Initial commit.

From qt5connectivity.tar.gz, md5 317c149d6f8c07d09632353188582834

1 files changed, 300 insertions, 0 deletions

diff --git a/src/nfc/qnearfieldtarget_emulator.cpp b/src/nfc/qnearfieldtarget_emulator.cpp
new file mode 100644
index 00000000..2a05a6e3
--- /dev/null
+++ b/src/nfc/qnearfieldtarget_emulator.cpp
@@ -0,0 +1,300 @@
+/****************************************************************************
+**
+** 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 "qnearfieldtarget_emulator_p.h"
+#include "qnearfieldtarget_p.h"
+
+#include <QtCore/QDirIterator>
+#include <QtCore/QSettings>
+#include <QtCore/QMutex>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDateTime>
+
+#include <QtCore/QDebug>
+
+static QMutex tagMutex;
+static QMap<TagBase *, bool> tagMap;
+static TagActivator tagActivator;
+
+
+TagType1::TagType1(TagBase *tag, QObject *parent)
+:   QNearFieldTagType1(parent), m_tag(tag)
+{
+}
+
+TagType1::~TagType1()
+{
+}
+
+QByteArray TagType1::uid() const
+{
+    QMutexLocker locker(&tagMutex);
+
+    return m_tag->uid();
+}
+
+QNearFieldTarget::AccessMethods TagType1::accessMethods() const
+{
+    return NdefAccess | TagTypeSpecificAccess;
+}
+
+QNearFieldTarget::RequestId TagType1::sendCommand(const QByteArray &command)
+{
+    QMutexLocker locker(&tagMutex);
+
+    RequestId id(new RequestIdPrivate);
+
+    // tag not in proximity
+    if (!tagMap.value(m_tag)) {
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                                  Q_ARG(QNearFieldTarget::Error, TargetOutOfRangeError),
+                                  Q_ARG(QNearFieldTarget::RequestId, id));
+        return id;
+    }
+
+    quint16 crc = qNfcChecksum(command.constData(), command.length());
+
+    QByteArray response = m_tag->processCommand(command + char(crc & 0xff) + char(crc >> 8));
+
+    if (response.isEmpty()) {
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                                  Q_ARG(QNearFieldTarget::Error, NoResponseError),
+                                  Q_ARG(QNearFieldTarget::RequestId, id));
+        return id;
+    }
+
+    // check crc
+    if (qNfcChecksum(response.constData(), response.length()) != 0) {
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                                  Q_ARG(QNearFieldTarget::Error, ChecksumMismatchError),
+                                  Q_ARG(QNearFieldTarget::RequestId, id));
+        return id;
+    }
+
+    response.chop(2);
+
+    QMetaObject::invokeMethod(this, "handleResponse", Qt::QueuedConnection,
+                              Q_ARG(QNearFieldTarget::RequestId, id), Q_ARG(QByteArray, response));
+
+    return id;
+}
+
+bool TagType1::waitForRequestCompleted(const RequestId &id, int msecs)
+{
+    QCoreApplication::sendPostedEvents(this, QEvent::MetaCall);
+
+    return QNearFieldTagType1::waitForRequestCompleted(id, msecs);
+}
+
+
+TagType2::TagType2(TagBase *tag, QObject *parent)
+:   QNearFieldTagType2(parent), m_tag(tag)
+{
+}
+
+TagType2::~TagType2()
+{
+}
+
+QByteArray TagType2::uid() const
+{
+    QMutexLocker locker(&tagMutex);
+
+    return m_tag->uid();
+}
+
+QNearFieldTarget::AccessMethods TagType2::accessMethods() const
+{
+    return NdefAccess | TagTypeSpecificAccess;
+}
+
+QNearFieldTarget::RequestId TagType2::sendCommand(const QByteArray &command)
+{
+    QMutexLocker locker(&tagMutex);
+
+    RequestId id(new RequestIdPrivate);
+
+    // tag not in proximity
+    if (!tagMap.value(m_tag)) {
+        QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                                  Q_ARG(QNearFieldTarget::Error, TargetOutOfRangeError),
+                                  Q_ARG(QNearFieldTarget::RequestId, id));
+        return id;
+    }
+
+    quint16 crc = qNfcChecksum(command.constData(), command.length());
+
+    QByteArray response = m_tag->processCommand(command + char(crc & 0xff) + char(crc >> 8));
+
+    if (response.isEmpty())
+        return id;
+
+    if (response.length() > 1) {
+        // check crc
+        if (qNfcChecksum(response.constData(), response.length()) != 0) {
+            QMetaObject::invokeMethod(this, "error", Qt::QueuedConnection,
+                                      Q_ARG(QNearFieldTarget::Error, ChecksumMismatchError),
+                                      Q_ARG(QNearFieldTarget::RequestId, id));
+            return id;
+        }
+
+        response.chop(2);
+    }
+
+    QMetaObject::invokeMethod(this, "handleResponse", Qt::QueuedConnection,
+                              Q_ARG(QNearFieldTarget::RequestId, id), Q_ARG(QByteArray, response));
+
+    return id;
+}
+
+bool TagType2::waitForRequestCompleted(const RequestId &id, int msecs)
+{
+    QCoreApplication::sendPostedEvents(this, QEvent::MetaCall);
+
+    return QNearFieldTagType2::waitForRequestCompleted(id, msecs);
+}
+
+
+TagActivator::TagActivator()
+:   timerId(-1)
+{
+    qRegisterMetaType<QNearFieldTarget::Error>("QNearFieldTarget::Error");
+}
+
+TagActivator::~TagActivator()
+{
+    QMutexLocker locker(&tagMutex);
+    qDeleteAll(tagMap.keys());
+    tagMap.clear();
+}
+
+void TagActivator::initialize()
+{
+    QMutexLocker locker(&tagMutex);
+
+    if (!tagMap.isEmpty())
+        return;
+
+    QDirIterator nfcTargets(QDir::currentPath(), QStringList(QLatin1String("*.nfc")), QDir::Files);
+    while (nfcTargets.hasNext()) {
+        const QString targetFilename = nfcTargets.next();
+
+        QSettings target(targetFilename, QSettings::IniFormat);
+
+        target.beginGroup(QLatin1String("Target"));
+
+        const QString tagType = target.value(QLatin1String("Type")).toString();
+
+        target.endGroup();
+
+        if (tagType == QLatin1String("TagType1")) {
+            qDebug() << "loading" << targetFilename << "as NfcTagType1";
+            NfcTagType1 *tag = new NfcTagType1;
+            tag->load(&target);
+
+            tagMap.insert(tag, false);
+        } else if (tagType == QLatin1String("TagType2")) {
+            qDebug() << "loading" << targetFilename << "as NfcTagType2";
+            NfcTagType2 *tag = new NfcTagType2;
+            tag->load(&target);
+
+            tagMap.insert(tag, false);
+        } else {
+            qWarning("Unknown tag type %s\n", qPrintable(tagType));
+        }
+    }
+
+    m_current = tagMap.end();
+
+    timerId = startTimer(1000);
+}
+
+void TagActivator::reset()
+{
+    QMutexLocker locker(&tagMutex);
+
+    killTimer(timerId);
+    timerId = -1;
+
+    qDeleteAll(tagMap.keys());
+    tagMap.clear();
+}
+
+TagActivator *TagActivator::instance()
+{
+    return &tagActivator;
+}
+
+void TagActivator::timerEvent(QTimerEvent *e)
+{
+    Q_UNUSED(e);
+
+    tagMutex.lock();
+
+    if (m_current != tagMap.end()) {
+        if (m_current.key()->lastAccessTime() + 1500 > QDateTime::currentMSecsSinceEpoch()) {
+            tagMutex.unlock();
+            return;
+        }
+
+        *m_current = false;
+
+        tagMutex.unlock();
+        emit tagDeactivated(m_current.key());
+        tagMutex.lock();
+    }
+
+    ++m_current;
+    if (m_current == tagMap.end())
+        m_current = tagMap.begin();
+
+    if (m_current != tagMap.end()) {
+        *m_current = true;
+
+        tagMutex.unlock();
+
+        emit tagActivated(m_current.key());
+        tagMutex.lock();
+    }
+
+    tagMutex.unlock();
+}
+