sot/source/base/object.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 <sot/object.hxx>
  21
  22 SotObject::SotObject()
  23     : nOwnerLockCount(0)
  24     , bInClose(false)
  25 {
  26 }
  27
  28 SotObject::~SotObject() = default;
  29
  30 /** When the OwnerLock is decremented to zero, the DoClose method is called.
  31  *  This happens independently of the lock or RefCount. If the OwnerLock
  32  *  counter != zero, no DoClose is called by <SotObject::FuzzyLock>.
  33  *
  34  *  bLock - true, lock. false, unlock.
  35  */
  36 void SotObject::OwnerLock(bool bLock)
  37 {
  38     if (bLock)
  39     {
  40         nOwnerLockCount++;
  41         AddFirstRef();
  42     }
  43     else if (nOwnerLockCount)
  44     {
  45         if (0 == --nOwnerLockCount)
  46             DoClose();
  47         ReleaseRef();
  48     }
  49 }
  50
  51 bool SotObject::DoClose()
  52 {
  53     bool bRet = false;
  54     if (!bInClose)
  55     {
  56         tools::SvRef<SotObject> xHoldAlive(this);
  57         bInClose = true;
  58         bRet = Close();
  59         bInClose = false;
  60     }
  61     return bRet;
  62 }
  63
  64 bool SotObject::Close() { return true; }
  65
  66 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */