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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Author:
* Adam Lock <adamlock@netscape.com>
*
* Contributor(s):
*/
#include "nsIServiceManager.h"
#include "nsIComponentRegistrar.h"
#include "nsIAppStartupNotifier.h"
#include "nsIStringBundle.h"
#include "nsIDirectoryService.h"
#include "nsDirectoryServiceDefs.h"
#include "nsEmbedAPI.h"
#include "nsLiteralString.h"
static nsIServiceManager *sServiceManager = nsnull;
static PRBool sRegistryInitializedFlag = PR_FALSE;
static PRUint32 sInitCounter = 0;
#define HACK_AROUND_THREADING_ISSUES
//#define HACK_AROUND_NONREENTRANT_INITXPCOM
#ifdef HACK_AROUND_NONREENTRANT_INITXPCOM
// XXX hack class to clean up XPCOM when this module is unloaded
class XPCOMCleanupHack
{
public:
PRBool mCleanOnExit;
XPCOMCleanupHack() : mCleanOnExit(PR_FALSE) {}
~XPCOMCleanupHack()
{
if (mCleanOnExit)
{
if (sInitCounter > 0)
{
sInitCounter = 1;
NS_TermEmbedding();
}
// XXX Global destructors and NS_ShutdownXPCOM don't seem to mix
// NS_ShutdownXPCOM(sServiceManager);
}
}
};
static PRBool sXPCOMInitializedFlag = PR_FALSE;
static XPCOMCleanupHack sXPCOMCleanupHack;
#endif
nsresult NS_InitEmbedding(nsILocalFile *mozBinDirectory,
nsIDirectoryServiceProvider *appFileLocProvider)
{
nsresult rv;
// Reentrant calls to this method do nothing except increment a counter
sInitCounter++;
if (sInitCounter > 1)
return NS_OK;
// Initialise XPCOM
#ifdef HACK_AROUND_NONREENTRANT_INITXPCOM
// Can't call NS_InitXPCom more than once or things go boom!
if (!sXPCOMInitializedFlag)
#endif
{
// Initialise XPCOM
rv = NS_InitXPCOM2(&sServiceManager, mozBinDirectory, appFileLocProvider);
NS_ENSURE_SUCCESS(rv, rv);
#ifdef HACK_AROUND_NONREENTRANT_INITXPCOM
sXPCOMInitializedFlag = PR_TRUE;
sXPCOMCleanupHack.mCleanOnExit = PR_TRUE;
#endif
}
// Register components
if (!sRegistryInitializedFlag)
{
nsCOMPtr<nsIComponentRegistrar> registrar = do_QueryInterface(sServiceManager, &rv);
if (NS_FAILED(rv))
{
NS_WARNING("Could not QI to registrar");
return rv;
}
#ifdef DEBUG
rv = registrar->AutoRegister(nsnull);
if (NS_FAILED(rv))
{
NS_WARNING("Could not AutoRegister");
return rv;
}
// If the application is using an GRE, then,
// auto register components in the GRE directory as well.
//
// The application indicates that it's using an GRE by
// returning a valid nsIFile when queried (via appFileLocProvider)
// for the NS_GRE_DIR atom as shown below
//
if (appFileLocProvider)
{
nsCOMPtr<nsIFile> greDir;
PRBool persistent = PR_TRUE;
appFileLocProvider->GetFile(NS_GRE_DIR, &persistent, getter_AddRefs(greDir));
if (greDir)
{
rv = registrar->AutoRegister(greDir);
NS_ASSERTION(NS_SUCCEEDED(rv), "Could not AutoRegister GRE components");
}
}
#endif
sRegistryInitializedFlag = PR_TRUE;
}
nsCOMPtr<nsIObserver> mStartupNotifier = do_CreateInstance(NS_APPSTARTUPNOTIFIER_CONTRACTID, &rv);
if(NS_FAILED(rv))
return rv;
mStartupNotifier->Observe(nsnull, APPSTARTUP_TOPIC, nsnull);
#ifdef HACK_AROUND_THREADING_ISSUES
// XXX force certain objects to be created on the main thread
nsCOMPtr<nsIStringBundleService> sBundleService;
sBundleService = do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv))
{
nsCOMPtr<nsIStringBundle> stringBundle;
const char propertyURL[] = "chrome://necko/locale/necko.properties";
rv = sBundleService->CreateBundle(propertyURL,
getter_AddRefs(stringBundle));
}
#endif
return NS_OK;
}
nsresult NS_TermEmbedding()
{
// Reentrant calls to this method do nothing except decrement a counter
if (sInitCounter > 1)
{
sInitCounter--;
return NS_OK;
}
sInitCounter = 0;
NS_IF_RELEASE(sServiceManager);
// Terminate XPCOM & cleanup
#ifndef HACK_AROUND_NONREENTRANT_INITXPCOM
nsresult rv = NS_ShutdownXPCOM(sServiceManager);
NS_ENSURE_SUCCESS(rv, rv);
#endif
return NS_OK;
}
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