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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativebackgroundaudio_p.h"
#include <qmediabackgroundplaybackcontrol.h>
#include <qmediaservice.h>
void QDeclarativeBackgroundAudio::classBegin()
{
}
void QDeclarativeBackgroundAudio::componentComplete()
{
setObject(this, QMediaServiceProviderHint(QMediaServiceProviderHint::BackgroundPlayback));
if (m_mediaService) {
m_backgroundPlaybackControl =
static_cast<QMediaBackgroundPlaybackControl*>(
m_mediaService->requestControl(QMediaBackgroundPlaybackControl_iid));
if (m_backgroundPlaybackControl) {
connect(m_backgroundPlaybackControl, SIGNAL(acquired()), this, SIGNAL(acquiredChanged()));
connect(m_backgroundPlaybackControl, SIGNAL(lost()), this, SIGNAL(acquiredChanged()));
if (!m_contextId.isEmpty())
m_backgroundPlaybackControl->setContextId(m_contextId);
} else {
qWarning("can not get QMediaBackgroundPlaybackControl!");
}
}
QDeclarativeMediaBase::componentComplete();
}
QDeclarativeBackgroundAudio::QDeclarativeBackgroundAudio(QObject *parent)
: QDeclarativeAudio(parent)
, m_backgroundPlaybackControl(0)
{
}
QDeclarativeBackgroundAudio::~QDeclarativeBackgroundAudio()
{
if (m_backgroundPlaybackControl)
m_mediaService->releaseControl(m_backgroundPlaybackControl);
}
/*!
\qmlproperty string BackgroundAudio::contextId
This property holds the unique contextId for the application
When a new contextId is set, the previously set contextId will be released automatically.
*/
QString QDeclarativeBackgroundAudio::contextId() const
{
return m_contextId;
}
void QDeclarativeBackgroundAudio::setContextId(QString contextId)
{
if (m_contextId == contextId)
return;
m_contextId = contextId;
if (m_backgroundPlaybackControl)
m_backgroundPlaybackControl->setContextId(m_contextId);
emit contextIdChanged();
}
/*!
\qmlproperty bool BackgroundAudio::acquired
This property indicates whether the application holds the playback resource in music daemon
*/
bool QDeclarativeBackgroundAudio::isAcquired() const
{
if (!m_backgroundPlaybackControl)
return false;
return m_backgroundPlaybackControl->isAcquired();
}
/*!
\qmlmethod BackgroundAudio::acquire()
try to acquire the playback resource in music daemon
*/
void QDeclarativeBackgroundAudio::acquire()
{
if (isAcquired() || !m_backgroundPlaybackControl)
return;
m_backgroundPlaybackControl->acquire();
}
/*!
\qmlmethod BackgroundAudio::acquire()
try to release the playback resource in music daemon
*/
void QDeclarativeBackgroundAudio::release()
{
if (!isAcquired() || !m_backgroundPlaybackControl)
return;
m_backgroundPlaybackControl->release();
}
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