pjs/mailnews/imap/build/nsImapFactory.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" // for pre-compiled headers...
#include "nsCOMPtr.h"
#include "nsIModule.h"
#include "nsIGenericFactory.h"
#include "nsIMAPHostSessionList.h"
#include "nsImapIncomingServer.h"
#include "nsImapService.h"
#include "nsImapMailFolder.h"
#include "nsImapMessage.h"
#include "nsImapUrl.h"
#include "nsImapProtocol.h"
#include "nsMsgImapCID.h"
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
static NS_DEFINE_CID(kCImapUrl, NS_IMAPURL_CID);
static NS_DEFINE_CID(kCImapProtocol, NS_IMAPPROTOCOL_CID);
static NS_DEFINE_CID(kCImapHostSessionList, NS_IIMAPHOSTSESSIONLIST_CID);
static NS_DEFINE_CID(kCImapIncomingServer, NS_IMAPINCOMINGSERVER_CID);
static NS_DEFINE_CID(kCImapService, NS_IMAPSERVICE_CID);
static NS_DEFINE_CID(kCImapResource, NS_IMAPRESOURCE_CID);
static NS_DEFINE_CID(kCImapMessageResource, NS_IMAPMESSAGERESOURCE_CID);
static NS_DEFINE_CID(kCImapMockChannel, NS_IMAPMOCKCHANNEL_CID);
// private factory declarations for each component we know how to produce
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapUrl)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapProtocol)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsIMAPHostSessionList)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapIncomingServer)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapService)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapMailFolder)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapMockChannel)
NS_GENERIC_FACTORY_CONSTRUCTOR(nsImapMessage)
// Module implementation for the sample library
class nsMsgImapModule : public nsIModule
{
public:
nsMsgImapModule();
virtual ~nsMsgImapModule();
NS_DECL_ISUPPORTS
NS_DECL_NSIMODULE
protected:
nsresult Initialize();
void Shutdown();
PRBool mInitialized;
nsCOMPtr<nsIGenericFactory> mImapUrlFactory;
nsCOMPtr<nsIGenericFactory> mImapProtocolFactory;
nsCOMPtr<nsIGenericFactory> mImapHostSessionFactory;
nsCOMPtr<nsIGenericFactory> mImapIncomingServerFactory;
nsCOMPtr<nsIGenericFactory> mImapServiceFactory;
nsCOMPtr<nsIGenericFactory> mImapMailFolderFactory;
nsCOMPtr<nsIGenericFactory> mImapMockChannelFactory;
nsCOMPtr<nsIGenericFactory> mImapMessageFactory;
};
nsMsgImapModule::nsMsgImapModule()
: mInitialized(PR_FALSE)
{
NS_INIT_ISUPPORTS();
}
nsMsgImapModule::~nsMsgImapModule()
{
Shutdown();
}
NS_IMPL_ISUPPORTS(nsMsgImapModule, NS_GET_IID(nsIModule))
// Perform our one-time intialization for this module
nsresult nsMsgImapModule::Initialize()
{
if (mInitialized)
return NS_OK;
mInitialized = PR_TRUE;
return NS_OK;
}
// Shutdown this module, releasing all of the module resources
void nsMsgImapModule::Shutdown()
{
// Release the factory object
mImapUrlFactory = null_nsCOMPtr();
mImapProtocolFactory = null_nsCOMPtr();
mImapHostSessionFactory = null_nsCOMPtr();
mImapIncomingServerFactory = null_nsCOMPtr();
mImapServiceFactory = null_nsCOMPtr();
mImapMailFolderFactory = null_nsCOMPtr();
mImapMockChannelFactory = null_nsCOMPtr();
mImapMessageFactory = null_nsCOMPtr();
}
// Create a factory object for creating instances of aClass.
NS_IMETHODIMP nsMsgImapModule::GetClassObject(nsIComponentManager *aCompMgr,
const nsCID& aClass,
const nsIID& aIID,
void** r_classObj)
{
nsresult rv;
// Defensive programming: Initialize *r_classObj in case of error below
if (!r_classObj)
return NS_ERROR_INVALID_POINTER;
*r_classObj = NULL;
// Do one-time-only initialization if necessary
if (!mInitialized)
{
rv = Initialize();
if (NS_FAILED(rv)) // Initialization failed! yikes!
return rv;
}
// Choose the appropriate factory, based on the desired instance
// class type (aClass).
nsCOMPtr<nsIGenericFactory> fact;
if (aClass.Equals(kCImapUrl))
{
if (!mImapUrlFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapUrlFactory), &nsImapUrlConstructor);
fact = mImapUrlFactory;
}
else if (aClass.Equals(kCImapProtocol))
{
if (!mImapProtocolFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapProtocolFactory), &nsImapProtocolConstructor);
fact = mImapProtocolFactory;
}
else if (aClass.Equals(kCImapHostSessionList))
{
if (!mImapHostSessionFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapHostSessionFactory), &nsIMAPHostSessionListConstructor);
fact = mImapHostSessionFactory;
}
else if (aClass.Equals(kCImapIncomingServer))
{
if (!mImapIncomingServerFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapIncomingServerFactory), &nsImapIncomingServerConstructor);
fact = mImapIncomingServerFactory;
}
else if (aClass.Equals(kCImapService))
{
if (!mImapServiceFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapServiceFactory), &nsImapServiceConstructor);
fact = mImapServiceFactory;
}
else if (aClass.Equals(kCImapResource))
{
if (!mImapMailFolderFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapMailFolderFactory), &nsImapMailFolderConstructor);
fact = mImapMailFolderFactory;
}
else if (aClass.Equals(kCImapMockChannel))
{
if (!mImapMockChannelFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapMockChannelFactory), &nsImapMockChannelConstructor);
fact = mImapMockChannelFactory;
}
else if (aClass.Equals(kCImapMessageResource))
{
if (!mImapMessageFactory)
rv = NS_NewGenericFactory(getter_AddRefs(mImapMessageFactory), &nsImapMessageConstructor);
fact = mImapMessageFactory;
}
if (fact)
rv = fact->QueryInterface(aIID, r_classObj);
return rv;
}
struct Components {
const char* mDescription;
const nsID* mCID;
const char* mProgID;
};
// The list of components we register
static Components gComponents[] = {
{ "Imap Url", &kCImapUrl,
nsnull },
{ "Imap Protocol Channel", &kCImapProtocol,
nsnull },
{ "Imap Mock Channel", &kCImapMockChannel,
nsnull },
{ "Imap Host Session List", &kCImapHostSessionList,
nsnull },
{ "Imap Incoming Server", &kCImapIncomingServer,
"component://netscape/messenger/server&type=imap" },
{ "Mail/News Imap Resource Factory", &kCImapResource,
NS_RDF_RESOURCE_FACTORY_PROGID_PREFIX "imap" },
{ "Imap Service", &kCImapService,
"component://netscape/messenger/messageservice;type=imap_message" },
{ "Imap Service", &kCImapService,
"component://netscape/messenger/messageservice;type=imap"},
{ "Imap Protocol Handler", &kCImapService,
NS_NETWORK_PROTOCOL_PROGID_PREFIX "imap"},
{ "Imap Protocol Handler", &kCImapService,
NS_IMAPPROTOCOLINFO_PROGID},
{ "Imap Message Resource Factory", &kCImapMessageResource,
NS_RDF_RESOURCE_FACTORY_PROGID_PREFIX "imap_message"}
};
#define NUM_COMPONENTS (sizeof(gComponents) / sizeof(gComponents[0]))
NS_IMETHODIMP nsMsgImapModule::RegisterSelf(nsIComponentManager *aCompMgr,
nsIFileSpec* aPath,
const char* registryLocation,
const char* componentType)
{
nsresult rv = NS_OK;
Components* cp = gComponents;
Components* end = cp + NUM_COMPONENTS;
while (cp < end)
{
rv = aCompMgr->RegisterComponentSpec(*cp->mCID, cp->mDescription,
cp->mProgID, aPath, PR_TRUE,
PR_TRUE);
if (NS_FAILED(rv))
break;
cp++;
}
return rv;
}
NS_IMETHODIMP nsMsgImapModule::UnregisterSelf(nsIComponentManager* aCompMgr,
nsIFileSpec* aPath,
const char* registryLocation)
{
Components* cp = gComponents;
Components* end = cp + NUM_COMPONENTS;
while (cp < end)
{
aCompMgr->UnregisterComponentSpec(*cp->mCID, aPath);
cp++;
}
return NS_OK;
}
NS_IMETHODIMP nsMsgImapModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
{
if (!okToUnload)
return NS_ERROR_INVALID_POINTER;
*okToUnload = PR_FALSE;
return NS_ERROR_FAILURE;
}
//----------------------------------------------------------------------
static nsMsgImapModule *gModule = NULL;
extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager *servMgr,
nsIFileSpec* location,
nsIModule** return_cobj)
{
nsresult rv = NS_OK;
NS_ASSERTION(return_cobj, "Null argument");
NS_ASSERTION(gModule == NULL, "nsMsgImapModule: Module already created.");
// Create an initialize the imap module instance
nsMsgImapModule *module = new nsMsgImapModule();
if (!module)
return NS_ERROR_OUT_OF_MEMORY;
// Increase refcnt and store away nsIModule interface to m in return_cobj
rv = module->QueryInterface(nsIModule::GetIID(), (void**)return_cobj);
if (NS_FAILED(rv))
{
delete module;
module = nsnull;
}
gModule = module; // WARNING: Weak Reference
return rv;
}