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/**************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see http://qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "globalsettingsoperation.h"
#include "qsettingswrapper.h"
using namespace QInstaller;
GlobalSettingsOperation::GlobalSettingsOperation(PackageManagerCore *core)
: UpdateOperation(core)
{
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;
}
QSettingsWrapper *GlobalSettingsOperation::setup(QString *key, QString *value, const QStringList &arguments)
{
if (!checkArgumentCount(3, 5))
return 0;
if (arguments.count() == 5) {
QSettingsWrapper::Scope scope = QSettingsWrapper::UserScope;
if (arguments.at(0) == QLatin1String("SystemScope"))
scope = QSettingsWrapper::SystemScope;
const QString &company = arguments.at(1);
const QString &application = arguments.at(2);
*key = arguments.at(3);
*value = arguments.at(4);
return new QSettingsWrapper(scope, company, application);
} else 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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