/* -*- 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 <sfx2/toolbarids.hxx>

namespace sd

{

typedef ToolbarId ShellId;

template <class ShellType> class ShellFactory

{

public:

    /** This abstract virtual class needs a destructor so that the

        destructors of derived classes are called.

    */

    virtual ~ShellFactory(){};

    /** Create a new instance of a view shell for the given id that will

        be stacked onto the given view shell base.

        @return

            Return the new view shell or NULL when a creation is not

            possible.

        */

    virtual ShellType* CreateShell(ShellId nId) = 0;

    /** Tell the factory that a shell is no longer in use.  It may destroy

        it or put it for future use in a cache.

    */

    virtual void ReleaseShell(ShellType* pShell) = 0;

};

} // end of namespace sd

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