File indexing completed on 2024-04-21 15:07:59

 // Copyright (c) 2002-2004 Rob Kaper <cap@capsi.com>
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License
 // version 2 as published by the Free Software Foundation.
 //
 // This program is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 // General Public License for more details.
 //
 // You should have received a copy of the GNU General Public License
 // along with this program; see the file COPYING.  If not, write to
 // the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 // Boston, MA 02110-1301, USA.
 
 #include <QTcpSocket>
 #include <QHeaderView>
 #include <QIntValidator>
 
 #include <klocalizedstring.h>
 #include <kiconloader.h>
 #include <kguiitem.h>
 #include <kstandardguiitem.h>
 
 #include <monopd.h>
 
 #include "metatlantic.h"
 
 #include "selectserver_widget.h"
 
 #include <atlantik_debug.h>
 
 MetaserverEntry::MetaserverEntry(const QString &host, int port, const QString &version, int users)
     : QObject()
     , QTreeWidgetItem(MetaserverType)
     , m_latency(9999)
     , m_users(users)
     , m_port(port)
     , m_isDev(version.indexOf(QLatin1String("CVS")) != -1 || version.indexOf(QLatin1String("-dev")) != -1)
 {
     setText(0, host);
     setText(1, QString::number(m_latency));
     setText(2, version);
     setText(3, users == -1 ? i18n("unknown") : QString::number(m_users));
     setIcon(0, KDE::icon(QStringLiteral("atlantik")));
     setDisabled(true);
 
     m_latencySocket = new QTcpSocket();
     m_latencySocket->setSocketOption(QAbstractSocket::LowDelayOption, true);
     connect(m_latencySocket, SIGNAL(hostFound()), this, SLOT(resolved()));
     connect(m_latencySocket, SIGNAL(connected()), this, SLOT(connected()));
 
     m_latencySocket->connectToHost(host, m_port);
 }
 
 bool MetaserverEntry::isDev() const
 {
     return m_isDev;
 }
 
 QString MetaserverEntry::host() const
 {
     return text(0);
 }
 
 int MetaserverEntry::port() const
 {
     return m_port;
 }
 
 bool MetaserverEntry::operator<(const QTreeWidgetItem &other) const
 {
     if (other.type() != MetaserverType)
         return QTreeWidgetItem::operator<(other);
 
     // sort by (less) latency first, then (most) users, then by host
     const MetaserverEntry *e = static_cast<const MetaserverEntry *>(&other);
     if (m_latency < e->m_latency)
         return true;
     if (m_users > e->m_users)
         return true;
     return QString::compare(host(), e->host()) > 0;
 }
 
 void MetaserverEntry::resolved()
 {
     m_timer.start();
     qCDebug(ATLANTIK_LOG) << host() << "resolved; timer starts";
 }
 
 void MetaserverEntry::connected()
 {
     m_latency = m_timer.elapsed();
     m_latencySocket->abort();
     qCDebug(ATLANTIK_LOG) << "connected to" << host() << "- latency =" << m_latency;
     setDisabled(false);
     setText(1, QString::number(m_latency));
     disconnect(m_latencySocket, nullptr, this, nullptr);
     m_latencySocket->deleteLater();
     m_latencySocket = nullptr;
 }
 
 SelectServer::SelectServer(bool hideDevelopmentServers, QWidget *parent)
     : QWidget(parent)
     , m_metatlantic(nullptr)
     , m_hideDevelopmentServers(hideDevelopmentServers)
 {
     setupUi(this);
     layout()->setContentsMargins(0, 0, 0, 0);
 
     connect(m_hostEdit, SIGNAL(returnPressed()), this, SLOT(customConnect()));
     connect(m_hostEdit, SIGNAL(textChanged(QString)), this, SLOT(validateCustomConnectButton()));
 
     m_portEdit->setText(QString::number(MONOPD_PORT));
     m_portEdit->setValidator(new QIntValidator(1, 65535, m_portEdit));
     connect(m_portEdit, SIGNAL(returnPressed()), this, SLOT(customConnect()));
     connect(m_portEdit, SIGNAL(textChanged(QString)), this, SLOT(validateCustomConnectButton()));
 
     m_customConnectButton->setIcon(KDE::icon(QStringLiteral("network-wired")));
     connect(m_customConnectButton, SIGNAL(clicked()), this, SLOT(customConnect()));
 
     // List of servers
     m_serverList->sortItems(1, Qt::AscendingOrder);
     m_serverList->header()->setSectionsClickable(false);
     m_serverList->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
     m_serverList->header()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
     m_serverList->header()->setSectionResizeMode(3, QHeaderView::ResizeToContents);
 
     connect(m_serverList, SIGNAL(itemClicked(QTreeWidgetItem*,int)), this, SLOT(validateConnectButton()));
     connect(m_serverList, SIGNAL(itemDoubleClicked(QTreeWidgetItem*,int)), this, SLOT(slotConnect()));
     connect(m_serverList, SIGNAL(currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)), this, SLOT(validateConnectButton()));
 
     // Server List / Refresh
     KGuiItem::assign(m_refreshButton, KGuiItem(i18n("Get Server List"), QStringLiteral("network-wired")));
     connect(m_refreshButton, SIGNAL(clicked()), this, SLOT(reloadServerList()));
 
     // Connect
     m_connectButton->setIcon(KStandardGuiItem::forward(KStandardGuiItem::UseRTL).icon());
 
     connect(m_connectButton, SIGNAL(clicked()), this, SLOT(slotConnect()));
 
     validateConnectButton();
     validateCustomConnectButton();
 }
 
 SelectServer::~SelectServer()
 {
     if (m_metatlantic)
         m_metatlantic->kill();
     delete m_metatlantic;
 }
 
 void SelectServer::setHideDevelopmentServers(bool hideDevelopmentServers)
 {
     if ( m_hideDevelopmentServers != hideDevelopmentServers )
     {
         m_hideDevelopmentServers = hideDevelopmentServers;
         foreach (MetaserverEntry *e, m_developmentServers)
             e->setHidden(m_hideDevelopmentServers);
     }
 }
 
 void SelectServer::initMetaserver()
 {
     // Hardcoded, but there aren't any other Metatlantic root servers at the moment
     Q_EMIT msgStatus(i18n("Retrieving server list..."));
 
     KGuiItem::assign(m_refreshButton, KGuiItem(i18n("Reload Server List"), QStringLiteral("view-refresh")));
     m_metatlantic = new Metatlantic(QString::fromLatin1(METATLANTIC_HOST), METATLANTIC_PORT);
 
     connect(m_metatlantic, SIGNAL(metatlanticAdd(QString,int,QString,int)), this, SLOT(slotMetatlanticAdd(QString,int,QString,int)));
     connect(m_metatlantic, SIGNAL(result(KJob*)), SLOT(metatlanticFinished()));
 
     m_metatlantic->start();
 }
 
 void SelectServer::slotMetatlanticAdd(const QString &host, int port, const QString &version, int users)
 {
     MetaserverEntry *item = new MetaserverEntry(host, port, version, users);
     m_serverList->addTopLevelItem(item);
     m_serverList->resizeColumnToContents(0);
 
     if ( item->isDev() )
     {
         m_developmentServers.append(item);
         item->setHidden(m_hideDevelopmentServers);
     }
 
     validateConnectButton();
 }
 
 void SelectServer::metatlanticFinished()
 {
     if (m_metatlantic->error())
         Q_EMIT msgStatus(i18n("Error while retrieving the server list."));
     else
         Q_EMIT msgStatus(i18n("Retrieved server list."));
     m_metatlantic = nullptr;
     m_refreshButton->setEnabled(true);
 }
 
 void SelectServer::validateConnectButton()
 {
     if (!m_serverList->selectedItems().isEmpty())
         m_connectButton->setEnabled(true);
     else
         m_connectButton->setEnabled(false);
 }
 
 void SelectServer::validateCustomConnectButton()
 {
     m_customConnectButton->setEnabled(!m_hostEdit->text().isEmpty() && !m_portEdit->text().isEmpty());
 }
 
 void SelectServer::reloadServerList()
 {
     m_developmentServers.resize(0); // Keep the capacity allocated
     m_serverList->clear();
     validateConnectButton();
 
     m_refreshButton->setEnabled(false);
     initMetaserver();
 }
 
 void SelectServer::slotConnect()
 {
     const QList<QTreeWidgetItem *> items = m_serverList->selectedItems();
     if (!items.isEmpty())
     {
         const QTreeWidgetItem *item = items.first();
         Q_ASSERT(item->type() == MetaserverEntry::MetaserverType);
         const MetaserverEntry *e = static_cast<const MetaserverEntry *>(item);
         Q_EMIT serverConnect(e->host(), e->port());
     }
 }
 
 void SelectServer::customConnect()
 {
     if (!m_hostEdit->text().isEmpty() && !m_portEdit->text().isEmpty())
         Q_EMIT serverConnect(m_hostEdit->text(), m_portEdit->text().toInt());
 }
 
 #include "moc_selectserver_widget.cpp"