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