sd/source/ui/slidesorter/controller/SlsTransferableData.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 <controller/SlsTransferableData.hxx>
  21
  22 #include <SlideSorterViewShell.hxx>
  23
  24 namespace sd::slidesorter::controller {
  25
  26 rtl::Reference<SdTransferable> TransferableData::CreateTransferable (
  27     SdDrawDocument* pSrcDoc,
  28     SlideSorterViewShell* pViewShell,
  29     ::std::vector<Representative>&& rRepresentatives)
  30 {
  31     rtl::Reference<SdTransferable> pTransferable = new SdTransferable (pSrcDoc, nullptr, false/*bInitOnGetData*/);
  32     auto pData = std::make_shared<TransferableData>(pViewShell, std::move(rRepresentatives));
  33     pTransferable->AddUserData(pData);
  34     return pTransferable;
  35 }
  36
  37 std::shared_ptr<TransferableData> TransferableData::GetFromTransferable (const SdTransferable* pTransferable)
  38 {
  39     if (pTransferable)
  40     {
  41         for (sal_Int32 nIndex=0,nCount=pTransferable->GetUserDataCount(); nIndex<nCount; ++nIndex)
  42         {
  43             std::shared_ptr<TransferableData> xData =
  44                 std::dynamic_pointer_cast<TransferableData>(pTransferable->GetUserData(nIndex));
  45             if (xData)
  46                 return xData;
  47         }
  48     }
  49     return std::shared_ptr<TransferableData>();
  50 }
  51
  52 TransferableData::TransferableData (
  53     SlideSorterViewShell* pViewShell,
  54     ::std::vector<Representative>&& rRepresentatives)
  55     : mpViewShell(pViewShell),
  56       maRepresentatives(std::move(rRepresentatives))
  57 {
  58     if (mpViewShell != nullptr)
  59         StartListening(*mpViewShell);
  60 }
  61
  62 TransferableData::~TransferableData()
  63 {
  64     if (mpViewShell != nullptr)
  65         EndListening(*mpViewShell);
  66 }
  67
  68 void TransferableData::Notify (SfxBroadcaster&, const SfxHint& rHint)
  69 {
  70     if (mpViewShell)
  71     {
  72         if (rHint.GetId() == SfxHintId::Dying)
  73         {
  74             // This hint may come either from the ViewShell or from the
  75             // document (registered by SdTransferable).  We do not know
  76             // which but both are sufficient to disconnect from the
  77             // ViewShell.
  78             EndListening(*mpViewShell);
  79             mpViewShell = nullptr;
  80         }
  81     }
  82 }
  83
  84 } // end of namespace ::sd::slidesorter::controller
  85
  86 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */