1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#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
|
