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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 .
 */

#ifndef INCLUDED_EXTENSIONS_SOURCE_OLE_SERVPROV_HXX
#define INCLUDED_EXTENSIONS_SOURCE_OLE_SERVPROV_HXX

#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <cppuhelper/implbase.hxx>

#include "ole2uno.hxx"
#include "unoconversionutilities.hxx"

using namespace com::sun::star::bridge;
using namespace cppu;
using namespace std;

namespace ole_adapter
{
/// @throws Exception
Reference< XInterface> SAL_CALL ConverterProvider_CreateInstance2(  const Reference<XMultiServiceFactory> & xSMgr);
/// @throws Exception
Reference< XInterface> SAL_CALL ConverterProvider_CreateInstanceVar1(   const Reference<XMultiServiceFactory> & xSMgr);
/// @throws Exception
Reference<XInterface> SAL_CALL OleClient_CreateInstance( const Reference<XMultiServiceFactory> & xSMgr);
/// @throws Exception
Reference<XInterface> SAL_CALL OleServer_CreateInstance( const Reference<XMultiServiceFactory> & xSMgr);
/*****************************************************************************

    class declaration IClassFactoryWrapper

    Specify abstract helper methods on class factories, which provide
    UNO objects. These methods are used by objects of class OleServer_Impl,
    to handle the OLE registration of different class factories.

*****************************************************************************/

class IClassFactoryWrapper : public IClassFactory
{
public:

    virtual bool registerClass() = 0;
    virtual bool deregisterClass() = 0;

protected:
    ~IClassFactoryWrapper() {}
};

/*****************************************************************************

    class declaration ProviderOleWrapper_Impl

    Provides an UNO service provider as OLE class factory. Handle the
    OLE registration by overriding the abstract methods from
    IClassFactoryWrapper.

    Acts as a COM class factory. When IClassFactory::CreateInstance is being called
    then it creates an service by help of the XSingleServiceFactory member and maps
    maps it to a COM object.

*****************************************************************************/

class ProviderOleWrapper_Impl : public IClassFactoryWrapper
{
public:

    ProviderOleWrapper_Impl( const Reference<XMultiServiceFactory>& smgr,
                             const Reference<XSingleServiceFactory>& xSFactory, GUID const * pGuid);
    virtual ~ProviderOleWrapper_Impl();

    bool registerClass() override;
    bool deregisterClass() override;

    /* IUnknown methods */
    STDMETHOD(QueryInterface)(REFIID riid, LPVOID FAR * ppvObj) override;
    STDMETHOD_(ULONG, AddRef)() override;
    STDMETHOD_(ULONG, Release)() override;

    /* IClassFactory methods */
    STDMETHOD(CreateInstance)(IUnknown FAR* punkOuter, REFIID riid, void FAR* FAR* ppv) override;
    STDMETHOD(LockServer)(int fLock) override;

protected:

    oslInterlockedCount m_refCount;
    Reference<XSingleServiceFactory> m_xSingleServiceFactory;
    GUID                m_guid;
    DWORD               m_factoryHandle;
    Reference<XBridgeSupplier2> m_bridgeSupplier;
    Reference<XMultiServiceFactory> m_smgr;
};

/*****************************************************************************

    class declaration OneInstanceOleWrapper_Impl

    Provides an single UNO object as OLE object. Handle the
    OLE registration by overriding the abstract methods from
    IClassFactoryWrapper.

      Acts as a COM class factory. When IClassFactory::CreateInstance is being called
    then it maps the XInstance member it to a COM object.

*****************************************************************************/

class OneInstanceOleWrapper_Impl : public IClassFactoryWrapper
{
public:

    OneInstanceOleWrapper_Impl( const Reference<XMultiServiceFactory>& smgr, const Reference<XInterface>& xInst, GUID const * pGuid );
    virtual ~OneInstanceOleWrapper_Impl();

    bool registerClass() override;
    bool deregisterClass() override;

    /* IUnknown methods */
    STDMETHOD(QueryInterface)(REFIID riid, LPVOID FAR * ppvObj) override;
    STDMETHOD_(ULONG, AddRef)() override;
    STDMETHOD_(ULONG, Release)() override;

    /* IClassFactory methods */
    STDMETHOD(CreateInstance)(IUnknown FAR* punkOuter, REFIID riid, void FAR* FAR* ppv) override;
    STDMETHOD(LockServer)(int fLock) override;

protected:

    oslInterlockedCount m_refCount;
    Reference<XInterface>       m_xInst;
    GUID                m_guid;
    DWORD               m_factoryHandle;
    Reference<XBridgeSupplier2> m_bridgeSupplier;
    Reference<XMultiServiceFactory> m_smgr;
};

/*****************************************************************************

    class declaration OleConverter_Impl2

    Implementation of the UNO service com.sun.star.bridge.OleBridgeSupplier2.

*****************************************************************************/

// This class realizes the service com.sun.star.bridge.OleBridgeSupplier2 and
// com.sun.star.bridge.OleBridgeSupplierVar1. The class implements XBridgeSupplier2
// instead of XBridgeSuppplier as done by class OleConverter_Impl. The XBridgeSupplier2
// interface does not need a Maschine Id in its createBridge function anymore,
// If an UNO interface is to be converted then the member m_nUnoWrapperClass determines
// what wrapper class is to be used. There are currently InterfaceOleWrapper_Impl and
// UnoObjectWrapperRemoteOpt. The first is used for the OleBridgeSupplier2 and the
// latter for OleBridgeSupplierVar1.
// The m_nComWrapperClass specifies the class which is used as wrapper for COM interfaces.
// Currently there is only one class available ( IUnknownWrapper_Impl).
class OleConverter_Impl2 : public WeakImplHelper<XBridgeSupplier2, XInitialization, css::lang::XServiceInfo>,
                            public UnoConversionUtilities<OleConverter_Impl2>
{
public:
    explicit OleConverter_Impl2( const Reference<XMultiServiceFactory>& smgr);
    OleConverter_Impl2( const  Reference<XMultiServiceFactory>& smgr, sal_uInt8 unoWrapperClass, sal_uInt8 comWrapperClass );
    virtual ~OleConverter_Impl2() override;

    // XBridgeSupplier2 ---------------------------------------------------

    Any SAL_CALL createBridge(const Any& modelDepObject,
                                const Sequence<sal_Int8>& ProcessId,
                                sal_Int16 sourceModelType,
                                sal_Int16 destModelType) override;

    // XInitialization
    void SAL_CALL initialize( const Sequence< Any >& aArguments ) override;

    OUString SAL_CALL getImplementationName() override;

    sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override;

    css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;

    // Abstract struct UnoConversionUtilities
    Reference< XInterface > createUnoWrapperInstance() override;
    Reference< XInterface > createComWrapperInstance() override;
protected:

};


/*****************************************************************************

    class declaration OleClient_Impl

    Implementation of the UNO service com.sun.star.bridge.OleObjectFactory.

*****************************************************************************/


class OleClient_Impl : public WeakImplHelper<XMultiServiceFactory, css::lang::XServiceInfo>,
                       public UnoConversionUtilities<OleClient_Impl>
{
public:
    explicit OleClient_Impl( const Reference<XMultiServiceFactory>& smgr);
    ~OleClient_Impl() override;

    // XMultiServiceFactory
    Reference<XInterface> SAL_CALL createInstance(const OUString& ServiceSpecifier) override;
    Reference<XInterface> SAL_CALL createInstanceWithArguments(const OUString& ServiceSpecifier, const Sequence< Any >& Arguments) override;
    Sequence< OUString >    SAL_CALL getAvailableServiceNames() override;

    OUString SAL_CALL getImplementationName() override;

    sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override;

    css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;

    // Abstract struct UnoConversionUtilities
    Reference< XInterface > createUnoWrapperInstance() override;
    Reference< XInterface > createComWrapperInstance() override;

protected:
    Reference<XBridgeSupplier2> m_bridgeSupplier;
};

/*****************************************************************************

    class declaration OleServer_Impl

    Implementation of the UNO service com.sun.star.bridge.OleApplicationRegistration.
    Register the calling application as OLE automation server for
    standard OLE object. The objects will be registered while instantiating
    this implementation and deregistered, if this implementation is destroyed.

*****************************************************************************/

class OleServer_Impl : public cppu::WeakImplHelper<css::lang::XServiceInfo>
{
public:
    explicit OleServer_Impl( const Reference<XMultiServiceFactory> &smgr);
    ~OleServer_Impl() override;

    OUString SAL_CALL getImplementationName() override;

    sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override;

    css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;

protected:

    bool provideService(const Reference<XSingleServiceFactory>& xMulFact, GUID const * guid);
    bool provideInstance(const Reference<XInterface>& xInst, GUID const * guid);

    list< IClassFactoryWrapper* > m_wrapperList;
    Reference< XBridgeSupplier2 >   m_bridgeSupplier;

    Reference<XMultiServiceFactory> m_smgr;
};

} // end namespace
#endif

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