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 "filefuncs.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 "eeprom_settings.h"
  68 #include "playlist_catalog.h"
  69
  70 /* gui api */
  71 #include "list.h"
  72 #include "splash.h"
  73 #include "buttonbar.h"
  74 #include "quickscreen.h"
  75 #include "appevents.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 static 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 const 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 enum themable_icons 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,
 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 (tc.browse && tc.browse->title)
 421         {
 422             int icon = tc.browse->icon;
 423             if (icon == NOICON)
 424                 icon = filetype_get_icon(ATTR_DIRECTORY);
 425             gui_synclist_set_title(&tree_lists, tc.browse->title, icon);
 426         }
 427         else if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 428         {
 429             gui_synclist_set_title(&tree_lists, tc.currdir,
 430                 filetype_get_icon(ATTR_DIRECTORY));
 431         }
 432         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 433         {
 434             char *title = strrchr(tc.currdir, '/') + 1;
 435             if (*title == '\0')
 436             {
 437                 /* Display "Files" for the root dir */
 438                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 439                     filetype_get_icon(ATTR_DIRECTORY));
 440             }
 441             else
 442                 gui_synclist_set_title(&tree_lists, title,
 443                     filetype_get_icon(ATTR_DIRECTORY));
 444         }
 445         else
 446         {
 447             /* Must clear the title as the list is reused */
 448             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 449         }
 450 #endif
 451     }
 452
 453     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 454     gui_synclist_set_icon_callback(&tree_lists,
 455                                    global_settings.show_icons?tree_get_fileicon:NULL);
 456     if( tc.selected_item >= tc.filesindir)
 457         tc.selected_item=tc.filesindir-1;
 458
 459     gui_synclist_select_item(&tree_lists, tc.selected_item);
 460 #ifdef HAVE_BUTTONBAR
 461     if (global_settings.buttonbar) {
 462         if (*tc.dirfilter < NUM_FILTER_MODES)
 463             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 464                           str(LANG_SYSFONT_DIRBROWSE_F2),
 465                           str(LANG_SYSFONT_DIRBROWSE_F3));
 466         else
 467             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 468         gui_buttonbar_draw(&tree_buttonbar);
 469     }
 470 #endif
 471     gui_synclist_draw(&tree_lists);
 472     gui_synclist_speak_item(&tree_lists);
 473     return tc.filesindir;
 474 }
 475
 476 /* load tracks from specified directory to resume play */
 477 void resume_directory(const char *dir)
 478 {
 479     int dirfilter = *tc.dirfilter;
 480     int ret;
 481 #ifdef HAVE_TAGCACHE
 482     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 483 #endif
 484     /* make sure the dirfilter is sane. The only time it should be possible
 485      * thats its not is when resume playlist is called from a plugin
 486      */
 487 #ifdef HAVE_TAGCACHE
 488     if (!id3db)
 489 #endif
 490         *tc.dirfilter = global_settings.dirfilter;
 491     ret = ft_load(&tc, dir);
 492     *tc.dirfilter = dirfilter;
 493     if (ret < 0)
 494         return;
 495     lastdir[0] = 0;
 496
 497     ft_build_playlist(&tc, 0);
 498
 499 #ifdef HAVE_TAGCACHE
 500     if (id3db)
 501         tagtree_load(&tc);
 502 #endif
 503 }
 504
 505 /* Returns the current working directory and also writes cwd to buf if
 506    non-NULL.  In case of error, returns NULL. */
 507 char *getcwd(char *buf, getcwd_size_t size)
 508 {
 509     if (!buf)
 510         return tc.currdir;
 511     else if (size)
 512     {
 513         if ((getcwd_size_t)strlcpy(buf, tc.currdir, size) < size)
 514             return buf;
 515     }
 516     /* size == 0, or truncation in strlcpy */
 517     return NULL;
 518 }
 519
 520 /* Force a reload of the directory next time directory browser is called */
 521 void reload_directory(void)
 522 {
 523     reload_dir = true;
 524 }
 525
 526 char* get_current_file(char* buffer, size_t buffer_len)
 527 {
 528 #ifdef HAVE_TAGCACHE
 529     /* in ID3DB mode it is a bad idea to call this function */
 530     /* (only happens with `follow playlist') */
 531     if( *tc.dirfilter == SHOW_ID3DB )
 532         return NULL;
 533 #endif
 534
 535     struct entry* dc = tc.dircache;
 536     struct entry* e = &dc[tc.selected_item];
 537     if (getcwd(buffer, buffer_len))
 538     {
 539         if (tc.dirlength)
 540         {
 541             if (buffer[strlen(buffer)-1] != '/')
 542                 strlcat(buffer, "/", buffer_len);
 543             if (strlcat(buffer, e->name, buffer_len) >= buffer_len)
 544                 return NULL;
 545         }
 546         return buffer;
 547     }
 548     return NULL;
 549 }
 550
 551 /* Allow apps to change our dirfilter directly (required for sub browsers)
 552    if they're suddenly going to become a file browser for example */
 553 void set_dirfilter(int l_dirfilter)
 554 {
 555     *tc.dirfilter = l_dirfilter;
 556 }
 557
 558 /* Selects a file and update tree context properly */
 559 void set_current_file(const char *path)
 560 {
 561     const char *name;
 562     int i;
 563
 564 #ifdef HAVE_TAGCACHE
 565     /* in ID3DB mode it is a bad idea to call this function */
 566     /* (only happens with `follow playlist') */
 567     if( *tc.dirfilter == SHOW_ID3DB )
 568         return;
 569 #endif
 570
 571     /* separate directory from filename */
 572     /* gets the directory's name and put it into tc.currdir */
 573     name = strrchr(path+1,'/');
 574     if (name)
 575     {
 576         strlcpy(tc.currdir, path, name - path + 1);
 577         name++;
 578     }
 579     else
 580     {
 581         strcpy(tc.currdir, "/");
 582         name = path+1;
 583     }
 584
 585     strcpy(lastfile, name);
 586
 587
 588     /* If we changed dir we must recalculate the dirlevel
 589        and adjust the selected history properly */
 590     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 591     {
 592         tc.dirlevel =  0;
 593         tc.selected_item_history[tc.dirlevel] = -1;
 594
 595         /* use '/' to calculate dirlevel */
 596         for (i = 1; path[i] != '\0'; i++)
 597         {
 598             if (path[i] == '/')
 599             {
 600                 tc.dirlevel++;
 601                 tc.selected_item_history[tc.dirlevel] = -1;
 602             }
 603         }
 604     }
 605     if (ft_load(&tc, NULL) >= 0)
 606     {
 607         tc.selected_item = tree_get_file_position(lastfile);
 608     }
 609 }
 610
 611
 612 /* main loop, handles key events */
 613 static int dirbrowse(void)
 614 {
 615     int numentries=0;
 616     char buf[MAX_PATH];
 617     int button, oldbutton;
 618     bool reload_root = false;
 619     int lastfilter = *tc.dirfilter;
 620     bool lastsortcase = global_settings.sort_case;
 621     bool exit_func = false;
 622
 623     char* currdir = tc.currdir; /* just a shortcut */
 624 #ifdef HAVE_TAGCACHE
 625     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 626
 627     if (id3db)
 628         curr_context=CONTEXT_ID3DB;
 629     else
 630 #endif
 631         curr_context=CONTEXT_TREE;
 632     if (tc.selected_item < 0)
 633         tc.selected_item = 0;
 634 #ifdef HAVE_TAGCACHE
 635     tc.firstpos = 0;
 636     lasttable = -1;
 637     lastextra = -1;
 638     lastfirstpos = 0;
 639 #endif
 640
 641     start_wps = false;
 642     numentries = update_dir();
 643     reload_dir = false;
 644     if (numentries == -1)
 645         return GO_TO_PREVIOUS;  /* currdir is not a directory */
 646
 647     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 648     {
 649         splash(HZ*2, ID2P(LANG_NO_FILES));
 650         return GO_TO_PREVIOUS;  /* No files found for rockbox_browse() */
 651     }
 652
 653     gui_synclist_draw(&tree_lists);
 654     while(1) {
 655         struct entry *dircache = tc.dircache;
 656         bool restore = false;
 657         if (tc.dirlevel < 0)
 658             tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 659 #ifdef BOOTFILE
 660         if (boot_changed) {
 661             static const char *lines[]={ID2P(LANG_BOOT_CHANGED), ID2P(LANG_REBOOT_NOW)};
 662             static const struct text_message message={lines, 2};
 663             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 664                 rolo_load("/" BOOTFILE);
 665             restore = true;
 666             boot_changed = false;
 667         }
 668 #endif
 669         button = get_action(CONTEXT_TREE,
 670                             list_do_action_timeout(&tree_lists, HZ/2));
 671         oldbutton = button;
 672         gui_synclist_do_button(&tree_lists, &button,LIST_WRAP_UNLESS_HELD);
 673         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 674         switch ( button ) {
 675             case ACTION_STD_OK:
 676                 /* nothing to do if no files to display */
 677                 if ( numentries == 0 )
 678                     break;
 679
 680                 if ((tc.browse->flags & BROWSE_SELECTONLY) &&
 681                     !(dircache[tc.selected_item].attr & ATTR_DIRECTORY))
 682                 {
 683                     tc.browse->flags |= BROWSE_SELECTED;
 684                     get_current_file(tc.browse->buf, tc.browse->bufsize);
 685                     return GO_TO_PREVIOUS;
 686                 }
 687
 688 #ifdef HAVE_TAGCACHE
 689                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 690 #else
 691                 switch (ft_enter(&tc))
 692 #endif
 693                 {
 694                     case GO_TO_FILEBROWSER: reload_dir = true; break;
 695                     case GO_TO_WPS:
 696                         return GO_TO_WPS;
 697 #if CONFIG_TUNER
 698                     case GO_TO_FM:
 699                         return GO_TO_FM;
 700 #endif
 701                     case GO_TO_ROOT: exit_func = true; break;
 702                     default: break;
 703                 }
 704                 restore = true;
 705                 break;
 706
 707             case ACTION_STD_CANCEL:
 708                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 709                     exit_func = true;
 710                     break;
 711                 }
 712                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 713                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 714                 {
 715 #ifdef HAVE_LCD_BITMAP /* charcell doesnt have ACTION_TREE_PGLEFT so this isnt needed */
 716                     if (oldbutton == ACTION_TREE_PGLEFT)
 717                         break;
 718                     else
 719 #endif
 720                         return GO_TO_ROOT;
 721                 }
 722
 723 #ifdef HAVE_TAGCACHE
 724                 if (id3db)
 725                     tagtree_exit(&tc);
 726                 else
 727 #endif
 728                     if (ft_exit(&tc) == 3)
 729                         exit_func = true;
 730
 731                 restore = true;
 732                 break;
 733
 734             case ACTION_TREE_STOP:
 735                 if (list_stop_handler())
 736                     restore = true;
 737                 break;
 738
 739             case ACTION_STD_MENU:
 740                 return GO_TO_ROOT;
 741                 break;
 742
 743 #ifdef HAVE_RECORDING
 744             case ACTION_STD_REC:
 745                 return GO_TO_RECSCREEN;
 746 #endif
 747
 748             case ACTION_TREE_WPS:
 749                 return GO_TO_PREVIOUS_MUSIC;
 750                 break;
 751 #ifdef HAVE_QUICKSCREEN
 752             case ACTION_STD_QUICKSCREEN:
 753                 /* don't enter f2 from plugin browser */
 754                 if (*tc.dirfilter < NUM_FILTER_MODES)
 755                 {
 756                     if (quick_screen_quick(button))
 757                         reload_dir = true;
 758                     restore = true;
 759                 }
 760                 break;
 761 #endif
 762 #ifdef BUTTON_F3
 763             case ACTION_F3:
 764                 /* don't enter f3 from plugin browser */
 765                 if (*tc.dirfilter < NUM_FILTER_MODES)
 766                 {
 767                     if (quick_screen_f3(ACTION_F3))
 768                         reload_dir = true;
 769                     restore = true;
 770                 }
 771                 break;
 772 #endif
 773
 774 #ifdef HAVE_HOTKEY
 775             case ACTION_TREE_HOTKEY:
 776                 if (!global_settings.hotkey_tree)
 777                     break;
 778                 /* fall through */
 779 #endif
 780             case ACTION_STD_CONTEXT:
 781             {
 782                 bool hotkey = button == ACTION_TREE_HOTKEY;
 783                 int onplay_result;
 784                 int attr = 0;
 785
 786                 if (tc.browse->flags & BROWSE_NO_CONTEXT_MENU)
 787                     break;
 788
 789                 if(!numentries)
 790                     onplay_result = onplay(NULL, 0, curr_context, hotkey);
 791                 else {
 792 #ifdef HAVE_TAGCACHE
 793                     if (id3db)
 794                     {
 795                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 796                         {
 797                             attr = FILE_ATTR_AUDIO;
 798                             tagtree_get_filename(&tc, buf, sizeof(buf));
 799                         }
 800                         else
 801                             attr = ATTR_DIRECTORY;
 802                     }
 803                     else
 804 #endif
 805                     {
 806                         attr = dircache[tc.selected_item].attr;
 807
 808                         if (currdir[1]) /* Not in / */
 809                             snprintf(buf, sizeof buf, "%s/%s",
 810                                      currdir,
 811                                      dircache[tc.selected_item].name);
 812                         else /* In / */
 813                             snprintf(buf, sizeof buf, "/%s",
 814                                      dircache[tc.selected_item].name);
 815                     }
 816                     onplay_result = onplay(buf, attr, curr_context, hotkey);
 817                 }
 818                 switch (onplay_result)
 819                 {
 820                     case ONPLAY_MAINMENU:
 821                         return GO_TO_ROOT;
 822
 823                     case ONPLAY_OK:
 824                         restore = true;
 825                         break;
 826
 827                     case ONPLAY_RELOAD_DIR:
 828                         reload_dir = true;
 829                         break;
 830
 831                     case ONPLAY_START_PLAY:
 832                         return GO_TO_WPS;
 833                         break;
 834                 }
 835                 break;
 836             }
 837
 838 #ifdef HAVE_HOTSWAP
 839             case SYS_FS_CHANGED:
 840 #ifdef HAVE_TAGCACHE
 841                 if (!id3db)
 842 #endif
 843                     reload_dir = true;
 844                 /* The 'dir no longer valid' situation will be caught later
 845                  * by checking the showdir() result. */
 846                 break;
 847 #endif
 848
 849             default:
 850                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 851                 {
 852                     if(*tc.dirfilter > NUM_FILTER_MODES)
 853                         /* leave sub-browsers after usb, doing otherwise
 854                            might be confusing to the user */
 855                         exit_func = true;
 856                     else
 857                         reload_dir = true;
 858                 }
 859                 break;
 860         }
 861         if (start_wps)
 862             return GO_TO_WPS;
 863         if (button && !IS_SYSEVENT(button))
 864         {
 865             storage_spin();
 866         }
 867
 868
 869     check_rescan:
 870         /* do we need to rescan dir? */
 871         if (reload_dir || reload_root ||
 872             lastfilter != *tc.dirfilter ||
 873             lastsortcase != global_settings.sort_case)
 874         {
 875             if (reload_root) {
 876                 strcpy(currdir, "/");
 877                 tc.dirlevel = 0;
 878 #ifdef HAVE_TAGCACHE
 879                 tc.currtable = 0;
 880                 tc.currextra = 0;
 881                 lasttable = -1;
 882                 lastextra = -1;
 883 #endif
 884                 reload_root = false;
 885             }
 886
 887             if (!reload_dir)
 888             {
 889                 gui_synclist_select_item(&tree_lists, 0);
 890                 gui_synclist_draw(&tree_lists);
 891                 tc.selected_item = 0;
 892                 lastdir[0] = 0;
 893             }
 894
 895             lastfilter = *tc.dirfilter;
 896             lastsortcase = global_settings.sort_case;
 897             restore = true;
 898         }
 899
 900         if (exit_func)
 901             return GO_TO_PREVIOUS;
 902
 903         if (restore || reload_dir) {
 904             /* restore display */
 905             numentries = update_dir();
 906             reload_dir = false;
 907             if (currdir[1] && (numentries < 0))
 908             {   /* not in root and reload failed */
 909                 reload_root = true; /* try root */
 910                 goto check_rescan;
 911             }
 912         }
 913     }
 914     return true;
 915 }
 916
 917 bool create_playlist(void)
 918 {
 919     char filename[MAX_PATH];
 920
 921     snprintf(filename, sizeof filename, "%s.m3u8",
 922              tc.currdir[1] ? tc.currdir : "/root");
 923     splashf(0, "%s %s", str(LANG_CREATING), filename);
 924
 925     trigger_cpu_boost();
 926     catalog_add_to_a_playlist(tc.currdir, ATTR_DIRECTORY, true, filename);
 927     cancel_cpu_boost();
 928
 929     return true;
 930 }
 931
 932 void browse_context_init(struct browse_context *browse,
 933                          int dirfilter, unsigned flags,
 934                          char *title, enum themable_icons icon,
 935                          const char *root, const char *selected)
 936 {
 937     browse->dirfilter = dirfilter;
 938     browse->flags = flags;
 939     browse->callback_show_item = NULL;
 940     browse->title = title;
 941     browse->icon = icon;
 942     browse->root = root;
 943     browse->selected = selected;
 944     browse->buf = NULL;
 945     browse->bufsize = 0;
 946 }
 947
 948 #define NUM_TC_BACKUP   3
 949 static struct tree_context backups[NUM_TC_BACKUP];
 950 /* do not make backup if it is not recursive call */
 951 static int backup_count = -1;
 952 int rockbox_browse(struct browse_context *browse)
 953 {
 954     static char current[MAX_PATH];
 955     int ret_val = 0;
 956     int dirfilter = browse->dirfilter;
 957
 958     if (backup_count >= NUM_TC_BACKUP)
 959         return GO_TO_PREVIOUS;
 960     if (backup_count >= 0)
 961         backups[backup_count] = tc;
 962     backup_count++;
 963
 964     tc.dirfilter = &dirfilter;
 965     tc.sort_dir = global_settings.sort_dir;
 966
 967     reload_dir = true;
 968     if (*tc.dirfilter >= NUM_FILTER_MODES)
 969     {
 970         int last_context;
 971
 972         tc.browse = browse;
 973         tc.selected_item = 0;
 974         tc.dirlevel = 0;
 975         strlcpy(tc.currdir, browse->root, sizeof(tc.currdir));
 976         start_wps = false;
 977         last_context = curr_context;
 978
 979         if (browse->selected)
 980         {
 981             snprintf(current, sizeof(current), "%s/%s",
 982                 browse->root, browse->selected);
 983             set_current_file(current);
 984             /* set_current_file changes dirlevel, change it back */
 985             tc.dirlevel = 0;
 986         }
 987
 988         ret_val = dirbrowse();
 989         curr_context = last_context;
 990     }
 991     else
 992     {
 993         if (dirfilter != SHOW_ID3DB)
 994             tc.dirfilter = &global_settings.dirfilter;
 995         tc.browse = browse;
 996         strcpy(current, browse->root);
 997         set_current_file(current);
 998         ret_val = dirbrowse();
 999     }
1000     backup_count--;
1001     if (backup_count >= 0)
1002         tc = backups[backup_count];
1003     return ret_val;
1004 }
1005
1006 void tree_mem_init(void)
1007 {
1008     /* We copy the settings value in case it is changed by the user. We can't
1009        use it until the next reboot. */
1010     max_files = global_settings.max_files_in_dir;
1011
1012     /* initialize tree context struct */
1013     memset(&tc, 0, sizeof(tc));
1014     tc.dirfilter = &global_settings.dirfilter;
1015     tc.sort_dir = global_settings.sort_dir;
1016
1017     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
1018     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
1019
1020     tc.dircache_size = max_files * sizeof(struct entry);
1021     tc.dircache = buffer_alloc(tc.dircache_size);
1022     tree_get_filetypes(&filetypes, &filetypes_count);
1023 }
1024
1025 bool bookmark_play(char *resume_file, int index, int offset, int seed,
1026                    char *filename)
1027 {
1028     int i;
1029     char* suffix = strrchr(resume_file, '.');
1030     bool started = false;
1031
1032     if (suffix != NULL &&
1033         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
1034     {
1035         /* Playlist playback */
1036         char* slash;
1037         /* check that the file exists */
1038         if(!file_exists(resume_file))
1039             return false;
1040
1041         slash = strrchr(resume_file,'/');
1042         if (slash)
1043         {
1044             char* cp;
1045             *slash=0;
1046
1047             cp=resume_file;
1048             if (!cp[0])
1049                 cp="/";
1050
1051             if (playlist_create(cp, slash+1) != -1)
1052             {
1053                 if (global_settings.playlist_shuffle)
1054                     playlist_shuffle(seed, -1);
1055                 playlist_start(index,offset);
1056                 started = true;
1057             }
1058             *slash='/';
1059         }
1060     }
1061     else
1062     {
1063         /* Directory playback */
1064         lastdir[0]='\0';
1065         if (playlist_create(resume_file, NULL) != -1)
1066         {
1067             char filename_buf[MAX_PATH + 1];
1068             const char* peek_filename;
1069             resume_directory(resume_file);
1070             if (global_settings.playlist_shuffle)
1071                 playlist_shuffle(seed, -1);
1072
1073             /* Check if the file is at the same spot in the directory,
1074                else search for it */
1075             peek_filename = playlist_peek(index, filename_buf,
1076                 sizeof(filename_buf));
1077
1078             if (peek_filename == NULL)
1079             {
1080                 /* playlist has shrunk, search from the top */
1081                 index = 0;
1082                 peek_filename = playlist_peek(index, filename_buf,
1083                     sizeof(filename_buf));
1084                 if (peek_filename == NULL)
1085                     return false;
1086             }
1087
1088             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1089             {
1090                 for ( i=0; i < playlist_amount(); i++ )
1091                 {
1092                     peek_filename = playlist_peek(i, filename_buf,
1093                         sizeof(filename_buf));
1094
1095                     if (peek_filename == NULL)
1096                         return false;
1097
1098                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1099                         break;
1100                 }
1101                 if (i < playlist_amount())
1102                     index = i;
1103                 else
1104                     return false;
1105             }
1106             playlist_start(index,offset);
1107             started = true;
1108         }
1109     }
1110
1111     if (started)
1112         start_wps = true;
1113     return started;
1114 }
1115
1116 static void say_filetype(int attr)
1117 {
1118     /* try to find a voice ID for the extension, if known */
1119     int j;
1120     attr &= FILE_ATTR_MASK; /* file type */
1121     for (j=0; j<filetypes_count; j++)
1122         if (attr == filetypes[j].tree_attr)
1123         {
1124             talk_id(filetypes[j].voiceclip, true);
1125             return;
1126         }
1127 }
1128
1129 static int ft_play_dirname(char* name)
1130 {
1131 #if CONFIG_CODEC != SWCODEC
1132     if (audio_status() & AUDIO_STATUS_PLAY)
1133         return 0;
1134 #endif
1135
1136     if(talk_file(tc.currdir, name, dir_thumbnail_name, NULL,
1137                  NULL, false))
1138     {
1139         if(global_settings.talk_filetype)
1140             talk_id(VOICE_DIR, true);
1141         return 1;
1142     }
1143     else
1144         return -1;
1145 }
1146
1147 static void ft_play_filename(char *dir, char *file)
1148 {
1149 #if CONFIG_CODEC != SWCODEC
1150     if (audio_status() & AUDIO_STATUS_PLAY)
1151         return;
1152 #endif
1153
1154     if (strlen(file) >= strlen(file_thumbnail_ext)
1155         && strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1156                       file_thumbnail_ext))
1157         /* file has no .talk extension */
1158         talk_file(dir, NULL, file, file_thumbnail_ext,
1159                   NULL, false);
1160     else
1161         /* it already is a .talk file, play this directly, but prefix it. */
1162         talk_file(dir, NULL, file, NULL,
1163                   TALK_IDARRAY(LANG_VOICE_DIR_HOVER), false);
1164 }
1165
1166 /* These two functions are called by the USB and shutdown handlers */
1167 void tree_flush(void)
1168 {
1169 #ifdef HAVE_TAGCACHE
1170     tagcache_shutdown();
1171 #endif
1172
1173 #ifdef HAVE_TC_RAMCACHE
1174     tagcache_unload_ramcache();
1175 #endif
1176
1177 #ifdef HAVE_DIRCACHE
1178     {
1179         int old_val = global_status.dircache_size;
1180         if (global_settings.dircache)
1181         {
1182             if (!dircache_is_initializing())
1183                 global_status.dircache_size = dircache_get_cache_size();
1184 # ifdef HAVE_EEPROM_SETTINGS
1185             if (firmware_settings.initialized)
1186                 dircache_save();
1187 # endif
1188             dircache_disable();
1189         }
1190         else
1191         {
1192             global_status.dircache_size = 0;
1193         }
1194         if (old_val != global_status.dircache_size)
1195             status_save();
1196     }
1197 #endif
1198 }
1199
1200 void tree_restore(void)
1201 {
1202 #ifdef HAVE_EEPROM_SETTINGS
1203     firmware_settings.disk_clean = false;
1204 #endif
1205
1206 #ifdef HAVE_TC_RAMCACHE
1207     remove(TAGCACHE_STATEFILE);
1208 #endif
1209
1210 #ifdef HAVE_DIRCACHE
1211     remove(DIRCACHE_FILE);
1212     if (global_settings.dircache)
1213     {
1214         /* Print "Scanning disk..." to the display. */
1215         splash(0, str(LANG_SCANNING_DISK));
1216
1217         dircache_build(global_status.dircache_size);
1218     }
1219 #endif
1220 #ifdef HAVE_TAGCACHE
1221     tagcache_start_scan();
1222 #endif
1223 }