зеркало из https://github.com/mozilla/pjs.git
Updated to use nsIModule
This commit is contained in:
tonyr%fbdesigns.com
Родитель
baf31d9d08
Коммит
8395f7ab64
|
|
@ -15,200 +15,267 @@
|
|||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
||||
* Reserved.
|
||||
*/
|
||||
|
||||
/*
|
||||
|
||||
A sample of XPConnect. This file contains the XPCOM factory the
|
||||
creates for SampleImpl objects.
|
||||
|
||||
*/
|
||||
|
||||
#include "nsCOMPtr.h"
|
||||
#include "nscore.h"
|
||||
#include "nsIComponentManager.h"
|
||||
#include "nsIServiceManager.h"
|
||||
#include "nsXPComFactory.h"
|
||||
#include "nsIModule.h"
|
||||
#include "nsIGenericFactory.h"
|
||||
#include "nsIImportService.h"
|
||||
|
||||
#include "ImportDebug.h"
|
||||
|
||||
|
||||
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
|
||||
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
|
||||
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
|
||||
static NS_DEFINE_CID(kImportServiceCID, NS_IMPORTSERVICE_CID);
|
||||
|
||||
|
||||
extern nsresult NS_NewImportService(nsIImportService** aImportService);
|
||||
|
||||
class ImportFactoryImpl : public nsIFactory
|
||||
// Module implementation for the import service library
|
||||
class nsImportServiceModule : public nsIModule
|
||||
{
|
||||
public:
|
||||
ImportFactoryImpl(const nsCID &aClass, const char* className, const char* progID);
|
||||
nsImportServiceModule();
|
||||
virtual ~nsImportServiceModule();
|
||||
|
||||
// nsISupports methods
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
// nsIFactory methods
|
||||
NS_IMETHOD CreateInstance(nsISupports *aOuter,
|
||||
const nsIID &aIID,
|
||||
void **aResult);
|
||||
|
||||
NS_IMETHOD LockFactory(PRBool aLock);
|
||||
NS_DECL_NSIMODULE
|
||||
|
||||
protected:
|
||||
virtual ~ImportFactoryImpl();
|
||||
nsresult Initialize();
|
||||
|
||||
protected:
|
||||
nsCID mClassID;
|
||||
const char* mClassName;
|
||||
const char* mProgID;
|
||||
void Shutdown();
|
||||
|
||||
PRBool mInitialized;
|
||||
nsCOMPtr<nsIGenericFactory> mFactory;
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
//----------------------------------------------------------------------
|
||||
|
||||
ImportFactoryImpl::ImportFactoryImpl(const nsCID &aClass,
|
||||
const char* className,
|
||||
const char* progID)
|
||||
: mClassID(aClass), mClassName(className), mProgID(progID)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
// Functions used to create new instances of a given object by the
|
||||
// generic factory.
|
||||
|
||||
#define MAKE_CTOR(_name) \
|
||||
static NS_IMETHODIMP \
|
||||
CreateNew##_name(nsISupports* aOuter, REFNSIID aIID, void **aResult) \
|
||||
{ \
|
||||
if (!aResult) { \
|
||||
return NS_ERROR_INVALID_POINTER; \
|
||||
} \
|
||||
if (aOuter) { \
|
||||
*aResult = nsnull; \
|
||||
return NS_ERROR_NO_AGGREGATION; \
|
||||
} \
|
||||
nsI##_name* inst; \
|
||||
nsresult rv = NS_New##_name(&inst); \
|
||||
if (NS_FAILED(rv)) { \
|
||||
*aResult = nsnull; \
|
||||
return rv; \
|
||||
} \
|
||||
rv = inst->QueryInterface(aIID, aResult); \
|
||||
if (NS_FAILED(rv)) { \
|
||||
*aResult = nsnull; \
|
||||
} \
|
||||
NS_RELEASE(inst); /* get rid of extra refcnt */ \
|
||||
return rv; \
|
||||
}
|
||||
|
||||
ImportFactoryImpl::~ImportFactoryImpl()
|
||||
MAKE_CTOR(ImportService)
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
|
||||
static NS_DEFINE_IID(kIModuleIID, NS_IMODULE_IID);
|
||||
|
||||
nsImportServiceModule::nsImportServiceModule()
|
||||
: mInitialized(PR_FALSE)
|
||||
{
|
||||
NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
|
||||
NS_INIT_ISUPPORTS();
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
ImportFactoryImpl::QueryInterface(const nsIID &aIID, void **aResult)
|
||||
nsImportServiceModule::~nsImportServiceModule()
|
||||
{
|
||||
if (! aResult)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
Shutdown();
|
||||
}
|
||||
|
||||
// Always NULL result, in case of failure
|
||||
*aResult = nsnull;
|
||||
NS_IMPL_ISUPPORTS(nsImportServiceModule, kIModuleIID)
|
||||
|
||||
if (aIID.Equals(kISupportsIID)) {
|
||||
*aResult = NS_STATIC_CAST(nsISupports*, this);
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
} else if (aIID.Equals(kIFactoryIID)) {
|
||||
*aResult = NS_STATIC_CAST(nsIFactory*, this);
|
||||
AddRef();
|
||||
// Perform our one-time intialization for this module
|
||||
nsresult
|
||||
nsImportServiceModule::Initialize()
|
||||
{
|
||||
if (mInitialized) {
|
||||
return NS_OK;
|
||||
}
|
||||
return NS_NOINTERFACE;
|
||||
mInitialized = PR_TRUE;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMPL_ADDREF(ImportFactoryImpl);
|
||||
NS_IMPL_RELEASE(ImportFactoryImpl);
|
||||
|
||||
NS_IMETHODIMP
|
||||
ImportFactoryImpl::CreateInstance(nsISupports *aOuter,
|
||||
const nsIID &aIID,
|
||||
void **aResult)
|
||||
// Shutdown this module, releasing all of the module resources
|
||||
void
|
||||
nsImportServiceModule::Shutdown()
|
||||
{
|
||||
if (! aResult)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
|
||||
if (aOuter)
|
||||
return NS_ERROR_NO_AGGREGATION;
|
||||
|
||||
*aResult = nsnull;
|
||||
// Release the factory object
|
||||
mFactory = nsnull;
|
||||
}
|
||||
|
||||
// Create a factory object for creating instances of aClass.
|
||||
NS_IMETHODIMP
|
||||
nsImportServiceModule::GetClassObject(nsIComponentManager *aCompMgr,
|
||||
const nsCID& aClass,
|
||||
const nsIID& aIID,
|
||||
void** r_classObj)
|
||||
{
|
||||
nsresult rv;
|
||||
|
||||
nsISupports *inst = nsnull;
|
||||
if (mClassID.Equals( kImportServiceCID)) {
|
||||
if (NS_FAILED(rv = NS_NewImportService((nsIImportService**) &inst)))
|
||||
// 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(kImportServiceCID)) {
|
||||
if (!mFactory) {
|
||||
// Create and save away the factory object for creating
|
||||
// new instances of Sample. This way if we are called
|
||||
// again for the factory, we won't need to create a new
|
||||
// one.
|
||||
rv = NS_NewGenericFactory(getter_AddRefs(mFactory),
|
||||
CreateNewImportService);
|
||||
}
|
||||
fact = mFactory;
|
||||
}
|
||||
else {
|
||||
return NS_ERROR_NO_INTERFACE;
|
||||
rv = NS_ERROR_FACTORY_NOT_REGISTERED;
|
||||
#ifdef DEBUG
|
||||
char* cs = aClass.ToString();
|
||||
printf("+++ nsImportServiceModule: unable to create factory for %s\n", cs);
|
||||
nsCRT::free(cs);
|
||||
#endif
|
||||
}
|
||||
|
||||
if (! inst)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
|
||||
if (NS_FAILED(rv = inst->QueryInterface(aIID, aResult))) {
|
||||
// We didn't get the right interface.
|
||||
NS_ERROR("didn't support the interface you wanted");
|
||||
if (fact) {
|
||||
rv = fact->QueryInterface(aIID, r_classObj);
|
||||
}
|
||||
|
||||
NS_IF_RELEASE(inst);
|
||||
return rv;
|
||||
}
|
||||
|
||||
nsresult ImportFactoryImpl::LockFactory(PRBool aLock)
|
||||
//----------------------------------------
|
||||
|
||||
struct Components {
|
||||
const char* mDescription;
|
||||
const nsID* mCID;
|
||||
const char* mProgID;
|
||||
};
|
||||
|
||||
// The list of components we register
|
||||
static Components gComponents[] = {
|
||||
{ "Import Service Component", &kImportServiceCID,
|
||||
"component://mozilla/import/import-service", },
|
||||
};
|
||||
#define NUM_COMPONENTS (sizeof(gComponents) / sizeof(gComponents[0]))
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsImportServiceModule::RegisterSelf(nsIComponentManager *aCompMgr,
|
||||
nsIFileSpec* aPath,
|
||||
const char* registryLocation,
|
||||
const char* componentType)
|
||||
{
|
||||
// Not implemented in simplest case.
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
#ifdef DEBUG
|
||||
printf("*** Registering ImportService components\n");
|
||||
#endif
|
||||
|
||||
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)) {
|
||||
#ifdef DEBUG
|
||||
printf("nsImportServiceModule: unable to register %s component => %x\n",
|
||||
cp->mDescription, rv);
|
||||
#endif
|
||||
break;
|
||||
}
|
||||
cp++;
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsImportServiceModule::UnregisterSelf(nsIComponentManager* aCompMgr,
|
||||
nsIFileSpec* aPath,
|
||||
const char* registryLocation)
|
||||
{
|
||||
#ifdef DEBUG
|
||||
printf("*** Unregistering ImportService components\n");
|
||||
#endif
|
||||
Components* cp = gComponents;
|
||||
Components* end = cp + NUM_COMPONENTS;
|
||||
while (cp < end) {
|
||||
nsresult rv = aCompMgr->UnregisterComponentSpec(*cp->mCID, aPath);
|
||||
if (NS_FAILED(rv)) {
|
||||
#ifdef DEBUG
|
||||
printf("nsImportServiceModule: unable to unregister %s component => %x\n",
|
||||
cp->mDescription, rv);
|
||||
#endif
|
||||
}
|
||||
cp++;
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
|
||||
// return the proper factory to the caller
|
||||
extern "C" PR_IMPLEMENT(nsresult)
|
||||
NSGetFactory(nsISupports* aServMgr,
|
||||
const nsCID &aClass,
|
||||
const char *aClassName,
|
||||
const char *aProgID,
|
||||
nsIFactory **aFactory)
|
||||
NS_IMETHODIMP
|
||||
nsImportServiceModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
|
||||
{
|
||||
if (! aFactory)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
if (!okToUnload) {
|
||||
return NS_ERROR_INVALID_POINTER;
|
||||
}
|
||||
*okToUnload = PR_FALSE;
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
ImportFactoryImpl* factory = new ImportFactoryImpl(aClass, aClassName, aProgID);
|
||||
if (factory == nsnull)
|
||||
//----------------------------------------------------------------------
|
||||
|
||||
static nsImportServiceModule *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, "nsImportServiceModule: Module already created.");
|
||||
|
||||
// Create an initialize the layout module instance
|
||||
nsImportServiceModule *m = new nsImportServiceModule();
|
||||
if (!m) {
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
|
||||
NS_ADDREF(factory);
|
||||
*aFactory = factory;
|
||||
return NS_OK;
|
||||
// Increase refcnt and store away nsIModule interface to m in return_cobj
|
||||
rv = m->QueryInterface(nsIModule::GetIID(), (void**)return_cobj);
|
||||
if (NS_FAILED(rv)) {
|
||||
delete m;
|
||||
m = nsnull;
|
||||
}
|
||||
gModule = m; // WARNING: Weak Reference
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
extern "C" PR_IMPLEMENT(nsresult)
|
||||
NSRegisterSelf(nsISupports* aServMgr , const char* aPath)
|
||||
{
|
||||
nsresult rv;
|
||||
|
||||
nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
NS_WITH_SERVICE1(nsIComponentManager, compMgr, servMgr, kComponentManagerCID, &rv);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
rv = compMgr->RegisterComponent(kImportServiceCID,
|
||||
"Import Service",
|
||||
"component://netscape/import/import-service",
|
||||
aPath, PR_TRUE, PR_TRUE);
|
||||
|
||||
IMPORT_LOG0( "*** Import Service registered.\n");
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
extern "C" PR_IMPLEMENT(nsresult)
|
||||
NSUnregisterSelf(nsISupports* aServMgr, const char* aPath)
|
||||
{
|
||||
nsresult rv;
|
||||
|
||||
nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
servMgr->UnregisterService( "component://netscape/import/import-service");
|
||||
|
||||
NS_WITH_SERVICE1(nsIComponentManager, compMgr, servMgr, kComponentManagerCID, &rv);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
rv = compMgr->UnregisterComponent(kImportServiceCID, aPath);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче