apps/playlist_viewer.c

   1 /***************************************************************************
   2  *
   3  *             __________               __   ___.
   4  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   5  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   6  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   7  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   8  *                     \/            \/     \/    \/            \/
   9  * $Id$
  10  *
  11  * Copyright (C) 2003 Hardeep Sidhu
  12  *
  13  * All files in this archive are subject to the GNU General Public License.
  14  * See the file COPYING in the source tree root for full license agreement.
  15  *
  16  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  17  * KIND, either express or implied.
  18  *
  19  ****************************************************************************/
  20 /*
  21  * Kevin Ferrare 2005/10/16
  22  * multi-screen support, rewrote a lot of code
  23  */
  24 #include <string.h>
  25 #include <sprintf.h>
  26 #include "playlist.h"
  27 #include "audio.h"
  28 #include "screens.h"
  29 #include "status.h"
  30 #include "settings.h"
  31 #include "icons.h"
  32 #include "menu.h"
  33 #include "plugin.h"
  34 #include "keyboard.h"
  35 #include "filetypes.h"
  36 #include "onplay.h"
  37 #include "talk.h"
  38 #include "misc.h"
  39 #include "action.h"
  40 #include "debug.h"
  41 #include "backlight.h"
  42
  43 #include "lang.h"
  44
  45 #include "playlist_viewer.h"
  46 #include "playlist_catalog.h"
  47 #include "icon.h"
  48 #include "list.h"
  49 #include "statusbar.h"
  50 #include "splash.h"
  51 #include "playlist_menu.h"
  52 #include "action.h"
  53
  54 /* Maximum number of tracks we can have loaded at one time */
  55 #define MAX_PLAYLIST_ENTRIES 200
  56
  57 /* The number of items between the selected one and the end/start of
  58  * the buffer under which the buffer must reload */
  59 #define MIN_BUFFER_MARGIN (screens[0].nb_lines+1)
  60
  61 /* Information about a specific track */
  62 struct playlist_entry {
  63     char *name;                 /* Formatted track name                     */
  64     int index;                  /* Playlist index                           */
  65     int display_index;          /* Display index                            */
  66     bool queued;                /* Is track queued?                         */
  67     bool skipped;               /* Is track marked as bad?                  */
  68 };
  69
  70 enum direction
  71 {
  72     FORWARD,
  73     BACKWARD
  74 };
  75
  76 struct playlist_buffer
  77 {
  78     char *name_buffer;        /* Buffer used to store track names */
  79     int buffer_size;          /* Size of name buffer */
  80
  81     int first_index;          /* Real index of first track loaded inside
  82                                  the buffer */
  83
  84     enum direction direction; /* Direction of the buffer (if the buffer
  85                                  was loaded BACKWARD, the last track in
  86                                  the buffer has a real index < to the
  87                                  real index of the the first track)*/
  88
  89     struct playlist_entry tracks[MAX_PLAYLIST_ENTRIES];
  90     int num_loaded;           /* Number of track entries loaded in buffer */
  91 };
  92
  93 /* Global playlist viewer settings */
  94 struct playlist_viewer {
  95     struct playlist_info* playlist; /* playlist being viewed                */
  96     int num_tracks;             /* Number of tracks in playlist             */
  97     int current_playing_track;  /* Index of current playing track           */
  98     int selected_track;         /* The selected track, relative (first is 0)*/
  99     int move_track;             /* Playlist index of track to move or -1    */
 100     struct playlist_buffer buffer;
 101 };
 102
 103 static struct playlist_viewer  viewer;
 104
 105 /* Used when viewing playlists on disk */
 106 static struct playlist_info temp_playlist;
 107
 108 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 109                                  int names_buffer_size);
 110 static void playlist_buffer_load_entries(struct playlist_buffer * pb, int index,
 111                                          enum direction direction);
 112 static int playlist_entry_load(struct playlist_entry *entry, int index,
 113                                char* name_buffer, int remaining_size);
 114
 115 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 116                                                          int index);
 117
 118 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 119                                  char* filename, bool reload);
 120
 121 static void format_name(char* dest, const char* src);
 122 static void format_line(const struct playlist_entry* track, char* str,
 123                         int len);
 124
 125 static bool update_playlist(bool force);
 126 static int  onplay_menu(int index);
 127 static bool viewer_menu(void);
 128 static int save_playlist_func(void);
 129
 130 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 131                                  int names_buffer_size)
 132 {
 133     pb->name_buffer=names_buffer;
 134     pb->buffer_size=names_buffer_size;
 135     pb->first_index=0;
 136     pb->num_loaded=0;
 137 }
 138
 139 /*
 140  * Loads the entries following 'index' in the playlist buffer
 141  */
 142 static void playlist_buffer_load_entries(struct playlist_buffer *pb, int index,
 143                                          enum direction direction)
 144 {
 145     int num_entries = viewer.num_tracks;
 146     char* p = pb->name_buffer;
 147     int remaining = pb->buffer_size;
 148     int i;
 149
 150     pb->first_index = index;
 151     if (num_entries > MAX_PLAYLIST_ENTRIES)
 152         num_entries = MAX_PLAYLIST_ENTRIES;
 153
 154     for(i=0; i<num_entries; i++)
 155     {
 156         int len = playlist_entry_load(&(pb->tracks[i]), index, p, remaining);
 157         if (len < 0)
 158         {
 159             /* Out of name buffer space */
 160             num_entries = i;
 161             break;
 162         }
 163
 164         p += len;
 165         remaining -= len;
 166
 167         if(direction==FORWARD)
 168             index++;
 169         else
 170             index--;
 171         index+=viewer.num_tracks;
 172         index%=viewer.num_tracks;
 173     }
 174     pb->direction=direction;
 175     pb->num_loaded = i;
 176 }
 177
 178 static void playlist_buffer_load_entries_screen(struct playlist_buffer * pb,
 179                                                 enum direction direction)
 180 {
 181     if(direction==FORWARD)
 182     {
 183         int min_start=viewer.selected_track-2*screens[0].nb_lines;
 184         while(min_start<0)
 185             min_start+=viewer.num_tracks;
 186         min_start %= viewer.num_tracks;
 187         playlist_buffer_load_entries(pb, min_start, FORWARD);
 188     }
 189      else
 190     {
 191         int max_start=viewer.selected_track+2*screens[0].nb_lines;
 192         max_start%=viewer.num_tracks;
 193         playlist_buffer_load_entries(pb, max_start, BACKWARD);
 194     }
 195 }
 196
 197 static int playlist_entry_load(struct playlist_entry *entry, int index,
 198                                char* name_buffer, int remaining_size)
 199 {
 200     struct playlist_track_info info;
 201     int len;
 202
 203     /* Playlist viewer orders songs based on display index.  We need to
 204        convert to real playlist index to access track */
 205     index = (index + playlist_get_first_index(viewer.playlist)) %
 206         viewer.num_tracks;
 207     if (playlist_get_track_info(viewer.playlist, index, &info) < 0)
 208         return -1;
 209
 210     len = strlen(info.filename) + 1;
 211
 212     if (len <= remaining_size)
 213     {
 214         strcpy(name_buffer, info.filename);
 215
 216         entry->name = name_buffer;
 217         entry->index = info.index;
 218         entry->display_index = info.display_index;
 219         entry->queued = info.attr & PLAYLIST_ATTR_QUEUED;
 220         entry->skipped = info.attr & PLAYLIST_ATTR_SKIPPED;
 221         return len;
 222     }
 223     return -1;
 224 }
 225
 226 static int playlist_buffer_get_index(struct playlist_buffer *pb, int index )
 227 {
 228     int buffer_index;
 229     if(pb->direction==FORWARD)
 230     {
 231         if(index>=pb->first_index)
 232             buffer_index=index-pb->first_index;
 233         else /* rotation : track0 in buffer + requested track */
 234             buffer_index=(viewer.num_tracks-pb->first_index)+(index);
 235     }
 236     else
 237     {
 238         if(index<=pb->first_index)
 239             buffer_index=pb->first_index-index;
 240         else /* rotation : track0 in buffer + dist from the last track
 241                 to the requested track (num_tracks-requested track) */
 242             buffer_index=(pb->first_index)+(viewer.num_tracks-index);
 243     }
 244     return(buffer_index);
 245 }
 246
 247 #define distance(a, b) \
 248     a>b? (a) - (b) : (b) - (a)
 249 static bool playlist_buffer_needs_reload(struct playlist_buffer* pb, int track_index)
 250 {
 251     if(pb->num_loaded==viewer.num_tracks)
 252         return(false);
 253     int selected_index=playlist_buffer_get_index(pb, track_index);
 254     int first_buffer_index=playlist_buffer_get_index(pb, pb->first_index);
 255     int distance_beginning=distance(selected_index, first_buffer_index);
 256     if(distance_beginning<MIN_BUFFER_MARGIN)
 257         return(true);
 258
 259     if(pb->num_loaded - distance_beginning < MIN_BUFFER_MARGIN)
 260        return(true);
 261     return(false);
 262 }
 263
 264 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 265                                                          int index)
 266 {
 267     int buffer_index=playlist_buffer_get_index(pb, index);
 268     return(&(pb->tracks[buffer_index]));
 269 }
 270
 271 /* Initialize the playlist viewer. */
 272 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 273                                  char* filename, bool reload)
 274 {
 275     char* buffer;
 276     size_t buffer_size;
 277     bool is_playing = audio_status() & (AUDIO_STATUS_PLAY | AUDIO_STATUS_PAUSE);
 278     bool have_list = filename || is_playing;
 279     if (!have_list && (global_status.resume_index != -1))
 280     {
 281         /* Try to restore the list from control file */
 282         have_list = (playlist_resume() != -1);
 283     }
 284     if (!have_list && (playlist_amount() > 0))
 285     {
 286          /*If dynamic playlist still exists, view it anyway even
 287         if playback has reached the end of the playlist */
 288         have_list = true;
 289     }
 290     if (!have_list)
 291     {
 292         /* Nothing to view, exit */
 293         gui_syncsplash(HZ, str(LANG_CATALOG_NO_PLAYLISTS));
 294         return false;
 295     }
 296
 297     buffer = plugin_get_buffer(&buffer_size);
 298     if (!buffer)
 299         return false;
 300
 301     if (!filename)
 302         viewer->playlist = NULL;
 303     else
 304     {
 305         /* Viewing playlist on disk */
 306         char *dir, *file, *temp_ptr;
 307         char *index_buffer = NULL;
 308         ssize_t index_buffer_size = 0;
 309
 310         viewer->playlist = &temp_playlist;
 311
 312         /* Separate directory from filename */
 313         temp_ptr = strrchr(filename+1,'/');
 314         if (temp_ptr)
 315         {
 316             *temp_ptr = 0;
 317             dir = filename;
 318             file = temp_ptr + 1;
 319         }
 320         else
 321         {
 322             dir = "/";
 323             file = filename+1;
 324         }
 325
 326         if (is_playing)
 327         {
 328             /* Something is playing, use half the plugin buffer for playlist
 329                indices */
 330             index_buffer_size = buffer_size / 2;
 331             index_buffer = buffer;
 332         }
 333
 334         playlist_create_ex(viewer->playlist, dir, file, index_buffer,
 335             index_buffer_size, buffer+index_buffer_size,
 336             buffer_size-index_buffer_size);
 337
 338         if (temp_ptr)
 339             *temp_ptr = '/';
 340
 341         buffer += index_buffer_size;
 342         buffer_size -= index_buffer_size;
 343     }
 344     playlist_buffer_init(&viewer->buffer, buffer, buffer_size );
 345
 346     viewer->move_track = -1;
 347
 348     if (!reload)
 349     {
 350         if (viewer->playlist)
 351             viewer->selected_track = 0;
 352         else
 353             viewer->selected_track = playlist_get_display_index() - 1;
 354     }
 355
 356     if (!update_playlist(true))
 357         return false;
 358     return true;
 359 }
 360
 361 /* Format trackname for display purposes */
 362 static void format_name(char* dest, const char* src)
 363 {
 364     switch (global_settings.playlist_viewer_track_display)
 365     {
 366         case 0:
 367         default:
 368         {
 369             /* Only display the filename */
 370             char* p = strrchr(src, '/');
 371
 372             strcpy(dest, p+1);
 373
 374             /* Remove the extension */
 375             char* q = strrchr(dest, '.');
 376
 377             if (q != NULL)
 378                 *q = '\0';
 379
 380             break;
 381         }
 382         case 1:
 383             /* Full path */
 384             strcpy(dest, src);
 385             break;
 386     }
 387 }
 388
 389 /* Format display line */
 390 static void format_line(const struct playlist_entry* track, char* str,
 391                         int len)
 392 {
 393     char name[MAX_PATH];
 394     char *skipped = "";
 395
 396     format_name(name, track->name);
 397
 398     if (track->skipped)
 399         skipped = "(ERR) ";
 400
 401     if (global_settings.playlist_viewer_indices)
 402         /* Display playlist index */
 403         snprintf(str, len, "%d. %s%s", track->display_index, skipped, name);
 404     else
 405         snprintf(str, len, "%s%s", skipped, name);
 406
 407 }
 408
 409 /* Update playlist in case something has changed or forced */
 410 static bool update_playlist(bool force)
 411 {
 412     if (!viewer.playlist)
 413         playlist_get_resume_info(&viewer.current_playing_track);
 414     else
 415         viewer.current_playing_track = -1;
 416     int nb_tracks=playlist_amount_ex(viewer.playlist);
 417     force=force || nb_tracks != viewer.num_tracks;
 418     if (force)
 419     {
 420         /* Reload tracks */
 421         viewer.num_tracks = nb_tracks;
 422         if (viewer.num_tracks <= 0)
 423             return false;
 424         playlist_buffer_load_entries_screen(&viewer.buffer, FORWARD);
 425         if (viewer.buffer.num_loaded <= 0)
 426             return false;
 427     }
 428     return true;
 429 }
 430
 431 /* Menu of playlist commands.  Invoked via ON+PLAY on main viewer screen.
 432    Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
 433    changed. */
 434 static int onplay_menu(int index)
 435 {
 436     int result, ret = 0;
 437     struct playlist_entry * current_track=
 438         playlist_buffer_get_track(&viewer.buffer, index);
 439     MENUITEM_STRINGLIST(menu_items, ID2P(LANG_PLAYLIST), NULL,
 440                         ID2P(LANG_REMOVE), ID2P(LANG_MOVE),
 441                         ID2P(LANG_CATALOG_ADD_TO), ID2P(LANG_CATALOG_ADD_TO_NEW));
 442     bool current = (current_track->index == viewer.current_playing_track);
 443
 444     result = do_menu(&menu_items, NULL);
 445     if (result == MENU_ATTACHED_USB)
 446     {
 447         ret = -1;
 448     }
 449     else if (result >= 0)
 450     {
 451         /* Abort current move */
 452         viewer.move_track = -1;
 453
 454         switch (result)
 455         {
 456             case 0:
 457                 /* delete track */
 458                 playlist_delete(viewer.playlist, current_track->index);
 459                 if (current)
 460                 {
 461                     if (playlist_amount_ex(viewer.playlist) <= 0)
 462                         audio_stop();
 463                     else
 464                     {
 465                        /* Start playing new track except if it's the lasttrack
 466                           track in the playlist and repeat mode is disabled */
 467                         current_track =
 468                             playlist_buffer_get_track(&viewer.buffer, index);
 469                         if (current_track->display_index!=viewer.num_tracks ||
 470                             global_settings.repeat_mode == REPEAT_ALL)
 471                         {
 472 #if CONFIG_CODEC != SWCODEC
 473                             talk_buffer_steal(); /* will use the mp3 buffer */
 474 #endif
 475                             audio_play(0);
 476                             viewer.current_playing_track = -1;
 477                         }
 478                     }
 479                 }
 480                 ret = 1;
 481                 break;
 482             case 1:
 483                 /* move track */
 484                 viewer.move_track = current_track->index;
 485                 ret = 0;
 486                 break;
 487             case 2: /* add to catalog */
 488             case 3: /* add to a new one */
 489                 catalog_add_to_a_playlist(current_track->name,
 490                                           FILE_ATTR_AUDIO,
 491                                           result==3 );
 492                 ret = 0;
 493                 break;
 494         }
 495     }
 496     return ret;
 497 }
 498
 499 /* Menu of viewer options.  Invoked via F1(r) or Menu(p). */
 500 MENUITEM_SETTING(show_icons, &global_settings.playlist_viewer_icons, NULL);
 501 MENUITEM_SETTING(show_indices, &global_settings.playlist_viewer_indices, NULL);
 502 MENUITEM_SETTING(track_display,
 503                  &global_settings.playlist_viewer_track_display, NULL);
 504 MENUITEM_FUNCTION(save_playlist_item, 0, ID2P(LANG_SAVE_DYNAMIC_PLAYLIST),
 505                   save_playlist_func, 0, NULL, Icon_NOICON);
 506 MAKE_MENU(viewer_settings_menu, ID2P(LANG_PLAYLISTVIEWER_SETTINGS),
 507           NULL, Icon_Playlist,
 508           &show_icons, &show_indices, &track_display, &save_playlist_item);
 509 static bool viewer_menu(void)
 510 {
 511     return do_menu(&viewer_settings_menu, NULL) == MENU_ATTACHED_USB;
 512 }
 513
 514 /* Save playlist to disk */
 515 static int save_playlist_func(void)
 516 {
 517     save_playlist_screen(viewer.playlist);
 518     return 0;
 519 }
 520
 521 /* View current playlist */
 522 bool playlist_viewer(void)
 523 {
 524     return playlist_viewer_ex(NULL);
 525 }
 526
 527 static int get_track_num( struct playlist_viewer * local_viewer,
 528                           int selected_item )
 529 {
 530     if( local_viewer->move_track >= 0 )
 531     {
 532         if( local_viewer->selected_track == selected_item )
 533         {
 534             return local_viewer->move_track;
 535         }
 536         else if( local_viewer->selected_track > selected_item
 537               && selected_item >= local_viewer->move_track )
 538         {
 539             return selected_item+1;
 540         }
 541         else if( local_viewer->selected_track < selected_item
 542               && selected_item <= local_viewer->move_track )
 543         {
 544             return selected_item-1;
 545         }
 546     }
 547     return selected_item;
 548 }
 549
 550 static char *playlist_callback_name(int selected_item, void *data, char *buffer)
 551 {
 552     struct playlist_viewer * local_viewer = (struct playlist_viewer *)data;
 553     struct playlist_entry *track = playlist_buffer_get_track(&(local_viewer->buffer), get_track_num(local_viewer,selected_item));
 554     format_line(track, buffer, MAX_PATH);
 555     return(buffer);
 556 }
 557
 558
 559 static int playlist_callback_icons(int selected_item, void *data)
 560 {
 561     struct playlist_viewer * local_viewer=(struct playlist_viewer *)data;
 562     struct playlist_entry *track=
 563         playlist_buffer_get_track(&(local_viewer->buffer),
 564                                   get_track_num(local_viewer, selected_item));
 565     if (track->index == local_viewer->current_playing_track)
 566     {
 567         /* Current playing track */
 568         return Icon_Audio;
 569     }
 570     else if (track->index == local_viewer->move_track)
 571     {
 572         /* Track we are moving */
 573         return Icon_Moving;
 574     }
 575     else if (track->queued)
 576     {
 577         /* Queued track */
 578         return Icon_Queued;
 579     }
 580     else
 581         return Icon_NOICON;
 582 }
 583
 584 /* Main viewer function.  Filename identifies playlist to be viewed.  If NULL,
 585    view current playlist. */
 586 bool playlist_viewer_ex(char* filename)
 587 {
 588     bool ret = false;       /* return value */
 589     bool exit=false;        /* exit viewer */
 590     int button;
 591     struct gui_synclist playlist_lists;
 592     if (!playlist_viewer_init(&viewer, filename, false))
 593         goto exit;
 594
 595     gui_synclist_init(&playlist_lists, playlist_callback_name, &viewer, false, 1);
 596     gui_synclist_set_icon_callback(&playlist_lists,
 597                   global_settings.playlist_viewer_icons?
 598                   &playlist_callback_icons:NULL);
 599     gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 600     gui_synclist_select_item(&playlist_lists, viewer.selected_track);
 601     gui_synclist_set_title(&playlist_lists, str(LANG_PLAYLIST), Icon_Playlist);
 602     gui_synclist_draw(&playlist_lists);
 603     while (!exit)
 604     {
 605         int track;
 606
 607         if (global_status.resume_index != -1 && !viewer.playlist)
 608             playlist_get_resume_info(&track);
 609         else
 610             track = -1;
 611
 612         if (track != viewer.current_playing_track ||
 613             playlist_amount_ex(viewer.playlist) != viewer.num_tracks)
 614         {
 615             /* Playlist has changed (new track started?) */
 616             if (!update_playlist(false))
 617                 goto exit;
 618             /*Needed because update_playlist gives wrong value when
 619                                                             playing is stopped*/
 620             viewer.current_playing_track = track;
 621             gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 622             /* Abort move on playlist change */
 623             viewer.move_track = -1;
 624             gui_synclist_draw(&playlist_lists);
 625         }
 626
 627         /* Timeout so we can determine if play status has changed */
 628         button = get_action(CONTEXT_TREE,HZ/2);
 629         if( (gui_synclist_do_button(&playlist_lists, &button,LIST_WRAP_UNLESS_HELD)) )
 630         {
 631             viewer.selected_track=gui_synclist_get_sel_pos(&playlist_lists);
 632             if(playlist_buffer_needs_reload(&viewer.buffer,
 633                 viewer.selected_track))
 634                 playlist_buffer_load_entries_screen(&viewer.buffer,
 635                     button==ACTION_STD_NEXT?
 636                         FORWARD
 637                         :
 638                         BACKWARD
 639                     );
 640             gui_synclist_draw(&playlist_lists);
 641         }
 642         switch (button)
 643         {
 644             case ACTION_TREE_WPS:
 645             case ACTION_STD_CANCEL:
 646                 exit = true;
 647                 break;
 648             case ACTION_STD_OK:
 649             {
 650                 struct playlist_entry * current_track =
 651                     playlist_buffer_get_track(&viewer.buffer,
 652                     viewer.selected_track);
 653                 if (viewer.move_track >= 0)
 654                 {
 655                     /* Move track */
 656                     int ret_val;
 657
 658                     ret_val = playlist_move(viewer.playlist, viewer.move_track,
 659                         current_track->index);
 660                     if (ret_val < 0)
 661                          gui_syncsplash(HZ, (unsigned char *)"%s %s",
 662                              str(LANG_MOVE), str(LANG_FAILED));
 663                     update_playlist(true);
 664                     viewer.move_track = -1;
 665                 }
 666                 else if (!viewer.playlist)
 667                 {
 668                     /* play new track */
 669                     playlist_start(current_track->index, 0);
 670                     update_playlist(false);
 671                 }
 672                 else
 673                 {
 674                     /* New playlist */
 675                     if (playlist_set_current(viewer.playlist) < 0)
 676                         goto exit;
 677
 678                     playlist_start(current_track->index, 0);
 679
 680                     /* Our playlist is now the current list */
 681                     if (!playlist_viewer_init(&viewer, NULL, true))
 682                         goto exit;
 683                 }
 684                 gui_synclist_draw(&playlist_lists);
 685
 686                 break;
 687             }
 688             case ACTION_STD_CONTEXT:
 689             {
 690                 /* ON+PLAY menu */
 691                 int ret_val;
 692
 693                 ret_val = onplay_menu(viewer.selected_track);
 694
 695                 if (ret_val < 0)
 696                 {
 697                     ret = true;
 698                     goto exit;
 699                 }
 700                 else if (ret > 0)
 701                 {
 702                     /* Playlist changed */
 703                     gui_synclist_del_item(&playlist_lists);
 704                     update_playlist(true);
 705                     if (viewer.num_tracks <= 0)
 706                         exit = true;
 707                     if(viewer.selected_track >= viewer.num_tracks)
 708                         viewer.selected_track = viewer.num_tracks-1;
 709                 }
 710                 gui_synclist_draw(&playlist_lists);
 711                 break;
 712             }
 713             case ACTION_STD_MENU:
 714                 if (viewer_menu())
 715                 {
 716                     ret = true;
 717                     goto exit;
 718                 }
 719                 gui_synclist_set_icon_callback(
 720                     &playlist_lists,
 721                     global_settings.playlist_viewer_icons?
 722                         &playlist_callback_icons:NULL
 723                     );
 724                 gui_synclist_draw(&playlist_lists);
 725                 break;
 726
 727             case ACTION_NONE:
 728                 gui_syncstatusbar_draw(&statusbars, false);
 729                 break;
 730
 731             default:
 732                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 733                 {
 734                     ret = true;
 735                     goto exit;
 736                 }
 737                 break;
 738         }
 739     }
 740
 741 exit:
 742     if (viewer.playlist)
 743         playlist_close(viewer.playlist);
 744     return ret;
 745 }
 746
 747 static char *playlist_search_callback_name(int selected_item, void * data, char *buffer)
 748 {
 749     int *found_indicies = (int*)data;
 750     static struct playlist_track_info track;
 751     playlist_get_track_info(viewer.playlist,found_indicies[selected_item],&track);
 752     format_name(buffer,track.filename);
 753     return(buffer);
 754 }
 755
 756 bool search_playlist(void)
 757 {
 758     char search_str[32] = "";
 759     bool ret = false, exit = false;
 760     int i, playlist_count;
 761     int found_indicies[MAX_PLAYLIST_ENTRIES],found_indicies_count = 0;
 762     int button;
 763     struct gui_synclist playlist_lists;
 764     struct playlist_track_info track;
 765
 766     if (!playlist_viewer_init(&viewer, 0, false))
 767         return ret;
 768     if (kbd_input(search_str,sizeof(search_str)) == -1)
 769         return ret;
 770     lcd_clear_display();
 771     playlist_count = playlist_amount_ex(viewer.playlist);
 772     for (i=0;(i<playlist_count)&&(found_indicies_count<MAX_PLAYLIST_ENTRIES);i++)
 773     {
 774         gui_syncsplash(0, str(LANG_PLAYLIST_SEARCH_MSG),found_indicies_count,
 775                    str(LANG_OFF_ABORT));
 776         if (action_userabort(TIMEOUT_NOBLOCK))
 777         {
 778             if (!found_indicies_count)
 779                 return ret;
 780             break;
 781         }
 782         playlist_get_track_info(viewer.playlist,i,&track);
 783         if (strcasestr(track.filename,search_str))
 784         {
 785             found_indicies[found_indicies_count++] = track.index;
 786         }
 787     }
 788     if (!found_indicies_count)
 789     {
 790         return ret;
 791     }
 792     backlight_on();
 793     gui_synclist_init(&playlist_lists, playlist_search_callback_name,
 794                                 found_indicies, false, 1);
 795     gui_synclist_set_icon_callback(&playlist_lists, NULL);
 796     gui_synclist_set_nb_items(&playlist_lists, found_indicies_count);
 797     gui_synclist_select_item(&playlist_lists, 0);
 798     gui_synclist_draw(&playlist_lists);
 799     while (!exit)
 800     {
 801         button = get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
 802         if (gui_synclist_do_button(&playlist_lists, &button, LIST_WRAP_UNLESS_HELD))
 803             continue;
 804         switch (button)
 805         {
 806             case ACTION_STD_CANCEL:
 807                 exit = true;
 808                 break;
 809
 810             case ACTION_STD_OK:
 811                 playlist_start(
 812                     found_indicies[gui_synclist_get_sel_pos(&playlist_lists)]
 813                     ,0);
 814                 exit = 1;
 815             break;
 816             case ACTION_NONE:
 817                 break;
 818             default:
 819                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 820                 {
 821                     ret = true;
 822                     exit = true;
 823                 }
 824                 break;
 825         }
 826     }
 827     return ret;
 828 }
 829