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  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include <stdio.h>
  20 #include <string.h>
  21 #include <stdlib.h>
  22 #include <stdbool.h>
  23
  24 #include "applimits.h"
  25 #include "dir.h"
  26 #include "file.h"
  27 #include "lcd.h"
  28 #include "font.h"
  29 #include "backlight.h"
  30 #include "button.h"
  31 #include "kernel.h"
  32 #include "usb.h"
  33 #include "tree.h"
  34 #include "main_menu.h"
  35 #include "sprintf.h"
  36 #include "audio.h"
  37 #include "playlist.h"
  38 #include "menu.h"
  39 #include "gwps.h"
  40 #include "settings.h"
  41 #include "status.h"
  42 #include "debug.h"
  43 #include "ata.h"
  44 #include "rolo.h"
  45 #include "icons.h"
  46 #include "lang.h"
  47 #include "language.h"
  48 #include "screens.h"
  49 #include "keyboard.h"
  50 #include "bookmark.h"
  51 #include "onplay.h"
  52 #include "buffer.h"
  53 #include "plugin.h"
  54 #include "power.h"
  55 #include "action.h"
  56 #include "talk.h"
  57 #include "filetypes.h"
  58 #include "misc.h"
  59 #include "filetree.h"
  60 #include "dbtree.h"
  61 #include "recorder/recording.h"
  62 #include "rtc.h"
  63 #include "dircache.h"
  64 #include "yesno.h"
  65
  66 /* gui api */
  67 #include "list.h"
  68 #include "statusbar.h"
  69 #include "splash.h"
  70 #include "buttonbar.h"
  71 #include "textarea.h"
  72
  73 #ifdef HAVE_LCD_BITMAP
  74 #include "widgets.h"
  75 #endif
  76
  77 /* a table for the know file types */
  78 const struct filetype filetypes[] = {
  79     { "mp3", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  80     { "mp2", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  81     { "mpa", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  82 #if CONFIG_CODEC == SWCODEC
  83     /* Temporary hack to allow playlist creation */
  84     { "mp1", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  85     { "ogg", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  86     { "wma", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  87     { "wav", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  88     { "flac",TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  89     { "ac3", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  90     { "a52", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  91     { "mpc", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  92     { "wv",  TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  93     { "m4a", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  94     { "mp4", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  95     { "shn", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  96     { "aif", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  97     { "aiff",TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
  98 #endif
  99     { "m3u", TREE_ATTR_M3U, Icon_Playlist, LANG_PLAYLIST },
 100     { "cfg", TREE_ATTR_CFG, Icon_Config, VOICE_EXT_CFG },
 101     { "wps", TREE_ATTR_WPS, Icon_Wps, VOICE_EXT_WPS },
 102 #ifdef HAVE_REMOTE_LCD
 103     { "rwps", TREE_ATTR_RWPS, Icon_Wps, VOICE_EXT_RWPS },
 104 #endif
 105 #ifdef HAVE_LCD_COLOR
 106     { "bmp", TREE_ATTR_BMP, Icon_Wps, VOICE_EXT_WPS },
 107 #endif
 108     { "lng", TREE_ATTR_LNG, Icon_Language, LANG_LANGUAGE },
 109     { "rock",TREE_ATTR_ROCK,Icon_Plugin, VOICE_EXT_ROCK },
 110 #ifdef HAVE_LCD_BITMAP
 111     { "fnt", TREE_ATTR_FONT,Icon_Font, VOICE_EXT_FONT },
 112 #endif
 113     { "bmark",TREE_ATTR_BMARK, Icon_Bookmark, VOICE_EXT_BMARK },
 114 #ifdef BOOTFILE_EXT
 115     { BOOTFILE_EXT, TREE_ATTR_MOD, Icon_Firmware, VOICE_EXT_AJZ },
 116 #endif /* #ifndef SIMULATOR */
 117 };
 118
 119 struct gui_synclist tree_lists;
 120
 121 /* I put it here because other files doesn't use it yet,
 122  * but should be elsewhere since it will be used mostly everywhere */
 123 #ifdef HAS_BUTTONBAR
 124 struct gui_buttonbar tree_buttonbar;
 125 #endif
 126 static struct tree_context tc;
 127
 128 bool boot_changed = false;
 129
 130 char lastfile[MAX_PATH];
 131 static char lastdir[MAX_PATH];
 132 static int lasttable, lastextra, lastfirstpos;
 133 static int max_files = 0;
 134
 135 static bool reload_dir = false;
 136
 137 static bool start_wps = false;
 138 static bool dirbrowse(void);
 139 static int curr_context = false;/* id3db or tree*/
 140
 141 /*
 142  * removes the extension of filename (if it doesn't start with a .)
 143  * puts the result in buffer
 144  */
 145 char * strip_extension(char * filename, char * buffer)
 146 {
 147     int dotpos;
 148     char * dot=strrchr(filename, '.');
 149     if(dot!=0 && filename[0]!='.')
 150     {
 151         dotpos = dot-filename;
 152         strncpy(buffer, filename, dotpos);
 153         buffer[dotpos]='\0';
 154         return(buffer);
 155     }
 156     else
 157         return(filename);
 158 }
 159 char * tree_get_filename(int selected_item, void * data, char *buffer)
 160 {
 161     struct tree_context * local_tc=(struct tree_context *)data;
 162     char *name;
 163     int attr=0;
 164     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 165
 166     if (id3db) {
 167         name = ((char**)local_tc->dircache)[selected_item * local_tc->dentry_size];
 168     }
 169     else {
 170         struct entry* dc = local_tc->dircache;
 171         struct entry* e = &dc[selected_item];
 172         name = e->name;
 173         attr = e->attr;
 174     }
 175     /* if any file filter is on, and if it's not a directory,
 176      * strip the extension */
 177
 178     if ( (*(local_tc->dirfilter) != SHOW_ID3DB) && !(attr & ATTR_DIRECTORY)
 179         && (*(local_tc->dirfilter) != SHOW_ALL) )
 180     {
 181         return(strip_extension(name, buffer));
 182     }
 183     return(name);
 184 }
 185
 186
 187 void tree_get_fileicon(int selected_item, void * data, ICON * icon)
 188 {
 189     struct tree_context * local_tc=(struct tree_context *)data;
 190     bool id3db = *(local_tc->dirfilter) == SHOW_ID3DB;
 191     if (id3db) {
 192         *icon = (ICON)db_get_icon(&tc);
 193     }
 194     else {
 195         struct entry* dc = local_tc->dircache;
 196         struct entry* e = &dc[selected_item];
 197         *icon = (ICON)filetype_get_icon(e->attr);
 198     }
 199 }
 200
 201 bool check_rockboxdir(void)
 202 {
 203     DIR *dir = opendir(ROCKBOX_DIR);
 204     if(!dir)
 205     {
 206         int i;
 207         FOR_NB_SCREENS(i)
 208             screens[i].clear_display();
 209         gui_syncsplash(HZ*2, true, str(LANG_NO_ROCKBOX_DIR));
 210         FOR_NB_SCREENS(i)
 211             screens[i].clear_display();
 212         gui_syncsplash(HZ*2, true, str(LANG_INSTALLATION_INCOMPLETE));
 213         return false;
 214     }
 215     closedir(dir);
 216     return true;
 217 }
 218
 219 void browse_root(void)
 220 {
 221     gui_sync_wps_screen_init();
 222
 223     filetype_init();
 224     check_rockboxdir();
 225
 226     strcpy(tc.currdir, "/");
 227
 228 #ifdef HAVE_LCD_CHARCELLS
 229     int i;
 230     FOR_NB_SCREENS(i)
 231         screens[i].double_height(false);
 232 #endif
 233 #ifdef HAS_BUTTONBAR
 234     gui_buttonbar_init(&tree_buttonbar);
 235     /* since archos only have one screen, no need to create more than that */
 236     gui_buttonbar_set_display(&tree_buttonbar, &(screens[SCREEN_MAIN]) );
 237 #endif
 238     gui_synclist_init(&tree_lists, &tree_get_filename, &tc);
 239     gui_synclist_set_icon_callback(&tree_lists,
 240                   global_settings.show_icons?&tree_get_fileicon:NULL);
 241 #ifndef SIMULATOR
 242     dirbrowse();
 243 #else
 244     if (!dirbrowse()) {
 245         DEBUGF("No filesystem found. Have you forgotten to create it?\n");
 246     }
 247 #endif
 248 }
 249
 250 void tree_get_filetypes(const struct filetype** types, int* count)
 251 {
 252     *types = filetypes;
 253     *count = sizeof(filetypes) / sizeof(*filetypes);
 254 }
 255
 256 struct tree_context* tree_get_context(void)
 257 {
 258     return &tc;
 259 }
 260
 261 /* talkbox hovering delay, to avoid immediate disk activity */
 262 #define HOVER_DELAY (HZ/2)
 263 /*
 264  * Returns the position of a given file in the current directory
 265  * returns -1 if not found
 266  */
 267 int tree_get_file_position(char * filename)
 268 {
 269     int i;
 270     /* use lastfile to determine the selected item (default=0) */
 271     for (i=0; i < tc.filesindir; i++)
 272     {
 273         struct entry* dc = tc.dircache;
 274         struct entry* e = &dc[i];
 275         if (!strcasecmp(e->name, filename))
 276             return(i);
 277     }
 278     return(-1);/* no file can match, returns undefined */
 279 }
 280
 281 /*
 282  * Called when a new dir is loaded (for example when returning from other apps ...)
 283  * also completely redraws the tree
 284  */
 285 static int update_dir(void)
 286 {
 287     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 288     bool changed = false;
 289     /* Checks for changes */
 290     if (id3db) {
 291         if (tc.currtable != lasttable ||
 292             tc.currextra != lastextra ||
 293             tc.firstpos  != lastfirstpos)
 294         {
 295             if (db_load(&tc) < 0)
 296                 return -1;
 297
 298             lasttable = tc.currtable;
 299             lastextra = tc.currextra;
 300             lastfirstpos = tc.firstpos;
 301             changed = true;
 302         }
 303     }
 304     else {
 305         /* if the tc.currdir has been changed, reload it ...*/
 306         if (strncmp(tc.currdir, lastdir, sizeof(lastdir)) || reload_dir) {
 307
 308             if (ft_load(&tc, NULL) < 0)
 309                 return -1;
 310             strcpy(lastdir, tc.currdir);
 311             changed = true;
 312         }
 313     }
 314     /* if selected item is undefined */
 315     if (tc.selected_item == -1)
 316     {
 317         /* use lastfile to determine the selected item */
 318         tc.selected_item = tree_get_file_position(lastfile);
 319
 320         /* If the file doesn't exists, select the first one (default) */
 321         if(tc.selected_item < 0)
 322             tc.selected_item = 0;
 323         changed = true;
 324     }
 325     if (changed)
 326     {
 327         if(!id3db && (tc.dirfull ||
 328                       tc.filesindir == global_settings.max_files_in_dir) )
 329         {
 330             /* dir full */
 331             int i;
 332             FOR_NB_SCREENS(i)
 333             {
 334                 gui_textarea_clear(&screens[i]);
 335 #ifdef HAVE_LCD_CHARCELLS
 336                 screens[i].double_height(false);
 337 #endif
 338                 screens[i].clear_display();
 339                 screens[i].puts(0,0,str(LANG_SHOWDIR_ERROR_BUFFER));
 340                 screens[i].puts(0,1,str(LANG_SHOWDIR_ERROR_FULL));
 341                 gui_textarea_update(&screens[i]);
 342             }
 343             sleep(HZ*2);
 344             FOR_NB_SCREENS(i)
 345                 gui_textarea_clear(&screens[i]);
 346         }
 347     }
 348     gui_synclist_set_nb_items(&tree_lists, tc.filesindir);
 349     gui_synclist_set_icon_callback(&tree_lists,
 350                   global_settings.show_icons?&tree_get_fileicon:NULL);
 351     if( tc.selected_item >= tc.filesindir)
 352         tc.selected_item=tc.filesindir-1;
 353
 354     gui_synclist_select_item(&tree_lists, tc.selected_item);
 355     gui_synclist_draw(&tree_lists);
 356     gui_syncstatusbar_draw(&statusbars, true);
 357 #ifdef HAS_BUTTONBAR
 358     if (global_settings.buttonbar) {
 359         if (*tc.dirfilter < NUM_FILTER_MODES)
 360             gui_buttonbar_set(&tree_buttonbar, str(LANG_DIRBROWSE_F1),
 361                           str(LANG_DIRBROWSE_F2),
 362                           str(LANG_DIRBROWSE_F3));
 363         else
 364             gui_buttonbar_set(&tree_buttonbar, "<<<", "", "");
 365         gui_buttonbar_draw(&tree_buttonbar);
 366     }
 367 #endif
 368     return tc.filesindir;
 369 }
 370
 371 /* load tracks from specified directory to resume play */
 372 void resume_directory(const char *dir)
 373 {
 374     if (ft_load(&tc, dir) < 0)
 375         return;
 376     lastdir[0] = 0;
 377
 378     ft_build_playlist(&tc, 0);
 379 }
 380
 381 /* Returns the current working directory and also writes cwd to buf if
 382    non-NULL.  In case of error, returns NULL. */
 383 char *getcwd(char *buf, int size)
 384 {
 385     if (!buf)
 386         return tc.currdir;
 387     else if (size > 0)
 388     {
 389         strncpy(buf, tc.currdir, size);
 390         return buf;
 391     }
 392     else
 393         return NULL;
 394 }
 395
 396 /* Force a reload of the directory next time directory browser is called */
 397 void reload_directory(void)
 398 {
 399     reload_dir = true;
 400 }
 401
 402 static void start_resume(bool just_powered_on)
 403 {
 404     bool do_resume = false;
 405     if ( global_settings.resume_index != -1 ) {
 406         DEBUGF("Resume index %X offset %X\n",
 407                global_settings.resume_index,
 408                global_settings.resume_offset);
 409
 410 #ifdef HAVE_ALARM_MOD
 411         if ( rtc_check_alarm_started(true) ) {
 412            rtc_enable_alarm(false);
 413            do_resume = true;
 414         }
 415 #endif
 416
 417         /* always resume? */
 418         if ( global_settings.resume || ! just_powered_on)
 419             do_resume = true;
 420
 421         if (! do_resume) return;
 422
 423         if (playlist_resume() != -1)
 424         {
 425             playlist_start(global_settings.resume_index,
 426                 global_settings.resume_offset);
 427
 428             start_wps = true;
 429         }
 430         else return;
 431     }
 432     else if (! just_powered_on) {
 433         gui_syncsplash(HZ*2, true, str(LANG_NOTHING_TO_RESUME));
 434     }
 435 }
 436
 437 /* Selects a file and update tree context properly */
 438 void set_current_file(char *path)
 439 {
 440     char *name;
 441     int i;
 442
 443     /* in ID3DB mode it is a bad idea to call this function */
 444     /* (only happens with `follow playlist') */
 445     if( *tc.dirfilter == SHOW_ID3DB )
 446         return;
 447
 448     /* separate directory from filename */
 449     /* gets the directory's name and put it into tc.currdir */
 450     name = strrchr(path+1,'/');
 451     if (name)
 452     {
 453         *name = 0;
 454         strcpy(tc.currdir, path);
 455         *name = '/';
 456         name++;
 457     }
 458     else
 459     {
 460         strcpy(tc.currdir, "/");
 461         name = path+1;
 462     }
 463
 464     strcpy(lastfile, name);
 465
 466     /* undefined item selected */
 467     tc.selected_item = -1;
 468
 469     /* If we changed dir we must recalculate the dirlevel
 470        and adjust the selected history properly */
 471     if (strncmp(tc.currdir,lastdir,sizeof(lastdir)))
 472     {
 473         tc.dirlevel =  0;
 474         tc.selected_item_history[tc.dirlevel] = -1;
 475
 476         /* use '/' to calculate dirlevel */
 477         /* FIXME : strlen(path) : crazy oO better to store it at
 478            the beginning */
 479         int path_len = strlen(path) + 1;
 480         for (i = 1; i < path_len; i++)
 481         {
 482             if (path[i] == '/')
 483             {
 484                 tc.dirlevel++;
 485                 tc.selected_item_history[tc.dirlevel] = -1;
 486             }
 487         }
 488     }
 489 }
 490
 491 static bool check_changed_id3mode(bool currmode)
 492 {
 493     if (currmode != (global_settings.dirfilter == SHOW_ID3DB)) {
 494         currmode = global_settings.dirfilter == SHOW_ID3DB;
 495         if (currmode) {
 496             curr_context=CONTEXT_ID3DB;
 497             db_load(&tc);
 498         }
 499         else
 500         {
 501             curr_context=CONTEXT_TREE;
 502             ft_load(&tc, NULL);
 503         }
 504     }
 505     return currmode;
 506 }
 507 /* main loop, handles key events */
 508 static bool dirbrowse(void)
 509 {
 510     int numentries=0;
 511     char buf[MAX_PATH];
 512     int lasti = -1;
 513     unsigned button;
 514     bool reload_root = false;
 515     int lastfilter = *tc.dirfilter;
 516     bool lastsortcase = global_settings.sort_case;
 517     bool need_update = true;
 518     bool exit_func = false;
 519     long thumbnail_time = -1; /* for delaying a thumbnail */
 520
 521     unsigned lastbutton = 0;
 522     char* currdir = tc.currdir; /* just a shortcut */
 523     bool id3db = *tc.dirfilter == SHOW_ID3DB;
 524
 525     if (id3db)
 526         curr_context=CONTEXT_ID3DB;
 527     else
 528         curr_context=CONTEXT_TREE;
 529     tc.selected_item = 0;
 530     tc.dirlevel=0;
 531     tc.firstpos=0;
 532     lasttable = -1;
 533     lastextra = -1;
 534     lastfirstpos = 0;
 535
 536     if (*tc.dirfilter < NUM_FILTER_MODES) {
 537 #ifdef HAVE_RECORDING
 538 #ifndef SIMULATOR
 539         if (global_settings.rec_startup) {
 540             /* We fake being in the menu structure by calling
 541                the appropriate parent when we drop out of each screen */
 542             recording_screen();
 543             rec_menu();
 544             main_menu();
 545         }
 546         else
 547 #endif
 548 #endif
 549         start_resume(true);
 550
 551     }
 552     /* If we don't need to show the wps, draw the dir */
 553     if (!start_wps) {
 554         numentries = update_dir();
 555         if (numentries == -1)
 556             return false;  /* currdir is not a directory */
 557
 558         if (*tc.dirfilter > NUM_FILTER_MODES && numentries==0)
 559         {
 560             gui_syncsplash(HZ*2, true, str(LANG_NO_FILES));
 561             return false;  /* No files found for rockbox_browser() */
 562         }
 563     }
 564
 565     while(1) {
 566         struct entry *dircache = tc.dircache;
 567         bool restore = false;
 568 #ifdef BOOTFILE
 569         if (boot_changed) {
 570             char *lines[]={str(LANG_BOOT_CHANGED), str(LANG_REBOOT_NOW)};
 571             struct text_message message={lines, 2};
 572             if(gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
 573                 rolo_load("/" BOOTFILE);
 574             restore = true;
 575             boot_changed = false;
 576         }
 577 #endif
 578         button = button_get_w_tmo(HZ/5);
 579         need_update = gui_synclist_do_button(&tree_lists, button);
 580
 581         switch ( button ) {
 582 #ifdef TREE_ENTER
 583             case TREE_ENTER:
 584             case TREE_ENTER | BUTTON_REPEAT:
 585 #endif
 586 #ifdef TREE_RC_RUN
 587             case TREE_RC_RUN:
 588 #endif
 589             case TREE_RUN:
 590 #ifdef TREE_RUN_PRE
 591                 if (((button == TREE_RUN)
 592 #ifdef TREE_RC_RUN_PRE
 593                     || (button == TREE_RC_RUN))
 594                         && ((lastbutton != TREE_RC_RUN_PRE)
 595 #endif
 596                     && (lastbutton != TREE_RUN_PRE)))
 597                     break;
 598 #endif
 599                 /* nothing to do if no files to display */
 600                 if ( numentries == 0 )
 601                     break;
 602
 603                 switch (id3db?db_enter(&tc):ft_enter(&tc))
 604                 {
 605                     case 1: reload_dir = true; break;
 606                     case 2: start_wps = true; break;
 607                     case 3: exit_func = true; break;
 608                     default: break;
 609                 }
 610                 restore = true;
 611                 break;
 612
 613             case TREE_EXIT:
 614             case TREE_EXIT | BUTTON_REPEAT:
 615 #ifdef TREE_RC_EXIT
 616             case TREE_RC_EXIT:
 617 #endif
 618                 if (*tc.dirfilter > NUM_FILTER_MODES && tc.dirlevel < 1) {
 619                     exit_func = true;
 620                     break;
 621                 }
 622                 /* if we are in /, nothing to do */
 623                 if (tc.dirlevel == 0)
 624                     break;
 625
 626                 if (id3db)
 627                     db_exit(&tc);
 628                 else
 629                     if (ft_exit(&tc) == 3)
 630                         exit_func = true;
 631
 632                 restore = true;
 633                 break;
 634
 635 #ifdef TREE_OFF
 636             case TREE_OFF:
 637                 if (*tc.dirfilter < NUM_FILTER_MODES)
 638                 {
 639                     /* Stop the music if it is playing */
 640                     if(audio_status())
 641                         audio_stop();
 642 #if defined(HAVE_CHARGING) && \
 643     (CONFIG_KEYPAD == RECORDER_PAD) && !defined(HAVE_SW_POWEROFF)
 644                     else {
 645                         if (!charger_inserted()) {
 646                             if(shutdown_screen())
 647                                 reload_dir = true;
 648                         } else {
 649                             charging_splash();
 650                         }
 651                         restore = true;
 652                     }
 653 #endif
 654                 }
 655                 break;
 656 #if defined(HAVE_CHARGING) && !defined(HAVE_POWEROFF_WHILE_CHARGING)
 657             case TREE_OFF | BUTTON_REPEAT:
 658                 if (charger_inserted()) {
 659                     charging_splash();
 660                     restore = true;
 661                 }
 662                 break;
 663 #endif
 664 #endif /* TREE_OFF */
 665             case TREE_MENU:
 666 #ifdef TREE_RC_MENU
 667             case TREE_RC_MENU:
 668 #endif
 669 #ifdef TREE_MENU_PRE
 670                 if (lastbutton != TREE_MENU_PRE
 671 #ifdef TREE_RC_MENU_PRE
 672                     && lastbutton != TREE_RC_MENU_PRE
 673 #endif
 674                     )
 675                     break;
 676 #endif
 677                 /* don't enter menu from plugin browser */
 678                 if (*tc.dirfilter < NUM_FILTER_MODES)
 679                 {
 680                     int i;
 681                     FOR_NB_SCREENS(i)
 682                         screens[i].stop_scroll();
 683                     if (main_menu())
 684                         reload_dir = true;
 685                     restore = true;
 686
 687                     id3db = check_changed_id3mode(id3db);
 688                 }
 689                 else /* use it as a quick exit instead */
 690                     exit_func = true;
 691                 break;
 692
 693             case TREE_WPS:
 694 #ifdef TREE_RC_WPS
 695             case TREE_RC_WPS:
 696 #endif
 697 #ifdef TREE_WPS_PRE
 698                 if ((lastbutton != TREE_WPS_PRE)
 699 #ifdef TREE_RC_WPS
 700                     && (lastbutton != TREE_RC_WPS_PRE)
 701 #endif
 702                     )
 703                     break;
 704 #endif
 705                 /* don't enter wps from plugin browser etc */
 706                 if (*tc.dirfilter < NUM_FILTER_MODES)
 707                 {
 708                     if (audio_status() & AUDIO_STATUS_PLAY)
 709                     {
 710                         start_wps=true;
 711                     }
 712                     else
 713                     {
 714                         start_resume(false);
 715                         restore = true;
 716                     }
 717                 }
 718                 break;
 719
 720 #ifdef TREE_QUICK
 721             case TREE_QUICK:
 722 #ifdef TREE_RC_QUICK
 723             case TREE_RC_QUICK:
 724 #endif
 725                 /* don't enter f2 from plugin browser */
 726                 if (*tc.dirfilter < NUM_FILTER_MODES)
 727                 {
 728                     if (quick_screen_quick(button))
 729                         reload_dir = true;
 730                     restore = true;
 731
 732                     id3db = check_changed_id3mode(id3db);
 733                     break;
 734                 }
 735
 736 #endif
 737
 738 #ifdef BUTTON_F3
 739             case BUTTON_F3:
 740                 /* don't enter f3 from plugin browser */
 741                 if (*tc.dirfilter < NUM_FILTER_MODES)
 742                 {
 743                     if (quick_screen_f3(button))
 744                         reload_dir = true;
 745                     restore = true;
 746                 }
 747                 break;
 748 #endif
 749
 750             case TREE_CONTEXT:
 751 #ifdef TREE_RC_CONTEXT
 752             case TREE_RC_CONTEXT:
 753 #endif
 754 #ifdef TREE_CONTEXT2
 755             case TREE_CONTEXT2:
 756 #endif
 757             {
 758                 int onplay_result;
 759                 int attr = 0;
 760
 761                 if(!numentries)
 762                     onplay_result = onplay(NULL, 0, curr_context);
 763                 else {
 764                     if (id3db)
 765                     {
 766                         switch (tc.currtable)
 767                         {
 768                             case allsongs:
 769                             case songs4album:
 770                             case songs4artist:
 771                             case searchsongs:
 772                                 attr=TREE_ATTR_MPA;
 773                                 db_get_filename(&tc, buf, sizeof(buf));
 774                                 break;
 775                         }
 776                     }
 777                     else
 778                     {
 779                         attr = dircache[tc.selected_item].attr;
 780
 781                         if (currdir[1]) /* Not in / */
 782                             snprintf(buf, sizeof buf, "%s/%s",
 783                                      currdir,
 784                                      dircache[tc.selected_item].name);
 785                         else /* In / */
 786                             snprintf(buf, sizeof buf, "/%s",
 787                                      dircache[tc.selected_item].name);
 788                     }
 789                     onplay_result = onplay(buf, attr, curr_context);
 790                 }
 791                 switch (onplay_result)
 792                 {
 793                     case ONPLAY_OK:
 794                         restore = true;
 795                         break;
 796
 797                     case ONPLAY_RELOAD_DIR:
 798                         reload_dir = true;
 799                         break;
 800
 801                     case ONPLAY_START_PLAY:
 802                         start_wps = true;
 803                         break;
 804                 }
 805                 break;
 806             }
 807
 808             case BUTTON_NONE:
 809                 if (thumbnail_time != -1 &&
 810                     TIME_AFTER(current_tick, thumbnail_time))
 811                 {   /* a delayed hovering thumbnail is due now */
 812                     int res;
 813                     if (dircache[lasti].attr & ATTR_DIRECTORY)
 814                     {
 815                         DEBUGF("Playing directory thumbnail: %s", currdir);
 816                         res = ft_play_dirname(lasti);
 817                         if (res < 0) /* failed, not existing */
 818                         {   /* say the number instead, as a fallback */
 819                             talk_id(VOICE_DIR, false);
 820                             talk_number(lasti+1, true);
 821                         }
 822                     }
 823                     else
 824                     {
 825                         DEBUGF("Playing file thumbnail: %s/%s%s\n",
 826                                currdir, dircache[lasti].name,
 827                                file_thumbnail_ext);
 828                         /* no fallback necessary, we knew in advance
 829                            that the file exists */
 830                         ft_play_filename(currdir, dircache[lasti].name);
 831                     }
 832                     thumbnail_time = -1; /* job done */
 833                 }
 834                 gui_syncstatusbar_draw(&statusbars, false);
 835                 break;
 836
 837 #ifdef HAVE_HOTSWAP
 838             case SYS_FS_CHANGED:
 839                 if (!id3db)
 840                     reload_dir = true;
 841                 /* The 'dir no longer valid' situation will be caught later
 842                  * by checking the showdir() result. */
 843                 break;
 844 #endif
 845
 846             default:
 847                 if (default_event_handler(button) == SYS_USB_CONNECTED)
 848                 {
 849                     if(*tc.dirfilter > NUM_FILTER_MODES)
 850                         /* leave sub-browsers after usb, doing otherwise
 851                            might be confusing to the user */
 852                         exit_func = true;
 853                     else
 854                         reload_dir = true;
 855                 }
 856                 break;
 857         }
 858
 859         if ( button )
 860         {
 861             ata_spin();
 862             lastbutton = button;
 863         }
 864
 865         if (start_wps && audio_status() )
 866         {
 867             int i;
 868 #ifdef HAVE_LCD_COLOR
 869             fb_data* old_backdrop;
 870 #endif
 871
 872             FOR_NB_SCREENS(i)
 873                 screens[i].stop_scroll();
 874 #ifdef HAVE_LCD_COLOR
 875             old_backdrop = lcd_get_backdrop();
 876 #endif
 877             if (gui_wps_show() == SYS_USB_CONNECTED)
 878                 reload_dir = true;
 879 #ifdef HAVE_LCD_COLOR
 880             lcd_set_backdrop(old_backdrop);
 881 #endif
 882 #ifdef HAVE_HOTSWAP
 883             else
 884                 if (!id3db) /* Try reload to catch 'no longer valid' case. */
 885                     reload_dir = true;
 886 #endif
 887             id3db = check_changed_id3mode(id3db);
 888             restore = true;
 889             start_wps=false;
 890         }
 891
 892     check_rescan:
 893         /* do we need to rescan dir? */
 894         if (reload_dir || reload_root ||
 895             lastfilter != *tc.dirfilter ||
 896             lastsortcase != global_settings.sort_case)
 897         {
 898             if ( reload_root ) {
 899                 strcpy(currdir, "/");
 900                 tc.dirlevel = 0;
 901                 tc.currtable = 0;
 902                 tc.currextra = 0;
 903                 lasttable = -1;
 904                 lastextra = -1;
 905                 reload_root = false;
 906             }
 907             if (! reload_dir )
 908             {
 909                 gui_synclist_select_item(&tree_lists, 0);
 910                 gui_synclist_draw(&tree_lists);
 911                 tc.selected_item = 0;
 912                 lastdir[0] = 0;
 913             }
 914
 915             lastfilter = *tc.dirfilter;
 916             lastsortcase = global_settings.sort_case;
 917             restore = true;
 918             button_clear_queue(); /* clear button queue */
 919         }
 920
 921         if (exit_func)
 922             break;
 923
 924         if (restore || reload_dir) {
 925             /* restore display */
 926             numentries = update_dir();
 927             if (currdir[1] && (numentries < 0))
 928             {   /* not in root and reload failed */
 929                 reload_root = true; /* try root */
 930                 reload_dir = false;
 931                 goto check_rescan;
 932             }
 933             need_update = true;
 934             reload_dir = false;
 935         }
 936         if(need_update) {
 937             tc.selected_item = gui_synclist_get_sel_pos(&tree_lists);
 938             need_update=false;
 939             if ( numentries > 0 ) {
 940                 /* Voice the file if changed */
 941                 if(lasti != tc.selected_item || restore) {
 942                     lasti = tc.selected_item;
 943                     thumbnail_time = -1; /* Cancel whatever we were
 944                                             about to say */
 945
 946                     /* Directory? */
 947                     if (dircache[tc.selected_item].attr & ATTR_DIRECTORY)
 948                     {
 949                         /* play directory thumbnail */
 950                         switch (global_settings.talk_dir) {
 951                             case 1: /* dirs as numbers */
 952                                 talk_id(VOICE_DIR, false);
 953                                 talk_number(tc.selected_item+1, true);
 954                                 break;
 955
 956                             case 2: /* dirs spelled */
 957                                 talk_spell(dircache[tc.selected_item].name,
 958                                            false);
 959                                 break;
 960
 961                             case 3: /* thumbnail clip */
 962                                 /* "schedule" a thumbnail, to have a little
 963                                    delay */
 964                                 thumbnail_time = current_tick + HOVER_DELAY;
 965                                 break;
 966
 967                             default:
 968                                 break;
 969                         }
 970                     }
 971                     else /* file */
 972                     {
 973                         switch (global_settings.talk_file) {
 974                             case 1: /* files as numbers */
 975                                 ft_play_filenumber(
 976                                     tc.selected_item-tc.dirsindir+1,
 977                                     dircache[tc.selected_item].attr &
 978                                     TREE_ATTR_MASK);
 979                                 break;
 980
 981                             case 2: /* files spelled */
 982                                 talk_spell(dircache[tc.selected_item].name,
 983                                            false);
 984                                 break;
 985
 986                             case 3: /* thumbnail clip */
 987                                 /* "schedule" a thumbnail, to have a little
 988                                    delay */
 989                                 if (dircache[tc.selected_item].attr &
 990                                     TREE_ATTR_THUMBNAIL)
 991                                     thumbnail_time = current_tick + HOVER_DELAY;
 992                                 else
 993                                     /* spell the number as fallback */
 994                                     talk_spell(dircache[tc.selected_item].name,
 995                                                false);
 996                                 break;
 997
 998                             default:
 999                                 break;
1000                         }
1001                     }
1002                 }
1003             }
1004         }
1005     }
1006
1007     return true;
1008 }
1009
1010 static int plsize = 0;
1011 static long pltick;
1012 static bool add_dir(char* dirname, int len, int fd)
1013 {
1014     bool abort = false;
1015     DIRCACHED* dir;
1016
1017     /* check for user abort */
1018     if (button_get(false) == TREE_ABORT)
1019         return true;
1020
1021     dir = opendir_cached(dirname);
1022     if(!dir)
1023         return true;
1024
1025     while (true) {
1026         struct dircache_entry *entry;
1027
1028         entry = readdir_cached(dir);
1029         if (!entry)
1030             break;
1031         if (entry->attribute & ATTR_DIRECTORY) {
1032             int dirlen = strlen(dirname);
1033             bool result;
1034
1035             if (!strcmp((char *)entry->d_name, ".") ||
1036                 !strcmp((char *)entry->d_name, ".."))
1037                 continue;
1038
1039             if (dirname[1])
1040                 snprintf(dirname+dirlen, len-dirlen, "/%s", entry->d_name);
1041             else
1042                 snprintf(dirname, len, "/%s", entry->d_name);
1043
1044             result = add_dir(dirname, len, fd);
1045             dirname[dirlen] = '\0';
1046             if (result) {
1047                 abort = true;
1048                 break;
1049             }
1050         }
1051         else {
1052             int x = strlen((char *)entry->d_name);
1053             unsigned int i;
1054             char *cp = strrchr((char *)entry->d_name,'.');
1055
1056             if (cp) {
1057                 cp++;
1058
1059                 /* add all supported audio files to playlists */
1060                 for (i=0; i < sizeof(filetypes)/sizeof(struct filetype); i++) {
1061                     if (filetypes[i].tree_attr == TREE_ATTR_MPA) {
1062                         if (!strcasecmp(cp, filetypes[i].extension)) {
1063                             char buf[8];
1064                             int i;
1065                             write(fd, dirname, strlen(dirname));
1066                             write(fd, "/", 1);
1067                             write(fd, entry->d_name, x);
1068                             write(fd, "\n", 1);
1069
1070                             plsize++;
1071                             if(TIME_AFTER(current_tick, pltick+HZ/4)) {
1072                                 pltick = current_tick;
1073
1074                                 snprintf(buf, sizeof buf, "%d", plsize);
1075 #ifdef HAVE_LCD_BITMAP
1076                                 FOR_NB_SCREENS(i)
1077                                 {
1078                                     screens[i].puts(0, 4, (unsigned char *)buf);
1079                                     gui_textarea_update(&screens[i]);
1080                                 }
1081 #else
1082                                 x = 10;
1083                                 if (plsize > 999)
1084                                     x=7;
1085                                 else {
1086                                     if (plsize > 99)
1087                                         x=8;
1088                                     else {
1089                                         if (plsize > 9)
1090                                             x=9;
1091                                     }
1092                                 }
1093                                 FOR_NB_SCREENS(i) {
1094                                     screens[i].puts(x,0,buf);
1095                                 }
1096 #endif
1097                             }
1098                             break;
1099                         }
1100                     }
1101                 }
1102             }
1103         }
1104     }
1105     closedir_cached(dir);
1106
1107     return abort;
1108 }
1109
1110 bool create_playlist(void)
1111 {
1112     int fd;
1113     int i;
1114     char filename[MAX_PATH];
1115
1116     pltick = current_tick;
1117
1118     snprintf(filename, sizeof filename, "%s.m3u",
1119              tc.currdir[1] ? tc.currdir : "/root");
1120     FOR_NB_SCREENS(i)
1121     {
1122         gui_textarea_clear(&screens[i]);
1123         screens[i].puts(0, 0, str(LANG_CREATING));
1124         screens[i].puts_scroll(0, 1, (unsigned char *)filename);
1125 #if defined(HAVE_LCD_BITMAP) || defined(SIMULATOR)
1126         gui_textarea_update(&screens[i]);
1127 #endif
1128     }
1129     fd = creat(filename,0);
1130     if (fd < 0)
1131         return false;
1132
1133 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
1134     cpu_boost(true);
1135 #endif
1136
1137     snprintf(filename, sizeof(filename), "%s",
1138              tc.currdir[1] ? tc.currdir : "/");
1139     plsize = 0;
1140     add_dir(filename, sizeof(filename), fd);
1141     close(fd);
1142
1143 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
1144     cpu_boost(false);
1145 #endif
1146
1147     sleep(HZ);
1148
1149     return true;
1150 }
1151
1152 bool rockbox_browse(const char *root, int dirfilter)
1153 {
1154     static struct tree_context backup;
1155
1156     backup = tc;
1157     reload_dir = true;
1158     memcpy(tc.currdir, root, sizeof(tc.currdir));
1159     start_wps = false;
1160     tc.dirfilter = &dirfilter;
1161
1162     dirbrowse();
1163
1164     tc = backup;
1165     return false;
1166 }
1167
1168 void tree_init(void)
1169 {
1170     /* We copy the settings value in case it is changed by the user. We can't
1171        use it until the next reboot. */
1172     max_files = global_settings.max_files_in_dir;
1173
1174     /* initialize tree context struct */
1175     memset(&tc, 0, sizeof(tc));
1176     tc.dirfilter = &global_settings.dirfilter;
1177
1178     tagdb_init();
1179
1180     tc.name_buffer_size = AVERAGE_FILENAME_LENGTH * max_files;
1181     tc.name_buffer = buffer_alloc(tc.name_buffer_size);
1182
1183     tc.dircache_size = max_files * sizeof(struct entry);
1184     tc.dircache = buffer_alloc(tc.dircache_size);
1185 }
1186
1187 void bookmark_play(char *resume_file, int index, int offset, int seed,
1188                    char *filename)
1189 {
1190     int i;
1191     int len=strlen(resume_file);
1192
1193     if (!strcasecmp(&resume_file[len-4], ".m3u"))
1194     {
1195         /* Playlist playback */
1196         char* slash;
1197         /* check that the file exists */
1198         int fd = open(resume_file, O_RDONLY);
1199         if(fd<0)
1200             return;
1201         close(fd);
1202
1203         slash = strrchr(resume_file,'/');
1204         if (slash)
1205         {
1206             char* cp;
1207             *slash=0;
1208
1209             cp=resume_file;
1210             if (!cp[0])
1211                 cp="/";
1212
1213             if (playlist_create(cp, slash+1) != -1)
1214             {
1215                 if (global_settings.playlist_shuffle)
1216                     playlist_shuffle(seed, -1);
1217                 playlist_start(index,offset);
1218             }
1219             *slash='/';
1220         }
1221     }
1222     else
1223     {
1224         /* Directory playback */
1225         lastdir[0]='\0';
1226         if (playlist_create(resume_file, NULL) != -1)
1227         {
1228             resume_directory(resume_file);
1229             if (global_settings.playlist_shuffle)
1230                 playlist_shuffle(seed, -1);
1231
1232             /* Check if the file is at the same spot in the directory,
1233                else search for it */
1234             if ((strcmp(strrchr(playlist_peek(index) + 1,'/') + 1,
1235                         filename)))
1236             {
1237                 for ( i=0; i < playlist_amount(); i++ )
1238                 {
1239                     if ((strcmp(strrchr(playlist_peek(i) + 1,'/') + 1,
1240                                 filename)) == 0)
1241                         break;
1242                 }
1243                 if (i < playlist_amount())
1244                     index = i;
1245                 else
1246                     return;
1247             }
1248             playlist_start(index,offset);
1249         }
1250     }
1251
1252     start_wps=true;
1253 }
1254
1255 int ft_play_filenumber(int pos, int attr)
1256 {
1257     /* try to find a voice ID for the extension, if known */
1258     unsigned int j;
1259     int ext_id = -1; /* default to none */
1260     for (j=0; j<sizeof(filetypes)/sizeof(*filetypes); j++)
1261     {
1262         if (attr == filetypes[j].tree_attr)
1263         {
1264             ext_id = filetypes[j].voiceclip;
1265             break;
1266         }
1267     }
1268
1269     talk_id(VOICE_FILE, false);
1270     talk_number(pos, true);
1271     talk_id(ext_id, true);
1272     return 1;
1273 }
1274
1275 int ft_play_dirname(int start_index)
1276 {
1277     int fd;
1278     char dirname_mp3_filename[MAX_PATH+1];
1279     struct entry *dircache = tc.dircache;
1280
1281     if (audio_status() & AUDIO_STATUS_PLAY)
1282         return 0;
1283
1284     snprintf(dirname_mp3_filename, sizeof(dirname_mp3_filename), "%s/%s/%s",
1285              tc.currdir[1] ? tc.currdir : "" , dircache[start_index].name,
1286              dir_thumbnail_name);
1287
1288     DEBUGF("Checking for %s\n", dirname_mp3_filename);
1289
1290     fd = open(dirname_mp3_filename, O_RDONLY);
1291     if (fd < 0)
1292     {
1293         DEBUGF("Failed to find: %s\n", dirname_mp3_filename);
1294         return -1;
1295     }
1296
1297     close(fd);
1298
1299     DEBUGF("Found: %s\n", dirname_mp3_filename);
1300
1301     talk_file(dirname_mp3_filename, false);
1302     return 1;
1303 }
1304
1305 void ft_play_filename(char *dir, char *file)
1306 {
1307     char name_mp3_filename[MAX_PATH+1];
1308
1309     if (audio_status() & AUDIO_STATUS_PLAY)
1310         return;
1311
1312     if (strcasecmp(&file[strlen(file) - strlen(file_thumbnail_ext)],
1313                     file_thumbnail_ext))
1314     {   /* file has no .talk extension */
1315         snprintf(name_mp3_filename, sizeof(name_mp3_filename),
1316                  "%s/%s%s", dir, file, file_thumbnail_ext);
1317
1318         talk_file(name_mp3_filename, false);
1319     }
1320     else
1321     {   /* it already is a .talk file, play this directly */
1322         snprintf(name_mp3_filename, sizeof(name_mp3_filename),
1323             "%s/%s", dir, file);
1324         talk_id(LANG_VOICE_DIR_HOVER, false); /* prefix it */
1325         talk_file(name_mp3_filename, true);
1326     }
1327 }
1328
1329 /* These two functions are called by the USB and shutdown handlers */
1330 void tree_flush(void)
1331 {
1332     rundb_shutdown();
1333     tagdb_shutdown();
1334     playlist_shutdown();
1335 #ifdef HAVE_DIRCACHE
1336     if (global_settings.dircache)
1337     {
1338         if (dircache_is_enabled())
1339             global_settings.dircache_size = dircache_get_cache_size();
1340         dircache_disable();
1341     }
1342     else
1343     {
1344         global_settings.dircache_size = 0;
1345     }
1346     settings_save();
1347 #endif
1348 }
1349
1350 void tree_restore(void)
1351 {
1352     tagdb_init();
1353     rundb_init();
1354 #ifdef HAVE_DIRCACHE
1355     if (global_settings.dircache)
1356     {
1357         /* Print "Scanning disk..." to the display. */
1358         int i;
1359         FOR_NB_SCREENS(i)
1360         {
1361             screens[i].putsxy((LCD_WIDTH/2) -
1362                               ((strlen(str(LANG_DIRCACHE_BUILDING)) *
1363                                 screens[i].char_width)/2),
1364                               LCD_HEIGHT-screens[i].char_height*3,
1365                               str(LANG_DIRCACHE_BUILDING));
1366             gui_textarea_update(&screens[i]);
1367         }
1368
1369         dircache_build(global_settings.dircache_size);
1370
1371         /* Clean the text when we are done. */
1372         FOR_NB_SCREENS(i)
1373         {
1374             gui_textarea_clear(&screens[i]);
1375         }
1376     }
1377 #endif
1378 }