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