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gecko-dev/rdf/build/nsRDFFactory.cpp

264 строки
8.7 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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.
*/
/*
The RDF factory implementation.
*/
#include "nsIFactory.h"
#include "nsIRDFCompositeDataSource.h"
#include "nsIRDFContentModelBuilder.h"
#include "nsIRDFContentSink.h"
#include "nsIRDFDocument.h"
#include "nsIRDFService.h"
#include "nsIRDFXMLDataSource.h"
#include "nsIXULContentSink.h"
#include "nsISupports.h"
#include "nsRDFBaseDataSources.h"
#include "nsRDFBuiltInDataSources.h"
#include "nsRDFCID.h"
#include "nsRepository.h"
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_CID(kRDFBookmarkDataSourceCID, NS_RDFBOOKMARKDATASOURCE_CID);
static NS_DEFINE_CID(kRDFCompositeDataSourceCID, NS_RDFCOMPOSITEDATASOURCE_CID);
static NS_DEFINE_CID(kRDFContentSinkCID, NS_RDFCONTENTSINK_CID);
static NS_DEFINE_CID(kRDFHTMLBuilderCID, NS_RDFHTMLBUILDER_CID);
static NS_DEFINE_CID(kRDFInMemoryDataSourceCID, NS_RDFINMEMORYDATASOURCE_CID);
static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
static NS_DEFINE_CID(kRDFTreeBuilderCID, NS_RDFTREEBUILDER_CID);
static NS_DEFINE_CID(kRDFXMLDataSourceCID, NS_RDFXMLDATASOURCE_CID);
static NS_DEFINE_CID(kRDFXULBuilderCID, NS_RDFXULBUILDER_CID);
static NS_DEFINE_CID(kXULContentSinkCID, NS_XULCONTENTSINK_CID);
static NS_DEFINE_CID(kXULDataSourceCID, NS_XULDATASOURCE_CID);
static NS_DEFINE_CID(kXULDocumentCID, NS_XULDOCUMENT_CID);
class RDFFactoryImpl : public nsIFactory
{
public:
RDFFactoryImpl(const nsCID &aClass);
// nsISupports methods
NS_DECL_ISUPPORTS
// nsIFactory methods
NS_IMETHOD CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
protected:
virtual ~RDFFactoryImpl();
private:
nsCID mClassID;
};
////////////////////////////////////////////////////////////////////////
RDFFactoryImpl::RDFFactoryImpl(const nsCID &aClass)
{
NS_INIT_REFCNT();
mClassID = aClass;
}
RDFFactoryImpl::~RDFFactoryImpl()
{
NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
}
NS_IMETHODIMP
RDFFactoryImpl::QueryInterface(const nsIID &aIID,
void **aResult)
{
if (! aResult)
return NS_ERROR_NULL_POINTER;
// Always NULL result, in case of failure
*aResult = nsnull;
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();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMPL_ADDREF(RDFFactoryImpl);
NS_IMPL_RELEASE(RDFFactoryImpl);
NS_IMETHODIMP
RDFFactoryImpl::CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult)
{
if (! aResult)
return NS_ERROR_NULL_POINTER;
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
*aResult = nsnull;
nsresult rv;
PRBool wasRefCounted = PR_TRUE;
nsISupports *inst = nsnull;
if (mClassID.Equals(kRDFServiceCID)) {
if (NS_FAILED(rv = NS_NewRDFService((nsIRDFService**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFInMemoryDataSourceCID)) {
if (NS_FAILED(rv = NS_NewRDFInMemoryDataSource((nsIRDFDataSource**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFXMLDataSourceCID)) {
if (NS_FAILED(rv = NS_NewRDFXMLDataSource((nsIRDFXMLDataSource**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFBookmarkDataSourceCID)) {
if (NS_FAILED(rv = NS_NewRDFBookmarkDataSource((nsIRDFDataSource**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFCompositeDataSourceCID)) {
if (NS_FAILED(rv = NS_NewRDFCompositeDataSource((nsIRDFCompositeDataSource**) &inst)))
return rv;
}
else if (mClassID.Equals(kXULDocumentCID)) {
if (NS_FAILED(rv = NS_NewXULDocument((nsIRDFDocument**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFHTMLBuilderCID)) {
if (NS_FAILED(rv = NS_NewRDFHTMLBuilder((nsIRDFContentModelBuilder**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFTreeBuilderCID)) {
if (NS_FAILED(rv = NS_NewRDFTreeBuilder((nsIRDFContentModelBuilder**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFXULBuilderCID)) {
if (NS_FAILED(rv = NS_NewRDFXULBuilder((nsIRDFContentModelBuilder**) &inst)))
return rv;
}
else if (mClassID.Equals(kRDFContentSinkCID)) {
if (NS_FAILED(rv = NS_NewRDFContentSink((nsIRDFContentSink**) &inst)))
return rv;
}
else if (mClassID.Equals(kXULDataSourceCID)) {
if (NS_FAILED(rv = NS_NewXULDataSource((nsIRDFXMLDataSource**) &inst)))
return rv;
}
else if (mClassID.Equals(kXULContentSinkCID)) {
if (NS_FAILED(rv = NS_NewXULContentSink((nsIXULContentSink**) &inst)))
return rv;
}
else {
return NS_ERROR_NO_INTERFACE;
}
if (! inst)
return NS_ERROR_OUT_OF_MEMORY;
if (NS_FAILED(rv = inst->QueryInterface(aIID, aResult)))
// We didn't get the right interface, so clean up
delete inst;
if (wasRefCounted)
NS_IF_RELEASE(inst);
return rv;
}
nsresult RDFFactoryImpl::LockFactory(PRBool aLock)
{
// Not implemented in simplest case.
return NS_OK;
}
////////////////////////////////////////////////////////////////////////
// return the proper factory to the caller
extern "C" PR_IMPLEMENT(nsresult)
NSGetFactory(const nsCID &aClass, nsISupports* aServiceManager, nsIFactory **aFactory)
{
if (! aFactory)
return NS_ERROR_NULL_POINTER;
RDFFactoryImpl* factory = new RDFFactoryImpl(aClass);
if (factory == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(factory);
*aFactory = factory;
return NS_OK;
}
extern "C" PR_IMPLEMENT(nsresult)
NSRegisterSelf(const char* aPath)
{
nsRepository::RegisterFactory(kRDFBookmarkDataSourceCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFCompositeDataSourceCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFContentSinkCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFHTMLBuilderCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFInMemoryDataSourceCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFServiceCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFTreeBuilderCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFXMLDataSourceCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kRDFXULBuilderCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kXULContentSinkCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kXULDataSourceCID, aPath, PR_TRUE, PR_TRUE);
nsRepository::RegisterFactory(kXULDocumentCID, aPath, PR_TRUE, PR_TRUE);
return NS_OK;
}
extern "C" PR_IMPLEMENT(nsresult)
NSUnregisterSelf(const char* aPath)
{
nsRepository::UnregisterFactory(kRDFBookmarkDataSourceCID, aPath);
nsRepository::UnregisterFactory(kRDFCompositeDataSourceCID, aPath);
nsRepository::UnregisterFactory(kRDFContentSinkCID, aPath);
nsRepository::UnregisterFactory(kRDFHTMLBuilderCID, aPath);
nsRepository::UnregisterFactory(kRDFInMemoryDataSourceCID, aPath);
nsRepository::UnregisterFactory(kRDFServiceCID, aPath);
nsRepository::UnregisterFactory(kRDFTreeBuilderCID, aPath);
nsRepository::UnregisterFactory(kRDFXMLDataSourceCID, aPath);
nsRepository::UnregisterFactory(kRDFXULBuilderCID, aPath);
nsRepository::UnregisterFactory(kXULContentSinkCID, aPath);
nsRepository::UnregisterFactory(kXULDataSourceCID, aPath);
nsRepository::UnregisterFactory(kXULDocumentCID, aPath);
return NS_OK;
}
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