1 files changed, 123 insertions, 0 deletions
diff --git a/src/libs/installer/globalsettingsoperation.cpp b/src/libs/installer/globalsettingsoperation.cpp
new file mode 100644
index 000000000..4fe68abae
--- /dev/null
+++ b/src/libs/installer/globalsettingsoperation.cpp
@@ -0,0 +1,123 @@
+/**************************************************************************
+**
+** This file is part of Installer Framework
+**
+** Copyright (c) 2011-2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#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() == 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);
+    }
+
+    setError(InvalidArguments);
+    setErrorString(tr("Invalid arguments in 0%: %1 arguments given, at least 3 expected.")
+        .arg(name()).arg(arguments.count()));
+    return 0;
+}