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nsGlobalWindow.cpp
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nsGlobalWindow.cpp
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=2 et tw=78: */
/* 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 "base/basictypes.h"
/* This must occur *after* base/basictypes.h to avoid typedefs conflicts. */
#include "mozilla/Util.h"
// Local Includes
#include "nsGlobalWindow.h"
#include "Navigator.h"
#include "nsScreen.h"
#include "nsHistory.h"
#include "nsPerformance.h"
#include "nsDOMNavigationTiming.h"
#include "nsBarProps.h"
#include "nsDOMStorage.h"
#include "nsDOMOfflineResourceList.h"
#include "nsDOMError.h"
#ifdef XP_WIN
#ifdef GetClassName
#undef GetClassName
#endif // GetClassName
#endif // XP_WIN
// Helper Classes
#include "nsXPIDLString.h"
#include "nsJSUtils.h"
#include "prmem.h"
#include "jsapi.h" // for JSAutoRequest
#include "jsdbgapi.h" // for JS_ClearWatchPointsForObject
#include "jsfriendapi.h" // for JS_GetGlobalForFrame
#include "jswrapper.h"
#include "nsReadableUtils.h"
#include "nsDOMClassInfo.h"
#include "nsJSEnvironment.h"
#include "nsCharSeparatedTokenizer.h" // for Accept-Language parsing
#include "nsUnicharUtils.h"
#include "mozilla/Preferences.h"
// Other Classes
#include "nsEventListenerManager.h"
#include "nsEscape.h"
#include "nsStyleCoord.h"
#include "nsMimeTypeArray.h"
#include "nsNetUtil.h"
#include "nsICachingChannel.h"
#include "nsPluginArray.h"
#include "nsIPluginHost.h"
#include "nsPluginHost.h"
#include "nsIPluginInstanceOwner.h"
#include "nsGeolocation.h"
#include "nsDesktopNotification.h"
#include "nsContentCID.h"
#include "nsLayoutStatics.h"
#include "nsCycleCollector.h"
#include "nsCCUncollectableMarker.h"
#include "nsAutoJSValHolder.h"
#include "nsDOMMediaQueryList.h"
#include "mozilla/dom/workers/Workers.h"
#include "nsJSPrincipals.h"
#include "mozilla/Attributes.h"
// Interfaces Needed
#include "nsIFrame.h"
#include "nsCanvasFrame.h"
#include "nsIWidget.h"
#include "nsIBaseWindow.h"
#include "nsDeviceSensors.h"
#include "nsIContent.h"
#include "nsIContentViewerEdit.h"
#include "nsIDocShell.h"
#include "nsIDocShellLoadInfo.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIEditorDocShell.h"
#include "nsIDocCharset.h"
#include "nsIDocument.h"
#include "nsIHTMLDocument.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMHTMLElement.h"
#ifndef MOZ_DISABLE_DOMCRYPTO
#include "nsIDOMCrypto.h"
#endif
#include "nsIDOMDocument.h"
#include "nsIDOMElement.h"
#include "nsIDOMEvent.h"
#include "nsIDOMHTMLAnchorElement.h"
#include "nsIDOMKeyEvent.h"
#include "nsIDOMMessageEvent.h"
#include "nsIDOMPopupBlockedEvent.h"
#include "nsIDOMPopStateEvent.h"
#include "nsIDOMHashChangeEvent.h"
#include "nsIDOMOfflineResourceList.h"
#include "nsIDOMGeoGeolocation.h"
#include "nsIDOMDesktopNotification.h"
#include "nsPIDOMStorage.h"
#include "nsDOMString.h"
#include "nsIEmbeddingSiteWindow.h"
#include "nsThreadUtils.h"
#include "nsEventStateManager.h"
#include "nsIHttpProtocolHandler.h"
#include "nsIJSContextStack.h"
#include "nsIJSRuntimeService.h"
#include "nsILoadContext.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIPresShell.h"
#include "nsIProgrammingLanguage.h"
#include "nsIServiceManager.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsIScriptSecurityManager.h"
#include "nsIScrollableFrame.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsISelectionController.h"
#include "nsISelection.h"
#include "nsIPrompt.h"
#include "nsIPromptService.h"
#include "nsIPromptFactory.h"
#include "nsIWritablePropertyBag2.h"
#include "nsIWebNavigation.h"
#include "nsIWebBrowser.h"
#include "nsIWebBrowserChrome.h"
#include "nsIWebBrowserFind.h" // For window.find()
#include "nsIWebContentHandlerRegistrar.h"
#include "nsIWindowMediator.h" // For window.find()
#include "nsComputedDOMStyle.h"
#include "nsIEntropyCollector.h"
#include "nsDOMCID.h"
#include "nsDOMError.h"
#include "nsDOMWindowUtils.h"
#include "nsIWindowWatcher.h"
#include "nsPIWindowWatcher.h"
#include "nsIContentViewer.h"
#include "nsIJSNativeInitializer.h"
#include "nsIScriptError.h"
#include "nsIConsoleService.h"
#include "nsIControllers.h"
#include "nsIControllerContext.h"
#include "nsGlobalWindowCommands.h"
#include "nsAutoPtr.h"
#include "nsContentUtils.h"
#include "nsCSSProps.h"
#include "nsBlobProtocolHandler.h"
#include "nsIDOMFile.h"
#include "nsIDOMFileList.h"
#include "nsIURIFixup.h"
#include "mozilla/FunctionTimer.h"
#include "nsCDefaultURIFixup.h"
#include "nsEventDispatcher.h"
#include "nsIObserverService.h"
#include "nsIXULAppInfo.h"
#include "nsNetUtil.h"
#include "nsFocusManager.h"
#include "nsIXULWindow.h"
#include "nsEventStateManager.h"
#include "nsITimedChannel.h"
#include "nsICookiePermission.h"
#include "nsServiceManagerUtils.h"
#ifdef MOZ_XUL
#include "nsXULPopupManager.h"
#include "nsIDOMXULControlElement.h"
#include "nsMenuPopupFrame.h"
#endif
#include "xpcprivate.h"
#ifdef NS_PRINTING
#include "nsIPrintSettings.h"
#include "nsIPrintSettingsService.h"
#include "nsIWebBrowserPrint.h"
#endif
#include "nsWindowRoot.h"
#include "nsNetCID.h"
#include "nsIArray.h"
#include "nsIScriptRuntime.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 "nsFrameLoader.h"
#include "nsISupportsPrimitives.h"
#include "nsXPCOMCID.h"
#include "mozilla/FunctionTimer.h"
#include "mozIThirdPartyUtil.h"
#ifdef MOZ_LOGGING
// so we can get logging even in release builds
#define FORCE_PR_LOG 1
#endif
#include "prlog.h"
#include "prenv.h"
#include "mozilla/dom/indexedDB/IDBFactory.h"
#include "mozilla/dom/indexedDB/IndexedDatabaseManager.h"
#include "mozilla/dom/StructuredCloneTags.h"
#include "nsRefreshDriver.h"
#include "mozAutoDocUpdate.h"
#include "mozilla/Telemetry.h"
#include "nsLocation.h"
#include "nsWrapperCacheInlines.h"
#include "nsDOMEventTargetHelper.h"
#include "nsIAppsService.h"
#ifdef ANDROID
#include <android/log.h>
#endif
#ifdef PR_LOGGING
static PRLogModuleInfo* gDOMLeakPRLog;
#endif
static const char kStorageEnabled[] = "dom.storage.enabled";
using namespace mozilla;
using namespace mozilla::dom;
using mozilla::TimeStamp;
using mozilla::TimeDuration;
nsGlobalWindow::WindowByIdTable *nsGlobalWindow::sWindowsById = nsnull;
bool nsGlobalWindow::sWarnedAboutWindowInternal = false;
static nsIEntropyCollector *gEntropyCollector = nsnull;
static PRInt32 gRefCnt = 0;
static PRInt32 gOpenPopupSpamCount = 0;
static PopupControlState gPopupControlState = openAbused;
static PRInt32 gRunningTimeoutDepth = 0;
static bool gMouseDown = false;
static bool gDragServiceDisabled = false;
static FILE *gDumpFile = nsnull;
static PRUint64 gNextWindowID = 0;
static PRUint32 gSerialCounter = 0;
static PRUint32 gTimeoutsRecentlySet = 0;
static TimeStamp gLastRecordedRecentTimeouts;
#define STATISTICS_INTERVAL (30 * PR_MSEC_PER_SEC)
#ifdef DEBUG_jst
PRInt32 gTimeoutCnt = 0;
#endif
#if !(defined(DEBUG) || defined(MOZ_ENABLE_JS_DUMP))
static bool gDOMWindowDumpEnabled = false;
#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 PRInt32 gMinTimeoutValue;
static PRInt32 gMinBackgroundTimeoutValue;
inline PRInt32
nsGlobalWindow::DOMMinTimeoutValue() const {
bool isBackground = !mOuterWindow || mOuterWindow->IsBackground();
return
NS_MAX(isBackground ? gMinBackgroundTimeoutValue : gMinTimeoutValue, 0);
}
// 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
#define FORWARD_TO_OUTER(method, args, err_rval) \
PR_BEGIN_MACRO \
if (IsInnerWindow()) { \
nsGlobalWindow *outer = GetOuterWindowInternal(); \
if (!outer) { \
NS_WARNING("No outer window available!"); \
return err_rval; \
} \
return outer->method args; \
} \
PR_END_MACRO
#define FORWARD_TO_OUTER_VOID(method, args) \
PR_BEGIN_MACRO \
if (IsInnerWindow()) { \
nsGlobalWindow *outer = GetOuterWindowInternal(); \
if (!outer) { \
NS_WARNING("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 (!outer) { \
NS_WARNING("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 *)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 (!outer) { \
NS_WARNING("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<nsIDOMDocument> doc; \
nsresult fwdic_nr = GetDocument(getter_AddRefs(doc)); \
NS_ENSURE_SUCCESS(fwdic_nr, err_rval); \
if (!mInnerWindow) { \
return err_rval; \
} \
} \
return GetCurrentInnerWindowInternal()->method args; \
} \
PR_END_MACRO
// CIDs
static NS_DEFINE_CID(kXULControllersCID, NS_XULCONTROLLERS_CID);
static const char sJSStackContractID[] = "@mozilla.org/js/xpc/ContextStack;1";
#ifndef MOZ_DISABLE_DOMCRYPTO
static const char kCryptoContractID[] = NS_CRYPTO_CONTRACTID;
static const char kPkcs11ContractID[] = NS_PKCS11_CONTRACTID;
#endif
static const char sPopStatePrefStr[] = "browser.history.allowPopState";
/**
* An object implementing the window.URL property.
*/
class nsDOMMozURLProperty MOZ_FINAL : public nsIDOMMozURLProperty
{
public:
nsDOMMozURLProperty(nsGlobalWindow* aWindow)
: mWindow(aWindow)
{
}
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMMOZURLPROPERTY
void ClearWindowReference() {
mWindow = nsnull;
}
private:
nsGlobalWindow* mWindow;
};
DOMCI_DATA(MozURLProperty, nsDOMMozURLProperty)
NS_IMPL_ADDREF(nsDOMMozURLProperty)
NS_IMPL_RELEASE(nsDOMMozURLProperty)
NS_INTERFACE_MAP_BEGIN(nsDOMMozURLProperty)
NS_INTERFACE_MAP_ENTRY(nsIDOMMozURLProperty)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMMozURLProperty)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozURLProperty)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
nsDOMMozURLProperty::CreateObjectURL(nsIDOMBlob* aBlob, nsAString& aURL)
{
NS_PRECONDITION(!mWindow || mWindow->IsInnerWindow(),
"Should be inner window");
NS_ENSURE_STATE(mWindow && mWindow->mDoc);
NS_ENSURE_ARG_POINTER(aBlob);
nsIDocument* doc = mWindow->mDoc;
nsresult rv = aBlob->GetInternalUrl(doc->NodePrincipal(), aURL);
NS_ENSURE_SUCCESS(rv, rv);
doc->RegisterFileDataUri(NS_LossyConvertUTF16toASCII(aURL));
return NS_OK;
}
NS_IMETHODIMP
nsDOMMozURLProperty::RevokeObjectURL(const nsAString& aURL)
{
NS_PRECONDITION(!mWindow || mWindow->IsInnerWindow(),
"Should be inner window");
NS_ENSURE_STATE(mWindow);
NS_LossyConvertUTF16toASCII asciiurl(aURL);
nsIPrincipal* winPrincipal = mWindow->GetPrincipal();
if (!winPrincipal) {
return NS_OK;
}
nsIPrincipal* principal =
nsBlobProtocolHandler::GetFileDataEntryPrincipal(asciiurl);
bool subsumes;
if (principal && winPrincipal &&
NS_SUCCEEDED(winPrincipal->Subsumes(principal, &subsumes)) &&
subsumes) {
if (mWindow->mDoc) {
mWindow->mDoc->UnregisterFileDataUri(asciiurl);
}
nsBlobProtocolHandler::RemoveFileDataEntry(asciiurl);
}
return NS_OK;
}
/**
* An indirect observer object that means we don't have to implement nsIObserver
* on nsGlobalWindow, where any script could see it.
*/
class nsGlobalWindowObserver MOZ_FINAL : public nsIObserver {
public:
nsGlobalWindowObserver(nsGlobalWindow* aWindow) : mWindow(aWindow) {}
NS_DECL_ISUPPORTS
NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic, const PRUnichar* aData)
{
if (!mWindow)
return NS_OK;
return mWindow->Observe(aSubject, aTopic, aData);
}
void Forget() { mWindow = nsnull; }
private:
nsGlobalWindow* mWindow;
};
NS_IMPL_ISUPPORTS1(nsGlobalWindowObserver, nsIObserver)
nsTimeout::nsTimeout()
{
#ifdef DEBUG_jst
{
extern int gTimeoutCnt;
++gTimeoutCnt;
}
#endif
memset(this, 0, sizeof(*this));
MOZ_COUNT_CTOR(nsTimeout);
}
nsTimeout::~nsTimeout()
{
#ifdef DEBUG_jst
{
extern int gTimeoutCnt;
--gTimeoutCnt;
}
#endif
MOZ_COUNT_DTOR(nsTimeout);
}
NS_IMPL_CYCLE_COLLECTION_NATIVE_CLASS(nsTimeout)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NATIVE_0(nsTimeout)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_BEGIN(nsTimeout)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mWindow,
nsIScriptGlobalObject)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mPrincipal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mScriptHandler)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(nsTimeout, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(nsTimeout, Release)
nsPIDOMWindow::nsPIDOMWindow(nsPIDOMWindow *aOuterWindow)
: mFrameElement(nsnull), mDocShell(nsnull), mModalStateDepth(0),
mRunningTimeout(nsnull), mMutationBits(0), mIsDocumentLoaded(false),
mIsHandlingResizeEvent(false), mIsInnerWindow(aOuterWindow != nsnull),
mMayHavePaintEventListener(false), mMayHaveTouchEventListener(false),
mMayHaveMouseEnterLeaveEventListener(false),
mIsModalContentWindow(false),
mIsActive(false), mIsBackground(false),
mInnerWindow(nsnull), mOuterWindow(aOuterWindow),
// Make sure no actual window ends up with mWindowID == 0
mWindowID(++gNextWindowID), mHasNotifiedGlobalCreated(false)
{}
nsPIDOMWindow::~nsPIDOMWindow() {}
//*****************************************************************************
// nsOuterWindowProxy: Outer Window Proxy
//*****************************************************************************
class nsOuterWindowProxy : public js::DirectWrapper
{
public:
nsOuterWindowProxy() : js::DirectWrapper(0) {}
virtual bool isOuterWindow() {
return true;
}
JSString *obj_toString(JSContext *cx, JSObject *wrapper);
void finalize(JSFreeOp *fop, JSObject *proxy);
static nsOuterWindowProxy singleton;
};
JSString *
nsOuterWindowProxy::obj_toString(JSContext *cx, JSObject *proxy)
{
JS_ASSERT(js::IsProxy(proxy));
return JS_NewStringCopyZ(cx, "[object Window]");
}
void
nsOuterWindowProxy::finalize(JSFreeOp *fop, JSObject *proxy)
{
nsISupports *global =
static_cast<nsISupports*>(js::GetProxyExtra(proxy, 0).toPrivate());
if (global) {
nsWrapperCache *cache;
CallQueryInterface(global, &cache);
cache->ClearWrapper();
}
}
nsOuterWindowProxy
nsOuterWindowProxy::singleton;
static JSObject*
NewOuterWindowProxy(JSContext *cx, JSObject *parent)
{
JSAutoEnterCompartment ac;
if (!ac.enter(cx, parent)) {
return nsnull;
}
JSObject *obj = js::Wrapper::New(cx, parent, js::GetObjectProto(parent), parent,
&nsOuterWindowProxy::singleton);
NS_ASSERTION(js::GetObjectClass(obj)->ext.innerObject, "bad class");
return obj;
}
//*****************************************************************************
//*** nsGlobalWindow: Object Management
//*****************************************************************************
nsGlobalWindow::nsGlobalWindow(nsGlobalWindow *aOuterWindow)
: nsPIDOMWindow(aOuterWindow),
mIsFrozen(false),
mFullScreen(false),
mIsClosed(false),
mInClose(false),
mHavePendingClose(false),
mHadOriginalOpener(false),
mIsPopupSpam(false),
mBlockScriptedClosingFlag(false),
mFireOfflineStatusChangeEventOnThaw(false),
mCreatingInnerWindow(false),
mIsChrome(false),
mCleanMessageManager(false),
mNeedsFocus(true),
mHasFocus(false),
#if defined(XP_MACOSX)
mShowAccelerators(false),
mShowFocusRings(false),
#else
mShowAccelerators(true),
mShowFocusRings(true),
#endif
mShowFocusRingForContent(false),
mFocusByKeyOccurred(false),
mNotifiedIDDestroyed(false),
mIsApp(TriState_Unknown),
mTimeoutInsertionPoint(nsnull),
mTimeoutPublicIdCounter(1),
mTimeoutFiringDepth(0),
mJSObject(nsnull),
mTimeoutsSuspendDepth(0),
mFocusMethod(0),
mSerial(0),
#ifdef DEBUG
mSetOpenerWindowCalled(false),
#endif
mCleanedUp(false),
mCallCleanUpAfterModalDialogCloses(false),
mDialogAbuseCount(0),
mDialogDisabled(false)
{
nsLayoutStatics::AddRef();
// Initialize the PRCList (this).
PR_INIT_CLIST(this);
// Initialize timeout storage
PR_INIT_CLIST(&mTimeouts);
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) {
NS_ADDREF(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);
}
}
} else {
// |this| is an outer window. Outer windows start out frozen and
// remain frozen until they get an inner window, so freeze this
// outer window here.
Freeze();
mObserver = nsnull;
SetIsDOMBinding();
}
// 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++;
if (gRefCnt == 1) {
#if !(defined(DEBUG) || defined(MOZ_ENABLE_JS_DUMP))
Preferences::AddBoolVarCache(&gDOMWindowDumpEnabled,
"browser.dom.window.dump.enabled");
#endif
Preferences::AddIntVarCache(&gMinTimeoutValue,
"dom.min_timeout_value",
DEFAULT_MIN_TIMEOUT_VALUE);
Preferences::AddIntVarCache(&gMinBackgroundTimeoutValue,
"dom.min_background_timeout_value",
DEFAULT_MIN_BACKGROUND_TIMEOUT_VALUE);
}
if (gDumpFile == nsnull) {
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("++DOMWINDOW == %d (%p) [serial = %d] [outer = %p]\n", gRefCnt,
static_cast<void*>(static_cast<nsIScriptGlobalObject*>(this)),
gSerialCounter, static_cast<void*>(aOuterWindow));
}
#endif
#ifdef PR_LOGGING
if (gDOMLeakPRLog)
PR_LOG(gDOMLeakPRLog, PR_LOG_DEBUG,
("DOMWINDOW %p created outer=%p", this, aOuterWindow));
#endif
NS_ASSERTION(sWindowsById, "Windows hash table must be created!");
NS_ASSERTION(!sWindowsById->Get(mWindowID),
"This window shouldn't be in the hash table yet!");
sWindowsById->Put(mWindowID, this);
mEventTargetObjects.Init();
}
/* static */
void
nsGlobalWindow::Init()
{
CallGetService(NS_ENTROPYCOLLECTOR_CONTRACTID, &gEntropyCollector);
NS_ASSERTION(gEntropyCollector,
"gEntropyCollector should have been initialized!");
#ifdef PR_LOGGING
gDOMLeakPRLog = PR_NewLogModule("DOMLeak");
NS_ASSERTION(gDOMLeakPRLog, "gDOMLeakPRLog should have been initialized!");
#endif
sWindowsById = new WindowByIdTable();
sWindowsById->Init();
}
static PLDHashOperator
DisconnectEventTargetObjects(nsPtrHashKey<nsDOMEventTargetHelper>* aKey,
void* aClosure)
{
nsRefPtr<nsDOMEventTargetHelper> target = aKey->GetKey();
target->DisconnectFromOwner();
return PL_DHASH_NEXT;
}
nsGlobalWindow::~nsGlobalWindow()
{
mEventTargetObjects.EnumerateEntries(DisconnectEventTargetObjects, nsnull);
mEventTargetObjects.Clear();
// 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")) {
nsCAutoString url;
if (mLastOpenedURI) {
mLastOpenedURI->GetSpec(url);
}
printf("--DOMWINDOW == %d (%p) [serial = %d] [outer = %p] [url = %s]\n",
gRefCnt, static_cast<void*>(static_cast<nsIScriptGlobalObject*>(this)),
mSerial, static_cast<void*>(mOuterWindow.get()), url.get());
}
#endif
#ifdef PR_LOGGING
if (gDOMLeakPRLog)
PR_LOG(gDOMLeakPRLog, PR_LOG_DEBUG,
("DOMWINDOW %p destroyed", this));
#endif
if (IsOuterWindow()) {
JSObject *proxy = GetWrapperPreserveColor();
if (proxy) {
js::SetProxyExtra(proxy, 0, js::PrivateValue(NULL));
}
// 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);
}
} else {
Telemetry::Accumulate(Telemetry::INNERWINDOWS_WITH_MUTATION_LISTENERS,
mMutationBits ? 1 : 0);
if (mListenerManager) {
mListenerManager->Disconnect();
mListenerManager = nsnull;
}
// 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);
}
}
mDocument = nsnull; // Forces Release
mDoc = nsnull;
NS_ASSERTION(!mArguments, "mArguments wasn't cleaned up properly!");
CleanUp(true);
#ifdef DEBUG
nsCycleCollector_DEBUG_wasFreed(static_cast<nsIScriptGlobalObject*>(this));
#endif
if (mURLProperty) {
mURLProperty->ClearWindowReference();
}
nsCOMPtr<nsIDeviceSensors> ac = do_GetService(NS_DEVICE_SENSORS_CONTRACTID);
if (ac)
ac->RemoveWindowAsListener(this);
nsLayoutStatics::Release();
}
void
nsGlobalWindow::AddEventTargetObject(nsDOMEventTargetHelper* aObject)
{
mEventTargetObjects.PutEntry(aObject);
}
void
nsGlobalWindow::RemoveEventTargetObject(nsDOMEventTargetHelper* aObject)
{
mEventTargetObjects.RemoveEntry(aObject);
}
// static
void
nsGlobalWindow::ShutDown()
{
if (gDumpFile && gDumpFile != stdout) {
fclose(gDumpFile);
}
gDumpFile = nsnull;
NS_IF_RELEASE(gEntropyCollector);
delete sWindowsById;
sWindowsById = nsnull;
}
// static
void
nsGlobalWindow::CleanupCachedXBLHandlers(nsGlobalWindow* aWindow)
{
if (aWindow->mCachedXBLPrototypeHandlers.IsInitialized() &&
aWindow->mCachedXBLPrototypeHandlers.Count() > 0) {
aWindow->mCachedXBLPrototypeHandlers.Clear();
nsISupports* supports;
aWindow->QueryInterface(NS_GET_IID(nsCycleCollectionISupports),
reinterpret_cast<void**>(&supports));
NS_ASSERTION(supports, "Failed to QI to nsCycleCollectionISupports?!");
nsContentUtils::DropJSObjects(supports);
}
}
void
nsGlobalWindow::MaybeForgiveSpamCount()
{
if (IsOuterWindow() &&
IsPopupSpamWindow())
{
SetPopupSpamWindow(false);
--gOpenPopupSpamCount;
NS_ASSERTION(gOpenPopupSpamCount >= 0,
"Unbalanced decrement of gOpenPopupSpamCount");
}
}
void
nsGlobalWindow::CleanUp(bool aIgnoreModalDialog)
{
if (IsOuterWindow() && !aIgnoreModalDialog) {
nsGlobalWindow* inner = GetCurrentInnerWindowInternal();
nsCOMPtr<nsIDOMModalContentWindow> dlg(do_QueryObject(inner));
if (dlg) {
// The window we're trying to clean up is the outer window of a
// modal dialog. Defer cleanup until the window closes, and let
// ShowModalDialog take care of calling CleanUp.
mCallCleanUpAfterModalDialogCloses = true;
return;
}
}
// Guarantee idempotence.
if (mCleanedUp)
return;
mCleanedUp = true;
mEventTargetObjects.EnumerateEntries(DisconnectEventTargetObjects, nsnull);
mEventTargetObjects.Clear();
if (mObserver) {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
os->RemoveObserver(mObserver, NS_IOSERVICE_OFFLINE_STATUS_TOPIC);
os->RemoveObserver(mObserver, "dom-storage2-changed");
}
// Drop its reference to this dying window, in case for some bogus reason
// the object stays around.
mObserver->Forget();
NS_RELEASE(mObserver);
}
mNavigator = nsnull;
mScreen = nsnull;
mMenubar = nsnull;
mToolbar = nsnull;
mLocationbar = nsnull;
mPersonalbar = nsnull;
mStatusbar = nsnull;
mScrollbars = nsnull;
mLocation = nsnull;
mHistory = nsnull;
mFrames = nsnull;
mWindowUtils = nsnull;
mApplicationCache = nsnull;
mIndexedDB = nsnull;
mPerformance = nsnull;
ClearControllers();
mOpener = nsnull; // Forces Release
if (mContext) {
#ifdef DEBUG
nsCycleCollector_DEBUG_shouldBeFreed(mContext);
#endif
mContext = nsnull; // Forces Release