/*****************************************************************

Copyright (c) 1996-2000 the kicker authors. See file AUTHORS.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

******************************************************************/

#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <dmctl.h>

#include <tqhbox.h>
#include <tqimage.h>
#include <tqlabel.h>
#include <tqpainter.h>
#include <tqstyle.h>
#include <tqtimer.h>
#include <tqtooltip.h>
#include <tqeventloop.h>

#include <dcopclient.h>
#include <tdeapplication.h>
#include <tdeabouttde.h>
#include <tdeaction.h>
#include <kbookmarkmenu.h>
#include <tdeconfig.h>
#include <kdebug.h>
#include <tdeglobal.h>
#include <tdeglobalsettings.h>
#include <kiconloader.h>
#include <klineedit.h>
#include <tdelocale.h>
#include <tdemessagebox.h>
#include <kstandarddirs.h>
#include <tdetoolbarbutton.h>
#include <twin.h>
#include <popupmenutop.h>

#include "client_mnu.h"
#include "container_base.h"
#include "global.h"
#include "kbutton.h"
#include "kicker.h"
#include "kickerSettings.h"
#include "konqbookmarkmanager.h"
#include "menuinfo.h"
#include "menumanager.h"
#include "popupmenutitle.h"
#include "quickbrowser_mnu.h"
#include "recentapps.h"
#include "clicklineedit.h"

#include "k_mnu.h"
#include "k_mnu.moc"

const int PanelKMenu::searchLineID(23140 /*whatever*/);

PanelKMenu::PanelKMenu()
  : PanelServiceMenu(TQString::null, TQString::null, 0, "KMenu")
  , bookmarkMenu(0)
  , bookmarkOwner(0)
  , displayRepaired(FALSE)
{
    static const TQCString dcopObjId("KMenu");
    DCOPObject::setObjId(dcopObjId);
    // set the first client id to some arbitrarily large value.
    client_id = 10000;
    // Don't automatically clear the main menu.
    disableAutoClear();
    actionCollection = new TDEActionCollection(this);
    setCaption(i18n("TDE Menu"));
    connect(Kicker::the(), TQT_SIGNAL(configurationChanged()),
            this, TQT_SLOT(configChanged()));
    DCOPClient *dcopClient = TDEApplication::dcopClient();
    dcopClient->connectDCOPSignal(0, "appLauncher",
        "serviceStartedByStorageId(TQString,TQString)",
        dcopObjId,
        "slotServiceStartedByStorageId(TQString,TQString)",
        false);
    displayRepairTimer = new TQTimer( this );
    connect( displayRepairTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(repairDisplay()) );
}

PanelKMenu::~PanelKMenu()
{
    clearSubmenus();
    delete bookmarkMenu;
    delete bookmarkOwner;
}

void PanelKMenu::slotServiceStartedByStorageId(TQString starter,
                                               TQString storageId)
{
    if (starter != "kmenu")
    {
        kdDebug() << "KMenu - updating recently used applications: " <<
            storageId << endl;
        KService::Ptr service = KService::serviceByStorageId(storageId);
        updateRecentlyUsedApps(service);
    }
}

void PanelKMenu::hideMenu()
{
    hide();

#ifdef USE_QT4
    // The hacks below aren't needed any more because Qt4 supports true transparency for the fading logout screen
#else // USE_QT4
    // Try to redraw the area under the menu
    // Qt makes this surprisingly difficult to do in a timely fashion!
    while (isShown() == true)
        kapp->eventLoop()->processEvents(1000);
    TQTimer *windowtimer = new TQTimer( this );
    connect( windowtimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(windowClearTimeout()) );
    windowTimerTimedOut = false;
    windowtimer->start( 0, TRUE );	// Wait for all window system events to be processed
    while (windowTimerTimedOut == false)
        kapp->eventLoop()->processEvents(TQEventLoop::ExcludeUserInput, 1000);

    // HACK
    // The TDE Menu takes an unknown amount of time to disappear, and redrawing
    // the underlying window(s) also takes time.  This should allow both of those
    // events to occur (unless you're on a 200MHz Pentium 1 or similar ;-))
    // thereby removing a bad shutdown screen artifact while still providing
    // a somewhat snappy user interface.
    TQTimer *delaytimer = new TQTimer( this );
    connect( delaytimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(windowClearTimeout()) );
    windowTimerTimedOut = false;
    delaytimer->start( 100, TRUE );	// Wait for 100 milliseconds
    while (windowTimerTimedOut == false)
        kapp->eventLoop()->processEvents(TQEventLoop::ExcludeUserInput, 1000);
#endif // USE_QT4
}

void PanelKMenu::windowClearTimeout()
{
    windowTimerTimedOut = true;
}

bool PanelKMenu::loadSidePixmap()
{
    if (!KickerSettings::useSidePixmap() || KickerSettings::useTopSide())
    {
        return false;
    }

    TQString sideName = KickerSettings::sidePixmapName();
    TQString sideTileName = KickerSettings::sideTileName();

    TQImage image;
    image.load(locate("data", "kicker/pics/" + sideName));

    if (image.isNull())
    {
        kdDebug(1210) << "Can't find a side pixmap" << endl;
        return false;
    }

    KickerLib::colorize(image);
    sidePixmap.convertFromImage(image);

    image.load(locate("data", "kicker/pics/" + sideTileName));

    if (image.isNull())
    {
        kdDebug(1210) << "Can't find a side tile pixmap" << endl;
        return false;
    }

    KickerLib::colorize(image);
    sideTilePixmap.convertFromImage(image);

    if (sidePixmap.width() != sideTilePixmap.width())
    {
        kdDebug(1210) << "Pixmaps have to be the same size" << endl;
        return false;
    }

    // pretile the pixmap to a height of at least 100 pixels
    if (sideTilePixmap.height() < 100)
    {
        int tiles = (int)(100 / sideTilePixmap.height()) + 1;
        TQPixmap preTiledPixmap(sideTilePixmap.width(), sideTilePixmap.height() * tiles);
        TQPainter p(&preTiledPixmap);
        p.drawTiledPixmap(preTiledPixmap.rect(), sideTilePixmap);
        sideTilePixmap = preTiledPixmap;
    }

    return true;
}

void PanelKMenu::paletteChanged()
{
    if (!loadSidePixmap())
    {
        sidePixmap = sideTilePixmap = TQPixmap();
        setMinimumSize( sizeHint() );
    }
}

/* A MenuHBox is supposed to be inserted into a menu.
 * You can set a special widget in the hbox which will
 * get the focus if the user moves up or down with the
 * cursor keys
 */
class MenuHBox : public TQHBox {
public:
    MenuHBox(PanelKMenu* parent) : TQHBox(parent)
    {
    }

    virtual void keyPressEvent(TQKeyEvent *e)
    {

    }
private:
    PanelKMenu *parent;
};

void PanelKMenu::initialize()
{
//    kdDebug(1210) << "PanelKMenu::initialize()" << endl;
    updateRecent();

    if (initialized())
    {
        return;
    }

    if (loadSidePixmap())
    {
        // in case we've been through here before, let's disconnect
        disconnect(kapp, TQT_SIGNAL(tdedisplayPaletteChanged()),
                   this, TQT_SLOT(paletteChanged()));
        connect(kapp, TQT_SIGNAL(tdedisplayPaletteChanged()),
                this, TQT_SLOT(paletteChanged()));
    }
    else
    {
        sidePixmap = sideTilePixmap = TQPixmap();
    }

    // add services
    PanelServiceMenu::initialize();

    // Insert search field
    if (KickerSettings::useSearchBar()) {
        TQHBox* hbox = new TQHBox( this );
        TDEToolBarButton *clearButton = new TDEToolBarButton( "locationbar_erase", 0, hbox );
        searchEdit = new KPIM::ClickLineEdit(hbox, " "+i18n("Press '/' to search..."));
        hbox->setFocusPolicy(TQ_StrongFocus);
        hbox->setFocusProxy(searchEdit);
        hbox->setSpacing( 3 );
        connect(clearButton, TQT_SIGNAL(clicked()), searchEdit, TQT_SLOT(clear()));
        connect(this, TQT_SIGNAL(aboutToHide()), this, TQT_SLOT(slotClearSearch()));
        connect(searchEdit, TQT_SIGNAL(textChanged(const TQString&)),
            this, TQT_SLOT( slotUpdateSearch( const TQString&)));
        insertItem(hbox, searchLineID, 0);
    } else {
        searchEdit = NULL;
    }

    //TQToolTip::add(clearButton, i18n("Clear Search"));
    //TQToolTip::add(searchEdit, i18n("Enter the name of an application"));

    if (KickerSettings::showMenuTitles())
    {
        int id;
        id = insertItem(new PopupMenuTitle(i18n("All Applications"), font()), -1 /* id */, 0);
        setItemEnabled( id, false );
        id = insertItem(new PopupMenuTitle(i18n("Actions"), font()), -1 /* id */, -1);
        setItemEnabled( id, false );
    }

    // create recent menu section
    createRecentMenuItems();

    bool need_separator = false;

    // insert bookmarks
    if (KickerSettings::useBookmarks() && kapp->authorizeTDEAction("bookmarks"))
    {
        // Need to create a new popup each time, it's deleted by subMenus.clear()
        TDEPopupMenu * bookmarkParent = new TDEPopupMenu( this, "bookmarks" );
        if(!bookmarkOwner)
            bookmarkOwner = new KBookmarkOwner;
        delete bookmarkMenu; // can't reuse old one, the popup has been deleted
        bookmarkMenu = new KBookmarkMenu( KonqBookmarkManager::self(), bookmarkOwner, bookmarkParent, actionCollection, true, false );

        insertItem(KickerLib::menuIconSet("bookmark"), i18n("Bookmarks"), bookmarkParent);

        subMenus.append(bookmarkParent);
        need_separator = true;
    }

    // insert quickbrowser
    if (KickerSettings::useBrowser())
    {
        PanelQuickBrowser *browserMnu = new PanelQuickBrowser(this);
        browserMnu->initialize();

        insertItem(KickerLib::menuIconSet("kdisknav"),
                   i18n("Quick Browser"),
                   KickerLib::reduceMenu(browserMnu));
        subMenus.append(browserMnu);
        need_separator = true;
    }

    // insert dynamic menus
    TQStringList menu_ext = KickerSettings::menuExtensions();
    if (!menu_ext.isEmpty())
    {
        for (TQStringList::ConstIterator it=menu_ext.begin(); it!=menu_ext.end(); ++it)
        {
            MenuInfo info(*it);
            if (!info.isValid())
               continue;

            KPanelMenu *menu = info.load();
            if (menu)
            {
                insertItem(KickerLib::menuIconSet(info.icon()), info.name(), menu);
                dynamicSubMenus.append(menu);
                need_separator = true;
            }
        }
    }

    if (need_separator)
        insertSeparator();

    // insert client menus, if any
    if (clients.count() > 0) {
        TQIntDictIterator<KickerClientMenu> it(clients);
        while (it){
            if (it.current()->text.at(0) != '.')
                insertItem(
                    it.current()->icon,
                    it.current()->text,
                    it.current(),
                    it.currentKey()
                    );
            ++it;
        }
        insertSeparator();
    }

    // run command
    if (kapp->authorize("run_command"))
    {
        insertItem(KickerLib::menuIconSet("system-run"),
                   i18n("Run Command..."),
                   this,
                   TQT_SLOT( slotRunCommand()));
        insertSeparator();
    }

    if (DM().isSwitchable() && kapp->authorize("switch_user"))
    {
        sessionsMenu = new TQPopupMenu( this );
        insertItem(KickerLib::menuIconSet("switchuser"), i18n("Switch User"), sessionsMenu);
        connect( sessionsMenu, TQT_SIGNAL(aboutToShow()), TQT_SLOT(slotPopulateSessions()) );
        connect( sessionsMenu, TQT_SIGNAL(activated(int)), TQT_SLOT(slotSessionActivated(int)) );
    }

    /*
      If  the user configured ksmserver to
    */
    TDEConfig ksmserver("ksmserverrc", false, false);
    ksmserver.setGroup("General");
    if (ksmserver.readEntry( "loginMode" ) == "restoreSavedSession")
    {
        insertItem(KickerLib::menuIconSet("filesave"), i18n("Save Session"), this, TQT_SLOT(slotSaveSession()));
    }

    if (kapp->authorize("lock_screen"))
    {
        insertItem(KickerLib::menuIconSet("system-lock-screen"), i18n("Lock Session"), this, TQT_SLOT(slotLock()));
    }

    if (kapp->authorize("logout"))
    {
        insertItem(KickerLib::menuIconSet("system-log-out"), i18n("Log Out..."), this, TQT_SLOT(slotLogout()));
    }

#if 0
    // WABA: tear off handles don't work together with dynamically updated
    // menus. We can't update the menu while torn off, and we don't know
    // when it is torn off.
    if (TDEGlobalSettings::insertTearOffHandle())
      insertTearOffHandle();
#endif

    if (displayRepaired == FALSE) {
        displayRepairTimer->start(5, FALSE);
        displayRepaired = TRUE;
    }

    setInitialized(true);
}

void PanelKMenu::repairDisplay(void) {
    if (isShown() == true) {
        displayRepairTimer->stop();

        // Now do a nasty hack to prevent search bar merging into the side image
        // This forces a layout/repaint of the qpopupmenu
        repaint();			// This ensures that the side bar image was applied
        styleChange(style());		// This forces a call to the private function updateSize(TRUE) inside the qpopupmenu.
        update();			// This repaints the entire popup menu to apply the widget size/alignment changes made above
    }
}

int PanelKMenu::insertClientMenu(KickerClientMenu *p)
{
    int id = client_id;
    clients.insert(id, p);
    slotClear();
    return id;
}

void PanelKMenu::removeClientMenu(int id)
{
    clients.remove(id);
    removeItem(id);
    slotClear();
}

extern int kicker_screen_number;

void PanelKMenu::slotLock()
{
    TQCString appname( "kdesktop" );
    if ( kicker_screen_number ) {
        appname.sprintf("kdesktop-screen-%d", kicker_screen_number);
    }
    TQCString replyType;
    TQByteArray replyData;
    // Block here until lock is complete
    // If this is not done the desktop of the locked session will be shown after VT switch until the lock fully engages!
    kapp->dcopClient()->call(appname, "KScreensaverIface", "lock()", TQCString(""), replyType, replyData);
}

void PanelKMenu::slotLogout()
{
    hide();
    kapp->requestShutDown();
}

void PanelKMenu::slotPopulateSessions()
{
    int p = 0;
    DM dm;

    sessionsMenu->clear();
    if (kapp->authorize("start_new_session") && (p = dm.numReserve()) >= 0)
    {
        if (kapp->authorize("lock_screen")) {
            sessionsMenu->insertItem(SmallIconSet("system-lock-screen"), i18n("Lock Current && Start New Session"), 100 );
        }
        sessionsMenu->insertItem(SmallIconSet("switchuser"), i18n("Start New Session"), 101 );
        if (!p) {
            sessionsMenu->setItemEnabled( 100, false );
            sessionsMenu->setItemEnabled( 101, false );
        }
        sessionsMenu->insertSeparator();
    }
    SessList sess;
    if (dm.localSessions( sess ))
        for (SessList::ConstIterator it = sess.begin(); it != sess.end(); ++it) {
            int id = sessionsMenu->insertItem( DM::sess2Str( *it ), (*it).vt );
            if (!(*it).vt)
                sessionsMenu->setItemEnabled( id, false );
            if ((*it).self)
                sessionsMenu->setItemChecked( id, true );
        }
}

void PanelKMenu::slotSessionActivated( int ent )
{
    if (ent == 100)
        doNewSession( true );
    else if (ent == 101)
        doNewSession( false );
    else if (!sessionsMenu->isItemChecked( ent ))
        DM().lockSwitchVT( ent );
}

void PanelKMenu::doNewSession( bool lock )
{
    int result = KMessageBox::warningContinueCancel(
        TQT_TQWIDGET(kapp->desktop()->screen(kapp->desktop()->screenNumber(this))),
        i18n("<p>You have chosen to open another desktop session.<br>"
               "The current session will be hidden "
               "and a new login screen will be displayed.<br>"
               "An F-key is assigned to each session; "
               "F%1 is usually assigned to the first session, "
               "F%2 to the second session and so on. "
               "You can switch between sessions by pressing "
               "Ctrl, Alt and the appropriate F-key at the same time. "
               "Additionally, the TDE Panel and Desktop menus have "
               "actions for switching between sessions.</p>")
                           .arg(7).arg(8),
        i18n("Warning - New Session"),
        KGuiItem(i18n("&Start New Session"), "fork"),
        ":confirmNewSession",
        KMessageBox::PlainCaption | KMessageBox::Notify);

    if (result==KMessageBox::Cancel)
        return;

    if (lock) {
        slotLock();
    }

    DM().startReserve();
}

void PanelKMenu::slotSaveSession()
{
    TQByteArray data;
    kapp->dcopClient()->send( "ksmserver", "default",
                              "saveCurrentSession()", data );
}

void PanelKMenu::slotRunCommand()
{
    TQByteArray data;
    TQCString appname( "kdesktop" );
    if ( kicker_screen_number )
        appname.sprintf("kdesktop-screen-%d", kicker_screen_number);

    kapp->updateRemoteUserTimestamp( appname );
    kapp->dcopClient()->send( appname, "KDesktopIface",
                              "popupExecuteCommand()", data );
}

void PanelKMenu::slotEditUserContact()
{
}

void PanelKMenu::setMinimumSize(const TQSize & s)
{
    KPanelMenu::setMinimumSize(s.width() + sidePixmap.width(), s.height());
}

void PanelKMenu::setMaximumSize(const TQSize & s)
{
    KPanelMenu::setMaximumSize(s.width() + sidePixmap.width(), s.height());
}

void PanelKMenu::setMinimumSize(int w, int h)
{
    KPanelMenu::setMinimumSize(w + sidePixmap.width(), h);
}

void PanelKMenu::setMaximumSize(int w, int h)
{
  KPanelMenu::setMaximumSize(w + sidePixmap.width(), h);
}

void PanelKMenu::showMenu()
{
    kdDebug( 1210 ) << "PanelKMenu::showMenu()" << endl;
    PanelPopupButton *kButton = MenuManager::the()->findKButtonFor(this);
    if (kButton)
    {
        adjustSize();
        kButton->showMenu();
    }
    else
    {
        show();
    }
}

TQRect PanelKMenu::sideImageRect()
{
    return TQStyle::visualRect( TQRect( frameWidth(), frameWidth(), sidePixmap.width(),
                                      height() - 2*frameWidth() ), this );
}

void PanelKMenu::resizeEvent(TQResizeEvent * e)
{
//    kdDebug(1210) << "PanelKMenu::resizeEvent():" << endl;
//    kdDebug(1210) << geometry().width() << ", " << geometry().height() << endl;

    PanelServiceMenu::resizeEvent(e);

    setFrameRect( TQStyle::visualRect( TQRect( sidePixmap.width(), 0,
                                      width() - sidePixmap.width(), height() ), this ) );
}

//Workaround Qt3.3.x sizing bug, by ensuring we're always wide enough.
void PanelKMenu::resize(int width, int height)
{
    width = kMax(width, maximumSize().width());
    PanelServiceMenu::resize(width, height);
}

TQSize PanelKMenu::sizeHint() const
{
    TQSize s = PanelServiceMenu::sizeHint();
//    kdDebug(1210) << "PanelKMenu::sizeHint()" << endl;
//    kdDebug(1210) << s.width() << ", " << s.height() << endl;
    return s;
}

void PanelKMenu::paintEvent(TQPaintEvent * e)
{
    if (sidePixmap.isNull()) {
        PanelServiceMenu::paintEvent(e);
        return;
    }

    TQPainter p(this);
    p.setClipRegion(e->region());

    style().tqdrawPrimitive( TQStyle::PE_PanelPopup, &p,
                           TQRect( 0, 0, width(), height() ),
                           colorGroup(), TQStyle::Style_Default,
                           TQStyleOption( frameWidth(), 0 ) );

    TQRect r = sideImageRect();
    r.setBottom( r.bottom() - sidePixmap.height() );
    if ( r.intersects( e->rect() ) )
    {
        p.drawTiledPixmap( r, sideTilePixmap );
    }

    r = sideImageRect();
    r.setTop( r.bottom() - sidePixmap.height() );
    if ( r.intersects( e->rect() ) )
    {
        TQRect drawRect = r.intersect( e->rect() );
        TQRect pixRect = drawRect;
        pixRect.moveBy( -r.left(), -r.top() );
        p.drawPixmap( drawRect.topLeft(), sidePixmap, pixRect );
    }

    drawContents( &p );
}

TQMouseEvent PanelKMenu::translateMouseEvent( TQMouseEvent* e )
{
    TQRect side = sideImageRect();

    if ( !side.contains( e->pos() ) )
        return *e;

    TQPoint newpos( e->pos() );
    TQApplication::reverseLayout() ?
        newpos.setX( newpos.x() - side.width() ) :
        newpos.setX( newpos.x() + side.width() );
    TQPoint newglobal( e->globalPos() );
    TQApplication::reverseLayout() ?
        newglobal.setX( newpos.x() - side.width() ) :
        newglobal.setX( newpos.x() + side.width() );

    return TQMouseEvent( e->type(), newpos, newglobal, e->button(), e->state() );
}

void PanelKMenu::mousePressEvent(TQMouseEvent * e)
{
    TQMouseEvent newEvent = translateMouseEvent(e);
    PanelServiceMenu::mousePressEvent( &newEvent );
}

void PanelKMenu::mouseReleaseEvent(TQMouseEvent *e)
{
    TQMouseEvent newEvent = translateMouseEvent(e);
    PanelServiceMenu::mouseReleaseEvent( &newEvent );
}

void PanelKMenu::mouseMoveEvent(TQMouseEvent *e)
{
    TQMouseEvent newEvent = translateMouseEvent(e);
    PanelServiceMenu::mouseMoveEvent( &newEvent );
}

void PanelKMenu::slotUpdateSearch(const TQString& searchString)
{
    kdDebug() << "Searching for " << searchString << endl;
    setSearchString(searchString);
}

void PanelKMenu::slotClearSearch()
{
    if (searchEdit && searchEdit->text().isEmpty() == false) {
        TQTimer::singleShot(0, searchEdit, TQT_SLOT(clear()));
    }
}

void PanelKMenu::keyPressEvent(TQKeyEvent* e)
{
    // We move the focus to the search field if the
    // user presses '/'. This is the same shortcut as
    // konqueror is using, and afaik it's hardcoded both
    // here and there. This sucks badly for many non-us
    // keyboard layouts, but for the sake of consistency
    // we follow konqueror.
    if (!searchEdit) return KPanelMenu::keyPressEvent(e);

    if (e->key() == TQt::Key_Slash && !searchEdit->hasFocus()) {
        if (indexOf(searchLineID) >=0 ) {
            setActiveItem(indexOf(searchLineID));
        }
    }
    else if (e->key() == TQt::Key_Escape && searchEdit->text().isEmpty() == false) {
        searchEdit->clear();
    }
    else if (e->key() == TQt::Key_Delete && !searchEdit->hasFocus() &&
        searchEdit->text().isEmpty() == false)
    {
        searchEdit->clear();
    }
    else {
        KPanelMenu::keyPressEvent(e);
    }
}

void PanelKMenu::configChanged()
{
    RecentlyLaunchedApps::the().m_bNeedToUpdate = false;
    RecentlyLaunchedApps::the().configChanged();
    PanelServiceMenu::configChanged();
}

// create and fill "recent" section at first
void PanelKMenu::createRecentMenuItems()
{
    RecentlyLaunchedApps::the().m_nNumMenuItems = 0;

    TQStringList RecentApps;
    RecentlyLaunchedApps::the().getRecentApps(RecentApps);

    if (RecentApps.count() > 0)
    {
        bool bSeparator = KickerSettings::showMenuTitles();
        bool bTitleTop = KickerSettings::useTopSide();
        int nId = serviceMenuEndId() + 1;

        int nIndex;
        if( bTitleTop ) {
            nIndex = KickerSettings::showMenuTitles() ? 2 : 0;
        } else {
            nIndex = KickerSettings::showMenuTitles() ? 1 : 0;
        }

        for (TQValueList<TQString>::ConstIterator it =
             RecentApps.fromLast(); /*nop*/; --it)
        {
            KService::Ptr s = KService::serviceByDesktopPath(*it);
            if (!s)
            {
                RecentlyLaunchedApps::the().removeItem(*it);
            }
            else
            {
                if (bSeparator)
                {
                    bSeparator = false;
                    int id = insertItem(
                        new PopupMenuTitle(
                            RecentlyLaunchedApps::the().caption(), font()),
                        serviceMenuEndId(), 0);
                    setItemEnabled( id, false );
                    if( bTitleTop) {
                        id = insertItem(new PopupMenuTop(),serviceMenuEndId(),0);
                        setItemEnabled( id, false );
                    }
                }
                insertMenuItem(s, nId++, nIndex);
                RecentlyLaunchedApps::the().m_nNumMenuItems++;
            }

            if (it == RecentApps.begin())
            {
                break;
            }
        }

        if (!KickerSettings::showMenuTitles())
        {
            insertSeparator(RecentlyLaunchedApps::the().m_nNumMenuItems);
        }
    }
    else if(KickerSettings::useTopSide())
    {
        int id = insertItem(new PopupMenuTop(),serviceMenuEndId(),0);
        setItemEnabled( id, false );
    }
}

void PanelKMenu::clearSubmenus()
{
    // we don't need to delete these on the way out since the libloader
    // handles them for us
    if (TQApplication::closingDown())
    {
        return;
    }

    for (PopupMenuList::const_iterator it = dynamicSubMenus.constBegin();
            it != dynamicSubMenus.constEnd();
            ++it)
    {
        delete *it;
    }
    dynamicSubMenus.clear();

    PanelServiceMenu::clearSubmenus();
}

void PanelKMenu::updateRecent()
{
    if (!RecentlyLaunchedApps::the().m_bNeedToUpdate)
    {
        return;
    }

    RecentlyLaunchedApps::the().m_bNeedToUpdate = false;

    bool bTitleTop = KickerSettings::useTopSide();

    int nId = serviceMenuEndId() + 1;

    // remove previous items
    if (RecentlyLaunchedApps::the().m_nNumMenuItems > 0)
    {
        // -1 --> menu title
        int i = KickerSettings::showMenuTitles() ? -1 : 0;
        if(bTitleTop) {
            i = KickerSettings::showMenuTitles() ? -2 : 0;
        }

        for (; i < RecentlyLaunchedApps::the().m_nNumMenuItems; i++)
        {
            removeItem(nId + i);
            entryMap_.remove(nId + i);
        }
        RecentlyLaunchedApps::the().m_nNumMenuItems = 0;

        if (!KickerSettings::showMenuTitles())
        {
            removeItemAt(0);
        }
    }

    if(bTitleTop) {
        removeItemAt(0);
    }

    // insert new items
    TQStringList RecentApps;
    RecentlyLaunchedApps::the().getRecentApps(RecentApps);

    if (RecentApps.count() > 0)
    {
        bool bNeedSeparator = KickerSettings::showMenuTitles();
        for (TQValueList<TQString>::ConstIterator it = RecentApps.fromLast();
             /*nop*/; --it)
        {
            KService::Ptr s = KService::serviceByDesktopPath(*it);
            if (!s)
            {
                RecentlyLaunchedApps::the().removeItem(*it);
            }
            else
            {
                if (bNeedSeparator)
                {
                    bNeedSeparator = false;
                    int id = insertItem(new PopupMenuTitle(
                        RecentlyLaunchedApps::the().caption(),
                            font()), nId - 1, 0);
                    setItemEnabled( id, false );
                    if(bTitleTop) {
                        id = insertItem(new PopupMenuTop(),nId - 1,0);
                        setItemEnabled( id, false );
                    }
                }
                insertMenuItem(s, nId++, KickerSettings::showMenuTitles() ?
                    1 : 0);
                RecentlyLaunchedApps::the().m_nNumMenuItems++;
            }

            if (it == RecentApps.begin())
                break;
        }

        if (!KickerSettings::showMenuTitles())
        {
            insertSeparator(RecentlyLaunchedApps::the().m_nNumMenuItems);
        }
    }
    else if(bTitleTop)
    {
        int id = insertItem(new PopupMenuTop(),serviceMenuEndId(),0);
        setItemEnabled( id, false );
    }
}

void PanelKMenu::clearRecentMenuItems()
{
    RecentlyLaunchedApps::the().clearRecentApps();
    RecentlyLaunchedApps::the().save();
    RecentlyLaunchedApps::the().m_bNeedToUpdate = true;
    updateRecent();
}