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 "ncmpc.h"
  20 #include "options.h"
  21 #include "support.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 char *artist = NULL;
  43 static char *album  = NULL;
  44 static GPtrArray *metalist = 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         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 == metalist->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 >= metalist->len)
  83                 return NULL;
  84
  85         str_utf8 = g_ptr_array_index(metalist, 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(mpdclient_t *c);
  97
  98 static void
  99 artist_repaint(void)
 100 {
 101         paint(NULL);
 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 /* the playlist have been updated -> fix highlights */
 113 static void
 114 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 115 {
 116         browser_playlist_changed(&browser, c, event, data);
 117
 118         artist_repaint_if_active();
 119 }
 120
 121 static GPtrArray *
 122 g_list_to_ptr_array(GList *in)
 123 {
 124         GPtrArray *out = g_ptr_array_sized_new(g_list_length(in));
 125         GList *head = in;
 126
 127         while (in != NULL) {
 128                 g_ptr_array_add(out, in->data);
 129                 in = g_list_next(in);
 130         }
 131
 132         g_list_free(head);
 133         return out;
 134 }
 135
 136 static void
 137 string_array_free(GPtrArray *array)
 138 {
 139         unsigned i;
 140
 141         for (i = 0; i < array->len; ++i) {
 142                 char *value = g_ptr_array_index(array, i);
 143                 free(value);
 144         }
 145
 146         g_ptr_array_free(array, TRUE);
 147 }
 148
 149 static void
 150 free_lists(struct mpdclient *c)
 151 {
 152         if (metalist != NULL) {
 153                 string_array_free(metalist);
 154                 metalist = NULL;
 155         }
 156
 157         if (browser.filelist) {
 158                 if (c != NULL)
 159                         mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 160                 filelist_free(browser.filelist);
 161                 browser.filelist = NULL;
 162         }
 163 }
 164
 165 static void
 166 load_artist_list(struct mpdclient *c)
 167 {
 168         GList *list;
 169
 170         assert(mode == LIST_ARTISTS);
 171         assert(artist == NULL);
 172         assert(album == NULL);
 173         assert(metalist == NULL);
 174         assert(browser.filelist == NULL);
 175
 176         list = mpdclient_get_artists_utf8(c);
 177         /* sort list */
 178         list = g_list_sort(list, compare_utf8);
 179
 180         metalist = g_list_to_ptr_array(list);
 181 }
 182
 183 static void
 184 load_album_list(struct mpdclient *c)
 185 {
 186         GList *list;
 187
 188         assert(mode == LIST_ALBUMS);
 189         assert(artist != NULL);
 190         assert(album == NULL);
 191         assert(metalist == NULL);
 192         assert(browser.filelist == NULL);
 193
 194         list = mpdclient_get_albums_utf8(c, artist);
 195         /* sort list */
 196         list = g_list_sort(list, compare_utf8);
 197
 198         metalist = g_list_to_ptr_array(list);
 199 }
 200
 201 static void
 202 load_song_list(struct mpdclient *c)
 203 {
 204         assert(mode == LIST_SONGS);
 205         assert(artist != NULL);
 206         assert(album != NULL);
 207         assert(browser.filelist == NULL);
 208
 209         if (album[0] == 0) {
 210                 album = g_strdup(_("All tracks"));
 211                 browser.filelist =
 212                         mpdclient_filelist_search_utf8(c, TRUE,
 213                                                        MPD_TABLE_ARTIST,
 214                                                        artist);
 215         } else
 216                 browser.filelist =
 217                         mpdclient_filelist_search_utf8(c, TRUE,
 218                                                        MPD_TABLE_ALBUM,
 219                                                        album);
 220         if (browser.filelist == NULL)
 221                 browser.filelist = filelist_new(NULL);
 222
 223         /* add a dummy entry for ".." */
 224         filelist_prepend(browser.filelist, NULL);
 225
 226         /* install playlist callback and fix highlights */
 227         sync_highlights(c, browser.filelist);
 228         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 229 }
 230
 231 static void
 232 free_state(struct mpdclient *c)
 233 {
 234         g_free(artist);
 235         g_free(album);
 236         artist = NULL;
 237         album = NULL;
 238
 239         free_lists(c);
 240 }
 241
 242 static void
 243 open_artist_list(struct mpdclient *c)
 244 {
 245         free_state(c);
 246
 247         mode = LIST_ARTISTS;
 248         load_artist_list(c);
 249 }
 250
 251 static void
 252 open_album_list(struct mpdclient *c, char *_artist)
 253 {
 254         assert(_artist != NULL);
 255
 256         free_state(c);
 257
 258         mode = LIST_ALBUMS;
 259         artist = _artist;
 260         load_album_list(c);
 261 }
 262
 263 static void
 264 open_song_list(struct mpdclient *c, char *_artist, char *_album)
 265 {
 266         assert(_artist != NULL);
 267         assert(_album != NULL);
 268
 269         free_state(c);
 270
 271         mode = LIST_SONGS;
 272         artist = _artist;
 273         album = _album;
 274         load_song_list(c);
 275 }
 276
 277 static void
 278 reload_lists(struct mpdclient *c)
 279 {
 280         free_lists(c);
 281
 282         switch (mode) {
 283         case LIST_ARTISTS:
 284                 load_artist_list(c);
 285                 break;
 286
 287         case LIST_ALBUMS:
 288                 load_album_list(c);
 289                 break;
 290
 291         case LIST_SONGS:
 292                 load_song_list(c);
 293                 break;
 294         }
 295 }
 296
 297 /* db updated */
 298 static void
 299 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 300 {
 301         switch(event) {
 302         case BROWSE_DB_UPDATED:
 303                 D("screen_artist.c> browse_callback() [BROWSE_DB_UPDATED]\n");
 304                 reload_lists(c);
 305                 break;
 306         default:
 307                 break;
 308         }
 309
 310         artist_repaint_if_active();
 311 }
 312
 313 static void
 314 init(WINDOW *w, int cols, int rows)
 315 {
 316         browser.lw = list_window_init(w, cols, rows);
 317         browser.lw_state = list_window_init_state();
 318         artist = NULL;
 319         album = NULL;
 320 }
 321
 322 static void
 323 quit(void)
 324 {
 325         free_state(NULL);
 326         list_window_free(browser.lw);
 327         list_window_free_state(browser.lw_state);
 328 }
 329
 330 static void
 331 open(mpd_unused screen_t *screen, mpdclient_t *c)
 332 {
 333         static gboolean callback_installed = FALSE;
 334
 335         if (metalist == NULL && browser.filelist == NULL)
 336                 reload_lists(c);
 337         if (!callback_installed) {
 338                 mpdclient_install_browse_callback(c, browse_callback);
 339                 callback_installed = TRUE;
 340         }
 341 }
 342
 343 static void
 344 resize(int cols, int rows)
 345 {
 346         browser.lw->cols = cols;
 347         browser.lw->rows = rows;
 348 }
 349
 350 static void
 351 paint(mpd_unused mpdclient_t *c)
 352 {
 353         if (browser.filelist) {
 354                 list_window_paint(browser.lw, browser_lw_callback,
 355                                   browser.filelist);
 356         } else if (metalist) {
 357                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 358         } else {
 359                 wmove(browser.lw->w, 0, 0);
 360                 wclrtobot(browser.lw->w);
 361         }
 362 }
 363
 364 static const char *
 365 get_title(char *str, size_t size)
 366 {
 367         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 368         char *s2 = album ? utf8_to_locale(album) : NULL;
 369
 370         switch(mode) {
 371         case LIST_ARTISTS:
 372                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 373                 break;
 374         case LIST_ALBUMS:
 375                 g_snprintf(str, size,  _("Artist: %s"), s1);
 376                 break;
 377         case LIST_SONGS:
 378                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 379                 break;
 380         }
 381         g_free(s1);
 382         g_free(s2);
 383         return str;
 384 }
 385
 386 static void
 387 add_query(mpdclient_t *c, int table, char *_filter)
 388 {
 389         char *str;
 390         mpdclient_filelist_t *addlist;
 391
 392         assert(filter != NULL);
 393
 394         str = utf8_to_locale(_filter);
 395         if (table== MPD_TABLE_ALBUM)
 396                 screen_status_printf("Adding album %s...", str);
 397         else
 398                 screen_status_printf("Adding %s...", str);
 399         g_free(str);
 400
 401         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 402         if (addlist) {
 403                 mpdclient_filelist_add_all(c, addlist);
 404                 filelist_free(addlist);
 405         }
 406 }
 407
 408 static unsigned
 409 metalist_length(void)
 410 {
 411         assert(metalist != NULL);
 412
 413         return mode == LIST_ALBUMS
 414                 ? metalist->len + 2
 415                 : metalist->len;
 416 }
 417
 418 static int
 419 artist_lw_cmd(command_t cmd)
 420 {
 421         switch (mode) {
 422         case LIST_ARTISTS:
 423         case LIST_ALBUMS:
 424                 return list_window_cmd(browser.lw, metalist_length(), cmd);
 425
 426         case LIST_SONGS:
 427                 return list_window_cmd(browser.lw,
 428                                        filelist_length(browser.filelist),
 429                                        cmd);
 430         }
 431
 432         assert(0);
 433         return 0;
 434 }
 435
 436 static int
 437 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 438 {
 439         char *selected;
 440         int ret;
 441
 442         if (artist_lw_cmd(cmd)) {
 443                 artist_repaint();
 444                 wrefresh(browser.lw->w);
 445                 return 1;
 446         }
 447
 448         switch(cmd) {
 449         case CMD_PLAY:
 450                 switch (mode) {
 451                 case LIST_ARTISTS:
 452                         selected = g_ptr_array_index(metalist,
 453                                                      browser.lw->selected);
 454                         open_album_list(c, g_strdup(selected));
 455                         list_window_push_state(browser.lw_state, browser.lw);
 456
 457                         list_window_paint(browser.lw, artist_lw_callback, metalist);
 458                         wrefresh(browser.lw->w);
 459                         break;
 460
 461                 case LIST_ALBUMS:
 462                         if (browser.lw->selected == 0) {
 463                                 /* handle ".." */
 464
 465                                 open_artist_list(c);
 466                                 list_window_reset(browser.lw);
 467                                 /* restore previous list window state */
 468                                 list_window_pop_state(browser.lw_state, browser.lw);
 469                         } else if (browser.lw->selected == metalist->len + 1) {
 470                                 /* handle "show all" */
 471                                 open_song_list(c, g_strdup(artist), g_strdup("\0"));
 472                                 list_window_push_state(browser.lw_state, browser.lw);
 473                         } else {
 474                                 /* select album */
 475                                 selected = g_ptr_array_index(metalist,
 476                                                              browser.lw->selected - 1);
 477                                 open_song_list(c, g_strdup(artist), g_strdup(selected));
 478                                 list_window_push_state(browser.lw_state, browser.lw);
 479                         }
 480
 481                         artist_repaint();
 482                         break;
 483
 484                 case LIST_SONGS:
 485                         if (browser.lw->selected == 0) {
 486                                 /* handle ".." */
 487
 488                                 open_album_list(c, g_strdup(artist));
 489                                 list_window_reset(browser.lw);
 490                                 /* restore previous list window state */
 491                                 list_window_pop_state(browser.lw_state,
 492                                                       browser.lw);
 493
 494                                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 495                                 wrefresh(browser.lw->w);
 496                         } else
 497                                 browser_handle_enter(&browser, c);
 498                         break;
 499                 }
 500                 return 1;
 501
 502
 503                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 504
 505         case CMD_GO_PARENT_DIRECTORY:
 506                 switch (mode) {
 507                 case LIST_ARTISTS:
 508                         break;
 509
 510                 case LIST_ALBUMS:
 511                         open_artist_list(c);
 512                         list_window_reset(browser.lw);
 513                         /* restore previous list window state */
 514                         list_window_pop_state(browser.lw_state, browser.lw);
 515                         break;
 516
 517                 case LIST_SONGS:
 518                         open_album_list(c, g_strdup(artist));
 519                         list_window_reset(browser.lw);
 520                         /* restore previous list window state */
 521                         list_window_pop_state(browser.lw_state, browser.lw);
 522                         break;
 523                 }
 524
 525                 artist_repaint();
 526                 break;
 527
 528         case CMD_GO_ROOT_DIRECTORY:
 529                 switch (mode) {
 530                 case LIST_ARTISTS:
 531                         break;
 532
 533                 case LIST_ALBUMS:
 534                 case LIST_SONGS:
 535                         open_artist_list(c);
 536                         list_window_reset(browser.lw);
 537                         /* restore first list window state (pop while returning true) */
 538                         while(list_window_pop_state(browser.lw_state, browser.lw));
 539                         break;
 540                 }
 541
 542                 artist_repaint();
 543                 break;
 544
 545         case CMD_SELECT:
 546         case CMD_ADD:
 547                 switch(mode) {
 548                 case LIST_ARTISTS:
 549                         selected = g_ptr_array_index(metalist,
 550                                                      browser.lw->selected);
 551                         add_query(c, MPD_TABLE_ARTIST, selected);
 552                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 553                         break;
 554
 555                 case LIST_ALBUMS:
 556                         if (browser.lw->selected == metalist->len + 1)
 557                                 add_query(c, MPD_TABLE_ARTIST, artist);
 558                         else if (browser.lw->selected > 0) {
 559                                 selected = g_ptr_array_index(metalist,
 560                                                              browser.lw->selected - 1);
 561                                 add_query(c, MPD_TABLE_ALBUM, selected);
 562                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 563                         }
 564                         break;
 565
 566                 case LIST_SONGS:
 567                         ret = cmd == CMD_SELECT
 568                                 ? browser_handle_select(&browser, c)
 569                                 : browser_handle_add(&browser, c);
 570                         if (ret == 0)
 571                                 /* continue and select next item... */
 572                                 cmd = CMD_LIST_NEXT;
 573                         break;
 574                 }
 575                 break;
 576
 577                 /* continue and update... */
 578         case CMD_SCREEN_UPDATE:
 579                 reload_lists(c);
 580                 screen_status_printf(_("Screen updated!"));
 581                 return 0;
 582
 583         case CMD_LIST_FIND:
 584         case CMD_LIST_RFIND:
 585         case CMD_LIST_FIND_NEXT:
 586         case CMD_LIST_RFIND_NEXT:
 587                 if (browser.filelist)
 588                         screen_find(screen,
 589                                     browser.lw, filelist_length(browser.filelist),
 590                                     cmd, browser_lw_callback,
 591                                     browser.filelist);
 592                 else if (metalist)
 593                         screen_find(screen,
 594                                     browser.lw, metalist_length(),
 595                                     cmd, artist_lw_callback, metalist);
 596                 else
 597                         return 1;
 598
 599                 artist_repaint();
 600                 return 1;
 601
 602         case CMD_MOUSE_EVENT:
 603                 return browser_handle_mouse_event(&browser, c);
 604
 605         default:
 606                 break;
 607         }
 608
 609         return 0;
 610 }
 611
 612 const struct screen_functions screen_artist = {
 613         .init = init,
 614         .exit = quit,
 615         .open = open,
 616         .resize = resize,
 617         .paint = paint,
 618         .cmd = artist_cmd,
 619         .get_title = get_title,
 620 };