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_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 291 {
 292         char *selected;
 293         int ret;
 294
 295         if (browser.filelist == NULL && metalist != NULL &&
 296             list_window_cmd(browser.lw, metalist_length, cmd)) {
 297                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 298                 wrefresh(browser.lw->w);
 299                 return 1;
 300         }
 301
 302         switch(cmd) {
 303         case CMD_PLAY:
 304                 switch (mode) {
 305                 case LIST_ARTISTS:
 306                         selected = (char *) g_list_nth_data(metalist,
 307                                                             browser.lw->selected);
 308                         update_metalist(c, g_strdup(selected), NULL);
 309                         list_window_push_state(browser.lw_state, browser.lw);
 310
 311                         list_window_paint(browser.lw, artist_lw_callback, metalist);
 312                         wrefresh(browser.lw->w);
 313                         break;
 314
 315                 case LIST_ALBUMS:
 316                         if (browser.lw->selected == 0) {
 317                                 /* handle ".." */
 318
 319                                 update_metalist(c, NULL, NULL);
 320                                 list_window_reset(browser.lw);
 321                                 /* restore previous list window state */
 322                                 list_window_pop_state(browser.lw_state, browser.lw);
 323                         } else if (browser.lw->selected == metalist_length - 1) {
 324                                 /* handle "show all" */
 325                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 326                                 list_window_push_state(browser.lw_state, browser.lw);
 327                         } else {
 328                                 /* select album */
 329                                 selected = g_list_nth_data(metalist,
 330                                                            browser.lw->selected);
 331                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 332                                 list_window_push_state(browser.lw_state, browser.lw);
 333                         }
 334
 335                         artist_repaint();
 336                         break;
 337
 338                 case LIST_SONGS:
 339                         if (browser.lw->selected == 0) {
 340                                 /* handle ".." */
 341
 342                                 update_metalist(c, g_strdup(artist), NULL);
 343                                 list_window_reset(browser.lw);
 344                                 /* restore previous list window state */
 345                                 list_window_pop_state(browser.lw_state,
 346                                                       browser.lw);
 347
 348                                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 349                                 wrefresh(browser.lw->w);
 350                         } else
 351                                 browser_handle_enter(&browser, c);
 352                         break;
 353                 }
 354                 return 1;
 355
 356
 357                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 358
 359         case CMD_GO_PARENT_DIRECTORY:
 360                 switch (mode) {
 361                 case LIST_ARTISTS:
 362                         break;
 363
 364                 case LIST_ALBUMS:
 365                         update_metalist(c, NULL, NULL);
 366                         list_window_reset(browser.lw);
 367                         /* restore previous list window state */
 368                         list_window_pop_state(browser.lw_state, browser.lw);
 369                         break;
 370
 371                 case LIST_SONGS:
 372                         update_metalist(c, g_strdup(artist), NULL);
 373                         list_window_reset(browser.lw);
 374                         /* restore previous list window state */
 375                         list_window_pop_state(browser.lw_state, browser.lw);
 376                         break;
 377                 }
 378
 379                 artist_repaint();
 380                 break;
 381
 382         case CMD_GO_ROOT_DIRECTORY:
 383                 switch (mode) {
 384                 case LIST_ARTISTS:
 385                         break;
 386
 387                 case LIST_ALBUMS:
 388                 case LIST_SONGS:
 389                         update_metalist(c, NULL, NULL);
 390                         list_window_reset(browser.lw);
 391                         /* restore first list window state (pop while returning true) */
 392                         while(list_window_pop_state(browser.lw_state, browser.lw));
 393                         break;
 394                 }
 395
 396                 artist_repaint();
 397                 break;
 398
 399         case CMD_SELECT:
 400         case CMD_ADD:
 401                 switch(mode) {
 402                 case LIST_ARTISTS:
 403                         selected = g_list_nth_data(metalist,
 404                                                    browser.lw->selected);
 405                         if (selected == NULL)
 406                                 return 1;
 407
 408                         add_query(c, MPD_TABLE_ARTIST, selected);
 409                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 410                         break;
 411
 412                 case LIST_ALBUMS:
 413                         if (browser.lw->selected &&
 414                             browser.lw->selected == metalist_length - 1)
 415                                 add_query(c, MPD_TABLE_ARTIST, artist);
 416                         else if (browser.lw->selected > 0) {
 417                                 selected = g_list_nth_data(metalist,
 418                                                            browser.lw->selected);
 419                                 if (selected == NULL)
 420                                         return 1;
 421
 422                                 add_query(c, MPD_TABLE_ALBUM, selected);
 423                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 424                         }
 425                         break;
 426
 427                 case LIST_SONGS:
 428                         ret = cmd == CMD_SELECT
 429                                 ? browser_handle_select(&browser, c)
 430                                 : browser_handle_add(&browser, c);
 431                         if (ret == 0)
 432                                 /* continue and select next item... */
 433                                 cmd = CMD_LIST_NEXT;
 434                         break;
 435                 }
 436                 break;
 437
 438                 /* continue and update... */
 439         case CMD_SCREEN_UPDATE:
 440                 update_metalist(c, g_strdup(artist), g_strdup(album));
 441                 screen_status_printf(_("Screen updated!"));
 442                 return 0;
 443
 444         case CMD_LIST_FIND:
 445         case CMD_LIST_RFIND:
 446         case CMD_LIST_FIND_NEXT:
 447         case CMD_LIST_RFIND_NEXT:
 448                 if (browser.filelist)
 449                         screen_find(screen,
 450                                     browser.lw, filelist_length(browser.filelist),
 451                                     cmd, browser_lw_callback,
 452                                     browser.filelist);
 453                 else if (metalist)
 454                         screen_find(screen,
 455                                     browser.lw, metalist_length,
 456                                     cmd, artist_lw_callback, metalist);
 457                 else
 458                         return 1;
 459
 460                 artist_repaint();
 461                 return 1;
 462
 463         case CMD_MOUSE_EVENT:
 464                 return browser_handle_mouse_event(&browser, c);
 465
 466         default:
 467                 break;
 468         }
 469
 470         if (browser.filelist != NULL &&
 471             list_window_cmd(browser.lw, filelist_length(browser.filelist),
 472                             cmd)) {
 473                 list_window_paint(browser.lw, browser_lw_callback,
 474                                   browser.filelist);
 475                 wrefresh(browser.lw->w);
 476                 return 1;
 477         }
 478
 479         return 0;
 480 }
 481
 482 const struct screen_functions screen_artist = {
 483         .init = init,
 484         .exit = quit,
 485         .open = open,
 486         .resize = resize,
 487         .paint = paint,
 488         .cmd = artist_cmd,
 489         .get_title = get_title,
 490 };