diff options
Diffstat (limited to 'examples/nfc/annotatedurl/annotatedurl.cpp')
| -rw-r--r-- | examples/nfc/annotatedurl/annotatedurl.cpp | 156 |
1 files changed, 66 insertions, 90 deletions
diff --git a/examples/nfc/annotatedurl/annotatedurl.cpp b/examples/nfc/annotatedurl/annotatedurl.cpp index acd401f2..33d5109e 100644 --- a/examples/nfc/annotatedurl/annotatedurl.cpp +++ b/examples/nfc/annotatedurl/annotatedurl.cpp @@ -1,98 +1,41 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtNfc module. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2021 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "annotatedurl.h" -#include <QtNfc/qnearfieldmanager.h> -#include <QtNfc/qnearfieldtarget.h> -#include <QtNfc/qndefmessage.h> -#include <QtNfc/qndefrecord.h> -#include <QtNfc/qndefnfctextrecord.h> -#include <QtNfc/qndefnfcurirecord.h> - -#include <QtWidgets/QGridLayout> -#include <QtWidgets/QLabel> -#include <QtGui/QMouseEvent> -#include <QtGui/QDesktopServices> -#include <QtCore/QDebug> -#include <QtCore/QLocale> -#include <QtCore/QUrl> +#include <QDebug> +#include <QLocale> +#include <QUrl> -AnnotatedUrl::AnnotatedUrl(QObject *parent) -: QObject(parent) -{ - //! [QNearFieldManager register handler] - manager = new QNearFieldManager(this); - if (!manager->isAvailable()) { - qWarning() << "NFC not available"; - return; - } +#include <QDesktopServices> +#include <QEvent> - QNdefFilter filter; - filter.setOrderMatch(false); - filter.appendRecord<QNdefNfcTextRecord>(1, UINT_MAX); - filter.appendRecord<QNdefNfcUriRecord>(); - // type parameter cannot specify substring so filter for "image/" below - filter.appendRecord(QNdefRecord::Mime, QByteArray(), 0, 1); +#include <QNdefMessage> +#include <QNdefNfcTextRecord> +#include <QNdefNfcUriRecord> +#include <QNdefRecord> +#include <QNearFieldManager> +#include <QNearFieldTarget> - int result = manager->registerNdefMessageHandler(filter, this, - SLOT(handleMessage(QNdefMessage,QNearFieldTarget*))); - //! [QNearFieldManager register handler] +#include <QGridLayout> +#include <QLabel> - if (result < 0) - qWarning() << "Platform does not support NDEF message handler registration"; - - manager->startTargetDetection(); +AnnotatedUrl::AnnotatedUrl(QObject *parent) + : QObject(parent), + manager(new QNearFieldManager(this)) +{ connect(manager, &QNearFieldManager::targetDetected, this, &AnnotatedUrl::targetDetected); connect(manager, &QNearFieldManager::targetLost, this, &AnnotatedUrl::targetLost); + connect(manager, &QNearFieldManager::adapterStateChanged, + this, &AnnotatedUrl::handleAdapterStateChange); + +//! [populateFilter] + messageFilter.setOrderMatch(false); + messageFilter.appendRecord<QNdefNfcTextRecord>(1, 100); + messageFilter.appendRecord<QNdefNfcUriRecord>(1, 1); + messageFilter.appendRecord(QNdefRecord::Mime, "", 0, 1); +//! [populateFilter] } AnnotatedUrl::~AnnotatedUrl() @@ -100,6 +43,18 @@ AnnotatedUrl::~AnnotatedUrl() } +void AnnotatedUrl::startDetection() +{ + if (!manager->isEnabled()) { + qWarning() << "NFC not enabled"; + emit nfcStateChanged(false); + return; + } + + if (manager->startTargetDetection(QNearFieldTarget::NdefAccess)) + emit nfcStateChanged(true); +} + void AnnotatedUrl::targetDetected(QNearFieldTarget *target) { if (!target) @@ -107,6 +62,8 @@ void AnnotatedUrl::targetDetected(QNearFieldTarget *target) connect(target, &QNearFieldTarget::ndefMessageRead, this, &AnnotatedUrl::handlePolledNdefMessage); + connect(target, &QNearFieldTarget::error, this, + [this]() { emit tagError("Tag read error"); }); target->readNdefMessages(); } @@ -122,12 +79,31 @@ void AnnotatedUrl::handlePolledNdefMessage(QNdefMessage message) handleMessage(message, target); } +//! [handleAdapterState] +void AnnotatedUrl::handleAdapterStateChange(QNearFieldManager::AdapterState state) +{ + if (state == QNearFieldManager::AdapterState::Online) { + startDetection(); + } else if (state == QNearFieldManager::AdapterState::Offline) { + manager->stopTargetDetection(); + emit nfcStateChanged(false); + } +} +//! [handleAdapterState] + //! [handleMessage 1] void AnnotatedUrl::handleMessage(const QNdefMessage &message, QNearFieldTarget *target) { //! [handleMessage 1] Q_UNUSED(target); +//! [handleMessage 2] + if (!messageFilter.match(message)) { + emit tagError("Invalid message format"); + return; + } +//! [handleMessage 2] + enum { MatchedNone, MatchedFirst, @@ -142,14 +118,14 @@ void AnnotatedUrl::handleMessage(const QNdefMessage &message, QNearFieldTarget * QUrl url; QPixmap pixmap; -//! [handleMessage 2] +//! [handleMessage 3] for (const QNdefRecord &record : message) { if (record.isRecordType<QNdefNfcTextRecord>()) { QNdefNfcTextRecord textRecord(record); title = textRecord.text(); QLocale locale(textRecord.locale()); -//! [handleMessage 2] +//! [handleMessage 3] // already found best match if (bestMatch == MatchedLanguageAndCountry) { // do nothing @@ -163,7 +139,7 @@ void AnnotatedUrl::handleMessage(const QNdefMessage &message, QNearFieldTarget * } else if (bestMatch == MatchedNone) { bestMatch = MatchedFirst; } -//! [handleMessage 3] +//! [handleMessage 4] } else if (record.isRecordType<QNdefNfcUriRecord>()) { QNdefNfcUriRecord uriRecord(record); @@ -172,10 +148,10 @@ void AnnotatedUrl::handleMessage(const QNdefMessage &message, QNearFieldTarget * record.type().startsWith("image/")) { pixmap = QPixmap::fromImage(QImage::fromData(record.payload())); } -//! [handleMessage 3] //! [handleMessage 4] +//! [handleMessage 5] } emit annotatedUrl(url, title, pixmap); } -//! [handleMessage 4] +//! [handleMessage 5] |