src/screen_artist.c

   1 /*
   2  * (c) 2005 by Kalle Wallin <kaw@linux.se>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "i18n.h"
  20 #include "options.h"
  21 #include "charset.h"
  22 #include "mpdclient.h"
  23 #include "utils.h"
  24 #include "strfsong.h"
  25 #include "command.h"
  26 #include "screen.h"
  27 #include "screen_utils.h"
  28 #include "screen_browser.h"
  29
  30 #include <ctype.h>
  31 #include <stdlib.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 artist_lw_callback(unsigned idx, G_GNUC_UNUSED int *highlight,
  63                    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 paint(void);
  97
  98 static void
  99 artist_repaint(void)
 100 {
 101         paint();
 102         wrefresh(browser.lw->w);
 103 }
 104
 105 static void
 106 artist_repaint_if_active(void)
 107 {
 108         if (screen_is_visible(&screen_artist))
 109                 artist_repaint();
 110 }
 111
 112 #ifndef NCMPC_MINI
 113 /* the playlist have been updated -> fix highlights */
 114 static void
 115 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 116 {
 117         browser_playlist_changed(&browser, c, event, data);
 118
 119         artist_repaint_if_active();
 120 }
 121 #endif
 122
 123 static GPtrArray *
 124 g_list_to_ptr_array(GList *in)
 125 {
 126         GPtrArray *out = g_ptr_array_sized_new(g_list_length(in));
 127         GList *head = in;
 128
 129         while (in != NULL) {
 130                 g_ptr_array_add(out, in->data);
 131                 in = g_list_next(in);
 132         }
 133
 134         g_list_free(head);
 135         return out;
 136 }
 137
 138 static void
 139 string_array_free(GPtrArray *array)
 140 {
 141         unsigned i;
 142
 143         for (i = 0; i < array->len; ++i) {
 144                 char *value = g_ptr_array_index(array, i);
 145                 free(value);
 146         }
 147
 148         g_ptr_array_free(array, TRUE);
 149 }
 150
 151 static void
 152 free_lists(G_GNUC_UNUSED struct mpdclient *c)
 153 {
 154         if (artist_list != NULL) {
 155                 string_array_free(artist_list);
 156                 artist_list = NULL;
 157         }
 158
 159         if (album_list != NULL) {
 160                 string_array_free(album_list);
 161                 album_list = NULL;
 162         }
 163
 164         if (browser.filelist) {
 165 #ifndef NCMPC_MINI
 166                 if (c != NULL)
 167                         mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 168 #endif
 169                 filelist_free(browser.filelist);
 170                 browser.filelist = NULL;
 171         }
 172 }
 173
 174 static void
 175 load_artist_list(struct mpdclient *c)
 176 {
 177         GList *list;
 178
 179         assert(mode == LIST_ARTISTS);
 180         assert(artist == NULL);
 181         assert(album == NULL);
 182         assert(artist_list == NULL);
 183         assert(album_list == NULL);
 184         assert(browser.filelist == NULL);
 185
 186         list = mpdclient_get_artists(c);
 187         /* sort list */
 188         list = g_list_sort(list, compare_utf8);
 189
 190         artist_list = g_list_to_ptr_array(list);
 191 }
 192
 193 static void
 194 load_album_list(struct mpdclient *c)
 195 {
 196         GList *list;
 197
 198         assert(mode == LIST_ALBUMS);
 199         assert(artist != NULL);
 200         assert(album == NULL);
 201         assert(album_list == NULL);
 202         assert(browser.filelist == NULL);
 203
 204         list = mpdclient_get_albums(c, artist);
 205         /* sort list */
 206         list = g_list_sort(list, compare_utf8);
 207
 208         album_list = g_list_to_ptr_array(list);
 209 }
 210
 211 static void
 212 load_song_list(struct mpdclient *c)
 213 {
 214         assert(mode == LIST_SONGS);
 215         assert(artist != NULL);
 216         assert(album != NULL);
 217         assert(browser.filelist == NULL);
 218
 219         if (album[0] == 0)
 220                 browser.filelist =
 221                         mpdclient_filelist_search(c, TRUE,
 222                                                   MPD_TABLE_ARTIST,
 223                                                   artist);
 224         else
 225                 browser.filelist =
 226                         mpdclient_filelist_search(c, TRUE,
 227                                                   MPD_TABLE_ALBUM,
 228                                                   album);
 229         if (browser.filelist == NULL)
 230                 browser.filelist = filelist_new(NULL);
 231
 232         /* add a dummy entry for ".." */
 233         filelist_prepend(browser.filelist, NULL);
 234
 235 #ifndef NCMPC_MINI
 236         /* install playlist callback and fix highlights */
 237         sync_highlights(c, browser.filelist);
 238         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 239 #endif
 240 }
 241
 242 static void
 243 free_state(struct mpdclient *c)
 244 {
 245         g_free(artist);
 246         g_free(album);
 247         artist = NULL;
 248         album = NULL;
 249
 250         free_lists(c);
 251 }
 252
 253 static void
 254 open_artist_list(struct mpdclient *c)
 255 {
 256         free_state(c);
 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(c);
 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(c);
 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(c);
 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 /* db updated */
 309 static void
 310 browse_callback(mpdclient_t *c, int event, G_GNUC_UNUSED gpointer data)
 311 {
 312         switch(event) {
 313         case BROWSE_DB_UPDATED:
 314                 reload_lists(c);
 315                 break;
 316         default:
 317                 break;
 318         }
 319
 320         artist_repaint_if_active();
 321 }
 322
 323 static void
 324 init(WINDOW *w, int cols, int rows)
 325 {
 326         browser.lw = list_window_init(w, cols, rows);
 327         artist = NULL;
 328         album = NULL;
 329 }
 330
 331 static void
 332 quit(void)
 333 {
 334         free_state(NULL);
 335         list_window_free(browser.lw);
 336 }
 337
 338 static void
 339 open(mpdclient_t *c)
 340 {
 341         static gboolean callback_installed = FALSE;
 342
 343         if (artist_list == NULL && album_list == NULL &&
 344             browser.filelist == NULL)
 345                 reload_lists(c);
 346         if (!callback_installed) {
 347                 mpdclient_install_browse_callback(c, browse_callback);
 348                 callback_installed = TRUE;
 349         }
 350 }
 351
 352 static void
 353 resize(int cols, int rows)
 354 {
 355         browser.lw->cols = cols;
 356         browser.lw->rows = rows;
 357 }
 358
 359 static void
 360 paint(void)
 361 {
 362         if (browser.filelist) {
 363                 list_window_paint(browser.lw, browser_lw_callback,
 364                                   browser.filelist);
 365         } else if (album_list != NULL)
 366                 list_window_paint(browser.lw, artist_lw_callback, album_list);
 367         else if (artist_list != NULL)
 368                 list_window_paint(browser.lw, artist_lw_callback, artist_list);
 369         else {
 370                 wmove(browser.lw->w, 0, 0);
 371                 wclrtobot(browser.lw->w);
 372         }
 373 }
 374
 375 static const char *
 376 get_title(char *str, size_t size)
 377 {
 378         char *s1, *s2;
 379
 380         switch(mode) {
 381         case LIST_ARTISTS:
 382                 g_snprintf(str, size, _("All artists"));
 383                 break;
 384
 385         case LIST_ALBUMS:
 386                 s1 = utf8_to_locale(artist);
 387                 g_snprintf(str, size, _("Albums of artist: %s"), s1);
 388                 g_free(s1);
 389                 break;
 390
 391         case LIST_SONGS:
 392                 s1 = utf8_to_locale(artist);
 393                 if (*album != 0) {
 394                         s2 = utf8_to_locale(album);
 395                         g_snprintf(str, size,
 396                                    _("Album: %s - %s"), s1, s2);
 397                         g_free(s2);
 398                 } else
 399                         g_snprintf(str, size,
 400                                    _("All tracks of artist: %s"), s1);
 401                 g_free(s1);
 402                 break;
 403         }
 404
 405         return str;
 406 }
 407
 408 static void
 409 add_query(mpdclient_t *c, int table, char *_filter)
 410 {
 411         char *str;
 412         mpdclient_filelist_t *addlist;
 413
 414         assert(filter != NULL);
 415
 416         str = utf8_to_locale(_filter);
 417         if (table== MPD_TABLE_ALBUM)
 418                 screen_status_printf("Adding album %s...", str);
 419         else
 420                 screen_status_printf("Adding %s...", str);
 421         g_free(str);
 422
 423         addlist = mpdclient_filelist_search(c, TRUE, table, _filter);
 424         if (addlist) {
 425                 mpdclient_filelist_add_all(c, addlist);
 426                 filelist_free(addlist);
 427         }
 428 }
 429
 430 static unsigned
 431 metalist_length(void)
 432 {
 433         assert(mode != LIST_ARTISTS || artist_list != NULL);
 434         assert(mode != LIST_ALBUMS || album_list != NULL);
 435
 436         return mode == LIST_ALBUMS
 437                 ? album_list->len + 2
 438                 : artist_list->len;
 439 }
 440
 441 static int
 442 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, metalist_length(), 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 artist_cmd(mpdclient_t *c, command_t cmd)
 472 {
 473         char *selected;
 474         char *old;
 475         int idx;
 476
 477         switch(cmd) {
 478         case CMD_PLAY:
 479                 switch (mode) {
 480                 case LIST_ARTISTS:
 481                         selected = g_ptr_array_index(artist_list,
 482                                                      browser.lw->selected);
 483                         open_album_list(c, g_strdup(selected));
 484                         list_window_reset(browser.lw);
 485
 486                         artist_repaint();
 487                         return true;
 488
 489                 case LIST_ALBUMS:
 490                         if (browser.lw->selected == 0) {
 491                                 /* handle ".." */
 492                                 old = g_strdup(artist);
 493
 494                                 open_artist_list(c);
 495                                 list_window_reset(browser.lw);
 496                                 /* restore previous list window state */
 497                                 idx = string_array_find(artist_list, old);
 498                                 g_free(old);
 499
 500                                 if (idx >= 0) {
 501                                         list_window_set_selected(browser.lw, idx);
 502                                         list_window_center(browser.lw,
 503                                                            artist_list->len, idx);
 504                                 }
 505                         } else if (browser.lw->selected == album_list->len + 1) {
 506                                 /* handle "show all" */
 507                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 508                                 list_window_reset(browser.lw);
 509                         } else {
 510                                 /* select album */
 511                                 selected = g_ptr_array_index(album_list,
 512                                                              browser.lw->selected - 1);
 513                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 514                                 list_window_reset(browser.lw);
 515                         }
 516
 517                         artist_repaint();
 518                         return true;
 519
 520                 case LIST_SONGS:
 521                         if (browser.lw->selected == 0) {
 522                                 /* handle ".." */
 523                                 old = g_strdup(album);
 524
 525                                 open_album_list(c, g_strdup(artist));
 526                                 list_window_reset(browser.lw);
 527                                 /* restore previous list window state */
 528                                 idx = *old == 0
 529                                         ? (int)album_list->len
 530                                         : string_array_find(album_list, old);
 531                                 g_free(old);
 532
 533                                 if (idx >= 0) {
 534                                         ++idx;
 535                                         list_window_set_selected(browser.lw, idx);
 536                                         list_window_center(browser.lw,
 537                                                            album_list->len, idx);
 538                                 }
 539
 540                                 artist_repaint();
 541                                 return true;
 542                         }
 543                         break;
 544                 }
 545                 break;
 546
 547                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 548
 549         case CMD_GO_PARENT_DIRECTORY:
 550                 switch (mode) {
 551                 case LIST_ARTISTS:
 552                         break;
 553
 554                 case LIST_ALBUMS:
 555                         old = g_strdup(artist);
 556
 557                         open_artist_list(c);
 558                         list_window_reset(browser.lw);
 559                         /* restore previous list window state */
 560                         idx = string_array_find(artist_list, old);
 561                         g_free(old);
 562
 563                         if (idx >= 0) {
 564                                 list_window_set_selected(browser.lw, idx);
 565                                 list_window_center(browser.lw,
 566                                                    artist_list->len, idx);
 567                         }
 568                         break;
 569
 570                 case LIST_SONGS:
 571                         old = g_strdup(album);
 572
 573                         open_album_list(c, g_strdup(artist));
 574                         list_window_reset(browser.lw);
 575                         /* restore previous list window state */
 576                         idx = *old == 0
 577                                 ? (int)album_list->len
 578                                 : string_array_find(album_list, old);
 579                         g_free(old);
 580
 581                         if (idx >= 0) {
 582                                 ++idx;
 583                                 list_window_set_selected(browser.lw, idx);
 584                                 list_window_center(browser.lw,
 585                                                    album_list->len, 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                         selected = g_ptr_array_index(artist_list,
 615                                                      browser.lw->selected);
 616                         add_query(c, MPD_TABLE_ARTIST, selected);
 617                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 618                         break;
 619
 620                 case LIST_ALBUMS:
 621                         if (browser.lw->selected == album_list->len + 1)
 622                                 add_query(c, MPD_TABLE_ARTIST, artist);
 623                         else if (browser.lw->selected > 0) {
 624                                 selected = g_ptr_array_index(album_list,
 625                                                              browser.lw->selected - 1);
 626                                 add_query(c, MPD_TABLE_ALBUM, selected);
 627                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 628                         }
 629                         break;
 630
 631                 case LIST_SONGS:
 632                         /* handled by browser_cmd() */
 633                         break;
 634                 }
 635                 break;
 636
 637                 /* continue and update... */
 638         case CMD_SCREEN_UPDATE:
 639                 reload_lists(c);
 640                 return false;
 641
 642         case CMD_LIST_FIND:
 643         case CMD_LIST_RFIND:
 644         case CMD_LIST_FIND_NEXT:
 645         case CMD_LIST_RFIND_NEXT:
 646                 switch (mode) {
 647                 case LIST_ARTISTS:
 648                         screen_find(browser.lw, artist_list->len,
 649                                     cmd, artist_lw_callback, artist_list);
 650                         artist_repaint();
 651                         return true;
 652
 653                 case LIST_ALBUMS:
 654                         screen_find(browser.lw, album_list->len + 2,
 655                                     cmd, artist_lw_callback, album_list);
 656                         artist_repaint();
 657                         return true;
 658
 659                 case LIST_SONGS:
 660                         /* handled by browser_cmd() */
 661                         break;
 662                 }
 663
 664                 break;
 665
 666         default:
 667                 break;
 668         }
 669
 670         if (artist_lw_cmd(c, cmd)) {
 671                 if (screen_is_visible(&screen_artist))
 672                         artist_repaint();
 673                 return true;
 674         }
 675
 676         return false;
 677 }
 678
 679 const struct screen_functions screen_artist = {
 680         .init = init,
 681         .exit = quit,
 682         .open = open,
 683         .resize = resize,
 684         .paint = paint,
 685         .cmd = artist_cmd,
 686         .get_title = get_title,
 687 };