dtrans/source/win32/dtobj/XNotifyingDataObject.cxx

   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 #include <osl/diagnose.h>
  21 #include "XNotifyingDataObject.hxx"
  22 #include "../clipb/WinClipbImpl.hxx"
  23 #include "../clipb/WinClipboard.hxx"
  24
  25 using namespace com::sun::star::datatransfer;
  26 using namespace com::sun::star::datatransfer::clipboard;
  27 using com::sun::star::uno::RuntimeException;
  28 using com::sun::star::uno::Reference;
  29
  30 CXNotifyingDataObject::CXNotifyingDataObject(
  31     const IDataObjectPtr& aIDataObject,
  32     const Reference< XTransferable >& aXTransferable,
  33     const Reference< XClipboardOwner >& aXClipOwner,
  34     CWinClipbImpl* theWinClipImpl ) :
  35     m_nRefCnt( 0 ),
  36     m_aIDataObject( aIDataObject ),
  37     m_XTransferable( aXTransferable ),
  38     m_XClipboardOwner( aXClipOwner ),
  39     m_pWinClipImpl( theWinClipImpl )
  40 {
  41 }
  42
  43 STDMETHODIMP CXNotifyingDataObject::QueryInterface( REFIID iid, void** ppvObject )
  44 {
  45     if ( nullptr == ppvObject )
  46         return E_INVALIDARG;
  47
  48     HRESULT hr = E_NOINTERFACE;
  49
  50     *ppvObject = nullptr;
  51     if ( ( __uuidof( IUnknown ) == iid ) ||
  52          ( __uuidof( IDataObject ) == iid ) )
  53     {
  54         *ppvObject = static_cast< IUnknown* >( this );
  55         static_cast<LPUNKNOWN>(*ppvObject)->AddRef( );
  56         hr = S_OK;
  57     }
  58
  59     return hr;
  60 }
  61
  62 STDMETHODIMP_(ULONG) CXNotifyingDataObject::AddRef( )
  63 {
  64     return static_cast< ULONG >( InterlockedIncrement( &m_nRefCnt ) );
  65 }
  66
  67 STDMETHODIMP_(ULONG) CXNotifyingDataObject::Release( )
  68 {
  69     ULONG nRefCnt =
  70         static_cast< ULONG >( InterlockedDecrement( &m_nRefCnt ) );
  71
  72     if ( 0 == nRefCnt )
  73     {
  74         if ( m_pWinClipImpl )
  75             m_pWinClipImpl->onReleaseDataObject( this );
  76
  77         delete this;
  78     }
  79
  80     return nRefCnt;
  81 }
  82
  83 STDMETHODIMP CXNotifyingDataObject::GetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium )
  84 {
  85     return m_aIDataObject->GetData(pFormatetc, pmedium);
  86 }
  87
  88 STDMETHODIMP CXNotifyingDataObject::EnumFormatEtc(
  89     DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc )
  90 {
  91     return m_aIDataObject->EnumFormatEtc(dwDirection, ppenumFormatetc);
  92 }
  93
  94 STDMETHODIMP CXNotifyingDataObject::QueryGetData( FORMATETC * pFormatetc )
  95 {
  96     return m_aIDataObject->QueryGetData(pFormatetc);
  97 }
  98
  99 STDMETHODIMP CXNotifyingDataObject::GetDataHere( FORMATETC * lpFetc, STGMEDIUM * lpStgMedium )
 100 {
 101     return m_aIDataObject->GetDataHere(lpFetc, lpStgMedium);
 102 }
 103
 104 STDMETHODIMP CXNotifyingDataObject::GetCanonicalFormatEtc( FORMATETC * lpFetc, FORMATETC * lpCanonicalFetc )
 105 {
 106     return m_aIDataObject->GetCanonicalFormatEtc(lpFetc, lpCanonicalFetc);
 107 }
 108
 109 STDMETHODIMP CXNotifyingDataObject::SetData( FORMATETC * lpFetc, STGMEDIUM * lpStgMedium, BOOL bRelease )
 110 {
 111     return m_aIDataObject->SetData( lpFetc, lpStgMedium, bRelease );
 112 }
 113
 114 STDMETHODIMP CXNotifyingDataObject::DAdvise(
 115     FORMATETC * lpFetc, DWORD advf, IAdviseSink * lpAdvSink, DWORD* pdwConnection )
 116 {
 117     return m_aIDataObject->DAdvise( lpFetc, advf, lpAdvSink, pdwConnection );
 118 }
 119
 120 STDMETHODIMP CXNotifyingDataObject::DUnadvise( DWORD dwConnection )
 121 {
 122     return m_aIDataObject->DUnadvise( dwConnection );
 123 }
 124
 125 STDMETHODIMP CXNotifyingDataObject::EnumDAdvise( IEnumSTATDATA ** ppenumAdvise )
 126 {
 127     return m_aIDataObject->EnumDAdvise( ppenumAdvise );
 128 }
 129
 130 CXNotifyingDataObject::operator IDataObject*( )
 131 {
 132     return static_cast< IDataObject* >( this );
 133 }
 134
 135 void CXNotifyingDataObject::lostOwnership( )
 136 {
 137     try
 138     {
 139         if (m_XClipboardOwner.is())
 140             m_XClipboardOwner->lostOwnership(
 141                 static_cast<XClipboardEx*>(m_pWinClipImpl->m_pWinClipboard ), m_XTransferable);
 142     }
 143     catch(RuntimeException&)
 144     {
 145         OSL_FAIL( "RuntimeException caught" );
 146     }
 147 }
 148
 149 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */