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 /* do this really late in the init sequence */
 206 void tree_gui_init(void)
 207 {
 208     gui_sync_wps_screen_init();
 209
 210     check_rockboxdir();
 211
 212     strcpy(tc.currdir, "/");
 213
 214 #ifdef HAVE_LCD_CHARCELLS
 215     int i;
 216     FOR_NB_SCREENS(i)
 217         screens[i].double_height(false);
 218 #endif
 219 #ifdef HAS_BUTTONBAR
 220     gui_buttonbar_init(&tree_buttonbar);
 221     /* since archos only have one screen, no need to create more than that */
 222     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 223 #endif
 224     gui_synclist_init(&tree_lists, &tree_get_filename, &tc, false, 1);
 225     gui_synclist_set_icon_callback(&tree_lists, &tree_get_fileicon);
 226 }
 227
 228
 229
 230 struct tree_context* tree_get_context(void)
 231 {
 232     return &tc;
 233 }
 234
 235 /* talkbox hovering delay, to avoid immediate disk activity */
 236 #define HOVER_DELAY (HZ/2)
 237 /*
 238  * Returns the position of a given file in the current directory
 239  * returns -1 if not found
 240  */
 241 static int tree_get_file_position(char * filename)
 242 {
 243     int i;
 244
 245     /* use lastfile to determine the selected item (default=0) */
 246     for (i=0; i < tc.filesindir; i++)
 247     {
 248         struct entry* dc = tc.dircache;
 249         struct entry* e = &dc[i];
 250         if (!strcasecmp(e->name, filename))
 251             return(i);
 252     }
 253     return(-1);/* no file can match, returns undefined */
 254 }
 255
 256 /*
 257  * Called when a new dir is loaded (for example when returning from other apps ...)
 258  * also completely redraws the tree
 259  */
 260 static int update_dir(void)
 261 {
 262   bool changed = false;
 263 #ifdef HAVE_TAGCACHE
 264     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 265     /* Checks for changes */
 266     if (id3db) {
 267         if (tc.currtable != lasttable ||
 268             tc.currextra != lastextra ||
 269             tc.firstpos  != lastfirstpos ||
 270             reload_dir)
 271         {
 272             if (tagtree_load(&tc) < 0)
 273                 return -1;
 274
 275             lasttable = tc.currtable;
 276             lastextra = tc.currextra;
 277             lastfirstpos = tc.firstpos;
 278             changed = true;
 279         }
 280     }
 281     else
 282 #endif
 283         {
 284         /* if the tc.currdir has been changed, reload it ...*/
 285         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir) {
 286
 287             if (ft_load(&tc, NULL) < 0)
 288                 return -1;
 289             strcpy(lastdir, tc.currdir);
 290             changed = true;
 291         }
 292     }
 293     /* if selected item is undefined */
 294     if (tc.selected_item == -1)
 295     {
 296         /* use lastfile to determine the selected item */
 297         tc.selected_item = tree_get_file_position(lastfile);
 298
 299         /* If the file doesn't exists, select the first one (default) */
 300         if(tc.selected_item < 0)
 301             tc.selected_item = 0;
 302         changed = true;
 303     }
 304     if (changed)
 305     {
 306         if(
 307 #ifdef HAVE_TAGCACHE
 308         !id3db &&
 309 #endif
 310         (tc.dirfull ||
 311                       tc.filesindir == global_settings.max_files_in_dir) )
 312         {
 313             gui_syncsplash(HZ, str(LANG_SHOWDIR_BUFFER_FULL));
 314         }
 315     }
 316 #ifdef HAVE_TAGCACHE
 317     if (id3db)
 318     {
 319         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 320             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 321         {
 322             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 323                 filetype_get_icon(ATTR_DIRECTORY));
 324         }
 325         else
 326         {
 327             /* Must clear the title as the list is reused */
 328             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 329         }
 330     }
 331     else
 332 #endif
 333     {
 334         if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 335         {
 336             gui_synclist_set_title(&tree_lists, tc.currdir,
 337                 filetype_get_icon(ATTR_DIRECTORY));
 338         }
 339         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 340         {
 341             char *title = strrchr(tc.currdir, '/') + 1;
 342             if (*title == '\0')
 343             {
 344                 /* Display "Files" for the root dir */
 345                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 346                     filetype_get_icon(ATTR_DIRECTORY));
 347             }
 348             else
 349                 gui_synclist_set_title(&tree_lists, title,
 350                     filetype_get_icon(ATTR_DIRECTORY));
 351         }
 352         else
 353         {
 354             /* Must clear the title as the list is reused */
 355             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 356         }
 357     }
 358
 359     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 360     gui_synclist_set_icon_callback(&tree_lists, tree_get_fileicon);
 361     if( tc.selected_item >= tc.filesindir)
 362         tc.selected_item=tc.filesindir-1;
 363
 364     gui_synclist_select_item(&tree_lists, tc.selected_item);
 365 #ifdef HAS_BUTTONBAR
 366     if (global_settings.buttonbar) {
 367         if (*tc.dirfilter < NUM_FILTER_MODES)
 368             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 369                           str(LANG_SYSFONT_DIRBROWSE_F2),
 370                           str(LANG_SYSFONT_DIRBROWSE_F3));
 371         else
 372             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 373         gui_buttonbar_draw(&tree_buttonbar);
 374     }
 375 #endif
 376     gui_synclist_draw(&tree_lists);
 377     gui_syncstatusbar_draw(&statusbars, true);
 378     return tc.filesindir;
 379 }
 380
 381 /* load tracks from specified directory to resume play */
 382 void resume_directory(const char *dir)
 383 {
 384 #ifdef HAVE_TAGCACHE
 385     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 386 #endif
 387
 388     if (ft_load(&tc, dir) < 0)
 389         return;
 390     lastdir[0] = 0;
 391
 392     ft_build_playlist(&tc, 0);
 393
 394 #ifdef HAVE_TAGCACHE
 395     if (id3db)
 396         tagtree_load(&tc);
 397 #endif
 398 }
 399
 400 /* Returns the current working directory and also writes cwd to buf if
 401    non-NULL.  In case of error, returns NULL. */
 402 char *getcwd(char *buf, int size)
 403 {
 404     if (!buf)
 405         return tc.currdir;
 406     else if (size > 0)
 407     {
 408         strncpy(buf, tc.currdir, size);
 409         return buf;
 410     }
 411     else
 412         return NULL;
 413 }
 414
 415 /* Force a reload of the directory next time directory browser is called */
 416 void reload_directory(void)
 417 {
 418     reload_dir = true;
 419 }
 420
 421 void get_current_file(char* buffer, int buffer_len)
 422 {
 423 #ifdef HAVE_TAGCACHE
 424     /* in ID3DB mode it is a bad idea to call this function */
 425     /* (only happens with `follow playlist') */
 426     if( *tc.dirfilter == SHOW_ID3DB )
 427         return;
 428 #endif
 429
 430     struct entry* dc = tc.dircache;
 431     struct entry* e = &dc[tc.selected_item];
 432     snprintf(buffer, buffer_len, "%s/%s", getcwd(NULL,0),
 433                                           tc.dirlength ? e->name : "");
 434 }
 435
 436 /* Selects a file and update tree context properly */
 437 static void set_current_file(char *path)
 438 {
 439     char *name;
 440     int i;
 441
 442 #ifdef HAVE_TAGCACHE
 443     /* in ID3DB mode it is a bad idea to call this function */
 444     /* (only happens with `follow playlist') */
 445     if( *tc.dirfilter == SHOW_ID3DB )
 446         return;
 447 #endif
 448
 449     /* separate directory from filename */
 450     /* gets the directory's name and put it into tc.currdir */
 451     name = strrchr(path+1,'/');
 452     if (name)
 453     {
 454         *name = 0;
 455         strcpy(tc.currdir, path);
 456         *name = '/';
 457         name++;
 458     }
 459     else
 460     {
 461         strcpy(tc.currdir, "/");
 462         name = path+1;
 463     }
 464
 465     strcpy(lastfile, name);
 466
 467
 468     /* If we changed dir we must recalculate the dirlevel
 469        and adjust the selected history properly */
 470     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 471     {
 472         tc.dirlevel =  0;
 473         tc.selected_item_history[tc.dirlevel] = -1;
 474
 475         /* use '/' to calculate dirlevel */
 476         for (i = 1; path[i] != '\0'; i++)
 477         {
 478             if (path[i] == '/')
 479             {
 480                 tc.dirlevel++;
 481                 tc.selected_item_history[tc.dirlevel] = -1;
 482             }
 483         }
 484     }
 485     if (ft_load(&tc, NULL) >= 0)
 486     {
 487         tc.selected_item = tree_get_file_position(lastfile);
 488     }
 489 }
 490
 491
 492 /* main loop, handles key events */
 493 static int dirbrowse()
 494 {
 495     int numentries=0;
 496     char buf[MAX_PATH];
 497     int lasti = -1;
 498     unsigned button, returned_button;
 499     bool reload_root = false;
 500     int lastfilter = *tc.dirfilter;
 501     bool lastsortcase = global_settings.sort_case;
 502     bool need_update = true;
 503     bool exit_func = false;
 504     long thumbnail_time = -1; /* for delaying a thumbnail */
 505     long last_cancel = 0;
 506
 507     char* currdir = tc.currdir; /* just a shortcut */
 508 #ifdef HAVE_TAGCACHE
 509     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 510
 511     if (id3db)
 512         curr_context=CONTEXT_ID3DB;
 513     else
 514 #endif
 515         curr_context=CONTEXT_TREE;
 516     if (tc.selected_item < 0)
 517         tc.selected_item = 0;
 518 #ifdef HAVE_TAGCACHE
 519     tc.firstpos=0;
 520     lasttable = -1;
 521     lastextra = -1;
 522     lastfirstpos = 0;
 523 #endif
 524
 525     start_wps = false;
 526     numentries = update_dir();
 527     if (numentries == -1)
 528         return false;  /* currdir is not a directory */
 529
 530     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 531     {
 532         gui_syncsplash(HZ*2, str(LANG_NO_FILES));
 533         return false;  /* No files found for rockbox_browser() */
 534     }
 535
 536     while(1) {
 537         struct entry *dircache = tc.dircache;
 538         bool restore = false;
 539         if (tc.dirlevel < 0)
 540           tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 541 #ifdef BOOTFILE
 542         if (boot_changed) {
 543             char *lines[]={str(LANG_BOOT_CHANGED), str(LANG_REBOOT_NOW)};
 544             struct text_message message={lines, 2};
 545             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 546                 rolo_load("/" BOOTFILE);
 547             restore = true;
 548             boot_changed = false;
 549         }
 550 #endif
 551         button = get_action(CONTEXT_TREE,HZ/5);
 552         returned_button = gui_synclist_do_button(&tree_lists, button,LIST_WRAP_UNLESS_HELD);
 553         if (returned_button)
 554             need_update = true;
 555         if (returned_button == ACTION_STD_CANCEL)
 556             button = ACTION_STD_CANCEL;
 557
 558         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 559         switch ( button ) {
 560             case ACTION_STD_OK:
 561                 /* nothing to do if no files to display */
 562                 if ( numentries == 0 )
 563                     break;
 564
 565 #ifdef HAVE_TAGCACHE
 566                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 567 #else
 568                 switch (ft_enter(&tc))
 569 #endif
 570                 {
 571                     case 1: reload_dir = true; break;
 572                     case 2: start_wps = true; break;
 573                     case 3: exit_func = true; break;
 574                     default: break;
 575                 }
 576                 restore = true;
 577                 break;
 578
 579             case ACTION_STD_CANCEL:
 580                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 581                     exit_func = true;
 582                     break;
 583                 }
 584                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 585                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 586                 {
 587                     if (last_cancel && TIME_BEFORE(current_tick, last_cancel+HZ/2))
 588                     {
 589                         last_cancel = 0;
 590                         action_signalscreenchange(); /* eat the cancel presses */
 591                         break;
 592                     }
 593                     else
 594                         return GO_TO_ROOT;
 595                 }
 596                 last_cancel = current_tick;
 597
 598 #ifdef HAVE_TAGCACHE
 599                 if (id3db)
 600                     tagtree_exit(&tc);
 601                 else
 602 #endif
 603                     if (ft_exit(&tc) == 3)
 604                         exit_func = true;
 605
 606                 restore = true;
 607                 break;
 608
 609             case ACTION_TREE_STOP:
 610                 if (list_stop_handler())
 611                     restore = true;
 612                 break;
 613
 614             case ACTION_STD_MENU:
 615                 return GO_TO_ROOT;
 616                 break;
 617
 618             case ACTION_TREE_WPS:
 619                 return GO_TO_PREVIOUS_MUSIC;
 620                 break;
 621 #ifdef HAVE_QUICKSCREEN
 622             case ACTION_STD_QUICKSCREEN:
 623                 /* don't enter f2 from plugin browser */
 624                 if (*tc.dirfilter < NUM_FILTER_MODES)
 625                 {
 626                     if (quick_screen_quick(button))
 627                         reload_dir = true;
 628                     restore = true;
 629                 }
 630                 break;
 631 #endif
 632 #ifdef BUTTON_F3
 633             case ACTION_F3:
 634                 /* don't enter f3 from plugin browser */
 635                 if (*tc.dirfilter < NUM_FILTER_MODES)
 636                 {
 637                     if (quick_screen_f3(BUTTON_F3))
 638                         reload_dir = true;
 639                     restore = true;
 640                 }
 641                 break;
 642 #endif
 643
 644             case ACTION_STD_CONTEXT:
 645             {
 646                 int onplay_result;
 647                 int attr = 0;
 648
 649                 if(!numentries)
 650                     onplay_result = onplay(NULL, 0, curr_context);
 651                 else {
 652 #ifdef HAVE_TAGCACHE
 653                     if (id3db)
 654                     {
 655                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 656                         {
 657                             attr = FILE_ATTR_AUDIO;
 658                             tagtree_get_filename(&tc, buf, sizeof(buf));
 659                         }
 660                         else
 661                             attr = ATTR_DIRECTORY;
 662                     }
 663                     else
 664 #endif
 665                     {
 666                         attr = dircache[tc.selected_item].attr;
 667
 668                         if (currdir[1]) /* Not in / */
 669                             snprintf(buf, sizeof buf, "%s/%s",
 670                                      currdir,
 671                                      dircache[tc.selected_item].name);
 672                         else /* In / */
 673                             snprintf(buf, sizeof buf, "/%s",
 674                                      dircache[tc.selected_item].name);
 675                     }
 676                     onplay_result = onplay(buf, attr, curr_context);
 677                 }
 678                 switch (onplay_result)
 679                 {
 680                     case ONPLAY_MAINMENU:
 681                         return GO_TO_ROOT;
 682
 683                     case ONPLAY_OK:
 684                         restore = true;
 685                         break;
 686
 687                     case ONPLAY_RELOAD_DIR:
 688                         reload_dir = true;
 689                         break;
 690
 691                     case ONPLAY_START_PLAY:
 692                         return GO_TO_WPS;
 693                         break;
 694                 }
 695                 break;
 696             }
 697
 698             case ACTION_NONE:
 699                 if (thumbnail_time != -1 &&
 700                     TIME_AFTER(current_tick, thumbnail_time))
 701                 {   /* a delayed hovering thumbnail is due now */
 702                     int res;
 703                     int attr;
 704                     char* name;
 705
 706 #ifdef HAVE_TAGCACHE
 707                     if (id3db)
 708                     {
 709                         attr = tagtree_get_attr(&tc);
 710                         name = tagtree_get_entry(&tc, lasti)->name;
 711                     }
 712                     else
 713 #endif
 714                     {
 715                         attr = dircache[lasti].attr;
 716                         name = dircache[lasti].name;
 717                     }
 718
 719                     if (attr & ATTR_DIRECTORY)
 720                     {
 721                         DEBUGF("Playing directory thumbnail: %s", currdir);
 722                         res = ft_play_dirname(name);
 723                         if (res < 0) /* failed, not existing */
 724                         {
 725                             /* say the number or spell if required as a fallback */
 726                             switch (global_settings.talk_dir)
 727                             {
 728                             case 1: /* dirs as numbers */
 729                                 talk_id(VOICE_DIR, false);
 730                                 talk_number(lasti+1, true);
 731                                 break;
 732
 733                             case 2: /* dirs spelled */
 734                                 talk_spell(name, false);
 735                                 break;
 736                             }
 737                         }
 738                     }
 739                     else
 740                     {
 741                         DEBUGF("Playing file thumbnail: %s/%s%s\n",
 742                                currdir, name,
 743                                file_thumbnail_ext);
 744                         /* no fallback necessary, we knew in advance
 745                            that the file exists */
 746                         ft_play_filename(currdir, name);
 747                     }
 748                     thumbnail_time = -1; /* job done */
 749                 }
 750                 gui_syncstatusbar_draw(&statusbars, false);
 751                 break;
 752
 753 #ifdef HAVE_HOTSWAP
 754             case SYS_FS_CHANGED:
 755 #ifdef HAVE_TAGCACHE
 756                 if (!id3db)
 757 #endif
 758                     reload_dir = true;
 759                 /* The 'dir no longer valid' situation will be caught later
 760                  * by checking the showdir() result. */
 761                 break;
 762 #endif
 763
 764             default:
 765                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 766                 {
 767                     if(*tc.dirfilter > NUM_FILTER_MODES)
 768                         /* leave sub-browsers after usb, doing otherwise
 769                            might be confusing to the user */
 770                         exit_func = true;
 771                     else
 772                         reload_dir = true;
 773                 }
 774                 break;
 775         }
 776         if (start_wps)
 777             return GO_TO_WPS;
 778         if ( button )
 779         {
 780             ata_spin();
 781         }
 782
 783
 784     check_rescan:
 785         /* do we need to rescan dir? */
 786         if (reload_dir || reload_root ||
 787             lastfilter != *tc.dirfilter ||
 788             lastsortcase != global_settings.sort_case)
 789         {
 790             if ( reload_root ) {
 791                 strcpy(currdir, "/");
 792                 tc.dirlevel = 0;
 793 #ifdef HAVE_TAGCACHE
 794                 tc.currtable = 0;
 795                 tc.currextra = 0;
 796                 lasttable = -1;
 797                 lastextra = -1;
 798 #endif
 799                 reload_root = false;
 800             }
 801
 802             if (! reload_dir )
 803             {
 804                 gui_synclist_select_item(&tree_lists, 0);
 805                 gui_synclist_draw(&tree_lists);
 806                 tc.selected_item = 0;
 807                 lastdir[0] = 0;
 808             }
 809
 810             lastfilter = *tc.dirfilter;
 811             lastsortcase = global_settings.sort_case;
 812             restore = true;
 813         }
 814
 815         if (exit_func)
 816             return GO_TO_PREVIOUS;
 817
 818         if (restore || reload_dir) {
 819             /* restore display */
 820             numentries = update_dir();
 821             if (currdir[1] && (numentries < 0))
 822             {   /* not in root and reload failed */
 823                 reload_root = true; /* try root */
 824                 reload_dir = false;
 825                 goto check_rescan;
 826             }
 827             need_update = true;
 828             reload_dir = false;
 829         }
 830
 831         if(need_update) {
 832             need_update=false;
 833             if ( numentries > 0 ) {
 834                 /* Voice the file if changed */
 835                 if(lasti != tc.selected_item || restore) {
 836                     int attr;
 837                     char* name;
 838
 839                     lasti = tc.selected_item;
 840                     thumbnail_time = -1; /* Cancel whatever we were
 841                                             about to say */
 842
 843 #ifdef HAVE_TAGCACHE
 844                     if (id3db)
 845                     {
 846                         attr = tagtree_get_attr(&tc);
 847                         name = tagtree_get_entry(&tc, tc.selected_item)->name;
 848                     }
 849                     else
 850 #endif
 851                     {
 852                         attr = dircache[tc.selected_item].attr;
 853                         name = dircache[tc.selected_item].name;
 854                     }
 855
 856                     /* Directory? */
 857                     if (attr & ATTR_DIRECTORY)
 858                     {
 859                         /* schedule thumbnail playback if required */
 860                         if (global_settings.talk_dir_clip)
 861                             thumbnail_time = current_tick + HOVER_DELAY;
 862                         else
 863                         {
 864                             /* talk directly */
 865                             switch (global_settings.talk_dir)
 866                             {
 867                             case 1: /* dirs as numbers */
 868                                 talk_id(VOICE_DIR, false);
 869                                 talk_number(tc.selected_item+1, true);
 870                                 break;
 871
 872                             case 2: /* dirs spelled */
 873                                 talk_spell(name, false);
 874                                 break;
 875                             }
 876                         }
 877                     }
 878                     else /* file */
 879                     {
 880                         /* schedule thumbnail playback if required */
 881                         if (global_settings.talk_file_clip && (attr & FILE_ATTR_THUMBNAIL))
 882                             thumbnail_time = current_tick + HOVER_DELAY;
 883                         else
 884                         {
 885                             /* talk directly */
 886                             switch (global_settings.talk_file)
 887                             {
 888                             case 1: /* files as numbers */
 889                                 ft_play_filenumber(
 890                                     tc.selected_item-tc.dirsindir+1,
 891                                     attr & FILE_ATTR_MASK);
 892                                 break;
 893
 894                             case 2: /* files spelled */
 895                                 talk_spell(name, false);
 896                                 break;
 897                             }
 898                         }
 899                     }
 900                 }
 901             }
 902         }
 903     }
 904     action_signalscreenchange();
 905     return true;
 906 }
 907
 908 static int plsize = 0;
 909 static long pltick;
 910 static bool add_dir(char* dirname, int len, int fd)
 911 {
 912     bool abort = false;
 913     DIRCACHED* dir;
 914
 915     /* check for user abort */
 916     if (action_userabort(TIMEOUT_NOBLOCK))
 917         return true;
 918
 919     dir = opendir_cached(dirname);
 920     if(!dir)
 921         return true;
 922
 923     while (true) {
 924         struct dircache_entry *entry;
 925
 926         entry = readdir_cached(dir);
 927         if (!entry)
 928             break;
 929         if (entry->attribute & ATTR_DIRECTORY) {
 930             int dirlen = strlen(dirname);
 931             bool result;
 932
 933             if (!strcmp((char *)entry->d_name, ".") ||
 934                 !strcmp((char *)entry->d_name, ".."))
 935                 continue;
 936
 937             if (dirname[1])
 938                 snprintf(dirname+dirlen, len-dirlen, "/%s", entry->d_name);
 939             else
 940                 snprintf(dirname, len, "/%s", entry->d_name);
 941
 942             result = add_dir(dirname, len, fd);
 943             dirname[dirlen] = '\0';
 944             if (result) {
 945                 abort = true;
 946                 break;
 947             }
 948         }
 949         else {
 950             int x = strlen((char *)entry->d_name);
 951             int i;
 952             char *cp = strrchr((char *)entry->d_name,'.');
 953
 954             if (cp) {
 955                 cp++;
 956
 957                 /* add all supported audio files to playlists */
 958                 for (i=0; i < filetypes_count; i++) {
 959                     if (filetypes[i].tree_attr == FILE_ATTR_AUDIO) {
 960                         if (!strcasecmp(cp, filetypes[i].extension)) {
 961                             char buf[8];
 962                             int i;
 963                             write(fd, dirname, strlen(dirname));
 964                             write(fd, "/", 1);
 965                             write(fd, entry->d_name, x);
 966                             write(fd, "\n", 1);
 967
 968                             plsize++;
 969                             if(TIME_AFTER(current_tick, pltick+HZ/4)) {
 970                                 pltick = current_tick;
 971
 972                                 snprintf(buf, sizeof buf, "%d", plsize);
 973 #ifdef HAVE_LCD_BITMAP
 974                                 FOR_NB_SCREENS(i)
 975                                 {
 976                                     screens[i].puts(0, 4, (unsigned char *)buf);
 977                                     gui_textarea_update(&screens[i]);
 978                                 }
 979 #else
 980                                 x = 10;
 981                                 if (plsize > 999)
 982                                     x=7;
 983                                 else {
 984                                     if (plsize > 99)
 985                                         x=8;
 986                                     else {
 987                                         if (plsize > 9)
 988                                             x=9;
 989                                     }
 990                                 }
 991                                 FOR_NB_SCREENS(i) {
 992                                     screens[i].puts(x,0,buf);
 993                                 }
 994 #endif
 995                             }
 996                             break;
 997                         }
 998                     }
 999                 }
1000             }
1001         }
1002     }
1003     closedir_cached(dir);
1004
1005     return abort;
1006 }
1007
1008 bool create_playlist(void)
1009 {
1010     int fd;
1011     int i;
1012     char filename[MAX_PATH];
1013
1014     pltick = current_tick;
1015
1016     snprintf(filename, sizeof filename, "%s.m3u8",
1017              tc.currdir[1] ? tc.currdir : "/root");
1018     FOR_NB_SCREENS(i)
1019     {
1020         gui_textarea_clear(&screens[i]);
1021         screens[i].puts(0, 0, str(LANG_CREATING));
1022         screens[i].puts_scroll(0, 1, (unsigned char *)filename);
1023 #if defined(HAVE_LCD_BITMAP) || defined(SIMULATOR)
1024         gui_textarea_update(&screens[i]);
1025 #endif
1026     }
1027     fd = creat(filename);
1028     if (fd < 0)
1029         return false;
1030
1031     trigger_cpu_boost();
1032
1033     snprintf(filename, sizeof(filename), "%s",
1034              tc.currdir[1] ? tc.currdir : "/");
1035     plsize = 0;
1036     add_dir(filename, sizeof(filename), fd);
1037     close(fd);
1038
1039     sleep(HZ);
1040
1041     return true;
1042 }
1043
1044 int rockbox_browse(const char *root, int dirfilter)
1045 {
1046     int ret_val = 0;
1047     int *last_filter = tc.dirfilter;
1048     tc.dirfilter = &dirfilter;
1049
1050     reload_dir = true;
1051     if (dirfilter >= NUM_FILTER_MODES)
1052     {
1053         static struct tree_context backup;
1054         int last_context;
1055
1056         backup = tc;
1057         tc.selected_item = 0;
1058         tc.dirlevel = 0;
1059         memcpy(tc.currdir, root, sizeof(tc.currdir));
1060         start_wps = false;
1061         last_context = curr_context;
1062
1063         ret_val = dirbrowse();
1064         tc = backup;
1065         curr_context = last_context;
1066     }
1067     else
1068     {
1069         static char buf[MAX_PATH];
1070         if (dirfilter != SHOW_ID3DB)
1071             tc.dirfilter = &global_settings.dirfilter;
1072         strcpy(buf,root);
1073         set_current_file(buf);
1074         ret_val = dirbrowse();
1075     }
1076     tc.dirfilter = last_filter;
1077     return ret_val;
1078 }
1079
1080 void tree_mem_init(void)
1081 {
1082     /* We copy the settings value in case it is changed by the user. We can't
1083        use it until the next reboot. */
1084     max_files = global_settings.max_files_in_dir;
1085
1086     /* initialize tree context struct */
1087     memset(&tc, 0, sizeof(tc));
1088     tc.dirfilter = &global_settings.dirfilter;
1089
1090     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
1091     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
1092
1093     tc.dircache_size = max_files * sizeof(struct entry);
1094     tc.dircache = buffer_alloc(tc.dircache_size);
1095     tree_get_filetypes(&filetypes, &filetypes_count);
1096 }
1097
1098 void bookmark_play(char *resume_file, int index, int offset, int seed,
1099                    char *filename)
1100 {
1101     int i;
1102     char* suffix = strrchr(resume_file, '.');
1103
1104     if (suffix != NULL &&
1105         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
1106     {
1107         /* Playlist playback */
1108         char* slash;
1109         /* check that the file exists */
1110         int fd = open(resume_file, O_RDONLY);
1111         if(fd<0)
1112             return;
1113         close(fd);
1114
1115         slash = strrchr(resume_file,'/');
1116         if (slash)
1117         {
1118             char* cp;
1119             *slash=0;
1120
1121             cp=resume_file;
1122             if (!cp[0])
1123                 cp="/";
1124
1125             if (playlist_create(cp, slash+1) != -1)
1126             {
1127                 if (global_settings.playlist_shuffle)
1128                     playlist_shuffle(seed, -1);
1129                 playlist_start(index,offset);
1130             }
1131             *slash='/';
1132         }
1133     }
1134     else
1135     {
1136         /* Directory playback */
1137         lastdir[0]='\0';
1138         if (playlist_create(resume_file, NULL) != -1)
1139         {
1140             char* peek_filename;
1141             resume_directory(resume_file);
1142             if (global_settings.playlist_shuffle)
1143                 playlist_shuffle(seed, -1);
1144
1145             /* Check if the file is at the same spot in the directory,
1146                else search for it */
1147             peek_filename = playlist_peek(index);
1148
1149             if (peek_filename == NULL)
1150                 return;
1151
1152             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1153             {
1154                 for ( i=0; i < playlist_amount(); i++ )
1155                 {
1156                     peek_filename = playlist_peek(i);
1157
1158                     if (peek_filename == NULL)
1159                         return;
1160
1161                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1162                         break;
1163                 }
1164                 if (i < playlist_amount())
1165                     index = i;
1166                 else
1167                     return;
1168             }
1169             playlist_start(index,offset);
1170         }
1171     }
1172
1173     start_wps=true;
1174 }
1175
1176 static int ft_play_filenumber(int pos, int attr)
1177 {
1178     /* try to find a voice ID for the extension, if known */
1179     int j;
1180     int ext_id = -1; /* default to none */
1181     for (j=0; j<filetypes_count; j++)
1182     {
1183         if (attr == filetypes[j].tree_attr)
1184         {
1185             ext_id = filetypes[j].voiceclip;
1186             break;
1187         }
1188     }
1189
1190     talk_id(VOICE_FILE, false);
1191     talk_number(pos, true);
1192     talk_id(ext_id, true);
1193     return 1;
1194 }
1195
1196 static int ft_play_dirname(char* name)
1197 {
1198     int fd;
1199     char dirname_mp3_filename[MAX_PATH+1];
1200
1201 #if CONFIG_CODEC != SWCODEC
1202     if (audio_status() & AUDIO_STATUS_PLAY)
1203         return 0;
1204 #endif
1205
1206     snprintf(dirname_mp3_filename, sizeof(dirname_mp3_filename), "%s/%s/%s",
1207              tc.currdir[1] ? tc.currdir : "" , name,
1208              dir_thumbnail_name);
1209
1210     DEBUGF("Checking for %s\n", dirname_mp3_filename);
1211
1212     fd = open(dirname_mp3_filename, O_RDONLY);
1213     if (fd < 0)
1214     {
1215         DEBUGF("Failed to find: %s\n", dirname_mp3_filename);
1216         return -1;
1217     }
1218
1219     close(fd);
1220
1221     DEBUGF("Found: %s\n", dirname_mp3_filename);
1222
1223     talk_file(dirname_mp3_filename, false);
1224     return 1;
1225 }
1226
1227 static void ft_play_filename(char *dir, char *file)
1228 {
1229     char name_mp3_filename[MAX_PATH+1];
1230
1231 #if CONFIG_CODEC != SWCODEC
1232     if (audio_status() & AUDIO_STATUS_PLAY)
1233         return;
1234 #endif
1235
1236     if (strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1237                     file_thumbnail_ext))
1238     {   /* file has no .talk extension */
1239         snprintf(name_mp3_filename, sizeof(name_mp3_filename),
1240                  "%s/%s%s", dir, file, file_thumbnail_ext);
1241
1242         talk_file(name_mp3_filename, false);
1243     }
1244     else
1245     {   /* it already is a .talk file, play this directly */
1246         snprintf(name_mp3_filename, sizeof(name_mp3_filename),
1247             "%s/%s", dir, file);
1248         talk_id(LANG_VOICE_DIR_HOVER, false); /* prefix it */
1249         talk_file(name_mp3_filename, true);
1250     }
1251 }
1252
1253 /* These two functions are called by the USB and shutdown handlers */
1254 void tree_flush(void)
1255 {
1256     scrobbler_shutdown();
1257 #ifdef HAVE_TAGCACHE
1258     tagcache_shutdown();
1259 #endif
1260     playlist_shutdown();
1261
1262 #ifdef HAVE_TC_RAMCACHE
1263     tagcache_unload_ramcache();
1264 #endif
1265
1266 #ifdef HAVE_DIRCACHE
1267     {
1268         int old_val = global_status.dircache_size;
1269         if (global_settings.dircache)
1270         {
1271             global_status.dircache_size = dircache_get_cache_size();
1272 # ifdef HAVE_EEPROM_SETTINGS
1273             if (firmware_settings.initialized)
1274                 dircache_save();
1275 # endif
1276             dircache_disable();
1277         }
1278         else
1279         {
1280             global_status.dircache_size = 0;
1281         }
1282         if (old_val != global_status.dircache_size)
1283             status_save();
1284     }
1285 #endif
1286 }
1287
1288 void tree_restore(void)
1289 {
1290 #ifdef HAVE_EEPROM_SETTINGS
1291     firmware_settings.disk_clean = false;
1292 #endif
1293
1294 #ifdef HAVE_TC_RAMCACHE
1295     remove(TAGCACHE_STATEFILE);
1296 #endif
1297
1298 #ifdef HAVE_DIRCACHE
1299     remove(DIRCACHE_FILE);
1300     if (global_settings.dircache)
1301     {
1302         /* Print "Scanning disk..." to the display. */
1303         int i;
1304         FOR_NB_SCREENS(i)
1305         {
1306             screens[i].putsxy((LCD_WIDTH/2) -
1307                               ((strlen(str(LANG_DIRCACHE_BUILDING)) *
1308                                 screens[i].char_width)/2),
1309                               LCD_HEIGHT-screens[i].char_height*3,
1310                               str(LANG_DIRCACHE_BUILDING));
1311             gui_textarea_update(&screens[i]);
1312         }
1313
1314         dircache_build(global_status.dircache_size);
1315
1316         /* Clean the text when we are done. */
1317         FOR_NB_SCREENS(i)
1318         {
1319             gui_textarea_clear(&screens[i]);
1320         }
1321     }
1322 #endif
1323 #ifdef HAVE_TAGCACHE
1324     tagcache_start_scan();
1325 #endif
1326     scrobbler_init();
1327 }