1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2010 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "screen_artist.h"
21 #include "screen_interface.h"
22 #include "screen_message.h"
23 #include "screen_find.h"
24 #include "screen_browser.h"
25 #include "screen.h"
26 #include "i18n.h"
27 #include "charset.h"
28 #include "mpdclient.h"
29 #include "screen_browser.h"
30 #include "filelist.h"
32 #include <assert.h>
33 #include <string.h>
34 #include <glib.h>
36 #define BUFSIZE 1024
38 typedef enum { LIST_ARTISTS, LIST_ALBUMS, LIST_SONGS } artist_mode_t;
40 static artist_mode_t mode = LIST_ARTISTS;
41 static GPtrArray *artist_list, *album_list;
42 static char *artist = NULL;
43 static char *album = NULL;
44 static char ALL_TRACKS[] = "";
46 static struct screen_browser browser;
48 static gint
49 compare_utf8(gconstpointer s1, gconstpointer s2)
50 {
51 const char *const*t1 = s1, *const*t2 = s2;
52 char *key1, *key2;
53 int n;
55 key1 = g_utf8_collate_key(*t1,-1);
56 key2 = g_utf8_collate_key(*t2,-1);
57 n = strcmp(key1,key2);
58 g_free(key1);
59 g_free(key2);
60 return n;
61 }
63 /* list_window callback */
64 static const char *
65 screen_artist_lw_callback(unsigned idx, void *data)
66 {
67 GPtrArray *list = data;
68 static char buf[BUFSIZE];
69 char *str, *str_utf8;
71 if (mode == LIST_ALBUMS) {
72 if (idx == 0)
73 return "..";
74 else if (idx == list->len + 1)
75 return _("All tracks");
77 --idx;
78 }
80 assert(idx < list->len);
82 str_utf8 = g_ptr_array_index(list, idx);
83 assert(str_utf8 != NULL);
85 str = utf8_to_locale(str_utf8);
86 g_strlcpy(buf, str, sizeof(buf));
87 g_free(str);
89 return buf;
90 }
92 static void
93 screen_artist_paint(void);
95 static void
96 artist_repaint(void)
97 {
98 screen_artist_paint();
99 wrefresh(browser.lw->w);
100 }
102 static void
103 string_array_free(GPtrArray *array)
104 {
105 unsigned i;
107 for (i = 0; i < array->len; ++i) {
108 char *value = g_ptr_array_index(array, i);
109 g_free(value);
110 }
112 g_ptr_array_free(array, TRUE);
113 }
115 static void
116 free_lists(void)
117 {
118 if (artist_list != NULL) {
119 string_array_free(artist_list);
120 artist_list = NULL;
121 }
123 if (album_list != NULL) {
124 string_array_free(album_list);
125 album_list = NULL;
126 }
128 if (browser.filelist) {
129 filelist_free(browser.filelist);
130 browser.filelist = NULL;
131 }
132 }
134 static void
135 recv_tag_values(struct mpd_connection *connection, enum mpd_tag_type tag,
136 GPtrArray *list)
137 {
138 struct mpd_pair *pair;
140 while ((pair = mpd_recv_pair_tag(connection, tag)) != NULL) {
141 g_ptr_array_add(list, g_strdup(pair->value));
142 mpd_return_pair(connection, pair);
143 }
144 }
146 static void
147 load_artist_list(struct mpdclient *c)
148 {
149 struct mpd_connection *connection = mpdclient_get_connection(c);
151 assert(mode == LIST_ARTISTS);
152 assert(artist == NULL);
153 assert(album == NULL);
154 assert(artist_list == NULL);
155 assert(album_list == NULL);
156 assert(browser.filelist == NULL);
158 artist_list = g_ptr_array_new();
160 if (connection != NULL) {
161 mpd_search_db_tags(connection, MPD_TAG_ARTIST);
162 mpd_search_commit(connection);
163 recv_tag_values(connection, MPD_TAG_ARTIST, artist_list);
165 if (!mpd_response_finish(connection))
166 mpdclient_handle_error(c);
167 }
169 /* sort list */
170 g_ptr_array_sort(artist_list, compare_utf8);
171 list_window_set_length(browser.lw, artist_list->len);
172 }
174 static void
175 load_album_list(struct mpdclient *c)
176 {
177 struct mpd_connection *connection = mpdclient_get_connection(c);
179 assert(mode == LIST_ALBUMS);
180 assert(artist != NULL);
181 assert(album == NULL);
182 assert(album_list == NULL);
183 assert(browser.filelist == NULL);
185 album_list = g_ptr_array_new();
187 if (connection != NULL) {
188 mpd_search_db_tags(connection, MPD_TAG_ALBUM);
189 mpd_search_add_tag_constraint(connection,
190 MPD_OPERATOR_DEFAULT,
191 MPD_TAG_ARTIST, artist);
192 mpd_search_commit(connection);
194 recv_tag_values(connection, MPD_TAG_ALBUM, album_list);
196 if (!mpd_response_finish(connection))
197 mpdclient_handle_error(c);
198 }
200 /* sort list */
201 g_ptr_array_sort(album_list, compare_utf8);
203 list_window_set_length(browser.lw, album_list->len + 2);
204 }
206 static void
207 load_song_list(struct mpdclient *c)
208 {
209 struct mpd_connection *connection = mpdclient_get_connection(c);
211 assert(mode == LIST_SONGS);
212 assert(artist != NULL);
213 assert(album != NULL);
214 assert(browser.filelist == NULL);
216 browser.filelist = filelist_new();
217 /* add a dummy entry for ".." */
218 filelist_append(browser.filelist, NULL);
220 if (connection != NULL) {
221 mpd_search_db_songs(connection, true);
222 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
223 MPD_TAG_ARTIST, artist);
224 if (album != ALL_TRACKS)
225 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
226 MPD_TAG_ALBUM, album);
227 mpd_search_commit(connection);
229 filelist_recv(browser.filelist, connection);
231 if (!mpd_response_finish(connection))
232 mpdclient_handle_error(c);
233 }
235 /* fix highlights */
236 screen_browser_sync_highlights(browser.filelist, &c->playlist);
237 list_window_set_length(browser.lw, filelist_length(browser.filelist));
238 }
240 static void
241 free_state(void)
242 {
243 g_free(artist);
244 if (album != ALL_TRACKS)
245 g_free(album);
246 artist = NULL;
247 album = NULL;
249 free_lists();
250 }
252 static void
253 open_artist_list(struct mpdclient *c)
254 {
255 free_state();
257 mode = LIST_ARTISTS;
258 load_artist_list(c);
259 }
261 static void
262 open_album_list(struct mpdclient *c, char *_artist)
263 {
264 assert(_artist != NULL);
266 free_state();
268 mode = LIST_ALBUMS;
269 artist = _artist;
270 load_album_list(c);
271 }
273 static void
274 open_song_list(struct mpdclient *c, char *_artist, char *_album)
275 {
276 assert(_artist != NULL);
277 assert(_album != NULL);
279 free_state();
281 mode = LIST_SONGS;
282 artist = _artist;
283 album = _album;
284 load_song_list(c);
285 }
287 static void
288 reload_lists(struct mpdclient *c)
289 {
290 free_lists();
292 switch (mode) {
293 case LIST_ARTISTS:
294 load_artist_list(c);
295 break;
297 case LIST_ALBUMS:
298 load_album_list(c);
299 break;
301 case LIST_SONGS:
302 load_song_list(c);
303 break;
304 }
305 }
307 static void
308 screen_artist_init(WINDOW *w, int cols, int rows)
309 {
310 browser.lw = list_window_init(w, cols, rows);
311 artist = NULL;
312 album = NULL;
313 }
315 static void
316 screen_artist_quit(void)
317 {
318 free_state();
319 list_window_free(browser.lw);
320 }
322 static void
323 screen_artist_open(struct mpdclient *c)
324 {
325 if (artist_list == NULL && album_list == NULL &&
326 browser.filelist == NULL)
327 reload_lists(c);
328 }
330 static void
331 screen_artist_resize(int cols, int rows)
332 {
333 list_window_resize(browser.lw, cols, rows);
334 }
336 /**
337 * Paint one item in the artist list.
338 */
339 static void
340 paint_artist_callback(WINDOW *w, unsigned i,
341 G_GNUC_UNUSED unsigned y, unsigned width,
342 bool selected, void *data)
343 {
344 GPtrArray *list = data;
345 char *p = utf8_to_locale(g_ptr_array_index(list, i));
347 screen_browser_paint_directory(w, width, selected, p);
348 g_free(p);
349 }
351 /**
352 * Paint one item in the album list. There are two virtual items
353 * inserted: at the beginning, there's the special item ".." to go to
354 * the parent directory, and at the end, there's the item "All tracks"
355 * to view the tracks of all albums.
356 */
357 static void
358 paint_album_callback(WINDOW *w, unsigned i,
359 G_GNUC_UNUSED unsigned y, unsigned width,
360 bool selected, void *data)
361 {
362 GPtrArray *list = data;
363 const char *p;
364 char *q = NULL;
366 if (i == 0)
367 p = "..";
368 else if (i == list->len + 1)
369 p = _("All tracks");
370 else
371 p = q = utf8_to_locale(g_ptr_array_index(list, i - 1));
373 screen_browser_paint_directory(w, width, selected, p);
374 g_free(q);
375 }
377 static void
378 screen_artist_paint(void)
379 {
380 if (browser.filelist) {
381 screen_browser_paint(&browser);
382 } else if (album_list != NULL)
383 list_window_paint2(browser.lw,
384 paint_album_callback, album_list);
385 else if (artist_list != NULL)
386 list_window_paint2(browser.lw,
387 paint_artist_callback, artist_list);
388 else {
389 wmove(browser.lw->w, 0, 0);
390 wclrtobot(browser.lw->w);
391 }
392 }
394 static const char *
395 screen_artist_get_title(char *str, size_t size)
396 {
397 char *s1, *s2;
399 switch(mode) {
400 case LIST_ARTISTS:
401 g_snprintf(str, size, _("All artists"));
402 break;
404 case LIST_ALBUMS:
405 s1 = utf8_to_locale(artist);
406 g_snprintf(str, size, _("Albums of artist: %s"), s1);
407 g_free(s1);
408 break;
410 case LIST_SONGS:
411 s1 = utf8_to_locale(artist);
413 if (album == ALL_TRACKS)
414 g_snprintf(str, size,
415 _("All tracks of artist: %s"), s1);
416 else if (*album != 0) {
417 s2 = utf8_to_locale(album);
418 g_snprintf(str, size, _("Album: %s - %s"), s1, s2);
419 g_free(s2);
420 } else
421 g_snprintf(str, size,
422 _("Tracks of no album of artist: %s"), s1);
423 g_free(s1);
424 break;
425 }
427 return str;
428 }
430 static void
431 screen_artist_update(struct mpdclient *c)
432 {
433 if (browser.filelist == NULL)
434 return;
436 if (c->events & MPD_IDLE_DATABASE)
437 /* the db has changed -> update the list */
438 reload_lists(c);
440 if (c->events & (MPD_IDLE_DATABASE | MPD_IDLE_QUEUE))
441 screen_browser_sync_highlights(browser.filelist, &c->playlist);
443 if (c->events & (MPD_IDLE_DATABASE
444 #ifndef NCMPC_MINI
445 | MPD_IDLE_QUEUE
446 #endif
447 ))
448 artist_repaint();
449 }
451 /* add_query - Add all songs satisfying specified criteria.
452 _artist is actually only used in the ALBUM case to distinguish albums with
453 the same name from different artists. */
454 static void
455 add_query(struct mpdclient *c, enum mpd_tag_type table, const char *_filter,
456 const char *_artist)
457 {
458 struct mpd_connection *connection = mpdclient_get_connection(c);
459 char *str;
460 struct filelist *addlist;
462 assert(_filter != NULL);
464 if (connection == NULL)
465 return;
467 str = utf8_to_locale(_filter);
468 if (table == MPD_TAG_ALBUM)
469 screen_status_printf(_("Adding album %s..."), str);
470 else
471 screen_status_printf(_("Adding %s..."), str);
472 g_free(str);
474 mpd_search_db_songs(connection, true);
475 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
476 table, _filter);
477 if (table == MPD_TAG_ALBUM)
478 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
479 MPD_TAG_ARTIST, _artist);
480 mpd_search_commit(connection);
482 addlist = filelist_new_recv(connection);
484 if (mpd_response_finish(connection))
485 mpdclient_filelist_add_all(c, addlist);
486 else
487 mpdclient_handle_error(c);
489 filelist_free(addlist);
490 }
492 static int
493 screen_artist_lw_cmd(struct mpdclient *c, command_t cmd)
494 {
495 switch (mode) {
496 case LIST_ARTISTS:
497 case LIST_ALBUMS:
498 return list_window_cmd(browser.lw, cmd);
500 case LIST_SONGS:
501 return browser_cmd(&browser, c, cmd);
502 }
504 assert(0);
505 return 0;
506 }
508 static int
509 string_array_find(GPtrArray *array, const char *value)
510 {
511 guint i;
513 for (i = 0; i < array->len; ++i)
514 if (strcmp((const char*)g_ptr_array_index(array, i),
515 value) == 0)
516 return i;
518 return -1;
519 }
521 static bool
522 screen_artist_cmd(struct mpdclient *c, command_t cmd)
523 {
524 struct list_window_range range;
525 char *selected;
526 char *old;
527 char *old_ptr;
528 int idx;
530 switch(cmd) {
531 case CMD_PLAY:
532 switch (mode) {
533 case LIST_ARTISTS:
534 if (browser.lw->selected >= artist_list->len)
535 return true;
537 selected = g_ptr_array_index(artist_list,
538 browser.lw->selected);
539 open_album_list(c, g_strdup(selected));
540 list_window_reset(browser.lw);
542 artist_repaint();
543 return true;
545 case LIST_ALBUMS:
546 if (browser.lw->selected == 0) {
547 /* handle ".." */
548 old = g_strdup(artist);
550 open_artist_list(c);
551 list_window_reset(browser.lw);
552 /* restore previous list window state */
553 idx = string_array_find(artist_list, old);
554 g_free(old);
556 if (idx >= 0) {
557 list_window_set_cursor(browser.lw, idx);
558 list_window_center(browser.lw, idx);
559 }
560 } else if (browser.lw->selected == album_list->len + 1) {
561 /* handle "show all" */
562 open_song_list(c, g_strdup(artist), ALL_TRACKS);
563 list_window_reset(browser.lw);
564 } else {
565 /* select album */
566 selected = g_ptr_array_index(album_list,
567 browser.lw->selected - 1);
568 open_song_list(c, g_strdup(artist), g_strdup(selected));
569 list_window_reset(browser.lw);
570 }
572 artist_repaint();
573 return true;
575 case LIST_SONGS:
576 if (browser.lw->selected == 0) {
577 /* handle ".." */
578 old = g_strdup(album);
579 old_ptr = album;
581 open_album_list(c, g_strdup(artist));
582 list_window_reset(browser.lw);
583 /* restore previous list window state */
584 idx = old_ptr == ALL_TRACKS
585 ? (int)album_list->len
586 : string_array_find(album_list, old);
587 g_free(old);
589 if (idx >= 0) {
590 ++idx;
591 list_window_set_cursor(browser.lw, idx);
592 list_window_center(browser.lw, idx);
593 }
595 artist_repaint();
596 return true;
597 }
598 break;
599 }
600 break;
602 /* FIXME? CMD_GO_* handling duplicates code from CMD_PLAY */
604 case CMD_GO_PARENT_DIRECTORY:
605 switch (mode) {
606 case LIST_ARTISTS:
607 break;
609 case LIST_ALBUMS:
610 old = g_strdup(artist);
612 open_artist_list(c);
613 list_window_reset(browser.lw);
614 /* restore previous list window state */
615 idx = string_array_find(artist_list, old);
616 g_free(old);
618 if (idx >= 0) {
619 list_window_set_cursor(browser.lw, idx);
620 list_window_center(browser.lw, idx);
621 }
622 break;
624 case LIST_SONGS:
625 old = g_strdup(album);
626 old_ptr = album;
628 open_album_list(c, g_strdup(artist));
629 list_window_reset(browser.lw);
630 /* restore previous list window state */
631 idx = old_ptr == ALL_TRACKS
632 ? (int)album_list->len
633 : string_array_find(album_list, old);
634 g_free(old);
636 if (idx >= 0) {
637 ++idx;
638 list_window_set_cursor(browser.lw, idx);
639 list_window_center(browser.lw, idx);
640 }
641 break;
642 }
644 artist_repaint();
645 break;
647 case CMD_GO_ROOT_DIRECTORY:
648 switch (mode) {
649 case LIST_ARTISTS:
650 break;
652 case LIST_ALBUMS:
653 case LIST_SONGS:
654 open_artist_list(c);
655 list_window_reset(browser.lw);
656 /* restore first list window state (pop while returning true) */
657 /* XXX */
658 break;
659 }
661 artist_repaint();
662 break;
664 case CMD_SELECT:
665 case CMD_ADD:
666 switch(mode) {
667 case LIST_ARTISTS:
668 if (browser.lw->selected >= artist_list->len)
669 return true;
671 list_window_get_range(browser.lw, &range);
672 for (unsigned i = range.start; i < range.end; ++i) {
673 selected = g_ptr_array_index(artist_list, i);
674 add_query(c, MPD_TAG_ARTIST, selected, NULL);
675 cmd = CMD_LIST_NEXT; /* continue and select next item... */
676 }
677 break;
679 case LIST_ALBUMS:
680 list_window_get_range(browser.lw, &range);
681 for (unsigned i = range.start; i < range.end; ++i) {
682 if(i == album_list->len + 1)
683 add_query(c, MPD_TAG_ARTIST, artist, NULL);
684 else if (i > 0)
685 {
686 selected = g_ptr_array_index(album_list,
687 browser.lw->selected - 1);
688 add_query(c, MPD_TAG_ALBUM, selected, artist);
689 cmd = CMD_LIST_NEXT; /* continue and select next item... */
690 }
691 }
692 break;
694 case LIST_SONGS:
695 /* handled by browser_cmd() */
696 break;
697 }
698 break;
700 /* continue and update... */
701 case CMD_SCREEN_UPDATE:
702 reload_lists(c);
703 return false;
705 case CMD_LIST_FIND:
706 case CMD_LIST_RFIND:
707 case CMD_LIST_FIND_NEXT:
708 case CMD_LIST_RFIND_NEXT:
709 switch (mode) {
710 case LIST_ARTISTS:
711 screen_find(browser.lw, cmd,
712 screen_artist_lw_callback, artist_list);
713 artist_repaint();
714 return true;
716 case LIST_ALBUMS:
717 screen_find(browser.lw, cmd,
718 screen_artist_lw_callback, album_list);
719 artist_repaint();
720 return true;
722 case LIST_SONGS:
723 /* handled by browser_cmd() */
724 break;
725 }
726 case CMD_LIST_JUMP:
727 switch (mode) {
728 case LIST_ARTISTS:
729 screen_jump(browser.lw, screen_artist_lw_callback,
730 paint_artist_callback, artist_list);
731 artist_repaint();
732 return true;
734 case LIST_ALBUMS:
735 screen_jump(browser.lw, screen_artist_lw_callback,
736 paint_album_callback, album_list);
737 artist_repaint();
738 return true;
740 case LIST_SONGS:
741 /* handled by browser_cmd() */
742 break;
743 }
745 break;
747 default:
748 break;
749 }
751 if (screen_artist_lw_cmd(c, cmd)) {
752 if (screen_is_visible(&screen_artist))
753 artist_repaint();
754 return true;
755 }
757 return false;
758 }
760 const struct screen_functions screen_artist = {
761 .init = screen_artist_init,
762 .exit = screen_artist_quit,
763 .open = screen_artist_open,
764 .resize = screen_artist_resize,
765 .paint = screen_artist_paint,
766 .update = screen_artist_update,
767 .cmd = screen_artist_cmd,
768 .get_title = screen_artist_get_title,
769 };