PrismLauncher/logic/BaseConfigObject.cpp

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/* Copyright 2015 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "BaseConfigObject.h"
#include <QTimer>
#include <QFile>
#include <QCoreApplication>
#include <QDebug>
#include "Exception.h"
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#include "FileSystem.h"
BaseConfigObject::BaseConfigObject(const QString &filename)
: m_filename(filename)
{
m_saveTimer = new QTimer;
m_saveTimer->setSingleShot(true);
// cppcheck-suppress pureVirtualCall
QObject::connect(m_saveTimer, &QTimer::timeout, [this](){saveNow();});
setSaveTimeout(250);
m_initialReadTimer = new QTimer;
m_initialReadTimer->setSingleShot(true);
QObject::connect(m_initialReadTimer, &QTimer::timeout, [this]()
{
loadNow();
m_initialReadTimer->deleteLater();
m_initialReadTimer = 0;
});
m_initialReadTimer->start(0);
// cppcheck-suppress pureVirtualCall
m_appQuitConnection = QObject::connect(qApp, &QCoreApplication::aboutToQuit, [this](){saveNow();});
}
BaseConfigObject::~BaseConfigObject()
{
delete m_saveTimer;
if (m_initialReadTimer)
{
delete m_initialReadTimer;
}
QObject::disconnect(m_appQuitConnection);
}
void BaseConfigObject::setSaveTimeout(int msec)
{
m_saveTimer->setInterval(msec);
}
void BaseConfigObject::scheduleSave()
{
m_saveTimer->stop();
m_saveTimer->start();
}
void BaseConfigObject::saveNow()
{
if (m_saveTimer->isActive())
{
m_saveTimer->stop();
}
if (m_disableSaving)
{
return;
}
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try
{
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FS::write(m_filename, doSave());
}
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catch (Exception & e)
{
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qCritical() << e.cause();
}
}
void BaseConfigObject::loadNow()
{
if (m_saveTimer->isActive())
{
saveNow();
}
try
{
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doLoad(FS::read(m_filename));
}
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catch (Exception & e)
{
qWarning() << "Error loading" << m_filename << ":" << e.cause();
}
}