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 "tree.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 bool show_icons(void);
 129 static bool show_indices(void);
 130 static bool track_display(void);
 131 static bool save_playlist(void);
 132
 133 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 134                                  int names_buffer_size)
 135 {
 136     pb->name_buffer=names_buffer;
 137     pb->buffer_size=names_buffer_size;
 138     pb->first_index=0;
 139     pb->num_loaded=0;
 140 }
 141
 142 /*
 143  * Loads the entries following 'index' in the playlist buffer
 144  */
 145 static void playlist_buffer_load_entries(struct playlist_buffer *pb, int index,
 146                                          enum direction direction)
 147 {
 148     int num_entries = viewer.num_tracks;
 149     char* p = pb->name_buffer;
 150     int remaining = pb->buffer_size;
 151     int i;
 152
 153     pb->first_index = index;
 154     if (num_entries > MAX_PLAYLIST_ENTRIES)
 155         num_entries = MAX_PLAYLIST_ENTRIES;
 156
 157     for(i=0; i<num_entries; i++)
 158     {
 159         int len = playlist_entry_load(&(pb->tracks[i]), index, p, remaining);
 160         if (len < 0)
 161         {
 162             /* Out of name buffer space */
 163             num_entries = i;
 164             break;
 165         }
 166
 167         p += len;
 168         remaining -= len;
 169
 170         if(direction==FORWARD)
 171             index++;
 172         else
 173             index--;
 174         index+=viewer.num_tracks;
 175         index%=viewer.num_tracks;
 176     }
 177     pb->direction=direction;
 178     pb->num_loaded = i;
 179 }
 180
 181 static void playlist_buffer_load_entries_screen(struct playlist_buffer * pb,
 182                                                 enum direction direction)
 183 {
 184     if(direction==FORWARD)
 185     {
 186         int min_start=viewer.selected_track-2*screens[0].nb_lines;
 187         while(min_start<0)
 188             min_start+=viewer.num_tracks;
 189         min_start %= viewer.num_tracks;
 190         playlist_buffer_load_entries(pb, min_start, FORWARD);
 191     }
 192      else
 193     {
 194         int max_start=viewer.selected_track+2*screens[0].nb_lines;
 195         max_start%=viewer.num_tracks;
 196         playlist_buffer_load_entries(pb, max_start, BACKWARD);
 197     }
 198 }
 199
 200 static int playlist_entry_load(struct playlist_entry *entry, int index,
 201                                char* name_buffer, int remaining_size)
 202 {
 203     struct playlist_track_info info;
 204     int len;
 205
 206     /* Playlist viewer orders songs based on display index.  We need to
 207        convert to real playlist index to access track */
 208     index = (index + playlist_get_first_index(viewer.playlist)) %
 209         viewer.num_tracks;
 210     if (playlist_get_track_info(viewer.playlist, index, &info) < 0)
 211         return -1;
 212
 213     len = strlen(info.filename) + 1;
 214
 215     if (len <= remaining_size)
 216     {
 217         strcpy(name_buffer, info.filename);
 218
 219         entry->name = name_buffer;
 220         entry->index = info.index;
 221         entry->display_index = info.display_index;
 222         entry->queued = info.attr & PLAYLIST_ATTR_QUEUED;
 223         entry->skipped = info.attr & PLAYLIST_ATTR_SKIPPED;
 224         return len;
 225     }
 226     return -1;
 227 }
 228
 229 static int playlist_buffer_get_index(struct playlist_buffer *pb, int index )
 230 {
 231     int buffer_index;
 232     if(pb->direction==FORWARD)
 233     {
 234         if(index>=pb->first_index)
 235             buffer_index=index-pb->first_index;
 236         else /* rotation : track0 in buffer + requested track */
 237             buffer_index=(viewer.num_tracks-pb->first_index)+(index);
 238     }
 239     else
 240     {
 241         if(index<=pb->first_index)
 242             buffer_index=pb->first_index-index;
 243         else /* rotation : track0 in buffer + dist from the last track
 244                 to the requested track (num_tracks-requested track) */
 245             buffer_index=(pb->first_index)+(viewer.num_tracks-index);
 246     }
 247     return(buffer_index);
 248 }
 249
 250 #define distance(a, b) \
 251     a>b? (a) - (b) : (b) - (a)
 252 static bool playlist_buffer_needs_reload(struct playlist_buffer* pb, int track_index)
 253 {
 254     if(pb->num_loaded==viewer.num_tracks)
 255         return(false);
 256     int selected_index=playlist_buffer_get_index(pb, track_index);
 257     int first_buffer_index=playlist_buffer_get_index(pb, pb->first_index);
 258     int distance_beginning=distance(selected_index, first_buffer_index);
 259     if(distance_beginning<MIN_BUFFER_MARGIN)
 260         return(true);
 261
 262     if(pb->num_loaded - distance_beginning < MIN_BUFFER_MARGIN)
 263        return(true);
 264     return(false);
 265 }
 266
 267 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 268                                                          int index)
 269 {
 270     int buffer_index=playlist_buffer_get_index(pb, index);
 271     return(&(pb->tracks[buffer_index]));
 272 }
 273
 274 /* Initialize the playlist viewer. */
 275 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 276                                  char* filename, bool reload)
 277 {
 278     char* buffer;
 279     int buffer_size;
 280     bool is_playing = audio_status() & AUDIO_STATUS_PLAY;
 281
 282     if (!filename && !is_playing)
 283         /* Nothing is playing, exit */
 284         return false;
 285
 286     buffer = plugin_get_buffer(&buffer_size);
 287     if (!buffer)
 288         return false;
 289
 290     if (!filename)
 291         viewer->playlist = NULL;
 292     else
 293     {
 294         /* Viewing playlist on disk */
 295         char *dir, *file, *temp_ptr;
 296         char *index_buffer = NULL;
 297         int  index_buffer_size = 0;
 298
 299         viewer->playlist = &temp_playlist;
 300
 301         /* Separate directory from filename */
 302         temp_ptr = strrchr(filename+1,'/');
 303         if (temp_ptr)
 304         {
 305             *temp_ptr = 0;
 306             dir = filename;
 307             file = temp_ptr + 1;
 308         }
 309         else
 310         {
 311             dir = "/";
 312             file = filename+1;
 313         }
 314
 315         if (is_playing)
 316         {
 317             /* Something is playing, use half the plugin buffer for playlist
 318                indices */
 319             index_buffer_size = buffer_size / 2;
 320             index_buffer = buffer;
 321         }
 322
 323         playlist_create_ex(viewer->playlist, dir, file, index_buffer,
 324             index_buffer_size, buffer+index_buffer_size,
 325             buffer_size-index_buffer_size);
 326
 327         if (temp_ptr)
 328             *temp_ptr = '/';
 329
 330         buffer += index_buffer_size;
 331         buffer_size -= index_buffer_size;
 332     }
 333     playlist_buffer_init(&viewer->buffer, buffer, buffer_size );
 334
 335     viewer->move_track = -1;
 336
 337     if (!reload)
 338     {
 339         if (viewer->playlist)
 340             viewer->selected_track = 0;
 341         else
 342             viewer->selected_track = playlist_get_display_index() - 1;
 343     }
 344
 345     if (!update_playlist(true))
 346         return false;
 347     return true;
 348 }
 349
 350 /* Format trackname for display purposes */
 351 static void format_name(char* dest, const char* src)
 352 {
 353     switch (global_settings.playlist_viewer_track_display)
 354     {
 355         case 0:
 356         default:
 357         {
 358             /* Only display the filename */
 359             char* p = strrchr(src, '/');
 360
 361             strcpy(dest, p+1);
 362
 363             /* Remove the extension */
 364             char* q = strrchr(dest, '.');
 365
 366             if (q != NULL)
 367                 *q = '\0';
 368
 369             break;
 370         }
 371         case 1:
 372             /* Full path */
 373             strcpy(dest, src);
 374             break;
 375     }
 376 }
 377
 378 /* Format display line */
 379 static void format_line(const struct playlist_entry* track, char* str,
 380                         int len)
 381 {
 382     char name[MAX_PATH];
 383     char *skipped = "";
 384
 385     format_name(name, track->name);
 386
 387     if (track->skipped)
 388         skipped = "(ERR) ";
 389
 390     if (global_settings.playlist_viewer_indices)
 391         /* Display playlist index */
 392         snprintf(str, len, "%d. %s%s", track->display_index, skipped, name);
 393     else
 394         snprintf(str, len, "%s%s", skipped, name);
 395
 396 }
 397
 398 /* Update playlist in case something has changed or forced */
 399 static bool update_playlist(bool force)
 400 {
 401     if (!viewer.playlist)
 402         playlist_get_resume_info(&viewer.current_playing_track);
 403     else
 404         viewer.current_playing_track = -1;
 405     int nb_tracks=playlist_amount_ex(viewer.playlist);
 406     force=force || nb_tracks != viewer.num_tracks;
 407     if (force)
 408     {
 409         /* Reload tracks */
 410         viewer.num_tracks = nb_tracks;
 411         if (viewer.num_tracks <= 0)
 412             return false;
 413         playlist_buffer_load_entries_screen(&viewer.buffer, FORWARD);
 414         if (viewer.buffer.num_loaded <= 0)
 415             return false;
 416     }
 417     return true;
 418 }
 419
 420 /* Menu of playlist commands.  Invoked via ON+PLAY on main viewer screen.
 421    Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
 422    changed. */
 423 static int onplay_menu(int index)
 424 {
 425     struct menu_item items[4]; /* increase this if you add entries! */
 426     int m, i=0, result, ret = 0;
 427     struct playlist_entry * current_track=
 428         playlist_buffer_get_track(&viewer.buffer, index);
 429     bool current = (current_track->index == viewer.current_playing_track);
 430
 431     items[i].desc = ID2P(LANG_REMOVE);
 432     i++;
 433
 434     items[i].desc = ID2P(LANG_MOVE);
 435     i++;
 436
 437     items[i].desc = ID2P(LANG_CATALOG_ADD_TO);
 438     i++;
 439
 440     items[i].desc = ID2P(LANG_CATALOG_ADD_TO_NEW);
 441     i++;
 442
 443     m = menu_init(items, i, NULL, str(LANG_PLAYLIST_MENU), NULL, NULL);
 444     result = menu_show(m);
 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                                           TREE_ATTR_MPA,
 491                                           result==3 );
 492                 ret = 0;
 493                 break;
 494         }
 495     }
 496     menu_exit(m);
 497     return ret;
 498 }
 499
 500 /* Menu of viewer options.  Invoked via F1(r) or Menu(p). */
 501 static bool viewer_menu(void)
 502 {
 503     int m;
 504     bool result;
 505
 506     static const struct menu_item items[] = {
 507         { ID2P(LANG_SHOW_ICONS),             show_icons },
 508         { ID2P(LANG_SHOW_INDICES),           show_indices },
 509         { ID2P(LANG_TRACK_DISPLAY),          track_display },
 510         { ID2P(LANG_SAVE_DYNAMIC_PLAYLIST),  save_playlist },
 511     };
 512
 513     m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
 514                  NULL, NULL, NULL );
 515     result = menu_run(m);
 516     menu_exit(m);
 517
 518     settings_save();
 519
 520     return result;
 521 }
 522
 523 /* Show icons in viewer? */
 524 static bool show_icons(void)
 525 {
 526     return set_bool((char *)str(LANG_SHOW_ICONS),
 527                     &global_settings.playlist_viewer_icons);
 528 }
 529
 530 /* Show indices of tracks? */
 531 static bool show_indices(void)
 532 {
 533     return set_bool((char *)str(LANG_SHOW_INDICES),
 534                     &global_settings.playlist_viewer_indices);
 535 }
 536
 537 /* How to display a track */
 538 static bool track_display(void)
 539 {
 540     static const struct opt_items names[] = {
 541         { STR(LANG_DISPLAY_TRACK_NAME_ONLY) },
 542         { STR(LANG_DISPLAY_FULL_PATH) }
 543     };
 544
 545     return set_option((char *)str(LANG_TRACK_DISPLAY),
 546                       &global_settings.playlist_viewer_track_display, INT, names, 2,
 547                       NULL);
 548 }
 549
 550 /* Save playlist to disk */
 551 static bool save_playlist(void)
 552 {
 553     save_playlist_screen(viewer.playlist);
 554     return false;
 555 }
 556
 557 /* View current playlist */
 558 bool playlist_viewer(void)
 559 {
 560     return playlist_viewer_ex(NULL);
 561 }
 562
 563 static char *playlist_callback_name(int selected_item, void *data, char *buffer)
 564 {
 565     struct playlist_viewer * local_viewer = (struct playlist_viewer *)data;
 566     struct playlist_entry *track=
 567         playlist_buffer_get_track(&(local_viewer->buffer), selected_item);
 568     format_line(track, buffer, MAX_PATH);
 569     return(buffer);
 570 }
 571
 572
 573 static int playlist_callback_icons(int selected_item, void *data)
 574 {
 575     struct playlist_viewer * local_viewer=(struct playlist_viewer *)data;
 576     struct playlist_entry *track=
 577         playlist_buffer_get_track(&(local_viewer->buffer), selected_item);
 578     if (track->index == local_viewer->current_playing_track)
 579     {
 580         /* Current playing track */
 581         return Icon_Audio;
 582     }
 583     else if (track->index == local_viewer->move_track)
 584     {
 585         /* Track we are moving */
 586         return Icon_Moving;
 587     }
 588     else if (track->queued)
 589     {
 590         /* Queued track */
 591         return Icon_Queued;
 592     }
 593     else
 594         return Icon_NOICON;
 595 }
 596
 597 /* Main viewer function.  Filename identifies playlist to be viewed.  If NULL,
 598    view current playlist. */
 599 bool playlist_viewer_ex(char* filename)
 600 {
 601     bool ret = false;       /* return value */
 602     bool exit=false;        /* exit viewer */
 603     int button;
 604     struct gui_synclist playlist_lists;
 605     if (!playlist_viewer_init(&viewer, filename, false))
 606         goto exit;
 607
 608     gui_synclist_init(&playlist_lists, playlist_callback_name, &viewer, false, 1);
 609     gui_synclist_set_icon_callback(&playlist_lists,
 610                   global_settings.playlist_viewer_icons?
 611                   &playlist_callback_icons:NULL);
 612     gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 613     gui_synclist_select_item(&playlist_lists, viewer.selected_track);
 614     gui_synclist_set_title(&playlist_lists, str(LANG_PLAYLIST_MENU), Icon_Playlist);
 615     gui_synclist_draw(&playlist_lists);
 616     action_signalscreenchange();
 617     while (!exit)
 618     {
 619         int track;
 620         if (!viewer.playlist && !(audio_status() & AUDIO_STATUS_PLAY))
 621         {
 622             /* Play has stopped */
 623 #ifdef HAVE_LCD_CHARCELLS
 624             gui_syncsplash(HZ, str(LANG_END_PLAYLIST_PLAYER));
 625 #else
 626             gui_syncsplash(HZ, str(LANG_END_PLAYLIST_RECORDER));
 627 #endif
 628             goto exit;
 629         }
 630
 631         if (viewer.move_track != -1)
 632             gui_synclist_flash(&playlist_lists);
 633
 634         if (!viewer.playlist)
 635             playlist_get_resume_info(&track);
 636         else
 637             track = -1;
 638
 639         if (track != viewer.current_playing_track ||
 640             playlist_amount_ex(viewer.playlist) != viewer.num_tracks)
 641         {
 642             /* Playlist has changed (new track started?) */
 643             if (!update_playlist(false))
 644                 goto exit;
 645             gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 646             /* Abort move on playlist change */
 647             viewer.move_track = -1;
 648             gui_synclist_draw(&playlist_lists);
 649         }
 650
 651         /* Timeout so we can determine if play status has changed */
 652         button = get_action(CONTEXT_TREE,HZ/2);
 653         int list_action;
 654         if( (list_action=gui_synclist_do_button(&playlist_lists, button,LIST_WRAP_UNLESS_HELD))!=0 )
 655         {
 656             viewer.selected_track=gui_synclist_get_sel_pos(&playlist_lists);
 657             if(playlist_buffer_needs_reload(&viewer.buffer,
 658                 viewer.selected_track))
 659                 playlist_buffer_load_entries_screen(&viewer.buffer,
 660                     list_action==ACTION_STD_NEXT?
 661                         FORWARD
 662                         :
 663                         BACKWARD
 664                     );
 665         }
 666         switch (button)
 667         {
 668             case ACTION_TREE_WPS:
 669             case ACTION_STD_CANCEL:
 670                 exit = true;
 671                 break;
 672             case ACTION_STD_OK:
 673             {
 674                 struct playlist_entry * current_track =
 675                     playlist_buffer_get_track(&viewer.buffer,
 676                     viewer.selected_track);
 677                 if (viewer.move_track >= 0)
 678                 {
 679                     /* Move track */
 680                     int ret;
 681
 682                     ret = playlist_move(viewer.playlist, viewer.move_track,
 683                         current_track->index);
 684                     if (ret < 0)
 685                         gui_syncsplash(HZ, str(LANG_MOVE_FAILED));
 686
 687                     update_playlist(true);
 688                     viewer.move_track = -1;
 689                 }
 690                 else if (!viewer.playlist)
 691                 {
 692                     /* play new track */
 693                     playlist_start(current_track->index, 0);
 694                     update_playlist(false);
 695                 }
 696                 else
 697                 {
 698                     /* New playlist */
 699                     if (playlist_set_current(viewer.playlist) < 0)
 700                         goto exit;
 701
 702                     playlist_start(current_track->index, 0);
 703
 704                     /* Our playlist is now the current list */
 705                     if (!playlist_viewer_init(&viewer, NULL, true))
 706                         goto exit;
 707                 }
 708                 gui_synclist_draw(&playlist_lists);
 709
 710                 break;
 711             }
 712             case ACTION_STD_CONTEXT:
 713             {
 714                 /* ON+PLAY menu */
 715                 int ret;
 716
 717                 ret = onplay_menu(viewer.selected_track);
 718
 719                 if (ret < 0)
 720                 {
 721                     ret = true;
 722                     goto exit;
 723                 }
 724                 else if (ret > 0)
 725                 {
 726                     /* Playlist changed */
 727                     gui_synclist_del_item(&playlist_lists);
 728                     update_playlist(true);
 729                     if (viewer.num_tracks <= 0)
 730                         exit = true;
 731                     if(viewer.selected_track >= viewer.num_tracks)
 732                         viewer.selected_track = viewer.num_tracks-1;
 733                 }
 734                 gui_synclist_draw(&playlist_lists);
 735                 break;
 736             }
 737             case ACTION_STD_MENU:
 738                 if (viewer_menu())
 739                 {
 740                     ret = true;
 741                     goto exit;
 742                 }
 743                 gui_synclist_set_icon_callback(
 744                     &playlist_lists,
 745                     global_settings.playlist_viewer_icons?
 746                         &playlist_callback_icons:NULL
 747                     );
 748                 gui_synclist_draw(&playlist_lists);
 749                 break;
 750
 751             case ACTION_NONE:
 752                 gui_syncstatusbar_draw(&statusbars, false);
 753                 break;
 754
 755             default:
 756                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 757                 {
 758                     ret = true;
 759                     goto exit;
 760                 }
 761                 break;
 762         }
 763     }
 764
 765 exit:
 766     if (viewer.playlist)
 767         playlist_close(viewer.playlist);
 768     action_signalscreenchange();
 769     return ret;
 770 }
 771
 772 static char *playlist_search_callback_name(int selected_item, void * data, char *buffer)
 773 {
 774     int *found_indicies = (int*)data;
 775     static struct playlist_track_info track;
 776     playlist_get_track_info(viewer.playlist,found_indicies[selected_item],&track);
 777     format_name(buffer,track.filename);
 778     return(buffer);
 779 }
 780
 781 bool search_playlist(void)
 782 {
 783     char search_str[32] = "";
 784     bool ret = false, exit = false;
 785     int i, playlist_count;
 786     int found_indicies[MAX_PLAYLIST_ENTRIES],found_indicies_count = 0;
 787     int button;
 788     struct gui_synclist playlist_lists;
 789     struct playlist_track_info track;
 790
 791     if (!playlist_viewer_init(&viewer, 0, false))
 792         return ret;
 793     if (kbd_input(search_str,sizeof(search_str)) == -1)
 794         return ret;
 795     lcd_clear_display();
 796     playlist_count = playlist_amount_ex(viewer.playlist);
 797     for (i=0;(i<playlist_count)&&(found_indicies_count<MAX_PLAYLIST_ENTRIES);i++)
 798     {
 799         gui_syncsplash(0, str(LANG_PLAYLIST_SEARCH_MSG),found_indicies_count,
 800 #if CONFIG_KEYPAD == PLAYER_PAD
 801                    str(LANG_STOP_ABORT)
 802 #else
 803                    str(LANG_OFF_ABORT)
 804 #endif
 805         );
 806         if (action_userabort(TIMEOUT_NOBLOCK))
 807             return ret;
 808         playlist_get_track_info(viewer.playlist,i,&track);
 809         if (strcasestr(track.filename,search_str))
 810         {
 811             found_indicies[found_indicies_count++] = track.index;
 812         }
 813     }
 814     if (!found_indicies_count)
 815     {
 816         return ret;
 817     }
 818     backlight_on();
 819     gui_synclist_init(&playlist_lists, playlist_search_callback_name,
 820                                 found_indicies, false, 1);
 821     gui_synclist_set_icon_callback(&playlist_lists, NULL);
 822     gui_synclist_set_nb_items(&playlist_lists, found_indicies_count);
 823     gui_synclist_select_item(&playlist_lists, 0);
 824     gui_synclist_draw(&playlist_lists);
 825     while (!exit)
 826     {
 827         button = get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
 828         if (gui_synclist_do_button(&playlist_lists, button,LIST_WRAP_UNLESS_HELD))
 829             continue;
 830         switch (button)
 831         {
 832             case ACTION_STD_CANCEL:
 833                 exit = true;
 834                 break;
 835
 836             case ACTION_STD_OK:
 837                 playlist_start(
 838                     found_indicies[gui_synclist_get_sel_pos(&playlist_lists)]
 839                     ,0);
 840                 exit = 1;
 841             break;
 842             case ACTION_NONE:
 843                 break;
 844             default:
 845                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 846                 {
 847                     ret = true;
 848                     exit = true;
 849                 }
 850                 break;
 851         }
 852     }
 853     action_signalscreenchange();
 854     return ret;
 855 }
 856