1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 *

     5 * This program is free software: you can redistribute it and/or modify

     6 * it under the terms of the GNU Lesser General Public License as published by

     7 * the Free Software Foundation, version 2.1 of the License.

     8 *

     9 * This program is distributed in the hope that it will be useful,

    10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 * GNU Lesser General Public License for more details.

    13 *

    14 * You should have received a copy of the GNU Lesser General Public License

    15 * along with this program.  If not,

    16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

    17 *

    18 * Description:

    19 * This file implements the SystemDeviceImpl class.

    20 */

    21 #include <QList>

    22 #include <QString>

    23 #include "SystemDeviceImpl.h"

    24 #include "Utilities.h"

    25 

    26 namespace GVA {

    27 

    28 SystemDeviceImpl::SystemDeviceImpl()

    29 {

    30     // create Qt Mobility API objects for device info

    31     m_deviceInfo = new QSystemDeviceInfo(this);

    32 

    33     // When the m_deviceInfo signals battery level changed,

    34     // DeviceDelegate emits batteryLevelChanged

    35     safe_connect(m_deviceInfo, SIGNAL(batteryLevelChanged(int)),

    36                  this, SIGNAL(batteryLevelChanged(int)));

    37 

    38     // set current charging state then keep it up to date with signal handler

    39     m_batteryCharging = (m_deviceInfo->currentPowerState() ==

    40         QSystemDeviceInfo::WallPowerChargingBattery) ? true : false;

    41     safe_connect(m_deviceInfo, SIGNAL(powerStateChanged(QSystemDeviceInfo::PowerState)),

    42                  this, SLOT(handlePowerStateChanged(QSystemDeviceInfo::PowerState)));

    43 }

    44 

    45 SystemDeviceImpl::~SystemDeviceImpl()

    46 {

    47     // clean up

    48     delete m_deviceInfo;

    49 }

    50 

    51 //! Get the current battery level.

    52 int SystemDeviceImpl::getBatteryLevel() const

    53 {

    54     return (m_deviceInfo->batteryLevel());

    55 }

    56 

    57 //! Handles the powerStateChanged signal from system device info.

    58 /*!

    59   \param state new power state

    60 */

    61 void SystemDeviceImpl::handlePowerStateChanged(QSystemDeviceInfo::PowerState state)

    62 {

    63     bool batteryCharging =

    64         (state == QSystemDeviceInfo::WallPowerChargingBattery) ? true : false;

    65 

    66     if (batteryCharging != m_batteryCharging) {

    67         m_batteryCharging = batteryCharging;

    68         //qDebug() << "DeviceDelegate: new charging = " << m_batteryCharging;

    69         // emit battery level - subscriber will get charging state if desired

    70         emit batteryLevelChanged(m_deviceInfo->batteryLevel());

    71     }

    72 }

    73 

    74 } // GVA

    75