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path: root/dtrans/source/win32/clipb/WinClipbImpl.hxx
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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: WinClipbImpl.hxx,v $
 * $Revision: 1.12 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/


#ifndef _WINCLIPBIMPL_HXX_
#define _WINCLIPBIMPL_HXX_

//------------------------------------------------------------------------
// includes
//------------------------------------------------------------------------

#include <sal/types.h>
#include <rtl/ustring.hxx>
#include <com/sun/star/datatransfer/XTransferable.hpp>
#include <com/sun/star/datatransfer/clipboard/XClipboardListener.hpp>
#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
#include "..\..\inc\MtaOleClipb.hxx"

#if defined _MSC_VER
#pragma warning(push,1)
#endif
#include <windows.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif

class CWinClipboard;
class CXNotifyingDataObject;

//---------------------------------------------------
// impl class to avoid deadlocks between XTDataObject
// and the clipboard implementation
//---------------------------------------------------

class CWinClipbImpl
{
public:
    ~CWinClipbImpl( );

protected:
    CWinClipbImpl( const ::rtl::OUString& aClipboardName, CWinClipboard* theWinClipboard );

    ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable > SAL_CALL getContents(  )
        throw( ::com::sun::star::uno::RuntimeException );

    void SAL_CALL setContents(
        const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& xTransferable,
        const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboardOwner >& xClipboardOwner )
        throw( ::com::sun::star::uno::RuntimeException );

    ::rtl::OUString SAL_CALL getName(  ) throw( ::com::sun::star::uno::RuntimeException );

    //------------------------------------------------
    // XClipboardEx
    //------------------------------------------------

    sal_Int8 SAL_CALL getRenderingCapabilities(  ) throw( ::com::sun::star::uno::RuntimeException );

    //------------------------------------------------
    // XFlushableClipboard
    //------------------------------------------------

    void SAL_CALL flushClipboard( ) throw( com::sun::star::uno::RuntimeException );

    //------------------------------------------------
    // XComponent
    //------------------------------------------------

    void SAL_CALL dispose( ) throw( ::com::sun::star::uno::RuntimeException );

    //------------------------------------------------
    // member functions
    //------------------------------------------------

    void SAL_CALL registerClipboardViewer( );
    void SAL_CALL unregisterClipboardViewer( );

    static void WINAPI onClipboardContentChanged( void );

private:
    void SAL_CALL onReleaseDataObject( CXNotifyingDataObject* theCaller );

private:
    ::rtl::OUString         m_itsName;
    CMtaOleClipboard        m_MtaOleClipboard;
    CWinClipboard*          m_pWinClipboard;
    CXNotifyingDataObject*  m_pCurrentClipContent;
    osl::Mutex              m_ClipContentMutex;

    static osl::Mutex       s_aMutex;
    static CWinClipbImpl*   s_pCWinClipbImpl;

private:
    CWinClipbImpl( const CWinClipbImpl& );
    CWinClipbImpl& operator=( const CWinClipbImpl& );

    friend class CWinClipboard;
    friend class CXNotifyingDataObject;
};

#endif