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// Copyright (C) 2017 Governikus GmbH & Co. K
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qnearfieldtarget_p.h"
#include <QtCore/QCoreApplication>
#include <QtCore/QElapsedTimer>
#include <QtCore/QPointer>
QT_BEGIN_NAMESPACE
QNearFieldTargetPrivate::QNearFieldTargetPrivate(QObject *parent)
: QObject(parent)
, q_ptr(nullptr)
{
}
QByteArray QNearFieldTargetPrivate::uid() const
{
return QByteArray();
}
QNearFieldTarget::Type QNearFieldTargetPrivate::type() const
{
return QNearFieldTarget::Type::ProprietaryTag;
}
QNearFieldTarget::AccessMethods QNearFieldTargetPrivate::accessMethods() const
{
return QNearFieldTarget::AccessMethod::UnknownAccess;
}
bool QNearFieldTargetPrivate::disconnect()
{
return false;
}
// NdefAccess
bool QNearFieldTargetPrivate::hasNdefMessage()
{
return false;
}
QNearFieldTarget::RequestId QNearFieldTargetPrivate::readNdefMessages()
{
const QNearFieldTarget::RequestId id;
Q_EMIT error(QNearFieldTarget::UnsupportedError, id);
return id;
}
QNearFieldTarget::RequestId
QNearFieldTargetPrivate::writeNdefMessages(const QList<QNdefMessage> &messages)
{
Q_UNUSED(messages);
const QNearFieldTarget::RequestId id;
Q_EMIT error(QNearFieldTarget::UnsupportedError, id);
return id;
}
// TagTypeSpecificAccess
int QNearFieldTargetPrivate::maxCommandLength() const
{
return 0;
}
QNearFieldTarget::RequestId QNearFieldTargetPrivate::sendCommand(const QByteArray &command)
{
Q_UNUSED(command);
const QNearFieldTarget::RequestId id;
Q_EMIT error(QNearFieldTarget::UnsupportedError, id);
return id;
}
bool QNearFieldTargetPrivate::waitForRequestCompleted(const QNearFieldTarget::RequestId &id,
int msecs)
{
QElapsedTimer timer;
timer.start();
const QPointer<QNearFieldTargetPrivate> weakThis = this;
do {
if (!weakThis)
return false;
if (m_decodedResponses.contains(id))
return true;
else
QCoreApplication::processEvents(QEventLoop::WaitForMoreEvents, 1);
} while (timer.elapsed() <= msecs);
reportError(QNearFieldTarget::TimeoutError, id);
return false;
}
QVariant QNearFieldTargetPrivate::requestResponse(const QNearFieldTarget::RequestId &id) const
{
return m_decodedResponses.value(id);
}
void QNearFieldTargetPrivate::setResponseForRequest(const QNearFieldTarget::RequestId &id,
const QVariant &response,
bool emitRequestCompleted)
{
for (auto i = m_decodedResponses.begin(), end = m_decodedResponses.end(); i != end; /* erasing */) {
// no more external references
if (i.key().refCount() == 1)
i = m_decodedResponses.erase(i);
else
++i;
}
m_decodedResponses.insert(id, response);
if (emitRequestCompleted)
Q_EMIT requestCompleted(id);
}
void QNearFieldTargetPrivate::reportError(QNearFieldTarget::Error error,
const QNearFieldTarget::RequestId &id)
{
setResponseForRequest(id, QVariant(), false);
QMetaObject::invokeMethod(this, [this, error, id]() {
Q_EMIT this->error(error, id);
}, Qt::QueuedConnection);
}
QT_END_NAMESPACE
#include "moc_qnearfieldtarget_p.cpp"