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 "config.h"
  20
  21 #ifndef DISABLE_ARTIST_SCREEN
  22 #include "ncmpc.h"
  23 #include "options.h"
  24 #include "support.h"
  25 #include "mpdclient.h"
  26 #include "utils.h"
  27 #include "strfsong.h"
  28 #include "command.h"
  29 #include "screen.h"
  30 #include "screen_utils.h"
  31 #include "screen_browser.h"
  32 #include "gcc.h"
  33
  34 #include <ctype.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <glib.h>
  38 #include <ncurses.h>
  39
  40 #define BUFSIZE 1024
  41
  42 typedef enum { LIST_ARTISTS, LIST_ALBUMS, LIST_SONGS } artist_mode_t;
  43
  44 static artist_mode_t mode = LIST_ARTISTS;
  45 static char *artist = NULL;
  46 static char *album  = NULL;
  47 static unsigned metalist_length = 0;
  48 static GList *metalist = NULL;
  49
  50 static struct screen_browser browser;
  51
  52 static gint
  53 compare_utf8(gconstpointer s1, gconstpointer s2)
  54 {
  55         char *key1, *key2;
  56         int n;
  57
  58         key1 = g_utf8_collate_key(s1,-1);
  59         key2 = g_utf8_collate_key(s2,-1);
  60         n = strcmp(key1,key2);
  61         g_free(key1);
  62         g_free(key2);
  63         return n;
  64 }
  65
  66 /* list_window callback */
  67 static const char *
  68 artist_lw_callback(unsigned idx, mpd_unused int *highlight, mpd_unused void *data)
  69 {
  70         static char buf[BUFSIZE];
  71         char *str, *str_utf8;
  72
  73         if ((str_utf8 = (char *)g_list_nth_data(metalist, idx)) == NULL)
  74                 return NULL;
  75
  76         str = utf8_to_locale(str_utf8);
  77         g_snprintf(buf, BUFSIZE, "[%s]", str);
  78         g_free(str);
  79
  80         return buf;
  81 }
  82
  83 /* the playlist have been updated -> fix highlights */
  84 static void
  85 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
  86 {
  87         browser_playlist_changed(&browser, c, event, data);
  88 }
  89
  90 /* fetch artists/albums/songs from mpd */
  91 static void
  92 update_metalist(mpdclient_t *c, char *m_artist, char *m_album)
  93 {
  94         g_free(artist);
  95         g_free(album);
  96         artist = NULL;
  97         album = NULL;
  98
  99         if (metalist)
 100                 metalist = string_list_free(metalist);
 101         if (browser.filelist) {
 102                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 103                 filelist_free(browser.filelist);
 104                 browser.filelist = NULL;
 105         }
 106
 107         if (m_album) {
 108                 /* retreive songs... */
 109                 artist = m_artist;
 110                 album = m_album;
 111                 if (album[0] == 0) {
 112                         album = g_strdup(_("All tracks"));
 113                         browser.filelist =
 114                                 mpdclient_filelist_search_utf8(c, TRUE,
 115                                                                MPD_TABLE_ARTIST,
 116                                                                artist);
 117                 } else
 118                         browser.filelist =
 119                                 mpdclient_filelist_search_utf8(c, TRUE,
 120                                                                MPD_TABLE_ALBUM,
 121                                                                album);
 122                 if (browser.filelist == NULL)
 123                         browser.filelist = filelist_new(NULL);
 124
 125                 /* add a dummy entry for ".." */
 126                 filelist_prepend(browser.filelist, NULL);
 127
 128                 /* install playlist callback and fix highlights */
 129                 sync_highlights(c, browser.filelist);
 130                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 131                 mode = LIST_SONGS;
 132         } else if (m_artist) {
 133                 /* retreive albums... */
 134
 135                 artist = m_artist;
 136                 metalist = mpdclient_get_albums_utf8(c, m_artist);
 137                 /* sort list */
 138                 metalist = g_list_sort(metalist, compare_utf8);
 139                 /* add a dummy entry for ".." */
 140                 metalist = g_list_insert(metalist, g_strdup(".."), 0);
 141                 /* add a dummy entry for all songs */
 142                 metalist = g_list_insert(metalist, g_strdup(_("All tracks")), -1);
 143                 mode = LIST_ALBUMS;
 144         } else {
 145                 /* retreive artists... */
 146
 147                 metalist = mpdclient_get_artists_utf8(c);
 148                 /* sort list */
 149                 metalist = g_list_sort(metalist, compare_utf8);
 150                 mode = LIST_ARTISTS;
 151         }
 152         metalist_length = g_list_length(metalist);
 153         browser.lw->clear = TRUE;
 154 }
 155
 156 /* db updated */
 157 static void
 158 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 159 {
 160         switch(event) {
 161         case BROWSE_DB_UPDATED:
 162                 D("screen_artist.c> browse_callback() [BROWSE_DB_UPDATED]\n");
 163                 browser.lw->clear = 1;
 164                 update_metalist(c, g_strdup(artist), g_strdup(album));
 165                 break;
 166         default:
 167                 break;
 168         }
 169 }
 170
 171 static void
 172 init(WINDOW *w, int cols, int rows)
 173 {
 174         browser.lw = list_window_init(w, cols, rows);
 175         browser.lw_state = list_window_init_state();
 176         artist = NULL;
 177         album = NULL;
 178 }
 179
 180 static void
 181 quit(void)
 182 {
 183         if (browser.filelist)
 184                 filelist_free(browser.filelist);
 185         if (metalist)
 186                 string_list_free(metalist);
 187         g_free(artist);
 188         g_free(album);
 189         artist = NULL;
 190         album = NULL;
 191         list_window_free(browser.lw);
 192         list_window_free_state(browser.lw_state);
 193 }
 194
 195 static void
 196 open(mpd_unused screen_t *screen, mpdclient_t *c)
 197 {
 198         static gboolean callback_installed = FALSE;
 199
 200         if (metalist == NULL && browser.filelist == NULL)
 201                 update_metalist(c, NULL, NULL);
 202         if (!callback_installed) {
 203                 mpdclient_install_browse_callback(c, browse_callback);
 204                 callback_installed = TRUE;
 205         }
 206 }
 207
 208 static void
 209 resize(int cols, int rows)
 210 {
 211         browser.lw->cols = cols;
 212         browser.lw->rows = rows;
 213 }
 214
 215 static void
 216 paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 217 {
 218         browser.lw->clear = 1;
 219
 220         if (browser.filelist) {
 221                 list_window_paint(browser.lw, browser_lw_callback,
 222                                   browser.filelist);
 223                 browser.filelist->updated = FALSE;
 224         } else if (metalist) {
 225                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 226         } else {
 227                 wmove(browser.lw->w, 0, 0);
 228                 wclrtobot(browser.lw->w);
 229         }
 230
 231         wnoutrefresh(browser.lw->w);
 232 }
 233
 234 static void
 235 update(screen_t *screen, mpdclient_t *c)
 236 {
 237         if (browser.filelist && !browser.filelist->updated)
 238                 list_window_paint(browser.lw, browser_lw_callback,
 239                                   browser.filelist);
 240         else if (metalist)
 241                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 242         else
 243                 paint(screen, c);
 244         wnoutrefresh(browser.lw->w);
 245 }
 246
 247 static const char *
 248 get_title(char *str, size_t size)
 249 {
 250         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 251         char *s2 = album ? utf8_to_locale(album) : NULL;
 252
 253         switch(mode) {
 254         case LIST_ARTISTS:
 255                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 256                 break;
 257         case LIST_ALBUMS:
 258                 g_snprintf(str, size,  _("Artist: %s"), s1);
 259                 break;
 260         case LIST_SONGS:
 261                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 262                 break;
 263         }
 264         g_free(s1);
 265         g_free(s2);
 266         return str;
 267 }
 268
 269 static void
 270 add_query(mpdclient_t *c, int table, char *_filter)
 271 {
 272         char *str;
 273         mpdclient_filelist_t *addlist;
 274
 275         assert(filter != NULL);
 276
 277         str = utf8_to_locale(_filter);
 278         if (table== MPD_TABLE_ALBUM)
 279                 screen_status_printf("Adding album %s...", str);
 280         else
 281                 screen_status_printf("Adding %s...", str);
 282         g_free(str);
 283
 284         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 285         if (addlist) {
 286                 mpdclient_filelist_add_all(c, addlist);
 287                 filelist_free(addlist);
 288         }
 289 }
 290
 291 static int
 292 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 293 {
 294         char *selected;
 295
 296         switch(cmd) {
 297         case CMD_PLAY:
 298                 switch (mode) {
 299                 case LIST_ARTISTS:
 300                         selected = (char *) g_list_nth_data(metalist,
 301                                                             browser.lw->selected);
 302                         update_metalist(c, g_strdup(selected), NULL);
 303                         list_window_push_state(browser.lw_state, browser.lw);
 304                         break;
 305
 306                 case LIST_ALBUMS:
 307                         if (browser.lw->selected == 0) {
 308                                 /* handle ".." */
 309
 310                                 update_metalist(c, NULL, NULL);
 311                                 list_window_reset(browser.lw);
 312                                 /* restore previous list window state */
 313                                 list_window_pop_state(browser.lw_state, browser.lw);
 314                         } else if (browser.lw->selected == metalist_length - 1) {
 315                                 /* handle "show all" */
 316                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 317                                 list_window_push_state(browser.lw_state, browser.lw);
 318                         } else {
 319                                 /* select album */
 320                                 selected = g_list_nth_data(metalist,
 321                                                            browser.lw->selected);
 322                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 323                                 list_window_push_state(browser.lw_state, browser.lw);
 324                         }
 325                         break;
 326
 327                 case LIST_SONGS:
 328                         if (browser.lw->selected == 0) {
 329                                 /* handle ".." */
 330
 331                                 update_metalist(c, g_strdup(artist), NULL);
 332                                 list_window_reset(browser.lw);
 333                                 /* restore previous list window state */
 334                                 list_window_pop_state(browser.lw_state,
 335                                                       browser.lw);
 336                         } else
 337                                 browser_handle_enter(&browser, c);
 338                         break;
 339                 }
 340                 return 1;
 341
 342
 343                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 344
 345         case CMD_GO_PARENT_DIRECTORY:
 346                 switch (mode) {
 347                 case LIST_ARTISTS:
 348                         break;
 349
 350                 case LIST_ALBUMS:
 351                         update_metalist(c, NULL, NULL);
 352                         list_window_reset(browser.lw);
 353                         /* restore previous list window state */
 354                         list_window_pop_state(browser.lw_state, browser.lw);
 355                         break;
 356
 357                 case LIST_SONGS:
 358                         update_metalist(c, g_strdup(artist), NULL);
 359                         list_window_reset(browser.lw);
 360                         /* restore previous list window state */
 361                         list_window_pop_state(browser.lw_state, browser.lw);
 362                         break;
 363                 }
 364                 break;
 365
 366         case CMD_GO_ROOT_DIRECTORY:
 367                 switch (mode) {
 368                 case LIST_ARTISTS:
 369                         break;
 370
 371                 case LIST_ALBUMS:
 372                 case LIST_SONGS:
 373                         update_metalist(c, NULL, NULL);
 374                         list_window_reset(browser.lw);
 375                         /* restore first list window state (pop while returning true) */
 376                         while(list_window_pop_state(browser.lw_state, browser.lw));
 377                         break;
 378                 }
 379                 break;
 380
 381         case CMD_SELECT:
 382                 switch(mode) {
 383                 case LIST_ARTISTS:
 384                         selected = g_list_nth_data(metalist,
 385                                                    browser.lw->selected);
 386                         if (selected == NULL)
 387                                 return 1;
 388
 389                         add_query(c, MPD_TABLE_ARTIST, selected);
 390                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 391                         break;
 392
 393                 case LIST_ALBUMS:
 394                         if (browser.lw->selected &&
 395                             browser.lw->selected == metalist_length - 1)
 396                                 add_query(c, MPD_TABLE_ARTIST, artist);
 397                         else if (browser.lw->selected > 0) {
 398                                 selected = g_list_nth_data(metalist,
 399                                                            browser.lw->selected);
 400                                 if (selected == NULL)
 401                                         return 1;
 402
 403                                 add_query(c, MPD_TABLE_ALBUM, selected);
 404                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 405                         }
 406                         break;
 407
 408                 case LIST_SONGS:
 409                         if (browser_handle_select(&browser, c) == 0)
 410                                 /* continue and select next item... */
 411                                 cmd = CMD_LIST_NEXT;
 412                         break;
 413                 }
 414                 break;
 415
 416                 /* continue and update... */
 417         case CMD_SCREEN_UPDATE:
 418                 update_metalist(c, g_strdup(artist), g_strdup(album));
 419                 screen_status_printf(_("Screen updated!"));
 420                 return 0;
 421
 422         case CMD_LIST_FIND:
 423         case CMD_LIST_RFIND:
 424         case CMD_LIST_FIND_NEXT:
 425         case CMD_LIST_RFIND_NEXT:
 426                 if (browser.filelist)
 427                         return screen_find(screen,
 428                                            browser.lw, filelist_length(browser.filelist),
 429                                            cmd, browser_lw_callback,
 430                                            browser.filelist);
 431                 else if (metalist)
 432                         return screen_find(screen,
 433                                            browser.lw, metalist_length,
 434                                            cmd, artist_lw_callback, metalist);
 435                 else
 436                         return 1;
 437
 438         case CMD_MOUSE_EVENT:
 439                 return browser_handle_mouse_event(&browser, c);
 440
 441         default:
 442                 break;
 443         }
 444
 445         if (browser.filelist)
 446                 return list_window_cmd(browser.lw, filelist_length(browser.filelist), cmd);
 447         else if (metalist)
 448                 return list_window_cmd(browser.lw, metalist_length, cmd);
 449
 450         return 0;
 451 }
 452
 453 const struct screen_functions screen_artist = {
 454         .init = init,
 455         .exit = quit,
 456         .open = open,
 457         .resize = resize,
 458         .paint = paint,
 459         .update = update,
 460         .cmd = artist_cmd,
 461         .get_title = get_title,
 462 };
 463
 464 #endif /* ENABLE_ARTIST_SCREEN */