nullptr),
+ mOuterWindow(aOuterWindow),
+ // Make sure no actual window ends up with mWindowID == 0
+ mWindowID(NextWindowID()), mHasNotifiedGlobalCreated(false),
+ mMarkedCCGeneration(0), mServiceWorkersTestingEnabled(false)
+ {}
+
+template<class T>
+nsPIDOMWindow<T>::~nsPIDOMWindow() {}
+
+/* static */
+nsPIDOMWindowOuter*
+nsPIDOMWindowOuter::GetFromCurrentInner(nsPIDOMWindowInner* aInner)
+{
+ if (!aInner) {
+ return nullptr;
+ }
+
+ nsPIDOMWindowOuter* outer = aInner->GetOuterWindow();
+ if (!outer || outer->GetCurrentInnerWindow() != aInner) {
+ return nullptr;
+ }
+
+ return outer;
+}
+
+// DialogValueHolder CC goop.
+NS_IMPL_CYCLE_COLLECTION(DialogValueHolder, mValue)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DialogValueHolder)
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(DialogValueHolder)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(DialogValueHolder)
+
+//*****************************************************************************
+// nsOuterWindowProxy: Outer Window Proxy
+//*****************************************************************************
+
+class nsOuterWindowProxy : public js::Wrapper
+{
+public:
+ constexpr nsOuterWindowProxy() : js::Wrapper(0) { }
+
+ virtual bool finalizeInBackground(const JS::Value& priv) const override {
+ return false;
+ }
+
+ // Standard internal methods
+ virtual bool getOwnPropertyDescriptor(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::PropertyDescriptor> desc)
+ const override;
+ virtual bool defineProperty(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::Handle<JS::PropertyDescriptor> desc,
+ JS::ObjectOpResult &result) const override;
+ virtual bool ownPropertyKeys(JSContext *cx,
+ JS::Handle<JSObject*> proxy,
+ JS::AutoIdVector &props) const override;
+ virtual bool delete_(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::ObjectOpResult &result) const override;
+
+ virtual bool getPrototypeIfOrdinary(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ bool* isOrdinary,
+ JS::MutableHandle<JSObject*> protop) const override;
+
+ virtual bool enumerate(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::MutableHandle<JSObject*> vp) const override;
+ virtual bool preventExtensions(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::ObjectOpResult& result) const override;
+ virtual bool isExtensible(JSContext *cx, JS::Handle<JSObject*> proxy, bool *extensible)
+ const override;
+ virtual bool has(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, bool *bp) const override;
+ virtual bool get(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<JS::Value> receiver,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::Value> vp) const override;
+ virtual bool set(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, JS::Handle<JS::Value> v,
+ JS::Handle<JS::Value> receiver,
+ JS::ObjectOpResult &result) const override;
+
+ // SpiderMonkey extensions
+ virtual bool getPropertyDescriptor(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::PropertyDescriptor> desc)
+ const override;
+ virtual bool hasOwn(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, bool *bp) const override;
+ virtual bool getOwnEnumerablePropertyKeys(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::AutoIdVector &props) const override;
+ virtual const char *className(JSContext *cx,
+ JS::Handle<JSObject*> wrapper) const override;
+
+ virtual void finalize(JSFreeOp *fop, JSObject *proxy) const override;
+
+ virtual bool isCallable(JSObject *obj) const override {
+ return false;
+ }
+ virtual bool isConstructor(JSObject *obj) const override {
+ return false;
+ }
+
+ virtual bool watch(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, JS::Handle<JSObject*> callable) const override;
+ virtual bool unwatch(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id) const override;
+
+ static void ObjectMoved(JSObject *obj, const JSObject *old);
+
+ static const nsOuterWindowProxy singleton;
+
+protected:
+ static nsGlobalWindow* GetOuterWindow(JSObject *proxy)
+ {
+ nsGlobalWindow* outerWindow = nsGlobalWindow::FromSupports(
+ static_cast<nsISupports*>(js::GetProxyExtra(proxy, 0).toPrivate()));
+ MOZ_ASSERT_IF(outerWindow, outerWindow->IsOuterWindow());
+ return outerWindow;
+ }
+
+ // False return value means we threw an exception. True return value
+ // but false "found" means we didn't have a subframe at that index.
+ bool GetSubframeWindow(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::Value> vp,
+ bool &found) const;
+
+ // Returns a non-null window only if id is an index and we have a
+ // window at that index.
+ already_AddRefed<nsPIDOMWindowOuter>
+ GetSubframeWindow(JSContext *cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id) const;
+
+ bool AppendIndexedPropertyNames(JSContext *cx, JSObject *proxy,
+ JS::AutoIdVector &props) const;
+};
+
+static const js::ClassExtension OuterWindowProxyClassExtension = PROXY_MAKE_EXT(
+ nsOuterWindowProxy::ObjectMoved
+);
+
+const js::Class OuterWindowProxyClass = PROXY_CLASS_WITH_EXT(
+ "Proxy",
+ 0, /* additional class flags */
+ &OuterWindowProxyClassExtension);
+
+const char *
+nsOuterWindowProxy::className(JSContext *cx, JS::Handle<JSObject*> proxy) const
+{
+ MOZ_ASSERT(js::IsProxy(proxy));
+
+ return "Window";
+}
+
+void
+nsOuterWindowProxy::finalize(JSFreeOp *fop, JSObject *proxy) const
+{
+ nsGlobalWindow* outerWindow = GetOuterWindow(proxy);
+ if (outerWindow) {
+ outerWindow->ClearWrapper();
+
+ // Ideally we would use OnFinalize here, but it's possible that
+ // EnsureScriptEnvironment will later be called on the window, and we don't
+ // want to create a new script object in that case. Therefore, we need to
+ // write a non-null value that will reliably crash when dereferenced.
+ outerWindow->PoisonOuterWindowProxy(proxy);
+ }
+}
+
+bool
+nsOuterWindowProxy::getPropertyDescriptor(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::PropertyDescriptor> desc) const
+{
+ // The only thing we can do differently from js::Wrapper is shadow stuff with
+ // our indexed properties, so we can just try getOwnPropertyDescriptor and if
+ // that gives us nothing call on through to js::Wrapper.
+ desc.object().set(nullptr);
+ if (!getOwnPropertyDescriptor(cx, proxy, id, desc)) {
+ return false;
+ }
+
+ if (desc.object()) {
+ return true;
+ }
+
+ return js::Wrapper::getPropertyDescriptor(cx, proxy, id, desc);
+}
+
+bool
+nsOuterWindowProxy::getOwnPropertyDescriptor(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::PropertyDescriptor> desc)
+ const
+{
+ bool found;
+ if (!GetSubframeWindow(cx, proxy, id, desc.value(), found)) {
+ return false;
+ }
+ if (found) {
+ FillPropertyDescriptor(desc, proxy, true);
+ return true;
+ }
+ // else fall through to js::Wrapper
+
+ // When we change this to always claim the property is configurable (bug
+ // 1178639), update the comments in nsOuterWindowProxy::defineProperty
+ // accordingly.
+ return js::Wrapper::getOwnPropertyDescriptor(cx, proxy, id, desc);
+}
+
+bool
+nsOuterWindowProxy::defineProperty(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::Handle<JS::PropertyDescriptor> desc,
+ JS::ObjectOpResult &result) const
+{
+ if (IsArrayIndex(GetArrayIndexFromId(cx, id))) {
+ // Spec says to Reject whether this is a supported index or not,
+ // since we have no indexed setter or indexed creator. It is up
+ // to the caller to decide whether to throw a TypeError.
+ return result.failCantDefineWindowElement();
+ }
+
+#ifndef RELEASE_OR_BETA // To be turned on in bug 1178638.
+ // For now, allow chrome code to define non-configurable properties
+ // on windows, until we sort out what exactly the addon SDK is
+ // doing. In the meantime, this still allows us to test web compat
+ // behavior.
+ if (desc.hasConfigurable() && !desc.configurable() &&
+ !nsContentUtils::IsCallerChrome()) {
+ return ThrowErrorMessage(cx, MSG_DEFINE_NON_CONFIGURABLE_PROP_ON_WINDOW);
+ }
+
+ // Note that if hasConfigurable() is false we do NOT want to
+ // setConfigurable(true). That would make this code:
+ //
+ // var x;
+ // window.x = 5;
+ //
+ // fail, because the JS engine ends up converting the assignment into a define
+ // with !hasConfigurable(), but the var actually declared a non-configurable
+ // property on our underlying Window object, so the set would fail if we
+ // forced setConfigurable(true) here. What we want to do instead is change
+ // getOwnPropertyDescriptor to always claim configurable. See bug 1178639.
+#endif
+
+ return js::Wrapper::defineProperty(cx, proxy, id, desc, result);
+}
+
+bool
+nsOuterWindowProxy::ownPropertyKeys(JSContext *cx,
+ JS::Handle<JSObject*> proxy,
+ JS::AutoIdVector &props) const
+{
+ // Just our indexed stuff followed by our "normal" own property names.
+ if (!AppendIndexedPropertyNames(cx, proxy, props)) {
+ return false;
+ }
+
+ JS::AutoIdVector innerProps(cx);
+ if (!js::Wrapper::ownPropertyKeys(cx, proxy, innerProps)) {
+ return false;
+ }
+ return js::AppendUnique(cx, props, innerProps);
+}
+
+bool
+nsOuterWindowProxy::delete_(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, JS::ObjectOpResult &result) const
+{
+ if (nsCOMPtr<nsPIDOMWindowOuter> frame = GetSubframeWindow(cx, proxy, id)) {
+ // Fail (which means throw if strict, else return false).
+ return result.failCantDeleteWindowElement();
+ }
+
+ if (IsArrayIndex(GetArrayIndexFromId(cx, id))) {
+ // Indexed, but not supported. Spec says return true.
+ return result.succeed();
+ }
+
+ return js::Wrapper::delete_(cx, proxy, id, result);
+}
+
+bool
+nsOuterWindowProxy::getPrototypeIfOrdinary(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ bool* isOrdinary,
+ JS::MutableHandle<JSObject*> protop) const
+{
+ // Window's [[GetPrototypeOf]] trap isn't the ordinary definition:
+ //
+ // https://html.spec.whatwg.org/multipage/browsers.html#windowproxy-getprototypeof
+ //
+ // We nonetheless can implement it with a static [[Prototype]], because
+ // wrapper-class handlers (particularly, XOW in FilteringWrapper.cpp) supply
+ // all non-ordinary behavior.
+ //
+ // But from a spec point of view, it's the exact same object in both cases --
+ // only the observer's changed. So this getPrototypeIfOrdinary trap on the
+ // non-wrapper object *must* report non-ordinary, even if static [[Prototype]]
+ // usually means ordinary.
+ *isOrdinary = false;
+ return true;
+}
+
+bool
+nsOuterWindowProxy::preventExtensions(JSContext* cx,
+ JS::Handle<JSObject*> proxy,
+ JS::ObjectOpResult& result) const
+{
+ // If [[Extensible]] could be false, then navigating a window could navigate
+ // to a window that's [[Extensible]] after being at one that wasn't: an
+ // invariant violation. So never change a window's extensibility.
+ return result.failCantPreventExtensions();
+}
+
+bool
+nsOuterWindowProxy::isExtensible(JSContext *cx, JS::Handle<JSObject*> proxy,
+ bool *extensible) const
+{
+ // See above.
+ *extensible = true;
+ return true;
+}
+
+bool
+nsOuterWindowProxy::has(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, bool *bp) const
+{
+ if (nsCOMPtr<nsPIDOMWindowOuter> frame = GetSubframeWindow(cx, proxy, id)) {
+ *bp = true;
+ return true;
+ }
+
+ return js::Wrapper::has(cx, proxy, id, bp);
+}
+
+bool
+nsOuterWindowProxy::hasOwn(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, bool *bp) const
+{
+ if (nsCOMPtr<nsPIDOMWindowOuter> frame = GetSubframeWindow(cx, proxy, id)) {
+ *bp = true;
+ return true;
+ }
+
+ return js::Wrapper::hasOwn(cx, proxy, id, bp);
+}
+
+bool
+nsOuterWindowProxy::get(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<JS::Value> receiver,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::Value> vp) const
+{
+ if (id == nsDOMClassInfo::sWrappedJSObject_id &&
+ xpc::AccessCheck::isChrome(js::GetContextCompartment(cx))) {
+ vp.set(JS::ObjectValue(*proxy));
+ return true;
+ }
+
+ bool found;
+ if (!GetSubframeWindow(cx, proxy, id, vp, found)) {
+ return false;
+ }
+ if (found) {
+ return true;
+ }
+ // Else fall through to js::Wrapper
+
+ return js::Wrapper::get(cx, proxy, receiver, id, vp);
+}
+
+bool
+nsOuterWindowProxy::set(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::Handle<JS::Value> v,
+ JS::Handle<JS::Value> receiver,
+ JS::ObjectOpResult &result) const
+{
+ if (IsArrayIndex(GetArrayIndexFromId(cx, id))) {
+ // Reject the set. It's up to the caller to decide whether to throw a
+ // TypeError. If the caller is strict mode JS code, it'll throw.
+ return result.failReadOnly();
+ }
+
+ return js::Wrapper::set(cx, proxy, id, v, receiver, result);
+}
+
+bool
+nsOuterWindowProxy::getOwnEnumerablePropertyKeys(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::AutoIdVector &props) const
+{
+ // BaseProxyHandler::keys seems to do what we want here: call
+ // ownPropertyKeys and then filter out the non-enumerable properties.
+ return js::BaseProxyHandler::getOwnEnumerablePropertyKeys(cx, proxy, props);
+}
+
+bool
+nsOuterWindowProxy::enumerate(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::MutableHandle<JSObject*> objp) const
+{
+ // BaseProxyHandler::enumerate seems to do what we want here: fall
+ // back on the property names returned from js::GetPropertyKeys()
+ return js::BaseProxyHandler::enumerate(cx, proxy, objp);
+}
+
+bool
+nsOuterWindowProxy::GetSubframeWindow(JSContext *cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id,
+ JS::MutableHandle<JS::Value> vp,
+ bool& found) const
+{
+ nsCOMPtr<nsPIDOMWindowOuter> frame = GetSubframeWindow(cx, proxy, id);
+ if (!frame) {
+ found = false;
+ return true;
+ }
+
+ found = true;
+ // Just return the window's global
+ nsGlobalWindow* global = nsGlobalWindow::Cast(frame);
+ frame->EnsureInnerWindow();
+ JSObject* obj = global->FastGetGlobalJSObject();
+ // This null check fixes a hard-to-reproduce crash that occurs when we
+ // get here when we're mid-call to nsDocShell::Destroy. See bug 640904
+ // comment 105.
+ if (MOZ_UNLIKELY(!obj)) {
+ return xpc::Throw(cx, NS_ERROR_FAILURE);
+ }
+ JS::ExposeObjectToActiveJS(obj);
+ vp.setObject(*obj);
+ return JS_WrapValue(cx, vp);
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsOuterWindowProxy::GetSubframeWindow(JSContext *cx,
+ JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id) const
+{
+ uint32_t index = GetArrayIndexFromId(cx, id);
+ if (!IsArrayIndex(index)) {
+ return nullptr;
+ }
+
+ nsGlobalWindow* win = GetOuterWindow(proxy);
+ MOZ_ASSERT(win->IsOuterWindow());
+ return win->IndexedGetterOuter(index);
+}
+
+bool
+nsOuterWindowProxy::AppendIndexedPropertyNames(JSContext *cx, JSObject *proxy,
+ JS::AutoIdVector &props) const
+{
+ uint32_t length = GetOuterWindow(proxy)->Length();
+ MOZ_ASSERT(int32_t(length) >= 0);
+ if (!props.reserve(props.length() + length)) {
+ return false;
+ }
+ for (int32_t i = 0; i < int32_t(length); ++i) {
+ if (!props.append(INT_TO_JSID(i))) {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+bool
+nsOuterWindowProxy::watch(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id, JS::Handle<JSObject*> callable) const
+{
+ return js::WatchGuts(cx, proxy, id, callable);
+}
+
+bool
+nsOuterWindowProxy::unwatch(JSContext *cx, JS::Handle<JSObject*> proxy,
+ JS::Handle<jsid> id) const
+{
+ return js::UnwatchGuts(cx, proxy, id);
+}
+
+void
+nsOuterWindowProxy::ObjectMoved(JSObject *obj, const JSObject *old)
+{
+ nsGlobalWindow* outerWindow = GetOuterWindow(obj);
+ if (outerWindow) {
+ outerWindow->UpdateWrapper(obj, old);
+ }
+}
+
+const nsOuterWindowProxy
+nsOuterWindowProxy::singleton;
+
+class nsChromeOuterWindowProxy : public nsOuterWindowProxy
+{
+public:
+ constexpr nsChromeOuterWindowProxy() : nsOuterWindowProxy() { }
+
+ virtual const char *className(JSContext *cx, JS::Handle<JSObject*> wrapper) const override;
+
+ static const nsChromeOuterWindowProxy singleton;
+};
+
+const char *
+nsChromeOuterWindowProxy::className(JSContext *cx,
+ JS::Handle<JSObject*> proxy) const
+{
+ MOZ_ASSERT(js::IsProxy(proxy));
+
+ return "ChromeWindow";
+}
+
+const nsChromeOuterWindowProxy
+nsChromeOuterWindowProxy::singleton;
+
+static JSObject*
+NewOuterWindowProxy(JSContext *cx, JS::Handle<JSObject*> global, bool isChrome)
+{
+ JSAutoCompartment ac(cx, global);
+ MOZ_ASSERT(js::GetGlobalForObjectCrossCompartment(global) == global);
+
+ js::WrapperOptions options;
+ options.setClass(&OuterWindowProxyClass);
+ options.setSingleton(true);
+ JSObject *obj = js::Wrapper::New(cx, global,
+ isChrome ? &nsChromeOuterWindowProxy::singleton
+ : &nsOuterWindowProxy::singleton,
+ options);
+ MOZ_ASSERT_IF(obj, js::IsWindowProxy(obj));
+ return obj;
+}
+
+namespace {
+
+// The maximum number of timer callbacks we will try to run in a single event
+// loop runnable.
+#define DEFAULT_TARGET_MAX_CONSECUTIVE_CALLBACKS 5
+uint32_t gTargetMaxConsecutiveCallbacks;
+
+// The number of queued runnables within the TabGroup ThrottledEventQueue
+// at which to begin applying back pressure to the window.
+#define DEFAULT_THROTTLED_EVENT_QUEUE_BACK_PRESSURE 5000
+static uint32_t gThrottledEventQueueBackPressure;
+
+// The amount of delay to apply to timers when back pressure is triggered.
+// As the length of the ThrottledEventQueue grows delay is increased. The
+// delay is scaled such that every kThrottledEventQueueBackPressure runnables
+// in the queue equates to an additional kBackPressureDelayMS.
+#define DEFAULT_BACK_PRESSURE_DELAY_MS 250
+static uint32_t gBackPressureDelayMS;
+
+// This defines a limit for how much the delay must drop before we actually
+// reduce back pressure throttle amount. This makes the throttle delay
+// a bit "sticky" once we enter back pressure.
+#define DEFAULT_BACK_PRESSURE_DELAY_REDUCTION_THRESHOLD_MS 1000
+static uint32_t gBackPressureDelayReductionThresholdMS;
+
+// The minimum delay we can reduce back pressure to before we just floor
+// the value back to zero. This allows us to ensure that we can exit
+// back pressure event if there are always a small number of runnables
+// queued up.
+#define DEFAULT_BACK_PRESSURE_DELAY_MINIMUM_MS 100
+static uint32_t gBackPressureDelayMinimumMS;
+
+} // anonymous namespace
+
+//*****************************************************************************
+//*** nsGlobalWindow: Object Management
+//*****************************************************************************
+
+nsGlobalWindow::nsGlobalWindow(nsGlobalWindow *aOuterWindow)
+ : nsPIDOMWindow<nsISupports>(aOuterWindow ? aOuterWindow->AsOuter() : nullptr),
+ mIdleFuzzFactor(0),
+ mIdleCallbackIndex(-1),
+ mCurrentlyIdle(false),
+ mAddActiveEventFuzzTime(true),
+ mFullScreen(false),
+ mFullscreenMode(false),
+ mIsClosed(false),
+ mInClose(false),
+ mHavePendingClose(false),
+ mHadOriginalOpener(false),
+ mOriginalOpenerWasSecureContext(false),
+ mIsPopupSpam(false),
+ mBlockScriptedClosingFlag(false),
+ mWasOffline(false),
+ mHasHadSlowScript(false),
+ mNotifyIdleObserversIdleOnThaw(false),
+ mNotifyIdleObserversActiveOnThaw(false),
+ mCreatingInnerWindow(false),
+ mIsChrome(false),
+ mCleanMessageManager(false),
+ mNeedsFocus(true),
+ mHasFocus(false),
+ mShowFocusRingForContent(false),
+ mFocusByKeyOccurred(false),
+ mHasGamepad(false),
+ mHasVREvents(false),
+#ifdef MOZ_GAMEPAD
+ mHasSeenGamepadInput(false),
+#endif
+ mNotifiedIDDestroyed(false),
+ mAllowScriptsToClose(false),
+ mTimeoutInsertionPoint(nullptr),
+ mTimeoutIdCounter(1),
+ mTimeoutFiringDepth(0),
+ mSuspendDepth(0),
+ mFreezeDepth(0),
+ mBackPressureDelayMS(0),
+ mFocusMethod(0),
+ mSerial(0),
+ mIdleCallbackTimeoutCounter(1),
+ mIdleRequestCallbackCounter(1),
+#ifdef DEBUG
+ mSetOpenerWindowCalled(false),
+#endif
+#ifdef MOZ_B2G
+ mNetworkUploadObserverEnabled(false),
+ mNetworkDownloadObserverEnabled(false),
+#endif
+ mCleanedUp(false),
+ mDialogAbuseCount(0),
+ mAreDialogsEnabled(true),
+#ifdef DEBUG
+ mIsValidatingTabGroup(false),
+#endif
+ mCanSkipCCGeneration(0)
+{
+ AssertIsOnMainThread();
+
+ nsLayoutStatics::AddRef();
+
+ // Initialize the PRCList (this).
+ PR_INIT_CLIST(this);
+
+ if (aOuterWindow) {
+ // |this| is an inner window, add this inner window to the outer
+ // window list of inners.
+ PR_INSERT_AFTER(this, aOuterWindow);
+
+ mObserver = new nsGlobalWindowObserver(this);
+ if (mObserver) {
+ 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);
+
+ // Watch for dom-storage2-changed so we can fire storage
+ // events. Use a strong reference.
+ os->AddObserver(mObserver, "dom-storage2-changed", false);
+ }
+
+ Preferences::AddStrongObserver(mObserver, "intl.accept_languages");
+ }
+ } else {
+ // |this| is an outer window. Outer windows start out frozen and
+ // remain frozen until they get an inner window.
+ MOZ_ASSERT(IsFrozen());
+ }
+
+ // We could have failed the first time through trying
+ // to create the entropy collector, so we should
+ // try to get one until we succeed.
+
+ gRefCnt++;
+
+ static bool sFirstTime = true;
+ if (sFirstTime) {
+ Preferences::AddIntVarCache(&gMinTimeoutValue,
+ "dom.min_timeout_value",
+ DEFAULT_MIN_TIMEOUT_VALUE);
+ Preferences::AddIntVarCache(&gMinBackgroundTimeoutValue,
+ "dom.min_background_timeout_value",
+ DEFAULT_MIN_BACKGROUND_TIMEOUT_VALUE);
+ Preferences::AddBoolVarCache(&sIdleObserversAPIFuzzTimeDisabled,
+ "dom.idle-observers-api.fuzz_time.disabled",
+ false);
+
+ Preferences::AddUintVarCache(&gThrottledIdlePeriodLength,
+ "dom.idle_period.throttled_length",
+ DEFAULT_THROTTLED_IDLE_PERIOD_LENGTH);
+
+ Preferences::AddUintVarCache(&gThrottledEventQueueBackPressure,
+ "dom.timeout.throttled_event_queue_back_pressure",
+ DEFAULT_THROTTLED_EVENT_QUEUE_BACK_PRESSURE);
+ Preferences::AddUintVarCache(&gBackPressureDelayMS,
+ "dom.timeout.back_pressure_delay_ms",
+ DEFAULT_BACK_PRESSURE_DELAY_MS);
+ Preferences::AddUintVarCache(&gBackPressureDelayReductionThresholdMS,
+ "dom.timeout.back_pressure_delay_reduction_threshold_ms",
+ DEFAULT_BACK_PRESSURE_DELAY_REDUCTION_THRESHOLD_MS);
+ Preferences::AddUintVarCache(&gBackPressureDelayMinimumMS,
+ "dom.timeout.back_pressure_delay_minimum_ms",
+ DEFAULT_BACK_PRESSURE_DELAY_MINIMUM_MS);
+
+ Preferences::AddUintVarCache(&gTargetMaxConsecutiveCallbacks,
+ "dom.timeout.max_consecutive_callbacks",
+ DEFAULT_TARGET_MAX_CONSECUTIVE_CALLBACKS);
+
+ sFirstTime = false;
+ }
+
+ if (gDumpFile == nullptr) {
+ const nsAdoptingCString& fname =
+ Preferences::GetCString("browser.dom.window.dump.file");
+ if (!fname.IsEmpty()) {
+ // if this fails to open, Dump() knows to just go to stdout
+ // on null.
+ gDumpFile = fopen(fname, "wb+");
+ } else {
+ gDumpFile = stdout;
+ }
+ }
+
+ mSerial = ++gSerialCounter;
+
+#ifdef DEBUG
+ if (!PR_GetEnv("MOZ_QUIET")) {
+ printf_stderr("++DOMWINDOW == %d (%p) [pid = %d] [serial = %d] [outer = %p]\n",
+ gRefCnt,
+ static_cast<void*>(ToCanonicalSupports(this)),
+ getpid(),
+ gSerialCounter,
+ static_cast<void*>(ToCanonicalSupports(aOuterWindow)));
+ }
+#endif
+
+ if (gDOMLeakPRLog)
+ MOZ_LOG(gDOMLeakPRLog, LogLevel::Debug,
+ ("DOMWINDOW %p created outer=%p", this, aOuterWindow));
+
+ NS_ASSERTION(sWindowsById, "Windows hash table must be created!");
+ NS_ASSERTION(!sWindowsById->Get(mWindowID),
+ "This window shouldn't be in the hash table yet!");
+ // We seem to see crashes in release builds because of null |sWindowsById|.
+ if (sWindowsById) {
+ sWindowsById->Put(mWindowID, this);
+ }
+}
+
+#ifdef DEBUG
+
+/* static */
+void
+nsGlobalWindow::AssertIsOnMainThread()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+}
+
+#endif // DEBUG
+
+/* static */
+void
+nsGlobalWindow::Init()
+{
+ AssertIsOnMainThread();
+
+ NS_ASSERTION(gDOMLeakPRLog, "gDOMLeakPRLog should have been initialized!");
+
+ sWindowsById = new WindowByIdTable();
+}
+
+nsGlobalWindow::~nsGlobalWindow()
+{
+ AssertIsOnMainThread();
+
+ DisconnectEventTargetObjects();
+
+ // We have to check if sWindowsById isn't null because ::Shutdown might have
+ // been called.
+ if (sWindowsById) {
+ NS_ASSERTION(sWindowsById->Get(mWindowID),
+ "This window should be in the hash table");
+ sWindowsById->Remove(mWindowID);
+ }
+
+ --gRefCnt;
+
+#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);
+ }
+ }
+
+ nsGlobalWindow* outer = nsGlobalWindow::Cast(mOuterWindow);
+ printf_stderr("--DOMWINDOW == %d (%p) [pid = %d] [serial = %d] [outer = %p] [url = %s]\n",
+ gRefCnt,
+ static_cast<void*>(ToCanonicalSupports(this)),
+ getpid(),
+ mSerial,
+ static_cast<void*>(ToCanonicalSupports(outer)),
+ url.get());
+ }
+#endif
+
+ if (gDOMLeakPRLog)
+ MOZ_LOG(gDOMLeakPRLog, LogLevel::Debug,
+ ("DOMWINDOW %p destroyed", this));
+
+ if (IsOuterWindow()) {
+ JSObject *proxy = GetWrapperPreserveColor();
+ if (proxy) {
+ js::SetProxyExtra(proxy, 0, js::PrivateValue(nullptr));
+ }
+
+ // An outer window is destroyed with inner windows still possibly
+ // alive, iterate through the inner windows and null out their
+ // back pointer to this outer, and pull them out of the list of
+ // inner windows.
+
+ nsGlobalWindow *w;
+ while ((w = (nsGlobalWindow *)PR_LIST_HEAD(this)) != this) {
+ PR_REMOVE_AND_INIT_LINK(w);
+ }
+
+ DropOuterWindowDocs();
+ } else {
+ Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_MUTATION_LISTENERS,
+ mMutationBits ? 1 : 0);
+
+ if (mListenerManager) {
+ mListenerManager->Disconnect();
+ mListenerManager = nullptr;
+ }
+
+ // 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.
+ nsGlobalWindow *outer = GetOuterWindowInternal();
+ if (outer) {
+ outer->MaybeClearInnerWindow(this);
+ }
+ }
+
+ // We don't have to leave the tab group if we are an inner window.
+ if (mTabGroup && IsOuterWindow()) {
+ mTabGroup->Leave(AsOuter());
+ }
+
+ // Outer windows are always supposed to call CleanUp before letting themselves
+ // be destroyed. And while CleanUp generally seems to be intended to clean up
+ // outers, we've historically called it for both. Changing this would probably
+ // involve auditing all of the references that inners and outers can have, and
+ // separating the handling into CleanUp() and FreeInnerObjects.
+ if (IsInnerWindow()) {
+ CleanUp();
+ } else {
+ MOZ_ASSERT(mCleanedUp);
+ }
+
+ nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
+ if (ac)
+ ac->RemoveWindowAsListener(this);
+
+ nsLayoutStatics::Release();
+}
+
+void
+nsGlobalWindow::AddEventTargetObject(DOMEventTargetHelper* aObject)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ mEventTargetObjects.PutEntry(aObject);
+}
+
+void
+nsGlobalWindow::RemoveEventTargetObject(DOMEventTargetHelper* aObject)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ mEventTargetObjects.RemoveEntry(aObject);
+}
+
+void
+nsGlobalWindow::DisconnectEventTargetObjects()
+{
+ for (auto iter = mEventTargetObjects.ConstIter(); !iter.Done();
+ iter.Next()) {
+ RefPtr<DOMEventTargetHelper> target = iter.Get()->GetKey();
+ target->DisconnectFromOwner();
+ }
+ mEventTargetObjects.Clear();
+}
+
+// static
+void
+nsGlobalWindow::ShutDown()
+{
+ AssertIsOnMainThread();
+
+ if (gDumpFile && gDumpFile != stdout) {
+ fclose(gDumpFile);
+ }
+ gDumpFile = nullptr;
+
+ delete sWindowsById;
+ sWindowsById = nullptr;
+}
+
+// static
+void
+nsGlobalWindow::CleanupCachedXBLHandlers(nsGlobalWindow* aWindow)
+{
+ if (aWindow->mCachedXBLPrototypeHandlers &&
+ aWindow->mCachedXBLPrototypeHandlers->Count() > 0) {
+ aWindow->mCachedXBLPrototypeHandlers->Clear();
+ }
+}
+
+void
+nsGlobalWindow::MaybeForgiveSpamCount()
+{
+ if (IsOuterWindow() &&
+ IsPopupSpamWindow()) {
+ SetIsPopupSpamWindow(false);
+ }
+}
+
+void
+nsGlobalWindow::SetIsPopupSpamWindow(bool aIsPopupSpam)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ mIsPopupSpam = aIsPopupSpam;
+ if (aIsPopupSpam) {
+ ++gOpenPopupSpamCount;
+ } else {
+ --gOpenPopupSpamCount;
+ NS_ASSERTION(gOpenPopupSpamCount >= 0,
+ "Unbalanced decrement of gOpenPopupSpamCount");
+ }
+}
+
+void
+nsGlobalWindow::DropOuterWindowDocs()
+{
+ MOZ_ASSERT(IsOuterWindow());
+ MOZ_ASSERT_IF(mDoc, !mDoc->EventHandlingSuppressed());
+ mDoc = nullptr;
+ mSuspendedDoc = nullptr;
+}
+
+void
+nsGlobalWindow::CleanUp()
+{
+ // Guarantee idempotence.
+ if (mCleanedUp)
+ return;
+ mCleanedUp = true;
+
+ StartDying();
+
+ DisconnectEventTargetObjects();
+
+ if (mObserver) {
+ nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
+ if (os) {
+ os->RemoveObserver(mObserver, NS_IOSERVICE_OFFLINE_STATUS_TOPIC);
+ os->RemoveObserver(mObserver, "dom-storage2-changed");
+ }
+
+#ifdef MOZ_B2G
+ DisableNetworkEvent(eNetworkUpload);
+ DisableNetworkEvent(eNetworkDownload);
+#endif // MOZ_B2G
+
+ if (mIdleService) {
+ mIdleService->RemoveIdleObserver(mObserver, MIN_IDLE_NOTIFICATION_TIME_S);
+ }
+
+ 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();
+ }
+
+ if (mNavigator) {
+ mNavigator->Invalidate();
+ mNavigator = nullptr;
+ }
+
+ mScreen = nullptr;
+ mMenubar = nullptr;
+ mToolbar = nullptr;
+ mLocationbar = nullptr;
+ mPersonalbar = nullptr;
+ mStatusbar = nullptr;
+ mScrollbars = nullptr;
+ mLocation = nullptr;
+ mHistory = nullptr;
+ mCustomElements = nullptr;
+ mFrames = nullptr;
+ mWindowUtils = nullptr;
+ mApplicationCache = nullptr;
+ mIndexedDB = nullptr;
+
+ mConsole = nullptr;
+
+ mExternal = nullptr;
+
+ mMozSelfSupport = nullptr;
+
+ mPerformance = nullptr;
+
+#ifdef MOZ_WEBSPEECH
+ mSpeechSynthesis = nullptr;
+#endif
+
+#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+ mOrientationChangeObserver = nullptr;
+#endif
+
+ ClearControllers();
+
+ mOpener = nullptr; // Forces Release
+ if (mContext) {
+ mContext = nullptr; // Forces Release
+ }
+ mChromeEventHandler = nullptr; // Forces Release
+ mParentTarget = nullptr;
+
+ if (IsOuterWindow()) {
+ nsGlobalWindow* inner = GetCurrentInnerWindowInternal();
+ if (inner) {
+ inner->CleanUp();
+ }
+ }
+
+ if (IsInnerWindow()) {
+ DisableGamepadUpdates();
+ mHasGamepad = false;
+ DisableVRUpdates();
+ mHasVREvents = false;
+#ifdef MOZ_B2G
+ DisableTimeChangeNotifications();
+#endif
+ DisableIdleCallbackRequests();
+ } else {
+ MOZ_ASSERT(!mHasGamepad);
+ MOZ_ASSERT(!mHasVREvents);
+ }
+
+ if (mCleanMessageManager) {
+ MOZ_ASSERT(mIsChrome, "only chrome should have msg manager cleaned");
+ nsGlobalChromeWindow *asChrome = static_cast<nsGlobalChromeWindow*>(this);
+ if (asChrome->mMessageManager) {
+ static_cast<nsFrameMessageManager*>(
+ asChrome->mMessageManager.get())->Disconnect();
+ }
+ }
+
+ mArguments = nullptr;
+ mDialogArguments = nullptr;
+
+ CleanupCachedXBLHandlers(this);
+
+ for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
+ mAudioContexts[i]->Shutdown();
+ }
+ mAudioContexts.Clear();
+
+ if (mIdleTimer) {
+ mIdleTimer->Cancel();
+ mIdleTimer = nullptr;
+ }
+
+ mServiceWorkerRegistrationTable.Clear();
+}
+
+void
+nsGlobalWindow::ClearControllers()
+{
+ if (mControllers) {
+ uint32_t count;
+ mControllers->GetControllerCount(&count);
+
+ while (count--) {
+ nsCOMPtr<nsIController> controller;
+ mControllers->GetControllerAt(count, getter_AddRefs(controller));
+
+ nsCOMPtr<nsIControllerContext> context = do_QueryInterface(controller);
+ if (context)
+ context->SetCommandContext(nullptr);
+ }
+
+ mControllers = nullptr;
+ }
+}
+
+void
+nsGlobalWindow::FreeInnerObjects()
+{
+ NS_ASSERTION(IsInnerWindow(), "Don't free inner objects on an outer window");
+
+ // 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);
+ }
+
+ mInnerObjectsFreed = true;
+
+ // Kill all of the workers for this window.
+ mozilla::dom::workers::CancelWorkersForWindow(AsInner());
+
+ ClearAllTimeouts();
+
+ if (mIdleTimer) {
+ mIdleTimer->Cancel();
+ mIdleTimer = nullptr;
+ }
+
+ mIdleObservers.Clear();
+
+ DisableIdleCallbackRequests();
+
+ mChromeEventHandler = nullptr;
+
+ if (mListenerManager) {
+ mListenerManager->Disconnect();
+ mListenerManager = nullptr;
+ }
+
+ mLocation = nullptr;
+ mHistory = nullptr;
+ mCustomElements = nullptr;
+
+ if (mNavigator) {
+ mNavigator->OnNavigation();
+ mNavigator->Invalidate();
+ mNavigator = nullptr;
+ }
+
+ if (mScreen) {
+ mScreen = nullptr;
+ }
+
+#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+ mOrientationChangeObserver = nullptr;
+#endif
+
+ if (mDoc) {
+ // Remember the document's principal and URI.
+ mDocumentPrincipal = mDoc->NodePrincipal();
+ mDocumentURI = mDoc->GetDocumentURI();
+ mDocBaseURI = mDoc->GetDocBaseURI();
+
+ while (mDoc->EventHandlingSuppressed()) {
+ mDoc->UnsuppressEventHandlingAndFireEvents(nsIDocument::eEvents, false);
+ }
+
+ // Note: we don't have to worry about eAnimationsOnly suppressions because
+ // they won't leak.
+ }
+
+ // Remove our reference to the document and the document principal.
+ mFocusedNode = nullptr;
+
+ if (mApplicationCache) {
+ static_cast<nsDOMOfflineResourceList*>(mApplicationCache.get())->Disconnect();
+ mApplicationCache = nullptr;
+ }
+
+ mIndexedDB = nullptr;
+
+ UnlinkHostObjectURIs();
+
+ NotifyWindowIDDestroyed("inner-window-destroyed");
+
+ CleanupCachedXBLHandlers(this);
+
+ for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
+ mAudioContexts[i]->Shutdown();
+ }
+ mAudioContexts.Clear();
+
+#ifdef MOZ_GAMEPAD
+ DisableGamepadUpdates();
+ mHasGamepad = false;
+ mGamepads.Clear();
+#endif
+ DisableVRUpdates();
+ mHasVREvents = false;
+ mVRDisplays.Clear();
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsISupports
+//*****************************************************************************
+
+// QueryInterface implementation for nsGlobalWindow
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsGlobalWindow)
+ NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+ // Make sure this matches the cast in nsGlobalWindow::FromWrapper()
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventTarget)
+ NS_INTERFACE_MAP_ENTRY(nsIDOMWindow)
+ if (aIID.Equals(NS_GET_IID(nsIDOMWindowInternal))) {
+ foundInterface = static_cast<nsIDOMWindowInternal*>(this);
+ if (!sWarnedAboutWindowInternal) {
+ sWarnedAboutWindowInternal = true;
+ nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
+ NS_LITERAL_CSTRING("Extensions"), mDoc,
+ nsContentUtils::eDOM_PROPERTIES,
+ "nsIDOMWindowInternalWarning");
+ }
+ } else
+ NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
+ NS_INTERFACE_MAP_ENTRY(nsIScriptGlobalObject)
+ NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
+ NS_INTERFACE_MAP_ENTRY(nsIDOMEventTarget)
+ NS_INTERFACE_MAP_ENTRY(mozilla::dom::EventTarget)
+ if (aIID.Equals(NS_GET_IID(nsPIDOMWindowInner))) {
+ foundInterface = AsInner();
+ } else
+ if (aIID.Equals(NS_GET_IID(mozIDOMWindow)) && IsInnerWindow()) {
+ foundInterface = AsInner();
+ } else
+ if (aIID.Equals(NS_GET_IID(nsPIDOMWindowOuter))) {
+ foundInterface = AsOuter();
+ } else
+ if (aIID.Equals(NS_GET_IID(mozIDOMWindowProxy)) && IsOuterWindow()) {
+ foundInterface = AsOuter();
+ } else
+ NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
+ NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
+NS_INTERFACE_MAP_END
+
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsGlobalWindow)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsGlobalWindow)
+
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(nsGlobalWindow)
+ 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();
+ }
+ tmp->UnmarkGrayTimers();
+ return true;
+ }
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
+
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(nsGlobalWindow)
+ return tmp->IsBlackForCC(true);
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
+
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(nsGlobalWindow)
+ return tmp->IsBlackForCC(false);
+NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
+
+inline void
+ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback,
+ IdleObserverHolder& aField,
+ const char* aName,
+ unsigned aFlags)
+{
+ CycleCollectionNoteChild(aCallback, aField.mIdleObserver.get(), aName, aFlags);
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(nsGlobalWindow)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(nsGlobalWindow)
+ if (MOZ_UNLIKELY(cb.WantDebugInfo())) {
+ char name[512];
+ nsAutoCString uri;
+ if (tmp->mDoc && tmp->mDoc->GetDocumentURI()) {
+ uri = tmp->mDoc->GetDocumentURI()->GetSpecOrDefault();
+ }
+ SprintfLiteral(name, "nsGlobalWindow # %" PRIu64 " %s %s", tmp->mWindowID,
+ tmp->IsInnerWindow() ? "inner" : "outer", uri.get());
+ cb.DescribeRefCountedNode(tmp->mRefCnt.get(), name);
+ } else {
+ NS_IMPL_CYCLE_COLLECTION_DESCRIBE(nsGlobalWindow, tmp->mRefCnt.get())
+ }
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mContext)
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mControllers)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mArguments)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDialogArguments)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mReturnValue)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mNavigator)
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPerformance)
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mServiceWorkerRegistrationTable)
+
+#ifdef MOZ_WEBSPEECH
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSpeechSynthesis)
+#endif
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOuterWindow)
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mListenerManager)
+
+ for (Timeout* timeout = tmp->mTimeouts.getFirst();
+ timeout;
+ timeout = timeout->getNext()) {
+ 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(mLocalStorage)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSessionStorage)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mApplicationCache)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSuspendedDoc)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIndexedDB)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDocumentPrincipal)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDoc)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIdleService)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWakeLock)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPendingStorageEvents)
+
+ for (IdleRequest* request : tmp->mIdleRequestCallbacks) {
+ cb.NoteNativeChild(request, NS_CYCLE_COLLECTION_PARTICIPANT(IdleRequest));
+ }
+
+ for (IdleRequest* request : tmp->mThrottledIdleRequestCallbacks) {
+ cb.NoteNativeChild(request, NS_CYCLE_COLLECTION_PARTICIPANT(IdleRequest));
+ }
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mIdleObservers)
+
+#ifdef MOZ_GAMEPAD
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGamepads)
+#endif
+
+ 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(mFrameElement)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFocusedNode)
+
+ 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(mExternal)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMozSelfSupport)
+
+ tmp->TraverseHostObjectURIs(cb);
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsGlobalWindow)
+ nsGlobalWindow::CleanupCachedXBLHandlers(tmp);
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mContext)
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mControllers)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mArguments)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mDialogArguments)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mReturnValue)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mNavigator)
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mPerformance)
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mServiceWorkerRegistrationTable)
+
+#ifdef MOZ_WEBSPEECH
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mSpeechSynthesis)
+#endif
+
+ if (tmp->mOuterWindow) {
+ nsGlobalWindow::Cast(tmp->mOuterWindow)->MaybeClearInnerWindow(tmp);
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mOuterWindow)
+ }
+
+ if (tmp->mListenerManager) {
+ tmp->mListenerManager->Disconnect();
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mListenerManager)
+ }
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mLocation)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mHistory)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mCustomElements)
+ 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)
+ }
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mSuspendedDoc)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mIndexedDB)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mDocumentPrincipal)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mDoc)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mIdleService)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mWakeLock)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mPendingStorageEvents)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mIdleObservers)
+
+#ifdef MOZ_GAMEPAD
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mGamepads)
+#endif
+
+ 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(mFrameElement)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mFocusedNode)
+
+ 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(mExternal)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mMozSelfSupport)
+
+ tmp->UnlinkHostObjectURIs();
+
+ tmp->DisableIdleCallbackRequests();
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+#ifdef DEBUG
+void
+nsGlobalWindow::RiskyUnlink()
+{
+ NS_CYCLE_COLLECTION_INNERNAME.Unlink(this);
+}
+#endif
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsGlobalWindow)
+ 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
+nsGlobalWindow::IsBlackForCC(bool aTracingNeeded)
+{
+ if (!nsCCUncollectableMarker::sGeneration) {
+ return false;
+ }
+
+ return (nsCCUncollectableMarker::InGeneration(GetMarkedCCGeneration()) ||
+ IsBlack()) &&
+ (!aTracingNeeded ||
+ HasNothingToTrace(static_cast<nsIDOMEventTarget*>(this)));
+}
+
+void
+nsGlobalWindow::UnmarkGrayTimers()
+{
+ for (Timeout* timeout = mTimeouts.getFirst();
+ timeout;
+ timeout = timeout->getNext()) {
+ if (timeout->mScriptHandler) {
+ timeout->mScriptHandler->MarkForCC();
+ }
+ }
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsIScriptGlobalObject
+//*****************************************************************************
+
+nsresult
+nsGlobalWindow::EnsureScriptEnvironment()
+{
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer) {
+ NS_WARNING("No outer window available!");
+ return NS_ERROR_FAILURE;
+ }
+
+ if (outer->GetWrapperPreserveColor()) {
+ return NS_OK;
+ }
+
+ NS_ASSERTION(!outer->GetCurrentInnerWindowInternal(),
+ "No cached wrapper, but we have an inner window?");
+
+ // If this window is a [i]frame, don't bother GC'ing when the frame's context
+ // is destroyed since a GC will happen when the frameset or host document is
+ // destroyed anyway.
+ nsCOMPtr<nsIScriptContext> context = new nsJSContext(!IsFrame(), outer);
+
+ NS_ASSERTION(!outer->mContext, "Will overwrite mContext!");
+
+ // should probably assert the context is clean???
+ context->WillInitializeContext();
+
+ nsresult rv = context->InitContext();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ outer->mContext = context;
+ return NS_OK;
+}
+
+nsIScriptContext *
+nsGlobalWindow::GetScriptContext()
+{
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer) {
+ return nullptr;
+ }
+ return outer->mContext;
+}
+
+JSObject *
+nsGlobalWindow::GetGlobalJSObject()
+{
+ return FastGetGlobalJSObject();
+}
+
+void
+nsGlobalWindow::TraceGlobalJSObject(JSTracer* aTrc)
+{
+ TraceWrapper(aTrc, "active window global");
+}
+
+bool
+nsGlobalWindow::WouldReuseInnerWindow(nsIDocument* aNewDocument)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // We reuse the inner window when:
+ // a. We are currently at our original document.
+ // b. At least one of the following conditions are true:
+ // -- The new document is the same as the old document. This means that we're
+ // getting called from document.open().
+ // -- The new document has the same origin as what we have loaded right now.
+
+ if (!mDoc || !aNewDocument) {
+ return false;
+ }
+
+ if (!mDoc->IsInitialDocument()) {
+ return false;
+ }
+
+ NS_ASSERTION(NS_IsAboutBlank(mDoc->GetDocumentURI()),
+ "How'd this happen?");
+
+ // Great, we're the original document, check for one of the other
+ // conditions.
+
+ if (mDoc == aNewDocument) {
+ return true;
+ }
+
+ bool equal;
+ if (NS_SUCCEEDED(mDoc->NodePrincipal()->Equals(aNewDocument->NodePrincipal(),
+ &equal)) &&
+ equal) {
+ // The origin is the same.
+ return true;
+ }
+
+ return false;
+}
+
+void
+nsGlobalWindow::SetInitialPrincipalToSubject()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // First, grab the subject principal.
+ nsCOMPtr<nsIPrincipal> newWindowPrincipal = nsContentUtils::SubjectPrincipalOrSystemIfNativeCaller();
+
+ // We should never create windows with an expanded principal.
+ // If we have a system principal, make sure we're not using it for a content
+ // docshell.
+ // NOTE: Please keep this logic in sync with nsWebShellWindow::Initialize().
+ if (nsContentUtils::IsExpandedPrincipal(newWindowPrincipal) ||
+ (nsContentUtils::IsSystemPrincipal(newWindowPrincipal) &&
+ GetDocShell()->ItemType() != nsIDocShellTreeItem::typeChrome)) {
+ newWindowPrincipal = nullptr;
+ }
+
+ // If there's an existing document, bail if it either:
+ if (mDoc) {
+ // (a) is not an initial about:blank document, or
+ if (!mDoc->IsInitialDocument())
+ return;
+ // (b) already has the correct principal.
+ if (mDoc->NodePrincipal() == newWindowPrincipal)
+ return;
+
+#ifdef DEBUG
+ // If we have a document loaded at this point, it had better be about:blank.
+ // Otherwise, something is really weird.
+ nsCOMPtr<nsIURI> uri;
+ mDoc->NodePrincipal()->GetURI(getter_AddRefs(uri));
+ NS_ASSERTION(uri && NS_IsAboutBlank(uri) &&
+ NS_IsAboutBlank(mDoc->GetDocumentURI()),
+ "Unexpected original document");
+#endif
+ }
+
+ GetDocShell()->CreateAboutBlankContentViewer(newWindowPrincipal);
+ mDoc->SetIsInitialDocument(true);
+
+ nsCOMPtr<nsIPresShell> shell = GetDocShell()->GetPresShell();
+
+ if (shell && !shell->DidInitialize()) {
+ // Ensure that if someone plays with this document they will get
+ // layout happening.
+ nsRect r = shell->GetPresContext()->GetVisibleArea();
+ shell->Initialize(r.width, r.height);
+ }
+}
+
+PopupControlState
+PushPopupControlState(PopupControlState aState, bool aForce)
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ PopupControlState oldState = gPopupControlState;
+
+ if (aState < gPopupControlState || aForce) {
+ gPopupControlState = aState;
+ }
+
+ return oldState;
+}
+
+void
+PopPopupControlState(PopupControlState aState)
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ gPopupControlState = aState;
+}
+
+PopupControlState
+nsGlobalWindow::PushPopupControlState(PopupControlState aState,
+ bool aForce) const
+{
+ return ::PushPopupControlState(aState, aForce);
+}
+
+void
+nsGlobalWindow::PopPopupControlState(PopupControlState aState) const
+{
+ ::PopPopupControlState(aState);
+}
+
+PopupControlState
+nsGlobalWindow::GetPopupControlState() const
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ return gPopupControlState;
+}
+
+#define WINDOWSTATEHOLDER_IID \
+{0x0b917c3e, 0xbd50, 0x4683, {0xaf, 0xc9, 0xc7, 0x81, 0x07, 0xae, 0x33, 0x26}}
+
+class WindowStateHolder final : public nsISupports
+{
+public:
+ NS_DECLARE_STATIC_IID_ACCESSOR(WINDOWSTATEHOLDER_IID)
+ NS_DECL_ISUPPORTS
+
+ explicit WindowStateHolder(nsGlobalWindow *aWindow);
+
+ nsGlobalWindow* GetInnerWindow() { return mInnerWindow; }
+
+ void DidRestoreWindow()
+ {
+ mInnerWindow = nullptr;
+ mInnerWindowReflector = nullptr;
+ }
+
+protected:
+ ~WindowStateHolder();
+
+ nsGlobalWindow *mInnerWindow;
+ // We hold onto this to make sure the inner window doesn't go away. The outer
+ // window ends up recalculating it anyway.
+ JS::PersistentRooted<JSObject*> mInnerWindowReflector;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(WindowStateHolder, WINDOWSTATEHOLDER_IID)
+
+WindowStateHolder::WindowStateHolder(nsGlobalWindow* aWindow)
+ : mInnerWindow(aWindow),
+ mInnerWindowReflector(RootingCx(), aWindow->GetWrapper())
+{
+ NS_PRECONDITION(aWindow, "null window");
+ NS_PRECONDITION(aWindow->IsInnerWindow(), "Saving an outer window");
+
+ aWindow->Suspend();
+
+ // When a global goes into the bfcache, we disable script.
+ xpc::Scriptability::Get(mInnerWindowReflector).SetDocShellAllowsScript(false);
+}
+
+WindowStateHolder::~WindowStateHolder()
+{
+ if (mInnerWindow) {
+ // This window was left in the bfcache and is now going away. We need to
+ // free it up.
+ // Note that FreeInnerObjects may already have been called on the
+ // inner window if its outer has already had SetDocShell(null)
+ // called.
+ mInnerWindow->FreeInnerObjects();
+ }
+}
+
+NS_IMPL_ISUPPORTS(WindowStateHolder, WindowStateHolder)
+
+// We need certain special behavior for remote XUL whitelisted domains, but we
+// don't want that behavior to take effect in automation, because we whitelist
+// all the mochitest domains. So we need to check a pref here.
+static bool
+TreatAsRemoteXUL(nsIPrincipal* aPrincipal)
+{
+ MOZ_ASSERT(!nsContentUtils::IsSystemPrincipal(aPrincipal));
+ return nsContentUtils::AllowXULXBLForPrincipal(aPrincipal) &&
+ !Preferences::GetBool("dom.use_xbl_scopes_for_remote_xul", false);
+}
+
+static bool
+EnablePrivilege(JSContext* cx, unsigned argc, JS::Value* vp)
+{
+ Telemetry::Accumulate(Telemetry::ENABLE_PRIVILEGE_EVER_CALLED, true);
+ return xpc::EnableUniversalXPConnect(cx);
+}
+
+static const JSFunctionSpec EnablePrivilegeSpec[] = {
+ JS_FS("enablePrivilege", EnablePrivilege, 1, 0),
+ JS_FS_END
+};
+
+static bool
+InitializeLegacyNetscapeObject(JSContext* aCx, JS::Handle<JSObject*> aGlobal)
+{
+ JSAutoCompartment ac(aCx, aGlobal);
+
+ // Note: MathJax depends on window.netscape being exposed. See bug 791526.
+ JS::Rooted<JSObject*> obj(aCx);
+ obj = JS_DefineObject(aCx, aGlobal, "netscape", nullptr);
+ NS_ENSURE_TRUE(obj, false);
+
+ obj = JS_DefineObject(aCx, obj, "security", nullptr);
+ NS_ENSURE_TRUE(obj, false);
+
+ // We hide enablePrivilege behind a pref because it has been altered in a
+ // way that makes it fundamentally insecure to use in production. Mozilla
+ // uses this pref during automated testing to support legacy test code that
+ // uses enablePrivilege. If you're not doing test automation, you _must_ not
+ // flip this pref, or you will be exposing all your users to security
+ // vulnerabilities.
+ if (!xpc::IsInAutomation()) {
+ return true;
+ }
+
+ /* Define PrivilegeManager object with the necessary "static" methods. */
+ obj = JS_DefineObject(aCx, obj, "PrivilegeManager", nullptr);
+ NS_ENSURE_TRUE(obj, false);
+
+ return JS_DefineFunctions(aCx, obj, EnablePrivilegeSpec);
+}
+
+bool
+nsGlobalWindow::ComputeIsSecureContext(nsIDocument* aDocument, SecureContextFlags aFlags)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIPrincipal> principal = aDocument->NodePrincipal();
+ if (nsContentUtils::IsSystemPrincipal(principal)) {
+ return true;
+ }
+
+ // Implement https://w3c.github.io/webappsec-secure-contexts/#settings-object
+ // With some modifications to allow for aFlags.
+
+ bool hadNonSecureContextCreator = false;
+
+ nsPIDOMWindowOuter* parentOuterWin = GetScriptableParent();
+ MOZ_ASSERT(parentOuterWin, "How can we get here? No docShell somehow?");
+ if (nsGlobalWindow::Cast(parentOuterWin) != this) {
+ // There may be a small chance that parentOuterWin has navigated in
+ // the time that it took us to start loading this sub-document. If that
+ // were the case then parentOuterWin->GetCurrentInnerWindow() wouldn't
+ // return the window for the document that is embedding us. For this
+ // reason we only use the GetScriptableParent call above to check that we
+ // have a same-type parent, but actually get the inner window via the
+ // document that we know is embedding us.
+ nsIDocument* creatorDoc = aDocument->GetParentDocument();
+ if (!creatorDoc) {
+ return false; // we must be tearing down
+ }
+ nsGlobalWindow* parentWin =
+ nsGlobalWindow::Cast(creatorDoc->GetInnerWindow());
+ if (!parentWin) {
+ return false; // we must be tearing down
+ }
+ MOZ_ASSERT(parentWin ==
+ nsGlobalWindow::Cast(parentOuterWin->GetCurrentInnerWindow()),
+ "Creator window mismatch while setting Secure Context state");
+ if (aFlags != SecureContextFlags::eIgnoreOpener) {
+ hadNonSecureContextCreator = !parentWin->IsSecureContext();
+ } else {
+ hadNonSecureContextCreator = !parentWin->IsSecureContextIfOpenerIgnored();
+ }
+ } else if (mHadOriginalOpener) {
+ if (aFlags != SecureContextFlags::eIgnoreOpener) {
+ hadNonSecureContextCreator = !mOriginalOpenerWasSecureContext;
+ }
+ }
+
+ if (hadNonSecureContextCreator) {
+ return false;
+ }
+
+ if (nsContentUtils::HttpsStateIsModern(aDocument)) {
+ return true;
+ }
+
+ if (principal->GetIsNullPrincipal()) {
+ nsCOMPtr<nsIURI> uri = aDocument->GetOriginalURI();
+ // IsOriginPotentiallyTrustworthy doesn't care about origin attributes so
+ // it doesn't actually matter what we use here, but reusing the document
+ // principal's attributes is convenient.
+ const PrincipalOriginAttributes& attrs =
+ BasePrincipal::Cast(principal)->OriginAttributesRef();
+ // CreateCodebasePrincipal correctly gets a useful principal for blob: and
+ // other URI_INHERITS_SECURITY_CONTEXT URIs.
+ principal = BasePrincipal::CreateCodebasePrincipal(uri, attrs);
+ if (NS_WARN_IF(!principal)) {
+ return false;
+ }
+ }
+
+ nsCOMPtr<nsIContentSecurityManager> csm =
+ do_GetService(NS_CONTENTSECURITYMANAGER_CONTRACTID);
+ NS_WARNING_ASSERTION(csm, "csm is null");
+ if (csm) {
+ bool isTrustworthyOrigin = false;
+ csm->IsOriginPotentiallyTrustworthy(principal, &isTrustworthyOrigin);
+ if (isTrustworthyOrigin) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/**
+ * Create a new global object that will be used for an inner window.
+ * Return the native global and an nsISupports 'holder' that can be used
+ * to manage the lifetime of it.
+ */
+static nsresult
+CreateNativeGlobalForInner(JSContext* aCx,
+ nsGlobalWindow* aNewInner,
+ nsIURI* aURI,
+ nsIPrincipal* aPrincipal,
+ JS::MutableHandle<JSObject*> aGlobal,
+ bool aIsSecureContext)
+{
+ MOZ_ASSERT(aCx);
+ MOZ_ASSERT(aNewInner);
+ MOZ_ASSERT(aNewInner->IsInnerWindow());
+ MOZ_ASSERT(aPrincipal);
+
+ // DOMWindow with nsEP is not supported, we have to make sure
+ // no one creates one accidentally.
+ nsCOMPtr<nsIExpandedPrincipal> nsEP = do_QueryInterface(aPrincipal);
+ MOZ_RELEASE_ASSERT(!nsEP, "DOMWindow with nsEP is not supported");
+
+ nsGlobalWindow *top = nullptr;
+ if (aNewInner->GetOuterWindow()) {
+ top = aNewInner->GetTopInternal();
+ }
+
+ JS::CompartmentOptions options;
+
+ // Sometimes add-ons load their own XUL windows, either as separate top-level
+ // windows or inside a browser element. In such cases we want to tag the
+ // window's compartment with the add-on ID. See bug 1092156.
+ if (nsContentUtils::IsSystemPrincipal(aPrincipal)) {
+ options.creationOptions().setAddonId(MapURIToAddonID(aURI));
+ }
+
+ if (top && top->GetGlobalJSObject()) {
+ options.creationOptions().setSameZoneAs(top->GetGlobalJSObject());
+ }
+
+ options.creationOptions().setSecureContext(aIsSecureContext);
+
+ xpc::InitGlobalObjectOptions(options, aPrincipal);
+
+ // Determine if we need the Components object.
+ bool needComponents = nsContentUtils::IsSystemPrincipal(aPrincipal) ||
+ TreatAsRemoteXUL(aPrincipal);
+ uint32_t flags = needComponents ? 0 : nsIXPConnect::OMIT_COMPONENTS_OBJECT;
+ flags |= nsIXPConnect::DONT_FIRE_ONNEWGLOBALHOOK;
+
+ if (!WindowBinding::Wrap(aCx, aNewInner, aNewInner, options,
+ nsJSPrincipals::get(aPrincipal), false, aGlobal) ||
+ !xpc::InitGlobalObject(aCx, aGlobal, flags)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ MOZ_ASSERT(aNewInner->GetWrapperPreserveColor() == aGlobal);
+
+ // Set the location information for the new global, so that tools like
+ // about:memory may use that information
+ xpc::SetLocationForGlobal(aGlobal, aURI);
+
+ if (!InitializeLegacyNetscapeObject(aCx, aGlobal)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::SetNewDocument(nsIDocument* aDocument,
+ nsISupports* aState,
+ bool aForceReuseInnerWindow)
+{
+ NS_PRECONDITION(mDocumentPrincipal == nullptr,
+ "mDocumentPrincipal prematurely set!");
+ MOZ_ASSERT(aDocument);
+
+ if (IsInnerWindow()) {
+ if (!mOuterWindow) {
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+
+ // Refuse to set a new document if the call came from an inner
+ // window that's not the current inner window.
+ if (mOuterWindow->GetCurrentInnerWindow() != AsInner()) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ return GetOuterWindowInternal()->SetNewDocument(aDocument, aState,
+ aForceReuseInnerWindow);
+ }
+
+ NS_PRECONDITION(IsOuterWindow(), "Must only be called on outer windows");
+
+ // Bail out early if we're in process of closing down the window.
+ NS_ENSURE_STATE(!mCleanedUp);
+
+ NS_ASSERTION(!AsOuter()->GetCurrentInnerWindow() ||
+ AsOuter()->GetCurrentInnerWindow()->GetExtantDoc() == mDoc,
+ "Uh, mDoc doesn't match the current inner window "
+ "document!");
+
+ bool wouldReuseInnerWindow = WouldReuseInnerWindow(aDocument);
+ if (aForceReuseInnerWindow &&
+ !wouldReuseInnerWindow &&
+ mDoc &&
+ mDoc->NodePrincipal() != aDocument->NodePrincipal()) {
+ NS_ERROR("Attempted forced inner window reuse while changing principal");
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ nsCOMPtr<nsIDocument> oldDoc = mDoc;
+
+ AutoJSAPI jsapi;
+ jsapi.Init();
+ JSContext *cx = jsapi.cx();
+
+ // Check if we're anywhere near the stack limit before we reach the
+ // transplanting code, since it has no good way to handle errors. This uses
+ // the untrusted script limit, which is not strictly necessary since no
+ // actual script should run.
+ bool overrecursed = false;
+ JS_CHECK_RECURSION_CONSERVATIVE_DONT_REPORT(cx, overrecursed = true);
+ if (overrecursed) {
+ NS_WARNING("Overrecursion in SetNewDocument");
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!mDoc) {
+ // First document load.
+
+ // Get our private root. If it is equal to us, then we need to
+ // attach our global key bindings that handles browser scrolling
+ // and other browser commands.
+ nsPIDOMWindowOuter* privateRoot = nsGlobalWindow::GetPrivateRoot();
+
+ if (privateRoot == AsOuter()) {
+ nsXBLService::AttachGlobalKeyHandler(mChromeEventHandler);
+ }
+ }
+
+ /* No mDocShell means we're already been partially closed down. When that
+ happens, setting status isn't a big requirement, so don't. (Doesn't happen
+ under normal circumstances, but bug 49615 describes a case.) */
+
+ nsContentUtils::AddScriptRunner(
+ NewRunnableMethod(this, &nsGlobalWindow::ClearStatus));
+
+ // Sometimes, WouldReuseInnerWindow() returns true even if there's no inner
+ // window (see bug 776497). Be safe.
+ bool reUseInnerWindow = (aForceReuseInnerWindow || wouldReuseInnerWindow) &&
+ GetCurrentInnerWindowInternal();
+
+ nsresult rv = NS_OK;
+
+ // We set mDoc even though this is an outer window to avoid
+ // having to *always* reach into the inner window to find the
+ // document.
+ mDoc = aDocument;
+
+ // Take this opportunity to clear mSuspendedDoc. Our old inner window is now
+ // responsible for unsuspending it.
+ mSuspendedDoc = nullptr;
+
+#ifdef DEBUG
+ mLastOpenedURI = aDocument->GetDocumentURI();
+#endif
+
+ mContext->WillInitializeContext();
+
+ nsGlobalWindow *currentInner = GetCurrentInnerWindowInternal();
+
+ if (currentInner && currentInner->mNavigator) {
+ currentInner->mNavigator->OnNavigation();
+ }
+
+ RefPtr<nsGlobalWindow> newInnerWindow;
+ bool createdInnerWindow = false;
+
+ bool thisChrome = IsChromeWindow();
+
+ nsCOMPtr<WindowStateHolder> wsh = do_QueryInterface(aState);
+ NS_ASSERTION(!aState || wsh, "What kind of weird state are you giving me here?");
+
+ JS::Rooted<JSObject*> newInnerGlobal(cx);
+ if (reUseInnerWindow) {
+ // We're reusing the current inner window.
+ NS_ASSERTION(!currentInner->IsFrozen(),
+ "We should never be reusing a shared inner window");
+ newInnerWindow = currentInner;
+ newInnerGlobal = currentInner->GetWrapperPreserveColor();
+
+ if (aDocument != oldDoc) {
+ JS::ExposeObjectToActiveJS(newInnerGlobal);
+ }
+
+ // We're reusing the inner window, but this still counts as a navigation,
+ // so all expandos and such defined on the outer window should go away. Force
+ // all Xray wrappers to be recomputed.
+ JS::Rooted<JSObject*> rootedObject(cx, GetWrapper());
+ if (!JS_RefreshCrossCompartmentWrappers(cx, rootedObject)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ // Inner windows are only reused for same-origin principals, but the principals
+ // don't necessarily match exactly. Update the principal on the compartment to
+ // match the new document.
+ // NB: We don't just call currentInner->RefreshCompartmentPrincipals() here
+ // because we haven't yet set its mDoc to aDocument.
+ JSCompartment *compartment = js::GetObjectCompartment(newInnerGlobal);
+#ifdef DEBUG
+ bool sameOrigin = false;
+ nsIPrincipal *existing =
+ nsJSPrincipals::get(JS_GetCompartmentPrincipals(compartment));
+ aDocument->NodePrincipal()->Equals(existing, &sameOrigin);
+ MOZ_ASSERT(sameOrigin);
+#endif
+ MOZ_ASSERT_IF(aDocument == oldDoc,
+ xpc::GetCompartmentPrincipal(compartment) ==
+ aDocument->NodePrincipal());
+ if (aDocument != oldDoc) {
+ JS_SetCompartmentPrincipals(compartment,
+ nsJSPrincipals::get(aDocument->NodePrincipal()));
+ // Make sure we clear out the old content XBL scope, so the new one will
+ // get created with a principal that subsumes our new principal.
+ xpc::ClearContentXBLScope(newInnerGlobal);
+ }
+ } else {
+ if (aState) {
+ newInnerWindow = wsh->GetInnerWindow();
+ newInnerGlobal = newInnerWindow->GetWrapperPreserveColor();
+ } else {
+ if (thisChrome) {
+ newInnerWindow = nsGlobalChromeWindow::Create(this);
+ } else if (mIsModalContentWindow) {
+ newInnerWindow = nsGlobalModalWindow::Create(this);
+ } else {
+ newInnerWindow = nsGlobalWindow::Create(this);
+ }
+
+ // The outer window is automatically treated as frozen when we
+ // null out the inner window. As a result, initializing classes
+ // on the new inner won't end up reaching into the old inner
+ // window for classes etc.
+ //
+ // [This happens with Object.prototype when XPConnect creates
+ // a temporary global while initializing classes; the reason
+ // being that xpconnect creates the temp global w/o a parent
+ // and proto, which makes the JS engine look up classes in
+ // cx->globalObject, i.e. this outer window].
+
+ mInnerWindow = nullptr;
+
+ mCreatingInnerWindow = true;
+ // Every script context we are initialized with must create a
+ // new global.
+ rv = CreateNativeGlobalForInner(cx, newInnerWindow,
+ aDocument->GetDocumentURI(),
+ aDocument->NodePrincipal(),
+ &newInnerGlobal,
+ ComputeIsSecureContext(aDocument));
+ NS_ASSERTION(NS_SUCCEEDED(rv) && newInnerGlobal &&
+ newInnerWindow->GetWrapperPreserveColor() == newInnerGlobal,
+ "Failed to get script global");
+ newInnerWindow->mIsSecureContextIfOpenerIgnored =
+ ComputeIsSecureContext(aDocument, SecureContextFlags::eIgnoreOpener);
+
+ mCreatingInnerWindow = false;
+ createdInnerWindow = true;
+
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ if (currentInner && currentInner->GetWrapperPreserveColor()) {
+ if (oldDoc == aDocument) {
+ // Move the navigator from the old inner window to the new one since
+ // this is a document.write. This is safe from a same-origin point of
+ // view because document.write can only be used by the same origin.
+ newInnerWindow->mNavigator = currentInner->mNavigator;
+ currentInner->mNavigator = nullptr;
+ if (newInnerWindow->mNavigator) {
+ newInnerWindow->mNavigator->SetWindow(newInnerWindow->AsInner());
+ }
+
+ // Make a copy of the old window's performance object on document.open.
+ // Note that we have to force eager creation of it here, because we need
+ // to grab the current document channel and whatnot before that changes.
+ currentInner->AsInner()->CreatePerformanceObjectIfNeeded();
+ if (currentInner->mPerformance) {
+ newInnerWindow->mPerformance =
+ Performance::CreateForMainThread(newInnerWindow->AsInner(),
+ currentInner->mPerformance->GetDOMTiming(),
+ currentInner->mPerformance->GetChannel(),
+ currentInner->mPerformance->GetParentPerformance());
+ }
+ }
+
+ // Don't free objects on our current inner window if it's going to be
+ // held in the bfcache.
+ if (!currentInner->IsFrozen()) {
+ currentInner->FreeInnerObjects();
+ }
+ }
+
+ mInnerWindow = newInnerWindow->AsInner();
+
+ if (!GetWrapperPreserveColor()) {
+ JS::Rooted<JSObject*> outer(cx,
+ NewOuterWindowProxy(cx, newInnerGlobal, thisChrome));
+ NS_ENSURE_TRUE(outer, NS_ERROR_FAILURE);
+
+ js::SetProxyExtra(outer, 0, js::PrivateValue(ToSupports(this)));
+
+ // Inform the nsJSContext, which is the canonical holder of the outer.
+ mContext->SetWindowProxy(outer);
+ mContext->DidInitializeContext();
+
+ SetWrapper(mContext->GetWindowProxy());
+ } else {
+ JS::ExposeObjectToActiveJS(newInnerGlobal);
+ JS::Rooted<JSObject*> outerObject(cx,
+ NewOuterWindowProxy(cx, newInnerGlobal, thisChrome));
+ if (!outerObject) {
+ NS_ERROR("out of memory");
+ return NS_ERROR_FAILURE;
+ }
+
+ JS::Rooted<JSObject*> obj(cx, GetWrapperPreserveColor());
+
+ js::SetProxyExtra(obj, 0, js::PrivateValue(nullptr));
+ js::SetProxyExtra(outerObject, 0, js::PrivateValue(nullptr));
+
+ outerObject = xpc::TransplantObject(cx, obj, outerObject);
+ if (!outerObject) {
+ NS_ERROR("unable to transplant wrappers, probably OOM");
+ return NS_ERROR_FAILURE;
+ }
+
+ js::SetProxyExtra(outerObject, 0, js::PrivateValue(ToSupports(this)));
+
+ SetWrapper(outerObject);
+
+ MOZ_ASSERT(js::GetGlobalForObjectCrossCompartment(outerObject) == newInnerGlobal);
+
+ // Inform the nsJSContext, which is the canonical holder of the outer.
+ mContext->SetWindowProxy(outerObject);
+ }
+
+ // Enter the new global's compartment.
+ JSAutoCompartment ac(cx, GetWrapperPreserveColor());
+
+ {
+ JS::Rooted<JSObject*> outer(cx, GetWrapperPreserveColor());
+ js::SetWindowProxy(cx, newInnerGlobal, outer);
+ }
+
+ // Set scriptability based on the state of the docshell.
+ bool allow = GetDocShell()->GetCanExecuteScripts();
+ xpc::Scriptability::Get(GetWrapperPreserveColor()).SetDocShellAllowsScript(allow);
+
+ if (!aState) {
+ // Get the "window" property once so it will be cached on our inner. We
+ // have to do this here, not in binding code, because this has to happen
+ // after we've created the outer window proxy and stashed it in the outer
+ // nsGlobalWindow, so GetWrapperPreserveColor() on that outer
+ // nsGlobalWindow doesn't return null and nsGlobalWindow::OuterObject
+ // works correctly.
+ JS::Rooted<JS::Value> unused(cx);
+ if (!JS_GetProperty(cx, newInnerGlobal, "window", &unused)) {
+ NS_ERROR("can't create the 'window' property");
+ return NS_ERROR_FAILURE;
+ }
+
+ // And same thing for the "self" property.
+ if (!JS_GetProperty(cx, newInnerGlobal, "self", &unused)) {
+ NS_ERROR("can't create the 'self' property");
+ return NS_ERROR_FAILURE;
+ }
+ }
+ }
+
+ JSAutoCompartment ac(cx, GetWrapperPreserveColor());
+
+ if (!aState && !reUseInnerWindow) {
+ // Loading a new page and creating a new inner window, *not*
+ // restoring from session history.
+
+ // Now that both the the inner and outer windows are initialized
+ // let the script context do its magic to hook them together.
+ MOZ_ASSERT(mContext->GetWindowProxy() == GetWrapperPreserveColor());
+#ifdef DEBUG
+ JS::Rooted<JSObject*> rootedJSObject(cx, GetWrapperPreserveColor());
+ JS::Rooted<JSObject*> proto1(cx), proto2(cx);
+ JS_GetPrototype(cx, rootedJSObject, &proto1);
+ JS_GetPrototype(cx, newInnerGlobal, &proto2);
+ NS_ASSERTION(proto1 == proto2,
+ "outer and inner globals should have the same prototype");
+#endif
+
+ mInnerWindow->SyncStateFromParentWindow();
+ }
+
+ // Add an extra ref in case we release mContext during GC.
+ nsCOMPtr<nsIScriptContext> kungFuDeathGrip(mContext);
+
+ aDocument->SetScriptGlobalObject(newInnerWindow);
+ MOZ_ASSERT(newInnerWindow->mTabGroup,
+ "We must have a TabGroup cached at this point");
+
+ if (!aState) {
+ if (reUseInnerWindow) {
+
+ if (newInnerWindow->mDoc != aDocument) {
+ newInnerWindow->mDoc = aDocument;
+
+ // The storage objects contain the URL of the window. We have to
+ // recreate them when the innerWindow is reused.
+ newInnerWindow->mLocalStorage = nullptr;
+ newInnerWindow->mSessionStorage = nullptr;
+
+ newInnerWindow->ClearDocumentDependentSlots(cx);
+ }
+ } else {
+ newInnerWindow->InnerSetNewDocument(cx, aDocument);
+
+ // Initialize DOM classes etc on the inner window.
+ JS::Rooted<JSObject*> obj(cx, newInnerGlobal);
+ rv = kungFuDeathGrip->InitClasses(obj);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ // If the document comes from a JAR, check if the channel was determined
+ // to be unsafe. If so, permanently disable script on the compartment by
+ // calling Block() and throwing away the key.
+ nsCOMPtr<nsIJARChannel> jarChannel = do_QueryInterface(aDocument->GetChannel());
+ if (jarChannel && jarChannel->GetIsUnsafe()) {
+ xpc::Scriptability::Get(newInnerGlobal).Block();
+ }
+
+ if (mArguments) {
+ newInnerWindow->DefineArgumentsProperty(mArguments);
+ mArguments = nullptr;
+ }
+
+ // Give the new inner window our chrome event handler (since it
+ // doesn't have one).
+ newInnerWindow->mChromeEventHandler = mChromeEventHandler;
+ }
+
+ nsJSContext::PokeGC(JS::gcreason::SET_NEW_DOCUMENT);
+ kungFuDeathGrip->DidInitializeContext();
+
+ // We wait to fire the debugger hook until the window is all set up and hooked
+ // up with the outer. See bug 969156.
+ if (createdInnerWindow) {
+ nsContentUtils::AddScriptRunner(
+ NewRunnableMethod(newInnerWindow,
+ &nsGlobalWindow::FireOnNewGlobalObject));
+ }
+
+ if (newInnerWindow && !newInnerWindow->mHasNotifiedGlobalCreated && mDoc) {
+ // We should probably notify. However if this is the, arguably bad,
+ // situation when we're creating a temporary non-chrome-about-blank
+ // document in a chrome docshell, don't notify just yet. Instead wait
+ // until we have a real chrome doc.
+ if (!mDocShell ||
+ mDocShell->ItemType() != nsIDocShellTreeItem::typeChrome ||
+ nsContentUtils::IsSystemPrincipal(mDoc->NodePrincipal())) {
+ newInnerWindow->mHasNotifiedGlobalCreated = true;
+ nsContentUtils::AddScriptRunner(
+ NewRunnableMethod(this, &nsGlobalWindow::DispatchDOMWindowCreated));
+ }
+ }
+
+ PreloadLocalStorage();
+
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::PreloadLocalStorage()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!Preferences::GetBool(kStorageEnabled)) {
+ return;
+ }
+
+ if (IsChromeWindow()) {
+ return;
+ }
+
+ nsIPrincipal* principal = GetPrincipal();
+ if (!principal) {
+ return;
+ }
+
+ nsresult rv;
+
+ nsCOMPtr<nsIDOMStorageManager> storageManager =
+ do_GetService("@mozilla.org/dom/localStorage-manager;1", &rv);
+ if (NS_FAILED(rv)) {
+ return;
+ }
+
+ storageManager->PrecacheStorage(principal);
+}
+
+void
+nsGlobalWindow::DispatchDOMWindowCreated()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!mDoc) {
+ return;
+ }
+
+ // Fire DOMWindowCreated at chrome event listeners
+ nsContentUtils::DispatchChromeEvent(mDoc, mDoc, NS_LITERAL_STRING("DOMWindowCreated"),
+ true /* bubbles */,
+ false /* not cancellable */);
+
+ nsCOMPtr<nsIObserverService> observerService =
+ mozilla::services::GetObserverService();
+
+ // The event dispatching could possibly cause docshell destory, and
+ // consequently cause mDoc to be set to nullptr by DropOuterWindowDocs(),
+ // so check it again here.
+ if (observerService && mDoc) {
+ nsAutoString origin;
+ nsIPrincipal* principal = mDoc->NodePrincipal();
+ nsContentUtils::GetUTFOrigin(principal, origin);
+ observerService->
+ NotifyObservers(static_cast<nsIDOMWindow*>(this),
+ nsContentUtils::IsSystemPrincipal(principal) ?
+ "chrome-document-global-created" :
+ "content-document-global-created",
+ origin.get());
+ }
+}
+
+void
+nsGlobalWindow::ClearStatus()
+{
+ SetStatusOuter(EmptyString());
+}
+
+void
+nsGlobalWindow::InnerSetNewDocument(JSContext* aCx, nsIDocument* aDocument)
+{
+ NS_PRECONDITION(IsInnerWindow(), "Must only be called on inner windows");
+ MOZ_ASSERT(aDocument);
+
+ if (gDOMLeakPRLog && MOZ_LOG_TEST(gDOMLeakPRLog, LogLevel::Debug)) {
+ nsIURI *uri = aDocument->GetDocumentURI();
+ PR_LogPrint("DOMWINDOW %p SetNewDocument %s",
+ this, uri ? uri->GetSpecOrDefault().get() : "");
+ }
+
+ mDoc = aDocument;
+ ClearDocumentDependentSlots(aCx);
+ mFocusedNode = nullptr;
+ mLocalStorage = nullptr;
+ mSessionStorage = nullptr;
+
+#ifdef DEBUG
+ mLastOpenedURI = aDocument->GetDocumentURI();
+#endif
+
+ Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_MUTATION_LISTENERS,
+ mMutationBits ? 1 : 0);
+
+ // Clear our mutation bitfield.
+ mMutationBits = 0;
+}
+
+void
+nsGlobalWindow::SetDocShell(nsIDocShell* aDocShell)
+{
+ NS_ASSERTION(IsOuterWindow(), "Uh, SetDocShell() called on inner window!");
+ MOZ_ASSERT(aDocShell);
+
+ if (aDocShell == mDocShell) {
+ return;
+ }
+
+ mDocShell = aDocShell; // Weak Reference
+
+ nsCOMPtr<nsPIDOMWindowOuter> parentWindow = GetScriptableParentOrNull();
+ MOZ_RELEASE_ASSERT(!parentWindow || !mTabGroup || mTabGroup == Cast(parentWindow)->mTabGroup);
+
+ NS_ASSERTION(!mNavigator, "Non-null mNavigator in outer window!");
+
+ if (mFrames) {
+ mFrames->SetDocShell(aDocShell);
+ }
+
+ // Get our enclosing chrome shell and retrieve its global window impl, so
+ // that we can do some forwarding to the chrome document.
+ nsCOMPtr<nsIDOMEventTarget> chromeEventHandler;
+ mDocShell->GetChromeEventHandler(getter_AddRefs(chromeEventHandler));
+ mChromeEventHandler = do_QueryInterface(chromeEventHandler);
+ if (!mChromeEventHandler) {
+ // We have no chrome event handler. If we have a parent,
+ // get our chrome event handler from the parent. If
+ // we don't have a parent, then we need to make a new
+ // window root object that will function as a chrome event
+ // handler and receive all events that occur anywhere inside
+ // our window.
+ nsCOMPtr<nsPIDOMWindowOuter> parentWindow = GetParent();
+ if (parentWindow.get() != AsOuter()) {
+ mChromeEventHandler = parentWindow->GetChromeEventHandler();
+ }
+ else {
+ mChromeEventHandler = NS_NewWindowRoot(AsOuter());
+ mIsRootOuterWindow = true;
+ }
+ }
+
+ bool docShellActive;
+ mDocShell->GetIsActive(&docShellActive);
+ mIsBackground = !docShellActive;
+}
+
+void
+nsGlobalWindow::DetachFromDocShell()
+{
+ NS_ASSERTION(IsOuterWindow(), "Uh, DetachFromDocShell() called on inner window!");
+
+ // DetachFromDocShell means the window is being torn down. Drop our
+ // reference to the script context, allowing it to be deleted
+ // later. Meanwhile, keep our weak reference to the script object
+ // so that it can be retrieved later (until it is finalized by the JS GC).
+
+ NS_ASSERTION(mTimeouts.isEmpty(), "Uh, outer window holds timeouts!");
+
+ // Call FreeInnerObjects on all inner windows, not just the current
+ // one, since some could be held by WindowStateHolder objects that
+ // are GC-owned.
+ for (RefPtr<nsGlobalWindow> inner = (nsGlobalWindow *)PR_LIST_HEAD(this);
+ inner != this;
+ inner = (nsGlobalWindow*)PR_NEXT_LINK(inner)) {
+ MOZ_ASSERT(!inner->mOuterWindow || inner->mOuterWindow == AsOuter());
+ inner->FreeInnerObjects();
+ }
+
+ if (auto* reporter = nsWindowMemoryReporter::Get()) {
+ reporter->ObserveDOMWindowDetached(this);
+ }
+
+ NotifyWindowIDDestroyed("outer-window-destroyed");
+
+ nsGlobalWindow *currentInner = GetCurrentInnerWindowInternal();
+
+ if (currentInner) {
+ NS_ASSERTION(mDoc, "Must have doc!");
+
+ // Remember the document's principal and URI.
+ mDocumentPrincipal = mDoc->NodePrincipal();
+ mDocumentURI = mDoc->GetDocumentURI();
+ mDocBaseURI = mDoc->GetDocBaseURI();
+
+ // Release our document reference
+ DropOuterWindowDocs();
+ mFocusedNode = nullptr;
+ }
+
+ ClearControllers();
+
+ mChromeEventHandler = nullptr; // force release now
+
+ if (mContext) {
+ nsJSContext::PokeGC(JS::gcreason::SET_DOC_SHELL);
+ mContext = nullptr;
+ }
+
+ mDocShell = nullptr; // Weak Reference
+
+ NS_ASSERTION(!mNavigator, "Non-null mNavigator in outer window!");
+
+ if (mFrames) {
+ mFrames->SetDocShell(nullptr);
+ }
+
+ MaybeForgiveSpamCount();
+ CleanUp();
+}
+
+void
+nsGlobalWindow::SetOpenerWindow(nsPIDOMWindowOuter* aOpener,
+ bool aOriginalOpener)
+{
+ FORWARD_TO_OUTER_VOID(SetOpenerWindow, (aOpener, aOriginalOpener));
+
+ nsWeakPtr opener = do_GetWeakReference(aOpener);
+ if (opener == mOpener) {
+ return;
+ }
+
+ NS_ASSERTION(!aOriginalOpener || !mSetOpenerWindowCalled,
+ "aOriginalOpener is true, but not first call to "
+ "SetOpenerWindow!");
+ NS_ASSERTION(aOpener || !aOriginalOpener,
+ "Shouldn't set mHadOriginalOpener if aOpener is null");
+
+ mOpener = opener.forget();
+ NS_ASSERTION(mOpener || !aOpener, "Opener must support weak references!");
+
+ if (aOriginalOpener) {
+ MOZ_ASSERT(!mHadOriginalOpener,
+ "Probably too late to call ComputeIsSecureContext again");
+ mHadOriginalOpener = true;
+ mOriginalOpenerWasSecureContext =
+ aOpener->GetCurrentInnerWindow()->IsSecureContext();
+ }
+
+#ifdef DEBUG
+ mSetOpenerWindowCalled = true;
+#endif
+}
+
+static
+already_AddRefed<EventTarget>
+TryGetTabChildGlobalAsEventTarget(nsISupports *aFrom)
+{
+ nsCOMPtr<nsIFrameLoaderOwner> frameLoaderOwner = do_QueryInterface(aFrom);
+ if (!frameLoaderOwner) {
+ return nullptr;
+ }
+
+ RefPtr<nsFrameLoader> frameLoader = frameLoaderOwner->GetFrameLoader();
+ if (!frameLoader) {
+ return nullptr;
+ }
+
+ nsCOMPtr<EventTarget> target = frameLoader->GetTabChildGlobalAsEventTarget();
+ return target.forget();
+}
+
+void
+nsGlobalWindow::UpdateParentTarget()
+{
+ // 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 =
+ TryGetTabChildGlobalAsEventTarget(frameElement);
+
+ if (!eventTarget) {
+ nsGlobalWindow* topWin = GetScriptableTopInternal();
+ if (topWin) {
+ frameElement = topWin->AsOuter()->GetFrameElementInternal();
+ eventTarget = TryGetTabChildGlobalAsEventTarget(frameElement);
+ }
+ }
+
+ if (!eventTarget) {
+ eventTarget = TryGetTabChildGlobalAsEventTarget(mChromeEventHandler);
+ }
+
+ if (!eventTarget) {
+ eventTarget = mChromeEventHandler;
+ }
+
+ mParentTarget = eventTarget;
+}
+
+EventTarget*
+nsGlobalWindow::GetTargetForDOMEvent()
+{
+ return GetOuterWindowInternal();
+}
+
+EventTarget*
+nsGlobalWindow::GetTargetForEventTargetChain()
+{
+ return IsInnerWindow() ? this : GetCurrentInnerWindowInternal();
+}
+
+nsresult
+nsGlobalWindow::WillHandleEvent(EventChainPostVisitor& aVisitor)
+{
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::PreHandleEvent(EventChainPreVisitor& aVisitor)
+{
+ NS_PRECONDITION(IsInnerWindow(), "PreHandleEvent is used on outer window!?");
+ 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()) {
+ gMouseDown = true;
+ } else if ((msg == eMouseUp || msg == eDragEnd) &&
+ aVisitor.mEvent->IsTrusted()) {
+ gMouseDown = false;
+ if (gDragServiceDisabled) {
+ nsCOMPtr<nsIDragService> ds =
+ do_GetService("@mozilla.org/widget/dragservice;1");
+ if (ds) {
+ gDragServiceDisabled = false;
+ ds->Unsuppress();
+ }
+ }
+ }
+
+ aVisitor.mParentTarget = GetParentTarget();
+
+ // Handle 'active' event.
+ if (!mIdleObservers.IsEmpty() &&
+ aVisitor.mEvent->IsTrusted() &&
+ (aVisitor.mEvent->HasMouseEventMessage() ||
+ aVisitor.mEvent->HasDragEventMessage())) {
+ mAddActiveEventFuzzTime = false;
+ }
+
+ return NS_OK;
+}
+
+bool
+nsGlobalWindow::ShouldPromptToBlockDialogs()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsGlobalWindow *topWindow = GetScriptableTopInternal();
+ if (!topWindow) {
+ NS_ASSERTION(!mDocShell, "ShouldPromptToBlockDialogs() called without a top window?");
+ return true;
+ }
+
+ topWindow = topWindow->GetCurrentInnerWindowInternal();
+ if (!topWindow) {
+ return true;
+ }
+
+ return topWindow->DialogsAreBeingAbused();
+}
+
+bool
+nsGlobalWindow::AreDialogsEnabled()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsGlobalWindow *topWindow = GetScriptableTopInternal();
+ if (!topWindow) {
+ NS_ERROR("AreDialogsEnabled() called without a top window?");
+ return false;
+ }
+
+ // TODO: Warn if no top window?
+ topWindow = topWindow->GetCurrentInnerWindowInternal();
+ if (!topWindow) {
+ return false;
+ }
+
+ // Dialogs are blocked if the content viewer is hidden
+ if (mDocShell) {
+ nsCOMPtr<nsIContentViewer> cv;
+ mDocShell->GetContentViewer(getter_AddRefs(cv));
+
+ bool isHidden;
+ cv->GetIsHidden(&isHidden);
+ if (isHidden) {
+ return false;
+ }
+ }
+
+ // Dialogs are also blocked if the document is sandboxed with SANDBOXED_MODALS
+ // (or if we have no document, of course). Which document? Who knows; the
+ // spec is daft. See <https://github.com/whatwg/html/issues/1206>. For now
+ // just go ahead and check mDoc, since in everything except edge cases in
+ // which a frame is allow-same-origin but not allow-scripts and is being poked
+ // at by some other window this should be the right thing anyway.
+ if (!mDoc || (mDoc->GetSandboxFlags() & SANDBOXED_MODALS)) {
+ return false;
+ }
+
+ return topWindow->mAreDialogsEnabled;
+}
+
+bool
+nsGlobalWindow::DialogsAreBeingAbused()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ 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 GetPopupControlState() > openAllowed ||
+ mDialogAbuseCount > MAX_SUCCESSIVE_DIALOG_COUNT;
+ }
+
+ // Reset the abuse counter
+ mDialogAbuseCount = 0;
+
+ return false;
+}
+
+bool
+nsGlobalWindow::ConfirmDialogIfNeeded()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ NS_ENSURE_TRUE(mDocShell, false);
+ nsCOMPtr<nsIPromptService> promptSvc =
+ do_GetService("@mozilla.org/embedcomp/prompt-service;1");
+
+ if (!promptSvc) {
+ return true;
+ }
+
+ // Reset popup state while opening a modal dialog, and firing events
+ // about the dialog, to prevent the current state from being active
+ // the whole time a modal dialog is open.
+ nsAutoPopupStatePusher popupStatePusher(openAbused, true);
+
+ bool disableDialog = false;
+ nsXPIDLString label, title;
+ nsContentUtils::GetLocalizedString(nsContentUtils::eCOMMON_DIALOG_PROPERTIES,
+ "ScriptDialogLabel", label);
+ nsContentUtils::GetLocalizedString(nsContentUtils::eCOMMON_DIALOG_PROPERTIES,
+ "ScriptDialogPreventTitle", title);
+ promptSvc->Confirm(AsOuter(), title.get(), label.get(), &disableDialog);
+ if (disableDialog) {
+ DisableDialogs();
+ return false;
+ }
+
+ return true;
+}
+
+void
+nsGlobalWindow::DisableDialogs()
+{
+ nsGlobalWindow *topWindow = GetScriptableTopInternal();
+ if (!topWindow) {
+ NS_ERROR("DisableDialogs() called without a top window?");
+ return;
+ }
+
+ topWindow = topWindow->GetCurrentInnerWindowInternal();
+ // TODO: Warn if no top window?
+ if (topWindow) {
+ topWindow->mAreDialogsEnabled = false;
+ }
+}
+
+void
+nsGlobalWindow::EnableDialogs()
+{
+ nsGlobalWindow *topWindow = GetScriptableTopInternal();
+ if (!topWindow) {
+ NS_ERROR("EnableDialogs() called without a top window?");
+ return;
+ }
+
+ // TODO: Warn if no top window?
+ topWindow = topWindow->GetCurrentInnerWindowInternal();
+ if (topWindow) {
+ topWindow->mAreDialogsEnabled = true;
+ }
+}
+
+nsresult
+nsGlobalWindow::PostHandleEvent(EventChainPostVisitor& aVisitor)
+{
+ NS_PRECONDITION(IsInnerWindow(), "PostHandleEvent is used on outer window!?");
+
+ // 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. */
+ nsCOMPtr<nsIDOMEventTarget> 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()) {
+ // 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 nsDocument::PreHandleEvent.
+ mIsDocumentLoaded = true;
+
+ 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);
+ }
+ }
+
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::DispatchDOMEvent(WidgetEvent* aEvent,
+ nsIDOMEvent* aDOMEvent,
+ nsPresContext* aPresContext,
+ nsEventStatus* aEventStatus)
+{
+ return EventDispatcher::DispatchDOMEvent(static_cast<nsPIDOMWindow*>(this),
+ aEvent, aDOMEvent, aPresContext,
+ aEventStatus);
+}
+
+void
+nsGlobalWindow::PoisonOuterWindowProxy(JSObject *aObject)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ if (aObject == GetWrapperPreserveColor()) {
+ PoisonWrapper();
+ }
+}
+
+nsresult
+nsGlobalWindow::SetArguments(nsIArray *aArguments)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ nsresult rv;
+
+ // Historically, we've used the same machinery to handle openDialog arguments
+ // (exposed via window.arguments) and showModalDialog arguments (exposed via
+ // window.dialogArguments), even though the former is XUL-only and uses an XPCOM
+ // array while the latter is web-exposed and uses an arbitrary JS value.
+ // Moreover, per-spec |dialogArguments| is a property of the browsing context
+ // (outer), whereas |arguments| lives on the inner.
+ //
+ // We've now mostly separated them, but the difference is still opaque to
+ // nsWindowWatcher (the caller of SetArguments in this little back-and-forth
+ // embedding waltz we do here).
+ //
+ // So we need to demultiplex the two cases here.
+ nsGlobalWindow *currentInner = GetCurrentInnerWindowInternal();
+ if (mIsModalContentWindow) {
+ // nsWindowWatcher blindly converts the original nsISupports into an array
+ // of length 1. We need to recover it, and then cast it back to the concrete
+ // object we know it to be.
+ nsCOMPtr<nsISupports> supports = do_QueryElementAt(aArguments, 0, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+ mDialogArguments = static_cast<DialogValueHolder*>(supports.get());
+ } else {
+ mArguments = aArguments;
+ rv = currentInner->DefineArgumentsProperty(aArguments);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::DefineArgumentsProperty(nsIArray *aArguments)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ MOZ_ASSERT(!mIsModalContentWindow); // Handled separately.
+
+ 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);
+}
+
+namespace {
+
+// Convert a ThrottledEventQueue length to a timer delay in milliseconds.
+// This will return a value between 0 and INT32_MAX.
+int32_t
+CalculateNewBackPressureDelayMS(uint32_t aBacklogDepth)
+{
+ double multiplier = static_cast<double>(aBacklogDepth) /
+ static_cast<double>(gThrottledEventQueueBackPressure);
+ double value = static_cast<double>(gBackPressureDelayMS) * multiplier;
+ // Avoid overflow
+ if (value > INT32_MAX) {
+ value = INT32_MAX;
+ }
+
+ // Once we get close to an empty queue just floor the delay back to zero.
+ // We want to ensure we don't get stuck in a condition where there is a
+ // small amount of delay remaining due to an active, but reasonable, queue.
+ else if (value < static_cast<double>(gBackPressureDelayMinimumMS)) {
+ value = 0;
+ }
+ return static_cast<int32_t>(value);
+}
+
+} // anonymous namespace
+
+void
+nsGlobalWindow::MaybeApplyBackPressure()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+
+ // If we are already in back pressure then we don't need to apply back
+ // pressure again. We also shouldn't need to apply back pressure while
+ // the window is suspended.
+ if (mBackPressureDelayMS > 0 || IsSuspended()) {
+ return;
+ }
+
+ RefPtr<ThrottledEventQueue> queue = TabGroup()->GetThrottledEventQueue();
+ if (!queue) {
+ return;
+ }
+
+ // Only begin back pressure if the window has greatly fallen behind the main
+ // thread. This is a somewhat arbitrary threshold chosen such that it should
+ // rarely fire under normaly circumstances. Its low enough, though,
+ // that we should have time to slow new runnables from being added before an
+ // OOM occurs.
+ if (queue->Length() < gThrottledEventQueueBackPressure) {
+ return;
+ }
+
+ // First attempt to dispatch a runnable to update our back pressure state. We
+ // do this first in order to verify we can dispatch successfully before
+ // entering the back pressure state.
+ nsCOMPtr<nsIRunnable> r =
+ NewRunnableMethod(this, &nsGlobalWindow::CancelOrUpdateBackPressure);
+ nsresult rv = queue->Dispatch(r.forget(), NS_DISPATCH_NORMAL);
+ NS_ENSURE_SUCCESS_VOID(rv);
+
+ // Since the callback was scheduled successfully we can now persist the
+ // backpressure value.
+ mBackPressureDelayMS = CalculateNewBackPressureDelayMS(queue->Length());
+}
+
+void
+nsGlobalWindow::CancelOrUpdateBackPressure()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(mBackPressureDelayMS > 0);
+
+ // First, re-calculate the back pressure delay.
+ RefPtr<ThrottledEventQueue> queue = TabGroup()->GetThrottledEventQueue();
+ int32_t newBackPressureDelayMS =
+ CalculateNewBackPressureDelayMS(queue ? queue->Length() : 0);
+
+ // If the delay has increased, then simply apply it. Increasing the delay
+ // does not risk re-ordering timers.
+ if (newBackPressureDelayMS > mBackPressureDelayMS) {
+ mBackPressureDelayMS = newBackPressureDelayMS;
+ }
+
+ // If the delay has decreased, though, we only apply the new value if it has
+ // reduced significantly. This hysteresis avoids thrashing the back pressure
+ // value back and forth rapidly. This is important because reducing the
+ // backpressure delay requires calling ResetTimerForThrottleReduction() which
+ // can be quite expensive. We only want to call that method if the back log
+ // is really clearing.
+ else if (newBackPressureDelayMS == 0 ||
+ (static_cast<uint32_t>(mBackPressureDelayMS) >
+ (newBackPressureDelayMS + gBackPressureDelayReductionThresholdMS))) {
+ int32_t oldBackPressureDelayMS = mBackPressureDelayMS;
+ mBackPressureDelayMS = newBackPressureDelayMS;
+
+ // If the back pressure delay has gone down we must reset any existing
+ // timers to use the new value. Otherwise we run the risk of executing
+ // timer callbacks out-of-order.
+ ResetTimersForThrottleReduction(oldBackPressureDelayMS);
+ }
+
+ // If all of the back pressure delay has been removed then we no longer need
+ // to check back pressure updates. We can simply return without scheduling
+ // another update runnable.
+ if (!mBackPressureDelayMS) {
+ return;
+ }
+
+ // Otherwise, if there is a back pressure delay still in effect we need
+ // queue a runnable to check if it can be reduced in the future. Note
+ // that this runnable is dispatched to the ThrottledEventQueue. This
+ // means we will not check for a new value until the current back log
+ // has been processed. The next update will only keep back pressure if
+ // more runnables continue to be dispatched to the queue.
+ nsCOMPtr<nsIRunnable> r =
+ NewRunnableMethod(this, &nsGlobalWindow::CancelOrUpdateBackPressure);
+ MOZ_ALWAYS_SUCCEEDS(queue->Dispatch(r.forget(), NS_DISPATCH_NORMAL));
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsIScriptObjectPrincipal
+//*****************************************************************************
+
+nsIPrincipal*
+nsGlobalWindow::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;
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsIDOMWindow
+//*****************************************************************************
+
+template <class T>
+nsIURI*
+nsPIDOMWindow<T>::GetDocumentURI() const
+{
+ return mDoc ? mDoc->GetDocumentURI() : mDocumentURI.get();
+}
+
+template <class T>
+nsIURI*
+nsPIDOMWindow<T>::GetDocBaseURI() const
+{
+ return mDoc ? mDoc->GetDocBaseURI() : mDocBaseURI.get();
+}
+
+template <class T>
+void
+nsPIDOMWindow<T>::MaybeCreateDoc()
+{
+ 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<nsIDocument> document = docShell->GetDocument();
+ Unused << document;
+ }
+}
+
+void
+nsPIDOMWindowOuter::SetInitialKeyboardIndicators(
+ UIStateChangeType aShowAccelerators, UIStateChangeType aShowFocusRings)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(!GetCurrentInnerWindow());
+
+ nsPIDOMWindowOuter* piWin = GetPrivateRoot();
+ if (!piWin) {
+ return;
+ }
+
+ MOZ_ASSERT(piWin == AsOuter());
+
+ // only change the flags that have been modified
+ nsCOMPtr<nsPIWindowRoot> windowRoot = do_QueryInterface(mChromeEventHandler);
+ if (!windowRoot) {
+ return;
+ }
+
+ if (aShowAccelerators != UIStateChangeType_NoChange) {
+ windowRoot->SetShowAccelerators(aShowAccelerators == UIStateChangeType_Set);
+ }
+ if (aShowFocusRings != UIStateChangeType_NoChange) {
+ windowRoot->SetShowFocusRings(aShowFocusRings == UIStateChangeType_Set);
+ }
+
+ nsContentUtils::SetKeyboardIndicatorsOnRemoteChildren(GetOuterWindow(),
+ aShowAccelerators,
+ aShowFocusRings);
+}
+
+Element*
+nsPIDOMWindowOuter::GetFrameElementInternal() const
+{
+ MOZ_ASSERT(IsOuterWindow());
+ return mFrameElement;
+}
+
+void
+nsPIDOMWindowOuter::SetFrameElementInternal(Element* aFrameElement)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ mFrameElement = aFrameElement;
+}
+
+bool
+nsPIDOMWindowInner::AddAudioContext(AudioContext* aAudioContext)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ 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)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ mAudioContexts.RemoveElement(aAudioContext);
+}
+
+void
+nsPIDOMWindowInner::MuteAudioContexts()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
+ if (!mAudioContexts[i]->IsOffline()) {
+ mAudioContexts[i]->Mute();
+ }
+ }
+}
+
+void
+nsPIDOMWindowInner::UnmuteAudioContexts()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
+ if (!mAudioContexts[i]->IsOffline()) {
+ mAudioContexts[i]->Unmute();
+ }
+ }
+}
+
+nsGlobalWindow*
+nsGlobalWindow::Window()
+{
+ return this;
+}
+
+nsGlobalWindow*
+nsGlobalWindow::Self()
+{
+ return this;
+}
+
+Navigator*
+nsGlobalWindow::GetNavigator(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mNavigator) {
+ mNavigator = new Navigator(AsInner());
+ }
+
+ return mNavigator;
+}
+
+nsIDOMNavigator*
+nsGlobalWindow::GetNavigator()
+{
+ FORWARD_TO_INNER(GetNavigator, (), nullptr);
+
+ ErrorResult dummy;
+ nsIDOMNavigator* navigator = GetNavigator(dummy);
+ dummy.SuppressException();
+ return navigator;
+}
+
+nsScreen*
+nsGlobalWindow::GetScreen(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mScreen) {
+ mScreen = nsScreen::Create(AsInner());
+ if (!mScreen) {
+ aError.Throw(NS_ERROR_UNEXPECTED);
+ return nullptr;
+ }
+ }
+
+ return mScreen;
+}
+
+nsIDOMScreen*
+nsGlobalWindow::GetScreen()
+{
+ FORWARD_TO_INNER(GetScreen, (), nullptr);
+
+ ErrorResult dummy;
+ nsIDOMScreen* screen = GetScreen(dummy);
+ dummy.SuppressException();
+ return screen;
+}
+
+nsHistory*
+nsGlobalWindow::GetHistory(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mHistory) {
+ mHistory = new nsHistory(AsInner());
+ }
+
+ return mHistory;
+}
+
+CustomElementRegistry*
+nsGlobalWindow::CustomElements()
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+ if (!mCustomElements) {
+ mCustomElements = CustomElementRegistry::Create(AsInner());
+ }
+
+ return mCustomElements;
+}
+
+Performance*
+nsPIDOMWindowInner::GetPerformance()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ CreatePerformanceObjectIfNeeded();
+ return mPerformance;
+}
+
+Performance*
+nsGlobalWindow::GetPerformance()
+{
+ return AsInner()->GetPerformance();
+}
+
+void
+nsPIDOMWindowInner::CreatePerformanceObjectIfNeeded()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ 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) {
+ // If we are dealing with an iframe, we will need the parent's performance
+ // object (so we can add the iframe as a resource of that page).
+ Performance* parentPerformance = nullptr;
+ nsCOMPtr<nsPIDOMWindowOuter> parentWindow = GetScriptableParentOrNull();
+ if (parentWindow) {
+ nsPIDOMWindowInner* parentInnerWindow = nullptr;
+ if (parentWindow) {
+ parentInnerWindow = parentWindow->GetCurrentInnerWindow();
+ }
+ if (parentInnerWindow) {
+ parentPerformance = parentInnerWindow->GetPerformance();
+ }
+ }
+ mPerformance =
+ Performance::CreateForMainThread(this, timing, timedChannel,
+ parentPerformance);
+ }
+}
+
+bool
+nsPIDOMWindowInner::IsSecureContext() const
+{
+ return nsGlobalWindow::Cast(this)->IsSecureContext();
+}
+
+bool
+nsPIDOMWindowInner::IsSecureContextIfOpenerIgnored() const
+{
+ return nsGlobalWindow::Cast(this)->IsSecureContextIfOpenerIgnored();
+}
+
+void
+nsPIDOMWindowInner::Suspend()
+{
+ nsGlobalWindow::Cast(this)->Suspend();
+}
+
+void
+nsPIDOMWindowInner::Resume()
+{
+ nsGlobalWindow::Cast(this)->Resume();
+}
+
+void
+nsPIDOMWindowInner::Freeze()
+{
+ nsGlobalWindow::Cast(this)->Freeze();
+}
+
+void
+nsPIDOMWindowInner::Thaw()
+{
+ nsGlobalWindow::Cast(this)->Thaw();
+}
+
+void
+nsPIDOMWindowInner::SyncStateFromParentWindow()
+{
+ nsGlobalWindow::Cast(this)->SyncStateFromParentWindow();
+}
+
+SuspendTypes
+nsPIDOMWindowOuter::GetMediaSuspend() const
+{
+ if (IsInnerWindow()) {
+ return mOuterWindow->GetMediaSuspend();
+ }
+
+ return mMediaSuspend;
+}
+
+void
+nsPIDOMWindowOuter::SetMediaSuspend(SuspendTypes aSuspend)
+{
+ if (IsInnerWindow()) {
+ mOuterWindow->SetMediaSuspend(aSuspend);
+ return;
+ }
+
+ if (!IsDisposableSuspend(aSuspend)) {
+ mMediaSuspend = aSuspend;
+ }
+
+ RefreshMediaElementsSuspend(aSuspend);
+}
+
+bool
+nsPIDOMWindowOuter::GetAudioMuted() const
+{
+ if (IsInnerWindow()) {
+ return mOuterWindow->GetAudioMuted();
+ }
+
+ return mAudioMuted;
+}
+
+void
+nsPIDOMWindowOuter::SetAudioMuted(bool aMuted)
+{
+ if (IsInnerWindow()) {
+ mOuterWindow->SetAudioMuted(aMuted);
+ return;
+ }
+
+ if (mAudioMuted == aMuted) {
+ return;
+ }
+
+ mAudioMuted = aMuted;
+ RefreshMediaElementsVolume();
+}
+
+float
+nsPIDOMWindowOuter::GetAudioVolume() const
+{
+ if (IsInnerWindow()) {
+ return mOuterWindow->GetAudioVolume();
+ }
+
+ return mAudioVolume;
+}
+
+nsresult
+nsPIDOMWindowOuter::SetAudioVolume(float aVolume)
+{
+ if (IsInnerWindow()) {
+ return mOuterWindow->SetAudioVolume(aVolume);
+ }
+
+ if (aVolume < 0.0) {
+ return NS_ERROR_DOM_INDEX_SIZE_ERR;
+ }
+
+ if (mAudioVolume == aVolume) {
+ return NS_OK;
+ }
+
+ mAudioVolume = aVolume;
+ RefreshMediaElementsVolume();
+ return NS_OK;
+}
+
+void
+nsPIDOMWindowOuter::RefreshMediaElementsVolume()
+{
+ RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
+ if (service) {
+ service->RefreshAgentsVolume(GetOuterWindow());
+ }
+}
+
+void
+nsPIDOMWindowOuter::RefreshMediaElementsSuspend(SuspendTypes aSuspend)
+{
+ RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
+ if (service) {
+ service->RefreshAgentsSuspend(GetOuterWindow(), aSuspend);
+ }
+}
+
+bool
+nsPIDOMWindowOuter::IsDisposableSuspend(SuspendTypes aSuspend) const
+{
+ return (aSuspend == nsISuspendedTypes::SUSPENDED_PAUSE_DISPOSABLE ||
+ aSuspend == nsISuspendedTypes::SUSPENDED_STOP_DISPOSABLE);
+}
+
+void
+nsPIDOMWindowOuter::SetServiceWorkersTestingEnabled(bool aEnabled)
+{
+ // Devtools should only be setting this on the top level window. Its
+ // ok if devtools clears the flag on clean up of nested windows, though.
+ // It will have no affect.
+#ifdef DEBUG
+ nsCOMPtr<nsPIDOMWindowOuter> topWindow = GetScriptableTop();
+ MOZ_ASSERT_IF(aEnabled, this == topWindow);
+#endif
+ mServiceWorkersTestingEnabled = aEnabled;
+}
+
+bool
+nsPIDOMWindowOuter::GetServiceWorkersTestingEnabled()
+{
+ // Automatically get this setting from the top level window so that nested
+ // iframes get the correct devtools setting.
+ nsCOMPtr<nsPIDOMWindowOuter> topWindow = GetScriptableTop();
+ if (!topWindow) {
+ return false;
+ }
+ return topWindow->mServiceWorkersTestingEnabled;
+}
+
+bool
+nsPIDOMWindowInner::GetAudioCaptured() const
+{
+ MOZ_ASSERT(IsInnerWindow());
+ return mAudioCaptured;
+}
+
+nsresult
+nsPIDOMWindowInner::SetAudioCapture(bool aCapture)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ mAudioCaptured = aCapture;
+
+ RefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
+ if (service) {
+ service->SetWindowAudioCaptured(GetOuterWindow(), mWindowID, aCapture);
+ }
+
+ return NS_OK;
+}
+
+// nsISpeechSynthesisGetter
+
+#ifdef MOZ_WEBSPEECH
+SpeechSynthesis*
+nsGlobalWindow::GetSpeechSynthesis(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mSpeechSynthesis) {
+ mSpeechSynthesis = new SpeechSynthesis(AsInner());
+ }
+
+ return mSpeechSynthesis;
+}
+
+bool
+nsGlobalWindow::HasActiveSpeechSynthesis()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (mSpeechSynthesis) {
+ return !mSpeechSynthesis->HasEmptyQueue();
+ }
+
+ return false;
+}
+
+#endif
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetParentOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> parent;
+ if (mDocShell->GetIsMozBrowserOrApp()) {
+ parent = AsOuter();
+ } else {
+ parent = GetParent();
+ }
+
+ return parent.forget();
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::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*
+nsGlobalWindow::GetScriptableParent()
+{
+ FORWARD_TO_OUTER(GetScriptableParent, (), nullptr);
+
+ nsCOMPtr<nsPIDOMWindowOuter> parent = GetParentOuter();
+ return parent.get();
+}
+
+/**
+ * Behavies identically to GetScriptableParent extept that it returns null
+ * if GetScriptableParent would return this window.
+ */
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetScriptableParentOrNull()
+{
+ FORWARD_TO_OUTER(GetScriptableParentOrNull, (), nullptr);
+
+ nsPIDOMWindowOuter* parent = GetScriptableParent();
+ return (Cast(parent) == this) ? nullptr : parent;
+}
+
+/**
+ * nsPIDOMWindow::GetParent (when called from C++) is just a wrapper around
+ * GetRealParent.
+ */
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetParent()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDocShell> parent;
+ mDocShell->GetSameTypeParentIgnoreBrowserAndAppBoundaries(getter_AddRefs(parent));
+
+ if (parent) {
+ nsCOMPtr<nsPIDOMWindowOuter> win = parent->GetWindow();
+ return win.forget();
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> win(AsOuter());
+ return win.forget();
+}
+
+static nsresult
+GetTopImpl(nsGlobalWindow* aWin, nsPIDOMWindowOuter** aTop, bool aScriptable)
+{
+ *aTop = nullptr;
+
+ // Walk up the parent chain.
+
+ nsCOMPtr<nsPIDOMWindowOuter> prevParent = aWin->AsOuter();
+ nsCOMPtr<nsPIDOMWindowOuter> parent = aWin->AsOuter();
+ do {
+ if (!parent) {
+ break;
+ }
+
+ prevParent = parent;
+
+ nsCOMPtr<nsPIDOMWindowOuter> newParent;
+ if (aScriptable) {
+ newParent = parent->GetScriptableParent();
+ }
+ else {
+ newParent = parent->GetParent();
+ }
+
+ parent = newParent;
+
+ } while (parent != prevParent);
+
+ if (parent) {
+ parent.swap(*aTop);
+ }
+
+ return NS_OK;
+}
+
+/**
+ * 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*
+nsGlobalWindow::GetScriptableTop()
+{
+ FORWARD_TO_OUTER(GetScriptableTop, (), nullptr);
+ nsCOMPtr<nsPIDOMWindowOuter> window;
+ GetTopImpl(this, getter_AddRefs(window), /* aScriptable = */ true);
+ return window.get();
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetTop()
+{
+ MOZ_ASSERT(IsOuterWindow());
+ nsCOMPtr<nsPIDOMWindowOuter> window;
+ GetTopImpl(this, getter_AddRefs(window), /* aScriptable = */ false);
+ return window.forget();
+}
+
+void
+nsGlobalWindow::GetContentOuter(JSContext* aCx,
+ JS::MutableHandle<JSObject*> aRetval,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsPIDOMWindowOuter> content =
+ GetContentInternal(aError, !nsContentUtils::IsCallerChrome());
+ if (aError.Failed()) {
+ return;
+ }
+
+ if (content) {
+ JS::Rooted<JS::Value> val(aCx);
+ aError = nsContentUtils::WrapNative(aCx, content, &val);
+ if (aError.Failed()) {
+ return;
+ }
+
+ aRetval.set(&val.toObject());
+ return;
+ }
+
+ aRetval.set(nullptr);
+ return;
+}
+
+void
+nsGlobalWindow::GetContent(JSContext* aCx,
+ JS::MutableHandle<JSObject*> aRetval,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetContentOuter, (aCx, aRetval, aError), aError, );
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetContentInternal(ErrorResult& aError, bool aUnprivilegedCaller)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // First check for a named frame named "content"
+ nsCOMPtr<nsPIDOMWindowOuter> domWindow =
+ GetChildWindow(NS_LITERAL_STRING("content"));
+ if (domWindow) {
+ return domWindow.forget();
+ }
+
+ // If we're contained in <iframe mozbrowser> or <iframe mozapp>, then
+ // GetContent is the same as window.top.
+ if (mDocShell && mDocShell->GetIsInMozBrowserOrApp()) {
+ return GetTopOuter();
+ }
+
+ nsCOMPtr<nsIDocShellTreeItem> primaryContent;
+ if (aUnprivilegedCaller) {
+ // If we're called by non-chrome code, make sure we don't return
+ // the primary content window if the calling tab is hidden. In
+ // such a case we return the same-type root in the hidden tab,
+ // which is "good enough", for now.
+ nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(mDocShell));
+
+ if (baseWin) {
+ bool visible = false;
+ baseWin->GetVisibility(&visible);
+
+ if (!visible) {
+ mDocShell->GetSameTypeRootTreeItem(getter_AddRefs(primaryContent));
+ }
+ }
+ }
+
+ if (!primaryContent) {
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner = GetTreeOwner();
+ if (!treeOwner) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return nullptr;
+ }
+
+ treeOwner->GetPrimaryContentShell(getter_AddRefs(primaryContent));
+ }
+
+ if (!primaryContent) {
+ return nullptr;
+ }
+
+ domWindow = primaryContent->GetWindow();
+ return domWindow.forget();
+}
+
+MozSelfSupport*
+nsGlobalWindow::GetMozSelfSupport(ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (mMozSelfSupport) {
+ return mMozSelfSupport;
+ }
+
+ // We're called from JS and want to use out existing JSContext (and,
+ // importantly, its compartment!) here.
+ AutoJSContext cx;
+ GlobalObject global(cx, FastGetGlobalJSObject());
+ mMozSelfSupport = MozSelfSupport::Constructor(global, cx, aError);
+ return mMozSelfSupport;
+}
+
+nsresult
+nsGlobalWindow::GetScriptableContent(JSContext* aCx, JS::MutableHandle<JS::Value> aVal)
+{
+ ErrorResult rv;
+ JS::Rooted<JSObject*> content(aCx);
+ GetContent(aCx, &content, rv);
+ if (!rv.Failed()) {
+ aVal.setObjectOrNull(content);
+ }
+
+ return rv.StealNSResult();
+}
+
+nsresult
+nsGlobalWindow::GetPrompter(nsIPrompt** aPrompt)
+{
+ if (IsInnerWindow()) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer) {
+ NS_WARNING("No outer window available!");
+ return NS_ERROR_NOT_INITIALIZED;
+ }
+ return outer->GetPrompter(aPrompt);
+ }
+
+ if (!mDocShell)
+ return NS_ERROR_FAILURE;
+
+ nsCOMPtr<nsIPrompt> prompter(do_GetInterface(mDocShell));
+ NS_ENSURE_TRUE(prompter, NS_ERROR_NO_INTERFACE);
+
+ prompter.forget(aPrompt);
+ return NS_OK;
+}
+
+BarProp*
+nsGlobalWindow::GetMenubar(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mMenubar) {
+ mMenubar = new MenubarProp(this);
+ }
+
+ return mMenubar;
+}
+
+BarProp*
+nsGlobalWindow::GetToolbar(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mToolbar) {
+ mToolbar = new ToolbarProp(this);
+ }
+
+ return mToolbar;
+}
+
+BarProp*
+nsGlobalWindow::GetLocationbar(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mLocationbar) {
+ mLocationbar = new LocationbarProp(this);
+ }
+ return mLocationbar;
+}
+
+BarProp*
+nsGlobalWindow::GetPersonalbar(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mPersonalbar) {
+ mPersonalbar = new PersonalbarProp(this);
+ }
+ return mPersonalbar;
+}
+
+BarProp*
+nsGlobalWindow::GetStatusbar(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mStatusbar) {
+ mStatusbar = new StatusbarProp(this);
+ }
+ return mStatusbar;
+}
+
+BarProp*
+nsGlobalWindow::GetScrollbars(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mScrollbars) {
+ mScrollbars = new ScrollbarsProp(this);
+ }
+
+ return mScrollbars;
+}
+
+bool
+nsGlobalWindow::GetClosedOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ // If someone called close(), or if we don't have a docshell, we're closed.
+ return mIsClosed || !mDocShell;
+}
+
+bool
+nsGlobalWindow::GetClosed(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetClosedOuter, (), aError, false);
+}
+
+bool
+nsGlobalWindow::Closed()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ return GetClosedOuter();
+}
+
+nsDOMWindowList*
+nsGlobalWindow::GetWindowList()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!mFrames && mDocShell) {
+ mFrames = new nsDOMWindowList(mDocShell);
+ }
+
+ return mFrames;
+}
+
+already_AddRefed<nsIDOMWindowCollection>
+nsGlobalWindow::GetFrames()
+{
+ FORWARD_TO_OUTER(GetFrames, (), nullptr);
+
+ nsCOMPtr<nsIDOMWindowCollection> frames = GetWindowList();
+ return frames.forget();
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::IndexedGetterOuter(uint32_t aIndex)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsDOMWindowList* windows = GetWindowList();
+ NS_ENSURE_TRUE(windows, nullptr);
+
+ return windows->IndexedGetter(aIndex);
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::IndexedGetter(uint32_t aIndex)
+{
+ FORWARD_TO_OUTER(IndexedGetterOuter, (aIndex), nullptr);
+ MOZ_CRASH();
+}
+
+bool
+nsGlobalWindow::DoResolve(JSContext* aCx, JS::Handle<JSObject*> aObj,
+ JS::Handle<jsid> aId,
+ JS::MutableHandle<JS::PropertyDescriptor> aDesc)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ // 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;
+ }
+
+ nsresult rv = nsWindowSH::GlobalResolve(this, aCx, aObj, aId, aDesc);
+ if (NS_FAILED(rv)) {
+ return Throw(aCx, rv);
+ }
+
+ return true;
+}
+
+/* static */
+bool
+nsGlobalWindow::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 == XPCJSContext::Get()->GetStringID(XPCJSContext::IDX_COMPONENTS)) {
+ return true;
+ }
+
+ if (aId == XPCJSContext::Get()->GetStringID(XPCJSContext::IDX_CONTROLLERS)) {
+ // We only resolve .controllers in release builds and on non-chrome windows,
+ // but let's not worry about any of that stuff.
+ return true;
+ }
+
+ if (WebIDLGlobalNameHash::MayResolve(aId)) {
+ return true;
+ }
+
+ nsScriptNameSpaceManager *nameSpaceManager = PeekNameSpaceManager();
+ if (!nameSpaceManager) {
+ // Really shouldn't happen. Fail safe.
+ return true;
+ }
+
+ nsAutoString name;
+ AssignJSFlatString(name, JSID_TO_FLAT_STRING(aId));
+
+ return nameSpaceManager->LookupName(name);
+}
+
+void
+nsGlobalWindow::GetOwnPropertyNames(JSContext* aCx, nsTArray<nsString>& aNames,
+ ErrorResult& aRv)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ // "Components" is marked as enumerable but only resolved on demand :-/.
+ //aNames.AppendElement(NS_LITERAL_STRING("Components"));
+
+ nsScriptNameSpaceManager* nameSpaceManager = GetNameSpaceManager();
+ if (nameSpaceManager) {
+ JS::Rooted<JSObject*> wrapper(aCx, GetWrapper());
+
+ WebIDLGlobalNameHash::GetNames(aCx, wrapper, aNames);
+
+ for (auto i = nameSpaceManager->GlobalNameIter(); !i.Done(); i.Next()) {
+ const GlobalNameMapEntry* entry = i.Get();
+ if (nsWindowSH::NameStructEnabled(aCx, this, entry->mKey,
+ entry->mGlobalName)) {
+ aNames.AppendElement(entry->mKey);
+ }
+ }
+ }
+}
+
+/* static */ bool
+nsGlobalWindow::IsPrivilegedChromeWindow(JSContext* aCx, JSObject* aObj)
+{
+ // For now, have to deal with XPConnect objects here.
+ return xpc::WindowOrNull(aObj)->IsChromeWindow() &&
+ nsContentUtils::ObjectPrincipal(aObj) == nsContentUtils::GetSystemPrincipal();
+}
+
+/* static */ bool
+nsGlobalWindow::IsShowModalDialogEnabled(JSContext*, JSObject*)
+{
+ static bool sAddedPrefCache = false;
+ static bool sIsDisabled;
+ static const char sShowModalDialogPref[] = "dom.disable_window_showModalDialog";
+
+ if (!sAddedPrefCache) {
+ Preferences::AddBoolVarCache(&sIsDisabled, sShowModalDialogPref, false);
+ sAddedPrefCache = true;
+ }
+
+ return !sIsDisabled && !XRE_IsContentProcess();
+}
+
+nsIDOMOfflineResourceList*
+nsGlobalWindow::GetApplicationCache(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ 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(),
+ AsInner());
+
+ applicationCache->Init();
+
+ mApplicationCache = applicationCache;
+ }
+
+ return mApplicationCache;
+}
+
+already_AddRefed<nsIDOMOfflineResourceList>
+nsGlobalWindow::GetApplicationCache()
+{
+ FORWARD_TO_INNER(GetApplicationCache, (), nullptr);
+
+ ErrorResult dummy;
+ nsCOMPtr<nsIDOMOfflineResourceList> applicationCache =
+ GetApplicationCache(dummy);
+ dummy.SuppressException();
+ return applicationCache.forget();
+}
+
+Crypto*
+nsGlobalWindow::GetCrypto(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mCrypto) {
+ mCrypto = new Crypto();
+ mCrypto->Init(this);
+ }
+ return mCrypto;
+}
+
+mozilla::dom::U2F*
+nsGlobalWindow::GetU2f(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mU2F) {
+ RefPtr<U2F> u2f = new U2F();
+ u2f->Init(AsInner(), aError);
+ if (NS_WARN_IF(aError.Failed())) {
+ return nullptr;
+ }
+
+ mU2F = u2f;
+ }
+ return mU2F;
+}
+
+nsIControllers*
+nsGlobalWindow::GetControllersOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mControllers) {
+ nsresult rv;
+ mControllers = do_CreateInstance(kXULControllersCID, &rv);
+ if (NS_FAILED(rv)) {
+ aError.Throw(rv);
+ return nullptr;
+ }
+
+ // Add in the default controller
+ nsCOMPtr<nsIController> controller = do_CreateInstance(
+ NS_WINDOWCONTROLLER_CONTRACTID, &rv);
+ if (NS_FAILED(rv)) {
+ aError.Throw(rv);
+ return nullptr;
+ }
+
+ mControllers->InsertControllerAt(0, controller);
+ nsCOMPtr<nsIControllerContext> controllerContext = do_QueryInterface(controller);
+ if (!controllerContext) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return nullptr;
+ }
+
+ controllerContext->SetCommandContext(static_cast<nsIDOMWindow*>(this));
+ }
+
+ return mControllers;
+}
+
+nsIControllers*
+nsGlobalWindow::GetControllers(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetControllersOuter, (aError), aError, nullptr);
+}
+
+nsresult
+nsGlobalWindow::GetControllers(nsIControllers** aResult)
+{
+ FORWARD_TO_INNER(GetControllers, (aResult), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ nsCOMPtr<nsIControllers> controllers = GetControllers(rv);
+ controllers.forget(aResult);
+
+ return rv.StealNSResult();
+}
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetSanitizedOpener(nsPIDOMWindowOuter* aOpener)
+{
+ if (!aOpener) {
+ return nullptr;
+ }
+
+ nsGlobalWindow* win = nsGlobalWindow::Cast(aOpener);
+
+ // First, ensure that we're not handing back a chrome window to content:
+ if (win->IsChromeWindow()) {
+ return nullptr;
+ }
+
+ // We don't want to reveal the opener if the opener is a mail window,
+ // because opener can be used to spoof the contents of a message (bug 105050).
+ // So, we look in the opener's root docshell to see if it's a mail window.
+ nsCOMPtr<nsIDocShell> openerDocShell = aOpener->GetDocShell();
+
+ if (openerDocShell) {
+ nsCOMPtr<nsIDocShellTreeItem> openerRootItem;
+ openerDocShell->GetRootTreeItem(getter_AddRefs(openerRootItem));
+ nsCOMPtr<nsIDocShell> openerRootDocShell(do_QueryInterface(openerRootItem));
+ if (openerRootDocShell) {
+ uint32_t appType;
+ nsresult rv = openerRootDocShell->GetAppType(&appType);
+ if (NS_SUCCEEDED(rv) && appType != nsIDocShell::APP_TYPE_MAIL) {
+ return aOpener;
+ }
+ }
+ }
+
+ return nullptr;
+}
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetOpenerWindowOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsPIDOMWindowOuter> opener = do_QueryReferent(mOpener);
+
+ if (!opener) {
+ return nullptr;
+ }
+
+ // First, check if we were called from a privileged chrome script
+ if (nsContentUtils::LegacyIsCallerChromeOrNativeCode()) {
+ // Catch the case where we're chrome but the opener is not...
+ if (GetPrincipal() == nsContentUtils::GetSystemPrincipal() &&
+ nsGlobalWindow::Cast(opener)->GetPrincipal() != nsContentUtils::GetSystemPrincipal()) {
+ return nullptr;
+ }
+ return opener;
+ }
+
+ return GetSanitizedOpener(opener);
+}
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetOpenerWindow(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetOpenerWindowOuter, (), aError, nullptr);
+}
+
+void
+nsGlobalWindow::GetOpener(JSContext* aCx, JS::MutableHandle<JS::Value> aRetval,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsPIDOMWindowOuter> opener = GetOpenerWindow(aError);
+ if (aError.Failed() || !opener) {
+ aRetval.setNull();
+ return;
+ }
+
+ aError = nsContentUtils::WrapNative(aCx, opener, aRetval);
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetOpener()
+{
+ FORWARD_TO_OUTER(GetOpener, (), nullptr);
+
+ nsCOMPtr<nsPIDOMWindowOuter> opener = GetOpenerWindowOuter();
+ return opener.forget();
+}
+
+void
+nsGlobalWindow::SetOpener(JSContext* aCx, JS::Handle<JS::Value> aOpener,
+ ErrorResult& aError)
+{
+ // Check if we were called from a privileged chrome script. If not, and if
+ // aOpener is not null, 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.
+ if (!aOpener.isNull() && !nsContentUtils::IsCallerChrome()) {
+ RedefineProperty(aCx, "opener", aOpener, aError);
+ return;
+ }
+
+ if (!aOpener.isObjectOrNull()) {
+ // Chrome code trying to set some random value as opener
+ aError.Throw(NS_ERROR_INVALID_ARG);
+ return;
+ }
+
+ nsPIDOMWindowInner* win = nullptr;
+ if (aOpener.isObject()) {
+ JSObject* unwrapped = js::CheckedUnwrap(&aOpener.toObject(),
+ /* stopAtWindowProxy = */ false);
+ if (!unwrapped) {
+ aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
+ return;
+ }
+
+ auto* globalWindow = xpc::WindowOrNull(unwrapped);
+ if (!globalWindow) {
+ // Wasn't a window
+ aError.Throw(NS_ERROR_INVALID_ARG);
+ return;
+ }
+
+ win = globalWindow->AsInner();
+ }
+
+ nsPIDOMWindowOuter* outer = nullptr;
+ if (win) {
+ if (!win->IsCurrentInnerWindow()) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+ outer = win->GetOuterWindow();
+ }
+
+ SetOpenerWindow(outer, false);
+}
+
+void
+nsGlobalWindow::GetStatusOuter(nsAString& aStatus)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ aStatus = mStatus;
+}
+
+void
+nsGlobalWindow::GetStatus(nsAString& aStatus, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetStatusOuter, (aStatus), aError, );
+}
+
+void
+nsGlobalWindow::SetStatusOuter(const nsAString& aStatus)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ mStatus = aStatus;
+
+ /*
+ * If caller is not chrome and dom.disable_window_status_change is true,
+ * prevent propagating window.status to the UI by exiting early
+ */
+
+ if (!CanSetProperty("dom.disable_window_status_change")) {
+ return;
+ }
+
+ nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetWebBrowserChrome();
+ if (browserChrome) {
+ browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_SCRIPT,
+ PromiseFlatString(aStatus).get());
+ }
+}
+
+void
+nsGlobalWindow::SetStatus(const nsAString& aStatus, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetStatusOuter, (aStatus), aError, );
+}
+
+void
+nsGlobalWindow::GetNameOuter(nsAString& aName)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (mDocShell) {
+ mDocShell->GetName(aName);
+ }
+}
+
+void
+nsGlobalWindow::GetName(nsAString& aName, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetNameOuter, (aName), aError, );
+}
+
+void
+nsGlobalWindow::SetNameOuter(const nsAString& aName, mozilla::ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (mDocShell) {
+ aError = mDocShell->SetName(aName);
+ }
+}
+
+void
+nsGlobalWindow::SetName(const nsAString& aName, mozilla::ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetNameOuter, (aName, aError), aError, );
+}
+
+// Helper functions used by many methods below.
+int32_t
+nsGlobalWindow::DevToCSSIntPixels(int32_t px)
+{
+ if (!mDocShell)
+ return px; // assume 1:1
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (!presContext)
+ return px;
+
+ return presContext->DevPixelsToIntCSSPixels(px);
+}
+
+int32_t
+nsGlobalWindow::CSSToDevIntPixels(int32_t px)
+{
+ if (!mDocShell)
+ return px; // assume 1:1
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (!presContext)
+ return px;
+
+ return presContext->CSSPixelsToDevPixels(px);
+}
+
+nsIntSize
+nsGlobalWindow::DevToCSSIntPixels(nsIntSize px)
+{
+ if (!mDocShell)
+ return px; // assume 1:1
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (!presContext)
+ return px;
+
+ return nsIntSize(
+ presContext->DevPixelsToIntCSSPixels(px.width),
+ presContext->DevPixelsToIntCSSPixels(px.height));
+}
+
+nsIntSize
+nsGlobalWindow::CSSToDevIntPixels(nsIntSize px)
+{
+ if (!mDocShell)
+ return px; // assume 1:1
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (!presContext)
+ return px;
+
+ return nsIntSize(
+ presContext->CSSPixelsToDevPixels(px.width),
+ presContext->CSSPixelsToDevPixels(px.height));
+}
+
+nsresult
+nsGlobalWindow::GetInnerSize(CSSIntSize& aSize)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ EnsureSizeUpToDate();
+
+ NS_ENSURE_STATE(mDocShell);
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ RefPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+
+ if (!presContext || !presShell) {
+ aSize = CSSIntSize(0, 0);
+ return NS_OK;
+ }
+
+ /*
+ * On platforms with resolution-based zooming, the CSS viewport
+ * and visual viewport may not be the same. The inner size should
+ * be the visual viewport, but we fall back to the CSS viewport
+ * if it is not set.
+ */
+ if (presShell->IsScrollPositionClampingScrollPortSizeSet()) {
+ aSize = CSSIntRect::FromAppUnitsRounded(
+ presShell->GetScrollPositionClampingScrollPortSize());
+ } else {
+ RefPtr<nsViewManager> viewManager = presShell->GetViewManager();
+ if (viewManager) {
+ viewManager->FlushDelayedResize(false);
+ }
+
+ aSize = CSSIntRect::FromAppUnitsRounded(
+ presContext->GetVisibleArea().Size());
+ }
+ return NS_OK;
+}
+
+int32_t
+nsGlobalWindow::GetInnerWidthOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ CSSIntSize size;
+ aError = GetInnerSize(size);
+ return size.width;
+}
+
+int32_t
+nsGlobalWindow::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 nsGlobalWindow::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
+nsGlobalWindow::GetInnerWidth(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ GetReplaceableWindowCoord(aCx, &nsGlobalWindow::GetInnerWidth, aValue,
+ aCallerType, aError);
+}
+
+nsresult
+nsGlobalWindow::GetInnerWidth(int32_t* aInnerWidth)
+{
+ FORWARD_TO_INNER(GetInnerWidth, (aInnerWidth), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ // Callee doesn't care about the caller type, but play it safe.
+ *aInnerWidth = GetInnerWidth(CallerType::NonSystem, rv);
+
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::SetInnerWidthOuter(int32_t aInnerWidth, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ aError.Throw(NS_ERROR_UNEXPECTED);
+ return;
+ }
+
+ CheckSecurityWidthAndHeight(&aInnerWidth, nullptr, aCallerIsChrome);
+
+ RefPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+
+ if (presShell && presShell->GetIsViewportOverridden())
+ {
+ nscoord height = 0;
+
+ RefPtr<nsPresContext> presContext;
+ presContext = presShell->GetPresContext();
+
+ nsRect shellArea = presContext->GetVisibleArea();
+ height = shellArea.height;
+ SetCSSViewportWidthAndHeight(nsPresContext::CSSPixelsToAppUnits(aInnerWidth),
+ height);
+ return;
+ }
+
+ int32_t height = 0;
+ int32_t unused = 0;
+
+ nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(mDocShell));
+ docShellAsWin->GetSize(&unused, &height);
+ aError = SetDocShellWidthAndHeight(CSSToDevIntPixels(aInnerWidth), height);
+}
+
+void
+nsGlobalWindow::SetInnerWidth(int32_t aInnerWidth, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetInnerWidthOuter, (aInnerWidth, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SetInnerWidth(JSContext* aCx, JS::Handle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ SetReplaceableWindowCoord(aCx, &nsGlobalWindow::SetInnerWidth,
+ aValue, "innerWidth", aError);
+}
+
+int32_t
+nsGlobalWindow::GetInnerHeightOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ CSSIntSize size;
+ aError = GetInnerSize(size);
+ return size.height;
+}
+
+int32_t
+nsGlobalWindow::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 nsGlobalWindow::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
+nsGlobalWindow::GetInnerHeight(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ GetReplaceableWindowCoord(aCx, &nsGlobalWindow::GetInnerHeight, aValue,
+ aCallerType, aError);
+}
+
+nsresult
+nsGlobalWindow::GetInnerHeight(int32_t* aInnerHeight)
+{
+ FORWARD_TO_INNER(GetInnerHeight, (aInnerHeight), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ // Callee doesn't care about the caller type, but play it safe.
+ *aInnerHeight = GetInnerHeight(CallerType::NonSystem, rv);
+
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::SetInnerHeightOuter(int32_t aInnerHeight, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ aError.Throw(NS_ERROR_UNEXPECTED);
+ return;
+ }
+
+ RefPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+
+ if (presShell && presShell->GetIsViewportOverridden())
+ {
+ RefPtr<nsPresContext> presContext;
+ presContext = presShell->GetPresContext();
+
+ nsRect shellArea = presContext->GetVisibleArea();
+ nscoord height = aInnerHeight;
+ nscoord width = shellArea.width;
+ CheckSecurityWidthAndHeight(nullptr, &height, aCallerIsChrome);
+ SetCSSViewportWidthAndHeight(width,
+ nsPresContext::CSSPixelsToAppUnits(height));
+ return;
+ }
+
+ int32_t height = 0;
+ int32_t width = 0;
+
+ nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(mDocShell));
+ docShellAsWin->GetSize(&width, &height);
+ CheckSecurityWidthAndHeight(nullptr, &aInnerHeight, aCallerIsChrome);
+ aError = SetDocShellWidthAndHeight(width, CSSToDevIntPixels(aInnerHeight));
+}
+
+void
+nsGlobalWindow::SetInnerHeight(int32_t aInnerHeight, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetInnerHeightOuter, (aInnerHeight, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SetInnerHeight(JSContext* aCx, JS::Handle<JS::Value> aValue,
+ CallerType aCallerType, ErrorResult& aError)
+{
+ SetReplaceableWindowCoord(aCx, &nsGlobalWindow::SetInnerHeight,
+ aValue, "innerHeight", aError);
+}
+
+nsIntSize
+nsGlobalWindow::GetOuterSize(CallerType aCallerType, ErrorResult& aError)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (nsContentUtils::ResistFingerprinting(aCallerType)) {
+ CSSIntSize size;
+ aError = GetInnerSize(size);
+ return nsIntSize(size.width, size.height);
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return nsIntSize(0, 0);
+ }
+
+ nsGlobalWindow* rootWindow = nsGlobalWindow::Cast(GetPrivateRoot());
+ if (rootWindow) {
+ rootWindow->FlushPendingNotifications(Flush_Layout);
+ }
+
+ nsIntSize sizeDevPixels;
+ aError = treeOwnerAsWin->GetSize(&sizeDevPixels.width, &sizeDevPixels.height);
+ if (aError.Failed()) {
+ return nsIntSize();
+ }
+
+ return DevToCSSIntPixels(sizeDevPixels);
+}
+
+int32_t
+nsGlobalWindow::GetOuterWidthOuter(CallerType aCallerType, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ return GetOuterSize(aCallerType, aError).width;
+}
+
+int32_t
+nsGlobalWindow::GetOuterWidth(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetOuterWidthOuter, (aCallerType, aError),
+ aError, 0);
+}
+
+void
+nsGlobalWindow::GetOuterWidth(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ GetReplaceableWindowCoord(aCx, &nsGlobalWindow::GetOuterWidth, aValue,
+ aCallerType, aError);
+}
+
+int32_t
+nsGlobalWindow::GetOuterHeightOuter(CallerType aCallerType, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ return GetOuterSize(aCallerType, aError).height;
+}
+
+int32_t
+nsGlobalWindow::GetOuterHeight(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetOuterHeightOuter, (aCallerType, aError),
+ aError, 0);
+}
+
+void
+nsGlobalWindow::GetOuterHeight(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ GetReplaceableWindowCoord(aCx, &nsGlobalWindow::GetOuterHeight, aValue,
+ aCallerType, aError);
+}
+
+void
+nsGlobalWindow::SetOuterSize(int32_t aLengthCSSPixels, bool aIsWidth,
+ ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ CheckSecurityWidthAndHeight(aIsWidth ? &aLengthCSSPixels : nullptr,
+ aIsWidth ? nullptr : &aLengthCSSPixels,
+ aCallerIsChrome);
+
+ int32_t width, height;
+ aError = treeOwnerAsWin->GetSize(&width, &height);
+ if (aError.Failed()) {
+ return;
+ }
+
+ int32_t lengthDevPixels = CSSToDevIntPixels(aLengthCSSPixels);
+ if (aIsWidth) {
+ width = lengthDevPixels;
+ } else {
+ height = lengthDevPixels;
+ }
+ aError = treeOwnerAsWin->SetSize(width, height, true);
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::SetOuterWidthOuter(int32_t aOuterWidth, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ SetOuterSize(aOuterWidth, true, aError, aCallerIsChrome);
+}
+
+void
+nsGlobalWindow::SetOuterWidth(int32_t aOuterWidth, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetOuterWidthOuter, (aOuterWidth, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SetOuterWidth(JSContext* aCx, JS::Handle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ SetReplaceableWindowCoord(aCx, &nsGlobalWindow::SetOuterWidth,
+ aValue, "outerWidth", aError);
+}
+
+void
+nsGlobalWindow::SetOuterHeightOuter(int32_t aOuterHeight, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ SetOuterSize(aOuterHeight, false, aError, aCallerIsChrome);
+}
+
+void
+nsGlobalWindow::SetOuterHeight(int32_t aOuterHeight, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetOuterHeightOuter, (aOuterHeight, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SetOuterHeight(JSContext* aCx, JS::Handle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ SetReplaceableWindowCoord(aCx, &nsGlobalWindow::SetOuterHeight,
+ aValue, "outerHeight", aError);
+}
+
+CSSIntPoint
+nsGlobalWindow::GetScreenXY(CallerType aCallerType, ErrorResult& aError)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // When resisting fingerprinting, always return (0,0)
+ if (nsContentUtils::ResistFingerprinting(aCallerType)) {
+ return CSSIntPoint(0, 0);
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return CSSIntPoint(0, 0);
+ }
+
+ int32_t x = 0, y = 0;
+ aError = treeOwnerAsWin->GetPosition(&x, &y); // LayoutDevice px values
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (!presContext) {
+ return CSSIntPoint(x, y);
+ }
+
+ // Find the global desktop coordinate of the top-left of the screen.
+ // We'll use this as a "fake origin" when converting to CSS px units,
+ // to avoid overlapping coordinates in cases such as a hi-dpi screen
+ // placed to the right of a lo-dpi screen on Windows. (Instead, there
+ // may be "gaps" in the resulting CSS px coordinates in some cases.)
+ nsDeviceContext *dc = presContext->DeviceContext();
+ nsRect screenRect;
+ dc->GetRect(screenRect);
+ LayoutDeviceRect screenRectDev =
+ LayoutDevicePixel::FromAppUnits(screenRect, dc->AppUnitsPerDevPixel());
+
+ DesktopToLayoutDeviceScale scale = dc->GetDesktopToDeviceScale();
+ DesktopRect screenRectDesk = screenRectDev / scale;
+
+ CSSPoint cssPt =
+ LayoutDevicePoint(x - screenRectDev.x, y - screenRectDev.y) /
+ presContext->CSSToDevPixelScale();
+ cssPt.x += screenRectDesk.x;
+ cssPt.y += screenRectDesk.y;
+
+ return CSSIntPoint(NSToIntRound(cssPt.x), NSToIntRound(cssPt.y));
+}
+
+int32_t
+nsGlobalWindow::GetScreenXOuter(CallerType aCallerType, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ return GetScreenXY(aCallerType, aError).x;
+}
+
+int32_t
+nsGlobalWindow::GetScreenX(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetScreenXOuter, (aCallerType, aError), aError, 0);
+}
+
+void
+nsGlobalWindow::GetScreenX(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ GetReplaceableWindowCoord(aCx, &nsGlobalWindow::GetScreenX, aValue,
+ aCallerType, aError);
+}
+
+nsRect
+nsGlobalWindow::GetInnerScreenRect()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return nsRect();
+ }
+
+ nsGlobalWindow* rootWindow = nsGlobalWindow::Cast(GetPrivateRoot());
+ if (rootWindow) {
+ rootWindow->FlushPendingNotifications(Flush_Layout);
+ }
+
+ if (!mDocShell) {
+ return nsRect();
+ }
+
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+ if (!presShell) {
+ return nsRect();
+ }
+ nsIFrame* rootFrame = presShell->GetRootFrame();
+ if (!rootFrame) {
+ return nsRect();
+ }
+
+ return rootFrame->GetScreenRectInAppUnits();
+}
+
+float
+nsGlobalWindow::GetMozInnerScreenXOuter(CallerType aCallerType)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ // When resisting fingerprinting, always return 0.
+ if (nsContentUtils::ResistFingerprinting(aCallerType)) {
+ return 0.0;
+ }
+
+ nsRect r = GetInnerScreenRect();
+ return nsPresContext::AppUnitsToFloatCSSPixels(r.x);
+}
+
+float
+nsGlobalWindow::GetMozInnerScreenX(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetMozInnerScreenXOuter, (aCallerType), aError, 0);
+}
+
+float
+nsGlobalWindow::GetMozInnerScreenYOuter(CallerType aCallerType)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ // Return 0 to prevent fingerprinting.
+ if (nsContentUtils::ResistFingerprinting(aCallerType)) {
+ return 0.0;
+ }
+
+ nsRect r = GetInnerScreenRect();
+ return nsPresContext::AppUnitsToFloatCSSPixels(r.y);
+}
+
+float
+nsGlobalWindow::GetMozInnerScreenY(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetMozInnerScreenYOuter, (aCallerType), aError, 0);
+}
+
+float
+nsGlobalWindow::GetDevicePixelRatioOuter(CallerType aCallerType)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return 1.0;
+ }
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (!presContext) {
+ return 1.0;
+ }
+
+ if (nsContentUtils::ResistFingerprinting(aCallerType)) {
+ return 1.0;
+ }
+
+ float overrideDPPX = presContext->GetOverrideDPPX();
+
+ if (overrideDPPX > 0) {
+ return overrideDPPX;
+ }
+
+ return float(nsPresContext::AppUnitsPerCSSPixel())/
+ presContext->AppUnitsPerDevPixel();
+}
+
+float
+nsGlobalWindow::GetDevicePixelRatio(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetDevicePixelRatioOuter, (aCallerType), aError, 0.0);
+}
+
+float
+nsPIDOMWindowOuter::GetDevicePixelRatio(CallerType aCallerType)
+{
+ return nsGlobalWindow::Cast(this)->GetDevicePixelRatioOuter(aCallerType);
+}
+
+uint64_t
+nsGlobalWindow::GetMozPaintCountOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return 0;
+ }
+
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+ return presShell ? presShell->GetPaintCount() : 0;
+}
+
+uint64_t
+nsGlobalWindow::GetMozPaintCount(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetMozPaintCountOuter, (), aError, 0);
+}
+
+int32_t
+nsGlobalWindow::RequestAnimationFrame(FrameRequestCallback& aCallback,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mDoc) {
+ return 0;
+ }
+
+ if (GetWrapperPreserveColor()) {
+ js::NotifyAnimationActivity(GetWrapperPreserveColor());
+ }
+
+ int32_t handle;
+ aError = mDoc->ScheduleFrameRequestCallback(aCallback, &handle);
+ return handle;
+}
+
+void
+nsGlobalWindow::CancelAnimationFrame(int32_t aHandle, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mDoc) {
+ return;
+ }
+
+ mDoc->CancelFrameRequestCallback(aHandle);
+}
+
+already_AddRefed<MediaQueryList>
+nsGlobalWindow::MatchMediaOuter(const nsAString& aMediaQueryList)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDoc) {
+ return nullptr;
+ }
+
+ return mDoc->MatchMedia(aMediaQueryList);
+}
+
+already_AddRefed<MediaQueryList>
+nsGlobalWindow::MatchMedia(const nsAString& aMediaQueryList,
+ 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), aError, nullptr);
+}
+
+void
+nsGlobalWindow::SetScreenXOuter(int32_t aScreenX, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ int32_t x, y;
+ aError = treeOwnerAsWin->GetPosition(&x, &y);
+ if (aError.Failed()) {
+ return;
+ }
+
+ CheckSecurityLeftAndTop(&aScreenX, nullptr, aCallerIsChrome);
+ x = CSSToDevIntPixels(aScreenX);
+
+ aError = treeOwnerAsWin->SetPosition(x, y);
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::SetScreenX(int32_t aScreenX, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetScreenXOuter, (aScreenX, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SetScreenX(JSContext* aCx, JS::Handle<JS::Value> aValue,
+ CallerType aCallerType, ErrorResult& aError)
+{
+ SetReplaceableWindowCoord(aCx, &nsGlobalWindow::SetScreenX,
+ aValue, "screenX", aError);
+}
+
+int32_t
+nsGlobalWindow::GetScreenYOuter(CallerType aCallerType, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ return GetScreenXY(aCallerType, aError).y;
+}
+
+int32_t
+nsGlobalWindow::GetScreenY(CallerType aCallerType, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetScreenYOuter, (aCallerType, aError), aError, 0);
+}
+
+void
+nsGlobalWindow::GetScreenY(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aValue,
+ CallerType aCallerType, ErrorResult& aError)
+{
+ GetReplaceableWindowCoord(aCx, &nsGlobalWindow::GetScreenY, aValue,
+ aCallerType, aError);
+}
+
+void
+nsGlobalWindow::SetScreenYOuter(int32_t aScreenY, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ int32_t x, y;
+ aError = treeOwnerAsWin->GetPosition(&x, &y);
+ if (aError.Failed()) {
+ return;
+ }
+
+ CheckSecurityLeftAndTop(nullptr, &aScreenY, aCallerIsChrome);
+ y = CSSToDevIntPixels(aScreenY);
+
+ aError = treeOwnerAsWin->SetPosition(x, y);
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::SetScreenY(int32_t aScreenY, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetScreenYOuter, (aScreenY, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SetScreenY(JSContext* aCx, JS::Handle<JS::Value> aValue,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ SetReplaceableWindowCoord(aCx, &nsGlobalWindow::SetScreenY,
+ aValue, "screenY", aError);
+}
+
+// NOTE: Arguments to this function should have values scaled to
+// CSS pixels, not device pixels.
+void
+nsGlobalWindow::CheckSecurityWidthAndHeight(int32_t* aWidth, int32_t* aHeight, bool aCallerIsChrome)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+#ifdef MOZ_XUL
+ if (!aCallerIsChrome) {
+ // if attempting to resize the window, hide any open popups
+ nsContentUtils::HidePopupsInDocument(mDoc);
+ }
+#endif
+
+ // This one is easy. Just ensure the variable is greater than 100;
+ if ((aWidth && *aWidth < 100) || (aHeight && *aHeight < 100)) {
+ // Check security state for use in determing window dimensions
+
+ if (!nsContentUtils::IsCallerChrome()) {
+ //sec check failed
+ if (aWidth && *aWidth < 100) {
+ *aWidth = 100;
+ }
+ if (aHeight && *aHeight < 100) {
+ *aHeight = 100;
+ }
+ }
+ }
+}
+
+// NOTE: Arguments to this function should have values in device pixels
+nsresult
+nsGlobalWindow::SetDocShellWidthAndHeight(int32_t aInnerWidth, int32_t aInnerHeight)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
+
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
+ mDocShell->GetTreeOwner(getter_AddRefs(treeOwner));
+ NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
+
+ NS_ENSURE_SUCCESS(treeOwner->SizeShellTo(mDocShell, aInnerWidth, aInnerHeight),
+ NS_ERROR_FAILURE);
+
+ return NS_OK;
+}
+
+// NOTE: Arguments to this function should have values in app units
+void
+nsGlobalWindow::SetCSSViewportWidthAndHeight(nscoord aInnerWidth, nscoord aInnerHeight)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+
+ nsRect shellArea = presContext->GetVisibleArea();
+ shellArea.height = aInnerHeight;
+ shellArea.width = aInnerWidth;
+
+ presContext->SetVisibleArea(shellArea);
+}
+
+// NOTE: Arguments to this function should have values scaled to
+// CSS pixels, not device pixels.
+void
+nsGlobalWindow::CheckSecurityLeftAndTop(int32_t* aLeft, int32_t* aTop, bool aCallerIsChrome)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // This one is harder. We have to get the screen size and window dimensions.
+
+ // Check security state for use in determing window dimensions
+
+ if (!aCallerIsChrome) {
+#ifdef MOZ_XUL
+ // if attempting to move the window, hide any open popups
+ nsContentUtils::HidePopupsInDocument(mDoc);
+#endif
+
+ if (nsGlobalWindow* rootWindow = nsGlobalWindow::Cast(GetPrivateRoot())) {
+ rootWindow->FlushPendingNotifications(Flush_Layout);
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwner = GetTreeOwnerWindow();
+
+ nsCOMPtr<nsIDOMScreen> screen = GetScreen();
+
+ if (treeOwner && screen) {
+ int32_t screenLeft, screenTop, screenWidth, screenHeight;
+ int32_t winLeft, winTop, winWidth, winHeight;
+
+ // Get the window size
+ treeOwner->GetPositionAndSize(&winLeft, &winTop, &winWidth, &winHeight);
+
+ // convert those values to CSS pixels
+ // XXX four separate retrievals of the prescontext
+ winLeft = DevToCSSIntPixels(winLeft);
+ winTop = DevToCSSIntPixels(winTop);
+ winWidth = DevToCSSIntPixels(winWidth);
+ winHeight = DevToCSSIntPixels(winHeight);
+
+ // Get the screen dimensions
+ // XXX This should use nsIScreenManager once it's fully fleshed out.
+ screen->GetAvailLeft(&screenLeft);
+ screen->GetAvailWidth(&screenWidth);
+ screen->GetAvailHeight(&screenHeight);
+#if defined(XP_MACOSX)
+ /* The mac's coordinate system is different from the assumed Windows'
+ system. It offsets by the height of the menubar so that a window
+ placed at (0,0) will be entirely visible. Unfortunately that
+ correction is made elsewhere (in Widget) and the meaning of
+ the Avail... coordinates is overloaded. Here we allow a window
+ to be placed at (0,0) because it does make sense to do so.
+ */
+ screen->GetTop(&screenTop);
+#else
+ screen->GetAvailTop(&screenTop);
+#endif
+
+ if (aLeft) {
+ if (screenLeft+screenWidth < *aLeft+winWidth)
+ *aLeft = screenLeft+screenWidth - winWidth;
+ if (screenLeft > *aLeft)
+ *aLeft = screenLeft;
+ }
+ if (aTop) {
+ if (screenTop+screenHeight < *aTop+winHeight)
+ *aTop = screenTop+screenHeight - winHeight;
+ if (screenTop > *aTop)
+ *aTop = screenTop;
+ }
+ } else {
+ if (aLeft)
+ *aLeft = 0;
+ if (aTop)
+ *aTop = 0;
+ }
+ }
+}
+
+int32_t
+nsGlobalWindow::GetScrollBoundaryOuter(Side aSide)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ FlushPendingNotifications(Flush_Layout);
+ if (nsIScrollableFrame *sf = GetScrollFrame()) {
+ return nsPresContext::
+ AppUnitsToIntCSSPixels(sf->GetScrollRange().Edge(aSide));
+ }
+ return 0;
+}
+
+int32_t
+nsGlobalWindow::GetScrollMinX(ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideLeft), aError, 0);
+}
+
+int32_t
+nsGlobalWindow::GetScrollMinY(ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideTop), aError, 0);
+}
+
+int32_t
+nsGlobalWindow::GetScrollMaxX(ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideRight), aError, 0);
+}
+
+int32_t
+nsGlobalWindow::GetScrollMaxY(ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ FORWARD_TO_OUTER_OR_THROW(GetScrollBoundaryOuter, (eSideBottom), aError, 0);
+}
+
+CSSIntPoint
+nsGlobalWindow::GetScrollXY(bool aDoFlush)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (aDoFlush) {
+ FlushPendingNotifications(Flush_Layout);
+ } else {
+ EnsureSizeUpToDate();
+ }
+
+ nsIScrollableFrame *sf = GetScrollFrame();
+ if (!sf) {
+ return CSSIntPoint(0, 0);
+ }
+
+ nsPoint scrollPos = sf->GetScrollPosition();
+ if (scrollPos != nsPoint(0,0) && !aDoFlush) {
+ // Oh, well. This is the expensive case -- the window is scrolled and we
+ // didn't actually flush yet. Repeat, but with a flush, since the content
+ // may get shorter and hence our scroll position may decrease.
+ return GetScrollXY(true);
+ }
+
+ return sf->GetScrollPositionCSSPixels();
+}
+
+int32_t
+nsGlobalWindow::GetScrollXOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ return GetScrollXY(false).x;
+}
+
+int32_t
+nsGlobalWindow::GetScrollX(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetScrollXOuter, (), aError, 0);
+}
+
+int32_t
+nsGlobalWindow::GetScrollYOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ return GetScrollXY(false).y;
+}
+
+int32_t
+nsGlobalWindow::GetScrollY(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetScrollYOuter, (), aError, 0);
+}
+
+uint32_t
+nsGlobalWindow::Length()
+{
+ FORWARD_TO_OUTER(Length, (), 0);
+
+ nsDOMWindowList* windows = GetWindowList();
+
+ return windows ? windows->GetLength() : 0;
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetTopOuter()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsPIDOMWindowOuter> top = GetScriptableTop();
+ return top.forget();
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetTop(mozilla::ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetTopOuter, (), aError, nullptr);
+}
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetChildWindow(const nsAString& aName)
+{
+ nsCOMPtr<nsIDocShell> docShell(GetDocShell());
+ NS_ENSURE_TRUE(docShell, nullptr);
+
+ nsCOMPtr<nsIDocShellTreeItem> child;
+ docShell->FindChildWithName(aName, false, true, nullptr, nullptr,
+ getter_AddRefs(child));
+
+ return child ? child->GetWindow() : nullptr;
+}
+
+bool
+nsGlobalWindow::DispatchCustomEvent(const nsAString& aEventName)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ bool defaultActionEnabled = true;
+ nsContentUtils::DispatchTrustedEvent(mDoc, ToSupports(this), aEventName,
+ true, true, &defaultActionEnabled);
+
+ return defaultActionEnabled;
+}
+
+bool
+nsGlobalWindow::DispatchResizeEvent(const CSSIntSize& aSize)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ ErrorResult res;
+ RefPtr<Event> domEvent =
+ mDoc->CreateEvent(NS_LITERAL_STRING("CustomEvent"), res);
+ if (res.Failed()) {
+ return false;
+ }
+
+ // We don't init the AutoJSAPI with ourselves because we don't want it
+ // reporting errors to our onerror handlers.
+ AutoJSAPI jsapi;
+ jsapi.Init();
+ JSContext* cx = jsapi.cx();
+ JSAutoCompartment ac(cx, GetWrapperPreserveColor());
+
+ DOMWindowResizeEventDetail detail;
+ detail.mWidth = aSize.width;
+ detail.mHeight = aSize.height;
+ JS::Rooted<JS::Value> detailValue(cx);
+ if (!ToJSValue(cx, detail, &detailValue)) {
+ return false;
+ }
+
+ CustomEvent* customEvent = static_cast<CustomEvent*>(domEvent.get());
+ customEvent->InitCustomEvent(cx,
+ NS_LITERAL_STRING("DOMWindowResize"),
+ /* aCanBubble = */ true,
+ /* aCancelable = */ true,
+ detailValue,
+ res);
+ if (res.Failed()) {
+ return false;
+ }
+
+ domEvent->SetTrusted(true);
+ domEvent->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
+
+ nsCOMPtr<EventTarget> target = do_QueryInterface(GetOuterWindow());
+ domEvent->SetTarget(target);
+
+ bool defaultActionEnabled = true;
+ target->DispatchEvent(domEvent, &defaultActionEnabled);
+
+ return defaultActionEnabled;
+}
+
+void
+nsGlobalWindow::RefreshCompartmentPrincipal()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ JS_SetCompartmentPrincipals(js::GetObjectCompartment(GetWrapperPreserveColor()),
+ nsJSPrincipals::get(mDoc->NodePrincipal()));
+}
+
+static already_AddRefed<nsIDocShellTreeItem>
+GetCallerDocShellTreeItem()
+{
+ nsCOMPtr<nsIWebNavigation> callerWebNav = do_GetInterface(GetEntryGlobal());
+ nsCOMPtr<nsIDocShellTreeItem> callerItem = do_QueryInterface(callerWebNav);
+
+ return callerItem.forget();
+}
+
+bool
+nsGlobalWindow::WindowExists(const nsAString& aName,
+ bool aForceNoOpener,
+ bool aLookForCallerOnJSStack)
+{
+ NS_PRECONDITION(IsOuterWindow(), "Must be outer window");
+ NS_PRECONDITION(mDocShell, "Must have docshell");
+
+ if (aForceNoOpener) {
+ return aName.LowerCaseEqualsLiteral("_self") ||
+ aName.LowerCaseEqualsLiteral("_top") ||
+ aName.LowerCaseEqualsLiteral("_parent");
+ }
+
+ nsCOMPtr<nsIDocShellTreeItem> caller;
+ if (aLookForCallerOnJSStack) {
+ caller = GetCallerDocShellTreeItem();
+ }
+
+ if (!caller) {
+ caller = mDocShell;
+ }
+
+ nsCOMPtr<nsIDocShellTreeItem> namedItem;
+ mDocShell->FindItemWithName(aName, nullptr, caller,
+ getter_AddRefs(namedItem));
+ return namedItem != nullptr;
+}
+
+already_AddRefed<nsIWidget>
+nsGlobalWindow::GetMainWidget()
+{
+ FORWARD_TO_OUTER(GetMainWidget, (), nullptr);
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+
+ nsCOMPtr<nsIWidget> widget;
+
+ if (treeOwnerAsWin) {
+ treeOwnerAsWin->GetMainWidget(getter_AddRefs(widget));
+ }
+
+ return widget.forget();
+}
+
+nsIWidget*
+nsGlobalWindow::GetNearestWidget() const
+{
+ nsIDocShell* docShell = GetDocShell();
+ NS_ENSURE_TRUE(docShell, nullptr);
+ nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
+ NS_ENSURE_TRUE(presShell, nullptr);
+ nsIFrame* rootFrame = presShell->GetRootFrame();
+ NS_ENSURE_TRUE(rootFrame, nullptr);
+ return rootFrame->GetView()->GetNearestWidget(nullptr);
+}
+
+void
+nsGlobalWindow::SetFullScreenOuter(bool aFullScreen, mozilla::ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ aError = SetFullscreenInternal(FullscreenReason::ForFullscreenMode, aFullScreen);
+}
+
+void
+nsGlobalWindow::SetFullScreen(bool aFullScreen, mozilla::ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetFullScreenOuter, (aFullScreen, aError), aError, /* void */);
+}
+
+nsresult
+nsGlobalWindow::SetFullScreen(bool aFullScreen)
+{
+ FORWARD_TO_OUTER(SetFullScreen, (aFullScreen), NS_ERROR_NOT_INITIALIZED);
+
+ return SetFullscreenInternal(FullscreenReason::ForFullscreenMode, aFullScreen);
+}
+
+static void
+FinishDOMFullscreenChange(nsIDocument* aDoc, bool aInDOMFullscreen)
+{
+ if (aInDOMFullscreen) {
+ // Ask the document to handle any pending DOM fullscreen change.
+ if (!nsIDocument::HandlePendingFullscreenRequests(aDoc)) {
+ // If we don't end up having anything in fullscreen,
+ // async request exiting fullscreen.
+ nsIDocument::AsyncExitFullscreen(aDoc);
+ }
+ } else {
+ // If the window is leaving fullscreen state, also ask the document
+ // to exit from DOM Fullscreen.
+ nsIDocument::ExitFullscreenInDocTree(aDoc);
+ }
+}
+
+struct FullscreenTransitionDuration
+{
+ // The unit of the durations is millisecond
+ uint16_t mFadeIn = 0;
+ uint16_t mFadeOut = 0;
+ bool IsSuppressed() const
+ {
+ return mFadeIn == 0 && mFadeOut == 0;
+ }
+};
+
+static void
+GetFullscreenTransitionDuration(bool aEnterFullscreen,
+ FullscreenTransitionDuration* aDuration)
+{
+ const char* pref = aEnterFullscreen ?
+ "full-screen-api.transition-duration.enter" :
+ "full-screen-api.transition-duration.leave";
+ nsAdoptingCString prefValue = Preferences::GetCString(pref);
+ if (!prefValue.IsEmpty()) {
+ sscanf(prefValue.get(), "%hu%hu",
+ &aDuration->mFadeIn, &aDuration->mFadeOut);
+ }
+}
+
+class FullscreenTransitionTask : public Runnable
+{
+public:
+ FullscreenTransitionTask(const FullscreenTransitionDuration& aDuration,
+ nsGlobalWindow* aWindow, bool aFullscreen,
+ nsIWidget* aWidget, nsIScreen* aScreen,
+ nsISupports* aTransitionData)
+ : mWindow(aWindow)
+ , mWidget(aWidget)
+ , mScreen(aScreen)
+ , mTransitionData(aTransitionData)
+ , mDuration(aDuration)
+ , mStage(eBeforeToggle)
+ , mFullscreen(aFullscreen)
+ {
+ MOZ_COUNT_CTOR(FullscreenTransitionTask);
+ }
+
+ NS_IMETHOD Run() override;
+
+private:
+ virtual ~FullscreenTransitionTask()
+ {
+ MOZ_COUNT_DTOR(FullscreenTransitionTask);
+ }
+
+ /**
+ * The flow of fullscreen transition:
+ *
+ * parent process | child process
+ * ----------------------------------------------------------------
+ *
+ * | request/exit fullscreen
+ * <-----|
+ * BeforeToggle stage |
+ * |
+ * ToggleFullscreen stage *1 |----->
+ * | HandleFullscreenRequests
+ * |
+ * <-----| MozAfterPaint event
+ * AfterToggle stage *2 |
+ * |
+ * End stage |
+ *
+ * Note we also start a timer at *1 so that if we don't get MozAfterPaint
+ * from the child process in time, we continue going to *2.
+ */
+ enum Stage {
+ // BeforeToggle stage happens before we enter or leave fullscreen
+ // state. In this stage, the task triggers the pre-toggle fullscreen
+ // transition on the widget.
+ eBeforeToggle,
+ // ToggleFullscreen stage actually executes the fullscreen toggle,
+ // and wait for the next paint on the content to continue.
+ eToggleFullscreen,
+ // AfterToggle stage happens after we toggle the fullscreen state.
+ // In this stage, the task triggers the post-toggle fullscreen
+ // transition on the widget.
+ eAfterToggle,
+ // End stage is triggered after the final transition finishes.
+ eEnd
+ };
+
+ class Observer final : public nsIObserver
+ {
+ public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIOBSERVER
+
+ explicit Observer(FullscreenTransitionTask* aTask)
+ : mTask(aTask) { }
+
+ private:
+ ~Observer() {}
+
+ RefPtr<FullscreenTransitionTask> mTask;
+ };
+
+ static const char* const kPaintedTopic;
+
+ RefPtr<nsGlobalWindow> mWindow;
+ nsCOMPtr<nsIWidget> mWidget;
+ nsCOMPtr<nsIScreen> mScreen;
+ nsCOMPtr<nsITimer> mTimer;
+ nsCOMPtr<nsISupports> mTransitionData;
+
+ TimeStamp mFullscreenChangeStartTime;
+ FullscreenTransitionDuration mDuration;
+ Stage mStage;
+ bool mFullscreen;
+};
+
+const char* const
+FullscreenTransitionTask::kPaintedTopic = "fullscreen-painted";
+
+NS_IMETHODIMP
+FullscreenTransitionTask::Run()
+{
+ Stage stage = mStage;
+ mStage = Stage(mStage + 1);
+ if (MOZ_UNLIKELY(mWidget->Destroyed())) {
+ // If the widget has been destroyed before we get here, don't try to
+ // do anything more. Just let it go and release ourselves.
+ NS_WARNING("The widget to fullscreen has been destroyed");
+ return NS_OK;
+ }
+ if (stage == eBeforeToggle) {
+ PROFILER_MARKER("Fullscreen transition start");
+ mWidget->PerformFullscreenTransition(nsIWidget::eBeforeFullscreenToggle,
+ mDuration.mFadeIn, mTransitionData,
+ this);
+ } else if (stage == eToggleFullscreen) {
+ PROFILER_MARKER("Fullscreen toggle start");
+ mFullscreenChangeStartTime = TimeStamp::Now();
+ if (MOZ_UNLIKELY(mWindow->mFullScreen != mFullscreen)) {
+ // This could happen in theory if several fullscreen requests in
+ // different direction happen continuously in a short time. We
+ // need to ensure the fullscreen state matches our target here,
+ // otherwise the widget would change the window state as if we
+ // toggle for Fullscreen Mode instead of Fullscreen API.
+ NS_WARNING("The fullscreen state of the window does not match");
+ mWindow->mFullScreen = mFullscreen;
+ }
+ // Toggle the fullscreen state on the widget
+ if (!mWindow->SetWidgetFullscreen(FullscreenReason::ForFullscreenAPI,
+ mFullscreen, mWidget, mScreen)) {
+ // Fail to setup the widget, call FinishFullscreenChange to
+ // complete fullscreen change directly.
+ mWindow->FinishFullscreenChange(mFullscreen);
+ }
+ // Set observer for the next content paint.
+ nsCOMPtr<nsIObserver> observer = new Observer(this);
+ nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+ obs->AddObserver(observer, kPaintedTopic, false);
+ // There are several edge cases where we may never get the paint
+ // notification, including:
+ // 1. the window/tab is closed before the next paint;
+ // 2. the user has switched to another tab before we get here.
+ // Completely fixing those cases seems to be tricky, and since they
+ // should rarely happen, it probably isn't worth to fix. Hence we
+ // simply add a timeout here to ensure we never hang forever.
+ // In addition, if the page is complicated or the machine is less
+ // powerful, layout could take a long time, in which case, staying
+ // in black screen for that long could hurt user experience even
+ // more than exposing an intermediate state.
+ mTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
+ uint32_t timeout =
+ Preferences::GetUint("full-screen-api.transition.timeout", 1000);
+ mTimer->Init(observer, timeout, nsITimer::TYPE_ONE_SHOT);
+ } else if (stage == eAfterToggle) {
+ Telemetry::AccumulateTimeDelta(Telemetry::FULLSCREEN_TRANSITION_BLACK_MS,
+ mFullscreenChangeStartTime);
+ mWidget->PerformFullscreenTransition(nsIWidget::eAfterFullscreenToggle,
+ mDuration.mFadeOut, mTransitionData,
+ this);
+ } else if (stage == eEnd) {
+ PROFILER_MARKER("Fullscreen transition end");
+ }
+ return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(FullscreenTransitionTask::Observer, nsIObserver)
+
+NS_IMETHODIMP
+FullscreenTransitionTask::Observer::Observe(nsISupports* aSubject,
+ const char* aTopic,
+ const char16_t* aData)
+{
+ bool shouldContinue = false;
+ if (strcmp(aTopic, FullscreenTransitionTask::kPaintedTopic) == 0) {
+ nsCOMPtr<nsPIDOMWindowInner> win(do_QueryInterface(aSubject));
+ nsCOMPtr<nsIWidget> widget = win ?
+ nsGlobalWindow::Cast(win)->GetMainWidget() : nullptr;
+ if (widget == mTask->mWidget) {
+ // The paint notification arrives first. Cancel the timer.
+ mTask->mTimer->Cancel();
+ shouldContinue = true;
+ PROFILER_MARKER("Fullscreen toggle end");
+ }
+ } else {
+#ifdef DEBUG
+ MOZ_ASSERT(strcmp(aTopic, NS_TIMER_CALLBACK_TOPIC) == 0,
+ "Should only get fullscreen-painted or timer-callback");
+ nsCOMPtr<nsITimer> timer(do_QueryInterface(aSubject));
+ MOZ_ASSERT(timer && timer == mTask->mTimer,
+ "Should only trigger this with the timer the task created");
+#endif
+ shouldContinue = true;
+ PROFILER_MARKER("Fullscreen toggle timeout");
+ }
+ if (shouldContinue) {
+ nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+ obs->RemoveObserver(this, kPaintedTopic);
+ mTask->mTimer = nullptr;
+ mTask->Run();
+ }
+ return NS_OK;
+}
+
+static bool
+MakeWidgetFullscreen(nsGlobalWindow* aWindow, FullscreenReason aReason,
+ bool aFullscreen)
+{
+ nsCOMPtr<nsIWidget> widget = aWindow->GetMainWidget();
+ if (!widget) {
+ return false;
+ }
+
+ FullscreenTransitionDuration duration;
+ bool performTransition = false;
+ nsCOMPtr<nsISupports> transitionData;
+ if (aReason == FullscreenReason::ForFullscreenAPI) {
+ GetFullscreenTransitionDuration(aFullscreen, &duration);
+ if (!duration.IsSuppressed()) {
+ performTransition = widget->
+ PrepareForFullscreenTransition(getter_AddRefs(transitionData));
+ }
+ }
+ // We pass nullptr as the screen to SetWidgetFullscreen
+ // and FullscreenTransitionTask, as we do not wish to override
+ // the default screen selection behavior. The screen containing
+ // most of the widget will be selected.
+ if (!performTransition) {
+ return aWindow->SetWidgetFullscreen(aReason, aFullscreen, widget, nullptr);
+ } else {
+ nsCOMPtr<nsIRunnable> task =
+ new FullscreenTransitionTask(duration, aWindow, aFullscreen,
+ widget, nullptr, transitionData);
+ task->Run();
+ return true;
+ }
+}
+
+nsresult
+nsGlobalWindow::SetFullscreenInternal(FullscreenReason aReason,
+ bool aFullScreen)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(nsContentUtils::IsSafeToRunScript(),
+ "Requires safe to run script as it "
+ "may call FinishDOMFullscreenChange");
+
+ NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
+
+ MOZ_ASSERT(aReason != FullscreenReason::ForForceExitFullscreen || !aFullScreen,
+ "FullscreenReason::ForForceExitFullscreen can "
+ "only be used with exiting fullscreen");
+
+ // Only chrome can change our fullscreen mode. Otherwise, the state
+ // can only be changed for DOM fullscreen.
+ if (aReason == FullscreenReason::ForFullscreenMode &&
+ !nsContentUtils::LegacyIsCallerChromeOrNativeCode()) {
+ return NS_OK;
+ }
+
+ // SetFullScreen needs to be called on the root window, so get that
+ // via the DocShell tree, and if we are not already the root,
+ // call SetFullScreen on that window instead.
+ nsCOMPtr<nsIDocShellTreeItem> rootItem;
+ mDocShell->GetRootTreeItem(getter_AddRefs(rootItem));
+ nsCOMPtr<nsPIDOMWindowOuter> window = rootItem ? rootItem->GetWindow() : nullptr;
+ if (!window)
+ return NS_ERROR_FAILURE;
+ if (rootItem != mDocShell)
+ return window->SetFullscreenInternal(aReason, aFullScreen);
+
+ // make sure we don't try to set full screen on a non-chrome window,
+ // which might happen in embedding world
+ if (mDocShell->ItemType() != nsIDocShellTreeItem::typeChrome)
+ return NS_ERROR_FAILURE;
+
+ // If we are already in full screen mode, just return.
+ if (mFullScreen == aFullScreen)
+ return NS_OK;
+
+ // Note that although entering DOM fullscreen could also cause
+ // consequential calls to this method, those calls will be skipped
+ // at the condition above.
+ if (aReason == FullscreenReason::ForFullscreenMode) {
+ if (!aFullScreen && !mFullscreenMode) {
+ // If we are exiting fullscreen mode, but we actually didn't
+ // entered fullscreen mode, the fullscreen state was only for
+ // the Fullscreen API. Change the reason here so that we can
+ // perform transition for it.
+ aReason = FullscreenReason::ForFullscreenAPI;
+ } else {
+ mFullscreenMode = aFullScreen;
+ }
+ } else {
+ // If we are exiting from DOM fullscreen while we initially make
+ // the window fullscreen because of fullscreen mode, don't restore
+ // the window. But we still need to exit the DOM fullscreen state.
+ if (!aFullScreen && mFullscreenMode) {
+ FinishDOMFullscreenChange(mDoc, false);
+ return NS_OK;
+ }
+ }
+
+ // Prevent chrome documents which are still loading from resizing
+ // the window after we set fullscreen mode.
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ nsCOMPtr<nsIXULWindow> xulWin(do_GetInterface(treeOwnerAsWin));
+ if (aFullScreen && xulWin) {
+ xulWin->SetIntrinsicallySized(false);
+ }
+
+ // Set this before so if widget sends an event indicating its
+ // gone full screen, the state trap above works.
+ mFullScreen = aFullScreen;
+
+ // Sometimes we don't want the top-level widget to actually go fullscreen,
+ // for example in the B2G desktop client, we don't want the emulated screen
+ // dimensions to appear to increase when entering fullscreen mode; we just
+ // want the content to fill the entire client area of the emulator window.
+ if (!Preferences::GetBool("full-screen-api.ignore-widgets", false)) {
+ if (MakeWidgetFullscreen(this, aReason, aFullScreen)) {
+ // The rest of code for switching fullscreen is in nsGlobalWindow::
+ // FinishFullscreenChange() which will be called after sizemodechange
+ // event is dispatched.
+ return NS_OK;
+ }
+ }
+
+ FinishFullscreenChange(aFullScreen);
+ return NS_OK;
+}
+
+bool
+nsGlobalWindow::SetWidgetFullscreen(FullscreenReason aReason, bool aIsFullscreen,
+ nsIWidget* aWidget, nsIScreen* aScreen)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(this == GetTopInternal(), "Only topmost window should call this");
+ MOZ_ASSERT(!AsOuter()->GetFrameElementInternal(), "Content window should not call this");
+ MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Default);
+
+ if (!NS_WARN_IF(!IsChromeWindow())) {
+ auto chromeWin = static_cast<nsGlobalChromeWindow*>(this);
+ if (!NS_WARN_IF(chromeWin->mFullscreenPresShell)) {
+ if (nsIPresShell* shell = mDocShell->GetPresShell()) {
+ if (nsRefreshDriver* rd = shell->GetRefreshDriver()) {
+ chromeWin->mFullscreenPresShell = do_GetWeakReference(shell);
+ MOZ_ASSERT(chromeWin->mFullscreenPresShell);
+ rd->SetIsResizeSuppressed();
+ rd->Freeze();
+ }
+ }
+ }
+ }
+ nsresult rv = aReason == FullscreenReason::ForFullscreenMode ?
+ // If we enter fullscreen for fullscreen mode, we want
+ // the native system behavior.
+ aWidget->MakeFullScreenWithNativeTransition(aIsFullscreen, aScreen) :
+ aWidget->MakeFullScreen(aIsFullscreen, aScreen);
+ return NS_SUCCEEDED(rv);
+}
+
+/* virtual */ void
+nsGlobalWindow::FinishFullscreenChange(bool aIsFullscreen)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (aIsFullscreen != mFullScreen) {
+ NS_WARNING("Failed to toggle fullscreen state of the widget");
+ // We failed to make the widget enter fullscreen.
+ // Stop further changes and restore the state.
+ if (!aIsFullscreen) {
+ mFullScreen = false;
+ mFullscreenMode = false;
+ } else {
+ MOZ_ASSERT_UNREACHABLE("Failed to exit fullscreen?");
+ mFullScreen = true;
+ // We don't know how code can reach here. Not sure
+ // what value should be set for fullscreen mode.
+ mFullscreenMode = false;
+ }
+ return;
+ }
+
+ // Note that we must call this to toggle the DOM fullscreen state
+ // of the document before dispatching the "fullscreen" event, so
+ // that the chrome can distinguish between browser fullscreen mode
+ // and DOM fullscreen.
+ FinishDOMFullscreenChange(mDoc, mFullScreen);
+
+ // dispatch a "fullscreen" DOM event so that XUL apps can
+ // respond visually if we are kicked into full screen mode
+ DispatchCustomEvent(NS_LITERAL_STRING("fullscreen"));
+
+ if (!NS_WARN_IF(!IsChromeWindow())) {
+ auto chromeWin = static_cast<nsGlobalChromeWindow*>(this);
+ if (nsCOMPtr<nsIPresShell> shell =
+ do_QueryReferent(chromeWin->mFullscreenPresShell)) {
+ if (nsRefreshDriver* rd = shell->GetRefreshDriver()) {
+ rd->Thaw();
+ }
+ chromeWin->mFullscreenPresShell = nullptr;
+ }
+ }
+
+ if (!mWakeLock && mFullScreen) {
+ RefPtr<power::PowerManagerService> pmService =
+ power::PowerManagerService::GetInstance();
+ if (!pmService) {
+ return;
+ }
+
+ // XXXkhuey using the inner here, do we need to do something if it changes?
+ ErrorResult rv;
+ mWakeLock = pmService->NewWakeLock(NS_LITERAL_STRING("DOM_Fullscreen"),
+ AsOuter()->GetCurrentInnerWindow(), rv);
+ NS_WARNING_ASSERTION(!rv.Failed(), "Failed to lock the wakelock");
+ rv.SuppressException();
+ } else if (mWakeLock && !mFullScreen) {
+ ErrorResult rv;
+ mWakeLock->Unlock(rv);
+ mWakeLock = nullptr;
+ rv.SuppressException();
+ }
+}
+
+bool
+nsGlobalWindow::FullScreen() const
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ NS_ENSURE_TRUE(mDocShell, mFullScreen);
+
+ // Get the fullscreen value of the root window, to always have the value
+ // accurate, even when called from content.
+ nsCOMPtr<nsIDocShellTreeItem> rootItem;
+ mDocShell->GetRootTreeItem(getter_AddRefs(rootItem));
+ if (rootItem == mDocShell) {
+ if (!XRE_IsContentProcess()) {
+ // We are the root window. Return our internal value.
+ return mFullScreen;
+ }
+ if (nsCOMPtr<nsIWidget> widget = GetNearestWidget()) {
+ // We are in content process, figure out the value from
+ // the sizemode of the puppet widget.
+ return widget->SizeMode() == nsSizeMode_Fullscreen;
+ }
+ return false;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> window = rootItem->GetWindow();
+ NS_ENSURE_TRUE(window, mFullScreen);
+
+ return nsGlobalWindow::Cast(window)->FullScreen();
+}
+
+bool
+nsGlobalWindow::GetFullScreenOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ return FullScreen();
+}
+
+bool
+nsGlobalWindow::GetFullScreen(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetFullScreenOuter, (), aError, false);
+}
+
+bool
+nsGlobalWindow::GetFullScreen()
+{
+ FORWARD_TO_INNER(GetFullScreen, (), false);
+
+ ErrorResult dummy;
+ bool fullscreen = GetFullScreen(dummy);
+ dummy.SuppressException();
+ return fullscreen;
+}
+
+void
+nsGlobalWindow::Dump(const nsAString& aStr)
+{
+ if (!nsContentUtils::DOMWindowDumpEnabled()) {
+ 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
+nsGlobalWindow::EnsureReflowFlushAndPaint()
+{
+ MOZ_ASSERT(IsOuterWindow());
+ NS_ASSERTION(mDocShell, "EnsureReflowFlushAndPaint() called with no "
+ "docshell!");
+
+ if (!mDocShell)
+ return;
+
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+
+ if (!presShell)
+ return;
+
+ // Flush pending reflows.
+ if (mDoc) {
+ mDoc->FlushPendingNotifications(Flush_Layout);
+ }
+
+ // Unsuppress painting.
+ presShell->UnsuppressPainting();
+}
+
+// static
+void
+nsGlobalWindow::MakeScriptDialogTitle(nsAString& aOutTitle,
+ nsIPrincipal* aSubjectPrincipal)
+{
+ MOZ_ASSERT(aSubjectPrincipal);
+
+ aOutTitle.Truncate();
+
+ // Try to get a host from the running principal -- this will do the
+ // right thing for javascript: and data: documents.
+
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = aSubjectPrincipal->GetURI(getter_AddRefs(uri));
+ // Note - The check for the current JSContext here isn't necessarily sensical.
+ // It's just designed to preserve existing behavior during a mass-conversion
+ // patch.
+ if (NS_SUCCEEDED(rv) && uri && nsContentUtils::GetCurrentJSContext()) {
+ // remove user:pass for privacy and spoof prevention
+
+ nsCOMPtr<nsIURIFixup> fixup(do_GetService(NS_URIFIXUP_CONTRACTID));
+ if (fixup) {
+ nsCOMPtr<nsIURI> fixedURI;
+ rv = fixup->CreateExposableURI(uri, getter_AddRefs(fixedURI));
+ if (NS_SUCCEEDED(rv) && fixedURI) {
+ nsAutoCString host;
+ fixedURI->GetHost(host);
+
+ if (!host.IsEmpty()) {
+ // if this URI has a host we'll show it. For other
+ // schemes (e.g. file:) we fall back to the localized
+ // generic string
+
+ nsAutoCString prepath;
+ fixedURI->GetPrePath(prepath);
+
+ NS_ConvertUTF8toUTF16 ucsPrePath(prepath);
+ const char16_t *formatStrings[] = { ucsPrePath.get() };
+ nsXPIDLString tempString;
+ nsContentUtils::FormatLocalizedString(nsContentUtils::eCOMMON_DIALOG_PROPERTIES,
+ "ScriptDlgHeading",
+ formatStrings,
+ tempString);
+ aOutTitle = tempString;
+ }
+ }
+ }
+ }
+
+ if (aOutTitle.IsEmpty()) {
+ // We didn't find a host so use the generic heading
+ nsXPIDLString tempString;
+ nsContentUtils::GetLocalizedString(nsContentUtils::eCOMMON_DIALOG_PROPERTIES,
+ "ScriptDlgGenericHeading",
+ tempString);
+ aOutTitle = tempString;
+ }
+
+ // Just in case
+ if (aOutTitle.IsEmpty()) {
+ NS_WARNING("could not get ScriptDlgGenericHeading string from string bundle");
+ aOutTitle.AssignLiteral("[Script]");
+ }
+}
+
+bool
+nsGlobalWindow::CanMoveResizeWindows(bool aCallerIsChrome)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // When called from chrome, we can avoid the following checks.
+ if (!aCallerIsChrome) {
+ // Don't allow scripts to move or resize windows that were not opened by a
+ // script.
+ if (!mHadOriginalOpener) {
+ return false;
+ }
+
+ if (!CanSetProperty("dom.disable_window_move_resize")) {
+ return false;
+ }
+
+ // Ignore the request if we have more than one tab in the window.
+ uint32_t itemCount = 0;
+ if (XRE_IsContentProcess()) {
+ nsCOMPtr<nsIDocShell> docShell = GetDocShell();
+ if (docShell) {
+ nsCOMPtr<nsITabChild> child = docShell->GetTabChild();
+ if (child) {
+ child->SendGetTabCount(&itemCount);
+ }
+ }
+ } else {
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner = GetTreeOwner();
+ if (treeOwner) {
+ treeOwner->GetTargetableShellCount(&itemCount);
+ }
+ }
+ if (itemCount > 1) {
+ return false;
+ }
+ }
+
+ if (mDocShell) {
+ bool allow;
+ nsresult rv = mDocShell->GetAllowWindowControl(&allow);
+ if (NS_SUCCEEDED(rv) && !allow)
+ return false;
+ }
+
+ if (gMouseDown && !gDragServiceDisabled) {
+ nsCOMPtr<nsIDragService> ds =
+ do_GetService("@mozilla.org/widget/dragservice;1");
+ if (ds) {
+ gDragServiceDisabled = true;
+ ds->Suppress();
+ }
+ }
+ return true;
+}
+
+bool
+nsGlobalWindow::AlertOrConfirm(bool aAlert,
+ const nsAString& aMessage,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ // XXX This method is very similar to nsGlobalWindow::Prompt, make
+ // sure any modifications here don't need to happen over there!
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!AreDialogsEnabled()) {
+ // Just silently return. In the case of alert(), the return value is
+ // ignored. In the case of confirm(), returning false is the same thing as
+ // would happen if the user cancels.
+ return false;
+ }
+
+ // Reset popup state while opening a modal dialog, and firing events
+ // about the dialog, to prevent the current state from being active
+ // the whole time a modal dialog is open.
+ nsAutoPopupStatePusher popupStatePusher(openAbused, true);
+
+ // Before bringing up the window, unsuppress painting and flush
+ // pending reflows.
+ EnsureReflowFlushAndPaint();
+
+ nsAutoString title;
+ MakeScriptDialogTitle(title, &aSubjectPrincipal);
+
+ // Remove non-terminating null characters from the
+ // string. See bug #310037.
+ nsAutoString final;
+ nsContentUtils::StripNullChars(aMessage, final);
+
+ nsresult rv;
+ nsCOMPtr<nsIPromptFactory> promptFac =
+ do_GetService("@mozilla.org/prompter;1", &rv);
+ if (NS_FAILED(rv)) {
+ aError.Throw(rv);
+ return false;
+ }
+
+ nsCOMPtr<nsIPrompt> prompt;
+ aError = promptFac->GetPrompt(AsOuter(), NS_GET_IID(nsIPrompt),
+ getter_AddRefs(prompt));
+ if (aError.Failed()) {
+ return false;
+ }
+
+ // Always allow tab modal prompts for alert and confirm.
+ if (nsCOMPtr<nsIWritablePropertyBag2> promptBag = do_QueryInterface(prompt)) {
+ promptBag->SetPropertyAsBool(NS_LITERAL_STRING("allowTabModal"), true);
+ }
+
+ bool result = false;
+ nsAutoSyncOperation sync(mDoc);
+ if (ShouldPromptToBlockDialogs()) {
+ bool disallowDialog = false;
+ nsXPIDLString label;
+ nsContentUtils::GetLocalizedString(nsContentUtils::eCOMMON_DIALOG_PROPERTIES,
+ "ScriptDialogLabel", label);
+
+ aError = aAlert ?
+ prompt->AlertCheck(title.get(), final.get(), label.get(),
+ &disallowDialog) :
+ prompt->ConfirmCheck(title.get(), final.get(), label.get(),
+ &disallowDialog, &result);
+
+ if (disallowDialog)
+ DisableDialogs();
+ } else {
+ aError = aAlert ?
+ prompt->Alert(title.get(), final.get()) :
+ prompt->Confirm(title.get(), final.get(), &result);
+ }
+
+ return result;
+}
+
+void
+nsGlobalWindow::Alert(nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ Alert(EmptyString(), aSubjectPrincipal, aError);
+}
+
+void
+nsGlobalWindow::AlertOuter(const nsAString& aMessage,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ AlertOrConfirm(/* aAlert = */ true, aMessage, aSubjectPrincipal, aError);
+}
+
+void
+nsGlobalWindow::Alert(const nsAString& aMessage,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(AlertOuter, (aMessage, aSubjectPrincipal, aError),
+ aError, );
+}
+
+bool
+nsGlobalWindow::ConfirmOuter(const nsAString& aMessage,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ return AlertOrConfirm(/* aAlert = */ false, aMessage, aSubjectPrincipal,
+ aError);
+}
+
+bool
+nsGlobalWindow::Confirm(const nsAString& aMessage,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(ConfirmOuter, (aMessage, aSubjectPrincipal, aError),
+ aError, false);
+}
+
+already_AddRefed<Promise>
+nsGlobalWindow::Fetch(const RequestOrUSVString& aInput,
+ const RequestInit& aInit, ErrorResult& aRv)
+{
+ return FetchRequest(this, aInput, aInit, aRv);
+}
+
+void
+nsGlobalWindow::PromptOuter(const nsAString& aMessage,
+ const nsAString& aInitial,
+ nsAString& aReturn,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ // XXX This method is very similar to nsGlobalWindow::AlertOrConfirm, make
+ // sure any modifications here don't need to happen over there!
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ SetDOMStringToNull(aReturn);
+
+ if (!AreDialogsEnabled()) {
+ // Return null, as if the user just canceled the prompt.
+ return;
+ }
+
+ // Reset popup state while opening a modal dialog, and firing events
+ // about the dialog, to prevent the current state from being active
+ // the whole time a modal dialog is open.
+ nsAutoPopupStatePusher popupStatePusher(openAbused, true);
+
+ // Before bringing up the window, unsuppress painting and flush
+ // pending reflows.
+ EnsureReflowFlushAndPaint();
+
+ nsAutoString title;
+ MakeScriptDialogTitle(title, &aSubjectPrincipal);
+
+ // Remove non-terminating null characters from the
+ // string. See bug #310037.
+ nsAutoString fixedMessage, fixedInitial;
+ nsContentUtils::StripNullChars(aMessage, fixedMessage);
+ nsContentUtils::StripNullChars(aInitial, fixedInitial);
+
+ nsresult rv;
+ nsCOMPtr<nsIPromptFactory> promptFac =
+ do_GetService("@mozilla.org/prompter;1", &rv);
+ if (NS_FAILED(rv)) {
+ aError.Throw(rv);
+ return;
+ }
+
+ nsCOMPtr<nsIPrompt> prompt;
+ aError = promptFac->GetPrompt(AsOuter(), NS_GET_IID(nsIPrompt),
+ getter_AddRefs(prompt));
+ if (aError.Failed()) {
+ return;
+ }
+
+ // Always allow tab modal prompts for prompt.
+ if (nsCOMPtr<nsIWritablePropertyBag2> promptBag = do_QueryInterface(prompt)) {
+ promptBag->SetPropertyAsBool(NS_LITERAL_STRING("allowTabModal"), true);
+ }
+
+ // Pass in the default value, if any.
+ char16_t *inoutValue = ToNewUnicode(fixedInitial);
+ bool disallowDialog = false;
+
+ nsXPIDLString label;
+ if (ShouldPromptToBlockDialogs()) {
+ nsContentUtils::GetLocalizedString(nsContentUtils::eCOMMON_DIALOG_PROPERTIES,
+ "ScriptDialogLabel", label);
+ }
+
+ nsAutoSyncOperation sync(mDoc);
+ bool ok;
+ aError = prompt->Prompt(title.get(), fixedMessage.get(),
+ &inoutValue, label.get(), &disallowDialog, &ok);
+
+ if (disallowDialog) {
+ DisableDialogs();
+ }
+
+ if (aError.Failed()) {
+ return;
+ }
+
+ nsAdoptingString outValue(inoutValue);
+
+ if (ok && outValue) {
+ aReturn.Assign(outValue);
+ }
+}
+
+void
+nsGlobalWindow::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
+nsGlobalWindow::FocusOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (!fm) {
+ return;
+ }
+
+ nsCOMPtr<nsIBaseWindow> baseWin = do_QueryInterface(mDocShell);
+
+ bool isVisible = false;
+ if (baseWin) {
+ baseWin->GetVisibility(&isVisible);
+ }
+
+ if (!isVisible) {
+ // A hidden tab is being focused, ignore this call.
+ return;
+ }
+
+ nsCOMPtr<nsPIDOMWindowInner> caller = do_QueryInterface(GetEntryGlobal());
+ nsPIDOMWindowOuter* callerOuter = caller ? caller->GetOuterWindow() : nullptr;
+ nsCOMPtr<nsPIDOMWindowOuter> opener = GetOpener();
+
+ // Enforce dom.disable_window_flip (for non-chrome), but still allow the
+ // window which opened us to raise us at times when popups are allowed
+ // (bugs 355482 and 369306).
+ bool canFocus = CanSetProperty("dom.disable_window_flip") ||
+ (opener == callerOuter &&
+ RevisePopupAbuseLevel(gPopupControlState) < openAbused);
+
+ nsCOMPtr<mozIDOMWindowProxy> activeDOMWindow;
+ fm->GetActiveWindow(getter_AddRefs(activeDOMWindow));
+
+ nsCOMPtr<nsIDocShellTreeItem> rootItem;
+ mDocShell->GetRootTreeItem(getter_AddRefs(rootItem));
+ nsCOMPtr<nsPIDOMWindowOuter> rootWin = rootItem ? rootItem->GetWindow() : nullptr;
+ auto* activeWindow = nsPIDOMWindowOuter::From(activeDOMWindow);
+ bool isActive = (rootWin == activeWindow);
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (treeOwnerAsWin && (canFocus || isActive)) {
+ bool isEnabled = true;
+ if (NS_SUCCEEDED(treeOwnerAsWin->GetEnabled(&isEnabled)) && !isEnabled) {
+ NS_WARNING( "Should not try to set the focus on a disabled window" );
+ return;
+ }
+
+ // XXXndeakin not sure what this is for or if it should go somewhere else
+ nsCOMPtr<nsIEmbeddingSiteWindow> embeddingWin(do_GetInterface(treeOwnerAsWin));
+ if (embeddingWin)
+ embeddingWin->SetFocus();
+ }
+
+ if (!mDocShell) {
+ return;
+ }
+
+ nsCOMPtr<nsIPresShell> presShell;
+ // Don't look for a presshell if we're a root chrome window that's got
+ // about:blank loaded. We don't want to focus our widget in that case.
+ // XXXbz should we really be checking for IsInitialDocument() instead?
+ bool lookForPresShell = true;
+ if (mDocShell->ItemType() == nsIDocShellTreeItem::typeChrome &&
+ GetPrivateRoot() == AsOuter() && mDoc) {
+ nsIURI* ourURI = mDoc->GetDocumentURI();
+ if (ourURI) {
+ lookForPresShell = !NS_IsAboutBlank(ourURI);
+ }
+ }
+
+ if (lookForPresShell) {
+ mDocShell->GetEldestPresShell(getter_AddRefs(presShell));
+ }
+
+ nsCOMPtr<nsIDocShellTreeItem> parentDsti;
+ mDocShell->GetParent(getter_AddRefs(parentDsti));
+
+ // set the parent's current focus to the frame containing this window.
+ nsCOMPtr<nsPIDOMWindowOuter> parent =
+ parentDsti ? parentDsti->GetWindow() : nullptr;
+ if (parent) {
+ nsCOMPtr<nsIDocument> parentdoc = parent->GetDoc();
+ if (!parentdoc) {
+ return;
+ }
+
+ nsIContent* frame = parentdoc->FindContentForSubDocument(mDoc);
+ nsCOMPtr<nsIDOMElement> frameElement = do_QueryInterface(frame);
+ if (frameElement) {
+ uint32_t flags = nsIFocusManager::FLAG_NOSCROLL;
+ if (canFocus)
+ flags |= nsIFocusManager::FLAG_RAISE;
+ aError = fm->SetFocus(frameElement, flags);
+ }
+ return;
+ }
+
+ if (canFocus) {
+ // if there is no parent, this must be a toplevel window, so raise the
+ // window if canFocus is true. If this is a child process, the raise
+ // window request will get forwarded to the parent by the puppet widget.
+ aError = fm->SetActiveWindow(AsOuter());
+ }
+}
+
+void
+nsGlobalWindow::Focus(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(FocusOuter, (aError), aError, );
+}
+
+nsresult
+nsGlobalWindow::Focus()
+{
+ FORWARD_TO_INNER(Focus, (), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ Focus(rv);
+
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::BlurOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ // If dom.disable_window_flip == true, then content should not be allowed
+ // to call this function (this would allow popunders, bug 369306)
+ if (!CanSetProperty("dom.disable_window_flip")) {
+ return;
+ }
+
+ // If embedding apps don't implement nsIEmbeddingSiteWindow, we
+ // shouldn't throw exceptions to web content.
+
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner = GetTreeOwner();
+ nsCOMPtr<nsIEmbeddingSiteWindow> siteWindow(do_GetInterface(treeOwner));
+ if (siteWindow) {
+ // This method call may cause mDocShell to become nullptr.
+ siteWindow->Blur();
+
+ // if the root is focused, clear the focus
+ nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (fm && mDoc) {
+ nsCOMPtr<nsIDOMElement> element;
+ fm->GetFocusedElementForWindow(AsOuter(), false, nullptr, getter_AddRefs(element));
+ nsCOMPtr<nsIContent> content = do_QueryInterface(element);
+ if (content == mDoc->GetRootElement()) {
+ fm->ClearFocus(AsOuter());
+ }
+ }
+ }
+}
+
+void
+nsGlobalWindow::Blur(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(BlurOuter, (), aError, );
+}
+
+void
+nsGlobalWindow::BackOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
+ if (!webNav) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ aError = webNav->GoBack();
+}
+
+void
+nsGlobalWindow::Back(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(BackOuter, (aError), aError, );
+}
+
+void
+nsGlobalWindow::ForwardOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
+ if (!webNav) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ aError = webNav->GoForward();
+}
+
+void
+nsGlobalWindow::Forward(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(ForwardOuter, (aError), aError, );
+}
+
+void
+nsGlobalWindow::HomeOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return;
+ }
+
+ nsAdoptingString homeURL =
+ Preferences::GetLocalizedString(PREF_BROWSER_STARTUP_HOMEPAGE);
+
+ if (homeURL.IsEmpty()) {
+ // if all else fails, use this
+#ifdef DEBUG_seth
+ printf("all else failed. using %s as the home page\n", DEFAULT_HOME_PAGE);
+#endif
+ CopyASCIItoUTF16(DEFAULT_HOME_PAGE, homeURL);
+ }
+
+#ifdef MOZ_PHOENIX
+ {
+ // Firefox lets the user specify multiple home pages to open in
+ // individual tabs by separating them with '|'. Since we don't
+ // have the machinery in place to easily open new tabs from here,
+ // simply truncate the homeURL at the first '|' character to
+ // prevent any possibilities of leaking the users list of home
+ // pages to the first home page.
+ //
+ // Once bug https://bugzilla.mozilla.org/show_bug.cgi?id=221445 is
+ // fixed we can revisit this.
+ int32_t firstPipe = homeURL.FindChar('|');
+
+ if (firstPipe > 0) {
+ homeURL.Truncate(firstPipe);
+ }
+ }
+#endif
+
+ nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
+ if (!webNav) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ aError = webNav->LoadURI(homeURL.get(),
+ nsIWebNavigation::LOAD_FLAGS_NONE,
+ nullptr,
+ nullptr,
+ nullptr);
+}
+
+void
+nsGlobalWindow::Home(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(HomeOuter, (aError), aError, );
+}
+
+void
+nsGlobalWindow::StopOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
+ if (webNav) {
+ aError = webNav->Stop(nsIWebNavigation::STOP_ALL);
+ }
+}
+
+void
+nsGlobalWindow::Stop(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(StopOuter, (aError), aError, );
+}
+
+void
+nsGlobalWindow::PrintOuter(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+#ifdef NS_PRINTING
+ if (Preferences::GetBool("dom.disable_window_print", false)) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return;
+ }
+
+ if (!AreDialogsEnabled()) {
+ // We probably want to keep throwing here; silently doing nothing is a bit
+ // weird given the typical use cases of print().
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return;
+ }
+
+ if (ShouldPromptToBlockDialogs() && !ConfirmDialogIfNeeded()) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return;
+ }
+
+ nsCOMPtr<nsIWebBrowserPrint> webBrowserPrint;
+ if (NS_SUCCEEDED(GetInterface(NS_GET_IID(nsIWebBrowserPrint),
+ getter_AddRefs(webBrowserPrint)))) {
+ nsAutoSyncOperation sync(GetCurrentInnerWindowInternal() ?
+ GetCurrentInnerWindowInternal()->mDoc.get() :
+ nullptr);
+
+ nsCOMPtr<nsIPrintSettingsService> printSettingsService =
+ do_GetService("@mozilla.org/gfx/printsettings-service;1");
+
+ nsCOMPtr<nsIPrintSettings> printSettings;
+ if (printSettingsService) {
+ bool printSettingsAreGlobal =
+ Preferences::GetBool("print.use_global_printsettings", false);
+
+ if (printSettingsAreGlobal) {
+ printSettingsService->GetGlobalPrintSettings(getter_AddRefs(printSettings));
+
+ nsXPIDLString printerName;
+ printSettings->GetPrinterName(getter_Copies(printerName));
+ if (printerName.IsEmpty()) {
+ printSettingsService->GetDefaultPrinterName(getter_Copies(printerName));
+ printSettings->SetPrinterName(printerName);
+ }
+ printSettingsService->InitPrintSettingsFromPrinter(printerName, printSettings);
+ printSettingsService->InitPrintSettingsFromPrefs(printSettings,
+ true,
+ nsIPrintSettings::kInitSaveAll);
+ } else {
+ printSettingsService->GetNewPrintSettings(getter_AddRefs(printSettings));
+ }
+
+ EnterModalState();
+ webBrowserPrint->Print(printSettings, nullptr);
+ LeaveModalState();
+
+ bool savePrintSettings =
+ Preferences::GetBool("print.save_print_settings", false);
+ if (printSettingsAreGlobal && savePrintSettings) {
+ printSettingsService->
+ SavePrintSettingsToPrefs(printSettings,
+ true,
+ nsIPrintSettings::kInitSaveAll);
+ printSettingsService->
+ SavePrintSettingsToPrefs(printSettings,
+ false,
+ nsIPrintSettings::kInitSavePrinterName);
+ }
+ } else {
+ webBrowserPrint->GetGlobalPrintSettings(getter_AddRefs(printSettings));
+ webBrowserPrint->Print(printSettings, nullptr);
+ }
+ }
+#endif //NS_PRINTING
+}
+
+void
+nsGlobalWindow::Print(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(PrintOuter, (aError), aError, );
+}
+
+void
+nsGlobalWindow::MoveToOuter(int32_t aXPos, int32_t aYPos, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ /*
+ * If caller is not chrome and the user has not explicitly exempted the site,
+ * prevent window.moveTo() by exiting early
+ */
+
+ if (!CanMoveResizeWindows(aCallerIsChrome) || IsFrame()) {
+ return;
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ nsCOMPtr<nsIScreenManager> screenMgr =
+ do_GetService("@mozilla.org/gfx/screenmanager;1");
+ nsCOMPtr<nsIScreen> screen;
+ if (screenMgr) {
+ CSSIntSize size;
+ GetInnerSize(size);
+ screenMgr->ScreenForRect(aXPos, aYPos, size.width, size.height,
+ getter_AddRefs(screen));
+ }
+
+ if (screen) {
+ // On secondary displays, the "CSS px" coordinates are offset so that they
+ // share their origin with global desktop pixels, to avoid ambiguities in
+ // the coordinate space when there are displays with different DPIs.
+ // (See the corresponding code in GetScreenXY() above.)
+ int32_t screenLeftDeskPx, screenTopDeskPx, w, h;
+ screen->GetRectDisplayPix(&screenLeftDeskPx, &screenTopDeskPx, &w, &h);
+ CSSIntPoint cssPos(aXPos - screenLeftDeskPx, aYPos - screenTopDeskPx);
+ CheckSecurityLeftAndTop(&cssPos.x, &cssPos.y, aCallerIsChrome);
+
+ double scale;
+ screen->GetDefaultCSSScaleFactor(&scale);
+ LayoutDevicePoint devPos = cssPos * CSSToLayoutDeviceScale(scale);
+
+ screen->GetContentsScaleFactor(&scale);
+ DesktopPoint deskPos = devPos / DesktopToLayoutDeviceScale(scale);
+ aError = treeOwnerAsWin->SetPositionDesktopPix(screenLeftDeskPx + deskPos.x,
+ screenTopDeskPx + deskPos.y);
+ } else {
+ // We couldn't find a screen? Just assume a 1:1 mapping.
+ CSSIntPoint cssPos(aXPos, aXPos);
+ CheckSecurityLeftAndTop(&cssPos.x, &cssPos.y, aCallerIsChrome);
+ LayoutDevicePoint devPos = cssPos * CSSToLayoutDeviceScale(1.0);
+ aError = treeOwnerAsWin->SetPosition(devPos.x, devPos.y);
+ }
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::MoveTo(int32_t aXPos, int32_t aYPos, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(MoveToOuter, (aXPos, aYPos, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::MoveByOuter(int32_t aXDif, int32_t aYDif, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ /*
+ * If caller is not chrome and the user has not explicitly exempted the site,
+ * prevent window.moveBy() by exiting early
+ */
+
+ if (!CanMoveResizeWindows(aCallerIsChrome) || IsFrame()) {
+ return;
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ // To do this correctly we have to convert what we get from GetPosition
+ // into CSS pixels, add the arguments, do the security check, and
+ // then convert back to device pixels for the call to SetPosition.
+
+ int32_t x, y;
+ aError = treeOwnerAsWin->GetPosition(&x, &y);
+ if (aError.Failed()) {
+ return;
+ }
+
+ // mild abuse of a "size" object so we don't need more helper functions
+ nsIntSize cssPos(DevToCSSIntPixels(nsIntSize(x, y)));
+
+ cssPos.width += aXDif;
+ cssPos.height += aYDif;
+
+ CheckSecurityLeftAndTop(&cssPos.width, &cssPos.height, aCallerIsChrome);
+
+ nsIntSize newDevPos(CSSToDevIntPixels(cssPos));
+
+ aError = treeOwnerAsWin->SetPosition(newDevPos.width, newDevPos.height);
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::MoveBy(int32_t aXDif, int32_t aYDif, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(MoveByOuter, (aXDif, aYDif, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+nsresult
+nsGlobalWindow::MoveBy(int32_t aXDif, int32_t aYDif)
+{
+ FORWARD_TO_OUTER(MoveBy, (aXDif, aYDif), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ MoveByOuter(aXDif, aYDif, rv, /* aCallerIsChrome = */ true);
+
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::ResizeToOuter(int32_t aWidth, int32_t aHeight, ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ /*
+ * If caller is a browser-element then dispatch a resize event to
+ * the embedder.
+ */
+ if (mDocShell && mDocShell->GetIsMozBrowserOrApp()) {
+ CSSIntSize size(aWidth, aHeight);
+ if (!DispatchResizeEvent(size)) {
+ // The embedder chose to prevent the default action for this
+ // event, so let's not resize this window after all...
+ return;
+ }
+ }
+
+ /*
+ * If caller is not chrome and the user has not explicitly exempted the site,
+ * prevent window.resizeTo() by exiting early
+ */
+
+ if (!CanMoveResizeWindows(aCallerIsChrome) || IsFrame()) {
+ return;
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ nsIntSize cssSize(aWidth, aHeight);
+ CheckSecurityWidthAndHeight(&cssSize.width, &cssSize.height, aCallerIsChrome);
+
+ nsIntSize devSz(CSSToDevIntPixels(cssSize));
+
+ aError = treeOwnerAsWin->SetSize(devSz.width, devSz.height, true);
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::ResizeTo(int32_t aWidth, int32_t aHeight, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(ResizeToOuter, (aWidth, aHeight, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::ResizeByOuter(int32_t aWidthDif, int32_t aHeightDif,
+ ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ /*
+ * If caller is a browser-element then dispatch a resize event to
+ * parent.
+ */
+ if (mDocShell && mDocShell->GetIsMozBrowserOrApp()) {
+ CSSIntSize size;
+ if (NS_FAILED(GetInnerSize(size))) {
+ return;
+ }
+
+ size.width += aWidthDif;
+ size.height += aHeightDif;
+
+ if (!DispatchResizeEvent(size)) {
+ // The embedder chose to prevent the default action for this
+ // event, so let's not resize this window after all...
+ return;
+ }
+ }
+
+ /*
+ * If caller is not chrome and the user has not explicitly exempted the site,
+ * prevent window.resizeBy() by exiting early
+ */
+
+ if (!CanMoveResizeWindows(aCallerIsChrome) || IsFrame()) {
+ return;
+ }
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+ if (!treeOwnerAsWin) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ int32_t width, height;
+ aError = treeOwnerAsWin->GetSize(&width, &height);
+ if (aError.Failed()) {
+ return;
+ }
+
+ // To do this correctly we have to convert what we got from GetSize
+ // into CSS pixels, add the arguments, do the security check, and
+ // then convert back to device pixels for the call to SetSize.
+
+ nsIntSize cssSize(DevToCSSIntPixels(nsIntSize(width, height)));
+
+ cssSize.width += aWidthDif;
+ cssSize.height += aHeightDif;
+
+ CheckSecurityWidthAndHeight(&cssSize.width, &cssSize.height, aCallerIsChrome);
+
+ nsIntSize newDevSize(CSSToDevIntPixels(cssSize));
+
+ aError = treeOwnerAsWin->SetSize(newDevSize.width, newDevSize.height, true);
+
+ CheckForDPIChange();
+}
+
+void
+nsGlobalWindow::ResizeBy(int32_t aWidthDif, int32_t aHeightDif,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(ResizeByOuter, (aWidthDif, aHeightDif, aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+void
+nsGlobalWindow::SizeToContentOuter(ErrorResult& aError, bool aCallerIsChrome)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return;
+ }
+
+ /*
+ * If caller is not chrome and the user has not explicitly exempted the site,
+ * prevent window.sizeToContent() by exiting early
+ */
+
+ if (!CanMoveResizeWindows(aCallerIsChrome) || IsFrame()) {
+ return;
+ }
+
+ // The content viewer does a check to make sure that it's a content
+ // viewer for a toplevel docshell.
+ nsCOMPtr<nsIContentViewer> cv;
+ mDocShell->GetContentViewer(getter_AddRefs(cv));
+ if (!cv) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ int32_t width, height;
+ aError = cv->GetContentSize(&width, &height);
+ if (aError.Failed()) {
+ return;
+ }
+
+ // Make sure the new size is following the CheckSecurityWidthAndHeight
+ // rules.
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner = GetTreeOwner();
+ if (!treeOwner) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ nsIntSize cssSize(DevToCSSIntPixels(nsIntSize(width, height)));
+ CheckSecurityWidthAndHeight(&cssSize.width, &cssSize.height, aCallerIsChrome);
+
+ nsIntSize newDevSize(CSSToDevIntPixels(cssSize));
+
+ aError = treeOwner->SizeShellTo(mDocShell, newDevSize.width,
+ newDevSize.height);
+}
+
+void
+nsGlobalWindow::SizeToContent(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SizeToContentOuter, (aError, nsContentUtils::IsCallerChrome()), aError, );
+}
+
+already_AddRefed<nsPIWindowRoot>
+nsGlobalWindow::GetTopWindowRoot()
+{
+ nsPIDOMWindowOuter* piWin = GetPrivateRoot();
+ if (!piWin) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsPIWindowRoot> window = do_QueryInterface(piWin->GetChromeEventHandler());
+ return window.forget();
+}
+
+void
+nsGlobalWindow::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
+nsGlobalWindow::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
+nsGlobalWindow::ScrollTo(const ScrollToOptions& aOptions)
+{
+ FlushPendingNotifications(Flush_Layout);
+ 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
+nsGlobalWindow::Scroll(const ScrollToOptions& aOptions)
+{
+ ScrollTo(aOptions);
+}
+
+void
+nsGlobalWindow::ScrollTo(const CSSIntPoint& aScroll,
+ const ScrollOptions& aOptions)
+{
+ FlushPendingNotifications(Flush_Layout);
+ 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->GetScrollbarStyles().IsSmoothScroll(aOptions.mBehavior);
+
+ sf->ScrollToCSSPixels(scroll, smoothScroll
+ ? nsIScrollableFrame::SMOOTH_MSD
+ : nsIScrollableFrame::INSTANT);
+ }
+}
+
+void
+nsGlobalWindow::ScrollBy(double aXScrollDif, double aYScrollDif)
+{
+ FlushPendingNotifications(Flush_Layout);
+ nsIScrollableFrame *sf = GetScrollFrame();
+
+ if (sf) {
+ // Convert -Inf, Inf, and NaN to 0; otherwise, convert by C-style cast.
+ auto scrollDif = CSSIntPoint::Truncate(mozilla::ToZeroIfNonfinite(aXScrollDif),
+ mozilla::ToZeroIfNonfinite(aYScrollDif));
+ // 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.
+ ScrollTo(sf->GetScrollPositionCSSPixels() + scrollDif, ScrollOptions());
+ }
+}
+
+void
+nsGlobalWindow::ScrollBy(const ScrollToOptions& aOptions)
+{
+ FlushPendingNotifications(Flush_Layout);
+ 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
+nsGlobalWindow::ScrollByLines(int32_t numLines,
+ const ScrollOptions& aOptions)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ FlushPendingNotifications(Flush_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->GetScrollbarStyles().IsSmoothScroll(aOptions.mBehavior);
+
+ sf->ScrollBy(nsIntPoint(0, numLines), nsIScrollableFrame::LINES,
+ smoothScroll
+ ? nsIScrollableFrame::SMOOTH_MSD
+ : nsIScrollableFrame::INSTANT);
+ }
+}
+
+void
+nsGlobalWindow::ScrollByPages(int32_t numPages,
+ const ScrollOptions& aOptions)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ FlushPendingNotifications(Flush_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->GetScrollbarStyles().IsSmoothScroll(aOptions.mBehavior);
+
+ sf->ScrollBy(nsIntPoint(0, numPages), nsIScrollableFrame::PAGES,
+ smoothScroll
+ ? nsIScrollableFrame::SMOOTH_MSD
+ : nsIScrollableFrame::INSTANT);
+ }
+}
+
+void
+nsGlobalWindow::MozScrollSnap()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ FlushPendingNotifications(Flush_Layout);
+ nsIScrollableFrame *sf = GetScrollFrame();
+ if (sf) {
+ sf->ScrollSnap();
+ }
+}
+
+void
+nsGlobalWindow::MozRequestOverfill(OverfillCallback& aCallback,
+ mozilla::ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsIWidget* widget = nsContentUtils::WidgetForDocument(mDoc);
+ if (widget) {
+ mozilla::layers::LayerManager* manager = widget->GetLayerManager();
+ if (manager) {
+ manager->RequestOverfill(&aCallback);
+ return;
+ }
+ }
+
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+}
+
+void
+nsGlobalWindow::ClearTimeout(int32_t aHandle)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (aHandle > 0) {
+ ClearTimeoutOrInterval(aHandle, Timeout::Reason::eTimeoutOrInterval);
+ }
+}
+
+void
+nsGlobalWindow::ClearInterval(int32_t aHandle)
+{
+ if (aHandle > 0) {
+ ClearTimeoutOrInterval(aHandle, Timeout::Reason::eTimeoutOrInterval);
+ }
+}
+
+void
+nsGlobalWindow::SetResizable(bool aResizable) const
+{
+ // nop
+}
+
+void
+nsGlobalWindow::CaptureEvents()
+{
+ if (mDoc) {
+ mDoc->WarnOnceAbout(nsIDocument::eUseOfCaptureEvents);
+ }
+}
+
+void
+nsGlobalWindow::ReleaseEvents()
+{
+ if (mDoc) {
+ mDoc->WarnOnceAbout(nsIDocument::eUseOfReleaseEvents);
+ }
+}
+
+static
+bool IsPopupBlocked(nsIDocument* aDoc)
+{
+ nsCOMPtr<nsIPopupWindowManager> pm =
+ do_GetService(NS_POPUPWINDOWMANAGER_CONTRACTID);
+
+ if (!pm) {
+ return false;
+ }
+
+ if (!aDoc) {
+ return true;
+ }
+
+ uint32_t permission = nsIPopupWindowManager::ALLOW_POPUP;
+ pm->TestPermission(aDoc->NodePrincipal(), &permission);
+ return permission == nsIPopupWindowManager::DENY_POPUP;
+}
+
+void
+nsGlobalWindow::FirePopupBlockedEvent(nsIDocument* aDoc,
+ nsIURI* aPopupURI,
+ const nsAString& aPopupWindowName,
+ const nsAString& aPopupWindowFeatures)
+{
+ MOZ_ASSERT(aDoc);
+
+ // Fire a "DOMPopupBlocked" event so that the UI can hear about
+ // blocked popups.
+ PopupBlockedEventInit init;
+ init.mBubbles = true;
+ init.mCancelable = true;
+ init.mRequestingWindow = this;
+ init.mPopupWindowURI = aPopupURI;
+ init.mPopupWindowName = aPopupWindowName;
+ init.mPopupWindowFeatures = aPopupWindowFeatures;
+
+ RefPtr<PopupBlockedEvent> event =
+ PopupBlockedEvent::Constructor(aDoc,
+ NS_LITERAL_STRING("DOMPopupBlocked"),
+ init);
+
+ event->SetTrusted(true);
+
+ bool defaultActionEnabled;
+ aDoc->DispatchEvent(event, &defaultActionEnabled);
+}
+
+// static
+bool
+nsGlobalWindow::CanSetProperty(const char *aPrefName)
+{
+ // Chrome can set any property.
+ if (nsContentUtils::LegacyIsCallerChromeOrNativeCode()) {
+ return true;
+ }
+
+ // If the pref is set to true, we can not set the property
+ // and vice versa.
+ return !Preferences::GetBool(aPrefName, true);
+}
+
+bool
+nsGlobalWindow::PopupWhitelisted()
+{
+ if (!IsPopupBlocked(mDoc))
+ return true;
+
+ nsCOMPtr<nsPIDOMWindowOuter> parent = GetParent();
+ if (parent == AsOuter())
+ {
+ return false;
+ }
+
+ return nsGlobalWindow::Cast(parent)->PopupWhitelisted();
+}
+
+/*
+ * Examine the current document state to see if we're in a way that is
+ * typically abused by web designers. The window.open code uses this
+ * routine to determine whether to allow the new window.
+ * Returns a value from the PopupControlState enum.
+ */
+PopupControlState
+nsGlobalWindow::RevisePopupAbuseLevel(PopupControlState aControl)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ NS_ASSERTION(mDocShell, "Must have docshell");
+
+ if (mDocShell->ItemType() != nsIDocShellTreeItem::typeContent) {
+ return openAllowed;
+ }
+
+ PopupControlState abuse = aControl;
+ switch (abuse) {
+ case openControlled:
+ case openAbused:
+ case openOverridden:
+ if (PopupWhitelisted())
+ abuse = PopupControlState(abuse - 1);
+ break;
+ case openAllowed: break;
+ default:
+ NS_WARNING("Strange PopupControlState!");
+ }
+
+ // limit the number of simultaneously open popups
+ if (abuse == openAbused || abuse == openControlled) {
+ int32_t popupMax = Preferences::GetInt("dom.popup_maximum", -1);
+ if (popupMax >= 0 && gOpenPopupSpamCount >= popupMax)
+ abuse = openOverridden;
+ }
+
+ return abuse;
+}
+
+/* If a window open is blocked, fire the appropriate DOM events. */
+void
+nsGlobalWindow::FireAbuseEvents(const nsAString &aPopupURL,
+ const nsAString &aPopupWindowName,
+ const nsAString &aPopupWindowFeatures)
+{
+ // fetch the URI of the window requesting the opened window
+
+ nsCOMPtr<nsPIDOMWindowOuter> window = GetTop();
+ if (!window) {
+ return;
+ }
+
+ nsCOMPtr<nsIDocument> topDoc = window->GetDoc();
+ nsCOMPtr<nsIURI> popupURI;
+
+ // build the URI of the would-have-been popup window
+ // (see nsWindowWatcher::URIfromURL)
+
+ // first, fetch the opener's base URI
+
+ nsIURI *baseURL = nullptr;
+
+ nsCOMPtr<nsIDocument> doc = GetEntryDocument();
+ if (doc)
+ baseURL = doc->GetDocBaseURI();
+
+ // use the base URI to build what would have been the popup's URI
+ nsCOMPtr<nsIIOService> ios(do_GetService(NS_IOSERVICE_CONTRACTID));
+ if (ios)
+ ios->NewURI(NS_ConvertUTF16toUTF8(aPopupURL), 0, baseURL,
+ getter_AddRefs(popupURI));
+
+ // fire an event chock full of informative URIs
+ FirePopupBlockedEvent(topDoc, popupURI, aPopupWindowName,
+ aPopupWindowFeatures);
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::OpenOuter(const nsAString& aUrl, const nsAString& aName,
+ const nsAString& aOptions, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ nsCOMPtr<nsPIDOMWindowOuter> window;
+ aError = OpenJS(aUrl, aName, aOptions, getter_AddRefs(window));
+ return window.forget();
+}
+
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::Open(const nsAString& aUrl, const nsAString& aName,
+ const nsAString& aOptions, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(OpenOuter, (aUrl, aName, aOptions, aError), aError,
+ nullptr);
+}
+
+nsresult
+nsGlobalWindow::Open(const nsAString& aUrl, const nsAString& aName,
+ const nsAString& aOptions, nsIDocShellLoadInfo* aLoadInfo,
+ bool aForceNoOpener, nsPIDOMWindowOuter **_retval)
+{
+ FORWARD_TO_OUTER(Open, (aUrl, aName, aOptions, aLoadInfo, aForceNoOpener,
+ _retval),
+ NS_ERROR_NOT_INITIALIZED);
+ return OpenInternal(aUrl, aName, aOptions,
+ false, // aDialog
+ false, // aContentModal
+ true, // aCalledNoScript
+ false, // aDoJSFixups
+ true, // aNavigate
+ nullptr, nullptr, // No args
+ aLoadInfo,
+ aForceNoOpener,
+ _retval);
+}
+
+nsresult
+nsGlobalWindow::OpenJS(const nsAString& aUrl, const nsAString& aName,
+ const nsAString& aOptions, nsPIDOMWindowOuter **_retval)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ return OpenInternal(aUrl, aName, aOptions,
+ false, // aDialog
+ false, // aContentModal
+ false, // aCalledNoScript
+ true, // aDoJSFixups
+ true, // aNavigate
+ nullptr, nullptr, // No args
+ nullptr, // aLoadInfo
+ false, // aForceNoOpener
+ _retval);
+}
+
+// like Open, but attaches to the new window any extra parameters past
+// [features] as a JS property named "arguments"
+nsresult
+nsGlobalWindow::OpenDialog(const nsAString& aUrl, const nsAString& aName,
+ const nsAString& aOptions,
+ nsISupports* aExtraArgument,
+ nsPIDOMWindowOuter** _retval)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ return OpenInternal(aUrl, aName, aOptions,
+ true, // aDialog
+ false, // aContentModal
+ true, // aCalledNoScript
+ false, // aDoJSFixups
+ true, // aNavigate
+ nullptr, aExtraArgument, // Arguments
+ nullptr, // aLoadInfo
+ false, // aForceNoOpener
+ _retval);
+}
+
+// Like Open, but passes aNavigate=false.
+/* virtual */ nsresult
+nsGlobalWindow::OpenNoNavigate(const nsAString& aUrl,
+ const nsAString& aName,
+ const nsAString& aOptions,
+ nsPIDOMWindowOuter **_retval)
+{
+ MOZ_ASSERT(IsOuterWindow());
+ return OpenInternal(aUrl, aName, aOptions,
+ false, // aDialog
+ false, // aContentModal
+ true, // aCalledNoScript
+ false, // aDoJSFixups
+ false, // aNavigate
+ nullptr, nullptr, // No args
+ nullptr, // aLoadInfo
+ false, // aForceNoOpener
+ _retval);
+
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::OpenDialogOuter(JSContext* aCx, const nsAString& aUrl,
+ const nsAString& aName, const nsAString& aOptions,
+ const Sequence<JS::Value>& aExtraArgument,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIJSArgArray> argvArray;
+ aError = NS_CreateJSArgv(aCx, aExtraArgument.Length(),
+ aExtraArgument.Elements(),
+ getter_AddRefs(argvArray));
+ if (aError.Failed()) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> dialog;
+ aError = OpenInternal(aUrl, aName, aOptions,
+ true, // aDialog
+ false, // aContentModal
+ false, // aCalledNoScript
+ false, // aDoJSFixups
+ true, // aNavigate
+ argvArray, nullptr, // Arguments
+ nullptr, // aLoadInfo
+ false, // aForceNoOpener
+ getter_AddRefs(dialog));
+ return dialog.forget();
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::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);
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetFramesOuter()
+{
+ RefPtr<nsPIDOMWindowOuter> frames(AsOuter());
+ FlushPendingNotifications(Flush_ContentAndNotify);
+ return frames.forget();
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+nsGlobalWindow::GetFrames(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetFramesOuter, (), aError, nullptr);
+}
+
+nsGlobalWindow*
+nsGlobalWindow::CallerInnerWindow()
+{
+ JSContext *cx = nsContentUtils::GetCurrentJSContext();
+ NS_ENSURE_TRUE(cx, nullptr);
+ nsIGlobalObject* global = GetIncumbentGlobal();
+ NS_ENSURE_TRUE(global, nullptr);
+ JS::Rooted<JSObject*> scope(cx, global->GetGlobalJSObject());
+ NS_ENSURE_TRUE(scope, nullptr);
+
+ // When Jetpack runs content scripts inside a sandbox, it uses
+ // sandboxPrototype to make them appear as though they're running in the
+ // scope of the page. So when a content script invokes postMessage, it expects
+ // the |source| of the received message to be the window set as the
+ // sandboxPrototype. This used to work incidentally for unrelated reasons, but
+ // now we need to do some special handling to support it.
+ if (xpc::IsSandbox(scope)) {
+ JSAutoCompartment ac(cx, scope);
+ JS::Rooted<JSObject*> scopeProto(cx);
+ bool ok = JS_GetPrototype(cx, scope, &scopeProto);
+ NS_ENSURE_TRUE(ok, nullptr);
+ if (scopeProto && xpc::IsSandboxPrototypeProxy(scopeProto) &&
+ (scopeProto = js::CheckedUnwrap(scopeProto, /* stopAtWindowProxy = */ false)))
+ {
+ global = xpc::NativeGlobal(scopeProto);
+ NS_ENSURE_TRUE(global, nullptr);
+ }
+ }
+
+ // The calling window must be holding a reference, so we can return a weak
+ // pointer.
+ nsCOMPtr<nsPIDOMWindowInner> win = do_QueryInterface(global);
+ return nsGlobalWindow::Cast(win);
+}
+
+void
+nsGlobalWindow::PostMessageMozOuter(JSContext* aCx, JS::Handle<JS::Value> aMessage,
+ const nsAString& aTargetOrigin,
+ JS::Handle<JS::Value> aTransfer,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ //
+ // Window.postMessage is an intentional subversion of the same-origin policy.
+ // As such, this code must be particularly careful in the information it
+ // exposes to calling code.
+ //
+ // http://www.whatwg.org/specs/web-apps/current-work/multipage/section-crossDocumentMessages.html
+ //
+
+ // First, get the caller's window
+ RefPtr<nsGlobalWindow> callerInnerWin = CallerInnerWindow();
+ nsIPrincipal* callerPrin;
+ if (callerInnerWin) {
+ MOZ_ASSERT(callerInnerWin->IsInnerWindow(),
+ "should have gotten an inner window here");
+
+ // Compute the caller's origin either from its principal or, in the case the
+ // principal doesn't carry a URI (e.g. the system principal), the caller's
+ // document. We must get this now instead of when the event is created and
+ // dispatched, because ultimately it is the identity of the calling window
+ // *now* that determines who sent the message (and not an identity which might
+ // have changed due to intervening navigations).
+ callerPrin = callerInnerWin->GetPrincipal();
+ }
+ else {
+ // In case the global is not a window, it can be a sandbox, and the sandbox's
+ // principal can be used for the security check.
+ nsIGlobalObject* global = GetIncumbentGlobal();
+ NS_ASSERTION(global, "Why is there no global object?");
+ callerPrin = global->PrincipalOrNull();
+ }
+ if (!callerPrin) {
+ return;
+ }
+
+ nsCOMPtr<nsIURI> callerOuterURI;
+ if (NS_FAILED(callerPrin->GetURI(getter_AddRefs(callerOuterURI)))) {
+ return;
+ }
+
+ nsAutoString origin;
+ if (callerOuterURI) {
+ // if the principal has a URI, use that to generate the origin
+ nsContentUtils::GetUTFOrigin(callerPrin, origin);
+ }
+ else if (callerInnerWin) {
+ // otherwise use the URI of the document to generate origin
+ nsCOMPtr<nsIDocument> doc = callerInnerWin->GetExtantDoc();
+ if (!doc) {
+ return;
+ }
+ callerOuterURI = doc->GetDocumentURI();
+ // if the principal has a URI, use that to generate the origin
+ nsContentUtils::GetUTFOrigin(callerOuterURI, origin);
+ }
+ else {
+ // in case of a sandbox with a system principal origin can be empty
+ if (!nsContentUtils::IsSystemPrincipal(callerPrin)) {
+ return;
+ }
+ }
+
+ // Convert the provided origin string into a URI for comparison purposes.
+ nsCOMPtr<nsIPrincipal> providedPrincipal;
+
+ if (aTargetOrigin.EqualsASCII("/")) {
+ providedPrincipal = callerPrin;
+ }
+ // "*" indicates no specific origin is required.
+ else if (!aTargetOrigin.EqualsASCII("*")) {
+ nsCOMPtr<nsIURI> originURI;
+ if (NS_FAILED(NS_NewURI(getter_AddRefs(originURI), aTargetOrigin))) {
+ aError.Throw(NS_ERROR_DOM_SYNTAX_ERR);
+ return;
+ }
+
+ if (NS_FAILED(originURI->SetUserPass(EmptyCString())) ||
+ NS_FAILED(originURI->SetPath(EmptyCString()))) {
+ return;
+ }
+
+ PrincipalOriginAttributes attrs =
+ BasePrincipal::Cast(&aSubjectPrincipal)->OriginAttributesRef();
+ if (aSubjectPrincipal.GetIsSystemPrincipal()) {
+ auto principal = BasePrincipal::Cast(GetPrincipal());
+
+ if (attrs != principal->OriginAttributesRef()) {
+ nsCOMPtr<nsIURI> targetURI;
+ nsAutoCString targetURL;
+ nsAutoCString sourceOrigin;
+ nsAutoCString targetOrigin;
+
+ if (NS_FAILED(principal->GetURI(getter_AddRefs(targetURI))) ||
+ NS_FAILED(targetURI->GetAsciiSpec(targetURL)) ||
+ NS_FAILED(principal->GetOrigin(targetOrigin)) ||
+ NS_FAILED(aSubjectPrincipal.GetOrigin(sourceOrigin))) {
+ NS_WARNING("Failed to get source and target origins");
+ return;
+ }
+
+ nsContentUtils::LogSimpleConsoleError(
+ NS_ConvertUTF8toUTF16(nsPrintfCString(
+ "Attempting to post a message to window with url \"%s\" and "
+ "origin \"%s\" from a system principal scope with mismatched "
+ "origin \"%s\".",
+ targetURL.get(), targetOrigin.get(), sourceOrigin.get())),
+ "DOM");
+
+ attrs = principal->OriginAttributesRef();
+ }
+ }
+
+ // Create a nsIPrincipal inheriting the app/browser attributes from the
+ // caller.
+ providedPrincipal = BasePrincipal::CreateCodebasePrincipal(originURI, attrs);
+ if (NS_WARN_IF(!providedPrincipal)) {
+ return;
+ }
+ }
+
+ // Create and asynchronously dispatch a runnable which will handle actual DOM
+ // event creation and dispatch.
+ RefPtr<PostMessageEvent> event =
+ new PostMessageEvent(nsContentUtils::IsCallerChrome() || !callerInnerWin
+ ? nullptr
+ : callerInnerWin->GetOuterWindowInternal(),
+ origin,
+ this,
+ providedPrincipal,
+ callerInnerWin
+ ? callerInnerWin->GetDoc()
+ : nullptr,
+ nsContentUtils::IsCallerChrome());
+
+ JS::Rooted<JS::Value> message(aCx, aMessage);
+ JS::Rooted<JS::Value> transfer(aCx, aTransfer);
+
+ event->Write(aCx, message, transfer, JS::CloneDataPolicy(), aError);
+ if (NS_WARN_IF(aError.Failed())) {
+ return;
+ }
+
+ aError = NS_DispatchToCurrentThread(event);
+}
+
+void
+nsGlobalWindow::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
+nsGlobalWindow::PostMessageMoz(JSContext* aCx, JS::Handle<JS::Value> aMessage,
+ const nsAString& aTargetOrigin,
+ const Optional<Sequence<JS::Value>>& aTransfer,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ JS::Rooted<JS::Value> transferArray(aCx, JS::UndefinedValue());
+ if (aTransfer.WasPassed()) {
+ const Sequence<JS::Value >& values = aTransfer.Value();
+
+ // The input sequence only comes from the generated bindings code, which
+ // ensures it is rooted.
+ JS::HandleValueArray elements =
+ JS::HandleValueArray::fromMarkedLocation(values.Length(), values.Elements());
+
+ transferArray = JS::ObjectOrNullValue(JS_NewArrayObject(aCx, elements));
+ if (transferArray.isNull()) {
+ aError.Throw(NS_ERROR_OUT_OF_MEMORY);
+ return;
+ }
+ }
+
+ PostMessageMoz(aCx, aMessage, aTargetOrigin, transferArray,
+ aSubjectPrincipal, aError);
+}
+
+class nsCloseEvent : public Runnable {
+
+ RefPtr<nsGlobalWindow> mWindow;
+ bool mIndirect;
+
+ nsCloseEvent(nsGlobalWindow *aWindow, bool aIndirect)
+ : mWindow(aWindow)
+ , mIndirect(aIndirect)
+ {}
+
+public:
+
+ static nsresult
+ PostCloseEvent(nsGlobalWindow* aWindow, bool aIndirect) {
+ nsCOMPtr<nsIRunnable> ev = new nsCloseEvent(aWindow, aIndirect);
+ nsresult rv = NS_DispatchToCurrentThread(ev);
+ if (NS_SUCCEEDED(rv))
+ aWindow->MaybeForgiveSpamCount();
+ return rv;
+ }
+
+ NS_IMETHOD Run() override {
+ if (mWindow) {
+ if (mIndirect) {
+ return PostCloseEvent(mWindow, false);
+ }
+ mWindow->ReallyCloseWindow();
+ }
+ return NS_OK;
+ }
+
+};
+
+bool
+nsGlobalWindow::CanClose()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (mIsChrome) {
+ nsCOMPtr<nsIBrowserDOMWindow> bwin;
+ nsIDOMChromeWindow* chromeWin = static_cast<nsGlobalChromeWindow*>(this);
+ chromeWin->GetBrowserDOMWindow(getter_AddRefs(bwin));
+
+ bool canClose = true;
+ if (bwin && NS_SUCCEEDED(bwin->CanClose(&canClose))) {
+ return canClose;
+ }
+ }
+
+ if (!mDocShell) {
+ return true;
+ }
+
+ // Ask the content viewer whether the toplevel window can close.
+ // If the content viewer returns false, it is responsible for calling
+ // Close() as soon as it is possible for the window to close.
+ // This allows us to not close the window while printing is happening.
+
+ nsCOMPtr<nsIContentViewer> cv;
+ mDocShell->GetContentViewer(getter_AddRefs(cv));
+ if (cv) {
+ bool canClose;
+ nsresult rv = cv->PermitUnload(&canClose);
+ if (NS_SUCCEEDED(rv) && !canClose)
+ return false;
+
+ rv = cv->RequestWindowClose(&canClose);
+ if (NS_SUCCEEDED(rv) && !canClose)
+ return false;
+ }
+
+ return true;
+}
+
+void
+nsGlobalWindow::CloseOuter(bool aTrustedCaller)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell || IsInModalState() ||
+ (IsFrame() && !mDocShell->GetIsMozBrowserOrApp())) {
+ // window.close() is called on a frame in a frameset, on a window
+ // that's already closed, or on a window for which there's
+ // currently a modal dialog open. Ignore such calls.
+ return;
+ }
+
+ if (mHavePendingClose) {
+ // We're going to be closed anyway; do nothing since we don't want
+ // to double-close
+ return;
+ }
+
+ if (mBlockScriptedClosingFlag)
+ {
+ // A script's popup has been blocked and we don't want
+ // the window to be closed directly after this event,
+ // so the user can see that there was a blocked popup.
+ return;
+ }
+
+ // Don't allow scripts from content to close non-app or non-neterror
+ // windows that were not opened by script.
+ nsAutoString url;
+ nsresult rv = mDoc->GetURL(url);
+ NS_ENSURE_SUCCESS_VOID(rv);
+
+ if (!mDocShell->GetIsApp() &&
+ !StringBeginsWith(url, NS_LITERAL_STRING("about:neterror")) &&
+ !mHadOriginalOpener && !aTrustedCaller) {
+ bool allowClose = mAllowScriptsToClose ||
+ Preferences::GetBool("dom.allow_scripts_to_close_windows", true);
+ if (!allowClose) {
+ // We're blocking the close operation
+ // report localized error msg in JS console
+ nsContentUtils::ReportToConsole(
+ nsIScriptError::warningFlag,
+ NS_LITERAL_CSTRING("DOM Window"), mDoc, // Better name for the category?
+ nsContentUtils::eDOM_PROPERTIES,
+ "WindowCloseBlockedWarning");
+
+ return;
+ }
+ }
+
+ if (!mInClose && !mIsClosed && !CanClose()) {
+ return;
+ }
+
+ // Fire a DOM event notifying listeners that this window is about to
+ // be closed. The tab UI code may choose to cancel the default
+ // action for this event, if so, we won't actually close the window
+ // (since the tab UI code will close the tab in stead). Sure, this
+ // could be abused by content code, but do we care? I don't think
+ // so...
+
+ bool wasInClose = mInClose;
+ mInClose = true;
+
+ if (!DispatchCustomEvent(NS_LITERAL_STRING("DOMWindowClose"))) {
+ // Someone chose to prevent the default action for this event, if
+ // so, let's not close this window after all...
+
+ mInClose = wasInClose;
+ return;
+ }
+
+ FinalClose();
+}
+
+void
+nsGlobalWindow::Close(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(CloseOuter, (nsContentUtils::IsCallerChrome()), aError, );
+}
+
+nsresult
+nsGlobalWindow::Close()
+{
+ FORWARD_TO_OUTER(Close, (), NS_ERROR_UNEXPECTED);
+ CloseOuter(/* aTrustedCaller = */ true);
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::ForceClose()
+{
+ MOZ_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Default);
+
+ if (IsFrame() || !mDocShell) {
+ // This may be a frame in a frameset, or a window that's already closed.
+ // Ignore such calls.
+ return;
+ }
+
+ if (mHavePendingClose) {
+ // We're going to be closed anyway; do nothing since we don't want
+ // to double-close
+ return;
+ }
+
+ mInClose = true;
+
+ DispatchCustomEvent(NS_LITERAL_STRING("DOMWindowClose"));
+
+ FinalClose();
+}
+
+void
+nsGlobalWindow::FinalClose()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // Flag that we were closed.
+ mIsClosed = true;
+
+ // If we get here from CloseOuter then it means that the parent process is
+ // going to close our window for us. It's just important to set mIsClosed.
+ if (XRE_GetProcessType() == GeckoProcessType_Content) {
+ return;
+ }
+
+ // This stuff is non-sensical but incredibly fragile. The reasons for the
+ // behavior here don't make sense today and may not have ever made sense,
+ // but various bits of frontend code break when you change them. If you need
+ // to fix up this behavior, feel free to. It's a righteous task, but involves
+ // wrestling with various download manager tests, frontend code, and possible
+ // broken addons. The chrome tests in toolkit/mozapps/downloads are a good
+ // testing ground.
+ //
+ // In particular, if some inner of |win| is the entry global, we must
+ // complete _two_ round-trips to the event loop before the call to
+ // ReallyCloseWindow. This allows setTimeout handlers that are set after
+ // FinalClose() is called to run before the window is torn down.
+ nsCOMPtr<nsPIDOMWindowInner> entryWindow =
+ do_QueryInterface(GetEntryGlobal());
+ bool indirect =
+ entryWindow && entryWindow->GetOuterWindow() == this->AsOuter();
+ if (NS_FAILED(nsCloseEvent::PostCloseEvent(this, indirect))) {
+ ReallyCloseWindow();
+ } else {
+ mHavePendingClose = true;
+ }
+}
+
+
+void
+nsGlobalWindow::ReallyCloseWindow()
+{
+ FORWARD_TO_OUTER_VOID(ReallyCloseWindow, ());
+
+ // Make sure we never reenter this method.
+ mHavePendingClose = true;
+
+ nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = GetTreeOwnerWindow();
+
+ // If there's no treeOwnerAsWin, this window must already be closed.
+
+ if (treeOwnerAsWin) {
+
+ // but if we're a browser window we could be in some nasty
+ // self-destroying cascade that we should mostly ignore
+
+ if (mDocShell) {
+ nsCOMPtr<nsIBrowserDOMWindow> bwin;
+ nsCOMPtr<nsIDocShellTreeItem> rootItem;
+ mDocShell->GetRootTreeItem(getter_AddRefs(rootItem));
+ nsCOMPtr<nsPIDOMWindowOuter> rootWin =
+ rootItem ? rootItem->GetWindow() : nullptr;
+ nsCOMPtr<nsIDOMChromeWindow> chromeWin(do_QueryInterface(rootWin));
+ if (chromeWin)
+ chromeWin->GetBrowserDOMWindow(getter_AddRefs(bwin));
+
+ if (rootWin) {
+ /* Normally we destroy the entire window, but not if
+ this DOM window belongs to a tabbed browser and doesn't
+ correspond to a tab. This allows a well-behaved tab
+ to destroy the container as it should but is a final measure
+ to prevent an errant tab from doing so when it shouldn't.
+ This works because we reach this code when we shouldn't only
+ in the particular circumstance that we belong to a tab
+ that has just been closed (and is therefore already missing
+ from the list of browsers) (and has an unload handler
+ that closes the window). */
+ // XXXbz now that we have mHavePendingClose, is this needed?
+ bool isTab = false;
+ if (rootWin == AsOuter() ||
+ !bwin || (bwin->IsTabContentWindow(GetOuterWindowInternal(),
+ &isTab), isTab))
+ treeOwnerAsWin->Destroy();
+ }
+ }
+
+ CleanUp();
+ }
+}
+
+void
+nsGlobalWindow::EnterModalState()
+{
+ MOZ_ASSERT(IsOuterWindow(), "Modal state is maintained on outer windows");
+
+ // GetScriptableTop, not GetTop, so that EnterModalState works properly with
+ // <iframe mozbrowser>.
+ nsGlobalWindow* topWin = GetScriptableTopInternal();
+
+ if (!topWin) {
+ NS_ERROR("Uh, EnterModalState() called w/o a reachable top window?");
+ return;
+ }
+
+ // If there is an active ESM in this window, clear it. Otherwise, this can
+ // cause a problem if a modal state is entered during a mouseup event.
+ EventStateManager* activeESM =
+ static_cast<EventStateManager*>(
+ EventStateManager::GetActiveEventStateManager());
+ if (activeESM && activeESM->GetPresContext()) {
+ nsIPresShell* activeShell = activeESM->GetPresContext()->GetPresShell();
+ if (activeShell && (
+ nsContentUtils::ContentIsCrossDocDescendantOf(activeShell->GetDocument(), mDoc) ||
+ nsContentUtils::ContentIsCrossDocDescendantOf(mDoc, activeShell->GetDocument()))) {
+ EventStateManager::ClearGlobalActiveContent(activeESM);
+
+ activeShell->SetCapturingContent(nullptr, 0);
+
+ if (activeShell) {
+ RefPtr<nsFrameSelection> frameSelection = activeShell->FrameSelection();
+ frameSelection->SetDragState(false);
+ }
+ }
+ }
+
+ // If there are any drag and drop operations in flight, try to end them.
+ nsCOMPtr<nsIDragService> ds =
+ do_GetService("@mozilla.org/widget/dragservice;1");
+ if (ds) {
+ ds->EndDragSession(true);
+ }
+
+ // Clear the capturing content if it is under topDoc.
+ // Usually the activeESM check above does that, but there are cases when
+ // we don't have activeESM, or it is for different document.
+ nsIDocument* topDoc = topWin->GetExtantDoc();
+ nsIContent* capturingContent = nsIPresShell::GetCapturingContent();
+ if (capturingContent && topDoc &&
+ nsContentUtils::ContentIsCrossDocDescendantOf(capturingContent, topDoc)) {
+ nsIPresShell::SetCapturingContent(nullptr, 0);
+ }
+
+ if (topWin->mModalStateDepth == 0) {
+ NS_ASSERTION(!topWin->mSuspendedDoc, "Shouldn't have mSuspendedDoc here!");
+
+ topWin->mSuspendedDoc = topDoc;
+ if (topDoc) {
+ topDoc->SuppressEventHandling(nsIDocument::eAnimationsOnly);
+ }
+
+ nsGlobalWindow* inner = topWin->GetCurrentInnerWindowInternal();
+ if (inner) {
+ topWin->GetCurrentInnerWindowInternal()->Suspend();
+ }
+ }
+ topWin->mModalStateDepth++;
+}
+
+void
+nsGlobalWindow::LeaveModalState()
+{
+ MOZ_ASSERT(IsOuterWindow(), "Modal state is maintained on outer windows");
+
+ nsGlobalWindow* topWin = GetScriptableTopInternal();
+
+ if (!topWin) {
+ NS_ERROR("Uh, LeaveModalState() called w/o a reachable top window?");
+ return;
+ }
+
+ MOZ_ASSERT(topWin->mModalStateDepth != 0);
+ MOZ_ASSERT(IsSuspended());
+ MOZ_ASSERT(topWin->IsSuspended());
+ topWin->mModalStateDepth--;
+
+ nsGlobalWindow* inner = topWin->GetCurrentInnerWindowInternal();
+
+ if (topWin->mModalStateDepth == 0) {
+ if (inner) {
+ inner->Resume();
+ }
+
+ if (topWin->mSuspendedDoc) {
+ nsCOMPtr<nsIDocument> currentDoc = topWin->GetExtantDoc();
+ topWin->mSuspendedDoc->UnsuppressEventHandlingAndFireEvents(nsIDocument::eAnimationsOnly,
+ currentDoc == topWin->mSuspendedDoc);
+ topWin->mSuspendedDoc = nullptr;
+ }
+ }
+
+ // Remember the time of the last dialog quit.
+ if (inner) {
+ inner->mLastDialogQuitTime = TimeStamp::Now();
+ }
+
+ if (topWin->mModalStateDepth == 0) {
+ RefPtr<Event> event = NS_NewDOMEvent(inner, nullptr, nullptr);
+ event->InitEvent(NS_LITERAL_STRING("endmodalstate"), true, false);
+ event->SetTrusted(true);
+ event->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
+ bool dummy;
+ topWin->DispatchEvent(event, &dummy);
+ }
+}
+
+bool
+nsGlobalWindow::IsInModalState()
+{
+ nsGlobalWindow *topWin = GetScriptableTopInternal();
+
+ if (!topWin) {
+ // IsInModalState() getting called w/o a reachable top window is a bit
+ // iffy, but valid enough not to make noise about it. See bug 404828
+ return false;
+ }
+
+ return topWin->mModalStateDepth != 0;
+}
+
+// static
+void
+nsGlobalWindow::NotifyDOMWindowDestroyed(nsGlobalWindow* aWindow) {
+ nsCOMPtr<nsIObserverService> observerService =
+ services::GetObserverService();
+ if (observerService) {
+ observerService->
+ NotifyObservers(ToSupports(aWindow),
+ DOM_WINDOW_DESTROYED_TOPIC, nullptr);
+ }
+}
+
+// Try to match compartments that are not web content by matching compartments
+// with principals that are either the system principal or an expanded principal.
+// This may not return true for all non-web-content compartments.
+struct BrowserCompartmentMatcher : public js::CompartmentFilter {
+ virtual bool match(JSCompartment* c) const override
+ {
+ nsCOMPtr<nsIPrincipal> pc = nsJSPrincipals::get(JS_GetCompartmentPrincipals(c));
+ return nsContentUtils::IsSystemOrExpandedPrincipal(pc);
+ }
+};
+
+
+class WindowDestroyedEvent : public Runnable
+{
+public:
+ WindowDestroyedEvent(nsIDOMWindow* aWindow, uint64_t aID,
+ const char* aTopic) :
+ mID(aID), mTopic(aTopic)
+ {
+ mWindow = do_GetWeakReference(aWindow);
+ }
+
+ NS_IMETHOD Run() override
+ {
+ nsCOMPtr<nsIObserverService> observerService =
+ services::GetObserverService();
+ if (observerService) {
+ nsCOMPtr<nsISupportsPRUint64> wrapper =
+ do_CreateInstance(NS_SUPPORTS_PRUINT64_CONTRACTID);
+ if (wrapper) {
+ wrapper->SetData(mID);
+ observerService->NotifyObservers(wrapper, mTopic.get(), nullptr);
+ }
+ }
+
+ bool skipNukeCrossCompartment = false;
+#ifndef DEBUG
+ nsCOMPtr<nsIAppStartup> appStartup =
+ do_GetService(NS_APPSTARTUP_CONTRACTID);
+
+ if (appStartup) {
+ appStartup->GetShuttingDown(&skipNukeCrossCompartment);
+ }
+#endif
+
+ nsCOMPtr<nsISupports> window = do_QueryReferent(mWindow);
+ if (!skipNukeCrossCompartment && window) {
+ nsGlobalWindow* win = nsGlobalWindow::FromSupports(window);
+ nsGlobalWindow* currentInner = win->IsInnerWindow() ? win : win->GetCurrentInnerWindowInternal();
+ NS_ENSURE_TRUE(currentInner, NS_OK);
+
+ AutoSafeJSContext cx;
+ JS::Rooted<JSObject*> obj(cx, currentInner->FastGetGlobalJSObject());
+ // We only want to nuke wrappers for the chrome->content case
+ if (obj && !js::IsSystemCompartment(js::GetObjectCompartment(obj))) {
+ js::NukeCrossCompartmentWrappers(cx,
+ BrowserCompartmentMatcher(),
+ js::SingleCompartment(js::GetObjectCompartment(obj)),
+ win->IsInnerWindow() ? js::DontNukeWindowReferences
+ : js::NukeWindowReferences);
+ }
+ }
+
+ return NS_OK;
+ }
+
+private:
+ uint64_t mID;
+ nsCString mTopic;
+ nsWeakPtr mWindow;
+};
+
+void
+nsGlobalWindow::NotifyWindowIDDestroyed(const char* aTopic)
+{
+ nsCOMPtr<nsIRunnable> runnable = new WindowDestroyedEvent(this, mWindowID, aTopic);
+ nsresult rv = NS_DispatchToCurrentThread(runnable);
+ if (NS_SUCCEEDED(rv)) {
+ mNotifiedIDDestroyed = true;
+ }
+}
+
+// static
+void
+nsGlobalWindow::NotifyDOMWindowFrozen(nsGlobalWindow* aWindow) {
+ if (aWindow && aWindow->IsInnerWindow()) {
+ nsCOMPtr<nsIObserverService> observerService =
+ services::GetObserverService();
+ if (observerService) {
+ observerService->
+ NotifyObservers(ToSupports(aWindow),
+ DOM_WINDOW_FROZEN_TOPIC, nullptr);
+ }
+ }
+}
+
+// static
+void
+nsGlobalWindow::NotifyDOMWindowThawed(nsGlobalWindow* aWindow) {
+ if (aWindow && aWindow->IsInnerWindow()) {
+ nsCOMPtr<nsIObserverService> observerService =
+ services::GetObserverService();
+ if (observerService) {
+ observerService->
+ NotifyObservers(ToSupports(aWindow),
+ DOM_WINDOW_THAWED_TOPIC, nullptr);
+ }
+ }
+}
+
+JSObject*
+nsGlobalWindow::GetCachedXBLPrototypeHandler(nsXBLPrototypeHandler* aKey)
+{
+ JS::Rooted<JSObject*> handler(RootingCx());
+ if (mCachedXBLPrototypeHandlers) {
+ mCachedXBLPrototypeHandlers->Get(aKey, handler.address());
+ }
+ return handler;
+}
+
+void
+nsGlobalWindow::CacheXBLPrototypeHandler(nsXBLPrototypeHandler* aKey,
+ JS::Handle<JSObject*> aHandler)
+{
+ if (!mCachedXBLPrototypeHandlers) {
+ mCachedXBLPrototypeHandlers = new XBLPrototypeHandlerTable();
+ PreserveWrapper(ToSupports(this));
+ }
+
+ mCachedXBLPrototypeHandlers->Put(aKey, aHandler);
+}
+
+Element*
+nsGlobalWindow::GetFrameElementOuter(nsIPrincipal& aSubjectPrincipal)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell || mDocShell->GetIsMozBrowserOrApp()) {
+ return nullptr;
+ }
+
+ // Per HTML5, the frameElement getter returns null in cross-origin situations.
+ Element* element = GetRealFrameElementOuter();
+ if (!element) {
+ return nullptr;
+ }
+
+ if (!aSubjectPrincipal.SubsumesConsideringDomain(element->NodePrincipal())) {
+ return nullptr;
+ }
+
+ return element;
+}
+
+Element*
+nsGlobalWindow::GetFrameElement(nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetFrameElementOuter, (aSubjectPrincipal), aError,
+ nullptr);
+}
+
+Element*
+nsGlobalWindow::GetRealFrameElementOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDocShell> parent;
+ mDocShell->GetSameTypeParentIgnoreBrowserAndAppBoundaries(getter_AddRefs(parent));
+
+ if (!parent || parent == mDocShell) {
+ // We're at a chrome boundary, don't expose the chrome iframe
+ // element to content code.
+ return nullptr;
+ }
+
+ return mFrameElement;
+}
+
+Element*
+nsGlobalWindow::GetRealFrameElement(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetRealFrameElementOuter, (), aError, nullptr);
+}
+
+/**
+ * nsIGlobalWindow::GetFrameElement (when called from C++) is just a wrapper
+ * around GetRealFrameElement.
+ */
+already_AddRefed<nsIDOMElement>
+nsGlobalWindow::GetFrameElement()
+{
+ FORWARD_TO_INNER(GetFrameElement, (), nullptr);
+
+ ErrorResult dummy;
+ nsCOMPtr<nsIDOMElement> frameElement =
+ do_QueryInterface(GetRealFrameElement(dummy));
+ dummy.SuppressException();
+ return frameElement.forget();
+}
+
+/* static */ bool
+nsGlobalWindow::TokenizeDialogOptions(nsAString& aToken,
+ nsAString::const_iterator& aIter,
+ nsAString::const_iterator aEnd)
+{
+ while (aIter != aEnd && nsCRT::IsAsciiSpace(*aIter)) {
+ ++aIter;
+ }
+
+ if (aIter == aEnd) {
+ return false;
+ }
+
+ if (*aIter == ';' || *aIter == ':' || *aIter == '=') {
+ aToken.Assign(*aIter);
+ ++aIter;
+ return true;
+ }
+
+ nsAString::const_iterator start = aIter;
+
+ // Skip characters until we find whitespace, ';', ':', or '='
+ while (aIter != aEnd && !nsCRT::IsAsciiSpace(*aIter) &&
+ *aIter != ';' &&
+ *aIter != ':' &&
+ *aIter != '=') {
+ ++aIter;
+ }
+
+ aToken.Assign(Substring(start, aIter));
+ return true;
+}
+
+// Helper for converting window.showModalDialog() options (list of ';'
+// separated name (:|=) value pairs) to a format that's parsable by
+// our normal window opening code.
+
+/* static */
+void
+nsGlobalWindow::ConvertDialogOptions(const nsAString& aOptions,
+ nsAString& aResult)
+{
+ nsAString::const_iterator end;
+ aOptions.EndReading(end);
+
+ nsAString::const_iterator iter;
+ aOptions.BeginReading(iter);
+
+ nsAutoString token;
+ nsAutoString name;
+ nsAutoString value;
+
+ while (true) {
+ if (!TokenizeDialogOptions(name, iter, end)) {
+ break;
+ }
+
+ // Invalid name.
+ if (name.EqualsLiteral("=") ||
+ name.EqualsLiteral(":") ||
+ name.EqualsLiteral(";")) {
+ break;
+ }
+
+ if (!TokenizeDialogOptions(token, iter, end)) {
+ break;
+ }
+
+ if (!token.EqualsLiteral(":") && !token.EqualsLiteral("=")) {
+ continue;
+ }
+
+ // We found name followed by ':' or '='. Look for a value.
+ if (!TokenizeDialogOptions(value, iter, end)) {
+ break;
+ }
+
+ if (name.LowerCaseEqualsLiteral("center")) {
+ if (value.LowerCaseEqualsLiteral("on") ||
+ value.LowerCaseEqualsLiteral("yes") ||
+ value.LowerCaseEqualsLiteral("1")) {
+ aResult.AppendLiteral(",centerscreen=1");
+ }
+ } else if (name.LowerCaseEqualsLiteral("dialogwidth")) {
+ if (!value.IsEmpty()) {
+ aResult.AppendLiteral(",width=");
+ aResult.Append(value);
+ }
+ } else if (name.LowerCaseEqualsLiteral("dialogheight")) {
+ if (!value.IsEmpty()) {
+ aResult.AppendLiteral(",height=");
+ aResult.Append(value);
+ }
+ } else if (name.LowerCaseEqualsLiteral("dialogtop")) {
+ if (!value.IsEmpty()) {
+ aResult.AppendLiteral(",top=");
+ aResult.Append(value);
+ }
+ } else if (name.LowerCaseEqualsLiteral("dialogleft")) {
+ if (!value.IsEmpty()) {
+ aResult.AppendLiteral(",left=");
+ aResult.Append(value);
+ }
+ } else if (name.LowerCaseEqualsLiteral("resizable")) {
+ if (value.LowerCaseEqualsLiteral("on") ||
+ value.LowerCaseEqualsLiteral("yes") ||
+ value.LowerCaseEqualsLiteral("1")) {
+ aResult.AppendLiteral(",resizable=1");
+ }
+ } else if (name.LowerCaseEqualsLiteral("scroll")) {
+ if (value.LowerCaseEqualsLiteral("off") ||
+ value.LowerCaseEqualsLiteral("no") ||
+ value.LowerCaseEqualsLiteral("0")) {
+ aResult.AppendLiteral(",scrollbars=0");
+ }
+ }
+
+ if (iter == end ||
+ !TokenizeDialogOptions(token, iter, end) ||
+ !token.EqualsLiteral(";")) {
+ break;
+ }
+ }
+}
+
+already_AddRefed<nsIVariant>
+nsGlobalWindow::ShowModalDialogOuter(const nsAString& aUrl,
+ nsIVariant* aArgument,
+ const nsAString& aOptions,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (mDoc) {
+ mDoc->WarnOnceAbout(nsIDocument::eShowModalDialog);
+ }
+
+ if (!IsShowModalDialogEnabled()) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return nullptr;
+ }
+
+ RefPtr<DialogValueHolder> argHolder =
+ new DialogValueHolder(&aSubjectPrincipal, aArgument);
+
+ // Before bringing up the window/dialog, unsuppress painting and flush
+ // pending reflows.
+ EnsureReflowFlushAndPaint();
+
+ if (!AreDialogsEnabled()) {
+ // We probably want to keep throwing here; silently doing nothing is a bit
+ // weird given the typical use cases of showModalDialog().
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return nullptr;
+ }
+
+ if (ShouldPromptToBlockDialogs() && !ConfirmDialogIfNeeded()) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return nullptr;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> dlgWin;
+ nsAutoString options(NS_LITERAL_STRING("-moz-internal-modal=1,status=1"));
+
+ ConvertDialogOptions(aOptions, options);
+
+ options.AppendLiteral(",scrollbars=1,centerscreen=1,resizable=0");
+
+ EnterModalState();
+ uint32_t oldMicroTaskLevel = nsContentUtils::MicroTaskLevel();
+ nsContentUtils::SetMicroTaskLevel(0);
+ aError = OpenInternal(aUrl, EmptyString(), options,
+ false, // aDialog
+ true, // aContentModal
+ true, // aCalledNoScript
+ true, // aDoJSFixups
+ true, // aNavigate
+ nullptr, argHolder, // args
+ nullptr, // aLoadInfo
+ false, // aForceNoOpener
+ getter_AddRefs(dlgWin));
+ nsContentUtils::SetMicroTaskLevel(oldMicroTaskLevel);
+ LeaveModalState();
+ if (aError.Failed()) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDOMModalContentWindow> dialog = do_QueryInterface(dlgWin);
+ if (!dialog) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIVariant> retVal;
+ aError = dialog->GetReturnValue(getter_AddRefs(retVal));
+ MOZ_ASSERT(!aError.Failed());
+
+ return retVal.forget();
+}
+
+already_AddRefed<nsIVariant>
+nsGlobalWindow::ShowModalDialog(const nsAString& aUrl, nsIVariant* aArgument,
+ const nsAString& aOptions,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(ShowModalDialogOuter,
+ (aUrl, aArgument, aOptions, aSubjectPrincipal,
+ aError), aError, nullptr);
+}
+
+void
+nsGlobalWindow::ShowModalDialog(JSContext* aCx, const nsAString& aUrl,
+ JS::Handle<JS::Value> aArgument,
+ const nsAString& aOptions,
+ JS::MutableHandle<JS::Value> aRetval,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIVariant> args;
+ aError = nsContentUtils::XPConnect()->JSToVariant(aCx,
+ aArgument,
+ getter_AddRefs(args));
+ if (aError.Failed()) {
+ return;
+ }
+
+ nsCOMPtr<nsIVariant> retVal =
+ ShowModalDialog(aUrl, args, aOptions, aSubjectPrincipal, aError);
+ if (aError.Failed()) {
+ return;
+ }
+
+ JS::Rooted<JS::Value> result(aCx);
+ if (retVal) {
+ aError = nsContentUtils::XPConnect()->VariantToJS(aCx,
+ FastGetGlobalJSObject(),
+ retVal, aRetval);
+ } else {
+ aRetval.setNull();
+ }
+}
+
+class ChildCommandDispatcher : public Runnable
+{
+public:
+ ChildCommandDispatcher(nsGlobalWindow* aWindow,
+ nsITabChild* aTabChild,
+ const nsAString& aAction)
+ : mWindow(aWindow), mTabChild(aTabChild), mAction(aAction) {}
+
+ NS_IMETHOD Run() override
+ {
+ nsCOMPtr<nsPIWindowRoot> root = mWindow->GetTopWindowRoot();
+ if (!root) {
+ return NS_OK;
+ }
+
+ nsTArray<nsCString> enabledCommands, disabledCommands;
+ root->GetEnabledDisabledCommands(enabledCommands, disabledCommands);
+ if (enabledCommands.Length() || disabledCommands.Length()) {
+ mTabChild->EnableDisableCommands(mAction, enabledCommands, disabledCommands);
+ }
+
+ return NS_OK;
+ }
+
+private:
+ RefPtr<nsGlobalWindow> mWindow;
+ nsCOMPtr<nsITabChild> mTabChild;
+ nsString mAction;
+};
+
+class CommandDispatcher : public Runnable
+{
+public:
+ CommandDispatcher(nsIDOMXULCommandDispatcher* aDispatcher,
+ const nsAString& aAction)
+ : mDispatcher(aDispatcher), mAction(aAction) {}
+
+ NS_IMETHOD Run() override
+ {
+ return mDispatcher->UpdateCommands(mAction);
+ }
+
+ nsCOMPtr<nsIDOMXULCommandDispatcher> mDispatcher;
+ nsString mAction;
+};
+
+nsresult
+nsGlobalWindow::UpdateCommands(const nsAString& anAction, nsISelection* aSel, int16_t aReason)
+{
+ // If this is a child process, redirect to the parent process.
+ if (nsIDocShell* docShell = GetDocShell()) {
+ if (nsCOMPtr<nsITabChild> child = docShell->GetTabChild()) {
+ nsContentUtils::AddScriptRunner(new ChildCommandDispatcher(this, child,
+ anAction));
+ return NS_OK;
+ }
+ }
+
+ nsPIDOMWindowOuter *rootWindow = nsGlobalWindow::GetPrivateRoot();
+ if (!rootWindow)
+ return NS_OK;
+
+ nsCOMPtr<nsIDOMXULDocument> xulDoc =
+ do_QueryInterface(rootWindow->GetExtantDoc());
+ // See if we contain a XUL document.
+ // selectionchange action is only used for mozbrowser, not for XUL. So we bypass
+ // XUL command dispatch if anAction is "selectionchange".
+ if (xulDoc && !anAction.EqualsLiteral("selectionchange")) {
+ // Retrieve the command dispatcher and call updateCommands on it.
+ nsCOMPtr<nsIDOMXULCommandDispatcher> xulCommandDispatcher;
+ xulDoc->GetCommandDispatcher(getter_AddRefs(xulCommandDispatcher));
+ if (xulCommandDispatcher) {
+ nsContentUtils::AddScriptRunner(new CommandDispatcher(xulCommandDispatcher,
+ anAction));
+ }
+ }
+
+ return NS_OK;
+}
+
+ThrottledEventQueue*
+nsGlobalWindow::GetThrottledEventQueue()
+{
+ // We must have an outer to access the TabGroup.
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer) {
+ return nullptr;
+ }
+
+ return TabGroup()->GetThrottledEventQueue();
+}
+
+Selection*
+nsGlobalWindow::GetSelectionOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+ if (!presShell) {
+ return nullptr;
+ }
+ nsISelection* domSelection =
+ presShell->GetCurrentSelection(SelectionType::eNormal);
+ return domSelection ? domSelection->AsSelection() : nullptr;
+}
+
+Selection*
+nsGlobalWindow::GetSelection(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetSelectionOuter, (), aError, nullptr);
+}
+
+already_AddRefed<nsISelection>
+nsGlobalWindow::GetSelection()
+{
+ nsCOMPtr<nsISelection> selection = GetSelectionOuter();
+ return selection.forget();
+}
+
+bool
+nsGlobalWindow::FindOuter(const nsAString& aString, bool aCaseSensitive,
+ bool aBackwards, bool aWrapAround, bool aWholeWord,
+ bool aSearchInFrames, bool aShowDialog,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (Preferences::GetBool("dom.disable_window_find", false)) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return false;
+ }
+
+ nsCOMPtr<nsIWebBrowserFind> finder(do_GetInterface(mDocShell));
+ if (!finder) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return false;
+ }
+
+ // Set the options of the search
+ aError = finder->SetSearchString(PromiseFlatString(aString).get());
+ if (aError.Failed()) {
+ return false;
+ }
+ finder->SetMatchCase(aCaseSensitive);
+ finder->SetFindBackwards(aBackwards);
+ finder->SetWrapFind(aWrapAround);
+ finder->SetEntireWord(aWholeWord);
+ finder->SetSearchFrames(aSearchInFrames);
+
+ // the nsIWebBrowserFind is initialized to use this window
+ // as the search root, but uses focus to set the current search
+ // frame. If we're being called from JS (as here), this window
+ // should be the current search frame.
+ nsCOMPtr<nsIWebBrowserFindInFrames> framesFinder(do_QueryInterface(finder));
+ if (framesFinder) {
+ framesFinder->SetRootSearchFrame(AsOuter()); // paranoia
+ framesFinder->SetCurrentSearchFrame(AsOuter());
+ }
+
+ // The Find API does not accept empty strings. Launch the Find Dialog.
+ if (aString.IsEmpty() || aShowDialog) {
+ // See if the find dialog is already up using nsIWindowMediator
+ nsCOMPtr<nsIWindowMediator> windowMediator =
+ do_GetService(NS_WINDOWMEDIATOR_CONTRACTID);
+
+ nsCOMPtr<mozIDOMWindowProxy> findDialog;
+
+ if (windowMediator) {
+ windowMediator->GetMostRecentWindow(u"findInPage",
+ getter_AddRefs(findDialog));
+ }
+
+ if (findDialog) {
+ // The Find dialog is already open, bring it to the top.
+ auto* piFindDialog = nsPIDOMWindowOuter::From(findDialog);
+ aError = piFindDialog->Focus();
+ } else if (finder) {
+ // Open a Find dialog
+ nsCOMPtr<nsPIDOMWindowOuter> dialog;
+ aError = OpenDialog(NS_LITERAL_STRING("chrome://global/content/finddialog.xul"),
+ NS_LITERAL_STRING("_blank"),
+ NS_LITERAL_STRING("chrome, resizable=no, dependent=yes"),
+ finder, getter_AddRefs(dialog));
+ }
+
+ return false;
+ }
+
+ // Launch the search with the passed in search string
+ bool didFind = false;
+ aError = finder->FindNext(&didFind);
+ return didFind;
+}
+
+bool
+nsGlobalWindow::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
+nsGlobalWindow::Atob(const nsAString& aAsciiBase64String,
+ nsAString& aBinaryData, ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ aError = nsContentUtils::Atob(aAsciiBase64String, aBinaryData);
+}
+
+void
+nsGlobalWindow::Btoa(const nsAString& aBinaryData,
+ nsAString& aAsciiBase64String, ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ aError = nsContentUtils::Btoa(aBinaryData, aAsciiBase64String);
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsIDOMEventTarget
+//*****************************************************************************
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetOwnerGlobalForBindings()
+{
+ if (IsOuterWindow()) {
+ return AsOuter();
+ }
+
+ return nsPIDOMWindowOuter::GetFromCurrentInner(AsInner());
+}
+
+NS_IMETHODIMP
+nsGlobalWindow::RemoveEventListener(const nsAString& aType,
+ nsIDOMEventListener* aListener,
+ bool aUseCapture)
+{
+ if (RefPtr<EventListenerManager> elm = GetExistingListenerManager()) {
+ elm->RemoveEventListener(aType, aListener, aUseCapture);
+ }
+ return NS_OK;
+}
+
+NS_IMPL_REMOVE_SYSTEM_EVENT_LISTENER(nsGlobalWindow)
+
+NS_IMETHODIMP
+nsGlobalWindow::DispatchEvent(nsIDOMEvent* aEvent, bool* aRetVal)
+{
+ FORWARD_TO_INNER(DispatchEvent, (aEvent, aRetVal), NS_OK);
+
+ if (!AsInner()->IsCurrentInnerWindow()) {
+ NS_WARNING("DispatchEvent called on non-current inner window, dropping. "
+ "Please check the window in the caller instead.");
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!mDoc) {
+ return NS_ERROR_FAILURE;
+ }
+
+ // Obtain a presentation shell
+ nsIPresShell *shell = mDoc->GetShell();
+ RefPtr<nsPresContext> presContext;
+ if (shell) {
+ // Retrieve the context
+ presContext = shell->GetPresContext();
+ }
+
+ nsEventStatus status = nsEventStatus_eIgnore;
+ nsresult rv = EventDispatcher::DispatchDOMEvent(AsInner(), nullptr, aEvent,
+ presContext, &status);
+
+ *aRetVal = (status != nsEventStatus_eConsumeNoDefault);
+ return rv;
+}
+
+NS_IMETHODIMP
+nsGlobalWindow::AddEventListener(const nsAString& aType,
+ nsIDOMEventListener *aListener,
+ bool aUseCapture, bool aWantsUntrusted,
+ uint8_t aOptionalArgc)
+{
+ NS_ASSERTION(!aWantsUntrusted || aOptionalArgc > 1,
+ "Won't check if this is chrome, you want to set "
+ "aWantsUntrusted to false or make the aWantsUntrusted "
+ "explicit by making optional_argc non-zero.");
+
+ if (!aWantsUntrusted &&
+ (aOptionalArgc < 2 && !nsContentUtils::IsChromeDoc(mDoc))) {
+ aWantsUntrusted = true;
+ }
+
+ EventListenerManager* manager = GetOrCreateListenerManager();
+ NS_ENSURE_STATE(manager);
+ manager->AddEventListener(aType, aListener, aUseCapture, aWantsUntrusted);
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::AddEventListener(const nsAString& aType,
+ EventListener* aListener,
+ const AddEventListenerOptionsOrBoolean& aOptions,
+ const Nullable<bool>& aWantsUntrusted,
+ ErrorResult& aRv)
+{
+ if (IsOuterWindow() && mInnerWindow &&
+ !nsContentUtils::CanCallerAccess(mInnerWindow)) {
+ aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+ return;
+ }
+
+ bool wantsUntrusted;
+ if (aWantsUntrusted.IsNull()) {
+ wantsUntrusted = !nsContentUtils::IsChromeDoc(mDoc);
+ } else {
+ wantsUntrusted = aWantsUntrusted.Value();
+ }
+
+ EventListenerManager* manager = GetOrCreateListenerManager();
+ if (!manager) {
+ aRv.Throw(NS_ERROR_UNEXPECTED);
+ return;
+ }
+
+ manager->AddEventListener(aType, aListener, aOptions, wantsUntrusted);
+}
+
+NS_IMETHODIMP
+nsGlobalWindow::AddSystemEventListener(const nsAString& aType,
+ nsIDOMEventListener *aListener,
+ bool aUseCapture,
+ bool aWantsUntrusted,
+ uint8_t aOptionalArgc)
+{
+ NS_ASSERTION(!aWantsUntrusted || aOptionalArgc > 1,
+ "Won't check if this is chrome, you want to set "
+ "aWantsUntrusted to false or make the aWantsUntrusted "
+ "explicit by making optional_argc non-zero.");
+
+ if (IsOuterWindow() && mInnerWindow &&
+ !nsContentUtils::LegacyIsCallerNativeCode() &&
+ !nsContentUtils::CanCallerAccess(mInnerWindow)) {
+ return NS_ERROR_DOM_SECURITY_ERR;
+ }
+
+ if (!aWantsUntrusted &&
+ (aOptionalArgc < 2 && !nsContentUtils::IsChromeDoc(mDoc))) {
+ aWantsUntrusted = true;
+ }
+
+ return NS_AddSystemEventListener(this, aType, aListener, aUseCapture,
+ aWantsUntrusted);
+}
+
+EventListenerManager*
+nsGlobalWindow::GetOrCreateListenerManager()
+{
+ FORWARD_TO_INNER_CREATE(GetOrCreateListenerManager, (), nullptr);
+
+ if (!mListenerManager) {
+ mListenerManager =
+ new EventListenerManager(static_cast<EventTarget*>(this));
+ }
+
+ return mListenerManager;
+}
+
+EventListenerManager*
+nsGlobalWindow::GetExistingListenerManager() const
+{
+ FORWARD_TO_INNER(GetExistingListenerManager, (), nullptr);
+
+ return mListenerManager;
+}
+
+nsIScriptContext*
+nsGlobalWindow::GetContextForEventHandlers(nsresult* aRv)
+{
+ *aRv = NS_ERROR_UNEXPECTED;
+ NS_ENSURE_TRUE(!IsInnerWindow() || AsInner()->IsCurrentInnerWindow(), nullptr);
+
+ nsIScriptContext* scx;
+ if ((scx = GetContext())) {
+ *aRv = NS_OK;
+ return scx;
+ }
+ return nullptr;
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsPIDOMWindow
+//*****************************************************************************
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetPrivateParent()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsPIDOMWindowOuter> parent = GetParent();
+
+ if (AsOuter() == parent) {
+ nsCOMPtr<nsIContent> chromeElement(do_QueryInterface(mChromeEventHandler));
+ if (!chromeElement)
+ return nullptr; // This is ok, just means a null parent.
+
+ nsIDocument* doc = chromeElement->GetComposedDoc();
+ if (!doc)
+ return nullptr; // This is ok, just means a null parent.
+
+ return doc->GetWindow();
+ }
+
+ return parent;
+}
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetPrivateRoot()
+{
+ if (IsInnerWindow()) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer) {
+ NS_WARNING("No outer window available!");
+ return nullptr;
+ }
+ return outer->GetPrivateRoot();
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> top = GetTop();
+
+ nsCOMPtr<nsIContent> chromeElement(do_QueryInterface(mChromeEventHandler));
+ if (chromeElement) {
+ nsIDocument* doc = chromeElement->GetComposedDoc();
+ if (doc) {
+ nsCOMPtr<nsPIDOMWindowOuter> parent = doc->GetWindow();
+ if (parent) {
+ top = parent->GetTop();
+ }
+ }
+ }
+
+ return top;
+}
+
+Location*
+nsGlobalWindow::GetLocation(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ nsIDocShell *docShell = GetDocShell();
+ if (!mLocation && docShell) {
+ mLocation = new Location(AsInner(), docShell);
+ }
+ return mLocation;
+}
+
+nsIDOMLocation*
+nsGlobalWindow::GetLocation()
+{
+ FORWARD_TO_INNER(GetLocation, (), nullptr);
+
+ ErrorResult dummy;
+ nsIDOMLocation* location = GetLocation(dummy);
+ dummy.SuppressException();
+ return location;
+}
+
+void
+nsGlobalWindow::ActivateOrDeactivate(bool aActivate)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ if (!mDoc) {
+ return;
+ }
+
+ // Set / unset mIsActive on the top level window, which is used for the
+ // :-moz-window-inactive pseudoclass, and its sheet (if any).
+ nsCOMPtr<nsIWidget> mainWidget = GetMainWidget();
+ nsCOMPtr<nsIWidget> topLevelWidget;
+ if (mainWidget) {
+ // Get the top level widget (if the main widget is a sheet, this will
+ // be the sheet's top (non-sheet) parent).
+ topLevelWidget = mainWidget->GetSheetWindowParent();
+ if (!topLevelWidget) {
+ topLevelWidget = mainWidget;
+ }
+ }
+
+ SetActive(aActivate);
+
+ if (mainWidget != topLevelWidget) {
+ // This is a workaround for the following problem:
+ // When a window with an open sheet gains or loses focus, only the sheet
+ // window receives the NS_ACTIVATE/NS_DEACTIVATE event. However the
+ // styling of the containing top level window also needs to change. We
+ // get around this by calling nsPIDOMWindow::SetActive() on both windows.
+
+ // Get the top level widget's nsGlobalWindow
+ nsCOMPtr<nsPIDOMWindowOuter> topLevelWindow;
+
+ // widgetListener should be a nsXULWindow
+ nsIWidgetListener* listener = topLevelWidget->GetWidgetListener();
+ if (listener) {
+ nsCOMPtr<nsIXULWindow> window = listener->GetXULWindow();
+ nsCOMPtr<nsIInterfaceRequestor> req(do_QueryInterface(window));
+ topLevelWindow = do_GetInterface(req);
+ }
+
+ if (topLevelWindow) {
+ topLevelWindow->SetActive(aActivate);
+ }
+ }
+}
+
+static bool
+NotifyDocumentTree(nsIDocument* aDocument, void* aData)
+{
+ aDocument->EnumerateSubDocuments(NotifyDocumentTree, nullptr);
+ aDocument->DocumentStatesChanged(NS_DOCUMENT_STATE_WINDOW_INACTIVE);
+ return true;
+}
+
+void
+nsGlobalWindow::SetActive(bool aActive)
+{
+ nsPIDOMWindow::SetActive(aActive);
+ if (mDoc) {
+ NotifyDocumentTree(mDoc, nullptr);
+ }
+}
+
+bool
+nsGlobalWindow::IsTopLevelWindowActive()
+{
+ nsCOMPtr<nsIDocShellTreeItem> treeItem(GetDocShell());
+ if (!treeItem) {
+ return false;
+ }
+
+ nsCOMPtr<nsIDocShellTreeItem> rootItem;
+ treeItem->GetRootTreeItem(getter_AddRefs(rootItem));
+ if (!rootItem) {
+ return false;
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> domWindow = rootItem->GetWindow();
+ return domWindow && domWindow->IsActive();
+}
+
+void nsGlobalWindow::SetIsBackground(bool aIsBackground)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ bool resetTimers = (!aIsBackground && AsOuter()->IsBackground());
+ nsPIDOMWindow::SetIsBackground(aIsBackground);
+ if (resetTimers) {
+ ResetTimersForThrottleReduction(gMinBackgroundTimeoutValue);
+ }
+
+ if (!aIsBackground) {
+ nsGlobalWindow* inner = GetCurrentInnerWindowInternal();
+ if (inner) {
+ inner->UnthrottleIdleCallbackRequests();
+ }
+ }
+#ifdef MOZ_GAMEPAD
+ if (!aIsBackground) {
+ nsGlobalWindow* inner = GetCurrentInnerWindowInternal();
+ if (inner) {
+ inner->SyncGamepadState();
+ }
+ }
+#endif
+}
+
+void nsGlobalWindow::MaybeUpdateTouchState()
+{
+ FORWARD_TO_INNER_VOID(MaybeUpdateTouchState, ());
+
+ if (mMayHaveTouchEventListener) {
+ nsCOMPtr<nsIObserverService> observerService =
+ services::GetObserverService();
+
+ if (observerService) {
+ observerService->NotifyObservers(static_cast<nsIDOMWindow*>(this),
+ DOM_TOUCH_LISTENER_ADDED,
+ nullptr);
+ }
+ }
+}
+
+void
+nsGlobalWindow::EnableGamepadUpdates()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (mHasGamepad) {
+#ifdef MOZ_GAMEPAD
+ RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
+ if (gamepadManager) {
+ gamepadManager->AddListener(this);
+ }
+#endif
+ }
+}
+
+void
+nsGlobalWindow::DisableGamepadUpdates()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (mHasGamepad) {
+#ifdef MOZ_GAMEPAD
+ RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
+ if (gamepadManager) {
+ gamepadManager->RemoveListener(this);
+ }
+#endif
+ }
+}
+
+void
+nsGlobalWindow::EnableVRUpdates()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (mHasVREvents && !mVREventObserver) {
+ mVREventObserver = new VREventObserver(this);
+ }
+}
+
+void
+nsGlobalWindow::DisableVRUpdates()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ mVREventObserver = nullptr;
+}
+
+void
+nsGlobalWindow::SetChromeEventHandler(EventTarget* aChromeEventHandler)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ SetChromeEventHandlerInternal(aChromeEventHandler);
+ // update the chrome event handler on all our inner windows
+ for (nsGlobalWindow *inner = (nsGlobalWindow *)PR_LIST_HEAD(this);
+ inner != this;
+ inner = (nsGlobalWindow*)PR_NEXT_LINK(inner)) {
+ NS_ASSERTION(!inner->mOuterWindow || inner->mOuterWindow == AsOuter(),
+ "bad outer window pointer");
+ inner->SetChromeEventHandlerInternal(aChromeEventHandler);
+ }
+}
+
+static bool IsLink(nsIContent* aContent)
+{
+ return aContent && (aContent->IsHTMLElement(nsGkAtoms::a) ||
+ aContent->AttrValueIs(kNameSpaceID_XLink, nsGkAtoms::type,
+ nsGkAtoms::simple, eCaseMatters));
+}
+
+static bool ShouldShowFocusRingIfFocusedByMouse(nsIContent* aNode)
+{
+ if (!aNode) {
+ return true;
+ }
+ return !IsLink(aNode) &&
+ !aNode->IsAnyOfHTMLElements(nsGkAtoms::video, nsGkAtoms::audio);
+}
+
+void
+nsGlobalWindow::SetFocusedNode(nsIContent* aNode,
+ uint32_t aFocusMethod,
+ bool aNeedsFocus)
+{
+ FORWARD_TO_INNER_VOID(SetFocusedNode, (aNode, aFocusMethod, aNeedsFocus));
+
+ if (aNode && aNode->GetComposedDoc() != mDoc) {
+ NS_WARNING("Trying to set focus to a node from a wrong document");
+ return;
+ }
+
+ if (mCleanedUp) {
+ NS_ASSERTION(!aNode, "Trying to focus cleaned up window!");
+ aNode = nullptr;
+ aNeedsFocus = false;
+ }
+ if (mFocusedNode != aNode) {
+ UpdateCanvasFocus(false, aNode);
+ mFocusedNode = aNode;
+ mFocusMethod = aFocusMethod & FOCUSMETHOD_MASK;
+ mShowFocusRingForContent = false;
+ }
+
+ if (mFocusedNode) {
+ // 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(aNode) ||
+#endif
+ aFocusMethod & nsIFocusManager::FLAG_SHOWRING) {
+ mShowFocusRingForContent = true;
+ }
+ }
+
+ if (aNeedsFocus)
+ mNeedsFocus = aNeedsFocus;
+}
+
+uint32_t
+nsGlobalWindow::GetFocusMethod()
+{
+ FORWARD_TO_INNER(GetFocusMethod, (), 0);
+
+ return mFocusMethod;
+}
+
+bool
+nsGlobalWindow::ShouldShowFocusRing()
+{
+ FORWARD_TO_INNER(ShouldShowFocusRing, (), false);
+
+ if (mShowFocusRingForContent || mFocusByKeyOccurred) {
+ return true;
+ }
+
+ nsCOMPtr<nsPIWindowRoot> root = GetTopWindowRoot();
+ return root ? root->ShowFocusRings() : false;
+}
+
+void
+nsGlobalWindow::SetKeyboardIndicators(UIStateChangeType aShowAccelerators,
+ UIStateChangeType aShowFocusRings)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsPIDOMWindowOuter* piWin = GetPrivateRoot();
+ if (!piWin) {
+ return;
+ }
+
+ MOZ_ASSERT(piWin == AsOuter());
+
+ bool oldShouldShowFocusRing = ShouldShowFocusRing();
+
+ // only change the flags that have been modified
+ nsCOMPtr<nsPIWindowRoot> windowRoot = do_QueryInterface(mChromeEventHandler);
+ if (!windowRoot) {
+ return;
+ }
+
+ if (aShowAccelerators != UIStateChangeType_NoChange) {
+ windowRoot->SetShowAccelerators(aShowAccelerators == UIStateChangeType_Set);
+ }
+ if (aShowFocusRings != UIStateChangeType_NoChange) {
+ windowRoot->SetShowFocusRings(aShowFocusRings == UIStateChangeType_Set);
+ }
+
+ nsContentUtils::SetKeyboardIndicatorsOnRemoteChildren(GetOuterWindow(),
+ aShowAccelerators,
+ aShowFocusRings);
+
+ bool newShouldShowFocusRing = ShouldShowFocusRing();
+ if (mHasFocus && mFocusedNode &&
+ oldShouldShowFocusRing != newShouldShowFocusRing &&
+ mFocusedNode->IsElement()) {
+ // Update mFocusedNode's state.
+ if (newShouldShowFocusRing) {
+ mFocusedNode->AsElement()->AddStates(NS_EVENT_STATE_FOCUSRING);
+ } else {
+ mFocusedNode->AsElement()->RemoveStates(NS_EVENT_STATE_FOCUSRING);
+ }
+ }
+}
+
+bool
+nsGlobalWindow::TakeFocus(bool aFocus, uint32_t aFocusMethod)
+{
+ FORWARD_TO_INNER(TakeFocus, (aFocus, aFocusMethod), false);
+
+ if (mCleanedUp) {
+ return false;
+ }
+
+ if (aFocus)
+ mFocusMethod = aFocusMethod & FOCUSMETHOD_MASK;
+
+ if (mHasFocus != aFocus) {
+ mHasFocus = aFocus;
+ UpdateCanvasFocus(true, mFocusedNode);
+ }
+
+ // 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
+nsGlobalWindow::SetReadyForFocus()
+{
+ FORWARD_TO_INNER_VOID(SetReadyForFocus, ());
+
+ bool oldNeedsFocus = mNeedsFocus;
+ mNeedsFocus = false;
+
+ nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (fm) {
+ fm->WindowShown(GetOuterWindow(), oldNeedsFocus);
+ }
+}
+
+void
+nsGlobalWindow::PageHidden()
+{
+ FORWARD_TO_INNER_VOID(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,
+ nsGlobalWindow* aWindow)
+ : mWindow(aWindow)
+ {
+ MOZ_ASSERT(mWindow);
+ MOZ_ASSERT(mWindow->IsInnerWindow());
+ mOldURL.Assign(aOldURL);
+ mNewURL.Assign(aNewURL);
+ }
+
+ NS_IMETHOD Run() override
+ {
+ NS_PRECONDITION(NS_IsMainThread(), "Should be called on the main thread.");
+ return mWindow->FireHashchange(mOldURL, mNewURL);
+ }
+
+private:
+ nsString mOldURL;
+ nsString mNewURL;
+ RefPtr<nsGlobalWindow> mWindow;
+};
+
+nsresult
+nsGlobalWindow::DispatchAsyncHashchange(nsIURI *aOldURI, nsIURI *aNewURI)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ // 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 NS_DispatchToMainThread(callback);
+}
+
+nsresult
+nsGlobalWindow::FireHashchange(const nsAString &aOldURL,
+ const nsAString &aNewURL)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ // 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(AsInner()->IsCurrentInnerWindow());
+
+ nsIPresShell *shell = mDoc->GetShell();
+ RefPtr<nsPresContext> presContext;
+ if (shell) {
+ presContext = shell->GetPresContext();
+ }
+
+ 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);
+
+ bool dummy;
+ return DispatchEvent(event, &dummy);
+}
+
+nsresult
+nsGlobalWindow::DispatchSyncPopState()
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+ NS_ASSERTION(nsContentUtils::IsSafeToRunScript(),
+ "Must be safe to run script here.");
+
+ nsresult rv = NS_OK;
+
+ // 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;
+ rv = mDoc->GetStateObject(getter_AddRefs(stateObj));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Obtain a presentation shell for use in creating a popstate event.
+ nsIPresShell *shell = mDoc->GetShell();
+ RefPtr<nsPresContext> presContext;
+ if (shell) {
+ presContext = shell->GetPresContext();
+ }
+
+ bool result = true;
+ AutoJSAPI jsapi;
+ result = jsapi.Init(AsInner());
+ 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);
+
+ bool dummy; // default action
+ return DispatchEvent(event, &dummy);
+}
+
+// Find an nsICanvasFrame under aFrame. Only search the principal
+// child lists. aFrame must be non-null.
+static nsCanvasFrame* FindCanvasFrame(nsIFrame* aFrame)
+{
+ nsCanvasFrame* canvasFrame = do_QueryFrame(aFrame);
+ if (canvasFrame) {
+ return canvasFrame;
+ }
+
+ for (nsIFrame* kid : aFrame->PrincipalChildList()) {
+ canvasFrame = FindCanvasFrame(kid);
+ if (canvasFrame) {
+ return canvasFrame;
+ }
+ }
+
+ return nullptr;
+}
+
+//-------------------------------------------------------
+// Tells the HTMLFrame/CanvasFrame that is now has focus
+void
+nsGlobalWindow::UpdateCanvasFocus(bool aFocusChanged, nsIContent* aNewContent)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ // this is called from the inner window so use GetDocShell
+ nsIDocShell* docShell = GetDocShell();
+ if (!docShell)
+ return;
+
+ bool editable;
+ docShell->GetEditable(&editable);
+ if (editable)
+ return;
+
+ nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
+ if (!presShell || !mDoc)
+ return;
+
+ Element *rootElement = mDoc->GetRootElement();
+ if (rootElement) {
+ if ((mHasFocus || aFocusChanged) &&
+ (mFocusedNode == rootElement || aNewContent == rootElement)) {
+ nsIFrame* frame = rootElement->GetPrimaryFrame();
+ if (frame) {
+ frame = frame->GetParent();
+ nsCanvasFrame* canvasFrame = do_QueryFrame(frame);
+ if (canvasFrame) {
+ canvasFrame->SetHasFocus(mHasFocus && rootElement == aNewContent);
+ }
+ }
+ }
+ } else {
+ // Look for the frame the hard way
+ nsIFrame* frame = presShell->GetRootFrame();
+ if (frame) {
+ nsCanvasFrame* canvasFrame = FindCanvasFrame(frame);
+ if (canvasFrame) {
+ canvasFrame->SetHasFocus(false);
+ }
+ }
+ }
+}
+
+already_AddRefed<nsICSSDeclaration>
+nsGlobalWindow::GetComputedStyle(Element& aElt, const nsAString& aPseudoElt,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ return GetComputedStyleHelper(aElt, aPseudoElt, false, aError);
+}
+
+already_AddRefed<nsICSSDeclaration>
+nsGlobalWindow::GetDefaultComputedStyle(Element& aElt,
+ const nsAString& aPseudoElt,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ return GetComputedStyleHelper(aElt, aPseudoElt, true, aError);
+}
+
+nsresult
+nsGlobalWindow::GetComputedStyleHelper(nsIDOMElement* aElt,
+ const nsAString& aPseudoElt,
+ bool aDefaultStylesOnly,
+ nsIDOMCSSStyleDeclaration** aReturn)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ NS_ENSURE_ARG_POINTER(aReturn);
+ *aReturn = nullptr;
+
+ nsCOMPtr<dom::Element> element = do_QueryInterface(aElt);
+ if (!element) {
+ return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
+ }
+
+ ErrorResult rv;
+ nsCOMPtr<nsIDOMCSSStyleDeclaration> declaration =
+ GetComputedStyleHelper(*element, aPseudoElt, aDefaultStylesOnly, rv);
+ declaration.forget(aReturn);
+
+ return rv.StealNSResult();
+}
+
+already_AddRefed<nsICSSDeclaration>
+nsGlobalWindow::GetComputedStyleHelperOuter(Element& aElt,
+ const nsAString& aPseudoElt,
+ bool aDefaultStylesOnly)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+
+ if (!presShell) {
+ // Try flushing frames on our parent in case there's a pending
+ // style change that will create the presshell.
+ auto* parent = nsGlobalWindow::Cast(GetPrivateParent());
+ if (!parent) {
+ return nullptr;
+ }
+
+ parent->FlushPendingNotifications(Flush_Frames);
+
+ // Might have killed mDocShell
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ presShell = mDocShell->GetPresShell();
+ if (!presShell) {
+ return nullptr;
+ }
+ }
+
+ RefPtr<nsComputedDOMStyle> compStyle =
+ NS_NewComputedDOMStyle(&aElt, aPseudoElt, presShell,
+ aDefaultStylesOnly ? nsComputedDOMStyle::eDefaultOnly :
+ nsComputedDOMStyle::eAll);
+
+ return compStyle.forget();
+}
+
+already_AddRefed<nsICSSDeclaration>
+nsGlobalWindow::GetComputedStyleHelper(Element& aElt,
+ const nsAString& aPseudoElt,
+ bool aDefaultStylesOnly,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetComputedStyleHelperOuter,
+ (aElt, aPseudoElt, aDefaultStylesOnly),
+ aError, nullptr);
+}
+
+DOMStorage*
+nsGlobalWindow::GetSessionStorage(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ nsIPrincipal *principal = GetPrincipal();
+ nsIDocShell* docShell = GetDocShell();
+
+ if (!principal || !docShell || !Preferences::GetBool(kStorageEnabled)) {
+ return nullptr;
+ }
+
+ if (mSessionStorage) {
+ if (MOZ_LOG_TEST(gDOMLeakPRLog, LogLevel::Debug)) {
+ PR_LogPrint("nsGlobalWindow %p has %p sessionStorage", this, mSessionStorage.get());
+ }
+ bool canAccess = mSessionStorage->CanAccess(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;
+ }
+
+ nsresult rv;
+
+ nsCOMPtr<nsIDOMStorageManager> storageManager = do_QueryInterface(docShell, &rv);
+ if (NS_FAILED(rv)) {
+ aError.Throw(rv);
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDOMStorage> storage;
+ aError = storageManager->CreateStorage(AsInner(), principal, documentURI,
+ IsPrivateBrowsing(),
+ getter_AddRefs(storage));
+ if (aError.Failed()) {
+ return nullptr;
+ }
+
+ mSessionStorage = static_cast<DOMStorage*>(storage.get());
+ MOZ_ASSERT(mSessionStorage);
+
+ if (MOZ_LOG_TEST(gDOMLeakPRLog, LogLevel::Debug)) {
+ PR_LogPrint("nsGlobalWindow %p tried to get a new sessionStorage %p", this, mSessionStorage.get());
+ }
+
+ if (!mSessionStorage) {
+ aError.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return nullptr;
+ }
+ }
+
+ if (MOZ_LOG_TEST(gDOMLeakPRLog, LogLevel::Debug)) {
+ PR_LogPrint("nsGlobalWindow %p returns %p sessionStorage", this, mSessionStorage.get());
+ }
+
+ return mSessionStorage;
+}
+
+DOMStorage*
+nsGlobalWindow::GetLocalStorage(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!Preferences::GetBool(kStorageEnabled)) {
+ return nullptr;
+ }
+
+ if (!mLocalStorage) {
+ if (nsContentUtils::StorageAllowedForWindow(AsInner()) ==
+ nsContentUtils::StorageAccess::eDeny) {
+ aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
+ return nullptr;
+ }
+
+ nsIPrincipal *principal = GetPrincipal();
+ if (!principal) {
+ return nullptr;
+ }
+
+ 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;
+ }
+ }
+
+ nsCOMPtr<nsIDOMStorage> storage;
+ aError = storageManager->CreateStorage(AsInner(), principal, documentURI,
+ IsPrivateBrowsing(),
+ getter_AddRefs(storage));
+ if (aError.Failed()) {
+ return nullptr;
+ }
+
+ mLocalStorage = static_cast<DOMStorage*>(storage.get());
+ MOZ_ASSERT(mLocalStorage);
+ }
+
+ return mLocalStorage;
+}
+
+IDBFactory*
+nsGlobalWindow::GetIndexedDB(ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+ if (!mIndexedDB) {
+ // This may keep mIndexedDB null without setting an error.
+ aError = IDBFactory::CreateForWindow(AsInner(),
+ getter_AddRefs(mIndexedDB));
+ }
+
+ return mIndexedDB;
+}
+
+//*****************************************************************************
+// nsGlobalWindow::nsIInterfaceRequestor
+//*****************************************************************************
+
+NS_IMETHODIMP
+nsGlobalWindow::GetInterface(const nsIID & aIID, void **aSink)
+{
+ NS_ENSURE_ARG_POINTER(aSink);
+ *aSink = nullptr;
+
+ if (aIID.Equals(NS_GET_IID(nsIDocCharset))) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
+
+ NS_WARNING("Using deprecated nsIDocCharset: use nsIDocShell.GetCharset() instead ");
+ nsCOMPtr<nsIDocCharset> docCharset(do_QueryInterface(outer->mDocShell));
+ docCharset.forget(aSink);
+ }
+ else if (aIID.Equals(NS_GET_IID(nsIWebNavigation))) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
+
+ nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(outer->mDocShell));
+ webNav.forget(aSink);
+ }
+ else if (aIID.Equals(NS_GET_IID(nsIDocShell))) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
+
+ nsCOMPtr<nsIDocShell> docShell = outer->mDocShell;
+ docShell.forget(aSink);
+ }
+#ifdef NS_PRINTING
+ else if (aIID.Equals(NS_GET_IID(nsIWebBrowserPrint))) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
+
+ if (outer->mDocShell) {
+ nsCOMPtr<nsIContentViewer> viewer;
+ outer->mDocShell->GetContentViewer(getter_AddRefs(viewer));
+ if (viewer) {
+ nsCOMPtr<nsIWebBrowserPrint> webBrowserPrint(do_QueryInterface(viewer));
+ webBrowserPrint.forget(aSink);
+ }
+ }
+ }
+#endif
+ else if (aIID.Equals(NS_GET_IID(nsIDOMWindowUtils))) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
+
+ if (!mWindowUtils) {
+ mWindowUtils = new nsDOMWindowUtils(outer);
+ }
+
+ *aSink = mWindowUtils;
+ NS_ADDREF(((nsISupports *) *aSink));
+ }
+ else if (aIID.Equals(NS_GET_IID(nsILoadContext))) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ NS_ENSURE_TRUE(outer, NS_ERROR_NOT_INITIALIZED);
+
+ nsCOMPtr<nsILoadContext> loadContext(do_QueryInterface(outer->mDocShell));
+ loadContext.forget(aSink);
+ }
+ else {
+ return QueryInterface(aIID, aSink);
+ }
+
+ return *aSink ? NS_OK : NS_ERROR_NO_INTERFACE;
+}
+
+void
+nsGlobalWindow::GetInterface(JSContext* aCx, nsIJSID* aIID,
+ JS::MutableHandle<JS::Value> aRetval,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ dom::GetInterface(aCx, this, aIID, aRetval, aError);
+}
+
+already_AddRefed<CacheStorage>
+nsGlobalWindow::GetCaches(ErrorResult& aRv)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (!mCacheStorage) {
+ bool forceTrustedOrigin =
+ GetOuterWindow()->GetServiceWorkersTestingEnabled();
+
+ nsContentUtils::StorageAccess access =
+ nsContentUtils::StorageAllowedForWindow(AsInner());
+
+ // We don't block the cache API when being told to only allow storage for the
+ // current session.
+ bool storageBlocked = access <= nsContentUtils::StorageAccess::ePrivateBrowsing;
+
+ mCacheStorage = CacheStorage::CreateOnMainThread(cache::DEFAULT_NAMESPACE,
+ this, GetPrincipal(),
+ storageBlocked,
+ forceTrustedOrigin, aRv);
+ }
+
+ RefPtr<CacheStorage> ref = mCacheStorage;
+ return ref.forget();
+}
+
+already_AddRefed<ServiceWorkerRegistration>
+nsPIDOMWindowInner::GetServiceWorkerRegistration(const nsAString& aScope)
+{
+ RefPtr<ServiceWorkerRegistration> registration;
+ if (!mServiceWorkerRegistrationTable.Get(aScope,
+ getter_AddRefs(registration))) {
+ registration =
+ ServiceWorkerRegistration::CreateForMainThread(this, aScope);
+ mServiceWorkerRegistrationTable.Put(aScope, registration);
+ }
+ return registration.forget();
+}
+
+void
+nsPIDOMWindowInner::InvalidateServiceWorkerRegistration(const nsAString& aScope)
+{
+ mServiceWorkerRegistrationTable.Remove(aScope);
+}
+
+void
+nsGlobalWindow::FireOfflineStatusEventIfChanged()
+{
+ if (!AsInner()->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");
+ }
+ // The event is fired at the body element, or if there is no body element,
+ // at the document.
+ nsCOMPtr<EventTarget> eventTarget = mDoc.get();
+ nsHTMLDocument* htmlDoc = mDoc->AsHTMLDocument();
+ if (htmlDoc) {
+ Element* body = htmlDoc->GetBody();
+ if (body) {
+ eventTarget = body;
+ }
+ } else {
+ Element* documentElement = mDoc->GetDocumentElement();
+ if (documentElement) {
+ eventTarget = documentElement;
+ }
+ }
+ nsContentUtils::DispatchTrustedEvent(mDoc, eventTarget, name, true, false);
+}
+
+class NotifyIdleObserverRunnable : public Runnable
+{
+public:
+ NotifyIdleObserverRunnable(nsIIdleObserver* aIdleObserver,
+ uint32_t aTimeInS,
+ bool aCallOnidle,
+ nsGlobalWindow* aIdleWindow)
+ : mIdleObserver(aIdleObserver), mTimeInS(aTimeInS), mIdleWindow(aIdleWindow),
+ mCallOnidle(aCallOnidle)
+ { }
+
+ NS_IMETHOD Run() override
+ {
+ if (mIdleWindow->ContainsIdleObserver(mIdleObserver, mTimeInS)) {
+ return mCallOnidle ? mIdleObserver->Onidle() : mIdleObserver->Onactive();
+ }
+ return NS_OK;
+ }
+
+private:
+ nsCOMPtr<nsIIdleObserver> mIdleObserver;
+ uint32_t mTimeInS;
+ RefPtr<nsGlobalWindow> mIdleWindow;
+
+ // If false then call on active
+ bool mCallOnidle;
+};
+
+void
+nsGlobalWindow::NotifyIdleObserver(IdleObserverHolder* aIdleObserverHolder,
+ bool aCallOnidle)
+{
+ MOZ_ASSERT(aIdleObserverHolder);
+ aIdleObserverHolder->mPrevNotificationIdle = aCallOnidle;
+
+ nsCOMPtr<nsIRunnable> caller =
+ new NotifyIdleObserverRunnable(aIdleObserverHolder->mIdleObserver,
+ aIdleObserverHolder->mTimeInS,
+ aCallOnidle, this);
+ if (NS_FAILED(NS_DispatchToCurrentThread(caller))) {
+ NS_WARNING("Failed to dispatch thread for idle observer notification.");
+ }
+}
+
+bool
+nsGlobalWindow::ContainsIdleObserver(nsIIdleObserver* aIdleObserver, uint32_t aTimeInS)
+{
+ MOZ_ASSERT(aIdleObserver, "Idle observer not instantiated.");
+ bool found = false;
+ nsTObserverArray<IdleObserverHolder>::ForwardIterator iter(mIdleObservers);
+ while (iter.HasMore()) {
+ IdleObserverHolder& idleObserver = iter.GetNext();
+ if (idleObserver.mIdleObserver == aIdleObserver &&
+ idleObserver.mTimeInS == aTimeInS) {
+ found = true;
+ break;
+ }
+ }
+ return found;
+}
+
+void
+IdleActiveTimerCallback(nsITimer* aTimer, void* aClosure)
+{
+ RefPtr<nsGlobalWindow> idleWindow = static_cast<nsGlobalWindow*>(aClosure);
+ MOZ_ASSERT(idleWindow, "Idle window has not been instantiated.");
+ idleWindow->HandleIdleActiveEvent();
+}
+
+void
+IdleObserverTimerCallback(nsITimer* aTimer, void* aClosure)
+{
+ RefPtr<nsGlobalWindow> idleWindow = static_cast<nsGlobalWindow*>(aClosure);
+ MOZ_ASSERT(idleWindow, "Idle window has not been instantiated.");
+ idleWindow->HandleIdleObserverCallback();
+}
+
+void
+nsGlobalWindow::HandleIdleObserverCallback()
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+ MOZ_ASSERT(static_cast<uint32_t>(mIdleCallbackIndex) < mIdleObservers.Length(),
+ "Idle callback index exceeds array bounds!");
+ IdleObserverHolder& idleObserver = mIdleObservers.ElementAt(mIdleCallbackIndex);
+ NotifyIdleObserver(&idleObserver, true);
+ mIdleCallbackIndex++;
+ if (NS_FAILED(ScheduleNextIdleObserverCallback())) {
+ NS_WARNING("Failed to set next idle observer callback.");
+ }
+}
+
+nsresult
+nsGlobalWindow::ScheduleNextIdleObserverCallback()
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+ MOZ_ASSERT(mIdleService, "No idle service!");
+
+ if (mIdleCallbackIndex < 0 ||
+ static_cast<uint32_t>(mIdleCallbackIndex) >= mIdleObservers.Length()) {
+ return NS_OK;
+ }
+
+ IdleObserverHolder& idleObserver =
+ mIdleObservers.ElementAt(mIdleCallbackIndex);
+
+ uint32_t userIdleTimeMS = 0;
+ nsresult rv = mIdleService->GetIdleTime(&userIdleTimeMS);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ uint32_t callbackTimeMS = 0;
+ if (idleObserver.mTimeInS * 1000 + mIdleFuzzFactor > userIdleTimeMS) {
+ callbackTimeMS = idleObserver.mTimeInS * 1000 - userIdleTimeMS + mIdleFuzzFactor;
+ }
+
+ mIdleTimer->Cancel();
+ rv = mIdleTimer->InitWithFuncCallback(IdleObserverTimerCallback,
+ this,
+ callbackTimeMS,
+ nsITimer::TYPE_ONE_SHOT);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+uint32_t
+nsGlobalWindow::GetFuzzTimeMS()
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+
+ if (sIdleObserversAPIFuzzTimeDisabled) {
+ return 0;
+ }
+
+ uint32_t randNum = MAX_IDLE_FUZZ_TIME_MS;
+ size_t nbytes = PR_GetRandomNoise(&randNum, sizeof(randNum));
+ if (nbytes != sizeof(randNum)) {
+ NS_WARNING("PR_GetRandomNoise(...) Not implemented or no available noise!");
+ return MAX_IDLE_FUZZ_TIME_MS;
+ }
+
+ if (randNum > MAX_IDLE_FUZZ_TIME_MS) {
+ randNum %= MAX_IDLE_FUZZ_TIME_MS;
+ }
+
+ return randNum;
+}
+
+nsresult
+nsGlobalWindow::ScheduleActiveTimerCallback()
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+
+ if (!mAddActiveEventFuzzTime) {
+ return HandleIdleActiveEvent();
+ }
+
+ MOZ_ASSERT(mIdleTimer);
+ mIdleTimer->Cancel();
+
+ uint32_t fuzzFactorInMS = GetFuzzTimeMS();
+ nsresult rv = mIdleTimer->InitWithFuncCallback(IdleActiveTimerCallback,
+ this,
+ fuzzFactorInMS,
+ nsITimer::TYPE_ONE_SHOT);
+ NS_ENSURE_SUCCESS(rv, rv);
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::HandleIdleActiveEvent()
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+
+ if (mCurrentlyIdle) {
+ mIdleCallbackIndex = 0;
+ mIdleFuzzFactor = GetFuzzTimeMS();
+ nsresult rv = ScheduleNextIdleObserverCallback();
+ NS_ENSURE_SUCCESS(rv, rv);
+ return NS_OK;
+ }
+
+ mIdleCallbackIndex = -1;
+ MOZ_ASSERT(mIdleTimer);
+ mIdleTimer->Cancel();
+ nsTObserverArray<IdleObserverHolder>::ForwardIterator iter(mIdleObservers);
+ while (iter.HasMore()) {
+ IdleObserverHolder& idleObserver = iter.GetNext();
+ if (idleObserver.mPrevNotificationIdle) {
+ NotifyIdleObserver(&idleObserver, false);
+ }
+ }
+
+ return NS_OK;
+}
+
+nsGlobalWindow::SlowScriptResponse
+nsGlobalWindow::ShowSlowScriptDialog()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsresult rv;
+ AutoJSContext cx;
+
+ 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_ReportWarningASCII(cx, "A long running script was terminated");
+ return KillSlowScript;
+ }
+
+ // If our document is not active, just kill the script: we've been unloaded
+ if (!AsInner()->HasActiveDocument()) {
+ return KillSlowScript;
+ }
+
+ // Check if we should offer the option to debug
+ JS::AutoFilename filename;
+ unsigned lineno;
+ bool hasFrame = JS::DescribeScriptedCaller(cx, &filename, &lineno);
+
+ // 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<nsITabChild> child = docShell ? docShell->GetTabChild() : nullptr;
+ action = monitor->NotifySlowScript(child,
+ filename.get(),
+ lineno);
+ if (action == ProcessHangMonitor::Terminate) {
+ return KillSlowScript;
+ }
+
+ 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<nsGlobalWindow> outer = GetOuterWindowInternal();
+ outer->EnterModalState();
+ while (!monitor->IsDebuggerStartupComplete()) {
+ NS_ProcessNextEvent(nullptr, true);
+ }
+ 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 showDebugButton = !!debugCallback;
+
+ // Get localizable strings
+ nsXPIDLString title, msg, stopButton, waitButton, debugButton, neverShowDlg;
+
+ rv = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "KillScriptTitle",
+ title);
+
+ nsresult tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "StopScriptButton",
+ stopButton);
+ if (NS_FAILED(tmp)) {
+ rv = tmp;
+ }
+
+ tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "WaitForScriptButton",
+ waitButton);
+ if (NS_FAILED(tmp)) {
+ rv = tmp;
+ }
+
+ tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "DontAskAgain",
+ neverShowDlg);
+ if (NS_FAILED(tmp)) {
+ rv = tmp;
+ }
+
+
+ if (showDebugButton) {
+ tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "DebugScriptButton",
+ debugButton);
+ if (NS_FAILED(tmp)) {
+ rv = tmp;
+ }
+
+ tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "KillScriptWithDebugMessage",
+ msg);
+ if (NS_FAILED(tmp)) {
+ rv = tmp;
+ }
+ }
+ else {
+ tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "KillScriptMessage",
+ msg);
+ if (NS_FAILED(tmp)) {
+ rv = tmp;
+ }
+ }
+
+ // GetStringFromName can return NS_OK and still give nullptr string
+ if (NS_FAILED(rv) || !title || !msg || !stopButton || !waitButton ||
+ (!debugButton && showDebugButton) || !neverShowDlg) {
+ NS_ERROR("Failed to get localized strings.");
+ return ContinueSlowScript;
+ }
+
+ // Append file and line number information, if available
+ if (filename.get()) {
+ nsXPIDLString 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.Replace(cutStart, cutLength, NS_LITERAL_STRING(u"\x2026"));
+ }
+ const char16_t *formatParams[] = { filenameUTF16.get() };
+ rv = nsContentUtils::FormatLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+ "KillScriptLocation",
+ formatParams,
+ scriptLocation);
+
+ if (NS_SUCCEEDED(rv) && scriptLocation) {
+ msg.AppendLiteral("\n\n");
+ msg.Append(scriptLocation);
+ msg.Append(':');
+ msg.AppendInt(lineno);
+ }
+ }
+
+ int32_t buttonPressed = 0; // In case the user exits dialog by clicking X.
+ bool neverShowDlgChk = false;
+ 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;
+
+ // Null out the operation callback while we're re-entering JS here.
+ bool old = JS_DisableInterruptCallback(cx);
+
+ // Open the dialog.
+ rv = prompt->ConfirmEx(title, msg, buttonFlags, waitButton, stopButton,
+ debugButton, neverShowDlg, &neverShowDlgChk,
+ &buttonPressed);
+
+ JS_ResetInterruptCallback(cx, old);
+
+ if (NS_SUCCEEDED(rv) && (buttonPressed == 0)) {
+ return neverShowDlgChk ? AlwaysContinueSlowScript : ContinueSlowScript;
+ }
+ if (buttonPressed == 2) {
+ if (debugCallback) {
+ rv = debugCallback->HandleSlowScriptDebug(this);
+ return NS_SUCCEEDED(rv) ? ContinueSlowScript : KillSlowScript;
+ }
+ }
+ JS_ClearPendingException(cx);
+ return KillSlowScript;
+}
+
+uint32_t
+nsGlobalWindow::FindInsertionIndex(IdleObserverHolder* aIdleObserver)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ MOZ_ASSERT(aIdleObserver, "Idle observer not instantiated.");
+
+ uint32_t i = 0;
+ nsTObserverArray<IdleObserverHolder>::ForwardIterator iter(mIdleObservers);
+ while (iter.HasMore()) {
+ IdleObserverHolder& idleObserver = iter.GetNext();
+ if (idleObserver.mTimeInS > aIdleObserver->mTimeInS) {
+ break;
+ }
+ i++;
+ MOZ_ASSERT(i <= mIdleObservers.Length(), "Array index out of bounds error.");
+ }
+
+ return i;
+}
+
+nsresult
+nsGlobalWindow::RegisterIdleObserver(nsIIdleObserver* aIdleObserver)
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+
+ nsresult rv;
+ if (mIdleObservers.IsEmpty()) {
+ mIdleService = do_GetService("@mozilla.org/widget/idleservice;1", &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = mIdleService->AddIdleObserver(mObserver, MIN_IDLE_NOTIFICATION_TIME_S);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!mIdleTimer) {
+ mIdleTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+ } else {
+ mIdleTimer->Cancel();
+ }
+ }
+
+ MOZ_ASSERT(mIdleService);
+ MOZ_ASSERT(mIdleTimer);
+
+ IdleObserverHolder tmpIdleObserver;
+ tmpIdleObserver.mIdleObserver = aIdleObserver;
+ rv = aIdleObserver->GetTime(&tmpIdleObserver.mTimeInS);
+ NS_ENSURE_SUCCESS(rv, rv);
+ NS_ENSURE_ARG_MAX(tmpIdleObserver.mTimeInS, UINT32_MAX / 1000);
+ NS_ENSURE_ARG_MIN(tmpIdleObserver.mTimeInS, MIN_IDLE_NOTIFICATION_TIME_S);
+
+ uint32_t insertAtIndex = FindInsertionIndex(&tmpIdleObserver);
+ if (insertAtIndex == mIdleObservers.Length()) {
+ mIdleObservers.AppendElement(tmpIdleObserver);
+ }
+ else {
+ mIdleObservers.InsertElementAt(insertAtIndex, tmpIdleObserver);
+ }
+
+ bool userIsIdle = false;
+ rv = nsContentUtils::IsUserIdle(MIN_IDLE_NOTIFICATION_TIME_S, &userIsIdle);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Special case. First idle observer added to empty list while the user is idle.
+ // Haven't received 'idle' topic notification from slow idle service yet.
+ // Need to wait for the idle notification and then notify idle observers in the list.
+ if (userIsIdle && mIdleCallbackIndex == -1) {
+ return NS_OK;
+ }
+
+ if (!mCurrentlyIdle) {
+ return NS_OK;
+ }
+
+ MOZ_ASSERT(mIdleCallbackIndex >= 0);
+
+ if (static_cast<int32_t>(insertAtIndex) < mIdleCallbackIndex) {
+ IdleObserverHolder& idleObserver = mIdleObservers.ElementAt(insertAtIndex);
+ NotifyIdleObserver(&idleObserver, true);
+ mIdleCallbackIndex++;
+ return NS_OK;
+ }
+
+ if (static_cast<int32_t>(insertAtIndex) == mIdleCallbackIndex) {
+ mIdleTimer->Cancel();
+ rv = ScheduleNextIdleObserverCallback();
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::FindIndexOfElementToRemove(nsIIdleObserver* aIdleObserver,
+ int32_t* aRemoveElementIndex)
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+ MOZ_ASSERT(aIdleObserver, "Idle observer not instantiated.");
+
+ *aRemoveElementIndex = 0;
+ if (mIdleObservers.IsEmpty()) {
+ return NS_ERROR_FAILURE;
+ }
+
+ uint32_t aIdleObserverTimeInS;
+ nsresult rv = aIdleObserver->GetTime(&aIdleObserverTimeInS);
+ NS_ENSURE_SUCCESS(rv, rv);
+ NS_ENSURE_ARG_MIN(aIdleObserverTimeInS, MIN_IDLE_NOTIFICATION_TIME_S);
+
+ nsTObserverArray<IdleObserverHolder>::ForwardIterator iter(mIdleObservers);
+ while (iter.HasMore()) {
+ IdleObserverHolder& idleObserver = iter.GetNext();
+ if (idleObserver.mTimeInS == aIdleObserverTimeInS &&
+ idleObserver.mIdleObserver == aIdleObserver ) {
+ break;
+ }
+ (*aRemoveElementIndex)++;
+ }
+ return static_cast<uint32_t>(*aRemoveElementIndex) >= mIdleObservers.Length() ?
+ NS_ERROR_FAILURE : NS_OK;
+}
+
+nsresult
+nsGlobalWindow::UnregisterIdleObserver(nsIIdleObserver* aIdleObserver)
+{
+ MOZ_ASSERT(IsInnerWindow(), "Must be an inner window!");
+
+ int32_t removeElementIndex;
+ nsresult rv = FindIndexOfElementToRemove(aIdleObserver, &removeElementIndex);
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Idle observer not found in list of idle observers. No idle observer removed.");
+ return NS_OK;
+ }
+ mIdleObservers.RemoveElementAt(removeElementIndex);
+
+ MOZ_ASSERT(mIdleTimer);
+ if (mIdleObservers.IsEmpty() && mIdleService) {
+ rv = mIdleService->RemoveIdleObserver(mObserver, MIN_IDLE_NOTIFICATION_TIME_S);
+ NS_ENSURE_SUCCESS(rv, rv);
+ mIdleService = nullptr;
+
+ mIdleTimer->Cancel();
+ mIdleCallbackIndex = -1;
+ return NS_OK;
+ }
+
+ if (!mCurrentlyIdle) {
+ return NS_OK;
+ }
+
+ if (removeElementIndex < mIdleCallbackIndex) {
+ mIdleCallbackIndex--;
+ return NS_OK;
+ }
+
+ if (removeElementIndex != mIdleCallbackIndex) {
+ return NS_OK;
+ }
+
+ mIdleTimer->Cancel();
+
+ // If the last element in the array had been notified then decrement
+ // mIdleCallbackIndex because an idle was removed from the list of
+ // idle observers.
+ // Example: add idle observer with time 1, 2, 3,
+ // Idle notifications for idle observers with time 1, 2, 3 are complete
+ // Remove idle observer with time 3 while the user is still idle.
+ // The user never transitioned to active state.
+ // Add an idle observer with idle time 4
+ if (static_cast<uint32_t>(mIdleCallbackIndex) == mIdleObservers.Length()) {
+ mIdleCallbackIndex--;
+ }
+ rv = ScheduleNextIdleObserverCallback();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return NS_OK;
+}
+
+nsresult
+nsGlobalWindow::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, OBSERVER_TOPIC_IDLE)) {
+ mCurrentlyIdle = true;
+ if (IsFrozen()) {
+ // need to fire only one idle event while the window is frozen.
+ mNotifyIdleObserversIdleOnThaw = true;
+ mNotifyIdleObserversActiveOnThaw = false;
+ } else if (AsInner()->IsCurrentInnerWindow()) {
+ HandleIdleActiveEvent();
+ }
+ return NS_OK;
+ }
+
+ if (!nsCRT::strcmp(aTopic, OBSERVER_TOPIC_ACTIVE)) {
+ mCurrentlyIdle = false;
+ if (IsFrozen()) {
+ mNotifyIdleObserversActiveOnThaw = true;
+ mNotifyIdleObserversIdleOnThaw = false;
+ } else if (AsInner()->IsCurrentInnerWindow()) {
+ MOZ_ASSERT(IsInnerWindow());
+ ScheduleActiveTimerCallback();
+ }
+ return NS_OK;
+ }
+
+ if (!nsCRT::strcmp(aTopic, "dom-storage2-changed")) {
+ if (!IsInnerWindow() || !AsInner()->IsCurrentInnerWindow()) {
+ return NS_OK;
+ }
+
+ nsIPrincipal *principal;
+ nsresult rv;
+
+ RefPtr<StorageEvent> event = static_cast<StorageEvent*>(aSubject);
+ if (!event) {
+ return NS_ERROR_FAILURE;
+ }
+
+ RefPtr<DOMStorage> changingStorage = event->GetStorageArea();
+ if (!changingStorage) {
+ return NS_ERROR_FAILURE;
+ }
+
+ nsCOMPtr<nsIDOMStorage> istorage = changingStorage.get();
+
+ bool fireMozStorageChanged = false;
+ nsAutoString eventType;
+ eventType.AssignLiteral("storage");
+ principal = GetPrincipal();
+ if (!principal) {
+ return NS_OK;
+ }
+
+ if (changingStorage->IsPrivate() != IsPrivateBrowsing()) {
+ return NS_OK;
+ }
+
+ switch (changingStorage->GetType())
+ {
+ case DOMStorage::SessionStorage:
+ {
+ bool check = false;
+
+ nsCOMPtr<nsIDOMStorageManager> storageManager = do_QueryInterface(GetDocShell());
+ if (storageManager) {
+ rv = storageManager->CheckStorage(principal, istorage, &check);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+ }
+
+ 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 NS_OK;
+ }
+
+ if (MOZ_LOG_TEST(gDOMLeakPRLog, LogLevel::Debug)) {
+ PR_LogPrint("nsGlobalWindow %p with sessionStorage %p passing event from %p",
+ this, mSessionStorage.get(), changingStorage.get());
+ }
+
+ fireMozStorageChanged = mSessionStorage == changingStorage;
+ if (fireMozStorageChanged) {
+ eventType.AssignLiteral("MozSessionStorageChanged");
+ }
+ break;
+ }
+
+ case DOMStorage::LocalStorage:
+ {
+ // Allow event fire only for the same principal storages
+ // XXX We have to use EqualsIgnoreDomain after bug 495337 lands
+ nsIPrincipal* storagePrincipal = changingStorage->GetPrincipal();
+
+ bool equals = false;
+ rv = storagePrincipal->Equals(principal, &equals);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (!equals)
+ return NS_OK;
+
+ fireMozStorageChanged = mLocalStorage == changingStorage;
+ if (fireMozStorageChanged) {
+ eventType.AssignLiteral("MozLocalStorageChanged");
+ }
+ break;
+ }
+ default:
+ return NS_OK;
+ }
+
+ // Clone the storage event included in the observer notification. We want
+ // to dispatch clones rather than the original event.
+ ErrorResult error;
+ RefPtr<StorageEvent> newEvent = CloneStorageEvent(eventType, event, error);
+ if (error.Failed()) {
+ return error.StealNSResult();
+ }
+
+ newEvent->SetTrusted(true);
+
+ if (fireMozStorageChanged) {
+ WidgetEvent* internalEvent = newEvent->WidgetEventPtr();
+ internalEvent->mFlags.mOnlyChromeDispatch = true;
+ }
+
+ if (IsFrozen()) {
+ // This window is frozen, rather than firing the events here,
+ // store the domain in which the change happened and fire the
+ // events if we're ever thawed.
+
+ mPendingStorageEvents.AppendElement(newEvent);
+ return NS_OK;
+ }
+
+ bool defaultActionEnabled;
+ DispatchEvent(newEvent, &defaultActionEnabled);
+
+ 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<nsIDOMOfflineResourceList> applicationCache = GetApplicationCache();
+ nsCOMPtr<nsIObserver> observer = do_QueryInterface(applicationCache);
+ if (observer)
+ observer->Observe(aSubject, aTopic, aData);
+
+ return NS_OK;
+ }
+
+#ifdef MOZ_B2G
+ if (!nsCRT::strcmp(aTopic, NS_NETWORK_ACTIVITY_BLIP_UPLOAD_TOPIC) ||
+ !nsCRT::strcmp(aTopic, NS_NETWORK_ACTIVITY_BLIP_DOWNLOAD_TOPIC)) {
+ MOZ_ASSERT(IsInnerWindow());
+ if (!AsInner()->IsCurrentInnerWindow()) {
+ return NS_OK;
+ }
+
+ RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
+ event->InitEvent(
+ !nsCRT::strcmp(aTopic, NS_NETWORK_ACTIVITY_BLIP_UPLOAD_TOPIC)
+ ? NETWORK_UPLOAD_EVENT_NAME
+ : NETWORK_DOWNLOAD_EVENT_NAME,
+ false, false);
+ event->SetTrusted(true);
+
+ bool dummy;
+ return DispatchEvent(event, &dummy);
+ }
+#endif // MOZ_B2G
+
+ if (!nsCRT::strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID)) {
+ MOZ_ASSERT(!NS_strcmp(aData, u"intl.accept_languages"));
+ MOZ_ASSERT(IsInnerWindow());
+
+ // 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) {
+ NavigatorBinding::ClearCachedLanguageValue(mNavigator);
+ NavigatorBinding::ClearCachedLanguagesValue(mNavigator);
+ }
+
+ // The event has to be dispatched only to the current inner window.
+ if (!AsInner()->IsCurrentInnerWindow()) {
+ return NS_OK;
+ }
+
+ RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
+ event->InitEvent(NS_LITERAL_STRING("languagechange"), false, false);
+ event->SetTrusted(true);
+
+ bool dummy;
+ return DispatchEvent(event, &dummy);
+ }
+
+ NS_WARNING("unrecognized topic in nsGlobalWindow::Observe");
+ return NS_ERROR_FAILURE;
+}
+
+already_AddRefed<StorageEvent>
+nsGlobalWindow::CloneStorageEvent(const nsAString& aType,
+ const RefPtr<StorageEvent>& aEvent,
+ ErrorResult& aRv)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ 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<DOMStorage> storageArea = aEvent->GetStorageArea();
+ MOZ_ASSERT(storageArea);
+
+ RefPtr<DOMStorage> storage;
+ if (storageArea->GetType() == DOMStorage::LocalStorage) {
+ storage = GetLocalStorage(aRv);
+ } else {
+ MOZ_ASSERT(storageArea->GetType() == DOMStorage::SessionStorage);
+ storage = GetSessionStorage(aRv);
+ }
+
+ if (aRv.Failed() || !storage) {
+ return nullptr;
+ }
+
+ MOZ_ASSERT(storage);
+ MOZ_ASSERT(storage->IsForkOf(storageArea));
+
+ dict.mStorageArea = storage;
+
+ RefPtr<StorageEvent> event = StorageEvent::Constructor(this, aType, dict);
+ return event.forget();
+}
+
+void
+nsGlobalWindow::Suspend()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_DIAGNOSTIC_ASSERT(IsInnerWindow());
+
+ // 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 (!AsInner()->IsCurrentInnerWindow()) {
+ return;
+ }
+
+ // All children are also suspended. This ensure mSuspendDepth is
+ // set properly and the timers are properly canceled for each child.
+ CallOnChildren(&nsGlobalWindow::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();
+
+ mozilla::dom::workers::SuspendWorkersForWindow(AsInner());
+
+ for (Timeout* t = mTimeouts.getFirst(); t; t = t->getNext()) {
+ // Leave the timers with the current time remaining. This will
+ // cause the timers to potentially fire when the window is
+ // Resume()'d. Time effectively passes while suspended.
+
+ // Drop the XPCOM timer; we'll reschedule when restoring the state.
+ if (t->mTimer) {
+ t->mTimer->Cancel();
+ t->mTimer = nullptr;
+
+ // Drop the reference that the timer's closure had on this timeout, we'll
+ // add it back in Resume().
+ t->Release();
+ }
+ }
+
+ // Suspend all of the AudioContexts for this window
+ for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
+ ErrorResult dummy;
+ RefPtr<Promise> d = mAudioContexts[i]->Suspend(dummy);
+ }
+}
+
+void
+nsGlobalWindow::Resume()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_DIAGNOSTIC_ASSERT(IsInnerWindow());
+
+ // 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 (!AsInner()->IsCurrentInnerWindow()) {
+ return;
+ }
+
+ // Resume all children. This restores timers recursively canceled
+ // in Suspend() and ensures all children have the correct mSuspendDepth.
+ CallOnChildren(&nsGlobalWindow::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) {
+ ErrorResult dummy;
+ RefPtr<Promise> d = mAudioContexts[i]->Resume(dummy);
+ }
+
+ TimeStamp now = TimeStamp::Now();
+ DebugOnly<bool> _seenDummyTimeout = false;
+
+ for (Timeout* t = mTimeouts.getFirst(); t; t = t->getNext()) {
+ // There's a chance we're being called with RunTimeout on the stack in which
+ // case we have a dummy timeout in the list that *must not* be resumed. It
+ // can be identified by a null mWindow.
+ if (!t->mWindow) {
+ NS_ASSERTION(!_seenDummyTimeout, "More than one dummy timeout?!");
+ _seenDummyTimeout = true;
+ continue;
+ }
+
+ MOZ_ASSERT(!t->mTimer);
+
+ // The timeout mWhen is set to the absolute time when the timer should
+ // fire. Recalculate the delay from now until that deadline. If the
+ // the deadline has already passed or falls within our minimum delay
+ // deadline, then clamp the resulting value to the minimum delay. The
+ // mWhen will remain at its absolute time, but we won't fire the OS
+ // timer until our calculated delay has passed.
+ int32_t remaining = 0;
+ if (t->mWhen > now) {
+ remaining = static_cast<int32_t>((t->mWhen - now).ToMilliseconds());
+ }
+ uint32_t delay = std::max(remaining, DOMMinTimeoutValue());
+
+ t->mTimer = do_CreateInstance("@mozilla.org/timer;1");
+ if (!t->mTimer) {
+ t->remove();
+ continue;
+ }
+
+ nsresult rv = t->InitTimer(GetThrottledEventQueue(), delay);
+ if (NS_FAILED(rv)) {
+ t->mTimer = nullptr;
+ t->remove();
+ continue;
+ }
+
+ // Add a reference for the new timer's closure.
+ t->AddRef();
+ }
+
+ // 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().
+ mozilla::dom::workers::ResumeWorkersForWindow(AsInner());
+}
+
+bool
+nsGlobalWindow::IsSuspended() const
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ // No inner means we are effectively suspended
+ if (IsOuterWindow()) {
+ if (!mInnerWindow) {
+ return true;
+ }
+ return mInnerWindow->IsSuspended();
+ }
+ return mSuspendDepth != 0;
+}
+
+void
+nsGlobalWindow::Freeze()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ Suspend();
+ FreezeInternal();
+}
+
+void
+nsGlobalWindow::FreezeInternal()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_DIAGNOSTIC_ASSERT(IsInnerWindow());
+ MOZ_DIAGNOSTIC_ASSERT(AsInner()->IsCurrentInnerWindow());
+ MOZ_DIAGNOSTIC_ASSERT(IsSuspended());
+
+ CallOnChildren(&nsGlobalWindow::FreezeInternal);
+
+ mFreezeDepth += 1;
+ MOZ_ASSERT(mSuspendDepth >= mFreezeDepth);
+ if (mFreezeDepth != 1) {
+ return;
+ }
+
+ mozilla::dom::workers::FreezeWorkersForWindow(AsInner());
+
+ TimeStamp now = TimeStamp::Now();
+ for (Timeout *t = mTimeouts.getFirst(); t; t = t->getNext()) {
+ // Save the current remaining time for this timeout. We will
+ // re-apply it when the window is Thaw()'d. This effectively
+ // shifts timers to the right as if time does not pass while
+ // the window is frozen.
+ if (t->mWhen > now) {
+ t->mTimeRemaining = t->mWhen - now;
+ } else {
+ t->mTimeRemaining = TimeDuration(0);
+ }
+
+ // Since we are suspended there should be no OS timer set for
+ // this timeout entry.
+ MOZ_ASSERT(!t->mTimer);
+ }
+
+ NotifyDOMWindowFrozen(this);
+}
+
+void
+nsGlobalWindow::Thaw()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ ThawInternal();
+ Resume();
+}
+
+void
+nsGlobalWindow::ThawInternal()
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_DIAGNOSTIC_ASSERT(IsInnerWindow());
+ MOZ_DIAGNOSTIC_ASSERT(AsInner()->IsCurrentInnerWindow());
+ MOZ_DIAGNOSTIC_ASSERT(IsSuspended());
+
+ CallOnChildren(&nsGlobalWindow::ThawInternal);
+
+ MOZ_ASSERT(mFreezeDepth != 0);
+ mFreezeDepth -= 1;
+ MOZ_ASSERT(mSuspendDepth >= mFreezeDepth);
+ if (mFreezeDepth != 0) {
+ return;
+ }
+
+ TimeStamp now = TimeStamp::Now();
+ DebugOnly<bool> _seenDummyTimeout = false;
+
+ for (Timeout *t = mTimeouts.getFirst(); t; t = t->getNext()) {
+ // There's a chance we're being called with RunTimeout on the stack in which
+ // case we have a dummy timeout in the list that *must not* be resumed. It
+ // can be identified by a null mWindow.
+ if (!t->mWindow) {
+ NS_ASSERTION(!_seenDummyTimeout, "More than one dummy timeout?!");
+ _seenDummyTimeout = true;
+ continue;
+ }
+
+ // Set mWhen back to the time when the timer is supposed to fire.
+ t->mWhen = now + t->mTimeRemaining;
+
+ MOZ_ASSERT(!t->mTimer);
+ }
+
+ mozilla::dom::workers::ThawWorkersForWindow(AsInner());
+
+ NotifyDOMWindowThawed(this);
+}
+
+bool
+nsGlobalWindow::IsFrozen() const
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ // No inner means we are effectively frozen
+ if (IsOuterWindow()) {
+ if (!mInnerWindow) {
+ return true;
+ }
+ return mInnerWindow->IsFrozen();
+ }
+ bool frozen = mFreezeDepth != 0;
+ MOZ_ASSERT_IF(frozen, IsSuspended());
+ return frozen;
+}
+
+void
+nsGlobalWindow::SyncStateFromParentWindow()
+{
+ // This method should only be called on an inner window that has been
+ // assigned to an outer window already.
+ MOZ_ASSERT(IsInnerWindow());
+ MOZ_ASSERT(AsInner()->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;
+ nsGlobalWindow* parentInner =
+ parentOuter ? nsGlobalWindow::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>
+void
+nsGlobalWindow::CallOnChildren(Method aMethod)
+{
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(IsInnerWindow());
+ MOZ_ASSERT(AsInner()->IsCurrentInnerWindow());
+
+ nsCOMPtr<nsIDocShell> docShell = GetDocShell();
+ if (!docShell) {
+ return;
+ }
+
+ int32_t childCount = 0;
+ docShell->GetChildCount(&childCount);
+
+ for (int32_t i = 0; i < childCount; ++i) {
+ nsCOMPtr<nsIDocShellTreeItem> childShell;
+ docShell->GetChildAt(i, getter_AddRefs(childShell));
+ NS_ASSERTION(childShell, "null child shell");
+
+ nsCOMPtr<nsPIDOMWindowOuter> pWin = childShell->GetWindow();
+ if (!pWin) {
+ continue;
+ }
+
+ auto* win = nsGlobalWindow::Cast(pWin);
+ nsGlobalWindow* 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;
+ }
+
+ (inner->*aMethod)();
+ }
+}
+
+nsresult
+nsGlobalWindow::FireDelayedDOMEvents()
+{
+ FORWARD_TO_INNER(FireDelayedDOMEvents, (), NS_ERROR_UNEXPECTED);
+
+ for (uint32_t i = 0, len = mPendingStorageEvents.Length(); i < len; ++i) {
+ Observe(mPendingStorageEvents[i], "dom-storage2-changed", nullptr);
+ }
+
+ if (mApplicationCache) {
+ static_cast<nsDOMOfflineResourceList*>(mApplicationCache.get())->FirePendingEvents();
+ }
+
+ // Fires an offline status event if the offline status has changed
+ FireOfflineStatusEventIfChanged();
+
+ if (mNotifyIdleObserversIdleOnThaw) {
+ mNotifyIdleObserversIdleOnThaw = false;
+ HandleIdleActiveEvent();
+ }
+
+ if (mNotifyIdleObserversActiveOnThaw) {
+ mNotifyIdleObserversActiveOnThaw = false;
+ ScheduleActiveTimerCallback();
+ }
+
+ nsCOMPtr<nsIDocShell> docShell = GetDocShell();
+ if (docShell) {
+ int32_t childCount = 0;
+ docShell->GetChildCount(&childCount);
+
+ for (int32_t i = 0; i < childCount; ++i) {
+ nsCOMPtr<nsIDocShellTreeItem> childShell;
+ docShell->GetChildAt(i, getter_AddRefs(childShell));
+ NS_ASSERTION(childShell, "null child shell");
+
+ if (nsCOMPtr<nsPIDOMWindowOuter> pWin = childShell->GetWindow()) {
+ auto* win = nsGlobalWindow::Cast(pWin);
+ win->FireDelayedDOMEvents();
+ }
+ }
+ }
+
+ return NS_OK;
+}
+
+//*****************************************************************************
+// nsGlobalWindow: Window Control Functions
+//*****************************************************************************
+
+nsPIDOMWindowOuter*
+nsGlobalWindow::GetParentInternal()
+{
+ if (IsInnerWindow()) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer) {
+ NS_WARNING("No outer window available!");
+ return nullptr;
+ }
+ return outer->GetParentInternal();
+ }
+
+ nsCOMPtr<nsPIDOMWindowOuter> parent = GetParent();
+
+ if (parent && parent != AsOuter()) {
+ return parent;
+ }
+
+ return nullptr;
+}
+
+void
+nsGlobalWindow::UnblockScriptedClosing()
+{
+ MOZ_ASSERT(IsOuterWindow());
+ mBlockScriptedClosingFlag = false;
+}
+
+class AutoUnblockScriptClosing
+{
+private:
+ RefPtr<nsGlobalWindow> mWin;
+public:
+ explicit AutoUnblockScriptClosing(nsGlobalWindow* aWin)
+ : mWin(aWin)
+ {
+ MOZ_ASSERT(mWin);
+ MOZ_ASSERT(mWin->IsOuterWindow());
+ }
+ ~AutoUnblockScriptClosing()
+ {
+ void (nsGlobalWindow::*run)() = &nsGlobalWindow::UnblockScriptedClosing;
+ NS_DispatchToCurrentThread(NewRunnableMethod(mWin, run));
+ }
+};
+
+nsresult
+nsGlobalWindow::OpenInternal(const nsAString& aUrl, const nsAString& aName,
+ const nsAString& aOptions, bool aDialog,
+ bool aContentModal, bool aCalledNoScript,
+ bool aDoJSFixups, bool aNavigate,
+ nsIArray *argv,
+ nsISupports *aExtraArgument,
+ nsIDocShellLoadInfo* aLoadInfo,
+ bool aForceNoOpener,
+ nsPIDOMWindowOuter **aReturn)
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+#ifdef DEBUG
+ uint32_t argc = 0;
+ if (argv)
+ argv->GetLength(&argc);
+#endif
+ NS_PRECONDITION(!aExtraArgument || (!argv && argc == 0),
+ "Can't pass in arguments both ways");
+ NS_PRECONDITION(!aCalledNoScript || (!argv && argc == 0),
+ "Can't pass JS args when called via the noscript methods");
+
+ mozilla::Maybe<AutoUnblockScriptClosing> closeUnblocker;
+
+ // Calls to window.open from script should navigate.
+ MOZ_ASSERT(aCalledNoScript || aNavigate);
+
+ *aReturn = nullptr;
+
+ nsCOMPtr<nsIWebBrowserChrome> chrome = GetWebBrowserChrome();
+ if (!chrome) {
+ // No chrome means we don't want to go through with this open call
+ // -- see nsIWindowWatcher.idl
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ NS_ASSERTION(mDocShell, "Must have docshell here");
+
+ // Popups from apps are never blocked.
+ bool isApp = false;
+ if (mDoc) {
+ isApp = mDoc->NodePrincipal()->GetAppStatus() >=
+ nsIPrincipal::APP_STATUS_INSTALLED;
+ }
+
+ bool forceNoOpener = aForceNoOpener;
+ if (!forceNoOpener) {
+ // Unlike other window flags, "noopener" comes from splitting on commas with
+ // HTML whitespace trimming...
+ nsCharSeparatedTokenizerTemplate<nsContentUtils::IsHTMLWhitespace> tok(
+ aOptions, ',');
+ while (tok.hasMoreTokens()) {
+ if (tok.nextToken().EqualsLiteral("noopener")) {
+ forceNoOpener = true;
+ break;
+ }
+ }
+ }
+
+ // XXXbz When this gets fixed to not use LegacyIsCallerNativeCode()
+ // (indirectly) maybe we can nix the AutoJSAPI usage OnLinkClickEvent::Run.
+ // But note that if you change this to GetEntryGlobal(), say, then
+ // OnLinkClickEvent::Run will need a full-blown AutoEntryScript.
+ const bool checkForPopup = !nsContentUtils::LegacyIsCallerChromeOrNativeCode() &&
+ !isApp && !aDialog && !WindowExists(aName, forceNoOpener, !aCalledNoScript);
+
+ // Note: it's very important that this be an nsXPIDLCString, since we want
+ // .get() on it to return nullptr until we write stuff to it. The window
+ // watcher expects a null URL string if there is no URL to load.
+ nsXPIDLCString url;
+ nsresult rv = NS_OK;
+
+ // It's important to do this security check before determining whether this
+ // window opening should be blocked, to ensure that we don't FireAbuseEvents
+ // for a window opening that wouldn't have succeeded in the first place.
+ if (!aUrl.IsEmpty()) {
+ AppendUTF16toUTF8(aUrl, url);
+
+ // It's safe to skip the security check below if we're not a dialog
+ // because window.openDialog is not callable from content script. See bug
+ // 56851.
+ //
+ // If we're not navigating, we assume that whoever *does* navigate the
+ // window will do a security check of their own.
+ if (url.get() && !aDialog && aNavigate)
+ rv = SecurityCheckURL(url.get());
+ }
+
+ if (NS_FAILED(rv))
+ return rv;
+
+ PopupControlState abuseLevel = gPopupControlState;
+ if (checkForPopup) {
+ abuseLevel = RevisePopupAbuseLevel(abuseLevel);
+ if (abuseLevel >= openAbused) {
+ if (!aCalledNoScript) {
+ // If script in some other window is doing a window.open on us and
+ // it's being blocked, then it's OK to close us afterwards, probably.
+ // But if we're doing a window.open on ourselves and block the popup,
+ // prevent this window from closing until after this script terminates
+ // so that whatever popup blocker UI the app has will be visible.
+ nsCOMPtr<nsPIDOMWindowInner> entryWindow =
+ do_QueryInterface(GetEntryGlobal());
+ // Note that entryWindow can be null here if some JS component was the
+ // place where script was entered for this JS execution.
+ if (entryWindow &&
+ entryWindow->GetOuterWindow() == this->AsOuter()) {
+ mBlockScriptedClosingFlag = true;
+ closeUnblocker.emplace(this);
+ }
+ }
+
+ FireAbuseEvents(aUrl, aName, aOptions);
+ return aDoJSFixups ? NS_OK : NS_ERROR_FAILURE;
+ }
+ }
+
+ nsCOMPtr<mozIDOMWindowProxy> domReturn;
+
+ nsCOMPtr<nsIWindowWatcher> wwatch =
+ do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
+ NS_ENSURE_TRUE(wwatch, rv);
+
+ NS_ConvertUTF16toUTF8 options(aOptions);
+ NS_ConvertUTF16toUTF8 name(aName);
+
+ const char *options_ptr = aOptions.IsEmpty() ? nullptr : options.get();
+ const char *name_ptr = aName.IsEmpty() ? nullptr : name.get();
+
+ nsCOMPtr<nsPIWindowWatcher> pwwatch(do_QueryInterface(wwatch));
+ NS_ENSURE_STATE(pwwatch);
+
+ MOZ_ASSERT_IF(checkForPopup, abuseLevel < openAbused);
+ // At this point we should know for a fact that if checkForPopup then
+ // abuseLevel < openAbused, so we could just check for abuseLevel ==
+ // openControlled. But let's be defensive just in case and treat anything
+ // that fails the above assert as a spam popup too, if it ever happens.
+ bool isPopupSpamWindow = checkForPopup && (abuseLevel >= openControlled);
+
+ {
+ // Reset popup state while opening a window to prevent the
+ // current state from being active the whole time a modal
+ // dialog is open.
+ nsAutoPopupStatePusher popupStatePusher(openAbused, true);
+
+ if (!aCalledNoScript) {
+ // We asserted at the top of this function that aNavigate is true for
+ // !aCalledNoScript.
+ rv = pwwatch->OpenWindow2(AsOuter(), url.get(), name_ptr,
+ options_ptr, /* aCalledFromScript = */ true,
+ aDialog, aNavigate, argv,
+ isPopupSpamWindow,
+ forceNoOpener,
+ aLoadInfo,
+ getter_AddRefs(domReturn));
+ } else {
+ // Force a system caller here so that the window watcher won't screw us
+ // up. We do NOT want this case looking at the JS context on the stack
+ // when searching. Compare comments on
+ // nsIDOMWindow::OpenWindow and nsIWindowWatcher::OpenWindow.
+
+ // Note: Because nsWindowWatcher is so broken, it's actually important
+ // that we don't force a system caller here, because that screws it up
+ // when it tries to compute the caller principal to associate with dialog
+ // arguments. That whole setup just really needs to be rewritten. :-(
+ Maybe<AutoNoJSAPI> nojsapi;
+ if (!aContentModal) {
+ nojsapi.emplace();
+ }
+
+ rv = pwwatch->OpenWindow2(AsOuter(), url.get(), name_ptr,
+ options_ptr, /* aCalledFromScript = */ false,
+ aDialog, aNavigate, aExtraArgument,
+ isPopupSpamWindow,
+ forceNoOpener,
+ aLoadInfo,
+ getter_AddRefs(domReturn));
+
+ }
+ }
+
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // success!
+
+ NS_ENSURE_TRUE(domReturn, NS_OK);
+ nsCOMPtr<nsPIDOMWindowOuter> outerReturn =
+ nsPIDOMWindowOuter::From(domReturn);
+ outerReturn.swap(*aReturn);
+
+ if (aDoJSFixups) {
+ nsCOMPtr<nsIDOMChromeWindow> chrome_win(do_QueryInterface(*aReturn));
+ if (!chrome_win) {
+ // A new non-chrome window was created from a call to
+ // window.open() from JavaScript, make sure there's a document in
+ // the new window. We do this by simply asking the new window for
+ // its document, this will synchronously create an empty document
+ // if there is no document in the window.
+ // XXXbz should this just use EnsureInnerWindow()?
+
+ // Force document creation.
+ nsCOMPtr<nsIDocument> doc = (*aReturn)->GetDoc();
+ Unused << doc;
+ }
+ }
+
+ return rv;
+}
+
+//*****************************************************************************
+// nsGlobalWindow: Timeout Functions
+//*****************************************************************************
+
+uint32_t sNestingLevel;
+
+uint32_t
+nsGlobalWindow::GetTimeoutId(Timeout::Reason aReason)
+{
+ switch (aReason) {
+ case Timeout::Reason::eIdleCallbackTimeout:
+ return ++mIdleCallbackTimeoutCounter;
+ case Timeout::Reason::eTimeoutOrInterval:
+ default:
+ return ++mTimeoutIdCounter;
+ }
+}
+
+nsGlobalWindow*
+nsGlobalWindow::InnerForSetTimeoutOrInterval(ErrorResult& aError)
+{
+ nsGlobalWindow* currentInner;
+ nsGlobalWindow* forwardTo;
+ if (IsInnerWindow()) {
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ currentInner = outer ? outer->GetCurrentInnerWindowInternal() : this;
+
+ forwardTo = this;
+ } else {
+ currentInner = GetCurrentInnerWindowInternal();
+
+ // This needs to forward to the inner window, but since the current
+ // inner may not be the inner in the calling scope, we need to treat
+ // this specially here as we don't want timeouts registered in a
+ // dying inner window to get registered and run on the current inner
+ // window. To get this right, we need to forward this call to the
+ // inner window that's calling window.setTimeout().
+
+ forwardTo = CallerInnerWindow();
+ if (!forwardTo && nsContentUtils::IsCallerChrome()) {
+ forwardTo = currentInner;
+ }
+ if (!forwardTo) {
+ aError.Throw(NS_ERROR_NOT_AVAILABLE);
+ return nullptr;
+ }
+
+ // If the caller and the callee share the same outer window, forward to the
+ // caller inner. Else, we forward to the current inner (e.g. someone is
+ // calling setTimeout() on a reference to some other window).
+ if (forwardTo->GetOuterWindow() != AsOuter() ||
+ !forwardTo->IsInnerWindow()) {
+ if (!currentInner) {
+ NS_WARNING("No inner window available!");
+ aError.Throw(NS_ERROR_NOT_INITIALIZED);
+ return nullptr;
+ }
+
+ return currentInner;
+ }
+ }
+
+ // 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 forwardTo->AsInner()->HasActiveDocument() ? currentInner : nullptr;
+}
+
+int32_t
+nsGlobalWindow::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
+nsGlobalWindow::SetTimeout(JSContext* aCx, const nsAString& aHandler,
+ int32_t aTimeout,
+ const Sequence<JS::Value>& /* unused */,
+ ErrorResult& aError)
+{
+ return SetTimeoutOrInterval(aCx, aHandler, aTimeout, false, aError);
+}
+
+static bool
+IsInterval(const Optional<int32_t>& aTimeout, int32_t& aResultTimeout)
+{
+ if (aTimeout.WasPassed()) {
+ aResultTimeout = aTimeout.Value();
+ return true;
+ }
+
+ // If no interval was specified, treat this like a timeout, to avoid setting
+ // an interval of 0 milliseconds.
+ aResultTimeout = 0;
+ return false;
+}
+
+int32_t
+nsGlobalWindow::SetInterval(JSContext* aCx, Function& aFunction,
+ const Optional<int32_t>& aTimeout,
+ const Sequence<JS::Value>& aArguments,
+ ErrorResult& aError)
+{
+ int32_t timeout;
+ bool isInterval = IsInterval(aTimeout, timeout);
+ return SetTimeoutOrInterval(aCx, aFunction, timeout, aArguments, isInterval,
+ aError);
+}
+
+int32_t
+nsGlobalWindow::SetInterval(JSContext* aCx, const nsAString& aHandler,
+ const Optional<int32_t>& aTimeout,
+ const Sequence<JS::Value>& /* unused */,
+ ErrorResult& aError)
+{
+ int32_t timeout;
+ bool isInterval = IsInterval(aTimeout, timeout);
+ return SetTimeoutOrInterval(aCx, aHandler, timeout, isInterval, aError);
+}
+
+nsresult
+nsGlobalWindow::SetTimeoutOrInterval(nsITimeoutHandler* aHandler,
+ int32_t interval, bool aIsInterval,
+ Timeout::Reason aReason, int32_t* aReturn)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ // If we don't have a document (we could have been unloaded since
+ // the call to setTimeout was made), do nothing.
+ if (!mDoc) {
+ return NS_OK;
+ }
+
+ // Disallow negative intervals. If aIsInterval also disallow 0,
+ // because we use that as a "don't repeat" flag.
+ interval = std::max(aIsInterval ? 1 : 0, interval);
+
+ // Make sure we don't proceed with an interval larger than our timer
+ // code can handle. (Note: we already forced |interval| to be non-negative,
+ // so the uint32_t cast (to avoid compiler warnings) is ok.)
+ uint32_t maxTimeoutMs = PR_IntervalToMilliseconds(DOM_MAX_TIMEOUT_VALUE);
+ if (static_cast<uint32_t>(interval) > maxTimeoutMs) {
+ interval = maxTimeoutMs;
+ }
+
+ RefPtr<Timeout> timeout = new Timeout();
+ timeout->mIsInterval = aIsInterval;
+ timeout->mInterval = interval;
+ timeout->mScriptHandler = aHandler;
+ timeout->mReason = aReason;
+
+ // Now clamp the actual interval we will use for the timer based on
+ uint32_t nestingLevel = sNestingLevel + 1;
+ uint32_t realInterval = interval;
+ if (aIsInterval || nestingLevel >= DOM_CLAMP_TIMEOUT_NESTING_LEVEL ||
+ mBackPressureDelayMS > 0) {
+ // Don't allow timeouts less than DOMMinTimeoutValue() from
+ // now...
+ realInterval = std::max(realInterval, uint32_t(DOMMinTimeoutValue()));
+ }
+
+ TimeDuration delta = TimeDuration::FromMilliseconds(realInterval);
+
+ if (IsFrozen()) {
+ // If we are frozen simply set timeout->mTimeRemaining to be the
+ // "time remaining" in the timeout (i.e., the interval itself). This
+ // will be used to create a new mWhen time when the window is thawed.
+ // The end effect is that time does not appear to pass for frozen windows.
+ timeout->mTimeRemaining = delta;
+ } else {
+ // Since we are not frozen we must set a precise mWhen target wakeup
+ // time. Even if we are suspended we want to use this target time so
+ // that it appears time passes while suspended.
+ timeout->mWhen = TimeStamp::Now() + delta;
+ }
+
+ // If we're not suspended, then set the timer.
+ if (!IsSuspended()) {
+ MOZ_ASSERT(!timeout->mWhen.IsNull());
+
+ nsresult rv;
+ timeout->mTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ RefPtr<Timeout> copy = timeout;
+
+ rv = timeout->InitTimer(GetThrottledEventQueue(), realInterval);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ // The timeout is now also held in the timer's closure.
+ Unused << copy.forget();
+ }
+
+ timeout->mWindow = this;
+
+ if (!aIsInterval) {
+ timeout->mNestingLevel = nestingLevel;
+ }
+
+ // No popups from timeouts by default
+ timeout->mPopupState = openAbused;
+
+ if (gRunningTimeoutDepth == 0 && gPopupControlState < openAbused) {
+ // This timeout is *not* set from another timeout and it's set
+ // while popups are enabled. Propagate the state to the timeout if
+ // its delay (interval) is equal to or less than what
+ // "dom.disable_open_click_delay" is set to (in ms).
+
+ int32_t delay =
+ Preferences::GetInt("dom.disable_open_click_delay");
+
+ // This is checking |interval|, not realInterval, on purpose,
+ // because our lower bound for |realInterval| could be pretty high
+ // in some cases.
+ if (interval <= delay) {
+ timeout->mPopupState = gPopupControlState;
+ }
+ }
+
+ InsertTimeoutIntoList(timeout);
+
+ timeout->mTimeoutId = GetTimeoutId(aReason);
+ *aReturn = timeout->mTimeoutId;
+
+ return NS_OK;
+}
+
+int32_t
+nsGlobalWindow::SetTimeoutOrInterval(JSContext *aCx, Function& aFunction,
+ int32_t aTimeout,
+ const Sequence<JS::Value>& aArguments,
+ bool aIsInterval, ErrorResult& aError)
+{
+ nsGlobalWindow* 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 = SetTimeoutOrInterval(handler, aTimeout, aIsInterval,
+ Timeout::Reason::eTimeoutOrInterval, &result);
+ return result;
+}
+
+int32_t
+nsGlobalWindow::SetTimeoutOrInterval(JSContext* aCx, const nsAString& aHandler,
+ int32_t aTimeout, bool aIsInterval,
+ ErrorResult& aError)
+{
+ nsGlobalWindow* 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 = SetTimeoutOrInterval(handler, aTimeout, aIsInterval,
+ Timeout::Reason::eTimeoutOrInterval, &result);
+ return result;
+}
+
+bool
+nsGlobalWindow::RunTimeoutHandler(Timeout* aTimeout,
+ nsIScriptContext* aScx)
+{
+ // Hold on to the timeout in case mExpr or mFunObj releases its
+ // doc.
+ RefPtr<Timeout> timeout = aTimeout;
+ Timeout* last_running_timeout = mRunningTimeout;
+ mRunningTimeout = 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 = openAbused;
+
+ ++gRunningTimeoutDepth;
+ ++mTimeoutFiringDepth;
+
+ bool trackNestingLevel = !timeout->mIsInterval;
+ uint32_t nestingLevel;
+ if (trackNestingLevel) {
+ nestingLevel = sNestingLevel;
+ sNestingLevel = 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 nsAString& script = handler->GetHandlerText();
+
+ 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).setVersion(JSVERSION_DEFAULT);
+ JS::Rooted<JSObject*> global(aes.cx(), FastGetGlobalJSObject());
+ nsresult rv =
+ nsJSUtils::EvaluateString(aes.cx(), script, global, options);
+ 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.
+
+ // Since we might be processing more timeouts, go ahead and flush the promise
+ // queue now before we do that. We need to do that while we're still in our
+ // "running JS is safe" state (e.g. mRunningTimeout is set, timeout->mRunning
+ // is false).
+ Promise::PerformMicroTaskCheckpoint();
+
+ if (trackNestingLevel) {
+ sNestingLevel = nestingLevel;
+ }
+
+ --mTimeoutFiringDepth;
+ --gRunningTimeoutDepth;
+
+ mRunningTimeout = last_running_timeout;
+ timeout->mRunning = false;
+
+ return timeout->mCleared;
+}
+
+bool
+nsGlobalWindow::RescheduleTimeout(Timeout* aTimeout, const TimeStamp& now,
+ bool aRunningPendingTimeouts)
+{
+ if (!aTimeout->mIsInterval) {
+ if (aTimeout->mTimer) {
+ // The timeout still has an OS timer, and it's not an interval,
+ // that means that the OS timer could still fire; cancel the OS
+ // timer and release its reference to the timeout.
+ aTimeout->mTimer->Cancel();
+ aTimeout->mTimer = nullptr;
+ aTimeout->Release();
+ }
+ return false;
+ }
+
+ // Compute time to next timeout for interval timer.
+ // Make sure nextInterval is at least DOMMinTimeoutValue().
+ TimeDuration nextInterval =
+ TimeDuration::FromMilliseconds(std::max(aTimeout->mInterval,
+ uint32_t(DOMMinTimeoutValue())));
+
+ // If we're running pending timeouts, set the next interval to be
+ // relative to "now", and not to when the timeout that was pending
+ // should have fired.
+ TimeStamp firingTime;
+ if (aRunningPendingTimeouts) {
+ firingTime = now + nextInterval;
+ } else {
+ firingTime = aTimeout->mWhen + nextInterval;
+ }
+
+ TimeStamp currentNow = TimeStamp::Now();
+ TimeDuration delay = firingTime - currentNow;
+
+ // And make sure delay is nonnegative; that might happen if the timer
+ // thread is firing our timers somewhat early or if they're taking a long
+ // time to run the callback.
+ if (delay < TimeDuration(0)) {
+ delay = TimeDuration(0);
+ }
+
+ if (!aTimeout->mTimer) {
+ if (IsFrozen()) {
+ aTimeout->mTimeRemaining = delay;
+ } else if (IsSuspended()) {
+ aTimeout->mWhen = currentNow + delay;
+ } else {
+ MOZ_ASSERT_UNREACHABLE("Window should be frozen or suspended.");
+ }
+ return true;
+ }
+
+ aTimeout->mWhen = currentNow + delay;
+
+ // Reschedule the OS timer. Don't bother returning any error codes if
+ // this fails since the callers of this method don't care about them.
+ nsresult rv = aTimeout->InitTimer(GetThrottledEventQueue(),
+ delay.ToMilliseconds());
+
+ if (NS_FAILED(rv)) {
+ NS_ERROR("Error initializing timer for DOM timeout!");
+
+ // We failed to initialize the new OS timer, this timer does
+ // us no good here so we just cancel it (just in case) and
+ // null out the pointer to the OS timer, this will release the
+ // OS timer. As we continue executing the code below we'll end
+ // up deleting the timeout since it's not an interval timeout
+ // any more (since timeout->mTimer == nullptr).
+ aTimeout->mTimer->Cancel();
+ aTimeout->mTimer = nullptr;
+
+ // Now that the OS timer no longer has a reference to the
+ // timeout we need to drop that reference.
+ aTimeout->Release();
+
+ return false;
+ }
+
+ return true;
+}
+
+void
+nsGlobalWindow::RunTimeout(Timeout* aTimeout)
+{
+ if (IsSuspended()) {
+ return;
+ }
+
+ NS_ASSERTION(IsInnerWindow(), "Timeout running on outer window!");
+ NS_ASSERTION(!IsFrozen(), "Timeout running on a window in the bfcache!");
+
+ Timeout* nextTimeout;
+ Timeout* last_expired_timeout;
+ Timeout* last_insertion_point;
+ uint32_t firingDepth = mTimeoutFiringDepth + 1;
+
+ // Make sure that the window and the script context don't go away as
+ // a result of running timeouts
+ nsCOMPtr<nsIScriptGlobalObject> windowKungFuDeathGrip(this);
+
+ // A native timer has gone off. See which of our timeouts need
+ // servicing
+ TimeStamp now = TimeStamp::Now();
+ TimeStamp deadline;
+
+ if (aTimeout && aTimeout->mWhen > now) {
+ // The OS timer fired early (which can happen due to the timers
+ // having lower precision than TimeStamp does). Set |deadline| to
+ // be the time when the OS timer *should* have fired so that any
+ // timers that *should* have fired before aTimeout *will* be fired
+ // now.
+
+ deadline = aTimeout->mWhen;
+ } else {
+ deadline = now;
+ }
+
+ uint32_t numTimersToRun = 0;
+ bool targetTimerSeen = false;
+
+
+ // The timeout list is kept in deadline order. Discover the latest timeout
+ // whose deadline has expired. On some platforms, native timeout events fire
+ // "early", but we handled that above by setting deadline to aTimeout->mWhen
+ // if the timer fired early. So we can stop walking if we get to timeouts
+ // whose mWhen is greater than deadline, since once that happens we know
+ // nothing past that point is expired.
+ last_expired_timeout = nullptr;
+ for (Timeout* timeout = mTimeouts.getFirst();
+ timeout && timeout->mWhen <= deadline;
+ timeout = timeout->getNext()) {
+ if (timeout->mFiringDepth == 0) {
+ // Mark any timeouts that are on the list to be fired with the
+ // firing depth so that we can reentrantly run timeouts
+ timeout->mFiringDepth = firingDepth;
+ last_expired_timeout = timeout;
+
+ // Note that we have seen our target timer. This means we can now
+ // stop processing timers once we hit our threshold below.
+ if (timeout == aTimeout) {
+ targetTimerSeen = true;
+ }
+
+ // Run only a limited number of timers based on the configured
+ // maximum. Note, we must always run our target timer however.
+ // Further timers that are ready will get picked up by their own
+ // nsITimer runnables when they execute.
+ //
+ // For chrome windows, however, we do coalesce all timers and
+ // do not yield the main thread. This is partly because we
+ // trust chrome windows not to misbehave and partly because a
+ // number of browser chrome tests have races that depend on this
+ // coalescing.
+ if (targetTimerSeen &&
+ numTimersToRun >= gTargetMaxConsecutiveCallbacks &&
+ !IsChromeWindow()) {
+ break;
+ }
+
+ numTimersToRun += 1;
+ }
+ }
+
+ // Maybe the timeout that the event was fired for has been deleted
+ // and there are no others timeouts with deadlines that make them
+ // eligible for execution yet. Go away.
+ if (!last_expired_timeout) {
+ return;
+ }
+
+ // Record telemetry information about timers set recently.
+ TimeDuration recordingInterval = TimeDuration::FromMilliseconds(STATISTICS_INTERVAL);
+ if (gLastRecordedRecentTimeouts.IsNull() ||
+ now - gLastRecordedRecentTimeouts > recordingInterval) {
+ gLastRecordedRecentTimeouts = now;
+ }
+
+ // Insert a dummy timeout into the list of timeouts between the
+ // portion of the list that we are about to process now and those
+ // timeouts that will be processed in a future call to
+ // win_run_timeout(). This dummy timeout serves as the head of the
+ // list for any timeouts inserted as a result of running a timeout.
+ RefPtr<Timeout> dummy_timeout = new Timeout();
+ dummy_timeout->mFiringDepth = firingDepth;
+ dummy_timeout->mWhen = now;
+ last_expired_timeout->setNext(dummy_timeout);
+ RefPtr<Timeout> timeoutExtraRef(dummy_timeout);
+
+ last_insertion_point = mTimeoutInsertionPoint;
+ // If we ever start setting mTimeoutInsertionPoint to a non-dummy timeout,
+ // the logic in ResetTimersForThrottleReduction will need to change.
+ mTimeoutInsertionPoint = dummy_timeout;
+
+ for (Timeout* timeout = mTimeouts.getFirst();
+ timeout != dummy_timeout && !IsFrozen();
+ timeout = nextTimeout) {
+ nextTimeout = timeout->getNext();
+
+ if (timeout->mFiringDepth != firingDepth) {
+ // We skip the timeout since it's on the list to run at another
+ // depth.
+
+ continue;
+ }
+
+ if (IsSuspended()) {
+ // Some timer did suspend us. Make sure the
+ // rest of the timers get executed later.
+ timeout->mFiringDepth = 0;
+ continue;
+ }
+
+ // The timeout is on the list to run at this depth, go ahead and
+ // process it.
+
+ // Get the script context (a strong ref to prevent it going away)
+ // for this timeout and ensure the script language is enabled.
+ nsCOMPtr<nsIScriptContext> scx = GetContextInternal();
+
+ if (!scx) {
+ // No context means this window was closed or never properly
+ // initialized for this language.
+ continue;
+ }
+
+ // This timeout is good to run
+ bool timeout_was_cleared = RunTimeoutHandler(timeout, scx);
+
+ if (timeout_was_cleared) {
+ // The running timeout's window was cleared, this means that
+ // ClearAllTimeouts() was called from a *nested* call, possibly
+ // through a timeout that fired while a modal (to this window)
+ // dialog was open or through other non-obvious paths.
+ MOZ_ASSERT(dummy_timeout->HasRefCntOne(), "dummy_timeout may leak");
+ Unused << timeoutExtraRef.forget().take();
+
+ mTimeoutInsertionPoint = last_insertion_point;
+
+ return;
+ }
+
+ // If we have a regular interval timer, we re-schedule the
+ // timeout, accounting for clock drift.
+ bool needsReinsertion = RescheduleTimeout(timeout, now, !aTimeout);
+
+ // Running a timeout can cause another timeout to be deleted, so
+ // we need to reset the pointer to the following timeout.
+ nextTimeout = timeout->getNext();
+
+ timeout->remove();
+
+ if (needsReinsertion) {
+ // Insert interval timeout onto list sorted in deadline order.
+ // AddRefs timeout.
+ InsertTimeoutIntoList(timeout);
+ }
+
+ // Release the timeout struct since it's possibly out of the list
+ timeout->Release();
+ }
+
+ // Take the dummy timeout off the head of the list
+ dummy_timeout->remove();
+ timeoutExtraRef = nullptr;
+ MOZ_ASSERT(dummy_timeout->HasRefCntOne(), "dummy_timeout may leak");
+
+ mTimeoutInsertionPoint = last_insertion_point;
+
+ MaybeApplyBackPressure();
+}
+
+void
+nsGlobalWindow::ClearTimeoutOrInterval(int32_t aTimerId, Timeout::Reason aReason)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ uint32_t timerId = (uint32_t)aTimerId;
+ Timeout* timeout;
+
+ for (timeout = mTimeouts.getFirst(); timeout; timeout = timeout->getNext()) {
+ if (timeout->mTimeoutId == timerId && timeout->mReason == aReason) {
+ if (timeout->mRunning) {
+ /* We're running from inside the timeout. Mark this
+ timeout for deferred deletion by the code in
+ RunTimeout() */
+ timeout->mIsInterval = false;
+ }
+ else {
+ /* Delete the timeout from the pending timeout list */
+ timeout->remove();
+
+ if (timeout->mTimer) {
+ timeout->mTimer->Cancel();
+ timeout->mTimer = nullptr;
+ timeout->Release();
+ }
+ timeout->Release();
+ }
+ break;
+ }
+ }
+}
+
+nsresult nsGlobalWindow::ResetTimersForThrottleReduction(int32_t aPreviousThrottleDelayMS)
+{
+ FORWARD_TO_INNER(ResetTimersForThrottleReduction, (aPreviousThrottleDelayMS),
+ NS_ERROR_NOT_INITIALIZED);
+ MOZ_ASSERT(aPreviousThrottleDelayMS > 0);
+
+ if (IsFrozen() || IsSuspended()) {
+ return NS_OK;
+ }
+
+ TimeStamp now = TimeStamp::Now();
+
+ // If mTimeoutInsertionPoint is non-null, we're in the middle of firing
+ // timers and the timers we're planning to fire all come before
+ // mTimeoutInsertionPoint; mTimeoutInsertionPoint itself is a dummy timeout
+ // with an mWhen that may be semi-bogus. In that case, we don't need to do
+ // anything with mTimeoutInsertionPoint or anything before it, so should
+ // start at the timer after mTimeoutInsertionPoint, if there is one.
+ // Otherwise, start at the beginning of the list.
+ for (Timeout* timeout = mTimeoutInsertionPoint ?
+ mTimeoutInsertionPoint->getNext() : mTimeouts.getFirst();
+ timeout; ) {
+ // It's important that this check be <= so that we guarantee that
+ // taking std::max with |now| won't make a quantity equal to
+ // timeout->mWhen below.
+ if (timeout->mWhen <= now) {
+ timeout = timeout->getNext();
+ continue;
+ }
+
+ if (timeout->mWhen - now >
+ TimeDuration::FromMilliseconds(aPreviousThrottleDelayMS)) {
+ // No need to loop further. Timeouts are sorted in mWhen order
+ // and the ones after this point were all set up for at least
+ // gMinBackgroundTimeoutValue ms and hence were not clamped.
+ break;
+ }
+
+ // We reduced our throttled delay. Re-init the timer appropriately.
+ // Compute the interval the timer should have had if it had not been set in a
+ // background window
+ TimeDuration interval =
+ TimeDuration::FromMilliseconds(std::max(timeout->mInterval,
+ uint32_t(DOMMinTimeoutValue())));
+ uint32_t oldIntervalMillisecs = 0;
+ timeout->mTimer->GetDelay(&oldIntervalMillisecs);
+ TimeDuration oldInterval = TimeDuration::FromMilliseconds(oldIntervalMillisecs);
+ if (oldInterval > interval) {
+ // unclamp
+ TimeStamp firingTime =
+ std::max(timeout->mWhen - oldInterval + interval, now);
+
+ NS_ASSERTION(firingTime < timeout->mWhen,
+ "Our firing time should strictly decrease!");
+
+ TimeDuration delay = firingTime - now;
+ timeout->mWhen = firingTime;
+
+ // Since we reset mWhen we need to move |timeout| to the right
+ // place in the list so that it remains sorted by mWhen.
+
+ // Get the pointer to the next timeout now, before we move the
+ // current timeout in the list.
+ Timeout* nextTimeout = timeout->getNext();
+
+ // Since we are only reducing intervals in this method we can
+ // make an optimization here. If the reduction does not cause us
+ // to fall before our previous timeout then we do not have to
+ // remove and re-insert the current timeout. This is important
+ // because re-insertion makes this algorithm O(n^2). Since we
+ // will typically be shifting a lot of timers at once this
+ // optimization saves us a lot of work.
+ Timeout* prevTimeout = timeout->getPrevious();
+ if (prevTimeout && prevTimeout->mWhen > timeout->mWhen) {
+ // It is safe to remove and re-insert because mWhen is now
+ // strictly smaller than it used to be, so we know we'll insert
+ // |timeout| before nextTimeout.
+ NS_ASSERTION(!nextTimeout ||
+ timeout->mWhen < nextTimeout->mWhen, "How did that happen?");
+ timeout->remove();
+ // InsertTimeoutIntoList will addref |timeout| and reset
+ // mFiringDepth. Make sure to undo that after calling it.
+ uint32_t firingDepth = timeout->mFiringDepth;
+ InsertTimeoutIntoList(timeout);
+ timeout->mFiringDepth = firingDepth;
+ timeout->Release();
+ }
+
+ nsresult rv = timeout->InitTimer(GetThrottledEventQueue(),
+ delay.ToMilliseconds());
+
+ if (NS_FAILED(rv)) {
+ NS_WARNING("Error resetting non background timer for DOM timeout!");
+ return rv;
+ }
+
+ timeout = nextTimeout;
+ } else {
+ timeout = timeout->getNext();
+ }
+ }
+
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::ClearAllTimeouts()
+{
+ Timeout* timeout;
+ Timeout* nextTimeout;
+
+ for (timeout = mTimeouts.getFirst(); timeout; timeout = nextTimeout) {
+ /* If RunTimeout() is higher up on the stack for this
+ window, e.g. as a result of document.write from a timeout,
+ then we need to reset the list insertion point for
+ newly-created timeouts in case the user adds a timeout,
+ before we pop the stack back to RunTimeout. */
+ if (mRunningTimeout == timeout)
+ mTimeoutInsertionPoint = nullptr;
+
+ nextTimeout = timeout->getNext();
+
+ if (timeout->mTimer) {
+ timeout->mTimer->Cancel();
+ timeout->mTimer = nullptr;
+
+ // Drop the count since the timer isn't going to hold on
+ // anymore.
+ timeout->Release();
+ }
+
+ // Set timeout->mCleared to true to indicate that the timeout was
+ // cleared and taken out of the list of timeouts
+ timeout->mCleared = true;
+
+ // Drop the count since we're removing it from the list.
+ timeout->Release();
+ }
+
+ // Clear out our list
+ mTimeouts.clear();
+}
+
+void
+nsGlobalWindow::InsertTimeoutIntoList(Timeout* aTimeout)
+{
+ NS_ASSERTION(IsInnerWindow(),
+ "InsertTimeoutIntoList() called on outer window!");
+
+ // Start at mLastTimeout and go backwards. Don't go further than
+ // mTimeoutInsertionPoint, though. This optimizes for the common case of
+ // insertion at the end.
+ Timeout* prevSibling;
+ for (prevSibling = mTimeouts.getLast();
+ prevSibling && prevSibling != mTimeoutInsertionPoint &&
+ // This condition needs to match the one in SetTimeoutOrInterval that
+ // determines whether to set mWhen or mTimeRemaining.
+ (IsFrozen() ?
+ prevSibling->mTimeRemaining > aTimeout->mTimeRemaining :
+ prevSibling->mWhen > aTimeout->mWhen);
+ prevSibling = prevSibling->getPrevious()) {
+ /* Do nothing; just searching */
+ }
+
+ // Now link in aTimeout after prevSibling.
+ if (prevSibling) {
+ prevSibling->setNext(aTimeout);
+ } else {
+ mTimeouts.insertFront(aTimeout);
+ }
+
+ aTimeout->mFiringDepth = 0;
+
+ // Increment the timeout's reference count since it's now held on to
+ // by the list
+ aTimeout->AddRef();
+}
+
+//*****************************************************************************
+// nsGlobalWindow: Helper Functions
+//*****************************************************************************
+
+already_AddRefed<nsIDocShellTreeOwner>
+nsGlobalWindow::GetTreeOwner()
+{
+ FORWARD_TO_OUTER(GetTreeOwner, (), nullptr);
+
+ // If there's no docShellAsItem, this window must have been closed,
+ // in that case there is no tree owner.
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
+ mDocShell->GetTreeOwner(getter_AddRefs(treeOwner));
+ return treeOwner.forget();
+}
+
+already_AddRefed<nsIBaseWindow>
+nsGlobalWindow::GetTreeOwnerWindow()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
+
+ // If there's no mDocShell, this window must have been closed,
+ // in that case there is no tree owner.
+
+ if (mDocShell) {
+ mDocShell->GetTreeOwner(getter_AddRefs(treeOwner));
+ }
+
+ nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(treeOwner);
+ return baseWindow.forget();
+}
+
+already_AddRefed<nsIWebBrowserChrome>
+nsGlobalWindow::GetWebBrowserChrome()
+{
+ nsCOMPtr<nsIDocShellTreeOwner> treeOwner = GetTreeOwner();
+
+ nsCOMPtr<nsIWebBrowserChrome> browserChrome = do_GetInterface(treeOwner);
+ return browserChrome.forget();
+}
+
+nsIScrollableFrame *
+nsGlobalWindow::GetScrollFrame()
+{
+ FORWARD_TO_OUTER(GetScrollFrame, (), nullptr);
+
+ if (!mDocShell) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+ if (presShell) {
+ return presShell->GetRootScrollFrameAsScrollable();
+ }
+ return nullptr;
+}
+
+nsresult
+nsGlobalWindow::SecurityCheckURL(const char *aURL)
+{
+ nsCOMPtr<nsPIDOMWindowInner> sourceWindow = do_QueryInterface(GetEntryGlobal());
+ if (!sourceWindow) {
+ sourceWindow = AsOuter()->GetCurrentInnerWindow();
+ }
+ AutoJSContext cx;
+ nsGlobalWindow* sourceWin = nsGlobalWindow::Cast(sourceWindow);
+ JSAutoCompartment ac(cx, sourceWin->GetGlobalJSObject());
+
+ // Resolve the baseURI, which could be relative to the calling window.
+ //
+ // Note the algorithm to get the base URI should match the one
+ // used to actually kick off the load in nsWindowWatcher.cpp.
+ nsCOMPtr<nsIDocument> doc = sourceWindow->GetDoc();
+ nsIURI* baseURI = nullptr;
+ nsAutoCString charset(NS_LITERAL_CSTRING("UTF-8")); // default to utf-8
+ if (doc) {
+ baseURI = doc->GetDocBaseURI();
+ charset = doc->GetDocumentCharacterSet();
+ }
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = NS_NewURI(getter_AddRefs(uri), nsDependentCString(aURL),
+ charset.get(), baseURI);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ return rv;
+ }
+
+ if (NS_FAILED(nsContentUtils::GetSecurityManager()->
+ CheckLoadURIFromScript(cx, uri))) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+bool
+nsGlobalWindow::IsPrivateBrowsing()
+{
+ nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(GetDocShell());
+ return loadContext && loadContext->UsePrivateBrowsing();
+}
+
+void
+nsGlobalWindow::FlushPendingNotifications(mozFlushType aType)
+{
+ if (mDoc) {
+ mDoc->FlushPendingNotifications(aType);
+ }
+}
+
+void
+nsGlobalWindow::EnsureSizeUpToDate()
+{
+ MOZ_ASSERT(IsOuterWindow());
+
+ // If we're a subframe, make sure our size is up to date. It's OK that this
+ // crosses the content/chrome boundary, since chrome can have pending reflows
+ // too.
+ nsGlobalWindow *parent = nsGlobalWindow::Cast(GetPrivateParent());
+ if (parent) {
+ parent->FlushPendingNotifications(Flush_Layout);
+ }
+}
+
+already_AddRefed<nsISupports>
+nsGlobalWindow::SaveWindowState()
+{
+ NS_PRECONDITION(IsOuterWindow(), "Can't save the inner window's state");
+
+ if (!mContext || !GetWrapperPreserveColor()) {
+ // The window may be getting torn down; don't bother saving state.
+ return nullptr;
+ }
+
+ nsGlobalWindow *inner = GetCurrentInnerWindowInternal();
+ NS_ASSERTION(inner, "No inner window to save");
+
+ // Don't do anything else to this inner window! After this point, all
+ // calls to SetTimeoutOrInterval will create entries in the timeout
+ // list that will only run after this window has come out of the bfcache.
+ // Also, while we're frozen, we won't dispatch online/offline events
+ // to the page.
+ inner->Freeze();
+
+ nsCOMPtr<nsISupports> state = new WindowStateHolder(inner);
+
+#ifdef DEBUG_PAGE_CACHE
+ printf("saving window state, state = %p\n", (void*)state);
+#endif
+
+ return state.forget();
+}
+
+nsresult
+nsGlobalWindow::RestoreWindowState(nsISupports *aState)
+{
+ NS_ASSERTION(IsOuterWindow(), "Cannot restore an inner window");
+
+ if (!mContext || !GetWrapperPreserveColor()) {
+ // The window may be getting torn down; don't bother restoring state.
+ return NS_OK;
+ }
+
+ nsCOMPtr<WindowStateHolder> holder = do_QueryInterface(aState);
+ NS_ENSURE_TRUE(holder, NS_ERROR_FAILURE);
+
+#ifdef DEBUG_PAGE_CACHE
+ printf("restoring window state, state = %p\n", (void*)holder);
+#endif
+
+ // And we're ready to go!
+ nsGlobalWindow *inner = GetCurrentInnerWindowInternal();
+
+ // if a link is focused, refocus with the FLAG_SHOWRING flag set. This makes
+ // it easy to tell which link was last clicked when going back a page.
+ nsIContent* focusedNode = inner->GetFocusedNode();
+ if (IsLink(focusedNode)) {
+ nsIFocusManager* fm = nsFocusManager::GetFocusManager();
+ if (fm) {
+ nsCOMPtr<nsIDOMElement> focusedElement(do_QueryInterface(focusedNode));
+ fm->SetFocus(focusedElement, nsIFocusManager::FLAG_NOSCROLL |
+ nsIFocusManager::FLAG_SHOWRING);
+ }
+ }
+
+ inner->Thaw();
+
+ holder->DidRestoreWindow();
+
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::EnableDeviceSensor(uint32_t aType)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ 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
+nsGlobalWindow::DisableDeviceSensor(uint32_t aType)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ 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) || defined(MOZ_WIDGET_GONK)
+void
+nsGlobalWindow::EnableOrientationChangeListener()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ if (!nsContentUtils::ShouldResistFingerprinting(mDocShell) &&
+ !mOrientationChangeObserver) {
+ mOrientationChangeObserver =
+ new WindowOrientationObserver(this);
+ }
+}
+
+void
+nsGlobalWindow::DisableOrientationChangeListener()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ mOrientationChangeObserver = nullptr;
+}
+#endif
+
+void
+nsGlobalWindow::SetHasGamepadEventListener(bool aHasGamepad/* = true*/)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ mHasGamepad = aHasGamepad;
+ if (aHasGamepad) {
+ EnableGamepadUpdates();
+ }
+}
+
+
+void
+nsGlobalWindow::EventListenerAdded(nsIAtom* aType)
+{
+ if (aType == nsGkAtoms::onvrdisplayconnect ||
+ aType == nsGkAtoms::onvrdisplaydisconnect ||
+ aType == nsGkAtoms::onvrdisplaypresentchange) {
+ NotifyVREventListenerAdded();
+ }
+}
+
+void
+nsGlobalWindow::NotifyVREventListenerAdded()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ mHasVREvents = true;
+ EnableVRUpdates();
+}
+
+void
+nsGlobalWindow::EnableTimeChangeNotifications()
+{
+ mozilla::time::AddWindowListener(AsInner());
+}
+
+void
+nsGlobalWindow::DisableTimeChangeNotifications()
+{
+ mozilla::time::RemoveWindowListener(AsInner());
+}
+
+void
+nsGlobalWindow::AddSizeOfIncludingThis(nsWindowSizes* aWindowSizes) const
+{
+ aWindowSizes->mDOMOtherSize += aWindowSizes->mMallocSizeOf(this);
+
+ if (IsInnerWindow()) {
+ EventListenerManager* elm = GetExistingListenerManager();
+ if (elm) {
+ aWindowSizes->mDOMOtherSize +=
+ elm->SizeOfIncludingThis(aWindowSizes->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() == AsInner()) {
+ mDoc->DocAddSizeOfIncludingThis(aWindowSizes);
+ }
+ }
+ }
+
+ if (mNavigator) {
+ aWindowSizes->mDOMOtherSize +=
+ mNavigator->SizeOfIncludingThis(aWindowSizes->mMallocSizeOf);
+ }
+
+ aWindowSizes->mDOMEventTargetsSize +=
+ mEventTargetObjects.ShallowSizeOfExcludingThis(aWindowSizes->mMallocSizeOf);
+
+ for (auto iter = mEventTargetObjects.ConstIter(); !iter.Done(); iter.Next()) {
+ DOMEventTargetHelper* et = iter.Get()->GetKey();
+ if (nsCOMPtr<nsISizeOfEventTarget> iSizeOf = do_QueryObject(et)) {
+ aWindowSizes->mDOMEventTargetsSize +=
+ iSizeOf->SizeOfEventTargetIncludingThis(aWindowSizes->mMallocSizeOf);
+ }
+ if (EventListenerManager* elm = et->GetExistingListenerManager()) {
+ aWindowSizes->mDOMEventListenersCount += elm->ListenerCount();
+ }
+ ++aWindowSizes->mDOMEventTargetsCount;
+ }
+}
+
+
+#ifdef MOZ_GAMEPAD
+void
+nsGlobalWindow::AddGamepad(uint32_t aIndex, Gamepad* aGamepad)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ // 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
+nsGlobalWindow::RemoveGamepad(uint32_t aIndex)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ 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
+nsGlobalWindow::GetGamepads(nsTArray<RefPtr<Gamepad> >& aGamepads)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ aGamepads.Clear();
+ // 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>
+nsGlobalWindow::GetGamepad(uint32_t aIndex)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ RefPtr<Gamepad> gamepad;
+
+ if (mGamepads.Get(aIndex, getter_AddRefs(gamepad))) {
+ return gamepad.forget();
+ }
+
+ return nullptr;
+}
+
+void
+nsGlobalWindow::SetHasSeenGamepadInput(bool aHasSeen)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ mHasSeenGamepadInput = aHasSeen;
+}
+
+bool
+nsGlobalWindow::HasSeenGamepadInput()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ return mHasSeenGamepadInput;
+}
+
+void
+nsGlobalWindow::SyncGamepadState()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ if (mHasSeenGamepadInput) {
+ RefPtr<GamepadManager> gamepadManager(GamepadManager::GetService());
+ for (auto iter = mGamepads.Iter(); !iter.Done(); iter.Next()) {
+ gamepadManager->SyncGamepadState(iter.Key(), iter.UserData());
+ }
+ }
+}
+#endif // MOZ_GAMEPAD
+
+bool
+nsGlobalWindow::UpdateVRDisplays(nsTArray<RefPtr<mozilla::dom::VRDisplay>>& aDevices)
+{
+ FORWARD_TO_INNER(UpdateVRDisplays, (aDevices), false);
+
+ VRDisplay::UpdateVRDisplays(mVRDisplays, AsInner());
+ aDevices = mVRDisplays;
+ return true;
+}
+
+void
+nsGlobalWindow::NotifyActiveVRDisplaysChanged()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ if (mNavigator) {
+ mNavigator->NotifyActiveVRDisplaysChanged();
+ }
+}
+
+
+// nsGlobalChromeWindow implementation
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(nsGlobalChromeWindow)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsGlobalChromeWindow,
+ nsGlobalWindow)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBrowserDOMWindow)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessageManager)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGroupMessageManagers)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOpenerForInitialContentBrowser)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsGlobalChromeWindow,
+ nsGlobalWindow)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mBrowserDOMWindow)
+ if (tmp->mMessageManager) {
+ static_cast<nsFrameMessageManager*>(
+ tmp->mMessageManager.get())->Disconnect();
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessageManager)
+ }
+ tmp->DisconnectAndClearGroupMessageManagers();
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mGroupMessageManagers)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mOpenerForInitialContentBrowser)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+// QueryInterface implementation for nsGlobalChromeWindow
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsGlobalChromeWindow)
+ NS_INTERFACE_MAP_ENTRY(nsIDOMChromeWindow)
+NS_INTERFACE_MAP_END_INHERITING(nsGlobalWindow)
+
+NS_IMPL_ADDREF_INHERITED(nsGlobalChromeWindow, nsGlobalWindow)
+NS_IMPL_RELEASE_INHERITED(nsGlobalChromeWindow, nsGlobalWindow)
+
+/* static */ already_AddRefed<nsGlobalChromeWindow>
+nsGlobalChromeWindow::Create(nsGlobalWindow *aOuterWindow)
+{
+ RefPtr<nsGlobalChromeWindow> window = new nsGlobalChromeWindow(aOuterWindow);
+ window->InitWasOffline();
+ return window.forget();
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::GetWindowState(uint16_t* aWindowState)
+{
+ FORWARD_TO_INNER_CHROME(GetWindowState, (aWindowState), NS_ERROR_UNEXPECTED);
+
+ *aWindowState = WindowState();
+ return NS_OK;
+}
+
+uint16_t
+nsGlobalWindow::WindowState()
+{
+ MOZ_ASSERT(IsInnerWindow());
+ nsCOMPtr<nsIWidget> widget = GetMainWidget();
+
+ int32_t mode = widget ? widget->SizeMode() : 0;
+
+ switch (mode) {
+ case nsSizeMode_Minimized:
+ return nsIDOMChromeWindow::STATE_MINIMIZED;
+ case nsSizeMode_Maximized:
+ return nsIDOMChromeWindow::STATE_MAXIMIZED;
+ case nsSizeMode_Fullscreen:
+ return nsIDOMChromeWindow::STATE_FULLSCREEN;
+ case nsSizeMode_Normal:
+ return nsIDOMChromeWindow::STATE_NORMAL;
+ default:
+ NS_WARNING("Illegal window state for this chrome window");
+ break;
+ }
+
+ return nsIDOMChromeWindow::STATE_NORMAL;
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::Maximize()
+{
+ FORWARD_TO_INNER_CHROME(Maximize, (), NS_ERROR_UNEXPECTED);
+
+ nsGlobalWindow::Maximize();
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::Maximize()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIWidget> widget = GetMainWidget();
+
+ if (widget) {
+ widget->SetSizeMode(nsSizeMode_Maximized);
+ }
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::Minimize()
+{
+ FORWARD_TO_INNER_CHROME(Minimize, (), NS_ERROR_UNEXPECTED);
+
+ nsGlobalWindow::Minimize();
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::Minimize()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIWidget> widget = GetMainWidget();
+
+ if (widget) {
+ widget->SetSizeMode(nsSizeMode_Minimized);
+ }
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::Restore()
+{
+ FORWARD_TO_INNER_CHROME(Restore, (), NS_ERROR_UNEXPECTED);
+
+ nsGlobalWindow::Restore();
+ return NS_OK;
+}
+
+void
+nsGlobalWindow::Restore()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIWidget> widget = GetMainWidget();
+
+ if (widget) {
+ widget->SetSizeMode(nsSizeMode_Normal);
+ }
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::GetAttention()
+{
+ FORWARD_TO_INNER_CHROME(GetAttention, (), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ GetAttention(rv);
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::GetAttention(ErrorResult& aResult)
+{
+ MOZ_ASSERT(IsInnerWindow());
+ return GetAttentionWithCycleCount(-1, aResult);
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::GetAttentionWithCycleCount(int32_t aCycleCount)
+{
+ FORWARD_TO_INNER_CHROME(GetAttentionWithCycleCount, (aCycleCount), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ GetAttentionWithCycleCount(aCycleCount, rv);
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::GetAttentionWithCycleCount(int32_t aCycleCount,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIWidget> widget = GetMainWidget();
+
+ if (widget) {
+ aError = widget->GetAttention(aCycleCount);
+ }
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::BeginWindowMove(nsIDOMEvent *aMouseDownEvent, nsIDOMElement* aPanel)
+{
+ FORWARD_TO_INNER_CHROME(BeginWindowMove, (aMouseDownEvent, aPanel), NS_ERROR_UNEXPECTED);
+
+ NS_ENSURE_TRUE(aMouseDownEvent, NS_ERROR_FAILURE);
+ Event* mouseDownEvent = aMouseDownEvent->InternalDOMEvent();
+ NS_ENSURE_TRUE(mouseDownEvent, NS_ERROR_FAILURE);
+
+ nsCOMPtr<Element> panel = do_QueryInterface(aPanel);
+ NS_ENSURE_TRUE(panel || !aPanel, NS_ERROR_FAILURE);
+
+ ErrorResult rv;
+ BeginWindowMove(*mouseDownEvent, panel, rv);
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::BeginWindowMove(Event& aMouseDownEvent, Element* aPanel,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIWidget> widget;
+
+ // if a panel was supplied, use its widget instead.
+#ifdef MOZ_XUL
+ if (aPanel) {
+ nsIFrame* frame = aPanel->GetPrimaryFrame();
+ if (!frame || frame->GetType() != nsGkAtoms::menuPopupFrame) {
+ return;
+ }
+
+ widget = (static_cast<nsMenuPopupFrame*>(frame))->GetWidget();
+ }
+ else {
+#endif
+ widget = GetMainWidget();
+#ifdef MOZ_XUL
+ }
+#endif
+
+ if (!widget) {
+ return;
+ }
+
+ WidgetMouseEvent* mouseEvent =
+ aMouseDownEvent.WidgetEventPtr()->AsMouseEvent();
+ if (!mouseEvent || mouseEvent->mClass != eMouseEventClass) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ aError = widget->BeginMoveDrag(mouseEvent);
+}
+
+already_AddRefed<nsWindowRoot>
+nsGlobalWindow::GetWindowRootOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ nsCOMPtr<nsPIWindowRoot> root = GetTopWindowRoot();
+ return root.forget().downcast<nsWindowRoot>();
+}
+
+already_AddRefed<nsWindowRoot>
+nsGlobalWindow::GetWindowRoot(mozilla::ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetWindowRootOuter, (), aError, nullptr);
+}
+
+//Note: This call will lock the cursor, it will not change as it moves.
+//To unlock, the cursor must be set back to CURSOR_AUTO.
+NS_IMETHODIMP
+nsGlobalChromeWindow::SetCursor(const nsAString& aCursor)
+{
+ FORWARD_TO_INNER_CHROME(SetCursor, (aCursor), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ SetCursor(aCursor, rv);
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::SetCursorOuter(const nsAString& aCursor, ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ int32_t cursor;
+
+ if (aCursor.EqualsLiteral("auto"))
+ cursor = NS_STYLE_CURSOR_AUTO;
+ else {
+ nsCSSKeyword keyword = nsCSSKeywords::LookupKeyword(aCursor);
+ if (eCSSKeyword_UNKNOWN == keyword ||
+ !nsCSSProps::FindKeyword(keyword, nsCSSProps::kCursorKTable, cursor)) {
+ return;
+ }
+ }
+
+ RefPtr<nsPresContext> presContext;
+ if (mDocShell) {
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ }
+
+ if (presContext) {
+ // Need root widget.
+ nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
+ if (!presShell) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ nsViewManager* vm = presShell->GetViewManager();
+ if (!vm) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ nsView* rootView = vm->GetRootView();
+ if (!rootView) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ nsIWidget* widget = rootView->GetNearestWidget(nullptr);
+ if (!widget) {
+ aError.Throw(NS_ERROR_FAILURE);
+ return;
+ }
+
+ // Call esm and set cursor.
+ aError = presContext->EventStateManager()->SetCursor(cursor, nullptr,
+ false, 0.0f, 0.0f,
+ widget, true);
+ }
+}
+
+void
+nsGlobalWindow::SetCursor(const nsAString& aCursor, ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetCursorOuter, (aCursor, aError), aError, );
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::GetBrowserDOMWindow(nsIBrowserDOMWindow **aBrowserWindow)
+{
+ FORWARD_TO_INNER_CHROME(GetBrowserDOMWindow, (aBrowserWindow), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ NS_IF_ADDREF(*aBrowserWindow = GetBrowserDOMWindow(rv));
+ return rv.StealNSResult();
+}
+
+nsIBrowserDOMWindow*
+nsGlobalWindow::GetBrowserDOMWindowOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(IsChromeWindow());
+ return static_cast<nsGlobalChromeWindow*>(this)->mBrowserDOMWindow;
+}
+
+nsIBrowserDOMWindow*
+nsGlobalWindow::GetBrowserDOMWindow(ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetBrowserDOMWindowOuter, (), aError, nullptr);
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::SetBrowserDOMWindow(nsIBrowserDOMWindow *aBrowserWindow)
+{
+ FORWARD_TO_INNER_CHROME(SetBrowserDOMWindow, (aBrowserWindow), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ SetBrowserDOMWindow(aBrowserWindow, rv);
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::SetBrowserDOMWindowOuter(nsIBrowserDOMWindow* aBrowserWindow)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(IsChromeWindow());
+ static_cast<nsGlobalChromeWindow*>(this)->mBrowserDOMWindow = aBrowserWindow;
+}
+
+void
+nsGlobalWindow::SetBrowserDOMWindow(nsIBrowserDOMWindow* aBrowserWindow,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetBrowserDOMWindowOuter, (aBrowserWindow), aError, );
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::NotifyDefaultButtonLoaded(nsIDOMElement* aDefaultButton)
+{
+ FORWARD_TO_INNER_CHROME(NotifyDefaultButtonLoaded,
+ (aDefaultButton), NS_ERROR_UNEXPECTED);
+
+ nsCOMPtr<Element> defaultButton = do_QueryInterface(aDefaultButton);
+ NS_ENSURE_ARG(defaultButton);
+
+ ErrorResult rv;
+ NotifyDefaultButtonLoaded(*defaultButton, rv);
+ return rv.StealNSResult();
+}
+
+void
+nsGlobalWindow::NotifyDefaultButtonLoaded(Element& aDefaultButton,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+#ifdef MOZ_XUL
+ // Don't snap to a disabled button.
+ nsCOMPtr<nsIDOMXULControlElement> xulControl =
+ do_QueryInterface(&aDefaultButton);
+ 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::FromUnknownRect(frame->GetScreenRect());
+
+ // 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
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::GetMessageManager(nsIMessageBroadcaster** aManager)
+{
+ FORWARD_TO_INNER_CHROME(GetMessageManager, (aManager), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ NS_IF_ADDREF(*aManager = GetMessageManager(rv));
+ return rv.StealNSResult();
+}
+
+nsIMessageBroadcaster*
+nsGlobalWindow::GetMessageManager(ErrorResult& aError)
+{
+ MOZ_ASSERT(IsChromeWindow());
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+ nsGlobalChromeWindow* myself = static_cast<nsGlobalChromeWindow*>(this);
+ if (!myself->mMessageManager) {
+ nsCOMPtr<nsIMessageBroadcaster> globalMM =
+ do_GetService("@mozilla.org/globalmessagemanager;1");
+ myself->mMessageManager =
+ new nsFrameMessageManager(nullptr,
+ static_cast<nsFrameMessageManager*>(globalMM.get()),
+ MM_CHROME | MM_BROADCASTER);
+ }
+ return myself->mMessageManager;
+}
+
+NS_IMETHODIMP
+nsGlobalChromeWindow::GetGroupMessageManager(const nsAString& aGroup,
+ nsIMessageBroadcaster** aManager)
+{
+ FORWARD_TO_INNER_CHROME(GetGroupMessageManager, (aGroup, aManager), NS_ERROR_UNEXPECTED);
+
+ ErrorResult rv;
+ NS_IF_ADDREF(*aManager = GetGroupMessageManager(aGroup, rv));
+ return rv.StealNSResult();
+}
+
+nsIMessageBroadcaster*
+nsGlobalWindow::GetGroupMessageManager(const nsAString& aGroup,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsChromeWindow());
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ nsGlobalChromeWindow* myself = static_cast<nsGlobalChromeWindow*>(this);
+ nsCOMPtr<nsIMessageBroadcaster> messageManager =
+ myself->mGroupMessageManagers.Get(aGroup);
+
+ if (!messageManager) {
+ nsFrameMessageManager* parent =
+ static_cast<nsFrameMessageManager*>(GetMessageManager(aError));
+
+ messageManager = new nsFrameMessageManager(nullptr,
+ parent,
+ MM_CHROME | MM_BROADCASTER);
+ myself->mGroupMessageManagers.Put(aGroup, messageManager);
+ }
+
+ return messageManager;
+}
+
+nsresult
+nsGlobalChromeWindow::SetOpenerForInitialContentBrowser(mozIDOMWindowProxy* aOpenerWindow)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(!mOpenerForInitialContentBrowser);
+ mOpenerForInitialContentBrowser = aOpenerWindow;
+ return NS_OK;
+}
+
+nsresult
+nsGlobalChromeWindow::TakeOpenerForInitialContentBrowser(mozIDOMWindowProxy** aOpenerWindow)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ // Intentionally forget our own member
+ mOpenerForInitialContentBrowser.forget(aOpenerWindow);
+ return NS_OK;
+}
+
+// nsGlobalModalWindow implementation
+
+// QueryInterface implementation for nsGlobalModalWindow
+NS_INTERFACE_MAP_BEGIN(nsGlobalModalWindow)
+ NS_INTERFACE_MAP_ENTRY(nsIDOMModalContentWindow)
+NS_INTERFACE_MAP_END_INHERITING(nsGlobalWindow)
+
+NS_IMPL_ADDREF_INHERITED(nsGlobalModalWindow, nsGlobalWindow)
+NS_IMPL_RELEASE_INHERITED(nsGlobalModalWindow, nsGlobalWindow)
+
+
+void
+nsGlobalWindow::GetDialogArgumentsOuter(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aRetval,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(IsModalContentWindow(),
+ "This should only be called on modal windows!");
+
+ if (!mDialogArguments) {
+ MOZ_ASSERT(mIsClosed, "This window should be closed!");
+ aRetval.setUndefined();
+ return;
+ }
+
+ // This does an internal origin check, and returns undefined if the subject
+ // does not subsumes the origin of the arguments.
+ JS::Rooted<JSObject*> wrapper(aCx, GetWrapper());
+ JSAutoCompartment ac(aCx, wrapper);
+ mDialogArguments->Get(aCx, wrapper, &aSubjectPrincipal, aRetval, aError);
+}
+
+void
+nsGlobalWindow::GetDialogArguments(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aRetval,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetDialogArgumentsOuter,
+ (aCx, aRetval, aSubjectPrincipal, aError),
+ aError, );
+}
+
+/* static */ already_AddRefed<nsGlobalModalWindow>
+nsGlobalModalWindow::Create(nsGlobalWindow *aOuterWindow)
+{
+ RefPtr<nsGlobalModalWindow> window = new nsGlobalModalWindow(aOuterWindow);
+ window->InitWasOffline();
+ return window.forget();
+}
+
+NS_IMETHODIMP
+nsGlobalModalWindow::GetDialogArguments(nsIVariant **aArguments)
+{
+ FORWARD_TO_OUTER_MODAL_CONTENT_WINDOW(GetDialogArguments, (aArguments),
+ NS_ERROR_NOT_INITIALIZED);
+
+ // This does an internal origin check, and returns undefined if the subject
+ // does not subsumes the origin of the arguments.
+ return mDialogArguments->Get(nsContentUtils::SubjectPrincipal(), aArguments);
+}
+
+/* static */ already_AddRefed<nsGlobalWindow>
+nsGlobalWindow::Create(nsGlobalWindow *aOuterWindow)
+{
+ RefPtr<nsGlobalWindow> window = new nsGlobalWindow(aOuterWindow);
+ window->InitWasOffline();
+ return window.forget();
+}
+
+void
+nsGlobalWindow::InitWasOffline()
+{
+ mWasOffline = NS_IsOffline();
+}
+
+void
+nsGlobalWindow::GetReturnValueOuter(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aReturnValue,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(IsModalContentWindow(),
+ "This should only be called on modal windows!");
+
+ if (mReturnValue) {
+ JS::Rooted<JSObject*> wrapper(aCx, GetWrapper());
+ JSAutoCompartment ac(aCx, wrapper);
+ mReturnValue->Get(aCx, wrapper, &aSubjectPrincipal, aReturnValue, aError);
+ } else {
+ aReturnValue.setUndefined();
+ }
+}
+
+void
+nsGlobalWindow::GetReturnValue(JSContext* aCx,
+ JS::MutableHandle<JS::Value> aReturnValue,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(GetReturnValueOuter,
+ (aCx, aReturnValue, aSubjectPrincipal, aError),
+ aError, );
+}
+
+NS_IMETHODIMP
+nsGlobalModalWindow::GetReturnValue(nsIVariant **aRetVal)
+{
+ FORWARD_TO_OUTER_MODAL_CONTENT_WINDOW(GetReturnValue, (aRetVal), NS_OK);
+
+ if (!mReturnValue) {
+ nsCOMPtr<nsIVariant> variant = CreateVoidVariant();
+ variant.forget(aRetVal);
+ return NS_OK;
+ }
+ return mReturnValue->Get(nsContentUtils::SubjectPrincipal(), aRetVal);
+}
+
+void
+nsGlobalWindow::SetReturnValueOuter(JSContext* aCx,
+ JS::Handle<JS::Value> aReturnValue,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+ MOZ_ASSERT(IsModalContentWindow(),
+ "This should only be called on modal windows!");
+
+ nsCOMPtr<nsIVariant> returnValue;
+ aError =
+ nsContentUtils::XPConnect()->JSToVariant(aCx, aReturnValue,
+ getter_AddRefs(returnValue));
+ if (!aError.Failed()) {
+ mReturnValue = new DialogValueHolder(&aSubjectPrincipal, returnValue);
+ }
+}
+
+void
+nsGlobalWindow::SetReturnValue(JSContext* aCx,
+ JS::Handle<JS::Value> aReturnValue,
+ nsIPrincipal& aSubjectPrincipal,
+ ErrorResult& aError)
+{
+ FORWARD_TO_OUTER_OR_THROW(SetReturnValueOuter,
+ (aCx, aReturnValue, aSubjectPrincipal, aError),
+ aError, );
+}
+
+NS_IMETHODIMP
+nsGlobalModalWindow::SetReturnValue(nsIVariant *aRetVal)
+{
+ FORWARD_TO_OUTER_MODAL_CONTENT_WINDOW(SetReturnValue, (aRetVal), NS_OK);
+
+ mReturnValue = new DialogValueHolder(nsContentUtils::SubjectPrincipal(),
+ aRetVal);
+ return NS_OK;
+}
+
+/* static */
+bool
+nsGlobalWindow::IsModalContentWindow(JSContext* aCx, JSObject* aGlobal)
+{
+ return xpc::WindowOrNull(aGlobal)->IsModalContentWindow();
+}
+
+#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+int16_t
+nsGlobalWindow::Orientation(CallerType aCallerType) const
+{
+ return nsContentUtils::ResistFingerprinting(aCallerType) ?
+ 0 : WindowOrientationObserver::OrientationAngle();
+}
+#endif
+
+Console*
+nsGlobalWindow::GetConsole(ErrorResult& aRv)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mConsole) {
+ mConsole = Console::Create(AsInner(), aRv);
+ if (NS_WARN_IF(aRv.Failed())) {
+ return nullptr;
+ }
+ }
+
+ return mConsole;
+}
+
+bool
+nsGlobalWindow::IsSecureContext() const
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ return JS_GetIsSecureContext(js::GetObjectCompartment(GetWrapperPreserveColor()));
+}
+
+bool
+nsGlobalWindow::IsSecureContextIfOpenerIgnored() const
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ return mIsSecureContextIfOpenerIgnored;
+}
+
+already_AddRefed<External>
+nsGlobalWindow::GetExternal(ErrorResult& aRv)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+#ifdef HAVE_SIDEBAR
+ if (!mExternal) {
+ AutoJSContext cx;
+ JS::Rooted<JSObject*> jsImplObj(cx);
+ ConstructJSImplementation("@mozilla.org/sidebar;1", this, &jsImplObj, aRv);
+ if (aRv.Failed()) {
+ return nullptr;
+ }
+ mExternal = new External(jsImplObj, this);
+ }
+
+ RefPtr<External> external = static_cast<External*>(mExternal.get());
+ return external.forget();
+#else
+ aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+ return nullptr;
+#endif
+}
+
+void
+nsGlobalWindow::GetSidebar(OwningExternalOrWindowProxy& aResult,
+ ErrorResult& aRv)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+#ifdef HAVE_SIDEBAR
+ // First check for a named frame named "sidebar"
+ nsCOMPtr<nsPIDOMWindowOuter> 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
+nsGlobalWindow::ClearDocumentDependentSlots(JSContext* aCx)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ // If JSAPI OOMs here, there is basically nothing we can do to recover safely.
+ if (!WindowBinding::ClearCachedDocumentValue(aCx, this) ||
+ !WindowBinding::ClearCachedPerformanceValue(aCx, this)) {
+ MOZ_CRASH("Unhandlable OOM while clearing document dependent slots.");
+ }
+}
+
+/* static */
+JSObject*
+nsGlobalWindow::CreateNamedPropertiesObject(JSContext *aCx,
+ JS::Handle<JSObject*> aProto)
+{
+ return WindowNamedPropertiesHandler::Create(aCx, aProto);
+}
+
+bool
+nsGlobalWindow::GetIsPrerendered()
+{
+ nsIDocShell* docShell = GetDocShell();
+ return docShell && docShell->GetIsPrerendered();
+}
+
+#ifdef MOZ_B2G
+void
+nsGlobalWindow::EnableNetworkEvent(EventMessage aEventMessage)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIPermissionManager> permMgr =
+ services::GetPermissionManager();
+ if (!permMgr) {
+ NS_ERROR("No PermissionManager available!");
+ return;
+ }
+
+ uint32_t permission = nsIPermissionManager::DENY_ACTION;
+ permMgr->TestExactPermissionFromPrincipal(GetPrincipal(), "network-events",
+ &permission);
+
+ if (permission != nsIPermissionManager::ALLOW_ACTION) {
+ return;
+ }
+
+ nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
+ if (!os) {
+ NS_ERROR("ObserverService should be available!");
+ return;
+ }
+
+ switch (aEventMessage) {
+ case eNetworkUpload:
+ if (!mNetworkUploadObserverEnabled) {
+ mNetworkUploadObserverEnabled = true;
+ os->AddObserver(mObserver, NS_NETWORK_ACTIVITY_BLIP_UPLOAD_TOPIC, false);
+ }
+ break;
+ case eNetworkDownload:
+ if (!mNetworkDownloadObserverEnabled) {
+ mNetworkDownloadObserverEnabled = true;
+ os->AddObserver(mObserver, NS_NETWORK_ACTIVITY_BLIP_DOWNLOAD_TOPIC, false);
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+void
+nsGlobalWindow::DisableNetworkEvent(EventMessage aEventMessage)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
+ if (!os) {
+ return;
+ }
+
+ switch (aEventMessage) {
+ case eNetworkUpload:
+ if (mNetworkUploadObserverEnabled) {
+ mNetworkUploadObserverEnabled = false;
+ os->RemoveObserver(mObserver, NS_NETWORK_ACTIVITY_BLIP_UPLOAD_TOPIC);
+ }
+ break;
+ case eNetworkDownload:
+ if (mNetworkDownloadObserverEnabled) {
+ mNetworkDownloadObserverEnabled = false;
+ os->RemoveObserver(mObserver, NS_NETWORK_ACTIVITY_BLIP_DOWNLOAD_TOPIC);
+ }
+ break;
+ default:
+ break;
+ }
+}
+#endif // MOZ_B2G
+
+void
+nsGlobalWindow::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,
+ JS_STUBGETTER, JS_STUBSETTER)) {
+ aError.Throw(NS_ERROR_FAILURE);
+ }
+}
+
+void
+nsGlobalWindow::GetReplaceableWindowCoord(JSContext* aCx,
+ nsGlobalWindow::WindowCoordGetter aGetter,
+ JS::MutableHandle<JS::Value> aRetval,
+ CallerType aCallerType,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ int32_t coord = (this->*aGetter)(aCallerType, aError);
+ if (!aError.Failed() &&
+ !ToJSValue(aCx, coord, aRetval)) {
+ aError.Throw(NS_ERROR_FAILURE);
+ }
+}
+
+void
+nsGlobalWindow::SetReplaceableWindowCoord(JSContext* aCx,
+ nsGlobalWindow::WindowCoordSetter aSetter,
+ JS::Handle<JS::Value> aValue,
+ const char* aPropName,
+ ErrorResult& aError)
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ /*
+ * 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.
+ */
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ if (!outer || !outer->CanMoveResizeWindows(nsContentUtils::IsCallerChrome()) || 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;
+ }
+
+ (this->*aSetter)(value, aError);
+}
+
+void
+nsGlobalWindow::FireOnNewGlobalObject()
+{
+ MOZ_ASSERT(IsInnerWindow());
+
+ // AutoEntryScript required to invoke debugger hook, which is a
+ // Gecko-specific concept at present.
+ AutoEntryScript aes(this, "nsGlobalWindow report new global");
+ JS::Rooted<JSObject*> global(aes.cx(), GetWrapper());
+ JS_FireOnNewGlobalObject(aes.cx(), global);
+}
+
+#ifdef _WINDOWS_
+#error "Never include windows.h in this file!"
+#endif
+
+already_AddRefed<Promise>
+nsGlobalWindow::CreateImageBitmap(const ImageBitmapSource& aImage,
+ ErrorResult& aRv)
+{
+ if (aImage.IsArrayBuffer() || aImage.IsArrayBufferView()) {
+ aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+ return nullptr;
+ }
+
+ return ImageBitmap::Create(this, aImage, Nothing(), aRv);
+}
+
+already_AddRefed<Promise>
+nsGlobalWindow::CreateImageBitmap(const ImageBitmapSource& aImage,
+ int32_t aSx, int32_t aSy, int32_t aSw, int32_t aSh,
+ ErrorResult& aRv)
+{
+ if (aImage.IsArrayBuffer() || aImage.IsArrayBufferView()) {
+ aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+ return nullptr;
+ }
+
+ return ImageBitmap::Create(this, aImage, Some(gfx::IntRect(aSx, aSy, aSw, aSh)), aRv);
+}
+
+already_AddRefed<mozilla::dom::Promise>
+nsGlobalWindow::CreateImageBitmap(const ImageBitmapSource& aImage,
+ int32_t aOffset, int32_t aLength,
+ ImageBitmapFormat aFormat,
+ const Sequence<ChannelPixelLayout>& aLayout,
+ ErrorResult& aRv)
+{
+ if (!ImageBitmap::ExtensionsEnabled(nullptr, nullptr)) {
+ aRv.Throw(NS_ERROR_TYPE_ERR);
+ return nullptr;
+ }
+ if (aImage.IsArrayBuffer() || aImage.IsArrayBufferView()) {
+ return ImageBitmap::Create(this, aImage, aOffset, aLength, aFormat, aLayout,
+ aRv);
+ } else {
+ aRv.Throw(NS_ERROR_TYPE_ERR);
+ return nullptr;
+ }
+}
+
+// Helper called by methods that move/resize the window,
+// to ensure the presContext (if any) is aware of resolution
+// change that may happen in multi-monitor configuration.
+void
+nsGlobalWindow::CheckForDPIChange()
+{
+ if (mDocShell) {
+ RefPtr<nsPresContext> presContext;
+ mDocShell->GetPresContext(getter_AddRefs(presContext));
+ if (presContext) {
+ if (presContext->DeviceContext()->CheckDPIChange()) {
+ presContext->UIResolutionChanged();
+ }
+ }
+ }
+}
+
+mozilla::dom::TabGroup*
+nsGlobalWindow::TabGroupOuter()
+{
+ MOZ_RELEASE_ASSERT(IsOuterWindow());
+
+ // This method is valid both on inner and outer windows, which is a
+ // Outer windows lazily join TabGroups when requested. This is usually done
+ // because a document is getting its NodePrincipal, and asking for the
+ // TabGroup to determine its DocGroup.
+ if (!mTabGroup) {
+ // Get mOpener ourselves, instead of relying on GetOpenerWindowOuter,
+ // because that way we dodge the LegacyIsCallerChromeOrNativeCode() call
+ // which we want to return false.
+ nsCOMPtr<nsPIDOMWindowOuter> piOpener = do_QueryReferent(mOpener);
+ nsPIDOMWindowOuter* opener = GetSanitizedOpener(piOpener);
+ nsPIDOMWindowOuter* parent = GetScriptableParentOrNull();
+ MOZ_ASSERT(!parent || !opener, "Only one of parent and opener may be provided");
+
+ mozilla::dom::TabGroup* toJoin = nullptr;
+ if (GetDocShell()->ItemType() == nsIDocShellTreeItem::typeChrome) {
+ toJoin = TabGroup::GetChromeTabGroup();
+ } else if (opener) {
+ toJoin = opener->TabGroup();
+ } else if (parent) {
+ toJoin = parent->TabGroup();
+ }
+ mTabGroup = mozilla::dom::TabGroup::Join(AsOuter(), toJoin);
+ }
+ MOZ_ASSERT(mTabGroup);
+
+#ifdef DEBUG
+ // Ensure that we don't recurse forever
+ if (!mIsValidatingTabGroup) {
+ mIsValidatingTabGroup = true;
+ // We only need to do this check if we aren't in the chrome tab group
+ if (mIsChrome) {
+ MOZ_ASSERT(mTabGroup == TabGroup::GetChromeTabGroup());
+ } else {
+ // Sanity check that our tabgroup matches our opener or parent.
+ RefPtr<nsPIDOMWindowOuter> parent = GetScriptableParentOrNull();
+ MOZ_ASSERT_IF(parent, parent->TabGroup() == mTabGroup);
+ nsCOMPtr<nsPIDOMWindowOuter> piOpener = do_QueryReferent(mOpener);
+ nsPIDOMWindowOuter* opener = GetSanitizedOpener(piOpener);
+ MOZ_ASSERT_IF(opener && Cast(opener) != this, opener->TabGroup() == mTabGroup);
+ }
+ mIsValidatingTabGroup = false;
+ }
+#endif
+
+ return mTabGroup;
+}
+
+mozilla::dom::TabGroup*
+nsGlobalWindow::TabGroupInner()
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ // If we don't have a TabGroup yet, try to get it from the outer window and
+ // cache it.
+ if (!mTabGroup) {
+ nsGlobalWindow* 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 nsGlobalWindow::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
+ nsGlobalWindow* outer = GetOuterWindowInternal();
+ MOZ_ASSERT_IF(outer, outer->TabGroup() == mTabGroup);
+#endif
+
+ return mTabGroup;
+}
+
+template<typename T>
+mozilla::dom::TabGroup*
+nsPIDOMWindow<T>::TabGroup()
+{
+ nsGlobalWindow* globalWindow =
+ static_cast<nsGlobalWindow*>(
+ reinterpret_cast<nsPIDOMWindow<nsISupports>*>(this));
+
+ if (IsInnerWindow()) {
+ return globalWindow->TabGroupInner();
+ }
+ return globalWindow->TabGroupOuter();
+}
+
+template<typename T>
+mozilla::dom::DocGroup*
+nsPIDOMWindow<T>::GetDocGroup()
+{
+ nsIDocument* doc = GetExtantDoc();
+ if (doc) {
+ return doc->GetDocGroup();
+ }
+ return nullptr;
+}
+
+nsGlobalWindow::TemporarilyDisableDialogs::TemporarilyDisableDialogs(
+ nsGlobalWindow* aWindow MOZ_GUARD_OBJECT_NOTIFIER_PARAM_IN_IMPL)
+{
+ MOZ_GUARD_OBJECT_NOTIFIER_INIT;
+
+ MOZ_ASSERT(aWindow);
+ nsGlobalWindow* topWindow = aWindow->GetScriptableTopInternal();
+ if (!topWindow) {
+ NS_ERROR("nsGlobalWindow::TemporarilyDisableDialogs used without a top "
+ "window?");
+ return;
+ }
+
+ // TODO: Warn if no top window?
+ topWindow = topWindow->GetCurrentInnerWindowInternal();
+ if (topWindow) {
+ mTopWindow = topWindow;
+ mSavedDialogsEnabled = mTopWindow->mAreDialogsEnabled;
+ mTopWindow->mAreDialogsEnabled = false;
+ }
+}
+
+nsGlobalWindow::TemporarilyDisableDialogs::~TemporarilyDisableDialogs()
+{
+ if (mTopWindow) {
+ mTopWindow->mAreDialogsEnabled = mSavedDialogsEnabled;
+ }
+}
+
+already_AddRefed<Worklet>
+nsGlobalWindow::CreateWorklet(ErrorResult& aRv)
+{
+ MOZ_RELEASE_ASSERT(IsInnerWindow());
+
+ if (!mDoc) {
+ aRv.Throw(NS_ERROR_FAILURE);
+ return nullptr;
+ }
+
+ RefPtr<Worklet> worklet = new Worklet(AsInner(), mDoc->NodePrincipal());
+ return worklet.forget();
+}
+
+template class nsPIDOMWindow<mozIDOMWindowProxy>;
+template class nsPIDOMWindow<mozIDOMWindow>;
+template class nsPIDOMWindow<nsISupports>;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-24 15:48:44 +0000