apps/playlist_catalog.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Sebastian Henriksen, Hardeep Sidhu
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include <stdbool.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include "string-extra.h"
  26 #include "action.h"
  27 #include "dir.h"
  28 #include "file.h"
  29 #include "filetree.h"
  30 #include "kernel.h"
  31 #include "keyboard.h"
  32 #include "lang.h"
  33 #include "list.h"
  34 #include "misc.h"
  35 #include "filefuncs.h"
  36 #include "onplay.h"
  37 #include "playlist.h"
  38 #include "settings.h"
  39 #include "splash.h"
  40 #include "tree.h"
  41 #include "yesno.h"
  42 #include "filetypes.h"
  43 #include "debug.h"
  44 #include "playlist_catalog.h"
  45 #include "talk.h"
  46
  47 #define MAX_PLAYLISTS 400
  48
  49 /* Use for recursive directory search */
  50 struct add_track_context {
  51     int fd;
  52     int count;
  53 };
  54
  55 /* keep track of most recently used playlist */
  56 static char most_recent_playlist[MAX_PATH];
  57
  58 /* directory where our playlists our stored */
  59 static char playlist_dir[MAX_PATH];
  60 static int  playlist_dir_length;
  61 static bool playlist_dir_exists = false;
  62
  63 /* Retrieve playlist directory from config file and verify it exists */
  64 static int initialize_catalog(void)
  65 {
  66     static bool initialized = false;
  67
  68     if (!initialized)
  69     {
  70         bool default_dir = true;
  71
  72         /* directory config is of the format: "dir: /path/to/dir" */
  73         if (global_settings.playlist_catalog_dir[0] &&
  74             strcmp(global_settings.playlist_catalog_dir,
  75                    PLAYLIST_CATALOG_DEFAULT_DIR))
  76         {
  77             strcpy(playlist_dir, global_settings.playlist_catalog_dir);
  78             default_dir = false;
  79         }
  80
  81         /* fall back to default directory if no or invalid config */
  82         if (default_dir)
  83         {
  84             strcpy(playlist_dir, PLAYLIST_CATALOG_DEFAULT_DIR);
  85             if (!dir_exists(playlist_dir))
  86                 mkdir(playlist_dir);
  87         }
  88
  89         playlist_dir_length = strlen(playlist_dir);
  90
  91         if (dir_exists(playlist_dir))
  92         {
  93             playlist_dir_exists = true;
  94             memset(most_recent_playlist, 0, sizeof(most_recent_playlist));
  95             initialized = true;
  96         }
  97     }
  98
  99     if (!playlist_dir_exists)
 100     {
 101         if (mkdir(playlist_dir) < 0) {
 102             splashf(HZ*2, ID2P(LANG_CATALOG_NO_DIRECTORY), playlist_dir);
 103             return -1;
 104         }
 105         else {
 106             playlist_dir_exists = true;
 107             memset(most_recent_playlist, 0, sizeof(most_recent_playlist));
 108             initialized = true;
 109         }
 110     }
 111
 112     return 0;
 113 }
 114 /* Use the filetree functions to retrieve the list of playlists in the
 115    directory */
 116 static int create_playlist_list(char** playlists, int num_items,
 117                                 int* num_playlists)
 118 {
 119     int result = -1;
 120     int num_files = 0;
 121     int index = 0;
 122     int i;
 123     bool most_recent = false;
 124     struct entry *files;
 125     struct tree_context* tc = tree_get_context();
 126     int dirfilter = *(tc->dirfilter);
 127
 128     *num_playlists = 0;
 129
 130     /* use the tree browser dircache to load only playlists */
 131     *(tc->dirfilter) = SHOW_PLAYLIST;
 132
 133     if (ft_load(tc, playlist_dir) < 0)
 134     {
 135         splashf(HZ*2, ID2P(LANG_CATALOG_NO_DIRECTORY), playlist_dir);
 136         goto exit;
 137     }
 138
 139     files = (struct entry*) tc->dircache;
 140     num_files = tc->filesindir;
 141
 142     /* we've overwritten the dircache so tree browser will need to be
 143        reloaded */
 144     reload_directory();
 145
 146     /* if it exists, most recent playlist will always be index 0 */
 147     if (most_recent_playlist[0] != '\0')
 148     {
 149         index = 1;
 150         most_recent = true;
 151     }
 152
 153     for (i=0; i<num_files && index<num_items; i++)
 154     {
 155         if (files[i].attr & FILE_ATTR_M3U)
 156         {
 157             if (most_recent && !strncmp(files[i].name, most_recent_playlist,
 158                 sizeof(most_recent_playlist)))
 159             {
 160                 playlists[0] = files[i].name;
 161                 most_recent = false;
 162             }
 163             else
 164             {
 165                 playlists[index] = files[i].name;
 166                 index++;
 167             }
 168         }
 169     }
 170
 171     *num_playlists = index;
 172
 173     /* we couldn't find the most recent playlist, shift all playlists up */
 174     if (most_recent)
 175     {
 176         for (i=0; i<index-1; i++)
 177             playlists[i] = playlists[i+1];
 178
 179         (*num_playlists)--;
 180
 181         most_recent_playlist[0] = '\0';
 182     }
 183
 184     result = 0;
 185
 186 exit:
 187     *(tc->dirfilter) = dirfilter;
 188     return result;
 189 }
 190
 191 /* Callback for gui_synclist */
 192 static const char* playlist_callback_name(int selected_item, void* data,
 193                                           char* buffer, size_t buffer_len)
 194 {
 195     char** playlists = (char**) data;
 196
 197     strlcpy(buffer, playlists[selected_item], buffer_len);
 198
 199     if (buffer[0] != '.' && !(global_settings.show_filename_ext == 1
 200         || (global_settings.show_filename_ext == 3
 201             && global_settings.dirfilter == 0)))
 202     {
 203         char* dot = strrchr(buffer, '.');
 204
 205         if (dot != NULL)
 206         {
 207             *dot = '\0';
 208         }
 209     }
 210
 211     return buffer;
 212 }
 213
 214 static int playlist_callback_voice(int selected_item, void* data)
 215 {
 216     char** playlists = (char**) data;
 217     talk_file_or_spell(playlist_dir, playlists[selected_item], NULL, false);
 218     return 0;
 219 }
 220
 221 /* Display all playlists in catalog.  Selected "playlist" is returned.
 222    If "view" mode is set then we're not adding anything into playlist. */
 223 static int display_playlists(char* playlist, bool view)
 224 {
 225     int result = -1;
 226     int num_playlists = 0;
 227     bool exit = false;
 228     char temp_buf[MAX_PATH];
 229     char* playlists[MAX_PLAYLISTS];
 230     struct gui_synclist playlist_lists;
 231
 232     if (create_playlist_list(playlists, MAX_PLAYLISTS,
 233             &num_playlists) != 0)
 234         return -1;
 235
 236     if (num_playlists <= 0)
 237     {
 238         splash(HZ*2, ID2P(LANG_CATALOG_NO_PLAYLISTS));
 239         return -1;
 240     }
 241
 242     if (!playlist)
 243         playlist = temp_buf;
 244
 245     gui_synclist_init(&playlist_lists, playlist_callback_name, playlists,
 246                        false, 1, NULL);
 247     if(global_settings.talk_menu)
 248         gui_synclist_set_voice_callback(&playlist_lists,
 249                                         playlist_callback_voice);
 250     gui_synclist_set_nb_items(&playlist_lists, num_playlists);
 251     gui_synclist_draw(&playlist_lists);
 252     gui_synclist_speak_item(&playlist_lists);
 253
 254     while (!exit)
 255     {
 256         int button;
 257         char* sel_file;
 258         list_do_action(CONTEXT_LIST,HZ/2,
 259                        &playlist_lists, &button,LIST_WRAP_UNLESS_HELD);
 260         sel_file = playlists[gui_synclist_get_sel_pos(&playlist_lists)];
 261
 262         switch (button)
 263         {
 264             case ACTION_STD_CANCEL:
 265                 exit = true;
 266                 break;
 267
 268             case ACTION_STD_OK:
 269                 snprintf(playlist, MAX_PATH, "%s/%s", playlist_dir, sel_file);
 270
 271                 if (view)
 272                 {
 273                     /* In view mode, selecting a playlist starts playback */
 274                     ft_play_playlist(playlist, playlist_dir, sel_file);
 275                 }
 276
 277                 result = 0;
 278                 exit = true;
 279                 break;
 280
 281             case ACTION_STD_CONTEXT:
 282                 /* context menu only available in view mode */
 283                 if (view)
 284                 {
 285                     snprintf(playlist, MAX_PATH, "%s/%s", playlist_dir,
 286                         sel_file);
 287
 288                     if (onplay(playlist, FILE_ATTR_M3U,
 289                             CONTEXT_TREE, false) != ONPLAY_OK)
 290                     {
 291                         result = 0;
 292                         exit = true;
 293                     }
 294                     else
 295                     {
 296                         gui_synclist_draw(&playlist_lists);
 297                         gui_synclist_speak_item(&playlist_lists);
 298                     }
 299                 }
 300                 break;
 301
 302             default:
 303                 if(default_event_handler(button) == SYS_USB_CONNECTED)
 304                 {
 305                     result = -1;
 306                     exit = true;
 307                 }
 308                 break;
 309         }
 310     }
 311     return result;
 312 }
 313
 314 /* display number of tracks inserted into playlists.  Used for directory
 315    insert */
 316 static void display_insert_count(int count)
 317 {
 318     static long talked_tick = 0;
 319     if(global_settings.talk_menu && count &&
 320         (talked_tick == 0 || TIME_AFTER(current_tick, talked_tick+5*HZ)))
 321     {
 322         talked_tick = current_tick;
 323         talk_number(count, false);
 324         talk_id(LANG_PLAYLIST_INSERT_COUNT, true);
 325     }
 326
 327     splashf(0, str(LANG_PLAYLIST_INSERT_COUNT), count, str(LANG_OFF_ABORT));
 328 }
 329
 330 /* Add specified track into playlist.  Callback from directory insert */
 331 static int add_track_to_playlist(char* filename, void* context)
 332 {
 333     struct add_track_context* c = (struct add_track_context*) context;
 334
 335     if (fdprintf(c->fd, "%s\n", filename) <= 0)
 336         return -1;
 337
 338     (c->count)++;
 339
 340     if (((c->count)%PLAYLIST_DISPLAY_COUNT) == 0)
 341         display_insert_count(c->count);
 342
 343     return 0;
 344 }
 345
 346 /* Add "sel" file into specified "playlist".  How to insert depends on type
 347    of file */
 348 static int add_to_playlist(const char* playlist, bool new_playlist,
 349                            const char* sel, int sel_attr)
 350 {
 351     int fd;
 352     int result = -1;
 353
 354     if (new_playlist)
 355         fd = open_utf8(playlist, O_CREAT|O_WRONLY|O_TRUNC);
 356     else
 357         fd = open(playlist, O_CREAT|O_WRONLY|O_APPEND, 0666);
 358
 359     if(fd < 0)
 360         return result;
 361
 362     /* In case we're in the playlist directory */
 363     reload_directory();
 364
 365     if ((sel_attr & FILE_ATTR_MASK) == FILE_ATTR_AUDIO)
 366     {
 367         /* append the selected file */
 368         if (fdprintf(fd, "%s\n", sel) > 0)
 369             result = 0;
 370     }
 371     else if ((sel_attr & FILE_ATTR_MASK) == FILE_ATTR_M3U)
 372     {
 373         /* append playlist */
 374         int f, fs, i;
 375         char buf[1024];
 376
 377         if(strcasecmp(playlist, sel) == 0)
 378             goto exit;
 379
 380         f = open_utf8(sel, O_RDONLY);
 381         if (f < 0)
 382             goto exit;
 383
 384         i = lseek(f, 0, SEEK_CUR);
 385         fs = filesize(f);
 386         while (i < fs)
 387         {
 388             int n;
 389
 390             n = read(f, buf, sizeof(buf));
 391             if (n < 0)
 392                 break;
 393
 394             if (write(fd, buf, n) < 0)
 395                 break;
 396
 397             i += n;
 398         }
 399
 400         if (i >= fs)
 401             result = 0;
 402
 403         close(f);
 404     }
 405     else if (sel_attr & ATTR_DIRECTORY)
 406     {
 407         /* search directory for tracks and append to playlist */
 408         bool recurse = false;
 409         const char *lines[] = {
 410             ID2P(LANG_RECURSE_DIRECTORY_QUESTION), sel};
 411         const struct text_message message={lines, 2};
 412         struct add_track_context context;
 413
 414         if (global_settings.recursive_dir_insert != RECURSE_ASK)
 415             recurse = (bool)global_settings.recursive_dir_insert;
 416         else
 417         {
 418             /* Ask if user wants to recurse directory */
 419             recurse = (gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES);
 420         }
 421
 422         context.fd = fd;
 423         context.count = 0;
 424
 425         display_insert_count(0);
 426
 427         result = playlist_directory_tracksearch(sel, recurse,
 428             add_track_to_playlist, &context);
 429
 430         display_insert_count(context.count);
 431     }
 432
 433 exit:
 434     close(fd);
 435     return result;
 436 }
 437 static bool in_cat_viewer = false;
 438 bool catalog_view_playlists(void)
 439 {
 440     bool retval = true;
 441     if (in_cat_viewer)
 442         return false;
 443
 444     if (initialize_catalog() == -1)
 445         return false;
 446     in_cat_viewer = true;
 447     retval = (display_playlists(NULL, true) != -1);
 448     in_cat_viewer = false;
 449     return retval;
 450 }
 451
 452 bool catalog_add_to_a_playlist(const char* sel, int sel_attr,
 453                                bool new_playlist, char *m3u8name)
 454 {
 455     char playlist[MAX_PATH];
 456
 457     if (initialize_catalog() == -1)
 458         return false;
 459
 460     if (new_playlist)
 461     {
 462         size_t len;
 463         if (m3u8name == NULL)
 464         {
 465             snprintf(playlist, MAX_PATH, "%s/", playlist_dir);
 466             if (kbd_input(playlist, MAX_PATH))
 467                 return false;
 468         }
 469         else
 470             strcpy(playlist, m3u8name);
 471
 472         len = strlen(playlist);
 473
 474         if(len > 4 && !strcasecmp(&playlist[len-4], ".m3u"))
 475             strcat(playlist, "8");
 476         else if(len <= 5 || strcasecmp(&playlist[len-5], ".m3u8"))
 477             strcat(playlist, ".m3u8");
 478     }
 479     else
 480     {
 481         if (display_playlists(playlist, false) == -1)
 482             return false;
 483     }
 484
 485     if (add_to_playlist(playlist, new_playlist, sel, sel_attr) == 0)
 486     {
 487         strlcpy(most_recent_playlist, playlist+playlist_dir_length+1,
 488             sizeof(most_recent_playlist));
 489         return true;
 490     }
 491     else
 492         return false;
 493 }