dtrans/source/win32/dtobj/XNotifyingDataObject.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_DTRANS_SOURCE_WIN32_DTOBJ_XNOTIFYINGDATAOBJECT_HXX
  21 #define INCLUDED_DTRANS_SOURCE_WIN32_DTOBJ_XNOTIFYINGDATAOBJECT_HXX
  22
  23 #include <com/sun/star/datatransfer/XTransferable.hpp>
  24 #include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
  25
  26 #if !defined WIN32_LEAN_AND_MEAN
  27 # define WIN32_LEAN_AND_MEAN
  28 #endif
  29 #include <windows.h>
  30 #include <objidl.h>
  31
  32 #include <systools/win32/comtools.hxx>
  33
  34 /*--------------------------------------------------------------------------
  35     To implement the lostOwnership mechanism cleanly we need this wrapper
  36     object
  37 ----------------------------------------------------------------------------*/
  38
  39 // forward
  40 class CWinClipbImpl;
  41
  42 class CXNotifyingDataObject : public IDataObject
  43 {
  44 public:
  45     CXNotifyingDataObject(
  46         const IDataObjectPtr& aIDataObject,
  47         const css::uno::Reference< css::datatransfer::XTransferable >& aXTransferable,
  48         const css::uno::Reference< css::datatransfer::clipboard::XClipboardOwner >& aXClipOwner,
  49         CWinClipbImpl* theWinClipImpl );
  50
  51     virtual ~CXNotifyingDataObject() {}
  52
  53     // ole interface implementation
  54
  55     //IUnknown interface methods
  56     STDMETHODIMP           QueryInterface(REFIID iid, void** ppvObject) override;
  57     STDMETHODIMP_( ULONG ) AddRef( ) override;
  58     STDMETHODIMP_( ULONG ) Release( ) override;
  59
  60     // IDataObject interface methods
  61     STDMETHODIMP GetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
  62     STDMETHODIMP GetDataHere( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
  63     STDMETHODIMP QueryGetData( FORMATETC * pFormatetc ) override;
  64     STDMETHODIMP GetCanonicalFormatEtc( FORMATETC * pFormatectIn, FORMATETC * pFormatetcOut ) override;
  65     STDMETHODIMP SetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium, BOOL fRelease ) override;
  66     STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) override;
  67     STDMETHODIMP DAdvise( FORMATETC * pFormatetc, DWORD advf, IAdviseSink * pAdvSink, DWORD* pdwConnection ) override;
  68     STDMETHODIMP DUnadvise( DWORD dwConnection ) override;
  69     STDMETHODIMP EnumDAdvise( IEnumSTATDATA** ppenumAdvise ) override;
  70
  71     operator IDataObject*( );
  72
  73 private:
  74     void lostOwnership( );
  75
  76 private:
  77     sal_Int32                                                                     m_nRefCnt;
  78     IDataObjectPtr                                                                m_aIDataObject;
  79     const css::uno::Reference< css::datatransfer::XTransferable >                 m_XTransferable;
  80     const css::uno::Reference< css::datatransfer::clipboard::XClipboardOwner >    m_XClipboardOwner;
  81     CWinClipbImpl*                                                                m_pWinClipImpl;
  82
  83     friend class CWinClipbImpl;
  84 };
  85
  86 #endif
  87
  88 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */