| /**************************************************************************** |
| ** |
| ** 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." |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| #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> |
| |
| AnnotatedUrl::AnnotatedUrl(QObject *parent) |
| : QObject(parent) |
| { |
| //! [QNearFieldManager register handler] |
| manager = new QNearFieldManager(this); |
| if (!manager->isAvailable()) { |
| qWarning() << "NFC not available"; |
| return; |
| } |
| |
| 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); |
| |
| int result = manager->registerNdefMessageHandler(filter, this, |
| SLOT(handleMessage(QNdefMessage,QNearFieldTarget*))); |
| //! [QNearFieldManager register handler] |
| |
| if (result < 0) |
| qWarning() << "Platform does not support NDEF message handler registration"; |
| |
| manager->startTargetDetection(); |
| connect(manager, &QNearFieldManager::targetDetected, |
| this, &AnnotatedUrl::targetDetected); |
| connect(manager, &QNearFieldManager::targetLost, |
| this, &AnnotatedUrl::targetLost); |
| } |
| |
| AnnotatedUrl::~AnnotatedUrl() |
| { |
| |
| } |
| |
| void AnnotatedUrl::targetDetected(QNearFieldTarget *target) |
| { |
| if (!target) |
| return; |
| |
| connect(target, &QNearFieldTarget::ndefMessageRead, |
| this, &AnnotatedUrl::handlePolledNdefMessage); |
| target->readNdefMessages(); |
| } |
| |
| void AnnotatedUrl::targetLost(QNearFieldTarget *target) |
| { |
| if (target) |
| target->deleteLater(); |
| } |
| |
| void AnnotatedUrl::handlePolledNdefMessage(QNdefMessage message) |
| { |
| QNearFieldTarget *target = qobject_cast<QNearFieldTarget *>(sender()); |
| handleMessage(message, target); |
| } |
| |
| //! [handleMessage 1] |
| void AnnotatedUrl::handleMessage(const QNdefMessage &message, QNearFieldTarget *target) |
| { |
| //! [handleMessage 1] |
| Q_UNUSED(target); |
| |
| enum { |
| MatchedNone, |
| MatchedFirst, |
| MatchedEnglish, |
| MatchedLanguage, |
| MatchedLanguageAndCountry |
| } bestMatch = MatchedNone; |
| |
| QLocale defaultLocale; |
| |
| QString title; |
| QUrl url; |
| QPixmap pixmap; |
| |
| //! [handleMessage 2] |
| for (const QNdefRecord &record : message) { |
| if (record.isRecordType<QNdefNfcTextRecord>()) { |
| QNdefNfcTextRecord textRecord(record); |
| |
| title = textRecord.text(); |
| QLocale locale(textRecord.locale()); |
| //! [handleMessage 2] |
| // already found best match |
| if (bestMatch == MatchedLanguageAndCountry) { |
| // do nothing |
| } else if (bestMatch <= MatchedLanguage && locale == defaultLocale) { |
| bestMatch = MatchedLanguageAndCountry; |
| } else if (bestMatch <= MatchedEnglish && |
| locale.language() == defaultLocale.language()) { |
| bestMatch = MatchedLanguage; |
| } else if (bestMatch <= MatchedFirst && locale.language() == QLocale::English) { |
| bestMatch = MatchedEnglish; |
| } else if (bestMatch == MatchedNone) { |
| bestMatch = MatchedFirst; |
| } |
| //! [handleMessage 3] |
| } else if (record.isRecordType<QNdefNfcUriRecord>()) { |
| QNdefNfcUriRecord uriRecord(record); |
| |
| url = uriRecord.uri(); |
| } else if (record.typeNameFormat() == QNdefRecord::Mime && |
| record.type().startsWith("image/")) { |
| pixmap = QPixmap::fromImage(QImage::fromData(record.payload())); |
| } |
| //! [handleMessage 3] |
| //! [handleMessage 4] |
| } |
| |
| emit annotatedUrl(url, title, pixmap); |
| } |
| //! [handleMessage 4] |