gecko-dev/dom/base/nsDOMScriptObjectFactory.cpp

128 строки
4.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
*
* This Original Code has been modified by IBM Corporation.
* Modifications made by IBM described herein are
* Copyright (c) International Business Machines
* Corporation, 2000
*
* Modifications to Mozilla code or documentation
* identified per MPL Section 3.3
*
* Date Modified by Description of modification
* 03/27/2000 IBM Corp. Added PR_CALLBACK for Optlink
* use in OS2
*/
#include "nsDOMScriptObjectFactory.h"
#include "nsScriptNameSpaceManager.h"
#include "nsIObserverService.h"
#include "nsJSEnvironment.h"
#include "nsGlobalWindow.h"
#include "nsCRT.h"
#ifdef MOZ_XUL
#include "nsXULPrototypeCache.h"
#endif
#include "nsThreadUtils.h"
using mozilla::dom::GetNameSpaceManager;
nsDOMScriptObjectFactory::nsDOMScriptObjectFactory()
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
}
}
NS_INTERFACE_MAP_BEGIN(nsDOMScriptObjectFactory)
NS_INTERFACE_MAP_ENTRY(nsIDOMScriptObjectFactory)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMScriptObjectFactory)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMScriptObjectFactory)
NS_IMPL_RELEASE(nsDOMScriptObjectFactory)
NS_IMETHODIMP_(nsISupports *)
nsDOMScriptObjectFactory::GetClassInfoInstance(nsDOMClassInfoID aID)
{
return NS_GetDOMClassInfoInstance(aID);
}
NS_IMETHODIMP_(nsISupports *)
nsDOMScriptObjectFactory::GetExternalClassInfoInstance(const nsAString& aName)
{
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, nullptr);
const nsGlobalNameStruct *globalStruct = nameSpaceManager->LookupName(aName);
if (globalStruct) {
if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfoCreator) {
nsresult rv;
nsCOMPtr<nsIDOMCIExtension> creator(do_CreateInstance(globalStruct->mCID, &rv));
NS_ENSURE_SUCCESS(rv, nullptr);
rv = creator->RegisterDOMCI(NS_ConvertUTF16toUTF8(aName).get(), this);
NS_ENSURE_SUCCESS(rv, nullptr);
globalStruct = nameSpaceManager->LookupName(aName);
NS_ENSURE_TRUE(globalStruct, nullptr);
NS_ASSERTION(globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo,
"The classinfo data for this class didn't get registered.");
}
if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
return nsDOMClassInfo::GetClassInfoInstance(globalStruct->mData);
}
}
return nullptr;
}
NS_IMETHODIMP
nsDOMScriptObjectFactory::Observe(nsISupports *aSubject,
const char *aTopic,
const char16_t *someData)
{
if (!nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
#ifdef MOZ_XUL
// Flush the XUL cache since it holds JS roots, and we're about to
// start the final GC.
nsXULPrototypeCache* cache = nsXULPrototypeCache::GetInstance();
if (cache)
cache->Flush();
#endif
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMScriptObjectFactory::RegisterDOMClassInfo(const char *aName,
nsDOMClassInfoExternalConstructorFnc aConstructorFptr,
const nsIID *aProtoChainInterface,
const nsIID **aInterfaces,
uint32_t aScriptableFlags,
bool aHasClassInterface,
const nsCID *aConstructorCID)
{
nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
return nameSpaceManager->RegisterDOMCIData(aName,
aConstructorFptr,
aProtoChainInterface,
aInterfaces,
aScriptableFlags,
aHasClassInterface,
aConstructorCID);
}