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