src/screen_artist.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
  20 #include "screen_artist.h"
  21 #include "screen_interface.h"
  22 #include "screen_message.h"
  23 #include "screen_find.h"
  24 #include "screen.h"
  25 #include "i18n.h"
  26 #include "charset.h"
  27 #include "mpdclient.h"
  28 #include "screen_browser.h"
  29 #include "filelist.h"
  30
  31 #include <assert.h>
  32 #include <string.h>
  33 #include <glib.h>
  34
  35 #define BUFSIZE 1024
  36
  37 typedef enum { LIST_ARTISTS, LIST_ALBUMS, LIST_SONGS } artist_mode_t;
  38
  39 static artist_mode_t mode = LIST_ARTISTS;
  40 static GPtrArray *artist_list, *album_list;
  41 static char *artist = NULL;
  42 static char *album  = NULL;
  43
  44 static struct screen_browser browser;
  45
  46 static gint
  47 compare_utf8(gconstpointer s1, gconstpointer s2)
  48 {
  49         char *key1, *key2;
  50         int n;
  51
  52         key1 = g_utf8_collate_key(s1,-1);
  53         key2 = g_utf8_collate_key(s2,-1);
  54         n = strcmp(key1,key2);
  55         g_free(key1);
  56         g_free(key2);
  57         return n;
  58 }
  59
  60 /* list_window callback */
  61 static const char *
  62 screen_artist_lw_callback(unsigned idx, G_GNUC_UNUSED bool *highlight,
  63                           G_GNUC_UNUSED char** sc, G_GNUC_UNUSED void *data)
  64 {
  65         GPtrArray *list = data;
  66         static char buf[BUFSIZE];
  67         char *str, *str_utf8;
  68
  69         if (mode == LIST_ALBUMS) {
  70                 if (idx == 0)
  71                         return "[..]";
  72                 else if (idx == list->len + 1) {
  73                         str = utf8_to_locale(_("All tracks"));
  74                         g_snprintf(buf, BUFSIZE, "[%s]", str);
  75                         g_free(str);
  76                         return buf;
  77                 }
  78
  79                 --idx;
  80         }
  81
  82         if (idx >= list->len)
  83                 return NULL;
  84
  85         str_utf8 = g_ptr_array_index(list, idx);
  86         assert(str_utf8 != NULL);
  87
  88         str = utf8_to_locale(str_utf8);
  89         g_snprintf(buf, BUFSIZE, "[%s]", str);
  90         g_free(str);
  91
  92         return buf;
  93 }
  94
  95 static void
  96 screen_artist_paint(void);
  97
  98 static void
  99 artist_repaint(void)
 100 {
 101         screen_artist_paint();
 102         wrefresh(browser.lw->w);
 103 }
 104
 105 static GPtrArray *
 106 g_list_to_ptr_array(GList *in)
 107 {
 108         GPtrArray *out = g_ptr_array_sized_new(g_list_length(in));
 109         GList *head = in;
 110
 111         while (in != NULL) {
 112                 g_ptr_array_add(out, in->data);
 113                 in = g_list_next(in);
 114         }
 115
 116         g_list_free(head);
 117         return out;
 118 }
 119
 120 static void
 121 string_array_free(GPtrArray *array)
 122 {
 123         unsigned i;
 124
 125         for (i = 0; i < array->len; ++i) {
 126                 char *value = g_ptr_array_index(array, i);
 127                 g_free(value);
 128         }
 129
 130         g_ptr_array_free(array, TRUE);
 131 }
 132
 133 static void
 134 free_lists(G_GNUC_UNUSED struct mpdclient *c)
 135 {
 136         if (artist_list != NULL) {
 137                 string_array_free(artist_list);
 138                 artist_list = NULL;
 139         }
 140
 141         if (album_list != NULL) {
 142                 string_array_free(album_list);
 143                 album_list = NULL;
 144         }
 145
 146         if (browser.filelist) {
 147                 filelist_free(browser.filelist);
 148                 browser.filelist = NULL;
 149         }
 150 }
 151
 152 static void
 153 load_artist_list(struct mpdclient *c)
 154 {
 155         GList *list;
 156
 157         assert(mode == LIST_ARTISTS);
 158         assert(artist == NULL);
 159         assert(album == NULL);
 160         assert(artist_list == NULL);
 161         assert(album_list == NULL);
 162         assert(browser.filelist == NULL);
 163
 164         list = mpdclient_get_artists(c);
 165         /* sort list */
 166         list = g_list_sort(list, compare_utf8);
 167
 168         artist_list = g_list_to_ptr_array(list);
 169 }
 170
 171 static void
 172 load_album_list(struct mpdclient *c)
 173 {
 174         GList *list;
 175
 176         assert(mode == LIST_ALBUMS);
 177         assert(artist != NULL);
 178         assert(album == NULL);
 179         assert(album_list == NULL);
 180         assert(browser.filelist == NULL);
 181
 182         list = mpdclient_get_albums(c, artist);
 183         /* sort list */
 184         list = g_list_sort(list, compare_utf8);
 185
 186         album_list = g_list_to_ptr_array(list);
 187 }
 188
 189 static void
 190 load_song_list(struct mpdclient *c)
 191 {
 192         struct mpd_connection *connection = c->connection;
 193
 194         assert(mode == LIST_SONGS);
 195         assert(artist != NULL);
 196         assert(album != NULL);
 197         assert(browser.filelist == NULL);
 198
 199         mpd_search_db_songs(connection, true);
 200         mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
 201                                       MPD_TAG_ARTIST, artist);
 202         if (album[0] != 0)
 203                 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
 204                                               MPD_TAG_ALBUM, album);
 205         mpd_search_commit(connection);
 206
 207         browser.filelist = filelist_new_recv(connection);
 208
 209         if (!mpd_response_finish(connection))
 210                 mpdclient_handle_error(c);
 211
 212         /* add a dummy entry for ".." */
 213         filelist_prepend(browser.filelist, NULL);
 214
 215 #ifndef NCMPC_MINI
 216         /* fix highlights */
 217         screen_browser_sync_highlights(browser.filelist, &c->playlist);
 218 #endif
 219 }
 220
 221 static void
 222 free_state(struct mpdclient *c)
 223 {
 224         g_free(artist);
 225         g_free(album);
 226         artist = NULL;
 227         album = NULL;
 228
 229         free_lists(c);
 230 }
 231
 232 static void
 233 open_artist_list(struct mpdclient *c)
 234 {
 235         free_state(c);
 236
 237         mode = LIST_ARTISTS;
 238         load_artist_list(c);
 239 }
 240
 241 static void
 242 open_album_list(struct mpdclient *c, char *_artist)
 243 {
 244         assert(_artist != NULL);
 245
 246         free_state(c);
 247
 248         mode = LIST_ALBUMS;
 249         artist = _artist;
 250         load_album_list(c);
 251 }
 252
 253 static void
 254 open_song_list(struct mpdclient *c, char *_artist, char *_album)
 255 {
 256         assert(_artist != NULL);
 257         assert(_album != NULL);
 258
 259         free_state(c);
 260
 261         mode = LIST_SONGS;
 262         artist = _artist;
 263         album = _album;
 264         load_song_list(c);
 265 }
 266
 267 static void
 268 reload_lists(struct mpdclient *c)
 269 {
 270         free_lists(c);
 271
 272         switch (mode) {
 273         case LIST_ARTISTS:
 274                 load_artist_list(c);
 275                 break;
 276
 277         case LIST_ALBUMS:
 278                 load_album_list(c);
 279                 break;
 280
 281         case LIST_SONGS:
 282                 load_song_list(c);
 283                 break;
 284         }
 285 }
 286
 287 static void
 288 screen_artist_init(WINDOW *w, int cols, int rows)
 289 {
 290         browser.lw = list_window_init(w, cols, rows);
 291         artist = NULL;
 292         album = NULL;
 293 }
 294
 295 static void
 296 screen_artist_quit(void)
 297 {
 298         free_state(NULL);
 299         list_window_free(browser.lw);
 300 }
 301
 302 static void
 303 screen_artist_open(struct mpdclient *c)
 304 {
 305         if (artist_list == NULL && album_list == NULL &&
 306             browser.filelist == NULL)
 307                 reload_lists(c);
 308 }
 309
 310 static void
 311 screen_artist_resize(int cols, int rows)
 312 {
 313         browser.lw->cols = cols;
 314         browser.lw->rows = rows;
 315 }
 316
 317 static void
 318 screen_artist_paint(void)
 319 {
 320         if (browser.filelist) {
 321                 list_window_paint(browser.lw, browser_lw_callback,
 322                                   browser.filelist);
 323         } else if (album_list != NULL)
 324                 list_window_paint(browser.lw, screen_artist_lw_callback,
 325                                   album_list);
 326         else if (artist_list != NULL)
 327                 list_window_paint(browser.lw, screen_artist_lw_callback,
 328                                   artist_list);
 329         else {
 330                 wmove(browser.lw->w, 0, 0);
 331                 wclrtobot(browser.lw->w);
 332         }
 333 }
 334
 335 static const char *
 336 screen_artist_get_title(char *str, size_t size)
 337 {
 338         char *s1, *s2;
 339
 340         switch(mode) {
 341         case LIST_ARTISTS:
 342                 g_snprintf(str, size, _("All artists"));
 343                 break;
 344
 345         case LIST_ALBUMS:
 346                 s1 = utf8_to_locale(artist);
 347                 g_snprintf(str, size, _("Albums of artist: %s"), s1);
 348                 g_free(s1);
 349                 break;
 350
 351         case LIST_SONGS:
 352                 s1 = utf8_to_locale(artist);
 353                 if (*album != 0) {
 354                         s2 = utf8_to_locale(album);
 355                         g_snprintf(str, size,
 356                                    _("Album: %s - %s"), s1, s2);
 357                         g_free(s2);
 358                 } else
 359                         g_snprintf(str, size,
 360                                    _("All tracks of artist: %s"), s1);
 361                 g_free(s1);
 362                 break;
 363         }
 364
 365         return str;
 366 }
 367
 368 static void
 369 screen_artist_update(struct mpdclient *c)
 370 {
 371         if (browser.filelist == NULL)
 372                 return;
 373
 374         if (c->events & MPD_IDLE_DATABASE)
 375                 /* the db has changed -> update the list */
 376                 reload_lists(c);
 377
 378 #ifndef NCMPC_MINI
 379         if (c->events & (MPD_IDLE_DATABASE | MPD_IDLE_PLAYLIST))
 380                 screen_browser_sync_highlights(browser.filelist, &c->playlist);
 381 #endif
 382
 383         if (c->events & (MPD_IDLE_DATABASE
 384 #ifndef NCMPC_MINI
 385                          | MPD_IDLE_PLAYLIST
 386 #endif
 387                          ))
 388                 artist_repaint();
 389 }
 390
 391 static void
 392 add_query(struct mpdclient *c, enum mpd_tag_type table, char *_filter)
 393 {
 394         struct mpd_connection *connection = c->connection;
 395         char *str;
 396         struct filelist *addlist;
 397
 398         assert(filter != NULL);
 399
 400         str = utf8_to_locale(_filter);
 401         if (table == MPD_TAG_ALBUM)
 402                 screen_status_printf("Adding album %s...", str);
 403         else
 404                 screen_status_printf("Adding %s...", str);
 405         g_free(str);
 406
 407         mpd_search_db_songs(connection, true);
 408         mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
 409                                       table, _filter);
 410         mpd_search_commit(connection);
 411
 412         addlist = filelist_new_recv(connection);
 413
 414         if (mpd_response_finish(connection))
 415                 mpdclient_filelist_add_all(c, addlist);
 416         else
 417                 mpdclient_handle_error(c);
 418
 419         filelist_free(addlist);
 420 }
 421
 422 static unsigned
 423 metalist_length(void)
 424 {
 425         assert(mode != LIST_ARTISTS || artist_list != NULL);
 426         assert(mode != LIST_ALBUMS || album_list != NULL);
 427
 428         return mode == LIST_ALBUMS
 429                 ? album_list->len + 2
 430                 : artist_list->len;
 431 }
 432
 433 static int
 434 screen_artist_lw_cmd(struct mpdclient *c, command_t cmd)
 435 {
 436         switch (mode) {
 437         case LIST_ARTISTS:
 438         case LIST_ALBUMS:
 439                 return list_window_cmd(browser.lw, metalist_length(), cmd);
 440
 441         case LIST_SONGS:
 442                 return browser_cmd(&browser, c, cmd);
 443         }
 444
 445         assert(0);
 446         return 0;
 447 }
 448
 449 static int
 450 string_array_find(GPtrArray *array, const char *value)
 451 {
 452         guint i;
 453
 454         for (i = 0; i < array->len; ++i)
 455                 if (strcmp((const char*)g_ptr_array_index(array, i),
 456                            value) == 0)
 457                         return i;
 458
 459         return -1;
 460 }
 461
 462 static bool
 463 screen_artist_cmd(struct mpdclient *c, command_t cmd)
 464 {
 465         char *selected;
 466         char *old;
 467         int idx;
 468
 469         switch(cmd) {
 470         case CMD_PLAY:
 471                 switch (mode) {
 472                 case LIST_ARTISTS:
 473                         if (browser.lw->selected >= artist_list->len)
 474                                 return true;
 475
 476                         selected = g_ptr_array_index(artist_list,
 477                                                      browser.lw->selected);
 478                         open_album_list(c, g_strdup(selected));
 479                         list_window_reset(browser.lw);
 480
 481                         artist_repaint();
 482                         return true;
 483
 484                 case LIST_ALBUMS:
 485                         if (browser.lw->selected == 0) {
 486                                 /* handle ".." */
 487                                 old = g_strdup(artist);
 488
 489                                 open_artist_list(c);
 490                                 list_window_reset(browser.lw);
 491                                 /* restore previous list window state */
 492                                 idx = string_array_find(artist_list, old);
 493                                 g_free(old);
 494
 495                                 if (idx >= 0) {
 496                                         list_window_set_selected(browser.lw, idx);
 497                                         list_window_center(browser.lw,
 498                                                            artist_list->len, idx);
 499                                 }
 500                         } else if (browser.lw->selected == album_list->len + 1) {
 501                                 /* handle "show all" */
 502                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 503                                 list_window_reset(browser.lw);
 504                         } else {
 505                                 /* select album */
 506                                 selected = g_ptr_array_index(album_list,
 507                                                              browser.lw->selected - 1);
 508                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 509                                 list_window_reset(browser.lw);
 510                         }
 511
 512                         artist_repaint();
 513                         return true;
 514
 515                 case LIST_SONGS:
 516                         if (browser.lw->selected == 0) {
 517                                 /* handle ".." */
 518                                 old = g_strdup(album);
 519
 520                                 open_album_list(c, g_strdup(artist));
 521                                 list_window_reset(browser.lw);
 522                                 /* restore previous list window state */
 523                                 idx = *old == 0
 524                                         ? (int)album_list->len
 525                                         : string_array_find(album_list, old);
 526                                 g_free(old);
 527
 528                                 if (idx >= 0) {
 529                                         ++idx;
 530                                         list_window_set_selected(browser.lw, idx);
 531                                         list_window_center(browser.lw,
 532                                                            album_list->len, idx);
 533                                 }
 534
 535                                 artist_repaint();
 536                                 return true;
 537                         }
 538                         break;
 539                 }
 540                 break;
 541
 542                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 543
 544         case CMD_GO_PARENT_DIRECTORY:
 545                 switch (mode) {
 546                 case LIST_ARTISTS:
 547                         break;
 548
 549                 case LIST_ALBUMS:
 550                         old = g_strdup(artist);
 551
 552                         open_artist_list(c);
 553                         list_window_reset(browser.lw);
 554                         /* restore previous list window state */
 555                         idx = string_array_find(artist_list, old);
 556                         g_free(old);
 557
 558                         if (idx >= 0) {
 559                                 list_window_set_selected(browser.lw, idx);
 560                                 list_window_center(browser.lw,
 561                                                    artist_list->len, idx);
 562                         }
 563                         break;
 564
 565                 case LIST_SONGS:
 566                         old = g_strdup(album);
 567
 568                         open_album_list(c, g_strdup(artist));
 569                         list_window_reset(browser.lw);
 570                         /* restore previous list window state */
 571                         idx = *old == 0
 572                                 ? (int)album_list->len
 573                                 : string_array_find(album_list, old);
 574                         g_free(old);
 575
 576                         if (idx >= 0) {
 577                                 ++idx;
 578                                 list_window_set_selected(browser.lw, idx);
 579                                 list_window_center(browser.lw,
 580                                                    album_list->len, idx);
 581                         }
 582                         break;
 583                 }
 584
 585                 artist_repaint();
 586                 break;
 587
 588         case CMD_GO_ROOT_DIRECTORY:
 589                 switch (mode) {
 590                 case LIST_ARTISTS:
 591                         break;
 592
 593                 case LIST_ALBUMS:
 594                 case LIST_SONGS:
 595                         open_artist_list(c);
 596                         list_window_reset(browser.lw);
 597                         /* restore first list window state (pop while returning true) */
 598                         /* XXX */
 599                         break;
 600                 }
 601
 602                 artist_repaint();
 603                 break;
 604
 605         case CMD_SELECT:
 606         case CMD_ADD:
 607                 switch(mode) {
 608                 case LIST_ARTISTS:
 609                         if (browser.lw->selected >= artist_list->len)
 610                                 return true;
 611
 612                         for (unsigned i = browser.lw->selected_start;
 613                              i <= browser.lw->selected_end; ++i) {
 614                                 selected = g_ptr_array_index(artist_list, i);
 615                                 add_query(c, MPD_TAG_ARTIST, selected);
 616                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 617                         }
 618                         break;
 619
 620                 case LIST_ALBUMS:
 621                         for (unsigned i = browser.lw->selected_start;
 622                              i <= browser.lw->selected_end; ++i) {
 623                                 if(i == album_list->len + 1)
 624                                         add_query(c, MPD_TAG_ARTIST, artist);
 625                                 else if (i > 0)
 626                                 {
 627                                         selected = g_ptr_array_index(album_list,
 628                                                                      browser.lw->selected - 1);
 629                                         add_query(c, MPD_TAG_ALBUM, selected);
 630                                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 631                                 }
 632                         }
 633                         break;
 634
 635                 case LIST_SONGS:
 636                         /* handled by browser_cmd() */
 637                         break;
 638                 }
 639                 break;
 640
 641                 /* continue and update... */
 642         case CMD_SCREEN_UPDATE:
 643                 reload_lists(c);
 644                 return false;
 645
 646         case CMD_LIST_FIND:
 647         case CMD_LIST_RFIND:
 648         case CMD_LIST_FIND_NEXT:
 649         case CMD_LIST_RFIND_NEXT:
 650                 switch (mode) {
 651                 case LIST_ARTISTS:
 652                         screen_find(browser.lw, artist_list->len,
 653                                     cmd, screen_artist_lw_callback,
 654                                     artist_list);
 655                         artist_repaint();
 656                         return true;
 657
 658                 case LIST_ALBUMS:
 659                         screen_find(browser.lw, album_list->len + 2,
 660                                     cmd, screen_artist_lw_callback,
 661                                     album_list);
 662                         artist_repaint();
 663                         return true;
 664
 665                 case LIST_SONGS:
 666                         /* handled by browser_cmd() */
 667                         break;
 668                 }
 669         case CMD_LIST_JUMP:
 670                 switch (mode) {
 671                 case LIST_ARTISTS:
 672                         screen_jump(browser.lw, screen_artist_lw_callback,
 673                                     artist_list);
 674                         artist_repaint();
 675                         return true;
 676
 677                 case LIST_ALBUMS:
 678                         screen_jump(browser.lw, screen_artist_lw_callback,
 679                                     album_list);
 680                         artist_repaint();
 681                         return true;
 682
 683                 case LIST_SONGS:
 684                         /* handled by browser_cmd() */
 685                         break;
 686                 }
 687
 688                 break;
 689
 690         default:
 691                 break;
 692         }
 693
 694         if (screen_artist_lw_cmd(c, cmd)) {
 695                 if (screen_is_visible(&screen_artist))
 696                         artist_repaint();
 697                 return true;
 698         }
 699
 700         return false;
 701 }
 702
 703 const struct screen_functions screen_artist = {
 704         .init = screen_artist_init,
 705         .exit = screen_artist_quit,
 706         .open = screen_artist_open,
 707         .resize = screen_artist_resize,
 708         .paint = screen_artist_paint,
 709         .update = screen_artist_update,
 710         .cmd = screen_artist_cmd,
 711         .get_title = screen_artist_get_title,
 712 };