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-rw-r--r--src/history/autosaver.cpp96
1 files changed, 96 insertions, 0 deletions
diff --git a/src/history/autosaver.cpp b/src/history/autosaver.cpp
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+/* ============================================================
+*
+* This file is a part of the rekonq project
+*
+* Copyright (C) 2007-2008 Trolltech ASA. All rights reserved
+* Copyright (C) 2008-2011 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"
+
+// Qt Includes
+#include <QMetaObject>
+#include <QTimerEvent>
+#include <QBasicTimer>
+#include <QTime>
+
+
+const int AUTOSAVE_TIME = 1000 * 3; // seconds
+const int MAX_TIME_LIMIT = 1000 * 15; // seconds
+
+
+AutoSaver::AutoSaver(QObject *parent)
+ : QObject(parent)
+ , m_timer(new QBasicTimer)
+ , m_firstChange(new QTime)
+{
+}
+
+
+AutoSaver::~AutoSaver()
+{
+ if (m_timer->isActive())
+ kDebug() << "AutoSaver: still active when destroyed, changes not saved.";
+
+ delete m_firstChange;
+ delete m_timer;
+}
+
+
+void AutoSaver::saveIfNeccessary()
+{
+ if (m_timer->isActive())
+ save();
+}
+
+
+void AutoSaver::changeOccurred()
+{
+ if (m_firstChange->isNull())
+ m_firstChange->start();
+
+ if (m_firstChange->elapsed() > MAX_TIME_LIMIT)
+ save();
+ else
+ m_timer->start(AUTOSAVE_TIME, this);
+}
+
+
+void AutoSaver::timerEvent(QTimerEvent *event)
+{
+ if (event->timerId() == m_timer->timerId())
+ save();
+ else
+ QObject::timerEvent(event);
+}
+
+
+void AutoSaver::save()
+{
+ m_timer->stop();
+ delete m_firstChange;
+ m_firstChange = new QTime;
+
+ emit saveNeeded();
+}