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  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <stdbool.h>
  25
  26 #include "applimits.h"
  27 #include "dir.h"
  28 #include "file.h"
  29 #include "lcd.h"
  30 #include "font.h"
  31 #include "button.h"
  32 #include "kernel.h"
  33 #include "usb.h"
  34 #include "tree.h"
  35 #include "sprintf.h"
  36 #include "audio.h"
  37 #include "playlist.h"
  38 #include "menu.h"
  39 #include "gwps.h"
  40 #include "settings.h"
  41 #include "debug.h"
  42 #include "storage.h"
  43 #include "rolo.h"
  44 #include "icons.h"
  45 #include "lang.h"
  46 #include "screens.h"
  47 #include "keyboard.h"
  48 #include "bookmark.h"
  49 #include "onplay.h"
  50 #include "buffer.h"
  51 #include "power.h"
  52 #include "action.h"
  53 #include "talk.h"
  54 #include "filetypes.h"
  55 #include "misc.h"
  56 #include "filetree.h"
  57 #include "tagtree.h"
  58 #ifdef HAVE_RECORDING
  59 #include "recorder/recording.h"
  60 #endif
  61 #include "rtc.h"
  62 #include "dircache.h"
  63 #ifdef HAVE_TAGCACHE
  64 #include "tagcache.h"
  65 #endif
  66 #include "yesno.h"
  67 #include "gwps-common.h"
  68 #include "eeprom_settings.h"
  69 #include "playlist_catalog.h"
  70
  71 /* gui api */
  72 #include "list.h"
  73 #include "splash.h"
  74 #include "buttonbar.h"
  75 #include "quickscreen.h"
  76
  77 #include "root_menu.h"
  78
  79 static const struct filetype *filetypes;
  80 static int filetypes_count;
  81
  82 struct gui_synclist tree_lists;
  83
  84 /* I put it here because other files doesn't use it yet,
  85  * but should be elsewhere since it will be used mostly everywhere */
  86 #ifdef HAVE_BUTTONBAR
  87 struct gui_buttonbar tree_buttonbar;
  88 #endif
  89 static struct tree_context tc;
  90
  91 bool boot_changed = false;
  92
  93 char lastfile[MAX_PATH];
  94 static char lastdir[MAX_PATH];
  95 #ifdef HAVE_TAGCACHE
  96 static int lasttable, lastextra, lastfirstpos;
  97 #endif
  98 static int max_files = 0;
  99
 100 static bool reload_dir = false;
 101
 102 static bool start_wps = false;
 103 static int curr_context = false;/* id3db or tree*/
 104
 105 static int dirbrowse(void);
 106 static int ft_play_dirname(char* name);
 107 static void ft_play_filename(char *dir, char *file);
 108 static void say_filetype(int attr);
 109
 110 static char * tree_get_filename(int selected_item, void *data,
 111                                 char *buffer, size_t buffer_len)
 112 {
 113     struct tree_context * local_tc=(struct tree_context *)data;
 114     char *name;
 115     int attr=0;
 116     bool stripit = false;
 117 #ifdef HAVE_TAGCACHE
 118     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 119
 120     if (id3db)
 121     {
 122         return tagtree_get_entry(&tc, selected_item)->name;
 123     }
 124     else
 125 #endif
 126     {
 127         struct entry* dc = local_tc->dircache;
 128         struct entry* e = &dc[selected_item];
 129         name = e->name;
 130         attr = e->attr;
 131     }
 132
 133     if(!(attr & ATTR_DIRECTORY))
 134     {
 135         switch(global_settings.show_filename_ext)
 136         {
 137             case 0:
 138                 /* show file extension: off */
 139                 stripit = true;
 140                 break;
 141             case 1:
 142                 /* show file extension: on */
 143                 break;
 144             case 2:
 145                 /* show file extension: only unknown types */
 146                 stripit = filetype_supported(attr);
 147                 break;
 148             case 3:
 149             default:
 150                 /* show file extension: only when viewing all */
 151                 stripit = (*(local_tc->dirfilter) != SHOW_ID3DB) &&
 152                           (*(local_tc->dirfilter) != SHOW_ALL);
 153                 break;
 154         }
 155     }
 156
 157     if(stripit)
 158     {
 159         return(strip_extension(buffer, buffer_len, name));
 160     }
 161     return(name);
 162 }
 163
 164 #ifdef HAVE_LCD_COLOR
 165 static int tree_get_filecolor(int selected_item, void * data)
 166 {
 167     if (*tc.dirfilter == SHOW_ID3DB)
 168         return -1;
 169     struct tree_context * local_tc=(struct tree_context *)data;
 170     struct entry* dc = local_tc->dircache;
 171     struct entry* e = &dc[selected_item];
 172     return filetype_get_color(e->name, e->attr);
 173 }
 174 #endif
 175
 176 static int tree_get_fileicon(int selected_item, void * data)
 177 {
 178     struct tree_context * local_tc=(struct tree_context *)data;
 179 #ifdef HAVE_TAGCACHE
 180     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 181     if (id3db) {
 182         return tagtree_get_icon(&tc);
 183     }
 184     else
 185 #endif
 186         {
 187         struct entry* dc = local_tc->dircache;
 188         struct entry* e = &dc[selected_item];
 189         return filetype_get_icon(e->attr);
 190     }
 191 }
 192
 193 static int tree_voice_cb(int selected_item, void * data)
 194 {
 195     struct tree_context * local_tc=(struct tree_context *)data;
 196     char *name;
 197     int attr=0;
 198 #ifdef HAVE_TAGCACHE
 199     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 200
 201     if (id3db)
 202     {
 203         attr = tagtree_get_attr(local_tc);
 204         name = tagtree_get_entry(local_tc, selected_item)->name;
 205     }
 206     else
 207 #endif
 208     {
 209         struct entry* dc = local_tc->dircache;
 210         struct entry* e = &dc[selected_item];
 211         name = e->name;
 212         attr = e->attr;
 213     }
 214     bool is_dir = (attr & ATTR_DIRECTORY);
 215     bool did_clip = false;
 216     /* First the .talk clip case */
 217     if(is_dir)
 218     {
 219         if(global_settings.talk_dir_clip)
 220         {
 221             did_clip = true;
 222             if(ft_play_dirname(name) <0)
 223                 /* failed, not existing */
 224                 did_clip = false;
 225         }
 226     } else { /* it's a file */
 227         if (global_settings.talk_file_clip && (attr & FILE_ATTR_THUMBNAIL))
 228         {
 229             did_clip = true;
 230             ft_play_filename(local_tc->currdir, name);
 231         }
 232     }
 233     if(!did_clip)
 234     {
 235         /* say the number or spell if required or as a fallback */
 236         switch (is_dir ? global_settings.talk_dir : global_settings.talk_file)
 237         {
 238         case 1: /* as numbers */
 239             talk_id(is_dir ? VOICE_DIR : VOICE_FILE, false);
 240             talk_number(selected_item+1        - (is_dir ? 0 : local_tc->dirsindir),
 241                         true);
 242             if(global_settings.talk_filetype
 243                && !is_dir && *local_tc->dirfilter < NUM_FILTER_MODES)
 244                 say_filetype(attr);
 245             break;
 246         case 2: /* spelled */
 247             talk_shutup();
 248             if(global_settings.talk_filetype)
 249             {
 250                 if(is_dir)
 251                     talk_id(VOICE_DIR, true);
 252                 else if(*local_tc->dirfilter < NUM_FILTER_MODES)
 253                     say_filetype(attr);
 254             }
 255             talk_spell(name, true);
 256             break;
 257         }
 258     }
 259     return 0;
 260 }
 261
 262 bool check_rockboxdir(void)
 263 {
 264     if(!dir_exists(ROCKBOX_DIR))
 265     {   /* No need to localise this message.
 266            If .rockbox is missing, it wouldn't work anyway */
 267         int i;
 268         FOR_NB_SCREENS(i)
 269             screens[i].clear_display();
 270         splash(HZ*2, "No .rockbox directory");
 271         FOR_NB_SCREENS(i)
 272             screens[i].clear_display();
 273         splash(HZ*2, "Installation incomplete");
 274         return false;
 275     }
 276     return true;
 277 }
 278
 279 /* do this really late in the init sequence */
 280 void tree_gui_init(void)
 281 {
 282     check_rockboxdir();
 283
 284     strcpy(tc.currdir, "/");
 285
 286 #ifdef HAVE_LCD_CHARCELLS
 287     int i;
 288     FOR_NB_SCREENS(i)
 289         screens[i].double_height(false);
 290 #endif
 291 #ifdef HAVE_BUTTONBAR
 292     gui_buttonbar_init(&tree_buttonbar);
 293     /* since archos only have one screen, no need to create more than that */
 294     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 295 #endif
 296     gui_synclist_init(&tree_lists, &tree_get_filename, &tc, false, 1, NULL);
 297     gui_synclist_set_voice_callback(&tree_lists, tree_voice_cb);
 298     gui_synclist_set_icon_callback(&tree_lists, &tree_get_fileicon);
 299 #ifdef HAVE_LCD_COLOR
 300     gui_synclist_set_color_callback(&tree_lists, &tree_get_filecolor);
 301 #endif
 302 }
 303
 304
 305
 306 struct tree_context* tree_get_context(void)
 307 {
 308     return &tc;
 309 }
 310
 311 /*
 312  * Returns the position of a given file in the current directory
 313  * returns -1 if not found
 314  */
 315 static int tree_get_file_position(char * filename)
 316 {
 317     int i;
 318
 319     /* use lastfile to determine the selected item (default=0) */
 320     for (i=0; i < tc.filesindir; i++)
 321     {
 322         struct entry* dc = tc.dircache;
 323         struct entry* e = &dc[i];
 324         if (!strcasecmp(e->name, filename))
 325             return(i);
 326     }
 327     return(-1);/* no file can match, returns undefined */
 328 }
 329
 330 /*
 331  * Called when a new dir is loaded (for example when returning from other apps ...)
 332  * also completely redraws the tree
 333  */
 334 static int update_dir(void)
 335 {
 336     bool changed = false;
 337 #ifdef HAVE_TAGCACHE
 338     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 339     /* Checks for changes */
 340     if (id3db) {
 341         if (tc.currtable != lasttable ||
 342             tc.currextra != lastextra ||
 343             tc.firstpos  != lastfirstpos ||
 344             reload_dir)
 345         {
 346             if (tagtree_load(&tc) < 0)
 347                 return -1;
 348
 349             lasttable = tc.currtable;
 350             lastextra = tc.currextra;
 351             lastfirstpos = tc.firstpos;
 352             changed = true;
 353         }
 354     }
 355     else
 356 #endif
 357     {
 358         /* if the tc.currdir has been changed, reload it ...*/
 359         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir)
 360         {
 361             if (ft_load(&tc, NULL) < 0)
 362                 return -1;
 363             strcpy(lastdir, tc.currdir);
 364             changed = true;
 365         }
 366     }
 367     /* if selected item is undefined */
 368     if (tc.selected_item == -1)
 369     {
 370         /* use lastfile to determine the selected item */
 371         tc.selected_item = tree_get_file_position(lastfile);
 372
 373         /* If the file doesn't exists, select the first one (default) */
 374         if(tc.selected_item < 0)
 375             tc.selected_item = 0;
 376         changed = true;
 377     }
 378     if (changed)
 379     {
 380         if(
 381 #ifdef HAVE_TAGCACHE
 382         !id3db &&
 383 #endif
 384         (tc.dirfull || tc.filesindir == global_settings.max_files_in_dir) )
 385         {
 386             splash(HZ, ID2P(LANG_SHOWDIR_BUFFER_FULL));
 387         }
 388     }
 389 #ifdef HAVE_TAGCACHE
 390     if (id3db)
 391     {
 392 #ifdef HAVE_LCD_BITMAP
 393         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 394             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 395         {
 396             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 397                 filetype_get_icon(ATTR_DIRECTORY));
 398         }
 399         else
 400         {
 401             /* Must clear the title as the list is reused */
 402             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 403         }
 404 #endif
 405     }
 406     else
 407 #endif
 408     {
 409 #ifdef HAVE_LCD_BITMAP
 410         if (global_settings.show_path_in_browser &&
 411             *(tc.dirfilter) == SHOW_PLUGINS)
 412         {
 413             char *title;
 414             if (!strcmp(tc.currdir, PLUGIN_GAMES_DIR))
 415                 title = str(LANG_PLUGIN_GAMES);
 416             else if (!strcmp(tc.currdir, PLUGIN_APPS_DIR))
 417                 title = str(LANG_PLUGIN_APPS);
 418             else if (!strcmp(tc.currdir, PLUGIN_DEMOS_DIR))
 419                 title = str(LANG_PLUGIN_DEMOS);
 420             else title = str(LANG_PLUGINS);
 421             gui_synclist_set_title(&tree_lists, title, Icon_Plugin);
 422         }
 423         else if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 424         {
 425             gui_synclist_set_title(&tree_lists, tc.currdir,
 426                 filetype_get_icon(ATTR_DIRECTORY));
 427         }
 428         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 429         {
 430             char *title = strrchr(tc.currdir, '/') + 1;
 431             if (*title == '\0')
 432             {
 433                 /* Display "Files" for the root dir */
 434                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 435                     filetype_get_icon(ATTR_DIRECTORY));
 436             }
 437             else
 438                 gui_synclist_set_title(&tree_lists, title,
 439                     filetype_get_icon(ATTR_DIRECTORY));
 440         }
 441         else
 442         {
 443             /* Must clear the title as the list is reused */
 444             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 445         }
 446 #endif
 447     }
 448
 449     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 450     gui_synclist_set_icon_callback(&tree_lists, tree_get_fileicon);
 451     if( tc.selected_item >= tc.filesindir)
 452         tc.selected_item=tc.filesindir-1;
 453
 454     gui_synclist_select_item(&tree_lists, tc.selected_item);
 455 #ifdef HAVE_BUTTONBAR
 456     if (global_settings.buttonbar) {
 457         if (*tc.dirfilter < NUM_FILTER_MODES)
 458             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 459                           str(LANG_SYSFONT_DIRBROWSE_F2),
 460                           str(LANG_SYSFONT_DIRBROWSE_F3));
 461         else
 462             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 463         gui_buttonbar_draw(&tree_buttonbar);
 464     }
 465 #endif
 466     gui_synclist_draw(&tree_lists);
 467     gui_synclist_speak_item(&tree_lists);
 468     return tc.filesindir;
 469 }
 470
 471 /* load tracks from specified directory to resume play */
 472 void resume_directory(const char *dir)
 473 {
 474         int dirfilter = *tc.dirfilter;
 475         int ret;
 476 #ifdef HAVE_TAGCACHE
 477     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 478 #endif
 479         /* make sure the dirfilter is sane. The only time it should be possible
 480          * thats its not is when resume playlist is called from a plugin
 481          */
 482 #ifdef HAVE_TAGCACHE
 483         if (!id3db)
 484 #endif
 485                 *tc.dirfilter = global_settings.dirfilter;
 486         ret = ft_load(&tc, dir);
 487         *tc.dirfilter = dirfilter;
 488         if (ret < 0)
 489         return;
 490     lastdir[0] = 0;
 491
 492     ft_build_playlist(&tc, 0);
 493
 494 #ifdef HAVE_TAGCACHE
 495     if (id3db)
 496         tagtree_load(&tc);
 497 #endif
 498 }
 499
 500 /* Returns the current working directory and also writes cwd to buf if
 501    non-NULL.  In case of error, returns NULL. */
 502 char *getcwd(char *buf, int size)
 503 {
 504     if (!buf)
 505         return tc.currdir;
 506     else if (size > 0)
 507     {
 508         strncpy(buf, tc.currdir, size);
 509         return buf;
 510     }
 511     else
 512         return NULL;
 513 }
 514
 515 /* Force a reload of the directory next time directory browser is called */
 516 void reload_directory(void)
 517 {
 518     reload_dir = true;
 519 }
 520
 521 void get_current_file(char* buffer, int buffer_len)
 522 {
 523 #ifdef HAVE_TAGCACHE
 524     /* in ID3DB mode it is a bad idea to call this function */
 525     /* (only happens with `follow playlist') */
 526     if( *tc.dirfilter == SHOW_ID3DB )
 527         return;
 528 #endif
 529
 530     struct entry* dc = tc.dircache;
 531     struct entry* e = &dc[tc.selected_item];
 532     snprintf(buffer, buffer_len, "%s/%s", getcwd(NULL,0),
 533                                           tc.dirlength ? e->name : "");
 534 }
 535
 536 /* Allow apps to change our dirfilter directly (required for sub browsers)
 537    if they're suddenly going to become a file browser for example */
 538 void set_dirfilter(int l_dirfilter)
 539 {
 540     *tc.dirfilter = l_dirfilter;
 541 }
 542
 543 /* Selects a file and update tree context properly */
 544 void set_current_file(char *path)
 545 {
 546     char *name;
 547     int i;
 548
 549 #ifdef HAVE_TAGCACHE
 550     /* in ID3DB mode it is a bad idea to call this function */
 551     /* (only happens with `follow playlist') */
 552     if( *tc.dirfilter == SHOW_ID3DB )
 553         return;
 554 #endif
 555
 556     /* separate directory from filename */
 557     /* gets the directory's name and put it into tc.currdir */
 558     name = strrchr(path+1,'/');
 559     if (name)
 560     {
 561         *name = 0;
 562         strcpy(tc.currdir, path);
 563         *name = '/';
 564         name++;
 565     }
 566     else
 567     {
 568         strcpy(tc.currdir, "/");
 569         name = path+1;
 570     }
 571
 572     strcpy(lastfile, name);
 573
 574
 575     /* If we changed dir we must recalculate the dirlevel
 576        and adjust the selected history properly */
 577     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 578     {
 579         tc.dirlevel =  0;
 580         tc.selected_item_history[tc.dirlevel] = -1;
 581
 582         /* use '/' to calculate dirlevel */
 583         for (i = 1; path[i] != '\0'; i++)
 584         {
 585             if (path[i] == '/')
 586             {
 587                 tc.dirlevel++;
 588                 tc.selected_item_history[tc.dirlevel] = -1;
 589             }
 590         }
 591     }
 592     if (ft_load(&tc, NULL) >= 0)
 593     {
 594         tc.selected_item = tree_get_file_position(lastfile);
 595     }
 596 }
 597
 598
 599 /* main loop, handles key events */
 600 static int dirbrowse()
 601 {
 602     int numentries=0;
 603     char buf[MAX_PATH];
 604     int button, oldbutton;
 605     bool reload_root = false;
 606     int lastfilter = *tc.dirfilter;
 607     bool lastsortcase = global_settings.sort_case;
 608     bool exit_func = false;
 609
 610     char* currdir = tc.currdir; /* just a shortcut */
 611 #ifdef HAVE_TAGCACHE
 612     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 613
 614     if (id3db)
 615         curr_context=CONTEXT_ID3DB;
 616     else
 617 #endif
 618         curr_context=CONTEXT_TREE;
 619     if (tc.selected_item < 0)
 620         tc.selected_item = 0;
 621 #ifdef HAVE_TAGCACHE
 622     tc.firstpos = 0;
 623     lasttable = -1;
 624     lastextra = -1;
 625     lastfirstpos = 0;
 626 #endif
 627
 628     start_wps = false;
 629     numentries = update_dir();
 630     reload_dir = false;
 631     if (numentries == -1)
 632         return GO_TO_PREVIOUS;  /* currdir is not a directory */
 633
 634     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 635     {
 636         splash(HZ*2, ID2P(LANG_NO_FILES));
 637         return GO_TO_PREVIOUS;  /* No files found for rockbox_browser() */
 638     }
 639
 640     gui_synclist_draw(&tree_lists);
 641     while(1) {
 642         struct entry *dircache = tc.dircache;
 643         bool restore = false;
 644         if (tc.dirlevel < 0)
 645             tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 646 #ifdef BOOTFILE
 647         if (boot_changed) {
 648             static const char *lines[]={ID2P(LANG_BOOT_CHANGED), ID2P(LANG_REBOOT_NOW)};
 649             static const struct text_message message={lines, 2};
 650             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 651                 rolo_load("/" BOOTFILE);
 652             restore = true;
 653             boot_changed = false;
 654         }
 655 #endif
 656         button = get_action(CONTEXT_TREE,
 657                             list_do_action_timeout(&tree_lists, HZ/2));
 658         oldbutton = button;
 659         gui_synclist_do_button(&tree_lists, &button,LIST_WRAP_UNLESS_HELD);
 660         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 661         switch ( button ) {
 662             case ACTION_STD_OK:
 663                 /* nothing to do if no files to display */
 664                 if ( numentries == 0 )
 665                     break;
 666
 667 #ifdef HAVE_TAGCACHE
 668                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 669 #else
 670                 switch (ft_enter(&tc))
 671 #endif
 672                 {
 673                     case 1: reload_dir = true; break;
 674                     case 2: start_wps = true; break;
 675                     case 3: exit_func = true; break;
 676                     default: break;
 677                 }
 678                 restore = true;
 679                 break;
 680
 681             case ACTION_STD_CANCEL:
 682                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 683                     exit_func = true;
 684                     break;
 685                 }
 686                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 687                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 688                 {
 689 #ifdef HAVE_LCD_BITMAP /* charcell doesnt have ACTION_TREE_PGLEFT so this isnt needed */
 690                     if (oldbutton == ACTION_TREE_PGLEFT)
 691                         break;
 692                     else
 693 #endif
 694                         return GO_TO_ROOT;
 695                 }
 696
 697 #ifdef HAVE_TAGCACHE
 698                 if (id3db)
 699                     tagtree_exit(&tc);
 700                 else
 701 #endif
 702                     if (ft_exit(&tc) == 3)
 703                         exit_func = true;
 704
 705                 restore = true;
 706                 break;
 707
 708             case ACTION_TREE_STOP:
 709                 if (list_stop_handler())
 710                     restore = true;
 711                 break;
 712
 713             case ACTION_STD_MENU:
 714                 return GO_TO_ROOT;
 715                 break;
 716
 717 #ifdef HAVE_RECORDING
 718             case ACTION_STD_REC:
 719                 return GO_TO_RECSCREEN;
 720 #endif
 721
 722             case ACTION_TREE_WPS:
 723                 return GO_TO_PREVIOUS_MUSIC;
 724                 break;
 725 #ifdef HAVE_QUICKSCREEN
 726             case ACTION_STD_QUICKSCREEN:
 727                 /* don't enter f2 from plugin browser */
 728                 if (*tc.dirfilter < NUM_FILTER_MODES)
 729                 {
 730                     if (quick_screen_quick(button))
 731                         reload_dir = true;
 732                     restore = true;
 733                 }
 734                 break;
 735 #endif
 736 #ifdef BUTTON_F3
 737             case ACTION_F3:
 738                 /* don't enter f3 from plugin browser */
 739                 if (*tc.dirfilter < NUM_FILTER_MODES)
 740                 {
 741                     if (quick_screen_f3(ACTION_F3))
 742                         reload_dir = true;
 743                     restore = true;
 744                 }
 745                 break;
 746 #endif
 747
 748             case ACTION_STD_CONTEXT:
 749             {
 750                 int onplay_result;
 751                 int attr = 0;
 752
 753                 if(!numentries)
 754                     onplay_result = onplay(NULL, 0, curr_context);
 755                 else {
 756 #ifdef HAVE_TAGCACHE
 757                     if (id3db)
 758                     {
 759                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 760                         {
 761                             attr = FILE_ATTR_AUDIO;
 762                             tagtree_get_filename(&tc, buf, sizeof(buf));
 763                         }
 764                         else
 765                             attr = ATTR_DIRECTORY;
 766                     }
 767                     else
 768 #endif
 769                     {
 770                         attr = dircache[tc.selected_item].attr;
 771
 772                         if (currdir[1]) /* Not in / */
 773                             snprintf(buf, sizeof buf, "%s/%s",
 774                                      currdir,
 775                                      dircache[tc.selected_item].name);
 776                         else /* In / */
 777                             snprintf(buf, sizeof buf, "/%s",
 778                                      dircache[tc.selected_item].name);
 779                     }
 780                     onplay_result = onplay(buf, attr, curr_context);
 781                 }
 782                 switch (onplay_result)
 783                 {
 784                     case ONPLAY_MAINMENU:
 785                         return GO_TO_ROOT;
 786
 787                     case ONPLAY_OK:
 788                         restore = true;
 789                         break;
 790
 791                     case ONPLAY_RELOAD_DIR:
 792                         reload_dir = true;
 793                         break;
 794
 795                     case ONPLAY_START_PLAY:
 796                         return GO_TO_WPS;
 797                         break;
 798                 }
 799                 break;
 800             }
 801
 802 #ifdef HAVE_HOTSWAP
 803             case SYS_FS_CHANGED:
 804 #ifdef HAVE_TAGCACHE
 805                 if (!id3db)
 806 #endif
 807                     reload_dir = true;
 808                 /* The 'dir no longer valid' situation will be caught later
 809                  * by checking the showdir() result. */
 810                 break;
 811 #endif
 812
 813             default:
 814                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 815                 {
 816                     if(*tc.dirfilter > NUM_FILTER_MODES)
 817                         /* leave sub-browsers after usb, doing otherwise
 818                            might be confusing to the user */
 819                         exit_func = true;
 820                     else
 821                         reload_dir = true;
 822                 }
 823                 break;
 824         }
 825         if (start_wps)
 826             return GO_TO_WPS;
 827         if (button && !IS_SYSEVENT(button))
 828         {
 829             storage_spin();
 830         }
 831
 832
 833     check_rescan:
 834         /* do we need to rescan dir? */
 835         if (reload_dir || reload_root ||
 836             lastfilter != *tc.dirfilter ||
 837             lastsortcase != global_settings.sort_case)
 838         {
 839             if (reload_root) {
 840                 strcpy(currdir, "/");
 841                 tc.dirlevel = 0;
 842 #ifdef HAVE_TAGCACHE
 843                 tc.currtable = 0;
 844                 tc.currextra = 0;
 845                 lasttable = -1;
 846                 lastextra = -1;
 847 #endif
 848                 reload_root = false;
 849             }
 850
 851             if (!reload_dir)
 852             {
 853                 gui_synclist_select_item(&tree_lists, 0);
 854                 gui_synclist_draw(&tree_lists);
 855                 tc.selected_item = 0;
 856                 lastdir[0] = 0;
 857             }
 858
 859             lastfilter = *tc.dirfilter;
 860             lastsortcase = global_settings.sort_case;
 861             restore = true;
 862         }
 863
 864         if (exit_func)
 865             return GO_TO_PREVIOUS;
 866
 867         if (restore || reload_dir) {
 868             /* restore display */
 869             numentries = update_dir();
 870             reload_dir = false;
 871             if (currdir[1] && (numentries < 0))
 872             {   /* not in root and reload failed */
 873                 reload_root = true; /* try root */
 874                 goto check_rescan;
 875             }
 876         }
 877     }
 878     return true;
 879 }
 880
 881 bool create_playlist(void)
 882 {
 883     char filename[MAX_PATH];
 884
 885     snprintf(filename, sizeof filename, "%s.m3u8",
 886              tc.currdir[1] ? tc.currdir : "/root");
 887     splashf(0, "%s %s", str(LANG_CREATING), filename);
 888
 889     trigger_cpu_boost();
 890     catalog_add_to_a_playlist(tc.currdir, ATTR_DIRECTORY, true, filename);
 891     cancel_cpu_boost();
 892
 893     return true;
 894 }
 895
 896 int rockbox_browse(const char *root, int dirfilter)
 897 {
 898     int ret_val = 0;
 899     int *last_filter = tc.dirfilter;
 900     tc.dirfilter = &dirfilter;
 901     tc.sort_dir = global_settings.sort_dir;
 902
 903     reload_dir = true;
 904     if (dirfilter >= NUM_FILTER_MODES)
 905     {
 906         static struct tree_context backup;
 907         int last_context;
 908
 909         backup = tc;
 910         tc.selected_item = 0;
 911         tc.dirlevel = 0;
 912         memcpy(tc.currdir, root, sizeof(tc.currdir));
 913         start_wps = false;
 914         last_context = curr_context;
 915
 916         ret_val = dirbrowse();
 917         tc = backup;
 918         curr_context = last_context;
 919     }
 920     else
 921     {
 922         static char buf[MAX_PATH];
 923         if (dirfilter != SHOW_ID3DB)
 924             tc.dirfilter = &global_settings.dirfilter;
 925         strcpy(buf,root);
 926         set_current_file(buf);
 927         ret_val = dirbrowse();
 928     }
 929     tc.dirfilter = last_filter;
 930     return ret_val;
 931 }
 932
 933 void tree_mem_init(void)
 934 {
 935     /* We copy the settings value in case it is changed by the user. We can't
 936        use it until the next reboot. */
 937     max_files = global_settings.max_files_in_dir;
 938
 939     /* initialize tree context struct */
 940     memset(&tc, 0, sizeof(tc));
 941     tc.dirfilter = &global_settings.dirfilter;
 942     tc.sort_dir = global_settings.sort_dir;
 943
 944     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
 945     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
 946
 947     tc.dircache_size = max_files * sizeof(struct entry);
 948     tc.dircache = buffer_alloc(tc.dircache_size);
 949     tree_get_filetypes(&filetypes, &filetypes_count);
 950 }
 951
 952 bool bookmark_play(char *resume_file, int index, int offset, int seed,
 953                    char *filename)
 954 {
 955     int i;
 956     char* suffix = strrchr(resume_file, '.');
 957     bool started = false;
 958
 959     if (suffix != NULL &&
 960         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
 961     {
 962         /* Playlist playback */
 963         char* slash;
 964         /* check that the file exists */
 965         if(!file_exists(resume_file))
 966             return false;
 967
 968         slash = strrchr(resume_file,'/');
 969         if (slash)
 970         {
 971             char* cp;
 972             *slash=0;
 973
 974             cp=resume_file;
 975             if (!cp[0])
 976                 cp="/";
 977
 978             if (playlist_create(cp, slash+1) != -1)
 979             {
 980                 if (global_settings.playlist_shuffle)
 981                     playlist_shuffle(seed, -1);
 982                 playlist_start(index,offset);
 983                 started = true;
 984             }
 985             *slash='/';
 986         }
 987     }
 988     else
 989     {
 990         /* Directory playback */
 991         lastdir[0]='\0';
 992         if (playlist_create(resume_file, NULL) != -1)
 993         {
 994             char* peek_filename;
 995             resume_directory(resume_file);
 996             if (global_settings.playlist_shuffle)
 997                 playlist_shuffle(seed, -1);
 998
 999             /* Check if the file is at the same spot in the directory,
1000                else search for it */
1001             peek_filename = playlist_peek(index);
1002
1003             if (peek_filename == NULL)
1004                 return false;
1005
1006             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1007             {
1008                 for ( i=0; i < playlist_amount(); i++ )
1009                 {
1010                     peek_filename = playlist_peek(i);
1011
1012                     if (peek_filename == NULL)
1013                         return false;
1014
1015                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1016                         break;
1017                 }
1018                 if (i < playlist_amount())
1019                     index = i;
1020                 else
1021                     return false;
1022             }
1023             playlist_start(index,offset);
1024             started = true;
1025         }
1026     }
1027
1028     if (started)
1029         start_wps = true;
1030     return started;
1031 }
1032
1033 static void say_filetype(int attr)
1034 {
1035     /* try to find a voice ID for the extension, if known */
1036     int j;
1037     attr &= FILE_ATTR_MASK; /* file type */
1038     for (j=0; j<filetypes_count; j++)
1039         if (attr == filetypes[j].tree_attr)
1040         {
1041             talk_id(filetypes[j].voiceclip, true);
1042             return;
1043         }
1044 }
1045
1046 static int ft_play_dirname(char* name)
1047 {
1048 #if CONFIG_CODEC != SWCODEC
1049     if (audio_status() & AUDIO_STATUS_PLAY)
1050         return 0;
1051 #endif
1052
1053     if(talk_file(tc.currdir, name, dir_thumbnail_name, NULL,
1054                  NULL, false))
1055     {
1056         if(global_settings.talk_filetype)
1057             talk_id(VOICE_DIR, true);
1058         return 1;
1059     }
1060     else
1061         return -1;
1062 }
1063
1064 static void ft_play_filename(char *dir, char *file)
1065 {
1066 #if CONFIG_CODEC != SWCODEC
1067     if (audio_status() & AUDIO_STATUS_PLAY)
1068         return;
1069 #endif
1070
1071     if (strlen(file) >= strlen(file_thumbnail_ext)
1072         && strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1073                       file_thumbnail_ext))
1074         /* file has no .talk extension */
1075         talk_file(dir, NULL, file, file_thumbnail_ext,
1076                   NULL, false);
1077     else
1078         /* it already is a .talk file, play this directly, but prefix it. */
1079         talk_file(dir, NULL, file, NULL,
1080                   TALK_IDARRAY(LANG_VOICE_DIR_HOVER), false);
1081 }
1082
1083 /* These two functions are called by the USB and shutdown handlers */
1084 void tree_flush(void)
1085 {
1086 #ifdef HAVE_TAGCACHE
1087     tagcache_shutdown();
1088 #endif
1089
1090 #ifdef HAVE_TC_RAMCACHE
1091     tagcache_unload_ramcache();
1092 #endif
1093
1094 #ifdef HAVE_DIRCACHE
1095     {
1096         int old_val = global_status.dircache_size;
1097         if (global_settings.dircache)
1098         {
1099             if (!dircache_is_initializing())
1100                 global_status.dircache_size = dircache_get_cache_size();
1101 # ifdef HAVE_EEPROM_SETTINGS
1102             if (firmware_settings.initialized)
1103                 dircache_save();
1104 # endif
1105             dircache_disable();
1106         }
1107         else
1108         {
1109             global_status.dircache_size = 0;
1110         }
1111         if (old_val != global_status.dircache_size)
1112             status_save();
1113     }
1114 #endif
1115 }
1116
1117 void tree_restore(void)
1118 {
1119 #ifdef HAVE_EEPROM_SETTINGS
1120     firmware_settings.disk_clean = false;
1121 #endif
1122
1123 #ifdef HAVE_TC_RAMCACHE
1124     remove(TAGCACHE_STATEFILE);
1125 #endif
1126
1127 #ifdef HAVE_DIRCACHE
1128     remove(DIRCACHE_FILE);
1129     if (global_settings.dircache)
1130     {
1131         /* Print "Scanning disk..." to the display. */
1132         splash(0, str(LANG_SCANNING_DISK));
1133
1134         dircache_build(global_status.dircache_size);
1135     }
1136 #endif
1137 #ifdef HAVE_TAGCACHE
1138     tagcache_start_scan();
1139 #endif
1140 }