mirror of
https://github.com/mozilla/gecko-dev.git
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267 lines
9.0 KiB
C++
267 lines
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: set ts=2 sw=2 et tw=78:
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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*
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* This Original Code has been modified by IBM Corporation.
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* Modifications made by IBM described herein are
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* Copyright (c) International Business Machines
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* Corporation, 2000
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*
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* Modifications to Mozilla code or documentation
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* identified per MPL Section 3.3
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*
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* Date Modified by Description of modification
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* 03/27/2000 IBM Corp. Added PR_CALLBACK for Optlink
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* use in OS2
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*/
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#include "nsDOMScriptObjectFactory.h"
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#include "xpcexception.h"
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#include "nsScriptNameSpaceManager.h"
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#include "nsIObserverService.h"
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#include "nsJSEnvironment.h"
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#include "nsJSEventListener.h"
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#include "nsGlobalWindow.h"
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#include "nsIJSContextStack.h"
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#include "nsISupportsPrimitives.h"
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#include "nsDOMException.h"
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#include "nsCRT.h"
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#ifdef MOZ_XUL
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#include "nsXULPrototypeCache.h"
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#endif
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#include "nsThreadUtils.h"
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static NS_DEFINE_CID(kDOMScriptObjectFactoryCID, NS_DOM_SCRIPT_OBJECT_FACTORY_CID);
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nsIExceptionProvider* gExceptionProvider = nsnull;
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nsDOMScriptObjectFactory::nsDOMScriptObjectFactory()
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{
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nsCOMPtr<nsIObserverService> observerService =
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mozilla::services::GetObserverService();
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if (observerService) {
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observerService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
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}
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nsCOMPtr<nsIExceptionProvider> provider = new nsDOMExceptionProvider();
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nsCOMPtr<nsIExceptionService> xs =
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do_GetService(NS_EXCEPTIONSERVICE_CONTRACTID);
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if (xs) {
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xs->RegisterExceptionProvider(provider, NS_ERROR_MODULE_DOM);
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xs->RegisterExceptionProvider(provider, NS_ERROR_MODULE_SVG);
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xs->RegisterExceptionProvider(provider, NS_ERROR_MODULE_DOM_XPATH);
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xs->RegisterExceptionProvider(provider, NS_ERROR_MODULE_XPCONNECT);
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xs->RegisterExceptionProvider(provider, NS_ERROR_MODULE_DOM_INDEXEDDB);
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xs->RegisterExceptionProvider(provider, NS_ERROR_MODULE_DOM_FILEHANDLE);
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}
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NS_ASSERTION(!gExceptionProvider, "Registered twice?!");
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provider.swap(gExceptionProvider);
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// And pre-create the javascript language.
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NS_CreateJSRuntime(getter_AddRefs(mJSRuntime));
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}
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NS_INTERFACE_MAP_BEGIN(nsDOMScriptObjectFactory)
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NS_INTERFACE_MAP_ENTRY(nsIDOMScriptObjectFactory)
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NS_INTERFACE_MAP_ENTRY(nsIObserver)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMScriptObjectFactory)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsDOMScriptObjectFactory)
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NS_IMPL_RELEASE(nsDOMScriptObjectFactory)
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NS_IMETHODIMP_(nsISupports *)
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nsDOMScriptObjectFactory::GetClassInfoInstance(nsDOMClassInfoID aID)
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{
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return NS_GetDOMClassInfoInstance(aID);
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}
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NS_IMETHODIMP_(nsISupports *)
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nsDOMScriptObjectFactory::GetExternalClassInfoInstance(const nsAString& aName)
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{
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nsScriptNameSpaceManager *nameSpaceManager = nsJSRuntime::GetNameSpaceManager();
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NS_ENSURE_TRUE(nameSpaceManager, nsnull);
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const nsGlobalNameStruct *globalStruct = nameSpaceManager->LookupName(aName);
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if (globalStruct) {
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if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfoCreator) {
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nsresult rv;
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nsCOMPtr<nsIDOMCIExtension> creator(do_CreateInstance(globalStruct->mCID, &rv));
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NS_ENSURE_SUCCESS(rv, nsnull);
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rv = creator->RegisterDOMCI(NS_ConvertUTF16toUTF8(aName).get(), this);
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NS_ENSURE_SUCCESS(rv, nsnull);
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globalStruct = nameSpaceManager->LookupName(aName);
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NS_ENSURE_TRUE(globalStruct, nsnull);
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NS_ASSERTION(globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo,
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"The classinfo data for this class didn't get registered.");
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}
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if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
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return nsDOMClassInfo::GetClassInfoInstance(globalStruct->mData);
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}
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}
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return nsnull;
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}
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NS_IMETHODIMP
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nsDOMScriptObjectFactory::Observe(nsISupports *aSubject,
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const char *aTopic,
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const PRUnichar *someData)
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{
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if (!nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
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#ifdef MOZ_XUL
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// Flush the XUL cache since it holds JS roots, and we're about to
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// start the final GC.
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nsXULPrototypeCache* cache = nsXULPrototypeCache::GetInstance();
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if (cache)
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cache->Flush();
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#endif
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nsGlobalWindow::ShutDown();
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nsDOMClassInfo::ShutDown();
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if (gExceptionProvider) {
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nsCOMPtr<nsIExceptionService> xs =
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do_GetService(NS_EXCEPTIONSERVICE_CONTRACTID);
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if (xs) {
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xs->UnregisterExceptionProvider(gExceptionProvider,
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NS_ERROR_MODULE_DOM);
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xs->UnregisterExceptionProvider(gExceptionProvider,
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NS_ERROR_MODULE_SVG);
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xs->UnregisterExceptionProvider(gExceptionProvider,
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NS_ERROR_MODULE_DOM_XPATH);
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xs->UnregisterExceptionProvider(gExceptionProvider,
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NS_ERROR_MODULE_XPCONNECT);
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xs->UnregisterExceptionProvider(gExceptionProvider,
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NS_ERROR_MODULE_DOM_INDEXEDDB);
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xs->UnregisterExceptionProvider(gExceptionProvider,
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NS_ERROR_MODULE_DOM_FILEHANDLE);
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}
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NS_RELEASE(gExceptionProvider);
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}
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}
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return NS_OK;
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}
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static nsresult
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CreateXPConnectException(nsresult aResult, nsIException *aDefaultException,
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nsIException **_retval)
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{
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// See whether we already have a useful XPConnect exception. If we
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// do, let's not create one with _less_ information!
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nsCOMPtr<nsIXPCException> exception(do_QueryInterface(aDefaultException));
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if (!exception) {
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nsresult rv = NS_OK;
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exception = do_CreateInstance("@mozilla.org/js/xpc/Exception;1", &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = exception->Initialize(nsnull, aResult, nsnull, nsnull, nsnull,
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nsnull);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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exception.forget(_retval);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMScriptObjectFactory::RegisterDOMClassInfo(const char *aName,
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nsDOMClassInfoExternalConstructorFnc aConstructorFptr,
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const nsIID *aProtoChainInterface,
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const nsIID **aInterfaces,
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PRUint32 aScriptableFlags,
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bool aHasClassInterface,
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const nsCID *aConstructorCID)
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{
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nsScriptNameSpaceManager *nameSpaceManager = nsJSRuntime::GetNameSpaceManager();
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NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
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return nameSpaceManager->RegisterDOMCIData(aName,
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aConstructorFptr,
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aProtoChainInterface,
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aInterfaces,
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aScriptableFlags,
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aHasClassInterface,
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aConstructorCID);
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}
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// Factories
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nsresult
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NS_GetJSRuntime(nsIScriptRuntime** aLanguage)
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{
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nsCOMPtr<nsIDOMScriptObjectFactory> factory =
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do_GetService(kDOMScriptObjectFactoryCID);
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NS_ENSURE_TRUE(factory, NS_ERROR_FAILURE);
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NS_IF_ADDREF(*aLanguage = factory->GetJSRuntime());
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return NS_OK;
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}
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nsresult NS_GetScriptRuntime(const nsAString &aLanguageName,
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nsIScriptRuntime **aLanguage)
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{
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*aLanguage = NULL;
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NS_ENSURE_TRUE(aLanguageName.EqualsLiteral("application/javascript"),
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NS_ERROR_FAILURE);
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return NS_GetJSRuntime(aLanguage);
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}
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nsresult NS_GetScriptRuntimeByID(PRUint32 aScriptTypeID,
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nsIScriptRuntime **aLanguage)
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{
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*aLanguage = NULL;
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NS_ENSURE_TRUE(aScriptTypeID == nsIProgrammingLanguage::JAVASCRIPT,
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NS_ERROR_FAILURE);
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return NS_GetJSRuntime(aLanguage);
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}
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NS_IMPL_THREADSAFE_ISUPPORTS1(nsDOMExceptionProvider, nsIExceptionProvider)
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NS_IMETHODIMP
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nsDOMExceptionProvider::GetException(nsresult result,
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nsIException *aDefaultException,
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nsIException **_retval)
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{
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if (!NS_IsMainThread()) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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switch (NS_ERROR_GET_MODULE(result))
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{
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case NS_ERROR_MODULE_SVG:
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return NS_NewSVGException(result, aDefaultException, _retval);
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case NS_ERROR_MODULE_DOM_XPATH:
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return NS_NewXPathException(result, aDefaultException, _retval);
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case NS_ERROR_MODULE_XPCONNECT:
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return CreateXPConnectException(result, aDefaultException, _retval);
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default:
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MOZ_ASSERT(NS_ERROR_GET_MODULE(result) == NS_ERROR_MODULE_DOM ||
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NS_ERROR_GET_MODULE(result) == NS_ERROR_MODULE_DOM_FILE ||
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NS_ERROR_GET_MODULE(result) == NS_ERROR_MODULE_DOM_INDEXEDDB ||
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NS_ERROR_GET_MODULE(result) == NS_ERROR_MODULE_DOM_FILEHANDLE,
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"Trying to create an exception for the wrong error module.");
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return NS_NewDOMException(result, aDefaultException, _retval);
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}
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NS_NOTREACHED("Not reached");
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return NS_ERROR_UNEXPECTED;
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}
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