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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the QtNfc module of the Qt Toolkit. |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
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| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "qnearfieldmanagervirtualbase_p.h" |
| #include "qndefmessage.h" |
| #include "qtlv_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| //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() |
| { |
| return true; |
| } |
| |
| void QNearFieldManagerPrivateVirtualBase::stopTargetDetection() |
| { |
| } |
| |
| 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); |
| } |
| |
| for (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.filterRecord.type.isEmpty()) ) { |
| ++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)); |
| } |
| } |
| } |
| |
| QT_END_NAMESPACE |