/********************************************************************
 KWin - the KDE window manager
 This file is part of the KDE project.

Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

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.  If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "main.h"

// Qt
#include <QtDBus/QtDBus>
#include <QVBoxLayout>

// KDE
#include <KAboutApplicationDialog>
#include <KAction>
#include <KActionCollection>
#include <KCModuleProxy>
#include <KPluginFactory>
#include <KPluginInfo>
#include <KPluginLoader>
#include <KTabWidget>
#include <KTitleWidget>
#include <KServiceTypeTrader>
#include <KShortcutsEditor>

// own
#include "tabboxconfig.h"
#include "layoutconfig.h"

K_PLUGIN_FACTORY( KWinTabBoxConfigFactory, registerPlugin<KWin::KWinTabBoxConfig>(); )
K_EXPORT_PLUGIN( KWinTabBoxConfigFactory( "kcm_kwintabbox" ))

namespace KWin
{

KWinTabBoxConfigForm::KWinTabBoxConfigForm( QWidget* parent )
    : QWidget( parent )
    {
    setupUi( this );
    }

KWinTabBoxConfig::KWinTabBoxConfig( QWidget* parent, const QVariantList& args )
    : KCModule( KWinTabBoxConfigFactory::componentData(), parent, args )
    , m_config( KSharedConfig::openConfig( "kwinrc" ))
    {
    KTabWidget* tabWidget = new KTabWidget( this );
    m_primaryTabBoxUi = new KWinTabBoxConfigForm( tabWidget );
    m_alternativeTabBoxUi = new KWinTabBoxConfigForm( tabWidget );
    tabWidget->addTab( m_primaryTabBoxUi, i18n("Main") );
    tabWidget->addTab( m_alternativeTabBoxUi, i18n("Alternative") );
    QVBoxLayout* layout = new QVBoxLayout( this );
    KTitleWidget* infoLabel = new KTitleWidget( tabWidget );
    infoLabel->setText( i18n("Focus policy settings limit the functionality of navigating through windows."),
                        KTitleWidget::InfoMessage );
    infoLabel->setPixmap( KTitleWidget::InfoMessage, KTitleWidget::ImageLeft );
    layout->addWidget( infoLabel );
    layout->addWidget( tabWidget );

    m_configForm = new TabBox::LayoutConfig();

    m_editor = new KShortcutsEditor( m_primaryTabBoxUi, KShortcutsEditor::GlobalAction );
    // Shortcut config. The shortcut belongs to the component "kwin"!
    m_actionCollection = new KActionCollection( this, KComponentData("kwin") );
    m_actionCollection->setConfigGroup( "Navigation" );
    m_actionCollection->setConfigGlobal( true );
    KAction* a = qobject_cast<KAction*>(m_actionCollection->addAction( "Walk Through Windows" ));
    a->setProperty("isConfigurationAction", true);
    a->setText( i18n( "Walk Through Windows" ));
    a->setGlobalShortcut( KShortcut( Qt::ALT+Qt::Key_Tab ) );
    a = qobject_cast<KAction*>(m_actionCollection->addAction( "Walk Through Windows (Reverse)" ));
    a->setProperty("isConfigurationAction", true);
    a->setText( i18n( "Walk Through Windows (Reverse)" ));
    a->setGlobalShortcut( KShortcut( Qt::ALT+Qt::SHIFT+Qt::Key_Backtab ) );
    a = qobject_cast<KAction*>(m_actionCollection->addAction( "Walk Through Windows Alternative" ));
    a->setProperty("isConfigurationAction", true);
    a->setText( i18n( "Walk Through Windows Alternative" ));
    a->setGlobalShortcut( KShortcut(), KAction::ActiveShortcut );
    a = qobject_cast<KAction*>(m_actionCollection->addAction( "Walk Through Windows Alternative (Reverse)" ));
    a->setProperty("isConfigurationAction", true);
    a->setText( i18n( "Walk Through Windows Alternative (Reverse)" ));
    a->setGlobalShortcut( KShortcut(), KAction::ActiveShortcut );
    m_editor->addCollection( m_actionCollection, i18n( "Navigation" ) );
    layout->addWidget( m_editor );
    setLayout( layout );

    // search the effect names
    // TODO: way to recognize if a effect is not found
    KServiceTypeTrader* trader = KServiceTypeTrader::self();
    KService::List services;
    QString boxswitch;
    QString presentwindows;
    QString coverswitch;
    QString flipswitch;
    services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_boxswitch'");
    if( !services.isEmpty() )
        boxswitch = services.first()->name();
    services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_presentwindows'");
    if( !services.isEmpty() )
        presentwindows = services.first()->name();
    services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_coverswitch'");
    if( !services.isEmpty() )
        coverswitch = services.first()->name();
    services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_flipswitch'");
    if( !services.isEmpty() )
        flipswitch = services.first()->name();

    m_primaryTabBoxUi->effectCombo->addItem( i18n("No Effect") );
    m_primaryTabBoxUi->effectCombo->addItem( boxswitch );
    m_primaryTabBoxUi->effectCombo->addItem( presentwindows );
    m_primaryTabBoxUi->effectCombo->addItem( coverswitch );
    m_primaryTabBoxUi->effectCombo->addItem( flipswitch );

    m_alternativeTabBoxUi->effectCombo->addItem( i18n("No Effect") );
    m_alternativeTabBoxUi->effectCombo->addItem( boxswitch );
    m_alternativeTabBoxUi->effectCombo->addItem( presentwindows );
    m_alternativeTabBoxUi->effectCombo->addItem( coverswitch );
    m_alternativeTabBoxUi->effectCombo->addItem( flipswitch );

    // effect config and info button
    m_primaryTabBoxUi->effectInfoButton->setIcon( KIcon( "dialog-information" ));
    m_primaryTabBoxUi->effectConfigButton->setIcon( KIcon( "configure" ));
    m_alternativeTabBoxUi->effectInfoButton->setIcon( KIcon( "dialog-information" ));
    m_alternativeTabBoxUi->effectConfigButton->setIcon( KIcon( "configure" ));

    // combo boxes
    connect( m_primaryTabBoxUi->listModeCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
    connect( m_primaryTabBoxUi->switchingModeCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
    connect( m_primaryTabBoxUi->effectCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
    // check boxes
    connect( m_primaryTabBoxUi->showOutlineCheck, SIGNAL(stateChanged(int)), this, SLOT(changed()));
    connect( m_primaryTabBoxUi->showTabBox, SIGNAL(toggled(bool)), this, SLOT(changed()));
    connect( m_primaryTabBoxUi->highlightWindowCheck, SIGNAL(stateChanged(int)), this, SLOT(changed()));
    // combo boxes alternative
    connect( m_alternativeTabBoxUi->listModeCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
    connect( m_alternativeTabBoxUi->switchingModeCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
    connect( m_alternativeTabBoxUi->effectCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(changed()));
    // check boxes alternative
    connect( m_alternativeTabBoxUi->showOutlineCheck, SIGNAL(stateChanged(int)), this, SLOT(changed()));
    connect( m_alternativeTabBoxUi->showTabBox, SIGNAL(toggled(bool)), this, SLOT(changed()));
    connect( m_alternativeTabBoxUi->highlightWindowCheck, SIGNAL(stateChanged(int)), this, SLOT(changed()));

    // effects
    connect( m_primaryTabBoxUi->effectCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(slotEffectSelectionChanged(int)));
    connect( m_primaryTabBoxUi->effectInfoButton, SIGNAL(clicked(bool)), this, SLOT(slotAboutEffectClicked()));
    connect( m_primaryTabBoxUi->effectConfigButton, SIGNAL(clicked(bool)), this, SLOT(slotConfigureEffectClicked()));

    connect( m_primaryTabBoxUi->layoutConfigButton, SIGNAL(clicked(bool)), this, SLOT(slotConfigureLayoutClicked()));

    // effects alternative
    connect( m_alternativeTabBoxUi->effectCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(slotEffectSelectionChangedAlternative(int)));
    connect( m_alternativeTabBoxUi->effectInfoButton, SIGNAL(clicked(bool)), this, SLOT(slotAboutEffectClickedAlternative()));
    connect( m_alternativeTabBoxUi->effectConfigButton, SIGNAL(clicked(bool)), this, SLOT(slotConfigureEffectClickedAlternative()));

    connect( m_alternativeTabBoxUi->layoutConfigButton, SIGNAL(clicked(bool)), this, SLOT(slotConfigureLayoutClickedAlternative()));

    // check focus policy - we don't offer configs for unreasonable focus policies
    KConfigGroup config( m_config, "Windows" );
    QString policy = config.readEntry ("FocusPolicy", "ClickToFocus");
    if( (policy == "FocusUnderMouse") || (policy == "FocusStrictlyUnderMouse" ) )
        {
        tabWidget->setEnabled( false );
        infoLabel->show();
        }
    else
        infoLabel->hide();
    }

KWinTabBoxConfig::~KWinTabBoxConfig()
    {
    }

void KWinTabBoxConfig::load()
    {
    KCModule::load();

    KConfigGroup config( m_config, "TabBox" );
    KConfigGroup alternativeConfig( m_config, "TabBoxAlternative" );
    loadConfig( config, m_tabBoxConfig );
    loadConfig( alternativeConfig, m_tabBoxAlternativeConfig );

    // sync to ui
    updateUiFromConfig( m_primaryTabBoxUi, m_tabBoxConfig );
    updateUiFromConfig( m_alternativeTabBoxUi, m_tabBoxAlternativeConfig );

    // effects
    // Set current option to "none" if no plugin is activated.
    m_primaryTabBoxUi->effectCombo->setCurrentIndex( 0 );
    m_alternativeTabBoxUi->effectCombo->setCurrentIndex( 0 );
    KConfigGroup effectconfig( m_config, "Plugins" );
    KConfigGroup boxswitchconfig( m_config, "Effect-BoxSwitch" );
    if( effectEnabled( "boxswitch", effectconfig ) )
        {
        if( boxswitchconfig.readEntry( "TabBox", true) )
            m_primaryTabBoxUi->effectCombo->setCurrentIndex( 1 );
        if( boxswitchconfig.readEntry( "TabBoxAlternative", false) )
            m_alternativeTabBoxUi->effectCombo->setCurrentIndex( 1 );
        }
    KConfigGroup presentwindowsconfig( m_config, "Effect-PresentWindows");
    if( effectEnabled( "presentwindows", effectconfig ) )
        {
        if( presentwindowsconfig.readEntry("TabBox", false) )
            m_primaryTabBoxUi->effectCombo->setCurrentIndex( 2 );
        if( presentwindowsconfig.readEntry("TabBoxAlternative", false) )
            m_alternativeTabBoxUi->effectCombo->setCurrentIndex( 2 );
        }
    KConfigGroup coverswitchconfig( m_config, "Effect-CoverSwitch" );
    if( effectEnabled( "coverswitch", effectconfig ) )
        {
        if( coverswitchconfig.readEntry("TabBox", false) )
            m_primaryTabBoxUi->effectCombo->setCurrentIndex( 3 );
        if( coverswitchconfig.readEntry("TabBoxAlternative", false) )
            m_alternativeTabBoxUi->effectCombo->setCurrentIndex( 3 );
        }
    KConfigGroup flipswitchconfig( m_config, "Effect-FlipSwitch" );
    if( effectEnabled( "flipswitch", effectconfig ) )
        {
        if( flipswitchconfig.readEntry("TabBox", false) )
            m_primaryTabBoxUi->effectCombo->setCurrentIndex( 4 );
        if( flipswitchconfig.readEntry("TabBoxAlternative", false) )
            m_alternativeTabBoxUi->effectCombo->setCurrentIndex( 4 );
        }
    slotEffectSelectionChanged( m_primaryTabBoxUi->effectCombo->currentIndex() );
    slotEffectSelectionChangedAlternative( m_alternativeTabBoxUi->effectCombo->currentIndex() );

    emit changed( false );
    }

void KWinTabBoxConfig::loadConfig( const KConfigGroup& config, KWin::TabBox::TabBoxConfig& tabBoxConfig )
    {
    tabBoxConfig.setClientListMode( TabBox::TabBoxConfig::ClientListMode(
        config.readEntry<int>( "ListMode", TabBox::TabBoxConfig::defaultListMode() )));
    tabBoxConfig.setClientSwitchingMode( TabBox::TabBoxConfig::ClientSwitchingMode(
        config.readEntry<int>( "SwitchingMode", TabBox::TabBoxConfig::defaultSwitchingMode() )));
    tabBoxConfig.setLayout( TabBox::TabBoxConfig::LayoutMode(
        config.readEntry<int>( "LayoutMode", TabBox::TabBoxConfig::defaultLayoutMode() )));
    tabBoxConfig.setSelectedItemViewPosition( TabBox::TabBoxConfig::SelectedItemViewPosition(
        config.readEntry<int>( "SelectedItem", TabBox::TabBoxConfig::defaultSelectedItemViewPosition())));

    tabBoxConfig.setShowOutline( config.readEntry<bool>( "ShowOutline",
                                                             TabBox::TabBoxConfig::defaultShowOutline()));
    tabBoxConfig.setShowTabBox( config.readEntry<bool>( "ShowTabBox",
                                                            TabBox::TabBoxConfig::defaultShowTabBox()));
    tabBoxConfig.setHighlightWindows( config.readEntry<bool>( "HighlightWindows",
                                                                  TabBox::TabBoxConfig::defaultHighlightWindow()));

    tabBoxConfig.setMinWidth( config.readEntry<int>( "MinWidth",
                                                         TabBox::TabBoxConfig::defaultMinWidth()));
    tabBoxConfig.setMinHeight( config.readEntry<int>( "MinHeight",
                                                         TabBox::TabBoxConfig::defaultMinHeight()));

    tabBoxConfig.setLayoutName( config.readEntry<QString>( "LayoutName", TabBox::TabBoxConfig::defaultLayoutName()));
    tabBoxConfig.setSelectedItemLayoutName( config.readEntry<QString>( "SelectedLayoutName", TabBox::TabBoxConfig::defaultSelectedItemLayoutName()));
    }

void KWinTabBoxConfig::saveConfig( KConfigGroup& config, const KWin::TabBox::TabBoxConfig& tabBoxConfig )
    {
    // combo boxes
    config.writeEntry( "ListMode",           int(tabBoxConfig.clientListMode()) );
    config.writeEntry( "SwitchingMode",      int(tabBoxConfig.clientSwitchingMode()) );
    config.writeEntry( "LayoutMode",         int(tabBoxConfig.layout()) );
    config.writeEntry( "SelectedItem",       int(tabBoxConfig.selectedItemViewPosition()) );
    config.writeEntry( "LayoutName",         tabBoxConfig.layoutName() );
    config.writeEntry( "SelectedLayoutName", tabBoxConfig.selectedItemLayoutName() );

    // check boxes
    config.writeEntry( "ShowOutline",      tabBoxConfig.isShowOutline() );
    config.writeEntry( "ShowTabBox",       tabBoxConfig.isShowTabBox() );
    config.writeEntry( "HighlightWindows", tabBoxConfig.isHighlightWindows() );

    // spin boxes
    config.writeEntry( "MinWidth",  tabBoxConfig.minWidth() );
    config.writeEntry( "MinHeight", tabBoxConfig.minHeight() );
    config.sync();
    }

void KWinTabBoxConfig::save()
    {
    KCModule::save();
    KConfigGroup config( m_config, "TabBox" );

    // sync ui to config
    updateConfigFromUi( m_primaryTabBoxUi, m_tabBoxConfig );
    updateConfigFromUi( m_alternativeTabBoxUi, m_tabBoxAlternativeConfig );
    saveConfig( config, m_tabBoxConfig );
    config = KConfigGroup( m_config, "TabBoxAlternative" );
    saveConfig( config, m_tabBoxAlternativeConfig );

    // effects
    bool boxSwitch              = false;
    bool presentWindowSwitching = false;
    bool coverSwitch            = false;
    bool flipSwitch             = false;
    bool boxSwitchAlternative               = false;
    bool presentWindowSwitchingAlternative  = false;
    bool coverSwitchAlternative             = false;
    bool flipSwitchAlternative              = false;
    switch( m_primaryTabBoxUi->effectCombo->currentIndex() )
        {
        case 1:
            boxSwitch = true;
            break;
        case 2:
            presentWindowSwitching = true;
            break;
        case 3:
            coverSwitch = true;
            break;
        case 4:
            flipSwitch = true;
            break;
        default:
            break; // nothing
        }
    switch( m_alternativeTabBoxUi->effectCombo->currentIndex() )
        {
        case 1:
            boxSwitchAlternative = true;
            break;
        case 2:
            presentWindowSwitchingAlternative = true;
            break;
        case 3:
            coverSwitchAlternative = true;
            break;
        case 4:
            flipSwitchAlternative = true;
            break;
        default:
            break; // nothing
        }
    // activate effects if not active
    KConfigGroup effectconfig( m_config, "Plugins" );
    if( boxSwitch || boxSwitchAlternative )
        effectconfig.writeEntry("kwin4_effect_boxswitchEnabled", true);
    if( presentWindowSwitching || presentWindowSwitchingAlternative )
        effectconfig.writeEntry("kwin4_effect_presentwindowsEnabled", true);
    if( coverSwitch || coverSwitchAlternative )
        effectconfig.writeEntry("kwin4_effect_coverswitchEnabled", true);
    if( flipSwitch || flipSwitchAlternative )
        effectconfig.writeEntry("kwin4_effect_flipswitchEnabled", true);
    effectconfig.sync();
    KConfigGroup boxswitchconfig( m_config, "Effect-BoxSwitch" );
    boxswitchconfig.writeEntry( "TabBox", boxSwitch );
    boxswitchconfig.writeEntry( "TabBoxAlternative", boxSwitchAlternative );
    boxswitchconfig.sync();
    KConfigGroup presentwindowsconfig( m_config, "Effect-PresentWindows" );
    presentwindowsconfig.writeEntry( "TabBox", presentWindowSwitching );
    presentwindowsconfig.writeEntry( "TabBoxAlternative", presentWindowSwitchingAlternative );
    presentwindowsconfig.sync();
    KConfigGroup coverswitchconfig( m_config, "Effect-CoverSwitch" );
    coverswitchconfig.writeEntry( "TabBox", coverSwitch );
    coverswitchconfig.writeEntry( "TabBoxAlternative", coverSwitchAlternative );
    coverswitchconfig.sync();
    KConfigGroup flipswitchconfig( m_config, "Effect-FlipSwitch" );
    flipswitchconfig.writeEntry( "TabBox", flipSwitch );
    flipswitchconfig.writeEntry( "TabBoxAlternative", flipSwitchAlternative );
    flipswitchconfig.sync();

    m_editor->save();

    // Reload KWin.
    QDBusMessage message = QDBusMessage::createSignal( "/KWin", "org.kde.KWin", "reloadConfig" );
    QDBusConnection::sessionBus().send( message );

    emit changed( false );
    }

void KWinTabBoxConfig::defaults()
    {
    // combo boxes
    m_primaryTabBoxUi->listModeCombo->setCurrentIndex( TabBox::TabBoxConfig::defaultListMode() );
    m_primaryTabBoxUi->switchingModeCombo->setCurrentIndex( TabBox::TabBoxConfig::defaultSwitchingMode() );

    // checkboxes
    m_primaryTabBoxUi->showOutlineCheck->setChecked( TabBox::TabBoxConfig::defaultShowOutline() );
    m_primaryTabBoxUi->showTabBox->setChecked( TabBox::TabBoxConfig::defaultShowTabBox() );
    m_primaryTabBoxUi->highlightWindowCheck->setChecked( TabBox::TabBoxConfig::defaultHighlightWindow() );

    // effects
    m_primaryTabBoxUi->effectCombo->setCurrentIndex( 1 );

    // alternative
    // combo boxes
    m_alternativeTabBoxUi->listModeCombo->setCurrentIndex( TabBox::TabBoxConfig::defaultListMode() );
    m_alternativeTabBoxUi->switchingModeCombo->setCurrentIndex( TabBox::TabBoxConfig::defaultSwitchingMode() );

    // checkboxes
    m_alternativeTabBoxUi->showOutlineCheck->setChecked( TabBox::TabBoxConfig::defaultShowOutline() );
    m_alternativeTabBoxUi->showTabBox->setChecked( TabBox::TabBoxConfig::defaultShowTabBox() );
    m_alternativeTabBoxUi->highlightWindowCheck->setChecked( TabBox::TabBoxConfig::defaultHighlightWindow() );

    // effects
    m_alternativeTabBoxUi->effectCombo->setCurrentIndex( 0 );

    m_editor->allDefault();

    emit changed( true );
    }

bool KWinTabBoxConfig::effectEnabled(const QString& effect, const KConfigGroup& cfg) const
    {
    KService::List services = KServiceTypeTrader::self()->query(
        "KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_" + effect + "'" );
    if( services.isEmpty())
        return false;
    QVariant v = services.first()->property( "X-KDE-PluginInfo-EnabledByDefault" );
    return cfg.readEntry( "kwin4_effect_" + effect + "Enabled", v.toBool() );
    }

void KWinTabBoxConfig::updateUiFromConfig( KWinTabBoxConfigForm* ui, const KWin::TabBox::TabBoxConfig& config )
    {
    // combo boxes
    ui->listModeCombo->setCurrentIndex( config.clientListMode() );
    ui->switchingModeCombo->setCurrentIndex( config.clientSwitchingMode() );

    // check boxes
    ui->showOutlineCheck->setChecked( config.isShowOutline() );
    ui->showTabBox->setChecked( config.isShowTabBox());
    ui->highlightWindowCheck->setChecked( config.isHighlightWindows() );
    }

void KWinTabBoxConfig::updateConfigFromUi( const KWin::KWinTabBoxConfigForm* ui, TabBox::TabBoxConfig& config )
    {
    config.setClientListMode( TabBox::TabBoxConfig::ClientListMode(ui->listModeCombo->currentIndex()) );
    config.setClientSwitchingMode( TabBox::TabBoxConfig::ClientSwitchingMode(ui->switchingModeCombo->currentIndex()) );

    config.setShowOutline( ui->showOutlineCheck->isChecked() );
    config.setShowTabBox( ui->showTabBox->isChecked() );
    config.setHighlightWindows( ui->highlightWindowCheck->isChecked() );
    }

void KWinTabBoxConfig::slotEffectSelectionChanged( int index )
    {
    effectSelectionChanged( m_primaryTabBoxUi, index );
    }

void KWinTabBoxConfig::slotEffectSelectionChangedAlternative( int index )
    {
    effectSelectionChanged( m_alternativeTabBoxUi, index );
    }

void KWinTabBoxConfig::effectSelectionChanged( KWinTabBoxConfigForm* ui, int index )
    {
    bool enabled = false;
    if( index > 0 )
        enabled = true;
    ui->effectInfoButton->setEnabled( enabled );
    ui->effectConfigButton->setEnabled( enabled );
    }

void KWinTabBoxConfig::slotAboutEffectClicked()
    {
    aboutEffectClicked( m_primaryTabBoxUi );
    }

void KWinTabBoxConfig::slotAboutEffectClickedAlternative()
    {
    aboutEffectClicked( m_alternativeTabBoxUi );
    }

void KWinTabBoxConfig::aboutEffectClicked( KWinTabBoxConfigForm* ui )
    {
    KServiceTypeTrader* trader = KServiceTypeTrader::self();
    KService::List services;
    QString effect;
    switch( ui->effectCombo->currentIndex() )
        {
        case 1:
            effect = "boxswitch";
            break;
        case 2:
            effect = "presentwindows";
            break;
        case 3:
            effect = "coverswitch";
            break;
        case 4:
            effect = "flipswitch";
            break;
        default:
            return;
        }
    services = trader->query("KWin/Effect", "[X-KDE-PluginInfo-Name] == 'kwin4_effect_" + effect + "'");
    if( services.isEmpty() )
        return;
    KPluginInfo pluginInfo( services.first() );

    const QString name    = pluginInfo.name();
    const QString comment = pluginInfo.comment();
    const QString author  = pluginInfo.author();
    const QString email   = pluginInfo.email();
    const QString website = pluginInfo.website();
    const QString version = pluginInfo.version();
    const QString license = pluginInfo.license();
    const QString icon    = pluginInfo.icon();

    KAboutData aboutData(name.toUtf8(), name.toUtf8(), ki18n(name.toUtf8()), version.toUtf8(), ki18n(comment.toUtf8()), KAboutLicense::byKeyword(license).key(), ki18n(QByteArray()), ki18n(QByteArray()), website.toLatin1());
    aboutData.setProgramIconName( icon );
    const QStringList authors = author.split(',');
    const QStringList emails = email.split(',');
    int i = 0;
    if( authors.count() == emails.count() )
        {
        foreach( const QString &author, authors )
            {
            if( !author.isEmpty() )
                {
                aboutData.addAuthor(ki18n(author.toUtf8()), ki18n(QByteArray()), emails[i].toUtf8(), 0);
                }
            i++;
            }
        }
    KAboutApplicationDialog aboutPlugin( &aboutData, this );
    aboutPlugin.exec();
    }

void KWinTabBoxConfig::slotConfigureEffectClicked()
    {
    configureEffectClicked( m_primaryTabBoxUi );
    }

void KWinTabBoxConfig::slotConfigureEffectClickedAlternative()
    {
    configureEffectClicked( m_alternativeTabBoxUi );
    }

void KWinTabBoxConfig::configureEffectClicked( KWinTabBoxConfigForm* ui )
    {
    QString effect;
    switch( ui->effectCombo->currentIndex() )
        {
        case 1:
            effect = "boxswitch_config";
            break;
        case 2:
            effect = "presentwindows_config";
            break;
        case 3:
            effect = "coverswitch_config";
            break;
        case 4:
            effect = "flipswitch_config";
            break;
        default:
            return;
        }
    KCModuleProxy* proxy = new KCModuleProxy( effect );
    KDialog configDialog( this );
    configDialog.setWindowTitle( ui->effectCombo->currentText() );
    configDialog.setButtons( KDialog::Ok | KDialog::Cancel | KDialog::Default );
    connect(&configDialog, SIGNAL(defaultClicked()), proxy, SLOT(defaults()));

    QWidget *showWidget = new QWidget( &configDialog );
    QVBoxLayout *layout = new QVBoxLayout;
    showWidget->setLayout( layout );
    layout->addWidget( proxy );
    layout->insertSpacing( -1, KDialog::marginHint() );
    configDialog.setMainWidget( showWidget );

    if( configDialog.exec() == QDialog::Accepted )
        {
        proxy->save();
        }
    else
        {
        proxy->load();
        }
    }

void KWinTabBoxConfig::slotConfigureLayoutClicked()
    {
    KDialog* dialog = new KDialog( this );
    dialog->setCaption( i18n("Configure Layout") );
    dialog->setButtons( KDialog::Ok | KDialog::Cancel | KDialog::Default );
    connect( dialog, SIGNAL(okClicked()), this, SLOT(slotLayoutChanged()));

    m_configForm->setConfig( m_tabBoxConfig );
    dialog->setMainWidget( m_configForm );

    dialog->enableButtonApply( false );
    dialog->show();
    }

void KWinTabBoxConfig::slotLayoutChanged()
    {
    m_tabBoxConfig = m_configForm->config();
    emit changed( true );
    }

void KWinTabBoxConfig::slotConfigureLayoutClickedAlternative()
    {
    KDialog* dialog = new KDialog( this );
    dialog->setCaption( i18n("Configure Layout") );
    dialog->setButtons( KDialog::Ok | KDialog::Cancel | KDialog::Default );
    connect( dialog, SIGNAL(okClicked()), this, SLOT(slotLayoutChangedAlternative()));

    m_configForm->setConfig( m_tabBoxAlternativeConfig );
    dialog->setMainWidget( m_configForm );

    dialog->enableButtonApply( false );
    dialog->show();
    }

void KWinTabBoxConfig::slotLayoutChangedAlternative()
    {
    m_tabBoxAlternativeConfig = m_configForm->config();
    emit changed( true );
    }

} // namespace