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/*************************************************************************
*
* $RCSfile: MtaOleClipb.hxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: tra $ $Date: 2001-03-15 10:11:35 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRUNTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRUNTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc..
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _MTAOLECLIPB_HXX_
#define _MTAOLECLIPB_HXX_
#ifndef _SAL_TYPES_H_
#include <sal/types.h>
#endif
//#include <windows.h>
#include <objidl.h>
//--------------------------------------------------------
// the Mta-Ole clipboard class is for internal use only!
// only one instance of this class should be created, the
// user has to ensure this!
// the class is not thread-safe because it will be used
// only from within the clipboard service and the methods
// of the clipboard service are already synchronized
//--------------------------------------------------------
class CMtaOleClipboard
{
public:
typedef void ( WINAPI *LPFNC_CLIPVIEWER_CALLBACK_t )( void );
public:
CMtaOleClipboard( );
~CMtaOleClipboard( );
// clipboard functions
HRESULT setClipboard( IDataObject* pIDataObject );
HRESULT getClipboard( IDataObject** ppIDataObject );
HRESULT flushClipboard( );
// register/unregister a clipboard viewer; there can only
// be one at a time; parameter NULL means unregister
// a clipboard viewer
// returns true on success else false; use GetLastError( ) in
// false case
sal_Bool registerClipViewer( LPFNC_CLIPVIEWER_CALLBACK_t pfncClipViewerCallback );
private:
unsigned int run( );
// create a hidden windows which serves as an request
// target; so we guarantee synchronization
void createMtaOleReqWnd( );
// message support
sal_Bool postMessage( UINT msg, WPARAM wParam = 0, LPARAM lParam = 0 );
LRESULT sendMessage( UINT msg, WPARAM wParam = 0, LPARAM lParam = 0 );
//---------------------------------------------------------------
// message handler functions; remeber these functions are called
// from a different thread context!
//---------------------------------------------------------------
LRESULT onSetClipboard( IDataObject* pIDataObject );
LRESULT onGetClipboard( LPSTREAM* ppStream );
LRESULT onFlushClipboard( );
sal_Bool onRegisterClipViewer( LPFNC_CLIPVIEWER_CALLBACK_t pfncClipViewerCallback );
// win32 clipboard-viewer support
LRESULT onChangeCBChain( HWND hWndRemove, HWND hWndNext );
LRESULT onDrawClipboard( );
static LRESULT CALLBACK mtaOleReqWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
static unsigned int WINAPI oleThreadProc( LPVOID pParam );
sal_Bool WaitForThreadReady( ) const;
sal_Bool WaitOpComplete( ) const;
private:
HANDLE m_hOleThread;
unsigned m_uOleThreadId;
HANDLE m_hEvtThrdReady;
HANDLE m_hEvtOpComplete;
//HANDLE m_hEvtWmDrawClipboardReady;
HWND m_hwndMtaOleReqWnd;
HWND m_hwndNextClipViewer;
LPFNC_CLIPVIEWER_CALLBACK_t m_pfncClipViewerCallback;
sal_Bool m_bInRegisterClipViewer;
sal_Bool m_bInCallbackTriggerOperation;
static CMtaOleClipboard* s_theMtaOleClipboardInst;
// not allowed
private:
CMtaOleClipboard( const CMtaOleClipboard& );
CMtaOleClipboard& operator=( const CMtaOleClipboard& );
};
#endif
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