sfx2/source/sidebar/AsynchronousCall.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 #include "AsynchronousCall.hxx"
  20 #include <vcl/svapp.hxx>
  21
  22 namespace sfx2 { namespace sidebar {
  23
  24 AsynchronousCall::AsynchronousCall()
  25     : maAction(),
  26       mnCallId(0)
  27 {
  28 }
  29
  30 AsynchronousCall::AsynchronousCall (const Action& rAction)
  31     : maAction(rAction),
  32       mnCallId(0)
  33 {
  34 }
  35
  36 AsynchronousCall::~AsynchronousCall()
  37 {
  38     CancelRequest();
  39 }
  40
  41 void AsynchronousCall::RequestCall()
  42 {
  43     if (mnCallId == 0)
  44     {
  45         Link<> aLink (LINK(this, AsynchronousCall, HandleUserCall));
  46         mnCallId = Application::PostUserEvent(aLink);
  47     }
  48 }
  49
  50 void AsynchronousCall::CancelRequest()
  51 {
  52     if (mnCallId != 0)
  53     {
  54         Application::RemoveUserEvent(mnCallId);
  55         mnCallId = 0;
  56     }
  57 }
  58
  59 IMPL_LINK_NOARG(AsynchronousCall, HandleUserCall )
  60 {
  61     mnCallId = 0;
  62     if (maAction)
  63         maAction();
  64
  65     return sal_IntPtr(true);
  66 }
  67
  68 } } // end of namespace sfx2::sidebar
  69
  70 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */