diff options
Diffstat (limited to 'src/imports/nfc/qdeclarativenearfield.cpp')
| -rw-r--r-- | src/imports/nfc/qdeclarativenearfield.cpp | 117 |
1 files changed, 104 insertions, 13 deletions
diff --git a/src/imports/nfc/qdeclarativenearfield.cpp b/src/imports/nfc/qdeclarativenearfield.cpp index 30d020b9..3e45047b 100644 --- a/src/imports/nfc/qdeclarativenearfield.cpp +++ b/src/imports/nfc/qdeclarativenearfield.cpp @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtNfc module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** 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. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** 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 +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -41,6 +41,8 @@ #include <qndefnfctextrecord.h> #include <qndefnfcurirecord.h> +#include <QtNfc/QNearFieldTarget> + /*! \qmltype NearField \instantiates QDeclarativeNearField @@ -61,6 +63,9 @@ and \l orderMatch properties to match the required NDEF messages. Once an NDEF message is successfully read from a tag the \l messageRecords property is updated. + \note For platforms using neard, filtering is currently not implemented. For more information + on neard see \l QNearFieldManager. + \snippet doc_src_qtnfc.qml QML register for messages */ @@ -77,6 +82,8 @@ set to NDEF messages which match the filter. If no filter is set, a message handler for all NDEF messages will be registered. + \note Filtering is not supported when using neard. + \l QNearFieldManager::registerNdefMessageHandler() */ @@ -84,13 +91,47 @@ \qmlproperty bool NearField::orderMatch This property indicates whether the order of records should be taken into account when matching - messages. + messages. This is not supported when using neard. +*/ + +/*! + \qmlproperty bool NearField::polling + \since 5.5 + + This property indicates if the underlying adapter is currently in polling state. If set to \c true + the adapter will start polling and stop polling if set to \c false. + + \note On platforms using neard, the adapter will stop polling as soon as a tag has been detected. + For more information see \l QNearFieldManager. +*/ + +/*! + \qmlsignal NearField::tagFound() + \since 5.5 + + This signal will be emitted when a tag has been detected. +*/ + +/*! + \qmlsignal NearField::tagRemoved() + \since 5.5 + + This signal will be emitted when a tag has been removed. */ QDeclarativeNearField::QDeclarativeNearField(QObject *parent) -: QObject(parent), m_orderMatch(false), m_componentCompleted(false), m_messageUpdating(false), - m_manager(0), m_messageHandlerId(-1) + : QObject(parent), + m_orderMatch(false), + m_componentCompleted(false), + m_messageUpdating(false), + m_manager(new QNearFieldManager(this)), + m_messageHandlerId(-1), + m_polling(false) { + connect(m_manager, SIGNAL(targetDetected(QNearFieldTarget*)), + this, SLOT(_q_handleTargetDetected(QNearFieldTarget*))); + connect(m_manager, SIGNAL(targetLost(QNearFieldTarget*)), + this, SLOT(_q_handleTargetLost(QNearFieldTarget*))); } QQmlListProperty<QQmlNdefRecord> QDeclarativeNearField::messageRecords() @@ -133,11 +174,30 @@ void QDeclarativeNearField::componentComplete() registerMessageHandler(); } -void QDeclarativeNearField::registerMessageHandler() +bool QDeclarativeNearField::polling() const { - if (!m_manager) - m_manager = new QNearFieldManager(this); + return m_polling; +} +void QDeclarativeNearField::setPolling(bool on) +{ + if (m_polling == on) + return; + + if (on) { + if (m_manager->startTargetDetection()) { + m_polling = true; + emit pollingChanged(); + } + } else { + m_manager->stopTargetDetection(); + m_polling = false; + emit pollingChanged(); + } +} + +void QDeclarativeNearField::registerMessageHandler() +{ if (m_messageHandlerId != -1) m_manager->unregisterNdefMessageHandler(m_messageHandlerId); @@ -152,6 +212,12 @@ void QDeclarativeNearField::registerMessageHandler() } m_messageHandlerId = m_manager->registerNdefMessageHandler(ndefFilter, this, SLOT(_q_handleNdefMessage(QNdefMessage))); + + // FIXME: if a message handler has been registered we just assume that constant polling is done + if (m_messageHandlerId >= 0) { + m_polling = true; + emit pollingChanged(); + } } void QDeclarativeNearField::_q_handleNdefMessage(const QNdefMessage &message) @@ -170,6 +236,31 @@ void QDeclarativeNearField::_q_handleNdefMessage(const QNdefMessage &message) emit messageRecordsChanged(); } +void QDeclarativeNearField::_q_handleTargetLost(QNearFieldTarget *target) +{ + Q_UNUSED(target); + // FIXME: only notify that polling stopped when there is no registered message handler + if (m_messageHandlerId == -1) { + m_polling = false; + emit pollingChanged(); + } + + emit tagRemoved(); +} + +void QDeclarativeNearField::_q_handleTargetDetected(QNearFieldTarget *target) +{ + Q_UNUSED(target); + + if (m_messageHandlerId == -1) { + connect(target, SIGNAL(ndefMessageRead(QNdefMessage)), + this, SLOT(_q_handleNdefMessage(QNdefMessage))); + target->readNdefMessages(); + } + + emit tagFound(); +} + void QDeclarativeNearField::append_messageRecord(QQmlListProperty<QQmlNdefRecord> *list, QQmlNdefRecord *record) { |