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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
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 * OpenOffice.org - a multi-platform office productivity suite
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 * $RCSfile: cliplistener.cxx,v $
 * $Revision: 1.7 $
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svtools.hxx"

#include <com/sun/star/datatransfer/clipboard/XClipboardNotifier.hpp>

#include <vcl/svapp.hxx>
#include <vcl/window.hxx>
#include <vos/mutex.hxx>

#include "cliplistener.hxx"
#include <svtools/transfer.hxx>

using namespace ::com::sun::star;

// -----------------------------------------------------------------------------

TransferableClipboardListener::TransferableClipboardListener( const Link& rCallback ) :
	aLink( rCallback )
{
}

TransferableClipboardListener::~TransferableClipboardListener()
{
}

void SAL_CALL TransferableClipboardListener::disposing( const lang::EventObject& )
														throw(uno::RuntimeException)
{
}

void SAL_CALL TransferableClipboardListener::changedContents(
							const datatransfer::clipboard::ClipboardEvent& rEventObject )
														throw(uno::RuntimeException)
{
	if ( aLink.IsSet() )
	{
		const ::vos::OGuard aGuard( Application::GetSolarMutex() );

		TransferableDataHelper aDataHelper( rEventObject.Contents );
		aLink.Call( &aDataHelper );
	}
}

void TransferableClipboardListener::AddRemoveListener( Window* pWin, BOOL bAdd )
{
	try
	{
		if ( pWin )
		{
			uno::Reference<datatransfer::clipboard::XClipboard> xClipboard = pWin->GetClipboard();
			uno::Reference<datatransfer::clipboard::XClipboardNotifier> xClpbrdNtfr( xClipboard, uno::UNO_QUERY );
			if( xClpbrdNtfr.is() )
			{
				uno::Reference<datatransfer::clipboard::XClipboardListener> xClipEvtLstnr( this );
				if( bAdd )
					xClpbrdNtfr->addClipboardListener( xClipEvtLstnr );
				else
					xClpbrdNtfr->removeClipboardListener( xClipEvtLstnr );
			}
		}
	}
	catch( const ::com::sun::star::uno::Exception& )
	{
	}
}

void TransferableClipboardListener::ClearCallbackLink()
{
	aLink = Link();
}

