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gecko/toolkit/xre/nsNativeAppSupportOS2.cpp

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Free the (distributed) Lizard! Automatic merge from CVS: Module mozilla: tag HG_REPO_INITIAL_IMPORT at 22 Mar 2007 10:30 PDT,
2007-03-22 10:30:00 -07:00
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bill Law law@netscape.com
* IBM Corp.
* Rich Walsh dragtext@e-vertise.com
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifdef MOZ_OS2_HIGH_MEMORY
// os2safe.h has to be included before os2.h, needed for high mem
#include <os2safe.h>
#endif
#define INCL_PM
#define INCL_GPI
#define INCL_DOS
#define INCL_DOSERRORS
#include <os2.h>
#include "nsNativeAppSupportBase.h"
#include "nsNativeAppSupportOS2.h"
#include "nsAppRunner.h"
#include "nsXULAppAPI.h"
#include "nsString.h"
#include "nsIBrowserDOMWindow.h"
#include "nsICommandLineRunner.h"
#include "nsCOMPtr.h"
#include "nsXPIDLString.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMChromeWindow.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsISupportsArray.h"
#include "nsIWindowWatcher.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIBaseWindow.h"
#include "nsIWidget.h"
#include "nsIAppShellService.h"
#include "nsIXULWindow.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIPromptService.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsIObserver.h"
#include "nsIObserverService.h"
// These are needed to load a URL in a browser window.
#include "nsIDOMLocation.h"
#include "nsIJSContextStack.h"
#include "nsIWebNavigation.h"
#include "nsIWindowMediator.h"
#include <stdlib.h>
#include "prprf.h"
#define kMailtoUrlScheme "mailto:"
/* 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_WINDOWMEDIATOR_CONTRACTID, &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();
}
}
#ifdef DEBUG_law
#undef MOZ_DEBUG_DDE
#define MOZ_DEBUG_DDE 1
#endif
// Simple Win32 mutex wrapper.
struct Mutex {
Mutex( const char *name )
: mName( name ),
mHandle( 0 ),
mState( 0xFFFF ) {
/* OS/2 named semaphores must begin with "\\SEM32\\" to be valid */
mName.Insert("\\SEM32\\", 0);
APIRET rc = DosCreateMutexSem(mName.get(), &mHandle, 0, FALSE);
if (rc != NO_ERROR) {
#if MOZ_DEBUG_DDE
printf("CreateMutex error = 0x%08X\n", (int)rc);
#endif
}
}
~Mutex() {
if ( mHandle ) {
// Make sure we release it if we own it.
Unlock();
APIRET rc = DosCloseMutexSem(mHandle);
if (rc != NO_ERROR) {
#if MOZ_DEBUG_DDE
printf("CloseHandle error = 0x%08X\n", (int)rc);
#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 = 0xFFFF;
}
}
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 nsIObserver
{
public:
NS_DECL_NSIOBSERVER
NS_DECL_ISUPPORTS_INHERITED
// Overrides of base implementation.
NS_IMETHOD Start( PRBool *aResult );
NS_IMETHOD Stop( PRBool *aResult );
NS_IMETHOD Quit();
NS_IMETHOD Enable();
// 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 HandleCommandLine(const char* aCmdLineString, nsIFile* aWorkingDir, PRUint32 aState);
static void ParseDDEArg( HSZ args, int index, nsCString& string);
static void ParseDDEArg( const char* args, int index, nsCString& aString);
static void ActivateLastWindow();
static HDDEDATA CreateDDEData( DWORD value );
static HDDEDATA CreateDDEData( LPBYTE value, DWORD len );
static PRBool InitTopicStrings();
static int FindTopic( HSZ topic );
static nsresult OpenWindow( const char *urlstr, const char *args );
static nsresult OpenBrowserWindow();
static int mConversations;
enum {
topicOpenURL,
topicActivate,
topicCancelProgress,
topicVersion,
topicRegisterViewer,
topicUnRegisterViewer,
topicGetWindowInfo,
// Note: Insert new values above this line!!!!!
topicCount // Count of the number of real topics
};
static HSZ mApplication, mTopics[ topicCount ];
static DWORD mInstance;
static PRBool mCanHandleRequests;
static char mMutexName[];
static PRBool mUseDDE;
friend struct MessageWindow;
}; // nsNativeAppSupportOS2
NS_INTERFACE_MAP_BEGIN(nsNativeAppSupportOS2)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_END_INHERITING(nsNativeAppSupportBase)
NS_IMPL_ADDREF_INHERITED(nsNativeAppSupportOS2, nsNativeAppSupportBase)
NS_IMPL_RELEASE_INHERITED(nsNativeAppSupportOS2, nsNativeAppSupportBase)
void
nsNativeAppSupportOS2::CheckConsole() {
return;
}
// Create and return an instance of class nsNativeAppSupportOS2.
nsresult
NS_CreateNativeAppSupport( nsINativeAppSupport **aResult ) {
nsNativeAppSupportOS2 *pNative = new nsNativeAppSupportOS2;
if (!pNative) return NS_ERROR_OUT_OF_MEMORY;
// Check for dynamic console creation request.
pNative->CheckConsole();
*aResult = pNative;
NS_ADDREF( *aResult );
return NS_OK;
}
// Constants
#define MOZ_DDE_APPLICATION "Mozilla"
#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",
"WWW_GetWindowInfo" };
// Static member definitions.
int nsNativeAppSupportOS2::mConversations = 0;
HSZ nsNativeAppSupportOS2::mApplication = 0;
HSZ nsNativeAppSupportOS2::mTopics[nsNativeAppSupportOS2::topicCount] = { 0 };
DWORD nsNativeAppSupportOS2::mInstance = 0;
PRBool nsNativeAppSupportOS2::mCanHandleRequests = PR_FALSE;
// 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;
rc = DosLoadModule( NULL, 0, "PMDDEML", &hmodDDEML );
if( rc == NO_ERROR )
{
int i;
/* all of this had better work. Get ready to be a success! */
bRC = TRUE;
for( i=0; 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 );
}
char nsNativeAppSupportOS2::mMutexName[ 128 ] = { 0 };
// Message window encapsulation.
struct MessageWindow {
// ctor/dtor are simplistic
MessageWindow() {
// Try to find window.
HATOMTBL hatomtbl;
HENUM henum;
HWND hwndNext;
char classname[CCHMAXPATH];
mHandle = NULLHANDLE;
hatomtbl = WinQuerySystemAtomTable();
mMsgWindowAtom = WinFindAtom(hatomtbl, className());
if (mMsgWindowAtom == 0)
{
// If there is not atom in the system table for this class name, then
// we can assume that the app is not currently running.
mMsgWindowAtom = WinAddAtom(hatomtbl, className());
} else {
// Found an existing atom for this class name. Cycle through existing
// windows and see if one with our window id and class name already
// exists
henum = WinBeginEnumWindows(HWND_OBJECT);
while ((hwndNext = WinGetNextWindow(henum)) != NULLHANDLE)
{
if (WinQueryWindowUShort(hwndNext, QWS_ID) == (USHORT)mMsgWindowAtom)
{
WinQueryClassName(hwndNext, CCHMAXPATH, classname);
if (strcmp(classname, className()) == 0)
{
mHandle = hwndNext;
break;
}
}
}
}
}
HWND getHWND() {
return mHandle;
}
// Class name: appName + "MessageWindow"
static const char *className() {
static char classNameBuffer[128];
static char *mClassName = 0;
if ( !mClassName ) {
sprintf( classNameBuffer,
"%s%s",
gAppData->name,
"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
(USHORT)mMsgWindowAtom, // id
NULL, // pCtlData
NULL ); // pres params
#if MOZ_DEBUG_DDE
printf( "Message window = 0x%08X\n", (int)mHandle );
#endif
return NS_OK;
}
// Destory: Get rid of window and reset mHandle.
NS_IMETHOD Destroy() {
nsresult retval = NS_OK;
if ( mHandle ) {
HATOMTBL hatomtbl = WinQuerySystemAtomTable();
WinDeleteAtom(hatomtbl, mMsgWindowAtom);
// DestroyWindow can only destroy windows created from
// the same thread.
BOOL desRes = WinDestroyWindow( mHandle );
if ( FALSE != desRes ) {
mHandle = NULL;
}
else {
retval = NS_ERROR_FAILURE;
}
}
return retval;
}
// SendRequest: Construct a data buffer <commandline>\0<workingdir>\0,
// then pass the string via WM_COPYDATA to the message window.
NS_IMETHOD SendRequest( const char *cmd )
{
/* 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;
PVOID pvData = NULL;
if (!cmd)
return NS_ERROR_FAILURE;
ULONG ulSize = sizeof(COPYDATASTRUCT)+strlen(cmd)+1+CCHMAXPATH;
#ifdef MOZ_OS2_HIGH_MEMORY
APIRET rc = DosAllocSharedMem( &pvData, NULL, ulSize,
PAG_COMMIT | PAG_READ | PAG_WRITE | OBJ_GETTABLE | OBJ_ANY);
if (rc != NO_ERROR) { // Did the kernel handle OBJ_ANY?
// Try again without OBJ_ANY and if the first failure was not caused
// by OBJ_ANY then we will get the same failure, else we have taken
// care of pre-FP13 systems where the kernel couldn't handle it.
rc = DosAllocSharedMem( &pvData, NULL, ulSize,
PAG_COMMIT | PAG_READ | PAG_WRITE | OBJ_GETTABLE);
if (rc != NO_ERROR) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
#else
if (DosAllocSharedMem( &pvData, NULL, ulSize,
PAG_COMMIT | PAG_READ | PAG_WRITE | OBJ_GETTABLE | OBJ_ANY))
return NS_ERROR_OUT_OF_MEMORY;
#endif
// We used to set dwData to zero, when we didn't send the
// working dir. Now we're using it as a version number.
// The commandline goes in the buffer space immediately after
// the COPYDATASTRUCT; the current directory follows that.
pcds = (COPYDATASTRUCT *)(pvData);
pcds->dwData = 1;
char * ptr = &(pcds->chBuff);
pcds->lpData = ptr;
strcpy( ptr, cmd);
pcds->cbData = strlen( ptr) + 1;
ptr += pcds->cbData;
if (DosQueryPathInfo( ".", FIL_QUERYFULLNAME, ptr, CCHMAXPATH)) {
ptr[0] = '.';
ptr[1] = '\0';
}
pcds->cbData += strlen( ptr) + 1;
WinSendMsg( mHandle, WM_COPYDATA, 0, (MPARAM)pcds );
DosFreeMem( pvData );
return NS_OK;
}
// Window proc.
static
MRESULT EXPENTRY WindowProc( HWND msgWindow, ULONG msg, MPARAM wp, MPARAM lp )
{
// We have to return a FALSE from WM_CREATE
if ( msg == WM_CREATE )
return (MRESULT)FALSE;
if ( msg != WM_COPYDATA )
return (MRESULT)TRUE;
// This is an incoming request.
COPYDATASTRUCT *cds = (COPYDATASTRUCT*)lp;
DosGetSharedMem( (PVOID)cds, PAG_READ|PAG_WRITE );
nsCOMPtr<nsILocalFile> workingDir;
// a "1" or greater indicates that the other process's working
// directory follows the commandline string - locate & convert it
if (cds->dwData >= 1) {
char* wdpath = strchr( (char*)cds->lpData, 0) + 1;
NS_NewNativeLocalFile(nsDependentCString(wdpath),
PR_FALSE, getter_AddRefs(workingDir));
}
nsNativeAppSupportOS2::HandleCommandLine((char*)cds->lpData,
workingDir, nsICommandLine::STATE_REMOTE_AUTO);
return (MRESULT)TRUE;
}
private:
HWND mHandle;
USHORT mMsgWindowAtom;
}; // struct MessageWindow
PRBool nsNativeAppSupportOS2::mUseDDE = PR_FALSE;
/* 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;
// see if DDE should be enabled AND remove OS/2-specific
// options the app's commandline handler won't recognize
// (-console was handled earlier by StartOS2App())
for (int i = 1; i < gArgc; i++) {
if (stricmp("-dde", gArgv[i]) == 0 ||
stricmp("/dde", gArgv[i]) == 0)
mUseDDE = PR_TRUE;
else
if (stricmp("-console", gArgv[i]) != 0 &&
stricmp("/console", gArgv[i]) != 0)
continue;
for (int j = i; j < gArgc; j++)
gArgv[j] = gArgv[j+1];
gArgc--;
i--;
}
// if this is a standalone instance, turn off DDE regardless of the
// commandline, then skip out before we look for another instance
if (getenv("MOZ_NO_REMOTE")) {
mUseDDE = PR_FALSE;
*aResult = PR_TRUE;
return NS_OK;
}
// Grab mutex first.
// Build mutex name from app name.
PR_snprintf( mMutexName, sizeof mMutexName, "%s%s", gAppData->name, MOZ_STARTUP_MUTEX_NAME );
Mutex startupLock = Mutex( mMutexName );
NS_ENSURE_TRUE( startupLock.Lock( MOZ_DDE_START_TIMEOUT ), NS_ERROR_FAILURE );
/* 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 );
}
// Search for existing message window.
MessageWindow msgWindow;
if ( msgWindow.getHWND() ) {
// 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
if (mUseDDE)
this->StartDDE();
// Tell caller to spin message loop.
*aResult = PR_TRUE;
}
}
startupLock.Unlock();
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);
}
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 );
/* Get entrypoints for PMDDEML */
BOOL bDDEML = SetupOS2ddeml();
/* If we couldn't initialize DDEML, set mUSEDDE to PR_FALSE */
/* so we don't do anything else DDE related */
if (!bDDEML) {
mUseDDE = PR_FALSE;
return NS_OK;
}
// Initialize DDE.
NS_ENSURE_TRUE( DDEERR_NO_ERROR == WinDdeInitialize( &mInstance,
nsNativeAppSupportOS2::HandleDDENotification,
APPCLASS_STANDARD,
0 ),
NS_ERROR_FAILURE );
// Allocate DDE strings.
NS_ENSURE_TRUE( ( mApplication = WinDdeCreateStringHandle( (char*) gAppData->name, 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;
if (!mUseDDE) {
return rv;
}
Mutex ddeLock( mMutexName );
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;
}
NS_IMETHODIMP
nsNativeAppSupportOS2::Observe(nsISupports* aSubject, const char* aTopic,
const PRUnichar* aData)
{
if (strcmp(aTopic, "quit-application") == 0) {
Quit();
} else {
NS_ERROR("Unexpected observer topic.");
}
return NS_OK;
}
// Terminate DDE regardless.
NS_IMETHODIMP
nsNativeAppSupportOS2::Quit() {
// If another process wants to look for the message window, they need
// to wait to hold the lock, in which case they will not find the
// window as we will destroy ours under our lock.
// When the mutex goes off the stack, it is unlocked via destructor.
Mutex mutexLock(mMutexName);
NS_ENSURE_TRUE(mutexLock.Lock(MOZ_DDE_START_TIMEOUT), NS_ERROR_FAILURE);
// If we've got a message window to receive IPC or new window requests,
// get rid of it as we are shutting down.
// Note: Destroy calls DestroyWindow, which will only work on a window
// created by the same thread.
MessageWindow mw;
mw.Destroy();
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;
}
NS_IMETHODIMP
nsNativeAppSupportOS2::Enable()
{
mCanHandleRequests = PR_TRUE;
nsCOMPtr<nsIObserverService> obs
(do_GetService("@mozilla.org/observer-service;1"));
if (obs) {
obs->AddObserver(this, "quit-application", PR_FALSE);
} else {
NS_ERROR("No observer service?");
}
return NS_OK;
}
#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;
}
#endif
// Utility function to escape double-quotes within a string.
static void escapeQuotes( nsAString &aString ) {
PRInt32 offset = -1;
while( 1 ) {
// Find next '"'.
offset = aString.FindChar( '"', ++offset );
if ( offset == kNotFound ) {
// No more quotes, exit.
break;
} else {
// Insert back-slash ahead of the '"'.
aString.Insert( PRUnichar('\\'), offset );
// Increment offset because we just inserted a slash
offset++;
}
}
return;
}
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...
// Get the URL from the first argument in the command.
nsCAutoString url;
ParseDDEArg(hsz2, 0, url);
// Read the 3rd argument in the command to determine if a
// new window is to be used.
nsCAutoString windowID;
ParseDDEArg(hsz2, 2, windowID);
// to open the URL in a new window, the old OS/2 code
// looks for "0" while the new Win32 code looks for "";
// not knowing which is correct, we'll look for both
if (windowID.Equals( "0" ) || windowID.Equals( "" ))
url.Insert("mozilla -new-window ", 0);
else
url.Insert("mozilla -url ", 0);
#if MOZ_DEBUG_DDE
printf( "Handling dde XTYP_REQUEST request: [%s]...\n", url.get() );
#endif
// Now handle it.
HandleCommandLine(url.get(), nsnull, nsICommandLine::STATE_REMOTE_EXPLICIT);
// Return pseudo window ID.
result = CreateDDEData( 1 );
break;
}
case topicGetWindowInfo: {
// This topic has to get the current URL, get the current
// page title and then format the output into the DDE
// return string. The return value is "URL","Page Title",
// "Window ID" however the window ID is not used for this
// command, therefore it is returned as a null string
// This isn't really a loop. We just use "break"
// statements to bypass the remaining steps when
// something goes wrong.
do {
// Get most recently used Nav window.
nsCOMPtr<nsIDOMWindowInternal> navWin;
GetMostRecentWindow( NS_LITERAL_STRING( "navigator:browser" ).get(),
getter_AddRefs( navWin ) );
if ( !navWin ) {
// There is not a window open
break;
}
// Get content window.
nsCOMPtr<nsIDOMWindow> content;
navWin->GetContent( getter_AddRefs( content ) );
if ( !content ) {
break;
}
// Convert that to internal interface.
nsCOMPtr<nsPIDOMWindow> internalContent( do_QueryInterface( content ) );
if ( !internalContent ) {
break;
}
// Get location.
nsCOMPtr<nsIDOMLocation> location;
internalContent->GetLocation( getter_AddRefs( location ) );
if ( !location ) {
break;
}
// Get href for URL.
nsAutoString url;
if ( NS_FAILED( location->GetHref( url ) ) ) {
break;
}
// Escape any double-quotes.
escapeQuotes( url );
// Now for the title...
// Get the base window from the doc shell...
nsCOMPtr<nsIBaseWindow> baseWindow =
do_QueryInterface( internalContent->GetDocShell() );
if ( !baseWindow ) {
break;
}
// And from the base window we can get the title.
nsXPIDLString title;
if(!baseWindow) {
break;
}
baseWindow->GetTitle(getter_Copies(title));
// Escape any double-quotes in the title.
escapeQuotes( title );
// Use a string buffer for the output data, first
// save a quote.
nsCAutoString outpt( NS_LITERAL_CSTRING("\"") );
// Now copy the URL converting the Unicode string
// to a single-byte ASCII string
outpt.Append( NS_LossyConvertUTF16toASCII( url ) );
// Add the "," used to separate the URL and the page
// title
outpt.Append( NS_LITERAL_CSTRING("\",\"") );
// Now copy the current page title to the return string
outpt.Append( NS_LossyConvertUTF16toASCII( title.get() ));
// Fill out the return string with the remainin ",""
outpt.Append( NS_LITERAL_CSTRING( "\",\"\"" ));
// Create a DDE handle to a char string for the data
// being returned, this copies and creates a "shared"
// copy of the DDE response until the calling APP
// reads it and says it can be freed.
result = CreateDDEData( (LPBYTE)(const char*)outpt.get(),
outpt.Length() + 1 );
#if MOZ_DEBUG_DDE
printf( "WWW_GetWindowInfo->%s\n", outpt.get() );
#endif
} while ( PR_FALSE );
break;
}
case topicActivate: {
// Activate a Nav window...
nsCAutoString windowID;
ParseDDEArg(hsz2, 0, windowID);
// 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
nsCAutoString url;
ParseDDEArg((const char*) request, 0, url);
// Read the 3rd argument in the command to determine if a
// new window is to be used.
nsCAutoString windowID;
ParseDDEArg((const char*) request, 2, windowID);
// to open the URL in a new window, the old OS/2 code
// looks for "0" while the new Win32 code looks for "";
// not knowing which is correct, we'll look for both
if (windowID.Equals( "0" ) || windowID.Equals( "" ))
url.Insert("mozilla -new-window ", 0);
else
url.Insert("mozilla -url ", 0);
#if MOZ_DEBUG_DDE
printf( "Handling dde XTYP_REQUEST request: [%s]...\n", url.get() );
#endif
// Now handle it.
HandleCommandLine(url.get(), nsnull, nsICommandLine::STATE_REMOTE_EXPLICIT);
// Release the data.
// DdeUnaccessData( hdata );
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 function to advance to end of quoted string.
// p+offset must point to the comma preceding the arg on entry.
// On return, p+result points to the closing '"' (or end of the string
// if the closing '"' is missing) if the arg is quoted. If the arg
// is not quoted, then p+result will point to the first character
// of the arg.
static PRInt32 advanceToEndOfQuotedArg( const char *p, PRInt32 offset, PRInt32 len ) {
// Check whether the current arg is quoted.
if ( p[++offset] == '"' ) {
// Advance past the closing quote.
while ( offset < len && p[++offset] != '"' ) {
// If the current character is a backslash, then the
// next character can't be a *real* '"', so skip it.
if ( p[offset] == '\\' ) {
offset++;
}
}
}
return offset;
}
void nsNativeAppSupportOS2::ParseDDEArg( const char* args, int index, nsCString& aString) {
if ( args ) {
int argLen = strlen(args);
nsDependentCString temp(args, argLen);
// offset points to the comma preceding the desired arg.
PRInt32 offset = -1;
// Skip commas till we get to the arg we want.
while( index-- ) {
// If this arg is quoted, then go to closing quote.
offset = advanceToEndOfQuotedArg( args, offset, argLen);
// Find next comma.
offset = temp.FindChar( ',', offset );
if ( offset == kNotFound ) {
// No more commas, give up.
aString = args;
return;
}
}
// The desired argument starts just past the preceding comma,
// which offset points to, and extends until the following
// comma (or the end of the string).
//
// Since the argument might be enclosed in quotes, we need to
// deal with that before searching for the terminating comma.
// We advance offset so it ends up pointing to the start of
// the argument we want.
PRInt32 end = advanceToEndOfQuotedArg( args, offset++, argLen );
// Find next comma (or end of string).
end = temp.FindChar( ',', end );
if ( end == kNotFound ) {
// Arg is the rest of the string.
end = argLen;
}
// Extract result.
aString.Assign( args + offset, end - offset );
}
return;
}
// Utility to parse out argument from a DDE item string.
void nsNativeAppSupportOS2::ParseDDEArg( HSZ args, int index, nsCString& aString) {
DWORD argLen = WinDdeQueryString( args, NULL, NULL, CP_WINANSI );
// there wasn't any string, so return empty string
if ( !argLen ) return;
nsCAutoString temp;
// Ensure result's buffer is sufficiently big.
temp.SetLength( argLen );
// Now get the string contents.
WinDdeQueryString( args, temp.BeginWriting(), temp.Length(), CP_WINANSI );
// Parse out the given arg.
ParseDDEArg(temp.get(), index, aString);
return;
}
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();
}
HDDEDATA nsNativeAppSupportOS2::CreateDDEData( DWORD value ) {
return CreateDDEData( (LPBYTE)&value, sizeof value );
}
HDDEDATA nsNativeAppSupportOS2::CreateDDEData( LPBYTE value, DWORD len ) {
HDDEDATA result = WinDdeCreateDataHandle( value,
len,
0,
mApplication,
CF_TEXT,
0 );
return result;
}
void
nsNativeAppSupportOS2::HandleCommandLine(const char* aCmdLineString,
nsIFile* aWorkingDir,
PRUint32 aState)
{
nsresult rv;
int justCounting = 1;
char **argv = 0;
// Flags, etc.
int init = 1;
int between, quoted, bSlashCount;
int argc;
const char *p;
nsCAutoString arg;
nsCOMPtr<nsICommandLineRunner> cmdLine
(do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
if (!cmdLine) {
NS_ERROR("Couldn't create command line!");
return;
}
// We loop if we've not finished the second pass through.
while ( 1 ) {
// Initialize if required.
if ( init ) {
p = aCmdLineString;
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 the argument we are parsing is a mailto url then all
// of the remaining command line data needs to be part of
// the mailto url even if it has spaces. See Bug #231032
nsDependentCString mailtoUrlScheme (kMailtoUrlScheme);
if ( *p == 0 || ( !quoted && isspace( *p ) && !StringBeginsWith(arg, mailtoUrlScheme, nsCaseInsensitiveCStringComparator()) ) ) {
// 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;
}
}
}
rv = cmdLine->Init(argc, argv, aWorkingDir, aState);
// if these OS/2-specific flags aren't removed,
// any URL following them will be ignored
PRBool found;
cmdLine->HandleFlag(NS_LITERAL_STRING("console"), PR_FALSE, &found);
cmdLine->HandleFlag(NS_LITERAL_STRING("dde"), PR_FALSE, &found);
// Cleanup.
while ( argc ) {
delete [] argv[ --argc ];
}
delete [] argv;
if (NS_FAILED(rv)) {
NS_ERROR("Error initializing command line.");
return;
}
cmdLine->Run();
}
nsresult
nsNativeAppSupportOS2::OpenWindow( const char*urlstr, const char *args ) {
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID));
nsCOMPtr<nsISupportsCString> sarg(do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID));
if (sarg)
sarg->SetData(nsDependentCString(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;
}
HWND hwndForDOMWindow( nsISupports *window ) {
nsCOMPtr<nsPIDOMWindow> pidomwindow( do_QueryInterface(window) );
if ( !pidomwindow ) {
return 0;
}
nsCOMPtr<nsIBaseWindow> ppBaseWindow =
do_QueryInterface( pidomwindow->GetDocShell() );
if ( !ppBaseWindow ) {
return 0;
}
nsCOMPtr<nsIWidget> ppWidget;
ppBaseWindow->GetMainWidget( getter_AddRefs( ppWidget ) );
return (HWND)( ppWidget->GetNativeData( NS_NATIVE_WIDGET ) );
}
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() {
if (mContext) // only once
return NS_ERROR_FAILURE;
mService = do_GetService(sJSStackContractID);
if(mService) {
JSContext *cx;
if (NS_SUCCEEDED(mService->GetSafeJSContext(&cx)) &&
cx &&
NS_SUCCEEDED(mService->Push(cx))) {
// Save cx in mContext to indicate need to pop.
mContext = cx;
}
}
return mContext ? NS_OK : NS_ERROR_FAILURE;
}
// As of Jan, 2005, most of the code in this method is pointless and
// will never be used. It is only called by ActivateLastWindow() and
// only when there is no existing window. Consequently, the first test
// below [if ( !navWin )] will always fail, bypassing everything in the
// dummy do..while() loop. Given that this file is largely a port of
// the Win32 version, it is left in place to maintain concurrency.
nsresult
nsNativeAppSupportOS2::OpenBrowserWindow()
{
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.
// If at all possible, hand the request off to the most recent
// browser 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 ( !navWin ) {
// Have to open a new one.
break;
}
nsCOMPtr<nsIBrowserDOMWindow> bwin;
{ // scope a bunch of temporary cruft used to generate bwin
nsCOMPtr<nsIWebNavigation> navNav( do_GetInterface( navWin ) );
nsCOMPtr<nsIDocShellTreeItem> navItem( do_QueryInterface( navNav ) );
if ( navItem ) {
nsCOMPtr<nsIDocShellTreeItem> rootItem;
navItem->GetRootTreeItem( getter_AddRefs( rootItem ) );
nsCOMPtr<nsIDOMWindow> rootWin( do_GetInterface( rootItem ) );
nsCOMPtr<nsIDOMChromeWindow> chromeWin(do_QueryInterface(rootWin));
if ( chromeWin )
chromeWin->GetBrowserDOMWindow( getter_AddRefs ( bwin ) );
}
}
if ( bwin ) {
nsCOMPtr<nsIURI> uri;
NS_NewURI( getter_AddRefs( uri ), NS_LITERAL_CSTRING("about:blank"), 0, 0 );
if ( uri ) {
nsCOMPtr<nsIDOMWindow> container;
rv = bwin->OpenURI( uri, 0,
nsIBrowserDOMWindow::OPEN_DEFAULTWINDOW,
nsIBrowserDOMWindow::OPEN_EXTERNAL,
getter_AddRefs( container ) );
if ( NS_SUCCEEDED( rv ) )
return NS_OK;
}
}
NS_ERROR("failed to hand off external URL to extant window\n");
} while ( PR_FALSE );
// open a new window if caller requested it or if anything above failed
char* argv[] = { 0 };
nsCOMPtr<nsICommandLineRunner> cmdLine
(do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
NS_ENSURE_TRUE(cmdLine, NS_ERROR_FAILURE);
rv = cmdLine->Init(0, argv, nsnull, nsICommandLine::STATE_REMOTE_EXPLICIT);
NS_ENSURE_SUCCESS(rv, rv);
return cmdLine->Run();
}
// This is a public function called by nsAppRunner.cpp. Its primary
// purpose is to determine if any commandline options require a VIO
// ("console") window. If so and one isn't present, it will restart
// the app in a VIO session. It is intended to be called as early as
// possible during startup and before any other commandline processing.
// It returns TRUE if the current instance should continue running and
// FALSE if it should terminate upon this function's return.
PRBool StartOS2App(int aArgc, char **aArgv)
{
PRBool rv = PR_TRUE;
PPIB ppib;
PTIB ptib;
DosGetInfoBlocks(&ptib, &ppib);
// if this isn't a PM session, reset the session type to enable use
// of PM functions; if it is PM, see if a VIO session is required
if (ppib->pib_ultype != SSF_TYPE_PM)
ppib->pib_ultype = SSF_TYPE_PM;
else {
for (int i = 1; i < aArgc; i++ ) {
char *arg = aArgv[i];
if (*arg != '-' && *arg != '/')
continue;
arg++;
if (stricmp("?", arg) == 0 ||
stricmp("h", arg) == 0 ||
stricmp("v", arg) == 0 ||
stricmp("help", arg) == 0 ||
stricmp("version", arg) == 0 ||
stricmp("console", arg) == 0) {
rv = PR_FALSE;
break;
}
}
}
// if the session type is OK, increase the number of
// file handles available to the app, then exit
if (rv) {
ULONG ulMaxFH = 0;
LONG ulReqCount = 0;
DosSetRelMaxFH(&ulReqCount, &ulMaxFH);
if (ulMaxFH < 256)
DosSetMaxFH(256);
return rv;
}
// the app has to be restarted in a VIO session
char szErrObj[64] = "";
STARTDATA x;
memset(&x, 0, sizeof(x));
x.Length = sizeof(x);
(const char* const)(x.PgmTitle) = gAppData->name;
x.InheritOpt = SSF_INHERTOPT_PARENT;
x.SessionType = SSF_TYPE_WINDOWABLEVIO;
x.PgmControl = SSF_CONTROL_NOAUTOCLOSE;
x.ObjectBuffer = szErrObj;
x.ObjectBuffLen = sizeof(szErrObj);
// the f/q exename is the string preceding ppib->pib_pchcmd;
// the original commandline is the string following it
char * ptr = ppib->pib_pchcmd - 2;
while (*ptr)
ptr--;
x.PgmName = ptr + 1;
x.PgmInputs = strchr(ppib->pib_pchcmd, 0) + 1;
// restart the app; if this session is in the background, trying
// to start in the foreground will produce an error, but the app
// will still start; if DosStartSession has a real failure, forget
// the console and let the current instance keep running
ULONG ulSession;
PID pid;
ULONG rc = DosStartSession(&x, &ulSession, &pid);
if (rc && rc != ERROR_SMG_START_IN_BACKGROUND)
rv = PR_TRUE;
return rv;
}
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