apps/filetree.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Björn Stenberg
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include <stdlib.h>
  20 #include <file.h>
  21 #include <dir.h>
  22 #include <string.h>
  23 #include <kernel.h>
  24 #include <lcd.h>
  25 #include <debug.h>
  26 #include <font.h>
  27 #include "bookmark.h"
  28 #include "tree.h"
  29 #include "settings.h"
  30 #include "filetypes.h"
  31 #include "talk.h"
  32 #include "playlist.h"
  33 #include "wps-display.h"
  34 #include "lang.h"
  35 #include "language.h"
  36 #include "screens.h"
  37 #include "plugin.h"
  38 #include "rolo.h"
  39 #include "sprintf.h"
  40
  41 static int boot_size = 0;
  42 static int boot_cluster;
  43 extern bool boot_changed;
  44
  45 int ft_build_playlist(struct tree_context* c, int start_index)
  46 {
  47     int i;
  48     int start=start_index;
  49
  50     struct entry *dircache = c->dircache;
  51
  52     for(i = 0;i < c->filesindir;i++)
  53     {
  54         if((dircache[i].attr & TREE_ATTR_MASK) == TREE_ATTR_MPA)
  55         {
  56             DEBUGF("Adding %s\n", dircache[i].name);
  57             if (playlist_add(dircache[i].name) < 0)
  58                 break;
  59         }
  60         else
  61         {
  62             /* Adjust the start index when se skip non-MP3 entries */
  63             if(i < start)
  64                 start_index--;
  65         }
  66     }
  67
  68     return start_index;
  69 }
  70
  71 /* walk a directory and check all dircache entries if a .talk file exists */
  72 static void check_file_thumbnails(struct tree_context* c)
  73 {
  74     int i;
  75     struct dirent *entry;
  76     struct entry* dircache = c->dircache;
  77     DIR *dir;
  78
  79     dir = opendir(c->currdir);
  80     if(!dir)
  81         return;
  82
  83     for (i=0; i < c->filesindir; i++) /* mark all files as non talking, except the .talk ones */
  84     {
  85         if (dircache[i].attr & ATTR_DIRECTORY)
  86             continue; /* we're not touching directories */
  87
  88         if (strcasecmp(file_thumbnail_ext,
  89             &dircache[i].name[strlen(dircache[i].name)
  90                               - strlen(file_thumbnail_ext)]))
  91         {   /* no .talk file */
  92             dircache[i].attr &= ~TREE_ATTR_THUMBNAIL; /* clear */
  93         }
  94         else
  95         {   /* .talk file, we later let them speak themselves */
  96             dircache[i].attr |= TREE_ATTR_THUMBNAIL; /* set */
  97         }
  98     }
  99
 100     while((entry = readdir(dir)) != 0) /* walk directory */
 101     {
 102         int ext_pos;
 103
 104         ext_pos = strlen(entry->d_name) - strlen(file_thumbnail_ext);
 105         if (ext_pos <= 0 /* too short to carry ".talk" */
 106             || (entry->attribute & ATTR_DIRECTORY) /* no file */
 107             || strcasecmp(&entry->d_name[ext_pos], file_thumbnail_ext))
 108         {   /* or doesn't end with ".talk", no candidate */
 109             continue;
 110         }
 111
 112         /* terminate the (disposable) name in dir buffer,
 113            this truncates off the ".talk" without needing an extra buffer */
 114         entry->d_name[ext_pos] = '\0';
 115
 116         /* search corresponding file in dir cache */
 117         for (i=0; i < c->filesindir; i++)
 118         {
 119             if (!strcasecmp(dircache[i].name, entry->d_name))
 120             {   /* match */
 121                 dircache[i].attr |= TREE_ATTR_THUMBNAIL; /* set the flag */
 122                 break; /* exit search loop, because we found it */
 123             }
 124         }
 125     }
 126     closedir(dir);
 127 }
 128
 129 /* support function for qsort() */
 130 static int compare(const void* p1, const void* p2)
 131 {
 132     struct entry* e1 = (struct entry*)p1;
 133     struct entry* e2 = (struct entry*)p2;
 134     int criteria;
 135
 136     if (e1->attr & ATTR_DIRECTORY && e2->attr & ATTR_DIRECTORY)
 137     {   /* two directories */
 138         criteria = global_settings.sort_dir;
 139
 140         if (e1->attr & ATTR_VOLUME || e2->attr & ATTR_VOLUME)
 141         {   /* a volume identifier is involved */
 142             if (e1->attr & ATTR_VOLUME && e2->attr & ATTR_VOLUME)
 143                 criteria = 0; /* two volumes: sort alphabetically */
 144             else /* only one is a volume: volume first */
 145                 return (e2->attr & ATTR_VOLUME) - (e1->attr & ATTR_VOLUME);
 146         }
 147     }
 148     else if (!(e1->attr & ATTR_DIRECTORY) && !(e2->attr & ATTR_DIRECTORY))
 149     {   /* two files */
 150         criteria = global_settings.sort_file;
 151     }
 152     else /* dir and file, dir goes first */
 153         return ( e2->attr & ATTR_DIRECTORY ) - ( e1->attr & ATTR_DIRECTORY );
 154
 155     switch(criteria)
 156     {
 157         case 3: /* sort type */
 158         {
 159             int t1 = e1->attr & TREE_ATTR_MASK;
 160             int t2 = e2->attr & TREE_ATTR_MASK;
 161
 162             if (!t1) /* unknown type */
 163                 t1 = 0x7FFFFFFF; /* gets a high number, to sort after known */
 164             if (!t2) /* unknown type */
 165                 t2 = 0x7FFFFFFF; /* gets a high number, to sort after known */
 166
 167             if (t1 - t2) /* if different */
 168                 return t1 - t2;
 169             /* else fall through to alphabetical sorting */
 170         }
 171         case 0: /* sort alphabetically */
 172             if (global_settings.sort_case)
 173                 return strncmp(e1->name, e2->name, MAX_PATH);
 174             else
 175                 return strncasecmp(e1->name, e2->name, MAX_PATH);
 176
 177         case 1: /* sort date */
 178             return e1->time_write - e2->time_write;
 179
 180         case 2: /* sort date, newest first */
 181             return e2->time_write - e1->time_write;
 182     }
 183     return 0; /* never reached */
 184 }
 185
 186 /* load and sort directory into dircache.  returns NULL on failure. */
 187 int ft_load(struct tree_context* c)
 188 {
 189     int i;
 190     int name_buffer_used = 0;
 191     DIR *dir = opendir(c->currdir);
 192     if(!dir)
 193         return -1; /* not a directory */
 194
 195     c->dirsindir = 0;
 196     c->dirfull = false;
 197
 198     for ( i=0; i < global_settings.max_files_in_dir; i++ ) {
 199         int len;
 200         struct dirent *entry = readdir(dir);
 201         struct entry* dptr =
 202             (struct entry*)(c->dircache + i * sizeof(struct entry));
 203         if (!entry)
 204             break;
 205
 206         len = strlen(entry->d_name);
 207
 208         /* skip directories . and .. */
 209         if ((entry->attribute & ATTR_DIRECTORY) &&
 210             (((len == 1) &&
 211             (!strncmp(entry->d_name, ".", 1))) ||
 212             ((len == 2) &&
 213             (!strncmp(entry->d_name, "..", 2))))) {
 214             i--;
 215             continue;
 216         }
 217
 218         /* Skip FAT volume ID */
 219         if (entry->attribute & ATTR_VOLUME_ID) {
 220             i--;
 221             continue;
 222         }
 223
 224         /* filter out dotfiles and hidden files */
 225         if (*c->dirfilter != SHOW_ALL &&
 226             ((entry->d_name[0]=='.') ||
 227             (entry->attribute & ATTR_HIDDEN))) {
 228             i--;
 229             continue;
 230         }
 231
 232         dptr->attr = entry->attribute;
 233
 234         /* check for known file types */
 235         if ( !(dptr->attr & ATTR_DIRECTORY) && (len > 4) )
 236            dptr->attr |= filetype_get_attr(entry->d_name);
 237
 238         /* memorize/compare details about the boot file */
 239         if ((c->currdir[1] == 0) && !strcasecmp(entry->d_name, BOOTFILE)) {
 240             if (boot_size) {
 241                 if ((entry->size != boot_size) ||
 242                     (entry->startcluster != boot_cluster))
 243                     boot_changed = true;
 244             }
 245             boot_size = entry->size;
 246             boot_cluster = entry->startcluster;
 247         }
 248
 249         /* filter out non-visible files */
 250         if (!(dptr->attr & ATTR_DIRECTORY) && (
 251             (*c->dirfilter == SHOW_PLAYLIST &&
 252              (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_M3U) ||
 253             ((*c->dirfilter == SHOW_MUSIC &&
 254              (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_MPA) &&
 255              (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_M3U) ||
 256             (*c->dirfilter == SHOW_SUPPORTED && !filetype_supported(dptr->attr)) ||
 257             (*c->dirfilter == SHOW_WPS && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_WPS) ||
 258             (*c->dirfilter == SHOW_CFG && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_CFG) ||
 259             (*c->dirfilter == SHOW_LNG && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_LNG) ||
 260             (*c->dirfilter == SHOW_MOD && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_MOD) ||
 261             (*c->dirfilter == SHOW_FONT && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_FONT) ||
 262             (*c->dirfilter == SHOW_PLUGINS && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_ROCK)))
 263         {
 264             i--;
 265             continue;
 266         }
 267
 268         if (len > c->name_buffer_size - name_buffer_used - 1) {
 269             /* Tell the world that we ran out of buffer space */
 270             c->dirfull = true;
 271             break;
 272         }
 273         dptr->name = &c->name_buffer[name_buffer_used];
 274         dptr->time_write = entry->wrtdate<<16 | entry->wrttime; /* in one # */
 275         strcpy(dptr->name,entry->d_name);
 276         name_buffer_used += len + 1;
 277
 278         if (dptr->attr & ATTR_DIRECTORY) /* count the remaining dirs */
 279             c->dirsindir++;
 280     }
 281     c->filesindir = i;
 282     c->dirlength = i;
 283     closedir(dir);
 284
 285     qsort(c->dircache,i,sizeof(struct entry),compare);
 286
 287     /* If thumbnail talking is enabled, make an extra run to mark files with
 288        associated thumbnails, so we don't do unsuccessful spinups later. */
 289     if (global_settings.talk_file == 3)
 290         check_file_thumbnails(c); /* map .talk to ours */
 291
 292     return 0;
 293 }
 294
 295 int ft_enter(struct tree_context* c)
 296 {
 297     int rc = 0;
 298     char buf[MAX_PATH];
 299     struct entry *dircache = c->dircache;
 300     struct entry* file = &dircache[c->dircursor + c->dirstart];
 301     bool reload_root = false;
 302     bool reload_dir = false;
 303     bool start_wps = false;
 304     bool exit_func = false;
 305
 306     if (c->currdir[1])
 307         snprintf(buf,sizeof(buf),"%s/%s",c->currdir, file->name);
 308     else
 309         snprintf(buf,sizeof(buf),"/%s",file->name);
 310
 311     if (file->attr & ATTR_DIRECTORY) {
 312         memcpy(c->currdir, buf, sizeof(c->currdir));
 313         if ( c->dirlevel < MAX_DIR_LEVELS ) {
 314             c->dirpos[c->dirlevel] = c->dirstart;
 315             c->cursorpos[c->dirlevel] = c->dircursor;
 316         }
 317         c->dirlevel++;
 318         c->dircursor=0;
 319         c->dirstart=0;
 320     }
 321     else {
 322         int seed = current_tick;
 323         bool play = false;
 324         int start_index=0;
 325
 326         lcd_stop_scroll();
 327         switch ( file->attr & TREE_ATTR_MASK ) {
 328             case TREE_ATTR_M3U:
 329                 if (bookmark_autoload(buf))
 330                     break;
 331
 332                 if (playlist_create(c->currdir, file->name) != -1)
 333                 {
 334                     if (global_settings.playlist_shuffle)
 335                         playlist_shuffle(seed, -1);
 336                     start_index = 0;
 337                     playlist_start(start_index,0);
 338                     play = true;
 339                 }
 340                 break;
 341
 342             case TREE_ATTR_MPA:
 343                 if (bookmark_autoload(c->currdir))
 344                     break;
 345
 346                 if (playlist_create(c->currdir, NULL) != -1)
 347                 {
 348                     start_index =
 349                         ft_build_playlist(c, c->dircursor + c->dirstart);
 350                     if (global_settings.playlist_shuffle)
 351                     {
 352                         start_index = playlist_shuffle(seed, start_index);
 353
 354                         /* when shuffling dir.: play all files
 355                            even if the file selected by user is
 356                            not the first one */
 357                         if (!global_settings.play_selected)
 358                             start_index = 0;
 359                     }
 360
 361                     playlist_start(start_index, 0);
 362                     play = true;
 363                 }
 364                 break;
 365
 366                 /* wps config file */
 367             case TREE_ATTR_WPS:
 368                 wps_load(buf,true);
 369                 set_file(buf, global_settings.wps_file,
 370                          MAX_FILENAME);
 371                 break;
 372
 373             case TREE_ATTR_CFG:
 374                 if (!settings_load_config(buf))
 375                     break;
 376                 lcd_clear_display();
 377                 lcd_puts(0,0,str(LANG_SETTINGS_LOADED1));
 378                 lcd_puts(0,1,str(LANG_SETTINGS_LOADED2));
 379 #ifdef HAVE_LCD_BITMAP
 380                 lcd_update();
 381 #endif
 382                 sleep(HZ/2);
 383                 break;
 384
 385             case TREE_ATTR_BMARK:
 386                 bookmark_load(buf, false);
 387                 reload_dir = true;
 388                 break;
 389
 390             case TREE_ATTR_LNG:
 391                 if(!lang_load(buf)) {
 392                     set_file(buf, global_settings.lang_file,
 393                              MAX_FILENAME);
 394                     talk_init(); /* use voice of same language */
 395                     splash(HZ, true, str(LANG_LANGUAGE_LOADED));
 396                 }
 397                 break;
 398
 399 #ifdef HAVE_LCD_BITMAP
 400             case TREE_ATTR_FONT:
 401                 font_load(buf);
 402                 set_file(buf, global_settings.font_file, MAX_FILENAME);
 403                 break;
 404 #endif
 405
 406 #ifndef SIMULATOR
 407                 /* firmware file */
 408             case TREE_ATTR_MOD:
 409                 rolo_load(buf);
 410                 break;
 411 #endif
 412
 413                 /* plugin file */
 414             case TREE_ATTR_ROCK:
 415                 if (plugin_load(buf,NULL) == PLUGIN_USB_CONNECTED)
 416                 {
 417                     if(*c->dirfilter > NUM_FILTER_MODES)
 418                         /* leave sub-browsers after usb, doing
 419                            otherwise might be confusing to the user */
 420                         exit_func = true;
 421                     else
 422                         reload_root = true;
 423                 }
 424                 break;
 425
 426             default:
 427             {
 428                 char* plugin = filetype_get_plugin(file);
 429                 if (plugin)
 430                 {
 431                     if (plugin_load(plugin,buf) == PLUGIN_USB_CONNECTED)
 432                         reload_root = true;
 433                 }
 434                 break;
 435             }
 436         }
 437
 438         if ( play ) {
 439             if ( global_settings.resume ) {
 440                 /* the resume_index must always be the index in the
 441                    shuffled list in case shuffle is enabled */
 442                 global_settings.resume_index = start_index;
 443                 global_settings.resume_offset = 0;
 444                 settings_save();
 445             }
 446
 447             start_wps = true;
 448         }
 449         else {
 450             if (*c->dirfilter > NUM_FILTER_MODES &&
 451                 *c->dirfilter != SHOW_FONT &&
 452                 *c->dirfilter != SHOW_PLUGINS)
 453             {
 454                 exit_func = true;
 455             }
 456         }
 457     }
 458
 459     if (reload_dir)
 460         rc = 1;
 461     if (reload_root)
 462         rc = 2;
 463     if (start_wps)
 464         rc = 3;
 465     if (exit_func)
 466         rc = 4;
 467
 468     return rc;
 469 }
 470
 471 int ft_exit(struct tree_context* c)
 472 {
 473     extern char lastfile[]; /* from tree.c */
 474     char buf[MAX_PATH];
 475     int rc = 0;
 476     bool exit_func = false;
 477
 478     int i = strlen(c->currdir);
 479     if (i>1) {
 480         while (c->currdir[i-1]!='/')
 481             i--;
 482         strcpy(buf,&c->currdir[i]);
 483         if (i==1)
 484             c->currdir[i]=0;
 485         else
 486             c->currdir[i-1]=0;
 487
 488         if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
 489             exit_func = true;
 490
 491         c->dirlevel--;
 492         if ( c->dirlevel < MAX_DIR_LEVELS ) {
 493             c->dirstart = c->dirpos[c->dirlevel];
 494             c->dircursor = c->cursorpos[c->dirlevel];
 495         }
 496         else
 497             c->dirstart = c->dircursor = 0;
 498
 499         if (c->dirstart == -1)
 500             strcpy(lastfile, buf);
 501     }
 502     else
 503     {
 504         if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
 505             exit_func = true;
 506     }
 507
 508     if (exit_func)
 509         rc = 4;
 510
 511     return rc;
 512 }