src/screen_artist.c

   1 /*
   2  * $Id$
   3  *
   4  * (c) 2005 by Kalle Wallin <kaw@linux.se>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  *
  19  */
  20
  21 #include "config.h"
  22
  23 #ifndef DISABLE_ARTIST_SCREEN
  24 #include "ncmpc.h"
  25 #include "options.h"
  26 #include "support.h"
  27 #include "mpdclient.h"
  28 #include "utils.h"
  29 #include "strfsong.h"
  30 #include "command.h"
  31 #include "screen.h"
  32 #include "screen_utils.h"
  33 #include "screen_browser.h"
  34 #include "gcc.h"
  35
  36 #include <ctype.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <glib.h>
  40 #include <ncurses.h>
  41
  42 #define BUFSIZE 1024
  43
  44 typedef enum { LIST_ARTISTS, LIST_ALBUMS, LIST_SONGS } artist_mode_t;
  45
  46 static artist_mode_t mode = LIST_ARTISTS;
  47 static char *artist = NULL;
  48 static char *album  = NULL;
  49 static unsigned metalist_length = 0;
  50 static GList *metalist = NULL;
  51
  52 static struct screen_browser browser;
  53
  54 static gint
  55 compare_utf8(gconstpointer s1, gconstpointer s2)
  56 {
  57         char *key1, *key2;
  58         int n;
  59
  60         key1 = g_utf8_collate_key(s1,-1);
  61         key2 = g_utf8_collate_key(s2,-1);
  62         n = strcmp(key1,key2);
  63         g_free(key1);
  64         g_free(key2);
  65         return n;
  66 }
  67
  68 /* list_window callback */
  69 static const char *
  70 artist_lw_callback(unsigned idx, mpd_unused int *highlight, mpd_unused void *data)
  71 {
  72         static char buf[BUFSIZE];
  73         char *str, *str_utf8;
  74
  75         if ((str_utf8 = (char *)g_list_nth_data(metalist, idx)) == NULL)
  76                 return NULL;
  77
  78         str = utf8_to_locale(str_utf8);
  79         g_snprintf(buf, BUFSIZE, "[%s]", str);
  80         g_free(str);
  81
  82         return buf;
  83 }
  84
  85 /* the playlist have been updated -> fix highlights */
  86 static void
  87 playlist_changed_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
  88 {
  89         if (browser.filelist == NULL)
  90                 return;
  91
  92         D("screen_artist.c> playlist_callback() [%d]\n", event);
  93         switch(event) {
  94         case PLAYLIST_EVENT_CLEAR:
  95                 clear_highlights(browser.filelist);
  96                 break;
  97         default:
  98                 sync_highlights(c, browser.filelist);
  99                 break;
 100         }
 101 }
 102
 103 /* fetch artists/albums/songs from mpd */
 104 static void
 105 update_metalist(mpdclient_t *c, char *m_artist, char *m_album)
 106 {
 107         g_free(artist);
 108         g_free(album);
 109         artist = NULL;
 110         album = NULL;
 111
 112         if (metalist)
 113                 metalist = string_list_free(metalist);
 114         if (browser.filelist) {
 115                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 116                 mpdclient_filelist_free(browser.filelist);
 117                 browser.filelist = NULL;
 118         }
 119
 120         if (m_album) {
 121                 /* retreive songs... */
 122                 filelist_entry_t *entry;
 123
 124                 artist = m_artist;
 125                 album = m_album;
 126                 if (album[0] == 0) {
 127                         album = g_strdup(_("All tracks"));
 128                         browser.filelist =
 129                                 mpdclient_filelist_search_utf8(c, TRUE,
 130                                                                MPD_TABLE_ARTIST,
 131                                                                artist);
 132                 } else
 133                         browser.filelist =
 134                                 mpdclient_filelist_search_utf8(c, TRUE,
 135                                                                MPD_TABLE_ALBUM,
 136                                                                album);
 137                 /* add a dummy entry for ".." */
 138                 entry = g_malloc0(sizeof(filelist_entry_t));
 139                 entry->entity = NULL;
 140                 browser.filelist->list = g_list_insert(browser.filelist->list,
 141                                                       entry, 0);
 142                 browser.filelist->length++;
 143                 /* install playlist callback and fix highlights */
 144                 sync_highlights(c, browser.filelist);
 145                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 146                 mode = LIST_SONGS;
 147         } else if (m_artist) {
 148                 /* retreive albums... */
 149
 150                 artist = m_artist;
 151                 metalist = mpdclient_get_albums_utf8(c, m_artist);
 152                 /* sort list */
 153                 metalist = g_list_sort(metalist, compare_utf8);
 154                 /* add a dummy entry for ".." */
 155                 metalist = g_list_insert(metalist, g_strdup(".."), 0);
 156                 /* add a dummy entry for all songs */
 157                 metalist = g_list_insert(metalist, g_strdup(_("All tracks")), -1);
 158                 mode = LIST_ALBUMS;
 159         } else {
 160                 /* retreive artists... */
 161
 162                 metalist = mpdclient_get_artists_utf8(c);
 163                 /* sort list */
 164                 metalist = g_list_sort(metalist, compare_utf8);
 165                 mode = LIST_ARTISTS;
 166         }
 167         metalist_length = g_list_length(metalist);
 168         browser.lw->clear = TRUE;
 169 }
 170
 171 /* db updated */
 172 static void
 173 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 174 {
 175         switch(event) {
 176         case BROWSE_DB_UPDATED:
 177                 D("screen_artist.c> browse_callback() [BROWSE_DB_UPDATED]\n");
 178                 browser.lw->clear = 1;
 179                 browser.lw->repaint = 1;
 180                 update_metalist(c, g_strdup(artist), g_strdup(album));
 181                 break;
 182         default:
 183                 break;
 184         }
 185 }
 186
 187 static void
 188 init(WINDOW *w, int cols, int rows)
 189 {
 190         browser.lw = list_window_init(w, cols, rows);
 191         browser.lw_state = list_window_init_state();
 192         artist = NULL;
 193         album = NULL;
 194 }
 195
 196 static void
 197 quit(void)
 198 {
 199         if (browser.filelist)
 200                 mpdclient_filelist_free(browser.filelist);
 201         if (metalist)
 202                 string_list_free(metalist);
 203         g_free(artist);
 204         g_free(album);
 205         artist = NULL;
 206         album = NULL;
 207         list_window_free(browser.lw);
 208         list_window_free_state(browser.lw_state);
 209 }
 210
 211 static void
 212 open(mpd_unused screen_t *screen, mpdclient_t *c)
 213 {
 214         static gboolean callback_installed = FALSE;
 215
 216         if (metalist == NULL && browser.filelist == NULL)
 217                 update_metalist(c, NULL, NULL);
 218         if (!callback_installed) {
 219                 mpdclient_install_browse_callback(c, browse_callback);
 220                 callback_installed = TRUE;
 221         }
 222 }
 223
 224 static void
 225 resize(int cols, int rows)
 226 {
 227         browser.lw->cols = cols;
 228         browser.lw->rows = rows;
 229 }
 230
 231 static void
 232 paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 233 {
 234         browser.lw->clear = 1;
 235
 236         if (browser.filelist) {
 237                 list_window_paint(browser.lw, browser_lw_callback,
 238                                   browser.filelist);
 239                 browser.filelist->updated = FALSE;
 240         } else if (metalist) {
 241                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 242         } else {
 243                 wmove(browser.lw->w, 0, 0);
 244                 wclrtobot(browser.lw->w);
 245         }
 246
 247         wnoutrefresh(browser.lw->w);
 248 }
 249
 250 static void
 251 update(screen_t *screen, mpdclient_t *c)
 252 {
 253         if (browser.filelist && !browser.filelist->updated)
 254                 list_window_paint(browser.lw, browser_lw_callback,
 255                                   browser.filelist);
 256         else if (metalist)
 257                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 258         else
 259                 paint(screen, c);
 260         wnoutrefresh(browser.lw->w);
 261 }
 262
 263 static const char *
 264 get_title(char *str, size_t size)
 265 {
 266         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 267         char *s2 = album ? utf8_to_locale(album) : NULL;
 268
 269         switch(mode) {
 270         case LIST_ARTISTS:
 271                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 272                 break;
 273         case LIST_ALBUMS:
 274                 g_snprintf(str, size,  _("Artist: %s"), s1);
 275                 break;
 276         case LIST_SONGS:
 277                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 278                 break;
 279         }
 280         g_free(s1);
 281         g_free(s2);
 282         return str;
 283 }
 284
 285 static void
 286 add_query(mpdclient_t *c, int table, char *_filter)
 287 {
 288         char *str;
 289         mpdclient_filelist_t *addlist;
 290
 291         str = utf8_to_locale(_filter);
 292         if (table== MPD_TABLE_ALBUM)
 293                 screen_status_printf("Adding album %s...", str);
 294         else
 295                 screen_status_printf("Adding %s...", str);
 296         g_free(str);
 297
 298         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 299         if (addlist) {
 300                 mpdclient_filelist_add_all(c, addlist);
 301                 mpdclient_filelist_free(addlist);
 302         }
 303 }
 304
 305 static int
 306 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 307 {
 308         char *selected;
 309
 310         switch(cmd) {
 311         case CMD_PLAY:
 312                 switch (mode) {
 313                 case LIST_ARTISTS:
 314                         selected = (char *) g_list_nth_data(metalist,
 315                                                             browser.lw->selected);
 316                         update_metalist(c, g_strdup(selected), NULL);
 317                         list_window_push_state(browser.lw_state, browser.lw);
 318                         break;
 319
 320                 case LIST_ALBUMS:
 321                         if (browser.lw->selected == 0) {
 322                                 /* handle ".." */
 323
 324                                 update_metalist(c, NULL, NULL);
 325                                 list_window_reset(browser.lw);
 326                                 /* restore previous list window state */
 327                                 list_window_pop_state(browser.lw_state, browser.lw);
 328                         } else if (browser.lw->selected == metalist_length - 1) {
 329                                 /* handle "show all" */
 330                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 331                                 list_window_push_state(browser.lw_state, browser.lw);
 332                         } else {
 333                                 /* select album */
 334                                 selected = g_list_nth_data(metalist,
 335                                                            browser.lw->selected);
 336                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 337                                 list_window_push_state(browser.lw_state, browser.lw);
 338                         }
 339                         break;
 340
 341                 case LIST_SONGS:
 342                         if (browser.lw->selected == 0) {
 343                                 /* handle ".." */
 344
 345                                 update_metalist(c, g_strdup(artist), NULL);
 346                                 list_window_reset(browser.lw);
 347                                 /* restore previous list window state */
 348                                 list_window_pop_state(browser.lw_state,
 349                                                       browser.lw);
 350                         } else
 351                                 browser_handle_enter(&browser, c);
 352                         break;
 353                 }
 354                 return 1;
 355
 356
 357                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 358
 359         case CMD_GO_PARENT_DIRECTORY:
 360                 switch (mode) {
 361                 case LIST_ARTISTS:
 362                         break;
 363
 364                 case LIST_ALBUMS:
 365                         update_metalist(c, NULL, NULL);
 366                         list_window_reset(browser.lw);
 367                         /* restore previous list window state */
 368                         list_window_pop_state(browser.lw_state, browser.lw);
 369                         break;
 370
 371                 case LIST_SONGS:
 372                         update_metalist(c, g_strdup(artist), NULL);
 373                         list_window_reset(browser.lw);
 374                         /* restore previous list window state */
 375                         list_window_pop_state(browser.lw_state, browser.lw);
 376                         break;
 377                 }
 378                 break;
 379
 380         case CMD_GO_ROOT_DIRECTORY:
 381                 switch (mode) {
 382                 case LIST_ARTISTS:
 383                         break;
 384
 385                 case LIST_ALBUMS:
 386                 case LIST_SONGS:
 387                         update_metalist(c, NULL, NULL);
 388                         list_window_reset(browser.lw);
 389                         /* restore first list window state (pop while returning true) */
 390                         while(list_window_pop_state(browser.lw_state, browser.lw));
 391                         break;
 392                 }
 393                 break;
 394
 395         case CMD_SELECT:
 396                 switch(mode) {
 397                 case LIST_ARTISTS:
 398                         selected = g_list_nth_data(metalist,
 399                                                    browser.lw->selected);
 400                         add_query(c, MPD_TABLE_ARTIST, selected);
 401                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 402                         break;
 403
 404                 case LIST_ALBUMS:
 405                         if (browser.lw->selected &&
 406                             browser.lw->selected == metalist_length - 1)
 407                                 add_query(c, MPD_TABLE_ARTIST, artist);
 408                         else if (browser.lw->selected > 0) {
 409                                 selected = g_list_nth_data(metalist,
 410                                                            browser.lw->selected);
 411                                 add_query(c, MPD_TABLE_ALBUM, selected);
 412                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 413                         }
 414                         break;
 415
 416                 case LIST_SONGS:
 417                         if (browser_handle_select(&browser, c) == 0)
 418                                 /* continue and select next item... */
 419                                 cmd = CMD_LIST_NEXT;
 420                         break;
 421                 }
 422                 break;
 423
 424                 /* continue and update... */
 425         case CMD_SCREEN_UPDATE:
 426                 screen->painted = 0;
 427                 browser.lw->clear = 1;
 428                 browser.lw->repaint = 1;
 429                 update_metalist(c, g_strdup(artist), g_strdup(album));
 430                 screen_status_printf(_("Screen updated!"));
 431                 return 0;
 432
 433         case CMD_LIST_FIND:
 434         case CMD_LIST_RFIND:
 435         case CMD_LIST_FIND_NEXT:
 436         case CMD_LIST_RFIND_NEXT:
 437                 if (browser.filelist)
 438                         return screen_find(screen,
 439                                            browser.lw, browser.filelist->length,
 440                                            cmd, browser_lw_callback,
 441                                            browser.filelist);
 442                 else if (metalist)
 443                         return screen_find(screen,
 444                                            browser.lw, metalist_length,
 445                                            cmd, artist_lw_callback, metalist);
 446                 else
 447                         return 1;
 448
 449         case CMD_MOUSE_EVENT:
 450                 return browser_handle_mouse_event(&browser, c);
 451
 452         default:
 453                 break;
 454         }
 455
 456         if (browser.filelist)
 457                 return list_window_cmd(browser.lw, browser.filelist->length, cmd);
 458         else if (metalist)
 459                 return list_window_cmd(browser.lw, metalist_length, cmd);
 460
 461         return 0;
 462 }
 463
 464 const struct screen_functions screen_artist = {
 465         .init = init,
 466         .exit = quit,
 467         .open = open,
 468         .resize = resize,
 469         .paint = paint,
 470         .update = update,
 471         .cmd = artist_cmd,
 472         .get_title = get_title,
 473 };
 474
 475 #endif /* ENABLE_ARTIST_SCREEN */