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 unsigned metalist_length = 0;
  45 static GList *metalist = NULL;
  46
  47 static struct screen_browser browser;
  48
  49 static gint
  50 compare_utf8(gconstpointer s1, gconstpointer s2)
  51 {
  52         char *key1, *key2;
  53         int n;
  54
  55         key1 = g_utf8_collate_key(s1,-1);
  56         key2 = g_utf8_collate_key(s2,-1);
  57         n = strcmp(key1,key2);
  58         g_free(key1);
  59         g_free(key2);
  60         return n;
  61 }
  62
  63 /* list_window callback */
  64 static const char *
  65 artist_lw_callback(unsigned idx, mpd_unused int *highlight, mpd_unused void *data)
  66 {
  67         static char buf[BUFSIZE];
  68         char *str, *str_utf8;
  69
  70         if ((str_utf8 = (char *)g_list_nth_data(metalist, idx)) == NULL)
  71                 return NULL;
  72
  73         str = utf8_to_locale(str_utf8);
  74         g_snprintf(buf, BUFSIZE, "[%s]", str);
  75         g_free(str);
  76
  77         return buf;
  78 }
  79
  80 static void
  81 paint(mpdclient_t *c);
  82
  83 static void
  84 artist_repaint(void)
  85 {
  86         paint(NULL);
  87         wrefresh(browser.lw->w);
  88 }
  89
  90 static void
  91 artist_repaint_if_active(void)
  92 {
  93         if (screen_is_visible(&screen_artist))
  94                 artist_repaint();
  95 }
  96
  97 /* the playlist have been updated -> fix highlights */
  98 static void
  99 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 100 {
 101         browser_playlist_changed(&browser, c, event, data);
 102
 103         artist_repaint_if_active();
 104 }
 105
 106 /* fetch artists/albums/songs from mpd */
 107 static void
 108 update_metalist(mpdclient_t *c, char *m_artist, char *m_album)
 109 {
 110         g_free(artist);
 111         g_free(album);
 112         artist = NULL;
 113         album = NULL;
 114
 115         if (metalist)
 116                 metalist = string_list_free(metalist);
 117         if (browser.filelist) {
 118                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 119                 filelist_free(browser.filelist);
 120                 browser.filelist = NULL;
 121         }
 122
 123         if (m_album) {
 124                 /* retreive songs... */
 125                 artist = m_artist;
 126                 album = m_album;
 127                 if (album[0] == 0) {
 128                         album = g_strdup(_("All tracks"));
 129                         browser.filelist =
 130                                 mpdclient_filelist_search_utf8(c, TRUE,
 131                                                                MPD_TABLE_ARTIST,
 132                                                                artist);
 133                 } else
 134                         browser.filelist =
 135                                 mpdclient_filelist_search_utf8(c, TRUE,
 136                                                                MPD_TABLE_ALBUM,
 137                                                                album);
 138                 if (browser.filelist == NULL)
 139                         browser.filelist = filelist_new(NULL);
 140
 141                 /* add a dummy entry for ".." */
 142                 filelist_prepend(browser.filelist, NULL);
 143
 144                 /* install playlist callback and fix highlights */
 145                 sync_highlights(c, browser.filelist);
 146                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 147                 mode = LIST_SONGS;
 148         } else if (m_artist) {
 149                 /* retreive albums... */
 150
 151                 artist = m_artist;
 152                 metalist = mpdclient_get_albums_utf8(c, m_artist);
 153                 /* sort list */
 154                 metalist = g_list_sort(metalist, compare_utf8);
 155                 /* add a dummy entry for ".." */
 156                 metalist = g_list_insert(metalist, g_strdup(".."), 0);
 157                 /* add a dummy entry for all songs */
 158                 metalist = g_list_insert(metalist, g_strdup(_("All tracks")), -1);
 159                 mode = LIST_ALBUMS;
 160         } else {
 161                 /* retreive artists... */
 162
 163                 metalist = mpdclient_get_artists_utf8(c);
 164                 /* sort list */
 165                 metalist = g_list_sort(metalist, compare_utf8);
 166                 mode = LIST_ARTISTS;
 167         }
 168         metalist_length = g_list_length(metalist);
 169 }
 170
 171 /* db updated */
 172 static void
 173 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 174 {
 175         switch(event) {
 176         case BROWSE_DB_UPDATED:
 177                 D("screen_artist.c> browse_callback() [BROWSE_DB_UPDATED]\n");
 178                 update_metalist(c, g_strdup(artist), g_strdup(album));
 179                 break;
 180         default:
 181                 break;
 182         }
 183
 184         artist_repaint_if_active();
 185 }
 186
 187 static void
 188 init(WINDOW *w, int cols, int rows)
 189 {
 190         browser.lw = list_window_init(w, cols, rows);
 191         browser.lw_state = list_window_init_state();
 192         artist = NULL;
 193         album = NULL;
 194 }
 195
 196 static void
 197 quit(void)
 198 {
 199         if (browser.filelist)
 200                 filelist_free(browser.filelist);
 201         if (metalist)
 202                 string_list_free(metalist);
 203         g_free(artist);
 204         g_free(album);
 205         artist = NULL;
 206         album = NULL;
 207         list_window_free(browser.lw);
 208         list_window_free_state(browser.lw_state);
 209 }
 210
 211 static void
 212 open(mpd_unused screen_t *screen, mpdclient_t *c)
 213 {
 214         static gboolean callback_installed = FALSE;
 215
 216         if (metalist == NULL && browser.filelist == NULL)
 217                 update_metalist(c, NULL, NULL);
 218         if (!callback_installed) {
 219                 mpdclient_install_browse_callback(c, browse_callback);
 220                 callback_installed = TRUE;
 221         }
 222 }
 223
 224 static void
 225 resize(int cols, int rows)
 226 {
 227         browser.lw->cols = cols;
 228         browser.lw->rows = rows;
 229 }
 230
 231 static void
 232 paint(mpd_unused mpdclient_t *c)
 233 {
 234         if (browser.filelist) {
 235                 list_window_paint(browser.lw, browser_lw_callback,
 236                                   browser.filelist);
 237         } else if (metalist) {
 238                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 239         } else {
 240                 wmove(browser.lw->w, 0, 0);
 241                 wclrtobot(browser.lw->w);
 242         }
 243 }
 244
 245 static const char *
 246 get_title(char *str, size_t size)
 247 {
 248         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 249         char *s2 = album ? utf8_to_locale(album) : NULL;
 250
 251         switch(mode) {
 252         case LIST_ARTISTS:
 253                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 254                 break;
 255         case LIST_ALBUMS:
 256                 g_snprintf(str, size,  _("Artist: %s"), s1);
 257                 break;
 258         case LIST_SONGS:
 259                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 260                 break;
 261         }
 262         g_free(s1);
 263         g_free(s2);
 264         return str;
 265 }
 266
 267 static void
 268 add_query(mpdclient_t *c, int table, char *_filter)
 269 {
 270         char *str;
 271         mpdclient_filelist_t *addlist;
 272
 273         assert(filter != NULL);
 274
 275         str = utf8_to_locale(_filter);
 276         if (table== MPD_TABLE_ALBUM)
 277                 screen_status_printf("Adding album %s...", str);
 278         else
 279                 screen_status_printf("Adding %s...", str);
 280         g_free(str);
 281
 282         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 283         if (addlist) {
 284                 mpdclient_filelist_add_all(c, addlist);
 285                 filelist_free(addlist);
 286         }
 287 }
 288
 289 static int
 290 artist_lw_cmd(command_t cmd)
 291 {
 292         switch (mode) {
 293         case LIST_ARTISTS:
 294         case LIST_ALBUMS:
 295                 return list_window_cmd(browser.lw, metalist_length, cmd);
 296
 297         case LIST_SONGS:
 298                 return list_window_cmd(browser.lw,
 299                                        filelist_length(browser.filelist),
 300                                        cmd);
 301         }
 302
 303         assert(0);
 304         return 0;
 305 }
 306
 307 static int
 308 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 309 {
 310         char *selected;
 311         int ret;
 312
 313         if (artist_lw_cmd(cmd)) {
 314                 artist_repaint();
 315                 wrefresh(browser.lw->w);
 316                 return 1;
 317         }
 318
 319         switch(cmd) {
 320         case CMD_PLAY:
 321                 switch (mode) {
 322                 case LIST_ARTISTS:
 323                         selected = (char *) g_list_nth_data(metalist,
 324                                                             browser.lw->selected);
 325                         update_metalist(c, g_strdup(selected), NULL);
 326                         list_window_push_state(browser.lw_state, browser.lw);
 327
 328                         list_window_paint(browser.lw, artist_lw_callback, metalist);
 329                         wrefresh(browser.lw->w);
 330                         break;
 331
 332                 case LIST_ALBUMS:
 333                         if (browser.lw->selected == 0) {
 334                                 /* handle ".." */
 335
 336                                 update_metalist(c, NULL, NULL);
 337                                 list_window_reset(browser.lw);
 338                                 /* restore previous list window state */
 339                                 list_window_pop_state(browser.lw_state, browser.lw);
 340                         } else if (browser.lw->selected == metalist_length - 1) {
 341                                 /* handle "show all" */
 342                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 343                                 list_window_push_state(browser.lw_state, browser.lw);
 344                         } else {
 345                                 /* select album */
 346                                 selected = g_list_nth_data(metalist,
 347                                                            browser.lw->selected);
 348                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 349                                 list_window_push_state(browser.lw_state, browser.lw);
 350                         }
 351
 352                         artist_repaint();
 353                         break;
 354
 355                 case LIST_SONGS:
 356                         if (browser.lw->selected == 0) {
 357                                 /* handle ".." */
 358
 359                                 update_metalist(c, g_strdup(artist), NULL);
 360                                 list_window_reset(browser.lw);
 361                                 /* restore previous list window state */
 362                                 list_window_pop_state(browser.lw_state,
 363                                                       browser.lw);
 364
 365                                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 366                                 wrefresh(browser.lw->w);
 367                         } else
 368                                 browser_handle_enter(&browser, c);
 369                         break;
 370                 }
 371                 return 1;
 372
 373
 374                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 375
 376         case CMD_GO_PARENT_DIRECTORY:
 377                 switch (mode) {
 378                 case LIST_ARTISTS:
 379                         break;
 380
 381                 case LIST_ALBUMS:
 382                         update_metalist(c, NULL, NULL);
 383                         list_window_reset(browser.lw);
 384                         /* restore previous list window state */
 385                         list_window_pop_state(browser.lw_state, browser.lw);
 386                         break;
 387
 388                 case LIST_SONGS:
 389                         update_metalist(c, g_strdup(artist), NULL);
 390                         list_window_reset(browser.lw);
 391                         /* restore previous list window state */
 392                         list_window_pop_state(browser.lw_state, browser.lw);
 393                         break;
 394                 }
 395
 396                 artist_repaint();
 397                 break;
 398
 399         case CMD_GO_ROOT_DIRECTORY:
 400                 switch (mode) {
 401                 case LIST_ARTISTS:
 402                         break;
 403
 404                 case LIST_ALBUMS:
 405                 case LIST_SONGS:
 406                         update_metalist(c, NULL, NULL);
 407                         list_window_reset(browser.lw);
 408                         /* restore first list window state (pop while returning true) */
 409                         while(list_window_pop_state(browser.lw_state, browser.lw));
 410                         break;
 411                 }
 412
 413                 artist_repaint();
 414                 break;
 415
 416         case CMD_SELECT:
 417         case CMD_ADD:
 418                 switch(mode) {
 419                 case LIST_ARTISTS:
 420                         selected = g_list_nth_data(metalist,
 421                                                    browser.lw->selected);
 422                         if (selected == NULL)
 423                                 return 1;
 424
 425                         add_query(c, MPD_TABLE_ARTIST, selected);
 426                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 427                         break;
 428
 429                 case LIST_ALBUMS:
 430                         if (browser.lw->selected &&
 431                             browser.lw->selected == metalist_length - 1)
 432                                 add_query(c, MPD_TABLE_ARTIST, artist);
 433                         else if (browser.lw->selected > 0) {
 434                                 selected = g_list_nth_data(metalist,
 435                                                            browser.lw->selected);
 436                                 if (selected == NULL)
 437                                         return 1;
 438
 439                                 add_query(c, MPD_TABLE_ALBUM, selected);
 440                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 441                         }
 442                         break;
 443
 444                 case LIST_SONGS:
 445                         ret = cmd == CMD_SELECT
 446                                 ? browser_handle_select(&browser, c)
 447                                 : browser_handle_add(&browser, c);
 448                         if (ret == 0)
 449                                 /* continue and select next item... */
 450                                 cmd = CMD_LIST_NEXT;
 451                         break;
 452                 }
 453                 break;
 454
 455                 /* continue and update... */
 456         case CMD_SCREEN_UPDATE:
 457                 update_metalist(c, g_strdup(artist), g_strdup(album));
 458                 screen_status_printf(_("Screen updated!"));
 459                 return 0;
 460
 461         case CMD_LIST_FIND:
 462         case CMD_LIST_RFIND:
 463         case CMD_LIST_FIND_NEXT:
 464         case CMD_LIST_RFIND_NEXT:
 465                 if (browser.filelist)
 466                         screen_find(screen,
 467                                     browser.lw, filelist_length(browser.filelist),
 468                                     cmd, browser_lw_callback,
 469                                     browser.filelist);
 470                 else if (metalist)
 471                         screen_find(screen,
 472                                     browser.lw, metalist_length,
 473                                     cmd, artist_lw_callback, metalist);
 474                 else
 475                         return 1;
 476
 477                 artist_repaint();
 478                 return 1;
 479
 480         case CMD_MOUSE_EVENT:
 481                 return browser_handle_mouse_event(&browser, c);
 482
 483         default:
 484                 break;
 485         }
 486
 487         return 0;
 488 }
 489
 490 const struct screen_functions screen_artist = {
 491         .init = init,
 492         .exit = quit,
 493         .open = open,
 494         .resize = resize,
 495         .paint = paint,
 496         .cmd = artist_cmd,
 497         .get_title = get_title,
 498 };