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gecko-dev/dom/base/nsGlobalWindow.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 et tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsGlobalWindow_h___
#define nsGlobalWindow_h___
#include "nsPIDOMWindow.h"
#include "nsTHashtable.h"
#include "nsHashKeys.h"
#include "nsRefPtrHashtable.h"
// Local Includes
// Helper Classes
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsWeakReference.h"
#include "nsDataHashtable.h"
#include "nsJSThingHashtable.h"
#include "nsCycleCollectionParticipant.h"
// Interfaces Needed
#include "nsIBrowserDOMWindow.h"
#include "nsIDOMEventTarget.h"
#include "nsIInterfaceRequestor.h"
#include "nsIDOMJSWindow.h"
#include "nsIDOMChromeWindow.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsITimer.h"
#include "nsIDOMModalContentWindow.h"
#include "nsEventListenerManager.h"
#include "nsIPrincipal.h"
#include "nsSize.h"
#include "mozFlushType.h"
#include "prclist.h"
#include "nsIDOMStorageEvent.h"
#include "nsFrameMessageManager.h"
#include "mozilla/LinkedList.h"
#include "mozilla/TimeStamp.h"
#include "nsIInlineEventHandlers.h"
#include "nsWrapperCacheInlines.h"
#include "nsIIdleObserver.h"
#include "nsIDocument.h"
#include "nsIDOMTouchEvent.h"
#include "mozilla/dom/EventTarget.h"
#include "Units.h"
#include "nsComponentManagerUtils.h"
#ifdef MOZ_B2G
#include "nsIDOMWindowB2G.h"
#endif // MOZ_B2G
#ifdef MOZ_WEBSPEECH
#include "nsISpeechSynthesisGetter.h"
#endif // MOZ_WEBSPEECH
#define DEFAULT_HOME_PAGE "www.mozilla.org"
#define PREF_BROWSER_STARTUP_HOMEPAGE "browser.startup.homepage"
// Amount of time allowed between alert/prompt/confirm before enabling
// the stop dialog checkbox.
#define DEFAULT_SUCCESSIVE_DIALOG_TIME_LIMIT 3 // 3 sec
// Maximum number of successive dialogs before we prompt users to disable
// dialogs for this window.
#define MAX_SUCCESSIVE_DIALOG_COUNT 5
// Idle fuzz time upper limit
#define MAX_IDLE_FUZZ_TIME_MS 90000
// Min idle notification time in seconds.
#define MIN_IDLE_NOTIFICATION_TIME_S 1
class nsIArray;
class nsIBaseWindow;
class nsIContent;
class nsIDocShellTreeOwner;
class nsIDOMCrypto;
class nsIDOMOfflineResourceList;
class nsIDOMMozWakeLock;
class nsIScrollableFrame;
class nsIControllers;
class nsIScriptContext;
class nsIScriptTimeoutHandler;
class nsIWebBrowserChrome;
class nsDOMWindowList;
class nsLocation;
class nsScreen;
class nsHistory;
class nsGlobalWindowObserver;
class nsGlobalWindow;
class nsDOMEventTargetHelper;
class nsDOMWindowUtils;
class nsIIdleService;
struct nsIntSize;
struct nsRect;
class nsWindowSizes;
namespace mozilla {
namespace dom {
class BarProp;
class Gamepad;
class Navigator;
class SpeechSynthesis;
namespace indexedDB {
class IDBFactory;
} // namespace indexedDB
} // namespace dom
} // namespace mozilla
extern nsresult
NS_CreateJSTimeoutHandler(nsGlobalWindow *aWindow,
bool *aIsInterval,
int32_t *aInterval,
nsIScriptTimeoutHandler **aRet);
/*
* Timeout struct that holds information about each script
* timeout. Holds a strong reference to an nsIScriptTimeoutHandler, which
* abstracts the language specific cruft.
*/
struct nsTimeout : mozilla::LinkedListElement<nsTimeout>
{
nsTimeout();
~nsTimeout();
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsTimeout)
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(nsTimeout)
nsresult InitTimer(nsTimerCallbackFunc aFunc, uint32_t aDelay)
{
return mTimer->InitWithFuncCallback(aFunc, this, aDelay,
nsITimer::TYPE_ONE_SHOT);
}
bool HasRefCntOne();
// Window for which this timeout fires
nsRefPtr<nsGlobalWindow> mWindow;
// The actual timer object
nsCOMPtr<nsITimer> mTimer;
// True if the timeout was cleared
bool mCleared;
// True if this is one of the timeouts that are currently running
bool mRunning;
// True if this is a repeating/interval timer
bool mIsInterval;
// Returned as value of setTimeout()
uint32_t mPublicId;
// Interval in milliseconds
uint32_t mInterval;
// mWhen and mTimeRemaining can't be in a union, sadly, because they
// have constructors.
// Nominal time to run this timeout. Use only when timeouts are not
// suspended.
mozilla::TimeStamp mWhen;
// Remaining time to wait. Used only when timeouts are suspended.
mozilla::TimeDuration mTimeRemaining;
// Principal with which to execute
nsCOMPtr<nsIPrincipal> mPrincipal;
// stack depth at which timeout is firing
uint32_t mFiringDepth;
//
uint32_t mNestingLevel;
// The popup state at timeout creation time if not created from
// another timeout
PopupControlState mPopupState;
// The language-specific information about the callback.
nsCOMPtr<nsIScriptTimeoutHandler> mScriptHandler;
};
struct IdleObserverHolder
{
nsCOMPtr<nsIIdleObserver> mIdleObserver;
uint32_t mTimeInS;
bool mPrevNotificationIdle;
IdleObserverHolder()
: mTimeInS(0), mPrevNotificationIdle(false)
{
MOZ_COUNT_CTOR(IdleObserverHolder);
}
IdleObserverHolder(const IdleObserverHolder& aOther)
: mIdleObserver(aOther.mIdleObserver), mTimeInS(aOther.mTimeInS),
mPrevNotificationIdle(aOther.mPrevNotificationIdle)
{
MOZ_COUNT_CTOR(IdleObserverHolder);
}
bool operator==(const IdleObserverHolder& aOther) const {
return
mIdleObserver == aOther.mIdleObserver &&
mTimeInS == aOther.mTimeInS;
}
~IdleObserverHolder()
{
MOZ_COUNT_DTOR(IdleObserverHolder);
}
};
static inline already_AddRefed<nsIVariant>
CreateVoidVariant()
{
nsCOMPtr<nsIWritableVariant> writable =
do_CreateInstance(NS_VARIANT_CONTRACTID);
writable->SetAsVoid();
return writable.forget();
}
// Helper class to manage modal dialog arguments and all their quirks.
//
// Given our clunky embedding APIs, modal dialog arguments need to be passed
// as an nsISupports parameter to WindowWatcher, get stuck inside an array of
// length 1, and then passed back to the newly-created dialog.
//
// However, we need to track both the caller-passed value as well as the
// caller's, so that we can do an origin check (even for primitives) when the
// value is accessed. This class encapsulates that magic.
//
// We also use the same machinery for |returnValue|, which needs similar origin
// checks.
class DialogValueHolder : public nsISupports
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS(DialogValueHolder)
DialogValueHolder(nsIPrincipal* aSubject, nsIVariant* aValue)
: mOrigin(aSubject)
, mValue(aValue) {}
nsresult Get(nsIPrincipal* aSubject, nsIVariant** aResult)
{
nsCOMPtr<nsIVariant> result;
if (aSubject->Subsumes(mOrigin)) {
result = mValue;
} else {
result = CreateVoidVariant();
}
result.forget(aResult);
return NS_OK;
}
virtual ~DialogValueHolder() {}
private:
nsCOMPtr<nsIPrincipal> mOrigin;
nsCOMPtr<nsIVariant> mValue;
};
//*****************************************************************************
// nsGlobalWindow: Global Object for Scripting
//*****************************************************************************
// Beware that all scriptable interfaces implemented by
// nsGlobalWindow will be reachable from JS, if you make this class
// implement new interfaces you better know what you're
// doing. Security wise this is very sensitive code. --
// jst@netscape.com
// nsGlobalWindow inherits PRCList for maintaining a list of all inner
// windows still in memory for any given outer window. This list is
// needed to ensure that mOuterWindow doesn't end up dangling. The
// nature of PRCList means that the window itself is always in the
// list, and an outer window's list will also contain all inner window
// objects that are still in memory (and in reality all inner window
// object's lists also contain its outer and all other inner windows
// belonging to the same outer window, but that's an unimportant
// side effect of inheriting PRCList).
class nsGlobalWindow : public mozilla::dom::EventTarget,
public nsPIDOMWindow,
public nsIScriptGlobalObject,
public nsIScriptObjectPrincipal,
public nsIDOMJSWindow,
public nsSupportsWeakReference,
public nsIInterfaceRequestor,
public PRCListStr,
public nsIDOMWindowPerformance,
public nsITouchEventReceiver,
public nsIInlineEventHandlers
#ifdef MOZ_B2G
, public nsIDOMWindowB2G
#endif // MOZ_B2G
#ifdef MOZ_WEBSPEECH
, public nsISpeechSynthesisGetter
#endif // MOZ_WEBSPEECH
{
public:
typedef mozilla::TimeStamp TimeStamp;
typedef mozilla::TimeDuration TimeDuration;
typedef mozilla::dom::Navigator Navigator;
typedef nsDataHashtable<nsUint64HashKey, nsGlobalWindow*> WindowByIdTable;
// public methods
nsPIDOMWindow* GetPrivateParent();
// callback for close event
void ReallyCloseWindow();
// nsISupports
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
// nsWrapperCache
virtual JSObject *WrapObject(JSContext *cx,
JS::Handle<JSObject*> scope) MOZ_OVERRIDE
{
NS_ASSERTION(IsOuterWindow(),
"Inner window supports nsWrapperCache, fix WrapObject!");
return EnsureInnerWindow() ? GetWrapper() : nullptr;
}
// nsIGlobalJSObjectHolder
virtual JSObject *GetGlobalJSObject();
// nsIScriptGlobalObject
virtual nsIScriptContext *GetContext();
JSObject *FastGetGlobalJSObject()
{
return mJSObject;
}
void TraceGlobalJSObject(JSTracer* aTrc);
virtual nsresult EnsureScriptEnvironment();
virtual nsIScriptContext *GetScriptContext();
void PoisonOuterWindowProxy(JSObject *aObject);
virtual void OnFinalize(JSObject* aObject);
virtual void SetScriptsEnabled(bool aEnabled, bool aFireTimeouts);
virtual bool IsBlackForCC();
// nsIScriptObjectPrincipal
virtual nsIPrincipal* GetPrincipal();
// nsIDOMWindow
NS_DECL_NSIDOMWINDOW
#ifdef MOZ_B2G
// nsIDOMWindowB2G
NS_DECL_NSIDOMWINDOWB2G
#endif // MOZ_B2G
#ifdef MOZ_WEBSPEECH
// nsISpeechSynthesisGetter
NS_DECL_NSISPEECHSYNTHESISGETTER
#endif // MOZ_WEBSPEECH
// nsIDOMWindowPerformance
NS_DECL_NSIDOMWINDOWPERFORMANCE
// nsIDOMJSWindow
NS_DECL_NSIDOMJSWINDOW
// nsIDOMEventTarget
NS_DECL_NSIDOMEVENTTARGET
virtual nsEventListenerManager*
GetExistingListenerManager() const MOZ_OVERRIDE;
virtual nsEventListenerManager*
GetOrCreateListenerManager() MOZ_OVERRIDE;
using mozilla::dom::EventTarget::RemoveEventListener;
virtual void AddEventListener(const nsAString& aType,
mozilla::dom::EventListener* aListener,
bool aUseCapture,
const mozilla::dom::Nullable<bool>& aWantsUntrusted,
mozilla::ErrorResult& aRv) MOZ_OVERRIDE;
virtual nsIDOMWindow* GetOwnerGlobal() MOZ_OVERRIDE
{
if (IsOuterWindow()) {
return this;
}
return GetOuterFromCurrentInner(this);
}
// nsITouchEventReceiver
NS_DECL_NSITOUCHEVENTRECEIVER
// nsIInlineEventHandlers
NS_DECL_NSIINLINEEVENTHANDLERS
// nsPIDOMWindow
virtual NS_HIDDEN_(nsPIDOMWindow*) GetPrivateRoot();
virtual NS_HIDDEN_(void) ActivateOrDeactivate(bool aActivate);
virtual NS_HIDDEN_(void) SetActive(bool aActive);
virtual NS_HIDDEN_(void) SetIsBackground(bool aIsBackground);
virtual NS_HIDDEN_(void) SetChromeEventHandler(mozilla::dom::EventTarget* aChromeEventHandler);
virtual NS_HIDDEN_(void) SetInitialPrincipalToSubject();
virtual NS_HIDDEN_(PopupControlState) PushPopupControlState(PopupControlState state, bool aForce) const;
virtual NS_HIDDEN_(void) PopPopupControlState(PopupControlState state) const;
virtual NS_HIDDEN_(PopupControlState) GetPopupControlState() const;
virtual already_AddRefed<nsISupports> SaveWindowState();
virtual NS_HIDDEN_(nsresult) RestoreWindowState(nsISupports *aState);
virtual NS_HIDDEN_(void) SuspendTimeouts(uint32_t aIncrease = 1,
bool aFreezeChildren = true);
virtual NS_HIDDEN_(nsresult) ResumeTimeouts(bool aThawChildren = true);
virtual NS_HIDDEN_(uint32_t) TimeoutSuspendCount();
virtual NS_HIDDEN_(nsresult) FireDelayedDOMEvents();
virtual NS_HIDDEN_(bool) IsFrozen() const
{
return mIsFrozen;
}
virtual NS_HIDDEN_(bool) WouldReuseInnerWindow(nsIDocument *aNewDocument);
virtual NS_HIDDEN_(void) SetDocShell(nsIDocShell* aDocShell);
virtual void DetachFromDocShell();
virtual NS_HIDDEN_(nsresult) SetNewDocument(nsIDocument *aDocument,
nsISupports *aState,
bool aForceReuseInnerWindow);
void DispatchDOMWindowCreated();
virtual NS_HIDDEN_(void) SetOpenerWindow(nsIDOMWindow* aOpener,
bool aOriginalOpener);
// Outer windows only.
virtual NS_HIDDEN_(void) EnsureSizeUpToDate();
virtual NS_HIDDEN_(void) EnterModalState();
virtual NS_HIDDEN_(void) LeaveModalState();
virtual NS_HIDDEN_(bool) CanClose();
virtual NS_HIDDEN_(nsresult) ForceClose();
virtual NS_HIDDEN_(void) MaybeUpdateTouchState();
virtual NS_HIDDEN_(void) UpdateTouchState();
virtual NS_HIDDEN_(bool) DispatchCustomEvent(const char *aEventName);
virtual NS_HIDDEN_(bool) DispatchResizeEvent(const nsIntSize& aSize);
virtual NS_HIDDEN_(void) RefreshCompartmentPrincipal();
virtual NS_HIDDEN_(nsresult) SetFullScreenInternal(bool aIsFullScreen, bool aRequireTrust);
virtual NS_HIDDEN_(void) SetHasGamepadEventListener(bool aHasGamepad = true);
// nsIInterfaceRequestor
NS_DECL_NSIINTERFACEREQUESTOR
// WebIDL interface.
uint32_t GetLength();
already_AddRefed<nsIDOMWindow> IndexedGetter(uint32_t aIndex, bool& aFound);
void GetSupportedNames(nsTArray<nsString>& aNames);
// Object Management
nsGlobalWindow(nsGlobalWindow *aOuterWindow);
static nsGlobalWindow *FromSupports(nsISupports *supports)
{
// Make sure this matches the casts we do in QueryInterface().
return (nsGlobalWindow *)(mozilla::dom::EventTarget *)supports;
}
static nsISupports *ToSupports(nsGlobalWindow *win)
{
// Make sure this matches the casts we do in QueryInterface().
return (nsISupports *)(mozilla::dom::EventTarget *)win;
}
static nsGlobalWindow *FromWrapper(nsIXPConnectWrappedNative *wrapper)
{
return FromSupports(wrapper->Native());
}
/**
* Wrap nsIDOMWindow::GetTop so we can overload the inline GetTop()
* implementation below. (nsIDOMWindow::GetTop simply calls
* nsIDOMWindow::GetRealTop().)
*/
nsresult GetTop(nsIDOMWindow **aWindow)
{
return nsIDOMWindow::GetTop(aWindow);
}
inline nsGlobalWindow *GetTop()
{
nsCOMPtr<nsIDOMWindow> top;
GetTop(getter_AddRefs(top));
if (top)
return static_cast<nsGlobalWindow *>(top.get());
return nullptr;
}
inline nsGlobalWindow* GetScriptableTop()
{
nsCOMPtr<nsIDOMWindow> top;
GetScriptableTop(getter_AddRefs(top));
if (top) {
return static_cast<nsGlobalWindow *>(top.get());
}
return nullptr;
}
already_AddRefed<nsIDOMWindow> GetChildWindow(const nsAString& aName);
// These return true if we've reached the state in this top level window
// where we ask the user if further dialogs should be blocked.
//
// DialogsAreBeingAbused must be called on the scriptable top inner window.
//
// ShouldPromptToBlockDialogs is implemented in terms of
// DialogsAreBeingAbused, and will get the scriptable top inner window
// automatically.
bool ShouldPromptToBlockDialogs();
bool DialogsAreBeingAbused();
// Ask the user if further dialogs should be blocked, if dialogs are currently
// being abused. This is used in the cases where we have no modifiable UI to
// show, in that case we show a separate dialog to ask this question.
bool ConfirmDialogIfNeeded();
// These functions are used for controlling and determining whether dialogs
// (alert, prompt, confirm) are currently allowed in this window.
void EnableDialogs();
void DisableDialogs();
bool AreDialogsEnabled();
virtual void SetHasAudioAvailableEventListeners();
nsIScriptContext *GetContextInternal()
{
if (mOuterWindow) {
return GetOuterWindowInternal()->mContext;
}
return mContext;
}
nsIScriptContext *GetScriptContextInternal(uint32_t aLangID)
{
NS_ASSERTION(aLangID == nsIProgrammingLanguage::JAVASCRIPT,
"We don't support this language ID");
if (mOuterWindow) {
return GetOuterWindowInternal()->mContext;
}
return mContext;
}
nsGlobalWindow *GetOuterWindowInternal()
{
return static_cast<nsGlobalWindow *>(GetOuterWindow());
}
nsGlobalWindow *GetCurrentInnerWindowInternal() const
{
return static_cast<nsGlobalWindow *>(mInnerWindow);
}
nsGlobalWindow *EnsureInnerWindowInternal()
{
return static_cast<nsGlobalWindow *>(EnsureInnerWindow());
}
bool IsCreatingInnerWindow() const
{
return mCreatingInnerWindow;
}
bool IsChromeWindow() const
{
return mIsChrome;
}
// GetScrollFrame does not flush. Callers should do it themselves as needed,
// depending on which info they actually want off the scrollable frame.
nsIScrollableFrame *GetScrollFrame();
nsresult Observe(nsISupports* aSubject, const char* aTopic,
const PRUnichar* aData);
void UnblockScriptedClosing();
static void Init();
static void ShutDown();
static void CleanupCachedXBLHandlers(nsGlobalWindow* aWindow);
static bool IsCallerChrome();
static void RunPendingTimeoutsRecursive(nsGlobalWindow *aTopWindow,
nsGlobalWindow *aWindow);
friend class WindowStateHolder;
NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsGlobalWindow,
nsIDOMEventTarget)
virtual NS_HIDDEN_(JSObject*)
GetCachedXBLPrototypeHandler(nsXBLPrototypeHandler* aKey);
virtual NS_HIDDEN_(void)
CacheXBLPrototypeHandler(nsXBLPrototypeHandler* aKey,
JS::Handle<JSObject*> aHandler);
virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod);
virtual void SetReadyForFocus();
virtual void PageHidden();
virtual nsresult DispatchAsyncHashchange(nsIURI *aOldURI, nsIURI *aNewURI);
virtual nsresult DispatchSyncPopState();
virtual void EnableDeviceSensor(uint32_t aType);
virtual void DisableDeviceSensor(uint32_t aType);
virtual void EnableTimeChangeNotifications();
virtual void DisableTimeChangeNotifications();
#ifdef MOZ_B2G
virtual void EnableNetworkEvent(uint32_t aType);
virtual void DisableNetworkEvent(uint32_t aType);
#endif // MOZ_B2G
virtual nsresult SetArguments(nsIArray *aArguments);
void MaybeForgiveSpamCount();
bool IsClosedOrClosing() {
return (mIsClosed ||
mInClose ||
mHavePendingClose ||
mCleanedUp);
}
static void FirePopupBlockedEvent(nsIDocument* aDoc,
nsIDOMWindow *aRequestingWindow, nsIURI *aPopupURI,
const nsAString &aPopupWindowName,
const nsAString &aPopupWindowFeatures);
virtual uint32_t GetSerial() {
return mSerial;
}
static nsGlobalWindow* GetOuterWindowWithId(uint64_t aWindowID) {
if (!sWindowsById) {
return nullptr;
}
nsGlobalWindow* outerWindow = sWindowsById->Get(aWindowID);
return outerWindow && !outerWindow->IsInnerWindow() ? outerWindow : nullptr;
}
static nsGlobalWindow* GetInnerWindowWithId(uint64_t aInnerWindowID) {
if (!sWindowsById) {
return nullptr;
}
nsGlobalWindow* innerWindow = sWindowsById->Get(aInnerWindowID);
return innerWindow && innerWindow->IsInnerWindow() ? innerWindow : nullptr;
}
static WindowByIdTable* GetWindowsTable() {
return sWindowsById;
}
void AddSizeOfIncludingThis(nsWindowSizes* aWindowSizes) const;
void UnmarkGrayTimers();
void AddEventTargetObject(nsDOMEventTargetHelper* aObject);
void RemoveEventTargetObject(nsDOMEventTargetHelper* aObject);
void NotifyIdleObserver(IdleObserverHolder* aIdleObserverHolder,
bool aCallOnidle);
nsresult HandleIdleActiveEvent();
bool ContainsIdleObserver(nsIIdleObserver* aIdleObserver, uint32_t timeInS);
void HandleIdleObserverCallback();
void AllowScriptsToClose()
{
mAllowScriptsToClose = true;
}
enum SlowScriptResponse {
ContinueSlowScript = 0,
AlwaysContinueSlowScript,
KillSlowScript
};
SlowScriptResponse ShowSlowScriptDialog();
#ifdef MOZ_GAMEPAD
void AddGamepad(uint32_t aIndex, mozilla::dom::Gamepad* aGamepad);
void RemoveGamepad(uint32_t aIndex);
void GetGamepads(nsTArray<nsRefPtr<mozilla::dom::Gamepad> >& aGamepads);
already_AddRefed<mozilla::dom::Gamepad> GetGamepad(uint32_t aIndex);
void SetHasSeenGamepadInput(bool aHasSeen);
bool HasSeenGamepadInput();
void SyncGamepadState();
static PLDHashOperator EnumGamepadsForSync(const uint32_t& aKey,
mozilla::dom::Gamepad* aData,
void* aUserArg);
static PLDHashOperator EnumGamepadsForGet(const uint32_t& aKey,
mozilla::dom::Gamepad* aData,
void* aUserArg);
#endif
// Enable/disable updates for gamepad input.
void EnableGamepadUpdates();
void DisableGamepadUpdates();
#define EVENT(name_, id_, type_, struct_) \
mozilla::dom::EventHandlerNonNull* GetOn##name_() \
{ \
nsEventListenerManager *elm = GetExistingListenerManager(); \
return elm ? elm->GetEventHandler(nsGkAtoms::on##name_, EmptyString()) \
: nullptr; \
} \
void SetOn##name_(mozilla::dom::EventHandlerNonNull* handler) \
{ \
nsEventListenerManager *elm = GetOrCreateListenerManager(); \
if (elm) { \
elm->SetEventHandler(nsGkAtoms::on##name_, EmptyString(), handler); \
} \
}
#define ERROR_EVENT(name_, id_, type_, struct_) \
mozilla::dom::OnErrorEventHandlerNonNull* GetOn##name_() \
{ \
nsEventListenerManager *elm = GetExistingListenerManager(); \
return elm ? elm->GetOnErrorEventHandler() : nullptr; \
} \
void SetOn##name_(mozilla::dom::OnErrorEventHandlerNonNull* handler) \
{ \
nsEventListenerManager *elm = GetOrCreateListenerManager(); \
if (elm) { \
elm->SetEventHandler(handler); \
} \
}
#define BEFOREUNLOAD_EVENT(name_, id_, type_, struct_) \
mozilla::dom::OnBeforeUnloadEventHandlerNonNull* GetOn##name_() \
{ \
nsEventListenerManager *elm = GetExistingListenerManager(); \
return elm ? elm->GetOnBeforeUnloadEventHandler() : nullptr; \
} \
void SetOn##name_(mozilla::dom::OnBeforeUnloadEventHandlerNonNull* handler) \
{ \
nsEventListenerManager *elm = GetOrCreateListenerManager(); \
if (elm) { \
elm->SetEventHandler(handler); \
} \
}
#define WINDOW_ONLY_EVENT EVENT
#define TOUCH_EVENT EVENT
#include "nsEventNameList.h"
#undef TOUCH_EVENT
#undef WINDOW_ONLY_EVENT
#undef BEFOREUNLOAD_EVENT
#undef ERROR_EVENT
#undef EVENT
#ifdef MOZ_WEBSPEECH
mozilla::dom::SpeechSynthesis* GetSpeechSynthesisInternal();
#endif
mozilla::dom::BarProp* GetScrollbars();
protected:
// Array of idle observers that are notified of idle events.
nsTObserverArray<IdleObserverHolder> mIdleObservers;
// Idle timer used for function callbacks to notify idle observers.
nsCOMPtr<nsITimer> mIdleTimer;
// Idle fuzz time added to idle timer callbacks.
uint32_t mIdleFuzzFactor;
// Index in mArrayIdleObservers
// Next idle observer to notify user idle status
int32_t mIdleCallbackIndex;
// If false then the topic is "active"
// If true then the topic is "idle"
bool mCurrentlyIdle;
// Set to true when a fuzz time needs to be applied
// to active notifications to the idle observer.
bool mAddActiveEventFuzzTime;
nsCOMPtr <nsIIdleService> mIdleService;
nsCOMPtr <nsIDOMMozWakeLock> mWakeLock;
static bool sIdleObserversAPIFuzzTimeDisabled;
friend class HashchangeCallback;
friend class mozilla::dom::BarProp;
// Object Management
virtual ~nsGlobalWindow();
void CleanUp();
void ClearControllers();
nsresult FinalClose();
inline void MaybeClearInnerWindow(nsGlobalWindow* aExpectedInner)
{
if(mInnerWindow == aExpectedInner) {
mInnerWindow = nullptr;
}
}
void FreeInnerObjects();
JSObject *CallerGlobal();
nsGlobalWindow *CallerInnerWindow();
// Only to be called on an inner window.
// aDocument must not be null.
void InnerSetNewDocument(nsIDocument* aDocument);
nsresult DefineArgumentsProperty(nsIArray *aArguments);
// Get the parent, returns null if this is a toplevel window
nsIDOMWindow* GetParentInternal();
// popup tracking
bool IsPopupSpamWindow()
{
if (IsInnerWindow() && !mOuterWindow) {
return false;
}
return GetOuterWindowInternal()->mIsPopupSpam;
}
void SetPopupSpamWindow(bool aPopup)
{
if (IsInnerWindow() && !mOuterWindow) {
NS_ERROR("SetPopupSpamWindow() called on inner window w/o an outer!");
return;
}
GetOuterWindowInternal()->mIsPopupSpam = aPopup;
}
// Window Control Functions
virtual nsresult
OpenNoNavigate(const nsAString& aUrl,
const nsAString& aName,
const nsAString& aOptions,
nsIDOMWindow **_retval);
/**
* @param aUrl the URL we intend to load into the window. If aNavigate is
* true, we'll actually load this URL into the window. Otherwise,
* aUrl is advisory; OpenInternal will not load the URL into the
* new window.
*
* @param aName the name to use for the new window
*
* @param aOptions the window options to use for the new window
*
* @param aDialog true when called from variants of OpenDialog. If this is
* true, this method will skip popup blocking checks. The aDialog
* argument is passed on to the window watcher.
*
* @param aCalledNoScript true when called via the [noscript] open()
* and openDialog() methods. When this is true, we do NOT want to use
* the JS stack for things like caller determination.
*
* @param aDoJSFixups true when this is the content-accessible JS version of
* window opening. When true, popups do not cause us to throw, we save
* the caller's principal in the new window for later consumption, and
* we make sure that there is a document in the newly-opened window.
* Note that this last will only be done if the newly-opened window is
* non-chrome.
*
* @param aNavigate true if we should navigate to the provided URL, false
* otherwise. When aNavigate is false, we also skip our can-load
* security check, on the assumption that whoever *actually* loads this
* page will do their own security check.
*
* @param argv The arguments to pass to the new window. The first
* three args, if present, will be aUrl, aName, and aOptions. So this
* param only matters if there are more than 3 arguments.
*
* @param argc The number of arguments in argv.
*
* @param aExtraArgument Another way to pass arguments in. This is mutually
* exclusive with the argv/argc approach.
*
* @param aJSCallerContext The calling script's context. This must be null
* when aCalledNoScript is true.
*
* @param aReturn [out] The window that was opened, if any.
*/
NS_HIDDEN_(nsresult) OpenInternal(const nsAString& aUrl,
const nsAString& aName,
const nsAString& aOptions,
bool aDialog,
bool aContentModal,
bool aCalledNoScript,
bool aDoJSFixups,
bool aNavigate,
nsIArray *argv,
nsISupports *aExtraArgument,
nsIPrincipal *aCalleePrincipal,
JSContext *aJSCallerContext,
nsIDOMWindow **aReturn);
// Timeout Functions
// Language agnostic timeout function (all args passed).
// |interval| is in milliseconds.
nsresult SetTimeoutOrInterval(nsIScriptTimeoutHandler *aHandler,
int32_t interval,
bool aIsInterval, int32_t *aReturn);
nsresult ClearTimeoutOrInterval(int32_t aTimerID);
// JS specific timeout functions (JS args grabbed from context).
nsresult SetTimeoutOrInterval(bool aIsInterval, int32_t* aReturn);
nsresult ResetTimersForNonBackgroundWindow();
// The timeout implementation functions.
void RunTimeout(nsTimeout *aTimeout);
void RunTimeout() { RunTimeout(nullptr); }
// Return true if |aTimeout| was cleared while its handler ran.
bool RunTimeoutHandler(nsTimeout* aTimeout, nsIScriptContext* aScx);
// Return true if |aTimeout| needs to be reinserted into the timeout list.
bool RescheduleTimeout(nsTimeout* aTimeout, const TimeStamp& now,
bool aRunningPendingTimeouts);
void ClearAllTimeouts();
// Insert aTimeout into the list, before all timeouts that would
// fire after it, but no earlier than mTimeoutInsertionPoint, if any.
void InsertTimeoutIntoList(nsTimeout *aTimeout);
static void TimerCallback(nsITimer *aTimer, void *aClosure);
// Helper Functions
already_AddRefed<nsIDocShellTreeOwner> GetTreeOwner();
already_AddRefed<nsIBaseWindow> GetTreeOwnerWindow();
already_AddRefed<nsIWebBrowserChrome> GetWebBrowserChrome();
nsresult SecurityCheckURL(const char *aURL);
nsresult BuildURIfromBase(const char *aURL,
nsIURI **aBuiltURI,
bool *aFreeSecurityPass, JSContext **aCXused);
bool PopupWhitelisted();
PopupControlState RevisePopupAbuseLevel(PopupControlState);
void FireAbuseEvents(bool aBlocked, bool aWindow,
const nsAString &aPopupURL,
const nsAString &aPopupWindowName,
const nsAString &aPopupWindowFeatures);
void FireOfflineStatusEvent();
nsresult ScheduleNextIdleObserverCallback();
uint32_t GetFuzzTimeMS();
nsresult ScheduleActiveTimerCallback();
uint32_t FindInsertionIndex(IdleObserverHolder* aIdleObserver);
virtual nsresult RegisterIdleObserver(nsIIdleObserver* aIdleObserverPtr);
nsresult FindIndexOfElementToRemove(nsIIdleObserver* aIdleObserver,
int32_t* aRemoveElementIndex);
virtual nsresult UnregisterIdleObserver(nsIIdleObserver* aIdleObserverPtr);
nsresult FireHashchange(const nsAString &aOldURL, const nsAString &aNewURL);
void FlushPendingNotifications(mozFlushType aType);
void EnsureReflowFlushAndPaint();
void CheckSecurityWidthAndHeight(int32_t* width, int32_t* height);
void CheckSecurityLeftAndTop(int32_t* left, int32_t* top);
// Arguments to this function should have values in app units
void SetCSSViewportWidthAndHeight(nscoord width, nscoord height);
// Arguments to this function should have values in device pixels
nsresult SetDocShellWidthAndHeight(int32_t width, int32_t height);
static bool CanSetProperty(const char *aPrefName);
static void MakeScriptDialogTitle(nsAString &aOutTitle);
bool CanMoveResizeWindows();
bool GetBlurSuppression();
// If aDoFlush is true, we'll flush our own layout; otherwise we'll try to
// just flush our parent and only flush ourselves if we think we need to.
nsresult GetScrollXY(int32_t* aScrollX, int32_t* aScrollY,
bool aDoFlush);
nsresult GetScrollMaxXY(int32_t* aScrollMaxX, int32_t* aScrollMaxY);
// Outer windows only.
nsresult GetInnerSize(mozilla::CSSIntSize& aSize);
nsresult GetOuterSize(nsIntSize* aSizeCSSPixels);
nsresult SetOuterSize(int32_t aLengthCSSPixels, bool aIsWidth);
nsRect GetInnerScreenRect();
void ScrollTo(const mozilla::CSSIntPoint& aScroll);
bool IsFrame()
{
return GetParentInternal() != nullptr;
}
// If aLookForCallerOnJSStack is true, this method will look at the JS stack
// to determine who the caller is. If it's false, it'll use |this| as the
// caller.
bool WindowExists(const nsAString& aName, bool aLookForCallerOnJSStack);
already_AddRefed<nsIWidget> GetMainWidget();
nsIWidget* GetNearestWidget();
void Freeze()
{
NS_ASSERTION(!IsFrozen(), "Double-freezing?");
mIsFrozen = true;
NotifyDOMWindowFrozen(this);
}
void Thaw()
{
mIsFrozen = false;
NotifyDOMWindowThawed(this);
}
bool IsInModalState();
// Convenience functions for the many methods that need to scale
// from device to CSS pixels or vice versa. Note: if a presentation
// context is not available, they will assume a 1:1 ratio.
int32_t DevToCSSIntPixels(int32_t px);
int32_t CSSToDevIntPixels(int32_t px);
nsIntSize DevToCSSIntPixels(nsIntSize px);
nsIntSize CSSToDevIntPixels(nsIntSize px);
virtual void SetFocusedNode(nsIContent* aNode,
uint32_t aFocusMethod = 0,
bool aNeedsFocus = false);
virtual uint32_t GetFocusMethod();
virtual bool ShouldShowFocusRing();
virtual void SetKeyboardIndicators(UIStateChangeType aShowAccelerators,
UIStateChangeType aShowFocusRings);
virtual void GetKeyboardIndicators(bool* aShowAccelerators,
bool* aShowFocusRings);
void UpdateCanvasFocus(bool aFocusChanged, nsIContent* aNewContent);
public:
virtual already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() MOZ_OVERRIDE;
protected:
static void NotifyDOMWindowDestroyed(nsGlobalWindow* aWindow);
void NotifyWindowIDDestroyed(const char* aTopic);
static void NotifyDOMWindowFrozen(nsGlobalWindow* aWindow);
static void NotifyDOMWindowThawed(nsGlobalWindow* aWindow);
void ClearStatus();
virtual void UpdateParentTarget();
bool GetIsTabModalPromptAllowed();
inline int32_t DOMMinTimeoutValue() const;
nsresult CreateOuterObject(nsGlobalWindow* aNewInner);
nsresult SetOuterObject(JSContext* aCx, JS::Handle<JSObject*> aOuterObject);
nsresult CloneStorageEvent(const nsAString& aType,
nsCOMPtr<nsIDOMStorageEvent>& aEvent);
// Implements Get{Real,Scriptable}Top.
nsresult GetTopImpl(nsIDOMWindow **aWindow, bool aScriptable);
// Outer windows only.
nsDOMWindowList* GetWindowList();
// Helper for getComputedStyle and getDefaultComputedStyle
nsresult GetComputedStyleHelper(nsIDOMElement* aElt,
const nsAString& aPseudoElt,
bool aDefaultStylesOnly,
nsIDOMCSSStyleDeclaration** aReturn);
void PreloadLocalStorage();
nsresult RequestAnimationFrame(const nsIDocument::FrameRequestCallbackHolder& aCallback,
int32_t* aHandle);
// When adding new member variables, be careful not to create cycles
// through JavaScript. If there is any chance that a member variable
// could own objects that are implemented in JavaScript, then those
// objects will keep the global object (this object) alive. To prevent
// these cycles, ownership of such members must be released in
// |CleanUp| and |DetachFromDocShell|.
// This member is also used on both inner and outer windows, but
// for slightly different purposes. On inner windows it means the
// inner window is held onto by session history and should not
// change. On outer windows it means that the window is in a state
// where we don't want to force creation of a new inner window since
// we're in the middle of doing just that.
bool mIsFrozen : 1;
// These members are only used on outer window objects. Make sure
// you never set any of these on an inner object!
bool mFullScreen : 1;
bool mIsClosed : 1;
bool mInClose : 1;
// mHavePendingClose means we've got a termination function set to
// close us when the JS stops executing or that we have a close
// event posted. If this is set, just ignore window.close() calls.
bool mHavePendingClose : 1;
bool mHadOriginalOpener : 1;
bool mIsPopupSpam : 1;
// Indicates whether scripts are allowed to close this window.
bool mBlockScriptedClosingFlag : 1;
// Track what sorts of events we need to fire when thawed
bool mFireOfflineStatusChangeEventOnThaw : 1;
bool mNotifyIdleObserversIdleOnThaw : 1;
bool mNotifyIdleObserversActiveOnThaw : 1;
// Indicates whether we're in the middle of creating an initializing
// a new inner window object.
bool mCreatingInnerWindow : 1;
// Fast way to tell if this is a chrome window (without having to QI).
bool mIsChrome : 1;
// Hack to indicate whether a chrome window needs its message manager
// to be disconnected, since clean up code is shared in the global
// window superclass.
bool mCleanMessageManager : 1;
// Indicates that the current document has never received a document focus
// event.
bool mNeedsFocus : 1;
bool mHasFocus : 1;
// whether to show keyboard accelerators
bool mShowAccelerators : 1;
// whether to show focus rings
bool mShowFocusRings : 1;
// when true, show focus rings for the current focused content only.
// This will be reset when another element is focused
bool mShowFocusRingForContent : 1;
// true if tab navigation has occurred for this window. Focus rings
// should be displayed.
bool mFocusByKeyOccurred : 1;
// Indicates whether this window wants gamepad input events
bool mHasGamepad : 1;
#ifdef MOZ_GAMEPAD
nsRefPtrHashtable<nsUint32HashKey, mozilla::dom::Gamepad> mGamepads;
bool mHasSeenGamepadInput;
#endif
// whether we've sent the destroy notification for our window id
bool mNotifiedIDDestroyed : 1;
// whether scripts may close the window,
// even if "dom.allow_scripts_to_close_windows" is false.
bool mAllowScriptsToClose : 1;
nsCOMPtr<nsIScriptContext> mContext;
nsWeakPtr mOpener;
nsCOMPtr<nsIControllers> mControllers;
// For |window.arguments|, via |openDialog|.
nsCOMPtr<nsIArray> mArguments;
// For |window.dialogArguments|, via |showModalDialog|.
nsRefPtr<DialogValueHolder> mDialogArguments;
nsRefPtr<Navigator> mNavigator;
nsRefPtr<nsScreen> mScreen;
nsRefPtr<nsDOMWindowList> mFrames;
nsRefPtr<mozilla::dom::BarProp> mMenubar;
nsRefPtr<mozilla::dom::BarProp> mToolbar;
nsRefPtr<mozilla::dom::BarProp> mLocationbar;
nsRefPtr<mozilla::dom::BarProp> mPersonalbar;
nsRefPtr<mozilla::dom::BarProp> mStatusbar;
nsRefPtr<mozilla::dom::BarProp> mScrollbars;
nsRefPtr<nsDOMWindowUtils> mWindowUtils;
nsString mStatus;
nsString mDefaultStatus;
nsGlobalWindowObserver* mObserver;
nsCOMPtr<nsIDOMCrypto> mCrypto;
nsCOMPtr<nsIDOMStorage> mLocalStorage;
nsCOMPtr<nsIDOMStorage> mSessionStorage;
nsCOMPtr<nsIXPConnectJSObjectHolder> mInnerWindowHolder;
// These member variable are used only on inner windows.
nsRefPtr<nsEventListenerManager> mListenerManager;
// mTimeouts is generally sorted by mWhen, unless mTimeoutInsertionPoint is
// non-null. In that case, the dummy timeout pointed to by
// mTimeoutInsertionPoint may have a later mWhen than some of the timeouts
// that come after it.
mozilla::LinkedList<nsTimeout> mTimeouts;
// If mTimeoutInsertionPoint is non-null, insertions should happen after it.
// This is a dummy timeout at the moment; if that ever changes, the logic in
// ResetTimersForNonBackgroundWindow needs to change.
nsTimeout* mTimeoutInsertionPoint;
uint32_t mTimeoutPublicIdCounter;
uint32_t mTimeoutFiringDepth;
nsRefPtr<nsLocation> mLocation;
nsRefPtr<nsHistory> mHistory;
// These member variables are used on both inner and the outer windows.
nsCOMPtr<nsIPrincipal> mDocumentPrincipal;
// The JS global object. Global objects are always allocated tenured.
JS::TenuredHeap<JSObject*> mJSObject;
typedef nsCOMArray<nsIDOMStorageEvent> nsDOMStorageEventArray;
nsDOMStorageEventArray mPendingStorageEvents;
uint32_t mTimeoutsSuspendDepth;
// the method that was used to focus mFocusedNode
uint32_t mFocusMethod;
uint32_t mSerial;
#ifdef DEBUG
bool mSetOpenerWindowCalled;
nsCOMPtr<nsIURI> mLastOpenedURI;
#endif
#ifdef MOZ_B2G
bool mNetworkUploadObserverEnabled;
bool mNetworkDownloadObserverEnabled;
#endif // MOZ_B2G
bool mCleanedUp;
nsCOMPtr<nsIDOMOfflineResourceList> mApplicationCache;
nsAutoPtr<nsJSThingHashtable<nsPtrHashKey<nsXBLPrototypeHandler>, JSObject*> > mCachedXBLPrototypeHandlers;
nsCOMPtr<nsIDocument> mSuspendedDoc;
nsRefPtr<mozilla::dom::indexedDB::IDBFactory> mIndexedDB;
// This counts the number of windows that have been opened in rapid succession
// (i.e. within dom.successive_dialog_time_limit of each other). It is reset
// to 0 once a dialog is opened after dom.successive_dialog_time_limit seconds
// have elapsed without any other dialogs.
uint32_t mDialogAbuseCount;
// This holds the time when the last modal dialog was shown. If more than
// MAX_DIALOG_LIMIT dialogs are shown within the time span defined by
// dom.successive_dialog_time_limit, we show a checkbox or confirmation prompt
// to allow disabling of further dialogs from this window.
TimeStamp mLastDialogQuitTime;
// This flag keeps track of whether dialogs are
// currently enabled on this window.
bool mAreDialogsEnabled;
nsTHashtable<nsPtrHashKey<nsDOMEventTargetHelper> > mEventTargetObjects;
nsTArray<uint32_t> mEnabledSensors;
#ifdef MOZ_WEBSPEECH
// mSpeechSynthesis is only used on inner windows.
nsRefPtr<mozilla::dom::SpeechSynthesis> mSpeechSynthesis;
#endif
friend class nsDOMScriptableHelper;
friend class nsDOMWindowUtils;
friend class PostMessageEvent;
friend class DesktopNotification;
static WindowByIdTable* sWindowsById;
static bool sWarnedAboutWindowInternal;
};
/*
* nsGlobalChromeWindow inherits from nsGlobalWindow. It is the global
* object created for a Chrome Window only.
*/
class nsGlobalChromeWindow : public nsGlobalWindow,
public nsIDOMChromeWindow
{
public:
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// nsIDOMChromeWindow interface
NS_DECL_NSIDOMCHROMEWINDOW
nsGlobalChromeWindow(nsGlobalWindow *aOuterWindow)
: nsGlobalWindow(aOuterWindow)
{
mIsChrome = true;
mCleanMessageManager = true;
}
~nsGlobalChromeWindow()
{
NS_ABORT_IF_FALSE(mCleanMessageManager,
"chrome windows may always disconnect the msg manager");
if (mMessageManager) {
static_cast<nsFrameMessageManager *>(
mMessageManager.get())->Disconnect();
}
mCleanMessageManager = false;
}
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsGlobalChromeWindow,
nsGlobalWindow)
nsCOMPtr<nsIBrowserDOMWindow> mBrowserDOMWindow;
nsCOMPtr<nsIMessageBroadcaster> mMessageManager;
};
/*
* nsGlobalModalWindow inherits from nsGlobalWindow. It is the global
* object created for a modal content windows only (i.e. not modal
* chrome dialogs).
*/
class nsGlobalModalWindow : public nsGlobalWindow,
public nsIDOMModalContentWindow
{
public:
nsGlobalModalWindow(nsGlobalWindow *aOuterWindow)
: nsGlobalWindow(aOuterWindow)
{
mIsModalContentWindow = true;
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIDOMMODALCONTENTWINDOW
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsGlobalModalWindow, nsGlobalWindow)
protected:
// For use by outer windows only.
nsRefPtr<DialogValueHolder> mReturnValue;
};
/* factory function */
inline already_AddRefed<nsGlobalWindow>
NS_NewScriptGlobalObject(bool aIsChrome, bool aIsModalContentWindow)
{
nsRefPtr<nsGlobalWindow> global;
if (aIsChrome) {
global = new nsGlobalChromeWindow(nullptr);
} else if (aIsModalContentWindow) {
global = new nsGlobalModalWindow(nullptr);
} else {
global = new nsGlobalWindow(nullptr);
}
return global.forget();
}
#endif /* nsGlobalWindow_h___ */
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