src/screen_file.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   4
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  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         unsigned selected;
  86
  87         if (browser.lw->selected >= filelist_length(browser.filelist))
  88                 return -1;
  89
  90         for(selected = browser.lw->selected_start; selected <= browser.lw->selected_end; ++selected)
  91         {
  92                 entry = filelist_get(browser.filelist, selected);
  93                 if( entry && entry->entity ) {
  94                         mpd_InfoEntity *entity = entry->entity;
  95                         if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
  96                                 mpd_PlaylistFile *plf = entity->info.playlistFile;
  97                                 defaultname = plf->path;
  98                         }
  99                 }
 100         }
 101
 102         if(defaultname)
 103                 defaultname = utf8_to_locale(defaultname);
 104         ret = playlist_save(c, NULL, defaultname);
 105         g_free(defaultname);
 106
 107         return ret;
 108 }
 109
 110 static int
 111 handle_delete(mpdclient_t *c)
 112 {
 113         filelist_entry_t *entry;
 114         mpd_InfoEntity *entity;
 115         mpd_PlaylistFile *plf;
 116         char *str, *buf;
 117         int key;
 118         unsigned selected;
 119
 120         for(selected = browser.lw->selected_start; selected <= browser.lw->selected_end; ++selected)
 121         {
 122                 if (selected >= filelist_length(browser.filelist))
 123                         return -1;
 124
 125                 entry = filelist_get(browser.filelist, selected);
 126                 if( entry==NULL || entry->entity==NULL )
 127                         continue;
 128
 129                 entity = entry->entity;
 130
 131                 if( entity->type!=MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 132                         /* translators: the "delete" command is only possible
 133                            for playlists; the user attempted to delete a song
 134                            or a directory or something else */
 135                         screen_status_printf(_("Deleting this item is not possible"));
 136                         screen_bell();
 137                         continue;
 138                 }
 139
 140                 plf = entity->info.playlistFile;
 141                 str = utf8_to_locale(g_basename(plf->path));
 142                 buf = g_strdup_printf(_("Delete playlist %s [%s/%s] ? "), str, YES, NO);
 143                 g_free(str);
 144                 key = tolower(screen_getch(screen.status_window.w, buf));
 145                 g_free(buf);
 146                 if( key != YES[0] ) {
 147                         /* translators: a dialog was aborted by the user */
 148                         screen_status_printf(_("Aborted"));
 149                         return 0;
 150                 }
 151
 152                 if( mpdclient_cmd_delete_playlist(c, plf->path) )
 153                         continue;
 154
 155                 /* translators: MPD deleted the playlist, as requested by the
 156                    user */
 157                 screen_status_printf(_("Playlist deleted"));
 158         }
 159         return 0;
 160 }
 161
 162 static void
 163 browse_init(WINDOW *w, int cols, int rows)
 164 {
 165         browser.lw = list_window_init(w, cols, rows);
 166 }
 167
 168 static void
 169 browse_resize(int cols, int rows)
 170 {
 171         browser.lw->cols = cols;
 172         browser.lw->rows = rows;
 173 }
 174
 175 static void
 176 browse_exit(void)
 177 {
 178         if (browser.filelist)
 179                 filelist_free(browser.filelist);
 180         list_window_free(browser.lw);
 181 }
 182
 183 static void
 184 browse_open(G_GNUC_UNUSED mpdclient_t *c)
 185 {
 186         if (browser.filelist == NULL) {
 187                 browser.filelist = mpdclient_filelist_get(c, "");
 188 #ifndef NCMPC_MINI
 189                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 190 #endif
 191                 mpdclient_install_browse_callback(c, file_changed_callback);
 192         }
 193 }
 194
 195 static const char *
 196 browse_title(char *str, size_t size)
 197 {
 198         const char *path = NULL, *prev = NULL, *slash = browser.filelist->path;
 199         char *path_locale;
 200
 201         /* determine the last 2 parts of the path */
 202         while ((slash = strchr(slash, '/')) != NULL) {
 203                 path = prev;
 204                 prev = ++slash;
 205         }
 206
 207         if (path == NULL)
 208                 /* fall back to full path */
 209                 path = browser.filelist->path;
 210
 211         path_locale = utf8_to_locale(path);
 212         g_snprintf(str, size, "%s: %s",
 213                    /* translators: caption of the browser screen */
 214                    _("Browse"), path_locale);
 215         g_free(path_locale);
 216         return str;
 217 }
 218
 219 static void
 220 browse_paint(void)
 221 {
 222         list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 223 }
 224
 225 static bool
 226 browse_cmd(mpdclient_t *c, command_t cmd)
 227 {
 228         switch(cmd) {
 229         case CMD_GO_ROOT_DIRECTORY:
 230                 browser_change_directory(&browser, c, NULL, "");
 231                 file_repaint();
 232                 return true;
 233         case CMD_GO_PARENT_DIRECTORY:
 234                 browser_change_directory(&browser, c, NULL, "..");
 235                 file_repaint();
 236                 return true;
 237
 238         case CMD_LOCATE:
 239                 /* don't let browser_cmd() evaluate the locate command
 240                    - it's a no-op, and by the way, leads to a
 241                    segmentation fault in the current implementation */
 242                 return false;
 243
 244         case CMD_DELETE:
 245                 handle_delete(c);
 246                 file_repaint();
 247                 break;
 248         case CMD_SAVE_PLAYLIST:
 249                 handle_save(c);
 250                 break;
 251         case CMD_SCREEN_UPDATE:
 252                 browser.filelist = mpdclient_filelist_update(c, browser.filelist);
 253 #ifndef NCMPC_MINI
 254                 sync_highlights(c, browser.filelist);
 255 #endif
 256                 list_window_check_selected(browser.lw,
 257                                            filelist_length(browser.filelist));
 258                 file_repaint();
 259                 return false;
 260
 261         case CMD_DB_UPDATE:
 262                 if (c->status == NULL)
 263                         return true;
 264
 265                 if (!c->status->updatingDb) {
 266                         if (mpdclient_cmd_db_update(c, browser.filelist->path) == 0) {
 267                                 if (strcmp(browser.filelist->path, "")) {
 268                                         char *path_locale =
 269                                                 utf8_to_locale(browser.filelist->path);
 270                                         screen_status_printf(_("Database update of %s started"),
 271                                                              path_locale);
 272                                         g_free(path_locale);
 273                                 } else
 274                                         screen_status_printf(_("Database update started"));
 275
 276                                 /* set updatingDb to make shure the browse callback gets called
 277                                  * even if the updated has finished before status is updated */
 278                                 c->status->updatingDb = 1;
 279                         }
 280                 } else
 281                         screen_status_printf(_("Database update running..."));
 282                 return true;
 283
 284         default:
 285                 break;
 286         }
 287
 288         if (browser_cmd(&browser, c, cmd)) {
 289                 if (screen_is_visible(&screen_browse))
 290                         file_repaint();
 291                 return true;
 292         }
 293
 294         return false;
 295 }
 296
 297 const struct screen_functions screen_browse = {
 298         .init = browse_init,
 299         .exit = browse_exit,
 300         .open = browse_open,
 301         .resize = browse_resize,
 302         .paint = browse_paint,
 303         .cmd = browse_cmd,
 304         .get_title = browse_title,
 305 };
 306
 307 bool
 308 screen_file_goto_song(struct mpdclient *c, const struct mpd_song *song)
 309 {
 310         const char *slash, *parent;
 311         char *allocated = NULL;
 312         bool ret;
 313         int i;
 314
 315         assert(song != NULL);
 316         assert(song->file != NULL);
 317
 318         if (strstr(song->file, "//") != NULL)
 319                 /* an URL? */
 320                 return false;
 321
 322         /* determine the song's parent directory and go there */
 323
 324         slash = strrchr(song->file, '/');
 325         if (slash != NULL)
 326                 parent = allocated = g_strndup(song->file, slash - song->file);
 327         else
 328                 parent = "";
 329
 330         ret = browser_change_directory(&browser, c, NULL, parent);
 331         g_free(allocated);
 332         if (!ret)
 333                 return false;
 334
 335         /* select the specified song */
 336
 337         i = filelist_find_song(browser.filelist, song);
 338         if (i < 0)
 339                 i = 0;
 340
 341         list_window_set_selected(browser.lw, i);
 342
 343         /* finally, switch to the file screen */
 344         screen_switch(&screen_browse, c);
 345         return true;
 346 }