src/screen_artist.c

   1 /*
   2  * $Id$
   3  *
   4  * (c) 2005 by Kalle Wallin <kaw@linux.se>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  *
  19  */
  20
  21 #include "config.h"
  22
  23 #ifndef DISABLE_ARTIST_SCREEN
  24 #include "ncmpc.h"
  25 #include "options.h"
  26 #include "support.h"
  27 #include "mpdclient.h"
  28 #include "utils.h"
  29 #include "strfsong.h"
  30 #include "command.h"
  31 #include "screen.h"
  32 #include "screen_utils.h"
  33 #include "screen_browser.h"
  34 #include "gcc.h"
  35
  36 #include <ctype.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <glib.h>
  40 #include <ncurses.h>
  41
  42 #define BUFSIZE 1024
  43
  44 typedef enum { LIST_ARTISTS, LIST_ALBUMS, LIST_SONGS } artist_mode_t;
  45
  46 static artist_mode_t mode = LIST_ARTISTS;
  47 static char *artist = NULL;
  48 static char *album  = NULL;
  49 static unsigned metalist_length = 0;
  50 static GList *metalist = NULL;
  51
  52 static struct screen_browser browser;
  53
  54 static gint
  55 compare_utf8(gconstpointer s1, gconstpointer s2)
  56 {
  57         char *key1, *key2;
  58         int n;
  59
  60         key1 = g_utf8_collate_key(s1,-1);
  61         key2 = g_utf8_collate_key(s2,-1);
  62         n = strcmp(key1,key2);
  63         g_free(key1);
  64         g_free(key2);
  65         return n;
  66 }
  67
  68 /* list_window callback */
  69 static const char *
  70 artist_lw_callback(unsigned idx, mpd_unused int *highlight, mpd_unused void *data)
  71 {
  72         static char buf[BUFSIZE];
  73         char *str, *str_utf8;
  74
  75         if ((str_utf8 = (char *)g_list_nth_data(metalist, idx)) == NULL)
  76                 return NULL;
  77
  78         str = utf8_to_locale(str_utf8);
  79         g_snprintf(buf, BUFSIZE, "[%s]", str);
  80         g_free(str);
  81
  82         return buf;
  83 }
  84
  85 /* the playlist have been updated -> fix highlights */
  86 static void
  87 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
  88 {
  89         browser_playlist_changed(&browser, c, event, data);
  90 }
  91
  92 /* fetch artists/albums/songs from mpd */
  93 static void
  94 update_metalist(mpdclient_t *c, char *m_artist, char *m_album)
  95 {
  96         g_free(artist);
  97         g_free(album);
  98         artist = NULL;
  99         album = NULL;
 100
 101         if (metalist)
 102                 metalist = string_list_free(metalist);
 103         if (browser.filelist) {
 104                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 105                 filelist_free(browser.filelist);
 106                 browser.filelist = NULL;
 107         }
 108
 109         if (m_album) {
 110                 /* retreive songs... */
 111                 artist = m_artist;
 112                 album = m_album;
 113                 if (album[0] == 0) {
 114                         album = g_strdup(_("All tracks"));
 115                         browser.filelist =
 116                                 mpdclient_filelist_search_utf8(c, TRUE,
 117                                                                MPD_TABLE_ARTIST,
 118                                                                artist);
 119                 } else
 120                         browser.filelist =
 121                                 mpdclient_filelist_search_utf8(c, TRUE,
 122                                                                MPD_TABLE_ALBUM,
 123                                                                album);
 124                 if (browser.filelist == NULL)
 125                         browser.filelist = filelist_new(NULL);
 126
 127                 /* add a dummy entry for ".." */
 128                 filelist_prepend(browser.filelist, NULL);
 129
 130                 /* install playlist callback and fix highlights */
 131                 sync_highlights(c, browser.filelist);
 132                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 133                 mode = LIST_SONGS;
 134         } else if (m_artist) {
 135                 /* retreive albums... */
 136
 137                 artist = m_artist;
 138                 metalist = mpdclient_get_albums_utf8(c, m_artist);
 139                 /* sort list */
 140                 metalist = g_list_sort(metalist, compare_utf8);
 141                 /* add a dummy entry for ".." */
 142                 metalist = g_list_insert(metalist, g_strdup(".."), 0);
 143                 /* add a dummy entry for all songs */
 144                 metalist = g_list_insert(metalist, g_strdup(_("All tracks")), -1);
 145                 mode = LIST_ALBUMS;
 146         } else {
 147                 /* retreive artists... */
 148
 149                 metalist = mpdclient_get_artists_utf8(c);
 150                 /* sort list */
 151                 metalist = g_list_sort(metalist, compare_utf8);
 152                 mode = LIST_ARTISTS;
 153         }
 154         metalist_length = g_list_length(metalist);
 155         browser.lw->clear = TRUE;
 156 }
 157
 158 /* db updated */
 159 static void
 160 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 161 {
 162         switch(event) {
 163         case BROWSE_DB_UPDATED:
 164                 D("screen_artist.c> browse_callback() [BROWSE_DB_UPDATED]\n");
 165                 browser.lw->clear = 1;
 166                 browser.lw->repaint = 1;
 167                 update_metalist(c, g_strdup(artist), g_strdup(album));
 168                 break;
 169         default:
 170                 break;
 171         }
 172 }
 173
 174 static void
 175 init(WINDOW *w, int cols, int rows)
 176 {
 177         browser.lw = list_window_init(w, cols, rows);
 178         browser.lw_state = list_window_init_state();
 179         artist = NULL;
 180         album = NULL;
 181 }
 182
 183 static void
 184 quit(void)
 185 {
 186         if (browser.filelist)
 187                 filelist_free(browser.filelist);
 188         if (metalist)
 189                 string_list_free(metalist);
 190         g_free(artist);
 191         g_free(album);
 192         artist = NULL;
 193         album = NULL;
 194         list_window_free(browser.lw);
 195         list_window_free_state(browser.lw_state);
 196 }
 197
 198 static void
 199 open(mpd_unused screen_t *screen, mpdclient_t *c)
 200 {
 201         static gboolean callback_installed = FALSE;
 202
 203         if (metalist == NULL && browser.filelist == NULL)
 204                 update_metalist(c, NULL, NULL);
 205         if (!callback_installed) {
 206                 mpdclient_install_browse_callback(c, browse_callback);
 207                 callback_installed = TRUE;
 208         }
 209 }
 210
 211 static void
 212 resize(int cols, int rows)
 213 {
 214         browser.lw->cols = cols;
 215         browser.lw->rows = rows;
 216 }
 217
 218 static void
 219 paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 220 {
 221         browser.lw->clear = 1;
 222
 223         if (browser.filelist) {
 224                 list_window_paint(browser.lw, browser_lw_callback,
 225                                   browser.filelist);
 226                 browser.filelist->updated = FALSE;
 227         } else if (metalist) {
 228                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 229         } else {
 230                 wmove(browser.lw->w, 0, 0);
 231                 wclrtobot(browser.lw->w);
 232         }
 233
 234         wnoutrefresh(browser.lw->w);
 235 }
 236
 237 static void
 238 update(screen_t *screen, mpdclient_t *c)
 239 {
 240         if (browser.filelist && !browser.filelist->updated)
 241                 list_window_paint(browser.lw, browser_lw_callback,
 242                                   browser.filelist);
 243         else if (metalist)
 244                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 245         else
 246                 paint(screen, c);
 247         wnoutrefresh(browser.lw->w);
 248 }
 249
 250 static const char *
 251 get_title(char *str, size_t size)
 252 {
 253         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 254         char *s2 = album ? utf8_to_locale(album) : NULL;
 255
 256         switch(mode) {
 257         case LIST_ARTISTS:
 258                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 259                 break;
 260         case LIST_ALBUMS:
 261                 g_snprintf(str, size,  _("Artist: %s"), s1);
 262                 break;
 263         case LIST_SONGS:
 264                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 265                 break;
 266         }
 267         g_free(s1);
 268         g_free(s2);
 269         return str;
 270 }
 271
 272 static void
 273 add_query(mpdclient_t *c, int table, char *_filter)
 274 {
 275         char *str;
 276         mpdclient_filelist_t *addlist;
 277
 278         assert(filter != NULL);
 279
 280         str = utf8_to_locale(_filter);
 281         if (table== MPD_TABLE_ALBUM)
 282                 screen_status_printf("Adding album %s...", str);
 283         else
 284                 screen_status_printf("Adding %s...", str);
 285         g_free(str);
 286
 287         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 288         if (addlist) {
 289                 mpdclient_filelist_add_all(c, addlist);
 290                 filelist_free(addlist);
 291         }
 292 }
 293
 294 static int
 295 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 296 {
 297         char *selected;
 298
 299         switch(cmd) {
 300         case CMD_PLAY:
 301                 switch (mode) {
 302                 case LIST_ARTISTS:
 303                         selected = (char *) g_list_nth_data(metalist,
 304                                                             browser.lw->selected);
 305                         update_metalist(c, g_strdup(selected), NULL);
 306                         list_window_push_state(browser.lw_state, browser.lw);
 307                         break;
 308
 309                 case LIST_ALBUMS:
 310                         if (browser.lw->selected == 0) {
 311                                 /* handle ".." */
 312
 313                                 update_metalist(c, NULL, NULL);
 314                                 list_window_reset(browser.lw);
 315                                 /* restore previous list window state */
 316                                 list_window_pop_state(browser.lw_state, browser.lw);
 317                         } else if (browser.lw->selected == metalist_length - 1) {
 318                                 /* handle "show all" */
 319                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 320                                 list_window_push_state(browser.lw_state, browser.lw);
 321                         } else {
 322                                 /* select album */
 323                                 selected = g_list_nth_data(metalist,
 324                                                            browser.lw->selected);
 325                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 326                                 list_window_push_state(browser.lw_state, browser.lw);
 327                         }
 328                         break;
 329
 330                 case LIST_SONGS:
 331                         if (browser.lw->selected == 0) {
 332                                 /* handle ".." */
 333
 334                                 update_metalist(c, g_strdup(artist), NULL);
 335                                 list_window_reset(browser.lw);
 336                                 /* restore previous list window state */
 337                                 list_window_pop_state(browser.lw_state,
 338                                                       browser.lw);
 339                         } else
 340                                 browser_handle_enter(&browser, c);
 341                         break;
 342                 }
 343                 return 1;
 344
 345
 346                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 347
 348         case CMD_GO_PARENT_DIRECTORY:
 349                 switch (mode) {
 350                 case LIST_ARTISTS:
 351                         break;
 352
 353                 case LIST_ALBUMS:
 354                         update_metalist(c, NULL, NULL);
 355                         list_window_reset(browser.lw);
 356                         /* restore previous list window state */
 357                         list_window_pop_state(browser.lw_state, browser.lw);
 358                         break;
 359
 360                 case LIST_SONGS:
 361                         update_metalist(c, g_strdup(artist), NULL);
 362                         list_window_reset(browser.lw);
 363                         /* restore previous list window state */
 364                         list_window_pop_state(browser.lw_state, browser.lw);
 365                         break;
 366                 }
 367                 break;
 368
 369         case CMD_GO_ROOT_DIRECTORY:
 370                 switch (mode) {
 371                 case LIST_ARTISTS:
 372                         break;
 373
 374                 case LIST_ALBUMS:
 375                 case LIST_SONGS:
 376                         update_metalist(c, NULL, NULL);
 377                         list_window_reset(browser.lw);
 378                         /* restore first list window state (pop while returning true) */
 379                         while(list_window_pop_state(browser.lw_state, browser.lw));
 380                         break;
 381                 }
 382                 break;
 383
 384         case CMD_SELECT:
 385                 switch(mode) {
 386                 case LIST_ARTISTS:
 387                         selected = g_list_nth_data(metalist,
 388                                                    browser.lw->selected);
 389                         if (selected == NULL)
 390                                 return 1;
 391
 392                         add_query(c, MPD_TABLE_ARTIST, selected);
 393                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 394                         break;
 395
 396                 case LIST_ALBUMS:
 397                         if (browser.lw->selected &&
 398                             browser.lw->selected == metalist_length - 1)
 399                                 add_query(c, MPD_TABLE_ARTIST, artist);
 400                         else if (browser.lw->selected > 0) {
 401                                 selected = g_list_nth_data(metalist,
 402                                                            browser.lw->selected);
 403                                 if (selected == NULL)
 404                                         return 1;
 405
 406                                 add_query(c, MPD_TABLE_ALBUM, selected);
 407                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 408                         }
 409                         break;
 410
 411                 case LIST_SONGS:
 412                         if (browser_handle_select(&browser, c) == 0)
 413                                 /* continue and select next item... */
 414                                 cmd = CMD_LIST_NEXT;
 415                         break;
 416                 }
 417                 break;
 418
 419                 /* continue and update... */
 420         case CMD_SCREEN_UPDATE:
 421                 screen->painted = 0;
 422                 browser.lw->clear = 1;
 423                 browser.lw->repaint = 1;
 424                 update_metalist(c, g_strdup(artist), g_strdup(album));
 425                 screen_status_printf(_("Screen updated!"));
 426                 return 0;
 427
 428         case CMD_LIST_FIND:
 429         case CMD_LIST_RFIND:
 430         case CMD_LIST_FIND_NEXT:
 431         case CMD_LIST_RFIND_NEXT:
 432                 if (browser.filelist)
 433                         return screen_find(screen,
 434                                            browser.lw, filelist_length(browser.filelist),
 435                                            cmd, browser_lw_callback,
 436                                            browser.filelist);
 437                 else if (metalist)
 438                         return screen_find(screen,
 439                                            browser.lw, metalist_length,
 440                                            cmd, artist_lw_callback, metalist);
 441                 else
 442                         return 1;
 443
 444         case CMD_MOUSE_EVENT:
 445                 return browser_handle_mouse_event(&browser, c);
 446
 447         default:
 448                 break;
 449         }
 450
 451         if (browser.filelist)
 452                 return list_window_cmd(browser.lw, filelist_length(browser.filelist), cmd);
 453         else if (metalist)
 454                 return list_window_cmd(browser.lw, metalist_length, cmd);
 455
 456         return 0;
 457 }
 458
 459 const struct screen_functions screen_artist = {
 460         .init = init,
 461         .exit = quit,
 462         .open = open,
 463         .resize = resize,
 464         .paint = paint,
 465         .update = update,
 466         .cmd = artist_cmd,
 467         .get_title = get_title,
 468 };
 469
 470 #endif /* ENABLE_ARTIST_SCREEN */