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| ** 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 "qqnxnavigatoreventnotifier.h" |
| |
| #include "qqnxnavigatoreventhandler.h" |
| |
| #include <QtCore/QByteArray> |
| #include <QtCore/QDebug> |
| #include <QtCore/QList> |
| #include <QtCore/QSocketNotifier> |
| #include <QtCore/private/qcore_unix_p.h> |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #if defined(QQNXNAVIGATOREVENTNOTIFIER_DEBUG) |
| #define qNavigatorEventNotifierDebug qDebug |
| #else |
| #define qNavigatorEventNotifierDebug QT_NO_QDEBUG_MACRO |
| #endif |
| |
| static const char *navigatorControlPath = "/pps/services/navigator/control"; |
| static const int ppsBufferSize = 4096; |
| |
| QT_BEGIN_NAMESPACE |
| |
| QQnxNavigatorEventNotifier::QQnxNavigatorEventNotifier(QQnxNavigatorEventHandler *eventHandler, QObject *parent) |
| : QObject(parent), |
| m_fd(-1), |
| m_readNotifier(0), |
| m_eventHandler(eventHandler) |
| { |
| } |
| |
| QQnxNavigatorEventNotifier::~QQnxNavigatorEventNotifier() |
| { |
| delete m_readNotifier; |
| |
| // close connection to navigator |
| if (m_fd != -1) |
| close(m_fd); |
| |
| qNavigatorEventNotifierDebug("navigator event notifier stopped"); |
| } |
| |
| void QQnxNavigatorEventNotifier::start() |
| { |
| qNavigatorEventNotifierDebug("navigator event notifier started"); |
| |
| // open connection to navigator |
| errno = 0; |
| m_fd = open(navigatorControlPath, O_RDWR); |
| if (m_fd == -1) { |
| qNavigatorEventNotifierDebug("failed to open navigator pps: %s", strerror(errno)); |
| return; |
| } |
| |
| m_readNotifier = new QSocketNotifier(m_fd, QSocketNotifier::Read); |
| connect(m_readNotifier, SIGNAL(activated(int)), this, SLOT(readData())); |
| } |
| |
| void QQnxNavigatorEventNotifier::parsePPS(const QByteArray &ppsData, QByteArray &msg, QByteArray &dat, QByteArray &id) |
| { |
| qNavigatorEventNotifierDebug() << "data=" << ppsData; |
| |
| // tokenize pps data into lines |
| QList<QByteArray> lines = ppsData.split('\n'); |
| |
| // validate pps object |
| if (Q_UNLIKELY(lines.empty() || lines.at(0) != "@control")) |
| qFatal("QQNX: unrecognized pps object, data=%s", ppsData.constData()); |
| |
| // parse pps object attributes and extract values |
| for (int i = 1; i < lines.size(); ++i) { |
| |
| // tokenize current attribute |
| const QByteArray &attr = lines.at(i); |
| qNavigatorEventNotifierDebug() << "attr=" << attr; |
| |
| int firstColon = attr.indexOf(':'); |
| if (firstColon == -1) { |
| // abort - malformed attribute |
| continue; |
| } |
| |
| int secondColon = attr.indexOf(':', firstColon + 1); |
| if (secondColon == -1) { |
| // abort - malformed attribute |
| continue; |
| } |
| |
| QByteArray key = attr.left(firstColon); |
| QByteArray value = attr.mid(secondColon + 1); |
| |
| qNavigatorEventNotifierDebug() << "key=" << key; |
| qNavigatorEventNotifierDebug() << "val=" << value; |
| |
| // save attribute value |
| if (key == "msg") |
| msg = value; |
| else if (key == "dat") |
| dat = value; |
| else if (key == "id") |
| id = value; |
| else |
| qFatal("QQNX: unrecognized pps attribute, attr=%s", key.constData()); |
| } |
| } |
| |
| void QQnxNavigatorEventNotifier::replyPPS(const QByteArray &res, const QByteArray &id, const QByteArray &dat) |
| { |
| // construct pps message |
| QByteArray ppsData = "res::"; |
| ppsData += res; |
| ppsData += "\nid::"; |
| ppsData += id; |
| if (!dat.isEmpty()) { |
| ppsData += "\ndat::"; |
| ppsData += dat; |
| } |
| ppsData += "\n"; |
| |
| qNavigatorEventNotifierDebug() << "reply=" << ppsData; |
| |
| // send pps message to navigator |
| errno = 0; |
| int bytes = write(m_fd, ppsData.constData(), ppsData.size()); |
| if (Q_UNLIKELY(bytes == -1)) |
| qFatal("QQNX: failed to write navigator pps, errno=%d", errno); |
| } |
| |
| void QQnxNavigatorEventNotifier::handleMessage(const QByteArray &msg, const QByteArray &dat, const QByteArray &id) |
| { |
| qNavigatorEventNotifierDebug() << "msg=" << msg << ", dat=" << dat << ", id=" << id; |
| |
| // check message type |
| if (msg == "orientationCheck") { |
| const bool response = m_eventHandler->handleOrientationCheck(dat.toInt()); |
| |
| // reply to navigator that (any) orientation is acceptable |
| replyPPS(msg, id, response ? "true" : "false"); |
| } else if (msg == "orientation") { |
| m_eventHandler->handleOrientationChange(dat.toInt()); |
| replyPPS(msg, id, ""); |
| } else if (msg == "SWIPE_DOWN") { |
| m_eventHandler->handleSwipeDown(); |
| } else if (msg == "exit") { |
| m_eventHandler->handleExit(); |
| } else if (msg == "windowActive") { |
| m_eventHandler->handleWindowGroupActivated(dat); |
| } else if (msg == "windowInactive") { |
| m_eventHandler->handleWindowGroupDeactivated(dat); |
| } |
| } |
| |
| void QQnxNavigatorEventNotifier::readData() |
| { |
| qNavigatorEventNotifierDebug("reading navigator data"); |
| |
| // allocate buffer for pps data |
| char buffer[ppsBufferSize]; |
| |
| // attempt to read pps data |
| errno = 0; |
| int bytes = qt_safe_read(m_fd, buffer, ppsBufferSize - 1); |
| if (Q_UNLIKELY(bytes == -1)) |
| qFatal("QQNX: failed to read navigator pps, errno=%d", errno); |
| |
| // check if pps data was received |
| if (bytes > 0) { |
| |
| // ensure data is null terminated |
| buffer[bytes] = '\0'; |
| |
| // process received message |
| QByteArray ppsData(buffer); |
| QByteArray msg; |
| QByteArray dat; |
| QByteArray id; |
| parsePPS(ppsData, msg, dat, id); |
| handleMessage(msg, dat, id); |
| } |
| } |
| |
| QT_END_NAMESPACE |