зеркало из https://github.com/mozilla/pjs.git
add new file for nsIMoudle work, r=kipp
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ftang%netscape.com
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Коммит
cf7e66906b
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@ -0,0 +1,309 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsCOMPtr.h"
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#include "nsIModule.h"
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#include "nsIGenericFactory.h"
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#include "nsUnicharUtilCIID.h"
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#include "nsCaseConversionImp2.h"
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#include "nsHankakuToZenkakuCID.h"
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#include "nsTextTransformFactory.h"
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#include "nsICaseConversion.h"
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#include "nsEntityConverter.h"
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#include "nsUUDll.h"
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PRInt32 g_InstanceCount = 0;
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PRInt32 g_LockCount = 0;
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static NS_DEFINE_CID(kUnicharUtilCID, NS_UNICHARUTIL_CID);
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static NS_DEFINE_CID(kHankakuToZenkakuCID, NS_HANKAKUTOZENKAKU_CID);
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static NS_DEFINE_CID(kEntityConverterCID, NS_ENTITYCONVERTER_CID);
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// Module implementation
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class nsUcharUtilModule : public nsIModule
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{
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public:
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nsUcharUtilModule();
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virtual ~nsUcharUtilModule();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIMODULE
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protected:
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nsresult Initialize();
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void Shutdown();
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PRBool mInitialized;
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nsCOMPtr<nsIGenericFactory> mHankakuToZenkakuFactory;
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nsCOMPtr<nsIGenericFactory> mUnicharUtilFactory;
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nsCOMPtr<nsIGenericFactory> mEntityConverterFactory;
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};
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//----------------------------------------------------------------------
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// Functions used to create new instances of a given object by the
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// generic factory.
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#define MAKE_CTOR(_name) \
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static NS_IMETHODIMP \
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CreateNew##_name(nsISupports* aOuter, REFNSIID aIID, void **aResult) \
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{ \
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if (!aResult) { \
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return NS_ERROR_INVALID_POINTER; \
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} \
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if (aOuter) { \
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*aResult = nsnull; \
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return NS_ERROR_NO_AGGREGATION; \
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} \
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nsISupports* inst; \
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nsresult rv = NS_New##_name(&inst); \
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if (NS_FAILED(rv)) { \
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*aResult = nsnull; \
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return rv; \
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} \
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rv = inst->QueryInterface(aIID, aResult); \
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if (NS_FAILED(rv)) { \
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*aResult = nsnull; \
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} \
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NS_RELEASE(inst); /* get rid of extra refcnt */ \
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return rv; \
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}
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MAKE_CTOR(CaseConversion)
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MAKE_CTOR(HankakuToZenkaku)
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MAKE_CTOR(EntityConverter)
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//----------------------------------------------------------------------
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static NS_DEFINE_IID(kIModuleIID, NS_IMODULE_IID);
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nsUcharUtilModule::nsUcharUtilModule()
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: mInitialized(PR_FALSE)
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{
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NS_INIT_ISUPPORTS();
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}
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nsUcharUtilModule::~nsUcharUtilModule()
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{
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Shutdown();
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}
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NS_IMPL_ISUPPORTS(nsUcharUtilModule, kIModuleIID)
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// Perform our one-time intialization for this module
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nsresult
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nsUcharUtilModule::Initialize()
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{
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if (mInitialized) {
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return NS_OK;
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}
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mInitialized = PR_TRUE;
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return NS_OK;
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}
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// Shutdown this module, releasing all of the module resources
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void
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nsUcharUtilModule::Shutdown()
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{
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// Release the factory object
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mHankakuToZenkakuFactory = nsnull;
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mUnicharUtilFactory = nsnull;
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mEntityConverterFactory = nsnull;
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}
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// Create a factory object for creating instances of aClass.
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NS_IMETHODIMP
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nsUcharUtilModule::GetClassObject(nsIComponentManager *aCompMgr,
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const nsCID& aClass,
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const nsIID& aIID,
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void** r_classObj)
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{
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nsresult rv;
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// Defensive programming: Initialize *r_classObj in case of error below
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if (!r_classObj) {
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return NS_ERROR_INVALID_POINTER;
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}
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*r_classObj = NULL;
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// Do one-time-only initialization if necessary
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if (!mInitialized) {
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rv = Initialize();
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if (NS_FAILED(rv)) {
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// Initialization failed! yikes!
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return rv;
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}
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}
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// Choose the appropriate factory, based on the desired instance
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// class type (aClass).
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nsCOMPtr<nsIGenericFactory> fact;
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if (aClass.Equals(kUnicharUtilCID)) {
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if (!mUnicharUtilFactory) {
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rv = NS_NewGenericFactory(getter_AddRefs(mUnicharUtilFactory),
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CreateNewCaseConversion);
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}
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fact = mUnicharUtilFactory;
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}
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else
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if (aClass.Equals(kEntityConverterCID)) {
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if (!mEntityConverterFactory) {
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rv = NS_NewGenericFactory(getter_AddRefs(mEntityConverterFactory),
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CreateNewEntityConverter);
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}
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fact = mEntityConverterFactory;
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}
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else
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if (aClass.Equals(kHankakuToZenkakuCID)) {
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if(!mHankakuToZenkakuFactory) {
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rv = NS_NewGenericFactory(getter_AddRefs(mHankakuToZenkakuFactory),
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CreateNewHankakuToZenkaku);
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}
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fact = mHankakuToZenkakuFactory;
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}
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else {
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rv = NS_ERROR_FACTORY_NOT_REGISTERED;
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#ifdef DEBUG
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char* cs = aClass.ToString();
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printf("+++ nsUcharUtilModule: unable to create factory for %s\n", cs);
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nsCRT::free(cs);
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#endif
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}
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if (fact) {
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rv = fact->QueryInterface(aIID, r_classObj);
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}
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return rv;
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}
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//----------------------------------------
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struct Components {
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const char* mDescription;
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const nsID* mCID;
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const char* mProgID;
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};
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// The list of components we register
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static Components gComponents[] = {
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{ "Unichar Utility", &kUnicharUtilCID,
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NS_UNICHARUTIL_PROGID, },
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{ "Unicode To Entity Converter", &kEntityConverterCID,
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NS_ENTITYCONVERTER_PROGID, },
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{ "Japanese Hankaku To Zenkaku", &kHankakuToZenkakuCID,
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NS_HANKAKUTOZENKAKU_PROGID, },
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};
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#define NUM_COMPONENTS (sizeof(gComponents) / sizeof(gComponents[0]))
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NS_IMETHODIMP
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nsUcharUtilModule::RegisterSelf(nsIComponentManager *aCompMgr,
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nsIFileSpec* aPath,
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const char* registryLocation,
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const char* componentType)
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{
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nsresult rv = NS_OK;
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#ifdef DEBUG
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printf("*** Registering UcharUtil components\n");
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#endif
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Components* cp = gComponents;
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Components* end = cp + NUM_COMPONENTS;
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while (cp < end) {
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rv = aCompMgr->RegisterComponentSpec(*cp->mCID, cp->mDescription,
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cp->mProgID, aPath, PR_TRUE,
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PR_TRUE);
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if (NS_FAILED(rv)) {
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#ifdef DEBUG
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printf("nsUcharUtilModule: unable to register %s component => %x\n",
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cp->mDescription, rv);
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#endif
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break;
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}
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cp++;
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}
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return rv;
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}
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NS_IMETHODIMP
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nsUcharUtilModule::UnregisterSelf(nsIComponentManager* aCompMgr,
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nsIFileSpec* aPath,
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const char* registryLocation)
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{
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#ifdef DEBUG
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printf("*** Unregistering UcharUtil components\n");
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#endif
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Components* cp = gComponents;
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Components* end = cp + NUM_COMPONENTS;
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while (cp < end) {
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nsresult rv = aCompMgr->UnregisterComponentSpec(*cp->mCID, aPath);
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if (NS_FAILED(rv)) {
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#ifdef DEBUG
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printf("nsUcharUtilModule: unable to unregister %s component => %x\n",
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cp->mDescription, rv);
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#endif
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}
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cp++;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsUcharUtilModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
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{
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if (!okToUnload) {
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return NS_ERROR_INVALID_POINTER;
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}
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*okToUnload = (g_InstanceCount == 0) && (g_LockCount == 0);
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return NS_OK;
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}
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//----------------------------------------------------------------------
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static nsUcharUtilModule *gModule = NULL;
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extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager *servMgr,
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nsIFileSpec* location,
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nsIModule** return_cobj)
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{
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nsresult rv = NS_OK;
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NS_ASSERTION(return_cobj, "Null argument");
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NS_ASSERTION(gModule == NULL, "nsUcharUtilModule: Module already created.");
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// Create and initialize the module instance
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nsUcharUtilModule *m = new nsUcharUtilModule();
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if (!m) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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// Increase refcnt and store away nsIModule interface to m in return_cobj
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rv = m->QueryInterface(NS_GET_IID(nsIModule), (void**)return_cobj);
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if (NS_FAILED(rv)) {
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delete m;
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m = nsnull;
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}
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gModule = m; // WARNING: Weak Reference
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return rv;
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}
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