menus.cpp

/*****************************************************************************
 * menus.cpp : Qt menus
 *****************************************************************************
 * Copyright © 2006-2009 the VideoLAN team
 * $Id$
 *
 * Authors: Clément Stenac <zorglub@videolan.org>
 *          Jean-Baptiste Kempf <jb@videolan.org>
 *          Jean-Philippe André <jpeg@videolan.org>
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/** \todo
 * - Remove static currentGroup
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_intf_strings.h>
#include <vlc_services_discovery.h>
#include <vlc_aout.h>
#include <vlc_vout.h>

#include "menus.hpp"

#include "main_interface.hpp"    /* View modifications */
#include "dialogs_provider.hpp"  /* Dialogs display */
#include "input_manager.hpp"     /* Input Management */
#include "recents.hpp"           /* Recent Items */
#include "actions_manager.hpp"
#include "extensions_manager.hpp"

#include <QMenu>
#include <QMenuBar>
#include <QAction>
#include <QActionGroup>
#include <QSignalMapper>
#include <QSystemTrayIcon>
#include <QList>

/*
  This file defines the main menus and the pop-up menu (right-click menu)
  and the systray menu (in that order in the file)

  There are 3 menus that have to be rebuilt everytime there are called:
  Audio, Video, Navigation
  3 functions are building those menus: AudioMenu, VideoMenu, NavigMenu
  and 3 functions associated are collecting the objects :
  InputAutoMenuBuilder, AudioAutoMenuBuilder, VideoAutoMenuBuilder.

  A QSignalMapper decides when to rebuild those menus cf MenuFunc in the .hpp
  Just before one of those menus are aboutToShow(), they are rebuild.
  */

#define STATIC_ENTRY "__static__"
#define ENTRY_ALWAYS_ENABLED "__ignore__"

enum
{
    ITEM_NORMAL,
    ITEM_CHECK,
    ITEM_RADIO
};

static QActionGroup *currentGroup;

QMenu *QVLCMenu::recentsMenu = NULL;

/****************************************************************************
 * Menu code helpers:
 ****************************************************************************
 * Add static entries to DP in menus
 ***************************************************************************/
void addDPStaticEntry( QMenu *menu,
                       const QString& text,
                       const char *icon,
                       const char *member,
                       const char *shortcut = NULL )
{
    QAction *action = NULL;
    if( !EMPTY_STR( icon ) )
    {
        if( !EMPTY_STR( shortcut ) )
            action = menu->addAction( QIcon( icon ), text, THEDP,
                                      member, qtr( shortcut ) );
        else
            action = menu->addAction( QIcon( icon ), text, THEDP, member );
    }
    else
    {
        if( !EMPTY_STR( shortcut ) )
            action = menu->addAction( text, THEDP, member, qtr( shortcut ) );
        else
            action = menu->addAction( text, THEDP, member );
    }
    action->setData( STATIC_ENTRY );
}

/***
 * Same for MIM
 ***/
QAction* addMIMStaticEntry( intf_thread_t *p_intf,
                            QMenu *menu,
                            const QString& text,
                            const char *icon,
                            const char *member,
                            bool bStatic = false )
{
    QAction *action;
    if( strlen( icon ) > 0 )
    {
        action = menu->addAction( text, THEMIM,  member );
        action->setIcon( QIcon( icon ) );
    }
    else
    {
        action = menu->addAction( text, THEMIM, member );
    }
    action->setData( bStatic ? STATIC_ENTRY : ENTRY_ALWAYS_ENABLED );
    return action;
}

/**
 * @brief Enable all static entries, disable the others
 * @param enable if false, disable all entries
 */
void EnableStaticEntries( QMenu *menu, bool enable = true )
{
    if( !menu ) return;

    QList< QAction* > actions = menu->actions();
    for( int i = 0; i < actions.size(); ++i )
    {
        actions[i]->setEnabled( actions[i]->data().toString()
                                == ENTRY_ALWAYS_ENABLED ||
            /* Be careful here, because data("string").toBool is true */
            ( enable && (actions[i]->data().toString() == STATIC_ENTRY ) ) );
    }
}

/**
 * \return Number of static entries
 */
int DeleteNonStaticEntries( QMenu *menu )
{
    if( !menu ) return VLC_EGENERIC;

    int i_ret = 0;

    QList< QAction* > actions = menu->actions();
    for( int i = 0; i < actions.size(); ++i )
    {
        if( actions[i]->data().toString() != STATIC_ENTRY )
            delete actions[i];
        else
            i_ret++;
    }
    return i_ret;
}

/**
 * \return QAction associated to psz_var variable
 **/
static QAction * FindActionWithVar( QMenu *menu, const char *psz_var )
{
    QList< QAction* > actions = menu->actions();
    for( int i = 0; i < actions.size(); ++i )
    {
        if( actions[i]->data().toString() == psz_var )
            return actions[i];
    }
    return NULL;
}

/*****************************************************************************
 * Definitions of variables for the dynamic menus
 *****************************************************************************/
#define PUSH_VAR( var ) varnames.push_back( var ); \
    objects.push_back( VLC_OBJECT(p_object) )

#define PUSH_INPUTVAR( var ) varnames.push_back( var ); \
    objects.push_back( VLC_OBJECT(p_input) );

#define PUSH_SEPARATOR if( objects.size() != i_last_separator ) { \
    objects.push_back( 0 ); varnames.push_back( "" ); \
    i_last_separator = objects.size(); }

static int InputAutoMenuBuilder( input_thread_t *p_object,
        vector<vlc_object_t *> &objects,
        vector<const char *> &varnames )
{
    PUSH_VAR( "bookmark" );
    PUSH_VAR( "title" );
    PUSH_VAR( "chapter" );
    PUSH_VAR( "navigation" );
    PUSH_VAR( "program" );
    return VLC_SUCCESS;
}

static int VideoAutoMenuBuilder( vout_thread_t *p_object,
        input_thread_t *p_input,
        vector<vlc_object_t *> &objects,
        vector<const char *> &varnames )
{
    PUSH_INPUTVAR( "video-es" );
    PUSH_INPUTVAR( "spu-es" );
#warning This is wrong:
    PUSH_VAR( "fullscreen" );
    PUSH_VAR( "video-on-top" );
    PUSH_VAR( "video-wallpaper" );
#ifdef WIN32
    PUSH_VAR( "direct3d-desktop" );
#endif
    PUSH_VAR( "video-snapshot" );
    PUSH_VAR( "zoom" );
    PUSH_VAR( "autoscale" );
    PUSH_VAR( "aspect-ratio" );
    PUSH_VAR( "crop" );
    PUSH_VAR( "deinterlace" );
    PUSH_VAR( "deinterlace-mode" );
    PUSH_VAR( "postprocess" );

    return VLC_SUCCESS;
}

static int AudioAutoMenuBuilder( aout_instance_t *p_object,
        input_thread_t *p_input,
        vector<vlc_object_t *> &objects,
        vector<const char *> &varnames )
{
    PUSH_INPUTVAR( "audio-es" );
    PUSH_VAR( "audio-channels" );
    PUSH_VAR( "audio-device" );
    PUSH_VAR( "visual" );
    return VLC_SUCCESS;
}

/*****************************************************************************
 * All normal menus
 * Simple Code
 *****************************************************************************/

#define BAR_ADD( func, title ) { \
    QMenu *_menu = func; _menu->setTitle( title ); bar->addMenu( _menu ); }

#define BAR_DADD( func, title, id ) { \
    QMenu *_menu = func; _menu->setTitle( title ); bar->addMenu( _menu ); \
    MenuFunc *f = new MenuFunc( _menu, id ); \
    CONNECT( _menu, aboutToShow(), THEDP->menusUpdateMapper, map() ); \
    THEDP->menusUpdateMapper->setMapping( _menu, f ); }

#define ACT_ADD( _menu, val, title ) { \
    QAction *_action = new QAction( title, _menu ); _action->setData( val ); \
    _menu->addAction( _action ); }

#define ACT_ADDMENU( _menu, val, title ) { \
    QAction *_action = new QAction( title, _menu ); _action->setData( val ); \
    _action->setMenu( new QMenu( _menu ) ); _menu->addAction( _action ); }

#define ACT_ADDCHECK( _menu, val, title ) { \
    QAction *_action = new QAction( title, _menu ); _action->setData( val ); \
    _action->setCheckable( true ); _menu->addAction( _action ); }

/**
 * Main Menu Bar Creation
 **/
void QVLCMenu::createMenuBar( MainInterface *mi,
                              intf_thread_t *p_intf )
{
    /* QMainWindows->menuBar()
       gives the QProcess::destroyed timeout issue on Cleanlooks style with
       setDesktopAware set to false */
    QMenuBar *bar = mi->menuBar();

    BAR_ADD( FileMenu( p_intf, bar ), qtr( "&Media" ) );

    /* Dynamic menus, rebuilt before being showed */
    BAR_DADD( NavigMenu( p_intf, bar ), qtr( "P&layback" ), 3 );
    BAR_DADD( AudioMenu( p_intf, bar ), qtr( "&Audio" ), 1 );
    BAR_DADD( VideoMenu( p_intf, bar ), qtr( "&Video" ), 2 );

    BAR_ADD( ToolsMenu( bar ), qtr( "&Tools" ) );
    BAR_ADD( ViewMenu( p_intf, bar ), qtr( "V&iew" ) );
    BAR_ADD( HelpMenu( bar ), qtr( "&Help" ) );
}
#undef BAR_ADD
#undef BAR_DADD

/**
 * Media ( File ) Menu
 * Opening, streaming and quit
 **/
QMenu *QVLCMenu::FileMenu( intf_thread_t *p_intf, QWidget *parent )
{
    QMenu *menu = new QMenu( parent );

    addDPStaticEntry( menu, qtr( "&Open File..." ),
        ":/type/file-asym", SLOT( simpleOpenDialog() ), "Ctrl+O" );
    addDPStaticEntry( menu, qtr( "Advanced Open File..." ),
        ":/type/file-asym", SLOT( openFileDialog() ), "Ctrl+Shift+O" );
    addDPStaticEntry( menu, qtr( I_OPEN_FOLDER ),
        ":/type/folder-grey", SLOT( PLOpenDir() ), "Ctrl+F" );
    addDPStaticEntry( menu, qtr( "Open &Disc..." ),
        ":/type/disc", SLOT( openDiscDialog() ), "Ctrl+D" );
    addDPStaticEntry( menu, qtr( "Open &Network Stream..." ),
        ":/type/network", SLOT( openNetDialog() ), "Ctrl+N" );
    addDPStaticEntry( menu, qtr( "Open &Capture Device..." ),
        ":/type/capture-card", SLOT( openCaptureDialog() ),
        "Ctrl+C" );

    menu->addSeparator();
    addDPStaticEntry( menu, qtr( "Open &Location from clipboard" ),
                      NULL, SLOT( openUrlDialog() ), "Ctrl+V" );

    if( var_InheritBool( p_intf, "qt-recentplay" ) )
    {
        recentsMenu = new QMenu( qtr( "&Recent Media" ), menu );
        updateRecents( p_intf );
        menu->addMenu( recentsMenu );
    }
    menu->addSeparator();

    addDPStaticEntry( menu, qtr( I_PL_SAVE ), "", SLOT( saveAPlaylist() ),
        "Ctrl+Y" );
    menu->addSeparator();

#ifdef ENABLE_SOUT
    addDPStaticEntry( menu, qtr( "Conve&rt / Save..." ), "",
        SLOT( openAndTranscodingDialogs() ), "Ctrl+R" );
    addDPStaticEntry( menu, qtr( "&Streaming..." ),
        ":/menu/stream", SLOT( openAndStreamingDialogs() ),
        "Ctrl+S" );
    menu->addSeparator();
#endif

    addDPStaticEntry( menu, qtr( "&Quit" ) ,
        ":/menu/quit", SLOT( quit() ), "Ctrl+Q" );
    return menu;
}

/**
 * Tools, like Media Information, Preferences or Messages
 **/
QMenu *QVLCMenu::ToolsMenu( QMenu *menu )
{
    addDPStaticEntry( menu, qtr( "&Effects and Filters"), ":/menu/settings",
            SLOT( extendedDialog() ), "Ctrl+E" );

    addDPStaticEntry( menu, qtr( "&Track Synchronization"), ":/menu/settings",
            SLOT( synchroDialog() ), "" );

    addDPStaticEntry( menu, qtr( I_MENU_INFO ) , ":/menu/info",
        SLOT( mediaInfoDialog() ), "Ctrl+I" );
    addDPStaticEntry( menu, qtr( I_MENU_CODECINFO ) ,
        ":/menu/info", SLOT( mediaCodecDialog() ), "Ctrl+J" );

    addDPStaticEntry( menu, qtr( I_MENU_BOOKMARK ),"",
                      SLOT( bookmarksDialog() ), "Ctrl+B" );
#ifdef ENABLE_VLM
    addDPStaticEntry( menu, qtr( I_MENU_VLM ), "", SLOT( vlmDialog() ),
        "Ctrl+W" );
#endif

    addDPStaticEntry( menu, qtr( "Program Guide" ), "", SLOT( epgDialog() ),
        "" );

    addDPStaticEntry( menu, qtr( I_MENU_MSG ),
        ":/menu/messages", SLOT( messagesDialog() ),
        "Ctrl+M" );

    addDPStaticEntry( menu, qtr( "Plu&gins and extensions" ),
        "", SLOT( pluginDialog() ) );
    menu->addSeparator();

    addDPStaticEntry( menu, qtr( "&Preferences" ),
        ":/menu/preferences", SLOT( prefsDialog() ), "Ctrl+P" );

    return menu;
}

QMenu *QVLCMenu::ToolsMenu( QWidget *parent )
{
    return ToolsMenu( new QMenu( parent ) );
}

/**
 * Dynamic View Menu
 * Connect signal "aboutToShow" to the creation of the View Menu
 **/
QMenu *QVLCMenu::ViewMenu( intf_thread_t *p_intf, QWidget* parent )
{
    QMenu *viewMenu = new QMenu( parent );
    MenuFunc *f = new MenuFunc( viewMenu, 4 );
    CONNECT( viewMenu, aboutToShow(), THEDP->menusUpdateMapper, map() );
    THEDP->menusUpdateMapper->setMapping( viewMenu, f );
    return viewMenu;
}

/**
 * View Menu
 * Interface modification, load other interfaces, activate Extensions
 **/
QMenu *QVLCMenu::ViewMenu( intf_thread_t *p_intf,
                           QMenu *current,
                           bool with_intf )
{
    QAction *action;

    QMenu *menu;
    if( !with_intf )
        menu = new QMenu( qtr( "&View" ), current );
    else
    {
        menu = current;
        menu->clear();
    }

    MainInterface *mi = p_intf->p_sys->p_mi;
    assert( mi );

    menu->addAction( QIcon( ":/menu/playlist_menu" ),
            qtr( "Play&list" ), mi,
            SLOT( togglePlaylist() ), qtr( "Ctrl+L" ) );

    /*menu->addSeparator();
    menu->addAction( qtr( "Undock from Interface" ), mi,
                     SLOT( undockPlaylist() ), qtr( "Ctrl+U" ) );*/

    menu->addSeparator();

    if( with_intf )
    {
        QMenu *intfmenu = InterfacesMenu( p_intf, menu );
        menu->addSeparator();
    }

    /* Minimal View */
    action = menu->addAction( qtr( "Mi&nimal View" ) );
    action->setShortcut( qtr( "Ctrl+H" ) );
    action->setCheckable( true );
    action->setChecked( !with_intf &&
            (mi->getControlsVisibilityStatus() & CONTROLS_HIDDEN ) );

    CONNECT( action, triggered( bool ), mi, toggleMinimalView( bool ) );
    CONNECT( mi, minimalViewToggled( bool ), action, setChecked( bool ) );

    /* FullScreen View */
    action = menu->addAction( qtr( "&Fullscreen Interface" ), mi,
            SLOT( toggleFullScreen() ), QString( "F11" ) );
    action->setCheckable( true );
    action->setChecked( mi->isFullScreen() );
    CONNECT( mi, fullscreenInterfaceToggled( bool ),
             action, setChecked( bool ) );

    /* Advanced Controls */
    action = menu->addAction( qtr( "&Advanced Controls" ), mi,
            SLOT( toggleAdvanced() ) );
    action->setCheckable( true );
    if( mi->getControlsVisibilityStatus() & CONTROLS_ADVANCED )
        action->setChecked( true );

    if( with_intf )
    // I don't want to manage consistency between menus, so no popup-menu
    {
        action = menu->addAction( qtr( "Quit after Playback" ) );
        action->setCheckable( true );
        CONNECT( action, triggered( bool ), THEMIM, activatePlayQuit( bool ) );
    }

#if 0 /* For Visualisations. Not yet working */
    adv = menu->addAction( qtr( "Visualizations selector" ),
            mi, SLOT( visual() ) );
    adv->setCheckable( true );
    if( visual_selector_enabled ) adv->setChecked( true );
#endif

    menu->addSeparator();
    addDPStaticEntry( menu, qtr( "Customi&ze Interface..." ),
        ":/menu/preferences", SLOT( toolbarDialog() ) );

    /* Extensions */
    ExtensionsMenu( p_intf, menu );

    return menu;
}

/**
 * Interface Sub-Menu, to list extras interface and skins
 **/
QMenu *QVLCMenu::InterfacesMenu( intf_thread_t *p_intf, QMenu *current )
{
    vector<vlc_object_t *> objects;
    vector<const char *> varnames;
    varnames.push_back( "intf-add" );
    objects.push_back( VLC_OBJECT(p_intf) );

    return Populate( p_intf, current, varnames, objects );
}

/**
 * Extensions menu: populate the current menu with extensions
 **/
void QVLCMenu::ExtensionsMenu( intf_thread_t *p_intf, QMenu *extMenu )
{
    /* Get ExtensionsManager and load extensions if needed */
    ExtensionsManager *extMgr = ExtensionsManager::getInstance( p_intf );

    if( !var_InheritBool( p_intf, "qt-autoload-extensions")
        && !extMgr->isLoaded() )
    {
        return;
    }

    if( !extMgr->isLoaded() && !extMgr->cannotLoad() )
    {
        extMgr->loadExtensions();
    }

    /* Let the ExtensionsManager build itself the menu */
    extMenu->addSeparator();
    extMgr->menu( extMenu );
}

/**
 * Main Audio Menu
 **/
QMenu *QVLCMenu::AudioMenu( intf_thread_t *p_intf, QMenu * current )
{
    vector<vlc_object_t *> objects;
    vector<const char *> varnames;
    aout_instance_t *p_aout;
    input_thread_t *p_input;

    if( current->isEmpty() )
    {
        ACT_ADDMENU( current, "audio-es", qtr( "Audio &Track" ) );
        ACT_ADDMENU( current, "audio-channels", qtr( "Audio &Channels" ) );
        ACT_ADDMENU( current, "audio-device", qtr( "Audio &Device" ) );
        current->addSeparator();

        ACT_ADDMENU( current, "visual", qtr( "&Visualizations" ) );
        current->addSeparator();

        QAction *action = current->addAction( qtr( "Increase Volume" ),
                ActionsManager::getInstance( p_intf ), SLOT( AudioUp() ) );
        action->setData( STATIC_ENTRY );
        action = current->addAction( qtr( "Decrease Volume" ),
                ActionsManager::getInstance( p_intf ), SLOT( AudioDown() ) );
        action->setData( STATIC_ENTRY );
        action = current->addAction( qtr( "Mute" ),
                ActionsManager::getInstance( p_intf ), SLOT( toggleMuteAudio() ) );
        action->setData( STATIC_ENTRY );
    }

    p_input = THEMIM->getInput();
    p_aout = THEMIM->getAout();
    EnableStaticEntries( current, ( p_aout != NULL ) );
    AudioAutoMenuBuilder( p_aout, p_input, objects, varnames );
    if( p_aout )
    {
        vlc_object_release( p_aout );
    }

    return Populate( p_intf, current, varnames, objects );
}

QMenu *QVLCMenu::AudioMenu( intf_thread_t *p_intf, QWidget *parent )
{
    return AudioMenu( p_intf, new QMenu( parent ) );
}

/**
 * Main Video Menu
 * Subtitles are part of Video.
 **/
QMenu *QVLCMenu::VideoMenu( intf_thread_t *p_intf, QMenu *current )
{
    vout_thread_t *p_vout;
    input_thread_t *p_input;
    vector<vlc_object_t *> objects;
    vector<const char *> varnames;

    if( current->isEmpty() )
    {
        ACT_ADDMENU( current, "video-es", qtr( "Video &Track" ) );

        QAction *action;
        QMenu *submenu = new QMenu( qtr( "&Subtitles Track" ), current );
        action = current->addMenu( submenu );
        action->setData( "spu-es" );
        addDPStaticEntry( submenu, qtr( "Open File..." ), "",
                          SLOT( loadSubtitlesFile() ) );
        submenu->addSeparator();
        current->addSeparator();

        ACT_ADDCHECK( current, "fullscreen", qtr( "&Fullscreen" ) );
        ACT_ADDCHECK( current, "video-on-top", qtr( "Always &On Top" ) );
        ACT_ADDCHECK( current, "video-wallpaper", qtr( "DirectX Wallpaper" ) );
#ifdef WIN32
        ACT_ADDCHECK( current, "direct3d-desktop", qtr( "Direct3D Desktop mode" ) );
#endif
        ACT_ADD( current, "video-snapshot", qtr( "Sna&pshot" ) );

        current->addSeparator();

        ACT_ADDMENU( current, "zoom", qtr( "&Zoom" ) );
        ACT_ADDCHECK( current, "autoscale", qtr( "Sca&le" ) );
        ACT_ADDMENU( current, "aspect-ratio", qtr( "&Aspect Ratio" ) );
        ACT_ADDMENU( current, "crop", qtr( "&Crop" ) );
        ACT_ADDMENU( current, "deinterlace", qtr( "&Deinterlace" ) );
        ACT_ADDMENU( current, "deinterlace-mode", qtr( "&Deinterlace mode" ) );
        ACT_ADDMENU( current, "postprocess", qtr( "&Post processing" ) );
    }

    p_input = THEMIM->getInput();

    p_vout = THEMIM->getVout();
    VideoAutoMenuBuilder( p_vout, p_input, objects, varnames );

    if( p_vout )
        vlc_object_release( p_vout );

    return Populate( p_intf, current, varnames, objects );
}

QMenu *QVLCMenu::VideoMenu( intf_thread_t *p_intf, QWidget *parent )
{
    return VideoMenu( p_intf, new QMenu( parent ) );
}

/**
 * Navigation Menu
 * For DVD, MP4, MOV and other chapter based format
 **/
QMenu *QVLCMenu::NavigMenu( intf_thread_t *p_intf, QMenu *menu )
{
    QAction *action;

    QMenu *submenu = new QMenu( qtr( "&Bookmarks" ), menu );
    addDPStaticEntry( submenu, qtr( "Manage &bookmarks" ), "",
                      SLOT( bookmarksDialog() ) );
    submenu->addSeparator();
    action = menu->addMenu( submenu );
    action->setData( "bookmark" );

    ACT_ADDMENU( menu, "title", qtr( "T&itle" ) );
    ACT_ADDMENU( menu, "chapter", qtr( "&Chapter" ) );
    ACT_ADDMENU( menu, "navigation", qtr( "&Navigation" ) );
    ACT_ADDMENU( menu, "program", qtr( "&Program" ) );

    menu->addSeparator();
    PopupMenuPlaylistControlEntries( menu, p_intf );
    PopupMenuControlEntries( menu, p_intf );

    EnableStaticEntries( menu, ( THEMIM->getInput() != NULL ) );
    return RebuildNavigMenu( p_intf, menu );
}

QMenu *QVLCMenu::RebuildNavigMenu( intf_thread_t *p_intf, QMenu *menu )
{
    /* */
    input_thread_t *p_object;
    vector<vlc_object_t *> objects;
    vector<const char *> varnames;

    /* Get the input and hold it */
    p_object = THEMIM->getInput();

    InputAutoMenuBuilder( p_object, objects, varnames );

    menu->addSeparator();

    /* Title and so on */
    PUSH_VAR( "prev-title" );
    PUSH_VAR( "next-title" );
    PUSH_VAR( "prev-chapter" );
    PUSH_VAR( "next-chapter" );

    EnableStaticEntries( menu, (p_object != NULL ) );
    return Populate( p_intf, menu, varnames, objects );
}

QMenu *QVLCMenu::NavigMenu( intf_thread_t *p_intf, QWidget *parent )
{
    return NavigMenu( p_intf, new QMenu( parent ) );
}

/**
 * Service Discovery SubMenu
 **/
QMenu *QVLCMenu::SDMenu( intf_thread_t *p_intf, QWidget *parent )
{
    QMenu *menu = new QMenu( parent );
    menu->setTitle( qtr( I_PL_SD ) );

    char **ppsz_longnames;
    char **ppsz_names = vlc_sd_GetNames( p_intf, &ppsz_longnames, NULL );
    if( !ppsz_names )
        return menu;

    char **ppsz_name = ppsz_names, **ppsz_longname = ppsz_longnames;
    for( ; *ppsz_name; ppsz_name++, ppsz_longname++ )
    {
        if( !strcmp( *ppsz_name, "podcast" ) )
        {
            QAction *b = new QAction( qtr( "Configure podcasts..." ), menu );
            //b->setEnabled( a->isChecked() );
            menu->addAction( b );
            CONNECT( b, triggered(), THEDP, podcastConfigureDialog() );
        }
        free( *ppsz_name );
        free( *ppsz_longname );
    }
    free( ppsz_names );
    free( ppsz_longnames );
    return menu;
}

/**
 * Help/About Menu
**/
QMenu *QVLCMenu::HelpMenu( QWidget *parent )
{
    QMenu *menu = new QMenu( parent );
    addDPStaticEntry( menu, qtr( "&Help..." ) ,
        ":/menu/help", SLOT( helpDialog() ), "F1" );
#ifdef UPDATE_CHECK
    addDPStaticEntry( menu, qtr( "Check for &Updates..." ) , "",
                      SLOT( updateDialog() ) );
#endif
    menu->addSeparator();
    addDPStaticEntry( menu, qtr( I_MENU_ABOUT ), ":/menu/info",
            SLOT( aboutDialog() ), "Shift+F1" );
    return menu;
}

/*****************************************************************************
 * Popup menus - Right Click menus                                           *
 *****************************************************************************/
#define POPUP_BOILERPLATE \
    unsigned int i_last_separator = 0; \