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 "playlist.h"
  28 #include "audio.h"
  29 #include "screens.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 "splash.h"
  50 #include "playlist_menu.h"
  51
  52 /* Maximum number of tracks we can have loaded at one time */
  53 #define MAX_PLAYLIST_ENTRIES 200
  54
  55 /* The number of items between the selected one and the end/start of
  56  * the buffer under which the buffer must reload */
  57 #define MIN_BUFFER_MARGIN (screens[0].getnblines()+1)
  58
  59 /* Information about a specific track */
  60 struct playlist_entry {
  61     char *name;                 /* Formatted track name                     */
  62     int index;                  /* Playlist index                           */
  63     int display_index;          /* Display index                            */
  64     bool queued;                /* Is track queued?                         */
  65     bool skipped;               /* Is track marked as bad?                  */
  66 };
  67
  68 enum direction
  69 {
  70     FORWARD,
  71     BACKWARD
  72 };
  73
  74 struct playlist_buffer
  75 {
  76     char *name_buffer;        /* Buffer used to store track names */
  77     int buffer_size;          /* Size of name buffer */
  78
  79     int first_index;          /* Real index of first track loaded inside
  80                                  the buffer */
  81
  82     enum direction direction; /* Direction of the buffer (if the buffer
  83                                  was loaded BACKWARD, the last track in
  84                                  the buffer has a real index < to the
  85                                  real index of the the first track)*/
  86
  87     struct playlist_entry tracks[MAX_PLAYLIST_ENTRIES];
  88     int num_loaded;           /* Number of track entries loaded in buffer */
  89 };
  90
  91 /* Global playlist viewer settings */
  92 struct playlist_viewer {
  93     struct playlist_info* playlist; /* playlist being viewed                 */
  94     int num_tracks;             /* Number of tracks in playlist              */
  95     int current_playing_track;  /* Index of current playing track            */
  96     int selected_track;         /* The selected track, relative (first is 0) */
  97     int moving_track;           /* The track to move, relative (first is 0)
  98                                    or -1 if nothing is currently being moved */
  99     int moving_playlist_index;  /* Playlist-relative index (as opposed to
 100                                    viewer-relative index) of moving track    */
 101     struct playlist_buffer buffer;
 102 };
 103
 104 static struct playlist_viewer  viewer;
 105
 106 /* Used when viewing playlists on disk */
 107 static struct playlist_info temp_playlist;
 108
 109 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 110                                  int names_buffer_size);
 111 static void playlist_buffer_load_entries(struct playlist_buffer * pb, int index,
 112                                          enum direction direction);
 113 static int playlist_entry_load(struct playlist_entry *entry, int index,
 114                                char* name_buffer, int remaining_size);
 115
 116 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 117                                                          int index);
 118
 119 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 120                                  const char* filename, bool reload);
 121
 122 static void format_name(char* dest, const char* src);
 123 static void format_line(const struct playlist_entry* track, char* str,
 124                         int len);
 125
 126 static bool update_playlist(bool force);
 127 static int  onplay_menu(int index);
 128 static bool viewer_menu(void);
 129 static int save_playlist_func(void);
 130
 131 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
 132                                  int names_buffer_size)
 133 {
 134     pb->name_buffer = names_buffer;
 135     pb->buffer_size = names_buffer_size;
 136     pb->first_index = 0;
 137     pb->num_loaded = 0;
 138 }
 139
 140 /*
 141  * Loads the entries following 'index' in the playlist buffer
 142  */
 143 static void playlist_buffer_load_entries(struct playlist_buffer *pb, int index,
 144                                          enum direction direction)
 145 {
 146     int num_entries = viewer.num_tracks;
 147     char* p = pb->name_buffer;
 148     int remaining = pb->buffer_size;
 149     int i;
 150
 151     pb->first_index = index;
 152     if (num_entries > MAX_PLAYLIST_ENTRIES)
 153         num_entries = MAX_PLAYLIST_ENTRIES;
 154
 155     for (i = 0; i < num_entries; i++)
 156     {
 157         int len = playlist_entry_load(&(pb->tracks[i]), index, p, remaining);
 158         if (len < 0)
 159         {
 160             /* Out of name buffer space */
 161             num_entries = i;
 162             break;
 163         }
 164
 165         p += len;
 166         remaining -= len;
 167
 168         if(direction == FORWARD)
 169             index++;
 170         else
 171             index--;
 172         index += viewer.num_tracks;
 173         index %= viewer.num_tracks;
 174     }
 175     pb->direction = direction;
 176     pb->num_loaded = i;
 177 }
 178
 179 static void playlist_buffer_load_entries_screen(struct playlist_buffer * pb,
 180                                                 enum direction direction)
 181 {
 182     if (direction == FORWARD)
 183     {
 184         int min_start = viewer.selected_track-2*screens[0].getnblines();
 185         while (min_start < 0)
 186             min_start += viewer.num_tracks;
 187         min_start %= viewer.num_tracks;
 188         playlist_buffer_load_entries(pb, min_start, FORWARD);
 189     }
 190     else
 191     {
 192         int max_start = viewer.selected_track+2*screens[0].getnblines();
 193         max_start %= viewer.num_tracks;
 194         playlist_buffer_load_entries(pb, max_start, BACKWARD);
 195     }
 196 }
 197
 198 static int playlist_entry_load(struct playlist_entry *entry, int index,
 199                                char* name_buffer, int remaining_size)
 200 {
 201     struct playlist_track_info info;
 202     int len;
 203
 204     /* Playlist viewer orders songs based on display index.  We need to
 205        convert to real playlist index to access track */
 206     index = (index + playlist_get_first_index(viewer.playlist)) %
 207         viewer.num_tracks;
 208     if (playlist_get_track_info(viewer.playlist, index, &info) < 0)
 209         return -1;
 210
 211     len = strlen(info.filename) + 1;
 212
 213     if (len <= remaining_size)
 214     {
 215         strcpy(name_buffer, info.filename);
 216
 217         entry->name = name_buffer;
 218         entry->index = info.index;
 219         entry->display_index = info.display_index;
 220         entry->queued = info.attr & PLAYLIST_ATTR_QUEUED;
 221         entry->skipped = info.attr & PLAYLIST_ATTR_SKIPPED;
 222         return len;
 223     }
 224     return -1;
 225 }
 226
 227 static int playlist_buffer_get_index(struct playlist_buffer *pb, int index)
 228 {
 229     int buffer_index;
 230     if (pb->direction == FORWARD)
 231     {
 232         if (index >= pb->first_index)
 233             buffer_index = index-pb->first_index;
 234         else /* rotation : track0 in buffer + requested track */
 235             buffer_index = viewer.num_tracks-pb->first_index+index;
 236     }
 237     else
 238     {
 239         if (index <= pb->first_index)
 240             buffer_index = pb->first_index-index;
 241         else /* rotation : track0 in buffer + dist from the last track
 242                 to the requested track (num_tracks-requested track) */
 243             buffer_index = pb->first_index+viewer.num_tracks-index;
 244     }
 245     return buffer_index;
 246 }
 247
 248 #define distance(a, b) \
 249     a>b? (a) - (b) : (b) - (a)
 250 static bool playlist_buffer_needs_reload(struct playlist_buffer* pb,
 251                                          int track_index)
 252 {
 253     if (pb->num_loaded == viewer.num_tracks)
 254         return false;
 255     int selected_index = playlist_buffer_get_index(pb, track_index);
 256     int first_buffer_index = playlist_buffer_get_index(pb, pb->first_index);
 257     int distance_beginning = distance(selected_index, first_buffer_index);
 258     if (distance_beginning < MIN_BUFFER_MARGIN)
 259         return true;
 260
 261     if (pb->num_loaded - distance_beginning < MIN_BUFFER_MARGIN)
 262        return true;
 263     return false;
 264 }
 265
 266 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
 267                                                          int index)
 268 {
 269     int buffer_index = playlist_buffer_get_index(pb, index);
 270     return &(pb->tracks[buffer_index]);
 271 }
 272
 273 /* Initialize the playlist viewer. */
 274 static bool playlist_viewer_init(struct playlist_viewer * viewer,
 275                                  const char* filename, bool reload)
 276 {
 277     char* buffer;
 278     size_t buffer_size;
 279     bool is_playing = audio_status() & (AUDIO_STATUS_PLAY | AUDIO_STATUS_PAUSE);
 280     bool have_list = filename || is_playing;
 281     if (!have_list && (global_status.resume_index != -1))
 282     {
 283         /* Try to restore the list from control file */
 284         have_list = (playlist_resume() != -1);
 285     }
 286     if (!have_list && (playlist_amount() > 0))
 287     {
 288          /*If dynamic playlist still exists, view it anyway even
 289         if playback has reached the end of the playlist */
 290         have_list = true;
 291     }
 292     if (!have_list)
 293     {
 294         /* Nothing to view, exit */
 295         splash(HZ, str(LANG_CATALOG_NO_PLAYLISTS));
 296         return false;
 297     }
 298
 299     buffer = plugin_get_buffer(&buffer_size);
 300     if (!buffer)
 301         return false;
 302
 303     if (!filename)
 304         viewer->playlist = NULL;
 305     else
 306     {
 307         /* Viewing playlist on disk */
 308         const char *dir, *file;
 309         char *temp_ptr;
 310         char *index_buffer = NULL;
 311         ssize_t index_buffer_size = 0;
 312
 313         viewer->playlist = &temp_playlist;
 314
 315         /* Separate directory from filename */
 316         temp_ptr = strrchr(filename+1,'/');
 317         if (temp_ptr)
 318         {
 319             *temp_ptr = 0;
 320             dir = filename;
 321             file = temp_ptr + 1;
 322         }
 323         else
 324         {
 325             dir = "/";
 326             file = filename+1;
 327         }
 328
 329         if (is_playing)
 330         {
 331             /* Something is playing, use half the plugin buffer for playlist
 332                indices */
 333             index_buffer_size = buffer_size / 2;
 334             index_buffer = buffer;
 335         }
 336
 337         playlist_create_ex(viewer->playlist, dir, file, index_buffer,
 338             index_buffer_size, buffer+index_buffer_size,
 339             buffer_size-index_buffer_size);
 340
 341         if (temp_ptr)
 342             *temp_ptr = '/';
 343
 344         buffer += index_buffer_size;
 345         buffer_size -= index_buffer_size;
 346     }
 347     playlist_buffer_init(&viewer->buffer, buffer, buffer_size);
 348
 349     viewer->moving_track = -1;
 350     viewer->moving_playlist_index = -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         {
 425             global_status.resume_index = -1;
 426             global_status.resume_offset = -1;
 427             return false;
 428         }
 429         playlist_buffer_load_entries_screen(&viewer.buffer, FORWARD);
 430         if (viewer.buffer.num_loaded <= 0)
 431         {
 432             global_status.resume_index = -1;
 433             global_status.resume_offset = -1;
 434             return false;
 435         }
 436     }
 437     return true;
 438 }
 439
 440 /* Menu of playlist commands.  Invoked via ON+PLAY on main viewer screen.
 441    Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
 442    changed. */
 443 static int onplay_menu(int index)
 444 {
 445     int result, ret = 0;
 446     struct playlist_entry * current_track =
 447         playlist_buffer_get_track(&viewer.buffer, index);
 448     MENUITEM_STRINGLIST(menu_items, ID2P(LANG_PLAYLIST), NULL,
 449                         ID2P(LANG_REMOVE), ID2P(LANG_MOVE),
 450                         ID2P(LANG_CATALOG_ADD_TO), ID2P(LANG_CATALOG_ADD_TO_NEW),
 451                         ID2P(LANG_PLAYLISTVIEWER_SETTINGS));
 452     bool current = (current_track->index == viewer.current_playing_track);
 453
 454     result = do_menu(&menu_items, NULL, NULL, false);
 455     if (result == MENU_ATTACHED_USB)
 456     {
 457         ret = -1;
 458     }
 459     else if (result >= 0)
 460     {
 461         /* Abort current move */
 462         viewer.moving_track = -1;
 463         viewer.moving_playlist_index = -1;
 464
 465         switch (result)
 466         {
 467             case 0:
 468                 /* delete track */
 469                 playlist_delete(viewer.playlist, current_track->index);
 470                 if (current)
 471                 {
 472                     if (playlist_amount_ex(viewer.playlist) <= 0)
 473                         audio_stop();
 474                     else
 475                     {
 476                        /* Start playing new track except if it's the lasttrack
 477                           track in the playlist and repeat mode is disabled */
 478                         current_track =
 479                             playlist_buffer_get_track(&viewer.buffer, index);
 480                         if (current_track->display_index!=viewer.num_tracks ||
 481                             global_settings.repeat_mode == REPEAT_ALL)
 482                         {
 483 #if CONFIG_CODEC != SWCODEC
 484                             talk_buffer_steal(); /* will use the mp3 buffer */
 485 #endif
 486                             audio_play(0);
 487                             viewer.current_playing_track = -1;
 488                         }
 489                     }
 490                 }
 491                 ret = 1;
 492                 break;
 493             case 1:
 494                 /* move track */
 495                 viewer.moving_track = index;
 496                 viewer.moving_playlist_index = current_track->index;
 497                 ret = 0;
 498                 break;
 499             case 2: /* add to catalog */
 500             case 3: /* add to a new one */
 501                 catalog_add_to_a_playlist(current_track->name,
 502                                           FILE_ATTR_AUDIO,
 503                                           result == 3, NULL);
 504                 ret = 0;
 505                 break;
 506             case 4: /* playlist viewer settings */
 507                 /* true on usb connect */
 508                 ret = viewer_menu() ? -1 : 0;
 509                 break;
 510         }
 511     }
 512     return ret;
 513 }
 514
 515 /* Menu of viewer options.  Invoked via F1(r) or Menu(p). */
 516 MENUITEM_SETTING(show_icons, &global_settings.playlist_viewer_icons, NULL);
 517 MENUITEM_SETTING(show_indices, &global_settings.playlist_viewer_indices, NULL);
 518 MENUITEM_SETTING(track_display,
 519                  &global_settings.playlist_viewer_track_display, NULL);
 520 MENUITEM_FUNCTION(save_playlist_item, 0, ID2P(LANG_SAVE_DYNAMIC_PLAYLIST),
 521                   save_playlist_func, 0, NULL, Icon_NOICON);
 522 MAKE_MENU(viewer_settings_menu, ID2P(LANG_PLAYLISTVIEWER_SETTINGS),
 523           NULL, Icon_Playlist,
 524           &show_icons, &show_indices, &track_display, &save_playlist_item);
 525 static bool viewer_menu(void)
 526 {
 527     return do_menu(&viewer_settings_menu, NULL, NULL, false) == MENU_ATTACHED_USB;
 528 }
 529
 530 /* Save playlist to disk */
 531 static int save_playlist_func(void)
 532 {
 533     save_playlist_screen(viewer.playlist);
 534     return 0;
 535 }
 536
 537 /* View current playlist */
 538 enum playlist_viewer_result playlist_viewer(void)
 539 {
 540     return playlist_viewer_ex(NULL);
 541 }
 542
 543 static int get_track_num(struct playlist_viewer *local_viewer,
 544                          int selected_item)
 545 {
 546     if (local_viewer->moving_track >= 0)
 547     {
 548         if (local_viewer->selected_track == selected_item)
 549         {
 550             return local_viewer->moving_track;
 551         }
 552         else if (local_viewer->selected_track > selected_item
 553             && selected_item >= local_viewer->moving_track)
 554         {
 555             return selected_item+1; /* move down */
 556         }
 557         else if (local_viewer->selected_track < selected_item
 558             && selected_item <= local_viewer->moving_track)
 559         {
 560             return selected_item-1; /* move up */
 561         }
 562     }
 563     return selected_item;
 564 }
 565
 566 static const char* playlist_callback_name(int selected_item,
 567                                           void *data,
 568                                           char *buffer,
 569                                           size_t buffer_len)
 570 {
 571     struct playlist_viewer *local_viewer = (struct playlist_viewer *)data;
 572
 573     int track_num = get_track_num(local_viewer, selected_item);
 574     struct playlist_entry *track =
 575         playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 576
 577     format_line(track, buffer, buffer_len);
 578
 579     return(buffer);
 580 }
 581
 582
 583 static enum themable_icons playlist_callback_icons(int selected_item,
 584                                                    void *data)
 585 {
 586     struct playlist_viewer *local_viewer = (struct playlist_viewer *)data;
 587
 588     int track_num = get_track_num(local_viewer, selected_item);
 589     struct playlist_entry *track =
 590         playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 591
 592     if (track->index == local_viewer->current_playing_track)
 593     {
 594         /* Current playing track */
 595         return Icon_Audio;
 596     }
 597     else if (track->index == local_viewer->moving_playlist_index)
 598     {
 599         /* Track we are moving */
 600         return Icon_Moving;
 601     }
 602     else if (track->queued)
 603     {
 604         /* Queued track */
 605         return Icon_Queued;
 606     }
 607     else
 608         return Icon_NOICON;
 609 }
 610
 611 static int playlist_callback_voice(int selected_item, void *data)
 612 {
 613     struct playlist_viewer *local_viewer = (struct playlist_viewer *)data;
 614
 615     int track_num = get_track_num(local_viewer, selected_item);
 616     struct playlist_entry *track =
 617         playlist_buffer_get_track(&(local_viewer->buffer), track_num);
 618
 619     bool enqueue = false;
 620
 621     if (global_settings.talk_file_clip || global_settings.talk_file == 2)
 622     {
 623         if (global_settings.playlist_viewer_indices)
 624         {
 625             talk_number(track->display_index, false);
 626             enqueue = true;
 627         }
 628         talk_file_or_spell(NULL, track->name, NULL, enqueue);
 629     }
 630     else if (global_settings.talk_file == 1) /* as numbers */
 631     {
 632         talk_id(VOICE_FILE, false);
 633         talk_number(track->display_index, true);
 634     }
 635
 636     return 0;
 637 }
 638
 639 /* Main viewer function.  Filename identifies playlist to be viewed.  If NULL,
 640    view current playlist. */
 641 enum playlist_viewer_result playlist_viewer_ex(const char* filename)
 642 {
 643     enum playlist_viewer_result ret = PLAYLIST_VIEWER_OK;
 644     bool exit = false;        /* exit viewer */
 645     int button;
 646     struct gui_synclist playlist_lists;
 647     if (!playlist_viewer_init(&viewer, filename, false))
 648         goto exit;
 649
 650     gui_synclist_init(&playlist_lists, playlist_callback_name,
 651                       &viewer, false, 1, NULL);
 652     gui_synclist_set_voice_callback(&playlist_lists, playlist_callback_voice);
 653     gui_synclist_set_icon_callback(&playlist_lists,
 654                   global_settings.playlist_viewer_icons?
 655                   &playlist_callback_icons:NULL);
 656     gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 657     gui_synclist_set_title(&playlist_lists, str(LANG_PLAYLIST), Icon_Playlist);
 658     gui_synclist_select_item(&playlist_lists, viewer.selected_track);
 659     gui_synclist_draw(&playlist_lists);
 660     gui_synclist_speak_item(&playlist_lists);
 661     while (!exit)
 662     {
 663         int track;
 664
 665         if (global_status.resume_index != -1 && !viewer.playlist)
 666             playlist_get_resume_info(&track);
 667         else
 668             track = -1;
 669
 670         if (track != viewer.current_playing_track ||
 671             playlist_amount_ex(viewer.playlist) != viewer.num_tracks)
 672         {
 673             /* Playlist has changed (new track started?) */
 674             if (!update_playlist(false))
 675                 goto exit;
 676             /*Needed because update_playlist gives wrong value when
 677                                                             playing is stopped*/
 678             viewer.current_playing_track = track;
 679             gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
 680
 681             gui_synclist_draw(&playlist_lists);
 682         }
 683
 684         /* Timeout so we can determine if play status has changed */
 685         bool res = list_do_action(CONTEXT_TREE, HZ/2,
 686                             &playlist_lists, &button, LIST_WRAP_UNLESS_HELD);
 687         /* during moving, another redraw is going to be needed,
 688          * since viewer.selected_track is updated too late (after the first draw)
 689          * drawing the moving item needs it */
 690         viewer.selected_track=gui_synclist_get_sel_pos(&playlist_lists);
 691         if (res)
 692         {
 693             bool reload = playlist_buffer_needs_reload(&viewer.buffer,
 694                     viewer.selected_track);
 695             if (reload)
 696                 playlist_buffer_load_entries_screen(&viewer.buffer,
 697                     button == ACTION_STD_NEXT ? FORWARD : BACKWARD);
 698             if (reload || viewer.moving_track >= 0)
 699                 gui_synclist_draw(&playlist_lists);
 700         }
 701         switch (button)
 702         {
 703             case ACTION_TREE_WPS:
 704             case ACTION_STD_CANCEL:
 705             {
 706                 if (viewer.moving_track >= 0)
 707                 {
 708                     viewer.selected_track = viewer.moving_track;
 709                     gui_synclist_select_item(&playlist_lists, viewer.moving_track);
 710                     viewer.moving_track = -1;
 711                     viewer.moving_playlist_index = -1;
 712                     gui_synclist_draw(&playlist_lists);
 713                 }
 714                 else
 715                     exit = true;
 716                 break;
 717             }
 718             case ACTION_STD_OK:
 719             {
 720                 struct playlist_entry * current_track =
 721                             playlist_buffer_get_track(&viewer.buffer,
 722                                                       viewer.selected_track);
 723
 724                 if (viewer.moving_track >= 0)
 725                 {
 726                     /* Move track */
 727                     int ret_val;
 728
 729                     ret_val = playlist_move(viewer.playlist,
 730                                             viewer.moving_playlist_index,
 731                                             current_track->index);
 732                     if (ret_val < 0)
 733                          splashf(HZ, (unsigned char *)"%s %s", str(LANG_MOVE),
 734                                                                str(LANG_FAILED));
 735                     update_playlist(true);
 736                     viewer.moving_track = -1;
 737                     viewer.moving_playlist_index = -1;
 738                 }
 739                 else if (!viewer.playlist)
 740                 {
 741                     /* play new track */
 742                     playlist_start(current_track->index, 0);
 743                     update_playlist(false);
 744                 }
 745                 else
 746                 {
 747                     /* New playlist */
 748                     if (playlist_set_current(viewer.playlist) < 0)
 749                         goto exit;
 750
 751                     playlist_start(current_track->index, 0);
 752
 753                     /* Our playlist is now the current list */
 754                     if (!playlist_viewer_init(&viewer, NULL, true))
 755                         goto exit;
 756                 }
 757                 gui_synclist_draw(&playlist_lists);
 758
 759                 break;
 760             }
 761             case ACTION_STD_CONTEXT:
 762             {
 763                 /* ON+PLAY menu */
 764                 int ret_val;
 765
 766                 ret_val = onplay_menu(viewer.selected_track);
 767
 768                 if (ret_val < 0)
 769                 {
 770                     ret = PLAYLIST_VIEWER_USB;
 771                     goto exit;
 772                 }
 773                 else if (ret_val > 0)
 774                 {
 775                     /* Playlist changed */
 776                     gui_synclist_del_item(&playlist_lists);
 777                     update_playlist(true);
 778                     if (viewer.num_tracks <= 0)
 779                         exit = true;
 780                     if (viewer.selected_track >= viewer.num_tracks)
 781                         viewer.selected_track = viewer.num_tracks-1;
 782                 }
 783                 gui_synclist_draw(&playlist_lists);
 784                 break;
 785             }
 786             case ACTION_STD_MENU:
 787                 ret = PLAYLIST_VIEWER_MAINMENU;
 788                 goto exit;
 789             default:
 790                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 791                 {
 792                     ret = PLAYLIST_VIEWER_USB;
 793                     goto exit;
 794                 }
 795                 break;
 796         }
 797     }
 798
 799 exit:
 800     if (viewer.playlist)
 801         playlist_close(viewer.playlist);
 802     return ret;
 803 }
 804
 805 static const char* playlist_search_callback_name(int selected_item, void * data,
 806                                                  char *buffer, size_t buffer_len)
 807 {
 808     (void)buffer_len; /* this should probably be used */
 809     int *found_indicies = (int*)data;
 810     static struct playlist_track_info track;
 811     playlist_get_track_info(viewer.playlist, found_indicies[selected_item], &track);
 812     format_name(buffer, track.filename);
 813     return buffer;
 814 }
 815
 816 bool search_playlist(void)
 817 {
 818     char search_str[32] = "";
 819     bool ret = false, exit = false;
 820     int i, playlist_count;
 821     int found_indicies[MAX_PLAYLIST_ENTRIES];
 822     int found_indicies_count = 0, last_found_count = -1;
 823     int button;
 824     struct gui_synclist playlist_lists;
 825     struct playlist_track_info track;
 826
 827     if (!playlist_viewer_init(&viewer, 0, false))
 828         return ret;
 829     if (kbd_input(search_str, sizeof(search_str)) < 0)
 830         return ret;
 831     lcd_clear_display();
 832     playlist_count = playlist_amount_ex(viewer.playlist);
 833
 834     cpu_boost(true);
 835
 836     for (i = 0; i < playlist_count &&
 837         found_indicies_count < MAX_PLAYLIST_ENTRIES; i++)
 838     {
 839         if (found_indicies_count != last_found_count)
 840         {
 841             splashf(0, str(LANG_PLAYLIST_SEARCH_MSG), found_indicies_count,
 842                        str(LANG_OFF_ABORT));
 843             last_found_count = found_indicies_count;
 844         }
 845
 846         if (action_userabort(TIMEOUT_NOBLOCK))
 847             break;
 848
 849         playlist_get_track_info(viewer.playlist, i, &track);
 850
 851         if (strcasestr(track.filename,search_str))
 852             found_indicies[found_indicies_count++] = track.index;
 853
 854         yield();
 855     }
 856
 857     cpu_boost(false);
 858
 859     if (!found_indicies_count)
 860     {
 861         return ret;
 862     }
 863     backlight_on();
 864
 865     gui_synclist_init(&playlist_lists, playlist_search_callback_name,
 866                       found_indicies, false, 1, NULL);
 867     gui_synclist_set_title(&playlist_lists, str(LANG_SEARCH_RESULTS), NOICON);
 868     gui_synclist_set_icon_callback(&playlist_lists, NULL);
 869     gui_synclist_set_nb_items(&playlist_lists, found_indicies_count);
 870     gui_synclist_select_item(&playlist_lists, 0);
 871     gui_synclist_draw(&playlist_lists);
 872     while (!exit)
 873     {
 874         if (list_do_action(CONTEXT_LIST, HZ/4,
 875                            &playlist_lists, &button, LIST_WRAP_UNLESS_HELD))
 876             continue;
 877         switch (button)
 878         {
 879             case ACTION_STD_CANCEL:
 880                 exit = true;
 881                 break;
 882
 883             case ACTION_STD_OK:
 884             {
 885                 int sel = gui_synclist_get_sel_pos(&playlist_lists);
 886                 playlist_start(found_indicies[sel], 0);
 887                 exit = 1;
 888             }
 889                 break;
 890
 891             default:
 892                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 893                 {
 894                     ret = true;
 895                     exit = true;
 896                 }
 897                 break;
 898         }
 899     }
 900     return ret;
 901 }
 902