gecko-dev/xpcom/glue/GenericModule.cpp
Benjamin Smedberg 1feb3e5e7d Implement compatibility wrapper so that binary components can be compatible with both Firefox 3.6 and Firefox 4, as a result of registration changes from bug 568691.
--HG--
rename : xpcom/components/GenericFactory.cpp => xpcom/glue/GenericFactory.cpp
rename : xpcom/components/GenericFactory.h => xpcom/glue/GenericFactory.h
2010-06-24 16:36:27 -04:00

126 lines
4.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "mozilla/ModuleUtils.h"
#include "mozilla/GenericFactory.h"
#include "nsICategoryManager.h"
#include "nsIComponentManager.h"
#include "nsIComponentRegistrar.h"
#include "nsServiceManagerUtils.h"
#include "nsXPCOMCID.h"
#include "nsStringAPI.h"
namespace mozilla {
NS_IMPL_THREADSAFE_ISUPPORTS1(GenericModule, nsIModule)
NS_IMETHODIMP
GenericModule::GetClassObject(nsIComponentManager* aCompMgr,
const nsCID& aCID,
const nsIID& aIID,
void** aResult)
{
for (const Module::CIDEntry* e = mData->mCIDs; e->cid; ++e) {
if (e->cid->Equals(aCID)) {
nsCOMPtr<nsIFactory> f;
if (e->getFactoryProc) {
f = e->getFactoryProc(*mData, *e);
}
else {
NS_ASSERTION(e->constructorProc, "No constructor proc?");
f = new GenericFactory(e->constructorProc);
}
if (!f)
return NS_ERROR_FAILURE;
return f->QueryInterface(aIID, aResult);
}
}
NS_ERROR("Asking a module for a CID it doesn't implement.");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
GenericModule::RegisterSelf(nsIComponentManager* aCompMgr,
nsIFile* aLocation,
const char* aLoaderStr,
const char* aType)
{
nsCOMPtr<nsIComponentRegistrar> r = do_QueryInterface(aCompMgr);
for (const Module::CIDEntry* e = mData->mCIDs; e->cid; ++e)
r->RegisterFactoryLocation(*e->cid, "", NULL, aLocation, aLoaderStr, aType);
for (const Module::ContractIDEntry* e = mData->mContractIDs;
e && e->contractid;
++e)
r->RegisterFactoryLocation(*e->cid, "", e->contractid, aLocation, aLoaderStr, aType);
nsCOMPtr<nsICategoryManager> catman;
for (const Module::CategoryEntry* e = mData->mCategoryEntries;
e && e->category;
++e) {
if (!catman)
catman = do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
nsCAutoString r;
catman->AddCategoryEntry(e->category, e->entry, e->value, true, true,
getter_Copies(r));
}
return NS_OK;
}
NS_IMETHODIMP
GenericModule::UnregisterSelf(nsIComponentManager* aCompMgr,
nsIFile* aFile,
const char* aLoaderStr)
{
NS_ERROR("Nobody should ever call UnregisterSelf!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
GenericModule::CanUnload(nsIComponentManager* aCompMgr, PRBool* aResult)
{
NS_ERROR("Nobody should ever call CanUnload!");
*aResult = false;
return NS_OK;
}
} // namespace mozilla