apps/tree.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Daniel 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 <stdio.h>
  20 #include <string.h>
  21 #include <stdlib.h>
  22 #include <stdbool.h>
  23
  24 #include "applimits.h"
  25 #include "dir.h"
  26 #include "file.h"
  27 #include "lcd.h"
  28 #include "font.h"
  29 #include "backlight.h"
  30 #include "button.h"
  31 #include "kernel.h"
  32 #include "usb.h"
  33 #include "tree.h"
  34 #include "sprintf.h"
  35 #include "audio.h"
  36 #include "playlist.h"
  37 #include "menu.h"
  38 #include "gwps.h"
  39 #include "settings.h"
  40 #include "status.h"
  41 #include "debug.h"
  42 #include "ata.h"
  43 #include "rolo.h"
  44 #include "icons.h"
  45 #include "lang.h"
  46 #include "language.h"
  47 #include "screens.h"
  48 #include "keyboard.h"
  49 #include "bookmark.h"
  50 #include "onplay.h"
  51 #include "buffer.h"
  52 #include "plugin.h"
  53 #include "power.h"
  54 #include "action.h"
  55 #include "talk.h"
  56 #include "filetypes.h"
  57 #include "misc.h"
  58 #include "filetree.h"
  59 #include "tagtree.h"
  60 #ifdef HAVE_RECORDING
  61 #include "recorder/recording.h"
  62 #endif
  63 #include "rtc.h"
  64 #include "dircache.h"
  65 #ifdef HAVE_TAGCACHE
  66 #include "tagcache.h"
  67 #endif
  68 #include "yesno.h"
  69 #include "gwps-common.h"
  70 #include "eeprom_settings.h"
  71 #include "scrobbler.h"
  72
  73 /* gui api */
  74 #include "list.h"
  75 #include "statusbar.h"
  76 #include "splash.h"
  77 #include "buttonbar.h"
  78 #include "textarea.h"
  79 #include "action.h"
  80
  81 #include "root_menu.h"
  82
  83 #if (LCD_DEPTH > 1) || (defined(HAVE_LCD_REMOTE) && (LCD_REMOTE_DEPTH > 1))
  84 #include "backdrop.h"
  85 #endif
  86
  87 static const struct filetype *filetypes;
  88 static int filetypes_count;
  89
  90 struct gui_synclist tree_lists;
  91
  92 /* I put it here because other files doesn't use it yet,
  93  * but should be elsewhere since it will be used mostly everywhere */
  94 #ifdef HAS_BUTTONBAR
  95 struct gui_buttonbar tree_buttonbar;
  96 #endif
  97 static struct tree_context tc;
  98
  99 bool boot_changed = false;
 100
 101 char lastfile[MAX_PATH];
 102 static char lastdir[MAX_PATH];
 103 #ifdef HAVE_TAGCACHE
 104 static int lasttable, lastextra, lastfirstpos;
 105 #endif
 106 static int max_files = 0;
 107
 108 static bool reload_dir = false;
 109
 110 static bool start_wps = false;
 111 static int curr_context = false;/* id3db or tree*/
 112
 113 static int dirbrowse(void);
 114 static int ft_play_filenumber(int pos, int attr);
 115 static int ft_play_dirname(char* name);
 116 static void ft_play_filename(char *dir, char *file);
 117
 118 /*
 119  * removes the extension of filename (if it doesn't start with a .)
 120  * puts the result in buffer
 121  */
 122 static char * strip_extension(char * filename, char * buffer)
 123 {
 124     int dotpos;
 125     char * dot=strrchr(filename, '.');
 126     if(dot!=0 && filename[0]!='.')
 127     {
 128         dotpos = dot-filename;
 129         strncpy(buffer, filename, dotpos);
 130         buffer[dotpos]='\0';
 131         return(buffer);
 132     }
 133     else
 134         return(filename);
 135 }
 136
 137 static char * tree_get_filename(int selected_item, void * data, char *buffer)
 138 {
 139     struct tree_context * local_tc=(struct tree_context *)data;
 140     char *name;
 141     int attr=0;
 142 #ifdef HAVE_TAGCACHE
 143     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 144
 145     if (id3db)
 146     {
 147         return tagtree_get_entry(&tc, selected_item)->name;
 148     }
 149     else
 150 #endif
 151     {
 152         struct entry* dc = local_tc->dircache;
 153         struct entry* e = &dc[selected_item];
 154         name = e->name;
 155         attr = e->attr;
 156     }
 157     /* if any file filter is on, and if it's not a directory,
 158      * strip the extension */
 159
 160     if ( (*(local_tc->dirfilter) != SHOW_ID3DB) && !(attr & ATTR_DIRECTORY)
 161         && (*(local_tc->dirfilter) != SHOW_ALL) )
 162     {
 163         return(strip_extension(name, buffer));
 164     }
 165     return(name);
 166 }
 167
 168
 169 static int tree_get_fileicon(int selected_item, void * data)
 170 {
 171     struct tree_context * local_tc=(struct tree_context *)data;
 172 #ifdef HAVE_TAGCACHE
 173     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 174     if (id3db) {
 175         return tagtree_get_icon(&tc);
 176     }
 177     else
 178 #endif
 179         {
 180         struct entry* dc = local_tc->dircache;
 181         struct entry* e = &dc[selected_item];
 182         return filetype_get_icon(e->attr);
 183     }
 184 }
 185
 186 bool check_rockboxdir(void)
 187 {
 188     DIR *dir = opendir(ROCKBOX_DIR);
 189     if(!dir)
 190     {   /* No need to localise this message.
 191            If .rockbox is missing, it wouldn't work anyway */
 192         int i;
 193         FOR_NB_SCREENS(i)
 194             screens[i].clear_display();
 195         gui_syncsplash(HZ*2, "No .rockbox directory");
 196         FOR_NB_SCREENS(i)
 197             screens[i].clear_display();
 198         gui_syncsplash(HZ*2, "Installation incomplete");
 199         return false;
 200     }
 201     closedir(dir);
 202     return true;
 203 }
 204
 205 void browse_root(void)
 206 {
 207     gui_sync_wps_screen_init();
 208
 209     check_rockboxdir();
 210
 211     strcpy(tc.currdir, "/");
 212
 213 #ifdef HAVE_LCD_CHARCELLS
 214     int i;
 215     FOR_NB_SCREENS(i)
 216         screens[i].double_height(false);
 217 #endif
 218 #ifdef HAS_BUTTONBAR
 219     gui_buttonbar_init(&tree_buttonbar);
 220     /* since archos only have one screen, no need to create more than that */
 221     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 222 #endif
 223     gui_synclist_init(&tree_lists, &tree_get_filename, &tc, false, 1);
 224     gui_synclist_set_icon_callback(&tree_lists, &tree_get_fileicon);
 225     /* not the best place for this call... but... */
 226     root_menu();
 227 }
 228
 229
 230
 231 struct tree_context* tree_get_context(void)
 232 {
 233     return &tc;
 234 }
 235
 236 /* talkbox hovering delay, to avoid immediate disk activity */
 237 #define HOVER_DELAY (HZ/2)
 238 /*
 239  * Returns the position of a given file in the current directory
 240  * returns -1 if not found
 241  */
 242 static int tree_get_file_position(char * filename)
 243 {
 244     int i;
 245
 246     /* use lastfile to determine the selected item (default=0) */
 247     for (i=0; i < tc.filesindir; i++)
 248     {
 249         struct entry* dc = tc.dircache;
 250         struct entry* e = &dc[i];
 251         if (!strcasecmp(e->name, filename))
 252             return(i);
 253     }
 254     return(-1);/* no file can match, returns undefined */
 255 }
 256
 257 /*
 258  * Called when a new dir is loaded (for example when returning from other apps ...)
 259  * also completely redraws the tree
 260  */
 261 static int update_dir(void)
 262 {
 263   bool changed = false;
 264 #ifdef HAVE_TAGCACHE
 265     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 266     /* Checks for changes */
 267     if (id3db) {
 268         if (tc.currtable != lasttable ||
 269             tc.currextra != lastextra ||
 270             tc.firstpos  != lastfirstpos ||
 271             reload_dir)
 272         {
 273             if (tagtree_load(&tc) < 0)
 274                 return -1;
 275
 276             lasttable = tc.currtable;
 277             lastextra = tc.currextra;
 278             lastfirstpos = tc.firstpos;
 279             changed = true;
 280         }
 281     }
 282     else
 283 #endif
 284         {
 285         /* if the tc.currdir has been changed, reload it ...*/
 286         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir) {
 287
 288             if (ft_load(&tc, NULL) < 0)
 289                 return -1;
 290             strcpy(lastdir, tc.currdir);
 291             changed = true;
 292         }
 293     }
 294     /* if selected item is undefined */
 295     if (tc.selected_item == -1)
 296     {
 297         /* use lastfile to determine the selected item */
 298         tc.selected_item = tree_get_file_position(lastfile);
 299
 300         /* If the file doesn't exists, select the first one (default) */
 301         if(tc.selected_item < 0)
 302             tc.selected_item = 0;
 303         changed = true;
 304     }
 305     if (changed)
 306     {
 307         if(
 308 #ifdef HAVE_TAGCACHE
 309         !id3db &&
 310 #endif
 311         (tc.dirfull ||
 312                       tc.filesindir == global_settings.max_files_in_dir) )
 313         {
 314             gui_syncsplash(HZ, str(LANG_SHOWDIR_BUFFER_FULL));
 315         }
 316     }
 317 #ifdef HAVE_TAGCACHE
 318     if (id3db)
 319     {
 320         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 321             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 322         {
 323             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 324                 filetype_get_icon(ATTR_DIRECTORY));
 325         }
 326         else
 327         {
 328             /* Must clear the title as the list is reused */
 329             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 330         }
 331     }
 332     else
 333 #endif
 334     {
 335         if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 336         {
 337             gui_synclist_set_title(&tree_lists, tc.currdir,
 338                 filetype_get_icon(ATTR_DIRECTORY));
 339         }
 340         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 341         {
 342             char *title = strrchr(tc.currdir, '/') + 1;
 343             if (*title == '\0')
 344             {
 345                 /* Display "Files" for the root dir */
 346                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 347                     filetype_get_icon(ATTR_DIRECTORY));
 348             }
 349             else
 350                 gui_synclist_set_title(&tree_lists, title,
 351                     filetype_get_icon(ATTR_DIRECTORY));
 352         }
 353         else
 354         {
 355             /* Must clear the title as the list is reused */
 356             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 357         }
 358     }
 359
 360     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 361     gui_synclist_set_icon_callback(&tree_lists, tree_get_fileicon);
 362     if( tc.selected_item >= tc.filesindir)
 363         tc.selected_item=tc.filesindir-1;
 364
 365     gui_synclist_select_item(&tree_lists, tc.selected_item);
 366 #ifdef HAS_BUTTONBAR
 367     if (global_settings.buttonbar) {
 368         if (*tc.dirfilter < NUM_FILTER_MODES)
 369             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 370                           str(LANG_SYSFONT_DIRBROWSE_F2),
 371                           str(LANG_SYSFONT_DIRBROWSE_F3));
 372         else
 373             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 374         gui_buttonbar_draw(&tree_buttonbar);
 375     }
 376 #endif
 377     gui_synclist_draw(&tree_lists);
 378     gui_syncstatusbar_draw(&statusbars, true);
 379     return tc.filesindir;
 380 }
 381
 382 /* load tracks from specified directory to resume play */
 383 void resume_directory(const char *dir)
 384 {
 385 #ifdef HAVE_TAGCACHE
 386     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 387 #endif
 388
 389     if (ft_load(&tc, dir) < 0)
 390         return;
 391     lastdir[0] = 0;
 392
 393     ft_build_playlist(&tc, 0);
 394
 395 #ifdef HAVE_TAGCACHE
 396     if (id3db)
 397         tagtree_load(&tc);
 398 #endif
 399 }
 400
 401 /* Returns the current working directory and also writes cwd to buf if
 402    non-NULL.  In case of error, returns NULL. */
 403 char *getcwd(char *buf, int size)
 404 {
 405     if (!buf)
 406         return tc.currdir;
 407     else if (size > 0)
 408     {
 409         strncpy(buf, tc.currdir, size);
 410         return buf;
 411     }
 412     else
 413         return NULL;
 414 }
 415
 416 /* Force a reload of the directory next time directory browser is called */
 417 void reload_directory(void)
 418 {
 419     reload_dir = true;
 420 }
 421
 422 void get_current_file(char* buffer, int buffer_len)
 423 {
 424 #ifdef HAVE_TAGCACHE
 425     /* in ID3DB mode it is a bad idea to call this function */
 426     /* (only happens with `follow playlist') */
 427     if( *tc.dirfilter == SHOW_ID3DB )
 428         return;
 429 #endif
 430
 431     struct entry* dc = tc.dircache;
 432     struct entry* e = &dc[tc.selected_item];
 433     snprintf(buffer, buffer_len, "%s/%s", getcwd(NULL,0),
 434                                           tc.dirlength ? e->name : "");
 435 }
 436
 437 /* Selects a file and update tree context properly */
 438 static void set_current_file(char *path)
 439 {
 440     char *name;
 441     int i;
 442
 443 #ifdef HAVE_TAGCACHE
 444     /* in ID3DB mode it is a bad idea to call this function */
 445     /* (only happens with `follow playlist') */
 446     if( *tc.dirfilter == SHOW_ID3DB )
 447         return;
 448 #endif
 449
 450     /* separate directory from filename */
 451     /* gets the directory's name and put it into tc.currdir */
 452     name = strrchr(path+1,'/');
 453     if (name)
 454     {
 455         *name = 0;
 456         strcpy(tc.currdir, path);
 457         *name = '/';
 458         name++;
 459     }
 460     else
 461     {
 462         strcpy(tc.currdir, "/");
 463         name = path+1;
 464     }
 465
 466     strcpy(lastfile, name);
 467
 468
 469     /* If we changed dir we must recalculate the dirlevel
 470        and adjust the selected history properly */
 471     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 472     {
 473         tc.dirlevel =  0;
 474         tc.selected_item_history[tc.dirlevel] = -1;
 475
 476         /* use '/' to calculate dirlevel */
 477         for (i = 1; path[i] != '\0'; i++)
 478         {
 479             if (path[i] == '/')
 480             {
 481                 tc.dirlevel++;
 482                 tc.selected_item_history[tc.dirlevel] = -1;
 483             }
 484         }
 485     }
 486     if (ft_load(&tc, NULL) >= 0)
 487     {
 488         tc.selected_item = tree_get_file_position(lastfile);
 489     }
 490 }
 491
 492
 493 /* main loop, handles key events */
 494 static int dirbrowse()
 495 {
 496     int numentries=0;
 497     char buf[MAX_PATH];
 498     int lasti = -1;
 499     unsigned button, returned_button;
 500     bool reload_root = false;
 501     int lastfilter = *tc.dirfilter;
 502     bool lastsortcase = global_settings.sort_case;
 503     bool need_update = true;
 504     bool exit_func = false;
 505     long thumbnail_time = -1; /* for delaying a thumbnail */
 506     long last_cancel = 0;
 507
 508     char* currdir = tc.currdir; /* just a shortcut */
 509 #ifdef HAVE_TAGCACHE
 510     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 511
 512     if (id3db)
 513         curr_context=CONTEXT_ID3DB;
 514     else
 515 #endif
 516         curr_context=CONTEXT_TREE;
 517     if (tc.selected_item < 0)
 518         tc.selected_item = 0;
 519 #ifdef HAVE_TAGCACHE
 520     tc.firstpos=0;
 521     lasttable = -1;
 522     lastextra = -1;
 523     lastfirstpos = 0;
 524 #endif
 525
 526     start_wps = false;
 527     numentries = update_dir();
 528     if (numentries == -1)
 529         return false;  /* currdir is not a directory */
 530
 531     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 532     {
 533         gui_syncsplash(HZ*2, str(LANG_NO_FILES));
 534         return false;  /* No files found for rockbox_browser() */
 535     }
 536
 537     while(1) {
 538         struct entry *dircache = tc.dircache;
 539         bool restore = false;
 540         if (tc.dirlevel < 0)
 541           tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 542 #ifdef BOOTFILE
 543         if (boot_changed) {
 544             char *lines[]={str(LANG_BOOT_CHANGED), str(LANG_REBOOT_NOW)};
 545             struct text_message message={lines, 2};
 546             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 547                 rolo_load("/" BOOTFILE);
 548             restore = true;
 549             boot_changed = false;
 550         }
 551 #endif
 552         button = get_action(CONTEXT_TREE,HZ/5);
 553         returned_button = gui_synclist_do_button(&tree_lists, button,LIST_WRAP_UNLESS_HELD);
 554         if (returned_button)
 555             need_update = true;
 556         if (returned_button == ACTION_STD_CANCEL)
 557             button = ACTION_STD_CANCEL;
 558
 559         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 560         switch ( button ) {
 561             case ACTION_STD_OK:
 562                 /* nothing to do if no files to display */
 563                 if ( numentries == 0 )
 564                     break;
 565
 566 #ifdef HAVE_TAGCACHE
 567                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 568 #else
 569                 switch (ft_enter(&tc))
 570 #endif
 571                 {
 572                     case 1: reload_dir = true; break;
 573                     case 2: start_wps = true; break;
 574                     case 3: exit_func = true; break;
 575                     default: break;
 576                 }
 577                 restore = true;
 578                 break;
 579
 580             case ACTION_STD_CANCEL:
 581                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 582                     exit_func = true;
 583                     break;
 584                 }
 585                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 586                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 587                 {
 588                     if (last_cancel && TIME_BEFORE(current_tick, last_cancel+HZ/2))
 589                     {
 590                         last_cancel = 0;
 591                         action_signalscreenchange(); /* eat the cancel presses */
 592                         break;
 593                     }
 594                     else
 595                         return GO_TO_ROOT;
 596                 }
 597                 last_cancel = current_tick;
 598
 599 #ifdef HAVE_TAGCACHE
 600                 if (id3db)
 601                     tagtree_exit(&tc);
 602                 else
 603 #endif
 604                     if (ft_exit(&tc) == 3)
 605                         exit_func = true;
 606
 607                 restore = true;
 608                 break;
 609
 610             case ACTION_TREE_STOP:
 611                 if (list_stop_handler())
 612                     restore = true;
 613                 break;
 614
 615             case ACTION_STD_MENU:
 616                 return GO_TO_ROOT;
 617                 break;
 618
 619             case ACTION_TREE_WPS:
 620                 return GO_TO_PREVIOUS_MUSIC;
 621                 break;
 622 #ifdef HAVE_QUICKSCREEN
 623             case ACTION_STD_QUICKSCREEN:
 624                 /* don't enter f2 from plugin browser */
 625                 if (*tc.dirfilter < NUM_FILTER_MODES)
 626                 {
 627                     if (quick_screen_quick(button))
 628                         reload_dir = true;
 629                     restore = true;
 630                 }
 631                 break;
 632 #endif
 633 #ifdef BUTTON_F3
 634             case ACTION_F3:
 635                 /* don't enter f3 from plugin browser */
 636                 if (*tc.dirfilter < NUM_FILTER_MODES)
 637                 {
 638                     if (quick_screen_f3(BUTTON_F3))
 639                         reload_dir = true;
 640                     restore = true;
 641                 }
 642                 break;
 643 #endif
 644
 645             case ACTION_STD_CONTEXT:
 646             {
 647                 int onplay_result;
 648                 int attr = 0;
 649
 650                 if(!numentries)
 651                     onplay_result = onplay(NULL, 0, curr_context);
 652                 else {
 653 #ifdef HAVE_TAGCACHE
 654                     if (id3db)
 655                     {
 656                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 657                         {
 658                             attr = FILE_ATTR_AUDIO;
 659                             tagtree_get_filename(&tc, buf, sizeof(buf));
 660                         }
 661                         else
 662                             attr = ATTR_DIRECTORY;
 663                     }
 664                     else
 665 #endif
 666                     {
 667                         attr = dircache[tc.selected_item].attr;
 668
 669                         if (currdir[1]) /* Not in / */
 670                             snprintf(buf, sizeof buf, "%s/%s",
 671                                      currdir,
 672                                      dircache[tc.selected_item].name);
 673                         else /* In / */
 674                             snprintf(buf, sizeof buf, "/%s",
 675                                      dircache[tc.selected_item].name);
 676                     }
 677                     onplay_result = onplay(buf, attr, curr_context);
 678                 }
 679                 switch (onplay_result)
 680                 {
 681                     case ONPLAY_MAINMENU:
 682                         return GO_TO_ROOT;
 683
 684                     case ONPLAY_OK:
 685                         restore = true;
 686                         break;
 687
 688                     case ONPLAY_RELOAD_DIR:
 689                         reload_dir = true;
 690                         break;
 691
 692                     case ONPLAY_START_PLAY:
 693                         return GO_TO_WPS;
 694                         break;
 695                 }
 696                 break;
 697             }
 698
 699             case ACTION_NONE:
 700                 if (thumbnail_time != -1 &&
 701                     TIME_AFTER(current_tick, thumbnail_time))
 702                 {   /* a delayed hovering thumbnail is due now */
 703                     int res;
 704                     int attr;
 705                     char* name;
 706
 707 #ifdef HAVE_TAGCACHE
 708                     if (id3db)
 709                     {
 710                         attr = tagtree_get_attr(&tc);
 711                         name = tagtree_get_entry(&tc, lasti)->name;
 712                     }
 713                     else
 714 #endif
 715                     {
 716                         attr = dircache[lasti].attr;
 717                         name = dircache[lasti].name;
 718                     }
 719
 720                     if (attr & ATTR_DIRECTORY)
 721                     {
 722                         DEBUGF("Playing directory thumbnail: %s", currdir);
 723                         res = ft_play_dirname(name);
 724                         if (res < 0) /* failed, not existing */
 725                         {   /* say the number instead, as a fallback */
 726                             talk_id(VOICE_DIR, false);
 727                             talk_number(lasti+1, true);
 728                         }
 729                     }
 730                     else
 731                     {
 732                         DEBUGF("Playing file thumbnail: %s/%s%s\n",
 733                                currdir, name,
 734                                file_thumbnail_ext);
 735                         /* no fallback necessary, we knew in advance
 736                            that the file exists */
 737                         ft_play_filename(currdir, name);
 738                     }
 739                     thumbnail_time = -1; /* job done */
 740                 }
 741                 gui_syncstatusbar_draw(&statusbars, false);
 742                 break;
 743
 744 #ifdef HAVE_HOTSWAP
 745             case SYS_FS_CHANGED:
 746 #ifdef HAVE_TAGCACHE
 747                 if (!id3db)
 748 #endif
 749                     reload_dir = true;
 750                 /* The 'dir no longer valid' situation will be caught later
 751                  * by checking the showdir() result. */
 752                 break;
 753 #endif
 754
 755             default:
 756                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 757                 {
 758                     if(*tc.dirfilter > NUM_FILTER_MODES)
 759                         /* leave sub-browsers after usb, doing otherwise
 760                            might be confusing to the user */
 761                         exit_func = true;
 762                     else
 763                         reload_dir = true;
 764                 }
 765                 break;
 766         }
 767         if (start_wps)
 768             return GO_TO_WPS;
 769         if ( button )
 770         {
 771             ata_spin();
 772         }
 773
 774
 775     check_rescan:
 776         /* do we need to rescan dir? */
 777         if (reload_dir || reload_root ||
 778             lastfilter != *tc.dirfilter ||
 779             lastsortcase != global_settings.sort_case)
 780         {
 781             if ( reload_root ) {
 782                 strcpy(currdir, "/");
 783                 tc.dirlevel = 0;
 784 #ifdef HAVE_TAGCACHE
 785                 tc.currtable = 0;
 786                 tc.currextra = 0;
 787                 lasttable = -1;
 788                 lastextra = -1;
 789 #endif
 790                 reload_root = false;
 791             }
 792
 793             if (! reload_dir )
 794             {
 795                 gui_synclist_select_item(&tree_lists, 0);
 796                 gui_synclist_draw(&tree_lists);
 797                 tc.selected_item = 0;
 798                 lastdir[0] = 0;
 799             }
 800
 801             lastfilter = *tc.dirfilter;
 802             lastsortcase = global_settings.sort_case;
 803             restore = true;
 804         }
 805
 806         if (exit_func)
 807             return GO_TO_PREVIOUS;
 808
 809         if (restore || reload_dir) {
 810             /* restore display */
 811             numentries = update_dir();
 812             if (currdir[1] && (numentries < 0))
 813             {   /* not in root and reload failed */
 814                 reload_root = true; /* try root */
 815                 reload_dir = false;
 816                 goto check_rescan;
 817             }
 818             need_update = true;
 819             reload_dir = false;
 820         }
 821
 822         if(need_update) {
 823             need_update=false;
 824             if ( numentries > 0 ) {
 825                 /* Voice the file if changed */
 826                 if(lasti != tc.selected_item || restore) {
 827                     int attr;
 828                     char* name;
 829
 830                     lasti = tc.selected_item;
 831                     thumbnail_time = -1; /* Cancel whatever we were
 832                                             about to say */
 833
 834 #ifdef HAVE_TAGCACHE
 835                     if (id3db)
 836                     {
 837                         attr = tagtree_get_attr(&tc);
 838                         name = tagtree_get_entry(&tc, tc.selected_item)->name;
 839                     }
 840                     else
 841 #endif
 842                     {
 843                         attr = dircache[tc.selected_item].attr;
 844                         name = dircache[tc.selected_item].name;
 845                     }
 846
 847                     /* Directory? */
 848                     if (attr & ATTR_DIRECTORY)
 849                     {
 850                         /* play directory thumbnail */
 851                         switch (global_settings.talk_dir) {
 852                             case 1: /* dirs as numbers */
 853                                 talk_id(VOICE_DIR, false);
 854                                 talk_number(tc.selected_item+1, true);
 855                                 break;
 856
 857                             case 2: /* dirs spelled */
 858                                 talk_spell(name, false);
 859                                 break;
 860
 861                             case 3: /* thumbnail clip */
 862                                 /* "schedule" a thumbnail, to have a little
 863                                    delay */
 864                                 thumbnail_time = current_tick + HOVER_DELAY;
 865                                 break;
 866
 867                             default:
 868                                 break;
 869                         }
 870                     }
 871                     else /* file */
 872                     {
 873                         switch (global_settings.talk_file) {
 874                             case 1: /* files as numbers */
 875                                 ft_play_filenumber(
 876                                     tc.selected_item-tc.dirsindir+1,
 877                                     attr & FILE_ATTR_MASK);
 878                                 break;
 879
 880                             case 2: /* files spelled */
 881                                 talk_spell(name, false);
 882                                 break;
 883
 884                             case 3: /* thumbnail clip */
 885                                 /* "schedule" a thumbnail, to have a little
 886                                    delay */
 887                                 if (attr & FILE_ATTR_THUMBNAIL)
 888                                     thumbnail_time = current_tick + HOVER_DELAY;
 889                                 else
 890                                     /* spell the number as fallback */
 891                                     talk_spell(name, false);
 892                                 break;
 893
 894                             default:
 895                                 break;
 896                         }
 897                     }
 898                 }
 899             }
 900         }
 901     }
 902     action_signalscreenchange();
 903     return true;
 904 }
 905
 906 static int plsize = 0;
 907 static long pltick;
 908 static bool add_dir(char* dirname, int len, int fd)
 909 {
 910     bool abort = false;
 911     DIRCACHED* dir;
 912
 913     /* check for user abort */
 914     if (action_userabort(TIMEOUT_NOBLOCK))
 915         return true;
 916
 917     dir = opendir_cached(dirname);
 918     if(!dir)
 919         return true;
 920
 921     while (true) {
 922         struct dircache_entry *entry;
 923
 924         entry = readdir_cached(dir);
 925         if (!entry)
 926             break;
 927         if (entry->attribute & ATTR_DIRECTORY) {
 928             int dirlen = strlen(dirname);
 929             bool result;
 930
 931             if (!strcmp((char *)entry->d_name, ".") ||
 932                 !strcmp((char *)entry->d_name, ".."))
 933                 continue;
 934
 935             if (dirname[1])
 936                 snprintf(dirname+dirlen, len-dirlen, "/%s", entry->d_name);
 937             else
 938                 snprintf(dirname, len, "/%s", entry->d_name);
 939
 940             result = add_dir(dirname, len, fd);
 941             dirname[dirlen] = '\0';
 942             if (result) {
 943                 abort = true;
 944                 break;
 945             }
 946         }
 947         else {
 948             int x = strlen((char *)entry->d_name);
 949             int i;
 950             char *cp = strrchr((char *)entry->d_name,'.');
 951
 952             if (cp) {
 953                 cp++;
 954
 955                 /* add all supported audio files to playlists */
 956                 for (i=0; i < filetypes_count; i++) {
 957                     if (filetypes[i].tree_attr == FILE_ATTR_AUDIO) {
 958                         if (!strcasecmp(cp, filetypes[i].extension)) {
 959                             char buf[8];
 960                             int i;
 961                             write(fd, dirname, strlen(dirname));
 962                             write(fd, "/", 1);
 963                             write(fd, entry->d_name, x);
 964                             write(fd, "\n", 1);
 965
 966                             plsize++;
 967                             if(TIME_AFTER(current_tick, pltick+HZ/4)) {
 968                                 pltick = current_tick;
 969
 970                                 snprintf(buf, sizeof buf, "%d", plsize);
 971 #ifdef HAVE_LCD_BITMAP
 972                                 FOR_NB_SCREENS(i)
 973                                 {
 974                                     screens[i].puts(0, 4, (unsigned char *)buf);
 975                                     gui_textarea_update(&screens[i]);
 976                                 }
 977 #else
 978                                 x = 10;
 979                                 if (plsize > 999)
 980                                     x=7;
 981                                 else {
 982                                     if (plsize > 99)
 983                                         x=8;
 984                                     else {
 985                                         if (plsize > 9)
 986                                             x=9;
 987                                     }
 988                                 }
 989                                 FOR_NB_SCREENS(i) {
 990                                     screens[i].puts(x,0,buf);
 991                                 }
 992 #endif
 993                             }
 994                             break;
 995                         }
 996                     }
 997                 }
 998             }
 999         }
1000     }
1001     closedir_cached(dir);
1002
1003     return abort;
1004 }
1005
1006 bool create_playlist(void)
1007 {
1008     int fd;
1009     int i;
1010     char filename[MAX_PATH];
1011
1012     pltick = current_tick;
1013
1014     snprintf(filename, sizeof filename, "%s.m3u8",
1015              tc.currdir[1] ? tc.currdir : "/root");
1016     FOR_NB_SCREENS(i)
1017     {
1018         gui_textarea_clear(&screens[i]);
1019         screens[i].puts(0, 0, str(LANG_CREATING));
1020         screens[i].puts_scroll(0, 1, (unsigned char *)filename);
1021 #if defined(HAVE_LCD_BITMAP) || defined(SIMULATOR)
1022         gui_textarea_update(&screens[i]);
1023 #endif
1024     }
1025     fd = creat(filename);
1026     if (fd < 0)
1027         return false;
1028
1029     trigger_cpu_boost();
1030
1031     snprintf(filename, sizeof(filename), "%s",
1032              tc.currdir[1] ? tc.currdir : "/");
1033     plsize = 0;
1034     add_dir(filename, sizeof(filename), fd);
1035     close(fd);
1036
1037     sleep(HZ);
1038
1039     return true;
1040 }
1041
1042 int rockbox_browse(const char *root, int dirfilter)
1043 {
1044     int ret_val = 0;
1045     int *last_filter = tc.dirfilter;
1046     tc.dirfilter = &dirfilter;
1047
1048     reload_dir = true;
1049     if (dirfilter >= NUM_FILTER_MODES)
1050     {
1051         static struct tree_context backup;
1052         int last_context;
1053
1054         backup = tc;
1055         tc.selected_item = 0;
1056         tc.dirlevel = 0;
1057         memcpy(tc.currdir, root, sizeof(tc.currdir));
1058         start_wps = false;
1059         last_context = curr_context;
1060
1061         ret_val = dirbrowse();
1062         tc = backup;
1063         curr_context = last_context;
1064     }
1065     else
1066     {
1067         static char buf[MAX_PATH];
1068         if (dirfilter != SHOW_ID3DB)
1069             tc.dirfilter = &global_settings.dirfilter;
1070         strcpy(buf,root);
1071         set_current_file(buf);
1072         ret_val = dirbrowse();
1073     }
1074     tc.dirfilter = last_filter;
1075     return ret_val;
1076 }
1077
1078 void tree_init(void)
1079 {
1080     /* We copy the settings value in case it is changed by the user. We can't
1081        use it until the next reboot. */
1082     max_files = global_settings.max_files_in_dir;
1083
1084     /* initialize tree context struct */
1085     memset(&tc, 0, sizeof(tc));
1086     tc.dirfilter = &global_settings.dirfilter;
1087
1088     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
1089     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
1090
1091     tc.dircache_size = max_files * sizeof(struct entry);
1092     tc.dircache = buffer_alloc(tc.dircache_size);
1093     tree_get_filetypes(&filetypes, &filetypes_count);
1094 }
1095
1096 void bookmark_play(char *resume_file, int index, int offset, int seed,
1097                    char *filename)
1098 {
1099     int i;
1100     char* suffix = strrchr(resume_file, '.');
1101
1102     if (suffix != NULL &&
1103         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
1104     {
1105         /* Playlist playback */
1106         char* slash;
1107         /* check that the file exists */
1108         int fd = open(resume_file, O_RDONLY);
1109         if(fd<0)
1110             return;
1111         close(fd);
1112
1113         slash = strrchr(resume_file,'/');
1114         if (slash)
1115         {
1116             char* cp;
1117             *slash=0;
1118
1119             cp=resume_file;
1120             if (!cp[0])
1121                 cp="/";
1122
1123             if (playlist_create(cp, slash+1) != -1)
1124             {
1125                 if (global_settings.playlist_shuffle)
1126                     playlist_shuffle(seed, -1);
1127                 playlist_start(index,offset);
1128             }
1129             *slash='/';
1130         }
1131     }
1132     else
1133     {
1134         /* Directory playback */
1135         lastdir[0]='\0';
1136         if (playlist_create(resume_file, NULL) != -1)
1137         {
1138             char* peek_filename;
1139             resume_directory(resume_file);
1140             if (global_settings.playlist_shuffle)
1141                 playlist_shuffle(seed, -1);
1142
1143             /* Check if the file is at the same spot in the directory,
1144                else search for it */
1145             peek_filename = playlist_peek(index);
1146
1147             if (peek_filename == NULL)
1148                 return;
1149
1150             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1151             {
1152                 for ( i=0; i < playlist_amount(); i++ )
1153                 {
1154                     peek_filename = playlist_peek(i);
1155
1156                     if (peek_filename == NULL)
1157                         return;
1158
1159                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1160                         break;
1161                 }
1162                 if (i < playlist_amount())
1163                     index = i;
1164                 else
1165                     return;
1166             }
1167             playlist_start(index,offset);
1168         }
1169     }
1170
1171     start_wps=true;
1172 }
1173
1174 static int ft_play_filenumber(int pos, int attr)
1175 {
1176     /* try to find a voice ID for the extension, if known */
1177     int j;
1178     int ext_id = -1; /* default to none */
1179     for (j=0; j<filetypes_count; j++)
1180     {
1181         if (attr == filetypes[j].tree_attr)
1182         {
1183             ext_id = filetypes[j].voiceclip;
1184             break;
1185         }
1186     }
1187
1188     talk_id(VOICE_FILE, false);
1189     talk_number(pos, true);
1190     talk_id(ext_id, true);
1191     return 1;
1192 }
1193
1194 static int ft_play_dirname(char* name)
1195 {
1196     int fd;
1197     char dirname_mp3_filename[MAX_PATH+1];
1198
1199 #if CONFIG_CODEC != SWCODEC
1200     if (audio_status() & AUDIO_STATUS_PLAY)
1201         return 0;
1202 #endif
1203
1204     snprintf(dirname_mp3_filename, sizeof(dirname_mp3_filename), "%s/%s/%s",
1205              tc.currdir[1] ? tc.currdir : "" , name,
1206              dir_thumbnail_name);
1207
1208     DEBUGF("Checking for %s\n", dirname_mp3_filename);
1209
1210     fd = open(dirname_mp3_filename, O_RDONLY);
1211     if (fd < 0)
1212     {
1213         DEBUGF("Failed to find: %s\n", dirname_mp3_filename);
1214         return -1;
1215     }
1216
1217     close(fd);
1218
1219     DEBUGF("Found: %s\n", dirname_mp3_filename);
1220
1221     talk_file(dirname_mp3_filename, false);
1222     return 1;
1223 }
1224
1225 static void ft_play_filename(char *dir, char *file)
1226 {
1227     char name_mp3_filename[MAX_PATH+1];
1228
1229 #if CONFIG_CODEC != SWCODEC
1230     if (audio_status() & AUDIO_STATUS_PLAY)
1231         return;
1232 #endif
1233
1234     if (strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1235                     file_thumbnail_ext))
1236     {   /* file has no .talk extension */
1237         snprintf(name_mp3_filename, sizeof(name_mp3_filename),
1238                  "%s/%s%s", dir, file, file_thumbnail_ext);
1239
1240         talk_file(name_mp3_filename, false);
1241     }
1242     else
1243     {   /* it already is a .talk file, play this directly */
1244         snprintf(name_mp3_filename, sizeof(name_mp3_filename),
1245             "%s/%s", dir, file);
1246         talk_id(LANG_VOICE_DIR_HOVER, false); /* prefix it */
1247         talk_file(name_mp3_filename, true);
1248     }
1249 }
1250
1251 /* These two functions are called by the USB and shutdown handlers */
1252 void tree_flush(void)
1253 {
1254     scrobbler_shutdown();
1255 #ifdef HAVE_TAGCACHE
1256     tagcache_shutdown();
1257 #endif
1258     playlist_shutdown();
1259
1260 #ifdef HAVE_TC_RAMCACHE
1261     tagcache_unload_ramcache();
1262 #endif
1263
1264 #ifdef HAVE_DIRCACHE
1265     {
1266         int old_val = global_status.dircache_size;
1267         if (global_settings.dircache)
1268         {
1269             global_status.dircache_size = dircache_get_cache_size();
1270 # ifdef HAVE_EEPROM_SETTINGS
1271             if (firmware_settings.initialized)
1272                 dircache_save();
1273 # endif
1274             dircache_disable();
1275         }
1276         else
1277         {
1278             global_status.dircache_size = 0;
1279         }
1280         if (old_val != global_status.dircache_size)
1281             status_save();
1282     }
1283 #endif
1284 }
1285
1286 void tree_restore(void)
1287 {
1288 #ifdef HAVE_EEPROM_SETTINGS
1289     firmware_settings.disk_clean = false;
1290 #endif
1291
1292 #ifdef HAVE_TC_RAMCACHE
1293     remove(TAGCACHE_STATEFILE);
1294 #endif
1295
1296 #ifdef HAVE_DIRCACHE
1297     remove(DIRCACHE_FILE);
1298     if (global_settings.dircache)
1299     {
1300         /* Print "Scanning disk..." to the display. */
1301         int i;
1302         FOR_NB_SCREENS(i)
1303         {
1304             screens[i].putsxy((LCD_WIDTH/2) -
1305                               ((strlen(str(LANG_DIRCACHE_BUILDING)) *
1306                                 screens[i].char_width)/2),
1307                               LCD_HEIGHT-screens[i].char_height*3,
1308                               str(LANG_DIRCACHE_BUILDING));
1309             gui_textarea_update(&screens[i]);
1310         }
1311
1312         dircache_build(global_status.dircache_size);
1313
1314         /* Clean the text when we are done. */
1315         FOR_NB_SCREENS(i)
1316         {
1317             gui_textarea_clear(&screens[i]);
1318         }
1319     }
1320 #endif
1321 #ifdef HAVE_TAGCACHE
1322     tagcache_start_scan();
1323 #endif
1324     scrobbler_init();
1325 }