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  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22 /*
  23  * Kevin Ferrare 2005/10/16
  24  * multi-screen support, rewrote a lot of code
  25  */
  26 #include <string.h>
  27 #include <sprintf.h>
  28 #include "playlist.h"
  29 #include "audio.h"
  30 #include "screens.h"
  31 #include "status.h"
  32 #include "settings.h"
  33 #include "icons.h"
  34 #include "menu.h"
  35 #include "plugin.h"
  36 #include "keyboard.h"
  37 #include "filetypes.h"
  38 #include "onplay.h"
  39 #include "talk.h"
  40 #include "misc.h"
  41 #include "action.h"
  42 #include "debug.h"
  43 #include "backlight.h"
  44
  45 #include "lang.h"
  46
  47 #include "playlist_viewer.h"
  48 #include "playlist_catalog.h"
  49 #include "icon.h"
  50 #include "list.h"
  51 #include "statusbar.h"
  52 #include "splash.h"
  53 #include "playlist_menu.h"
  54 #include "action.h"
  55
  56 /* Maximum number of tracks we can have loaded at one time */
  57 #define MAX_PLAYLIST_ENTRIES 200
  58
  59 /* The number of items between the selected one and the end/start of
  60  * the buffer under which the buffer must reload */
  61 #define MIN_BUFFER_MARGIN (screens[0].getnblines()+1)
  62
  63 /* Information about a specific track */
  64 struct playlist_entry {
  65     char *name;                 /* Formatted track name                     */
  66     int index;                  /* Playlist index                           */
  67     int display_index;          /* Display index                            */
  68     bool queued;                /* Is track queued?                         */
  69     bool skipped;               /* Is track marked as bad?                  */
  70 };
  71
  72 enum direction
  73 {
  74     FORWARD,
  75     BACKWARD
  76 };
  77
  78 struct playlist_buffer
  79 {
  80     char *name_buffer;        /* Buffer used to store track names */
  81     int buffer_size;          /* Size of name buffer */
  82
  83     int first_index;          /* Real index of first track loaded inside
  84                                  the buffer */
  85
  86     enum direction direction; /* Direction of the buffer (if the buffer
  87                                  was loaded BACKWARD, the last track in
  88                                  the buffer has a real index < to the
  89                                  real index of the the first track)*/
  90
  91     struct playlist_entry tracks[MAX_PLAYLIST_ENTRIES];
  92     int num_loaded;           /* Number of track entries loaded in buffer */
  93 };
  94
  95 /* Global playlist viewer settings */
  96 struct playlist_viewer {
  97     struct playlist_info* playlist; /* playlist being viewed                */
  98     int num_tracks;             /* Number of tracks in playlist             */
  99     int current_playing_track;  /* Index of current playing track           */
 100     int selected_track;         /* The selected track, relative (first is 0)*/
 101     int move_track;             /* Playlist index of track to move or -1    */
 102     struct playlist_buffer buffer;
 103 };
 104
 105 static struct playlist_viewer  viewer;
 106
 107 /* Used when viewing playlists on disk */
 108 static struct playlist_info temp_playlist;
 109
 110 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 111                                  int names_buffer_size);
 112 static void playlist_buffer_load_entries(struct playlist_buffer * pb, int index,
 113                                          enum direction direction);
 114 static int playlist_entry_load(struct playlist_entry *entry, int index,
 115                                char* name_buffer, int remaining_size);
 116
 117 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 118                                                          int index);
 119
 120 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 121                                  const char* filename, bool reload);
 122
 123 static void format_name(char* dest, const char* src);
 124 static void format_line(const struct playlist_entry* track, char* str,
 125                         int len);
 126
 127 static bool update_playlist(bool force);
 128 static int  onplay_menu(int index);
 129 static bool viewer_menu(void);
 130 static int save_playlist_func(void);
 131
 132 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 133                                  int names_buffer_size)
 134 {
 135     pb->name_buffer=names_buffer;
 136     pb->buffer_size=names_buffer_size;
 137     pb->first_index=0;
 138     pb->num_loaded=0;
 139 }
 140
 141 /*
 142  * Loads the entries following 'index' in the playlist buffer
 143  */
 144 static void playlist_buffer_load_entries(struct playlist_buffer *pb, int index,
 145                                          enum direction direction)
 146 {
 147     int num_entries = viewer.num_tracks;
 148     char* p = pb->name_buffer;
 149     int remaining = pb->buffer_size;
 150     int i;
 151
 152     pb->first_index = index;
 153     if (num_entries > MAX_PLAYLIST_ENTRIES)
 154         num_entries = MAX_PLAYLIST_ENTRIES;
 155
 156     for(i=0; i<num_entries; i++)
 157     {
 158         int len = playlist_entry_load(&(pb->tracks[i]), index, p, remaining);
 159         if (len < 0)
 160         {
 161             /* Out of name buffer space */
 162             num_entries = i;
 163             break;
 164         }
 165
 166         p += len;
 167         remaining -= len;
 168
 169         if(direction==FORWARD)
 170             index++;
 171         else
 172             index--;
 173         index+=viewer.num_tracks;
 174         index%=viewer.num_tracks;
 175     }
 176     pb->direction=direction;
 177     pb->num_loaded = i;
 178 }
 179
 180 static void playlist_buffer_load_entries_screen(struct playlist_buffer * pb,
 181                                                 enum direction direction)
 182 {
 183     if(direction==FORWARD)
 184     {
 185         int min_start=viewer.selected_track-2*screens[0].getnblines();
 186         while(min_start<0)
 187             min_start+=viewer.num_tracks;
 188         min_start %= viewer.num_tracks;
 189         playlist_buffer_load_entries(pb, min_start, FORWARD);
 190     }
 191      else
 192     {
 193         int max_start=viewer.selected_track+2*screens[0].getnblines();
 194         max_start%=viewer.num_tracks;
 195         playlist_buffer_load_entries(pb, max_start, BACKWARD);
 196     }
 197 }
 198
 199 static int playlist_entry_load(struct playlist_entry *entry, int index,
 200                                char* name_buffer, int remaining_size)
 201 {
 202     struct playlist_track_info info;
 203     int len;
 204
 205     /* Playlist viewer orders songs based on display index.  We need to
 206        convert to real playlist index to access track */
 207     index = (index + playlist_get_first_index(viewer.playlist)) %
 208         viewer.num_tracks;
 209     if (playlist_get_track_info(viewer.playlist, index, &info) < 0)
 210         return -1;
 211
 212     len = strlen(info.filename) + 1;
 213
 214     if (len <= remaining_size)
 215     {
 216         strcpy(name_buffer, info.filename);
 217
 218         entry->name = name_buffer;
 219         entry->index = info.index;
 220         entry->display_index = info.display_index;
 221         entry->queued = info.attr & PLAYLIST_ATTR_QUEUED;
 222         entry->skipped = info.attr & PLAYLIST_ATTR_SKIPPED;
 223         return len;
 224     }
 225     return -1;
 226 }
 227
 228 static int playlist_buffer_get_index(struct playlist_buffer *pb, int index)
 229 {
 230     int buffer_index;
 231     if(pb->direction==FORWARD)
 232     {
 233         if(index>=pb->first_index)
 234             buffer_index=index-pb->first_index;
 235         else /* rotation : track0 in buffer + requested track */
 236             buffer_index=(viewer.num_tracks-pb->first_index)+(index);
 237     }
 238     else
 239     {
 240         if(index<=pb->first_index)
 241             buffer_index=pb->first_index-index;
 242         else /* rotation : track0 in buffer + dist from the last track
 243                 to the requested track (num_tracks-requested track) */
 244             buffer_index=(pb->first_index)+(viewer.num_tracks-index);
 245     }
 246     return(buffer_index);
 247 }
 248
 249 #define distance(a, b) \
 250     a>b? (a) - (b) : (b) - (a)
 251 static bool playlist_buffer_needs_reload(struct playlist_buffer* pb,
 252                                          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                                  const char* filename, bool reload)
 277 {
 278     char* buffer;
 279     size_t buffer_size;
 280     bool is_playing = audio_status() & (AUDIO_STATUS_PLAY | AUDIO_STATUS_PAUSE);
 281     bool have_list = filename || is_playing;
 282     if (!have_list && (global_status.resume_index != -1))
 283     {
 284         /* Try to restore the list from control file */
 285         have_list = (playlist_resume() != -1);
 286     }
 287     if (!have_list && (playlist_amount() > 0))
 288     {
 289          /*If dynamic playlist still exists, view it anyway even
 290         if playback has reached the end of the playlist */
 291         have_list = true;
 292     }
 293     if (!have_list)
 294     {
 295         /* Nothing to view, exit */
 296         splash(HZ, str(LANG_CATALOG_NO_PLAYLISTS));
 297         return false;
 298     }
 299
 300     buffer = plugin_get_buffer(&buffer_size);
 301     if (!buffer)
 302         return false;
 303
 304     if (!filename)
 305         viewer->playlist = NULL;
 306     else
 307     {
 308         /* Viewing playlist on disk */
 309         const char *dir, *file;
 310         char *temp_ptr;
 311         char *index_buffer = NULL;
 312         ssize_t index_buffer_size = 0;
 313
 314         viewer->playlist = &temp_playlist;
 315
 316         /* Separate directory from filename */
 317         temp_ptr = strrchr(filename+1,'/');
 318         if (temp_ptr)
 319         {
 320             *temp_ptr = 0;
 321             dir = filename;
 322             file = temp_ptr + 1;
 323         }
 324         else
 325         {
 326             dir = "/";
 327             file = filename+1;
 328         }
 329
 330         if (is_playing)
 331         {
 332             /* Something is playing, use half the plugin buffer for playlist
 333                indices */
 334             index_buffer_size = buffer_size / 2;
 335             index_buffer = buffer;
 336         }
 337
 338         playlist_create_ex(viewer->playlist, dir, file, index_buffer,
 339             index_buffer_size, buffer+index_buffer_size,
 340             buffer_size-index_buffer_size);
 341
 342         if (temp_ptr)
 343             *temp_ptr = '/';
 344
 345         buffer += index_buffer_size;
 346         buffer_size -= index_buffer_size;
 347     }
 348     playlist_buffer_init(&viewer->buffer, buffer, buffer_size );
 349
 350     viewer->move_track = -1;
 351
 352     if (!reload)
 353     {
 354         if (viewer->playlist)
 355             viewer->selected_track = 0;
 356         else
 357             viewer->selected_track = playlist_get_display_index() - 1;
 358     }
 359
 360     if (!update_playlist(true))
 361         return false;
 362     return true;
 363 }
 364
 365 /* Format trackname for display purposes */
 366 static void format_name(char* dest, const char* src)
 367 {
 368     switch (global_settings.playlist_viewer_track_display)
 369     {
 370         case 0:
 371         default:
 372         {
 373             /* Only display the filename */
 374             char* p = strrchr(src, '/');
 375
 376             strcpy(dest, p+1);
 377
 378             /* Remove the extension */
 379             strrsplt(dest, '.');
 380
 381             break;
 382         }
 383         case 1:
 384             /* Full path */
 385             strcpy(dest, src);
 386             break;
 387     }
 388 }
 389
 390 /* Format display line */
 391 static void format_line(const struct playlist_entry* track, char* str,
 392                         int len)
 393 {
 394     char name[MAX_PATH];
 395     char *skipped = "";
 396
 397     format_name(name, track->name);
 398
 399     if (track->skipped)
 400         skipped = "(ERR) ";
 401
 402     if (global_settings.playlist_viewer_indices)
 403         /* Display playlist index */
 404         snprintf(str, len, "%d. %s%s", track->display_index, skipped, name);
 405     else
 406         snprintf(str, len, "%s%s", skipped, name);
 407
 408 }
 409
 410 /* Update playlist in case something has changed or forced */
 411 static bool update_playlist(bool force)
 412 {
 413     if (!viewer.playlist)
 414         playlist_get_resume_info(&viewer.current_playing_track);
 415     else
 416         viewer.current_playing_track = -1;
 417     int nb_tracks=playlist_amount_ex(viewer.playlist);
 418     force=force || nb_tracks != viewer.num_tracks;
 419     if (force)
 420     {
 421         /* Reload tracks */
 422         viewer.num_tracks = nb_tracks;
 423         if (viewer.num_tracks <= 0)
 424             return false;
 425         playlist_buffer_load_entries_screen(&viewer.buffer, FORWARD);
 426         if (viewer.buffer.num_loaded <= 0)
 427             return false;
 428     }
 429     return true;
 430 }
 431
 432 /* Menu of playlist commands.  Invoked via ON+PLAY on main viewer screen.
 433    Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
 434    changed. */
 435 static int onplay_menu(int index)
 436 {
 437     int result, ret = 0;
 438     struct playlist_entry * current_track=
 439         playlist_buffer_get_track(&viewer.buffer, index);
 440     MENUITEM_STRINGLIST(menu_items, ID2P(LANG_PLAYLIST), NULL,
 441                         ID2P(LANG_REMOVE), ID2P(LANG_MOVE),
 442                         ID2P(LANG_CATALOG_ADD_TO), ID2P(LANG_CATALOG_ADD_TO_NEW));
 443     bool current = (current_track->index == viewer.current_playing_track);
 444
 445     result = do_menu(&menu_items, NULL, NULL, false);
 446     if (result == MENU_ATTACHED_USB)
 447     {
 448         ret = -1;
 449     }
 450     else if (result >= 0)
 451     {
 452         /* Abort current move */
 453         viewer.move_track = -1;
 454
 455         switch (result)
 456         {
 457             case 0:
 458                 /* delete track */
 459                 playlist_delete(viewer.playlist, current_track->index);
 460                 if (current)
 461                 {
 462                     if (playlist_amount_ex(viewer.playlist) <= 0)
 463                         audio_stop();
 464                     else
 465                     {
 466                        /* Start playing new track except if it's the lasttrack
 467                           track in the playlist and repeat mode is disabled */
 468                         current_track =
 469                             playlist_buffer_get_track(&viewer.buffer, index);
 470                         if (current_track->display_index!=viewer.num_tracks ||
 471                             global_settings.repeat_mode == REPEAT_ALL)
 472                         {
 473 #if CONFIG_CODEC != SWCODEC
 474                             talk_buffer_steal(); /* will use the mp3 buffer */
 475 #endif
 476                             audio_play(0);
 477                             viewer.current_playing_track = -1;
 478                         }
 479                     }
 480                 }
 481                 ret = 1;
 482                 break;
 483             case 1:
 484                 /* move track */
 485                 viewer.move_track = current_track->index;
 486                 ret = 0;
 487                 break;
 488             case 2: /* add to catalog */
 489             case 3: /* add to a new one */
 490                 catalog_add_to_a_playlist(current_track->name,
 491                                           FILE_ATTR_AUDIO,
 492                                           result==3, NULL);
 493                 ret = 0;
 494                 break;
 495         }
 496     }
 497     return ret;
 498 }
 499
 500 /* Menu of viewer options.  Invoked via F1(r) or Menu(p). */
 501 MENUITEM_SETTING(show_icons, &global_settings.playlist_viewer_icons, NULL);
 502 MENUITEM_SETTING(show_indices, &global_settings.playlist_viewer_indices, NULL);
 503 MENUITEM_SETTING(track_display,
 504                  &global_settings.playlist_viewer_track_display, NULL);
 505 MENUITEM_FUNCTION(save_playlist_item, 0, ID2P(LANG_SAVE_DYNAMIC_PLAYLIST),
 506                   save_playlist_func, 0, NULL, Icon_NOICON);
 507 MAKE_MENU(viewer_settings_menu, ID2P(LANG_PLAYLISTVIEWER_SETTINGS),
 508           NULL, Icon_Playlist,
 509           &show_icons, &show_indices, &track_display, &save_playlist_item);
 510 static bool viewer_menu(void)
 511 {
 512     return do_menu(&viewer_settings_menu, NULL, NULL, false) == MENU_ATTACHED_USB;
 513 }
 514
 515 /* Save playlist to disk */
 516 static int save_playlist_func(void)
 517 {
 518     save_playlist_screen(viewer.playlist);
 519     return 0;
 520 }
 521
 522 /* View current playlist */
 523 bool playlist_viewer(void)
 524 {
 525     return playlist_viewer_ex(NULL);
 526 }
 527
 528 static int get_track_num( struct playlist_viewer * local_viewer,
 529                           int selected_item )
 530 {
 531     if( local_viewer->move_track >= 0 )
 532     {
 533         if( local_viewer->selected_track == selected_item )
 534         {
 535             return local_viewer->move_track;
 536         }
 537         else if( local_viewer->selected_track > selected_item
 538               && selected_item >= local_viewer->move_track )
 539         {
 540             return selected_item+1;
 541         }
 542         else if( local_viewer->selected_track < selected_item
 543               && selected_item <= local_viewer->move_track )
 544         {
 545             return selected_item-1;
 546         }
 547     }
 548     return selected_item;
 549 }
 550
 551 static char *playlist_callback_name(int selected_item,
 552                                     void *data,
 553                                     char *buffer,
 554                                     size_t buffer_len)
 555 {
 556     struct playlist_viewer * local_viewer = (struct playlist_viewer *)data;
 557
 558     int track_num = get_track_num(local_viewer, selected_item);
 559     struct playlist_entry *track =
 560        playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 561
 562     format_line(track, buffer, buffer_len);
 563
 564     return(buffer);
 565 }
 566
 567
 568 static int playlist_callback_icons(int selected_item, void *data)
 569 {
 570     struct playlist_viewer * local_viewer=(struct playlist_viewer *)data;
 571
 572     int track_num = get_track_num(local_viewer, selected_item);
 573     struct playlist_entry *track=
 574         playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 575
 576     if (track->index == local_viewer->current_playing_track)
 577     {
 578         /* Current playing track */
 579         return Icon_Audio;
 580     }
 581     else if (track->index == local_viewer->move_track)
 582     {
 583         /* Track we are moving */
 584         return Icon_Moving;
 585     }
 586     else if (track->queued)
 587     {
 588         /* Queued track */
 589         return Icon_Queued;
 590     }
 591     else
 592         return Icon_NOICON;
 593 }
 594
 595 /* Main viewer function.  Filename identifies playlist to be viewed.  If NULL,
 596    view current playlist. */
 597 bool playlist_viewer_ex(const char* filename)
 598 {
 599     bool ret = false;       /* return value */
 600     bool exit=false;        /* exit viewer */
 601     int button;
 602     struct gui_synclist playlist_lists;
 603     if (!playlist_viewer_init(&viewer, filename, false))
 604         goto exit;
 605
 606     gui_synclist_init(&playlist_lists, playlist_callback_name,
 607                       &viewer, false, 1, NULL);
 608     gui_synclist_set_icon_callback(&playlist_lists,
 609                   global_settings.playlist_viewer_icons?
 610                   &playlist_callback_icons:NULL);
 611     gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 612     gui_synclist_select_item(&playlist_lists, viewer.selected_track);
 613     gui_synclist_set_title(&playlist_lists, str(LANG_PLAYLIST), Icon_Playlist);
 614     gui_synclist_draw(&playlist_lists);
 615     while (!exit)
 616     {
 617         int track;
 618
 619         if (global_status.resume_index != -1 && !viewer.playlist)
 620             playlist_get_resume_info(&track);
 621         else
 622             track = -1;
 623
 624         if (track != viewer.current_playing_track ||
 625             playlist_amount_ex(viewer.playlist) != viewer.num_tracks)
 626         {
 627             /* Playlist has changed (new track started?) */
 628             if (!update_playlist(false))
 629                 goto exit;
 630             /*Needed because update_playlist gives wrong value when
 631                                                             playing is stopped*/
 632             viewer.current_playing_track = track;
 633             gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 634             /* Abort move on playlist change */
 635             viewer.move_track = -1;
 636             gui_synclist_draw(&playlist_lists);
 637         }
 638
 639         /* Timeout so we can determine if play status has changed */
 640         button = get_action(CONTEXT_TREE,HZ/2);
 641         if( (gui_synclist_do_button(&playlist_lists, &button,LIST_WRAP_UNLESS_HELD)) )
 642         {
 643             viewer.selected_track=gui_synclist_get_sel_pos(&playlist_lists);
 644             if(playlist_buffer_needs_reload(&viewer.buffer,
 645                 viewer.selected_track))
 646                 playlist_buffer_load_entries_screen(&viewer.buffer,
 647                     button==ACTION_STD_NEXT?
 648                         FORWARD
 649                         :
 650                         BACKWARD
 651                     );
 652             gui_synclist_draw(&playlist_lists);
 653         }
 654         switch (button)
 655         {
 656             case ACTION_TREE_WPS:
 657             case ACTION_STD_CANCEL:
 658             {
 659                 if (viewer.move_track >= 0)
 660                 {
 661                     viewer.selected_track = viewer.move_track;
 662                     gui_synclist_select_item(&playlist_lists, viewer.move_track);
 663                     viewer.move_track = -1;
 664                     gui_synclist_draw(&playlist_lists);
 665                 }
 666                 else
 667                     exit = true;
 668                 break;
 669             }
 670             case ACTION_STD_OK:
 671             {
 672                 struct playlist_entry * current_track =
 673                     playlist_buffer_get_track(&viewer.buffer,
 674                     viewer.selected_track);
 675                 if (viewer.move_track >= 0)
 676                 {
 677                     /* Move track */
 678                     int ret_val;
 679
 680                     ret_val = playlist_move(viewer.playlist, viewer.move_track,
 681                         current_track->index);
 682                     if (ret_val < 0)
 683                          splashf(HZ, (unsigned char *)"%s %s", str(LANG_MOVE),
 684                                                                str(LANG_FAILED));
 685                     update_playlist(true);
 686                     viewer.move_track = -1;
 687                 }
 688                 else if (!viewer.playlist)
 689                 {
 690                     /* play new track */
 691                     playlist_start(current_track->index, 0);
 692                     update_playlist(false);
 693                 }
 694                 else
 695                 {
 696                     /* New playlist */
 697                     if (playlist_set_current(viewer.playlist) < 0)
 698                         goto exit;
 699
 700                     playlist_start(current_track->index, 0);
 701
 702                     /* Our playlist is now the current list */
 703                     if (!playlist_viewer_init(&viewer, NULL, true))
 704                         goto exit;
 705                 }
 706                 gui_synclist_draw(&playlist_lists);
 707
 708                 break;
 709             }
 710             case ACTION_STD_CONTEXT:
 711             {
 712                 /* ON+PLAY menu */
 713                 int ret_val;
 714
 715                 ret_val = onplay_menu(viewer.selected_track);
 716
 717                 if (ret_val < 0)
 718                 {
 719                     ret = true;
 720                     goto exit;
 721                 }
 722                 else if (ret > 0)
 723                 {
 724                     /* Playlist changed */
 725                     gui_synclist_del_item(&playlist_lists);
 726                     update_playlist(true);
 727                     if (viewer.num_tracks <= 0)
 728                         exit = true;
 729                     if(viewer.selected_track >= viewer.num_tracks)
 730                         viewer.selected_track = viewer.num_tracks-1;
 731                 }
 732                 gui_synclist_draw(&playlist_lists);
 733                 break;
 734             }
 735             case ACTION_STD_MENU:
 736                 if (viewer_menu())
 737                 {
 738                     ret = true;
 739                     goto exit;
 740                 }
 741                 gui_synclist_set_icon_callback(
 742                     &playlist_lists,
 743                     global_settings.playlist_viewer_icons?
 744                         &playlist_callback_icons:NULL
 745                     );
 746                 gui_synclist_draw(&playlist_lists);
 747                 break;
 748
 749             default:
 750                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 751                 {
 752                     ret = true;
 753                     goto exit;
 754                 }
 755                 break;
 756         }
 757     }
 758
 759 exit:
 760     if (viewer.playlist)
 761         playlist_close(viewer.playlist);
 762     return ret;
 763 }
 764
 765 static char *playlist_search_callback_name(int selected_item, void * data,
 766                                            char *buffer, size_t buffer_len)
 767 {
 768     (void)buffer_len; /* this should probably be used */
 769     int *found_indicies = (int*)data;
 770     static struct playlist_track_info track;
 771     playlist_get_track_info(viewer.playlist, found_indicies[selected_item], &track);
 772     format_name(buffer, track.filename);
 773     return(buffer);
 774 }
 775
 776 bool search_playlist(void)
 777 {
 778     char search_str[32] = "";
 779     bool ret = false, exit = false;
 780     int i, playlist_count;
 781     int found_indicies[MAX_PLAYLIST_ENTRIES];
 782     int found_indicies_count = 0, last_found_count = -1;
 783     int button;
 784     struct gui_synclist playlist_lists;
 785     struct playlist_track_info track;
 786
 787     if (!playlist_viewer_init(&viewer, 0, false))
 788         return ret;
 789     if (kbd_input(search_str, sizeof(search_str)) == -1)
 790         return ret;
 791     lcd_clear_display();
 792     playlist_count = playlist_amount_ex(viewer.playlist);
 793
 794     cpu_boost(true);
 795
 796     for (i=0; (i<playlist_count)&&(found_indicies_count<MAX_PLAYLIST_ENTRIES); i++)
 797     {
 798         if (found_indicies_count != last_found_count)
 799         {
 800             splashf(0, str(LANG_PLAYLIST_SEARCH_MSG), found_indicies_count,
 801                        str(LANG_OFF_ABORT));
 802             last_found_count = found_indicies_count;
 803         }
 804
 805         if (action_userabort(TIMEOUT_NOBLOCK))
 806             break;
 807
 808         playlist_get_track_info(viewer.playlist, i, &track);
 809
 810         if (strcasestr(track.filename,search_str))
 811             found_indicies[found_indicies_count++] = track.index;
 812
 813         yield();
 814     }
 815
 816     cpu_boost(false);
 817
 818     if (!found_indicies_count)
 819     {
 820         return ret;
 821     }
 822     backlight_on();
 823
 824     gui_synclist_init(&playlist_lists, playlist_search_callback_name,
 825                       found_indicies, false, 1, NULL);
 826     gui_synclist_set_title(&playlist_lists, str(LANG_SEARCH_RESULTS), NOICON);
 827     gui_synclist_set_icon_callback(&playlist_lists, NULL);
 828     gui_synclist_set_nb_items(&playlist_lists, found_indicies_count);
 829     gui_synclist_select_item(&playlist_lists, 0);
 830     gui_synclist_draw(&playlist_lists);
 831     while (!exit)
 832     {
 833         button = get_action(CONTEXT_LIST, HZ/4);
 834         if (gui_synclist_do_button(&playlist_lists, &button, LIST_WRAP_UNLESS_HELD))
 835             continue;
 836         switch (button)
 837         {
 838             case ACTION_STD_CANCEL:
 839                 exit = true;
 840                 break;
 841
 842             case ACTION_STD_OK:
 843                 playlist_start(
 844                     found_indicies[gui_synclist_get_sel_pos(&playlist_lists)]
 845                     ,0);
 846                 exit = 1;
 847             break;
 848
 849             default:
 850                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 851                 {
 852                     ret = true;
 853                     exit = true;
 854                 }
 855                 break;
 856         }
 857     }
 858     return ret;
 859 }
 860