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 <stdlib.h>
  23 #include <stdbool.h>
  24 #include "string-extra.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 "audio.h"
  36 #include "playlist.h"
  37 #include "menu.h"
  38 #include "skin_engine/skin_engine.h"
  39 #include "settings.h"
  40 #include "debug.h"
  41 #include "storage.h"
  42 #include "rolo.h"
  43 #include "icons.h"
  44 #include "lang.h"
  45 #include "screens.h"
  46 #include "keyboard.h"
  47 #include "bookmark.h"
  48 #include "onplay.h"
  49 #include "buffer.h"
  50 #include "power.h"
  51 #include "action.h"
  52 #include "talk.h"
  53 #include "filetypes.h"
  54 #include "misc.h"
  55 #include "filetree.h"
  56 #include "tagtree.h"
  57 #ifdef HAVE_RECORDING
  58 #include "recorder/recording.h"
  59 #endif
  60 #include "rtc.h"
  61 #include "dircache.h"
  62 #ifdef HAVE_TAGCACHE
  63 #include "tagcache.h"
  64 #endif
  65 #include "yesno.h"
  66 #include "eeprom_settings.h"
  67 #include "playlist_catalog.h"
  68
  69 /* gui api */
  70 #include "list.h"
  71 #include "splash.h"
  72 #include "buttonbar.h"
  73 #include "quickscreen.h"
  74 #include "appevents.h"
  75
  76 #include "root_menu.h"
  77
  78 static const struct filetype *filetypes;
  79 static int filetypes_count;
  80
  81 struct gui_synclist tree_lists;
  82
  83 /* I put it here because other files doesn't use it yet,
  84  * but should be elsewhere since it will be used mostly everywhere */
  85 #ifdef HAVE_BUTTONBAR
  86 static struct gui_buttonbar tree_buttonbar;
  87 #endif
  88 static struct tree_context tc;
  89
  90 bool boot_changed = false;
  91
  92 char lastfile[MAX_PATH];
  93 static char lastdir[MAX_PATH];
  94 #ifdef HAVE_TAGCACHE
  95 static int lasttable, lastextra, lastfirstpos;
  96 #endif
  97 static int max_files = 0;
  98
  99 static bool reload_dir = false;
 100
 101 static bool start_wps = false;
 102 static int curr_context = false;/* id3db or tree*/
 103
 104 static int dirbrowse(void);
 105 static int ft_play_dirname(char* name);
 106 static void ft_play_filename(char *dir, char *file);
 107 static void say_filetype(int attr);
 108
 109 static const char* tree_get_filename(int selected_item, void *data,
 110                                      char *buffer, size_t buffer_len)
 111 {
 112     struct tree_context * local_tc=(struct tree_context *)data;
 113     char *name;
 114     int attr=0;
 115     bool stripit = false;
 116 #ifdef HAVE_TAGCACHE
 117     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 118
 119     if (id3db)
 120     {
 121         return tagtree_get_entry(&tc, selected_item)->name;
 122     }
 123     else
 124 #endif
 125     {
 126         struct entry* dc = local_tc->dircache;
 127         struct entry* e = &dc[selected_item];
 128         name = e->name;
 129         attr = e->attr;
 130     }
 131
 132     if(!(attr & ATTR_DIRECTORY))
 133     {
 134         switch(global_settings.show_filename_ext)
 135         {
 136             case 0:
 137                 /* show file extension: off */
 138                 stripit = true;
 139                 break;
 140             case 1:
 141                 /* show file extension: on */
 142                 break;
 143             case 2:
 144                 /* show file extension: only unknown types */
 145                 stripit = filetype_supported(attr);
 146                 break;
 147             case 3:
 148             default:
 149                 /* show file extension: only when viewing all */
 150                 stripit = (*(local_tc->dirfilter) != SHOW_ID3DB) &&
 151                           (*(local_tc->dirfilter) != SHOW_ALL);
 152                 break;
 153         }
 154     }
 155
 156     if(stripit)
 157     {
 158         return(strip_extension(buffer, buffer_len, name));
 159     }
 160     return(name);
 161 }
 162
 163 #ifdef HAVE_LCD_COLOR
 164 static int tree_get_filecolor(int selected_item, void * data)
 165 {
 166     if (*tc.dirfilter == SHOW_ID3DB)
 167         return -1;
 168     struct tree_context * local_tc=(struct tree_context *)data;
 169     struct entry* dc = local_tc->dircache;
 170     struct entry* e = &dc[selected_item];
 171     return filetype_get_color(e->name, e->attr);
 172 }
 173 #endif
 174
 175 static enum themable_icons tree_get_fileicon(int selected_item, void * data)
 176 {
 177     struct tree_context * local_tc=(struct tree_context *)data;
 178 #ifdef HAVE_TAGCACHE
 179     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 180     if (id3db) {
 181         return tagtree_get_icon(&tc);
 182     }
 183     else
 184 #endif
 185         {
 186         struct entry* dc = local_tc->dircache;
 187         struct entry* e = &dc[selected_item];
 188         return filetype_get_icon(e->attr);
 189     }
 190 }
 191
 192 static int tree_voice_cb(int selected_item, void * data)
 193 {
 194     struct tree_context * local_tc=(struct tree_context *)data;
 195     char *name;
 196     int attr=0;
 197 #ifdef HAVE_TAGCACHE
 198     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 199
 200     if (id3db)
 201     {
 202         attr = tagtree_get_attr(local_tc);
 203         name = tagtree_get_entry(local_tc, selected_item)->name;
 204     }
 205     else
 206 #endif
 207     {
 208         struct entry* dc = local_tc->dircache;
 209         struct entry* e = &dc[selected_item];
 210         name = e->name;
 211         attr = e->attr;
 212     }
 213     bool is_dir = (attr & ATTR_DIRECTORY);
 214     bool did_clip = false;
 215     /* First the .talk clip case */
 216     if(is_dir)
 217     {
 218         if(global_settings.talk_dir_clip)
 219         {
 220             did_clip = true;
 221             if(ft_play_dirname(name) <0)
 222                 /* failed, not existing */
 223                 did_clip = false;
 224         }
 225     } else { /* it's a file */
 226         if (global_settings.talk_file_clip && (attr & FILE_ATTR_THUMBNAIL))
 227         {
 228             did_clip = true;
 229             ft_play_filename(local_tc->currdir, name);
 230         }
 231     }
 232     if(!did_clip)
 233     {
 234         /* say the number or spell if required or as a fallback */
 235         switch (is_dir ? global_settings.talk_dir : global_settings.talk_file)
 236         {
 237         case 1: /* as numbers */
 238             talk_id(is_dir ? VOICE_DIR : VOICE_FILE, false);
 239             talk_number(selected_item+1        - (is_dir ? 0 : local_tc->dirsindir),
 240                         true);
 241             if(global_settings.talk_filetype
 242                && !is_dir && *local_tc->dirfilter < NUM_FILTER_MODES)
 243                 say_filetype(attr);
 244             break;
 245         case 2: /* spelled */
 246             talk_shutup();
 247             if(global_settings.talk_filetype)
 248             {
 249                 if(is_dir)
 250                     talk_id(VOICE_DIR, true);
 251                 else if(*local_tc->dirfilter < NUM_FILTER_MODES)
 252                     say_filetype(attr);
 253             }
 254             talk_spell(name, true);
 255             break;
 256         }
 257     }
 258     return 0;
 259 }
 260
 261 bool check_rockboxdir(void)
 262 {
 263     char path[MAX_PATH];
 264     if(!dir_exists(get_user_file_path(ROCKBOX_DIR, 0, path, sizeof(path))))
 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,
 299                                     global_settings.show_icons?&tree_get_fileicon:NULL);
 300 #ifdef HAVE_LCD_COLOR
 301     gui_synclist_set_color_callback(&tree_lists, &tree_get_filecolor);
 302 #endif
 303 }
 304
 305
 306 /* drawer function for the GUI_EVENT_REDRAW callback */
 307 void tree_drawlists(void)
 308 {
 309     /* band-aid to fix the bar/list redrawing properly after leaving a plugin */
 310     send_event(GUI_EVENT_THEME_CHANGED, NULL);
 311     /* end bandaid */
 312     gui_synclist_draw(&tree_lists);
 313 }
 314
 315
 316 struct tree_context* tree_get_context(void)
 317 {
 318     return &tc;
 319 }
 320
 321 /*
 322  * Returns the position of a given file in the current directory
 323  * returns -1 if not found
 324  */
 325 static int tree_get_file_position(char * filename)
 326 {
 327     int i;
 328
 329     /* use lastfile to determine the selected item (default=0) */
 330     for (i=0; i < tc.filesindir; i++)
 331     {
 332         struct entry* dc = tc.dircache;
 333         struct entry* e = &dc[i];
 334         if (!strcasecmp(e->name, filename))
 335             return(i);
 336     }
 337     return(-1);/* no file can match, returns undefined */
 338 }
 339
 340 /*
 341  * Called when a new dir is loaded (for example when returning from other apps ...)
 342  * also completely redraws the tree
 343  */
 344 static int update_dir(void)
 345 {
 346     bool changed = false;
 347 #ifdef HAVE_TAGCACHE
 348     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 349     /* Checks for changes */
 350     if (id3db) {
 351         if (tc.currtable != lasttable ||
 352             tc.currextra != lastextra ||
 353             tc.firstpos  != lastfirstpos ||
 354             reload_dir)
 355         {
 356             if (tagtree_load(&tc) < 0)
 357                 return -1;
 358
 359             lasttable = tc.currtable;
 360             lastextra = tc.currextra;
 361             lastfirstpos = tc.firstpos;
 362             changed = true;
 363         }
 364     }
 365     else
 366 #endif
 367     {
 368         /* if the tc.currdir has been changed, reload it ...*/
 369         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir)
 370         {
 371             if (ft_load(&tc, NULL) < 0)
 372                 return -1;
 373             strcpy(lastdir, tc.currdir);
 374             changed = true;
 375         }
 376     }
 377     /* if selected item is undefined */
 378     if (tc.selected_item == -1)
 379     {
 380         /* use lastfile to determine the selected item */
 381         tc.selected_item = tree_get_file_position(lastfile);
 382
 383         /* If the file doesn't exists, select the first one (default) */
 384         if(tc.selected_item < 0)
 385             tc.selected_item = 0;
 386         changed = true;
 387     }
 388     if (changed)
 389     {
 390         if(
 391 #ifdef HAVE_TAGCACHE
 392         !id3db &&
 393 #endif
 394         (tc.dirfull || tc.filesindir == global_settings.max_files_in_dir) )
 395         {
 396             splash(HZ, ID2P(LANG_SHOWDIR_BUFFER_FULL));
 397         }
 398     }
 399 #ifdef HAVE_TAGCACHE
 400     if (id3db)
 401     {
 402 #ifdef HAVE_LCD_BITMAP
 403         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 404             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 405         {
 406             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 407                 filetype_get_icon(ATTR_DIRECTORY));
 408         }
 409         else
 410         {
 411             /* Must clear the title as the list is reused */
 412             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 413         }
 414 #endif
 415     }
 416     else
 417 #endif
 418     {
 419 #ifdef HAVE_LCD_BITMAP
 420         if (global_settings.show_path_in_browser &&
 421             *(tc.dirfilter) == SHOW_PLUGINS)
 422         {
 423             char *title;
 424             if (!strcmp(tc.currdir, PLUGIN_GAMES_DIR))
 425                 title = str(LANG_PLUGIN_GAMES);
 426             else if (!strcmp(tc.currdir, PLUGIN_APPS_DIR))
 427                 title = str(LANG_PLUGIN_APPS);
 428             else if (!strcmp(tc.currdir, PLUGIN_DEMOS_DIR))
 429                 title = str(LANG_PLUGIN_DEMOS);
 430             else title = str(LANG_PLUGINS);
 431             gui_synclist_set_title(&tree_lists, title, Icon_Plugin);
 432         }
 433         else if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 434         {
 435             gui_synclist_set_title(&tree_lists, tc.currdir,
 436                 filetype_get_icon(ATTR_DIRECTORY));
 437         }
 438         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 439         {
 440             char *title = strrchr(tc.currdir, '/') + 1;
 441             if (*title == '\0')
 442             {
 443                 /* Display "Files" for the root dir */
 444                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 445                     filetype_get_icon(ATTR_DIRECTORY));
 446             }
 447             else
 448                 gui_synclist_set_title(&tree_lists, title,
 449                     filetype_get_icon(ATTR_DIRECTORY));
 450         }
 451         else
 452         {
 453             /* Must clear the title as the list is reused */
 454             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 455         }
 456 #endif
 457     }
 458
 459     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 460     gui_synclist_set_icon_callback(&tree_lists,
 461                                    global_settings.show_icons?tree_get_fileicon:NULL);
 462     if( tc.selected_item >= tc.filesindir)
 463         tc.selected_item=tc.filesindir-1;
 464
 465     gui_synclist_select_item(&tree_lists, tc.selected_item);
 466 #ifdef HAVE_BUTTONBAR
 467     if (global_settings.buttonbar) {
 468         if (*tc.dirfilter < NUM_FILTER_MODES)
 469             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 470                           str(LANG_SYSFONT_DIRBROWSE_F2),
 471                           str(LANG_SYSFONT_DIRBROWSE_F3));
 472         else
 473             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 474         gui_buttonbar_draw(&tree_buttonbar);
 475     }
 476 #endif
 477     gui_synclist_draw(&tree_lists);
 478     gui_synclist_speak_item(&tree_lists);
 479     return tc.filesindir;
 480 }
 481
 482 /* load tracks from specified directory to resume play */
 483 void resume_directory(const char *dir)
 484 {
 485     int dirfilter = *tc.dirfilter;
 486     int ret;
 487 #ifdef HAVE_TAGCACHE
 488     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 489 #endif
 490     /* make sure the dirfilter is sane. The only time it should be possible
 491      * thats its not is when resume playlist is called from a plugin
 492      */
 493 #ifdef HAVE_TAGCACHE
 494     if (!id3db)
 495 #endif
 496         *tc.dirfilter = global_settings.dirfilter;
 497     ret = ft_load(&tc, dir);
 498     *tc.dirfilter = dirfilter;
 499     if (ret < 0)
 500         return;
 501     lastdir[0] = 0;
 502
 503     ft_build_playlist(&tc, 0);
 504
 505 #ifdef HAVE_TAGCACHE
 506     if (id3db)
 507         tagtree_load(&tc);
 508 #endif
 509 }
 510
 511 /* Returns the current working directory and also writes cwd to buf if
 512    non-NULL.  In case of error, returns NULL. */
 513 char *getcwd(char *buf, int size)
 514 {
 515     if (!buf)
 516         return tc.currdir;
 517     else if (size > 0)
 518     {
 519         strlcpy(buf, tc.currdir, size);
 520         return buf;
 521     }
 522     else
 523         return NULL;
 524 }
 525
 526 /* Force a reload of the directory next time directory browser is called */
 527 void reload_directory(void)
 528 {
 529     reload_dir = true;
 530 }
 531
 532 void get_current_file(char* buffer, int buffer_len)
 533 {
 534 #ifdef HAVE_TAGCACHE
 535     /* in ID3DB mode it is a bad idea to call this function */
 536     /* (only happens with `follow playlist') */
 537     if( *tc.dirfilter == SHOW_ID3DB )
 538         return;
 539 #endif
 540
 541     struct entry* dc = tc.dircache;
 542     struct entry* e = &dc[tc.selected_item];
 543     snprintf(buffer, buffer_len, "%s/%s", getcwd(NULL,0),
 544                                           tc.dirlength ? e->name : "");
 545 }
 546
 547 /* Allow apps to change our dirfilter directly (required for sub browsers)
 548    if they're suddenly going to become a file browser for example */
 549 void set_dirfilter(int l_dirfilter)
 550 {
 551     *tc.dirfilter = l_dirfilter;
 552 }
 553
 554 /* Selects a file and update tree context properly */
 555 void set_current_file(char *path)
 556 {
 557     char *name;
 558     int i;
 559
 560 #ifdef HAVE_TAGCACHE
 561     /* in ID3DB mode it is a bad idea to call this function */
 562     /* (only happens with `follow playlist') */
 563     if( *tc.dirfilter == SHOW_ID3DB )
 564         return;
 565 #endif
 566
 567     /* separate directory from filename */
 568     /* gets the directory's name and put it into tc.currdir */
 569     name = strrchr(path+1,'/');
 570     if (name)
 571     {
 572         *name = 0;
 573         strcpy(tc.currdir, path);
 574         *name = '/';
 575         name++;
 576     }
 577     else
 578     {
 579         strcpy(tc.currdir, "/");
 580         name = path+1;
 581     }
 582
 583     strcpy(lastfile, name);
 584
 585
 586     /* If we changed dir we must recalculate the dirlevel
 587        and adjust the selected history properly */
 588     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 589     {
 590         tc.dirlevel =  0;
 591         tc.selected_item_history[tc.dirlevel] = -1;
 592
 593         /* use '/' to calculate dirlevel */
 594         for (i = 1; path[i] != '\0'; i++)
 595         {
 596             if (path[i] == '/')
 597             {
 598                 tc.dirlevel++;
 599                 tc.selected_item_history[tc.dirlevel] = -1;
 600             }
 601         }
 602     }
 603     if (ft_load(&tc, NULL) >= 0)
 604     {
 605         tc.selected_item = tree_get_file_position(lastfile);
 606     }
 607 }
 608
 609
 610 /* main loop, handles key events */
 611 static int dirbrowse()
 612 {
 613     int numentries=0;
 614     char buf[MAX_PATH];
 615     int button, oldbutton;
 616     bool reload_root = false;
 617     int lastfilter = *tc.dirfilter;
 618     bool lastsortcase = global_settings.sort_case;
 619     bool exit_func = false;
 620
 621     char* currdir = tc.currdir; /* just a shortcut */
 622 #ifdef HAVE_TAGCACHE
 623     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 624
 625     if (id3db)
 626         curr_context=CONTEXT_ID3DB;
 627     else
 628 #endif
 629         curr_context=CONTEXT_TREE;
 630     if (tc.selected_item < 0)
 631         tc.selected_item = 0;
 632 #ifdef HAVE_TAGCACHE
 633     tc.firstpos = 0;
 634     lasttable = -1;
 635     lastextra = -1;
 636     lastfirstpos = 0;
 637 #endif
 638
 639     start_wps = false;
 640     numentries = update_dir();
 641     reload_dir = false;
 642     if (numentries == -1)
 643         return GO_TO_PREVIOUS;  /* currdir is not a directory */
 644
 645     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 646     {
 647         splash(HZ*2, ID2P(LANG_NO_FILES));
 648         return GO_TO_PREVIOUS;  /* No files found for rockbox_browser() */
 649     }
 650
 651     gui_synclist_draw(&tree_lists);
 652     while(1) {
 653         struct entry *dircache = tc.dircache;
 654         bool restore = false;
 655         if (tc.dirlevel < 0)
 656             tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 657 #ifdef BOOTFILE
 658         if (boot_changed) {
 659             static const char *lines[]={ID2P(LANG_BOOT_CHANGED), ID2P(LANG_REBOOT_NOW)};
 660             static const struct text_message message={lines, 2};
 661             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 662                 rolo_load("/" BOOTFILE);
 663             restore = true;
 664             boot_changed = false;
 665         }
 666 #endif
 667         button = get_action(CONTEXT_TREE,
 668                             list_do_action_timeout(&tree_lists, HZ/2));
 669         oldbutton = button;
 670         gui_synclist_do_button(&tree_lists, &button,LIST_WRAP_UNLESS_HELD);
 671         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 672         switch ( button ) {
 673             case ACTION_STD_OK:
 674                 /* nothing to do if no files to display */
 675                 if ( numentries == 0 )
 676                     break;
 677
 678 #ifdef HAVE_TAGCACHE
 679                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 680 #else
 681                 switch (ft_enter(&tc))
 682 #endif
 683                 {
 684                     case 1: reload_dir = true; break;
 685                     case 2: start_wps = true; break;
 686                     case 3: exit_func = true; break;
 687                     default: break;
 688                 }
 689                 restore = true;
 690                 break;
 691
 692             case ACTION_STD_CANCEL:
 693                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 694                     exit_func = true;
 695                     break;
 696                 }
 697                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 698                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 699                 {
 700 #ifdef HAVE_LCD_BITMAP /* charcell doesnt have ACTION_TREE_PGLEFT so this isnt needed */
 701                     if (oldbutton == ACTION_TREE_PGLEFT)
 702                         break;
 703                     else
 704 #endif
 705                         return GO_TO_ROOT;
 706                 }
 707
 708 #ifdef HAVE_TAGCACHE
 709                 if (id3db)
 710                     tagtree_exit(&tc);
 711                 else
 712 #endif
 713                     if (ft_exit(&tc) == 3)
 714                         exit_func = true;
 715
 716                 restore = true;
 717                 break;
 718
 719             case ACTION_TREE_STOP:
 720                 if (list_stop_handler())
 721                     restore = true;
 722                 break;
 723
 724             case ACTION_STD_MENU:
 725                 return GO_TO_ROOT;
 726                 break;
 727
 728 #ifdef HAVE_RECORDING
 729             case ACTION_STD_REC:
 730                 return GO_TO_RECSCREEN;
 731 #endif
 732
 733             case ACTION_TREE_WPS:
 734                 return GO_TO_PREVIOUS_MUSIC;
 735                 break;
 736 #ifdef HAVE_QUICKSCREEN
 737             case ACTION_STD_QUICKSCREEN:
 738                 /* don't enter f2 from plugin browser */
 739                 if (*tc.dirfilter < NUM_FILTER_MODES)
 740                 {
 741                     if (quick_screen_quick(button))
 742                         reload_dir = true;
 743                     restore = true;
 744                 }
 745                 break;
 746 #endif
 747 #ifdef BUTTON_F3
 748             case ACTION_F3:
 749                 /* don't enter f3 from plugin browser */
 750                 if (*tc.dirfilter < NUM_FILTER_MODES)
 751                 {
 752                     if (quick_screen_f3(ACTION_F3))
 753                         reload_dir = true;
 754                     restore = true;
 755                 }
 756                 break;
 757 #endif
 758
 759 #ifdef HAVE_HOTKEY
 760             case ACTION_TREE_HOTKEY:
 761                 if (!global_settings.hotkey_tree)
 762                     break;
 763                 /* fall through */
 764 #endif
 765             case ACTION_STD_CONTEXT:
 766             {
 767                 bool hotkey = button == ACTION_TREE_HOTKEY;
 768                 int onplay_result;
 769                 int attr = 0;
 770
 771                 if(!numentries)
 772                     onplay_result = onplay(NULL, 0, curr_context, hotkey);
 773                 else {
 774 #ifdef HAVE_TAGCACHE
 775                     if (id3db)
 776                     {
 777                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 778                         {
 779                             attr = FILE_ATTR_AUDIO;
 780                             tagtree_get_filename(&tc, buf, sizeof(buf));
 781                         }
 782                         else
 783                             attr = ATTR_DIRECTORY;
 784                     }
 785                     else
 786 #endif
 787                     {
 788                         attr = dircache[tc.selected_item].attr;
 789
 790                         if (currdir[1]) /* Not in / */
 791                             snprintf(buf, sizeof buf, "%s/%s",
 792                                      currdir,
 793                                      dircache[tc.selected_item].name);
 794                         else /* In / */
 795                             snprintf(buf, sizeof buf, "/%s",
 796                                      dircache[tc.selected_item].name);
 797                     }
 798                     onplay_result = onplay(buf, attr, curr_context, hotkey);
 799                 }
 800                 switch (onplay_result)
 801                 {
 802                     case ONPLAY_MAINMENU:
 803                         return GO_TO_ROOT;
 804
 805                     case ONPLAY_OK:
 806                         restore = true;
 807                         break;
 808
 809                     case ONPLAY_RELOAD_DIR:
 810                         reload_dir = true;
 811                         break;
 812
 813                     case ONPLAY_START_PLAY:
 814                         return GO_TO_WPS;
 815                         break;
 816                 }
 817                 break;
 818             }
 819
 820 #ifdef HAVE_HOTSWAP
 821             case SYS_FS_CHANGED:
 822 #ifdef HAVE_TAGCACHE
 823                 if (!id3db)
 824 #endif
 825                     reload_dir = true;
 826                 /* The 'dir no longer valid' situation will be caught later
 827                  * by checking the showdir() result. */
 828                 break;
 829 #endif
 830
 831             default:
 832                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 833                 {
 834                     if(*tc.dirfilter > NUM_FILTER_MODES)
 835                         /* leave sub-browsers after usb, doing otherwise
 836                            might be confusing to the user */
 837                         exit_func = true;
 838                     else
 839                         reload_dir = true;
 840                 }
 841                 break;
 842         }
 843         if (start_wps)
 844             return GO_TO_WPS;
 845         if (button && !IS_SYSEVENT(button))
 846         {
 847             storage_spin();
 848         }
 849
 850
 851     check_rescan:
 852         /* do we need to rescan dir? */
 853         if (reload_dir || reload_root ||
 854             lastfilter != *tc.dirfilter ||
 855             lastsortcase != global_settings.sort_case)
 856         {
 857             if (reload_root) {
 858                 strcpy(currdir, "/");
 859                 tc.dirlevel = 0;
 860 #ifdef HAVE_TAGCACHE
 861                 tc.currtable = 0;
 862                 tc.currextra = 0;
 863                 lasttable = -1;
 864                 lastextra = -1;
 865 #endif
 866                 reload_root = false;
 867             }
 868
 869             if (!reload_dir)
 870             {
 871                 gui_synclist_select_item(&tree_lists, 0);
 872                 gui_synclist_draw(&tree_lists);
 873                 tc.selected_item = 0;
 874                 lastdir[0] = 0;
 875             }
 876
 877             lastfilter = *tc.dirfilter;
 878             lastsortcase = global_settings.sort_case;
 879             restore = true;
 880         }
 881
 882         if (exit_func)
 883             return GO_TO_PREVIOUS;
 884
 885         if (restore || reload_dir) {
 886             /* restore display */
 887             numentries = update_dir();
 888             reload_dir = false;
 889             if (currdir[1] && (numentries < 0))
 890             {   /* not in root and reload failed */
 891                 reload_root = true; /* try root */
 892                 goto check_rescan;
 893             }
 894         }
 895     }
 896     return true;
 897 }
 898
 899 bool create_playlist(void)
 900 {
 901     char filename[MAX_PATH];
 902
 903     snprintf(filename, sizeof filename, "%s.m3u8",
 904              tc.currdir[1] ? tc.currdir : "/root");
 905     splashf(0, "%s %s", str(LANG_CREATING), filename);
 906
 907     trigger_cpu_boost();
 908     catalog_add_to_a_playlist(tc.currdir, ATTR_DIRECTORY, true, filename);
 909     cancel_cpu_boost();
 910
 911     return true;
 912 }
 913
 914 int rockbox_browse(const char *root, int dirfilter)
 915 {
 916     int ret_val = 0;
 917     int *last_filter = tc.dirfilter;
 918     tc.dirfilter = &dirfilter;
 919     tc.sort_dir = global_settings.sort_dir;
 920
 921     reload_dir = true;
 922     if (dirfilter >= NUM_FILTER_MODES)
 923     {
 924         static struct tree_context backup;
 925         char current[MAX_PATH];
 926         int last_context;
 927
 928         backup = tc;
 929         tc.selected_item = 0;
 930         tc.dirlevel = 0;
 931         memcpy(tc.currdir, root, sizeof(tc.currdir));
 932         start_wps = false;
 933         last_context = curr_context;
 934
 935         /* Center on the currently loaded language when browsing languages. */
 936         if (dirfilter == SHOW_LNG)
 937         {
 938             if (global_settings.lang_file[0])
 939             {
 940                 snprintf(current, sizeof(current), LANG_DIR "/%s.lng",
 941                         global_settings.lang_file);
 942             }
 943             else
 944             {
 945                 strlcpy(current, LANG_DIR "/english.lng", sizeof(current));
 946             }
 947         }
 948         /* Center on currently loaded WPS */
 949         else if (dirfilter == SHOW_WPS)
 950         {
 951             snprintf(current, sizeof(current), WPS_DIR "/%s.wps",
 952                     global_settings.wps_file);
 953         }
 954 #ifdef HAVE_REMOTE_LCD
 955         /* Center on currently loaded RWPS */
 956         else if (dirfilter == SHOW_RWPS)
 957         {
 958             snprintf(current, sizeof(current), WPS_DIR "/%s.rwps",
 959                     global_settings.rwps_file);
 960         }
 961         else if (dirfilter == SHOW_RSBS)
 962         {
 963             snprintf(current, sizeof(current), SBS_DIR "/%s.rsbs",
 964                     global_settings.rsbs_file);
 965         }
 966 #endif
 967 #ifdef HAVE_LCD_BITMAP
 968         /* Center on the currently loaded font when browsing fonts */
 969         else if (dirfilter == SHOW_FONT)
 970         {
 971             snprintf(current, sizeof(current), FONT_DIR "/%s.fnt",
 972                     global_settings.font_file);
 973         }
 974         else if (dirfilter == SHOW_SBS)
 975         {
 976             snprintf(current, sizeof(current), SBS_DIR "/%s.sbs",
 977                     global_settings.sbs_file);
 978         }
 979 #endif
 980 #if CONFIG_TUNER
 981         /* Center on the currently loaded FM preset when browsing those */
 982         else if (dirfilter == SHOW_FMR)
 983         {
 984             snprintf(current, sizeof(current), FMPRESET_PATH "/%s.fmr",
 985                     global_settings.fmr_file);
 986         }
 987 #endif
 988         else /* reset current[] */
 989             current[0] = '\0';
 990
 991         /* If we've found a file to center on, do it */
 992         if (current[0] == '/')
 993         {
 994             set_current_file(current);
 995             /* set_current_file changes dirlevel, change it back */
 996             tc.dirlevel = 0;
 997         }
 998
 999         ret_val = dirbrowse();
1000         tc = backup;
1001         curr_context = last_context;
1002     }
1003     else
1004     {
1005         static char buf[MAX_PATH];
1006         if (dirfilter != SHOW_ID3DB)
1007             tc.dirfilter = &global_settings.dirfilter;
1008         strcpy(buf,root);
1009         set_current_file(buf);
1010         ret_val = dirbrowse();
1011     }
1012     tc.dirfilter = last_filter;
1013     return ret_val;
1014 }
1015
1016 void tree_mem_init(void)
1017 {
1018     /* We copy the settings value in case it is changed by the user. We can't
1019        use it until the next reboot. */
1020     max_files = global_settings.max_files_in_dir;
1021
1022     /* initialize tree context struct */
1023     memset(&tc, 0, sizeof(tc));
1024     tc.dirfilter = &global_settings.dirfilter;
1025     tc.sort_dir = global_settings.sort_dir;
1026
1027     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
1028     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
1029
1030     tc.dircache_size = max_files * sizeof(struct entry);
1031     tc.dircache = buffer_alloc(tc.dircache_size);
1032     tree_get_filetypes(&filetypes, &filetypes_count);
1033 }
1034
1035 bool bookmark_play(char *resume_file, int index, int offset, int seed,
1036                    char *filename)
1037 {
1038     int i;
1039     char* suffix = strrchr(resume_file, '.');
1040     bool started = false;
1041
1042     if (suffix != NULL &&
1043         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
1044     {
1045         /* Playlist playback */
1046         char* slash;
1047         /* check that the file exists */
1048         if(!file_exists(resume_file))
1049             return false;
1050
1051         slash = strrchr(resume_file,'/');
1052         if (slash)
1053         {
1054             char* cp;
1055             *slash=0;
1056
1057             cp=resume_file;
1058             if (!cp[0])
1059                 cp="/";
1060
1061             if (playlist_create(cp, slash+1) != -1)
1062             {
1063                 if (global_settings.playlist_shuffle)
1064                     playlist_shuffle(seed, -1);
1065                 playlist_start(index,offset);
1066                 started = true;
1067             }
1068             *slash='/';
1069         }
1070     }
1071     else
1072     {
1073         /* Directory playback */
1074         lastdir[0]='\0';
1075         if (playlist_create(resume_file, NULL) != -1)
1076         {
1077             const char* peek_filename;
1078             resume_directory(resume_file);
1079             if (global_settings.playlist_shuffle)
1080                 playlist_shuffle(seed, -1);
1081
1082             /* Check if the file is at the same spot in the directory,
1083                else search for it */
1084             peek_filename = playlist_peek(index);
1085
1086             if (peek_filename == NULL)
1087             {
1088                 /* playlist has shrunk, search from the top */
1089                 index = 0;
1090                 peek_filename = playlist_peek(index);
1091                 if (peek_filename == NULL)
1092                     return false;
1093             }
1094
1095             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1096             {
1097                 for ( i=0; i < playlist_amount(); i++ )
1098                 {
1099                     peek_filename = playlist_peek(i);
1100
1101                     if (peek_filename == NULL)
1102                         return false;
1103
1104                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1105                         break;
1106                 }
1107                 if (i < playlist_amount())
1108                     index = i;
1109                 else
1110                     return false;
1111             }
1112             playlist_start(index,offset);
1113             started = true;
1114         }
1115     }
1116
1117     if (started)
1118         start_wps = true;
1119     return started;
1120 }
1121
1122 static void say_filetype(int attr)
1123 {
1124     /* try to find a voice ID for the extension, if known */
1125     int j;
1126     attr &= FILE_ATTR_MASK; /* file type */
1127     for (j=0; j<filetypes_count; j++)
1128         if (attr == filetypes[j].tree_attr)
1129         {
1130             talk_id(filetypes[j].voiceclip, true);
1131             return;
1132         }
1133 }
1134
1135 static int ft_play_dirname(char* name)
1136 {
1137 #if CONFIG_CODEC != SWCODEC
1138     if (audio_status() & AUDIO_STATUS_PLAY)
1139         return 0;
1140 #endif
1141
1142     if(talk_file(tc.currdir, name, dir_thumbnail_name, NULL,
1143                  NULL, false))
1144     {
1145         if(global_settings.talk_filetype)
1146             talk_id(VOICE_DIR, true);
1147         return 1;
1148     }
1149     else
1150         return -1;
1151 }
1152
1153 static void ft_play_filename(char *dir, char *file)
1154 {
1155 #if CONFIG_CODEC != SWCODEC
1156     if (audio_status() & AUDIO_STATUS_PLAY)
1157         return;
1158 #endif
1159
1160     if (strlen(file) >= strlen(file_thumbnail_ext)
1161         && strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1162                       file_thumbnail_ext))
1163         /* file has no .talk extension */
1164         talk_file(dir, NULL, file, file_thumbnail_ext,
1165                   NULL, false);
1166     else
1167         /* it already is a .talk file, play this directly, but prefix it. */
1168         talk_file(dir, NULL, file, NULL,
1169                   TALK_IDARRAY(LANG_VOICE_DIR_HOVER), false);
1170 }
1171
1172 /* These two functions are called by the USB and shutdown handlers */
1173 void tree_flush(void)
1174 {
1175 #ifdef HAVE_TAGCACHE
1176     tagcache_shutdown();
1177 #endif
1178
1179 #ifdef HAVE_TC_RAMCACHE
1180     tagcache_unload_ramcache();
1181 #endif
1182
1183 #ifdef HAVE_DIRCACHE
1184     {
1185         int old_val = global_status.dircache_size;
1186         if (global_settings.dircache)
1187         {
1188             if (!dircache_is_initializing())
1189                 global_status.dircache_size = dircache_get_cache_size();
1190 # ifdef HAVE_EEPROM_SETTINGS
1191             if (firmware_settings.initialized)
1192                 dircache_save();
1193 # endif
1194             dircache_disable();
1195         }
1196         else
1197         {
1198             global_status.dircache_size = 0;
1199         }
1200         if (old_val != global_status.dircache_size)
1201             status_save();
1202     }
1203 #endif
1204 }
1205
1206 void tree_restore(void)
1207 {
1208 #ifdef HAVE_EEPROM_SETTINGS
1209     firmware_settings.disk_clean = false;
1210 #endif
1211
1212 #ifdef HAVE_TC_RAMCACHE
1213     remove(TAGCACHE_STATEFILE);
1214 #endif
1215
1216 #ifdef HAVE_DIRCACHE
1217     remove(DIRCACHE_FILE);
1218     if (global_settings.dircache)
1219     {
1220         /* Print "Scanning disk..." to the display. */
1221         splash(0, str(LANG_SCANNING_DISK));
1222
1223         dircache_build(global_status.dircache_size);
1224     }
1225 #endif
1226 #ifdef HAVE_TAGCACHE
1227     tagcache_start_scan();
1228 #endif
1229 }