sfx2/source/control/itemdel.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 <sal/config.h>
  21
  22 #include <boost/noncopyable.hpp>
  23 #include "itemdel.hxx"
  24 #include <vcl/svapp.hxx>
  25 #include <tools/errcode.hxx>
  26 #include <limits.h>
  27 #include <vector>
  28
  29 #include <svl/itempool.hxx>
  30
  31 class SfxItemDisruptor_Impl: private boost::noncopyable
  32 {
  33     SfxPoolItem *pItem;
  34     Link<>       aLink;
  35
  36 private:
  37     DECL_LINK( Delete, void* );
  38
  39 public:
  40     SfxItemDisruptor_Impl( SfxPoolItem *pItemToDesrupt );
  41     void LaunchDeleteOnIdle();
  42     ~SfxItemDisruptor_Impl();
  43 };
  44
  45 SfxItemDisruptor_Impl::SfxItemDisruptor_Impl( SfxPoolItem *pItemToDesrupt ):
  46     pItem(pItemToDesrupt),
  47     aLink( LINK(this, SfxItemDisruptor_Impl, Delete) )
  48 {
  49
  50     DBG_ASSERT( 0 == pItem->GetRefCount(), "disrupting pooled item" );
  51     pItem->SetKind( SFX_ITEMS_DELETEONIDLE );
  52 }
  53
  54 void SfxItemDisruptor_Impl::LaunchDeleteOnIdle()
  55 {
  56     // process in Idle
  57     Application::InsertIdleHdl( aLink, 1 );
  58 }
  59
  60 SfxItemDisruptor_Impl::~SfxItemDisruptor_Impl()
  61 {
  62
  63     // remove from Idle-Handler
  64     Application::RemoveIdleHdl( aLink );
  65
  66     // reset RefCount (was set to SFX_ITEMS_SPECIAL before!)
  67     pItem->SetRefCount( 0 );
  68
  69     delete pItem;
  70 }
  71
  72 IMPL_LINK_NOARG(SfxItemDisruptor_Impl, Delete)
  73 {
  74     delete this;
  75     return 0;
  76 }
  77
  78 void DeleteItemOnIdle(SfxPoolItem* pItem)
  79 {
  80     DBG_ASSERT( 0 == pItem->GetRefCount(), "deleting item in use" );
  81     SfxItemDisruptor_Impl *pDesruptor = new SfxItemDisruptor_Impl(pItem);
  82     pDesruptor->LaunchDeleteOnIdle();
  83     // coverity[leaked_storage] pDesruptor takes care of its own destruction at idle time
  84 }
  85
  86 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */