apps/filetree.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 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
  40 static int boot_size = 0;
  41 static int boot_cluster;
  42 extern bool boot_changed;
  43
  44 int ft_build_playlist(struct tree_context* c, int start_index)
  45 {
  46     int i;
  47     int start=start_index;
  48
  49     struct entry *dircache = c->dircache;
  50
  51     for(i = 0;i < c->filesindir;i++)
  52     {
  53         if((dircache[i].attr & TREE_ATTR_MASK) == TREE_ATTR_MPA)
  54         {
  55             DEBUGF("Adding %s\n", dircache[i].name);
  56             if (playlist_add(dircache[i].name) < 0)
  57                 break;
  58         }
  59         else
  60         {
  61             /* Adjust the start index when se skip non-MP3 entries */
  62             if(i < start)
  63                 start_index--;
  64         }
  65     }
  66
  67     return start_index;
  68 }
  69
  70 /* walk a directory and check all dircache entries if a .talk file exists */
  71 static void check_file_thumbnails(struct tree_context* c)
  72 {
  73     int i;
  74     struct dirent *entry;
  75     struct entry* dircache = c->dircache;
  76     DIR *dir;
  77
  78     dir = opendir(c->currdir);
  79     if(!dir)
  80         return;
  81
  82     for (i=0; i < c->filesindir; i++) /* mark all files as non talking, except the .talk ones */
  83     {
  84         if (dircache[i].attr & ATTR_DIRECTORY)
  85             continue; /* we're not touching directories */
  86
  87         if (strcasecmp(file_thumbnail_ext,
  88             &dircache[i].name[strlen(dircache[i].name)
  89                               - strlen(file_thumbnail_ext)]))
  90         {   /* no .talk file */
  91             dircache[i].attr &= ~TREE_ATTR_THUMBNAIL; /* clear */
  92         }
  93         else
  94         {   /* .talk file, we later let them speak themselves */
  95             dircache[i].attr |= TREE_ATTR_THUMBNAIL; /* set */
  96         }
  97     }
  98
  99     while((entry = readdir(dir)) != 0) /* walk directory */
 100     {
 101         int ext_pos;
 102
 103         ext_pos = strlen(entry->d_name) - strlen(file_thumbnail_ext);
 104         if (ext_pos <= 0 /* too short to carry ".talk" */
 105             || (entry->attribute & ATTR_DIRECTORY) /* no file */
 106             || strcasecmp(&entry->d_name[ext_pos], file_thumbnail_ext))
 107         {   /* or doesn't end with ".talk", no candidate */
 108             continue;
 109         }
 110
 111         /* terminate the (disposable) name in dir buffer,
 112            this truncates off the ".talk" without needing an extra buffer */
 113         entry->d_name[ext_pos] = '\0';
 114
 115         /* search corresponding file in dir cache */
 116         for (i=0; i < c->filesindir; i++)
 117         {
 118             if (!strcasecmp(dircache[i].name, entry->d_name))
 119             {   /* match */
 120                 dircache[i].attr |= TREE_ATTR_THUMBNAIL; /* set the flag */
 121                 break; /* exit search loop, because we found it */
 122             }
 123         }
 124     }
 125     closedir(dir);
 126 }
 127
 128 /* support function for qsort() */
 129 static int compare(const void* p1, const void* p2)
 130 {
 131     struct entry* e1 = (struct entry*)p1;
 132     struct entry* e2 = (struct entry*)p2;
 133     int criteria;
 134
 135     if (e1->attr & ATTR_DIRECTORY && e2->attr & ATTR_DIRECTORY)
 136     {   /* two directories */
 137         criteria = global_settings.sort_dir;
 138
 139         if (e1->attr & ATTR_VOLUME || e2->attr & ATTR_VOLUME)
 140         {   /* a volume identifier is involved */
 141             if (e1->attr & ATTR_VOLUME && e2->attr & ATTR_VOLUME)
 142                 criteria = 0; /* two volumes: sort alphabetically */
 143             else /* only one is a volume: volume first */
 144                 return (e2->attr & ATTR_VOLUME) - (e1->attr & ATTR_VOLUME);
 145         }
 146     }
 147     else if (!(e1->attr & ATTR_DIRECTORY) && !(e2->attr & ATTR_DIRECTORY))
 148     {   /* two files */
 149         criteria = global_settings.sort_file;
 150     }
 151     else /* dir and file, dir goes first */
 152         return ( e2->attr & ATTR_DIRECTORY ) - ( e1->attr & ATTR_DIRECTORY );
 153
 154     switch(criteria)
 155     {
 156         case 3: /* sort type */
 157         {
 158             int t1 = e1->attr & TREE_ATTR_MASK;
 159             int t2 = e2->attr & TREE_ATTR_MASK;
 160
 161             if (!t1) /* unknown type */
 162                 t1 = 0x7FFFFFFF; /* gets a high number, to sort after known */
 163             if (!t2) /* unknown type */
 164                 t2 = 0x7FFFFFFF; /* gets a high number, to sort after known */
 165
 166             if (t1 - t2) /* if different */
 167                 return t1 - t2;
 168             /* else fall through to alphabetical sorting */
 169         }
 170         case 0: /* sort alphabetically */
 171             if (global_settings.sort_case)
 172                 return strncmp(e1->name, e2->name, MAX_PATH);
 173             else
 174                 return strncasecmp(e1->name, e2->name, MAX_PATH);
 175
 176         case 1: /* sort date */
 177             return e1->time_write - e2->time_write;
 178
 179         case 2: /* sort date, newest first */
 180             return e2->time_write - e1->time_write;
 181     }
 182     return 0; /* never reached */
 183 }
 184
 185 /* load and sort directory into dircache.  returns NULL on failure. */
 186 int ft_load(struct tree_context* c, bool *buffer_full)
 187 {
 188     extern char lastdir[]; /* from tree.c */
 189     int i;
 190     DIR *dir = opendir(c->currdir);
 191     if(!dir)
 192         return -1; /* not a directory */
 193
 194     int name_buffer_used = 0;
 195     c->dirsindir = 0;
 196     if (buffer_full)
 197         *buffer_full = false;
 198
 199     for ( i=0; i < global_settings.max_files_in_dir; i++ ) {
 200         int len;
 201         struct dirent *entry = readdir(dir);
 202         struct entry* dptr = (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             if (buffer_full)
 271                 *buffer_full = true;
 272             break;
 273         }
 274         dptr->name = &c->name_buffer[name_buffer_used];
 275         dptr->time_write = entry->wrtdate<<16 | entry->wrttime; /* in one # */
 276         strcpy(dptr->name,entry->d_name);
 277         name_buffer_used += len + 1;
 278
 279         if (dptr->attr & ATTR_DIRECTORY) /* count the remaining dirs */
 280             c->dirsindir++;
 281     }
 282     c->filesindir = i;
 283     closedir(dir);
 284
 285     strcpy(lastdir, c->currdir);
 286
 287     qsort(c->dircache,i,sizeof(struct entry),compare);
 288
 289     /* If thumbnail talking is enabled, make an extra run to mark files with
 290        associated thumbnails, so we don't do unsuccessful spinups later. */
 291     if (global_settings.talk_file == 3)
 292         check_file_thumbnails(c); /* map .talk to ours */
 293
 294     return 0;
 295 }
 296
 297 int ft_enter(struct tree_context* c)
 298 {
 299     int rc = 0;
 300     char buf[MAX_PATH];
 301     struct entry *dircache = c->dircache;
 302     struct entry* file = &dircache[c->dircursor + c->dirstart];
 303     bool reload_root = false;
 304     bool reload_dir = false;
 305     bool start_wps = false;
 306     bool exit_func = false;
 307
 308     if (c->currdir[1])
 309         snprintf(buf,sizeof(buf),"%s/%s",c->currdir, file->name);
 310     else
 311         snprintf(buf,sizeof(buf),"/%s",file->name);
 312
 313     if (file->attr & ATTR_DIRECTORY) {
 314         memcpy(c->currdir, buf, sizeof(c->currdir));
 315         if ( c->dirlevel < MAX_DIR_LEVELS ) {
 316             c->dirpos[c->dirlevel] = c->dirstart;
 317             c->cursorpos[c->dirlevel] = c->dircursor;
 318         }
 319         c->dirlevel++;
 320         c->dircursor=0;
 321         c->dirstart=0;
 322     }
 323     else {
 324         int seed = current_tick;
 325         bool play = false;
 326         int start_index=0;
 327
 328         lcd_stop_scroll();
 329         switch ( file->attr & TREE_ATTR_MASK ) {
 330             case TREE_ATTR_M3U:
 331                 if (bookmark_autoload(buf))
 332                     break;
 333
 334                 if (playlist_create(c->currdir, file->name) != -1)
 335                 {
 336                     if (global_settings.playlist_shuffle)
 337                         playlist_shuffle(seed, -1);
 338                     start_index = 0;
 339                     playlist_start(start_index,0);
 340                     play = true;
 341                 }
 342                 break;
 343
 344             case TREE_ATTR_MPA:
 345                 if (bookmark_autoload(c->currdir))
 346                     break;
 347
 348                 if (playlist_create(c->currdir, NULL) != -1)
 349                 {
 350                     start_index =
 351                         ft_build_playlist(c, c->dircursor + c->dirstart);
 352                     if (global_settings.playlist_shuffle)
 353                     {
 354                         start_index = playlist_shuffle(seed, start_index);
 355
 356                         /* when shuffling dir.: play all files
 357                            even if the file selected by user is
 358                            not the first one */
 359                         if (!global_settings.play_selected)
 360                             start_index = 0;
 361                     }
 362
 363                     playlist_start(start_index, 0);
 364                     play = true;
 365                 }
 366                 break;
 367
 368                 /* wps config file */
 369             case TREE_ATTR_WPS:
 370                 wps_load(buf,true);
 371                 set_file(buf, global_settings.wps_file,
 372                          MAX_FILENAME);
 373                 break;
 374
 375             case TREE_ATTR_CFG:
 376                 if (!settings_load_config(buf))
 377                     break;
 378                 lcd_clear_display();
 379                 lcd_puts(0,0,str(LANG_SETTINGS_LOADED1));
 380                 lcd_puts(0,1,str(LANG_SETTINGS_LOADED2));
 381 #ifdef HAVE_LCD_BITMAP
 382                 lcd_update();
 383 #endif
 384                 sleep(HZ/2);
 385                 break;
 386
 387             case TREE_ATTR_BMARK:
 388                 bookmark_load(buf, false);
 389                 reload_dir = true;
 390                 break;
 391
 392             case TREE_ATTR_LNG:
 393                 if(!lang_load(buf)) {
 394                     extern bool language_changed; /* from settings_menu.c */
 395
 396                     set_file(buf, global_settings.lang_file,
 397                              MAX_FILENAME);
 398                     talk_init(); /* use voice of same language */
 399                     splash(HZ, true, str(LANG_LANGUAGE_LOADED));
 400                     language_changed = true;
 401                 }
 402                 break;
 403
 404 #ifdef HAVE_LCD_BITMAP
 405             case TREE_ATTR_FONT:
 406                 font_load(buf);
 407                 set_file(buf, global_settings.font_file, MAX_FILENAME);
 408                 break;
 409 #endif
 410
 411 #ifndef SIMULATOR
 412                 /* firmware file */
 413             case TREE_ATTR_MOD:
 414                 rolo_load(buf);
 415                 break;
 416 #endif
 417
 418                 /* plugin file */
 419             case TREE_ATTR_ROCK:
 420                 if (plugin_load(buf,NULL) == PLUGIN_USB_CONNECTED)
 421                 {
 422                     if(*c->dirfilter > NUM_FILTER_MODES)
 423                         /* leave sub-browsers after usb, doing
 424                            otherwise might be confusing to the user */
 425                         exit_func = true;
 426                     else
 427                         reload_root = true;
 428                 }
 429                 break;
 430
 431             default:
 432             {
 433                 char* plugin = filetype_get_plugin(file);
 434                 if (plugin)
 435                 {
 436                     if (plugin_load(plugin,buf) == PLUGIN_USB_CONNECTED)
 437                         reload_root = true;
 438                 }
 439                 break;
 440             }
 441         }
 442
 443         if ( play ) {
 444             if ( global_settings.resume ) {
 445                 /* the resume_index must always be the index in the
 446                    shuffled list in case shuffle is enabled */
 447                 global_settings.resume_index = start_index;
 448                 global_settings.resume_offset = 0;
 449                 settings_save();
 450             }
 451
 452             start_wps = true;
 453         }
 454         else {
 455             if (*c->dirfilter > NUM_FILTER_MODES &&
 456                 *c->dirfilter != SHOW_FONT &&
 457                 *c->dirfilter != SHOW_PLUGINS)
 458             {
 459                 exit_func = true;
 460             }
 461         }
 462     }
 463
 464     if (reload_dir)
 465         rc = 1;
 466     if (reload_root)
 467         rc = 2;
 468     if (start_wps)
 469         rc = 3;
 470     if (exit_func)
 471         rc = 4;
 472
 473     return rc;
 474 }
 475
 476 int ft_exit(struct tree_context* c)
 477 {
 478     extern char lastfile[]; /* from tree.c */
 479     char buf[MAX_PATH];
 480     int rc = 0;
 481     bool exit_func = false;
 482
 483     int i = strlen(c->currdir);
 484     if (i>1) {
 485         while (c->currdir[i-1]!='/')
 486             i--;
 487         strcpy(buf,&c->currdir[i]);
 488         if (i==1)
 489             c->currdir[i]=0;
 490         else
 491             c->currdir[i-1]=0;
 492
 493         if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
 494             exit_func = true;
 495
 496         c->dirlevel--;
 497         if ( c->dirlevel < MAX_DIR_LEVELS ) {
 498             c->dirstart = c->dirpos[c->dirlevel];
 499             c->dircursor = c->cursorpos[c->dirlevel];
 500         }
 501         else
 502             c->dirstart = c->dircursor = 0;
 503
 504         if (c->dirstart == -1)
 505             strcpy(lastfile, buf);
 506     }
 507     else
 508     {
 509         if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
 510             exit_func = true;
 511     }
 512
 513     if (exit_func)
 514         rc = 4;
 515
 516     return rc;
 517 }