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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <global.hxx>
#include "classfactory.hxx"
#include <infotips.hxx>
#include <propsheets.hxx>
#include <columninfo.hxx>
#include <thumbviewer.hxx>
#include <shlxthdl.hxx>
long CClassFactory::s_ServerLocks = 0;
CClassFactory::CClassFactory(const CLSID& clsid) :
m_RefCnt(1),
m_Clsid(clsid)
{
InterlockedIncrement(&g_DllRefCnt);
}
CClassFactory::~CClassFactory()
{
InterlockedDecrement(&g_DllRefCnt);
}
// IUnknown methods
HRESULT STDMETHODCALLTYPE CClassFactory::QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject)
{
*ppvObject = nullptr;
if (IID_IUnknown == riid || IID_IClassFactory == riid)
{
IUnknown* pUnk = this;
pUnk->AddRef();
*ppvObject = pUnk;
return S_OK;
}
return E_NOINTERFACE;
}
ULONG STDMETHODCALLTYPE CClassFactory::AddRef()
{
return InterlockedIncrement(&m_RefCnt);
}
ULONG STDMETHODCALLTYPE CClassFactory::Release()
{
long refcnt = InterlockedDecrement(&m_RefCnt);
if (0 == refcnt)
delete this;
return refcnt;
}
// IClassFactory methods
HRESULT STDMETHODCALLTYPE CClassFactory::CreateInstance(
IUnknown __RPC_FAR *pUnkOuter,
REFIID riid,
void __RPC_FAR *__RPC_FAR *ppvObject)
{
if (pUnkOuter != nullptr)
return CLASS_E_NOAGGREGATION;
IUnknown* pUnk = nullptr;
if (CLSID_PROPERTYSHEET_HANDLER == m_Clsid)
pUnk = static_cast<IShellExtInit*>(new CPropertySheet());
else if (CLSID_INFOTIP_HANDLER == m_Clsid)
pUnk = static_cast<IQueryInfo*>(new CInfoTip());
else if (CLSID_COLUMN_HANDLER == m_Clsid)
pUnk = static_cast<IColumnProvider*>(new CColumnInfo());
else if (CLSID_THUMBVIEWER_HANDLER == m_Clsid)
pUnk = static_cast<IExtractImage*>(new CThumbviewer());
if (nullptr == pUnk)
{
return E_OUTOFMEMORY;
}
HRESULT hr = pUnk->QueryInterface(riid, ppvObject);
// if QueryInterface failed the component will destroy itself
pUnk->Release();
return hr;
}
HRESULT STDMETHODCALLTYPE CClassFactory::LockServer(BOOL fLock)
{
if (fLock)
InterlockedIncrement(&s_ServerLocks);
else
InterlockedDecrement(&s_ServerLocks);
return S_OK;
}
bool CClassFactory::IsLocked()
{
return (s_ServerLocks > 0);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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