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/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2007-2008 Trolltech ASA. All rights reserved
* Copyright (C) 2008-2010 by Andrea Diamantini <adjam7 at gmail dot com>
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ============================================================ */
// Self Includes
#include "autosaver.h"
#include "autosaver.moc"
// KDE Includes
#include <KDebug>
// Qt Includes
#include <QtCore/QMetaObject>
#define AUTOSAVE_IN 1000 * 3 // seconds
#define MAXWAIT 1000 * 15 // seconds
AutoSaver::AutoSaver(QObject *parent) : QObject(parent)
{
Q_ASSERT(parent);
}
AutoSaver::~AutoSaver()
{
if (m_timer.isActive())
{
kDebug() << "AutoSaver: still active when destroyed, changes not saved.";
}
}
void AutoSaver::changeOccurred()
{
if (m_firstChange.isNull())
m_firstChange.start();
if (m_firstChange.elapsed() > MAXWAIT)
{
saveIfNeccessary();
}
else
{
m_timer.start(AUTOSAVE_IN, this);
}
}
void AutoSaver::timerEvent(QTimerEvent *event)
{
if (event->timerId() == m_timer.timerId())
{
saveIfNeccessary();
}
else
{
QObject::timerEvent(event);
}
}
void AutoSaver::saveIfNeccessary()
{
if (!m_timer.isActive())
return;
m_timer.stop();
m_firstChange = QTime();
if (!QMetaObject::invokeMethod(parent(), "save", Qt::DirectConnection))
{
kDebug() << "AutoSaver: error invoking slot save() on parent";
}
}
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