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 "i18n.h"
  21 #include "options.h"
  22 #include "charset.h"
  23 #include "mpdclient.h"
  24 #include "utils.h"
  25 #include "strfsong.h"
  26 #include "command.h"
  27 #include "screen.h"
  28 #include "screen_utils.h"
  29 #include "screen_browser.h"
  30 #include "filelist.h"
  31
  32 #include <ctype.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <glib.h>
  36
  37 #define BUFSIZE 1024
  38
  39 typedef enum { LIST_ARTISTS, LIST_ALBUMS, LIST_SONGS } artist_mode_t;
  40
  41 static artist_mode_t mode = LIST_ARTISTS;
  42 static GPtrArray *artist_list, *album_list;
  43 static char *artist = NULL;
  44 static char *album  = NULL;
  45
  46 static struct screen_browser browser;
  47
  48 static gint
  49 compare_utf8(gconstpointer s1, gconstpointer s2)
  50 {
  51         char *key1, *key2;
  52         int n;
  53
  54         key1 = g_utf8_collate_key(s1,-1);
  55         key2 = g_utf8_collate_key(s2,-1);
  56         n = strcmp(key1,key2);
  57         g_free(key1);
  58         g_free(key2);
  59         return n;
  60 }
  61
  62 /* list_window callback */
  63 static const char *
  64 screen_artist_lw_callback(unsigned idx, G_GNUC_UNUSED bool *highlight,
  65                           G_GNUC_UNUSED char** sc, G_GNUC_UNUSED void *data)
  66 {
  67         GPtrArray *list = data;
  68         static char buf[BUFSIZE];
  69         char *str, *str_utf8;
  70
  71         if (mode == LIST_ALBUMS) {
  72                 if (idx == 0)
  73                         return "[..]";
  74                 else if (idx == list->len + 1) {
  75                         str = utf8_to_locale(_("All tracks"));
  76                         g_snprintf(buf, BUFSIZE, "[%s]", str);
  77                         g_free(str);
  78                         return buf;
  79                 }
  80
  81                 --idx;
  82         }
  83
  84         if (idx >= list->len)
  85                 return NULL;
  86
  87         str_utf8 = g_ptr_array_index(list, idx);
  88         assert(str_utf8 != NULL);
  89
  90         str = utf8_to_locale(str_utf8);
  91         g_snprintf(buf, BUFSIZE, "[%s]", str);
  92         g_free(str);
  93
  94         return buf;
  95 }
  96
  97 static void
  98 screen_artist_paint(void);
  99
 100 static void
 101 artist_repaint(void)
 102 {
 103         screen_artist_paint();
 104         wrefresh(browser.lw->w);
 105 }
 106
 107 static GPtrArray *
 108 g_list_to_ptr_array(GList *in)
 109 {
 110         GPtrArray *out = g_ptr_array_sized_new(g_list_length(in));
 111         GList *head = in;
 112
 113         while (in != NULL) {
 114                 g_ptr_array_add(out, in->data);
 115                 in = g_list_next(in);
 116         }
 117
 118         g_list_free(head);
 119         return out;
 120 }
 121
 122 static void
 123 string_array_free(GPtrArray *array)
 124 {
 125         unsigned i;
 126
 127         for (i = 0; i < array->len; ++i) {
 128                 char *value = g_ptr_array_index(array, i);
 129                 g_free(value);
 130         }
 131
 132         g_ptr_array_free(array, TRUE);
 133 }
 134
 135 static void
 136 free_lists(G_GNUC_UNUSED struct mpdclient *c)
 137 {
 138         if (artist_list != NULL) {
 139                 string_array_free(artist_list);
 140                 artist_list = NULL;
 141         }
 142
 143         if (album_list != NULL) {
 144                 string_array_free(album_list);
 145                 album_list = NULL;
 146         }
 147
 148         if (browser.filelist) {
 149                 filelist_free(browser.filelist);
 150                 browser.filelist = NULL;
 151         }
 152 }
 153
 154 static void
 155 load_artist_list(struct mpdclient *c)
 156 {
 157         GList *list;
 158
 159         assert(mode == LIST_ARTISTS);
 160         assert(artist == NULL);
 161         assert(album == NULL);
 162         assert(artist_list == NULL);
 163         assert(album_list == NULL);
 164         assert(browser.filelist == NULL);
 165
 166         list = mpdclient_get_artists(c);
 167         /* sort list */
 168         list = g_list_sort(list, compare_utf8);
 169
 170         artist_list = g_list_to_ptr_array(list);
 171 }
 172
 173 static void
 174 load_album_list(struct mpdclient *c)
 175 {
 176         GList *list;
 177
 178         assert(mode == LIST_ALBUMS);
 179         assert(artist != NULL);
 180         assert(album == NULL);
 181         assert(album_list == NULL);
 182         assert(browser.filelist == NULL);
 183
 184         list = mpdclient_get_albums(c, artist);
 185         /* sort list */
 186         list = g_list_sort(list, compare_utf8);
 187
 188         album_list = g_list_to_ptr_array(list);
 189 }
 190
 191 static void
 192 load_song_list(struct mpdclient *c)
 193 {
 194         assert(mode == LIST_SONGS);
 195         assert(artist != NULL);
 196         assert(album != NULL);
 197         assert(browser.filelist == NULL);
 198
 199         if (album[0] == 0)
 200                 browser.filelist =
 201                         mpdclient_filelist_search(c, TRUE,
 202                                                   MPD_TAG_ARTIST,
 203                                                   artist);
 204         else
 205                 browser.filelist =
 206                         mpdclient_filelist_search(c, TRUE,
 207                                                   MPD_TAG_ALBUM,
 208                                                   album);
 209         if (browser.filelist == NULL)
 210                 browser.filelist = filelist_new();
 211
 212         /* add a dummy entry for ".." */
 213         filelist_prepend(browser.filelist, NULL);
 214
 215 #ifndef NCMPC_MINI
 216         /* fix highlights */
 217         sync_highlights(c, browser.filelist);
 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                 sync_highlights(c, browser.filelist);
 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         char *str;
 395         struct filelist *addlist;
 396
 397         assert(filter != NULL);
 398
 399         str = utf8_to_locale(_filter);
 400         if (table == MPD_TAG_ALBUM)
 401                 screen_status_printf("Adding album %s...", str);
 402         else
 403                 screen_status_printf("Adding %s...", str);
 404         g_free(str);
 405
 406         addlist = mpdclient_filelist_search(c, TRUE, table, _filter);
 407         if (addlist) {
 408                 mpdclient_filelist_add_all(c, addlist);
 409                 filelist_free(addlist);
 410         }
 411 }
 412
 413 static unsigned
 414 metalist_length(void)
 415 {
 416         assert(mode != LIST_ARTISTS || artist_list != NULL);
 417         assert(mode != LIST_ALBUMS || album_list != NULL);
 418
 419         return mode == LIST_ALBUMS
 420                 ? album_list->len + 2
 421                 : artist_list->len;
 422 }
 423
 424 static int
 425 screen_artist_lw_cmd(struct mpdclient *c, command_t cmd)
 426 {
 427         switch (mode) {
 428         case LIST_ARTISTS:
 429         case LIST_ALBUMS:
 430                 return list_window_cmd(browser.lw, metalist_length(), cmd);
 431
 432         case LIST_SONGS:
 433                 return browser_cmd(&browser, c, cmd);
 434         }
 435
 436         assert(0);
 437         return 0;
 438 }
 439
 440 static int
 441 string_array_find(GPtrArray *array, const char *value)
 442 {
 443         guint i;
 444
 445         for (i = 0; i < array->len; ++i)
 446                 if (strcmp((const char*)g_ptr_array_index(array, i),
 447                            value) == 0)
 448                         return i;
 449
 450         return -1;
 451 }
 452
 453 static bool
 454 screen_artist_cmd(struct mpdclient *c, command_t cmd)
 455 {
 456         char *selected;
 457         char *old;
 458         int idx;
 459
 460         switch(cmd) {
 461         case CMD_PLAY:
 462                 switch (mode) {
 463                 case LIST_ARTISTS:
 464                         selected = g_ptr_array_index(artist_list,
 465                                                      browser.lw->selected);
 466                         open_album_list(c, g_strdup(selected));
 467                         list_window_reset(browser.lw);
 468
 469                         artist_repaint();
 470                         return true;
 471
 472                 case LIST_ALBUMS:
 473                         if (browser.lw->selected == 0) {
 474                                 /* handle ".." */
 475                                 old = g_strdup(artist);
 476
 477                                 open_artist_list(c);
 478                                 list_window_reset(browser.lw);
 479                                 /* restore previous list window state */
 480                                 idx = string_array_find(artist_list, old);
 481                                 g_free(old);
 482
 483                                 if (idx >= 0) {
 484                                         list_window_set_selected(browser.lw, idx);
 485                                         list_window_center(browser.lw,
 486                                                            artist_list->len, idx);
 487                                 }
 488                         } else if (browser.lw->selected == album_list->len + 1) {
 489                                 /* handle "show all" */
 490                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 491                                 list_window_reset(browser.lw);
 492                         } else {
 493                                 /* select album */
 494                                 selected = g_ptr_array_index(album_list,
 495                                                              browser.lw->selected - 1);
 496                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 497                                 list_window_reset(browser.lw);
 498                         }
 499
 500                         artist_repaint();
 501                         return true;
 502
 503                 case LIST_SONGS:
 504                         if (browser.lw->selected == 0) {
 505                                 /* handle ".." */
 506                                 old = g_strdup(album);
 507
 508                                 open_album_list(c, g_strdup(artist));
 509                                 list_window_reset(browser.lw);
 510                                 /* restore previous list window state */
 511                                 idx = *old == 0
 512                                         ? (int)album_list->len
 513                                         : string_array_find(album_list, old);
 514                                 g_free(old);
 515
 516                                 if (idx >= 0) {
 517                                         ++idx;
 518                                         list_window_set_selected(browser.lw, idx);
 519                                         list_window_center(browser.lw,
 520                                                            album_list->len, idx);
 521                                 }
 522
 523                                 artist_repaint();
 524                                 return true;
 525                         }
 526                         break;
 527                 }
 528                 break;
 529
 530                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 531
 532         case CMD_GO_PARENT_DIRECTORY:
 533                 switch (mode) {
 534                 case LIST_ARTISTS:
 535                         break;
 536
 537                 case LIST_ALBUMS:
 538                         old = g_strdup(artist);
 539
 540                         open_artist_list(c);
 541                         list_window_reset(browser.lw);
 542                         /* restore previous list window state */
 543                         idx = string_array_find(artist_list, old);
 544                         g_free(old);
 545
 546                         if (idx >= 0) {
 547                                 list_window_set_selected(browser.lw, idx);
 548                                 list_window_center(browser.lw,
 549                                                    artist_list->len, idx);
 550                         }
 551                         break;
 552
 553                 case LIST_SONGS:
 554                         old = g_strdup(album);
 555
 556                         open_album_list(c, g_strdup(artist));
 557                         list_window_reset(browser.lw);
 558                         /* restore previous list window state */
 559                         idx = *old == 0
 560                                 ? (int)album_list->len
 561                                 : string_array_find(album_list, old);
 562                         g_free(old);
 563
 564                         if (idx >= 0) {
 565                                 ++idx;
 566                                 list_window_set_selected(browser.lw, idx);
 567                                 list_window_center(browser.lw,
 568                                                    album_list->len, idx);
 569                         }
 570                         break;
 571                 }
 572
 573                 artist_repaint();
 574                 break;
 575
 576         case CMD_GO_ROOT_DIRECTORY:
 577                 switch (mode) {
 578                 case LIST_ARTISTS:
 579                         break;
 580
 581                 case LIST_ALBUMS:
 582                 case LIST_SONGS:
 583                         open_artist_list(c);
 584                         list_window_reset(browser.lw);
 585                         /* restore first list window state (pop while returning true) */
 586                         /* XXX */
 587                         break;
 588                 }
 589
 590                 artist_repaint();
 591                 break;
 592
 593         case CMD_SELECT:
 594         case CMD_ADD:
 595                 switch(mode) {
 596                 case LIST_ARTISTS:
 597                 {
 598                         unsigned i;
 599                         for(i = browser.lw->selected_start; i <= browser.lw->selected_end; ++i)
 600                         {
 601                                 selected = g_ptr_array_index(artist_list, i);
 602                                 add_query(c, MPD_TAG_ARTIST, selected);
 603                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 604                         }
 605                         break;
 606                 }
 607                 case LIST_ALBUMS:
 608                 {
 609                         unsigned i;
 610                         for(i = browser.lw->selected_start; i <= browser.lw->selected_end; ++i)
 611                         {
 612                                 if(i == album_list->len + 1)
 613                                         add_query(c, MPD_TAG_ARTIST, artist);
 614                                 else if (i > 0)
 615                                 {
 616                                         selected = g_ptr_array_index(album_list,
 617                                                                      browser.lw->selected - 1);
 618                                         add_query(c, MPD_TAG_ALBUM, selected);
 619                                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 620                                 }
 621                         }
 622                         break;
 623                 }
 624
 625                 case LIST_SONGS:
 626                         /* handled by browser_cmd() */
 627                         break;
 628                 }
 629                 break;
 630
 631                 /* continue and update... */
 632         case CMD_SCREEN_UPDATE:
 633                 reload_lists(c);
 634                 return false;
 635
 636         case CMD_LIST_FIND:
 637         case CMD_LIST_RFIND:
 638         case CMD_LIST_FIND_NEXT:
 639         case CMD_LIST_RFIND_NEXT:
 640                 switch (mode) {
 641                 case LIST_ARTISTS:
 642                         screen_find(browser.lw, artist_list->len,
 643                                     cmd, screen_artist_lw_callback,
 644                                     artist_list);
 645                         artist_repaint();
 646                         return true;
 647
 648                 case LIST_ALBUMS:
 649                         screen_find(browser.lw, album_list->len + 2,
 650                                     cmd, screen_artist_lw_callback,
 651                                     album_list);
 652                         artist_repaint();
 653                         return true;
 654
 655                 case LIST_SONGS:
 656                         /* handled by browser_cmd() */
 657                         break;
 658                 }
 659         case CMD_LIST_JUMP:
 660                 switch (mode) {
 661                 case LIST_ARTISTS:
 662                         screen_jump(browser.lw, screen_artist_lw_callback,
 663                                     artist_list);
 664                         artist_repaint();
 665                         return true;
 666
 667                 case LIST_ALBUMS:
 668                         screen_jump(browser.lw, screen_artist_lw_callback,
 669                                     album_list);
 670                         artist_repaint();
 671                         return true;
 672
 673                 case LIST_SONGS:
 674                         /* handled by browser_cmd() */
 675                         break;
 676                 }
 677
 678                 break;
 679
 680         default:
 681                 break;
 682         }
 683
 684         if (screen_artist_lw_cmd(c, cmd)) {
 685                 if (screen_is_visible(&screen_artist))
 686                         artist_repaint();
 687                 return true;
 688         }
 689
 690         return false;
 691 }
 692
 693 const struct screen_functions screen_artist = {
 694         .init = screen_artist_init,
 695         .exit = screen_artist_quit,
 696         .open = screen_artist_open,
 697         .resize = screen_artist_resize,
 698         .paint = screen_artist_paint,
 699         .update = screen_artist_update,
 700         .cmd = screen_artist_cmd,
 701         .get_title = screen_artist_get_title,
 702 };