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Diffstat (limited to 'src/nfc/qnearfieldmanagervirtualbase.cpp')
| -rw-r--r-- | src/nfc/qnearfieldmanagervirtualbase.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/nfc/qnearfieldmanagervirtualbase.cpp b/src/nfc/qnearfieldmanagervirtualbase.cpp new file mode 100644 index 00000000..84b88f2f --- /dev/null +++ b/src/nfc/qnearfieldmanagervirtualbase.cpp @@ -0,0 +1,215 @@ +/**************************************************************************** +** +** 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 "qnearfieldmanagervirtualbase_p.h" +#include "qndefmessage.h" +#include "qtlv_p.h" + +static inline bool matchesTarget(QNearFieldTarget::Type type, + const QList<QNearFieldTarget::Type> &types) +{ + return types.contains(type) || types.contains(QNearFieldTarget::AnyTarget); +} + +QNearFieldManagerPrivateVirtualBase::QNearFieldManagerPrivateVirtualBase() +{ +} + +QNearFieldManagerPrivateVirtualBase::~QNearFieldManagerPrivateVirtualBase() +{ +} + +bool QNearFieldManagerPrivateVirtualBase::startTargetDetection(const QList<QNearFieldTarget::Type> &targetTypes) +{ + m_detectTargetTypes = targetTypes; + return true; +} + +void QNearFieldManagerPrivateVirtualBase::stopTargetDetection() +{ + m_detectTargetTypes.clear(); +} + +int QNearFieldManagerPrivateVirtualBase::getFreeId() +{ + if (!m_freeIds.isEmpty()) + return m_freeIds.takeFirst(); + + m_registeredHandlers.append(Callback()); + return m_registeredHandlers.count() - 1; +} + +int QNearFieldManagerPrivateVirtualBase::registerNdefMessageHandler(QObject *object, + const QMetaMethod &method) +{ + int id = getFreeId(); + + Callback &callback = m_registeredHandlers[id]; + + callback.filter = QNdefFilter(); + callback.object = object; + callback.method = method; + + return id; +} + +int QNearFieldManagerPrivateVirtualBase::registerNdefMessageHandler(const QNdefFilter &filter, + QObject *object, + const QMetaMethod &method) +{ + int id = getFreeId(); + + Callback &callback = m_registeredHandlers[id]; + + callback.filter = filter; + callback.object = object; + callback.method = method; + + return id; +} + +bool QNearFieldManagerPrivateVirtualBase::unregisterNdefMessageHandler(int id) +{ + if (id < 0 || id >= m_registeredHandlers.count()) + return false; + + m_freeIds.append(id); + + while (m_freeIds.contains(m_registeredHandlers.count() - 1)) { + m_freeIds.removeAll(m_registeredHandlers.count() - 1); + m_registeredHandlers.removeLast(); + } + + return true; +} + +void QNearFieldManagerPrivateVirtualBase::targetActivated(QNearFieldTarget *target) +{ + if (matchesTarget(target->type(), m_detectTargetTypes)) + emit targetDetected(target); + + if (target->hasNdefMessage()) { + QTlvReader reader(target); + while (!reader.atEnd()) { + if (!reader.readNext()) { + if (!target->waitForRequestCompleted(reader.requestId())) + break; + else + continue; + } + + // NDEF Message TLV + if (reader.tag() == 0x03) + ndefReceived(QNdefMessage::fromByteArray(reader.data()), target); + } + } +} + +void QNearFieldManagerPrivateVirtualBase::targetDeactivated(QNearFieldTarget *target) +{ + emit targetLost(target); + QMetaObject::invokeMethod(target, "disconnected"); +} + +struct VerifyRecord +{ + QNdefFilter::Record filterRecord; + unsigned int count; +}; + +void QNearFieldManagerPrivateVirtualBase::ndefReceived(const QNdefMessage &message, + QNearFieldTarget *target) +{ + for (int i = 0; i < m_registeredHandlers.count(); ++i) { + if (m_freeIds.contains(i)) + continue; + + Callback &callback = m_registeredHandlers[i]; + + bool matched = true; + + QList<VerifyRecord> filterRecords; + for (int j = 0; j < callback.filter.recordCount(); ++j) { + VerifyRecord vr; + vr.count = 0; + vr.filterRecord = callback.filter.recordAt(j); + + filterRecords.append(vr); + } + + foreach (const QNdefRecord &record, message) { + for (int j = 0; matched && (j < filterRecords.count()); ++j) { + VerifyRecord &vr = filterRecords[j]; + + if (vr.filterRecord.typeNameFormat == record.typeNameFormat() && + vr.filterRecord.type == record.type()) { + ++vr.count; + break; + } else { + if (callback.filter.orderMatch()) { + if (vr.filterRecord.minimum <= vr.count && + vr.count <= vr.filterRecord.maximum) { + continue; + } else { + matched = false; + } + } + } + } + } + + for (int j = 0; matched && (j < filterRecords.count()); ++j) { + const VerifyRecord &vr = filterRecords.at(j); + + if (vr.filterRecord.minimum <= vr.count && vr.count <= vr.filterRecord.maximum) + continue; + else + matched = false; + } + + if (matched) { + callback.method.invoke(callback.object, Q_ARG(QNdefMessage, message), + Q_ARG(QNearFieldTarget *, target)); + } + } +} + +#include "moc_qnearfieldmanagervirtualbase_p.cpp" |