apps/plugins/properties.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Peter D'Hoye
  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 "plugin.h"
  22
  23 PLUGIN_HEADER
  24
  25 static const struct plugin_api* rb;
  26
  27 MEM_FUNCTION_WRAPPERS(rb);
  28
  29 bool its_a_dir = false;
  30
  31 char str_filename[MAX_PATH];
  32 char str_dirname[MAX_PATH];
  33 char str_size[64];
  34 char str_dircount[64];
  35 char str_filecount[64];
  36 char str_date[64];
  37 char str_time[64];
  38
  39 char str_title[MAX_PATH];
  40 char str_artist[MAX_PATH];
  41 char str_album[MAX_PATH];
  42
  43 int num_properties;
  44
  45 static char* filesize2string(long long size, char* pstr, int len)
  46 {
  47     /* margin set at 10K boundary: 10239 B +1 => 10 KB
  48        routine below is 200 bytes smaller than cascaded if/else :)
  49        not using build-in function because of huge values (long long) */
  50     const char* kgb[4] = { "B", "KB", "MB", "GB" };
  51     int i = 0;
  52     while(true)
  53     {
  54         if((size < 10240) || (i > 2))
  55         {
  56             /* depends on the order in the above array */
  57             rb->snprintf(pstr, len, "%ld %s", (long)size, kgb[i]);
  58             break;
  59         }
  60         size >>= 10; /* div by 1024 */
  61         i++;
  62     }
  63     return pstr;
  64 }
  65
  66 static bool file_properties(char* selected_file)
  67 {
  68     bool found = false;
  69     char tstr[MAX_PATH];
  70     DIR* dir;
  71     struct dirent* entry;
  72     struct mp3entry id3;
  73
  74     char* ptr = rb->strrchr(selected_file, '/') + 1;
  75     int dirlen = (ptr - selected_file);
  76     rb->strncpy(tstr, selected_file, dirlen);
  77     tstr[dirlen] = 0;
  78
  79     dir = rb->opendir(tstr);
  80     if (dir)
  81     {
  82         while(0 != (entry = rb->readdir(dir)))
  83         {
  84             if(!rb->strcmp(entry->d_name, selected_file+dirlen))
  85             {
  86                 rb->snprintf(str_dirname, sizeof str_dirname, "Path: %s",
  87                              tstr);
  88                 rb->snprintf(str_filename, sizeof str_filename, "Name: %s",
  89                              selected_file+dirlen);
  90                 rb->snprintf(str_size, sizeof str_size, "Size: %s",
  91                              filesize2string(entry->size, tstr, sizeof tstr));
  92                 rb->snprintf(str_date, sizeof str_date, "Date: %04d/%02d/%02d",
  93                     ((entry->wrtdate >> 9 ) & 0x7F) + 1980, /* year    */
  94                     ((entry->wrtdate >> 5 ) & 0x0F),        /* month   */
  95                     ((entry->wrtdate      ) & 0x1F));       /* day     */
  96                 rb->snprintf(str_time, sizeof str_time, "Time: %02d:%02d",
  97                     ((entry->wrttime >> 11) & 0x1F),        /* hour    */
  98                     ((entry->wrttime >> 5 ) & 0x3F));       /* minutes */
  99
 100                 num_properties = 5;
 101
 102 #if (CONFIG_CODEC == SWCODEC)
 103                 int fd = rb->open(selected_file, O_RDONLY);
 104                 if (fd >= 0 &&
 105                     rb->get_metadata(&id3, fd, selected_file))
 106 #else
 107                 if (!rb->mp3info(&id3, selected_file))
 108 #endif
 109                 {
 110                     rb->snprintf(str_artist, sizeof str_artist,
 111                                  "Artist: %s", id3.artist ? id3.artist : "");
 112                     rb->snprintf(str_title, sizeof str_title,
 113                                  "Title: %s", id3.title ? id3.title : "");
 114                     rb->snprintf(str_album, sizeof str_album,
 115                                  "Album: %s", id3.album ? id3.album : "");
 116                     num_properties += 3;
 117                 }
 118 #if (CONFIG_CODEC == SWCODEC)
 119                 rb->close(fd);
 120 #endif
 121                 found = true;
 122                 break;
 123             }
 124         }
 125         rb->closedir(dir);
 126     }
 127     return found;
 128 }
 129
 130 typedef struct {
 131     char dirname[MAX_PATH];
 132     int len;
 133     unsigned int dc;
 134     unsigned int fc;
 135     long long bc;
 136     char tstr[64];
 137     char tstr2[64];
 138 } DPS;
 139
 140 static bool _dir_properties(DPS* dps)
 141 {
 142     /* recursively scan directories in search of files
 143        and informs the user of the progress */
 144     bool result;
 145     int dirlen;
 146     DIR* dir;
 147     struct dirent* entry;
 148
 149     result = true;
 150     dirlen = rb->strlen(dps->dirname);
 151     dir = rb->opendir(dps->dirname);
 152     if (!dir)
 153         return false; /* open error */
 154
 155     /* walk through the directory content */
 156     while(result && (0 != (entry = rb->readdir(dir))))
 157     {
 158         /* append name to current directory */
 159         rb->snprintf(dps->dirname+dirlen, dps->len-dirlen, "/%s",
 160                      entry->d_name);
 161
 162         if (entry->attribute & ATTR_DIRECTORY)
 163         {
 164             if (!rb->strcmp((char *)entry->d_name, ".") ||
 165                 !rb->strcmp((char *)entry->d_name, ".."))
 166                 continue; /* skip these */
 167
 168             dps->dc++; /* new directory */
 169             rb->lcd_clear_display();
 170             rb->lcd_puts(0,0,"SCANNING...");
 171             rb->lcd_puts(0,1,dps->dirname);
 172             rb->lcd_puts(0,2,entry->d_name);
 173             rb->snprintf(dps->tstr, 64, "Directories: %d", dps->dc);
 174             rb->lcd_puts(0,3,dps->tstr);
 175             rb->snprintf(dps->tstr, 64, "Files: %d", dps->fc);
 176             rb->lcd_puts(0,4,dps->tstr);
 177             rb->snprintf(dps->tstr, 64, "Size: %s",
 178                 filesize2string(dps->bc, dps->tstr2, 64));
 179             rb->lcd_puts(0,5,dps->tstr);
 180             rb->lcd_update();
 181
 182              /* recursion */
 183             result = _dir_properties(dps);
 184         }
 185         else
 186         {
 187             dps->fc++; /* new file */
 188             dps->bc += entry->size;
 189         }
 190         if(ACTION_STD_CANCEL == rb->get_action(CONTEXT_STD,TIMEOUT_NOBLOCK))
 191             result = false;
 192         rb->yield();
 193     }
 194     rb->closedir(dir);
 195     return result;
 196 }
 197
 198 static bool dir_properties(char* selected_file)
 199 {
 200     DPS dps;
 201     char tstr[64];
 202     rb->strncpy(dps.dirname, selected_file, MAX_PATH);
 203     dps.len = MAX_PATH;
 204     dps.dc = 0;
 205     dps.fc = 0;
 206     dps.bc = 0;
 207     if(false == _dir_properties(&dps))
 208         return false;
 209
 210     rb->snprintf(str_dirname, MAX_PATH, selected_file);
 211     rb->snprintf(str_dircount, sizeof str_dircount, "Subdirs: %d", dps.dc);
 212     rb->snprintf(str_filecount, sizeof str_filecount, "Files: %d", dps.fc);
 213     rb->snprintf(str_size, sizeof str_size, "Size: %s",
 214                  filesize2string(dps.bc, tstr, sizeof tstr));
 215     num_properties = 4;
 216     return true;
 217 }
 218
 219 char * get_props(int selected_item, void* data, char *buffer, size_t buffer_len)
 220 {
 221     (void)data;
 222
 223     switch(selected_item)
 224     {
 225         case 0:
 226             rb->strncpy(buffer, str_dirname, buffer_len);
 227             break;
 228         case 1:
 229             rb->strncpy(buffer, its_a_dir ? str_dircount : str_filename,
 230                         buffer_len);
 231             break;
 232         case 2:
 233             rb->strncpy(buffer, its_a_dir ? str_filecount : str_size, buffer_len);
 234             break;
 235         case 3:
 236             rb->strncpy(buffer, its_a_dir ? str_size : str_date, buffer_len);
 237             break;
 238         case 4:
 239             rb->strncpy(buffer, its_a_dir ? "" : str_time, buffer_len);
 240             break;
 241         case 5:
 242             rb->strncpy(buffer, its_a_dir ? "" : str_artist, buffer_len);
 243             break;
 244         case 6:
 245             rb->strncpy(buffer, its_a_dir ? "" : str_title, buffer_len);
 246             break;
 247         case 7:
 248             rb->strncpy(buffer, its_a_dir ? "" : str_album, buffer_len);
 249             break;
 250         default:
 251             rb->strncpy(buffer, "ERROR", buffer_len);
 252             break;
 253     }
 254     return buffer;
 255 }
 256
 257 enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
 258 {
 259     rb = api;
 260     struct gui_synclist properties_lists;
 261     int button;
 262     bool prev_show_statusbar;
 263     bool quit = false;
 264     char file[MAX_PATH];
 265     rb->strcpy(file, (const char *) parameter);
 266
 267     /* determine if it's a file or a directory */
 268     bool found = false;
 269     DIR* dir;
 270     struct dirent* entry;
 271     char* ptr = rb->strrchr(file, '/') + 1;
 272     int dirlen = (ptr - file);
 273     rb->strncpy(str_dirname, file, dirlen);
 274     str_dirname[dirlen] = 0;
 275
 276     dir = rb->opendir(str_dirname);
 277     if (dir)
 278     {
 279         while(0 != (entry = rb->readdir(dir)))
 280         {
 281             if(!rb->strcmp(entry->d_name, file+dirlen))
 282             {
 283                 its_a_dir = entry->attribute & ATTR_DIRECTORY ? true : false;
 284                 found = true;
 285                 break;
 286             }
 287         }
 288         rb->closedir(dir);
 289     }
 290     /* now we know if it's a file or a dir or maybe something failed */
 291
 292     if(!found)
 293     {
 294         /* weird: we couldn't find the entry. This Should Never Happen (TM) */
 295         rb->splashf(0, "File/Dir not found: %s", file);
 296         rb->action_userabort(TIMEOUT_BLOCK);
 297         return PLUGIN_OK;
 298     }
 299
 300     /* get the info depending on its_a_dir */
 301     if(!(its_a_dir ? dir_properties(file) : file_properties(file)))
 302     {
 303         /* something went wrong (to do: tell user what it was (nesting,...) */
 304         rb->splash(0, "Failed to gather information");
 305         rb->action_userabort(TIMEOUT_BLOCK);
 306         return PLUGIN_OK;
 307     }
 308
 309     /* prepare the list for the user */
 310     prev_show_statusbar = rb->global_settings->statusbar;
 311     rb->global_settings->statusbar = false;
 312
 313     rb->gui_synclist_init(&properties_lists, &get_props, file, false, 1, NULL);
 314     rb->gui_synclist_set_title(&properties_lists, its_a_dir ?
 315                                                   "Directory properties" :
 316                                                   "File properties", NOICON);
 317     rb->gui_synclist_set_icon_callback(&properties_lists, NULL);
 318     rb->gui_synclist_set_nb_items(&properties_lists, num_properties);
 319     rb->gui_synclist_limit_scroll(&properties_lists, true);
 320     rb->gui_synclist_select_item(&properties_lists, 0);
 321     rb->gui_synclist_draw(&properties_lists);
 322
 323     while(!quit)
 324     {
 325         button = rb->get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
 326         if (rb->gui_synclist_do_button(&properties_lists,&button,LIST_WRAP_ON))
 327             continue;
 328         switch(button)
 329         {
 330             case ACTION_STD_CANCEL:
 331                 quit = true;
 332                 break;
 333             default:
 334                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 335                 {
 336                     rb->global_settings->statusbar = prev_show_statusbar;
 337                     return PLUGIN_USB_CONNECTED;
 338                 }
 339         }
 340     }
 341     rb->global_settings->statusbar = prev_show_statusbar;
 342
 343     return PLUGIN_OK;
 344 }