Powerd.h

/*
 * Copyright (C) 2012, 2013 Canonical Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors: Gerry Boland <gerry.boland@canonical.com>
 *          Michael Terry <michael.terry@canonical.com>
 */
 
#ifndef LOMIRI_POWERD_H
#define LOMIRI_POWERD_H
 
#include <gio/gio.h>
#include <QtCore/QObject>
#include <QtDBus/QDBusInterface>
 
class Powerd: public QObject
{
    Q_OBJECT
    Q_PROPERTY(Status status READ status NOTIFY statusChanged)
    Q_PROPERTY(bool highBrightnessModeEnabled READ highBrightnessModeEnabled NOTIFY highBrightnessModeEnabledChanged FINAL)
 
public:
    enum DisplayStateChangeReason {
        Unknown         = 0,
        Inactivity      = 1, // Display changed state due to inactivity
        PowerKey        = 2, // Display changed state due to user pressing power key
        Proximity       = 3, // Display changed state due to proximity events
        Notification    = 4, // Display changed state due to user notification
        SnapDecision    = 5, // Display changed state due to snap decision prompt
        CallDone        = 6, // Display changed state due to voice call end
    };
    Q_ENUM(DisplayStateChangeReason)
 
    enum Status {
        Off,
        On,
    };
    Q_ENUM(Status)
 
    explicit Powerd(QObject *parent = 0);
    ~Powerd();
 
    Status status() const;
 
    // Not exposed via Q_PROPERTY because we need the 'reason' argument too
    Q_INVOKABLE void setStatus(Status status, DisplayStateChangeReason reason);
 
    bool highBrightnessModeEnabled() const;
 
Q_SIGNALS:
    void statusChanged(DisplayStateChangeReason reason);
    void highBrightnessModeEnabledChanged();
 
private Q_SLOTS:
    void handleDisplayPowerStateChange(int status, int reason);
    void handleHighBrightnessModeChange(bool enabled);
 
private:
    QDBusInterface *lomiriScreen;
    GSettings *systemSettings;
    Status cachedStatus;
    bool m_highBrightnessModeEnabled;
};
 
#endif