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pjs/intl/uconv/ucvja/nsUCvJaModule.cpp

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C++
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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 1.1 (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/NPL/
*
* 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):
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#define NS_IMPL_IDS
#include "nspr.h"
#include "nsString.h"
#include "pratom.h"
#include "nsCOMPtr.h"
#include "nsIFactory.h"
#include "nsIRegistry.h"
#include "nsIServiceManager.h"
#include "nsIModule.h"
#include "nsUCVJACID.h"
#include "nsUCVJA2CID.h"
#include "nsUCVJADll.h"
#include "nsJapaneseToUnicode.h"
#include "nsSJIS2Unicode.h" // To Be Obsoleted
#include "nsUnicodeToSJIS.h"
#include "nsEUCJPToUnicode.h" // To Be Obsoleted
#include "nsISO2022JPToUnicode.h" // To Be Obsoleted
#include "nsUnicodeToEUCJP.h"
#include "nsUnicodeToISO2022JP.h"
#include "nsUnicodeToJISx0201.h"
#include "nsUnicodeToJISx0208.h"
#include "nsUnicodeToJISx0212.h"
//----------------------------------------------------------------------------
// Global functions and data [declaration]
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
#define DECODER_NAME_BASE "Unicode Decoder-"
#define ENCODER_NAME_BASE "Unicode Encoder-"
PRInt32 g_InstanceCount = 0;
PRInt32 g_LockCount = 0;
// To Be Obsoleted
PRUint16 g_ut0201Mapping[] = {
#include "jis0201.ut"
};
PRUint16 g_ut0208Mapping[] = {
#include "jis0208.ut"
};
PRUint16 g_ut0212Mapping[] = {
#include "jis0212.ut"
};
// End of To Be Obsoleted
PRUint16 g_uf0201Mapping[] = {
#include "jis0201.uf"
};
PRUint16 g_uf0208Mapping[] = {
#include "jis0208.uf"
};
PRUint16 g_uf0212Mapping[] = {
#include "jis0212.uf"
};
typedef nsresult (* fpCreateInstance) (nsISupports **);
struct FactoryData
{
const nsCID * mCID;
fpCreateInstance CreateInstance;
char * mCharsetSrc;
char * mCharsetDest;
};
static FactoryData g_FactoryData[] =
{
{
&kSJIS2UnicodeCID,
NEW_ShiftJISToUnicode,
"Shift_JIS",
"Unicode"
},
{ // To Be Obsoleted
&kObsSJISToUnicodeCID,
nsSJIS2Unicode::CreateInstance,
"x-obsoleted-Shift_JIS",
"Unicode"
},// To Be Obsoleted
{
&kUnicodeToSJISCID,
nsUnicodeToSJIS::CreateInstance,
"Unicode",
"Shift_JIS"
},
{
&kISO2022JPToUnicodeCID,
NEW_ISO2022JPToUnicode,
"ISO-2022-JP",
"Unicode"
},
{
&kEUCJPToUnicodeCID,
NEW_EUCJPToUnicode,
"EUC-JP",
"Unicode"
},
{// To Be Obsoleted
&kObsISO2022JPToUnicodeCID,
nsISO2022JPToUnicode::CreateInstance,
"x-obsoleted-ISO-2022-JP",
"Unicode"
},// To Be Obsoleted
{ // To Be Obsoleted
&kObsEUCJPToUnicodeCID,
nsEUCJPToUnicode::CreateInstance,
"x-obsoleted-EUC-JP",
"Unicode"
},// To Be Obsoleted
{
&kUnicodeToEUCJPCID,
nsUnicodeToEUCJP::CreateInstance,
"Unicode",
"EUC-JP"
},
{
&kUnicodeToJISx0201CID,
nsUnicodeToJISx0201::CreateInstance,
"Unicode",
"jis_0201"
},
{
&kUnicodeToJISx0208CID,
nsUnicodeToJISx0208::CreateInstance,
"Unicode",
"jis_0208-1983"
},
{
&kUnicodeToJISx0212CID,
nsUnicodeToJISx0212::CreateInstance,
"Unicode",
"jis_0212-1990"
},
{
&kUnicodeToISO2022JPCID,
nsUnicodeToISO2022JP::CreateInstance,
"Unicode",
"ISO-2022-JP"
}
};
#define ARRAY_SIZE(_array) \
(sizeof(_array) / sizeof(_array[0]))
//----------------------------------------------------------------------------
// Class nsConverterFactory [declaration]
/**
* General factory class for converter objects.
*
* @created 24/Feb/1998
* @author Catalin Rotaru [CATA]
*/
class nsConverterFactory : public nsIFactory
{
NS_DECL_ISUPPORTS
private:
FactoryData * mData;
public:
/**
* Class constructor.
*/
nsConverterFactory(FactoryData * aData);
/**
* Class destructor.
*/
virtual ~nsConverterFactory();
//--------------------------------------------------------------------------
// Interface nsIFactory [declaration]
NS_IMETHOD CreateInstance(nsISupports *aDelegate, const nsIID &aIID,
void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
};
//----------------------------------------------------------------------------
// Class nsConverterModule [declaration]
class nsConverterModule : public nsIModule
{
NS_DECL_ISUPPORTS
NS_DECL_NSIMODULE
private:
PRBool mInitialized;
void Shutdown();
public:
nsConverterModule();
virtual ~nsConverterModule();
nsresult Initialize();
};
//----------------------------------------------------------------------------
// Global functions and data [implementation]
static nsConverterModule * gModule = NULL;
extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager * compMgr,
nsIFile* location,
nsIModule** return_cobj)
{
nsresult rv = NS_OK;
NS_ENSURE_ARG_POINTER(return_cobj);
NS_ENSURE_FALSE(gModule, NS_ERROR_FAILURE);
// Create an initialize the module instance
nsConverterModule * m = new nsConverterModule();
if (!m) {
return NS_ERROR_OUT_OF_MEMORY;
}
// Increase refcnt and store away nsIModule interface to m in return_cobj
rv = m->QueryInterface(NS_GET_IID(nsIModule), (void**)return_cobj);
if (NS_FAILED(rv)) {
delete m;
m = nsnull;
}
gModule = m; // WARNING: Weak Reference
return rv;
}
//----------------------------------------------------------------------------
// Class nsConverterFactory [implementation]
NS_IMPL_ISUPPORTS(nsConverterFactory, NS_GET_IID(nsIFactory));
nsConverterFactory::nsConverterFactory(FactoryData * aData)
{
mData = aData;
NS_INIT_REFCNT();
PR_AtomicIncrement(&g_InstanceCount);
}
nsConverterFactory::~nsConverterFactory()
{
PR_AtomicDecrement(&g_InstanceCount);
}
//----------------------------------------------------------------------------
// Interface nsIFactory [implementation]
NS_IMETHODIMP nsConverterFactory::CreateInstance(nsISupports *aDelegate,
const nsIID &aIID,
void **aResult)
{
if (aResult == NULL) return NS_ERROR_NULL_POINTER;
if (aDelegate != NULL) return NS_ERROR_NO_AGGREGATION;
nsISupports * t;
mData->CreateInstance(&t);
if (t == NULL) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(t); // Stabilize
nsresult res = t->QueryInterface(aIID, aResult);
NS_RELEASE(t); // Destabilize and avoid leaks. Avoid calling delete <interface pointer>
return res;
}
NS_IMETHODIMP nsConverterFactory::LockFactory(PRBool aLock)
{
if (aLock) PR_AtomicIncrement(&g_LockCount);
else PR_AtomicDecrement(&g_LockCount);
return NS_OK;
}
//----------------------------------------------------------------------------
// Class nsConverterModule [implementation]
NS_IMPL_ISUPPORTS(nsConverterModule, NS_GET_IID(nsIModule))
nsConverterModule::nsConverterModule()
: mInitialized(PR_FALSE)
{
NS_INIT_ISUPPORTS();
}
nsConverterModule::~nsConverterModule()
{
Shutdown();
}
nsresult nsConverterModule::Initialize()
{
return NS_OK;
}
void nsConverterModule::Shutdown()
{
}
//----------------------------------------------------------------------------
// Interface nsIModule [implementation]
NS_IMETHODIMP nsConverterModule::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;
if (!mInitialized) {
rv = Initialize();
if (NS_FAILED(rv)) {
return rv;
}
mInitialized = PR_TRUE;
}
FactoryData * data;
nsConverterFactory * fact;
// XXX cache these factories
for (PRUint32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
data = &(g_FactoryData[i]);
if (aClass.Equals(*(data->mCID))) {
fact = new nsConverterFactory(data);
if (fact == NULL) {
return NS_ERROR_OUT_OF_MEMORY;
}
rv = fact->QueryInterface(aIID, (void **) r_classObj);
if (NS_FAILED(rv)) delete fact;
return rv;
}
}
return NS_ERROR_FACTORY_NOT_REGISTERED;
}
NS_IMETHODIMP nsConverterModule::RegisterSelf(nsIComponentManager *aCompMgr,
nsIFile* aPath,
const char* registryLocation,
const char* componentType)
{
nsresult res;
PRUint32 i;
nsIRegistry * registry = NULL;
nsRegistryKey key;
char buff[1024];
// get the registry
res = nsServiceManager::GetService(NS_REGISTRY_PROGID,
NS_GET_IID(nsIRegistry), (nsISupports**)&registry);
if (NS_FAILED(res)) goto done;
// open the registry
res = registry->OpenWellKnownRegistry(
nsIRegistry::ApplicationComponentRegistry);
if (NS_FAILED(res)) goto done;
char name[128];
char progid[128];
char * cid_string;
for (i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
if(0==PL_strcmp(g_FactoryData[i].mCharsetSrc,"Unicode"))
{
PL_strcpy(name, ENCODER_NAME_BASE);
PL_strcat(name, g_FactoryData[i].mCharsetDest);
PL_strcpy(progid, NS_UNICODEENCODER_PROGID_BASE);
PL_strcat(progid, g_FactoryData[i].mCharsetDest);
} else {
PL_strcpy(name, DECODER_NAME_BASE);
PL_strcat(name, g_FactoryData[i].mCharsetSrc);
PL_strcpy(progid, NS_UNICODEDECODER_PROGID_BASE);
PL_strcat(progid, g_FactoryData[i].mCharsetSrc);
}
// register component
res = aCompMgr->RegisterComponentSpec(*(g_FactoryData[i].mCID), name,
progid, aPath, PR_TRUE, PR_TRUE);
if(NS_FAILED(res) && (NS_ERROR_FACTORY_EXISTS != res)) goto done;
// register component info
// XXX take these KONSTANTS out of here; refine this code
cid_string = g_FactoryData[i].mCID->ToString();
sprintf(buff, "%s/%s", "software/netscape/intl/uconv", cid_string);
nsCRT::free(cid_string);
res = registry -> AddSubtree(nsIRegistry::Common, buff, &key);
if (NS_FAILED(res)) goto done;
res = registry -> SetStringUTF8(key, "source", g_FactoryData[i].mCharsetSrc);
if (NS_FAILED(res)) goto done;
res = registry -> SetStringUTF8(key, "destination", g_FactoryData[i].mCharsetDest);
if (NS_FAILED(res)) goto done;
}
done:
if (registry != NULL) {
nsServiceManager::ReleaseService(NS_REGISTRY_PROGID, registry);
}
return res;
}
NS_IMETHODIMP nsConverterModule::UnregisterSelf(nsIComponentManager *aCompMgr,
nsIFile* aPath,
const char* registryLocation)
{
// XXX also delete the stuff I added to the registry
nsresult rv;
for (PRUint32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
rv = aCompMgr->UnregisterComponentSpec(*(g_FactoryData[i].mCID), aPath);
}
return NS_OK;
}
NS_IMETHODIMP nsConverterModule::CanUnload(nsIComponentManager *aCompMgr,
PRBool *okToUnload)
{
if (!okToUnload) {
return NS_ERROR_INVALID_POINTER;
}
*okToUnload = (g_InstanceCount == 0 && g_LockCount == 0);
return NS_OK;
}
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