src/screen_file.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "config.h"
  20 #include "i18n.h"
  21 #include "options.h"
  22 #include "charset.h"
  23 #include "mpdclient.h"
  24 #include "command.h"
  25 #include "screen.h"
  26 #include "screen_utils.h"
  27 #include "screen_browser.h"
  28 #include "screen_play.h"
  29
  30 #include <ctype.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <glib.h>
  34
  35 static struct screen_browser browser;
  36
  37 static void
  38 browse_paint(void);
  39
  40 static void
  41 file_repaint(void)
  42 {
  43         browse_paint();
  44         wrefresh(browser.lw->w);
  45 }
  46
  47 static void
  48 file_repaint_if_active(void)
  49 {
  50         if (screen_is_visible(&screen_browse))
  51                 file_repaint();
  52 }
  53
  54 /* the db have changed -> update the filelist */
  55 static void
  56 file_changed_callback(mpdclient_t *c, G_GNUC_UNUSED int event,
  57                       G_GNUC_UNUSED gpointer data)
  58 {
  59         browser.filelist = mpdclient_filelist_update(c, browser.filelist);
  60 #ifndef NCMPC_MINI
  61         sync_highlights(c, browser.filelist);
  62 #endif
  63         list_window_check_selected(browser.lw, filelist_length(browser.filelist));
  64
  65         file_repaint_if_active();
  66 }
  67
  68 #ifndef NCMPC_MINI
  69 /* the playlist have been updated -> fix highlights */
  70 static void
  71 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
  72 {
  73         browser_playlist_changed(&browser, c, event, data);
  74
  75         file_repaint_if_active();
  76 }
  77 #endif
  78
  79 static int
  80 handle_save(mpdclient_t *c)
  81 {
  82         filelist_entry_t *entry;
  83         char *defaultname = NULL;
  84         int ret;
  85
  86         if (browser.lw->selected >= filelist_length(browser.filelist))
  87                 return -1;
  88
  89         entry = filelist_get(browser.filelist, browser.lw->selected);
  90         if( entry && entry->entity ) {
  91                 mpd_InfoEntity *entity = entry->entity;
  92                 if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
  93                         mpd_PlaylistFile *plf = entity->info.playlistFile;
  94                         defaultname = plf->path;
  95                 }
  96         }
  97
  98         defaultname = utf8_to_locale(defaultname);
  99         ret = playlist_save(c, NULL, defaultname);
 100         g_free(defaultname);
 101
 102         return ret;
 103 }
 104
 105 static int
 106 handle_delete(mpdclient_t *c)
 107 {
 108         filelist_entry_t *entry;
 109         mpd_InfoEntity *entity;
 110         mpd_PlaylistFile *plf;
 111         char *str, *buf;
 112         int key;
 113
 114         if (browser.lw->selected >= filelist_length(browser.filelist))
 115                 return -1;
 116
 117         entry = filelist_get(browser.filelist, browser.lw->selected);
 118         if( entry==NULL || entry->entity==NULL )
 119                 return -1;
 120
 121         entity = entry->entity;
 122
 123         if( entity->type!=MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 124                 /* translators: the "delete" command is only possible
 125                    for playlists; the user attempted to delete a song
 126                    or a directory or something else */
 127                 screen_status_printf(_("Deleting this item is not possible"));
 128                 screen_bell();
 129                 return -1;
 130         }
 131
 132         plf = entity->info.playlistFile;
 133         str = utf8_to_locale(g_basename(plf->path));
 134         buf = g_strdup_printf(_("Delete playlist %s [%s/%s] ? "), str, YES, NO);
 135         g_free(str);
 136         key = tolower(screen_getch(screen.status_window.w, buf));
 137         g_free(buf);
 138         if( key != YES[0] ) {
 139                 /* translators: a dialog was aborted by the user */
 140                 screen_status_printf(_("Aborted"));
 141                 return 0;
 142         }
 143
 144         if( mpdclient_cmd_delete_playlist(c, plf->path) )
 145                 return -1;
 146
 147         /* translators: MPD deleted the playlist, as requested by the
 148            user */
 149         screen_status_printf(_("Playlist deleted"));
 150         return 0;
 151 }
 152
 153 static void
 154 browse_init(WINDOW *w, int cols, int rows)
 155 {
 156         browser.lw = list_window_init(w, cols, rows);
 157 }
 158
 159 static void
 160 browse_resize(int cols, int rows)
 161 {
 162         browser.lw->cols = cols;
 163         browser.lw->rows = rows;
 164 }
 165
 166 static void
 167 browse_exit(void)
 168 {
 169         if (browser.filelist)
 170                 filelist_free(browser.filelist);
 171         list_window_free(browser.lw);
 172 }
 173
 174 static void
 175 browse_open(G_GNUC_UNUSED mpdclient_t *c)
 176 {
 177         if (browser.filelist == NULL) {
 178                 browser.filelist = mpdclient_filelist_get(c, "");
 179 #ifndef NCMPC_MINI
 180                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 181 #endif
 182                 mpdclient_install_browse_callback(c, file_changed_callback);
 183         }
 184 }
 185
 186 static const char *
 187 browse_title(char *str, size_t size)
 188 {
 189         const char *path = NULL, *prev = NULL, *slash = browser.filelist->path;
 190         char *path_locale;
 191
 192         /* determine the last 2 parts of the path */
 193         while ((slash = strchr(slash, '/')) != NULL) {
 194                 path = prev;
 195                 prev = ++slash;
 196         }
 197
 198         if (path == NULL)
 199                 /* fall back to full path */
 200                 path = browser.filelist->path;
 201
 202         path_locale = utf8_to_locale(path);
 203         g_snprintf(str, size, "%s: %s",
 204                    /* translators: caption of the browser screen */
 205                    _("Browse"), path_locale);
 206         g_free(path_locale);
 207         return str;
 208 }
 209
 210 static void
 211 browse_paint(void)
 212 {
 213         list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 214 }
 215
 216 static bool
 217 browse_cmd(mpdclient_t *c, command_t cmd)
 218 {
 219         switch(cmd) {
 220         case CMD_GO_ROOT_DIRECTORY:
 221                 browser_change_directory(&browser, c, NULL, "");
 222                 file_repaint();
 223                 return true;
 224         case CMD_GO_PARENT_DIRECTORY:
 225                 browser_change_directory(&browser, c, NULL, "..");
 226                 file_repaint();
 227                 return true;
 228
 229         case CMD_LOCATE:
 230                 /* don't let browser_cmd() evaluate the locate command
 231                    - it's a no-op, and by the way, leads to a
 232                    segmentation fault in the current implementation */
 233                 return false;
 234
 235         case CMD_DELETE:
 236                 handle_delete(c);
 237                 file_repaint();
 238                 break;
 239         case CMD_SAVE_PLAYLIST:
 240                 handle_save(c);
 241                 break;
 242         case CMD_SCREEN_UPDATE:
 243                 browser.filelist = mpdclient_filelist_update(c, browser.filelist);
 244 #ifndef NCMPC_MINI
 245                 sync_highlights(c, browser.filelist);
 246 #endif
 247                 list_window_check_selected(browser.lw,
 248                                            filelist_length(browser.filelist));
 249                 file_repaint();
 250                 return false;
 251
 252         case CMD_DB_UPDATE:
 253                 if (c->status == NULL)
 254                         return true;
 255
 256                 if (!c->status->updatingDb) {
 257                         if (mpdclient_cmd_db_update(c, browser.filelist->path) == 0) {
 258                                 if (strcmp(browser.filelist->path, "")) {
 259                                         char *path_locale =
 260                                                 utf8_to_locale(browser.filelist->path);
 261                                         screen_status_printf(_("Database update of %s started"),
 262                                                              path_locale);
 263                                         g_free(path_locale);
 264                                 } else
 265                                         screen_status_printf(_("Database update started"));
 266
 267                                 /* set updatingDb to make shure the browse callback gets called
 268                                  * even if the updated has finished before status is updated */
 269                                 c->status->updatingDb = 1;
 270                         }
 271                 } else
 272                         screen_status_printf(_("Database update running..."));
 273                 return true;
 274
 275         default:
 276                 break;
 277         }
 278
 279         if (browser_cmd(&browser, c, cmd)) {
 280                 if (screen_is_visible(&screen_browse))
 281                         file_repaint();
 282                 return true;
 283         }
 284
 285         return false;
 286 }
 287
 288 const struct screen_functions screen_browse = {
 289         .init = browse_init,
 290         .exit = browse_exit,
 291         .open = browse_open,
 292         .resize = browse_resize,
 293         .paint = browse_paint,
 294         .cmd = browse_cmd,
 295         .get_title = browse_title,
 296 };
 297
 298 bool
 299 screen_file_goto_song(struct mpdclient *c, const struct mpd_song *song)
 300 {
 301         const char *slash, *parent;
 302         char *allocated = NULL;
 303         bool ret;
 304         int i;
 305
 306         assert(song != NULL);
 307         assert(song->file != NULL);
 308
 309         if (strstr(song->file, "//") != NULL)
 310                 /* an URL? */
 311                 return false;
 312
 313         /* determine the song's parent directory and go there */
 314
 315         slash = strrchr(song->file, '/');
 316         if (slash != NULL)
 317                 parent = allocated = g_strndup(song->file, slash - song->file);
 318         else
 319                 parent = "";
 320
 321         ret = browser_change_directory(&browser, c, NULL, parent);
 322         g_free(allocated);
 323         if (!ret)
 324                 return false;
 325
 326         /* select the specified song */
 327
 328         i = filelist_find_song(browser.filelist, song);
 329         if (i < 0)
 330                 i = 0;
 331
 332         list_window_set_selected(browser.lw, i);
 333
 334         /* finally, switch to the file screen */
 335         screen_switch(&screen_browse, c);
 336         return true;
 337 }