initial import of latest svn version

1 files changed, 444 insertions, 0 deletions

diff --git a/src/pvsgui.cpp b/src/pvsgui.cpp
new file mode 100644
index 0000000..25f1cd6
--- /dev/null
+++ b/src/pvsgui.cpp
@@ -0,0 +1,444 @@
+/*
+ # Copyright (c) 2009, 2010 - OpenSLX Project, Computer Center University of
+ # Freiburg
+ #
+ # This program is free software distributed under the GPL version 2.
+ # See http://openslx.org/COPYING
+ #
+ # If you have any feedback please consult http://openslx.org/feedback and
+ # send your suggestions, praise, or complaints to feedback@openslx.org
+ #
+ # General information about OpenSLX can be found at http://openslx.org/
+ # -----------------------------------------------------------------------------
+ # pvsClientGUI.cpp
+ #  - main loop for pvs client GUI.
+ #  - draws toolbar and system tray icon.
+ #  - uses DBUS to communicate with pvs client.
+ # -----------------------------------------------------------------------------
+ */
+
+#include "pvsgui.h"
+
+PVSGUI::PVSGUI(QWidget *parent) :
+    QWidget(parent)
+{
+    setupUi(this);
+
+    _menu = new QMenu(this);
+    _hostMenu = new QMenu(tr("Connect"), this);
+    _hosts = new QHash<QString, QAction*> ();
+    _vncViewer = new ClientVNCViewer();
+    _chatDialog = new ClientChatDialog();
+    _configDialog = new ClientConfigDialog();
+    _infoDialog = new ClientInfoDialog();
+    _aboutDialog = new AboutDialog();
+
+    _hostMenu->setEnabled(false);
+    hostButton->setEnabled(false);
+
+    setupMenu();
+
+    if (QSystemTrayIcon::isSystemTrayAvailable())
+    {
+        qDebug("[%s] System tray available.", metaObject()->className());
+        _trayIcon = new QSystemTrayIcon(QIcon(":cam_off32.svg"), this);
+        _trayIcon->setContextMenu(_menu);
+        _trayIcon->setVisible(true);
+        _chatDialog->setTrayIcon(_trayIcon);
+    }
+    else
+        _trayIcon = NULL;
+
+    // connect to D-Bus and get interface
+    QDBusConnection dbus = QDBusConnection::sessionBus();
+    dbus.registerObject("/", this);
+    dbus.registerService("org.openslx.pvsgui");
+    _ifaceDBus = new OrgOpenslxPvsInterface("org.openslx.pvs", "/", dbus, this);
+    _ifaceDBus->start(); // start pvs if not running
+
+    // get available hosts
+    QDBusPendingReply<QStringList> reply0 = _ifaceDBus->getAvailableHosts();
+    reply0.waitForFinished();
+    QStringList hosts = reply0.value();
+    if (reply0.isValid() && !hosts.isEmpty())
+        foreach (QString host, hosts)
+                addHost(host);
+
+    // already connected?
+    QDBusPendingReply<QString> reply1 = _ifaceDBus->isConnected();
+    reply1.waitForFinished();
+    QString host = reply1.value();
+    if (reply1.isValid() && host != "")
+        connected(host);
+    else
+        disconnected();
+
+    if (dbus.isConnected())
+        qDebug("[%s] Connection to DBus successful!", metaObject()->className());
+
+    // TODO: perhaps this can go if fadi does his work
+    // check if vnc is allowed and setup checkbox
+    QFile file(QDir::toNativeSeparators(QDir::homePath() + "/.pvs/.allow"));
+    if (file.open(QIODevice::ReadOnly | QIODevice::Text))
+    {
+        QTextStream in(&file);
+        QString line = in.readLine();
+        if (line == "1")
+            vncCheckBox->setChecked(true);
+        file.close();
+    }
+
+    // listen on port 29481 for incoming file transfers
+    _serverSocket = new QTcpServer();
+    _serverSocket->listen(QHostAddress::Any, 29481);
+    connect(_serverSocket, SIGNAL(newConnection()), this, SLOT(receiveFile()));
+
+    // signals & slots - menu
+    connect(_disconnectAction, SIGNAL(triggered()), this, SLOT(pvsDisconnect()));
+    connect(_startChatAction, SIGNAL(triggered()), _chatDialog, SLOT(open()));
+    connect(_sendFileAction, SIGNAL(triggered()), this, SLOT(sendFile()));
+    connect(_configAction, SIGNAL(triggered()), _configDialog, SLOT(open()));
+    connect(_showInfoAction, SIGNAL(triggered()), _infoDialog, SLOT(open()));
+    connect(_aboutAction, SIGNAL(triggered()), _aboutDialog, SLOT(open()));
+    connect(_quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+    connect(_configDialog, SIGNAL(configChanged()), this, SLOT(updateConfig()));
+
+    // signals & slots - toolbar
+    connect(_menu, SIGNAL(aboutToHide()), this, SLOT(hide()));
+    connect(_hostMenu, SIGNAL(aboutToHide()), this, SLOT(hide()));
+    connect(_hostMenu, SIGNAL(triggered(QAction*)), this,
+            SLOT(pvsConnect(QAction*)));
+    connect(vncCheckBox, SIGNAL(stateChanged(int)), this,
+            SLOT(setVncAllow(int)));
+
+    // signals & slots - dbus
+    connect(_ifaceDBus, SIGNAL(showMessage(QString, QString, bool)), this,
+            SLOT(showMessage(QString, QString, bool)));
+    connect(_ifaceDBus, SIGNAL(connected(QString)), this,
+            SLOT(connected(QString)));
+    connect(_ifaceDBus, SIGNAL(disconnected()), this, SLOT(disconnected()));
+    connect(_ifaceDBus, SIGNAL(addHost(QString)), this, SLOT(addHost(QString)));
+    connect(_ifaceDBus, SIGNAL(delHost(QString)), this, SLOT(delHost(QString)));
+
+    // show toolbar
+    setWindowFlags(Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint);
+    setAttribute(Qt::WA_AlwaysShowToolTips);
+    updateConfig();
+    setVisible(true);
+    hide();
+}
+
+PVSGUI::~PVSGUI()
+{
+    _ifaceDBus->quit();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Public
+
+void PVSGUI::updateConfig()
+{
+    if (_settings.value("Display/location").isNull())
+        setLocation(POSITION_TOP_CENTER);
+    else
+        setLocation(_settings.value("Display/location").toInt());
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Protected
+
+void PVSGUI::leaveEvent(QEvent * e)
+{
+    if (!_menu->isVisible() && !_hostMenu->isVisible())
+        hide(true);
+    QWidget::leaveEvent(e);
+}
+
+void PVSGUI::enterEvent(QEvent * e)
+{
+    hide(false);
+    QWidget::enterEvent(e);
+}
+
+void PVSGUI::mousePressEvent(QMouseEvent *event)
+{
+    QApplication::setOverrideCursor(QCursor(Qt::ClosedHandCursor));
+    _clickPoint = event->pos();
+}
+
+void PVSGUI::mouseReleaseEvent(QMouseEvent *event)
+{
+    QApplication::setOverrideCursor(QCursor(Qt::ArrowCursor));
+}
+
+void PVSGUI::mouseMoveEvent(QMouseEvent *event)
+{
+    if (event->globalX() - _clickPoint.x() >= 0 && event->globalX()
+            - _clickPoint.x() + width() <= QApplication::desktop()->width())
+    {
+        move(event->globalX() - _clickPoint.x(), y());
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Private
+
+void PVSGUI::setupMenu()
+{
+    // setup actions
+    _disconnectAction = new QAction(tr("&Disconnect"), this);
+    _startChatAction = new QAction(tr("C&hat"), this);
+    _sendFileAction = new QAction(tr("&Send File"), this);
+    _configAction = new QAction(tr("&Config"), this);
+    _showInfoAction = new QAction(tr("&Information"), this);
+    _aboutAction = new QAction(tr("&About"), this);
+    _quitAction = new QAction(tr("&Quit"), this);
+
+    // setup menu
+    _menu->addMenu(_hostMenu);
+    _menu->addAction(_disconnectAction);
+    _menu->addAction(_showInfoAction);
+    _menu->addSeparator();
+    _menu->addAction(_startChatAction);
+    _menu->addAction(_sendFileAction);
+    _menu->addSeparator();
+    _menu->addAction(_configAction);
+    _menu->addAction(_aboutAction);
+    _menu->addSeparator();
+    _menu->addAction(_quitAction);
+
+    pvsButton->setMenu(_menu);
+    hostButton->setMenu(_hostMenu);
+}
+
+void PVSGUI::setLocation(int location)
+{
+    _location = location;
+    switch (_location)
+    {
+    case POSITION_TOP_LEFT:
+        move(0, 0);
+        break;
+    case POSITION_TOP_CENTER:
+        move((QApplication::desktop()->width() - width()) / 2, 0);
+        break;
+    case POSITION_TOP_RIGHT:
+        move(QApplication::desktop()->width() - width(), 0);
+        break;
+    case POSITION_BOTTOM_LEFT:
+        move(0, QApplication::desktop()->height() - height());
+        break;
+    case POSITION_BOTTOM_CENTER:
+        move((QApplication::desktop()->width() - width()) / 2,
+                QApplication::desktop()->height() - height());
+        break;
+    case POSITION_BOTTOM_RIGHT:
+        move(QApplication::desktop()->width() - width(),
+                QApplication::desktop()->height() - height());
+        break;
+    default:
+        break;
+    }
+}
+
+void PVSGUI::hide(bool b)
+{
+    if (b)
+    {
+        if (_location <= POSITION_TOP_RIGHT)
+            move(x(), 2 - height());
+        else
+            move(x(), QApplication::desktop()->height() - 2);
+    }
+    else
+    {
+        if (_location <= POSITION_TOP_RIGHT)
+            move(x(), 0);
+        else
+            move(x(), QApplication::desktop()->height() - height());
+    }
+}
+
+void PVSGUI::hide()
+{
+    if (!_menu->isVisible() && !_hostMenu->isVisible())
+        hide(true);
+}
+
+void PVSGUI::pvsConnect(QAction *action)
+{
+    QString host = action->text();
+    action->setChecked(false); // we set it manually
+
+    // already connected?
+    if (host == hostButton->text())
+    {
+        action->setChecked(true);
+        return;
+    }
+
+    // ask user for passwd
+    bool ok = false;
+    QString passwd = QInputDialog::getText(0, tr("PVS Connection"), tr(
+            "Please enter password (If not needed leave blank):"),
+            QLineEdit::Password, QString(), &ok);
+
+    if (ok)
+    {
+        _ifaceDBus->pvsConnect(host, passwd); // send via dbus
+        _passwd = passwd; // TODO: we have to ask the backend for passwd!
+        qDebug("[%s] Host '%s' send via DBus.", metaObject()->className(),
+                qPrintable(host));
+    }
+}
+
+void PVSGUI::pvsDisconnect()
+{
+    QMessageBox::StandardButton result = QMessageBox::question(0, tr(
+            "PVS Connection"), tr("Are you sure you want to disconnect?"),
+            QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
+
+    if (result == QMessageBox::Ok)
+        _ifaceDBus->pvsDisconnect();
+}
+
+void PVSGUI::showMessage(QString title, QString msg, bool useDialog)
+{
+    if (!isVisible())
+        return;
+
+    // show balloon message if supported, otherwise show message dialog
+    if (!useDialog && _trayIcon && QSystemTrayIcon::supportsMessages())
+        _trayIcon->showMessage(title, msg, QSystemTrayIcon::Information, 10000);
+    else
+        QMessageBox::about(0, title, msg);
+}
+
+void PVSGUI::connected(QString host)
+{
+    statusLabel->setText(
+            "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\"><html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">p, li { white-space: pre-wrap; }</style></head><body style=\" font-family:'DejaVu Sans'; font-size:9pt; font-weight:400; font-style:normal;\"><p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" color:#00aa00;\">Online</span></p></body></html>");
+    showMessage(tr("PVS connection"), tr("Connected to ") + host);
+    if (_hosts->contains(host))
+        _hosts->value(host)->setChecked(true);
+    hostButton->setText(host);
+    _disconnectAction->setEnabled(true);
+    _startChatAction->setEnabled(true);
+    _sendFileAction->setEnabled(true);
+    _showInfoAction->setEnabled(true);
+    _infoDialog->setHost(host);
+    _infoDialog->setPasswd(_passwd);
+
+    if (_trayIcon)
+    {
+        _trayIcon->setIcon(QIcon(":cam_on32.svg"));
+        _trayIcon->setToolTip(tr("Connected to ") + host);
+    }
+}
+
+void PVSGUI::disconnected()
+{
+    statusLabel->setText(
+            "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\"><html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">p, li { white-space: pre-wrap; }</style></head><body style=\" font-family:'DejaVu Sans'; font-size:9pt; font-weight:400; font-style:normal;\"><p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" color:#ff0000;\">Offline</span></p></body></html>");
+    showMessage(tr("PVS connection"), tr("Disconnected"));
+    if (_hosts->contains(hostButton->text()))
+        _hosts->value(hostButton->text())->setChecked(false);
+    hostButton->setText("-");
+    _disconnectAction->setEnabled(false);
+    _startChatAction->setEnabled(false);
+    _sendFileAction->setEnabled(false);
+    _showInfoAction->setEnabled(false);
+    _passwd = "";
+    if (_trayIcon)
+    {
+        _trayIcon->setIcon(QIcon(":cam_off32.svg"));
+        _trayIcon->setToolTip(tr("Disconnected"));
+    }
+    _vncViewer->close();
+}
+
+void PVSGUI::addHost(QString host)
+{
+    // avoid duplicates
+    if (_hosts->contains(host))
+        return;
+
+    QAction *action = _hostMenu->addAction(host);
+    action->setCheckable(true);
+    _hosts->insert(host, action);
+
+    if (!_hosts->isEmpty())
+    {
+        _hostMenu->setEnabled(true);
+        hostButton->setEnabled(true);
+    }
+
+    if (hostButton->text() == "-")
+        showMessage(tr("PVS Connection"), tr("New host available: ") + host);
+}
+
+void PVSGUI::delHost(QString host)
+{
+    if (_hosts->contains(host))
+    {
+        _hostMenu->removeAction(_hosts->value(host));
+        _hosts->remove(host);
+    }
+
+    if (_hosts->isEmpty())
+    {
+        _hostMenu->setEnabled(false);
+        hostButton->setEnabled(false);
+    }
+}
+
+// TODO: perhaps this can go if fadi does his work
+void PVSGUI::setVncAllow(int i)
+{
+    QFile file(QDir::toNativeSeparators(QDir::homePath() + "/.pvs/.allow"));
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
+        return;
+
+    QTextStream out(&file);
+    if (i == 0)
+        out << 0;
+    else
+        out << 1;
+
+    file.close();
+}
+
+void PVSGUI::sendFile()
+{
+    ClientFileSendDialog *d = new ClientFileSendDialog();
+    d->open();
+}
+
+void PVSGUI::receiveFile()
+{
+    QTcpSocket *socket = _serverSocket->nextPendingConnection();
+    ClientFileReceiveDialog *d = new ClientFileReceiveDialog(socket);
+    d->open();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+// Main
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    app.setOrganizationName("openslx");
+    app.setOrganizationDomain("openslx.org");
+    app.setApplicationName("pvsgui");
+
+    // use system locale as language to translate gui
+    QTranslator translator;
+    translator.load(":pvsgui");
+    app.installTranslator(&translator);
+
+    PVSGUI pvsgui;
+
+    return app.exec();
+}