include/svtools/filechangedchecker.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
  10 #ifndef INCLUDED_SVTOOLS_FILECHANGEDCHECKER_HXX
  11 #define INCLUDED_SVTOOLS_FILECHANGEDCHECKER_HXX
  12
  13 #include <svtools/svtdllapi.h>
  14 #include <boost/function.hpp>
  15 #include <osl/file.hxx>
  16 #include <vcl/timer.hxx>
  17 #include <vcl/idle.hxx>
  18
  19 /** Periodically checks if a file has been modified
  20
  21     Instances of this class setup a vcl timer to occasionally wake up
  22     check whether file modification time has changed.
  23  */
  24 class SVT_DLLPUBLIC FileChangedChecker
  25 {
  26 private :
  27     Idle                    mIdle;
  28     OUString            mFileName;
  29     TimeValue                mLastModTime;
  30     ::boost::function0<void> mpCallback;
  31
  32     bool SVT_DLLPRIVATE getCurrentModTime(TimeValue& o_rValue) const;
  33     DECL_LINK_TYPED(TimerHandler, Idle *, void);
  34
  35 public :
  36     void resetTimer();
  37     bool hasFileChanged();
  38     FileChangedChecker(const OUString& rFilename, const ::boost::function0<void>& rCallback);
  39 };
  40
  41 #endif