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Diffstat (limited to 'dtrans/source/inc/MtaOleClipb.hxx')
-rw-r--r-- | dtrans/source/inc/MtaOleClipb.hxx | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/dtrans/source/inc/MtaOleClipb.hxx b/dtrans/source/inc/MtaOleClipb.hxx new file mode 100644 index 000000000000..03facb73d18f --- /dev/null +++ b/dtrans/source/inc/MtaOleClipb.hxx @@ -0,0 +1,134 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * 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 _MTAOLECLIPB_HXX_ +#define _MTAOLECLIPB_HXX_ + +#include <sal/types.h> +#include <osl/mutex.hxx> + +#if defined _MSC_VER +#pragma warning(push,1) +#endif +#include <objidl.h> +#if defined _MSC_VER +#pragma warning(pop) +#endif + +//-------------------------------------------------------- +// 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 ); + + static unsigned int WINAPI clipboardChangedNotifierThreadProc( LPVOID pParam ); + + sal_Bool WaitForThreadReady( ) const; + +private: + HANDLE m_hOleThread; + unsigned m_uOleThreadId; + HANDLE m_hEvtThrdReady; + HWND m_hwndMtaOleReqWnd; + ATOM m_MtaOleReqWndClassAtom; + HWND m_hwndNextClipViewer; + LPFNC_CLIPVIEWER_CALLBACK_t m_pfncClipViewerCallback; + sal_Bool m_bInRegisterClipViewer; + + sal_Bool m_bRunClipboardNotifierThread; + HANDLE m_hClipboardChangedNotifierThread; + HANDLE m_hClipboardChangedNotifierEvents[2]; + HANDLE& m_hClipboardChangedEvent; + HANDLE& m_hTerminateClipboardChangedNotifierEvent; + osl::Mutex m_ClipboardChangedEventCountMutex; + sal_Int32 m_ClipboardChangedEventCount; + + osl::Mutex m_pfncClipViewerCallbackMutex; + + static CMtaOleClipboard* s_theMtaOleClipboardInst; + +// not allowed +private: + CMtaOleClipboard( const CMtaOleClipboard& ); + CMtaOleClipboard& operator=( const CMtaOleClipboard& ); + + friend LRESULT CALLBACK mtaOleReqWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); +}; + +#endif |