pjs/mailnews/compose/build/nsMsgCompFactory.cpp

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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 Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "msgCore.h"
#include "nsIFactory.h"
#include "nsISupports.h"
#include "pratom.h"
#include "nsMsgCompCID.h"
/* Include all of the interfaces our factory can generate components for */
#include "nsISmtpService.h"
#include "nsSmtpService.h"
#include "nsComposer.h"
#include "nsComposeAppCore.h"
#include "nsMsgComposeFact.h"
#include "nsMsgCompFieldsFact.h"
#include "nsMsgSendFact.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_CID(kCMsgComposeCID, NS_MSGCOMPOSE_CID);
static NS_DEFINE_CID(kCMsgCompFieldsCID, NS_MSGCOMPFIELDS_CID);
static NS_DEFINE_CID(kCMsgSendCID, NS_MSGSEND_CID);
static NS_DEFINE_CID(kCSmtpServiceCID, NS_SMTPSERVICE_CID);
static NS_DEFINE_CID(kCComposeAppCoreCID, NS_COMPOSEAPPCORE_CID);
static NS_DEFINE_CID(kCComposerBootstrapCID, NS_COMPOSERBOOTSTRAP_CID);
static NS_DEFINE_CID(kCComposerCID, NS_COMPOSER_CID);
////////////////////////////////////////////////////////////
//
////////////////////////////////////////////////////////////
static PRInt32 g_InstanceCount = 0;
static PRInt32 g_LockCount = 0;
class nsMsgComposeFactory : public nsIFactory
{
public:
// nsISupports methods
NS_DECL_ISUPPORTS
nsMsgComposeFactory(const nsCID &aClass,
const char* aClassName,
const char* aProgID,
nsISupports*);
// nsIFactory methods
NS_IMETHOD CreateInstance(nsISupports *aOuter, const nsIID &aIID, void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
protected:
virtual ~nsMsgComposeFactory();
private:
nsCID mClassID;
char* mClassName;
char* mProgID;
nsIServiceManager* mServiceManager;
};
nsMsgComposeFactory::nsMsgComposeFactory(const nsCID &aClass,
const char* aClassName,
const char* aProgID,
nsISupports *compMgrSupports)
: mClassID(aClass),
mClassName(nsCRT::strdup(aClassName)),
mProgID(nsCRT::strdup(aProgID))
{
NS_INIT_REFCNT();
// store a copy of the
compMgrSupports->QueryInterface(nsIServiceManager::GetIID(),
(void **)&mServiceManager);
}
nsMsgComposeFactory::~nsMsgComposeFactory()
{
NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
NS_IF_RELEASE(mServiceManager);
PL_strfree(mClassName);
PL_strfree(mProgID);
}
nsresult nsMsgComposeFactory::QueryInterface(const nsIID &aIID, void **aResult)
{
if (aResult == NULL)
return NS_ERROR_NULL_POINTER;
// Always NULL result, in case of failure
*aResult = NULL;
// we support two interfaces....nsISupports and nsFactory.....
if (aIID.Equals(::nsISupports::GetIID()))
*aResult = (void *)(nsISupports*)this;
else if (aIID.Equals(nsIFactory::GetIID()))
*aResult = (void *)(nsIFactory*)this;
if (*aResult == NULL)
return NS_NOINTERFACE;
AddRef(); // Increase reference count for caller
return NS_OK;
}
NS_IMPL_ADDREF(nsMsgComposeFactory)
NS_IMPL_RELEASE(nsMsgComposeFactory)
nsresult nsMsgComposeFactory::CreateInstance(nsISupports *aOuter, const nsIID &aIID, void **aResult)
{
if (aResult == NULL)
return NS_ERROR_NULL_POINTER;
*aResult = NULL;
// ClassID check happens here
// Whenever you add a new class that supports an interface, plug it in here!!!
// mscott --> I've noticed that all of the "convience" functions (NS_*) used to
// create components are adding a ref count to the returned component...then at the end of
// CreateInstance we ref count again when we query interface for the desired interface.
// That's why we need to be careful and make sure we release the first ref count before returning...
// So, if you add a component here and it doesn't ref count when you create it then you might
// have a problem....
if (mClassID.Equals(kCSmtpServiceCID))
{
nsSmtpService * smtpService = new nsSmtpService();
// okay now turn around and give inst a handle on it....
return smtpService->QueryInterface(kISupportsIID, aResult);
}
// do they want a Message Compose interface ?
else if (mClassID.Equals(kCMsgComposeCID))
{
return NS_NewMsgCompose(aIID, aResult);
}
// do they want a Message Compose Fields interface ?
else if (mClassID.Equals(kCMsgCompFieldsCID))
{
return NS_NewMsgCompFields(aIID, aResult);
}
// do they want a Message Send interface ?
else if (mClassID.Equals(kCMsgSendCID))
{
return NS_NewMsgSend(aIID, aResult);
}
// do they want a Compose AppCore interface ?
else if (mClassID.Equals(kCComposeAppCoreCID))
{
return NS_NewComposeAppCore(aIID, aResult);
}
else if (mClassID.Equals(kCComposerBootstrapCID))
{
return NS_NewComposerBootstrap(aIID, aResult, mServiceManager);
}
else if (mClassID.Equals(kCComposerCID))
{
return NS_NewComposer(aIID, aResult);
}
return NS_NOINTERFACE;
}
nsresult nsMsgComposeFactory::LockFactory(PRBool aLock)
{
if (aLock)
PR_AtomicIncrement(&g_LockCount);
else
PR_AtomicDecrement(&g_LockCount);
return NS_OK;
}
// return the proper factory to the caller.
extern "C" NS_EXPORT nsresult NSGetFactory(nsISupports* aServMgr,
const nsCID &aClass,
const char *aClassName,
const char *aProgID,
nsIFactory **aFactory)
{
if (nsnull == aFactory)
return NS_ERROR_NULL_POINTER;
*aFactory = new nsMsgComposeFactory(aClass, aClassName, aProgID, aServMgr);
if (aFactory)
return (*aFactory)->QueryInterface(nsIFactory::GetIID(),
(void**)aFactory);
else
return NS_ERROR_OUT_OF_MEMORY;
}
extern "C" NS_EXPORT PRBool NSCanUnload(nsISupports* aServMgr)
{
return PRBool(g_InstanceCount == 0 && g_LockCount == 0);
}
extern "C" NS_EXPORT nsresult NSRegisterSelf(nsISupports* aServMgr, const char* path)
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
if (NS_FAILED(rv)) return rv;
nsIComponentManager* compMgr;
rv = servMgr->GetService(kComponentManagerCID,
nsIComponentManager::GetIID(),
(nsISupports**)&compMgr);
if (NS_FAILED(rv)) return rv;
// register the message compose factory
rv = compMgr->RegisterComponent(kCSmtpServiceCID,
"SMTP Service", nsnull,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
rv = compMgr->RegisterComponent(kCMsgCompFieldsCID,
"Compose Fields",
nsnull, path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
rv = compMgr->RegisterComponent(kCMsgSendCID,
"Message Send",
nsnull, path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
rv = compMgr->RegisterComponent(kCMsgComposeCID,
"Message Compose",
nsnull,
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
rv = compMgr->RegisterComponent(kCComposerCID,
"Message Composer",
"component://netscape/composer/application",
path, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
rv = compMgr->RegisterComponent(kCComposerBootstrapCID,
"Netscape Composer Bootstrapper",
"component://netscape/composer",
path,
PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
rv = compMgr->RegisterComponent(kCComposeAppCoreCID,
"Composer AppCore",
"component://netscape/appcores/composer",
path,
PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) goto done;
#ifdef NS_DEBUG
printf("composer registering from %s\n",path);
#endif
done:
(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
return rv;
}
extern "C" NS_EXPORT nsresult
NSUnregisterSelf(nsISupports* aServMgr, const char* path)
{
nsresult rv;
nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
if (NS_FAILED(rv)) return rv;
nsIComponentManager* compMgr;
rv = servMgr->GetService(kComponentManagerCID,
nsIComponentManager::GetIID(),
(nsISupports**)&compMgr);
if (NS_FAILED(rv)) return rv;
rv = compMgr->UnregisterComponent(kCComposeAppCoreCID, path);
if (NS_FAILED(rv)) goto done;
rv = compMgr->UnregisterComponent(kCComposerBootstrapCID, path);
if (NS_FAILED(rv)) goto done;
rv = compMgr->UnregisterComponent(kCComposerCID, path);
if (NS_FAILED(rv)) goto done;
rv = compMgr->UnregisterComponent(kCMsgComposeCID, path);
if (NS_FAILED(rv)) goto done;
rv = compMgr->UnregisterComponent(kCMsgSendCID, path);
if (NS_FAILED(rv)) goto done;
rv = compMgr->UnregisterComponent(kCMsgCompFieldsCID, path);
if (NS_FAILED(rv)) goto done;
rv = compMgr->UnregisterComponent(kCSmtpServiceCID, path);
if (NS_FAILED(rv)) goto done;
done:
(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
return rv;
}