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unity8/plugins/LightDM/DBusGreeter.cpp
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1/*
2 * Copyright (C) 2014 Canonical, Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
17#include "DBusGreeter.h"
18#include "Greeter.h"
20#include <QDBusMessage>
21#include <QStringList>
23DBusGreeter::DBusGreeter(Greeter *greeter, const QDBusConnection &connection, const QString &path)
24 : QObject(greeter),
25 m_greeter(greeter),
26 m_connection(connection),
27 m_path(path)
29 connect(m_greeter, SIGNAL(isActiveChanged()), this, SLOT(isActiveChangedHandler()));
32bool DBusGreeter::isActive() const
34 return m_greeter->isActive();
37void DBusGreeter::isActiveChangedHandler()
39 notifyPropertyChanged("IsActive", isActive());
40 Q_EMIT isActiveChanged();
43// Manually emit a PropertiesChanged signal over DBus, because QtDBus
44// doesn't do it for us on Q_PROPERTIES, oddly enough.
45void DBusGreeter::notifyPropertyChanged(const QString& propertyName, const QVariant &value)
47 QDBusMessage message;
48 QVariantMap changedProps;
50 changedProps.insert(propertyName, value);
52 message = QDBusMessage::createSignal(m_path,
53 "org.freedesktop.DBus.Properties",
54 "PropertiesChanged");
55 message << "com.canonical.UnityGreeter";
56 message << changedProps;
57 message << QStringList();
59 m_connection.send(message);