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/***************************************************************************
**
** Copyright (C) 2014 BlackBerry Limited. All rights reserved.
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtNfc module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qnearfieldmanager_neard_p.h"
#include "qnearfieldtarget_neard_p.h"
#include "neard/manager_p.h"
#include "neard/adapter_p.h"
QT_BEGIN_NAMESPACE
// TODO We need a constructor that lets us select an adapter
QNearFieldManagerPrivateImpl::QNearFieldManagerPrivateImpl()
: QNearFieldManagerPrivate(), m_adapter(0), m_manager(0)
{
m_manager = new OrgNeardManagerInterface(QStringLiteral("org.neard"), QStringLiteral("/"),
QDBusConnection::systemBus(), this);
if (!m_manager->isValid()) {
qDebug() << "Could not connect to manager" << "Neard daemon running?";
return;
}
QDBusPendingReply<QVariantMap> reply = m_manager->GetProperties();
reply.waitForFinished();
if (reply.isError()) {
qDebug() << "Error getting manager properties.";
return;
}
// Now we check if the adapter still exists (it might have been unplugged)
const QDBusArgument &paths = reply.value().value(QStringLiteral("Adapters")).value<QDBusArgument>();
paths.beginArray();
while (!paths.atEnd()) {
QDBusObjectPath path;
paths >> path;
// Select the first adapter
m_adapterPath = path.path();
break;
}
paths.endArray();
}
QNearFieldManagerPrivateImpl::~QNearFieldManagerPrivateImpl()
{
stopTargetDetection();
}
bool QNearFieldManagerPrivateImpl::isAvailable() const
{
if (!m_manager->isValid() || m_adapterPath.isNull()) {
return false;
}
QDBusPendingReply<QVariantMap> reply = m_manager->GetProperties();
reply.waitForFinished();
if (reply.isError()) {
qDebug() << "Error getting manager properties.";
return false;
}
// Now we check if the adapter still exists (it might have been unplugged)
const QDBusArgument &paths = reply.value().value(QStringLiteral("Adapters")).value<QDBusArgument>();
paths.beginArray();
while (!paths.atEnd()) {
QDBusObjectPath path;
paths >> path;
// Check if the adapter exists
if (path.path() == m_adapterPath) {
paths.endArray();
return true;
}
}
paths.endArray();
return false;
}
bool QNearFieldManagerPrivateImpl::startTargetDetection()
{
if (!isAvailable())
return false;
// TODO define behavior when target detection is started again
if (m_adapter)
return false;
//qDebug() << "Constructing interface with path" << m_adapterPath;
m_adapter = new OrgNeardAdapterInterface(QStringLiteral("org.neard"), m_adapterPath,
QDBusConnection::systemBus(), this);
{
QDBusPendingReply<QVariantMap> reply = m_adapter->GetProperties();
reply.waitForFinished();
if (!reply.isError()) {
if (reply.value().value(QStringLiteral("Polling")) == true) {
//qDebug() << "Adapter" << m_adapterPath << "is busy";
return false; // Should we return false or true?
}
}
}
// Switch on the NFC adapter if it is not already
QDBusPendingReply<> reply = m_adapter->SetProperty(QStringLiteral("Powered"), QDBusVariant(true));
reply.waitForFinished();
//qDebug() << (reply.isError() ? "Error setting up adapter" : "Adapter powered on");
reply = m_adapter->StartPollLoop(QStringLiteral("Dual"));
reply.waitForFinished();
//qDebug() << (reply.isError() ? "Error when starting polling" : "Successfully started to poll");
// TagFound and TagLost DBus signals don't work
// connect(m_adapter, SIGNAL(TagFound(const QDBusObjectPath&)),
// this, SLOT(tagFound(const QDBusObjectPath&)));
// connect(m_adapter, SIGNAL(TagLost(const QDBusObjectPath&)),
// this, SLOT(tagFound(const QDBusObjectPath&)));
connect(m_adapter, SIGNAL(PropertyChanged(QString,QDBusVariant)),
this, SLOT(propertyChanged(QString,QDBusVariant)));
return true;
}
void QNearFieldManagerPrivateImpl::stopTargetDetection()
{
if (!isAvailable())
return;
QDBusPendingReply<> reply = m_adapter->StopPollLoop();
reply.waitForFinished();
// TODO Should we really power down the adapter?
reply = m_adapter->SetProperty(QStringLiteral("Powered"), QDBusVariant(false));
reply.waitForFinished();
delete m_adapter;
m_adapter = 0;
}
int QNearFieldManagerPrivateImpl::registerNdefMessageHandler(QObject *object, const QMetaMethod &method)
{
Q_UNUSED(object);
Q_UNUSED(method);
return 0;
}
int QNearFieldManagerPrivateImpl::registerNdefMessageHandler(const QNdefFilter &filter, QObject *object, const QMetaMethod &method)
{
Q_UNUSED(filter);
Q_UNUSED(object);
Q_UNUSED(method);
return -1;
}
bool QNearFieldManagerPrivateImpl::unregisterNdefMessageHandler(int handlerId)
{
Q_UNUSED(handlerId);
return false;
}
void QNearFieldManagerPrivateImpl::requestAccess(QNearFieldManager::TargetAccessModes accessModes)
{
Q_UNUSED(accessModes);
}
void QNearFieldManagerPrivateImpl::releaseAccess(QNearFieldManager::TargetAccessModes accessModes)
{
Q_UNUSED(accessModes);
}
void QNearFieldManagerPrivateImpl::tagFound(const QDBusObjectPath &path)
{
qDebug() << "Tag found" << path.path();
}
void QNearFieldManagerPrivateImpl::propertyChanged(QString property, QDBusVariant value)
{
qDebug() << "Property changed" << property;
// New device detected
if (property == QStringLiteral("Devices")) {
const QDBusArgument &devices = value.variant().value<QDBusArgument>();
QStringList devicesList;
devices.beginArray();
while (!devices.atEnd()) {
QDBusObjectPath path;
devices >> path;
devicesList.append(path.path());
qDebug() << "New device" << devicesList;
}
devices.endArray();
qDebug() << "Devices list changed" << devicesList;
} else if (property == QStringLiteral("Tags")) {
const QDBusArgument &tags = value.variant().value<QDBusArgument>();
QStringList tagList;
tags.beginArray();
while (!tags.atEnd()) {
QDBusObjectPath path;
tags >> path;
tagList.append(path.path());
qDebug() << "New tag" << path.path();
NearFieldTarget<QNearFieldTarget> *nfTag =
new NearFieldTarget<QNearFieldTarget>(this, path);
emit targetDetected(nfTag);
}
tags.endArray();
qDebug() << "Tag list changed" << tagList;
}
}
QT_END_NAMESPACE
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