1*fbcf0fe9SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*fbcf0fe9SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*fbcf0fe9SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*fbcf0fe9SAndrew Rist * distributed with this work for additional information 6*fbcf0fe9SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*fbcf0fe9SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*fbcf0fe9SAndrew Rist * "License"); you may not use this file except in compliance 9*fbcf0fe9SAndrew Rist * with the License. You may obtain a copy of the License at 10*fbcf0fe9SAndrew Rist * 11*fbcf0fe9SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*fbcf0fe9SAndrew Rist * 13*fbcf0fe9SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*fbcf0fe9SAndrew Rist * software distributed under the License is distributed on an 15*fbcf0fe9SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*fbcf0fe9SAndrew Rist * KIND, either express or implied. See the License for the 17*fbcf0fe9SAndrew Rist * specific language governing permissions and limitations 18*fbcf0fe9SAndrew Rist * under the License. 19*fbcf0fe9SAndrew Rist * 20*fbcf0fe9SAndrew Rist *************************************************************/ 21*fbcf0fe9SAndrew Rist 22*fbcf0fe9SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef _MTAOLECLIPB_HXX_ 25cdf0e10cSrcweir #define _MTAOLECLIPB_HXX_ 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <sal/types.h> 28cdf0e10cSrcweir #include <osl/mutex.hxx> 29cdf0e10cSrcweir 30cdf0e10cSrcweir #if defined _MSC_VER 31cdf0e10cSrcweir #pragma warning(push,1) 32cdf0e10cSrcweir #endif 33cdf0e10cSrcweir #include <objidl.h> 34cdf0e10cSrcweir #if defined _MSC_VER 35cdf0e10cSrcweir #pragma warning(pop) 36cdf0e10cSrcweir #endif 37cdf0e10cSrcweir 38cdf0e10cSrcweir //-------------------------------------------------------- 39cdf0e10cSrcweir // the Mta-Ole clipboard class is for internal use only! 40cdf0e10cSrcweir // only one instance of this class should be created, the 41cdf0e10cSrcweir // user has to ensure this! 42cdf0e10cSrcweir // the class is not thread-safe because it will be used 43cdf0e10cSrcweir // only from within the clipboard service and the methods 44cdf0e10cSrcweir // of the clipboard service are already synchronized 45cdf0e10cSrcweir //-------------------------------------------------------- 46cdf0e10cSrcweir 47cdf0e10cSrcweir class CMtaOleClipboard 48cdf0e10cSrcweir { 49cdf0e10cSrcweir public: 50cdf0e10cSrcweir typedef void ( WINAPI *LPFNC_CLIPVIEWER_CALLBACK_t )( void ); 51cdf0e10cSrcweir 52cdf0e10cSrcweir public: 53cdf0e10cSrcweir CMtaOleClipboard( ); 54cdf0e10cSrcweir ~CMtaOleClipboard( ); 55cdf0e10cSrcweir 56cdf0e10cSrcweir // clipboard functions 57cdf0e10cSrcweir HRESULT setClipboard( IDataObject* pIDataObject ); 58cdf0e10cSrcweir HRESULT getClipboard( IDataObject** ppIDataObject ); 59cdf0e10cSrcweir HRESULT flushClipboard( ); 60cdf0e10cSrcweir 61cdf0e10cSrcweir // register/unregister a clipboard viewer; there can only 62cdf0e10cSrcweir // be one at a time; parameter NULL means unregister 63cdf0e10cSrcweir // a clipboard viewer 64cdf0e10cSrcweir // returns true on success else false; use GetLastError( ) in 65cdf0e10cSrcweir // false case 66cdf0e10cSrcweir sal_Bool registerClipViewer( LPFNC_CLIPVIEWER_CALLBACK_t pfncClipViewerCallback ); 67cdf0e10cSrcweir 68cdf0e10cSrcweir private: 69cdf0e10cSrcweir unsigned int run( ); 70cdf0e10cSrcweir 71cdf0e10cSrcweir // create a hidden windows which serves as an request 72cdf0e10cSrcweir // target; so we guarantee synchronization 73cdf0e10cSrcweir void createMtaOleReqWnd( ); 74cdf0e10cSrcweir 75cdf0e10cSrcweir // message support 76cdf0e10cSrcweir sal_Bool postMessage( UINT msg, WPARAM wParam = 0, LPARAM lParam = 0 ); 77cdf0e10cSrcweir LRESULT sendMessage( UINT msg, WPARAM wParam = 0, LPARAM lParam = 0 ); 78cdf0e10cSrcweir 79cdf0e10cSrcweir //--------------------------------------------------------------- 80cdf0e10cSrcweir // message handler functions; remeber these functions are called 81cdf0e10cSrcweir // from a different thread context! 82cdf0e10cSrcweir //--------------------------------------------------------------- 83cdf0e10cSrcweir 84cdf0e10cSrcweir LRESULT onSetClipboard( IDataObject* pIDataObject ); 85cdf0e10cSrcweir LRESULT onGetClipboard( LPSTREAM* ppStream ); 86cdf0e10cSrcweir LRESULT onFlushClipboard( ); 87cdf0e10cSrcweir sal_Bool onRegisterClipViewer( LPFNC_CLIPVIEWER_CALLBACK_t pfncClipViewerCallback ); 88cdf0e10cSrcweir 89cdf0e10cSrcweir // win32 clipboard-viewer support 90cdf0e10cSrcweir LRESULT onChangeCBChain( HWND hWndRemove, HWND hWndNext ); 91cdf0e10cSrcweir LRESULT onDrawClipboard( ); 92cdf0e10cSrcweir 93cdf0e10cSrcweir static LRESULT CALLBACK mtaOleReqWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); 94cdf0e10cSrcweir static unsigned int WINAPI oleThreadProc( LPVOID pParam ); 95cdf0e10cSrcweir 96cdf0e10cSrcweir static unsigned int WINAPI clipboardChangedNotifierThreadProc( LPVOID pParam ); 97cdf0e10cSrcweir 98cdf0e10cSrcweir sal_Bool WaitForThreadReady( ) const; 99cdf0e10cSrcweir 100cdf0e10cSrcweir private: 101cdf0e10cSrcweir HANDLE m_hOleThread; 102cdf0e10cSrcweir unsigned m_uOleThreadId; 103cdf0e10cSrcweir HANDLE m_hEvtThrdReady; 104cdf0e10cSrcweir HWND m_hwndMtaOleReqWnd; 105cdf0e10cSrcweir ATOM m_MtaOleReqWndClassAtom; 106cdf0e10cSrcweir HWND m_hwndNextClipViewer; 107cdf0e10cSrcweir LPFNC_CLIPVIEWER_CALLBACK_t m_pfncClipViewerCallback; 108cdf0e10cSrcweir sal_Bool m_bInRegisterClipViewer; 109cdf0e10cSrcweir 110cdf0e10cSrcweir sal_Bool m_bRunClipboardNotifierThread; 111cdf0e10cSrcweir HANDLE m_hClipboardChangedNotifierThread; 112cdf0e10cSrcweir HANDLE m_hClipboardChangedNotifierEvents[2]; 113cdf0e10cSrcweir HANDLE& m_hClipboardChangedEvent; 114cdf0e10cSrcweir HANDLE& m_hTerminateClipboardChangedNotifierEvent; 115cdf0e10cSrcweir osl::Mutex m_ClipboardChangedEventCountMutex; 116cdf0e10cSrcweir sal_Int32 m_ClipboardChangedEventCount; 117cdf0e10cSrcweir 118cdf0e10cSrcweir osl::Mutex m_pfncClipViewerCallbackMutex; 119cdf0e10cSrcweir 120cdf0e10cSrcweir static CMtaOleClipboard* s_theMtaOleClipboardInst; 121cdf0e10cSrcweir 122cdf0e10cSrcweir // not allowed 123cdf0e10cSrcweir private: 124cdf0e10cSrcweir CMtaOleClipboard( const CMtaOleClipboard& ); 125cdf0e10cSrcweir CMtaOleClipboard& operator=( const CMtaOleClipboard& ); 126cdf0e10cSrcweir 127cdf0e10cSrcweir friend LRESULT CALLBACK mtaOleReqWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); 128cdf0e10cSrcweir }; 129cdf0e10cSrcweir 130cdf0e10cSrcweir #endif 131