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
  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     if(!dir_exists(ROCKBOX_DIR))
 264     {   /* No need to localise this message.
 265            If .rockbox is missing, it wouldn't work anyway */
 266         int i;
 267         FOR_NB_SCREENS(i)
 268             screens[i].clear_display();
 269         splash(HZ*2, "No .rockbox directory");
 270         FOR_NB_SCREENS(i)
 271             screens[i].clear_display();
 272         splash(HZ*2, "Installation incomplete");
 273         return false;
 274     }
 275     return true;
 276 }
 277
 278 /* do this really late in the init sequence */
 279 void tree_gui_init(void)
 280 {
 281     check_rockboxdir();
 282
 283     strcpy(tc.currdir, "/");
 284
 285 #ifdef HAVE_LCD_CHARCELLS
 286     int i;
 287     FOR_NB_SCREENS(i)
 288         screens[i].double_height(false);
 289 #endif
 290 #ifdef HAVE_BUTTONBAR
 291     gui_buttonbar_init(&tree_buttonbar);
 292     /* since archos only have one screen, no need to create more than that */
 293     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 294 #endif
 295     gui_synclist_init(&tree_lists, &tree_get_filename, &tc, false, 1, NULL);
 296     gui_synclist_set_voice_callback(&tree_lists, tree_voice_cb);
 297     gui_synclist_set_icon_callback(&tree_lists,
 298                                     global_settings.show_icons?&tree_get_fileicon:NULL);
 299 #ifdef HAVE_LCD_COLOR
 300     gui_synclist_set_color_callback(&tree_lists, &tree_get_filecolor);
 301 #endif
 302 }
 303
 304
 305 /* drawer function for the GUI_EVENT_REDRAW callback */
 306 void tree_drawlists(void)
 307 {
 308     /* band-aid to fix the bar/list redrawing properly after leaving a plugin */
 309     send_event(GUI_EVENT_THEME_CHANGED, NULL);
 310     /* end bandaid */
 311     gui_synclist_draw(&tree_lists);
 312 }
 313
 314
 315 struct tree_context* tree_get_context(void)
 316 {
 317     return &tc;
 318 }
 319
 320 /*
 321  * Returns the position of a given file in the current directory
 322  * returns -1 if not found
 323  */
 324 static int tree_get_file_position(char * filename)
 325 {
 326     int i;
 327
 328     /* use lastfile to determine the selected item (default=0) */
 329     for (i=0; i < tc.filesindir; i++)
 330     {
 331         struct entry* dc = tc.dircache;
 332         struct entry* e = &dc[i];
 333         if (!strcasecmp(e->name, filename))
 334             return(i);
 335     }
 336     return(-1);/* no file can match, returns undefined */
 337 }
 338
 339 /*
 340  * Called when a new dir is loaded (for example when returning from other apps ...)
 341  * also completely redraws the tree
 342  */
 343 static int update_dir(void)
 344 {
 345     bool changed = false;
 346 #ifdef HAVE_TAGCACHE
 347     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 348     /* Checks for changes */
 349     if (id3db) {
 350         if (tc.currtable != lasttable ||
 351             tc.currextra != lastextra ||
 352             tc.firstpos  != lastfirstpos ||
 353             reload_dir)
 354         {
 355             if (tagtree_load(&tc) < 0)
 356                 return -1;
 357
 358             lasttable = tc.currtable;
 359             lastextra = tc.currextra;
 360             lastfirstpos = tc.firstpos;
 361             changed = true;
 362         }
 363     }
 364     else
 365 #endif
 366     {
 367         /* if the tc.currdir has been changed, reload it ...*/
 368         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir)
 369         {
 370             if (ft_load(&tc, NULL) < 0)
 371                 return -1;
 372             strcpy(lastdir, tc.currdir);
 373             changed = true;
 374         }
 375     }
 376     /* if selected item is undefined */
 377     if (tc.selected_item == -1)
 378     {
 379         /* use lastfile to determine the selected item */
 380         tc.selected_item = tree_get_file_position(lastfile);
 381
 382         /* If the file doesn't exists, select the first one (default) */
 383         if(tc.selected_item < 0)
 384             tc.selected_item = 0;
 385         changed = true;
 386     }
 387     if (changed)
 388     {
 389         if(
 390 #ifdef HAVE_TAGCACHE
 391         !id3db &&
 392 #endif
 393         tc.dirfull )
 394         {
 395             splash(HZ, ID2P(LANG_SHOWDIR_BUFFER_FULL));
 396         }
 397     }
 398 #ifdef HAVE_TAGCACHE
 399     if (id3db)
 400     {
 401 #ifdef HAVE_LCD_BITMAP
 402         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 403             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 404         {
 405             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 406                 filetype_get_icon(ATTR_DIRECTORY));
 407         }
 408         else
 409         {
 410             /* Must clear the title as the list is reused */
 411             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 412         }
 413 #endif
 414     }
 415     else
 416 #endif
 417     {
 418 #ifdef HAVE_LCD_BITMAP
 419         if (tc.browse && tc.browse->title)
 420         {
 421             int icon = tc.browse->icon;
 422             if (icon == NOICON)
 423                 icon = filetype_get_icon(ATTR_DIRECTORY);
 424             gui_synclist_set_title(&tree_lists, tc.browse->title, icon);
 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,
 454                                    global_settings.show_icons?tree_get_fileicon:NULL);
 455     if( tc.selected_item >= tc.filesindir)
 456         tc.selected_item=tc.filesindir-1;
 457
 458     gui_synclist_select_item(&tree_lists, tc.selected_item);
 459 #ifdef HAVE_BUTTONBAR
 460     if (global_settings.buttonbar) {
 461         if (*tc.dirfilter < NUM_FILTER_MODES)
 462             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 463                           str(LANG_SYSFONT_DIRBROWSE_F2),
 464                           str(LANG_SYSFONT_DIRBROWSE_F3));
 465         else
 466             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 467         gui_buttonbar_draw(&tree_buttonbar);
 468     }
 469 #endif
 470     gui_synclist_draw(&tree_lists);
 471     gui_synclist_speak_item(&tree_lists);
 472     return tc.filesindir;
 473 }
 474
 475 /* load tracks from specified directory to resume play */
 476 void resume_directory(const char *dir)
 477 {
 478     int dirfilter = *tc.dirfilter;
 479     int ret;
 480 #ifdef HAVE_TAGCACHE
 481     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 482 #endif
 483     /* make sure the dirfilter is sane. The only time it should be possible
 484      * thats its not is when resume playlist is called from a plugin
 485      */
 486 #ifdef HAVE_TAGCACHE
 487     if (!id3db)
 488 #endif
 489         *tc.dirfilter = global_settings.dirfilter;
 490     ret = ft_load(&tc, dir);
 491     *tc.dirfilter = dirfilter;
 492     if (ret < 0)
 493         return;
 494     lastdir[0] = 0;
 495
 496     ft_build_playlist(&tc, 0);
 497
 498 #ifdef HAVE_TAGCACHE
 499     if (id3db)
 500         tagtree_load(&tc);
 501 #endif
 502 }
 503
 504 /* Returns the current working directory and also writes cwd to buf if
 505    non-NULL.  In case of error, returns NULL. */
 506 char *getcwd(char *buf, getcwd_size_t size)
 507 {
 508     if (!buf)
 509         return tc.currdir;
 510     else if (size)
 511     {
 512         if ((getcwd_size_t)strlcpy(buf, tc.currdir, size) < size)
 513             return buf;
 514     }
 515     /* size == 0, or truncation in strlcpy */
 516     return NULL;
 517 }
 518
 519 /* Force a reload of the directory next time directory browser is called */
 520 void reload_directory(void)
 521 {
 522     reload_dir = true;
 523 }
 524
 525 char* get_current_file(char* buffer, size_t buffer_len)
 526 {
 527 #ifdef HAVE_TAGCACHE
 528     /* in ID3DB mode it is a bad idea to call this function */
 529     /* (only happens with `follow playlist') */
 530     if( *tc.dirfilter == SHOW_ID3DB )
 531         return NULL;
 532 #endif
 533
 534     struct entry* dc = tc.dircache;
 535     struct entry* e = &dc[tc.selected_item];
 536     if (getcwd(buffer, buffer_len))
 537     {
 538         if (tc.dirlength)
 539         {
 540             if (buffer[strlen(buffer)-1] != '/')
 541                 strlcat(buffer, "/", buffer_len);
 542             if (strlcat(buffer, e->name, buffer_len) >= buffer_len)
 543                 return NULL;
 544         }
 545         return buffer;
 546     }
 547     return NULL;
 548 }
 549
 550 /* Allow apps to change our dirfilter directly (required for sub browsers)
 551    if they're suddenly going to become a file browser for example */
 552 void set_dirfilter(int l_dirfilter)
 553 {
 554     *tc.dirfilter = l_dirfilter;
 555 }
 556
 557 /* Selects a file and update tree context properly */
 558 void set_current_file(const char *path)
 559 {
 560     const char *name;
 561     int i;
 562
 563 #ifdef HAVE_TAGCACHE
 564     /* in ID3DB mode it is a bad idea to call this function */
 565     /* (only happens with `follow playlist') */
 566     if( *tc.dirfilter == SHOW_ID3DB )
 567         return;
 568 #endif
 569
 570     /* separate directory from filename */
 571     /* gets the directory's name and put it into tc.currdir */
 572     name = strrchr(path+1,'/');
 573     if (name)
 574     {
 575         strlcpy(tc.currdir, path, name - path + 1);
 576         name++;
 577     }
 578     else
 579     {
 580         strcpy(tc.currdir, "/");
 581         name = path+1;
 582     }
 583
 584     strcpy(lastfile, name);
 585
 586
 587     /* If we changed dir we must recalculate the dirlevel
 588        and adjust the selected history properly */
 589     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 590     {
 591         tc.dirlevel =  0;
 592         tc.selected_item_history[tc.dirlevel] = -1;
 593
 594         /* use '/' to calculate dirlevel */
 595         for (i = 1; path[i] != '\0'; i++)
 596         {
 597             if (path[i] == '/')
 598             {
 599                 tc.dirlevel++;
 600                 tc.selected_item_history[tc.dirlevel] = -1;
 601             }
 602         }
 603     }
 604     if (ft_load(&tc, NULL) >= 0)
 605     {
 606         tc.selected_item = tree_get_file_position(lastfile);
 607     }
 608 }
 609
 610
 611 /* main loop, handles key events */
 612 static int dirbrowse(void)
 613 {
 614     int numentries=0;
 615     char buf[MAX_PATH];
 616     int button, oldbutton;
 617     bool reload_root = false;
 618     int lastfilter = *tc.dirfilter;
 619     bool lastsortcase = global_settings.sort_case;
 620     bool exit_func = false;
 621
 622     char* currdir = tc.currdir; /* just a shortcut */
 623 #ifdef HAVE_TAGCACHE
 624     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 625
 626     if (id3db)
 627         curr_context=CONTEXT_ID3DB;
 628     else
 629 #endif
 630         curr_context=CONTEXT_TREE;
 631     if (tc.selected_item < 0)
 632         tc.selected_item = 0;
 633 #ifdef HAVE_TAGCACHE
 634     tc.firstpos = 0;
 635     lasttable = -1;
 636     lastextra = -1;
 637     lastfirstpos = 0;
 638 #endif
 639
 640     start_wps = false;
 641     numentries = update_dir();
 642     reload_dir = false;
 643     if (numentries == -1)
 644         return GO_TO_PREVIOUS;  /* currdir is not a directory */
 645
 646     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 647     {
 648         splash(HZ*2, ID2P(LANG_NO_FILES));
 649         return GO_TO_PREVIOUS;  /* No files found for rockbox_browse() */
 650     }
 651
 652     gui_synclist_draw(&tree_lists);
 653     while(1) {
 654         struct entry *dircache = tc.dircache;
 655         bool restore = false;
 656         if (tc.dirlevel < 0)
 657             tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 658 #ifdef BOOTFILE
 659         if (boot_changed) {
 660             static const char *lines[]={ID2P(LANG_BOOT_CHANGED), ID2P(LANG_REBOOT_NOW)};
 661             static const struct text_message message={lines, 2};
 662             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 663                 rolo_load("/" BOOTFILE);
 664             restore = true;
 665             boot_changed = false;
 666         }
 667 #endif
 668         button = get_action(CONTEXT_TREE,
 669                             list_do_action_timeout(&tree_lists, HZ/2));
 670         oldbutton = button;
 671         gui_synclist_do_button(&tree_lists, &button,LIST_WRAP_UNLESS_HELD);
 672         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 673         switch ( button ) {
 674             case ACTION_STD_OK:
 675                 /* nothing to do if no files to display */
 676                 if ( numentries == 0 )
 677                     break;
 678
 679                 if ((tc.browse->flags & BROWSE_SELECTONLY) &&
 680                     !(dircache[tc.selected_item].attr & ATTR_DIRECTORY))
 681                 {
 682                     tc.browse->flags |= BROWSE_SELECTED;
 683                     get_current_file(tc.browse->buf, tc.browse->bufsize);
 684                     return GO_TO_PREVIOUS;
 685                 }
 686
 687 #ifdef HAVE_TAGCACHE
 688                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 689 #else
 690                 switch (ft_enter(&tc))
 691 #endif
 692                 {
 693                     case GO_TO_FILEBROWSER: reload_dir = true; break;
 694                     case GO_TO_WPS:
 695                         return GO_TO_WPS;
 696 #if CONFIG_TUNER
 697                     case GO_TO_FM:
 698                         return GO_TO_FM;
 699 #endif
 700                     case GO_TO_ROOT: exit_func = true; break;
 701                     default: break;
 702                 }
 703                 restore = true;
 704                 break;
 705
 706             case ACTION_STD_CANCEL:
 707                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 708                     exit_func = true;
 709                     break;
 710                 }
 711                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 712                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 713                 {
 714 #ifdef HAVE_LCD_BITMAP /* charcell doesnt have ACTION_TREE_PGLEFT so this isnt needed */
 715                     if (oldbutton == ACTION_TREE_PGLEFT)
 716                         break;
 717                     else
 718 #endif
 719                         return GO_TO_ROOT;
 720                 }
 721
 722 #ifdef HAVE_TAGCACHE
 723                 if (id3db)
 724                     tagtree_exit(&tc);
 725                 else
 726 #endif
 727                     if (ft_exit(&tc) == 3)
 728                         exit_func = true;
 729
 730                 restore = true;
 731                 break;
 732
 733             case ACTION_TREE_STOP:
 734                 if (list_stop_handler())
 735                     restore = true;
 736                 break;
 737
 738             case ACTION_STD_MENU:
 739                 return GO_TO_ROOT;
 740                 break;
 741
 742 #ifdef HAVE_RECORDING
 743             case ACTION_STD_REC:
 744                 return GO_TO_RECSCREEN;
 745 #endif
 746
 747             case ACTION_TREE_WPS:
 748                 return GO_TO_PREVIOUS_MUSIC;
 749                 break;
 750 #ifdef HAVE_QUICKSCREEN
 751             case ACTION_STD_QUICKSCREEN:
 752                 /* don't enter f2 from plugin browser */
 753                 if (*tc.dirfilter < NUM_FILTER_MODES)
 754                 {
 755                     if (quick_screen_quick(button))
 756                         reload_dir = true;
 757                     restore = true;
 758                 }
 759                 break;
 760 #endif
 761 #ifdef BUTTON_F3
 762             case ACTION_F3:
 763                 /* don't enter f3 from plugin browser */
 764                 if (*tc.dirfilter < NUM_FILTER_MODES)
 765                 {
 766                     if (quick_screen_f3(ACTION_F3))
 767                         reload_dir = true;
 768                     restore = true;
 769                 }
 770                 break;
 771 #endif
 772
 773 #ifdef HAVE_HOTKEY
 774             case ACTION_TREE_HOTKEY:
 775                 if (!global_settings.hotkey_tree)
 776                     break;
 777                 /* fall through */
 778 #endif
 779             case ACTION_STD_CONTEXT:
 780             {
 781                 bool hotkey = button == ACTION_TREE_HOTKEY;
 782                 int onplay_result;
 783                 int attr = 0;
 784
 785                 if (tc.browse->flags & BROWSE_NO_CONTEXT_MENU)
 786                     break;
 787
 788                 if(!numentries)
 789                     onplay_result = onplay(NULL, 0, curr_context, hotkey);
 790                 else {
 791 #ifdef HAVE_TAGCACHE
 792                     if (id3db)
 793                     {
 794                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 795                         {
 796                             attr = FILE_ATTR_AUDIO;
 797                             tagtree_get_filename(&tc, buf, sizeof(buf));
 798                         }
 799                         else
 800                             attr = ATTR_DIRECTORY;
 801                     }
 802                     else
 803 #endif
 804                     {
 805                         attr = dircache[tc.selected_item].attr;
 806
 807                         if (currdir[1]) /* Not in / */
 808                             snprintf(buf, sizeof buf, "%s/%s",
 809                                      currdir,
 810                                      dircache[tc.selected_item].name);
 811                         else /* In / */
 812                             snprintf(buf, sizeof buf, "/%s",
 813                                      dircache[tc.selected_item].name);
 814                     }
 815                     onplay_result = onplay(buf, attr, curr_context, hotkey);
 816                 }
 817                 switch (onplay_result)
 818                 {
 819                     case ONPLAY_MAINMENU:
 820                         return GO_TO_ROOT;
 821
 822                     case ONPLAY_OK:
 823                         restore = true;
 824                         break;
 825
 826                     case ONPLAY_RELOAD_DIR:
 827                         reload_dir = true;
 828                         break;
 829
 830                     case ONPLAY_START_PLAY:
 831                         return GO_TO_WPS;
 832                         break;
 833                 }
 834                 break;
 835             }
 836
 837 #ifdef HAVE_HOTSWAP
 838             case SYS_FS_CHANGED:
 839 #ifdef HAVE_TAGCACHE
 840                 if (!id3db)
 841 #endif
 842                     reload_dir = true;
 843                 /* The 'dir no longer valid' situation will be caught later
 844                  * by checking the showdir() result. */
 845                 break;
 846 #endif
 847
 848             default:
 849                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 850                 {
 851                     if(*tc.dirfilter > NUM_FILTER_MODES)
 852                         /* leave sub-browsers after usb, doing otherwise
 853                            might be confusing to the user */
 854                         exit_func = true;
 855                     else
 856                         reload_dir = true;
 857                 }
 858                 break;
 859         }
 860         if (start_wps)
 861             return GO_TO_WPS;
 862         if (button && !IS_SYSEVENT(button))
 863         {
 864             storage_spin();
 865         }
 866
 867
 868     check_rescan:
 869         /* do we need to rescan dir? */
 870         if (reload_dir || reload_root ||
 871             lastfilter != *tc.dirfilter ||
 872             lastsortcase != global_settings.sort_case)
 873         {
 874             if (reload_root) {
 875                 strcpy(currdir, "/");
 876                 tc.dirlevel = 0;
 877 #ifdef HAVE_TAGCACHE
 878                 tc.currtable = 0;
 879                 tc.currextra = 0;
 880                 lasttable = -1;
 881                 lastextra = -1;
 882 #endif
 883                 reload_root = false;
 884             }
 885
 886             if (!reload_dir)
 887             {
 888                 gui_synclist_select_item(&tree_lists, 0);
 889                 gui_synclist_draw(&tree_lists);
 890                 tc.selected_item = 0;
 891                 lastdir[0] = 0;
 892             }
 893
 894             lastfilter = *tc.dirfilter;
 895             lastsortcase = global_settings.sort_case;
 896             restore = true;
 897         }
 898
 899         if (exit_func)
 900             return GO_TO_PREVIOUS;
 901
 902         if (restore || reload_dir) {
 903             /* restore display */
 904             numentries = update_dir();
 905             reload_dir = false;
 906             if (currdir[1] && (numentries < 0))
 907             {   /* not in root and reload failed */
 908                 reload_root = true; /* try root */
 909                 goto check_rescan;
 910             }
 911         }
 912     }
 913     return true;
 914 }
 915
 916 bool create_playlist(void)
 917 {
 918     char filename[MAX_PATH];
 919
 920     if (tc.currdir[1])
 921         snprintf(filename, sizeof filename, "%s.m3u8", tc.currdir);
 922     else
 923         snprintf(filename, sizeof filename, "%s/all.m3u8",
 924                 catalog_get_directory());
 925
 926
 927     if (kbd_input(filename, MAX_PATH))
 928         return false;
 929     splashf(0, "%s %s", str(LANG_CREATING), filename);
 930
 931     trigger_cpu_boost();
 932     catalog_add_to_a_playlist(tc.currdir, ATTR_DIRECTORY, true, filename);
 933     cancel_cpu_boost();
 934
 935     return true;
 936 }
 937
 938 void browse_context_init(struct browse_context *browse,
 939                          int dirfilter, unsigned flags,
 940                          char *title, enum themable_icons icon,
 941                          const char *root, const char *selected)
 942 {
 943     browse->dirfilter = dirfilter;
 944     browse->flags = flags;
 945     browse->callback_show_item = NULL;
 946     browse->title = title;
 947     browse->icon = icon;
 948     browse->root = root;
 949     browse->selected = selected;
 950     browse->buf = NULL;
 951     browse->bufsize = 0;
 952 }
 953
 954 #define NUM_TC_BACKUP   3
 955 static struct tree_context backups[NUM_TC_BACKUP];
 956 /* do not make backup if it is not recursive call */
 957 static int backup_count = -1;
 958 int rockbox_browse(struct browse_context *browse)
 959 {
 960     static char current[MAX_PATH];
 961     int ret_val = 0;
 962     int dirfilter = browse->dirfilter;
 963
 964     if (backup_count >= NUM_TC_BACKUP)
 965         return GO_TO_PREVIOUS;
 966     if (backup_count >= 0)
 967         backups[backup_count] = tc;
 968     backup_count++;
 969
 970     tc.dirfilter = &dirfilter;
 971     tc.sort_dir = global_settings.sort_dir;
 972
 973     reload_dir = true;
 974     if (*tc.dirfilter >= NUM_FILTER_MODES)
 975     {
 976         int last_context;
 977
 978         tc.browse = browse;
 979         tc.selected_item = 0;
 980         tc.dirlevel = 0;
 981         strlcpy(tc.currdir, browse->root, sizeof(tc.currdir));
 982         start_wps = false;
 983         last_context = curr_context;
 984
 985         if (browse->selected)
 986         {
 987             snprintf(current, sizeof(current), "%s/%s",
 988                 browse->root, browse->selected);
 989             set_current_file(current);
 990             /* set_current_file changes dirlevel, change it back */
 991             tc.dirlevel = 0;
 992         }
 993
 994         ret_val = dirbrowse();
 995         curr_context = last_context;
 996     }
 997     else
 998     {
 999         if (dirfilter != SHOW_ID3DB)
1000             tc.dirfilter = &global_settings.dirfilter;
1001         tc.browse = browse;
1002         strcpy(current, browse->root);
1003         set_current_file(current);
1004         ret_val = dirbrowse();
1005     }
1006     backup_count--;
1007     if (backup_count >= 0)
1008         tc = backups[backup_count];
1009     return ret_val;
1010 }
1011
1012 void tree_mem_init(void)
1013 {
1014     /* initialize tree context struct */
1015     memset(&tc, 0, sizeof(tc));
1016     tc.dirfilter = &global_settings.dirfilter;
1017     tc.sort_dir = global_settings.sort_dir;
1018
1019     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH *
1020         global_settings.max_files_in_dir;
1021     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
1022
1023     tc.dircache_count = global_settings.max_files_in_dir;
1024     tc.dircache = buffer_alloc(global_settings.max_files_in_dir *
1025         sizeof(struct entry));
1026     tree_get_filetypes(&filetypes, &filetypes_count);
1027 }
1028
1029 bool bookmark_play(char *resume_file, int index, int offset, int seed,
1030                    char *filename)
1031 {
1032     int i;
1033     char* suffix = strrchr(resume_file, '.');
1034     bool started = false;
1035
1036     if (suffix != NULL &&
1037         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
1038     {
1039         /* Playlist playback */
1040         char* slash;
1041         /* check that the file exists */
1042         if(!file_exists(resume_file))
1043             return false;
1044
1045         slash = strrchr(resume_file,'/');
1046         if (slash)
1047         {
1048             char* cp;
1049             *slash=0;
1050
1051             cp=resume_file;
1052             if (!cp[0])
1053                 cp="/";
1054
1055             if (playlist_create(cp, slash+1) != -1)
1056             {
1057                 if (global_settings.playlist_shuffle)
1058                     playlist_shuffle(seed, -1);
1059                 playlist_start(index,offset);
1060                 started = true;
1061             }
1062             *slash='/';
1063         }
1064     }
1065     else
1066     {
1067         /* Directory playback */
1068         lastdir[0]='\0';
1069         if (playlist_create(resume_file, NULL) != -1)
1070         {
1071             char filename_buf[MAX_PATH + 1];
1072             const char* peek_filename;
1073             resume_directory(resume_file);
1074             if (global_settings.playlist_shuffle)
1075                 playlist_shuffle(seed, -1);
1076
1077             /* Check if the file is at the same spot in the directory,
1078                else search for it */
1079             peek_filename = playlist_peek(index, filename_buf,
1080                 sizeof(filename_buf));
1081
1082             if (peek_filename == NULL)
1083             {
1084                 /* playlist has shrunk, search from the top */
1085                 index = 0;
1086                 peek_filename = playlist_peek(index, filename_buf,
1087                     sizeof(filename_buf));
1088                 if (peek_filename == NULL)
1089                     return false;
1090             }
1091
1092             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1093             {
1094                 for ( i=0; i < playlist_amount(); i++ )
1095                 {
1096                     peek_filename = playlist_peek(i, filename_buf,
1097                         sizeof(filename_buf));
1098
1099                     if (peek_filename == NULL)
1100                         return false;
1101
1102                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1103                         break;
1104                 }
1105                 if (i < playlist_amount())
1106                     index = i;
1107                 else
1108                     return false;
1109             }
1110             playlist_start(index,offset);
1111             started = true;
1112         }
1113     }
1114
1115     if (started)
1116         start_wps = true;
1117     return started;
1118 }
1119
1120 static void say_filetype(int attr)
1121 {
1122     /* try to find a voice ID for the extension, if known */
1123     int j;
1124     attr &= FILE_ATTR_MASK; /* file type */
1125     for (j=0; j<filetypes_count; j++)
1126         if (attr == filetypes[j].tree_attr)
1127         {
1128             talk_id(filetypes[j].voiceclip, true);
1129             return;
1130         }
1131 }
1132
1133 static int ft_play_dirname(char* name)
1134 {
1135 #if CONFIG_CODEC != SWCODEC
1136     if (audio_status() & AUDIO_STATUS_PLAY)
1137         return 0;
1138 #endif
1139
1140     if(talk_file(tc.currdir, name, dir_thumbnail_name, NULL,
1141                  NULL, false))
1142     {
1143         if(global_settings.talk_filetype)
1144             talk_id(VOICE_DIR, true);
1145         return 1;
1146     }
1147     else
1148         return -1;
1149 }
1150
1151 static void ft_play_filename(char *dir, char *file)
1152 {
1153 #if CONFIG_CODEC != SWCODEC
1154     if (audio_status() & AUDIO_STATUS_PLAY)
1155         return;
1156 #endif
1157
1158     if (strlen(file) >= strlen(file_thumbnail_ext)
1159         && strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1160                       file_thumbnail_ext))
1161         /* file has no .talk extension */
1162         talk_file(dir, NULL, file, file_thumbnail_ext,
1163                   NULL, false);
1164     else
1165         /* it already is a .talk file, play this directly, but prefix it. */
1166         talk_file(dir, NULL, file, NULL,
1167                   TALK_IDARRAY(LANG_VOICE_DIR_HOVER), false);
1168 }
1169
1170 /* These two functions are called by the USB and shutdown handlers */
1171 void tree_flush(void)
1172 {
1173 #ifdef HAVE_TAGCACHE
1174     tagcache_shutdown();
1175 #endif
1176
1177 #ifdef HAVE_TC_RAMCACHE
1178     tagcache_unload_ramcache();
1179 #endif
1180
1181 #ifdef HAVE_DIRCACHE
1182     {
1183         int old_val = global_status.dircache_size;
1184         if (global_settings.dircache)
1185         {
1186             if (!dircache_is_initializing())
1187                 global_status.dircache_size = dircache_get_cache_size();
1188 # ifdef HAVE_EEPROM_SETTINGS
1189             if (firmware_settings.initialized)
1190                 dircache_save();
1191 # endif
1192             dircache_disable();
1193         }
1194         else
1195         {
1196             global_status.dircache_size = 0;
1197         }
1198         if (old_val != global_status.dircache_size)
1199             status_save();
1200     }
1201 #endif
1202 }
1203
1204 void tree_restore(void)
1205 {
1206 #ifdef HAVE_EEPROM_SETTINGS
1207     firmware_settings.disk_clean = false;
1208 #endif
1209
1210 #ifdef HAVE_TC_RAMCACHE
1211     remove(TAGCACHE_STATEFILE);
1212 #endif
1213
1214 #ifdef HAVE_DIRCACHE
1215     remove(DIRCACHE_FILE);
1216     if (global_settings.dircache)
1217     {
1218         /* Print "Scanning disk..." to the display. */
1219         splash(0, str(LANG_SCANNING_DISK));
1220
1221         dircache_build(global_status.dircache_size);
1222     }
1223 #endif
1224 #ifdef HAVE_TAGCACHE
1225     tagcache_start_scan();
1226 #endif
1227 }