static bool dirbrowse(void)
{
    int numentries=0;
    char buf[MAX_PATH];
    int lasti = -1;
    unsigned button, returned_button;
    bool reload_root = false;
    int lastfilter = *tc.dirfilter;
    bool lastsortcase = global_settings.sort_case;
    bool need_update = true;
    bool exit_func = false;
    long thumbnail_time = -1; /* for delaying a thumbnail */

    char* currdir = tc.currdir; /* just a shortcut */
#ifdef HAVE_TAGCACHE
    bool id3db = *tc.dirfilter == SHOW_ID3DB;

    if (id3db)
        curr_context=CONTEXT_ID3DB;
    else
#endif
        curr_context=CONTEXT_TREE;
    tc.selected_item = 0;
    tc.dirlevel=0;
    tc.firstpos=0;
    lasttable = -1;
    lastextra = -1;
    lastfirstpos = 0;

    if (*tc.dirfilter < NUM_FILTER_MODES) {
#ifdef HAVE_RECORDING
#ifndef SIMULATOR
        if (global_settings.rec_startup) {
            /* We fake being in the menu structure by calling
               the appropriate parent when we drop out of each screen */
#if CONFIG_CODEC == SWCODEC
            /* Put in a 1 sec pause to slow bootup or the recording codecs
               won't initialize */
            sleep(HZ);
#endif
            recording_screen(false);
            rec_menu();
            main_menu();
        }
        else
#endif
#endif
        start_resume(true);

    }
    /* If we don't need to show the wps, draw the dir */
    if (!start_wps) {
        numentries = update_dir();
        if (numentries == -1)
            return false;  /* currdir is not a directory */

        if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
        {
            gui_syncsplash(HZ*2, true, str(LANG_NO_FILES));
            return false;  /* No files found for rockbox_browser() */
        }
    }

    while(1) {
        struct entry *dircache = tc.dircache;
        bool restore = false;
#ifdef BOOTFILE
        if (boot_changed) {
            char *lines[]={str(LANG_BOOT_CHANGED), str(LANG_REBOOT_NOW)};
            struct text_message message={lines, 2};
            if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
                rolo_load("/" BOOTFILE);
            restore = true;
            boot_changed = false;
        }
#endif
        button = get_action(CONTEXT_TREE,HZ/5);
        returned_button = gui_synclist_do_button(&tree_lists, button);
        if (returned_button)
            need_update = true;
        if (returned_button == ACTION_STD_CANCEL)
            button = ACTION_STD_CANCEL;

        switch ( button ) {
            case ACTION_STD_OK:
                /* nothing to do if no files to display */
                if ( numentries == 0 )
                    break;

#ifdef HAVE_TAGCACHE
                switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
                {
                    case 1: reload_dir = true; break;
                    case 2: start_wps = true; break;
                    case 3: exit_func = true; break;
                    default: break;
                }
                restore = true;
                break;
#endif

            case ACTION_STD_CANCEL:
                if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
                    exit_func = true;
                    break;
                }
                /* if we are in /, nothing to do */
                if (tc.dirlevel == 0 && !strcmp(currdir,"/"))
                    break;

#ifdef HAVE_TAGCACHE
                if (id3db)
                    tagtree_exit(&tc);
                else
                    if (ft_exit(&tc) == 3)
                        exit_func = true;
                
                restore = true;
                break;
#endif

            case ACTION_TREE_STOP:
                if (*tc.dirfilter < NUM_FILTER_MODES)
                {
                    /* Stop the music if it is playing */
                    if(audio_status()) {
                        if (!global_settings.party_mode) {
                            if (global_settings.fade_on_stop)
                                fade(0);
                            bookmark_autobookmark();
                            audio_stop();
                        }
                    }
#if defined(CONFIG_CHARGING) && \
    (CONFIG_KEYPAD == RECORDER_PAD) && !defined(HAVE_SW_POWEROFF)
                    else {
                        if (!charger_inserted()) {
                            if(shutdown_screen())
                                reload_dir = true;
                        } else {
                            charging_splash();
                        }
                        restore = true;
                    }
#endif
                }
#if defined(CONFIG_CHARGING) && !defined(HAVE_POWEROFF_WHILE_CHARGING)
{
                static int last_off = 0;
                if (current_tick - last_off < 50) {
                    if (charger_inserted()) {
                        charging_splash();
                        restore = true;
                    }
                }
                last_off = current_tick;
}
#endif
                break; /* case ACTION_TREE_STOP: */
            case ACTION_STD_MENU:
                /* don't enter menu from plugin browser */
                if (*tc.dirfilter < NUM_FILTER_MODES)
                {
                    int i;
                    FOR_NB_SCREENS(i)
                        screens[i].stop_scroll();
                    action_signalscreenchange();
                    if (main_menu())
                        reload_dir = true;
                    restore = true;

#ifdef HAVE_TAGCACHE
                    id3db = check_changed_id3mode(id3db);
                    if(id3db)
                        reload_dir = true;
                }
                else /* use it as a quick exit instead */
                    exit_func = true;
                break;
#endif

            case ACTION_TREE_WPS:
                /* don't enter wps from plugin browser etc */
                if (*tc.dirfilter < NUM_FILTER_MODES)
                {
                    if (audio_status() & AUDIO_STATUS_PLAY)
                    {
                        start_wps=true;
                    }
                    else
                    {
                        start_resume(false);
                        restore = true;
                    }
                }
                break;
#ifdef HAVE_QUICKSCREEN
            case ACTION_STD_QUICKSCREEN:
                /* don't enter f2 from plugin browser */
                if (*tc.dirfilter < NUM_FILTER_MODES)
                {
                    if (quick_screen_quick(button))
                        reload_dir = true;
                    restore = true;

#ifdef HAVE_TAGCACHE
                    id3db = check_changed_id3mode(id3db);
                    reload_dir = true;
                }
                break;
#endif
#endif
#ifdef BUTTON_F3
            case ACTION_F3:
                /* don't enter f3 from plugin browser */
                if (*tc.dirfilter < NUM_FILTER_MODES)
                {
                    if (quick_screen_f3(BUTTON_F3))
                        reload_dir = true;
                    restore = true;
                }
                break;
#endif

            case ACTION_STD_CONTEXT:
            {
                int onplay_result;
                int attr = 0;

                if(!numentries)
                    onplay_result = onplay(NULL, 0, curr_context);
                else {
#ifdef HAVE_TAGCACHE
                    if (id3db)
                    {
                        if (tagtree_get_attr(&tc) == TREE_ATTR_MPA)
                        {
                            attr = TREE_ATTR_MPA;
                            tagtree_get_filename(&tc, buf, sizeof(buf));
                        }
                        else
                            attr = ATTR_DIRECTORY;
                    }
                    else
#endif
                    {
                        attr = dircache[tc.selected_item].attr;

                        if (currdir[1]) /* Not in / */
                            snprintf(buf, sizeof buf, "%s/%s",
                                     currdir,
                                     dircache[tc.selected_item].name);
                        else /* In / */
                            snprintf(buf, sizeof buf, "/%s",
                                     dircache[tc.selected_item].name);
                    }
                    onplay_result = onplay(buf, attr, curr_context);
                }
                switch (onplay_result)
                {
                    case ONPLAY_OK:
                        restore = true;
                        break;

                    case ONPLAY_RELOAD_DIR:
                        reload_dir = true;
                        break;

                    case ONPLAY_START_PLAY:
                        start_wps = true;
                        break;
                }
                break;
            }

            case ACTION_NONE:
                if (thumbnail_time != -1 &&
                    TIME_AFTER(current_tick, thumbnail_time))
                {   /* a delayed hovering thumbnail is due now */
                    int res;
                    int attr;
                    char* name;

#ifdef HAVE_TAGCACHE
                    if (id3db)
                    {
                        attr = tagtree_get_attr(&tc);
                        name = tagtree_get_entry(&tc, lasti)->name;
                    }
                    else
#endif
                    {
                        attr = dircache[lasti].attr;
                        name = dircache[lasti].name;
                    }

                    if (attr & ATTR_DIRECTORY)
                    {
                        DEBUGF("Playing directory thumbnail: %s", currdir);
                        res = ft_play_dirname(name);
                        if (res < 0) /* failed, not existing */
                        {   /* say the number instead, as a fallback */
                            talk_id(VOICE_DIR, false);
                            talk_number(lasti+1, true);
                        }
                    }
                    else
                    {
                        DEBUGF("Playing file thumbnail: %s/%s%s\n",
                               currdir, name,
                               file_thumbnail_ext);
                        /* no fallback necessary, we knew in advance
                           that the file exists */
                        ft_play_filename(currdir, name);
                    }
                    thumbnail_time = -1; /* job done */
                }
                gui_syncstatusbar_draw(&statusbars, false);
                break;

#ifdef HAVE_HOTSWAP
            case SYS_FS_CHANGED:
                if (!id3db)
                    reload_dir = true;
                /* The 'dir no longer valid' situation will be caught later
                 * by checking the showdir() result. */
                break;
#endif

            default:
                if (default_event_handler(button) == SYS_USB_CONNECTED)
                {
                    if(*tc.dirfilter > NUM_FILTER_MODES)
                        /* leave sub-browsers after usb, doing otherwise
                           might be confusing to the user */
                        exit_func = true;
                    else
                        reload_dir = true;
                }
                break;
        }

        if ( button )
        {
            ata_spin();
        }

        if (start_wps && audio_status() )
        {
            int i;

            FOR_NB_SCREENS(i)
                screens[i].stop_scroll();

            if (gui_wps_show() == SYS_USB_CONNECTED)
                reload_dir = true;
#ifdef HAVE_HOTSWAP
            else
                if (!id3db) /* Try reload to catch 'no longer valid' case. */
                    reload_dir = true;
#endif
#ifdef HAVE_LCD_COLOR
            show_main_backdrop();
#endif
#ifdef HAVE_TAGCACHE
            id3db = check_changed_id3mode(id3db);
#endif
            restore = true;
            start_wps=false;
        }

    check_rescan:
        /* do we need to rescan dir? */
        if (reload_dir || reload_root ||
            lastfilter != *tc.dirfilter ||
            lastsortcase != global_settings.sort_case)
        {
            if ( reload_root ) {
                strcpy(currdir, "/");
                tc.dirlevel = 0;
                tc.currtable = 0;
                tc.currextra = 0;
                lasttable = -1;
                lastextra = -1;
                reload_root = false;
            }

            if (! reload_dir )
            {
                gui_synclist_select_item(&tree_lists, 0);
                gui_synclist_draw(&tree_lists);
                tc.selected_item = 0;
                lastdir[0] = 0;
            }

            lastfilter = *tc.dirfilter;
            lastsortcase = global_settings.sort_case;
            restore = true;
        }

        if (exit_func)
            break;

        if (restore || reload_dir) {
            /* restore display */
            numentries = update_dir();
            if (currdir[1] && (numentries < 0))
            {   /* not in root and reload failed */
                reload_root = true; /* try root */
                reload_dir = false;
                goto check_rescan;
            }
            need_update = true;
            reload_dir = false;
        }

        if(need_update) {
            tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
            need_update=false;
            if ( numentries > 0 ) {
                /* Voice the file if changed */
                if(lasti != tc.selected_item || restore) {
                    int attr;
                    char* name;

                    lasti = tc.selected_item;
                    thumbnail_time = -1; /* Cancel whatever we were
                                            about to say */

#ifdef HAVE_TAGCACHE
                    if (id3db)
                    {
                        attr = tagtree_get_attr(&tc);
                        name = tagtree_get_entry(&tc, tc.selected_item)->name;
                    }
                    else
#endif
                    {
                        attr = dircache[tc.selected_item].attr;
                        name = dircache[tc.selected_item].name;
                    }

                    /* Directory? */
                    if (attr & ATTR_DIRECTORY)
                    {
                        /* play directory thumbnail */
                        switch (global_settings.talk_dir) {
                            case 1: /* dirs as numbers */
                                talk_id(VOICE_DIR, false);
                                talk_number(tc.selected_item+1, true);
                                break;

                            case 2: /* dirs spelled */
                                talk_spell(name, false);
                                break;

                            case 3: /* thumbnail clip */
                                /* "schedule" a thumbnail, to have a little
                                   delay */
                                thumbnail_time = current_tick + HOVER_DELAY;
                                break;

                            default:
                                break;
                        }
                    }
                    else /* file */
                    {
                        switch (global_settings.talk_file) {
                            case 1: /* files as numbers */
                                ft_play_filenumber(
                                    tc.selected_item-tc.dirsindir+1,
                                    attr & TREE_ATTR_MASK);
                                break;

                            case 2: /* files spelled */
                                talk_spell(name, false);
                                break;

                            case 3: /* thumbnail clip */
                                /* "schedule" a thumbnail, to have a little
                                   delay */
                                if (attr & TREE_ATTR_THUMBNAIL)
                                    thumbnail_time = current_tick + HOVER_DELAY;
                                else
                                    /* spell the number as fallback */
                                    talk_spell(name, false);
                                break;

                            default:
                                break;
                        }
                    }
                }
            }
        }
    }
    action_signalscreenchange();
    return true;
}

static int plsize = 0;
static long pltick;
static bool add_dir(char* dirname, int len, int fd)
{
    bool abort = false;
    DIRCACHED* dir;

    /* check for user abort */
    if (action_userabort(TIMEOUT_NOBLOCK))
        return true;

    dir = opendir_cached(dirname);
    if(!dir)
        return true;

    while (true) {
        struct dircache_entry *entry;

        entry = readdir_cached(dir);
        if (!entry)
            break;
        if (entry->attribute & ATTR_DIRECTORY) {
            int dirlen = strlen(dirname);
            bool result;

            if (!strcmp((char *)entry->d_name, ".") ||
                !strcmp((char *)entry->d_name, ".."))
                continue;

            if (dirname[1])
                snprintf(dirname+dirlen, len-dirlen, "/%s", entry->d_name);
            else
                snprintf(dirname, len, "/%s", entry->d_name);

            result = add_dir(dirname, len, fd);
            dirname[dirlen] = '\0';
            if (result) {
                abort = true;
                break;
            }
        }
        else {
            int x = strlen((char *)entry->d_name);
            unsigned int i;
            char *cp = strrchr((char *)entry->d_name,'.');

            if (cp) {
                cp++;

                /* add all supported audio files to playlists */
                for (i=0; i < sizeof(filetypes)/sizeof(struct filetype); i++) {
                    if (filetypes[i].tree_attr == TREE_ATTR_MPA) {
                        if (!strcasecmp(cp, filetypes[i].extension)) {
                            char buf[8];
                            int i;
                            write(fd, dirname, strlen(dirname));
                            write(fd, "/", 1);
                            write(fd, entry->d_name, x);
                            write(fd, "\n", 1);

                            plsize++;
                            if(TIME_AFTER(current_tick, pltick+HZ/4)) {
                                pltick = current_tick;

                                snprintf(buf, sizeof buf, "%d", plsize);
#ifdef HAVE_LCD_BITMAP
                                FOR_NB_SCREENS(i)
                                {
                                    screens[i].puts(0, 4, (unsigned char *)buf);
                                    gui_textarea_update(&screens[i]);
                                }
#else
                                x = 10;
                                if (plsize > 999)
                                    x=7;
                                else {
                                    if (plsize > 99)
                                        x=8;
                                    else {
                                        if (plsize > 9)
                                            x=9;
                                    }
                                }
                                FOR_NB_SCREENS(i) {
                                    screens[i].puts(x,0,buf);
                                }
#endif
                            }
                            break;
                        }
                    }
                }
            }
        }
    }
    closedir_cached(dir);

    return abort;
}