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_browse.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 list_window_t *lw = NULL;
  50 static mpdclient_filelist_t *filelist = NULL;
  51 static unsigned metalist_length = 0;
  52 static GList *metalist = NULL;
  53 static list_window_state_t *lw_state = NULL;
  54
  55 static gint
  56 compare_utf8(gconstpointer s1, gconstpointer s2)
  57 {
  58         char *key1, *key2;
  59         int n;
  60
  61         key1 = g_utf8_collate_key(s1,-1);
  62         key2 = g_utf8_collate_key(s2,-1);
  63         n = strcmp(key1,key2);
  64         g_free(key1);
  65         g_free(key2);
  66         return n;
  67 }
  68
  69 /* list_window callback */
  70 static const char *
  71 artist_lw_callback(unsigned idx, mpd_unused int *highlight, mpd_unused void *data)
  72 {
  73         static char buf[BUFSIZE];
  74         char *str, *str_utf8;
  75
  76         if ((str_utf8 = (char *)g_list_nth_data(metalist, idx)) == NULL)
  77                 return NULL;
  78
  79         str = utf8_to_locale(str_utf8);
  80         g_snprintf(buf, BUFSIZE, "[%s]", str);
  81         g_free(str);
  82
  83         return buf;
  84 }
  85
  86 /* the playlist have been updated -> fix highlights */
  87 static void
  88 playlist_changed_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
  89 {
  90         if (filelist == NULL)
  91                 return;
  92
  93         D("screen_artist.c> playlist_callback() [%d]\n", event);
  94         switch(event) {
  95         case PLAYLIST_EVENT_CLEAR:
  96                 clear_highlights(filelist);
  97                 break;
  98         default:
  99                 sync_highlights(c, filelist);
 100                 break;
 101         }
 102 }
 103
 104 /* fetch artists/albums/songs from mpd */
 105 static void
 106 update_metalist(mpdclient_t *c, char *m_artist, char *m_album)
 107 {
 108         g_free(artist);
 109         g_free(album);
 110         artist = NULL;
 111         album = NULL;
 112
 113         if (metalist)
 114                 metalist = string_list_free(metalist);
 115         if (filelist) {
 116                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 117                 mpdclient_filelist_free(filelist);
 118                 filelist = NULL;
 119         }
 120
 121         if (m_album) {
 122                 /* retreive songs... */
 123                 filelist_entry_t *entry;
 124
 125                 artist = m_artist;
 126                 album = m_album;
 127                 if (album[0] == 0) {
 128                         album = g_strdup(_("All tracks"));
 129                         filelist = mpdclient_filelist_search_utf8(c,
 130                                                                   TRUE,
 131                                                                   MPD_TABLE_ARTIST,
 132                                                                   artist);
 133                 } else
 134                         filelist = mpdclient_filelist_search_utf8(c,
 135                                                                   TRUE,
 136                                                                   MPD_TABLE_ALBUM,
 137                                                                   album);
 138                 /* add a dummy entry for ".." */
 139                 entry = g_malloc0(sizeof(filelist_entry_t));
 140                 entry->entity = NULL;
 141                 filelist->list = g_list_insert(filelist->list, entry, 0);
 142                 filelist->length++;
 143                 /* install playlist callback and fix highlights */
 144                 sync_highlights(c, 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         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                 lw->clear = 1;
 179                 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         lw = list_window_init(w, cols, rows);
 191         lw_state = list_window_init_state();
 192         artist = NULL;
 193         album = NULL;
 194 }
 195
 196 static void
 197 quit(void)
 198 {
 199         if (filelist)
 200                 mpdclient_filelist_free(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(lw);
 208         list_window_free_state(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 && 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         lw->cols = cols;
 228         lw->rows = rows;
 229 }
 230
 231 static void
 232 paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 233 {
 234         lw->clear = 1;
 235
 236         if (filelist) {
 237                 list_window_paint(lw, browse_lw_callback, (void *) filelist);
 238                 filelist->updated = FALSE;
 239         } else if (metalist) {
 240                 list_window_paint(lw, artist_lw_callback, (void *) metalist);
 241         } else {
 242                 wmove(lw->w, 0, 0);
 243                 wclrtobot(lw->w);
 244         }
 245
 246         wnoutrefresh(lw->w);
 247 }
 248
 249 static void
 250 update(screen_t *screen, mpdclient_t *c)
 251 {
 252         if (filelist && !filelist->updated)
 253                 list_window_paint(lw, browse_lw_callback, (void *) filelist);
 254         else if (metalist)
 255                 list_window_paint(lw, artist_lw_callback, (void *) metalist);
 256         else
 257                 paint(screen, c);
 258         wnoutrefresh(lw->w);
 259 }
 260
 261 static const char *
 262 get_title(char *str, size_t size)
 263 {
 264         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 265         char *s2 = album ? utf8_to_locale(album) : NULL;
 266
 267         switch(mode) {
 268         case LIST_ARTISTS:
 269                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 270                 break;
 271         case LIST_ALBUMS:
 272                 g_snprintf(str, size,  _("Artist: %s"), s1);
 273                 break;
 274         case LIST_SONGS:
 275                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 276                 break;
 277         }
 278         g_free(s1);
 279         g_free(s2);
 280         return str;
 281 }
 282
 283 static void
 284 add_query(mpdclient_t *c, int table, char *_filter)
 285 {
 286         char *str;
 287         mpdclient_filelist_t *addlist;
 288
 289         str = utf8_to_locale(_filter);
 290         if (table== MPD_TABLE_ALBUM)
 291                 screen_status_printf("Adding album %s...", str);
 292         else
 293                 screen_status_printf("Adding %s...", str);
 294         g_free(str);
 295
 296         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 297         if (addlist) {
 298                 mpdclient_filelist_add_all(c, addlist);
 299                 mpdclient_filelist_free(addlist);
 300         }
 301 }
 302
 303 static int
 304 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 305 {
 306         char *selected;
 307
 308         switch(cmd) {
 309         case CMD_PLAY:
 310                 switch (mode) {
 311                 case LIST_ARTISTS:
 312                         selected = (char *) g_list_nth_data(metalist, lw->selected);
 313                         update_metalist(c, g_strdup(selected), NULL);
 314                         list_window_push_state(lw_state,lw);
 315                         break;
 316
 317                 case LIST_ALBUMS:
 318                         if (lw->selected == 0) {
 319                                 /* handle ".." */
 320
 321                                 update_metalist(c, NULL, NULL);
 322                                 list_window_reset(lw);
 323                                 /* restore previous list window state */
 324                                 list_window_pop_state(lw_state,lw);
 325                         } else if (lw->selected == metalist_length - 1) {
 326                                 /* handle "show all" */
 327                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 328                                 list_window_push_state(lw_state,lw);
 329                         } else {
 330                                 /* select album */
 331                                 selected = (char *) g_list_nth_data(metalist, lw->selected);
 332                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 333                                 list_window_push_state(lw_state,lw);
 334                         }
 335                         break;
 336
 337                 case LIST_SONGS:
 338                         if (lw->selected == 0) {
 339                                 /* handle ".." */
 340
 341                                 update_metalist(c, g_strdup(artist), NULL);
 342                                 list_window_reset(lw);
 343                                 /* restore previous list window state */
 344                                 list_window_pop_state(lw_state,lw);
 345                         } else
 346                                 browse_handle_enter(screen, c, lw, filelist);
 347                         break;
 348                 }
 349                 return 1;
 350
 351
 352                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 353
 354         case CMD_GO_PARENT_DIRECTORY:
 355                 switch (mode) {
 356                 case LIST_ARTISTS:
 357                         break;
 358
 359                 case LIST_ALBUMS:
 360                         update_metalist(c, NULL, NULL);
 361                         list_window_reset(lw);
 362                         /* restore previous list window state */
 363                         list_window_pop_state(lw_state,lw);
 364                         break;
 365
 366                 case LIST_SONGS:
 367                         update_metalist(c, g_strdup(artist), NULL);
 368                         list_window_reset(lw);
 369                         /* restore previous list window state */
 370                         list_window_pop_state(lw_state,lw);
 371                         break;
 372                 }
 373                 break;
 374
 375         case CMD_GO_ROOT_DIRECTORY:
 376                 switch (mode) {
 377                 case LIST_ARTISTS:
 378                         break;
 379
 380                 case LIST_ALBUMS:
 381                 case LIST_SONGS:
 382                         update_metalist(c, NULL, NULL);
 383                         list_window_reset(lw);
 384                         /* restore first list window state (pop while returning true) */
 385                         while(list_window_pop_state(lw_state,lw));
 386                         break;
 387                 }
 388                 break;
 389
 390         case CMD_SELECT:
 391                 switch(mode) {
 392                 case LIST_ARTISTS:
 393                         selected = (char *) g_list_nth_data(metalist, lw->selected);
 394                         add_query(c, MPD_TABLE_ARTIST, selected);
 395                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 396                         break;
 397
 398                 case LIST_ALBUMS:
 399                         if (lw->selected && lw->selected == metalist_length - 1)
 400                                 add_query(c, MPD_TABLE_ARTIST, artist);
 401                         else if (lw->selected > 0) {
 402                                 selected = (char *) g_list_nth_data(metalist, lw->selected);
 403                                 add_query(c, MPD_TABLE_ALBUM, selected);
 404                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 405                         }
 406                         break;
 407
 408                 case LIST_SONGS:
 409                         if (browse_handle_select(screen, c, lw, filelist) == 0)
 410                                 /* continue and select next item... */
 411                                 cmd = CMD_LIST_NEXT;
 412                         break;
 413                 }
 414                 break;
 415
 416                 /* continue and update... */
 417         case CMD_SCREEN_UPDATE:
 418                 screen->painted = 0;
 419                 lw->clear = 1;
 420                 lw->repaint = 1;
 421                 update_metalist(c, g_strdup(artist), g_strdup(album));
 422                 screen_status_printf(_("Screen updated!"));
 423                 return 0;
 424
 425         case CMD_LIST_FIND:
 426         case CMD_LIST_RFIND:
 427         case CMD_LIST_FIND_NEXT:
 428         case CMD_LIST_RFIND_NEXT:
 429                 if (filelist)
 430                         return screen_find(screen,
 431                                            lw, filelist->length,
 432                                            cmd, browse_lw_callback, (void *) filelist);
 433                 else if (metalist)
 434                         return screen_find(screen,
 435                                            lw, metalist_length,
 436                                            cmd, artist_lw_callback, (void *) metalist);
 437                 else
 438                         return 1;
 439
 440         case CMD_MOUSE_EVENT:
 441                 return browse_handle_mouse_event(screen,c,lw,filelist);
 442
 443         default:
 444                 break;
 445         }
 446
 447         if (filelist)
 448                 return list_window_cmd(lw, filelist->length, cmd);
 449         else if (metalist)
 450                 return list_window_cmd(lw, metalist_length, cmd);
 451
 452         return 0;
 453 }
 454
 455 const struct screen_functions screen_artist = {
 456         .init = init,
 457         .exit = quit,
 458         .open = open,
 459         .resize = resize,
 460         .paint = paint,
 461         .update = update,
 462         .cmd = artist_cmd,
 463         .get_title = get_title,
 464 };
 465
 466 #endif /* ENABLE_ARTIST_SCREEN */