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         const char *const*t1 = s1, *const*t2 = s2;
  50         char *key1, *key2;
  51         int n;
  52
  53         key1 = g_utf8_collate_key(*t1,-1);
  54         key2 = g_utf8_collate_key(*t2,-1);
  55         n = strcmp(key1,key2);
  56         g_free(key1);
  57         g_free(key2);
  58         return n;
  59 }
  60
  61 /* list_window callback */
  62 static const char *
  63 screen_artist_lw_callback(unsigned idx, 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         assert(idx < list->len);
  83
  84         str_utf8 = g_ptr_array_index(list, idx);
  85         assert(str_utf8 != NULL);
  86
  87         str = utf8_to_locale(str_utf8);
  88         g_snprintf(buf, BUFSIZE, "[%s]", str);
  89         g_free(str);
  90
  91         return buf;
  92 }
  93
  94 static void
  95 screen_artist_paint(void);
  96
  97 static void
  98 artist_repaint(void)
  99 {
 100         screen_artist_paint();
 101         wrefresh(browser.lw->w);
 102 }
 103
 104 static void
 105 string_array_free(GPtrArray *array)
 106 {
 107         unsigned i;
 108
 109         for (i = 0; i < array->len; ++i) {
 110                 char *value = g_ptr_array_index(array, i);
 111                 g_free(value);
 112         }
 113
 114         g_ptr_array_free(array, TRUE);
 115 }
 116
 117 static void
 118 free_lists(void)
 119 {
 120         if (artist_list != NULL) {
 121                 string_array_free(artist_list);
 122                 artist_list = NULL;
 123         }
 124
 125         if (album_list != NULL) {
 126                 string_array_free(album_list);
 127                 album_list = NULL;
 128         }
 129
 130         if (browser.filelist) {
 131                 filelist_free(browser.filelist);
 132                 browser.filelist = NULL;
 133         }
 134 }
 135
 136 static void
 137 recv_tag_values(struct mpd_connection *connection, enum mpd_tag_type tag,
 138                 GPtrArray *list)
 139 {
 140         struct mpd_pair *pair;
 141
 142         while ((pair = mpd_recv_pair_tag(connection, tag)) != NULL) {
 143                 g_ptr_array_add(list, g_strdup(pair->value));
 144                 mpd_return_pair(connection, pair);
 145         }
 146 }
 147
 148 static void
 149 load_artist_list(struct mpdclient *c)
 150 {
 151         struct mpd_connection *connection = mpdclient_get_connection(c);
 152
 153         assert(mode == LIST_ARTISTS);
 154         assert(artist == NULL);
 155         assert(album == NULL);
 156         assert(artist_list == NULL);
 157         assert(album_list == NULL);
 158         assert(browser.filelist == NULL);
 159
 160         artist_list = g_ptr_array_new();
 161
 162         if (connection != NULL) {
 163                 mpd_search_db_tags(connection, MPD_TAG_ARTIST);
 164                 mpd_search_commit(connection);
 165                 recv_tag_values(connection, MPD_TAG_ARTIST, artist_list);
 166
 167                 if (!mpd_response_finish(connection))
 168                         mpdclient_handle_error(c);
 169         }
 170
 171         /* sort list */
 172         g_ptr_array_sort(artist_list, compare_utf8);
 173         list_window_set_length(browser.lw, artist_list->len);
 174 }
 175
 176 static void
 177 load_album_list(struct mpdclient *c)
 178 {
 179         struct mpd_connection *connection = mpdclient_get_connection(c);
 180
 181         assert(mode == LIST_ALBUMS);
 182         assert(artist != NULL);
 183         assert(album == NULL);
 184         assert(album_list == NULL);
 185         assert(browser.filelist == NULL);
 186
 187         album_list = g_ptr_array_new();
 188
 189         if (connection != NULL) {
 190                 mpd_search_db_tags(connection, MPD_TAG_ALBUM);
 191                 mpd_search_add_tag_constraint(connection,
 192                                               MPD_OPERATOR_DEFAULT,
 193                                               MPD_TAG_ARTIST, artist);
 194                 mpd_search_commit(connection);
 195
 196                 recv_tag_values(connection, MPD_TAG_ALBUM, album_list);
 197
 198                 if (!mpd_response_finish(connection))
 199                         mpdclient_handle_error(c);
 200         }
 201
 202         /* sort list */
 203         g_ptr_array_sort(album_list, compare_utf8);
 204
 205         list_window_set_length(browser.lw, album_list->len + 2);
 206 }
 207
 208 static void
 209 load_song_list(struct mpdclient *c)
 210 {
 211         struct mpd_connection *connection = mpdclient_get_connection(c);
 212
 213         assert(mode == LIST_SONGS);
 214         assert(artist != NULL);
 215         assert(album != NULL);
 216         assert(browser.filelist == NULL);
 217
 218         mpd_search_db_songs(connection, true);
 219         mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
 220                                       MPD_TAG_ARTIST, artist);
 221         if (album[0] != 0)
 222                 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
 223                                               MPD_TAG_ALBUM, album);
 224         mpd_search_commit(connection);
 225
 226         browser.filelist = filelist_new();
 227         /* add a dummy entry for ".." */
 228         filelist_append(browser.filelist, NULL);
 229
 230         filelist_recv(browser.filelist, connection);
 231
 232         if (!mpd_response_finish(connection))
 233                 mpdclient_handle_error(c);
 234
 235 #ifndef NCMPC_MINI
 236         /* fix highlights */
 237         screen_browser_sync_highlights(browser.filelist, &c->playlist);
 238 #endif
 239         list_window_set_length(browser.lw, filelist_length(browser.filelist));
 240 }
 241
 242 static void
 243 free_state(void)
 244 {
 245         g_free(artist);
 246         g_free(album);
 247         artist = NULL;
 248         album = NULL;
 249
 250         free_lists();
 251 }
 252
 253 static void
 254 open_artist_list(struct mpdclient *c)
 255 {
 256         free_state();
 257
 258         mode = LIST_ARTISTS;
 259         load_artist_list(c);
 260 }
 261
 262 static void
 263 open_album_list(struct mpdclient *c, char *_artist)
 264 {
 265         assert(_artist != NULL);
 266
 267         free_state();
 268
 269         mode = LIST_ALBUMS;
 270         artist = _artist;
 271         load_album_list(c);
 272 }
 273
 274 static void
 275 open_song_list(struct mpdclient *c, char *_artist, char *_album)
 276 {
 277         assert(_artist != NULL);
 278         assert(_album != NULL);
 279
 280         free_state();
 281
 282         mode = LIST_SONGS;
 283         artist = _artist;
 284         album = _album;
 285         load_song_list(c);
 286 }
 287
 288 static void
 289 reload_lists(struct mpdclient *c)
 290 {
 291         free_lists();
 292
 293         switch (mode) {
 294         case LIST_ARTISTS:
 295                 load_artist_list(c);
 296                 break;
 297
 298         case LIST_ALBUMS:
 299                 load_album_list(c);
 300                 break;
 301
 302         case LIST_SONGS:
 303                 load_song_list(c);
 304                 break;
 305         }
 306 }
 307
 308 static void
 309 screen_artist_init(WINDOW *w, int cols, int rows)
 310 {
 311         browser.lw = list_window_init(w, cols, rows);
 312         artist = NULL;
 313         album = NULL;
 314 }
 315
 316 static void
 317 screen_artist_quit(void)
 318 {
 319         free_state();
 320         list_window_free(browser.lw);
 321 }
 322
 323 static void
 324 screen_artist_open(struct mpdclient *c)
 325 {
 326         if (artist_list == NULL && album_list == NULL &&
 327             browser.filelist == NULL)
 328                 reload_lists(c);
 329 }
 330
 331 static void
 332 screen_artist_resize(int cols, int rows)
 333 {
 334         list_window_resize(browser.lw, cols, rows);
 335 }
 336
 337 static void
 338 screen_artist_paint(void)
 339 {
 340         if (browser.filelist) {
 341                 screen_browser_paint(&browser);
 342         } else if (album_list != NULL)
 343                 list_window_paint(browser.lw, screen_artist_lw_callback,
 344                                   album_list);
 345         else if (artist_list != NULL)
 346                 list_window_paint(browser.lw, screen_artist_lw_callback,
 347                                   artist_list);
 348         else {
 349                 wmove(browser.lw->w, 0, 0);
 350                 wclrtobot(browser.lw->w);
 351         }
 352 }
 353
 354 static const char *
 355 screen_artist_get_title(char *str, size_t size)
 356 {
 357         char *s1, *s2;
 358
 359         switch(mode) {
 360         case LIST_ARTISTS:
 361                 g_snprintf(str, size, _("All artists"));
 362                 break;
 363
 364         case LIST_ALBUMS:
 365                 s1 = utf8_to_locale(artist);
 366                 g_snprintf(str, size, _("Albums of artist: %s"), s1);
 367                 g_free(s1);
 368                 break;
 369
 370         case LIST_SONGS:
 371                 s1 = utf8_to_locale(artist);
 372                 if (*album != 0) {
 373                         s2 = utf8_to_locale(album);
 374                         g_snprintf(str, size,
 375                                    _("Album: %s - %s"), s1, s2);
 376                         g_free(s2);
 377                 } else
 378                         g_snprintf(str, size,
 379                                    _("All tracks of artist: %s"), s1);
 380                 g_free(s1);
 381                 break;
 382         }
 383
 384         return str;
 385 }
 386
 387 static void
 388 screen_artist_update(struct mpdclient *c)
 389 {
 390         if (browser.filelist == NULL)
 391                 return;
 392
 393         if (c->events & MPD_IDLE_DATABASE)
 394                 /* the db has changed -> update the list */
 395                 reload_lists(c);
 396
 397 #ifndef NCMPC_MINI
 398         if (c->events & (MPD_IDLE_DATABASE | MPD_IDLE_PLAYLIST))
 399                 screen_browser_sync_highlights(browser.filelist, &c->playlist);
 400 #endif
 401
 402         if (c->events & (MPD_IDLE_DATABASE
 403 #ifndef NCMPC_MINI
 404                          | MPD_IDLE_PLAYLIST
 405 #endif
 406                          ))
 407                 artist_repaint();
 408 }
 409
 410 static void
 411 add_query(struct mpdclient *c, enum mpd_tag_type table, char *_filter)
 412 {
 413         struct mpd_connection *connection = mpdclient_get_connection(c);
 414         char *str;
 415         struct filelist *addlist;
 416
 417         assert(filter != NULL);
 418
 419         str = utf8_to_locale(_filter);
 420         if (table == MPD_TAG_ALBUM)
 421                 screen_status_printf("Adding album %s...", str);
 422         else
 423                 screen_status_printf("Adding %s...", str);
 424         g_free(str);
 425
 426         mpd_search_db_songs(connection, true);
 427         mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
 428                                       table, _filter);
 429         mpd_search_commit(connection);
 430
 431         addlist = filelist_new_recv(connection);
 432
 433         if (mpd_response_finish(connection))
 434                 mpdclient_filelist_add_all(c, addlist);
 435         else
 436                 mpdclient_handle_error(c);
 437
 438         filelist_free(addlist);
 439 }
 440
 441 static int
 442 screen_artist_lw_cmd(struct mpdclient *c, command_t cmd)
 443 {
 444         switch (mode) {
 445         case LIST_ARTISTS:
 446         case LIST_ALBUMS:
 447                 return list_window_cmd(browser.lw, cmd);
 448
 449         case LIST_SONGS:
 450                 return browser_cmd(&browser, c, cmd);
 451         }
 452
 453         assert(0);
 454         return 0;
 455 }
 456
 457 static int
 458 string_array_find(GPtrArray *array, const char *value)
 459 {
 460         guint i;
 461
 462         for (i = 0; i < array->len; ++i)
 463                 if (strcmp((const char*)g_ptr_array_index(array, i),
 464                            value) == 0)
 465                         return i;
 466
 467         return -1;
 468 }
 469
 470 static bool
 471 screen_artist_cmd(struct mpdclient *c, command_t cmd)
 472 {
 473         struct list_window_range range;
 474         char *selected;
 475         char *old;
 476         int idx;
 477
 478         switch(cmd) {
 479         case CMD_PLAY:
 480                 switch (mode) {
 481                 case LIST_ARTISTS:
 482                         if (browser.lw->selected >= artist_list->len)
 483                                 return true;
 484
 485                         selected = g_ptr_array_index(artist_list,
 486                                                      browser.lw->selected);
 487                         open_album_list(c, g_strdup(selected));
 488                         list_window_reset(browser.lw);
 489
 490                         artist_repaint();
 491                         return true;
 492
 493                 case LIST_ALBUMS:
 494                         if (browser.lw->selected == 0) {
 495                                 /* handle ".." */
 496                                 old = g_strdup(artist);
 497
 498                                 open_artist_list(c);
 499                                 list_window_reset(browser.lw);
 500                                 /* restore previous list window state */
 501                                 idx = string_array_find(artist_list, old);
 502                                 g_free(old);
 503
 504                                 if (idx >= 0) {
 505                                         list_window_set_cursor(browser.lw, idx);
 506                                         list_window_center(browser.lw, idx);
 507                                 }
 508                         } else if (browser.lw->selected == album_list->len + 1) {
 509                                 /* handle "show all" */
 510                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 511                                 list_window_reset(browser.lw);
 512                         } else {
 513                                 /* select album */
 514                                 selected = g_ptr_array_index(album_list,
 515                                                              browser.lw->selected - 1);
 516                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 517                                 list_window_reset(browser.lw);
 518                         }
 519
 520                         artist_repaint();
 521                         return true;
 522
 523                 case LIST_SONGS:
 524                         if (browser.lw->selected == 0) {
 525                                 /* handle ".." */
 526                                 old = g_strdup(album);
 527
 528                                 open_album_list(c, g_strdup(artist));
 529                                 list_window_reset(browser.lw);
 530                                 /* restore previous list window state */
 531                                 idx = *old == 0
 532                                         ? (int)album_list->len
 533                                         : string_array_find(album_list, old);
 534                                 g_free(old);
 535
 536                                 if (idx >= 0) {
 537                                         ++idx;
 538                                         list_window_set_cursor(browser.lw, idx);
 539                                         list_window_center(browser.lw, idx);
 540                                 }
 541
 542                                 artist_repaint();
 543                                 return true;
 544                         }
 545                         break;
 546                 }
 547                 break;
 548
 549                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 550
 551         case CMD_GO_PARENT_DIRECTORY:
 552                 switch (mode) {
 553                 case LIST_ARTISTS:
 554                         break;
 555
 556                 case LIST_ALBUMS:
 557                         old = g_strdup(artist);
 558
 559                         open_artist_list(c);
 560                         list_window_reset(browser.lw);
 561                         /* restore previous list window state */
 562                         idx = string_array_find(artist_list, old);
 563                         g_free(old);
 564
 565                         if (idx >= 0) {
 566                                 list_window_set_cursor(browser.lw, idx);
 567                                 list_window_center(browser.lw, idx);
 568                         }
 569                         break;
 570
 571                 case LIST_SONGS:
 572                         old = g_strdup(album);
 573
 574                         open_album_list(c, g_strdup(artist));
 575                         list_window_reset(browser.lw);
 576                         /* restore previous list window state */
 577                         idx = *old == 0
 578                                 ? (int)album_list->len
 579                                 : string_array_find(album_list, old);
 580                         g_free(old);
 581
 582                         if (idx >= 0) {
 583                                 ++idx;
 584                                 list_window_set_cursor(browser.lw, idx);
 585                                 list_window_center(browser.lw, idx);
 586                         }
 587                         break;
 588                 }
 589
 590                 artist_repaint();
 591                 break;
 592
 593         case CMD_GO_ROOT_DIRECTORY:
 594                 switch (mode) {
 595                 case LIST_ARTISTS:
 596                         break;
 597
 598                 case LIST_ALBUMS:
 599                 case LIST_SONGS:
 600                         open_artist_list(c);
 601                         list_window_reset(browser.lw);
 602                         /* restore first list window state (pop while returning true) */
 603                         /* XXX */
 604                         break;
 605                 }
 606
 607                 artist_repaint();
 608                 break;
 609
 610         case CMD_SELECT:
 611         case CMD_ADD:
 612                 switch(mode) {
 613                 case LIST_ARTISTS:
 614                         if (browser.lw->selected >= artist_list->len)
 615                                 return true;
 616
 617                         list_window_get_range(browser.lw, &range);
 618                         for (unsigned i = range.start; i < range.end; ++i) {
 619                                 selected = g_ptr_array_index(artist_list, i);
 620                                 add_query(c, MPD_TAG_ARTIST, selected);
 621                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 622                         }
 623                         break;
 624
 625                 case LIST_ALBUMS:
 626                         list_window_get_range(browser.lw, &range);
 627                         for (unsigned i = range.start; i < range.end; ++i) {
 628                                 if(i == album_list->len + 1)
 629                                         add_query(c, MPD_TAG_ARTIST, artist);
 630                                 else if (i > 0)
 631                                 {
 632                                         selected = g_ptr_array_index(album_list,
 633                                                                      browser.lw->selected - 1);
 634                                         add_query(c, MPD_TAG_ALBUM, selected);
 635                                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 636                                 }
 637                         }
 638                         break;
 639
 640                 case LIST_SONGS:
 641                         /* handled by browser_cmd() */
 642                         break;
 643                 }
 644                 break;
 645
 646                 /* continue and update... */
 647         case CMD_SCREEN_UPDATE:
 648                 reload_lists(c);
 649                 return false;
 650
 651         case CMD_LIST_FIND:
 652         case CMD_LIST_RFIND:
 653         case CMD_LIST_FIND_NEXT:
 654         case CMD_LIST_RFIND_NEXT:
 655                 switch (mode) {
 656                 case LIST_ARTISTS:
 657                         screen_find(browser.lw, cmd,
 658                                     screen_artist_lw_callback, artist_list);
 659                         artist_repaint();
 660                         return true;
 661
 662                 case LIST_ALBUMS:
 663                         screen_find(browser.lw, cmd,
 664                                     screen_artist_lw_callback, album_list);
 665                         artist_repaint();
 666                         return true;
 667
 668                 case LIST_SONGS:
 669                         /* handled by browser_cmd() */
 670                         break;
 671                 }
 672         case CMD_LIST_JUMP:
 673                 switch (mode) {
 674                 case LIST_ARTISTS:
 675                         screen_jump(browser.lw, screen_artist_lw_callback,
 676                                     NULL, artist_list);
 677                         artist_repaint();
 678                         return true;
 679
 680                 case LIST_ALBUMS:
 681                         screen_jump(browser.lw, screen_artist_lw_callback,
 682                                     NULL, album_list);
 683                         artist_repaint();
 684                         return true;
 685
 686                 case LIST_SONGS:
 687                         /* handled by browser_cmd() */
 688                         break;
 689                 }
 690
 691                 break;
 692
 693         default:
 694                 break;
 695         }
 696
 697         if (screen_artist_lw_cmd(c, cmd)) {
 698                 if (screen_is_visible(&screen_artist))
 699                         artist_repaint();
 700                 return true;
 701         }
 702
 703         return false;
 704 }
 705
 706 const struct screen_functions screen_artist = {
 707         .init = screen_artist_init,
 708         .exit = screen_artist_quit,
 709         .open = screen_artist_open,
 710         .resize = screen_artist_resize,
 711         .paint = screen_artist_paint,
 712         .update = screen_artist_update,
 713         .cmd = screen_artist_cmd,
 714         .get_title = screen_artist_get_title,
 715 };