Long live Qt!

1 files changed, 123 insertions, 0 deletions

diff --git a/src/gui/embedded/qkbdvfb_qws.cpp b/src/gui/embedded/qkbdvfb_qws.cpp
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+++ b/src/gui/embedded/qkbdvfb_qws.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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>
+
+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 = 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 (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)
+        close(kbdFD);
+    delete [] kbdBuffer;
+}
+
+
+void QVFbKeyboardHandler::readKeyboardData()
+{
+    int n;
+    do {
+        n  = 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