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     else if (!(e1->attr & ATTR_DIRECTORY) && !(e2->attr & ATTR_DIRECTORY))
 140     {   /* two files */
 141         criteria = global_settings.sort_file;
 142     }
 143     else /* dir and file, dir goes first */
 144         return ( e2->attr & ATTR_DIRECTORY ) - ( e1->attr & ATTR_DIRECTORY );
 145
 146     switch(criteria)
 147     {
 148         case 3: /* sort type */
 149         {
 150             int t1 = e1->attr & TREE_ATTR_MASK;
 151             int t2 = e2->attr & TREE_ATTR_MASK;
 152
 153             if (!t1) /* unknown type */
 154                 t1 = 0x7FFFFFFF; /* gets a high number, to sort after known */
 155             if (!t2) /* unknown type */
 156                 t2 = 0x7FFFFFFF; /* gets a high number, to sort after known */
 157
 158             if (t1 - t2) /* if different */
 159                 return t1 - t2;
 160             /* else fall through to alphabetical sorting */
 161         }
 162         case 0: /* sort alphabetically */
 163             if (global_settings.sort_case)
 164                 return strncmp(e1->name, e2->name, MAX_PATH);
 165             else
 166                 return strncasecmp(e1->name, e2->name, MAX_PATH);
 167
 168         case 1: /* sort date */
 169             return e1->time_write - e2->time_write;
 170
 171         case 2: /* sort date, newest first */
 172             return e2->time_write - e1->time_write;
 173     }
 174     return 0; /* never reached */
 175 }
 176
 177 /* load and sort directory into dircache.  returns NULL on failure. */
 178 int ft_load(struct tree_context* c, bool *buffer_full)
 179 {
 180     extern char lastdir[]; /* from tree.c */
 181     int i;
 182     DIR *dir = opendir(c->currdir);
 183     if(!dir)
 184         return -1; /* not a directory */
 185
 186     int name_buffer_used = 0;
 187     c->dirsindir = 0;
 188     if (buffer_full)
 189         *buffer_full = false;
 190
 191     for ( i=0; i < global_settings.max_files_in_dir; i++ ) {
 192         int len;
 193         struct dirent *entry = readdir(dir);
 194         struct entry* dptr = (struct entry*)(c->dircache + i * sizeof(struct entry));
 195         if (!entry)
 196             break;
 197
 198         len = strlen(entry->d_name);
 199
 200         /* skip directories . and .. */
 201         if ((entry->attribute & ATTR_DIRECTORY) &&
 202             (((len == 1) &&
 203             (!strncmp(entry->d_name, ".", 1))) ||
 204             ((len == 2) &&
 205             (!strncmp(entry->d_name, "..", 2))))) {
 206             i--;
 207             continue;
 208         }
 209
 210         /* Skip FAT volume ID */
 211         if (entry->attribute & ATTR_VOLUME_ID) {
 212             i--;
 213             continue;
 214         }
 215
 216         /* filter out dotfiles and hidden files */
 217         if (*c->dirfilter != SHOW_ALL &&
 218             ((entry->d_name[0]=='.') ||
 219             (entry->attribute & ATTR_HIDDEN))) {
 220             i--;
 221             continue;
 222         }
 223
 224         dptr->attr = entry->attribute;
 225
 226         /* check for known file types */
 227         if ( !(dptr->attr & ATTR_DIRECTORY) && (len > 4) )
 228            dptr->attr |= filetype_get_attr(entry->d_name);
 229
 230         /* memorize/compare details about the boot file */
 231         if ((c->currdir[1] == 0) && !strcasecmp(entry->d_name, BOOTFILE)) {
 232             if (boot_size) {
 233                 if ((entry->size != boot_size) ||
 234                     (entry->startcluster != boot_cluster))
 235                     boot_changed = true;
 236             }
 237             boot_size = entry->size;
 238             boot_cluster = entry->startcluster;
 239         }
 240
 241         /* filter out non-visible files */
 242         if (!(dptr->attr & ATTR_DIRECTORY) && (
 243             (*c->dirfilter == SHOW_PLAYLIST &&
 244              (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_M3U) ||
 245             ((*c->dirfilter == SHOW_MUSIC &&
 246              (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_MPA) &&
 247              (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_M3U) ||
 248             (*c->dirfilter == SHOW_SUPPORTED && !filetype_supported(dptr->attr)) ||
 249             (*c->dirfilter == SHOW_WPS && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_WPS) ||
 250             (*c->dirfilter == SHOW_CFG && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_CFG) ||
 251             (*c->dirfilter == SHOW_LNG && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_LNG) ||
 252             (*c->dirfilter == SHOW_MOD && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_MOD) ||
 253             (*c->dirfilter == SHOW_FONT && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_FONT) ||
 254             (*c->dirfilter == SHOW_PLUGINS && (dptr->attr & TREE_ATTR_MASK) != TREE_ATTR_ROCK)))
 255         {
 256             i--;
 257             continue;
 258         }
 259
 260         if (len > c->name_buffer_size - name_buffer_used - 1) {
 261             /* Tell the world that we ran out of buffer space */
 262             if (buffer_full)
 263                 *buffer_full = true;
 264             break;
 265         }
 266         dptr->name = &c->name_buffer[name_buffer_used];
 267         dptr->time_write = entry->wrtdate<<16 | entry->wrttime; /* in one # */
 268         strcpy(dptr->name,entry->d_name);
 269         name_buffer_used += len + 1;
 270
 271         if (dptr->attr & ATTR_DIRECTORY) /* count the remaining dirs */
 272             c->dirsindir++;
 273     }
 274     c->filesindir = i;
 275     closedir(dir);
 276
 277     strcpy(lastdir, c->currdir);
 278
 279     qsort(c->dircache,i,sizeof(struct entry),compare);
 280
 281     /* If thumbnail talking is enabled, make an extra run to mark files with
 282        associated thumbnails, so we don't do unsuccessful spinups later. */
 283     if (global_settings.talk_file == 3)
 284         check_file_thumbnails(c); /* map .talk to ours */
 285
 286     return 0;
 287 }
 288
 289 int ft_enter(struct tree_context* c)
 290 {
 291     int rc = 0;
 292     char buf[MAX_PATH];
 293     struct entry *dircache = c->dircache;
 294     struct entry* file = &dircache[c->dircursor + c->dirstart];
 295     bool reload_root = false;
 296     bool reload_dir = false;
 297     bool start_wps = false;
 298     bool exit_func = false;
 299
 300     if (c->currdir[1])
 301         snprintf(buf,sizeof(buf),"%s/%s",c->currdir, file->name);
 302     else
 303         snprintf(buf,sizeof(buf),"/%s",file->name);
 304
 305     if (file->attr & ATTR_DIRECTORY) {
 306         memcpy(c->currdir, buf, sizeof(c->currdir));
 307         if ( c->dirlevel < MAX_DIR_LEVELS ) {
 308             c->dirpos[c->dirlevel] = c->dirstart;
 309             c->cursorpos[c->dirlevel] = c->dircursor;
 310         }
 311         c->dirlevel++;
 312         c->dircursor=0;
 313         c->dirstart=0;
 314     }
 315     else {
 316         int seed = current_tick;
 317         bool play = false;
 318         int start_index=0;
 319
 320         lcd_stop_scroll();
 321         switch ( file->attr & TREE_ATTR_MASK ) {
 322             case TREE_ATTR_M3U:
 323                 if (bookmark_autoload(buf))
 324                     break;
 325
 326                 if (playlist_create(c->currdir, file->name) != -1)
 327                 {
 328                     if (global_settings.playlist_shuffle)
 329                         playlist_shuffle(seed, -1);
 330                     start_index = 0;
 331                     playlist_start(start_index,0);
 332                     play = true;
 333                 }
 334                 break;
 335
 336             case TREE_ATTR_MPA:
 337                 if (bookmark_autoload(c->currdir))
 338                     break;
 339
 340                 if (playlist_create(c->currdir, NULL) != -1)
 341                 {
 342                     start_index =
 343                         ft_build_playlist(c, c->dircursor + c->dirstart);
 344                     if (global_settings.playlist_shuffle)
 345                     {
 346                         start_index = playlist_shuffle(seed, start_index);
 347
 348                         /* when shuffling dir.: play all files
 349                            even if the file selected by user is
 350                            not the first one */
 351                         if (!global_settings.play_selected)
 352                             start_index = 0;
 353                     }
 354
 355                     playlist_start(start_index, 0);
 356                     play = true;
 357                 }
 358                 break;
 359
 360                 /* wps config file */
 361             case TREE_ATTR_WPS:
 362                 wps_load(buf,true);
 363                 set_file(buf, global_settings.wps_file,
 364                          MAX_FILENAME);
 365                 break;
 366
 367             case TREE_ATTR_CFG:
 368                 if (!settings_load_config(buf))
 369                     break;
 370                 lcd_clear_display();
 371                 lcd_puts(0,0,str(LANG_SETTINGS_LOADED1));
 372                 lcd_puts(0,1,str(LANG_SETTINGS_LOADED2));
 373 #ifdef HAVE_LCD_BITMAP
 374                 lcd_update();
 375 #endif
 376                 sleep(HZ/2);
 377                 break;
 378
 379             case TREE_ATTR_BMARK:
 380                 bookmark_load(buf, false);
 381                 reload_dir = true;
 382                 break;
 383
 384             case TREE_ATTR_LNG:
 385                 if(!lang_load(buf)) {
 386                     extern bool language_changed; /* from settings_menu.c */
 387
 388                     set_file(buf, global_settings.lang_file,
 389                              MAX_FILENAME);
 390                     talk_init(); /* use voice of same language */
 391                     splash(HZ, true, str(LANG_LANGUAGE_LOADED));
 392                     language_changed = true;
 393                 }
 394                 break;
 395
 396 #ifdef HAVE_LCD_BITMAP
 397             case TREE_ATTR_FONT:
 398                 font_load(buf);
 399                 set_file(buf, global_settings.font_file, MAX_FILENAME);
 400                 break;
 401 #endif
 402
 403 #ifndef SIMULATOR
 404                 /* firmware file */
 405             case TREE_ATTR_MOD:
 406                 rolo_load(buf);
 407                 break;
 408 #endif
 409
 410                 /* plugin file */
 411             case TREE_ATTR_ROCK:
 412                 if (plugin_load(buf,NULL) == PLUGIN_USB_CONNECTED)
 413                 {
 414                     if(*c->dirfilter > NUM_FILTER_MODES)
 415                         /* leave sub-browsers after usb, doing
 416                            otherwise might be confusing to the user */
 417                         exit_func = true;
 418                     else
 419                         reload_root = true;
 420                 }
 421                 break;
 422
 423             default:
 424             {
 425                 char* plugin = filetype_get_plugin(file);
 426                 if (plugin)
 427                 {
 428                     if (plugin_load(plugin,buf) == PLUGIN_USB_CONNECTED)
 429                         reload_root = true;
 430                 }
 431                 break;
 432             }
 433         }
 434
 435         if ( play ) {
 436             if ( global_settings.resume ) {
 437                 /* the resume_index must always be the index in the
 438                    shuffled list in case shuffle is enabled */
 439                 global_settings.resume_index = start_index;
 440                 global_settings.resume_offset = 0;
 441                 settings_save();
 442             }
 443
 444             start_wps = true;
 445         }
 446         else {
 447             if (*c->dirfilter > NUM_FILTER_MODES &&
 448                 *c->dirfilter != SHOW_FONT &&
 449                 *c->dirfilter != SHOW_PLUGINS)
 450             {
 451                 exit_func = true;
 452             }
 453         }
 454     }
 455
 456     if (reload_dir)
 457         rc = 1;
 458     if (reload_root)
 459         rc = 2;
 460     if (start_wps)
 461         rc = 3;
 462     if (exit_func)
 463         rc = 4;
 464
 465     return rc;
 466 }
 467
 468 int ft_exit(struct tree_context* c)
 469 {
 470     extern char lastfile[]; /* from tree.c */
 471     char buf[MAX_PATH];
 472     int rc = 0;
 473     bool exit_func = false;
 474
 475     int i = strlen(c->currdir);
 476     if (i>1) {
 477         while (c->currdir[i-1]!='/')
 478             i--;
 479         strcpy(buf,&c->currdir[i]);
 480         if (i==1)
 481             c->currdir[i]=0;
 482         else
 483             c->currdir[i-1]=0;
 484
 485         if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
 486             exit_func = true;
 487
 488         c->dirlevel--;
 489         if ( c->dirlevel < MAX_DIR_LEVELS ) {
 490             c->dirstart = c->dirpos[c->dirlevel];
 491             c->dircursor = c->cursorpos[c->dirlevel];
 492         }
 493         else
 494             c->dirstart = c->dircursor = 0;
 495
 496         if (c->dirstart == -1)
 497             strcpy(lastfile, buf);
 498     }
 499     else
 500     {
 501         if (*c->dirfilter > NUM_FILTER_MODES && c->dirlevel < 1)
 502             exit_func = true;
 503     }
 504
 505     if (exit_func)
 506         rc = 4;
 507
 508     return rc;
 509 }