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                 update_metalist(c, g_strdup(artist), g_strdup(album));
 167                 break;
 168         default:
 169                 break;
 170         }
 171 }
 172
 173 static void
 174 init(WINDOW *w, int cols, int rows)
 175 {
 176         browser.lw = list_window_init(w, cols, rows);
 177         browser.lw_state = list_window_init_state();
 178         artist = NULL;
 179         album = NULL;
 180 }
 181
 182 static void
 183 quit(void)
 184 {
 185         if (browser.filelist)
 186                 filelist_free(browser.filelist);
 187         if (metalist)
 188                 string_list_free(metalist);
 189         g_free(artist);
 190         g_free(album);
 191         artist = NULL;
 192         album = NULL;
 193         list_window_free(browser.lw);
 194         list_window_free_state(browser.lw_state);
 195 }
 196
 197 static void
 198 open(mpd_unused screen_t *screen, mpdclient_t *c)
 199 {
 200         static gboolean callback_installed = FALSE;
 201
 202         if (metalist == NULL && browser.filelist == NULL)
 203                 update_metalist(c, NULL, NULL);
 204         if (!callback_installed) {
 205                 mpdclient_install_browse_callback(c, browse_callback);
 206                 callback_installed = TRUE;
 207         }
 208 }
 209
 210 static void
 211 resize(int cols, int rows)
 212 {
 213         browser.lw->cols = cols;
 214         browser.lw->rows = rows;
 215 }
 216
 217 static void
 218 paint(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 219 {
 220         browser.lw->clear = 1;
 221
 222         if (browser.filelist) {
 223                 list_window_paint(browser.lw, browser_lw_callback,
 224                                   browser.filelist);
 225                 browser.filelist->updated = FALSE;
 226         } else if (metalist) {
 227                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 228         } else {
 229                 wmove(browser.lw->w, 0, 0);
 230                 wclrtobot(browser.lw->w);
 231         }
 232
 233         wnoutrefresh(browser.lw->w);
 234 }
 235
 236 static void
 237 update(screen_t *screen, mpdclient_t *c)
 238 {
 239         if (browser.filelist && !browser.filelist->updated)
 240                 list_window_paint(browser.lw, browser_lw_callback,
 241                                   browser.filelist);
 242         else if (metalist)
 243                 list_window_paint(browser.lw, artist_lw_callback, metalist);
 244         else
 245                 paint(screen, c);
 246         wnoutrefresh(browser.lw->w);
 247 }
 248
 249 static const char *
 250 get_title(char *str, size_t size)
 251 {
 252         char *s1 = artist ? utf8_to_locale(artist) : NULL;
 253         char *s2 = album ? utf8_to_locale(album) : NULL;
 254
 255         switch(mode) {
 256         case LIST_ARTISTS:
 257                 g_snprintf(str, size,  _("Artist: [db browser - EXPERIMENTAL]"));
 258                 break;
 259         case LIST_ALBUMS:
 260                 g_snprintf(str, size,  _("Artist: %s"), s1);
 261                 break;
 262         case LIST_SONGS:
 263                 g_snprintf(str, size,  _("Artist: %s - %s"), s1, s2);
 264                 break;
 265         }
 266         g_free(s1);
 267         g_free(s2);
 268         return str;
 269 }
 270
 271 static void
 272 add_query(mpdclient_t *c, int table, char *_filter)
 273 {
 274         char *str;
 275         mpdclient_filelist_t *addlist;
 276
 277         assert(filter != NULL);
 278
 279         str = utf8_to_locale(_filter);
 280         if (table== MPD_TABLE_ALBUM)
 281                 screen_status_printf("Adding album %s...", str);
 282         else
 283                 screen_status_printf("Adding %s...", str);
 284         g_free(str);
 285
 286         addlist = mpdclient_filelist_search_utf8(c, TRUE, table, _filter);
 287         if (addlist) {
 288                 mpdclient_filelist_add_all(c, addlist);
 289                 filelist_free(addlist);
 290         }
 291 }
 292
 293 static int
 294 artist_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 295 {
 296         char *selected;
 297
 298         switch(cmd) {
 299         case CMD_PLAY:
 300                 switch (mode) {
 301                 case LIST_ARTISTS:
 302                         selected = (char *) g_list_nth_data(metalist,
 303                                                             browser.lw->selected);
 304                         update_metalist(c, g_strdup(selected), NULL);
 305                         list_window_push_state(browser.lw_state, browser.lw);
 306                         break;
 307
 308                 case LIST_ALBUMS:
 309                         if (browser.lw->selected == 0) {
 310                                 /* handle ".." */
 311
 312                                 update_metalist(c, NULL, NULL);
 313                                 list_window_reset(browser.lw);
 314                                 /* restore previous list window state */
 315                                 list_window_pop_state(browser.lw_state, browser.lw);
 316                         } else if (browser.lw->selected == metalist_length - 1) {
 317                                 /* handle "show all" */
 318                                 update_metalist(c, g_strdup(artist), g_strdup("\0"));
 319                                 list_window_push_state(browser.lw_state, browser.lw);
 320                         } else {
 321                                 /* select album */
 322                                 selected = g_list_nth_data(metalist,
 323                                                            browser.lw->selected);
 324                                 update_metalist(c, g_strdup(artist), g_strdup(selected));
 325                                 list_window_push_state(browser.lw_state, browser.lw);
 326                         }
 327                         break;
 328
 329                 case LIST_SONGS:
 330                         if (browser.lw->selected == 0) {
 331                                 /* handle ".." */
 332
 333                                 update_metalist(c, g_strdup(artist), NULL);
 334                                 list_window_reset(browser.lw);
 335                                 /* restore previous list window state */
 336                                 list_window_pop_state(browser.lw_state,
 337                                                       browser.lw);
 338                         } else
 339                                 browser_handle_enter(&browser, c);
 340                         break;
 341                 }
 342                 return 1;
 343
 344
 345                 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
 346
 347         case CMD_GO_PARENT_DIRECTORY:
 348                 switch (mode) {
 349                 case LIST_ARTISTS:
 350                         break;
 351
 352                 case LIST_ALBUMS:
 353                         update_metalist(c, NULL, NULL);
 354                         list_window_reset(browser.lw);
 355                         /* restore previous list window state */
 356                         list_window_pop_state(browser.lw_state, browser.lw);
 357                         break;
 358
 359                 case LIST_SONGS:
 360                         update_metalist(c, g_strdup(artist), NULL);
 361                         list_window_reset(browser.lw);
 362                         /* restore previous list window state */
 363                         list_window_pop_state(browser.lw_state, browser.lw);
 364                         break;
 365                 }
 366                 break;
 367
 368         case CMD_GO_ROOT_DIRECTORY:
 369                 switch (mode) {
 370                 case LIST_ARTISTS:
 371                         break;
 372
 373                 case LIST_ALBUMS:
 374                 case LIST_SONGS:
 375                         update_metalist(c, NULL, NULL);
 376                         list_window_reset(browser.lw);
 377                         /* restore first list window state (pop while returning true) */
 378                         while(list_window_pop_state(browser.lw_state, browser.lw));
 379                         break;
 380                 }
 381                 break;
 382
 383         case CMD_SELECT:
 384                 switch(mode) {
 385                 case LIST_ARTISTS:
 386                         selected = g_list_nth_data(metalist,
 387                                                    browser.lw->selected);
 388                         if (selected == NULL)
 389                                 return 1;
 390
 391                         add_query(c, MPD_TABLE_ARTIST, selected);
 392                         cmd = CMD_LIST_NEXT; /* continue and select next item... */
 393                         break;
 394
 395                 case LIST_ALBUMS:
 396                         if (browser.lw->selected &&
 397                             browser.lw->selected == metalist_length - 1)
 398                                 add_query(c, MPD_TABLE_ARTIST, artist);
 399                         else if (browser.lw->selected > 0) {
 400                                 selected = g_list_nth_data(metalist,
 401                                                            browser.lw->selected);
 402                                 if (selected == NULL)
 403                                         return 1;
 404
 405                                 add_query(c, MPD_TABLE_ALBUM, selected);
 406                                 cmd = CMD_LIST_NEXT; /* continue and select next item... */
 407                         }
 408                         break;
 409
 410                 case LIST_SONGS:
 411                         if (browser_handle_select(&browser, c) == 0)
 412                                 /* continue and select next item... */
 413                                 cmd = CMD_LIST_NEXT;
 414                         break;
 415                 }
 416                 break;
 417
 418                 /* continue and update... */
 419         case CMD_SCREEN_UPDATE:
 420                 update_metalist(c, g_strdup(artist), g_strdup(album));
 421                 screen_status_printf(_("Screen updated!"));
 422                 return 0;
 423
 424         case CMD_LIST_FIND:
 425         case CMD_LIST_RFIND:
 426         case CMD_LIST_FIND_NEXT:
 427         case CMD_LIST_RFIND_NEXT:
 428                 if (browser.filelist)
 429                         return screen_find(screen,
 430                                            browser.lw, filelist_length(browser.filelist),
 431                                            cmd, browser_lw_callback,
 432                                            browser.filelist);
 433                 else if (metalist)
 434                         return screen_find(screen,
 435                                            browser.lw, metalist_length,
 436                                            cmd, artist_lw_callback, metalist);
 437                 else
 438                         return 1;
 439
 440         case CMD_MOUSE_EVENT:
 441                 return browser_handle_mouse_event(&browser, c);
 442
 443         default:
 444                 break;
 445         }
 446
 447         if (browser.filelist)
 448                 return list_window_cmd(browser.lw, filelist_length(browser.filelist), cmd);
 449         else if (metalist)
 450                 return list_window_cmd(browser.lw, metalist_length, cmd);
 451
 452         return 0;
 453 }
 454
 455 const struct screen_functions screen_artist = {
 456         .init = init,
 457         .exit = quit,
 458         .open = open,
 459         .resize = resize,
 460         .paint = paint,
 461         .update = update,
 462         .cmd = artist_cmd,
 463         .get_title = get_title,
 464 };
 465
 466 #endif /* ENABLE_ARTIST_SCREEN */