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41
42 #include <stdlib.h>
43 #include <sys/types.h>
44 #include <sys/stat.h>
45 #include <unistd.h>
46 #include <fcntl.h>
47 #include <errno.h>
48
49 #include <qvfbhdr.h>
50 #include <qkbdvfb_qws.h>
51
52 #ifndef QT_NO_QWS_KEYBOARD
53 #ifndef QT_NO_QWS_KBD_QVFB
54
55 #include <qwindowsystem_qws.h>
56 #include <qsocketnotifier.h>
57 #include <qapplication.h>
58 #include <private/qcore_unix_p.h> // overrides QT_OPEN
59
60 QT_BEGIN_NAMESPACE
61
QVFbKeyboardHandler(const QString & device)62 QVFbKeyboardHandler::QVFbKeyboardHandler(const QString &device)
63 : QObject()
64 {
65 terminalName = device;
66 if (terminalName.isEmpty())
67 terminalName = QLatin1String("/dev/vkdb");
68 kbdFD = -1;
69 kbdIdx = 0;
70 kbdBufferLen = sizeof(QVFbKeyData) * 5;
71 kbdBuffer = new unsigned char [kbdBufferLen];
72
73 if ((kbdFD = QT_OPEN(terminalName.toLatin1().constData(), O_RDONLY | O_NDELAY)) < 0) {
74 qWarning("Cannot open %s (%s)", terminalName.toLatin1().constData(),
75 strerror(errno));
76 } else {
77 // Clear pending input
78 char buf[2];
79 while (QT_READ(kbdFD, buf, 1) > 0) { }
80
81 notifier = new QSocketNotifier(kbdFD, QSocketNotifier::Read, this);
82 connect(notifier, SIGNAL(activated(int)),this, SLOT(readKeyboardData()));
83 }
84 }
85
~QVFbKeyboardHandler()86 QVFbKeyboardHandler::~QVFbKeyboardHandler()
87 {
88 if (kbdFD >= 0)
89 QT_CLOSE(kbdFD);
90 delete [] kbdBuffer;
91 }
92
93
readKeyboardData()94 void QVFbKeyboardHandler::readKeyboardData()
95 {
96 int n;
97 do {
98 n = QT_READ(kbdFD, kbdBuffer+kbdIdx, kbdBufferLen - kbdIdx);
99 if (n > 0)
100 kbdIdx += n;
101 } while (n > 0);
102
103 int idx = 0;
104 while (kbdIdx - idx >= (int)sizeof(QVFbKeyData)) {
105 QVFbKeyData *kd = (QVFbKeyData *)(kbdBuffer + idx);
106 if (kd->unicode == 0 && kd->keycode == 0 && kd->modifiers == 0 && kd->press) {
107 // magic exit key
108 qWarning("Instructed to quit by Virtual Keyboard");
109 qApp->quit();
110 }
111 QWSServer::processKeyEvent(kd->unicode ? kd->unicode : 0xffff, kd->keycode, kd->modifiers, kd->press, kd->repeat);
112 idx += sizeof(QVFbKeyData);
113 }
114
115 int surplus = kbdIdx - idx;
116 for (int i = 0; i < surplus; i++)
117 kbdBuffer[i] = kbdBuffer[idx+i];
118 kbdIdx = surplus;
119 }
120
121 QT_END_NAMESPACE
122
123 #endif // QT_NO_QWS_KBD_QVFB
124 #endif // QT_NO_QWS_KEYBOARD
125