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