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                 /* add a dummy entry for ".." */
 125                 filelist_prepend(browser.filelist, NULL);
 126
 127                 /* install playlist callback and fix highlights */
 128                 sync_highlights(c, browser.filelist);
 129                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 130                 mode = LIST_SONGS;
 131         } else if (m_artist) {
 132                 /* retreive albums... */
 133
 134                 artist = m_artist;
 135                 metalist = mpdclient_get_albums_utf8(c, m_artist);
 136                 /* sort list */
 137                 metalist = g_list_sort(metalist, compare_utf8);
 138                 /* add a dummy entry for ".." */
 139                 metalist = g_list_insert(metalist, g_strdup(".."), 0);
 140                 /* add a dummy entry for all songs */
 141                 metalist = g_list_insert(metalist, g_strdup(_("All tracks")), -1);
 142                 mode = LIST_ALBUMS;
 143         } else {
 144                 /* retreive artists... */
 145
 146                 metalist = mpdclient_get_artists_utf8(c);
 147                 /* sort list */
 148                 metalist = g_list_sort(metalist, compare_utf8);
 149                 mode = LIST_ARTISTS;
 150         }
 151         metalist_length = g_list_length(metalist);
 152         browser.lw->clear = TRUE;
 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                 browser.lw->clear = 1;
 163                 browser.lw->repaint = 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         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
 294         switch(cmd) {
 295         case CMD_PLAY:
 296                 switch (mode) {
 297                 case LIST_ARTISTS:
 298                         selected = (char *) g_list_nth_data(metalist,
 299                                                             browser.lw->selected);
 300                         update_metalist(c, g_strdup(selected), NULL);
 301                         list_window_push_state(browser.lw_state, browser.lw);
 302                         break;
 303
 304                 case LIST_ALBUMS:
 305                         if (browser.lw->selected == 0) {
 306                                 /* handle ".." */
 307
 308                                 update_metalist(c, NULL, NULL);
 309                                 list_window_reset(browser.lw);
 310                                 /* restore previous list window state */
 311                                 list_window_pop_state(browser.lw_state, browser.lw);
 312                         } else if (browser.lw->selected == metalist_length - 1) {
 313                                 /* handle "show all" */
 314                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 315                                 list_window_push_state(browser.lw_state, browser.lw);
 316                         } else {
 317                                 /* select album */
 318                                 selected = g_list_nth_data(metalist,
 319                                                            browser.lw->selected);
 320                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 321                                 list_window_push_state(browser.lw_state, browser.lw);
 322                         }
 323                         break;
 324
 325                 case LIST_SONGS:
 326                         if (browser.lw->selected == 0) {
 327                                 /* handle ".." */
 328
 329                                 update_metalist(c, g_strdup(artist), NULL);
 330                                 list_window_reset(browser.lw);
 331                                 /* restore previous list window state */
 332                                 list_window_pop_state(browser.lw_state,
 333                                                       browser.lw);
 334                         } else
 335                                 browser_handle_enter(&browser, c);
 336                         break;
 337                 }
 338                 return 1;
 339
 340
 341                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 342
 343         case CMD_GO_PARENT_DIRECTORY:
 344                 switch (mode) {
 345                 case LIST_ARTISTS:
 346                         break;
 347
 348                 case LIST_ALBUMS:
 349                         update_metalist(c, NULL, NULL);
 350                         list_window_reset(browser.lw);
 351                         /* restore previous list window state */
 352                         list_window_pop_state(browser.lw_state, browser.lw);
 353                         break;
 354
 355                 case LIST_SONGS:
 356                         update_metalist(c, g_strdup(artist), NULL);
 357                         list_window_reset(browser.lw);
 358                         /* restore previous list window state */
 359                         list_window_pop_state(browser.lw_state, browser.lw);
 360                         break;
 361                 }
 362                 break;
 363
 364         case CMD_GO_ROOT_DIRECTORY:
 365                 switch (mode) {
 366                 case LIST_ARTISTS:
 367                         break;
 368
 369                 case LIST_ALBUMS:
 370                 case LIST_SONGS:
 371                         update_metalist(c, NULL, NULL);
 372                         list_window_reset(browser.lw);
 373                         /* restore first list window state (pop while returning true) */
 374                         while(list_window_pop_state(browser.lw_state, browser.lw));
 375                         break;
 376                 }
 377                 break;
 378
 379         case CMD_SELECT:
 380                 switch(mode) {
 381                 case LIST_ARTISTS:
 382                         selected = g_list_nth_data(metalist,
 383                                                    browser.lw->selected);
 384                         add_query(c, MPD_TABLE_ARTIST, selected);
 385                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 386                         break;
 387
 388                 case LIST_ALBUMS:
 389                         if (browser.lw->selected &&
 390                             browser.lw->selected == metalist_length - 1)
 391                                 add_query(c, MPD_TABLE_ARTIST, artist);
 392                         else if (browser.lw->selected > 0) {
 393                                 selected = g_list_nth_data(metalist,
 394                                                            browser.lw->selected);
 395                                 add_query(c, MPD_TABLE_ALBUM, selected);
 396                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 397                         }
 398                         break;
 399
 400                 case LIST_SONGS:
 401                         if (browser_handle_select(&browser, c) == 0)
 402                                 /* continue and select next item... */
 403                                 cmd = CMD_LIST_NEXT;
 404                         break;
 405                 }
 406                 break;
 407
 408                 /* continue and update... */
 409         case CMD_SCREEN_UPDATE:
 410                 screen->painted = 0;
 411                 browser.lw->clear = 1;
 412                 browser.lw->repaint = 1;
 413                 update_metalist(c, g_strdup(artist), g_strdup(album));
 414                 screen_status_printf(_("Screen updated!"));
 415                 return 0;
 416
 417         case CMD_LIST_FIND:
 418         case CMD_LIST_RFIND:
 419         case CMD_LIST_FIND_NEXT:
 420         case CMD_LIST_RFIND_NEXT:
 421                 if (browser.filelist)
 422                         return screen_find(screen,
 423                                            browser.lw, filelist_length(browser.filelist),
 424                                            cmd, browser_lw_callback,
 425                                            browser.filelist);
 426                 else if (metalist)
 427                         return screen_find(screen,
 428                                            browser.lw, metalist_length,
 429                                            cmd, artist_lw_callback, metalist);
 430                 else
 431                         return 1;
 432
 433         case CMD_MOUSE_EVENT:
 434                 return browser_handle_mouse_event(&browser, c);
 435
 436         default:
 437                 break;
 438         }
 439
 440         if (browser.filelist)
 441                 return list_window_cmd(browser.lw, filelist_length(browser.filelist), cmd);
 442         else if (metalist)
 443                 return list_window_cmd(browser.lw, metalist_length, cmd);
 444
 445         return 0;
 446 }
 447
 448 const struct screen_functions screen_artist = {
 449         .init = init,
 450         .exit = quit,
 451         .open = open,
 452         .resize = resize,
 453         .paint = paint,
 454         .update = update,
 455         .cmd = artist_cmd,
 456         .get_title = get_title,
 457 };
 458
 459 #endif /* ENABLE_ARTIST_SCREEN */