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 }
 154
 155 /* db updated */
 156 static void
 157 browse_callback(mpdclient_t *c, int event, mpd_unused gpointer data)
 158 {
 159         switch(event) {
 160         case BROWSE_DB_UPDATED:
 161                 D("screen_artist.c> browse_callback() [BROWSE_DB_UPDATED]\n");
 162                 update_metalist(c, g_strdup(artist), g_strdup(album));
 163                 break;
 164         default:
 165                 break;
 166         }
 167 }
 168
 169 static void
 170 init(WINDOW *w, int cols, int rows)
 171 {
 172         browser.lw = list_window_init(w, cols, rows);
 173         browser.lw_state = list_window_init_state();
 174         artist = NULL;
 175         album = NULL;
 176 }
 177
 178 static void
 179 quit(void)
 180 {
 181         if (browser.filelist)
 182                 filelist_free(browser.filelist);
 183         if (metalist)
 184                 string_list_free(metalist);
 185         g_free(artist);
 186         g_free(album);
 187         artist = NULL;
 188         album = NULL;
 189         list_window_free(browser.lw);
 190         list_window_free_state(browser.lw_state);
 191 }
 192
 193 static void
 194 open(mpd_unused screen_t *screen, mpdclient_t *c)
 195 {
 196         static gboolean callback_installed = FALSE;
 197
 198         if (metalist == NULL && browser.filelist == NULL)
 199                 update_metalist(c, NULL, NULL);
 200         if (!callback_installed) {
 201                 mpdclient_install_browse_callback(c, browse_callback);
 202                 callback_installed = TRUE;
 203         }
 204 }
 205
 206 static void
 207 resize(int cols, int rows)
 208 {
 209         browser.lw->cols = cols;
 210         browser.lw->rows = rows;
 211 }
 212
 213 static void
 214 paint(mpd_unused mpdclient_t *c)
 215 {
 216         if (browser.filelist) {
 217                 list_window_paint(browser.lw, browser_lw_callback,
 218                                   browser.filelist);
 219                 browser.filelist->updated = FALSE;
 220         } else if (metalist) {
 221                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 222         } else {
 223                 wmove(browser.lw->w, 0, 0);
 224                 wclrtobot(browser.lw->w);
 225         }
 226 }
 227
 228 static void
 229 update(mpd_unused screen_t *screen, mpdclient_t *c)
 230 {
 231         if (browser.filelist && !browser.filelist->updated)
 232                 list_window_paint(browser.lw, browser_lw_callback,
 233                                   browser.filelist);
 234         else if (metalist)
 235                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 236         else
 237                 paint(c);
 238         wnoutrefresh(browser.lw->w);
 239 }
 240
 241 static const char *
 242 get_title(char *str, size_t size)
 243 {
 244         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 245         char *s2 = album ? utf8_to_locale(album) : NULL;
 246
 247         switch(mode) {
 248         case LIST_ARTISTS:
 249                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 250                 break;
 251         case LIST_ALBUMS:
 252                 g_snprintf(str, size,  _("Artist: %s"), s1);
 253                 break;
 254         case LIST_SONGS:
 255                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 256                 break;
 257         }
 258         g_free(s1);
 259         g_free(s2);
 260         return str;
 261 }
 262
 263 static void
 264 add_query(mpdclient_t *c, int table, char *_filter)
 265 {
 266         char *str;
 267         mpdclient_filelist_t *addlist;
 268
 269         assert(filter != NULL);
 270
 271         str = utf8_to_locale(_filter);
 272         if (table== MPD_TABLE_ALBUM)
 273                 screen_status_printf("Adding album %s...", str);
 274         else
 275                 screen_status_printf("Adding %s...", str);
 276         g_free(str);
 277
 278         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 279         if (addlist) {
 280                 mpdclient_filelist_add_all(c, addlist);
 281                 filelist_free(addlist);
 282         }
 283 }
 284
 285 static int
 286 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 287 {
 288         char *selected;
 289
 290         switch(cmd) {
 291         case CMD_PLAY:
 292                 switch (mode) {
 293                 case LIST_ARTISTS:
 294                         selected = (char *) g_list_nth_data(metalist,
 295                                                             browser.lw->selected);
 296                         update_metalist(c, g_strdup(selected), NULL);
 297                         list_window_push_state(browser.lw_state, browser.lw);
 298                         break;
 299
 300                 case LIST_ALBUMS:
 301                         if (browser.lw->selected == 0) {
 302                                 /* handle ".." */
 303
 304                                 update_metalist(c, NULL, NULL);
 305                                 list_window_reset(browser.lw);
 306                                 /* restore previous list window state */
 307                                 list_window_pop_state(browser.lw_state, browser.lw);
 308                         } else if (browser.lw->selected == metalist_length - 1) {
 309                                 /* handle "show all" */
 310                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 311                                 list_window_push_state(browser.lw_state, browser.lw);
 312                         } else {
 313                                 /* select album */
 314                                 selected = g_list_nth_data(metalist,
 315                                                            browser.lw->selected);
 316                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 317                                 list_window_push_state(browser.lw_state, browser.lw);
 318                         }
 319                         break;
 320
 321                 case LIST_SONGS:
 322                         if (browser.lw->selected == 0) {
 323                                 /* handle ".." */
 324
 325                                 update_metalist(c, g_strdup(artist), NULL);
 326                                 list_window_reset(browser.lw);
 327                                 /* restore previous list window state */
 328                                 list_window_pop_state(browser.lw_state,
 329                                                       browser.lw);
 330                         } else
 331                                 browser_handle_enter(&browser, c);
 332                         break;
 333                 }
 334                 return 1;
 335
 336
 337                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 338
 339         case CMD_GO_PARENT_DIRECTORY:
 340                 switch (mode) {
 341                 case LIST_ARTISTS:
 342                         break;
 343
 344                 case LIST_ALBUMS:
 345                         update_metalist(c, NULL, NULL);
 346                         list_window_reset(browser.lw);
 347                         /* restore previous list window state */
 348                         list_window_pop_state(browser.lw_state, browser.lw);
 349                         break;
 350
 351                 case LIST_SONGS:
 352                         update_metalist(c, g_strdup(artist), NULL);
 353                         list_window_reset(browser.lw);
 354                         /* restore previous list window state */
 355                         list_window_pop_state(browser.lw_state, browser.lw);
 356                         break;
 357                 }
 358                 break;
 359
 360         case CMD_GO_ROOT_DIRECTORY:
 361                 switch (mode) {
 362                 case LIST_ARTISTS:
 363                         break;
 364
 365                 case LIST_ALBUMS:
 366                 case LIST_SONGS:
 367                         update_metalist(c, NULL, NULL);
 368                         list_window_reset(browser.lw);
 369                         /* restore first list window state (pop while returning true) */
 370                         while(list_window_pop_state(browser.lw_state, browser.lw));
 371                         break;
 372                 }
 373                 break;
 374
 375         case CMD_SELECT:
 376                 switch(mode) {
 377                 case LIST_ARTISTS:
 378                         selected = g_list_nth_data(metalist,
 379                                                    browser.lw->selected);
 380                         if (selected == NULL)
 381                                 return 1;
 382
 383                         add_query(c, MPD_TABLE_ARTIST, selected);
 384                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 385                         break;
 386
 387                 case LIST_ALBUMS:
 388                         if (browser.lw->selected &&
 389                             browser.lw->selected == metalist_length - 1)
 390                                 add_query(c, MPD_TABLE_ARTIST, artist);
 391                         else if (browser.lw->selected > 0) {
 392                                 selected = g_list_nth_data(metalist,
 393                                                            browser.lw->selected);
 394                                 if (selected == NULL)
 395                                         return 1;
 396
 397                                 add_query(c, MPD_TABLE_ALBUM, selected);
 398                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 399                         }
 400                         break;
 401
 402                 case LIST_SONGS:
 403                         if (browser_handle_select(&browser, c) == 0)
 404                                 /* continue and select next item... */
 405                                 cmd = CMD_LIST_NEXT;
 406                         break;
 407                 }
 408                 break;
 409
 410                 /* continue and update... */
 411         case CMD_SCREEN_UPDATE:
 412                 update_metalist(c, g_strdup(artist), g_strdup(album));
 413                 screen_status_printf(_("Screen updated!"));
 414                 return 0;
 415
 416         case CMD_LIST_FIND:
 417         case CMD_LIST_RFIND:
 418         case CMD_LIST_FIND_NEXT:
 419         case CMD_LIST_RFIND_NEXT:
 420                 if (browser.filelist)
 421                         return screen_find(screen,
 422                                            browser.lw, filelist_length(browser.filelist),
 423                                            cmd, browser_lw_callback,
 424                                            browser.filelist);
 425                 else if (metalist)
 426                         return screen_find(screen,
 427                                            browser.lw, metalist_length,
 428                                            cmd, artist_lw_callback, metalist);
 429                 else
 430                         return 1;
 431
 432         case CMD_MOUSE_EVENT:
 433                 return browser_handle_mouse_event(&browser, c);
 434
 435         default:
 436                 break;
 437         }
 438
 439         if (browser.filelist)
 440                 return list_window_cmd(browser.lw, filelist_length(browser.filelist), cmd);
 441         else if (metalist)
 442                 return list_window_cmd(browser.lw, metalist_length, cmd);
 443
 444         return 0;
 445 }
 446
 447 const struct screen_functions screen_artist = {
 448         .init = init,
 449         .exit = quit,
 450         .open = open,
 451         .resize = resize,
 452         .paint = paint,
 453         .update = update,
 454         .cmd = artist_cmd,
 455         .get_title = get_title,
 456 };
 457
 458 #endif /* ENABLE_ARTIST_SCREEN */