| /************************************************************** |
| * |
| * 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 _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 |