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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include <svtools/svtdllapi.h>
#include <osl/time.h>
#include <rtl/ustring.hxx>
#include <vcl/timer.hxx>
#include <functional>
/** Periodically checks if a file has been modified
Instances of this class setup a vcl timer to occasionally wake up
check whether file modification time has changed.
*/
class SVT_DLLPUBLIC FileChangedChecker
{
private:
Timer mTimer;
OUString mFileName;
TimeValue mLastModTime;
::std::function<void ()> mpCallback;
bool SVT_DLLPRIVATE getCurrentModTime(TimeValue& o_rValue) const;
DECL_DLLPRIVATE_LINK(TimerHandler, Timer *, void);
public:
void resetTimer();
// bUpdate = true when file has changed, get the return and the object get the new time
// = false when file has changed, only get the return, not change the object
bool hasFileChanged(bool bUpdate = true);
FileChangedChecker(const OUString& rFilename,
const ::std::function<void ()>& rCallback);
// without Timer function
FileChangedChecker(const OUString& rFilename);
};
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