/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the 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