mainwindow.cpp

//------------------------------------------------------------------------------
// mainwindow.cpp
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2009 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------
#include "application.h"
#include "apprunner.h"
#include "commandline.h"
#include "configuration/doomseekerconfig.h"
#include "configuration/queryspeed.h"
#include "connectionhandler.h"
#include "customservers.h"
#include "datapaths.h"
#include "doomseekerfilepaths.h"
#include "fileutils.h"
#include "gamedemo.h"
#include "gui/aboutdialog.h"
#include "gui/checkwadsdlg.h"
#include "gui/configuration/doomseekerconfigurationdialog.h"
#include "gui/configuration/irc/ircconfigurationdialog.h"
#include "gui/copytextdlg.h"
#include "gui/createserverdialog.h"
#include "gui/demomanager.h"
#include "gui/dockBuddiesList.h"
#include "gui/freedoomdialog.h"
#include "gui/helpers/playersdiagram.h"
#include "gui/helpers/taskbarbutton.h"
#include "gui/helpers/taskbarprogress.h"
#include "gui/ip2cupdatebox.h"
#include "gui/irc/ircdock.h"
#include "gui/irc/ircsounds.h"
#include "gui/logdock.h"
#include "gui/mainwindow.h"
#include "gui/models/serverlistmodel.h"
#include "gui/programargshelpdialog.h"
#include "gui/serverdetailsdock.h"
#include "gui/serverfilterdock.h"
#include "gui/serverlist.h"
#include "gui/wadseekerinterface.h"
#include "gui/wadseekershow.h"
#include "gui/widgets/serversstatuswidget.h"
#include "ip2c/ip2cloader.h"
#include "irc/configuration/chatnetworkscfg.h"
#include "irc/configuration/ircconfig.h"
#include "joincommandlinebuilder.h"
#include "log.h"
#include "main.h"
#include "pathfinder/pathfinder.h"
#include "pathfinder/wadpathfinder.h"
#include "plugins/engineplugin.h"
#include "plugins/pluginloader.h"
#include "refresher/refresher.h"
#include "serverapi/broadcast.h"
#include "serverapi/broadcastmanager.h"
#include "serverapi/gameclientrunner.h"
#include "serverapi/mastermanager.h"
#include "serverapi/message.h"
#include "serverapi/server.h"
#include "serverapi/serverlistcounttracker.h"
#include "strings.hpp"
#include "ui_mainwindow.h"
#include "updater/autoupdater.h"
#include "updater/updatechannel.h"
#include "updater/updateinstaller.h"
#include "updater/updatepackage.h"
#include "wadseeker/entities/checksum.h"
#include <cassert>
#include <QAction>
#include <QApplication>
#include <QDesktopServices>
#include <QDockWidget>
#include <QFileInfo>
#include <QHeaderView>
#include <QIcon>
#include <QLineEdit>
#include <QMessageBox>
#include <QMessageBox>
#include <QPointer>
#include <QProgressBar>
#include <QSizePolicy>
#include <QToolBar>

const QString MainWindow::HELP_SITE_URL = "https://doomseeker.drdteam.org/help";

class QueryMenuAction : public QAction
{
public:
        QueryMenuAction(const EnginePlugin *plugin, ServersStatusWidget *statusWidget, QObject *parent = nullptr)
                : QAction(parent)
        {
                this->pPlugin = plugin;

                if (plugin != nullptr)
                {
                        connect(this, SIGNAL(toggled(bool)), plugin->data()->masterClient,
                                SLOT(setEnabled(bool)));
                        connect(this, SIGNAL(toggled(bool)), statusWidget, SLOT(setMasterEnabledStatus(bool)));
                }
        }

        const EnginePlugin *plugin() const
        {
                return pPlugin;
        }

private:
        const EnginePlugin *pPlugin;
};

DClass<MainWindow> : public Ui::MainWindowWnd
{
public:
        PrivData() : bTotalRefreshInProcess(false), buddiesList(nullptr),
                bWasMaximized(false), bWantToQuit(false), logDock(nullptr),
                masterManager(nullptr), trayIcon(nullptr), trayIconMenu(nullptr)
        {
        }

        QApplication *application;
        QTimer autoRefreshTimer;

        AutoUpdater *autoUpdater;
        QWidget *autoUpdaterStatusBarWidget;
        QPushButton *autoUpdaterAbortButton;
        QLabel *autoUpdaterLabel;
        QProgressBar *autoUpdaterFileProgressBar;
        QProgressBar *autoUpdaterOverallProgressBar;

        bool bTotalRefreshInProcess;

        DockBuddiesList *buddiesList;
        BroadcastManager *broadcastManager;

        bool bWasMaximized;

        bool bWantToQuit;

        IP2CLoader *ip2cLoader;
        QProgressBar *ip2cUpdateProgressBar;
        IRCDock *ircDock;
        LogDock *logDock;
        ServerDetailsDock *detailsDock;
        QPointer<FreedoomDialog> freedoomDialog;
        ServerFilterDock *serverFilterDock;
        ServerList *serverList;

        MasterManager *masterManager;
        QHash<const EnginePlugin *, QueryMenuAction *> queryMenuPorts;
        QHash<const EnginePlugin *, ServersStatusWidget *> serversStatusesWidgets;
        QAction *toolBarGetServers;
        QSystemTrayIcon *trayIcon;
        QMenu *trayIconMenu;
        UpdateChannel *updateChannelOnUpdateStart;
        int updaterInstallerErrorCode;

        ConnectionHandler *connectionHandler;
        QDockWidget *mainDock;

        TaskbarProgress *taskbarProgress;
        TaskbarButton *taskbarButton;
};

DPointeredNoCopy(MainWindow)

MainWindow::MainWindow(QApplication *application)
{
        d->autoUpdater = nullptr;
        d->mainDock = nullptr;
        d->connectionHandler = nullptr;
        d->updateChannelOnUpdateStart = new UpdateChannel();
        d->updaterInstallerErrorCode = 0;

        d->application = application;

        this->setAttribute(Qt::WA_DeleteOnClose, true);
        d->setupUi(this);

        d->taskbarButton = new TaskbarButton(this);
        d->taskbarProgress = d->taskbarButton->progress();

        setupIcons();

        initAutoUpdaterWidgets();

        d->updatesConfirmationWidget->hide();
        d->updatesDownloadedWidget->hide();

        // Hide menu options which aren't supported on target platform.
        #ifndef WITH_AUTOUPDATES
        d->menuActionCheckForUpdates->setVisible(false);
        #endif

        initIP2CUpdater();

        // The buddies list must always be available so we can perform certain operations on it
        d->buddiesList = new DockBuddiesList(this);
        d->menuView->addAction(d->buddiesList->toggleViewAction());
        d->buddiesList->toggleViewAction()->setText(MainWindow::tr("&Buddies"));
        d->buddiesList->toggleViewAction()->setShortcut(MainWindow::tr("CTRL+B"));

        connect(d->buddiesList, SIGNAL(joinServer(ServerPtr)), this, SLOT(runGame(ServerPtr)));
        d->buddiesList->hide();
        this->addDockWidget(Qt::LeftDockWidgetArea, d->buddiesList);
        initLogDock();
        initIRCDock();
        initServerFilterDock();
        initMainDock();
        splitDockWidget(d->mainDock, d->serverFilterDock, Qt::Horizontal);

        // Spawn Server Table Handler.
        d->serverList = new ServerList(d->tableServers, this);
        connectEntities();

        d->broadcastManager = new BroadcastManager(this);
        d->serverList->connect(d->broadcastManager,
                SIGNAL(newServerDetected(ServerPtr,int)), SLOT(registerServer(ServerPtr)));
        d->serverList->connect(d->broadcastManager,
                SIGNAL(serverLost(ServerPtr)), SLOT(removeServer(ServerPtr)));

        initServerDetailsDock();
        tabifyDockWidget(d->ircDock, d->detailsDock);

        // Restore checked states.
        d->menuActionRecordDemo->setChecked(gConfig.doomseeker.bRecordDemo);

        // Get the master
        d->masterManager = new MasterManager();
        d->masterManager->setBroadcastManager(d->broadcastManager);
        d->buddiesList->scan(d->masterManager);
        connect(d->masterManager, SIGNAL(masterMessage(MasterClient*,const QString&,const QString&,bool)),
                this, SLOT(masterManagerMessages(MasterClient*,const QString&,const QString&,bool)));
        connect(d->masterManager, SIGNAL(masterMessageImportant(MasterClient*,const Message&)),
                this, SLOT(masterManagerMessagesImportant(MasterClient*,const Message&)));

        // Allow us to enable and disable ports.
        fillQueryMenu(d->masterManager);

        // Init custom servers
        QList<ServerPtr> customServers = d->masterManager->customServs()->readConfig();
        for (ServerPtr server : customServers)
        {
                d->serverList->registerServer(server);
        }

        setWindowIcon(Application::icon());

        // Auto refresh timer
        initAutoRefreshTimer();
        connect(&d->autoRefreshTimer, SIGNAL(timeout()), this, SLOT(autoRefreshTimer_timeout()));

        // Tray icon
        initTrayIcon();

        setupToolBar();

        // Player diagram styles
        PlayersDiagram::loadImages(gConfig.doomseeker.slotStyle);

        // IP2C
        d->menuActionUpdateIP2C->setEnabled(false);
        d->ip2cLoader = new IP2CLoader();
        connectIP2CLoader();
        d->ip2cLoader->load();

        restoreState(QByteArray::fromBase64(gConfig.doomseeker.mainWindowState.toUtf8()));
        restoreGeometry(gConfig.doomseeker.mainWindowGeometry);

        // Start first refresh from a timer. We want the main window fully
        // set up before refresh.
        QTimer::singleShot(1, this, SLOT(postInitAppStartup()));
}

MainWindow::~MainWindow()
{
        // Window geometry settings
        gConfig.doomseeker.mainWindowGeometry = saveGeometry();
        gConfig.doomseeker.mainWindowState = saveState().toBase64();

        if (d->updateChannelOnUpdateStart != nullptr)
                delete d->updateChannelOnUpdateStart;
        if (d->autoUpdater != nullptr)
        {
                d->autoUpdater->disconnect();
                delete d->autoUpdater;
        }
        if (d->connectionHandler)
                delete d->connectionHandler;

        QList<QAction *> menuQueryActions = d->menuQuery->actions();
        QList<QAction *>::iterator it;
        for (QAction *action : menuQueryActions)
        {
                QString pluginName = action->text();

                if (!pluginName.isEmpty())
                {
                        IniSection pluginConfig = gConfig.iniSectionForPlugin(pluginName);
                        pluginConfig["Query"] = action->isChecked();
                }
        }

        if (d->trayIcon != nullptr)
        {
                d->trayIcon->setVisible(false);
                delete d->trayIcon;
                d->trayIcon = nullptr;
        }

        if (d->trayIconMenu != nullptr)
        {
                delete d->trayIconMenu;
                d->trayIconMenu = nullptr;
        }

        delete d->serverList;

        if (d->masterManager != nullptr)
                delete d->masterManager;

        if (d->ip2cLoader != nullptr)
                delete d->ip2cLoader;
}

void MainWindow::abortAutoUpdater()
{
        if (d->autoUpdater != nullptr)
                d->autoUpdater->abort();
}

void MainWindow::autoRefreshTimer_timeout()
{
        if (gConfig.doomseeker.bQueryAutoRefreshDontIfActive && !isMinimized())
        {
                if (QApplication::activeWindow() != nullptr)
                        return;
        }

        getServers();
}

void MainWindow::blockRefreshButtons()
{
        d->toolBarGetServers->setEnabled(false);
}

DockBuddiesList *MainWindow::buddiesList()
{
        return d->buddiesList;
}

void MainWindow::changeEvent(QEvent *event)
{
        if (event->type() == QEvent::ActivationChange && isActiveWindow() && !isMinimized() && !isHidden())
        {
                d->serverList->cleanUp();
                event->accept();
        }
        QMainWindow::changeEvent(event);
}

void MainWindow::checkForUpdates(bool bUserTriggered)
{
        if (d->autoUpdater != nullptr)
        {
                if (d->autoUpdater->isRunning())
                {
                        QMessageBox::warning(this, tr("Doomseeker - Auto Update"),
                                tr("Update is already in progress."));
                        return;
                }
                else
                {
                        delete d->autoUpdater;
                        d->autoUpdater = nullptr;
                }
        }
        gLog << tr("Removing old update packages from local temporary space.");
        QStringList removeFilter(QString("%1*").arg(DataPaths::UPDATE_PACKAGE_FILENAME_PREFIX));
        FileUtils::rmAllFiles(DoomseekerFilePaths::updatePackagesStorageDir(),
                removeFilter);

        showAndLogStatusMessage(tr("Checking for updates..."));
        d->autoUpdater = new AutoUpdater();
        this->connect(d->autoUpdater, SIGNAL(statusMessage(QString)),
                SLOT(showAndLogStatusMessage(QString)));
        this->connect(d->autoUpdater, SIGNAL(finished()),
                SLOT(onAutoUpdaterFinish()));
        this->connect(d->autoUpdater, SIGNAL(downloadAndInstallConfirmationRequested()),
                SLOT(onAutoUpdaterDownloadAndInstallConfirmationRequest()));
        this->connect(d->autoUpdater, SIGNAL(overallProgress(int,int,const QString&)),
                SLOT(onAutoUpdaterOverallProgress(int,int,const QString&)));
        this->connect(d->autoUpdater, SIGNAL(packageDownloadProgress(qint64,qint64)),
                SLOT(onAutoUpdaterFileProgress(qint64,qint64)));

        QMap<QString, QList<QString> > ignoredPackagesRevisions;
        if (!bUserTriggered)
        {
                for (const QString &package : gConfig.autoUpdates.lastKnownUpdateRevisions.keys())
                {
                        QString revision = gConfig.autoUpdates.lastKnownUpdateRevisions[package];
                        QList<QString> list;
                        list << revision;
                        ignoredPackagesRevisions.insert(package, list);
                }
        }
        d->autoUpdater->setIgnoreRevisions(ignoredPackagesRevisions);

        UpdateChannel channel = UpdateChannel::fromName(gConfig.autoUpdates.updateChannelName);
        d->autoUpdater->setChannel(channel);
        *d->updateChannelOnUpdateStart = channel;

        bool bRequireConfirmation = true;
        if (!bUserTriggered)
        {
                bRequireConfirmation = (gConfig.autoUpdates.updateMode
                        != DoomseekerConfig::AutoUpdates::UM_FullAuto);
        }
        d->autoUpdater->setRequireDownloadAndInstallConfirmation(bRequireConfirmation);
        d->autoUpdaterStatusBarWidget->show();
        d->autoUpdater->start();
}


void MainWindow::checkForUpdatesAuto()
{
        const bool bUserTriggered = true;
        checkForUpdates(!bUserTriggered);
}

void MainWindow::checkForUpdatesUserTriggered()
{
        const bool bUserTriggered = true;
        checkForUpdates(bUserTriggered);
}

void MainWindow::closeEvent(QCloseEvent *event)
{
        // Check if tray icon is available and if we want to minimize to tray icon
        // when 'X' button is pressed. Real quit requests are handled by
        // quitProgram() method. This method sets d->bWantToQuit to true.
        if (d->trayIcon != nullptr && gConfig.doomseeker.bCloseToTrayIcon && !d->bWantToQuit)
        {
                d->bWasMaximized = isMaximized();
                event->ignore();
                hide();
        }
        else
                event->accept();
}

void MainWindow::confirmUpdateInstallation()
{
        assert(d->autoUpdater != nullptr && "MainWindow::confirmUpdateInstallation()");
        d->updatesConfirmationWidget->hide();
        d->autoUpdater->confirmDownloadAndInstall();
}

void MainWindow::connectIP2CLoader()
{
        this->connect(d->ip2cLoader, SIGNAL(finished()), SLOT(ip2cJobsFinished()));
        this->connect(d->ip2cLoader, SIGNAL(downloadProgress(qint64,qint64)),
                SLOT(ip2cDownloadProgress(qint64,qint64)));
}

void MainWindow::discardUpdates()
{
        assert(d->autoUpdater != nullptr && "MainWindow::confirmUpdateInstallation()");
        d->updatesConfirmationWidget->hide();
        // User rejected this update so let's add the packages
        // to the ignore list so user won't be nagged again.
        const QList<UpdatePackage> &pkgList = d->autoUpdater->newUpdatePackages();
        for (const UpdatePackage &pkg : pkgList)
        {
                gConfig.autoUpdates.lastKnownUpdateRevisions.insert(pkg.name, pkg.revision);
        }
        d->autoUpdater->abort();
}

void MainWindow::connectEntities()
{
        // Connect refreshing thread.
        connect(gRefresher, SIGNAL(block()), this, SLOT(blockRefreshButtons()));
        connect(gRefresher, SIGNAL(finishedQueryingMaster(MasterClient*)), this, SLOT(finishedQueryingMaster(MasterClient*)));
        connect(gRefresher, SIGNAL(sleepingModeEnter()), this, SLOT(refreshThreadEndsWork()));
        connect(gRefresher, SIGNAL(sleepingModeEnter()), d->buddiesList, SLOT(scan()));
        connect(gRefresher, SIGNAL(sleepingModeExit()), this, SLOT(refreshThreadBeginsWork()));

        // Controls
        connect(d->menuActionAbout, SIGNAL(triggered()), this, SLOT(menuHelpAbout()));
        connect(d->menuActionAboutQt, SIGNAL(triggered()), d->application, SLOT(aboutQt()));
        connect(d->menuActionBuddies, SIGNAL(triggered()), this, SLOT(menuBuddies()));
        connect(d->menuActionConfigure, SIGNAL(triggered()), this, SLOT(menuOptionsConfigure()));
        connect(d->menuActionCreateServer, SIGNAL(triggered()), this, SLOT(menuCreateServer()));
        connect(d->menuActionHelp, SIGNAL(triggered()), this, SLOT (menuHelpHelp()));
        connect(d->menuActionIRCOptions, SIGNAL(triggered()), this, SLOT(menuIRCOptions()));
        connect(d->menuActionLog, SIGNAL(triggered()), this, SLOT(menuLog()));
        connect(d->menuActionManageDemos, SIGNAL(triggered()), this, SLOT(menuManageDemos()));
        connect(d->menuActionRecordDemo, SIGNAL(triggered()), this, SLOT(menuRecordDemo()));
        connect(d->menuActionUpdateIP2C, SIGNAL(triggered()), this, SLOT(menuUpdateIP2C()));
        connect(d->menuActionQuit, SIGNAL(triggered()), this, SLOT(quitProgram()));
        connect(d->menuActionViewIRC, SIGNAL(triggered()), this, SLOT(menuViewIRC()));
        connect(d->menuActionWadseeker, SIGNAL(triggered()), this, SLOT(menuWadSeeker()));
        connect(d->serverFilterDock, SIGNAL(filterUpdated(const ServerListFilterInfo&)),
                this, SLOT(updateServerFilter(const ServerListFilterInfo&)));
        connect(d->serverFilterDock, SIGNAL(nonEmptyServerGroupingAtTopToggled(bool)),
                d->serverList, SLOT(setGroupServersWithPlayersAtTop(bool)));
        connect(d->serverList, SIGNAL(serverFilterModified(ServerListFilterInfo)),
                d->serverFilterDock, SLOT(setFilterInfo(ServerListFilterInfo)));
        connect(d->serverList, SIGNAL(serverDoubleClicked(ServerPtr)), this, SLOT(runGame(ServerPtr)));
        connect(d->serverList, SIGNAL(displayServerJoinCommandLine(const ServerPtr&)), this, SLOT(showServerJoinCommandLine(const ServerPtr&)));
        connect(d->serverList, SIGNAL(findMissingWADs(const ServerPtr&)), this, SLOT(findMissingWADs(const ServerPtr&)));
        connect(d->serverList, SIGNAL(serverInfoUpdated(ServerPtr)), this, SLOT(serverAddedToList(ServerPtr)));
        connect(d->buddiesList, SIGNAL(scanCompleted()), d->serverList, SLOT(redraw()));
}

void MainWindow::fillQueryMenu(MasterManager *masterManager)
{
        // This is called only once from the constructor. No clears to
        // d->queryMenuPorts are ever performed. Not even in the destructor.
        for (unsigned i = 0; i < gPlugins->numPlugins(); ++i)
        {
                const EnginePlugin *plugin = gPlugins->info(i);
                if (!plugin->data()->hasMasterClient() && !plugin->data()->hasBroadcast())
                        continue;

                if (plugin->data()->hasMasterClient())
                {
                        MasterClient *pMasterClient = plugin->data()->masterClient;
                        pMasterClient->updateAddress();
                        masterManager->addMaster(pMasterClient);
                }

                if (plugin->data()->hasBroadcast())
                        d->broadcastManager->registerPlugin(plugin);

                // Now is a good time to also populate the status bar widgets
                auto statusWidget = new ServersStatusWidget(plugin, d->serverList);
                d->serversStatusesWidgets.insert(plugin, statusWidget);

                this->connect(statusWidget, SIGNAL(clicked(const EnginePlugin*)),
                        SLOT(togglePluginQueryEnabled(const EnginePlugin*)));
                this->connect(statusWidget, SIGNAL(counterUpdated()),
                        SLOT(updateRefreshProgress()));

                statusBar()->addPermanentWidget(statusWidget);

                QString name = gPlugins->info(i)->data()->name;
                auto query = new QueryMenuAction(plugin, statusWidget, d->menuQuery);
                d->queryMenuPorts.insert(plugin, query);

                d->menuQuery->addAction(query);

                query->setCheckable(true);
                query->setIcon(plugin->icon());
                query->setText(name);

                IniSection pluginConfig = gConfig.iniSectionForPlugin(name);

                if (!pluginConfig.retrieveSetting("Query").value().isNull())
                {
                        bool enabled = pluginConfig["Query"];
                        setQueryPluginEnabled(plugin, enabled);
                }
                else
                {
                        // if no setting is found for this engine
                        // set default to true:
                        setQueryPluginEnabled(plugin, true);
                }
        }
}

void MainWindow::findMissingWADs(const ServerPtr &server)
{
        // Display a message if all WADs are present.
        QList<PWad> wads = server->wads();
        PathFinder pathFinder = server->wadPathFinder();
        QList<PWad> missingWads;
        QList<PWad> incompatibleWads;

        auto checkWadsDlg = new CheckWadsDlg(&pathFinder);
        checkWadsDlg->addWads(wads);
        const CheckResult checkResults = checkWadsDlg->checkWads();

        for (const PWad &wad : checkResults.missingWads)
        {
                missingWads << PWad(wad.name(), true, wad.checksums());
        }
        incompatibleWads << checkResults.incompatibleWads;

        if (missingWads.isEmpty() && incompatibleWads.isEmpty())
        {
                QMessageBox::information(this, tr("All WADs found"), tr("All of the WADs used by this server are present."));
                return;
        }

        MissingWadsDialog dialog(missingWads, incompatibleWads, server->plugin(), this);
        dialog.setAllowIgnore(false);
        if (dialog.exec() == QDialog::Accepted && dialog.decision() == MissingWadsDialog::Install)
        {
                if (!gWadseekerShow->checkWadseekerValidity(this))
                        return;
                WadseekerInterface *wadseeker = WadseekerInterface::createAutoNoGame();
                wadseeker->setCustomSites(server->allWebSites());
                wadseeker->setWads(dialog.filesToDownload());
                wadseeker->setAttribute(Qt::WA_DeleteOnClose);
                wadseeker->show();
        }
}

void MainWindow::finishConfiguration(DoomseekerConfigurationDialog &configDialog, bool lookupHostsChanged)
{
        // In case the master server addresses changed, notify the master clients.
        updateMasterAddresses();
        gRefresher->setDelayBetweenResends(gConfig.doomseeker.querySpeed().delayBetweenSingleServerAttempts);

        // If appearance changed - update the widgets.
        if (configDialog.wasAppearanceChanged())
        {
                updateDynamicAppearance();
                initTrayIcon();
        }

        // If changes require a restart, tell the user
        if (configDialog.isRestartNeeded())
        {
                QString warningRestartNeeded = tr("Doomseeker needs to be restarted for some changes to be applied.");
                d->importantMessagesWidget->addMessage(warningRestartNeeded);
        }

        // Do the following only if setting changed from false to true.
        if (lookupHostsChanged)
                d->serverList->lookupHosts();

        // Refresh custom servers list:
        if (configDialog.customServersChanged())
        {
                d->serverList->removeCustomServers();
                QList<ServerPtr> servers = d->masterManager->customServs()->readConfig();
                for (ServerPtr server : servers)
                {
                        d->serverList->registerServer(server);
                }
                refreshCustomServers();
        }
}

void MainWindow::finishedQueryingMaster(MasterClient *master)
{
        if (master == nullptr)
                return;

        for (int i = 0; i < master->numServers(); i++)
                d->serverList->registerServer((*master)[i]);
}

void MainWindow::fixIconsDpi()
{
        // http://blog.qt.io/blog/2013/04/25/retina-display-support-for-mac-os-ios-and-x11/
        QIcon icon(":/icons/exclamation_16.png");
        d->lblExclamation1->setPixmap(icon.pixmap(16));
        d->lblExclamation2->setPixmap(icon.pixmap(16));
}

void MainWindow::getServers()
{
        // Check if this operation has any sense.
        if (!isAnythingToRefresh())
        {
                QString message = tr("Doomseeker is unable to proceed with the refresh"
                        " operation because the following problem has occurred:\n\n");

                if (gPlugins->numPlugins() == 0)
                        message += tr("Plugins are missing from the \"engines/\" directory.");
                else if (!isAnyMasterEnabled())
                        message += tr("No master servers are enabled in the \"Query\" menu.");
                else
                        message += tr("Unknown error occurred.");

                gLog << message;
                QMessageBox::warning(this, tr("Doomseeker - refresh problem"), message);
                return;
        }

        d->bTotalRefreshInProcess = true;
        d->autoRefreshTimer.stop();
        gLog << tr("Total refresh initialized!");

        // Remove all non special servers. Master servers will
        // "re-provide" them if they are still alive. Whatever
        // remains on the list should be refreshed now.
        d->serverList->removeNonSpecialServers();
        refreshServersOnList();

        if (!isAnyMasterEnabled() && !d->serverList->hasAtLeastOneServer())
        {
                gLog << tr("Warning: No master servers were enabled for this refresh. "
                                "Check your Query menu or \"engines/\" directory.");
        }

        d->masterManager->clearServers();
        for (int i = 0; i < d->masterManager->numMasters(); ++i)
        {
                MasterClient *pMaster = (*d->masterManager)[i];

                if (pMaster->isEnabled())
                        gRefresher->registerMaster(pMaster);
        }
}

bool MainWindow::hasCustomServers() const
{
        CustomServers *customServers = d->masterManager->customServs();
        return customServers->numServers() > 0;
}

void MainWindow::initAutoRefreshTimer()
{
        const unsigned MIN_DELAY = 30;
        const unsigned MAX_DELAY = 3600;

        bool bEnabled = gConfig.doomseeker.bQueryAutoRefreshEnabled;

        if (!bEnabled)
                d->autoRefreshTimer.stop();
        else
        {
                // If delay value is out of bounds we should adjust
                // config value as well.
                unsigned &delay = gConfig.doomseeker.queryAutoRefreshEverySeconds;

                // Make sure delay is in given limit.
                if (delay < MIN_DELAY)
                        delay = MIN_DELAY;
                else if (delay > MAX_DELAY)
                        delay = MAX_DELAY;

                unsigned delayMs = delay * 1000;

                d->autoRefreshTimer.setSingleShot(false);
                d->autoRefreshTimer.start(delayMs);
        }
}

void MainWindow::initAutoUpdaterWidgets()
{
        static const int FILE_BAR_WIDTH = 50;
        static const int OVERALL_BAR_WIDTH = 180;

        d->autoUpdaterStatusBarWidget = new QWidget(statusBar());
        d->autoUpdaterStatusBarWidget->setLayout(new QHBoxLayout(d->autoUpdaterStatusBarWidget));
        d->autoUpdaterStatusBarWidget->layout()->setContentsMargins(QMargins(0, 0, 0, 0));
        statusBar()->addPermanentWidget(d->autoUpdaterStatusBarWidget);
        d->autoUpdaterStatusBarWidget->hide();

        d->autoUpdaterLabel = new QLabel(d->autoUpdaterStatusBarWidget);
        d->autoUpdaterLabel->setText(tr("Auto Updater:"));
        d->autoUpdaterStatusBarWidget->layout()->addWidget(d->autoUpdaterLabel);

        d->autoUpdaterFileProgressBar = mkStdProgressBarForStatusBar();
        d->autoUpdaterFileProgressBar->setFormat("%p%");
        d->autoUpdaterFileProgressBar->setMaximumWidth(FILE_BAR_WIDTH);
        d->autoUpdaterFileProgressBar->setMinimumWidth(FILE_BAR_WIDTH);
        d->autoUpdaterStatusBarWidget->layout()->addWidget(d->autoUpdaterFileProgressBar);

        d->autoUpdaterOverallProgressBar = mkStdProgressBarForStatusBar();
        d->autoUpdaterOverallProgressBar->setMaximumWidth(OVERALL_BAR_WIDTH);
        d->autoUpdaterOverallProgressBar->setMinimumWidth(OVERALL_BAR_WIDTH);
        d->autoUpdaterStatusBarWidget->layout()->addWidget(d->autoUpdaterOverallProgressBar);

        d->autoUpdaterAbortButton = new QPushButton(statusBar());
        d->autoUpdaterAbortButton->setToolTip(tr("Abort update."));
        d->autoUpdaterAbortButton->setIcon(QIcon(":/icons/x.png"));
        this->connect(d->autoUpdaterAbortButton, SIGNAL(clicked()),
                SLOT(abortAutoUpdater()));
        d->autoUpdaterStatusBarWidget->layout()->addWidget(d->autoUpdaterAbortButton);
}

void MainWindow::initIP2CUpdater()
{
        static const int PROGRESSBAR_WIDTH = 220;

        d->ip2cUpdateProgressBar = mkStdProgressBarForStatusBar();
        d->ip2cUpdateProgressBar->setFormat(tr("IP2C Update"));
        d->ip2cUpdateProgressBar->hide();
        d->ip2cUpdateProgressBar->setMaximumWidth(PROGRESSBAR_WIDTH);
        d->ip2cUpdateProgressBar->setMinimumWidth(PROGRESSBAR_WIDTH);
        statusBar()->addPermanentWidget(d->ip2cUpdateProgressBar);
}

void MainWindow::initIRCDock()
{
        d->ircDock = new IRCDock(this);
        d->menuView->addAction(d->ircDock->toggleViewAction());
        d->ircDock->toggleViewAction()->setText(tr("&IRC"));
        d->ircDock->toggleViewAction()->setShortcut(tr("CTRL+I"));
        d->ircDock->hide();
        this->addDockWidget(Qt::BottomDockWidgetArea, d->ircDock);

        if (ChatNetworksCfg().isAnyNetworkOnAutoJoin())
        {
                this->d->ircDock->setVisible(true);
                this->d->ircDock->performNetworkAutojoins();
        }
}

void MainWindow::initLogDock()
{
        d->logDock = new LogDock(this);
        d->menuView->addAction(d->logDock->toggleViewAction());
        d->logDock->toggleViewAction()->setText(tr("&Log"));
        d->logDock->toggleViewAction()->setShortcut(tr("CTRL+L"));
        d->logDock->hide();
        this->addDockWidget(Qt::BottomDockWidgetArea, d->logDock);

        connect(&gLog, SIGNAL(newEntry(const QString&)), d->logDock, SLOT(appendLogEntry(const QString&)));

        // Also add anything that already might be in the log to the box.
        d->logDock->appendLogEntry(gLog.content());
}

void MainWindow::initMainDock()
{
        setDockNestingEnabled(true); // This line allows us to essentially treat a dock as a central widget.

        // Make a dock out of the central MainWindow widget and drop that widget
        // from the MainWindow itself.
        d->mainDock = new QDockWidget(tr("Servers"));
        d->mainDock->setTitleBarWidget(new QWidget(this));
        d->mainDock->setObjectName("ServerList");
        d->mainDock->setFeatures(QDockWidget::NoDockWidgetFeatures);
        d->mainDock->setWidget(centralWidget());
        setCentralWidget(nullptr);
        addDockWidget(Qt::RightDockWidgetArea, d->mainDock);
}

void MainWindow::initServerDetailsDock()
{
        d->detailsDock = new ServerDetailsDock(this);
        d->menuView->addAction(d->detailsDock->toggleViewAction());
        d->detailsDock->toggleViewAction()->setText(tr("Server &details"));
        d->detailsDock->toggleViewAction()->setShortcut(tr("CTRL+D"));
        d->detailsDock->hide();
        addDockWidget(Qt::BottomDockWidgetArea, d->detailsDock);

        d->detailsDock->connect(d->serverList, SIGNAL(serversSelected(QList<ServerPtr>&)), SLOT(displaySelection(QList<ServerPtr> &)));
}

void MainWindow::initServerFilterDock()
{
        d->serverFilterDock = new ServerFilterDock(this);

        d->menuView->addAction(d->serverFilterDock->toggleViewAction());
        d->serverFilterDock->hide();
        this->addDockWidget(Qt::RightDockWidgetArea, d->serverFilterDock);
}

void MainWindow::initTrayIcon()
{
        bool isEnabled = gConfig.doomseeker.bUseTrayIcon;
        if (!isEnabled || !QSystemTrayIcon::isSystemTrayAvailable())
        {
                if (d->trayIcon != nullptr)
                {
                        delete d->trayIcon;
                        d->trayIcon = nullptr;
                }

                if (d->trayIconMenu != nullptr)
                {
                        delete d->trayIconMenu;
                        d->trayIconMenu = nullptr;
                }
        }
        else if (d->trayIcon == nullptr)
        {
                QAction *trayAction;
                d->trayIconMenu = new QMenu(this);
                trayAction = d->trayIconMenu->addAction("Exit");
                connect(trayAction, SIGNAL(triggered()), this, SLOT(quitProgram()));

                // This should be automatically deleted when main window closes
                d->trayIcon = new QSystemTrayIcon(this);
                connect(d->trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(trayIcon_activated(QSystemTrayIcon::ActivationReason)));

                updateTrayIconTooltipAndLogTotalRefresh();

                d->trayIcon->setContextMenu(d->trayIconMenu);
                d->trayIcon->setIcon(QIcon(":/icon.png"));
                d->trayIcon->setVisible(true);
        }
}

void MainWindow::ip2cDownloadProgress(qint64 current, qint64 max)
{
        d->ip2cUpdateProgressBar->setMaximum(max);
        d->ip2cUpdateProgressBar->setValue(current);
}

void MainWindow::ip2cJobsFinished()
{
        d->menuActionUpdateIP2C->setEnabled(true);
        d->serverList->updateCountryFlags();
        d->ip2cUpdateProgressBar->hide();

        if (d->ip2cLoader != nullptr)
        {
                delete d->ip2cLoader;
                d->ip2cLoader = nullptr;
        }
}

void MainWindow::ip2cStartUpdate()
{
        if (d->ip2cLoader != nullptr)
        {
                // If update is currently in progress then prevent re-starting.
                return;
        }

        d->menuActionUpdateIP2C->setEnabled(false);
        d->ip2cUpdateProgressBar->show();

        d->ip2cLoader = new IP2CLoader();
        connectIP2CLoader();
        d->ip2cLoader->update();
}

bool MainWindow::isAnythingToRefresh() const
{
        return hasCustomServers() || isAnyMasterEnabled();
}

bool MainWindow::isAnyMasterEnabled() const
{
        for (int i = 0; i < d->masterManager->numMasters(); ++i)
        {
                MasterClient *pMaster = (*d->masterManager)[i];

                if (pMaster->isEnabled())
                        return true;
        }

        return false;
}

bool MainWindow::isEffectivelyActiveWindow() const
{
        return this->isActiveWindow() || DoomseekerConfigurationDialog::isOpen();
}

void MainWindow::masterManagerMessages(MasterClient *pSender, const QString &title, const QString &content, bool isError)
{
        Q_UNUSED(title);
        QString message = tr("Master server for %1: %2").arg(pSender->plugin()->data()->name).arg(content);

        if (isError)
        {
                message = tr("Error: %1").arg(message);
                statusBar()->showMessage(message);
        }

        gLog << message;
}

void MainWindow::masterManagerMessagesImportant(MasterClient *pSender, const Message &objMessage)
{
        QString strFullMessage = tr("%1: %2")
                .arg(pSender->plugin()->data()->name)
                .arg(objMessage.contents());
        d->importantMessagesWidget->addMessage(strFullMessage, objMessage.timestamp());
}

void MainWindow::menuBuddies()
{
        d->buddiesList->setVisible(!d->buddiesList->isVisible());
}

void MainWindow::menuCreateServer()
{
        // This object will auto-delete on close.
        auto dialog = new CreateServerDialog(GameCreateParams::Host, nullptr);
        dialog->setWindowIcon(this->windowIcon());
        dialog->show();
}

void MainWindow::menuHelpAbout()
{
        AboutDialog dlg(this);
        d->autoRefreshTimer.stop();
        dlg.exec();
        initAutoRefreshTimer();
}

void MainWindow::menuHelpHelp()
{
        if (HELP_SITE_URL.isEmpty() || !Strings::isUrlSafe(HELP_SITE_URL))
        {
                QMessageBox::critical(this, tr("Help error"), tr("No help found."), QMessageBox::Ok, QMessageBox::Ok);
                return;
        }

        bool bSuccess = QDesktopServices::openUrl(HELP_SITE_URL);

        if (!bSuccess)
        {
                QMessageBox::critical(this, tr("Help error"), tr("Failed to open URL:\n%1").arg(HELP_SITE_URL), QMessageBox::Ok, QMessageBox::Ok);
                return;
        }
}

void MainWindow::menuIRCOptions()
{
        IRCConfigurationDialog dialog(this);
        dialog.initOptionsList();
        dialog.exec();

        if (d->ircDock != nullptr)
        {
                d->ircDock->applyAppearanceSettings();

                // This could probably be optimized to not re-read files from drive
                // if audio options didn't change but currently there are only two
                // files, so no harm should be done.
                d->ircDock->sounds().loadFromConfig();
        }
}

void MainWindow::menuLog()
{
        d->logDock->setVisible(!d->logDock->isVisible());
}

void MainWindow::menuManageDemos()
{
        DemoManagerDlg dm;
        dm.setWindowIcon(this->windowIcon());
        dm.exec();
}

void MainWindow::menuOptionsConfigure()
{
        DoomseekerConfigurationDialog::openConfiguration(this);
}

void MainWindow::menuRecordDemo()
{
        gConfig.doomseeker.bRecordDemo = d->menuActionRecordDemo->isChecked();
}

void MainWindow::menuUpdateIP2C()
{
        IP2CUpdateBox updateBox(this);

        connect(&updateBox, SIGNAL(accepted()), this, SLOT(ip2cStartUpdate()));

        updateBox.exec();
}

void MainWindow::menuViewIRC()
{
        d->ircDock->setVisible(!d->ircDock->isVisible());
}

void MainWindow::menuWadSeeker()
{
        if (gWadseekerShow->checkWadseekerValidity(this))
        {
                WadseekerInterface *wadseeker = WadseekerInterface::create(nullptr);
                wadseeker->setAttribute(Qt::WA_DeleteOnClose);
                wadseeker->show();
        }
}

QProgressBar *MainWindow::mkStdProgressBarForStatusBar()
{
        auto pBar = new QProgressBar(statusBar());
        pBar->setAlignment(Qt::AlignCenter);
        pBar->setTextVisible(true);
        pBar->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
        return pBar;
}

void MainWindow::notifyFirstRun()
{
        // On first run prompt configuration box.
        QMessageBox::information(nullptr, tr("Welcome to Doomseeker"),
                tr("Before you start browsing for servers, please ensure that Doomseeker is properly configured."));
        d->menuActionConfigure->trigger();
}

void MainWindow::onAutoUpdaterDownloadAndInstallConfirmationRequest()
{
        d->updatesConfirmationWidget->show();
}

void MainWindow::onAutoUpdaterFileProgress(qint64 bytesReceived, qint64 bytesTotal)
{
        d->autoUpdaterFileProgressBar->setValue(bytesReceived);
        d->autoUpdaterFileProgressBar->setMaximum(bytesTotal);
}

void MainWindow::onAutoUpdaterFinish()
{
        showAndLogStatusMessage(tr("Program update detection & download finished with status: [%1] %2")
                .arg((int)d->autoUpdater->errorCode()).arg(d->autoUpdater->errorString()));
        gConfig.autoUpdates.bPerformUpdateOnNextRun = false;
        if (d->autoUpdater->errorCode() == AutoUpdater::EC_Ok)
        {
                UpdateChannel channel = UpdateChannel::fromName(gConfig.autoUpdates.updateChannelName);
                if (channel == *d->updateChannelOnUpdateStart)
                {
                        if (!d->autoUpdater->downloadedPackagesFilenames().isEmpty())
                        {
                                gLog << tr("Updates will be installed on next program start.");
                                d->updatesDownloadedWidget->show();
                                gConfig.autoUpdates.bPerformUpdateOnNextRun = true;
                        }
                }
                else
                        gLog << tr("Update channel was changed during update process. Discarding update.");
        }
        gConfig.saveToFile();
        d->autoUpdaterStatusBarWidget->hide();
        d->updatesConfirmationWidget->hide();
        d->autoUpdater->deleteLater();
        d->autoUpdater = nullptr;
}

void MainWindow::onAutoUpdaterOverallProgress(int current, int total,
        const QString &msg)
{
        d->autoUpdaterOverallProgressBar->setValue(current);
        d->autoUpdaterOverallProgressBar->setMaximum(total);
        d->autoUpdaterOverallProgressBar->setFormat(msg);
}

void MainWindow::postInitAppStartup()
{
        // Load server filter from config.
        d->serverFilterDock->setFilterInfo(gConfig.serverFilter.info);

        fixIconsDpi();

        // Check query on statup
        // Let's see if we have any plugins first. If not, display error.
        if (gPlugins->numPlugins() > 0)
        {
                bool bGettingServers = false;
                bool queryOnStartup = gConfig.doomseeker.bQueryOnStartup;
                if (queryOnStartup)
                {
                        // If "Query on startup" option is enabled we should
                        // attempt to refresh any masters that are enabled
                        // in the Query menu.

                        if (isAnyMasterEnabled())
                        {
                                bGettingServers = true;
                                getServers();
                        }
                        else
                                gLog << tr("Query on startup warning: No master servers are enabled in the Query menu.");
                }

                // If we already successfully called the getServers() method
                // there is no need to call refreshCustomServers().
                if (!bGettingServers && hasCustomServers())
                {
                        // Custom servers should be refreshed no matter what.
                        // They will not block the app in any way, there is no reason
                        // not to refresh them.
                        refreshCustomServers();
                }
        }
        else
        {
                // There are no plugins so something is really bad.
                // Display error message.
                QString error = tr("Doomseeker was unable to find any plugin libraries.\n"
                        "Although the application will still work it will not be possible "
                        "to fetch any server info or launch any game.\n\n"
                        "Please check if there are any files in \"engines/\" directory.\n"
                        "To fix this problem you may try downloading Doomseeker "
                        "again from the site specified in the Help|About box and reinstalling "
                        "Doomseeker.");
                QMessageBox::critical(nullptr, tr("Doomseeker critical error"), error);
        }
}

QueryMenuAction *MainWindow::queryMenuActionForPlugin(const EnginePlugin *plugin)
{
        if (plugin == nullptr)
                return nullptr;

        if (d->queryMenuPorts.contains(plugin))
                return d->queryMenuPorts[plugin];

        return nullptr;
}

void MainWindow::quitProgram()
{
        d->bWantToQuit = true;
        QApplication::closeAllWindows();
}

void MainWindow::refreshCustomServers()
{
        for (const ServerPtr &server : d->serverList->servers())
        {
                if (server->isCustom())
                        gRefresher->registerServer(server.data());
        }
}

void MainWindow::refreshServersOnList()
{
        for (const ServerPtr &server : d->serverList->servers())
        {
                gRefresher->registerServer(server.data());
        }
}

void MainWindow::refreshThreadBeginsWork()
{
        statusBar()->showMessage(tr("Querying..."));
        d->taskbarProgress->show();
}

void MainWindow::refreshThreadEndsWork()
{
        d->toolBarGetServers->setEnabled(true);

        d->serverList->cleanUpRightNow();
        statusBar()->showMessage(tr("Done"));
        updateTrayIconTooltipAndLogTotalRefresh();
        d->taskbarProgress->hide();

        if (d->bTotalRefreshInProcess)
                initAutoRefreshTimer();

        d->bTotalRefreshInProcess = false;
        QList<ServerPtr> selectedServers = d->serverList->selectedServers();
        d->detailsDock->displaySelection(selectedServers);
}

void MainWindow::restartAndInstallUpdatesNow()
{
        Main::bInstallUpdatesAndRestart = true;
        quitProgram();
}

void MainWindow::runGame(const ServerPtr &server)
{
        if (d->connectionHandler)
                delete d->connectionHandler;

        d->connectionHandler = new ConnectionHandler(server, this);
        d->connectionHandler->run();
}

void MainWindow::setQueryPluginEnabled(const EnginePlugin *plugin, bool bEnabled)
{
        assert(plugin != nullptr);

        QueryMenuAction *pAction = queryMenuActionForPlugin(plugin);
        if (pAction != nullptr)
        {
                pAction->setChecked(bEnabled);
                if (plugin->data()->hasMasterClient())
                        plugin->data()->masterClient->setEnabled(bEnabled);
                if (plugin->data()->hasBroadcast())
                        plugin->data()->broadcast->setEnabled(bEnabled);
                d->serversStatusesWidgets[plugin]->setMasterEnabledStatus(bEnabled);
        }
}

void MainWindow::serverAddedToList(const ServerPtr &pServer)
{
        if (pServer->isKnown())
        {
                const QString &gameMode = pServer->gameMode().name();
                d->serverFilterDock->addGameModeToComboBox(gameMode);
        }
}

void MainWindow::setDisplayUpdaterProcessFailure(int errorCode)
{
        assert(this->d->updaterInstallerErrorCode == 0 &&
                "MainWindow::setDisplayUpdaterProcessFailure()");
        this->d->updaterInstallerErrorCode = errorCode;
        QTimer::singleShot(0, this, SLOT(showUpdaterProcessErrorDialog()));
}

void MainWindow::setDisplayUpdateInstallerError(int errorCode)
{
        assert(this->d->updaterInstallerErrorCode == 0 &&
                "MainWindow::setDisplayUpdateInstallerError()");
        this->d->updaterInstallerErrorCode = errorCode;
        QTimer::singleShot(0, this, SLOT(showUpdateInstallErrorDialog()));
}

void MainWindow::setupIcons()
{
        QStyle &style = *QApplication::style();

        // File menu.
        d->menuActionQuit->setIcon(style.standardIcon(QStyle::SP_TitleBarCloseButton));

        // Help menu.
        d->menuActionHelp->setIcon(style.standardIcon(QStyle::SP_MessageBoxQuestion));
        d->menuActionAbout->setIcon(style.standardIcon(QStyle::SP_MessageBoxInformation));
}

void MainWindow::setupToolBar()
{
        QToolBar *pToolBar = new QToolBar(tr("Main Toolbar"), this);
        pToolBar->setMovable(false);
        pToolBar->setObjectName("Toolbar");

        // Refresh buttons
        d->toolBarGetServers = new QAction(QIcon(":/icons/refresh.png"), tr("Get Servers"), pToolBar);

        // Setup menu
        // Refresh buttons
        pToolBar->addAction(d->toolBarGetServers);

        // File menu buttons.
        pToolBar->addSeparator();
        pToolBar->addAction(d->menuActionCreateServer);
        pToolBar->addAction(d->menuActionWadseeker);

        // Demo buttons
        pToolBar->addSeparator();
        pToolBar->addAction(d->menuActionManageDemos);
        pToolBar->addAction(d->menuActionRecordDemo);

        pToolBar->addSeparator();

        // Dockable windows buttons.
        pToolBar->addAction(d->buddiesList->toggleViewAction());
        pToolBar->addAction(d->logDock->toggleViewAction());
        pToolBar->addAction(d->ircDock->toggleViewAction());
        pToolBar->addAction(d->serverFilterDock->toggleViewAction());
        pToolBar->addAction(d->detailsDock->toggleViewAction());

        // Quick Search
        QLineEdit *qs = d->serverFilterDock->createQuickSearch();
        qs->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
        qs->setMinimumWidth(175);
        qs->setMaximumWidth(175);

        QWidget *searchSeparator = new QWidget();
        searchSeparator->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::MinimumExpanding);
        pToolBar->addWidget(searchSeparator);
        pToolBar->addWidget(new QLabel(tr("Search:"), pToolBar));
        pToolBar->addWidget(qs);

        this->addToolBar(Qt::TopToolBarArea, pToolBar);
        setUnifiedTitleAndToolBarOnMac(true);
        connect(pToolBar, SIGNAL(actionTriggered(QAction*)), this, SLOT(toolBarAction(QAction*)));
}

void MainWindow::showAndLogStatusMessage(const QString &message)
{
        gLog << message;
        statusBar()->showMessage(message);
}

void MainWindow::showEvent(QShowEvent *event)
{
        Q_UNUSED(event);
        // http://stackoverflow.com/a/26910648/1089357
        d->taskbarButton->setWindow(windowHandle());
}

void MainWindow::showInstallFreedoomDialog()
{
        if (!d->freedoomDialog.isNull())
        {
                d->freedoomDialog->activateWindow();
                return;
        }
        auto dialog = new FreedoomDialog(nullptr);
        dialog->setAttribute(Qt::WA_DeleteOnClose);
        dialog->show();
        d->freedoomDialog = dialog;
}

void MainWindow::showProgramArgsHelp()
{
        auto dialog = new ProgramArgsHelpDialog(this);
        dialog->setAttribute(Qt::WA_DeleteOnClose);
        dialog->show();
}

void MainWindow::showServerJoinCommandLine(const ServerPtr &server)
{
        CommandLineInfo cli;
        ConnectionHandler connectionHandler(server, this);
        GameDemo demo = gConfig.doomseeker.bRecordDemo ? GameDemo::Unmanaged : GameDemo::NoDemo;
        JoinCommandLineBuilder *builder = new JoinCommandLineBuilder(server, demo, this);
        this->connect(builder, SIGNAL(commandLineBuildFinished()), SLOT(showServerJoinCommandLineOnBuilderFinished()));
        builder->obtainJoinCommandLine();
}

void MainWindow::showServerJoinCommandLineOnBuilderFinished()
{
        auto builder = static_cast<JoinCommandLineBuilder *>(sender());
        CommandLineInfo cli = builder->builtCommandLine();
        if (cli.isValid())
        {
                QString execPath = cli.executable.absoluteFilePath();
                QStringList args = cli.args;

                CommandLine::escapeExecutable(execPath);
                CommandLine::escapeArgs(args);

                CopyTextDlg ctd(execPath + " " + args.join(" "), builder->server()->name(), this);
                ctd.exec();
        }
        else
        {
                if (!builder->error().isEmpty())
                {
                        QMessageBox::critical(this, tr("Doomseeker - show join command line"),
                                tr("The command line cannot be built:\n%1").arg(builder->error()));
                }
        }
        builder->deleteLater();
}

void MainWindow::showUpdaterProcessErrorDialog()
{
        QString explanation;
        if (this->d->updaterInstallerErrorCode != UpdateInstaller::PEC_GeneralFailure)
        {
                QString errorCodeExplanation = UpdateInstaller::processErrorCodeToStr(
                        (UpdateInstaller::ProcessErrorCode) this->d->updaterInstallerErrorCode);
                explanation = tr("Update installation problem:\n%1").arg(errorCodeExplanation);
        }
        else
                explanation = tr("Update installation failed.");
        QMessageBox::critical(this, tr("Doomseeker - Auto Update problem"),
                tr("%1\n\nRemaining updates have been discarded.").arg(explanation));
}

void MainWindow::showUpdateInstallErrorDialog()
{
        QString error = UpdateInstaller::errorCodeToStr(
                (UpdateInstaller::ErrorCode)this->d->updaterInstallerErrorCode);
        QString msg = tr("Update install problem:\n%1\n\nRemaining updates have been discarded.").arg(error);
        QMessageBox::critical(this, tr("Doomseeker - Auto Update problem"), msg);
}

void MainWindow::stopAutoRefreshTimer()
{
        d->autoRefreshTimer.stop();
}

void MainWindow::togglePluginQueryEnabled(const EnginePlugin *plugin)
{
        QueryMenuAction *pAction = queryMenuActionForPlugin(plugin);
        assert(pAction != nullptr);

        setQueryPluginEnabled(plugin, !pAction->isChecked());
}

void MainWindow::toolBarAction(QAction *pAction)
{
        if (pAction == d->toolBarGetServers)
                getServers();
}

void MainWindow::trayIcon_activated(QSystemTrayIcon::ActivationReason reason)
{
        if (reason == QSystemTrayIcon::Trigger)
        {
                if (isMinimized() || !isVisible())
                {
                        d->bWasMaximized == true ? showMaximized() : showNormal();
                        activateWindow();
                }
                else if (gConfig.doomseeker.bCloseToTrayIcon)
                        close();
                else
                        showMinimized();
        }
}

void MainWindow::updateDynamicAppearance()
{
        d->tableServers->setShowGrid(gConfig.doomseeker.bDrawGridInServerTable);
        d->serverList->redraw();
        d->serverList->cleanUpForce();
}

// NOTE: Probably would be better if the master manager wasn't tied to the
//       MainWindow class?
void MainWindow::updateMasterAddresses()
{
        for (int i = 0; i < d->masterManager->numMasters(); i++)
                (*d->masterManager)[i]->updateAddress();
}

void MainWindow::updateServerFilter(const ServerListFilterInfo &filterInfo)
{
        d->serverList->applyFilter(filterInfo);
        d->lblServerFilterApplied->setVisible(filterInfo.isFilteringAnything());
}

ServerListCount MainWindow::sumServerListCount() const
{
        ServerListCount count;
        for (const ServersStatusWidget *status : d->serversStatusesWidgets.values())
        {
                count += status->count();
        }
        return count;
}

void MainWindow::updateRefreshProgress()
{
        ServerListCount count = sumServerListCount();
        d->taskbarProgress->setMaximum(count.numServers);
        d->taskbarProgress->setValue(count.numServers - count.numRefreshing);
        updateTrayIconTooltip(count);
}

void MainWindow::updateTrayIconTooltip(const ServerListCount &count)
{
        if (d->trayIcon != nullptr)
        {
                QString tip;
                tip += tr("Generic servers: %1\n").arg(count.numGenericServers);
                tip += tr("Custom servers: %1\n").arg(count.numCustomServers);
                tip += tr("LAN servers: %1\n").arg(count.numLanServers);
                tip += tr("Human players: %1").arg(count.numHumanPlayers);
                d->trayIcon->setToolTip(tip);
        }
}

void MainWindow::updateTrayIconTooltipAndLogTotalRefresh()
{
        ServerListCount count = sumServerListCount();
        updateTrayIconTooltip(count);

        if (d->bTotalRefreshInProcess)
        {
                gLog << tr("Finished refreshing. Servers on the list: %1 "
                                "(+%2 custom, +%3 LAN). Players: %4.")
                        .arg(count.numGenericServers).arg(count.numCustomServers)
                        .arg(count.numLanServers).arg(count.numHumanPlayers);
        }
}