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 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 paint(void);
  99
 100 static void
 101 artist_repaint(void)
 102 {
 103         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 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 quit(void)
 297 {
 298         free_state(NULL);
 299         list_window_free(browser.lw);
 300 }
 301
 302 static void
 303 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 resize(int cols, int rows)
 312 {
 313         browser.lw->cols = cols;
 314         browser.lw->rows = rows;
 315 }
 316
 317 static void
 318 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, artist_lw_callback, album_list);
 325         else if (artist_list != NULL)
 326                 list_window_paint(browser.lw, artist_lw_callback, artist_list);
 327         else {
 328                 wmove(browser.lw->w, 0, 0);
 329                 wclrtobot(browser.lw->w);
 330         }
 331 }
 332
 333 static const char *
 334 get_title(char *str, size_t size)
 335 {
 336         char *s1, *s2;
 337
 338         switch(mode) {
 339         case LIST_ARTISTS:
 340                 g_snprintf(str, size, _("All artists"));
 341                 break;
 342
 343         case LIST_ALBUMS:
 344                 s1 = utf8_to_locale(artist);
 345                 g_snprintf(str, size, _("Albums of artist: %s"), s1);
 346                 g_free(s1);
 347                 break;
 348
 349         case LIST_SONGS:
 350                 s1 = utf8_to_locale(artist);
 351                 if (*album != 0) {
 352                         s2 = utf8_to_locale(album);
 353                         g_snprintf(str, size,
 354                                    _("Album: %s - %s"), s1, s2);
 355                         g_free(s2);
 356                 } else
 357                         g_snprintf(str, size,
 358                                    _("All tracks of artist: %s"), s1);
 359                 g_free(s1);
 360                 break;
 361         }
 362
 363         return str;
 364 }
 365
 366 static void
 367 screen_artist_update(struct mpdclient *c)
 368 {
 369         if (browser.filelist == NULL)
 370                 return;
 371
 372         if (c->events & MPD_IDLE_DATABASE)
 373                 /* the db has changed -> update the list */
 374                 reload_lists(c);
 375
 376 #ifndef NCMPC_MINI
 377         if (c->events & (MPD_IDLE_DATABASE | MPD_IDLE_PLAYLIST))
 378                 sync_highlights(c, browser.filelist);
 379 #endif
 380
 381         if (c->events & (MPD_IDLE_DATABASE
 382 #ifndef NCMPC_MINI
 383                          | MPD_IDLE_PLAYLIST
 384 #endif
 385                          ))
 386                 artist_repaint();
 387 }
 388
 389 static void
 390 add_query(struct mpdclient *c, enum mpd_tag_type table, char *_filter)
 391 {
 392         char *str;
 393         struct filelist *addlist;
 394
 395         assert(filter != NULL);
 396
 397         str = utf8_to_locale(_filter);
 398         if (table == MPD_TAG_ALBUM)
 399                 screen_status_printf("Adding album %s...", str);
 400         else
 401                 screen_status_printf("Adding %s...", str);
 402         g_free(str);
 403
 404         addlist = mpdclient_filelist_search(c, TRUE, table, _filter);
 405         if (addlist) {
 406                 mpdclient_filelist_add_all(c, addlist);
 407                 filelist_free(addlist);
 408         }
 409 }
 410
 411 static unsigned
 412 metalist_length(void)
 413 {
 414         assert(mode != LIST_ARTISTS || artist_list != NULL);
 415         assert(mode != LIST_ALBUMS || album_list != NULL);
 416
 417         return mode == LIST_ALBUMS
 418                 ? album_list->len + 2
 419                 : artist_list->len;
 420 }
 421
 422 static int
 423 artist_lw_cmd(struct mpdclient *c, command_t cmd)
 424 {
 425         switch (mode) {
 426         case LIST_ARTISTS:
 427         case LIST_ALBUMS:
 428                 return list_window_cmd(browser.lw, metalist_length(), cmd);
 429
 430         case LIST_SONGS:
 431                 return browser_cmd(&browser, c, cmd);
 432         }
 433
 434         assert(0);
 435         return 0;
 436 }
 437
 438 static int
 439 string_array_find(GPtrArray *array, const char *value)
 440 {
 441         guint i;
 442
 443         for (i = 0; i < array->len; ++i)
 444                 if (strcmp((const char*)g_ptr_array_index(array, i),
 445                            value) == 0)
 446                         return i;
 447
 448         return -1;
 449 }
 450
 451 static bool
 452 artist_cmd(struct mpdclient *c, command_t cmd)
 453 {
 454         char *selected;
 455         char *old;
 456         int idx;
 457
 458         switch(cmd) {
 459         case CMD_PLAY:
 460                 switch (mode) {
 461                 case LIST_ARTISTS:
 462                         selected = g_ptr_array_index(artist_list,
 463                                                      browser.lw->selected);
 464                         open_album_list(c, g_strdup(selected));
 465                         list_window_reset(browser.lw);
 466
 467                         artist_repaint();
 468                         return true;
 469
 470                 case LIST_ALBUMS:
 471                         if (browser.lw->selected == 0) {
 472                                 /* handle ".." */
 473                                 old = g_strdup(artist);
 474
 475                                 open_artist_list(c);
 476                                 list_window_reset(browser.lw);
 477                                 /* restore previous list window state */
 478                                 idx = string_array_find(artist_list, old);
 479                                 g_free(old);
 480
 481                                 if (idx >= 0) {
 482                                         list_window_set_selected(browser.lw, idx);
 483                                         list_window_center(browser.lw,
 484                                                            artist_list->len, idx);
 485                                 }
 486                         } else if (browser.lw->selected == album_list->len + 1) {
 487                                 /* handle "show all" */
 488                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 489                                 list_window_reset(browser.lw);
 490                         } else {
 491                                 /* select album */
 492                                 selected = g_ptr_array_index(album_list,
 493                                                              browser.lw->selected - 1);
 494                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 495                                 list_window_reset(browser.lw);
 496                         }
 497
 498                         artist_repaint();
 499                         return true;
 500
 501                 case LIST_SONGS:
 502                         if (browser.lw->selected == 0) {
 503                                 /* handle ".." */
 504                                 old = g_strdup(album);
 505
 506                                 open_album_list(c, g_strdup(artist));
 507                                 list_window_reset(browser.lw);
 508                                 /* restore previous list window state */
 509                                 idx = *old == 0
 510                                         ? (int)album_list->len
 511                                         : string_array_find(album_list, old);
 512                                 g_free(old);
 513
 514                                 if (idx >= 0) {
 515                                         ++idx;
 516                                         list_window_set_selected(browser.lw, idx);
 517                                         list_window_center(browser.lw,
 518                                                            album_list->len, idx);
 519                                 }
 520
 521                                 artist_repaint();
 522                                 return true;
 523                         }
 524                         break;
 525                 }
 526                 break;
 527
 528                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 529
 530         case CMD_GO_PARENT_DIRECTORY:
 531                 switch (mode) {
 532                 case LIST_ARTISTS:
 533                         break;
 534
 535                 case LIST_ALBUMS:
 536                         old = g_strdup(artist);
 537
 538                         open_artist_list(c);
 539                         list_window_reset(browser.lw);
 540                         /* restore previous list window state */
 541                         idx = string_array_find(artist_list, old);
 542                         g_free(old);
 543
 544                         if (idx >= 0) {
 545                                 list_window_set_selected(browser.lw, idx);
 546                                 list_window_center(browser.lw,
 547                                                    artist_list->len, idx);
 548                         }
 549                         break;
 550
 551                 case LIST_SONGS:
 552                         old = g_strdup(album);
 553
 554                         open_album_list(c, g_strdup(artist));
 555                         list_window_reset(browser.lw);
 556                         /* restore previous list window state */
 557                         idx = *old == 0
 558                                 ? (int)album_list->len
 559                                 : string_array_find(album_list, old);
 560                         g_free(old);
 561
 562                         if (idx >= 0) {
 563                                 ++idx;
 564                                 list_window_set_selected(browser.lw, idx);
 565                                 list_window_center(browser.lw,
 566                                                    album_list->len, idx);
 567                         }
 568                         break;
 569                 }
 570
 571                 artist_repaint();
 572                 break;
 573
 574         case CMD_GO_ROOT_DIRECTORY:
 575                 switch (mode) {
 576                 case LIST_ARTISTS:
 577                         break;
 578
 579                 case LIST_ALBUMS:
 580                 case LIST_SONGS:
 581                         open_artist_list(c);
 582                         list_window_reset(browser.lw);
 583                         /* restore first list window state (pop while returning true) */
 584                         /* XXX */
 585                         break;
 586                 }
 587
 588                 artist_repaint();
 589                 break;
 590
 591         case CMD_SELECT:
 592         case CMD_ADD:
 593                 switch(mode) {
 594                 case LIST_ARTISTS:
 595                 {
 596                         unsigned i;
 597                         for(i = browser.lw->selected_start; i <= browser.lw->selected_end; ++i)
 598                         {
 599                                 selected = g_ptr_array_index(artist_list, i);
 600                                 add_query(c, MPD_TAG_ARTIST, selected);
 601                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 602                         }
 603                         break;
 604                 }
 605                 case LIST_ALBUMS:
 606                 {
 607                         unsigned i;
 608                         for(i = browser.lw->selected_start; i <= browser.lw->selected_end; ++i)
 609                         {
 610                                 if(i == album_list->len + 1)
 611                                         add_query(c, MPD_TAG_ARTIST, artist);
 612                                 else if (i > 0)
 613                                 {
 614                                         selected = g_ptr_array_index(album_list,
 615                                                                      browser.lw->selected - 1);
 616                                         add_query(c, MPD_TAG_ALBUM, selected);
 617                                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 618                                 }
 619                         }
 620                         break;
 621                 }
 622
 623                 case LIST_SONGS:
 624                         /* handled by browser_cmd() */
 625                         break;
 626                 }
 627                 break;
 628
 629                 /* continue and update... */
 630         case CMD_SCREEN_UPDATE:
 631                 reload_lists(c);
 632                 return false;
 633
 634         case CMD_LIST_FIND:
 635         case CMD_LIST_RFIND:
 636         case CMD_LIST_FIND_NEXT:
 637         case CMD_LIST_RFIND_NEXT:
 638                 switch (mode) {
 639                 case LIST_ARTISTS:
 640                         screen_find(browser.lw, artist_list->len,
 641                                     cmd, artist_lw_callback, artist_list);
 642                         artist_repaint();
 643                         return true;
 644
 645                 case LIST_ALBUMS:
 646                         screen_find(browser.lw, album_list->len + 2,
 647                                     cmd, artist_lw_callback, album_list);
 648                         artist_repaint();
 649                         return true;
 650
 651                 case LIST_SONGS:
 652                         /* handled by browser_cmd() */
 653                         break;
 654                 }
 655         case CMD_LIST_JUMP:
 656                 switch (mode) {
 657                 case LIST_ARTISTS:
 658                         screen_jump(browser.lw, artist_lw_callback, artist_list);
 659                         artist_repaint();
 660                         return true;
 661
 662                 case LIST_ALBUMS:
 663                         screen_jump(browser.lw, artist_lw_callback, album_list);
 664                         artist_repaint();
 665                         return true;
 666
 667                 case LIST_SONGS:
 668                         /* handled by browser_cmd() */
 669                         break;
 670                 }
 671
 672                 break;
 673
 674         default:
 675                 break;
 676         }
 677
 678         if (artist_lw_cmd(c, cmd)) {
 679                 if (screen_is_visible(&screen_artist))
 680                         artist_repaint();
 681                 return true;
 682         }
 683
 684         return false;
 685 }
 686
 687 const struct screen_functions screen_artist = {
 688         .init = init,
 689         .exit = quit,
 690         .open = open,
 691         .resize = resize,
 692         .paint = paint,
 693         .update = screen_artist_update,
 694         .cmd = artist_cmd,
 695         .get_title = get_title,
 696 };