gecko-dev/editor/base/nsTextEditFactory.cpp
1999-03-09 09:44:27 +00:00

128 lines
3.5 KiB
C++

/* -*- 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://wwwt.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 "nsTextEditFactory.h"
#include "nsITextEditor.h"
#include "nsTextEditor.h"
#include "nsEditor.h"
#include "nsEditorCID.h"
#include "nsIComponentManager.h"
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_IID(kITextEditorIID, NS_ITEXTEDITOR_IID);
static NS_DEFINE_IID(kTextEditorCID, NS_TEXTEDITOR_CID);
static NS_DEFINE_IID(kITextEditFactoryIID, NS_ITEXTEDITORFACTORY_IID);
nsresult
GetTextEditFactory(nsIFactory **aFactory, const nsCID & aClass)
{
static nsCOMPtr<nsIFactory> g_pNSIFactory;
PR_EnterMonitor(getEditorMonitor());
nsresult result = NS_ERROR_FAILURE;
if (!g_pNSIFactory)
{
nsTextEditFactory *factory = new nsTextEditFactory(aClass);
g_pNSIFactory = do_QueryInterface(factory);
if (factory)
result = NS_OK;
}
result = g_pNSIFactory->QueryInterface(kIFactoryIID, (void **)aFactory);
PR_ExitMonitor(getEditorMonitor());
return result;
}
////////////////////////////////////////////////////////////////////////////
// from nsISupports
nsresult
nsTextEditFactory::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
NS_NOTREACHED("!nsEditor");
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIFactoryIID) ||
aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*) this;
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMPL_ADDREF(nsTextEditFactory)
NS_IMPL_RELEASE(nsTextEditFactory)
////////////////////////////////////////////////////////////////////////////
// from nsIFactory:
NS_IMETHODIMP
nsTextEditFactory::CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
*aResult = nsnull;
nsISupports *obj = nsnull;
if (!aResult)
return NS_ERROR_NULL_POINTER;
if (aOuter && !aIID.Equals(kISupportsIID))
return NS_NOINTERFACE; // XXX right error?
if (mCID.Equals(kTextEditorCID))
{
//Need to cast to interface first to avoid "ambiguous conversion..." error
// because of multiple nsISupports in the class hierarchy
obj = (nsISupports *)(nsITextEditor*)new nsTextEditor();
}
//more class ids to support. here
if (obj && NS_FAILED(obj->QueryInterface(aIID, (void**)aResult)) )
{
delete obj;
return NS_NOINTERFACE;
}
return NS_OK;
}
NS_IMETHODIMP
nsTextEditFactory::LockFactory(PRBool aLock)
{
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////
// from nsTextEditFactory:
nsTextEditFactory::nsTextEditFactory(const nsCID &aClass)
:mCID(aClass)
{
NS_INIT_REFCNT();
}
nsTextEditFactory::~nsTextEditFactory()
{
//nsComponentManager::UnregisterFactory(mCID, (nsIFactory *)this); //we are out of ref counts anyway
}