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gecko/dom/base/nsDOMClassInfo.cpp
Jason Orendorff f43c96af4d Bug 1113369, part 3 - [[DefineOwnProperty]] ObjectOpResult support. r=Waldo, r=bz in dom, r=dvander in js/ipc, r=bholley in js/xpconnect. 
Add an ObjectOpResult out-param for DefineProperty functions everywhere. We leave a few js::DefineProperty() convenience functions with no *result out-param. These have strict behavior: that is, they automatically check the result and throw if it is false. In bug 1125624 these strict signatures may end up being called DefinePropertyOrThrow, as that is what the spec calls it.
2015-01-30 11:37:07 -06:00

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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=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 "mozilla/ArrayUtils.h"
#ifdef XP_WIN
#undef GetClassName
#endif
// JavaScript includes
#include "jsapi.h"
#include "jsfriendapi.h"
#include "WrapperFactory.h"
#include "AccessCheck.h"
#include "XrayWrapper.h"
#include "xpcpublic.h"
#include "xpcprivate.h"
#include "XPCWrapper.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/RegisterBindings.h"
#include "nscore.h"
#include "nsDOMClassInfo.h"
#include "nsCRT.h"
#include "nsCRTGlue.h"
#include "nsICategoryManager.h"
#include "nsIComponentRegistrar.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsIXPConnect.h"
#include "xptcall.h"
#include "nsTArray.h"
// General helper includes
#include "nsGlobalWindow.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMEvent.h"
#include "nsIDOMEventListener.h"
#include "nsContentUtils.h"
#include "nsIDOMGlobalPropertyInitializer.h"
#include "mozilla/Attributes.h"
#include "mozilla/Telemetry.h"
// Window scriptable helper includes
#include "nsScriptNameSpaceManager.h"
// DOM base includes
#include "nsIDOMWindow.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMConstructor.h"
// DOM core includes
#include "nsError.h"
#include "nsIDOMXULButtonElement.h"
#include "nsIDOMXULCheckboxElement.h"
#include "nsIDOMXULPopupElement.h"
// Event related includes
#include "nsIDOMEventTarget.h"
// CSS related includes
#include "nsCSSRules.h"
#include "nsIDOMCSSRule.h"
#include "nsAutoPtr.h"
#include "nsMemory.h"
// includes needed for the prototype chain interfaces
#include "nsIDOMCSSCharsetRule.h"
#include "nsIDOMCSSImportRule.h"
#include "nsIDOMCSSMediaRule.h"
#include "nsIDOMCSSFontFaceRule.h"
#include "nsIDOMCSSMozDocumentRule.h"
#include "nsIDOMCSSSupportsRule.h"
#include "nsIDOMMozCSSKeyframeRule.h"
#include "nsIDOMMozCSSKeyframesRule.h"
#include "nsIDOMCSSCounterStyleRule.h"
#include "nsIDOMCSSPageRule.h"
#include "nsIDOMCSSStyleRule.h"
#include "nsIDOMXULCommandDispatcher.h"
#include "nsIControllers.h"
#ifdef MOZ_XUL
#include "nsITreeSelection.h"
#include "nsITreeContentView.h"
#include "nsITreeView.h"
#include "nsIXULTemplateBuilder.h"
#endif
#include "nsIEventListenerService.h"
#include "nsIMessageManager.h"
#include "mozilla/dom/TouchEvent.h"
#include "nsWrapperCacheInlines.h"
#include "mozilla/dom/HTMLCollectionBinding.h"
#include "nsIDOMMozSmsMessage.h"
#include "nsIDOMMozMmsMessage.h"
#include "nsIDOMMozMobileMessageThread.h"
#ifdef MOZ_B2G_FM
#include "FMRadio.h"
#endif
#include "nsDebug.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/Likely.h"
#include "nsIInterfaceInfoManager.h"
#ifdef MOZ_TIME_MANAGER
#include "TimeManager.h"
#endif
using namespace mozilla;
using namespace mozilla::dom;
static NS_DEFINE_CID(kDOMSOF_CID, NS_DOM_SCRIPT_OBJECT_FACTORY_CID);
// NOTE: DEFAULT_SCRIPTABLE_FLAGS and DOM_DEFAULT_SCRIPTABLE_FLAGS
// are defined in nsIDOMClassInfo.h.
#define ARRAY_SCRIPTABLE_FLAGS \
(DOM_DEFAULT_SCRIPTABLE_FLAGS | \
nsIXPCScriptable::WANT_GETPROPERTY | \
nsIXPCScriptable::WANT_ENUMERATE)
#define EVENTTARGET_SCRIPTABLE_FLAGS \
(DOM_DEFAULT_SCRIPTABLE_FLAGS | \
nsIXPCScriptable::WANT_ADDPROPERTY)
#define DOMCLASSINFO_STANDARD_FLAGS \
(nsIClassInfo::MAIN_THREAD_ONLY | \
nsIClassInfo::DOM_OBJECT | \
nsIClassInfo::SINGLETON_CLASSINFO)
#ifdef DEBUG
#define NS_DEFINE_CLASSINFO_DATA_DEBUG(_class) \
eDOMClassInfo_##_class##_id,
#else
#define NS_DEFINE_CLASSINFO_DATA_DEBUG(_class) \
// nothing
#endif
#define NS_DEFINE_CLASSINFO_DATA_HELPER(_class, _helper, _flags, \
_chromeOnly, _allowXBL) \
{ #_class, \
nullptr, \
{ _helper::doCreate }, \
nullptr, \
nullptr, \
nullptr, \
_flags, \
true, \
_chromeOnly, \
_allowXBL, \
false, \
NS_DEFINE_CLASSINFO_DATA_DEBUG(_class) \
},
#define NS_DEFINE_CLASSINFO_DATA(_class, _helper, _flags) \
NS_DEFINE_CLASSINFO_DATA_HELPER(_class, _helper, _flags, false, false)
#define NS_DEFINE_CHROME_ONLY_CLASSINFO_DATA(_class, _helper, _flags) \
NS_DEFINE_CLASSINFO_DATA_HELPER(_class, _helper, _flags, true, false)
#define NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(_class, _helper, _flags) \
NS_DEFINE_CLASSINFO_DATA_HELPER(_class, _helper, _flags, true, true)
// This list of NS_DEFINE_CLASSINFO_DATA macros is what gives the DOM
// classes their correct behavior when used through XPConnect. The
// arguments that are passed to NS_DEFINE_CLASSINFO_DATA are
//
// 1. Class name as it should appear in JavaScript, this name is also
// used to find the id of the class in nsDOMClassInfo
// (i.e. e<classname>_id)
// 2. Scriptable helper class
// 3. nsIClassInfo/nsIXPCScriptable flags (i.e. for GetScriptableFlags)
static nsDOMClassInfoData sClassInfoData[] = {
// Base classes
NS_DEFINE_CLASSINFO_DATA(DOMPrototype, nsDOMConstructorSH,
DOM_BASE_SCRIPTABLE_FLAGS |
nsIXPCScriptable::WANT_PRECREATE |
nsIXPCScriptable::WANT_RESOLVE |
nsIXPCScriptable::WANT_HASINSTANCE |
nsIXPCScriptable::DONT_ENUM_QUERY_INTERFACE)
NS_DEFINE_CLASSINFO_DATA(DOMConstructor, nsDOMConstructorSH,
DOM_BASE_SCRIPTABLE_FLAGS |
nsIXPCScriptable::WANT_PRECREATE |
nsIXPCScriptable::WANT_RESOLVE |
nsIXPCScriptable::WANT_HASINSTANCE |
nsIXPCScriptable::WANT_CALL |
nsIXPCScriptable::WANT_CONSTRUCT |
nsIXPCScriptable::DONT_ENUM_QUERY_INTERFACE)
// Misc Core related classes
// CSS classes
NS_DEFINE_CLASSINFO_DATA(CSSStyleRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSCharsetRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSImportRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSMediaRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSNameSpaceRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
// XUL classes
#ifdef MOZ_XUL
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULCommandDispatcher, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
#endif
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULControllers, nsNonDOMObjectSH,
DEFAULT_SCRIPTABLE_FLAGS)
#ifdef MOZ_XUL
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(TreeSelection, nsDOMGenericSH,
DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(TreeContentView, nsDOMGenericSH,
DEFAULT_SCRIPTABLE_FLAGS)
#endif
#ifdef MOZ_XUL
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULTemplateBuilder, nsDOMGenericSH,
DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULTreeBuilder, nsDOMGenericSH,
DEFAULT_SCRIPTABLE_FLAGS)
#endif
NS_DEFINE_CLASSINFO_DATA(CSSMozDocumentRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSSupportsRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(MozSmsMessage, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(MozMmsMessage, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(MozMobileMessageThread, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSFontFaceRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_ONLY_CLASSINFO_DATA(ContentFrameMessageManager,
nsMessageManagerSH<nsEventTargetSH>,
DOM_DEFAULT_SCRIPTABLE_FLAGS |
nsIXPCScriptable::WANT_ENUMERATE |
nsIXPCScriptable::IS_GLOBAL_OBJECT)
NS_DEFINE_CHROME_ONLY_CLASSINFO_DATA(ContentProcessMessageManager,
nsMessageManagerSH<nsDOMGenericSH>,
DOM_DEFAULT_SCRIPTABLE_FLAGS |
nsIXPCScriptable::WANT_ENUMERATE |
nsIXPCScriptable::IS_GLOBAL_OBJECT)
NS_DEFINE_CHROME_ONLY_CLASSINFO_DATA(ChromeMessageBroadcaster, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_ONLY_CLASSINFO_DATA(ChromeMessageSender, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(MozCSSKeyframeRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(MozCSSKeyframesRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSCounterStyleRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSPageRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CLASSINFO_DATA(CSSFontFeatureValuesRule, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULControlElement, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULLabeledControlElement, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULButtonElement, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULCheckboxElement, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
NS_DEFINE_CHROME_XBL_CLASSINFO_DATA(XULPopupElement, nsDOMGenericSH,
DOM_DEFAULT_SCRIPTABLE_FLAGS)
};
nsIXPConnect *nsDOMClassInfo::sXPConnect = nullptr;
bool nsDOMClassInfo::sIsInitialized = false;
jsid nsDOMClassInfo::sConstructor_id = JSID_VOID;
jsid nsDOMClassInfo::sWrappedJSObject_id = JSID_VOID;
static const JSClass *sObjectClass = nullptr;
/**
* Set our JSClass pointer for the Object class
*/
static void
FindObjectClass(JSContext* cx, JSObject* aGlobalObject)
{
NS_ASSERTION(!sObjectClass,
"Double set of sObjectClass");
JS::Rooted<JSObject*> obj(cx), proto(cx, aGlobalObject);
do {
obj = proto;
js::GetObjectProto(cx, obj, &proto);
} while (proto);
sObjectClass = js::GetObjectJSClass(obj);
}
// Helper to handle torn-down inner windows.
static inline nsresult
SetParentToWindow(nsGlobalWindow *win, JSObject **parent)
{
MOZ_ASSERT(win);
MOZ_ASSERT(win->IsInnerWindow());
*parent = win->FastGetGlobalJSObject();
if (MOZ_UNLIKELY(!*parent)) {
// The inner window has been torn down. The scope is dying, so don't create
// any new wrappers.
return NS_ERROR_FAILURE;
}
return NS_OK;
}
// static
nsISupports *
nsDOMClassInfo::GetNative(nsIXPConnectWrappedNative *wrapper, JSObject *obj)
{
return wrapper ? wrapper->Native() : static_cast<nsISupports*>(js::GetObjectPrivate(obj));
}
nsresult
nsDOMClassInfo::DefineStaticJSVals(JSContext *cx)
{
#define SET_JSID_TO_STRING(_id, _cx, _str) \
if (JSString *str = ::JS_InternString(_cx, _str)) \
_id = INTERNED_STRING_TO_JSID(_cx, str); \
else \
return NS_ERROR_OUT_OF_MEMORY;
SET_JSID_TO_STRING(sConstructor_id, cx, "constructor");
SET_JSID_TO_STRING(sWrappedJSObject_id, cx, "wrappedJSObject");
return NS_OK;
}
// static
bool
nsDOMClassInfo::ObjectIsNativeWrapper(JSContext* cx, JSObject* obj)
{
return xpc::WrapperFactory::IsXrayWrapper(obj) &&
xpc::AccessCheck::wrapperSubsumes(obj);
}
nsDOMClassInfo::nsDOMClassInfo(nsDOMClassInfoData* aData) : mData(aData)
{
}
nsDOMClassInfo::~nsDOMClassInfo()
{
if (IS_EXTERNAL(mData->mCachedClassInfo)) {
// Some compilers don't like delete'ing a const nsDOMClassInfo*
nsDOMClassInfoData* data = const_cast<nsDOMClassInfoData*>(mData);
delete static_cast<nsExternalDOMClassInfoData*>(data);
}
}
NS_IMPL_ADDREF(nsDOMClassInfo)
NS_IMPL_RELEASE(nsDOMClassInfo)
NS_INTERFACE_MAP_BEGIN(nsDOMClassInfo)
if (aIID.Equals(NS_GET_IID(nsXPCClassInfo)))
foundInterface = static_cast<nsIClassInfo*>(
static_cast<nsXPCClassInfo*>(this));
else
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIClassInfo)
NS_INTERFACE_MAP_END
static const JSClass sDOMConstructorProtoClass = {
"DOM Constructor.prototype", 0
};
static const char *
CutPrefix(const char *aName) {
static const char prefix_nsIDOM[] = "nsIDOM";
static const char prefix_nsI[] = "nsI";
if (strncmp(aName, prefix_nsIDOM, sizeof(prefix_nsIDOM) - 1) == 0) {
return aName + sizeof(prefix_nsIDOM) - 1;
}
if (strncmp(aName, prefix_nsI, sizeof(prefix_nsI) - 1) == 0) {
return aName + sizeof(prefix_nsI) - 1;
}
return aName;
}
// static
nsresult
nsDOMClassInfo::RegisterClassProtos(int32_t aClassInfoID)
{
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
bool found_old;
const nsIID *primary_iid = sClassInfoData[aClassInfoID].mProtoChainInterface;
if (!primary_iid || primary_iid == &NS_GET_IID(nsISupports)) {
return NS_OK;
}
nsCOMPtr<nsIInterfaceInfoManager>
iim(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID));
NS_ENSURE_TRUE(iim, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIInterfaceInfo> if_info;
bool first = true;
iim->GetInfoForIID(primary_iid, getter_AddRefs(if_info));
while (if_info) {
const nsIID *iid = nullptr;
if_info->GetIIDShared(&iid);
NS_ENSURE_TRUE(iid, NS_ERROR_UNEXPECTED);
if (iid->Equals(NS_GET_IID(nsISupports))) {
break;
}
const char *name = nullptr;
if_info->GetNameShared(&name);
NS_ENSURE_TRUE(name, NS_ERROR_UNEXPECTED);
nameSpaceManager->RegisterClassProto(CutPrefix(name), iid, &found_old);
if (first) {
first = false;
} else if (found_old) {
break;
}
nsCOMPtr<nsIInterfaceInfo> tmp(if_info);
tmp->GetParent(getter_AddRefs(if_info));
}
return NS_OK;
}
// static
nsresult
nsDOMClassInfo::RegisterExternalClasses()
{
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIComponentRegistrar> registrar;
nsresult rv = NS_GetComponentRegistrar(getter_AddRefs(registrar));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsICategoryManager> cm =
do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISimpleEnumerator> e;
rv = cm->EnumerateCategory(JAVASCRIPT_DOM_CLASS, getter_AddRefs(e));
NS_ENSURE_SUCCESS(rv, rv);
nsXPIDLCString contractId;
nsAutoCString categoryEntry;
nsCOMPtr<nsISupports> entry;
while (NS_SUCCEEDED(e->GetNext(getter_AddRefs(entry)))) {
nsCOMPtr<nsISupportsCString> category(do_QueryInterface(entry));
if (!category) {
NS_WARNING("Category entry not an nsISupportsCString!");
continue;
}
rv = category->GetData(categoryEntry);
cm->GetCategoryEntry(JAVASCRIPT_DOM_CLASS, categoryEntry.get(),
getter_Copies(contractId));
NS_ENSURE_SUCCESS(rv, rv);
nsCID *cid;
rv = registrar->ContractIDToCID(contractId, &cid);
if (NS_FAILED(rv)) {
NS_WARNING("Bad contract id registered with the script namespace manager");
continue;
}
rv = nameSpaceManager->RegisterExternalClassName(categoryEntry.get(), *cid);
nsMemory::Free(cid);
NS_ENSURE_SUCCESS(rv, rv);
}
return nameSpaceManager->RegisterExternalInterfaces(true);
}
#define _DOM_CLASSINFO_MAP_BEGIN(_class, _ifptr, _has_class_if) \
{ \
nsDOMClassInfoData &d = sClassInfoData[eDOMClassInfo_##_class##_id]; \
d.mProtoChainInterface = _ifptr; \
d.mHasClassInterface = _has_class_if; \
static const nsIID *interface_list[] = {
#define DOM_CLASSINFO_MAP_BEGIN(_class, _interface) \
_DOM_CLASSINFO_MAP_BEGIN(_class, &NS_GET_IID(_interface), true)
#define DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(_class, _interface) \
_DOM_CLASSINFO_MAP_BEGIN(_class, &NS_GET_IID(_interface), false)
#define DOM_CLASSINFO_MAP_ENTRY(_if) \
&NS_GET_IID(_if),
#define DOM_CLASSINFO_MAP_CONDITIONAL_ENTRY(_if, _cond) \
(_cond) ? &NS_GET_IID(_if) : nullptr,
#define DOM_CLASSINFO_MAP_END \
nullptr \
}; \
\
/* Compact the interface list */ \
size_t count = ArrayLength(interface_list); \
/* count is the number of array entries, which is one greater than the */ \
/* number of interfaces due to the terminating null */ \
for (size_t i = 0; i < count - 1; ++i) { \
if (!interface_list[i]) { \
/* We are moving the element at index i+1 and successors, */ \
/* so we must move only count - (i+1) elements total. */ \
memmove(&interface_list[i], &interface_list[i+1], \
sizeof(nsIID*) * (count - (i+1))); \
/* Make sure to examine the new pointer we ended up with at this */ \
/* slot, since it may be null too */ \
--i; \
--count; \
} \
} \
\
d.mInterfaces = interface_list; \
}
nsresult
nsDOMClassInfo::Init()
{
/* Errors that can trigger early returns are done first,
otherwise nsDOMClassInfo is left in a half inited state. */
static_assert(sizeof(uintptr_t) == sizeof(void*),
"BAD! You'll need to adjust the size of uintptr_t to the "
"size of a pointer on your platform.");
NS_ENSURE_TRUE(!sIsInitialized, NS_ERROR_ALREADY_INITIALIZED);
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
NS_ADDREF(sXPConnect = nsContentUtils::XPConnect());
nsCOMPtr<nsIXPCFunctionThisTranslator> elt = new nsEventListenerThisTranslator();
sXPConnect->SetFunctionThisTranslator(NS_GET_IID(nsIDOMEventListener), elt);
AutoSafeJSContext cx;
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(DOMPrototype, nsIDOMDOMConstructor)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMDOMConstructor)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(DOMConstructor, nsIDOMDOMConstructor)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMDOMConstructor)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSStyleRule, nsIDOMCSSStyleRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSStyleRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSCharsetRule, nsIDOMCSSCharsetRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSCharsetRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSImportRule, nsIDOMCSSImportRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSImportRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSMediaRule, nsIDOMCSSMediaRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSMediaRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(CSSNameSpaceRule, nsIDOMCSSRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSRule)
DOM_CLASSINFO_MAP_END
#ifdef MOZ_XUL
DOM_CLASSINFO_MAP_BEGIN(XULCommandDispatcher, nsIDOMXULCommandDispatcher)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULCommandDispatcher)
DOM_CLASSINFO_MAP_END
#endif
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(XULControllers, nsIControllers)
DOM_CLASSINFO_MAP_ENTRY(nsIControllers)
DOM_CLASSINFO_MAP_END
#ifdef MOZ_XUL
DOM_CLASSINFO_MAP_BEGIN(TreeSelection, nsITreeSelection)
DOM_CLASSINFO_MAP_ENTRY(nsITreeSelection)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(TreeContentView, nsITreeContentView)
DOM_CLASSINFO_MAP_ENTRY(nsITreeContentView)
DOM_CLASSINFO_MAP_ENTRY(nsITreeView)
DOM_CLASSINFO_MAP_END
#endif
#ifdef MOZ_XUL
DOM_CLASSINFO_MAP_BEGIN(XULTemplateBuilder, nsIXULTemplateBuilder)
DOM_CLASSINFO_MAP_ENTRY(nsIXULTemplateBuilder)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(XULTreeBuilder, nsIXULTreeBuilder)
DOM_CLASSINFO_MAP_ENTRY(nsIXULTreeBuilder)
DOM_CLASSINFO_MAP_ENTRY(nsIXULTemplateBuilder)
DOM_CLASSINFO_MAP_ENTRY(nsITreeView)
DOM_CLASSINFO_MAP_END
#endif
DOM_CLASSINFO_MAP_BEGIN(CSSMozDocumentRule, nsIDOMCSSMozDocumentRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSMozDocumentRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSSupportsRule, nsIDOMCSSSupportsRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSSupportsRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(MozSmsMessage, nsIDOMMozSmsMessage)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozSmsMessage)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(MozMmsMessage, nsIDOMMozMmsMessage)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozMmsMessage)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(MozMobileMessageThread, nsIDOMMozMobileMessageThread)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozMobileMessageThread)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSFontFaceRule, nsIDOMCSSFontFaceRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSFontFaceRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(ContentFrameMessageManager, nsISupports)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMEventTarget)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageListenerManager)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageSender)
DOM_CLASSINFO_MAP_ENTRY(nsISyncMessageSender)
DOM_CLASSINFO_MAP_ENTRY(nsIContentFrameMessageManager)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(ContentProcessMessageManager, nsISupports)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageListenerManager)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageSender)
DOM_CLASSINFO_MAP_ENTRY(nsISyncMessageSender)
DOM_CLASSINFO_MAP_ENTRY(nsIContentProcessMessageManager)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(ChromeMessageBroadcaster, nsISupports)
DOM_CLASSINFO_MAP_ENTRY(nsIFrameScriptLoader)
DOM_CLASSINFO_MAP_ENTRY(nsIProcessScriptLoader)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageListenerManager)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageBroadcaster)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(ChromeMessageSender, nsISupports)
DOM_CLASSINFO_MAP_ENTRY(nsIProcessChecker)
DOM_CLASSINFO_MAP_ENTRY(nsIFrameScriptLoader)
DOM_CLASSINFO_MAP_ENTRY(nsIProcessScriptLoader)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageListenerManager)
DOM_CLASSINFO_MAP_ENTRY(nsIMessageSender)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(MozCSSKeyframeRule, nsIDOMMozCSSKeyframeRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozCSSKeyframeRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(MozCSSKeyframesRule, nsIDOMMozCSSKeyframesRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozCSSKeyframesRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSCounterStyleRule, nsIDOMCSSCounterStyleRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSCounterStyleRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSPageRule, nsIDOMCSSPageRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSPageRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN(CSSFontFeatureValuesRule, nsIDOMCSSFontFeatureValuesRule)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSFontFeatureValuesRule)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(XULControlElement, nsIDOMXULControlElement)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULControlElement)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(XULLabeledControlElement, nsIDOMXULLabeledControlElement)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULLabeledControlElement)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(XULButtonElement, nsIDOMXULButtonElement)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULButtonElement)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(XULCheckboxElement, nsIDOMXULCheckboxElement)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULCheckboxElement)
DOM_CLASSINFO_MAP_END
DOM_CLASSINFO_MAP_BEGIN_NO_CLASS_IF(XULPopupElement, nsIDOMXULPopupElement)
DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULPopupElement)
DOM_CLASSINFO_MAP_END
static_assert(MOZ_ARRAY_LENGTH(sClassInfoData) == eDOMClassInfoIDCount,
"The number of items in sClassInfoData doesn't match the "
"number of nsIDOMClassInfo ID's, this is bad! Fix it!");
#ifdef DEBUG
for (size_t i = 0; i < eDOMClassInfoIDCount; i++) {
if (!sClassInfoData[i].u.mConstructorFptr ||
sClassInfoData[i].mDebugID != i) {
MOZ_CRASH("Class info data out of sync, you forgot to update "
"nsDOMClassInfo.h and nsDOMClassInfo.cpp! Fix this, "
"mozilla will not work without this fixed!");
}
}
for (size_t i = 0; i < eDOMClassInfoIDCount; i++) {
if (!sClassInfoData[i].mInterfaces) {
MOZ_CRASH("Class info data without an interface list! Fix this, "
"mozilla will not work without this fixed!");
}
}
#endif
// Initialize static JSString's
DefineStaticJSVals(cx);
int32_t i;
for (i = 0; i < eDOMClassInfoIDCount; ++i) {
if (i == eDOMClassInfo_DOMPrototype_id) {
continue;
}
nsDOMClassInfoData& data = sClassInfoData[i];
nameSpaceManager->RegisterClassName(data.mName, i, data.mChromeOnly,
data.mAllowXBL, &data.mNameUTF16);
}
for (i = 0; i < eDOMClassInfoIDCount; ++i) {
RegisterClassProtos(i);
}
RegisterExternalClasses();
sIsInitialized = true;
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::GetInterfaces(uint32_t *aCount, nsIID ***aArray)
{
uint32_t count = 0;
while (mData->mInterfaces[count]) {
count++;
}
*aCount = count;
if (!count) {
*aArray = nullptr;
return NS_OK;
}
*aArray = static_cast<nsIID **>(nsMemory::Alloc(count * sizeof(nsIID *)));
NS_ENSURE_TRUE(*aArray, NS_ERROR_OUT_OF_MEMORY);
uint32_t i;
for (i = 0; i < count; i++) {
nsIID *iid = static_cast<nsIID *>(nsMemory::Clone(mData->mInterfaces[i],
sizeof(nsIID)));
if (!iid) {
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(i, *aArray);
return NS_ERROR_OUT_OF_MEMORY;
}
*((*aArray) + i) = iid;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::GetHelperForLanguage(uint32_t language, nsISupports **_retval)
{
if (language == nsIProgrammingLanguage::JAVASCRIPT) {
*_retval = static_cast<nsIXPCScriptable *>(this);
NS_ADDREF(*_retval);
} else {
*_retval = nullptr;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::GetContractID(char **aContractID)
{
*aContractID = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::GetClassDescription(char **aClassDescription)
{
return GetClassName(aClassDescription);
}
NS_IMETHODIMP
nsDOMClassInfo::GetClassID(nsCID **aClassID)
{
*aClassID = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::GetClassIDNoAlloc(nsCID *aClassID)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsDOMClassInfo::GetImplementationLanguage(uint32_t *aImplLanguage)
{
*aImplLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::GetFlags(uint32_t *aFlags)
{
*aFlags = DOMCLASSINFO_STANDARD_FLAGS;
return NS_OK;
}
// nsIXPCScriptable
NS_IMETHODIMP
nsDOMClassInfo::GetClassName(char **aClassName)
{
*aClassName = NS_strdup(mData->mName);
return NS_OK;
}
// virtual
uint32_t
nsDOMClassInfo::GetScriptableFlags()
{
return mData->mScriptableFlags;
}
NS_IMETHODIMP
nsDOMClassInfo::PreCreate(nsISupports *nativeObj, JSContext *cx,
JSObject *globalObj, JSObject **parentObj)
{
*parentObj = globalObj;
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::AddProperty(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, jsid id, jsval *vp,
bool *_retval)
{
NS_WARNING("nsDOMClassInfo::AddProperty Don't call me!");
return NS_ERROR_UNEXPECTED;
}
NS_IMETHODIMP
nsDOMClassInfo::GetProperty(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, jsid id, jsval *vp,
bool *_retval)
{
NS_WARNING("nsDOMClassInfo::GetProperty Don't call me!");
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::SetProperty(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, jsid id, jsval *vp,
bool *_retval)
{
NS_WARNING("nsDOMClassInfo::SetProperty Don't call me!");
return NS_ERROR_UNEXPECTED;
}
NS_IMETHODIMP
nsDOMClassInfo::Enumerate(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, bool *_retval)
{
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::NewEnumerate(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, JS::AutoIdVector &properties,
bool *_retval)
{
NS_WARNING("nsDOMClassInfo::NewEnumerate Don't call me!");
return NS_ERROR_UNEXPECTED;
}
NS_IMETHODIMP
nsDOMClassInfo::Resolve(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *aObj, jsid aId, bool *resolvedp, bool *_retval)
{
JS::Rooted<JSObject*> obj(cx, aObj);
JS::Rooted<jsid> id(cx, aId);
if (id != sConstructor_id) {
*resolvedp = false;
return NS_OK;
}
JS::Rooted<JSObject*> global(cx, ::JS_GetGlobalForObject(cx, obj));
JS::Rooted<JSPropertyDescriptor> desc(cx);
if (!JS_GetPropertyDescriptor(cx, global, mData->mName, &desc)) {
return NS_ERROR_UNEXPECTED;
}
if (desc.object() && !desc.hasGetterOrSetter() && desc.value().isObject()) {
// If val is not an (non-null) object there either is no
// constructor for this class, or someone messed with
// window.classname, just fall through and let the JS engine
// return the Object constructor.
if (!::JS_DefinePropertyById(cx, obj, id, desc.value(),
JSPROP_ENUMERATE,
JS_STUBGETTER, JS_STUBSETTER)) {
return NS_ERROR_UNEXPECTED;
}
*resolvedp = true;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMClassInfo::Finalize(nsIXPConnectWrappedNative *wrapper, JSFreeOp *fop,
JSObject *obj)
{
NS_WARNING("nsDOMClassInfo::Finalize Don't call me!");
return NS_ERROR_UNEXPECTED;
}
NS_IMETHODIMP
nsDOMClassInfo::Call(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, const JS::CallArgs &args, bool *_retval)
{
NS_WARNING("nsDOMClassInfo::Call Don't call me!");
return NS_ERROR_UNEXPECTED;
}
NS_IMETHODIMP
nsDOMClassInfo::Construct(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, const JS::CallArgs &args,
bool *_retval)
{
NS_WARNING("nsDOMClassInfo::Construct Don't call me!");
return NS_ERROR_UNEXPECTED;
}
NS_IMETHODIMP
nsDOMClassInfo::HasInstance(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, JS::Handle<JS::Value> val, bool *bp,
bool *_retval)
{
NS_WARNING("nsDOMClassInfo::HasInstance Don't call me!");
return NS_ERROR_UNEXPECTED;
}
static nsresult
GetExternalClassInfo(nsScriptNameSpaceManager *aNameSpaceManager,
const nsAString &aName,
const nsGlobalNameStruct *aStruct,
const nsGlobalNameStruct **aResult)
{
NS_ASSERTION(aStruct->mType ==
nsGlobalNameStruct::eTypeExternalClassInfoCreator,
"Wrong type!");
nsresult rv;
nsCOMPtr<nsIDOMCIExtension> creator(do_CreateInstance(aStruct->mCID, &rv));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMScriptObjectFactory> sof(do_GetService(kDOMSOF_CID));
NS_ENSURE_TRUE(sof, NS_ERROR_FAILURE);
rv = creator->RegisterDOMCI(NS_ConvertUTF16toUTF8(aName).get(), sof);
NS_ENSURE_SUCCESS(rv, rv);
const nsGlobalNameStruct *name_struct = aNameSpaceManager->LookupName(aName);
if (name_struct &&
name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
*aResult = name_struct;
}
else {
NS_ERROR("Couldn't get the DOM ClassInfo data.");
*aResult = nullptr;
}
return NS_OK;
}
static nsresult
ResolvePrototype(nsIXPConnect *aXPConnect, nsGlobalWindow *aWin, JSContext *cx,
JS::Handle<JSObject*> obj, const char16_t *name,
const nsDOMClassInfoData *ci_data,
const nsGlobalNameStruct *name_struct,
nsScriptNameSpaceManager *nameSpaceManager,
JSObject *dot_prototype,
JS::MutableHandle<JSPropertyDescriptor> ctorDesc);
NS_IMETHODIMP
nsDOMClassInfo::PostCreatePrototype(JSContext * cx, JSObject * aProto)
{
JS::Rooted<JSObject*> proto(cx, aProto);
// This is called before any other location that requires
// sObjectClass, so compute it here. We assume that nobody has had a
// chance to monkey around with proto's prototype chain before this.
if (!sObjectClass) {
FindObjectClass(cx, proto);
NS_ASSERTION(sObjectClass && !strcmp(sObjectClass->name, "Object"),
"Incorrect object class!");
}
#ifdef DEBUG
JS::Rooted<JSObject*> proto2(cx);
JS_GetPrototype(cx, proto, &proto2);
NS_ASSERTION(proto2 && JS_GetClass(proto2) == sObjectClass,
"Hmm, somebody did something evil?");
#endif
#ifdef DEBUG
if (mData->mHasClassInterface && mData->mProtoChainInterface &&
mData->mProtoChainInterface != &NS_GET_IID(nsISupports)) {
nsCOMPtr<nsIInterfaceInfoManager>
iim(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID));
if (iim) {
nsCOMPtr<nsIInterfaceInfo> if_info;
iim->GetInfoForIID(mData->mProtoChainInterface,
getter_AddRefs(if_info));
if (if_info) {
nsXPIDLCString name;
if_info->GetName(getter_Copies(name));
NS_ASSERTION(nsCRT::strcmp(CutPrefix(name), mData->mName) == 0,
"Class name and proto chain interface name mismatch!");
}
}
}
#endif
// Make prototype delegation work correctly. Consider if a site sets
// HTMLElement.prototype.foopy = function () { ... } Now, calling
// document.body.foopy() needs to ensure that looking up foopy on
// document.body's prototype will find the right function.
JS::Rooted<JSObject*> global(cx, ::JS_GetGlobalForObject(cx, proto));
// Only do this if the global object is a window.
// XXX Is there a better way to check this?
nsISupports *globalNative = XPConnect()->GetNativeOfWrapper(cx, global);
nsCOMPtr<nsPIDOMWindow> piwin = do_QueryInterface(globalNative);
if (!piwin) {
return NS_OK;
}
nsGlobalWindow *win = nsGlobalWindow::FromSupports(globalNative);
if (win->IsClosedOrClosing()) {
return NS_OK;
}
// If the window is in a different compartment than the global object, then
// it's likely that global is a sandbox object whose prototype is a window.
// Don't do anything in this case.
if (win->FastGetGlobalJSObject() &&
js::GetObjectCompartment(global) != js::GetObjectCompartment(win->FastGetGlobalJSObject())) {
return NS_OK;
}
if (win->IsOuterWindow()) {
// XXXjst: Do security checks here when we remove the security
// checks on the inner window.
win = win->GetCurrentInnerWindowInternal();
if (!win || !(global = win->GetGlobalJSObject()) ||
win->IsClosedOrClosing()) {
return NS_OK;
}
}
// Don't overwrite a property set by content.
bool contentDefinedProperty;
if (!::JS_AlreadyHasOwnUCProperty(cx, global, reinterpret_cast<const char16_t*>(mData->mNameUTF16),
NS_strlen(mData->mNameUTF16),
&contentDefinedProperty)) {
return NS_ERROR_FAILURE;
}
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, NS_OK);
JS::Rooted<JSPropertyDescriptor> desc(cx);
nsresult rv = ResolvePrototype(sXPConnect, win, cx, global, mData->mNameUTF16,
mData, nullptr, nameSpaceManager, proto,
&desc);
NS_ENSURE_SUCCESS(rv, rv);
if (!contentDefinedProperty && desc.object() && !desc.value().isUndefined() &&
!JS_DefineUCProperty(cx, global, mData->mNameUTF16,
NS_strlen(mData->mNameUTF16), desc)) {
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
// static
nsIClassInfo *
NS_GetDOMClassInfoInstance(nsDOMClassInfoID aID)
{
if (aID >= eDOMClassInfoIDCount) {
NS_ERROR("Bad ID!");
return nullptr;
}
nsresult rv = RegisterDOMNames();
NS_ENSURE_SUCCESS(rv, nullptr);
if (!sClassInfoData[aID].mCachedClassInfo) {
nsDOMClassInfoData& data = sClassInfoData[aID];
data.mCachedClassInfo = data.u.mConstructorFptr(&data);
NS_ENSURE_TRUE(data.mCachedClassInfo, nullptr);
NS_ADDREF(data.mCachedClassInfo);
}
NS_ASSERTION(!IS_EXTERNAL(sClassInfoData[aID].mCachedClassInfo),
"This is bad, internal class marked as external!");
return sClassInfoData[aID].mCachedClassInfo;
}
// static
nsIClassInfo *
nsDOMClassInfo::GetClassInfoInstance(nsDOMClassInfoData* aData)
{
NS_ASSERTION(IS_EXTERNAL(aData->mCachedClassInfo)
|| !aData->mCachedClassInfo,
"This is bad, external class marked as internal!");
if (!aData->mCachedClassInfo) {
if (aData->u.mExternalConstructorFptr) {
aData->mCachedClassInfo =
aData->u.mExternalConstructorFptr(aData->mName);
} else {
aData->mCachedClassInfo = nsDOMGenericSH::doCreate(aData);
}
NS_ENSURE_TRUE(aData->mCachedClassInfo, nullptr);
NS_ADDREF(aData->mCachedClassInfo);
aData->mCachedClassInfo = MARK_EXTERNAL(aData->mCachedClassInfo);
}
return GET_CLEAN_CI_PTR(aData->mCachedClassInfo);
}
// static
void
nsDOMClassInfo::ShutDown()
{
if (sClassInfoData[0].u.mConstructorFptr) {
uint32_t i;
for (i = 0; i < eDOMClassInfoIDCount; i++) {
NS_IF_RELEASE(sClassInfoData[i].mCachedClassInfo);
}
}
sConstructor_id = JSID_VOID;
sWrappedJSObject_id = JSID_VOID;
NS_IF_RELEASE(sXPConnect);
sIsInitialized = false;
}
static nsresult
BaseStubConstructor(nsIWeakReference* aWeakOwner,
const nsGlobalNameStruct *name_struct, JSContext *cx,
JS::Handle<JSObject*> obj, const JS::CallArgs &args)
{
MOZ_ASSERT(obj);
MOZ_ASSERT(cx == nsContentUtils::GetCurrentJSContext());
nsresult rv;
nsCOMPtr<nsISupports> native;
if (name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
rv = NS_ERROR_NOT_AVAILABLE;
} else if (name_struct->mType == nsGlobalNameStruct::eTypeExternalConstructor) {
native = do_CreateInstance(name_struct->mCID, &rv);
} else if (name_struct->mType == nsGlobalNameStruct::eTypeExternalConstructorAlias) {
native = do_CreateInstance(name_struct->mAlias->mCID, &rv);
} else {
native = do_CreateInstance(*name_struct->mData->mConstructorCID, &rv);
}
if (NS_FAILED(rv)) {
NS_ERROR("Failed to create the object");
return rv;
}
js::AssertSameCompartment(cx, obj);
return nsContentUtils::WrapNative(cx, native, args.rval(), true);
}
static nsresult
DefineInterfaceConstants(JSContext *cx, JS::Handle<JSObject*> obj, const nsIID *aIID)
{
nsCOMPtr<nsIInterfaceInfoManager>
iim(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID));
NS_ENSURE_TRUE(iim, NS_ERROR_UNEXPECTED);
nsCOMPtr<nsIInterfaceInfo> if_info;
nsresult rv = iim->GetInfoForIID(aIID, getter_AddRefs(if_info));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && if_info, rv);
uint16_t constant_count;
if_info->GetConstantCount(&constant_count);
if (!constant_count) {
return NS_OK;
}
nsCOMPtr<nsIInterfaceInfo> parent_if_info;
rv = if_info->GetParent(getter_AddRefs(parent_if_info));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && parent_if_info, rv);
uint16_t parent_constant_count, i;
parent_if_info->GetConstantCount(&parent_constant_count);
JS::Rooted<JS::Value> v(cx);
for (i = parent_constant_count; i < constant_count; i++) {
nsXPIDLCString name;
rv = if_info->GetConstant(i, &v, getter_Copies(name));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv), rv);
if (!::JS_DefineProperty(cx, obj, name, v,
JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT,
JS_STUBGETTER, JS_STUBSETTER)) {
return NS_ERROR_UNEXPECTED;
}
}
return NS_OK;
}
class nsDOMConstructor MOZ_FINAL : public nsIDOMDOMConstructor
{
protected:
nsDOMConstructor(const char16_t* aName,
bool aIsConstructable,
nsPIDOMWindow* aOwner)
: mClassName(aName),
mConstructable(aIsConstructable),
mWeakOwner(do_GetWeakReference(aOwner))
{
}
~nsDOMConstructor() {}
public:
static nsresult Create(const char16_t* aName,
const nsDOMClassInfoData* aData,
const nsGlobalNameStruct* aNameStruct,
nsPIDOMWindow* aOwner,
nsDOMConstructor** aResult);
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMDOMCONSTRUCTOR
nsresult PreCreate(JSContext *cx, JSObject *globalObj, JSObject **parentObj);
nsresult Construct(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JS::Handle<JSObject*> obj, const JS::CallArgs &args,
bool *_retval);
nsresult HasInstance(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JS::Handle<JSObject*> obj, const jsval &val, bool *bp,
bool *_retval);
nsresult ResolveInterfaceConstants(JSContext *cx, JS::Handle<JSObject*> obj);
private:
const nsGlobalNameStruct *GetNameStruct()
{
if (!mClassName) {
NS_ERROR("Can't get name");
return nullptr;
}
const nsGlobalNameStruct *nameStruct;
#ifdef DEBUG
nsresult rv =
#endif
GetNameStruct(nsDependentString(mClassName), &nameStruct);
NS_ASSERTION(NS_FAILED(rv) || nameStruct, "Name isn't in hash.");
return nameStruct;
}
static nsresult GetNameStruct(const nsAString& aName,
const nsGlobalNameStruct **aNameStruct)
{
*aNameStruct = nullptr;
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
if (!nameSpaceManager) {
NS_ERROR("Can't get namespace manager.");
return NS_ERROR_UNEXPECTED;
}
*aNameStruct = nameSpaceManager->LookupName(aName);
// Return NS_OK here, aName just isn't a DOM class but nothing failed.
return NS_OK;
}
static bool IsConstructable(const nsDOMClassInfoData *aData)
{
if (IS_EXTERNAL(aData->mCachedClassInfo)) {
const nsExternalDOMClassInfoData* data =
static_cast<const nsExternalDOMClassInfoData*>(aData);
return data->mConstructorCID != nullptr;
}
return false;
}
static bool IsConstructable(const nsGlobalNameStruct *aNameStruct)
{
return
(aNameStruct->mType == nsGlobalNameStruct::eTypeClassConstructor &&
IsConstructable(&sClassInfoData[aNameStruct->mDOMClassInfoID])) ||
(aNameStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo &&
IsConstructable(aNameStruct->mData)) ||
aNameStruct->mType == nsGlobalNameStruct::eTypeExternalConstructor ||
aNameStruct->mType == nsGlobalNameStruct::eTypeExternalConstructorAlias;
}
const char16_t* mClassName;
const bool mConstructable;
nsWeakPtr mWeakOwner;
};
//static
nsresult
nsDOMConstructor::Create(const char16_t* aName,
const nsDOMClassInfoData* aData,
const nsGlobalNameStruct* aNameStruct,
nsPIDOMWindow* aOwner,
nsDOMConstructor** aResult)
{
*aResult = nullptr;
// Prevent creating a constructor if aOwner is inner window which doesn't have
// an outer window. If the outer window doesn't have an inner window or the
// caller can't access the outer window's current inner window then try to use
// the owner (so long as it is, in fact, an inner window). If that doesn't
// work then prevent creation also.
nsPIDOMWindow* outerWindow = aOwner->GetOuterWindow();
nsPIDOMWindow* currentInner =
outerWindow ? outerWindow->GetCurrentInnerWindow() : aOwner;
if (!currentInner ||
(aOwner != currentInner &&
!nsContentUtils::CanCallerAccess(currentInner) &&
!(currentInner = aOwner)->IsInnerWindow())) {
return NS_ERROR_DOM_SECURITY_ERR;
}
bool constructable = aNameStruct ?
IsConstructable(aNameStruct) :
IsConstructable(aData);
*aResult = new nsDOMConstructor(aName, constructable, currentInner);
NS_ENSURE_TRUE(*aResult, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(*aResult);
return NS_OK;
}
NS_IMPL_ADDREF(nsDOMConstructor)
NS_IMPL_RELEASE(nsDOMConstructor)
NS_INTERFACE_MAP_BEGIN(nsDOMConstructor)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMConstructor)
NS_INTERFACE_MAP_ENTRY(nsISupports)
if (aIID.Equals(NS_GET_IID(nsIClassInfo))) {
#ifdef DEBUG
{
const nsGlobalNameStruct *name_struct = GetNameStruct();
NS_ASSERTION(!name_struct ||
mConstructable == IsConstructable(name_struct),
"Can't change constructability dynamically!");
}
#endif
foundInterface =
NS_GetDOMClassInfoInstance(mConstructable ?
eDOMClassInfo_DOMConstructor_id :
eDOMClassInfo_DOMPrototype_id);
if (!foundInterface) {
*aInstancePtr = nullptr;
return NS_ERROR_OUT_OF_MEMORY;
}
} else
NS_INTERFACE_MAP_END
nsresult
nsDOMConstructor::PreCreate(JSContext *cx, JSObject *globalObj, JSObject **parentObj)
{
nsCOMPtr<nsPIDOMWindow> owner(do_QueryReferent(mWeakOwner));
if (!owner) {
// Can't do anything.
return NS_OK;
}
nsGlobalWindow *win = static_cast<nsGlobalWindow *>(owner.get());
return SetParentToWindow(win, parentObj);
}
nsresult
nsDOMConstructor::Construct(nsIXPConnectWrappedNative *wrapper, JSContext * cx,
JS::Handle<JSObject*> obj, const JS::CallArgs &args,
bool *_retval)
{
MOZ_ASSERT(obj);
const nsGlobalNameStruct *name_struct = GetNameStruct();
NS_ENSURE_TRUE(name_struct, NS_ERROR_FAILURE);
if (!IsConstructable(name_struct)) {
// ignore return value, we return false anyway
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
return BaseStubConstructor(mWeakOwner, name_struct, cx, obj, args);
}
nsresult
nsDOMConstructor::HasInstance(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JS::Handle<JSObject*> obj,
const jsval &v, bool *bp, bool *_retval)
{
// No need to look these up in the hash.
*bp = false;
if (v.isPrimitive()) {
return NS_OK;
}
JS::Rooted<JSObject*> dom_obj(cx, v.toObjectOrNull());
NS_ASSERTION(dom_obj, "nsDOMConstructor::HasInstance couldn't get object");
// This might not be the right object, if there are wrappers. Unwrap if we can.
JSObject *wrapped_obj = js::CheckedUnwrap(dom_obj, /* stopAtOuter = */ false);
if (wrapped_obj)
dom_obj = wrapped_obj;
const JSClass *dom_class = JS_GetClass(dom_obj);
if (!dom_class) {
NS_ERROR("nsDOMConstructor::HasInstance can't get class.");
return NS_ERROR_UNEXPECTED;
}
const nsGlobalNameStruct *name_struct;
nsresult rv = GetNameStruct(NS_ConvertASCIItoUTF16(dom_class->name), &name_struct);
if (NS_FAILED(rv)) {
return rv;
}
if (!name_struct) {
// This isn't a normal DOM object, see if this constructor lives on its
// prototype chain.
JS::Rooted<JSPropertyDescriptor> desc(cx);
if (!JS_GetPropertyDescriptor(cx, obj, "prototype", &desc)) {
return NS_ERROR_UNEXPECTED;
}
if (!desc.object() || desc.hasGetterOrSetter() || !desc.value().isObject()) {
return NS_OK;
}
JS::Rooted<JSObject*> dot_prototype(cx, &desc.value().toObject());
JS::Rooted<JSObject*> proto(cx, dom_obj);
for (;;) {
if (!JS_GetPrototype(cx, proto, &proto)) {
return NS_ERROR_UNEXPECTED;
}
if (!proto) {
break;
}
if (proto == dot_prototype) {
*bp = true;
break;
}
}
return NS_OK;
}
if (name_struct->mType != nsGlobalNameStruct::eTypeClassConstructor &&
name_struct->mType != nsGlobalNameStruct::eTypeExternalClassInfo &&
name_struct->mType != nsGlobalNameStruct::eTypeExternalConstructorAlias) {
// Doesn't have DOM interfaces.
return NS_OK;
}
const nsGlobalNameStruct *class_name_struct = GetNameStruct();
NS_ENSURE_TRUE(class_name_struct, NS_ERROR_FAILURE);
if (name_struct == class_name_struct) {
*bp = true;
return NS_OK;
}
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ASSERTION(nameSpaceManager, "Can't get namespace manager?");
const nsIID *class_iid;
if (class_name_struct->mType == nsGlobalNameStruct::eTypeInterface ||
class_name_struct->mType == nsGlobalNameStruct::eTypeClassProto) {
class_iid = &class_name_struct->mIID;
} else if (class_name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
class_iid =
sClassInfoData[class_name_struct->mDOMClassInfoID].mProtoChainInterface;
} else if (class_name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
class_iid = class_name_struct->mData->mProtoChainInterface;
} else if (class_name_struct->mType == nsGlobalNameStruct::eTypeExternalConstructorAlias) {
const nsGlobalNameStruct* alias_struct =
nameSpaceManager->GetConstructorProto(class_name_struct);
if (!alias_struct) {
NS_ERROR("Couldn't get constructor prototype.");
return NS_ERROR_UNEXPECTED;
}
if (alias_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
class_iid =
sClassInfoData[alias_struct->mDOMClassInfoID].mProtoChainInterface;
} else if (alias_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
class_iid = alias_struct->mData->mProtoChainInterface;
} else {
NS_ERROR("Expected eTypeClassConstructor or eTypeExternalClassInfo.");
return NS_ERROR_UNEXPECTED;
}
} else {
*bp = false;
return NS_OK;
}
if (name_struct->mType == nsGlobalNameStruct::eTypeExternalConstructorAlias) {
name_struct = nameSpaceManager->GetConstructorProto(name_struct);
if (!name_struct) {
NS_ERROR("Couldn't get constructor prototype.");
return NS_ERROR_UNEXPECTED;
}
}
NS_ASSERTION(name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor ||
name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo,
"The constructor was set up with a struct of the wrong type.");
const nsDOMClassInfoData *ci_data = nullptr;
if (name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor &&
name_struct->mDOMClassInfoID >= 0) {
ci_data = &sClassInfoData[name_struct->mDOMClassInfoID];
} else if (name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
ci_data = name_struct->mData;
}
nsCOMPtr<nsIInterfaceInfoManager>
iim(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID));
if (!iim) {
NS_ERROR("nsDOMConstructor::HasInstance can't get interface info mgr.");
return NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsIInterfaceInfo> if_info;
uint32_t count = 0;
const nsIID* class_interface;
while ((class_interface = ci_data->mInterfaces[count++])) {
if (class_iid->Equals(*class_interface)) {
*bp = true;
return NS_OK;
}
iim->GetInfoForIID(class_interface, getter_AddRefs(if_info));
if (!if_info) {
NS_ERROR("nsDOMConstructor::HasInstance can't get interface info.");
return NS_ERROR_UNEXPECTED;
}
if_info->HasAncestor(class_iid, bp);
if (*bp) {
return NS_OK;
}
}
return NS_OK;
}
nsresult
nsDOMConstructor::ResolveInterfaceConstants(JSContext *cx, JS::Handle<JSObject*> obj)
{
const nsGlobalNameStruct *class_name_struct = GetNameStruct();
if (!class_name_struct)
return NS_ERROR_UNEXPECTED;
const nsIID *class_iid;
if (class_name_struct->mType == nsGlobalNameStruct::eTypeInterface ||
class_name_struct->mType == nsGlobalNameStruct::eTypeClassProto) {
class_iid = &class_name_struct->mIID;
} else if (class_name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
class_iid =
sClassInfoData[class_name_struct->mDOMClassInfoID].mProtoChainInterface;
} else if (class_name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
class_iid = class_name_struct->mData->mProtoChainInterface;
} else {
return NS_OK;
}
nsresult rv = DefineInterfaceConstants(cx, obj, class_iid);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsDOMConstructor::ToString(nsAString &aResult)
{
aResult.AssignLiteral("[object ");
aResult.Append(mClassName);
aResult.Append(char16_t(']'));
return NS_OK;
}
static nsresult
GetXPCProto(nsIXPConnect *aXPConnect, JSContext *cx, nsGlobalWindow *aWin,
const nsGlobalNameStruct *aNameStruct,
JS::MutableHandle<JSObject*> aProto)
{
NS_ASSERTION(aNameStruct->mType ==
nsGlobalNameStruct::eTypeClassConstructor ||
aNameStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo,
"Wrong type!");
nsCOMPtr<nsIClassInfo> ci;
if (aNameStruct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
int32_t id = aNameStruct->mDOMClassInfoID;
MOZ_ASSERT(id >= 0, "Negative DOM classinfo?!?");
nsDOMClassInfoID ci_id = (nsDOMClassInfoID)id;
ci = NS_GetDOMClassInfoInstance(ci_id);
}
else {
ci = nsDOMClassInfo::GetClassInfoInstance(aNameStruct->mData);
}
NS_ENSURE_TRUE(ci, NS_ERROR_UNEXPECTED);
nsCOMPtr<nsIXPConnectJSObjectHolder> proto_holder;
nsresult rv =
aXPConnect->GetWrappedNativePrototype(cx, aWin->GetGlobalJSObject(), ci,
getter_AddRefs(proto_holder));
NS_ENSURE_SUCCESS(rv, rv);
aProto.set(proto_holder->GetJSObject());
return JS_WrapObject(cx, aProto) ? NS_OK : NS_ERROR_FAILURE;
}
// Either ci_data must be non-null or name_struct must be non-null and of type
// eTypeClassProto.
static nsresult
ResolvePrototype(nsIXPConnect *aXPConnect, nsGlobalWindow *aWin, JSContext *cx,
JS::Handle<JSObject*> obj, const char16_t *name,
const nsDOMClassInfoData *ci_data,
const nsGlobalNameStruct *name_struct,
nsScriptNameSpaceManager *nameSpaceManager,
JSObject* aDot_prototype,
JS::MutableHandle<JSPropertyDescriptor> ctorDesc)
{
JS::Rooted<JSObject*> dot_prototype(cx, aDot_prototype);
NS_ASSERTION(ci_data ||
(name_struct &&
name_struct->mType == nsGlobalNameStruct::eTypeClassProto),
"Wrong type or missing ci_data!");
nsRefPtr<nsDOMConstructor> constructor;
nsresult rv = nsDOMConstructor::Create(name, ci_data, name_struct, aWin,
getter_AddRefs(constructor));
NS_ENSURE_SUCCESS(rv, rv);
JS::Rooted<JS::Value> v(cx);
js::AssertSameCompartment(cx, obj);
rv = nsContentUtils::WrapNative(cx, constructor,
&NS_GET_IID(nsIDOMDOMConstructor), &v,
false);
NS_ENSURE_SUCCESS(rv, rv);
FillPropertyDescriptor(ctorDesc, obj, 0, v);
// And make sure we wrap the value into the right compartment. Note that we
// do this with ctorDesc.value(), not with v, because we need v to be in the
// right compartment (that of the reflector of |constructor|) below.
if (!JS_WrapValue(cx, ctorDesc.value())) {
return NS_ERROR_UNEXPECTED;
}
JS::Rooted<JSObject*> class_obj(cx, &v.toObject());
const nsIID *primary_iid = &NS_GET_IID(nsISupports);
if (!ci_data) {
primary_iid = &name_struct->mIID;
}
else if (ci_data->mProtoChainInterface) {
primary_iid = ci_data->mProtoChainInterface;
}
nsCOMPtr<nsIInterfaceInfo> if_info;
nsCOMPtr<nsIInterfaceInfo> parent;
const char *class_parent_name = nullptr;
if (!primary_iid->Equals(NS_GET_IID(nsISupports))) {
JSAutoCompartment ac(cx, class_obj);
rv = DefineInterfaceConstants(cx, class_obj, primary_iid);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIInterfaceInfoManager>
iim(do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID));
NS_ENSURE_TRUE(iim, NS_ERROR_NOT_AVAILABLE);
iim->GetInfoForIID(primary_iid, getter_AddRefs(if_info));
NS_ENSURE_TRUE(if_info, NS_ERROR_UNEXPECTED);
const nsIID *iid = nullptr;
if (ci_data && !ci_data->mHasClassInterface) {
if_info->GetIIDShared(&iid);
} else {
if_info->GetParent(getter_AddRefs(parent));
NS_ENSURE_TRUE(parent, NS_ERROR_UNEXPECTED);
parent->GetIIDShared(&iid);
}
if (iid) {
if (!iid->Equals(NS_GET_IID(nsISupports))) {
if (ci_data && !ci_data->mHasClassInterface) {
// If the class doesn't have a class interface the primary
// interface is the interface that should be
// constructor.prototype.__proto__.
if_info->GetNameShared(&class_parent_name);
} else {
// If the class does have a class interface (or there's no
// real class for this name) then the parent of the
// primary interface is what we want on
// constructor.prototype.__proto__.
NS_ASSERTION(parent, "Whoa, this is bad, null parent here!");
parent->GetNameShared(&class_parent_name);
}
}
}
}
{
JS::Rooted<JSObject*> winobj(cx, aWin->FastGetGlobalJSObject());
JS::Rooted<JSObject*> proto(cx);
if (class_parent_name) {
JSAutoCompartment ac(cx, winobj);
JS::Rooted<JSPropertyDescriptor> desc(cx);
if (!JS_GetPropertyDescriptor(cx, winobj, CutPrefix(class_parent_name), &desc)) {
return NS_ERROR_UNEXPECTED;
}
if (desc.object() && !desc.hasGetterOrSetter() && desc.value().isObject()) {
JS::Rooted<JSObject*> obj(cx, &desc.value().toObject());
if (!JS_GetPropertyDescriptor(cx, obj, "prototype", &desc)) {
return NS_ERROR_UNEXPECTED;
}
if (desc.object() && !desc.hasGetterOrSetter() && desc.value().isObject()) {
proto = &desc.value().toObject();
}
}
}
if (dot_prototype) {
JSAutoCompartment ac(cx, dot_prototype);
JS::Rooted<JSObject*> xpc_proto_proto(cx);
if (!::JS_GetPrototype(cx, dot_prototype, &xpc_proto_proto)) {
return NS_ERROR_UNEXPECTED;
}
if (proto &&
(!xpc_proto_proto ||
JS_GetClass(xpc_proto_proto) == sObjectClass)) {
if (!JS_WrapObject(cx, &proto) ||
!JS_SetPrototype(cx, dot_prototype, proto)) {
return NS_ERROR_UNEXPECTED;
}
}
} else {
JSAutoCompartment ac(cx, winobj);
if (!proto) {
proto = JS_GetObjectPrototype(cx, winobj);
}
dot_prototype = ::JS_NewObjectWithUniqueType(cx,
&sDOMConstructorProtoClass,
proto,
winobj);
NS_ENSURE_TRUE(dot_prototype, NS_ERROR_OUT_OF_MEMORY);
}
}
v = OBJECT_TO_JSVAL(dot_prototype);
JSAutoCompartment ac(cx, class_obj);
// Per ECMA, the prototype property is {DontEnum, DontDelete, ReadOnly}
if (!JS_WrapValue(cx, &v) ||
!JS_DefineProperty(cx, class_obj, "prototype", v,
JSPROP_PERMANENT | JSPROP_READONLY,
JS_STUBGETTER, JS_STUBSETTER)) {
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
static bool
OldBindingConstructorEnabled(const nsGlobalNameStruct *aStruct,
nsGlobalWindow *aWin, JSContext *cx)
{
MOZ_ASSERT(aStruct->mType == nsGlobalNameStruct::eTypeProperty ||
aStruct->mType == nsGlobalNameStruct::eTypeClassConstructor ||
aStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo);
// Don't expose chrome only constructors to content windows.
if (aStruct->mChromeOnly) {
bool expose;
if (aStruct->mAllowXBL) {
expose = IsChromeOrXBL(cx, nullptr);
} else {
expose = nsContentUtils::IsSystemPrincipal(aWin->GetPrincipal());
}
if (!expose) {
return false;
}
}
return true;
}
static nsresult
LookupComponentsShim(JSContext *cx, JS::Handle<JSObject*> global,
nsPIDOMWindow *win,
JS::MutableHandle<JSPropertyDescriptor> desc);
// static
bool
nsWindowSH::NameStructEnabled(JSContext* aCx, nsGlobalWindow *aWin,
const nsAString& aName,
const nsGlobalNameStruct& aNameStruct)
{
const nsGlobalNameStruct* nameStruct = &aNameStruct;
if (nameStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfoCreator) {
nsresult rv = GetExternalClassInfo(GetNameSpaceManager(), aName, nameStruct,
&nameStruct);
if (NS_FAILED(rv) || !nameStruct) {
return false;
}
}
return (nameStruct->mType != nsGlobalNameStruct::eTypeProperty &&
nameStruct->mType != nsGlobalNameStruct::eTypeClassConstructor &&
nameStruct->mType != nsGlobalNameStruct::eTypeExternalClassInfo) ||
OldBindingConstructorEnabled(nameStruct, aWin, aCx);
}
#ifdef RELEASE_BUILD
#define USE_CONTROLLERS_SHIM
#endif
#ifdef USE_CONTROLLERS_SHIM
static const JSClass ControllersShimClass = {
"XULControllers", 0
};
#endif
// static
nsresult
nsWindowSH::GlobalResolve(nsGlobalWindow *aWin, JSContext *cx,
JS::Handle<JSObject*> obj, JS::Handle<jsid> id,
JS::MutableHandle<JSPropertyDescriptor> desc)
{
if (id == XPCJSRuntime::Get()->GetStringID(XPCJSRuntime::IDX_COMPONENTS)) {
return LookupComponentsShim(cx, obj, aWin, desc);
}
#ifdef USE_CONTROLLERS_SHIM
// Note: We use |obj| rather than |aWin| to get the principal here, because
// this is called during Window setup when the Document isn't necessarily
// hooked up yet.
if (id == XPCJSRuntime::Get()->GetStringID(XPCJSRuntime::IDX_CONTROLLERS) &&
!xpc::IsXrayWrapper(obj) &&
!nsContentUtils::IsSystemPrincipal(nsContentUtils::ObjectPrincipal(obj)))
{
if (aWin->GetDoc()) {
aWin->GetDoc()->WarnOnceAbout(nsIDocument::eWindow_Controllers);
}
MOZ_ASSERT(JS_IsGlobalObject(obj));
JS::Rooted<JSObject*> shim(cx, JS_NewObject(cx, &ControllersShimClass));
if (NS_WARN_IF(!shim)) {
return NS_ERROR_OUT_OF_MEMORY;
}
FillPropertyDescriptor(desc, obj, JS::ObjectValue(*shim), /* readOnly = */ false);
return NS_OK;
}
#endif
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
// Note - Our only caller is nsGlobalWindow::DoResolve, which checks that
// JSID_IS_STRING(id) is true.
nsAutoJSString name;
if (!name.init(cx, JSID_TO_STRING(id))) {
return NS_ERROR_OUT_OF_MEMORY;
}
const char16_t *class_name = nullptr;
const nsGlobalNameStruct *name_struct =
nameSpaceManager->LookupName(name, &class_name);
if (!name_struct) {
return NS_OK;
}
// The class_name had better match our name
MOZ_ASSERT(name.Equals(class_name));
NS_ENSURE_TRUE(class_name, NS_ERROR_UNEXPECTED);
nsresult rv = NS_OK;
if (name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfoCreator) {
rv = GetExternalClassInfo(nameSpaceManager, name, name_struct,
&name_struct);
if (NS_FAILED(rv) || !name_struct) {
return rv;
}
}
if (name_struct->mType == nsGlobalNameStruct::eTypeNewDOMBinding ||
name_struct->mType == nsGlobalNameStruct::eTypeInterface ||
name_struct->mType == nsGlobalNameStruct::eTypeClassProto ||
name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
// Lookup new DOM bindings.
DefineInterface getOrCreateInterfaceObject =
name_struct->mDefineDOMInterface;
if (getOrCreateInterfaceObject) {
if (name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor &&
!OldBindingConstructorEnabled(name_struct, aWin, cx)) {
return NS_OK;
}
ConstructorEnabled* checkEnabledForScope = name_struct->mConstructorEnabled;
// We do the enabled check on the current compartment of cx, but for the
// actual object we pass in the underlying object in the Xray case. That
// way the callee can decide whether to allow access based on the caller
// or the window being touched.
JS::Rooted<JSObject*> global(cx,
js::CheckedUnwrap(obj, /* stopAtOuter = */ false));
if (!global) {
return NS_ERROR_DOM_SECURITY_ERR;
}
if (checkEnabledForScope && !checkEnabledForScope(cx, global)) {
return NS_OK;
}
// The DOM constructor resolve machinery interacts with Xrays in tricky
// ways, and there are some asymmetries that are important to understand.
//
// In the regular (non-Xray) case, we only want to resolve constructors
// once (so that if they're deleted, they don't reappear). We do this by
// stashing the constructor in a slot on the global, such that we can see
// during resolve whether we've created it already. This is rather
// memory-intensive, so we don't try to maintain these semantics when
// manipulating a global over Xray (so the properties just re-resolve if
// they've been deleted).
//
// Unfortunately, there's a bit of an impedance-mismatch between the Xray
// and non-Xray machinery. The Xray machinery wants an API that returns a
// JSPropertyDescriptor, so that the resolve hook doesn't have to get
// snared up with trying to define a property on the Xray holder. At the
// same time, the DefineInterface callbacks are set up to define things
// directly on the global. And re-jiggering them to return property
// descriptors is tricky, because some DefineInterface callbacks define
// multiple things (like the Image() alias for HTMLImageElement).
//
// So the setup is as-follows:
//
// * The resolve function takes a JSPropertyDescriptor, but in the
// non-Xray case, callees may define things directly on the global, and
// set the value on the property descriptor to |undefined| to indicate
// that there's nothing more for the caller to do. We assert against
// this behavior in the Xray case.
//
// * We make sure that we do a non-Xray resolve first, so that all the
// slots are set up. In the Xray case, this means unwrapping and doing
// a non-Xray resolve before doing the Xray resolve.
//
// This all could use some grand refactoring, but for now we just limp
// along.
if (xpc::WrapperFactory::IsXrayWrapper(obj)) {
JS::Rooted<JSObject*> interfaceObject(cx);
{
JSAutoCompartment ac(cx, global);
interfaceObject = getOrCreateInterfaceObject(cx, global, id, false);
}
if (NS_WARN_IF(!interfaceObject)) {
return NS_ERROR_FAILURE;
}
if (!JS_WrapObject(cx, &interfaceObject)) {
return NS_ERROR_FAILURE;
}
FillPropertyDescriptor(desc, obj, 0, JS::ObjectValue(*interfaceObject));
} else {
JS::Rooted<JSObject*> interfaceObject(cx,
getOrCreateInterfaceObject(cx, obj, id, true));
if (NS_WARN_IF(!interfaceObject)) {
return NS_ERROR_FAILURE;
}
// We've already defined the property. We indicate this to the caller
// by filling a property descriptor with JS::UndefinedValue() as the
// value. We still have to fill in a property descriptor, though, so
// that the caller knows the property is in fact on this object. It
// doesn't matter what we pass for the "readonly" argument here.
FillPropertyDescriptor(desc, obj, JS::UndefinedValue(), false);
}
return NS_OK;
}
}
if (name_struct->mType == nsGlobalNameStruct::eTypeInterface) {
// We're resolving a name of a DOM interface for which there is no
// direct DOM class, create a constructor object...
nsRefPtr<nsDOMConstructor> constructor;
rv = nsDOMConstructor::Create(class_name,
nullptr,
name_struct,
static_cast<nsPIDOMWindow*>(aWin),
getter_AddRefs(constructor));
NS_ENSURE_SUCCESS(rv, rv);
JS::Rooted<JS::Value> v(cx);
js::AssertSameCompartment(cx, obj);
rv = nsContentUtils::WrapNative(cx, constructor,
&NS_GET_IID(nsIDOMDOMConstructor), &v,
false);
NS_ENSURE_SUCCESS(rv, rv);
JS::Rooted<JSObject*> class_obj(cx, &v.toObject());
// ... and define the constants from the DOM interface on that
// constructor object.
{
JSAutoCompartment ac(cx, class_obj);
rv = DefineInterfaceConstants(cx, class_obj, &name_struct->mIID);
NS_ENSURE_SUCCESS(rv, rv);
}
if (!JS_WrapValue(cx, &v)) {
return NS_ERROR_UNEXPECTED;
}
FillPropertyDescriptor(desc, obj, 0, v);
return NS_OK;
}
if (name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor ||
name_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
if (!OldBindingConstructorEnabled(name_struct, aWin, cx)) {
return NS_OK;
}
// Create the XPConnect prototype for our classinfo, PostCreateProto will
// set up the prototype chain. This will go ahead and define things on the
// actual window's global.
JS::Rooted<JSObject*> dot_prototype(cx);
rv = GetXPCProto(nsDOMClassInfo::sXPConnect, cx, aWin, name_struct,
&dot_prototype);
NS_ENSURE_SUCCESS(rv, rv);
MOZ_ASSERT(dot_prototype);
bool isXray = xpc::WrapperFactory::IsXrayWrapper(obj);
MOZ_ASSERT_IF(obj != aWin->GetGlobalJSObject(), isXray);
if (!isXray) {
// GetXPCProto already defined the property for us
FillPropertyDescriptor(desc, obj, JS::UndefinedValue(), false);
return NS_OK;
}
// This is the Xray case. Look up the constructor object for this
// prototype.
const nsDOMClassInfoData *ci_data;
if (name_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
ci_data = &sClassInfoData[name_struct->mDOMClassInfoID];
} else {
ci_data = name_struct->mData;
}
return ResolvePrototype(nsDOMClassInfo::sXPConnect, aWin, cx, obj,
class_name, ci_data,
name_struct, nameSpaceManager, dot_prototype,
desc);
}
if (name_struct->mType == nsGlobalNameStruct::eTypeClassProto) {
// We don't have a XPConnect prototype object, let ResolvePrototype create
// one.
return ResolvePrototype(nsDOMClassInfo::sXPConnect, aWin, cx, obj,
class_name, nullptr,
name_struct, nameSpaceManager, nullptr, desc);
}
if (name_struct->mType == nsGlobalNameStruct::eTypeExternalConstructorAlias) {
const nsGlobalNameStruct *alias_struct =
nameSpaceManager->GetConstructorProto(name_struct);
NS_ENSURE_TRUE(alias_struct, NS_ERROR_UNEXPECTED);
// We need to use the XPConnect prototype for the DOM class that this
// constructor is an alias for (for example for Image we need the prototype
// for HTMLImageElement).
JS::Rooted<JSObject*> dot_prototype(cx);
rv = GetXPCProto(nsDOMClassInfo::sXPConnect, cx, aWin, alias_struct,
&dot_prototype);
NS_ENSURE_SUCCESS(rv, rv);
MOZ_ASSERT(dot_prototype);
const nsDOMClassInfoData *ci_data;
if (alias_struct->mType == nsGlobalNameStruct::eTypeClassConstructor) {
ci_data = &sClassInfoData[alias_struct->mDOMClassInfoID];
} else if (alias_struct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
ci_data = alias_struct->mData;
} else {
return NS_ERROR_UNEXPECTED;
}
return ResolvePrototype(nsDOMClassInfo::sXPConnect, aWin, cx, obj,
class_name, ci_data,
name_struct, nameSpaceManager, nullptr, desc);
}
if (name_struct->mType == nsGlobalNameStruct::eTypeExternalConstructor) {
nsRefPtr<nsDOMConstructor> constructor;
rv = nsDOMConstructor::Create(class_name, nullptr, name_struct,
static_cast<nsPIDOMWindow*>(aWin),
getter_AddRefs(constructor));
NS_ENSURE_SUCCESS(rv, rv);
JS::Rooted<JS::Value> val(cx);
js::AssertSameCompartment(cx, obj);
rv = nsContentUtils::WrapNative(cx, constructor,
&NS_GET_IID(nsIDOMDOMConstructor), &val,
true);
NS_ENSURE_SUCCESS(rv, rv);
NS_ASSERTION(val.isObject(), "Why didn't we get a JSObject?");
FillPropertyDescriptor(desc, obj, 0, val);
return NS_OK;
}
if (name_struct->mType == nsGlobalNameStruct::eTypeProperty) {
if (!OldBindingConstructorEnabled(name_struct, aWin, cx))
return NS_OK;
// Before defining a global property, check for a named subframe of the
// same name. If it exists, we don't want to shadow it.
nsCOMPtr<nsIDOMWindow> childWin = aWin->GetChildWindow(name);
if (childWin)
return NS_OK;
nsCOMPtr<nsISupports> native(do_CreateInstance(name_struct->mCID, &rv));
NS_ENSURE_SUCCESS(rv, rv);
JS::Rooted<JS::Value> prop_val(cx, JS::UndefinedValue()); // Property value.
nsCOMPtr<nsIDOMGlobalPropertyInitializer> gpi(do_QueryInterface(native));
if (gpi) {
rv = gpi->Init(aWin, &prop_val);
NS_ENSURE_SUCCESS(rv, rv);
}
if (prop_val.isPrimitive() && !prop_val.isNull()) {
if (aWin->IsOuterWindow()) {
nsGlobalWindow *inner = aWin->GetCurrentInnerWindowInternal();
NS_ENSURE_TRUE(inner, NS_ERROR_UNEXPECTED);
}
rv = nsContentUtils::WrapNative(cx, native, &prop_val, true);
}
NS_ENSURE_SUCCESS(rv, rv);
if (!JS_WrapValue(cx, &prop_val)) {
return NS_ERROR_UNEXPECTED;
}
FillPropertyDescriptor(desc, obj, prop_val, false);
return NS_OK;
}
return rv;
}
struct InterfaceShimEntry {
const char *geckoName;
const char *domName;
};
// We add shims from Components.interfaces.nsIDOMFoo to window.Foo for each
// interface that has interface constants that sites might be getting off
// of Ci.
const InterfaceShimEntry kInterfaceShimMap[] =
{ { "nsIDOMFileReader", "FileReader" },
{ "nsIXMLHttpRequest", "XMLHttpRequest" },
{ "nsIDOMDOMException", "DOMException" },
{ "nsIDOMNode", "Node" },
{ "nsIDOMCSSPrimitiveValue", "CSSPrimitiveValue" },
{ "nsIDOMCSSRule", "CSSRule" },
{ "nsIDOMCSSValue", "CSSValue" },
{ "nsIDOMEvent", "Event" },
{ "nsIDOMNSEvent", "Event" },
{ "nsIDOMKeyEvent", "KeyEvent" },
{ "nsIDOMMouseEvent", "MouseEvent" },
{ "nsIDOMMouseScrollEvent", "MouseScrollEvent" },
{ "nsIDOMMutationEvent", "MutationEvent" },
{ "nsIDOMSimpleGestureEvent", "SimpleGestureEvent" },
{ "nsIDOMUIEvent", "UIEvent" },
{ "nsIDOMHTMLMediaElement", "HTMLMediaElement" },
{ "nsIDOMMediaError", "MediaError" },
{ "nsIDOMOfflineResourceList", "OfflineResourceList" },
{ "nsIDOMRange", "Range" },
{ "nsIDOMSVGLength", "SVGLength" },
{ "nsIDOMNodeFilter", "NodeFilter" },
{ "nsIDOMXPathResult", "XPathResult" } };
static nsresult
LookupComponentsShim(JSContext *cx, JS::Handle<JSObject*> global,
nsPIDOMWindow *win,
JS::MutableHandle<JSPropertyDescriptor> desc)
{
// Keep track of how often this happens.
Telemetry::Accumulate(Telemetry::COMPONENTS_SHIM_ACCESSED_BY_CONTENT, true);
// Warn once.
nsCOMPtr<nsIDocument> doc = win->GetExtantDoc();
if (doc) {
doc->WarnOnceAbout(nsIDocument::eComponents, /* asError = */ true);
}
// Create a fake Components object.
AssertSameCompartment(cx, global);
JS::Rooted<JSObject*> components(cx, JS_NewPlainObject(cx));
NS_ENSURE_TRUE(components, NS_ERROR_OUT_OF_MEMORY);
// Create a fake interfaces object.
JS::Rooted<JSObject*> interfaces(cx, JS_NewPlainObject(cx));
NS_ENSURE_TRUE(interfaces, NS_ERROR_OUT_OF_MEMORY);
bool ok =
JS_DefineProperty(cx, components, "interfaces", interfaces,
JSPROP_ENUMERATE | JSPROP_PERMANENT | JSPROP_READONLY,
JS_STUBGETTER, JS_STUBSETTER);
NS_ENSURE_TRUE(ok, NS_ERROR_OUT_OF_MEMORY);
// Define a bunch of shims from the Ci.nsIDOMFoo to window.Foo for DOM
// interfaces with constants.
for (uint32_t i = 0; i < ArrayLength(kInterfaceShimMap); ++i) {
// Grab the names from the table.
const char *geckoName = kInterfaceShimMap[i].geckoName;
const char *domName = kInterfaceShimMap[i].domName;
// Look up the appopriate interface object on the global.
JS::Rooted<JS::Value> v(cx, JS::UndefinedValue());
ok = JS_GetProperty(cx, global, domName, &v);
NS_ENSURE_TRUE(ok, NS_ERROR_OUT_OF_MEMORY);
if (!v.isObject()) {
NS_WARNING("Unable to find interface object on global");
continue;
}
// Define the shim on the interfaces object.
ok = JS_DefineProperty(cx, interfaces, geckoName, v,
JSPROP_ENUMERATE | JSPROP_PERMANENT | JSPROP_READONLY,
JS_STUBGETTER, JS_STUBSETTER);
NS_ENSURE_TRUE(ok, NS_ERROR_OUT_OF_MEMORY);
}
FillPropertyDescriptor(desc, global, JS::ObjectValue(*components), false);
return NS_OK;
}
// EventTarget helper
NS_IMETHODIMP
nsEventTargetSH::PreCreate(nsISupports *nativeObj, JSContext *cx,
JSObject *aGlobalObj, JSObject **parentObj)
{
JS::Rooted<JSObject*> globalObj(cx, aGlobalObj);
DOMEventTargetHelper* target = DOMEventTargetHelper::FromSupports(nativeObj);
nsCOMPtr<nsIScriptGlobalObject> native_parent;
target->GetParentObject(getter_AddRefs(native_parent));
*parentObj = native_parent ? native_parent->GetGlobalJSObject() : globalObj;
return *parentObj ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsEventTargetSH::AddProperty(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *obj, jsid id, jsval *vp, bool *_retval)
{
nsEventTargetSH::PreserveWrapper(GetNative(wrapper, obj));
return NS_OK;
}
void
nsEventTargetSH::PreserveWrapper(nsISupports *aNative)
{
DOMEventTargetHelper* target = DOMEventTargetHelper::FromSupports(aNative);
target->PreserveWrapper(aNative);
}
// nsIDOMEventListener::HandleEvent() 'this' converter helper
NS_INTERFACE_MAP_BEGIN(nsEventListenerThisTranslator)
NS_INTERFACE_MAP_ENTRY(nsIXPCFunctionThisTranslator)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsEventListenerThisTranslator)
NS_IMPL_RELEASE(nsEventListenerThisTranslator)
NS_IMETHODIMP
nsEventListenerThisTranslator::TranslateThis(nsISupports *aInitialThis,
nsISupports **_retval)
{
nsCOMPtr<nsIDOMEvent> event(do_QueryInterface(aInitialThis));
NS_ENSURE_TRUE(event, NS_ERROR_UNEXPECTED);
nsCOMPtr<EventTarget> target = event->InternalDOMEvent()->GetCurrentTarget();
target.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
nsDOMConstructorSH::PreCreate(nsISupports *nativeObj, JSContext *cx,
JSObject *aGlobalObj, JSObject **parentObj)
{
JS::Rooted<JSObject*> globalObj(cx, aGlobalObj);
nsDOMConstructor *wrapped = static_cast<nsDOMConstructor *>(nativeObj);
#ifdef DEBUG
{
nsCOMPtr<nsIDOMDOMConstructor> is_constructor =
do_QueryInterface(nativeObj);
NS_ASSERTION(is_constructor, "How did we not get a constructor?");
}
#endif
return wrapped->PreCreate(cx, globalObj, parentObj);
}
NS_IMETHODIMP
nsDOMConstructorSH::Resolve(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *aObj, jsid aId, bool *resolvedp,
bool *_retval)
{
JS::Rooted<JSObject*> obj(cx, aObj);
JS::Rooted<jsid> id(cx, aId);
// For regular DOM constructors, we have our interface constants defined on
// us by nsWindowSH::GlobalResolve. However, XrayWrappers can't see these
// interface constants (as they look like expando properties) so we have to
// specially resolve those constants here, but only for Xray wrappers.
if (!ObjectIsNativeWrapper(cx, obj)) {
return NS_OK;
}
JS::Rooted<JSObject*> nativePropsObj(cx, xpc::XrayUtils::GetNativePropertiesObject(cx, obj));
nsDOMConstructor *wrapped =
static_cast<nsDOMConstructor *>(wrapper->Native());
nsresult rv = wrapped->ResolveInterfaceConstants(cx, nativePropsObj);
NS_ENSURE_SUCCESS(rv, rv);
// Now re-lookup the ID to see if we should report back that we resolved the
// looked-for constant. Note that we don't have to worry about infinitely
// recurring back here because the Xray wrapper's holder object doesn't call
// Resolve hooks.
bool found;
if (!JS_HasPropertyById(cx, nativePropsObj, id, &found)) {
*_retval = false;
return NS_OK;
}
if (found) {
*resolvedp = true;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMConstructorSH::Call(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *aObj, const JS::CallArgs &args, bool *_retval)
{
JS::Rooted<JSObject*> obj(cx, aObj);
MOZ_ASSERT(obj);
nsDOMConstructor *wrapped =
static_cast<nsDOMConstructor *>(wrapper->Native());
#ifdef DEBUG
{
nsCOMPtr<nsIDOMDOMConstructor> is_constructor =
do_QueryWrappedNative(wrapper);
NS_ASSERTION(is_constructor, "How did we not get a constructor?");
}
#endif
return wrapped->Construct(wrapper, cx, obj, args, _retval);
}
NS_IMETHODIMP
nsDOMConstructorSH::Construct(nsIXPConnectWrappedNative *wrapper, JSContext *cx,
JSObject *aObj, const JS::CallArgs &args, bool *_retval)
{
JS::Rooted<JSObject*> obj(cx, aObj);
MOZ_ASSERT(obj);
nsDOMConstructor *wrapped =
static_cast<nsDOMConstructor *>(wrapper->Native());
#ifdef DEBUG
{
nsCOMPtr<nsIDOMDOMConstructor> is_constructor =
do_QueryWrappedNative(wrapper);
NS_ASSERTION(is_constructor, "How did we not get a constructor?");
}
#endif
return wrapped->Construct(wrapper, cx, obj, args, _retval);
}
NS_IMETHODIMP
nsDOMConstructorSH::HasInstance(nsIXPConnectWrappedNative *wrapper,
JSContext *cx, JSObject *aObj, JS::Handle<JS::Value> val,
bool *bp, bool *_retval)
{
JS::Rooted<JSObject*> obj(cx, aObj);
nsDOMConstructor *wrapped =
static_cast<nsDOMConstructor *>(wrapper->Native());
#ifdef DEBUG
{
nsCOMPtr<nsIDOMDOMConstructor> is_constructor =
do_QueryWrappedNative(wrapper);
NS_ASSERTION(is_constructor, "How did we not get a constructor?");
}
#endif
return wrapped->HasInstance(wrapper, cx, obj, val, bp, _retval);
}
NS_IMETHODIMP
nsNonDOMObjectSH::GetFlags(uint32_t *aFlags)
{
// This is NOT a DOM Object. Use this helper class for cases when you need
// to do something like implement nsISecurityCheckedComponent in a meaningful
// way.
*aFlags = nsIClassInfo::MAIN_THREAD_ONLY | nsIClassInfo::SINGLETON_CLASSINFO;
return NS_OK;
}
// nsContentFrameMessageManagerSH
template<typename Super>
NS_IMETHODIMP
nsMessageManagerSH<Super>::Resolve(nsIXPConnectWrappedNative* wrapper,
JSContext* cx, JSObject* obj_,
jsid id_, bool* resolvedp,
bool* _retval)
{
JS::Rooted<JSObject*> obj(cx, obj_);
JS::Rooted<jsid> id(cx, id_);
*_retval = SystemGlobalResolve(cx, obj, id, resolvedp);
NS_ENSURE_TRUE(*_retval, NS_ERROR_FAILURE);
if (*resolvedp) {
return NS_OK;
}
return Super::Resolve(wrapper, cx, obj, id, resolvedp, _retval);
}
template<typename Super>
NS_IMETHODIMP
nsMessageManagerSH<Super>::Enumerate(nsIXPConnectWrappedNative* wrapper,
JSContext* cx, JSObject* obj_,
bool* _retval)
{
JS::Rooted<JSObject*> obj(cx, obj_);
*_retval = SystemGlobalEnumerate(cx, obj);
NS_ENSURE_TRUE(*_retval, NS_ERROR_FAILURE);
// Don't call up to our superclass, since neither nsDOMGenericSH nor
// nsEventTargetSH have WANT_ENUMERATE.
MOZ_ASSERT(!(this->GetScriptableFlags() & nsIXPCScriptable::WANT_ENUMERATE));
return NS_OK;
}
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