/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QtGui module of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** 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 | |
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** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
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** | |
** 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: | |
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** | |
** 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. | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#include <stdlib.h> | |
#include <sys/types.h> | |
#include <sys/stat.h> | |
#include <unistd.h> | |
#include <fcntl.h> | |
#include <errno.h> | |
#include <qvfbhdr.h> | |
#include <qkbdvfb_qws.h> | |
#ifndef QT_NO_QWS_KEYBOARD | |
#ifndef QT_NO_QWS_KBD_QVFB | |
#include <qwindowsystem_qws.h> | |
#include <qsocketnotifier.h> | |
#include <qapplication.h> | |
#include <private/qcore_unix_p.h> // overrides QT_OPEN | |
QT_BEGIN_NAMESPACE | |
QVFbKeyboardHandler::QVFbKeyboardHandler(const QString &device) | |
: QObject() | |
{ | |
terminalName = device; | |
if (terminalName.isEmpty()) | |
terminalName = QLatin1String("/dev/vkdb"); | |
kbdFD = -1; | |
kbdIdx = 0; | |
kbdBufferLen = sizeof(QVFbKeyData) * 5; | |
kbdBuffer = new unsigned char [kbdBufferLen]; | |
if ((kbdFD = QT_OPEN(terminalName.toLatin1().constData(), O_RDONLY | O_NDELAY)) < 0) { | |
qWarning("Cannot open %s (%s)", terminalName.toLatin1().constData(), | |
strerror(errno)); | |
} else { | |
// Clear pending input | |
char buf[2]; | |
while (QT_READ(kbdFD, buf, 1) > 0) { } | |
notifier = new QSocketNotifier(kbdFD, QSocketNotifier::Read, this); | |
connect(notifier, SIGNAL(activated(int)),this, SLOT(readKeyboardData())); | |
} | |
} | |
QVFbKeyboardHandler::~QVFbKeyboardHandler() | |
{ | |
if (kbdFD >= 0) | |
QT_CLOSE(kbdFD); | |
delete [] kbdBuffer; | |
} | |
void QVFbKeyboardHandler::readKeyboardData() | |
{ | |
int n; | |
do { | |
n = QT_READ(kbdFD, kbdBuffer+kbdIdx, kbdBufferLen - kbdIdx); | |
if (n > 0) | |
kbdIdx += n; | |
} while (n > 0); | |
int idx = 0; | |
while (kbdIdx - idx >= (int)sizeof(QVFbKeyData)) { | |
QVFbKeyData *kd = (QVFbKeyData *)(kbdBuffer + idx); | |
if (kd->unicode == 0 && kd->keycode == 0 && kd->modifiers == 0 && kd->press) { | |
// magic exit key | |
qWarning("Instructed to quit by Virtual Keyboard"); | |
qApp->quit(); | |
} | |
QWSServer::processKeyEvent(kd->unicode ? kd->unicode : 0xffff, kd->keycode, kd->modifiers, kd->press, kd->repeat); | |
idx += sizeof(QVFbKeyData); | |
} | |
int surplus = kbdIdx - idx; | |
for (int i = 0; i < surplus; i++) | |
kbdBuffer[i] = kbdBuffer[idx+i]; | |
kbdIdx = surplus; | |
} | |
QT_END_NAMESPACE | |
#endif // QT_NO_QWS_KBD_QVFB | |
#endif // QT_NO_QWS_KEYBOARD |