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 "core_alloc.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 char lastfile[MAX_PATH];
  92 static char lastdir[MAX_PATH];
  93 #ifdef HAVE_TAGCACHE
  94 static int lasttable, lastextra, lastfirstpos;
  95 #endif
  96
  97 static bool reload_dir = false;
  98
  99 static bool start_wps = false;
 100 static int curr_context = false;/* id3db or tree*/
 101
 102 static int dirbrowse(void);
 103 static int ft_play_dirname(char* name);
 104 static void ft_play_filename(char *dir, char *file);
 105 static void say_filetype(int attr);
 106
 107 struct entry* tree_get_entries(struct tree_context *t)
 108 {
 109     return core_get_data(t->cache.entries_handle);
 110 }
 111
 112 struct entry* tree_get_entry_at(struct tree_context *t, int index)
 113 {
 114     struct entry* entries = tree_get_entries(t);
 115     return &entries[index];
 116 }
 117
 118
 119 static const char* tree_get_filename(int selected_item, void *data,
 120                                      char *buffer, size_t buffer_len)
 121 {
 122     struct tree_context * local_tc=(struct tree_context *)data;
 123     char *name;
 124     int attr=0;
 125     bool stripit = false;
 126 #ifdef HAVE_TAGCACHE
 127     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 128
 129     if (id3db)
 130     {
 131         return tagtree_get_entry_name(&tc, selected_item, buffer, buffer_len);
 132     }
 133     else
 134 #endif
 135     {
 136         struct entry* e = tree_get_entry_at(local_tc, selected_item);
 137         name = e->name;
 138         attr = e->attr;
 139     }
 140
 141     if(!(attr & ATTR_DIRECTORY))
 142     {
 143         switch(global_settings.show_filename_ext)
 144         {
 145             case 0:
 146                 /* show file extension: off */
 147                 stripit = true;
 148                 break;
 149             case 1:
 150                 /* show file extension: on */
 151                 break;
 152             case 2:
 153                 /* show file extension: only unknown types */
 154                 stripit = filetype_supported(attr);
 155                 break;
 156             case 3:
 157             default:
 158                 /* show file extension: only when viewing all */
 159                 stripit = (*(local_tc->dirfilter) != SHOW_ID3DB) &&
 160                           (*(local_tc->dirfilter) != SHOW_ALL);
 161                 break;
 162         }
 163     }
 164
 165     if(stripit)
 166     {
 167         return(strip_extension(buffer, buffer_len, name));
 168     }
 169     return(name);
 170 }
 171
 172 #ifdef HAVE_LCD_COLOR
 173 static int tree_get_filecolor(int selected_item, void * data)
 174 {
 175     if (*tc.dirfilter == SHOW_ID3DB)
 176         return -1;
 177     struct tree_context * local_tc=(struct tree_context *)data;
 178     struct entry* e = tree_get_entry_at(local_tc, selected_item);
 179     return filetype_get_color(e->name, e->attr);
 180 }
 181 #endif
 182
 183 static enum themable_icons tree_get_fileicon(int selected_item, void * data)
 184 {
 185     struct tree_context * local_tc=(struct tree_context *)data;
 186 #ifdef HAVE_TAGCACHE
 187     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 188     if (id3db) {
 189         return tagtree_get_icon(&tc);
 190     }
 191     else
 192 #endif
 193     {
 194         struct entry* e = tree_get_entry_at(local_tc, selected_item);
 195         return filetype_get_icon(e->attr);
 196     }
 197 }
 198
 199 static int tree_voice_cb(int selected_item, void * data)
 200 {
 201     struct tree_context * local_tc=(struct tree_context *)data;
 202     char *name;
 203     int attr=0;
 204 #ifdef HAVE_TAGCACHE
 205     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 206     char buf[AVERAGE_FILENAME_LENGTH*2];
 207
 208     if (id3db)
 209     {
 210         attr = tagtree_get_attr(local_tc);
 211         name = tagtree_get_entry_name(local_tc, selected_item, buf, sizeof(buf));
 212     }
 213     else
 214 #endif
 215     {
 216         struct entry* e = tree_get_entry_at(local_tc, selected_item);
 217         name = e->name;
 218         attr = e->attr;
 219     }
 220     bool is_dir = (attr & ATTR_DIRECTORY);
 221     bool did_clip = false;
 222     /* First the .talk clip case */
 223     if(is_dir)
 224     {
 225         if(global_settings.talk_dir_clip)
 226         {
 227             did_clip = true;
 228             if(ft_play_dirname(name) <0)
 229                 /* failed, not existing */
 230                 did_clip = false;
 231         }
 232     } else { /* it's a file */
 233         if (global_settings.talk_file_clip && (attr & FILE_ATTR_THUMBNAIL))
 234         {
 235             did_clip = true;
 236             ft_play_filename(local_tc->currdir, name);
 237         }
 238     }
 239     if(!did_clip)
 240     {
 241         /* say the number or spell if required or as a fallback */
 242         switch (is_dir ? global_settings.talk_dir : global_settings.talk_file)
 243         {
 244         case 1: /* as numbers */
 245             talk_id(is_dir ? VOICE_DIR : VOICE_FILE, false);
 246             talk_number(selected_item+1        - (is_dir ? 0 : local_tc->dirsindir),
 247                         true);
 248             if(global_settings.talk_filetype
 249                && !is_dir && *local_tc->dirfilter < NUM_FILTER_MODES)
 250                 say_filetype(attr);
 251             break;
 252         case 2: /* spelled */
 253             talk_shutup();
 254             if(global_settings.talk_filetype)
 255             {
 256                 if(is_dir)
 257                     talk_id(VOICE_DIR, true);
 258                 else if(*local_tc->dirfilter < NUM_FILTER_MODES)
 259                     say_filetype(attr);
 260             }
 261             talk_spell(name, true);
 262             break;
 263         }
 264     }
 265     return 0;
 266 }
 267
 268 bool check_rockboxdir(void)
 269 {
 270     if(!dir_exists(ROCKBOX_DIR))
 271     {   /* No need to localise this message.
 272            If .rockbox is missing, it wouldn't work anyway */
 273         FOR_NB_SCREENS(i)
 274             screens[i].clear_display();
 275         splash(HZ*2, "No .rockbox directory");
 276         FOR_NB_SCREENS(i)
 277             screens[i].clear_display();
 278         splash(HZ*2, "Installation incomplete");
 279         return false;
 280     }
 281     return true;
 282 }
 283
 284 /* do this really late in the init sequence */
 285 void tree_gui_init(void)
 286 {
 287     check_rockboxdir();
 288
 289     strcpy(tc.currdir, "/");
 290
 291 #ifdef HAVE_LCD_CHARCELLS
 292     FOR_NB_SCREENS(i)
 293         screens[i].double_height(false);
 294 #endif
 295 #ifdef HAVE_BUTTONBAR
 296     gui_buttonbar_init(&tree_buttonbar);
 297     /* since archos only have one screen, no need to create more than that */
 298     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 299 #endif
 300     gui_synclist_init(&tree_lists, &tree_get_filename, &tc, false, 1, NULL);
 301     gui_synclist_set_voice_callback(&tree_lists, tree_voice_cb);
 302     gui_synclist_set_icon_callback(&tree_lists,
 303                                     global_settings.show_icons?&tree_get_fileicon:NULL);
 304 #ifdef HAVE_LCD_COLOR
 305     gui_synclist_set_color_callback(&tree_lists, &tree_get_filecolor);
 306 #endif
 307 }
 308
 309
 310 struct tree_context* tree_get_context(void)
 311 {
 312     return &tc;
 313 }
 314
 315 /*
 316  * Returns the position of a given file in the current directory
 317  * returns -1 if not found
 318  */
 319 static int tree_get_file_position(char * filename)
 320 {
 321     int i;
 322     struct entry* e;
 323
 324     /* use lastfile to determine the selected item (default=0) */
 325     for (i=0; i < tc.filesindir; i++)
 326     {
 327         e = tree_get_entry_at(&tc, i);
 328         if (!strcasecmp(e->name, filename))
 329             return(i);
 330     }
 331     return(-1);/* no file can match, returns undefined */
 332 }
 333
 334 /*
 335  * Called when a new dir is loaded (for example when returning from other apps ...)
 336  * also completely redraws the tree
 337  */
 338 static int update_dir(void)
 339 {
 340     bool changed = false;
 341 #ifdef HAVE_TAGCACHE
 342     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 343     /* Checks for changes */
 344     if (id3db) {
 345         if (tc.currtable != lasttable ||
 346             tc.currextra != lastextra ||
 347             tc.firstpos  != lastfirstpos ||
 348             reload_dir)
 349         {
 350             if (tagtree_load(&tc) < 0)
 351                 return -1;
 352
 353             lasttable = tc.currtable;
 354             lastextra = tc.currextra;
 355             lastfirstpos = tc.firstpos;
 356             changed = true;
 357         }
 358     }
 359     else
 360 #endif
 361     {
 362         /* if the tc.currdir has been changed, reload it ...*/
 363         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir)
 364         {
 365             if (ft_load(&tc, NULL) < 0)
 366                 return -1;
 367             strcpy(lastdir, tc.currdir);
 368             changed = true;
 369         }
 370     }
 371     /* if selected item is undefined */
 372     if (tc.selected_item == -1)
 373     {
 374         /* use lastfile to determine the selected item */
 375         tc.selected_item = tree_get_file_position(lastfile);
 376
 377         /* If the file doesn't exists, select the first one (default) */
 378         if(tc.selected_item < 0)
 379             tc.selected_item = 0;
 380         changed = true;
 381     }
 382     if (changed)
 383     {
 384         if(
 385 #ifdef HAVE_TAGCACHE
 386         !id3db &&
 387 #endif
 388         tc.dirfull )
 389         {
 390             splash(HZ, ID2P(LANG_SHOWDIR_BUFFER_FULL));
 391         }
 392     }
 393 #ifdef HAVE_TAGCACHE
 394     if (id3db)
 395     {
 396 #ifdef HAVE_LCD_BITMAP
 397         if (global_settings.show_path_in_browser == SHOW_PATH_FULL
 398             || global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 399         {
 400             gui_synclist_set_title(&tree_lists, tagtree_get_title(&tc),
 401                 filetype_get_icon(ATTR_DIRECTORY));
 402         }
 403         else
 404         {
 405             /* Must clear the title as the list is reused */
 406             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 407         }
 408 #endif
 409     }
 410     else
 411 #endif
 412     {
 413 #ifdef HAVE_LCD_BITMAP
 414         if (tc.browse && tc.browse->title)
 415         {
 416             int icon = tc.browse->icon;
 417             if (icon == NOICON)
 418                 icon = filetype_get_icon(ATTR_DIRECTORY);
 419             gui_synclist_set_title(&tree_lists, tc.browse->title, icon);
 420         }
 421         else if (global_settings.show_path_in_browser == SHOW_PATH_FULL)
 422         {
 423             gui_synclist_set_title(&tree_lists, tc.currdir,
 424                 filetype_get_icon(ATTR_DIRECTORY));
 425         }
 426         else if (global_settings.show_path_in_browser == SHOW_PATH_CURRENT)
 427         {
 428             char *title = strrchr(tc.currdir, '/') + 1;
 429             if (*title == '\0')
 430             {
 431                 /* Display "Files" for the root dir */
 432                 gui_synclist_set_title(&tree_lists, str(LANG_DIR_BROWSER),
 433                     filetype_get_icon(ATTR_DIRECTORY));
 434             }
 435             else
 436                 gui_synclist_set_title(&tree_lists, title,
 437                     filetype_get_icon(ATTR_DIRECTORY));
 438         }
 439         else
 440         {
 441             /* Must clear the title as the list is reused */
 442             gui_synclist_set_title(&tree_lists, NULL, NOICON);
 443         }
 444 #endif
 445     }
 446
 447     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 448     gui_synclist_set_icon_callback(&tree_lists,
 449                                    global_settings.show_icons?tree_get_fileicon:NULL);
 450     if( tc.selected_item >= tc.filesindir)
 451         tc.selected_item=tc.filesindir-1;
 452
 453     gui_synclist_select_item(&tree_lists, tc.selected_item);
 454 #ifdef HAVE_BUTTONBAR
 455     if (global_settings.buttonbar) {
 456         if (*tc.dirfilter < NUM_FILTER_MODES)
 457             gui_buttonbar_set(&tree_buttonbar, str(LANG_SYSFONT_DIRBROWSE_F1),
 458                           str(LANG_SYSFONT_DIRBROWSE_F2),
 459                           str(LANG_SYSFONT_DIRBROWSE_F3));
 460         else
 461             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 462         gui_buttonbar_draw(&tree_buttonbar);
 463     }
 464 #endif
 465     gui_synclist_draw(&tree_lists);
 466     gui_synclist_speak_item(&tree_lists);
 467     return tc.filesindir;
 468 }
 469
 470 /* load tracks from specified directory to resume play */
 471 void resume_directory(const char *dir)
 472 {
 473     int dirfilter = *tc.dirfilter;
 474     int ret;
 475 #ifdef HAVE_TAGCACHE
 476     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 477 #endif
 478     /* make sure the dirfilter is sane. The only time it should be possible
 479      * thats its not is when resume playlist is called from a plugin
 480      */
 481 #ifdef HAVE_TAGCACHE
 482     if (!id3db)
 483 #endif
 484         *tc.dirfilter = global_settings.dirfilter;
 485     ret = ft_load(&tc, dir);
 486     *tc.dirfilter = dirfilter;
 487     if (ret < 0)
 488         return;
 489     lastdir[0] = 0;
 490
 491     ft_build_playlist(&tc, 0);
 492
 493 #ifdef HAVE_TAGCACHE
 494     if (id3db)
 495         tagtree_load(&tc);
 496 #endif
 497 }
 498
 499 /* Returns the current working directory and also writes cwd to buf if
 500    non-NULL.  In case of error, returns NULL. */
 501 char *getcwd(char *buf, getcwd_size_t size)
 502 {
 503     if (!buf)
 504         return tc.currdir;
 505     else if (size)
 506     {
 507         if ((getcwd_size_t)strlcpy(buf, tc.currdir, size) < size)
 508             return buf;
 509     }
 510     /* size == 0, or truncation in strlcpy */
 511     return NULL;
 512 }
 513
 514 /* Force a reload of the directory next time directory browser is called */
 515 void reload_directory(void)
 516 {
 517     reload_dir = true;
 518 }
 519
 520 char* get_current_file(char* buffer, size_t buffer_len)
 521 {
 522 #ifdef HAVE_TAGCACHE
 523     /* in ID3DB mode it is a bad idea to call this function */
 524     /* (only happens with `follow playlist') */
 525     if( *tc.dirfilter == SHOW_ID3DB )
 526         return NULL;
 527 #endif
 528
 529     struct entry* e = tree_get_entry_at(&tc, tc.selected_item);
 530     if (getcwd(buffer, buffer_len))
 531     {
 532         if (tc.dirlength)
 533         {
 534             if (buffer[strlen(buffer)-1] != '/')
 535                 strlcat(buffer, "/", buffer_len);
 536             if (strlcat(buffer, e->name, buffer_len) >= buffer_len)
 537                 return NULL;
 538         }
 539         return buffer;
 540     }
 541     return NULL;
 542 }
 543
 544 /* Allow apps to change our dirfilter directly (required for sub browsers)
 545    if they're suddenly going to become a file browser for example */
 546 void set_dirfilter(int l_dirfilter)
 547 {
 548     *tc.dirfilter = l_dirfilter;
 549 }
 550
 551 /* Selects a file and update tree context properly */
 552 void set_current_file(const char *path)
 553 {
 554     const char *name;
 555     int i;
 556
 557 #ifdef HAVE_TAGCACHE
 558     /* in ID3DB mode it is a bad idea to call this function */
 559     /* (only happens with `follow playlist') */
 560     if( *tc.dirfilter == SHOW_ID3DB )
 561         return;
 562 #endif
 563
 564     /* separate directory from filename */
 565     /* gets the directory's name and put it into tc.currdir */
 566     name = strrchr(path+1,'/');
 567     if (name)
 568     {
 569         strlcpy(tc.currdir, path, name - path + 1);
 570         name++;
 571     }
 572     else
 573     {
 574         strcpy(tc.currdir, "/");
 575         name = path+1;
 576     }
 577
 578     strcpy(lastfile, name);
 579
 580
 581     /* If we changed dir we must recalculate the dirlevel
 582        and adjust the selected history properly */
 583     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 584     {
 585         tc.dirlevel =  0;
 586         tc.selected_item_history[tc.dirlevel] = -1;
 587
 588         /* use '/' to calculate dirlevel */
 589         for (i = 1; path[i] != '\0'; i++)
 590         {
 591             if (path[i] == '/')
 592             {
 593                 tc.dirlevel++;
 594                 tc.selected_item_history[tc.dirlevel] = -1;
 595             }
 596         }
 597     }
 598     if (ft_load(&tc, NULL) >= 0)
 599     {
 600         tc.selected_item = tree_get_file_position(lastfile);
 601     }
 602 }
 603
 604
 605 /* main loop, handles key events */
 606 static int dirbrowse(void)
 607 {
 608     int numentries=0;
 609     char buf[MAX_PATH];
 610     int button;
 611 #ifdef HAVE_LCD_BITMAP
 612     int oldbutton;
 613 #endif
 614     bool reload_root = false;
 615     int lastfilter = *tc.dirfilter;
 616     bool lastsortcase = global_settings.sort_case;
 617     bool exit_func = false;
 618
 619     char* currdir = tc.currdir; /* just a shortcut */
 620 #ifdef HAVE_TAGCACHE
 621     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 622
 623     if (id3db)
 624         curr_context=CONTEXT_ID3DB;
 625     else
 626 #endif
 627         curr_context=CONTEXT_TREE;
 628     if (tc.selected_item < 0)
 629         tc.selected_item = 0;
 630 #ifdef HAVE_TAGCACHE
 631     tc.firstpos = 0;
 632     lasttable = -1;
 633     lastextra = -1;
 634     lastfirstpos = 0;
 635 #endif
 636
 637     start_wps = false;
 638     numentries = update_dir();
 639     reload_dir = false;
 640     if (numentries == -1)
 641         return GO_TO_PREVIOUS;  /* currdir is not a directory */
 642
 643     if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 644     {
 645         splash(HZ*2, ID2P(LANG_NO_FILES));
 646         return GO_TO_PREVIOUS;  /* No files found for rockbox_browse() */
 647     }
 648
 649     gui_synclist_draw(&tree_lists);
 650     while(1) {
 651         bool restore = false;
 652         if (tc.dirlevel < 0)
 653             tc.dirlevel = 0; /* shouldnt be needed.. this code needs work! */
 654
 655         button = get_action(CONTEXT_TREE,
 656                             list_do_action_timeout(&tree_lists, HZ/2));
 657 #ifdef HAVE_LCD_BITMAP
 658         oldbutton = button;
 659 #endif
 660         gui_synclist_do_button(&tree_lists, &button,LIST_WRAP_UNLESS_HELD);
 661         tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 662         switch ( button ) {
 663             case ACTION_STD_OK:
 664                 /* nothing to do if no files to display */
 665                 if ( numentries == 0 )
 666                     break;
 667
 668                 short attr = tree_get_entry_at(&tc, tc.selected_item)->attr;
 669                 if ((tc.browse->flags & BROWSE_SELECTONLY) &&
 670                     !(attr & ATTR_DIRECTORY))
 671                 {
 672                     tc.browse->flags |= BROWSE_SELECTED;
 673                     get_current_file(tc.browse->buf, tc.browse->bufsize);
 674                     return GO_TO_PREVIOUS;
 675                 }
 676
 677 #ifdef HAVE_TAGCACHE
 678                 switch (id3db?tagtree_enter(&tc):ft_enter(&tc))
 679 #else
 680                 switch (ft_enter(&tc))
 681 #endif
 682                 {
 683                     case GO_TO_FILEBROWSER: reload_dir = true; break;
 684                     case GO_TO_WPS:
 685                         return GO_TO_WPS;
 686 #if CONFIG_TUNER
 687                     case GO_TO_FM:
 688                         return GO_TO_FM;
 689 #endif
 690                     case GO_TO_ROOT: exit_func = true; break;
 691                     default: break;
 692                 }
 693                 restore = true;
 694                 break;
 695
 696             case ACTION_STD_CANCEL:
 697                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 698                     exit_func = true;
 699                     break;
 700                 }
 701                 if ((*tc.dirfilter == SHOW_ID3DB && tc.dirlevel == 0) ||
 702                     ((*tc.dirfilter != SHOW_ID3DB && !strcmp(currdir,"/"))))
 703                 {
 704 #ifdef HAVE_LCD_BITMAP /* charcell doesnt have ACTION_TREE_PGLEFT so this isnt needed */
 705                     if (oldbutton == ACTION_TREE_PGLEFT)
 706                         break;
 707                     else
 708 #endif
 709                         return GO_TO_ROOT;
 710                 }
 711
 712 #ifdef HAVE_TAGCACHE
 713                 if (id3db)
 714                     tagtree_exit(&tc);
 715                 else
 716 #endif
 717                     if (ft_exit(&tc) == 3)
 718                         exit_func = true;
 719
 720                 restore = true;
 721                 break;
 722
 723             case ACTION_TREE_STOP:
 724                 if (list_stop_handler())
 725                     restore = true;
 726                 break;
 727
 728             case ACTION_STD_MENU:
 729                 return GO_TO_ROOT;
 730                 break;
 731
 732 #ifdef HAVE_RECORDING
 733             case ACTION_STD_REC:
 734                 return GO_TO_RECSCREEN;
 735 #endif
 736
 737             case ACTION_TREE_WPS:
 738                 return GO_TO_PREVIOUS_MUSIC;
 739                 break;
 740 #ifdef HAVE_QUICKSCREEN
 741             case ACTION_STD_QUICKSCREEN:
 742                 /* don't enter f2 from plugin browser */
 743                 if (*tc.dirfilter < NUM_FILTER_MODES)
 744                 {
 745                     if (quick_screen_quick(button))
 746                         reload_dir = true;
 747                     restore = true;
 748                 }
 749                 break;
 750 #endif
 751 #ifdef BUTTON_F3
 752             case ACTION_F3:
 753                 /* don't enter f3 from plugin browser */
 754                 if (*tc.dirfilter < NUM_FILTER_MODES)
 755                 {
 756                     if (quick_screen_f3(ACTION_F3))
 757                         reload_dir = true;
 758                     restore = true;
 759                 }
 760                 break;
 761 #endif
 762
 763 #ifdef HAVE_HOTKEY
 764             case ACTION_TREE_HOTKEY:
 765                 if (!global_settings.hotkey_tree)
 766                     break;
 767                 /* fall through */
 768 #endif
 769             case ACTION_STD_CONTEXT:
 770             {
 771                 bool hotkey = button == ACTION_TREE_HOTKEY;
 772                 int onplay_result;
 773                 int attr = 0;
 774
 775                 if (tc.browse->flags & BROWSE_NO_CONTEXT_MENU)
 776                     break;
 777
 778                 if(!numentries)
 779                     onplay_result = onplay(NULL, 0, curr_context, hotkey);
 780                 else {
 781 #ifdef HAVE_TAGCACHE
 782                     if (id3db)
 783                     {
 784                         if (tagtree_get_attr(&tc) == FILE_ATTR_AUDIO)
 785                         {
 786                             attr = FILE_ATTR_AUDIO;
 787                             tagtree_get_filename(&tc, buf, sizeof(buf));
 788                         }
 789                         else
 790                             attr = ATTR_DIRECTORY;
 791                     }
 792                     else
 793 #endif
 794                     {
 795                         struct entry *entry = tree_get_entry_at(&tc, tc.selected_item);
 796                         attr = entry->attr;
 797
 798                         if (currdir[1]) /* Not in / */
 799                             snprintf(buf, sizeof buf, "%s/%s",
 800                                      currdir, entry->name);
 801                         else /* In / */
 802                             snprintf(buf, sizeof buf, "/%s", entry->name);
 803                     }
 804                     onplay_result = onplay(buf, attr, curr_context, hotkey);
 805                 }
 806                 switch (onplay_result)
 807                 {
 808                     case ONPLAY_MAINMENU:
 809                         return GO_TO_ROOT;
 810
 811                     case ONPLAY_OK:
 812                         restore = true;
 813                         break;
 814
 815                     case ONPLAY_RELOAD_DIR:
 816                         reload_dir = true;
 817                         break;
 818
 819                     case ONPLAY_START_PLAY:
 820                         return GO_TO_WPS;
 821                         break;
 822                 }
 823                 break;
 824             }
 825
 826 #ifdef HAVE_HOTSWAP
 827             case SYS_FS_CHANGED:
 828 #ifdef HAVE_TAGCACHE
 829                 if (!id3db)
 830 #endif
 831                     reload_dir = true;
 832                 /* The 'dir no longer valid' situation will be caught later
 833                  * by checking the showdir() result. */
 834                 break;
 835 #endif
 836
 837             default:
 838                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 839                 {
 840                     if(*tc.dirfilter > NUM_FILTER_MODES)
 841                         /* leave sub-browsers after usb, doing otherwise
 842                            might be confusing to the user */
 843                         exit_func = true;
 844                     else
 845                         reload_dir = true;
 846                 }
 847                 break;
 848         }
 849         if (start_wps)
 850             return GO_TO_WPS;
 851         if (button && !IS_SYSEVENT(button))
 852         {
 853             storage_spin();
 854         }
 855
 856
 857     check_rescan:
 858         /* do we need to rescan dir? */
 859         if (reload_dir || reload_root ||
 860             lastfilter != *tc.dirfilter ||
 861             lastsortcase != global_settings.sort_case)
 862         {
 863             if (reload_root) {
 864                 strcpy(currdir, "/");
 865                 tc.dirlevel = 0;
 866 #ifdef HAVE_TAGCACHE
 867                 tc.currtable = 0;
 868                 tc.currextra = 0;
 869                 lasttable = -1;
 870                 lastextra = -1;
 871 #endif
 872                 reload_root = false;
 873             }
 874
 875             if (!reload_dir)
 876             {
 877                 gui_synclist_select_item(&tree_lists, 0);
 878                 gui_synclist_draw(&tree_lists);
 879                 tc.selected_item = 0;
 880                 lastdir[0] = 0;
 881             }
 882
 883             lastfilter = *tc.dirfilter;
 884             lastsortcase = global_settings.sort_case;
 885             restore = true;
 886         }
 887
 888         if (exit_func)
 889             return GO_TO_PREVIOUS;
 890
 891         if (restore || reload_dir) {
 892             /* restore display */
 893             numentries = update_dir();
 894             reload_dir = false;
 895             if (currdir[1] && (numentries < 0))
 896             {   /* not in root and reload failed */
 897                 reload_root = true; /* try root */
 898                 goto check_rescan;
 899             }
 900         }
 901     }
 902     return true;
 903 }
 904
 905 bool create_playlist(void)
 906 {
 907     char filename[MAX_PATH];
 908
 909     if (tc.currdir[1])
 910         snprintf(filename, sizeof filename, "%s.m3u8", tc.currdir);
 911     else
 912         snprintf(filename, sizeof filename, "%s/all.m3u8",
 913                 catalog_get_directory());
 914
 915
 916     if (kbd_input(filename, MAX_PATH))
 917         return false;
 918     splashf(0, "%s %s", str(LANG_CREATING), filename);
 919
 920     trigger_cpu_boost();
 921     catalog_add_to_a_playlist(tc.currdir, ATTR_DIRECTORY, true, filename);
 922     cancel_cpu_boost();
 923
 924     return true;
 925 }
 926
 927 void browse_context_init(struct browse_context *browse,
 928                          int dirfilter, unsigned flags,
 929                          char *title, enum themable_icons icon,
 930                          const char *root, const char *selected)
 931 {
 932     browse->dirfilter = dirfilter;
 933     browse->flags = flags;
 934     browse->callback_show_item = NULL;
 935     browse->title = title;
 936     browse->icon = icon;
 937     browse->root = root;
 938     browse->selected = selected;
 939     browse->buf = NULL;
 940     browse->bufsize = 0;
 941 }
 942
 943 #define NUM_TC_BACKUP   3
 944 static struct tree_context backups[NUM_TC_BACKUP];
 945 /* do not make backup if it is not recursive call */
 946 static int backup_count = -1;
 947 int rockbox_browse(struct browse_context *browse)
 948 {
 949     static char current[MAX_PATH];
 950     int ret_val = 0;
 951     int dirfilter = browse->dirfilter;
 952
 953     if (backup_count >= NUM_TC_BACKUP)
 954         return GO_TO_PREVIOUS;
 955     if (backup_count >= 0)
 956         backups[backup_count] = tc;
 957     backup_count++;
 958
 959     tc.dirfilter = &dirfilter;
 960     tc.sort_dir = global_settings.sort_dir;
 961
 962     reload_dir = true;
 963     if (*tc.dirfilter >= NUM_FILTER_MODES)
 964     {
 965         int last_context;
 966
 967         tc.browse = browse;
 968         tc.selected_item = 0;
 969         tc.dirlevel = 0;
 970         strlcpy(tc.currdir, browse->root, sizeof(tc.currdir));
 971         start_wps = false;
 972         last_context = curr_context;
 973
 974         if (browse->selected)
 975         {
 976             snprintf(current, sizeof(current), "%s/%s",
 977                 browse->root, browse->selected);
 978             set_current_file(current);
 979             /* set_current_file changes dirlevel, change it back */
 980             tc.dirlevel = 0;
 981         }
 982
 983         ret_val = dirbrowse();
 984         curr_context = last_context;
 985     }
 986     else
 987     {
 988         if (dirfilter != SHOW_ID3DB)
 989             tc.dirfilter = &global_settings.dirfilter;
 990         tc.browse = browse;
 991         strcpy(current, browse->root);
 992         set_current_file(current);
 993         if (browse->flags&BROWSE_RUNFILE)
 994             ret_val = ft_enter(&tc);
 995         else
 996             ret_val = dirbrowse();
 997     }
 998     backup_count--;
 999     if (backup_count >= 0)
1000         tc = backups[backup_count];
1001     return ret_val;
1002 }
1003
1004 static int move_callback(int handle, void* current, void* new)
1005 {
1006     struct tree_cache* cache = &tc.cache;
1007     if (cache->lock_count > 0)
1008         return BUFLIB_CB_CANNOT_MOVE;
1009
1010     size_t diff = new - current;
1011     /* FIX_PTR makes sure to not accidentally update static allocations */
1012 #define FIX_PTR(x) \
1013     { if ((void*)x >= current && (void*)x < (current+cache->name_buffer_size)) x+= diff; }
1014
1015     if (handle == cache->name_buffer_handle)
1016     {   /* update entry structs, *even if they are struct tagentry */
1017         struct entry *this = core_get_data(cache->entries_handle);
1018         struct entry *last = this + cache->max_entries;
1019         for(; this < last; this++)
1020             FIX_PTR(this->name);
1021     }
1022     /* nothing to do if entries moved */
1023     return BUFLIB_CB_OK;
1024 }
1025
1026 static struct buflib_callbacks ops = {
1027     .move_callback = move_callback,
1028     .shrink_callback = NULL,
1029 };
1030
1031 void tree_mem_init(void)
1032 {
1033     /* initialize tree context struct */
1034     struct tree_cache* cache = &tc.cache;
1035     memset(&tc, 0, sizeof(tc));
1036     tc.dirfilter = &global_settings.dirfilter;
1037     tc.sort_dir = global_settings.sort_dir;
1038
1039     cache->name_buffer_size = AVERAGE_FILENAME_LENGTH *
1040         global_settings.max_files_in_dir;
1041     cache->name_buffer_handle = core_alloc_ex("tree names",
1042                                     cache->name_buffer_size,
1043                                     &ops);
1044
1045     cache->max_entries = global_settings.max_files_in_dir;
1046     cache->entries_handle = core_alloc_ex("tree entries",
1047                                     cache->max_entries*(sizeof(struct entry)),
1048                                     &ops);
1049     tree_get_filetypes(&filetypes, &filetypes_count);
1050 }
1051
1052 bool bookmark_play(char *resume_file, int index, int offset, int seed,
1053                    char *filename)
1054 {
1055     int i;
1056     char* suffix = strrchr(resume_file, '.');
1057     bool started = false;
1058
1059     if (suffix != NULL &&
1060         (!strcasecmp(suffix, ".m3u") || !strcasecmp(suffix, ".m3u8")))
1061     {
1062         /* Playlist playback */
1063         char* slash;
1064         /* check that the file exists */
1065         if(!file_exists(resume_file))
1066             return false;
1067
1068         slash = strrchr(resume_file,'/');
1069         if (slash)
1070         {
1071             char* cp;
1072             *slash=0;
1073
1074             cp=resume_file;
1075             if (!cp[0])
1076                 cp="/";
1077
1078             if (playlist_create(cp, slash+1) != -1)
1079             {
1080                 if (global_settings.playlist_shuffle)
1081                     playlist_shuffle(seed, -1);
1082                 playlist_start(index,offset);
1083                 started = true;
1084             }
1085             *slash='/';
1086         }
1087     }
1088     else
1089     {
1090         /* Directory playback */
1091         lastdir[0]='\0';
1092         if (playlist_create(resume_file, NULL) != -1)
1093         {
1094             char filename_buf[MAX_PATH + 1];
1095             const char* peek_filename;
1096             resume_directory(resume_file);
1097             if (global_settings.playlist_shuffle)
1098                 playlist_shuffle(seed, -1);
1099
1100             /* Check if the file is at the same spot in the directory,
1101                else search for it */
1102             peek_filename = playlist_peek(index, filename_buf,
1103                 sizeof(filename_buf));
1104
1105             if (peek_filename == NULL)
1106             {
1107                 /* playlist has shrunk, search from the top */
1108                 index = 0;
1109                 peek_filename = playlist_peek(index, filename_buf,
1110                     sizeof(filename_buf));
1111                 if (peek_filename == NULL)
1112                     return false;
1113             }
1114
1115             if (strcmp(strrchr(peek_filename, '/') + 1, filename))
1116             {
1117                 for ( i=0; i < playlist_amount(); i++ )
1118                 {
1119                     peek_filename = playlist_peek(i, filename_buf,
1120                         sizeof(filename_buf));
1121
1122                     if (peek_filename == NULL)
1123                         return false;
1124
1125                     if (!strcmp(strrchr(peek_filename, '/') + 1, filename))
1126                         break;
1127                 }
1128                 if (i < playlist_amount())
1129                     index = i;
1130                 else
1131                     return false;
1132             }
1133             playlist_start(index,offset);
1134             started = true;
1135         }
1136     }
1137
1138     if (started)
1139         start_wps = true;
1140     return started;
1141 }
1142
1143 static void say_filetype(int attr)
1144 {
1145     /* try to find a voice ID for the extension, if known */
1146     int j;
1147     attr &= FILE_ATTR_MASK; /* file type */
1148     for (j=0; j<filetypes_count; j++)
1149         if (attr == filetypes[j].tree_attr)
1150         {
1151             talk_id(filetypes[j].voiceclip, true);
1152             return;
1153         }
1154 }
1155
1156 static int ft_play_dirname(char* name)
1157 {
1158 #if CONFIG_CODEC != SWCODEC
1159     if (audio_status() & AUDIO_STATUS_PLAY)
1160         return 0;
1161 #endif
1162
1163     if(talk_file(tc.currdir, name, dir_thumbnail_name, NULL,
1164                  NULL, false))
1165     {
1166         if(global_settings.talk_filetype)
1167             talk_id(VOICE_DIR, true);
1168         return 1;
1169     }
1170     else
1171         return -1;
1172 }
1173
1174 static void ft_play_filename(char *dir, char *file)
1175 {
1176 #if CONFIG_CODEC != SWCODEC
1177     if (audio_status() & AUDIO_STATUS_PLAY)
1178         return;
1179 #endif
1180
1181     if (strlen(file) >= strlen(file_thumbnail_ext)
1182         && strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1183                       file_thumbnail_ext))
1184         /* file has no .talk extension */
1185         talk_file(dir, NULL, file, file_thumbnail_ext,
1186                   NULL, false);
1187     else
1188         /* it already is a .talk file, play this directly, but prefix it. */
1189         talk_file(dir, NULL, file, NULL,
1190                   TALK_IDARRAY(LANG_VOICE_DIR_HOVER), false);
1191 }
1192
1193 /* These two functions are called by the USB and shutdown handlers */
1194 void tree_flush(void)
1195 {
1196 #ifdef HAVE_TAGCACHE
1197     tagcache_shutdown();
1198 #endif
1199
1200 #ifdef HAVE_TC_RAMCACHE
1201     tagcache_unload_ramcache();
1202 #endif
1203
1204 #ifdef HAVE_DIRCACHE
1205     {
1206         int old_val = global_status.dircache_size;
1207         if (global_settings.dircache)
1208         {
1209             if (!dircache_is_initializing())
1210                 global_status.dircache_size = dircache_get_cache_size();
1211 # ifdef HAVE_EEPROM_SETTINGS
1212             if (firmware_settings.initialized)
1213                 dircache_save();
1214 # endif
1215             dircache_suspend();
1216         }
1217         else
1218         {
1219             global_status.dircache_size = 0;
1220         }
1221         if (old_val != global_status.dircache_size)
1222             status_save();
1223     }
1224 #endif
1225 }
1226
1227 void tree_restore(void)
1228 {
1229 #ifdef HAVE_EEPROM_SETTINGS
1230     firmware_settings.disk_clean = false;
1231 #endif
1232
1233 #ifdef HAVE_TC_RAMCACHE
1234     remove(TAGCACHE_STATEFILE);
1235 #endif
1236
1237 #ifdef HAVE_DIRCACHE
1238     remove(DIRCACHE_FILE);
1239     if (global_settings.dircache)
1240     {
1241         /* Print "Scanning disk..." to the display. */
1242         splash(0, str(LANG_SCANNING_DISK));
1243
1244         dircache_build(global_status.dircache_size);
1245     }
1246 #endif
1247 #ifdef HAVE_TAGCACHE
1248     tagcache_start_scan();
1249 #endif
1250 }