vcl/inc/SwapFile.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 #pragma once
  21
  22 #include <vcl/dllapi.h>
  23 #include <tools/urlobj.hxx>
  24 #include <tools/stream.hxx>
  25 #include <unotools/ucbhelper.hxx>
  26 #include <unotools/ucbstreamhelper.hxx>
  27
  28 namespace vcl
  29 {
  30 class VCL_DLLPUBLIC SwapFile
  31 {
  32 private:
  33     INetURLObject maSwapURL;
  34
  35 public:
  36     SwapFile(INetURLObject const& rSwapURL)
  37         : maSwapURL(rSwapURL)
  38     {
  39     }
  40
  41     ~SwapFile() COVERITY_NOEXCEPT_FALSE
  42     {
  43         utl::UCBContentHelper::Kill(maSwapURL.GetMainURL(INetURLObject::DecodeMechanism::NONE));
  44     }
  45
  46     const INetURLObject& getSwapURL() const { return maSwapURL; }
  47
  48     OUString getSwapURLString() const
  49     {
  50         return maSwapURL.GetMainURL(INetURLObject::DecodeMechanism::NONE);
  51     }
  52
  53     std::unique_ptr<SvStream> openOutputStream()
  54     {
  55         OUString sSwapURL = getSwapURLString();
  56         if (!sSwapURL.isEmpty())
  57         {
  58             try
  59             {
  60                 return utl::UcbStreamHelper::CreateStream(
  61                     sSwapURL, StreamMode::READWRITE | StreamMode::SHARE_DENYWRITE);
  62             }
  63             catch (const css::uno::Exception&)
  64             {
  65             }
  66         }
  67         return std::unique_ptr<SvStream>();
  68     }
  69 };
  70 }
  71
  72 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */