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gecko-dev/xpfe/bootstrap/nsNativeAppSupportOS2.cpp
mkaply%us.ibm.com c2f2881e53 OS/2 breakage
2001-09-11 13:08:11 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 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):
* Bill Law law@netscape.com
* IBM Corp.
*/
// For server mode systray icon.
#include "nsIStringBundle.h"
#include "nsNativeAppSupportBase.h"
#include "nsString.h"
#include "nsICmdLineService.h"
#include "nsCOMPtr.h"
#include "nsXPIDLString.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsICmdLineHandler.h"
#include "nsIDOMWindow.h"
#include "nsISupportsPrimitives.h"
#include "nsIWindowWatcher.h"
#include "nsIDOMWindowInternal.h"
#include "nsIScriptGlobalObject.h"
#include "nsIDocShell.h"
#include "nsIBaseWindow.h"
#include "nsIWidget.h"
#include "nsIAppShellService.h"
#include "nsIProfileInternal.h"
#include "rdf.h"
#include "nsIXULWindow.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIPref.h"
#include "nsIPromptService.h"
#include "nsNetCID.h"
#include "nsIHttpProtocolHandler.h"
// These are needed to load a URL in a browser window.
#include "nsIDOMLocation.h"
#include "nsIJSContextStack.h"
#include "nsIWindowMediator.h"
#define INCL_PM
#define INCL_GPI
#define INCL_DOS
#define INCL_DOSERRORS
#include <os2.h>
#include <stdlib.h>
#include <stdio.h>
#include <io.h>
#include <fcntl.h>
#include "nsNativeAppSupportOS2.h"
#define TURBO_QUIT 1
// getting from nsAppRunner. Use to help track down arguments.
extern char ** __argv;
extern int __argc;
typedef ULONG DWORD;
typedef PBYTE LPBYTE;
typedef HDATA HDDEDATA;
#define CP_WINANSI 0 // When 0 is specified for codepage on these
// dde functions, it will use the codepage
// that is associated with the current thread.
// CP_WINANSI in win32 means that the non
// unicode version of DdeCreateStringHandle
// was used.
// Adding to support DDE
#define ID_MESSAGEWINDOW 0xDEAF
/* trying to keep this like Window's COPYDATASTRUCT, but a compiler error is
* forcing me to add chBuff so that we can append the data to the end of the
* structure
*/
typedef struct _COPYDATASTRUCT
{
ULONG dwData;
ULONG cbData;
PVOID lpData;
CHAR chBuff;
}COPYDATASTRUCT, *PCOPYDATASTRUCT;
#define WM_COPYDATA (WM_USER + 60)
char szCommandLine[2*CCHMAXPATH];
static HWND hwndForDOMWindow( nsISupports * );
static
nsresult
GetMostRecentWindow(const PRUnichar* aType, nsIDOMWindowInternal** aWindow) {
nsresult rv;
nsCOMPtr<nsIWindowMediator> med( do_GetService( NS_RDF_DATASOURCE_CONTRACTID_PREFIX "window-mediator", &rv ) );
if ( NS_FAILED( rv ) )
return rv;
if ( med )
return med->GetMostRecentWindow( aType, aWindow );
return NS_ERROR_FAILURE;
}
static
void
activateWindow( nsIDOMWindowInternal *win ) {
// Try to get native window handle.
HWND hwnd = hwndForDOMWindow( win );
if ( hwnd ) {
/* if we are looking at a client window, then we really probably want
* the frame so that we can manipulate THAT
*/
LONG id = WinQueryWindowUShort( hwnd, QWS_ID );
if( id == FID_CLIENT )
{
hwnd = WinQueryWindow( hwnd, QW_PARENT );
}
// Restore the window in case it is minimized.
// Use the OS call, if possible.
WinSetWindowPos( hwnd, 0L, 0L, 0L, 0L, 0L,
SWP_SHOW | SWP_RESTORE | SWP_ACTIVATE );
} else {
// Use internal method.
win->Focus();
}
}
// Define this macro to 1 to get DDE debugging output.
#define MOZ_DEBUG_DDE 0
#ifdef DEBUG_law
#undef MOZ_DEBUG_DDE
#define MOZ_DEBUG_DDE 1
#endif
class nsSplashScreenOS2 : public nsISplashScreen {
public:
nsSplashScreenOS2();
~nsSplashScreenOS2();
NS_IMETHOD Show();
NS_IMETHOD Hide();
// nsISupports methods
NS_IMETHOD_(nsrefcnt) AddRef() {
mRefCnt++;
return mRefCnt;
}
NS_IMETHOD_(nsrefcnt) Release() {
--mRefCnt;
if ( !mRefCnt ) {
delete this;
return 0;
}
return mRefCnt;
}
NS_IMETHOD QueryInterface( const nsIID &iid, void**p ) {
nsresult rv = NS_OK;
if ( p ) {
*p = 0;
if ( iid.Equals( NS_GET_IID( nsISplashScreen ) ) ) {
nsISplashScreen *result = this;
*p = result;
NS_ADDREF( result );
} else if ( iid.Equals( NS_GET_IID( nsISupports ) ) ) {
nsISupports *result = NS_STATIC_CAST( nsISupports*, this );
*p = result;
NS_ADDREF( result );
} else {
rv = NS_NOINTERFACE;
}
} else {
rv = NS_ERROR_NULL_POINTER;
}
return rv;
}
void SetDialog( HWND dlg );
void LoadBitmap();
static nsSplashScreenOS2* GetPointer( HWND dlg );
HWND mDlg;
HBITMAP mBitmap;
nsrefcnt mRefCnt;
}; // class nsSplashScreenOS2
MRESULT EXPENTRY DialogProc( HWND dlg, ULONG msg, MPARAM mp1, MPARAM mp2 );
void _Optlink ThreadProc (void *splashScreen);
// Simple Win32 mutex wrapper.
struct Mutex {
Mutex( const char *name )
: mName( name ),
mHandle( 0 ),
mState( -1 ) {
DosCreateMutexSem( mName.get(), &mHandle, 0, FALSE );
#if MOZ_DEBUG_DDE
printf( "CreateMutex error = 0x%08X\n", (int)GetLastError() );
#endif
}
~Mutex() {
if ( mHandle ) {
// Make sure we release it if we own it.
Unlock();
APIRET rc = DosCloseMutexSem( mHandle );
#if MOZ_DEBUG_DDE
if ( rc != NO_ERROR ) {
printf( "CloseHandle error = 0x%08X\n", (int)GetLastError() );
}
#endif
}
}
BOOL Lock( DWORD timeout ) {
if ( mHandle ) {
#if MOZ_DEBUG_DDE
printf( "Waiting (%d msec) for DDE mutex...\n", (int)timeout );
#endif
mState = DosRequestMutexSem( mHandle, timeout );
#if MOZ_DEBUG_DDE
printf( "...wait complete, result = 0x%08X\n", (int)mState );
#endif
return mState == NO_ERROR;
} else {
return FALSE;
}
}
void Unlock() {
if ( mHandle && mState == NO_ERROR ) {
#if MOZ_DEBUG_DDE
printf( "Releasing DDE mutex\n" );
#endif
DosReleaseMutexSem( mHandle );
mState = -1;
}
}
private:
nsCString mName;
HMTX mHandle;
DWORD mState;
};
/* DDE Notes
*
* This section describes the Win32 DDE service implementation for
* Mozilla. DDE is used on Win32 platforms to communicate between
* separate instances of mozilla.exe (or other Mozilla-based
* executables), or, between the Win32 desktop shell and Mozilla.
*
* The first instance of Mozilla will become the "server" and
* subsequent executables (and the shell) will use DDE to send
* requests to that process. The requests are DDE "execute" requests
* that pass the command line arguments.
*
* Mozilla registers the DDE application "Mozilla" and currently
* supports only the "WWW_OpenURL" topic. This should be reasonably
* compatible with applications that interfaced with Netscape
* Communicator (and its predecessors?). Note that even that topic
* may not be supported in a compatible fashion as the command-line
* options for Mozilla are different than for Communiator.
*
* It is imperative that at most one instance of Mozilla execute in
* "server mode" at any one time. The "native app support" in Mozilla
* on Win32 ensures that only the server process performs XPCOM
* initialization (that is not required for subsequent client processes
* to communicate with the server process).
*
* To guarantee that only one server starts up, a Win32 "mutex" is used
* to ensure only one process executes the server-detection code. That
* code consists of initializing DDE and doing a DdeConnect to Mozilla's
* application/topic. If that connection succeeds, then a server process
* must be running already.
*
* Otherwise, no server has started. In that case, the current process
* calls DdeNameService to register that application/topic. Only at that
* point does the mutex get released.
*
* There are a couple of subtleties that one should be aware of:
*
* 1. It is imperative that DdeInitialize be called only after the mutex
* lock has been obtained. The reason is that at shutdown, DDE
* notifications go out to all initialized DDE processes. Thus, if
* the mutex is owned by a terminating intance of Mozilla, then
* calling DdeInitialize and then WaitForSingleObject will cause the
* DdeUninitialize from the terminating process to "hang" until the
* process waiting for the mutex times out (and can then service the
* notification that the DDE server is terminating). So, don't mess
* with the sequence of things in the startup/shutdown logic.
*
* 2. All mutex requests are made with a reasonably long timeout value and
* are designed to "fail safe" (i.e., a timeout is treated as failure).
*
* 3. An attempt has been made to minimize the degree to which the main
* Mozilla application logic needs to be aware of the DDE mechanisms
* implemented herein. As a result, this module surfaces a very
* large-grained interface, consisting of simple start/stop methods.
* As a consequence, details of certain scenarios can be "lost."
* Particularly, incoming DDE requests can arrive after this module
* initiates the DDE server, but before Mozilla is initialized to the
* point where those requests can be serviced (e.g., open a browser
* window to a particular URL). Since the client process sends the
* request early on, it may not be prepared to respond to that error.
* Thus, such situations may fail silently. The design goal is that
* they fail harmlessly. Refinements on this point will be made as
* details emerge (and time permits).
*/
/* Update 2001 March
*
* A significant DDE bug in Windows is causing Mozilla to get wedged at
* startup. This is detailed in Bugzill bug 53952
* (http://bugzilla.mozilla.org/show_bug.cgi?id=53952).
*
* To resolve this, we are using a new strategy:
* o Use a "message window" to detect that Mozilla is already running and
* to pass requests from a second instance back to the first;
* o Run only as a "DDE server" (not as DDE client); this avoids the
* problematic call to DDEConnect().
*
* We still use the mutex semaphore to protect the code that detects
* whether Mozilla is already running.
*/
class nsNativeAppSupportOS2 : public nsNativeAppSupportBase {
public:
// Overrides of base implementation.
NS_IMETHOD Start( PRBool *aResult );
NS_IMETHOD Stop( PRBool *aResult );
NS_IMETHOD Quit();
NS_IMETHOD StartServerMode();
NS_IMETHOD SetIsServerMode( PRBool isServerMode );
NS_IMETHOD OnLastWindowClosing( nsIXULWindow *aWindow );
// The "old" Start method (renamed).
NS_IMETHOD StartDDE();
// Utility function to handle a Win32-specific command line
// option: "-console", which dynamically creates a Windows
// console.
void CheckConsole();
private:
static HDDEDATA APIENTRY HandleDDENotification( ULONG idInst,
USHORT uType,
USHORT uFmt,
HCONV hconv,
HSZ hsz1,
HSZ hsz2,
HDDEDATA hdata,
ULONG dwData1,
ULONG dwData2 );
static void HandleRequest( LPBYTE request, PRBool newWindow = PR_TRUE );
static nsCString ParseDDEArg( HSZ args, int index );
static void ActivateLastWindow();
static HDDEDATA CreateDDEData( DWORD value );
static PRBool InitTopicStrings();
static int FindTopic( HSZ topic );
static nsresult GetCmdLineArgs( LPBYTE request, nsICmdLineService **aResult );
static nsresult EnsureProfile(nsICmdLineService* args);
static nsresult OpenWindow( const char *urlstr, const char *args );
static nsresult OpenBrowserWindow( const char *args, PRBool newWindow = PR_TRUE );
static nsresult ReParent( nsISupports *window, HWND newParent );
static nsresult GetStartupURL(nsICmdLineService *args, nsCString& taskURL);
static void SetupSysTrayIcon();
static void RemoveSysTrayIcon();
static int mConversations;
enum {
topicOpenURL,
topicActivate,
topicCancelProgress,
topicVersion,
topicRegisterViewer,
topicUnRegisterViewer,
// Note: Insert new values above this line!!!!!
topicCount // Count of the number of real topics
};
#ifdef DOWENEED
static NOTIFYICONDATA mIconData;
static HMENU mTrayIconMenu;
#endif /* DOWENEED */
static HSZ mApplication, mTopics[ topicCount ];
static DWORD mInstance;
static char *mAppName;
static nsIDOMWindow *mInitialWindow;
friend struct MessageWindow;
}; // nsNativeAppSupportOS2
nsSplashScreenOS2::nsSplashScreenOS2()
: mDlg( 0 ), mBitmap( 0 ), mRefCnt( 0 ) {
}
nsSplashScreenOS2::~nsSplashScreenOS2() {
#if MOZ_DEBUG_DDE
printf( "splash screen dtor called\n" );
#endif
// Make sure dialog is gone.
Hide();
}
NS_IMETHODIMP
nsSplashScreenOS2::Show() {
//Spawn new thread to display real splash screen.
int handle = _beginthread( ThreadProc, NULL, 16384, (void *)this );
return NS_OK;
}
NS_IMETHODIMP
nsSplashScreenOS2::Hide() {
if ( mDlg ) {
#ifdef DOWENEED
// Fix for bugs:
// http://bugzilla.mozilla.org/show_bug.cgi?id=26581
// http://bugzilla.mozilla.org/show_bug.cgi?id=65974
// http://bugzilla.mozilla.org/show_bug.cgi?id=29172
// http://bugzilla.mozilla.org/show_bug.cgi?id=45805
// As the splash-screen is in a seperate thread, Windows considers
// this the "foreground" thread. When our main windows on the main
// thread are activated, they are treated like windows from a different
// application, so Windows 2000 and 98 both leave the window in the background.
// Therefore, we post a message to the splash-screen thread that includes
// the hwnd of the window we want moved to the foreground. This thread
// can then successfully bring the top-level window to the foreground.
nsCOMPtr<nsIDOMWindowInternal> topLevel;
GetMostRecentWindow(nsnull, getter_AddRefs( topLevel ) );
HWND hWndTopLevel = topLevel ? hwndForDOMWindow(topLevel) : 0;
#endif /* DOWENEED */
// Dismiss the dialog.
WinPostMsg(mDlg, WM_CLOSE, 0, 0);
// Release custom bitmap (if there is one).
if ( mBitmap ) {
BOOL ok = GpiDeleteBitmap( mBitmap );
}
mBitmap = 0;
mDlg = 0;
}
return NS_OK;
}
void
nsSplashScreenOS2::LoadBitmap() {
#ifdef XP_OS2
HPS hps = WinGetPS( mDlg );
mBitmap = GpiLoadBitmap (hps, NULL, IDB_SPLASH, 0L, 0L);
WinReleasePS( hps );
#else
// Check for '<program-name>.bmp" in same directory as executable.
char fileName[ _MAX_PATH ];
int fileNameLen = ::GetModuleFileName( NULL, fileName, sizeof fileName );
if ( fileNameLen >= 3 ) {
fileName[ fileNameLen - 3 ] = 0;
strcat( fileName, "bmp" );
// Try to load bitmap from that file.
HBITMAP bitmap = (HBITMAP)::LoadImage( NULL,
fileName,
IMAGE_BITMAP,
0,
0,
LR_LOADFROMFILE );
if ( bitmap ) {
HWND bitmapControl = GetDlgItem( mDlg, IDB_SPLASH );
if ( bitmapControl ) {
HBITMAP old = (HBITMAP)SendMessage( bitmapControl,
STM_SETIMAGE,
IMAGE_BITMAP,
(LPARAM)bitmap );
// Remember bitmap so we can delete it later.
mBitmap = bitmap;
// Delete old bitmap.
if ( old ) {
BOOL ok = DeleteObject( old );
}
} else {
// Delete bitmap since it isn't going to be used.
DeleteObject( bitmap );
}
}
}
#endif
}
MRESULT EXPENTRY DialogProc( HWND dlg, ULONG msg, MPARAM mp1, MPARAM mp2 ) {
if ( msg == WM_INITDLG ) {
// Store dialog handle.
nsSplashScreenOS2 *splashScreen = (nsSplashScreenOS2*)mp2;
if ( mp2 ) {
splashScreen->SetDialog( dlg );
// Try to load customized bitmap.
splashScreen->LoadBitmap();
}
/* Size and center the splash screen correctly. The flags in the
* dialog template do not do the right thing if the user's
* machine is using large fonts.
*/
HBITMAP hbitmap = splashScreen->mBitmap;
if ( hbitmap ) {
BITMAPINFOHEADER bitmap;
bitmap.cbFix = sizeof (BITMAPINFOHEADER);
GpiQueryBitmapParameters (splashScreen->mBitmap, &bitmap);
WinSetWindowPos( dlg,
HWND_TOP,
WinQuerySysValue( HWND_DESKTOP, SV_CXSCREEN )/2 - bitmap.cx/2,
WinQuerySysValue( HWND_DESKTOP, SV_CYSCREEN )/2 - bitmap.cy/2,
bitmap.cx,
bitmap.cy,
SWP_ACTIVATE | SWP_MOVE | SWP_SIZE );
WinShowWindow( dlg, TRUE );
}
return (MRESULT)FALSE;
}
else if ( msg == WM_PAINT ) {
nsSplashScreenOS2 *splashScreen = (nsSplashScreenOS2*)WinQueryWindowPtr( dlg, QWL_USER );
HPS hps = WinBeginPaint (dlg, NULLHANDLE, NULL);
GpiErase (hps);
if (splashScreen->mBitmap) {
POINTL ptl;
ptl.x = 0;
ptl.y = 0;
WinDrawBitmap( hps, splashScreen->mBitmap, NULL, &ptl, CLR_NEUTRAL, CLR_BACKGROUND, DBM_NORMAL);
}
WinEndPaint( hps );
return (MRESULT)TRUE;
}
#ifdef DOWENEED
else if (msg == WM_CLOSE) {
// Before killing ourself, set the top-level current.
// See comments in nsSplashScreenWin::Hide() above.
HWND topLevel = (HWND)mp2;
if (topLevel)
::SetForegroundWindow(topLevel);
// Destroy the dialog
::EndDialog(dlg, 0);
// Release custom bitmap (if there is one).
HBITMAP bitmap = (HBITMAP)wp;
if ( bitmap ) {
::DeleteObject( bitmap );
}
}
#endif /* DOWENEED */
return WinDefDlgProc (dlg, msg, mp1, mp2);
}
void nsSplashScreenOS2::SetDialog( HWND dlg ) {
// Save dialog handle.
mDlg = dlg;
// Store this pointer in the dialog.
WinSetWindowPtr( mDlg, QWL_USER, this );
}
nsSplashScreenOS2 *nsSplashScreenOS2::GetPointer( HWND dlg ) {
// Get result from dialog user data.
PVOID data = WinQueryWindowPtr( dlg, QWL_USER );
return (nsSplashScreenOS2*)data;
}
void _Optlink ThreadProc(void *splashScreen) {
HAB hab = WinInitialize( 0 );
HMQ hmq = WinCreateMsgQueue( hab, 0 );
WinDlgBox( HWND_DESKTOP, HWND_DESKTOP, (PFNWP)DialogProc, NULLHANDLE, IDD_SPLASH, (MPARAM)splashScreen );
WinDestroyMsgQueue( hmq );
WinTerminate( hab );
// _endthread();
}
void
nsNativeAppSupportOS2::CheckConsole() {
for ( int i = 1; i < __argc; i++ ) {
if ( strcmp( "-console", __argv[i] ) == 0
||
strcmp( "/console", __argv[i] ) == 0 ) {
#ifdef DOWENEED
// Users wants to make sure we have a console.
// Try to allocate one.
BOOL rc = ::AllocConsole();
if ( rc ) {
// Console allocated. Fix it up so that output works in
// all cases. See http://support.microsoft.com/support/kb/articles/q105/3/05.asp.
// stdout
int hCrt = ::_open_osfhandle( (long)GetStdHandle( STD_OUTPUT_HANDLE ),
_O_TEXT );
if ( hCrt != -1 ) {
FILE *hf = ::_fdopen( hCrt, "w" );
if ( hf ) {
*stdout = *hf;
::fprintf( stdout, "stdout directed to dynamic console\n" );
}
}
// stderr
hCrt = ::_open_osfhandle( (long)::GetStdHandle( STD_ERROR_HANDLE ),
_O_TEXT );
if ( hCrt != -1 ) {
FILE *hf = ::_fdopen( hCrt, "w" );
if ( hf ) {
*stderr = *hf;
::fprintf( stderr, "stderr directed to dynamic console\n" );
}
}
// stdin?
/* Don't bother for now.
hCrt = ::_open_osfhandle( (long)::GetStdHandle( STD_INPUT_HANDLE ),
_O_TEXT );
if ( hCrt != -1 ) {
FILE *hf = ::_fdopen( hCrt, "r" );
if ( hf ) {
*stdin = *hf;
}
}
*/
} else {
// Failed. Probably because there already is one.
// There's little we can do, in any case.
}
// Don't bother doing this more than once.
break;
#endif /* DOWENEED */
} else if ( strcmp( "-turbo", __argv[i] ) == 0
||
strcmp( "/turbo", __argv[i] ) == 0
||
strcmp( "-server", __argv[i] ) == 0
||
strcmp( "/server", __argv[i] ) == 0 ) {
// Start in server mode (and suppress splash screen).
SetIsServerMode( PR_TRUE );
__argv[i] = "-nosplash"; // Bit of a hack, but it works!
// Ignore other args.
break;
}
}
return;
}
// Create and return an instance of class nsNativeAppSupportOS2.
nsresult
NS_CreateNativeAppSupport( nsINativeAppSupport **aResult ) {
if ( aResult ) {
nsNativeAppSupportOS2 *pNative = new nsNativeAppSupportOS2;
if ( pNative ) {
*aResult = pNative;
NS_ADDREF( *aResult );
// Check for dynamic console creation request.
pNative->CheckConsole();
} else {
return NS_ERROR_OUT_OF_MEMORY;
}
} else {
return NS_ERROR_NULL_POINTER;
}
return NS_OK;
}
// Create instance of OS/2 splash screen object.
nsresult
NS_CreateSplashScreen( nsISplashScreen **aResult ) {
if ( aResult ) {
*aResult = 0;
CHAR pBuffer[3];
PrfQueryProfileString( HINI_USERPROFILE, "PM_ControlPanel", "LogoDisplayTime", "1", pBuffer, 3);
if (pBuffer[0] == '0') {
return NS_OK;
} /* endif */
#ifndef XP_OS2
for ( int i = 1; i < __argc; i++ ) {
if ( strcmp( "-quiet", __argv[i] ) == 0
||
strcmp( "/quiet", __argv[i] ) == 0 ) {
// No splash screen, please.
return NS_OK;
}
}
#endif
*aResult = new nsSplashScreenOS2;
if ( *aResult ) {
NS_ADDREF( *aResult );
} else {
return NS_ERROR_OUT_OF_MEMORY;
}
} else {
return NS_ERROR_NULL_POINTER;
}
return NS_OK;
}
// Constants
#define MOZ_DDE_APPLICATION "Mozilla"
#ifdef XP_OS2
/* os/2 named semaphores must begin with "\\SEM32\\" to be valid */
#define MOZ_MUTEX_PREPEND "\\SEM32\\"
#endif /* XP_OS2 */
#define MOZ_STARTUP_MUTEX_NAME "StartupMutex"
#define MOZ_DDE_START_TIMEOUT 30000
#define MOZ_DDE_STOP_TIMEOUT 15000
#define MOZ_DDE_EXEC_TIMEOUT 15000
// The array entries must match the enum ordering!
const char * const topicNames[] = { "WWW_OpenURL",
"WWW_Activate",
"WWW_CancelProgress",
"WWW_Version",
"WWW_RegisterViewer",
"WWW_UnRegisterViewer" };
// Static member definitions.
int nsNativeAppSupportOS2::mConversations = 0;
HSZ nsNativeAppSupportOS2::mApplication = 0;
HSZ nsNativeAppSupportOS2::mTopics[nsNativeAppSupportOS2::topicCount] = { 0 };
DWORD nsNativeAppSupportOS2::mInstance = 0;
nsIDOMWindow* nsNativeAppSupportOS2::mInitialWindow = nsnull;
// Added this as pmddeml has no api like this
int DdeCmpStringHandles( HSZ hsz1, HSZ hsz2 )
{
char chhsz1[CCHMAXPATH], chhsz2[CCHMAXPATH];
int rc = -1;
/* I am assuming that the strings will never be more that CCHMAXPATH in
* length. Safe bet (for now). To find true length, call WinDdeQueryString
* and pass in (hsz, NULL, 0L, 0) and it will return iLength. Passing 0
* for codepage will use the codepage of the current thread.
*/
WinDdeQueryString( hsz1, chhsz1, sizeof( chhsz1 ), 0 );
WinDdeQueryString( hsz2, chhsz2, sizeof( chhsz2 ),0 );
rc = stricmp( chhsz1, chhsz2 );
return(rc);
}
char *GetCommandLine()
{
/* This function is meant to be like the Window's GetCommandLine() function.
* The value returned by pPIB->pib_pchcmd is of the format:
* <executable>\0<command line parameters>. So the first string is the
* .exe and the second string is what followed on the command line. Dorky,
* but I guess it'll have to do.
*/
PTIB pTIB = NULL;
PPIB pPIB = NULL;
APIRET rc = NO_ERROR;
char *pchParam = NULL;
rc = DosGetInfoBlocks( &pTIB, &pPIB );
if( rc == NO_ERROR )
{
INT iLen = 0;
char *pchTemp = NULL;
pchParam = pPIB->pib_pchcmd;
strcpy( szCommandLine, pchParam );
iLen = strlen( pchParam );
/* szCommandLine[iLen] is '\0', so see what's next. Probably be another
* '\0', a space or start of the arguments
*/
pchTemp = &(pchParam[iLen+1]);
/* At this point, szCommandLine holds just the program name. Now we
* go for the parameters. If our next value is a space, ignore it
* and go for the next character
*/
if( *pchTemp )
{
szCommandLine[iLen] = ' ';
iLen++;
if( *pchTemp == ' ' )
{
pchTemp++;
}
strcpy( &(szCommandLine[iLen]), pchTemp );
}
}
return( szCommandLine );
}
typedef struct _DDEMLFN
{
PFN *fn;
ULONG ord;
} DDEMLFN, *PDDEMLFN;
DDEMLFN ddemlfnTable[] =
{
{ (PFN *)&WinDdeAbandonTransaction ,100 },
{ (PFN *)&WinDdeAccessData ,101 },
{ (PFN *)&WinDdeAddData ,102 },
{ (PFN *)&WinDdeSubmitTransaction ,103 },
{ (PFN *)&WinDdeCompareStringHandles ,104 },
{ (PFN *)&WinDdeConnect ,105 },
{ (PFN *)&WinDdeConnectList ,106 },
{ (PFN *)&WinDdeCreateDataHandle ,107 },
{ (PFN *)&WinDdeCreateStringHandle ,108 },
{ (PFN *)&WinDdeDisconnect ,109 },
{ (PFN *)&WinDdeDisconnectList ,110 },
{ (PFN *)&WinDdeEnableCallback ,111 },
{ (PFN *)&WinDdeFreeDataHandle ,112 },
{ (PFN *)&WinDdeFreeStringHandle ,113 },
{ (PFN *)&WinDdeGetData ,114 },
{ (PFN *)&WinDdeInitialize ,116 },
{ (PFN *)&WinDdeKeepStringHandle ,117 },
{ (PFN *)&WinDdeNameService ,118 },
{ (PFN *)&WinDdePostAdvise ,119 },
{ (PFN *)&WinDdeQueryConvInfo ,120 },
{ (PFN *)&WinDdeQueryNextServer ,121 },
{ (PFN *)&WinDdeQueryString ,122 },
{ (PFN *)&WinDdeReconnect ,123 },
{ (PFN *)&WinDdeSetUserHandle ,124 },
{ (PFN *)&WinDdeUninitialize ,126 },
{ (PFN *)NULL , 0 }
};
/* SetupOS2ddeml makes sure that we can get pointers to all of the DDEML
* functions in demlfnTable using entrypoints. If we can't find one of them
* or can't load pmddeml.dll, then returns FALSE
*/
BOOL SetupOS2ddeml()
{
BOOL bRC = FALSE;
HMODULE hmodDDEML = NULLHANDLE;
APIRET rc = NO_ERROR;
ULONG ulVersion = 0;
rc = DosLoadModule( NULL, 0, "PMDDEML", &hmodDDEML );
if( rc == NO_ERROR )
{
int i=0;
/* all of this had better work. Get ready to be a success! */
bRC = TRUE;
for( i; ddemlfnTable[i].ord != 0; i++ )
{
rc = DosQueryProcAddr( hmodDDEML, ddemlfnTable[i].ord, NULL,
ddemlfnTable[i].fn );
if( rc != NO_ERROR )
{
/* we're horked. Return rc = horked */
bRC = FALSE;
break;
}
}
} /* load PMDDEML */
return( bRC );
}
#ifdef DOWENEED
NOTIFYICONDATA nsNativeAppSupportOS2::mIconData = { sizeof(NOTIFYICONDATA),
0,
1,
NIF_ICON | NIF_MESSAGE | NIF_TIP,
WM_USER,
0,
0 };
HMENU nsNativeAppSupportOS2::mTrayIconMenu = 0;
#endif /* DOWENEED */
// Message window encapsulation.
struct MessageWindow {
// ctor/dtor are simplistic
MessageWindow() {
// Try to find window.
// XXX need to improve this to use check the class
mHandle = WinWindowFromID( HWND_OBJECT, ID_MESSAGEWINDOW );
}
// Act like an HWND.
operator HWND() {
return mHandle;
}
// Class name: appName + "MessageWindow"
static const char *className() {
static char classNameBuffer[128];
static char *mClassName = 0;
if ( !mClassName ) {
sprintf( classNameBuffer,
"%s%s",
nsNativeAppSupportOS2::mAppName,
"MessageWindow" );
mClassName = classNameBuffer;
}
return mClassName;
}
// Create: Register class and create window.
NS_IMETHOD Create() {
// Register the window class.
NS_ENSURE_TRUE( WinRegisterClass( 0, className(),
(PFNWP)&MessageWindow::WindowProc,
0L, 0 ),
NS_ERROR_FAILURE );
/* Giving a size but offscreen so that won't be seen, even if all
* goes wrong. Giving a size so that can be seen and understood by
* tools
*/
const char * pszClassName = className();
mHandle = WinCreateWindow( HWND_OBJECT,
pszClassName,
NULL, // name
WS_DISABLED, // style
0,0, // x, y
0,0, // cx,cy
HWND_DESKTOP,// owner
HWND_BOTTOM, // hwndbehind
ID_MESSAGEWINDOW, // id
NULL, // pCtlData
NULL ); // pres params
#if MOZ_DEBUG_DDE
printf( "Message window = 0x%08X\n", (int)mHandle );
#endif
return NS_OK;
}
// SendRequest: Pass string via WM_COPYDATA to message window.
NS_IMETHOD SendRequest( const char *cmd ) {
#ifdef XP_OS2
/* Nothing like WM_COPYDATA in OS/2, where the OS allows pointers to be
* passed to a different process and automatically accessible by that
* process. So we have to create shared mem on our side and then the
* process that gets the WM_COPYDATA message has to do a
* DosGetSharedMem on this pointer to be able to access the data
*/
COPYDATASTRUCT *pcds;
APIRET rc = NO_ERROR;
PVOID pvData = NULL;
ULONG ulSize = sizeof(COPYDATASTRUCT)+strlen(cmd)+1;
rc = DosAllocSharedMem( &pvData, NULL, ulSize,
(PAG_COMMIT|PAG_READ|PAG_WRITE|OBJ_GETTABLE) );
if( rc != NO_ERROR )
{
/* don't even try doing anything else. Windows doesn't worry about
* errors so I guess that we shouldn't either
*/
return NS_OK;
}
memset( pvData, '\0', ulSize );
pcds = (COPYDATASTRUCT *)(pvData);
pcds->dwData = 0;
pcds->cbData = strlen(cmd)+1;
/* put the data in the buffer space immediately after the
* COPYDATASTRUCT
*/
pcds->lpData = &(pcds->chBuff);
if( cmd )
{
strcpy( (char *)pcds->lpData, cmd );
}
WinSendMsg( mHandle, WM_COPYDATA, 0, (MPARAM)pcds );
DosFreeMem( pvData );
#else
COPYDATASTRUCT cds = { 0, strlen( cmd ) + 1, (void*)cmd };
::SendMessage( mHandle, WM_COPYDATA, 0, (LPARAM)&cds );
#endif /* XP_OS2 */
return NS_OK;
}
// Window proc.
static MRESULT EXPENTRY WindowProc( HWND msgWindow, ULONG msg, MPARAM wp,
MPARAM lp )
{
MRESULT rc = (MRESULT)TRUE;
if ( msg == WM_COPYDATA ) {
// This is an incoming request.
COPYDATASTRUCT *cds = (COPYDATASTRUCT*)lp;
#ifdef XP_OS2
DosGetSharedMem( (PVOID)cds, PAG_READ|PAG_WRITE );
#endif /* XP_OS2 */
#if MOZ_DEBUG_DDE
printf( "Incoming request: %s\n", (const char*)cds->lpData );
#endif
(void)nsNativeAppSupportOS2::HandleRequest( (LPBYTE)cds->lpData );
}
#ifdef DOWENEED
else if ( msg == WM_USER ) {
if ( lp == WM_RBUTTONUP ) {
// Show menu with Exit disabled/enabled appropriately.
nsCOMPtr<nsIDOMWindowInternal> win;
GetMostRecentWindow( 0, getter_AddRefs( win ) );
::EnableMenuItem( nsNativeAppSupportWin::mTrayIconMenu, 1, win ? MF_GRAYED : MF_ENABLED );
POINT pt;
GetCursorPos( &pt );
SetForegroundWindow(msgWindow);
int selectedItem = ::TrackPopupMenu( nsNativeAppSupportWin::mTrayIconMenu,
TPM_NONOTIFY | TPM_RETURNCMD |
TPM_RIGHTBUTTON,
pt.x,
pt.y,
0,
msgWindow,
0 );
switch (selectedItem) {
case TURBO_QUIT:
(void)nsNativeAppSupportWin::HandleRequest( (LPBYTE)"mozilla -kill" );
break;
}
PostMessage(msgWindow, WM_NULL, 0, 0);
} else if ( lp == WM_LBUTTONDBLCLK ) {
// Activate window or open a new one.
nsCOMPtr<nsIDOMWindowInternal> win;
GetMostRecentWindow( 0, getter_AddRefs( win ) );
if ( win ) {
activateWindow( win );
} else {
// This will do the default thing and open a new window.
(void)nsNativeAppSupportWin::HandleRequest( (LPBYTE)"mozilla" );
}
}
}
#endif /* DOWENEED */
#ifdef XP_OS2
/* We have to return a FALSE from WM_CREATE or this window will never
* get off of the ground
*/
else if ( msg == WM_CREATE ) {
rc = (MRESULT)FALSE;
}
#endif /* XP_OS2 */
return rc;
}
private:
HWND mHandle;
}; // struct MessageWindow
static char nameBuffer[128] = { 0 };
char *nsNativeAppSupportOS2::mAppName = nameBuffer;
/* Start: Tries to find the "message window" to determine if it
* exists. If so, then Mozilla is already running. In that
* case, we use the handle to the "message" window and send
* a request corresponding to this process's command line
* options.
*
* If not, then this is the first instance of Mozilla. In
* that case, we create and set up the message window.
*
* The checking for existance of the message window must
* be protected by use of a mutex semaphore.
*/
NS_IMETHODIMP
nsNativeAppSupportOS2::Start( PRBool *aResult ) {
NS_ENSURE_ARG( aResult );
NS_ENSURE_TRUE( mInstance == 0, NS_ERROR_NOT_INITIALIZED );
nsresult rv = NS_ERROR_FAILURE;
*aResult = PR_FALSE;
// Grab mutex first.
int retval;
UINT id = ID_DDE_APPLICATION_NAME;
char nameBuf[ 128 ];
retval = WinLoadString( NULLHANDLE, NULLHANDLE, id, sizeof(nameBuffer), nameBuffer );
if ( retval == 0 ) {
// No app name; just keep running.
*aResult = PR_TRUE;
return NS_OK;
}
// Build mutex name from app name.
char mutexName[128];
sprintf( mutexName, "%s%s%s", MOZ_MUTEX_PREPEND, nameBuffer, MOZ_STARTUP_MUTEX_NAME );
Mutex startupLock = Mutex( mutexName );
NS_ENSURE_TRUE( startupLock.Lock( MOZ_DDE_START_TIMEOUT ), NS_ERROR_FAILURE );
#ifdef XP_OS2
/* We need to have a message queue to do the MessageWindow stuff (for both
* Create() and SendRequest()). If we don't have one, make it now.
* If we are going to end up going away right after ::Start() returns,
* then make sure to clean up the message queue.
*/
MQINFO mqinfo;
HAB hab;
HMQ hmqCurrent = WinQueryQueueInfo( HMQ_CURRENT, &mqinfo,
sizeof( MQINFO ) );
if( !hmqCurrent )
{
hab = WinInitialize( 0 );
hmqCurrent = WinCreateMsgQueue( hab, 0 );
}
#endif /* XP_OS */
// Search for existing message window.
MessageWindow msgWindow;
if ( (HWND)msgWindow ) {
// We are a client process. Pass request to message window.
char *cmd = GetCommandLine();
rv = msgWindow.SendRequest( cmd );
} else {
// We will be server.
rv = msgWindow.Create();
if ( NS_SUCCEEDED( rv ) ) {
// Start up DDE server.
this->StartDDE();
// Tell caller to spin message loop.
*aResult = PR_TRUE;
}
}
startupLock.Unlock();
#ifdef XP_OS2
if( *aResult == PR_FALSE )
{
/* This process isn't going to continue much longer. Make sure that we
* clean up the message queue
*/
if( hmqCurrent )
{
WinDestroyMsgQueue( hmqCurrent );
}
if( hab )
{
WinTerminate( hab );
}
}
#endif /* XP_OS2 */
return rv;
}
PRBool
nsNativeAppSupportOS2::InitTopicStrings() {
for ( int i = 0; i < topicCount; i++ ) {
if ( !( mTopics[ i ] = WinDdeCreateStringHandle( (PSZ)topicNames[ i ], CP_WINANSI ) ) ) {
return PR_FALSE;
}
}
return PR_TRUE;
}
int
nsNativeAppSupportOS2::FindTopic( HSZ topic ) {
for ( int i = 0; i < topicCount; i++ ) {
if ( DdeCmpStringHandles( topic, mTopics[i] ) == 0 ) {
return i;
}
}
return -1;
}
// Start DDE server.
//
// This used to be the Start() method when we were using DDE as the
// primary IPC mechanism between secondary Mozilla processes and the
// initial "server" process.
//
// Now, it simply initializes the DDE server. The caller must check
// that this process is to be the server, and, must acquire the DDE
// startup mutex semaphore prior to calling this routine. See ::Start(),
// above.
NS_IMETHODIMP
nsNativeAppSupportOS2::StartDDE() {
NS_ENSURE_TRUE( mInstance == 0, NS_ERROR_NOT_INITIALIZED );
BOOL bDdemlReady = SetupOS2ddeml();
UINT rc = DDEERR_NOT_INITIALIZED;
if( bDdemlReady == TRUE )
{
rc = (UINT) WinDdeInitialize(
&mInstance,
nsNativeAppSupportOS2::HandleDDENotification,
APPCLASS_STANDARD,
0 );
}
// Initialize DDE.
NS_ENSURE_TRUE( DDEERR_NO_ERROR == rc, NS_ERROR_FAILURE );
// Allocate DDE strings.
NS_ENSURE_TRUE( ( mApplication = WinDdeCreateStringHandle( mAppName, CP_WINANSI ) ) && InitTopicStrings(),
NS_ERROR_FAILURE );
// Next step is to register a DDE service.
NS_ENSURE_TRUE( WinDdeNameService( mInstance, mApplication, 0, DNS_REGISTER ), NS_ERROR_FAILURE );
#if MOZ_DEBUG_DDE
printf( "DDE server started\n" );
#endif
return NS_OK;
}
// If no DDE conversations are pending, terminate DDE.
NS_IMETHODIMP
nsNativeAppSupportOS2::Stop( PRBool *aResult ) {
NS_ENSURE_ARG( aResult );
NS_ENSURE_TRUE( mInstance, NS_ERROR_NOT_INITIALIZED );
nsresult rv = NS_OK;
*aResult = PR_TRUE;
Mutex ddeLock( MOZ_STARTUP_MUTEX_NAME );
if ( ddeLock.Lock( MOZ_DDE_STOP_TIMEOUT ) ) {
if ( mConversations == 0 ) {
this->Quit();
} else {
*aResult = PR_FALSE;
}
ddeLock.Unlock();
}
else {
// No DDE application name specified, but that's OK. Just
// forge ahead.
*aResult = PR_TRUE;
}
return rv;
}
// Terminate DDE regardless.
NS_IMETHODIMP
nsNativeAppSupportOS2::Quit() {
if ( mInstance ) {
// Unregister application name.
WinDdeNameService( mInstance, mApplication, 0, DNS_UNREGISTER );
// Clean up strings.
if ( mApplication ) {
WinDdeFreeStringHandle( mApplication );
mApplication = 0;
}
for ( int i = 0; i < topicCount; i++ ) {
if ( mTopics[i] ) {
WinDdeFreeStringHandle( mTopics[i] );
mTopics[i] = 0;
}
}
WinDdeUninitialize( mInstance );
mInstance = 0;
}
return NS_OK;
}
PRBool NS_CanRun()
{
return PR_TRUE;
}
#if MOZ_DEBUG_DDE
// Macro to generate case statement for a given XTYP value.
#define XTYP_CASE(t) \
case t: result = #t; break
static nsCString uTypeDesc( UINT uType ) {
nsCString result;
switch ( uType ) {
XTYP_CASE(XTYP_ADVSTART);
XTYP_CASE(XTYP_CONNECT);
XTYP_CASE(XTYP_ADVREQ);
XTYP_CASE(XTYP_REQUEST);
XTYP_CASE(XTYP_WILDCONNECT);
XTYP_CASE(XTYP_ADVDATA);
XTYP_CASE(XTYP_EXECUTE);
XTYP_CASE(XTYP_POKE);
XTYP_CASE(XTYP_ADVSTOP);
XTYP_CASE(XTYP_CONNECT_CONFIRM);
XTYP_CASE(XTYP_DISCONNECT);
XTYP_CASE(XTYP_ERROR);
XTYP_CASE(XTYP_MONITOR);
XTYP_CASE(XTYP_REGISTER);
XTYP_CASE(XTYP_XACT_COMPLETE);
XTYP_CASE(XTYP_UNREGISTER);
default: result = "XTYP_?????";
}
return result;
}
static nsCString hszValue( DWORD instance, HSZ hsz ) {
// Extract string from HSZ.
nsCString result("[");
DWORD len = WinDdeQueryString( hsz, NULL, NULL, CP_WINANSI );
if ( len ) {
char buffer[ 256 ];
WinDdeQueryString( hsz, buffer, sizeof buffer, CP_WINANSI );
result += buffer;
}
result += "]";
return result;
}
#else
// These are purely a safety measure to avoid the infamous "won't
// build non-debug" type Tinderbox flames.
static nsCString uTypeDesc( UINT ) {
return nsCString( "?" );
}
static nsCString hszValue( DWORD, HSZ ) {
return nsCString( "?" );
}
#endif
HDDEDATA APIENTRY
nsNativeAppSupportOS2::HandleDDENotification( ULONG idInst, // DDEML instance
USHORT uType, // transaction type
USHORT uFmt, // clipboard data format
HCONV hconv, // handle to the conversation
HSZ hsz1, // handle to a string
HSZ hsz2, // handle to a string
HDDEDATA hdata, // handle to a global memory object
ULONG dwData1, // transaction-specific data
ULONG dwData2 ) { // transaction-specific data
#if MOZ_DEBUG_DDE
printf( "DDE: uType =%s\n", uTypeDesc( uType ).get() );
printf( " uFmt =%u\n", (unsigned)uFmt );
printf( " hconv =%08x\n", (int)hconv );
printf( " hsz1 =%08x:%s\n", (int)hsz1, hszValue( mInstance, hsz1 ).get() );
printf( " hsz2 =%08x:%s\n", (int)hsz2, hszValue( mInstance, hsz2 ).get() );
printf( " hdata =%08x\n", (int)hdata );
printf( " dwData1=%08x\n", (int)dwData1 );
printf( " dwData2=%08x\n", (int)dwData2 );
#endif
HDDEDATA result = 0;
if ( uType & XCLASS_BOOL ) {
switch ( uType ) {
case XTYP_CONNECT:
// Make sure its for our service/topic.
if ( FindTopic( hsz1 ) != -1 ) {
// We support this connection.
result = (HDDEDATA)1;
}
break;
case XTYP_CONNECT_CONFIRM:
// We don't care about the conversation handle, at this point.
result = (HDDEDATA)1;
break;
}
} else if ( uType & XCLASS_DATA ) {
if ( uType == XTYP_REQUEST ) {
switch ( FindTopic( hsz1 ) ) {
case topicOpenURL: {
// Open a given URL...
nsCString url = ParseDDEArg( hsz2, 0 );
// Make it look like command line args.
url.Insert( "mozilla -url ", 0 );
#if MOZ_DEBUG_DDE
printf( "Handling dde XTYP_REQUEST request: [%s]...\n", url.get() );
#endif
// Now handle it.
HandleRequest( LPBYTE( url.get() ), PR_FALSE );
// Return pseudo window ID.
result = CreateDDEData( 1 );
break;
}
case topicActivate: {
// Activate a Nav window...
nsCString windowID = ParseDDEArg( hsz2, 0 );
// 4294967295 is decimal for 0xFFFFFFFF which is also a
// correct value to do that Activate last window stuff
if ( windowID.Equals( "-1" ) ||
windowID.Equals( "4294967295" ) ) {
// We only support activating the most recent window (or a new one).
ActivateLastWindow();
// Return pseudo window ID.
result = CreateDDEData( 1 );
}
break;
}
case topicVersion: {
// Return version. We're restarting at 1.0!
DWORD version = 1 << 16; // "1.0"
result = CreateDDEData( version );
break;
}
case topicRegisterViewer: {
// Register new viewer (not implemented).
result = CreateDDEData( PR_FALSE );
break;
}
case topicUnRegisterViewer: {
// Unregister new viewer (not implemented).
result = CreateDDEData( PR_FALSE );
break;
}
default:
break;
}
} else if ( uType & XTYP_POKE ) {
switch ( FindTopic( hsz1 ) ) {
case topicCancelProgress: {
// "Handle" progress cancel (actually, pretty much ignored).
result = (HDDEDATA)DDE_FACK;
break;
}
default:
break;
}
}
} else if ( uType & XCLASS_FLAGS ) {
if ( uType == XTYP_EXECUTE ) {
// Prove that we received the request.
DWORD bytes;
LPBYTE request = (LPBYTE)WinDdeAccessData( hdata, &bytes );
#if MOZ_DEBUG_DDE
printf( "Handling dde request: [%s]...\n", (char*)request );
#endif
HandleRequest( request );
result = (HDDEDATA)DDE_FACK;
} else {
result = (HDDEDATA)DDE_NOTPROCESSED;
}
} else if ( uType & XCLASS_NOTIFICATION ) {
}
#if MOZ_DEBUG_DDE
printf( "DDE result=%d (0x%08X)\n", (int)result, (int)result );
#endif
return result;
}
// Utility to parse out argument from a DDE item string.
nsCString nsNativeAppSupportOS2::ParseDDEArg( HSZ args, int index ) {
nsCString result;
DWORD argLen = WinDdeQueryString( args, NULL, NULL, CP_WINANSI );
if ( argLen ) {
nsCString temp;
// Ensure result's buffer is sufficiently big.
temp.SetLength( argLen + 1 );
// Now get the string contents.
WinDdeQueryString( args, (char*)temp.get(), temp.Length(), CP_WINANSI );
// Parse out the given arg. We assume there's no commas within quoted strings
// (which may not be accurate, but makes life so much easier).
const char *p = temp.get();
// Skip index commas.
PRInt32 offset = index ? temp.FindChar( ',', PR_FALSE, 0, index ) : 0;
if ( offset != -1 ) {
// Desired argument starts there and ends at next comma.
PRInt32 end = temp.FindChar( ',', PR_FALSE, offset+1 );
if ( end == -1 ) {
// Rest of string.
end = temp.Length();
}
// Extract result.
result.Assign( temp.get() + offset, end - offset );
}
}
return result;
}
void nsNativeAppSupportOS2::ActivateLastWindow() {
nsCOMPtr<nsIDOMWindowInternal> navWin;
GetMostRecentWindow( NS_LITERAL_STRING("navigator:browser").get(), getter_AddRefs( navWin ) );
if ( navWin ) {
// Activate that window.
activateWindow( navWin );
} else {
// Need to create a Navigator window, then.
OpenBrowserWindow( "about:blank" );
}
}
HDDEDATA nsNativeAppSupportOS2::CreateDDEData( DWORD value ) {
HDDEDATA result = WinDdeCreateDataHandle( (LPBYTE)&value,
sizeof value,
0,
mApplication,
CF_TEXT,
0 );
return result;
}
// Handle DDE request. The argument is the command line received by the
// DDE client process. We convert that string to an nsICmdLineService
// object via GetCmdLineArgs. Then, we look for certain well-known cmd
// arguments. This replicates code elsewhere, to some extent,
// unfortunately (if you can fix that, please do).
void
nsNativeAppSupportOS2::HandleRequest( LPBYTE request, PRBool newWindow ) {
// Parse command line.
nsCOMPtr<nsICmdLineService> args;
nsresult rv;
rv = GetCmdLineArgs( request, getter_AddRefs( args ) );
if (NS_FAILED(rv)) return;
// first see if there is a url
nsXPIDLCString arg;
rv = args->GetURLToLoad(getter_Copies(arg));
if (NS_SUCCEEDED(rv) && (const char*)arg ) {
// Launch browser.
#if MOZ_DEBUG_DDE
printf( "Launching browser on url [%s]...\n", (const char*)arg );
#endif
if (NS_SUCCEEDED(EnsureProfile(args)))
(void)OpenBrowserWindow( arg );
return;
}
// ok, let's try the -chrome argument
rv = args->GetCmdLineValue("-chrome", getter_Copies(arg));
if (NS_SUCCEEDED(rv) && (const char*)arg ) {
// Launch chrome.
#if MOZ_DEBUG_DDE
printf( "Launching chrome url [%s]...\n", (const char*)arg );
#endif
if (NS_SUCCEEDED(EnsureProfile(args)))
(void)OpenWindow( arg, "" );
return;
}
// try using the command line service to get the url
nsCString taskURL;
rv = GetStartupURL(args, taskURL);
if (NS_SUCCEEDED(rv) && NS_SUCCEEDED(EnsureProfile(args))) {
(void)OpenWindow(taskURL, "");
return;
}
// try for the "-kill" argument, to shut down the server
rv = args->GetCmdLineValue( "-kill", getter_Copies(arg));
if ( NS_SUCCEEDED(rv) && (const char*)arg ) {
// Turn off server mode.
nsCOMPtr<nsIAppShellService> appShell =
do_GetService( "@mozilla.org/appshell/appShellService;1", &rv);
if (NS_FAILED(rv)) return;
nsCOMPtr<nsINativeAppSupport> native;
rv = appShell->GetNativeAppSupport( getter_AddRefs( native ));
if (NS_SUCCEEDED(rv)) {
native->SetIsServerMode( PR_FALSE );
// close app if there are no more top-level windows.
PRBool quitIfNoWindows = PR_FALSE;
appShell->GetQuitOnLastWindowClosing( &quitIfNoWindows );
if (quitIfNoWindows) {
nsCOMPtr<nsIDOMWindowInternal> win;
GetMostRecentWindow( 0, getter_AddRefs( win ) );
if (!win)
appShell->Quit();
}
}
return;
}
// ok, no idea what the param is.
#if MOZ_DEBUG_DDE
printf( "Unknown request [%s]\n", (char*) request );
#endif
// if all else fails, open a browser window
const char * const contractID =
"@mozilla.org/commandlinehandler/general-startup;1?type=browser";
nsCOMPtr<nsICmdLineHandler> handler = do_GetService(contractID, &rv);
if (NS_FAILED(rv)) return;
rv = EnsureProfile(args);
if (NS_FAILED(rv)) return;
nsXPIDLString defaultArgs;
rv = handler->GetDefaultArgs(getter_Copies(defaultArgs));
if (NS_FAILED(rv) || !defaultArgs) return;
if (defaultArgs) {
nsCAutoString url;
url.AssignWithConversion( defaultArgs );
OpenBrowserWindow((const char*)url);
} else {
OpenBrowserWindow("about:blank");
}
}
// Parse command line args according to MS spec
// (see "Parsing C++ Command-Line Arguments" at
// http://msdn.microsoft.com/library/devprods/vs6/visualc/vclang/_pluslang_parsing_c.2b2b_.command.2d.line_arguments.htm).
nsresult
nsNativeAppSupportOS2::GetCmdLineArgs( LPBYTE request, nsICmdLineService **aResult ) {
nsresult rv = NS_OK;
int justCounting = 1;
char **argv = 0;
// Flags, etc.
int init = 1;
int between, quoted, bSlashCount;
int argc;
char *p;
nsCAutoString arg;
// We loop if we've not finished the second pass through.
while ( 1 ) {
// Initialize if required.
if ( init ) {
p = (char*)request;
between = 1;
argc = quoted = bSlashCount = 0;
init = 0;
}
if ( between ) {
// We are traversing whitespace between args.
// Check for start of next arg.
if ( *p != 0 && !isspace( *p ) ) {
// Start of another arg.
between = 0;
arg = "";
switch ( *p ) {
case '\\':
// Count the backslash.
bSlashCount = 1;
break;
case '"':
// Remember we're inside quotes.
quoted = 1;
break;
default:
// Add character to arg.
arg += *p;
break;
}
} else {
// Another space between args, ignore it.
}
} else {
// We are processing the contents of an argument.
// Check for whitespace or end.
if ( *p == 0 || ( !quoted && isspace( *p ) ) ) {
// Process pending backslashes (interpret them
// literally since they're not followed by a ").
while( bSlashCount ) {
arg += '\\';
bSlashCount--;
}
// End current arg.
if ( !justCounting ) {
argv[argc] = new char[ arg.Length() + 1 ];
strcpy( argv[argc], arg.get() );
}
argc++;
// We're now between args.
between = 1;
} else {
// Still inside argument, process the character.
switch ( *p ) {
case '"':
// First, digest preceding backslashes (if any).
while ( bSlashCount > 1 ) {
// Put one backsplash in arg for each pair.
arg += '\\';
bSlashCount -= 2;
}
if ( bSlashCount ) {
// Quote is literal.
arg += '"';
bSlashCount = 0;
} else {
// Quote starts or ends a quoted section.
if ( quoted ) {
// Check for special case of consecutive double
// quotes inside a quoted section.
if ( *(p+1) == '"' ) {
// This implies a literal double-quote. Fake that
// out by causing next double-quote to look as
// if it was preceded by a backslash.
bSlashCount = 1;
} else {
quoted = 0;
}
} else {
quoted = 1;
}
}
break;
case '\\':
// Add to count.
bSlashCount++;
break;
default:
// Accept any preceding backslashes literally.
while ( bSlashCount ) {
arg += '\\';
bSlashCount--;
}
// Just add next char to the current arg.
arg += *p;
break;
}
}
}
// Check for end of input.
if ( *p ) {
// Go to next character.
p++;
} else {
// If on first pass, go on to second.
if ( justCounting ) {
// Allocate argv array.
argv = new char*[ argc ];
// Start second pass
justCounting = 0;
init = 1;
} else {
// Quit.
break;
}
}
}
// OK, now create nsICmdLineService object from argc/argv.
static NS_DEFINE_CID( kCmdLineServiceCID, NS_COMMANDLINE_SERVICE_CID );
rv = nsComponentManager::CreateInstance( kCmdLineServiceCID,
0,
NS_GET_IID( nsICmdLineService ),
(void**)aResult );
if ( NS_FAILED( rv ) || NS_FAILED( ( rv = (*aResult)->Initialize( argc, argv ) ) ) ) {
#if MOZ_DEBUG_DDE
printf( "Error creating command line service = 0x%08X (argc=%d, argv=0x%08X)\n", (int)rv, (int)argc, (void*)argv );
#endif
}
// Cleanup.
while ( argc ) {
delete [] argv[ --argc ];
}
delete [] argv;
return rv;
}
// Check to see if we have a profile. We will not have a profile
// at this point if we were launched invisibly in -turbo mode, and
// the profile mgr needed to show UI (to pick from multiple profiles).
// At this point, we can show UI, so call DoProfileStartUp().
nsresult
nsNativeAppSupportOS2::EnsureProfile(nsICmdLineService* args)
{
nsresult rv;
nsCOMPtr<nsIProfileInternal> profileMgr(do_GetService(NS_PROFILE_CONTRACTID, &rv));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIAppShellService> appShell(do_GetService("@mozilla.org/appshell/appShellService;1", &rv));
if (NS_FAILED(rv)) return rv;
// If we have a profile, everything is fine.
PRBool haveProfile;
rv = profileMgr->IsCurrentProfileAvailable(&haveProfile);
if (NS_SUCCEEDED(rv) && haveProfile)
return NS_OK;
// If the profile selection is happening, fail.
PRBool doingProfileStartup;
rv = profileMgr->GetIsStartingUp(&doingProfileStartup);
if (NS_FAILED(rv) || doingProfileStartup) return NS_ERROR_FAILURE;
rv = appShell->DoProfileStartup(args, PR_TRUE);
return rv;
}
nsresult
nsNativeAppSupportOS2::OpenWindow( const char*urlstr, const char *args ) {
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
nsCOMPtr<nsISupportsString> sarg(do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
if (sarg)
sarg->SetData(args);
if (wwatch && sarg) {
nsCOMPtr<nsIDOMWindow> newWindow;
rv = wwatch->OpenWindow(0, urlstr, "_blank", "chrome,dialog=no,all",
sarg, getter_AddRefs(newWindow));
#if MOZ_DEBUG_DDE
} else {
printf("Get WindowWatcher (or create string) failed\n");
#endif
}
return rv;
}
static char procPropertyName[] = "MozillaProcProperty";
#ifdef DOWENEED
// Subclass procedure used to filter out WM_SETFOCUS messages while reparenting.
static LRESULT CALLBACK focusFilterProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) {
if ( uMsg == WM_SETFOCUS ) {
// Don't let Mozilla's window procedure see this.
return 0;
} else {
// Pass on all other messages to Mozilla's window proc.
HANDLE oldProc = ::GetProp( hwnd, procPropertyName );
if ( oldProc ) {
return ::CallWindowProc( (WNDPROC)oldProc, hwnd, uMsg, wParam, lParam );
} else {
// Last resort is the default window proc.
return ::DefWindowProc( hwnd, uMsg, wParam, lParam );
}
}
}
#endif /* DOWENEED */
HWND hwndForDOMWindow( nsISupports *window ) {
nsCOMPtr<nsIScriptGlobalObject> ppScriptGlobalObj( do_QueryInterface(window) );
if ( !ppScriptGlobalObj ) {
return 0;
}
nsCOMPtr<nsIDocShell> ppDocShell;
ppScriptGlobalObj->GetDocShell( getter_AddRefs( ppDocShell ) );
if ( !ppDocShell ) {
return 0;
}
nsCOMPtr<nsIBaseWindow> ppBaseWindow( do_QueryInterface( ppDocShell ) );
if ( !ppBaseWindow ) {
return 0;
}
nsCOMPtr<nsIWidget> ppWidget;
ppBaseWindow->GetMainWidget( getter_AddRefs( ppWidget ) );
return (HWND)( ppWidget->GetNativeData( NS_NATIVE_WIDGET ) );
}
nsresult
nsNativeAppSupportOS2::ReParent( nsISupports *window, HWND newParent ) {
HWND hMainFrame = hwndForDOMWindow( window );
if ( !hMainFrame ) {
return NS_ERROR_FAILURE;
}
#ifdef DOWENEED
// Filter out WM_SETFOCUS messages while reparenting to
// other than the desktop.
//
// For some reason, Windows generates one and it causes
// our focus/activation code to assert.
LONG oldProc = 0;
if ( newParent ) {
// Subclass the window.
oldProc = ::SetWindowLong( hMainFrame,
GWL_WNDPROC,
(LONG)(WNDPROC)focusFilterProc );
// Store old procedure in window so it is available within
// focusFilterProc.
::SetProp( hMainFrame, procPropertyName, (HANDLE)oldProc );
}
#endif /* DOWENEED */
// Reset the parent.
WinSetParent( hMainFrame, newParent, FALSE );
#ifdef DOWENEED
// Restore old procedure.
if ( newParent ) {
::SetWindowLong( hMainFrame, GWL_WNDPROC, oldProc );
::RemoveProp( hMainFrame, procPropertyName );
}
#endif /* DOWENEED */
return NS_OK;
}
static const char sJSStackContractID[] = "@mozilla.org/js/xpc/ContextStack;1";
class SafeJSContext {
public:
SafeJSContext();
~SafeJSContext();
nsresult Push();
JSContext *get() { return mContext; }
protected:
nsCOMPtr<nsIThreadJSContextStack> mService;
JSContext *mContext;
};
SafeJSContext::SafeJSContext() : mContext(nsnull) {
}
SafeJSContext::~SafeJSContext() {
JSContext *cx;
nsresult rv;
if(mContext) {
rv = mService->Pop(&cx);
NS_ASSERTION(NS_SUCCEEDED(rv) && cx == mContext, "JSContext push/pop mismatch");
}
}
nsresult SafeJSContext::Push() {
nsresult rv;
if (mContext) // only once
return NS_ERROR_FAILURE;
mService = do_GetService(sJSStackContractID);
if(mService) {
rv = mService->GetSafeJSContext(&mContext);
if (NS_SUCCEEDED(rv) && mContext) {
rv = mService->Push(mContext);
if (NS_FAILED(rv))
mContext = 0;
}
}
return mContext ? NS_OK : NS_ERROR_FAILURE;
}
nsresult
nsNativeAppSupportOS2::OpenBrowserWindow( const char *args, PRBool newWindow ) {
nsresult rv = NS_OK;
// Open the argument URL in the most recently used Navigator window.
// If there is no Nav window, open a new one.
// Get most recently used Nav window.
nsCOMPtr<nsIDOMWindowInternal> navWin;
GetMostRecentWindow( NS_LITERAL_STRING( "navigator:browser" ).get(), getter_AddRefs( navWin ) );
// This isn't really a loop. We just use "break" statements to fall
// out to the OpenWindow call when things go awry.
do {
// If caller requires a new window, then don't use an existing one.
if ( newWindow ) {
break;
}
if ( !navWin ) {
// Have to open a new one.
break;
}
// Get content window.
nsCOMPtr<nsIDOMWindow> content;
navWin->GetContent( getter_AddRefs( content ) );
if ( !content ) {
break;
}
// Convert that to internal interface.
nsCOMPtr<nsIDOMWindowInternal> internalContent( do_QueryInterface( content ) );
if ( !internalContent ) {
break;
}
// Get location.
nsCOMPtr<nsIDOMLocation> location;
internalContent->GetLocation( getter_AddRefs( location ) );
if ( !location ) {
break;
}
// Set up environment.
SafeJSContext context;
if ( NS_FAILED( context.Push() ) ) {
break;
}
// Set href.
nsAutoString url; url.AssignWithConversion( args );
if ( NS_FAILED( location->SetHref( url ) ) ) {
break;
}
// Finally, if we get here, we're done.
return NS_OK;
} while ( PR_FALSE );
// Last resort is to open a brand new window.
return OpenWindow( "chrome://navigator/content", args );
}
#ifdef DOWENEED
// Utility function that sets up system tray icon.
void
nsNativeAppSupportWin::SetupSysTrayIcon() {
// Messages go to the hidden window.
mIconData.hWnd = (HWND)MessageWindow();
// Icon is our default application icon.
mIconData.hIcon = ::LoadIcon( ::GetModuleHandle( NULL ), IDI_APPLICATION ),
// Tooltip is the brand short name.
mIconData.szTip[0] = 0;
nsCOMPtr<nsIStringBundleService> svc( do_GetService( NS_STRINGBUNDLE_CONTRACTID ) );
if ( svc ) {
nsCOMPtr<nsIStringBundle> bundle1;
svc->CreateBundle( "chrome://global/locale/brand.properties", getter_AddRefs( bundle1 ) );
if ( bundle1 ) {
nsXPIDLString tooltip;
bundle1->GetStringFromName( NS_LITERAL_STRING( "brandShortName" ).get(),
getter_Copies( tooltip ) );
// (damned strings...)
nsAutoString autoTip( tooltip );
nsAutoCString tip( autoTip );
::strncpy( mIconData.szTip, (const char*)tip, sizeof mIconData.szTip - 1 );
}
// Build menu.
nsCOMPtr<nsIStringBundle> bundle2;
svc->CreateBundle( "chrome://communicator/locale/profile/profileManager.properties",
getter_AddRefs( bundle2 ) );
nsAutoString exitText;
if ( bundle2 ) {
nsXPIDLString text;
bundle2->GetStringFromName( NS_LITERAL_STRING( "exitButton" ).get(),
getter_Copies( text ) );
exitText = (const PRUnichar*)text;
}
if ( exitText.IsEmpty() ) {
// Fall back to this.
exitText = NS_LITERAL_STRING( "Exit" );
}
// Create menu and add item.
mTrayIconMenu = ::CreatePopupMenu();
::AppendMenuW( mTrayIconMenu, MF_STRING, TURBO_QUIT, exitText.get() );
}
// Add the tray icon.
::Shell_NotifyIcon( NIM_ADD, &mIconData );
}
// Utility function to remove the system tray icon.
void
nsNativeAppSupportWin::RemoveSysTrayIcon() {
// Remove the tray icon.
::Shell_NotifyIcon( NIM_DELETE, &mIconData );
// Delete the menu.
::DestroyMenu( mTrayIconMenu );
}
#endif /* DOWENEED */
// This opens a special browser window for purposes of priming the pump for
// server mode (getting stuff into the caching, loading .dlls, etc.). The
// window will have these attributes:
// - Load about:blank (no home page)
// - No toolbar (so there's no sidebar panels loaded, either)
// - Pass magic arg to cause window to close in onload handler.
NS_IMETHODIMP
nsNativeAppSupportOS2::StartServerMode() {
#ifdef DOWENEED
// Turn on system tray icon.
SetupSysTrayIcon();
#endif /* DOWENEED */
// Create some of the objects we'll need.
nsCOMPtr<nsIWindowWatcher> ww(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
nsCOMPtr<nsISupportsWString> arg1(do_CreateInstance(NS_SUPPORTS_WSTRING_CONTRACTID));
nsCOMPtr<nsISupportsWString> arg2(do_CreateInstance(NS_SUPPORTS_WSTRING_CONTRACTID));
if ( !ww || !arg1 || !arg2 ) {
return NS_OK;
}
// Create the array for the arguments.
nsCOMPtr<nsISupportsArray> argArray;
NS_NewISupportsArray( getter_AddRefs( argArray ) );
if ( !argArray ) {
return NS_OK;
}
// arg1 is the url to load.
// arg2 is the string that tells navigator.js to auto-close.
arg1->SetData( NS_LITERAL_STRING( "about:blank" ).get() );
arg2->SetData( NS_LITERAL_STRING( "turbo=yes" ).get() );
// Put args into array.
if ( NS_FAILED( argArray->AppendElement( arg1 ) ) ||
NS_FAILED( argArray->AppendElement( arg2 ) ) ) {
return NS_OK;
}
// Now open the window.
nsCOMPtr<nsIDOMWindow> newWindow;
ww->OpenWindow( 0,
"chrome://navigator/content",
"_blank",
"chrome,dialog=no,toolbar=no",
argArray,
getter_AddRefs( newWindow ) );
if ( !newWindow ) {
return NS_OK;
}
// Hide this window by re-parenting it (to ensure it doesn't appear).
ReParent( newWindow, (HWND)MessageWindow() );
return NS_OK;
}
NS_IMETHODIMP
nsNativeAppSupportOS2::SetIsServerMode( PRBool isServerMode ) {
// If it is being turned off, remove systray icon.
if ( mServerMode && !isServerMode ) {
#ifdef DOWENEED
RemoveSysTrayIcon();
#endif /* DOWENEED */
}
return nsNativeAppSupportBase::SetIsServerMode( isServerMode );
}
NS_IMETHODIMP
nsNativeAppSupportOS2::OnLastWindowClosing( nsIXULWindow *aWindow ) {
nsresult rv;
if (!mServerMode)
return NS_OK;
// If the last window closed is our special "turbo" window made
// in StartServerMode(), don't do anything.
nsCOMPtr<nsIDocShell> docShell;
(void)aWindow->GetDocShell(getter_AddRefs(docShell));
nsCOMPtr<nsIDOMWindow> domWindow(do_GetInterface(docShell));
if (domWindow == mInitialWindow) {
mInitialWindow = nsnull;
return NS_OK;
}
nsCOMPtr<nsIProfileInternal> profileMgr(do_GetService(NS_PROFILE_CONTRACTID, &rv));
if (NS_FAILED(rv)) return rv;
rv = profileMgr->ShutDownCurrentProfile(nsIProfile::SHUTDOWN_PERSIST);
if (NS_FAILED(rv)) return rv;
return NS_OK;
}
// go through the command line arguments, and try to load a handler
// for one, and when we do, get the chrome URL for its task
nsresult
nsNativeAppSupportOS2::GetStartupURL(nsICmdLineService *args, nsCString& taskURL)
{
nsresult rv;
nsCOMPtr<nsICmdLineHandler> handler;
// see if there is a handler
rv = args->GetHandlerForParam(nsnull, getter_AddRefs(handler));
if (NS_FAILED(rv)) return rv;
// ok, from here on out, failures really are fatal
nsXPIDLCString url;
rv = handler->GetChromeUrlForTask(getter_Copies(url));
if (NS_FAILED(rv)) return rv;
taskURL.Assign(url.get());
return NS_OK;
}
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