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,
 250                                          int track_index)
 251 {
 252     if(pb->num_loaded==viewer.num_tracks)
 253         return(false);
 254     int selected_index=playlist_buffer_get_index(pb, track_index);
 255     int first_buffer_index=playlist_buffer_get_index(pb, pb->first_index);
 256     int distance_beginning=distance(selected_index, first_buffer_index);
 257     if(distance_beginning<MIN_BUFFER_MARGIN)
 258         return(true);
 259
 260     if(pb->num_loaded - distance_beginning < MIN_BUFFER_MARGIN)
 261        return(true);
 262     return(false);
 263 }
 264
 265 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 266                                                          int index)
 267 {
 268     int buffer_index=playlist_buffer_get_index(pb, index);
 269     return(&(pb->tracks[buffer_index]));
 270 }
 271
 272 /* Initialize the playlist viewer. */
 273 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 274                                  char* filename, bool reload)
 275 {
 276     char* buffer;
 277     size_t buffer_size;
 278     bool is_playing = audio_status() & (AUDIO_STATUS_PLAY | AUDIO_STATUS_PAUSE);
 279     bool have_list = filename || is_playing;
 280     if (!have_list && (global_status.resume_index != -1))
 281     {
 282         /* Try to restore the list from control file */
 283         have_list = (playlist_resume() != -1);
 284     }
 285     if (!have_list && (playlist_amount() > 0))
 286     {
 287          /*If dynamic playlist still exists, view it anyway even
 288         if playback has reached the end of the playlist */
 289         have_list = true;
 290     }
 291     if (!have_list)
 292     {
 293         /* Nothing to view, exit */
 294         gui_syncsplash(HZ, str(LANG_CATALOG_NO_PLAYLISTS));
 295         return false;
 296     }
 297
 298     buffer = plugin_get_buffer(&buffer_size);
 299     if (!buffer)
 300         return false;
 301
 302     if (!filename)
 303         viewer->playlist = NULL;
 304     else
 305     {
 306         /* Viewing playlist on disk */
 307         char *dir, *file, *temp_ptr;
 308         char *index_buffer = NULL;
 309         ssize_t index_buffer_size = 0;
 310
 311         viewer->playlist = &temp_playlist;
 312
 313         /* Separate directory from filename */
 314         temp_ptr = strrchr(filename+1,'/');
 315         if (temp_ptr)
 316         {
 317             *temp_ptr = 0;
 318             dir = filename;
 319             file = temp_ptr + 1;
 320         }
 321         else
 322         {
 323             dir = "/";
 324             file = filename+1;
 325         }
 326
 327         if (is_playing)
 328         {
 329             /* Something is playing, use half the plugin buffer for playlist
 330                indices */
 331             index_buffer_size = buffer_size / 2;
 332             index_buffer = buffer;
 333         }
 334
 335         playlist_create_ex(viewer->playlist, dir, file, index_buffer,
 336             index_buffer_size, buffer+index_buffer_size,
 337             buffer_size-index_buffer_size);
 338
 339         if (temp_ptr)
 340             *temp_ptr = '/';
 341
 342         buffer += index_buffer_size;
 343         buffer_size -= index_buffer_size;
 344     }
 345     playlist_buffer_init(&viewer->buffer, buffer, buffer_size );
 346
 347     viewer->move_track = -1;
 348
 349     if (!reload)
 350     {
 351         if (viewer->playlist)
 352             viewer->selected_track = 0;
 353         else
 354             viewer->selected_track = playlist_get_display_index() - 1;
 355     }
 356
 357     if (!update_playlist(true))
 358         return false;
 359     return true;
 360 }
 361
 362 /* Format trackname for display purposes */
 363 static void format_name(char* dest, const char* src)
 364 {
 365     switch (global_settings.playlist_viewer_track_display)
 366     {
 367         case 0:
 368         default:
 369         {
 370             /* Only display the filename */
 371             char* p = strrchr(src, '/');
 372
 373             strcpy(dest, p+1);
 374
 375             /* Remove the extension */
 376             strrsplt(dest, '.');
 377
 378             break;
 379         }
 380         case 1:
 381             /* Full path */
 382             strcpy(dest, src);
 383             break;
 384     }
 385 }
 386
 387 /* Format display line */
 388 static void format_line(const struct playlist_entry* track, char* str,
 389                         int len)
 390 {
 391     char name[MAX_PATH];
 392     char *skipped = "";
 393
 394     format_name(name, track->name);
 395
 396     if (track->skipped)
 397         skipped = "(ERR) ";
 398
 399     if (global_settings.playlist_viewer_indices)
 400         /* Display playlist index */
 401         snprintf(str, len, "%d. %s%s", track->display_index, skipped, name);
 402     else
 403         snprintf(str, len, "%s%s", skipped, name);
 404
 405 }
 406
 407 /* Update playlist in case something has changed or forced */
 408 static bool update_playlist(bool force)
 409 {
 410     if (!viewer.playlist)
 411         playlist_get_resume_info(&viewer.current_playing_track);
 412     else
 413         viewer.current_playing_track = -1;
 414     int nb_tracks=playlist_amount_ex(viewer.playlist);
 415     force=force || nb_tracks != viewer.num_tracks;
 416     if (force)
 417     {
 418         /* Reload tracks */
 419         viewer.num_tracks = nb_tracks;
 420         if (viewer.num_tracks <= 0)
 421             return false;
 422         playlist_buffer_load_entries_screen(&viewer.buffer, FORWARD);
 423         if (viewer.buffer.num_loaded <= 0)
 424             return false;
 425     }
 426     return true;
 427 }
 428
 429 /* Menu of playlist commands.  Invoked via ON+PLAY on main viewer screen.
 430    Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
 431    changed. */
 432 static int onplay_menu(int index)
 433 {
 434     int result, ret = 0;
 435     struct playlist_entry * current_track=
 436         playlist_buffer_get_track(&viewer.buffer, index);
 437     MENUITEM_STRINGLIST(menu_items, ID2P(LANG_PLAYLIST), NULL,
 438                         ID2P(LANG_REMOVE), ID2P(LANG_MOVE),
 439                         ID2P(LANG_CATALOG_ADD_TO), ID2P(LANG_CATALOG_ADD_TO_NEW));
 440     bool current = (current_track->index == viewer.current_playing_track);
 441
 442     result = do_menu(&menu_items, NULL, NULL, false);
 443     if (result == MENU_ATTACHED_USB)
 444     {
 445         ret = -1;
 446     }
 447     else if (result >= 0)
 448     {
 449         /* Abort current move */
 450         viewer.move_track = -1;
 451
 452         switch (result)
 453         {
 454             case 0:
 455                 /* delete track */
 456                 playlist_delete(viewer.playlist, current_track->index);
 457                 if (current)
 458                 {
 459                     if (playlist_amount_ex(viewer.playlist) <= 0)
 460                         audio_stop();
 461                     else
 462                     {
 463                        /* Start playing new track except if it's the lasttrack
 464                           track in the playlist and repeat mode is disabled */
 465                         current_track =
 466                             playlist_buffer_get_track(&viewer.buffer, index);
 467                         if (current_track->display_index!=viewer.num_tracks ||
 468                             global_settings.repeat_mode == REPEAT_ALL)
 469                         {
 470 #if CONFIG_CODEC != SWCODEC
 471                             talk_buffer_steal(); /* will use the mp3 buffer */
 472 #endif
 473                             audio_play(0);
 474                             viewer.current_playing_track = -1;
 475                         }
 476                     }
 477                 }
 478                 ret = 1;
 479                 break;
 480             case 1:
 481                 /* move track */
 482                 viewer.move_track = current_track->index;
 483                 ret = 0;
 484                 break;
 485             case 2: /* add to catalog */
 486             case 3: /* add to a new one */
 487                 catalog_add_to_a_playlist(current_track->name,
 488                                           FILE_ATTR_AUDIO,
 489                                           result==3, NULL);
 490                 ret = 0;
 491                 break;
 492         }
 493     }
 494     return ret;
 495 }
 496
 497 /* Menu of viewer options.  Invoked via F1(r) or Menu(p). */
 498 MENUITEM_SETTING(show_icons, &global_settings.playlist_viewer_icons, NULL);
 499 MENUITEM_SETTING(show_indices, &global_settings.playlist_viewer_indices, NULL);
 500 MENUITEM_SETTING(track_display,
 501                  &global_settings.playlist_viewer_track_display, NULL);
 502 MENUITEM_FUNCTION(save_playlist_item, 0, ID2P(LANG_SAVE_DYNAMIC_PLAYLIST),
 503                   save_playlist_func, 0, NULL, Icon_NOICON);
 504 MAKE_MENU(viewer_settings_menu, ID2P(LANG_PLAYLISTVIEWER_SETTINGS),
 505           NULL, Icon_Playlist,
 506           &show_icons, &show_indices, &track_display, &save_playlist_item);
 507 static bool viewer_menu(void)
 508 {
 509     return do_menu(&viewer_settings_menu, NULL, NULL, false) == MENU_ATTACHED_USB;
 510 }
 511
 512 /* Save playlist to disk */
 513 static int save_playlist_func(void)
 514 {
 515     save_playlist_screen(viewer.playlist);
 516     return 0;
 517 }
 518
 519 /* View current playlist */
 520 bool playlist_viewer(void)
 521 {
 522     return playlist_viewer_ex(NULL);
 523 }
 524
 525 static int get_track_num( struct playlist_viewer * local_viewer,
 526                           int selected_item )
 527 {
 528     if( local_viewer->move_track >= 0 )
 529     {
 530         if( local_viewer->selected_track == selected_item )
 531         {
 532             return local_viewer->move_track;
 533         }
 534         else if( local_viewer->selected_track > selected_item
 535               && selected_item >= local_viewer->move_track )
 536         {
 537             return selected_item+1;
 538         }
 539         else if( local_viewer->selected_track < selected_item
 540               && selected_item <= local_viewer->move_track )
 541         {
 542             return selected_item-1;
 543         }
 544     }
 545     return selected_item;
 546 }
 547
 548 static char *playlist_callback_name(int selected_item,
 549                                     void *data,
 550                                     char *buffer,
 551                                     size_t buffer_len)
 552 {
 553     struct playlist_viewer * local_viewer = (struct playlist_viewer *)data;
 554
 555     int track_num = get_track_num(local_viewer, selected_item);
 556     struct playlist_entry *track =
 557        playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 558
 559     format_line(track, buffer, buffer_len);
 560
 561     return(buffer);
 562 }
 563
 564
 565 static int playlist_callback_icons(int selected_item, void *data)
 566 {
 567     struct playlist_viewer * local_viewer=(struct playlist_viewer *)data;
 568
 569     int track_num = get_track_num(local_viewer, selected_item);
 570     struct playlist_entry *track=
 571         playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 572
 573     if (track->index == local_viewer->current_playing_track)
 574     {
 575         /* Current playing track */
 576         return Icon_Audio;
 577     }
 578     else if (track->index == local_viewer->move_track)
 579     {
 580         /* Track we are moving */
 581         return Icon_Moving;
 582     }
 583     else if (track->queued)
 584     {
 585         /* Queued track */
 586         return Icon_Queued;
 587     }
 588     else
 589         return Icon_NOICON;
 590 }
 591
 592 /* Main viewer function.  Filename identifies playlist to be viewed.  If NULL,
 593    view current playlist. */
 594 bool playlist_viewer_ex(char* filename)
 595 {
 596     bool ret = false;       /* return value */
 597     bool exit=false;        /* exit viewer */
 598     int button;
 599     struct gui_synclist playlist_lists;
 600     if (!playlist_viewer_init(&viewer, filename, false))
 601         goto exit;
 602
 603     gui_synclist_init(&playlist_lists, playlist_callback_name,
 604                       &viewer, false, 1, NULL);
 605     gui_synclist_set_icon_callback(&playlist_lists,
 606                   global_settings.playlist_viewer_icons?
 607                   &playlist_callback_icons:NULL);
 608     gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 609     gui_synclist_select_item(&playlist_lists, viewer.selected_track);
 610     gui_synclist_set_title(&playlist_lists, str(LANG_PLAYLIST), Icon_Playlist);
 611     gui_synclist_draw(&playlist_lists);
 612     while (!exit)
 613     {
 614         int track;
 615
 616         if (global_status.resume_index != -1 && !viewer.playlist)
 617             playlist_get_resume_info(&track);
 618         else
 619             track = -1;
 620
 621         if (track != viewer.current_playing_track ||
 622             playlist_amount_ex(viewer.playlist) != viewer.num_tracks)
 623         {
 624             /* Playlist has changed (new track started?) */
 625             if (!update_playlist(false))
 626                 goto exit;
 627             /*Needed because update_playlist gives wrong value when
 628                                                             playing is stopped*/
 629             viewer.current_playing_track = track;
 630             gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 631             /* Abort move on playlist change */
 632             viewer.move_track = -1;
 633             gui_synclist_draw(&playlist_lists);
 634         }
 635
 636         /* Timeout so we can determine if play status has changed */
 637         button = get_action(CONTEXT_TREE,HZ/2);
 638         if( (gui_synclist_do_button(&playlist_lists, &button,LIST_WRAP_UNLESS_HELD)) )
 639         {
 640             viewer.selected_track=gui_synclist_get_sel_pos(&playlist_lists);
 641             if(playlist_buffer_needs_reload(&viewer.buffer,
 642                 viewer.selected_track))
 643                 playlist_buffer_load_entries_screen(&viewer.buffer,
 644                     button==ACTION_STD_NEXT?
 645                         FORWARD
 646                         :
 647                         BACKWARD
 648                     );
 649             gui_synclist_draw(&playlist_lists);
 650         }
 651         switch (button)
 652         {
 653             case ACTION_TREE_WPS:
 654             case ACTION_STD_CANCEL:
 655             {
 656                 if (viewer.move_track >= 0)
 657                 {
 658                     viewer.selected_track = viewer.move_track;
 659                     gui_synclist_select_item(&playlist_lists, viewer.move_track);
 660                     viewer.move_track = -1;
 661                     gui_synclist_draw(&playlist_lists);
 662                 }
 663                 else
 664                     exit = true;
 665                 break;
 666             }
 667             case ACTION_STD_OK:
 668             {
 669                 struct playlist_entry * current_track =
 670                     playlist_buffer_get_track(&viewer.buffer,
 671                     viewer.selected_track);
 672                 if (viewer.move_track >= 0)
 673                 {
 674                     /* Move track */
 675                     int ret_val;
 676
 677                     ret_val = playlist_move(viewer.playlist, viewer.move_track,
 678                         current_track->index);
 679                     if (ret_val < 0)
 680                          gui_syncsplash(HZ, (unsigned char *)"%s %s",
 681                              str(LANG_MOVE), str(LANG_FAILED));
 682                     update_playlist(true);
 683                     viewer.move_track = -1;
 684                 }
 685                 else if (!viewer.playlist)
 686                 {
 687                     /* play new track */
 688                     playlist_start(current_track->index, 0);
 689                     update_playlist(false);
 690                 }
 691                 else
 692                 {
 693                     /* New playlist */
 694                     if (playlist_set_current(viewer.playlist) < 0)
 695                         goto exit;
 696
 697                     playlist_start(current_track->index, 0);
 698
 699                     /* Our playlist is now the current list */
 700                     if (!playlist_viewer_init(&viewer, NULL, true))
 701                         goto exit;
 702                 }
 703                 gui_synclist_draw(&playlist_lists);
 704
 705                 break;
 706             }
 707             case ACTION_STD_CONTEXT:
 708             {
 709                 /* ON+PLAY menu */
 710                 int ret_val;
 711
 712                 ret_val = onplay_menu(viewer.selected_track);
 713
 714                 if (ret_val < 0)
 715                 {
 716                     ret = true;
 717                     goto exit;
 718                 }
 719                 else if (ret > 0)
 720                 {
 721                     /* Playlist changed */
 722                     gui_synclist_del_item(&playlist_lists);
 723                     update_playlist(true);
 724                     if (viewer.num_tracks <= 0)
 725                         exit = true;
 726                     if(viewer.selected_track >= viewer.num_tracks)
 727                         viewer.selected_track = viewer.num_tracks-1;
 728                 }
 729                 gui_synclist_draw(&playlist_lists);
 730                 break;
 731             }
 732             case ACTION_STD_MENU:
 733                 if (viewer_menu())
 734                 {
 735                     ret = true;
 736                     goto exit;
 737                 }
 738                 gui_synclist_set_icon_callback(
 739                     &playlist_lists,
 740                     global_settings.playlist_viewer_icons?
 741                         &playlist_callback_icons:NULL
 742                     );
 743                 gui_synclist_draw(&playlist_lists);
 744                 break;
 745
 746             case ACTION_NONE:
 747                 gui_syncstatusbar_draw(&statusbars, false);
 748                 break;
 749
 750             default:
 751                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 752                 {
 753                     ret = true;
 754                     goto exit;
 755                 }
 756                 break;
 757         }
 758     }
 759
 760 exit:
 761     if (viewer.playlist)
 762         playlist_close(viewer.playlist);
 763     return ret;
 764 }
 765
 766 static char *playlist_search_callback_name(int selected_item, void * data,
 767                                            char *buffer, size_t buffer_len)
 768 {
 769     (void)buffer_len; /* this should probably be used */
 770     int *found_indicies = (int*)data;
 771     static struct playlist_track_info track;
 772     playlist_get_track_info(viewer.playlist, found_indicies[selected_item], &track);
 773     format_name(buffer, track.filename);
 774     return(buffer);
 775 }
 776
 777 bool search_playlist(void)
 778 {
 779     char search_str[32] = "";
 780     bool ret = false, exit = false;
 781     int i, playlist_count;
 782     int found_indicies[MAX_PLAYLIST_ENTRIES],found_indicies_count = 0;
 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     for (i=0;(i<playlist_count)&&(found_indicies_count<MAX_PLAYLIST_ENTRIES);i++)
 794     {
 795         gui_syncsplash(0, str(LANG_PLAYLIST_SEARCH_MSG),found_indicies_count,
 796                    str(LANG_OFF_ABORT));
 797         if (action_userabort(TIMEOUT_NOBLOCK))
 798         {
 799             if (!found_indicies_count)
 800                 return ret;
 801             break;
 802         }
 803         playlist_get_track_info(viewer.playlist,i,&track);
 804         if (strcasestr(track.filename,search_str))
 805         {
 806             found_indicies[found_indicies_count++] = track.index;
 807         }
 808     }
 809     if (!found_indicies_count)
 810     {
 811         return ret;
 812     }
 813     backlight_on();
 814     gui_synclist_init(&playlist_lists, playlist_search_callback_name,
 815                       found_indicies, false, 1, NULL);
 816     gui_synclist_set_icon_callback(&playlist_lists, NULL);
 817     gui_synclist_set_nb_items(&playlist_lists, found_indicies_count);
 818     gui_synclist_select_item(&playlist_lists, 0);
 819     gui_synclist_draw(&playlist_lists);
 820     while (!exit)
 821     {
 822         button = get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
 823         if (gui_synclist_do_button(&playlist_lists, &button, LIST_WRAP_UNLESS_HELD))
 824             continue;
 825         switch (button)
 826         {
 827             case ACTION_STD_CANCEL:
 828                 exit = true;
 829                 break;
 830
 831             case ACTION_STD_OK:
 832                 playlist_start(
 833                     found_indicies[gui_synclist_get_sel_pos(&playlist_lists)]
 834                     ,0);
 835                 exit = 1;
 836             break;
 837             case ACTION_NONE:
 838                 break;
 839             default:
 840                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 841                 {
 842                     ret = true;
 843                     exit = true;
 844                 }
 845                 break;
 846         }
 847     }
 848     return ret;
 849 }
 850