gecko-dev/xpfe/bootstrap/nsAppRunner.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape 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/NPL/
 *
 * 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 Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is Netscape Communications
 * Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 *   Pierre Phaneuf <pp@ludusdesign.com>
 */
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsIWidget.h"
#include "nsIBrowserWindow.h"
#include "nsIWebShellWindow.h"
#include "nsIPref.h"
#include "plevent.h"
#include "prmem.h"

#include "nsIAppShell.h"
#include "nsICmdLineService.h"
#include "nsIThread.h"
#include "nsIAppShellService.h"
#include "nsIAppShellComponent.h"
#include "nsAppShellCIDs.h"
#include "prprf.h"
#include "nsCRT.h"
#include "nsFileSpec.h"
#include "nsIFileSpec.h"
#include "nsIFileLocator.h"
#include "nsFileLocations.h"
#include "nsFileStream.h"
#include "nsSpecialSystemDirectory.h"
#include "nsIWalletService.h"
#include "nsIWebShell.h"
#include "nsICookieService.h"
#include "nsIWindowMediator.h"
#include "nsIDOMWindow.h"
#include "nsIClipboard.h"
#include "nsISoftwareUpdate.h"
#include "nsSoftwareUpdateIIDs.h"

static NS_DEFINE_CID(kSoftUpdateCID,     NS_SoftwareUpdate_CID);
static NS_DEFINE_IID(kIWindowMediatorIID,NS_IWINDOWMEDIATOR_IID);
static NS_DEFINE_CID(kWindowMediatorCID, NS_WINDOWMEDIATOR_CID);
static NS_DEFINE_CID(kWalletServiceCID,     NS_WALLETSERVICE_CID);

#define PREF_GENERAL_STARTUP_BROWSER "general.startup.browser"
#define PREF_GENERAL_STARTUP_MAIL "general.startup.mail"
#define PREF_GENERAL_STARTUP_NEWS "general.startup.news"
#define PREF_GENERAL_STARTUP_EDITOR "general.startup.editor"
#define PREF_GENERAL_STARTUP_CALENDAR "general.startup.calendar"

#ifdef DEBUG
#include "prlog.h"
#endif

#ifdef MOZ_FULLCIRCLE
#include "fullsoft.h"
#endif

#ifdef MOZ_JPROF
#include "jprof.h"
#endif

// header file for profile manager
#include "nsIProfile.h"

#if defined(XP_UNIX)
  extern void InstallUnixSignalHandlers(const char *ProgramName);
#endif

#if defined(XP_MAC)

#include "macstdlibextras.h"
#include <TextServices.h>

// Set up the toolbox and (if DEBUG) the console.  Do this in a static initializer,
// to make it as unlikely as possible that somebody calls printf() before we get initialized.
static struct MacInitializer { MacInitializer() { InitializeMacToolbox(); } } gInitializer;


class stTSMCloser
{
public:
	stTSMCloser()
  {
    // TSM is initialized in InitializeMacToolbox
  };
	
	~stTSMCloser()
	{
		(void)CloseTSMAwareApplication();
	}
};
#endif // XP_MAC

/* Define Class IDs */
static NS_DEFINE_CID(kAppShellServiceCID,   NS_APPSHELL_SERVICE_CID);
static NS_DEFINE_CID(kCmdLineServiceCID,    NS_COMMANDLINE_SERVICE_CID);
static NS_DEFINE_CID(kPrefCID,              NS_PREF_CID);
static NS_DEFINE_CID(kFileLocatorCID,       NS_FILELOCATOR_CID);
static NS_DEFINE_CID(kProfileCID,           NS_PROFILE_CID);

#include "nsNativeAppSupport.h"

/*********************************************/
// Default implemenations for nativeAppSupport
// If your platform implements these functions if def out this code.
#if !defined (XP_MAC )
void NS_ShowSplashScreen()
{	
}

void NS_HideSplashScreen()
{
}

PRBool NS_CanRun() 
{
	return PR_TRUE;
}
#endif 
/*
 * This routine translates the nsresult into a platform specific return
 * code for the application...
 */
static int TranslateReturnValue(nsresult aResult)
{
  if (NS_SUCCEEDED(aResult)) {
    return 0;
  }
  return 1;
}

#ifdef XP_MAC
#include "nsCommandLineServiceMac.h"
#endif

extern "C" void NS_SetupRegistry_1();

static void
PrintUsage(void)
{
  fprintf(stderr, "Usage: apprunner <url>\n");
  fprintf(stderr, "\t<url>:  a fully defined url string like http:// etc..\n");
}

//----------------------------------------------------------------------------------------
static void InitFullCircle()
{
  // initialization for Full Circle
#ifdef MOZ_FULLCIRCLE
  FC_ERROR fcstatus = FC_ERROR_FAILED;
  fcstatus = FCInitialize();
	  
  // Print out error status.
  switch(fcstatus)
  {
    case FC_ERROR_OK:
      printf("Talkback loaded Ok.\n");
      break;
    case FC_ERROR_CANT_INITIALIZE:
      printf("Talkback error: Can't initialize.\n");
      break;
    case FC_ERROR_NOT_INITIALIZED:
      printf("Talkback error: Not initialized.\n");
      break;
    case FC_ERROR_ALREADY_INITIALIZED:
      printf("Talkback error: Already initialized.\n");
      break;
    case FC_ERROR_FAILED:
      printf("Talkback error: Failure.\n");
      break;
    case FC_ERROR_OUT_OF_MEMORY:
      printf("Talkback error: Out of memory.\n");
      break;
    case FC_ERROR_INVALID_PARAMETER:
      printf("Talkback error: Invalid parameter.\n");
      break;
    default:
      printf("Talkback error: Unknown error status.\n");
      break;
  }
#endif
}

static nsresult OpenWindow( const char*urlstr, const PRUnichar *args ) {
    nsresult rv;
    NS_WITH_SERVICE(nsIAppShellService, appShellService, kAppShellServiceCID, &rv)
    if ( NS_SUCCEEDED( rv ) ) {
        nsCOMPtr<nsIDOMWindow> hiddenWindow;
        JSContext *jsContext;
        rv = appShellService->GetHiddenWindowAndJSContext( getter_AddRefs( hiddenWindow ),
                                                           &jsContext );
        if ( NS_SUCCEEDED( rv ) ) {
            void *stackPtr;
            jsval *argv = JS_PushArguments( jsContext,
                                            &stackPtr,
                                            "sssW",
                                            urlstr,
                                            "_blank",
                                            "chrome,dialog=no,all",
                                            args );
            if( argv ) {
                nsCOMPtr<nsIDOMWindow> newWindow;
                rv = hiddenWindow->OpenDialog( jsContext,
                                               argv,
                                               4,
                                               getter_AddRefs( newWindow ) );
                JS_PopArguments( jsContext, stackPtr );
            }
        }
    }
    return rv;
}

static nsresult HandleEditorStartup( nsICmdLineService* cmdLineArgs, nsIPref *prefs,  PRBool heedGeneralStartupPrefs)
{
	char* cmdResult = nsnull;
	char *  urlstr=nsnull;
	nsString withArgs;
	nsresult rv;
	PRBool forceLaunchEditor = PR_FALSE;

	if (heedGeneralStartupPrefs) {
		prefs->GetBoolPref(PREF_GENERAL_STARTUP_EDITOR,&forceLaunchEditor);
	}
  
	rv = cmdLineArgs->GetCmdLineValue("-edit", &cmdResult);
  if (NS_SUCCEEDED(rv))
  {
    if (forceLaunchEditor || cmdResult) {
      urlstr = "chrome://editor/content/";
      if (cmdResult) {
        if (PL_strcmp("1",cmdResult)==0) {
          // this signals no URL after "-edit"?
          withArgs = "about:blank";
        } else {
          // We have a URL -- Should we do some URL validating here?
          withArgs = cmdResult;
        }
      }     
      OpenWindow( urlstr, withArgs.GetUnicode() );
    }
  }
    
	return NS_OK;
}

static nsresult OpenChromURL( char * urlstr, PRInt32 height = NS_SIZETOCONTENT, PRInt32 width = NS_SIZETOCONTENT )
{
	nsIURI* url = nsnull;
	nsresult  rv;
	rv = NS_NewURI(&url, urlstr);
	if ( NS_FAILED( rv ) )
		return rv;
	nsCOMPtr<nsIWebShellWindow> newWindow;
	NS_WITH_SERVICE(nsIAppShellService, appShell, kAppShellServiceCID, &rv);
 	rv = appShell->CreateTopLevelWindow(nsnull, url,
                                      PR_TRUE, PR_TRUE, NS_CHROME_ALL_CHROME,
                                      nsnull, width, height,
                                      getter_AddRefs(newWindow));
  NS_IF_RELEASE( url );
  return rv;
}

static nsresult HandleMailStartup( nsICmdLineService* cmdLineArgs, nsIPref *prefs,  PRBool heedGeneralStartupPrefs)
{
	char* cmdResult = nsnull;
	char *  urlstr=nsnull;
	nsString withArgs;
	nsresult rv;
	PRBool forceLaunchMail = PR_FALSE;
	PRBool forceLaunchNews = PR_FALSE;

	
	PRInt32 height  = NS_SIZETOCONTENT;
	PRInt32 width  = NS_SIZETOCONTENT;
	// Get the value of -width option
	char* tempString = NULL;
	rv = cmdLineArgs->GetCmdLineValue("-width", &tempString);
	if (NS_FAILED(rv))
    return rv;
	
	if (tempString)
    PR_sscanf(tempString, "%d", &width);
	  
	// Get the value of -height option
	rv = cmdLineArgs->GetCmdLineValue("-height", &tempString);
	if (NS_FAILED(rv))
		return rv;
	  
	if (tempString)
		PR_sscanf(tempString, "%d", &height);
	  
	

  if (heedGeneralStartupPrefs) {
                prefs->GetBoolPref(PREF_GENERAL_STARTUP_MAIL,&forceLaunchMail);
  }    
  rv = cmdLineArgs->GetCmdLineValue("-mail", &cmdResult);
  if (NS_SUCCEEDED(rv))
  {
    if (forceLaunchMail || (cmdResult && (PL_strcmp("1",cmdResult)==0)))
    {
      OpenChromURL("chrome://messenger/content/", height, width);
          
    }
  }


  if (heedGeneralStartupPrefs) {
                prefs->GetBoolPref(PREF_GENERAL_STARTUP_NEWS,&forceLaunchNews);
  }    
  rv = cmdLineArgs->GetCmdLineValue("-news", &cmdResult);
  if (NS_SUCCEEDED(rv))
  {
    if (forceLaunchNews || (cmdResult && (PL_strcmp("1",cmdResult)==0)))
      OpenChromURL("chrome://messenger/content/", height, width);
  }
	
  rv = cmdLineArgs->GetCmdLineValue("-compose", &cmdResult);
  if (NS_SUCCEEDED(rv))
  {
    if (cmdResult && (PL_strcmp("1",cmdResult)==0))
    {
      urlstr = "chrome://messengercompose/content/";
      withArgs = "about:blank";
  	  
      OpenWindow( urlstr, withArgs.GetUnicode() );
    }
  }
	
  rv = cmdLineArgs->GetCmdLineValue("-addressbook", &cmdResult);
  if (NS_SUCCEEDED(rv))
  {
    if (cmdResult && (PL_strcmp("1",cmdResult)==0))
      OpenChromURL("chrome://addressbook/content/",height, width);
  }
	
	return NS_OK;    
}

static nsresult HandleBrowserStartup( nsICmdLineService* cmdLineArgs, nsIPref *prefs,  PRBool heedGeneralStartupPrefs)
{
	char* cmdResult = nsnull;
	
	nsString withArgs;
	nsresult rv;
	PRBool forceLaunchBrowser = PR_FALSE;
	
	PRInt32 height  = NS_SIZETOCONTENT;
	PRInt32 width  = NS_SIZETOCONTENT;
	// Get the value of -width option
	char* tempString = NULL;
	rv = cmdLineArgs->GetCmdLineValue("-width", &tempString);
	if (NS_FAILED(rv))
    return rv;
	
	if (tempString)
    PR_sscanf(tempString, "%d", &width);
	
	  
	// Get the value of -height option
	rv = cmdLineArgs->GetCmdLineValue("-height", &tempString);
	if (NS_FAILED(rv))
		return rv;
	
	  
	if (tempString)
		PR_sscanf(tempString, "%d", &height);
	
  if (heedGeneralStartupPrefs) {
  	prefs->GetBoolPref(PREF_GENERAL_STARTUP_BROWSER,&forceLaunchBrowser);
  }  
  rv = cmdLineArgs->GetCmdLineValue("-chrome", &cmdResult); 
  if (forceLaunchBrowser) {
	rv = OpenChromURL("chrome://navigator/content/", height, width ); 
  }
  else if (NS_SUCCEEDED(rv) && cmdResult) {
    rv = OpenChromURL(cmdResult, height, width);
  }
  
	return rv;    
}

// This should be done by app shell enumeration someday
static nsresult DoCommandLines( nsICmdLineService* cmdLine, PRBool heedGeneralStartupPrefs )
{
	nsresult  rv;
	
	NS_WITH_SERVICE(nsIPref, prefs, kPrefCID, &rv); 
	if (NS_FAILED(rv)) return rv;

	rv = HandleEditorStartup( cmdLine, prefs, heedGeneralStartupPrefs);
	if ( NS_FAILED( rv ) ) return rv;
		
	rv = HandleMailStartup( cmdLine, prefs, heedGeneralStartupPrefs);
	if ( NS_FAILED( rv ) ) return rv;
	
	rv = HandleBrowserStartup( cmdLine, prefs, heedGeneralStartupPrefs);
	return rv;
}

static nsresult Ensure1Window( nsICmdLineService* cmdLineArgs)
{
	nsresult rv;
	NS_WITH_SERVICE(nsIWindowMediator, windowMediator, kWindowMediatorCID, &rv);
	nsCOMPtr<nsISimpleEnumerator> windowEnumerator;

  if (NS_SUCCEEDED(windowMediator->GetEnumerator(nsnull, getter_AddRefs(windowEnumerator))))
  {
    PRBool more;
	      
    windowEnumerator->HasMoreElements(&more);
    if ( !more )
    {
      // No window exists so lets create a browser one
      PRInt32 height  = NS_SIZETOCONTENT;
      PRInt32 width  = NS_SIZETOCONTENT;
				
      // Get the value of -width option
      char* tempString = NULL;
      rv = cmdLineArgs->GetCmdLineValue("-width", &tempString);
      if (NS_FAILED(rv))
        return rv;
      if (tempString)
        PR_sscanf(tempString, "%d", &width);
				
				  
      // Get the value of -height option
      rv = cmdLineArgs->GetCmdLineValue("-height", &tempString);
      if (NS_FAILED(rv))
        return rv;

      if (tempString)
        PR_sscanf(tempString, "%d", &height);
				 
				
      rv = OpenChromURL("chrome://navigator/content/", height, width );
    }
	}
	return rv;
}

#ifdef DEBUG_warren
#ifdef XP_PC
#define _CRTDBG_MAP_ALLOC
#include <crtdbg.h>
#endif
#endif

#if defined(FREEBSD)
// pick up fpsetmask prototype.
#include <floatingpoint.h>
#endif

static nsresult main1(int argc, char* argv[])
{
  nsresult rv;

#ifdef DEBUG_warren
//  _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_CHECK_ALWAYS_DF);
#endif


#ifndef XP_MAC
  // Unbuffer debug output (necessary for automated QA performance scripts).
  setbuf( stdout, 0 );
#endif

#if defined(FREEBSD)
  // Disable all SIGFPE's on FreeBSD, as it has non-IEEE-conformant fp
  // trap behavior that trips up on floating-point tests performed by
  // the JS engine.  See bugzilla bug 9967 details.
  fpsetmask(0);
#endif
   
  InitFullCircle();

 #if XP_MAC 
    stTSMCloser  tsmCloser;
  
  InitializeMacCommandLine( argc, argv);

 #endif

  // XXX: This call will be replaced by a registry initialization...
  NS_SetupRegistry_1();

  // Start up the core services:

  // Initialize the cmd line service
  NS_WITH_SERVICE(nsICmdLineService, cmdLineArgs, kCmdLineServiceCID, &rv);
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to get command line service");
 
  if (NS_FAILED(rv)) {
    fprintf(stderr, "Could not obtain CmdLine processing service\n");
    return rv;
  }
 
  rv = cmdLineArgs->Initialize(argc, argv);
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to initialize command line args");
  if (rv  == NS_ERROR_INVALID_ARG) {
    PrintUsage();
    return rv;
  }

  // Create the Application Shell instance...
  NS_WITH_SERVICE(nsIAppShellService, appShell, kAppShellServiceCID, &rv);
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to get the appshell service");
  if (NS_FAILED(rv)) {
    return rv;
  }

  rv = appShell->Initialize( cmdLineArgs );
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to initialize appshell");
  if ( NS_FAILED(rv) ) return rv; 

#ifdef DEBUG
  printf("initialized appshell\n");
#endif

  NS_WITH_SERVICE(nsIProfile, profileMgr, kProfileCID, &rv);
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to get profile manager");
  if ( NS_FAILED(rv) ) return rv; 

  rv = profileMgr->StartupWithArgs(cmdLineArgs);
  if (NS_FAILED(rv)) {
	return rv;
  }

  // if we get here, and we don't have a current profile, return a failure so we will exit
  // this can happen, if the user hits Cancel or Exit in the profile manager dialogs
  char *currentProfileStr = nsnull;
  rv = profileMgr->GetCurrentProfile(&currentProfileStr);
  if (NS_FAILED(rv) || !currentProfileStr || (PL_strlen(currentProfileStr) == 0)) {
  	return NS_ERROR_FAILURE;
  }
  PR_FREEIF(currentProfileStr);   

  // rjc: now must explicitly call appshell's CreateHiddenWindow() function AFTER profile manager.
  //      if the profile manager ever switches to using nsIDOMWindow stuff, this might have to change
  appShell->CreateHiddenWindow();

#ifdef NS_BUILD_REFCNT_LOGGING  
  nsTraceRefcnt::SetPrefServiceAvailability(PR_TRUE);
#endif

  // fire up an instance of the cookie manager.
  // I'm doing this using the serviceManager for convenience's sake.
  // Presumably an application will init it's own cookie service a 
  // different way (this way works too though).
  nsCOMPtr<nsICookieService> cookieService = do_GetService(NS_COOKIESERVICE_PROGID, &rv);
  // quiet the compiler
  (void)cookieService;
  
	// Enumerate AppShellComponenets
	appShell->EnumerateAndInitializeComponents();
	
	// This will go away once Components are handling there own commandlines
	// if we have no command line arguments, we need to heed the
	// "general.startup.*" prefs
	// if we had no command line arguments, argc == 1.
	rv = DoCommandLines( cmdLineArgs, (argc == 1) );
    NS_ASSERTION(NS_SUCCEEDED(rv), "failed to process command line");
	if ( NS_FAILED(rv) )
    return rv;
     
  // Make sure there exists at least 1 window. 
  rv = Ensure1Window( cmdLineArgs );
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to Ensure1Window");
  if (NS_FAILED(rv)) return rv;

  // Fire up the walletService
  NS_WITH_SERVICE(nsIWalletService, walletService, kWalletServiceCID, &rv);
  if ( NS_SUCCEEDED(rv) )
      walletService->WALLET_FetchFromNetCenter();

  NS_HideSplashScreen();
  // Start main event loop
  rv = appShell->Run();
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to run appshell");
  
  /*
   * Shut down the Shell instance...  This is done even if the Run(...)
   * method returned an error.
   */
  (void) appShell->Shutdown();

  return rv ;
}


// English text needs to go into a dtd file.
static
void DumpHelp(char *appname)
{
	printf("Usage: %s [ options ... ] [URL]\n", appname);
  printf("       where options include:\n");
  printf("\n");
  printf("  -addressbook     Start with AddressBook window.\n");
  printf("  -chrome <url>    Open chrome url..\n");
  printf("  -compose         Start with mail compose window.\n");
  printf("  -edit            Start with editor.\n");
  printf("  -height <value>  Set height of startup window to <value>.\n");
  printf("  -h or -help      Print this message.\n");
  printf("  -installer       Start with 4.x migration window.\n");
  printf("  -mail            Start with mail window.\n");
  printf("  -news            Start with news window.\n");
  printf("  -pref            Start with pref window.\n");
  printf("  -width <value>   Set width of startup window to <value>.\n");
  printf("  -v or -version   Print %s version.\n", appname);
  printf("  -CreateProfile <profile>    Create and start with <profile>.\n");
  printf("  -P <profile>     Start with <profile>.\n");
  printf("  -ProfileWizard   Start with profile wizard.\n");
  printf("  -ProfileManager  Start with profile manager.\n");
  printf("  -SelectProfile   Start with profile selection dialog.\n");
}

static
void DumpVersion(char *appname)
{
	printf("%s: version info\n", appname);
}


int main(int argc, char* argv[])
{
#if defined(XP_UNIX)
  InstallUnixSignalHandlers(argv[0]);
#endif

  nsresult rv;

  /* -help and -version should return quick */
  if (argc == 2) {
	if ((PL_strcmp(argv[1], "-h") == 0) || (PL_strcmp(argv[1], "-help") == 0) || (PL_strcmp(argv[1], "--help") == 0)) {
		DumpHelp(argv[0]);
		return 0;
	}
	else if ((PL_strcmp(argv[1], "-v") == 0) || (PL_strcmp(argv[1], "-version") == 0) || (PL_strcmp(argv[1], "--version") == 0)) {
		DumpVersion(argv[0]);
		return 0;
	}
  }
    
  // Call the code to install our handler
#ifdef MOZ_JPROF
  setupProfilingStuff();
#endif

  if( !NS_CanRun() )
    return 1; 
  NS_ShowSplashScreen();
  rv = NS_InitXPCOM(NULL, NULL);
  NS_ASSERTION( NS_SUCCEEDED(rv), "NS_InitXPCOM failed" );

  {
    //----------------------------------------------------------------
    // XPInstall needs to clean up after any updates that couldn't
    // be completed because components were in use. This must be done 
    // **BEFORE** any other components are loaded!
    //
    // Will also check to see if AutoReg is required due to version
    // change or installation of new components
    //
    // (scoped in a block to force release of COMPtr)
    //----------------------------------------------------------------
    nsCOMPtr<nsISoftwareUpdate> su = do_GetService(kSoftUpdateCID,&rv);
    if (NS_SUCCEEDED(rv))
      su->StartupTasks();
  }
  

  nsresult result = main1( argc, argv );


  {
        // Scoping this in a block to force the pref service to be           
        // released. 
        //
	// save the prefs, in case they weren't saved
	NS_WITH_SERVICE(nsIPref, prefs, kPrefCID, &rv);
	NS_ASSERTION(NS_SUCCEEDED(rv), "failed to get prefs, so unable to save them");
	if (NS_SUCCEEDED(rv)) {
		prefs->SavePrefFile();
	}  
  }

#ifdef DETECT_WEBSHELL_LEAKS
  if ( unsigned long count = NS_TotalWebShellsInExistence() )  {
    printf("XXX WARNING: Number of webshells being leaked: %d \n", count);
  }
#endif

  // at this point, all that is on the clipboard is a proxy object, but that object
  // won't be valid once the app goes away. As a result, we need to force the data
  // out of that proxy and properly onto the clipboard. This can't be done in the
  // clipboard service's shutdown routine because it requires the parser/etc which
  // has already been shutdown by the time the clipboard is shut down.
  NS_WITH_SERVICE(nsIClipboard, clipService, "component://netscape/widget/clipboard", &rv);
  if ( clipService )
    clipService->ForceDataToClipboard();

  rv = NS_ShutdownXPCOM( NULL );
  NS_ASSERTION(NS_SUCCEEDED(rv), "NS_ShutdownXPCOM failed");
  return TranslateReturnValue( result );
}