/* -*- 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 .

 */

#pragma once

#include <sal/config.h>

#include <atomic>

#include <cstddef>

#include <rtl/ustring.hxx>

#include <sal/types.h>

#include <typelib/typedescription.h>

#include <uno/dispatcher.h>

#include <uno/environment.h>

#include "vtablefactory.hxx"

namespace com::sun::star::uno { class XInterface; }

namespace bridges::cpp_uno::shared {

class Bridge;

extern "C" void freeCppInterfaceProxy(

    uno_ExtEnvironment * pEnv, void * pInterface);

/**

 * A cpp proxy wrapping a uno interface.

 */

class CppInterfaceProxy {

public:

    // Interface for Bridge:

    static css::uno::XInterface * create(

        Bridge * pBridge, uno_Interface * pUnoI,

        typelib_InterfaceTypeDescription * pTypeDescr,

        OUString const & rOId);

    // Interface for individual CPP--UNO bridges:

    Bridge * getBridge() { return pBridge; }

    uno_Interface * getUnoI() { return pUnoI; }

    typelib_InterfaceTypeDescription * getTypeDescr() { return pTypeDescr; }

    const OUString& getOid() const { return oid; }

    // non virtual methods called on incoming vtable calls #1, #2

    void acquireProxy();

    void releaseProxy();

    static CppInterfaceProxy * castInterfaceToProxy(void * pInterface);

private:

    CppInterfaceProxy(CppInterfaceProxy const &) = delete;

    CppInterfaceProxy& operator =(const CppInterfaceProxy&) = delete;

    CppInterfaceProxy(

        Bridge * pBridge_, uno_Interface * pUnoI_,

        typelib_InterfaceTypeDescription * pTypeDescr_,

        OUString aOId_);

    ~CppInterfaceProxy();

    static css::uno::XInterface * castProxyToInterface(

        CppInterfaceProxy * pProxy);

    std::atomic<std::size_t> nRef;

    Bridge * pBridge;

    // mapping information

    uno_Interface * pUnoI; // wrapped interface

    typelib_InterfaceTypeDescription * pTypeDescr;

    OUString oid;

    VtableFactory::Slot * vtables[1] = {};

    friend void freeCppInterfaceProxy(

        uno_ExtEnvironment * pEnv, void * pInterface);

};

}

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