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 "backlight.h"
  32 #include "button.h"
  33 #include "kernel.h"
  34 #include "usb.h"
  35 #include "tree.h"
  36 #include "sprintf.h"
  37 #include "audio.h"
  38 #include "playlist.h"
  39 #include "menu.h"
  40 #include "gwps.h"
  41 #include "settings.h"
  42 #include "debug.h"
  43 #include "storage.h"
  44 #include "rolo.h"
  45 #include "icons.h"
  46 #include "lang.h"
  47 #include "screens.h"
  48 #include "keyboard.h"
  49 #include "bookmark.h"
  50 #include "onplay.h"
  51 #include "buffer.h"
  52 #include "power.h"
  53 #include "action.h"
  54 #include "talk.h"
  55 #include "filetypes.h"
  56 #include "misc.h"
  57 #include "filetree.h"
  58 #include "tagtree.h"
  59 #ifdef HAVE_RECORDING
  60 #include "recorder/recording.h"
  61 #endif
  62 #include "rtc.h"
  63 #include "dircache.h"
  64 #ifdef HAVE_TAGCACHE
  65 #include "tagcache.h"
  66 #endif
  67 #include "yesno.h"
  68 #include "gwps-common.h"
  69 #include "eeprom_settings.h"
  70 #include "playlist_catalog.h"
  71
  72 /* gui api */
  73 #include "list.h"
  74 #include "statusbar.h"
  75 #include "splash.h"
  76 #include "buttonbar.h"
  77 #include "action.h"
  78 #include "quickscreen.h"
  79
  80 #include "root_menu.h"
  81
  82 static const struct filetype *filetypes;
  83 static int filetypes_count;
  84
  85 struct gui_synclist tree_lists;
  86
  87 /* I put it here because other files doesn't use it yet,
  88  * but should be elsewhere since it will be used mostly everywhere */
  89 #ifdef HAVE_BUTTONBAR
  90 struct gui_buttonbar tree_buttonbar;
  91 #endif
  92 static struct tree_context tc;
  93
  94 bool boot_changed = false;
  95
  96 char lastfile[MAX_PATH];
  97 static char lastdir[MAX_PATH];
  98 #ifdef HAVE_TAGCACHE
  99 static int lasttable, lastextra, lastfirstpos;
 100 #endif
 101 static int max_files = 0;
 102
 103 static bool reload_dir = false;
 104
 105 static bool start_wps = false;
 106 static int curr_context = false;/* id3db or tree*/
 107
 108 static int dirbrowse(void);
 109 static int ft_play_dirname(char* name);
 110 static void ft_play_filename(char *dir, char *file);
 111 static void say_filetype(int attr);
 112
 113 static char * tree_get_filename(int selected_item, void *data,
 114                                 char *buffer, size_t buffer_len)
 115 {
 116     struct tree_context * local_tc=(struct tree_context *)data;
 117     char *name;
 118     int attr=0;
 119     bool stripit = false;
 120 #ifdef HAVE_TAGCACHE
 121     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 122
 123     if (id3db)
 124     {
 125         return tagtree_get_entry(&tc, selected_item)->name;
 126     }
 127     else
 128 #endif
 129     {
 130         struct entry* dc = local_tc->dircache;
 131         struct entry* e = &dc[selected_item];
 132         name = e->name;
 133         attr = e->attr;
 134     }
 135
 136     if(!(attr & ATTR_DIRECTORY))
 137     {
 138         switch(global_settings.show_filename_ext)
 139         {
 140             case 0:
 141                 /* show file extension: off */
 142                 stripit = true;
 143                 break;
 144             case 1:
 145                 /* show file extension: on */
 146                 break;
 147             case 2:
 148                 /* show file extension: only unknown types */
 149                 stripit = filetype_supported(attr);
 150                 break;
 151             case 3:
 152             default:
 153                 /* show file extension: only when viewing all */
 154                 stripit = (*(local_tc->dirfilter) != SHOW_ID3DB) &&
 155                           (*(local_tc->dirfilter) != SHOW_ALL);
 156                 break;
 157         }
 158     }
 159
 160     if(stripit)
 161     {
 162         return(strip_extension(buffer, buffer_len, name));
 163     }
 164     return(name);
 165 }
 166
 167 #ifdef HAVE_LCD_COLOR
 168 static int tree_get_filecolor(int selected_item, void * data)
 169 {
 170     if (*tc.dirfilter == SHOW_ID3DB)
 171         return -1;
 172     struct tree_context * local_tc=(struct tree_context *)data;
 173     struct entry* dc = local_tc->dircache;
 174     struct entry* e = &dc[selected_item];
 175     return filetype_get_color(e->name, e->attr);
 176 }
 177 #endif
 178
 179 static int tree_get_fileicon(int selected_item, void * data)
 180 {
 181     struct tree_context * local_tc=(struct tree_context *)data;
 182 #ifdef HAVE_TAGCACHE
 183     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 184     if (id3db) {
 185         return tagtree_get_icon(&tc);
 186     }
 187     else
 188 #endif
 189         {
 190         struct entry* dc = local_tc->dircache;
 191         struct entry* e = &dc[selected_item];
 192         return filetype_get_icon(e->attr);
 193     }
 194 }
 195
 196 static int tree_voice_cb(int selected_item, void * data)
 197 {
 198     struct tree_context * local_tc=(struct tree_context *)data;
 199     char *name;
 200     int attr=0;
 201 #ifdef HAVE_TAGCACHE
 202     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 203
 204     if (id3db)
 205     {
 206         attr = tagtree_get_attr(local_tc);
 207         name = tagtree_get_entry(local_tc, selected_item)->name;
 208     }
 209     else
 210 #endif
 211     {
 212         struct entry* dc = local_tc->dircache;
 213         struct entry* e = &dc[selected_item];
 214         name = e->name;
 215         attr = e->attr;
 216     }
 217     bool is_dir = (attr & ATTR_DIRECTORY);
 218     bool did_clip = false;
 219     /* First the .talk clip case */
 220     if(is_dir)
 221     {
 222         if(global_settings.talk_dir_clip)
 223         {
 224             did_clip = true;
 225             if(ft_play_dirname(name) <0)
 226                 /* failed, not existing */
 227                 did_clip = false;
 228         }
 229     } else { /* it's a file */
 230         if (global_settings.talk_file_clip && (attr & FILE_ATTR_THUMBNAIL))
 231         {
 232             did_clip = true;
 233             ft_play_filename(local_tc->currdir, name);
 234         }
 235     }
 236     if(!did_clip)
 237     {
 238         /* say the number or spell if required or as a fallback */
 239         switch (is_dir ? global_settings.talk_dir : global_settings.talk_file)
 240         {
 241         case 1: /* as numbers */
 242             talk_id(is_dir ? VOICE_DIR : VOICE_FILE, false);
 243             talk_number(selected_item+1        - (is_dir ? 0 : local_tc->dirsindir),
 244                         true);
 245             if(global_settings.talk_filetype
 246                && !is_dir && *local_tc->dirfilter < NUM_FILTER_MODES)
 247                 say_filetype(attr);
 248             break;
 249         case 2: /* spelled */
 250             talk_shutup();
 251             if(global_settings.talk_filetype)
 252             {
 253                 if(is_dir)
 254                     talk_id(VOICE_DIR, true);
 255                 else if(*local_tc->dirfilter < NUM_FILTER_MODES)
 256                     say_filetype(attr);
 257             }
 258             talk_spell(name, true);
 259             break;
 260         }
 261     }
 262     return 0;
 263 }
 264
 265 bool check_rockboxdir(void)
 266 {
 267     if(!dir_exists(ROCKBOX_DIR))
 268     {   /* No need to localise this message.
 269            If .rockbox is missing, it wouldn't work anyway */
 270         int i;
 271         FOR_NB_SCREENS(i)
 272             screens[i].clear_display();
 273         splash(HZ*2, "No .rockbox directory");
 274         FOR_NB_SCREENS(i)
 275             screens[i].clear_display();
 276         splash(HZ*2, "Installation incomplete");
 277         return false;
 278     }
 279     return true;
 280 }
 281
 282 /* do this really late in the init sequence */
 283 void tree_gui_init(void)
 284 {
 285     check_rockboxdir();
 286
 287     strcpy(tc.currdir, "/");
 288
 289 #ifdef HAVE_LCD_CHARCELLS
 290     int i;
 291     FOR_NB_SCREENS(i)
 292         screens[i].double_height(false);
 293 #endif
 294 #ifdef HAVE_BUTTONBAR
 295     gui_buttonbar_init(&tree_buttonbar);
 296     /* since archos only have one screen, no need to create more than that */
 297     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 298 #endif
 299     gui_synclist_init(&tree_lists, &tree_get_filename, &tc, false, 1, NULL);
 300     gui_synclist_set_voice_callback(&tree_lists, tree_voice_cb);
 301     gui_synclist_set_icon_callback(&tree_lists, &tree_get_fileicon);
 302 #ifdef HAVE_LCD_COLOR
 303     gui_synclist_set_color_callback(&tree_lists, &tree_get_filecolor);
 304 #endif
 305 }
 306
 307
 308
 309 struct tree_context* tree_get_context(void)
 310 {
 311     return &tc;
 312 }
 313
 314 /*
 315  * Returns the position of a given file in the current directory
 316  * returns -1 if not found
 317  */
 318 static int tree_get_file_position(char * filename)
 319 {
 320     int i;
 321
 322     /* use lastfile to determine the selected item (default=0) */
 323     for (i=0; i < tc.filesindir; i++)
 324     {
 325         struct entry* dc = tc.dircache;
 326         struct entry* e = &dc[i];
 327         if (!strcasecmp(e->name, filename))
 328             return(i);
 329     }
 330     return(-1);/* no file can match, returns undefined */
 331 }
 332
 333 /*
 334  * Called when a new dir is loaded (for example when returning from other apps ...)
 335  * also completely redraws the tree
 336  */
 337 static int update_dir(void)
 338 {
 339     bool changed = false;
 340 #ifdef HAVE_TAGCACHE
 341     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 342     /* Checks for changes */
 343     if (id3db) {
 344         if (tc.currtable != lasttable ||
 345             tc.currextra != lastextra ||
 346             tc.firstpos  != lastfirstpos ||
 347             reload_dir)
 348         {
 349             if (tagtree_load(&tc) < 0)
 350                 return -1;
 351
 352             lasttable = tc.currtable;
 353             lastextra = tc.currextra;
 354             lastfirstpos = tc.firstpos;
 355             changed = true;
 356         }
 357     }
 358     else
 359 #endif
 360     {
 361         /* if the tc.currdir has been changed, reload it ...*/
 362         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir)
 363         {
 364             if (ft_load(&tc, NULL) < 0)
 365                 return -1;
 366             strcpy(lastdir, tc.currdir);
 367             changed = true;
 368         }
 369     }
 370     /* if selected item is undefined */
 371     if (tc.selected_item == -1)
 372     {
 373         /* use lastfile to determine the selected item */
 374         tc.selected_item = tree_get_file_position(lastfile);
 375
 376         /* If the file doesn't exists, select the first one (default) */
 377         if(tc.selected_item < 0)
 378             tc.selected_item = 0;
 379         changed = true;
 380     }
 381     if (changed)
 382     {
 383         if(
 384 #ifdef HAVE_TAGCACHE
 385         !id3db &&
 386 #endif
 387         (tc.dirfull || tc.filesindir == global_settings.max_files_in_dir) )
 388         {
 389             splash(HZ, ID2P(LANG_SHOWDIR_BUFFER_FULL));
 390         }
 391     }
 392 #ifdef HAVE_TAGCACHE
 393     if (id3db)
 394     {
 395 #ifdef HAVE_LCD_BITMAP
 396         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 397             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 398         {
 399             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 400                 filetype_get_icon(ATTR_DIRECTORY));
 401         }
 402         else
 403         {
 404             /* Must clear the title as the list is reused */
 405             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 406         }
 407 #endif
 408     }
 409     else
 410 #endif
 411     {
 412 #ifdef HAVE_LCD_BITMAP
 413         if (global_settings.show_path_in_browser &&
 414             *(tc.dirfilter) == SHOW_PLUGINS)
 415         {
 416             char *title;
 417             if (!strcmp(tc.currdir, PLUGIN_GAMES_DIR))
 418                 title = str(LANG_PLUGIN_GAMES);
 419             else if (!strcmp(tc.currdir, PLUGIN_APPS_DIR))
 420                 title = str(LANG_PLUGIN_APPS);
 421             else if (!strcmp(tc.currdir, PLUGIN_DEMOS_DIR))
 422                 title = str(LANG_PLUGIN_DEMOS);
 423             else title = str(LANG_PLUGINS);
 424             gui_synclist_set_title(&tree_lists, title, Icon_Plugin);
 425         }
 426         else if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 427         {
 428             gui_synclist_set_title(&tree_lists, tc.currdir,
 429                 filetype_get_icon(ATTR_DIRECTORY));
 430         }
 431         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 432         {
 433             char *title = strrchr(tc.currdir, '/') + 1;
 434             if (*title == '\0')
 435             {
 436                 /* Display "Files" for the root dir */
 437                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 438                     filetype_get_icon(ATTR_DIRECTORY));
 439             }
 440             else
 441                 gui_synclist_set_title(&tree_lists, title,
 442                     filetype_get_icon(ATTR_DIRECTORY));
 443         }
 444         else
 445         {
 446             /* Must clear the title as the list is reused */
 447             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 448         }
 449 #endif
 450     }
 451
 452     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 453     gui_synclist_set_icon_callback(&tree_lists, tree_get_fileicon);
 454     if( tc.selected_item >= tc.filesindir)
 455         tc.selected_item=tc.filesindir-1;
 456
 457     gui_synclist_select_item(&tree_lists, tc.selected_item);
 458 #ifdef HAVE_BUTTONBAR
 459     if (global_settings.buttonbar) {
 460         if (*tc.dirfilter < NUM_FILTER_MODES)
 461             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 462                           str(LANG_SYSFONT_DIRBROWSE_F2),
 463                           str(LANG_SYSFONT_DIRBROWSE_F3));
 464         else
 465             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 466         gui_buttonbar_draw(&tree_buttonbar);
 467     }
 468 #endif
 469     gui_synclist_draw(&tree_lists);
 470     gui_synclist_speak_item(&tree_lists);
 471     return tc.filesindir;
 472 }
 473
 474 /* load tracks from specified directory to resume play */
 475 void resume_directory(const char *dir)
 476 {
 477         int dirfilter = *tc.dirfilter;
 478         int ret;
 479 #ifdef HAVE_TAGCACHE
 480     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 481 #endif
 482         /* make sure the dirfilter is sane. The only time it should be possible
 483          * thats its not is when resume playlist is called from a plugin
 484          */
 485 #ifdef HAVE_TAGCACHE
 486         if (!id3db)
 487 #endif
 488                 *tc.dirfilter = global_settings.dirfilter;
 489         ret = ft_load(&tc, dir);
 490         *tc.dirfilter = dirfilter;
 491         if (ret < 0)
 492         return;
 493     lastdir[0] = 0;
 494
 495     ft_build_playlist(&tc, 0);
 496
 497 #ifdef HAVE_TAGCACHE
 498     if (id3db)
 499         tagtree_load(&tc);
 500 #endif
 501 }
 502
 503 /* Returns the current working directory and also writes cwd to buf if
 504    non-NULL.  In case of error, returns NULL. */
 505 char *getcwd(char *buf, int size)
 506 {
 507     if (!buf)
 508         return tc.currdir;
 509     else if (size > 0)
 510     {
 511         strncpy(buf, tc.currdir, size);
 512         return buf;
 513     }
 514     else
 515         return NULL;
 516 }
 517
 518 /* Force a reload of the directory next time directory browser is called */
 519 void reload_directory(void)
 520 {
 521     reload_dir = true;
 522 }
 523
 524 void get_current_file(char* buffer, int buffer_len)
 525 {
 526 #ifdef HAVE_TAGCACHE
 527     /* in ID3DB mode it is a bad idea to call this function */
 528     /* (only happens with `follow playlist') */
 529     if( *tc.dirfilter == SHOW_ID3DB )
 530         return;
 531 #endif
 532
 533     struct entry* dc = tc.dircache;
 534     struct entry* e = &dc[tc.selected_item];
 535     snprintf(buffer, buffer_len, "%s/%s", getcwd(NULL,0),
 536                                           tc.dirlength ? e->name : "");
 537 }
 538
 539 /* Allow apps to change our dirfilter directly (required for sub browsers)
 540    if they're suddenly going to become a file browser for example */
 541 void set_dirfilter(int l_dirfilter)
 542 {
 543     *tc.dirfilter = l_dirfilter;
 544 }
 545
 546 /* Selects a file and update tree context properly */
 547 void set_current_file(char *path)
 548 {
 549     char *name;
 550     int i;
 551
 552 #ifdef HAVE_TAGCACHE
 553     /* in ID3DB mode it is a bad idea to call this function */
 554     /* (only happens with `follow playlist') */
 555     if( *tc.dirfilter == SHOW_ID3DB )
 556         return;
 557 #endif
 558
 559     /* separate directory from filename */
 560     /* gets the directory's name and put it into tc.currdir */
 561     name = strrchr(path+1,'/');
 562     if (name)
 563     {
 564         *name = 0;
 565         strcpy(tc.currdir, path);
 566         *name = '/';
 567         name++;
 568     }
 569     else
 570     {
 571         strcpy(tc.currdir, "/");
 572         name = path+1;
 573     }
 574
 575     strcpy(lastfile, name);
 576
 577
 578     /* If we changed dir we must recalculate the dirlevel
 579        and adjust the selected history properly */
 580     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 581     {
 582         tc.dirlevel =  0;
 583         tc.selected_item_history[tc.dirlevel] = -1;
 584
 585         /* use '/' to calculate dirlevel */
 586         for (i = 1; path[i] != '\0'; i++)
 587         {
 588             if (path[i] == '/')
 589             {
 590                 tc.dirlevel++;
 591                 tc.selected_item_history[tc.dirlevel] = -1;
 592             }
 593         }
 594     }
 595     if (ft_load(&tc, NULL) >= 0)
 596     {
 597         tc.selected_item = tree_get_file_position(lastfile);
 598     }
 599 }
 600
 601
 602 /* main loop, handles key events */
 603 static int dirbrowse()
 604 {
 605     int numentries=0;
 606     char buf[MAX_PATH];
 607     int button, oldbutton;
 608     bool reload_root = false;
 609     int lastfilter = *tc.dirfilter;
 610     bool lastsortcase = global_settings.sort_case;
 611     bool exit_func = false;
 612
 613     char* currdir = tc.currdir; /* just a shortcut */
 614 #ifdef HAVE_TAGCACHE
 615     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 616
 617     if (id3db)
 618         curr_context=CONTEXT_ID3DB;
 619     else
 620 #endif
 621         curr_context=CONTEXT_TREE;
 622     if (tc.selected_item < 0)
 623         tc.selected_item = 0;
 624 #ifdef HAVE_TAGCACHE
 625     tc.firstpos = 0;
 626     lasttable = -1;
 627     lastextra = -1;
 628     lastfirstpos = 0;
 629 #endif
 630
 631     start_wps = false;
 632     numentries = update_dir();
 633     reload_dir = false;
 634     if (numentries == -1)
 635         return GO_TO_PREVIOUS;  /* currdir is not a directory */
 636
 637     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 638     {
 639         splash(HZ*2, ID2P(LANG_NO_FILES));
 640         return GO_TO_PREVIOUS;  /* No files found for rockbox_browser() */
 641     }
 642
 643     gui_synclist_draw(&tree_lists);
 644     while(1) {
 645         struct entry *dircache = tc.dircache;
 646         bool restore = false;
 647         if (tc.dirlevel < 0)
 648             tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 649 #ifdef BOOTFILE
 650         if (boot_changed) {
 651             static const char *lines[]={ID2P(LANG_BOOT_CHANGED), ID2P(LANG_REBOOT_NOW)};
 652             static const struct text_message message={lines, 2};
 653             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 654                 rolo_load("/" BOOTFILE);
 655             restore = true;
 656             boot_changed = false;
 657         }
 658 #endif
 659         button = get_action(CONTEXT_TREE,
 660                             list_do_action_timeout(&tree_lists, HZ/2));
 661         oldbutton = button;
 662         gui_synclist_do_button(&tree_lists, &button,LIST_WRAP_UNLESS_HELD);
 663         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 664         switch ( button ) {
 665             case ACTION_STD_OK:
 666                 /* nothing to do if no files to display */
 667                 if ( numentries == 0 )
 668                     break;
 669
 670 #ifdef HAVE_TAGCACHE
 671                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 672 #else
 673                 switch (ft_enter(&tc))
 674 #endif
 675                 {
 676                     case 1: reload_dir = true; break;
 677                     case 2: start_wps = true; break;
 678                     case 3: exit_func = true; break;
 679                     default: break;
 680                 }
 681                 restore = true;
 682                 break;
 683
 684             case ACTION_STD_CANCEL:
 685                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 686                     exit_func = true;
 687                     break;
 688                 }
 689                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 690                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 691                 {
 692 #ifdef HAVE_LCD_BITMAP /* charcell doesnt have ACTION_TREE_PGLEFT so this isnt needed */
 693                     if (oldbutton == ACTION_TREE_PGLEFT)
 694                         break;
 695                     else
 696 #endif
 697                         return GO_TO_ROOT;
 698                 }
 699
 700 #ifdef HAVE_TAGCACHE
 701                 if (id3db)
 702                     tagtree_exit(&tc);
 703                 else
 704 #endif
 705                     if (ft_exit(&tc) == 3)
 706                         exit_func = true;
 707
 708                 restore = true;
 709                 break;
 710
 711             case ACTION_TREE_STOP:
 712                 if (list_stop_handler())
 713                     restore = true;
 714                 break;
 715
 716             case ACTION_STD_MENU:
 717                 return GO_TO_ROOT;
 718                 break;
 719
 720 #ifdef HAVE_RECORDING
 721             case ACTION_STD_REC:
 722                 return GO_TO_RECSCREEN;
 723 #endif
 724
 725             case ACTION_TREE_WPS:
 726                 return GO_TO_PREVIOUS_MUSIC;
 727                 break;
 728 #ifdef HAVE_QUICKSCREEN
 729             case ACTION_STD_QUICKSCREEN:
 730                 /* don't enter f2 from plugin browser */
 731                 if (*tc.dirfilter < NUM_FILTER_MODES)
 732                 {
 733                     if (quick_screen_quick(button))
 734                         reload_dir = true;
 735                     restore = true;
 736                 }
 737                 break;
 738 #endif
 739 #ifdef BUTTON_F3
 740             case ACTION_F3:
 741                 /* don't enter f3 from plugin browser */
 742                 if (*tc.dirfilter < NUM_FILTER_MODES)
 743                 {
 744                     if (quick_screen_f3(ACTION_F3))
 745                         reload_dir = true;
 746                     restore = true;
 747                 }
 748                 break;
 749 #endif
 750
 751             case ACTION_STD_CONTEXT:
 752             {
 753                 int onplay_result;
 754                 int attr = 0;
 755
 756                 if(!numentries)
 757                     onplay_result = onplay(NULL, 0, curr_context);
 758                 else {
 759 #ifdef HAVE_TAGCACHE
 760                     if (id3db)
 761                     {
 762                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 763                         {
 764                             attr = FILE_ATTR_AUDIO;
 765                             tagtree_get_filename(&tc, buf, sizeof(buf));
 766                         }
 767                         else
 768                             attr = ATTR_DIRECTORY;
 769                     }
 770                     else
 771 #endif
 772                     {
 773                         attr = dircache[tc.selected_item].attr;
 774
 775                         if (currdir[1]) /* Not in / */
 776                             snprintf(buf, sizeof buf, "%s/%s",
 777                                      currdir,
 778                                      dircache[tc.selected_item].name);
 779                         else /* In / */
 780                             snprintf(buf, sizeof buf, "/%s",
 781                                      dircache[tc.selected_item].name);
 782                     }
 783                     onplay_result = onplay(buf, attr, curr_context);
 784                 }
 785                 switch (onplay_result)
 786                 {
 787                     case ONPLAY_MAINMENU:
 788                         return GO_TO_ROOT;
 789
 790                     case ONPLAY_OK:
 791                         restore = true;
 792                         break;
 793
 794                     case ONPLAY_RELOAD_DIR:
 795                         reload_dir = true;
 796                         break;
 797
 798                     case ONPLAY_START_PLAY:
 799                         return GO_TO_WPS;
 800                         break;
 801                 }
 802                 break;
 803             }
 804
 805 #ifdef HAVE_HOTSWAP
 806             case SYS_FS_CHANGED:
 807 #ifdef HAVE_TAGCACHE
 808                 if (!id3db)
 809 #endif
 810                     reload_dir = true;
 811                 /* The 'dir no longer valid' situation will be caught later
 812                  * by checking the showdir() result. */
 813                 break;
 814 #endif
 815
 816             default:
 817                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 818                 {
 819                     if(*tc.dirfilter > NUM_FILTER_MODES)
 820                         /* leave sub-browsers after usb, doing otherwise
 821                            might be confusing to the user */
 822                         exit_func = true;
 823                     else
 824                         reload_dir = true;
 825                 }
 826                 break;
 827         }
 828         if (start_wps)
 829             return GO_TO_WPS;
 830         if (button && !IS_SYSEVENT(button))
 831         {
 832             storage_spin();
 833         }
 834
 835
 836     check_rescan:
 837         /* do we need to rescan dir? */
 838         if (reload_dir || reload_root ||
 839             lastfilter != *tc.dirfilter ||
 840             lastsortcase != global_settings.sort_case)
 841         {
 842             if (reload_root) {
 843                 strcpy(currdir, "/");
 844                 tc.dirlevel = 0;
 845 #ifdef HAVE_TAGCACHE
 846                 tc.currtable = 0;
 847                 tc.currextra = 0;
 848                 lasttable = -1;
 849                 lastextra = -1;
 850 #endif
 851                 reload_root = false;
 852             }
 853
 854             if (!reload_dir)
 855             {
 856                 gui_synclist_select_item(&tree_lists, 0);
 857                 gui_synclist_draw(&tree_lists);
 858                 tc.selected_item = 0;
 859                 lastdir[0] = 0;
 860             }
 861
 862             lastfilter = *tc.dirfilter;
 863             lastsortcase = global_settings.sort_case;
 864             restore = true;
 865         }
 866
 867         if (exit_func)
 868             return GO_TO_PREVIOUS;
 869
 870         if (restore || reload_dir) {
 871             /* restore display */
 872             numentries = update_dir();
 873             reload_dir = false;
 874             if (currdir[1] && (numentries < 0))
 875             {   /* not in root and reload failed */
 876                 reload_root = true; /* try root */
 877                 goto check_rescan;
 878             }
 879         }
 880     }
 881     return true;
 882 }
 883
 884 bool create_playlist(void)
 885 {
 886     char filename[MAX_PATH];
 887
 888     snprintf(filename, sizeof filename, "%s.m3u8",
 889              tc.currdir[1] ? tc.currdir : "/root");
 890     splashf(0, "%s %s", str(LANG_CREATING), filename);
 891
 892     trigger_cpu_boost();
 893     catalog_add_to_a_playlist(tc.currdir, ATTR_DIRECTORY, true, filename);
 894     cancel_cpu_boost();
 895
 896     return true;
 897 }
 898
 899 int rockbox_browse(const char *root, int dirfilter)
 900 {
 901     int ret_val = 0;
 902     int *last_filter = tc.dirfilter;
 903     tc.dirfilter = &dirfilter;
 904     tc.sort_dir = global_settings.sort_dir;
 905
 906     reload_dir = true;
 907     if (dirfilter >= NUM_FILTER_MODES)
 908     {
 909         static struct tree_context backup;
 910         int last_context;
 911
 912         backup = tc;
 913         tc.selected_item = 0;
 914         tc.dirlevel = 0;
 915         memcpy(tc.currdir, root, sizeof(tc.currdir));
 916         start_wps = false;
 917         last_context = curr_context;
 918
 919         ret_val = dirbrowse();
 920         tc = backup;
 921         curr_context = last_context;
 922     }
 923     else
 924     {
 925         static char buf[MAX_PATH];
 926         if (dirfilter != SHOW_ID3DB)
 927             tc.dirfilter = &global_settings.dirfilter;
 928         strcpy(buf,root);
 929         set_current_file(buf);
 930         ret_val = dirbrowse();
 931     }
 932     tc.dirfilter = last_filter;
 933     return ret_val;
 934 }
 935
 936 void tree_mem_init(void)
 937 {
 938     /* We copy the settings value in case it is changed by the user. We can't
 939        use it until the next reboot. */
 940     max_files = global_settings.max_files_in_dir;
 941
 942     /* initialize tree context struct */
 943     memset(&tc, 0, sizeof(tc));
 944     tc.dirfilter = &global_settings.dirfilter;
 945     tc.sort_dir = global_settings.sort_dir;
 946
 947     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
 948     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
 949
 950     tc.dircache_size = max_files * sizeof(struct entry);
 951     tc.dircache = buffer_alloc(tc.dircache_size);
 952     tree_get_filetypes(&filetypes, &filetypes_count);
 953 }
 954
 955 bool bookmark_play(char *resume_file, int index, int offset, int seed,
 956                    char *filename)
 957 {
 958     int i;
 959     char* suffix = strrchr(resume_file, '.');
 960     bool started = false;
 961
 962     if (suffix != NULL &&
 963         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
 964     {
 965         /* Playlist playback */
 966         char* slash;
 967         /* check that the file exists */
 968         if(!file_exists(resume_file))
 969             return false;
 970
 971         slash = strrchr(resume_file,'/');
 972         if (slash)
 973         {
 974             char* cp;
 975             *slash=0;
 976
 977             cp=resume_file;
 978             if (!cp[0])
 979                 cp="/";
 980
 981             if (playlist_create(cp, slash+1) != -1)
 982             {
 983                 if (global_settings.playlist_shuffle)
 984                     playlist_shuffle(seed, -1);
 985                 playlist_start(index,offset);
 986                 started = true;
 987             }
 988             *slash='/';
 989         }
 990     }
 991     else
 992     {
 993         /* Directory playback */
 994         lastdir[0]='\0';
 995         if (playlist_create(resume_file, NULL) != -1)
 996         {
 997             char* peek_filename;
 998             resume_directory(resume_file);
 999             if (global_settings.playlist_shuffle)
1000                 playlist_shuffle(seed, -1);
1001
1002             /* Check if the file is at the same spot in the directory,
1003                else search for it */
1004             peek_filename = playlist_peek(index);
1005
1006             if (peek_filename == NULL)
1007                 return false;
1008
1009             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1010             {
1011                 for ( i=0; i < playlist_amount(); i++ )
1012                 {
1013                     peek_filename = playlist_peek(i);
1014
1015                     if (peek_filename == NULL)
1016                         return false;
1017
1018                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1019                         break;
1020                 }
1021                 if (i < playlist_amount())
1022                     index = i;
1023                 else
1024                     return false;
1025             }
1026             playlist_start(index,offset);
1027             started = true;
1028         }
1029     }
1030
1031     if (started)
1032         start_wps = true;
1033     return started;
1034 }
1035
1036 static void say_filetype(int attr)
1037 {
1038     /* try to find a voice ID for the extension, if known */
1039     int j;
1040     attr &= FILE_ATTR_MASK; /* file type */
1041     for (j=0; j<filetypes_count; j++)
1042         if (attr == filetypes[j].tree_attr)
1043         {
1044             talk_id(filetypes[j].voiceclip, true);
1045             return;
1046         }
1047 }
1048
1049 static int ft_play_dirname(char* name)
1050 {
1051 #if CONFIG_CODEC != SWCODEC
1052     if (audio_status() & AUDIO_STATUS_PLAY)
1053         return 0;
1054 #endif
1055
1056     if(talk_file(tc.currdir, name, dir_thumbnail_name, NULL,
1057                  NULL, false))
1058     {
1059         if(global_settings.talk_filetype)
1060             talk_id(VOICE_DIR, true);
1061         return 1;
1062     }
1063     else
1064         return -1;
1065 }
1066
1067 static void ft_play_filename(char *dir, char *file)
1068 {
1069 #if CONFIG_CODEC != SWCODEC
1070     if (audio_status() & AUDIO_STATUS_PLAY)
1071         return;
1072 #endif
1073
1074     if (strlen(file) >= strlen(file_thumbnail_ext)
1075         && strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1076                       file_thumbnail_ext))
1077         /* file has no .talk extension */
1078         talk_file(dir, NULL, file, file_thumbnail_ext,
1079                   NULL, false);
1080     else
1081         /* it already is a .talk file, play this directly, but prefix it. */
1082         talk_file(dir, NULL, file, NULL,
1083                   TALK_IDARRAY(LANG_VOICE_DIR_HOVER), false);
1084 }
1085
1086 /* These two functions are called by the USB and shutdown handlers */
1087 void tree_flush(void)
1088 {
1089 #ifdef HAVE_TAGCACHE
1090     tagcache_shutdown();
1091 #endif
1092
1093 #ifdef HAVE_TC_RAMCACHE
1094     tagcache_unload_ramcache();
1095 #endif
1096
1097 #ifdef HAVE_DIRCACHE
1098     {
1099         int old_val = global_status.dircache_size;
1100         if (global_settings.dircache)
1101         {
1102             if (!dircache_is_initializing())
1103                 global_status.dircache_size = dircache_get_cache_size();
1104 # ifdef HAVE_EEPROM_SETTINGS
1105             if (firmware_settings.initialized)
1106                 dircache_save();
1107 # endif
1108             dircache_disable();
1109         }
1110         else
1111         {
1112             global_status.dircache_size = 0;
1113         }
1114         if (old_val != global_status.dircache_size)
1115             status_save();
1116     }
1117 #endif
1118 }
1119
1120 void tree_restore(void)
1121 {
1122 #ifdef HAVE_EEPROM_SETTINGS
1123     firmware_settings.disk_clean = false;
1124 #endif
1125
1126 #ifdef HAVE_TC_RAMCACHE
1127     remove(TAGCACHE_STATEFILE);
1128 #endif
1129
1130 #ifdef HAVE_DIRCACHE
1131     remove(DIRCACHE_FILE);
1132     if (global_settings.dircache)
1133     {
1134         /* Print "Scanning disk..." to the display. */
1135         splash(0, str(LANG_SCANNING_DISK));
1136
1137         dircache_build(global_status.dircache_size);
1138     }
1139 #endif
1140 #ifdef HAVE_TAGCACHE
1141     tagcache_start_scan();
1142 #endif
1143 }