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/**************************************************************************
**
** Copyright (C) 2012-2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "globalsettingsoperation.h"
#include "qsettingswrapper.h"
using namespace QInstaller;
GlobalSettingsOperation::GlobalSettingsOperation()
{
setName(QLatin1String("GlobalConfig"));
}
void GlobalSettingsOperation::backup()
{
}
bool GlobalSettingsOperation::performOperation()
{
QString key, value;
QScopedPointer<QSettingsWrapper> settings(setup(&key, &value, arguments()));
if (settings.isNull())
return false;
if (!settings->isWritable()) {
setError(UserDefinedError);
setErrorString(tr("Settings are not writable"));
return false;
}
const QVariant oldValue = settings->value(key);
settings->setValue(key, value);
settings->sync();
if (settings->status() != QSettingsWrapper::NoError) {
setError(UserDefinedError);
setErrorString(tr("Failed to write settings"));
return false;
}
setValue(QLatin1String("oldvalue"), oldValue);
return true;
}
bool GlobalSettingsOperation::undoOperation()
{
QString key, val;
QScopedPointer<QSettingsWrapper> settings(setup(&key, &val, arguments()));
if (settings.isNull())
return false;
// be sure it's still our value and nobody changed it in between
const QVariant oldValue = value(QLatin1String("oldvalue"));
if (settings->value(key) == val) {
// restore the previous state
if (oldValue.isNull())
settings->remove(key);
else
settings->setValue(key, oldValue);
}
return true;
}
bool GlobalSettingsOperation::testOperation()
{
return true;
}
Operation *GlobalSettingsOperation::clone() const
{
return new GlobalSettingsOperation();
}
QSettingsWrapper *GlobalSettingsOperation::setup(QString *key, QString *value, const QStringList &arguments)
{
if (arguments.count() != 3 && arguments.count() != 4) {
setError(InvalidArguments);
setErrorString(tr("Invalid arguments in %0: %1 arguments given, %2 expected%3.")
.arg(name()).arg(arguments.count()).arg(tr("3 or 4"), QLatin1String("")));
return 0;
}
if (arguments.count() == 4) {
const QString &company = arguments.at(0);
const QString &application = arguments.at(1);
*key = arguments.at(2);
*value = arguments.at(3);
return new QSettingsWrapper(company, application);
} else if (arguments.count() == 3) {
const QString &filename = arguments.at(0);
*key = arguments.at(1);
*value = arguments.at(2);
return new QSettingsWrapper(filename, QSettingsWrapper::NativeFormat);
}
return 0;
}
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