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 #include "gcc.h"
  30
  31 #include <ctype.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <glib.h>
  35 #include <ncurses.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, mpd_unused int *highlight, mpd_unused void *data)
  65 {
  66         GPtrArray *list = data;
  67         static char buf[BUFSIZE];
  68         char *str, *str_utf8;
  69
  70         if (mode == LIST_ALBUMS) {
  71                 if (idx == 0)
  72                         return "[..]";
  73                 else if (idx == list->len + 1) {
  74                         str = utf8_to_locale(_("All tracks"));
  75                         g_snprintf(buf, BUFSIZE, "[%s]", str);
  76                         g_free(str);
  77                         return buf;
  78                 }
  79
  80                 --idx;
  81         }
  82
  83         if (idx >= list->len)
  84                 return NULL;
  85
  86         str_utf8 = g_ptr_array_index(list, idx);
  87         assert(str_utf8 != NULL);
  88
  89         str = utf8_to_locale(str_utf8);
  90         g_snprintf(buf, BUFSIZE, "[%s]", str);
  91         g_free(str);
  92
  93         return buf;
  94 }
  95
  96 static void
  97 paint(mpdclient_t *c);
  98
  99 static void
 100 artist_repaint(void)
 101 {
 102         paint(NULL);
 103         wrefresh(browser.lw->w);
 104 }
 105
 106 static void
 107 artist_repaint_if_active(void)
 108 {
 109         if (screen_is_visible(&screen_artist))
 110                 artist_repaint();
 111 }
 112
 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
 122 static GPtrArray *
 123 g_list_to_ptr_array(GList *in)
 124 {
 125         GPtrArray *out = g_ptr_array_sized_new(g_list_length(in));
 126         GList *head = in;
 127
 128         while (in != NULL) {
 129                 g_ptr_array_add(out, in->data);
 130                 in = g_list_next(in);
 131         }
 132
 133         g_list_free(head);
 134         return out;
 135 }
 136
 137 static void
 138 string_array_free(GPtrArray *array)
 139 {
 140         unsigned i;
 141
 142         for (i = 0; i < array->len; ++i) {
 143                 char *value = g_ptr_array_index(array, i);
 144                 free(value);
 145         }
 146
 147         g_ptr_array_free(array, TRUE);
 148 }
 149
 150 static void
 151 free_lists(struct mpdclient *c)
 152 {
 153         if (artist_list != NULL) {
 154                 string_array_free(artist_list);
 155                 artist_list = NULL;
 156         }
 157
 158         if (album_list != NULL) {
 159                 string_array_free(album_list);
 160                 album_list = NULL;
 161         }
 162
 163         if (browser.filelist) {
 164                 if (c != NULL)
 165                         mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 166                 filelist_free(browser.filelist);
 167                 browser.filelist = NULL;
 168         }
 169 }
 170
 171 static void
 172 load_artist_list(struct mpdclient *c)
 173 {
 174         GList *list;
 175
 176         assert(mode == LIST_ARTISTS);
 177         assert(artist == NULL);
 178         assert(album == NULL);
 179         assert(artist_list == NULL);
 180         assert(album_list == NULL);
 181         assert(browser.filelist == NULL);
 182
 183         list = mpdclient_get_artists_utf8(c);
 184         /* sort list */
 185         list = g_list_sort(list, compare_utf8);
 186
 187         artist_list = g_list_to_ptr_array(list);
 188 }
 189
 190 static void
 191 load_album_list(struct mpdclient *c)
 192 {
 193         GList *list;
 194
 195         assert(mode == LIST_ALBUMS);
 196         assert(artist != NULL);
 197         assert(album == NULL);
 198         assert(album_list == NULL);
 199         assert(browser.filelist == NULL);
 200
 201         list = mpdclient_get_albums_utf8(c, artist);
 202         /* sort list */
 203         list = g_list_sort(list, compare_utf8);
 204
 205         album_list = g_list_to_ptr_array(list);
 206 }
 207
 208 static void
 209 load_song_list(struct mpdclient *c)
 210 {
 211         assert(mode == LIST_SONGS);
 212         assert(artist != NULL);
 213         assert(album != NULL);
 214         assert(browser.filelist == NULL);
 215
 216         if (album[0] == 0)
 217                 browser.filelist =
 218                         mpdclient_filelist_search_utf8(c, TRUE,
 219                                                        MPD_TABLE_ARTIST,
 220                                                        artist);
 221         else
 222                 browser.filelist =
 223                         mpdclient_filelist_search_utf8(c, TRUE,
 224                                                        MPD_TABLE_ALBUM,
 225                                                        album);
 226         if (browser.filelist == NULL)
 227                 browser.filelist = filelist_new(NULL);
 228
 229         /* add a dummy entry for ".." */
 230         filelist_prepend(browser.filelist, NULL);
 231
 232         /* install playlist callback and fix highlights */
 233         sync_highlights(c, browser.filelist);
 234         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 235 }
 236
 237 static void
 238 free_state(struct mpdclient *c)
 239 {
 240         g_free(artist);
 241         g_free(album);
 242         artist = NULL;
 243         album = NULL;
 244
 245         free_lists(c);
 246 }
 247
 248 static void
 249 open_artist_list(struct mpdclient *c)
 250 {
 251         free_state(c);
 252
 253         mode = LIST_ARTISTS;
 254         load_artist_list(c);
 255 }
 256
 257 static void
 258 open_album_list(struct mpdclient *c, char *_artist)
 259 {
 260         assert(_artist != NULL);
 261
 262         free_state(c);
 263
 264         mode = LIST_ALBUMS;
 265         artist = _artist;
 266         load_album_list(c);
 267 }
 268
 269 static void
 270 open_song_list(struct mpdclient *c, char *_artist, char *_album)
 271 {
 272         assert(_artist != NULL);
 273         assert(_album != NULL);
 274
 275         free_state(c);
 276
 277         mode = LIST_SONGS;
 278         artist = _artist;
 279         album = _album;
 280         load_song_list(c);
 281 }
 282
 283 static void
 284 reload_lists(struct mpdclient *c)
 285 {
 286         free_lists(c);
 287
 288         switch (mode) {
 289         case LIST_ARTISTS:
 290                 load_artist_list(c);
 291                 break;
 292
 293         case LIST_ALBUMS:
 294                 load_album_list(c);
 295                 break;
 296
 297         case LIST_SONGS:
 298                 load_song_list(c);
 299                 break;
 300         }
 301 }
 302
 303 /* db updated */
 304 static void
 305 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 306 {
 307         switch(event) {
 308         case BROWSE_DB_UPDATED:
 309                 reload_lists(c);
 310                 break;
 311         default:
 312                 break;
 313         }
 314
 315         artist_repaint_if_active();
 316 }
 317
 318 static void
 319 init(WINDOW *w, int cols, int rows)
 320 {
 321         browser.lw = list_window_init(w, cols, rows);
 322         browser.lw_state = list_window_init_state();
 323         artist = NULL;
 324         album = NULL;
 325 }
 326
 327 static void
 328 quit(void)
 329 {
 330         free_state(NULL);
 331         list_window_free(browser.lw);
 332         list_window_free_state(browser.lw_state);
 333 }
 334
 335 static void
 336 open(mpd_unused screen_t *screen, mpdclient_t *c)
 337 {
 338         static gboolean callback_installed = FALSE;
 339
 340         if (artist_list == NULL && album_list == NULL &&
 341             browser.filelist == NULL)
 342                 reload_lists(c);
 343         if (!callback_installed) {
 344                 mpdclient_install_browse_callback(c, browse_callback);
 345                 callback_installed = TRUE;
 346         }
 347 }
 348
 349 static void
 350 resize(int cols, int rows)
 351 {
 352         browser.lw->cols = cols;
 353         browser.lw->rows = rows;
 354 }
 355
 356 static void
 357 paint(mpd_unused mpdclient_t *c)
 358 {
 359         if (browser.filelist) {
 360                 list_window_paint(browser.lw, browser_lw_callback,
 361                                   browser.filelist);
 362         } else if (album_list != NULL)
 363                 list_window_paint(browser.lw, artist_lw_callback, album_list);
 364         else if (artist_list != NULL)
 365                 list_window_paint(browser.lw, artist_lw_callback, artist_list);
 366         else {
 367                 wmove(browser.lw->w, 0, 0);
 368                 wclrtobot(browser.lw->w);
 369         }
 370 }
 371
 372 static const char *
 373 get_title(char *str, size_t size)
 374 {
 375         char *s1, *s2;
 376
 377         switch(mode) {
 378         case LIST_ARTISTS:
 379                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 380                 break;
 381         case LIST_ALBUMS:
 382                 s1 = utf8_to_locale(artist);
 383                 g_snprintf(str, size,  _("Artist: %s"), s1);
 384                 g_free(s1);
 385                 break;
 386         case LIST_SONGS:
 387                 s1 = utf8_to_locale(artist);
 388                 s2 = *album == 0
 389                         ? g_strdup(_("All tracks"))
 390                         : utf8_to_locale(album);
 391                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 392                 g_free(s1);
 393                 g_free(s2);
 394                 break;
 395         }
 396         return str;
 397 }
 398
 399 static void
 400 add_query(mpdclient_t *c, int table, char *_filter)
 401 {
 402         char *str;
 403         mpdclient_filelist_t *addlist;
 404
 405         assert(filter != NULL);
 406
 407         str = utf8_to_locale(_filter);
 408         if (table== MPD_TABLE_ALBUM)
 409                 screen_status_printf("Adding album %s...", str);
 410         else
 411                 screen_status_printf("Adding %s...", str);
 412         g_free(str);
 413
 414         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 415         if (addlist) {
 416                 mpdclient_filelist_add_all(c, addlist);
 417                 filelist_free(addlist);
 418         }
 419 }
 420
 421 static unsigned
 422 metalist_length(void)
 423 {
 424         assert(mode != LIST_ARTISTS || artist_list != NULL);
 425         assert(mode != LIST_ALBUMS || album_list != NULL);
 426
 427         return mode == LIST_ALBUMS
 428                 ? album_list->len + 2
 429                 : artist_list->len;
 430 }
 431
 432 static int
 433 artist_lw_cmd(struct screen *screen, struct mpdclient *c, command_t cmd)
 434 {
 435         switch (mode) {
 436         case LIST_ARTISTS:
 437         case LIST_ALBUMS:
 438                 return list_window_cmd(browser.lw, metalist_length(), cmd);
 439
 440         case LIST_SONGS:
 441                 return browser_cmd(&browser, screen, c, cmd);
 442         }
 443
 444         assert(0);
 445         return 0;
 446 }
 447
 448 static int
 449 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 450 {
 451         char *selected;
 452
 453         switch(cmd) {
 454         case CMD_PLAY:
 455                 switch (mode) {
 456                 case LIST_ARTISTS:
 457                         selected = g_ptr_array_index(artist_list,
 458                                                      browser.lw->selected);
 459                         open_album_list(c, g_strdup(selected));
 460                         list_window_push_state(browser.lw_state, browser.lw);
 461
 462                         artist_repaint();
 463                         return true;
 464
 465                 case LIST_ALBUMS:
 466                         if (browser.lw->selected == 0) {
 467                                 /* handle ".." */
 468
 469                                 open_artist_list(c);
 470                                 list_window_reset(browser.lw);
 471                                 /* restore previous list window state */
 472                                 list_window_pop_state(browser.lw_state, browser.lw);
 473                         } else if (browser.lw->selected == album_list->len + 1) {
 474                                 /* handle "show all" */
 475                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 476                                 list_window_push_state(browser.lw_state, browser.lw);
 477                         } else {
 478                                 /* select album */
 479                                 selected = g_ptr_array_index(album_list,
 480                                                              browser.lw->selected - 1);
 481                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 482                                 list_window_push_state(browser.lw_state, browser.lw);
 483                         }
 484
 485                         artist_repaint();
 486                         return true;
 487
 488                 case LIST_SONGS:
 489                         if (browser.lw->selected == 0) {
 490                                 /* handle ".." */
 491
 492                                 open_album_list(c, g_strdup(artist));
 493                                 list_window_reset(browser.lw);
 494                                 /* restore previous list window state */
 495                                 list_window_pop_state(browser.lw_state,
 496                                                       browser.lw);
 497
 498                                 artist_repaint();
 499                                 return true;
 500                         }
 501                         break;
 502                 }
 503                 break;
 504
 505                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 506
 507         case CMD_GO_PARENT_DIRECTORY:
 508                 switch (mode) {
 509                 case LIST_ARTISTS:
 510                         break;
 511
 512                 case LIST_ALBUMS:
 513                         open_artist_list(c);
 514                         list_window_reset(browser.lw);
 515                         /* restore previous list window state */
 516                         list_window_pop_state(browser.lw_state, browser.lw);
 517                         break;
 518
 519                 case LIST_SONGS:
 520                         open_album_list(c, g_strdup(artist));
 521                         list_window_reset(browser.lw);
 522                         /* restore previous list window state */
 523                         list_window_pop_state(browser.lw_state, browser.lw);
 524                         break;
 525                 }
 526
 527                 artist_repaint();
 528                 break;
 529
 530         case CMD_GO_ROOT_DIRECTORY:
 531                 switch (mode) {
 532                 case LIST_ARTISTS:
 533                         break;
 534
 535                 case LIST_ALBUMS:
 536                 case LIST_SONGS:
 537                         open_artist_list(c);
 538                         list_window_reset(browser.lw);
 539                         /* restore first list window state (pop while returning true) */
 540                         while(list_window_pop_state(browser.lw_state, browser.lw));
 541                         break;
 542                 }
 543
 544                 artist_repaint();
 545                 break;
 546
 547         case CMD_SELECT:
 548         case CMD_ADD:
 549                 switch(mode) {
 550                 case LIST_ARTISTS:
 551                         selected = g_ptr_array_index(artist_list,
 552                                                      browser.lw->selected);
 553                         add_query(c, MPD_TABLE_ARTIST, selected);
 554                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 555                         break;
 556
 557                 case LIST_ALBUMS:
 558                         if (browser.lw->selected == album_list->len + 1)
 559                                 add_query(c, MPD_TABLE_ARTIST, artist);
 560                         else if (browser.lw->selected > 0) {
 561                                 selected = g_ptr_array_index(album_list,
 562                                                              browser.lw->selected - 1);
 563                                 add_query(c, MPD_TABLE_ALBUM, selected);
 564                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 565                         }
 566                         break;
 567
 568                 case LIST_SONGS:
 569                         /* handled by browser_cmd() */
 570                         break;
 571                 }
 572                 break;
 573
 574                 /* continue and update... */
 575         case CMD_SCREEN_UPDATE:
 576                 reload_lists(c);
 577                 screen_status_printf(_("Screen updated!"));
 578                 return 0;
 579
 580         case CMD_LIST_FIND:
 581         case CMD_LIST_RFIND:
 582         case CMD_LIST_FIND_NEXT:
 583         case CMD_LIST_RFIND_NEXT:
 584                 switch (mode) {
 585                 case LIST_ARTISTS:
 586                         screen_find(screen,
 587                                     browser.lw, artist_list->len,
 588                                     cmd, artist_lw_callback, artist_list);
 589                         artist_repaint();
 590                         return 1;
 591
 592                 case LIST_ALBUMS:
 593                         screen_find(screen,
 594                                     browser.lw, album_list->len + 2,
 595                                     cmd, artist_lw_callback, album_list);
 596                         artist_repaint();
 597                         return 1;
 598
 599                 case LIST_SONGS:
 600                         /* handled by browser_cmd() */
 601                         break;
 602                 }
 603
 604                 break;
 605
 606         default:
 607                 break;
 608         }
 609
 610         if (artist_lw_cmd(screen, c, cmd)) {
 611                 artist_repaint();
 612                 return 1;
 613         }
 614
 615         return 0;
 616 }
 617
 618 const struct screen_functions screen_artist = {
 619         .init = init,
 620         .exit = quit,
 621         .open = open,
 622         .resize = resize,
 623         .paint = paint,
 624         .cmd = artist_cmd,
 625         .get_title = get_title,
 626 };