1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2009 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_play.h"
21 #include "screen_interface.h"
22 #include "screen_file.h"
23 #include "screen_message.h"
24 #include "screen_find.h"
25 #include "config.h"
26 #include "i18n.h"
27 #include "charset.h"
28 #include "options.h"
29 #include "mpdclient.h"
30 #include "utils.h"
31 #include "strfsong.h"
32 #include "wreadln.h"
33 #include "colors.h"
34 #include "screen.h"
35 #include "screen_utils.h"
36 #include "screen_song.h"
37 #include "screen_lyrics.h"
39 #ifndef NCMPC_MINI
40 #include "hscroll.h"
41 #endif
43 #include <mpd/client.h>
45 #include <ctype.h>
46 #include <string.h>
47 #include <glib.h>
49 #define MAX_SONG_LENGTH 512
51 #ifndef NCMPC_MINI
52 typedef struct
53 {
54 GList **list;
55 GList **dir_list;
56 struct mpdclient *c;
57 } completion_callback_data_t;
59 static struct hscroll hscroll;
60 static guint scroll_source_id;
61 #endif
63 static struct mpdclient_playlist *playlist;
64 static int current_song_id = -1;
65 static int selected_song_id = -1;
66 static struct list_window *lw;
67 static guint timer_hide_cursor_id;
69 static void
70 screen_playlist_paint(void);
72 static void
73 playlist_repaint(void)
74 {
75 screen_playlist_paint();
76 wrefresh(lw->w);
77 }
79 static const struct mpd_song *
80 playlist_selected_song(void)
81 {
82 return !lw->range_selection &&
83 lw->selected < playlist_length(playlist)
84 ? playlist_get(playlist, lw->selected)
85 : NULL;
86 }
88 static void
89 playlist_save_selection(void)
90 {
91 selected_song_id = playlist_selected_song() != NULL
92 ? (int)mpd_song_get_id(playlist_selected_song())
93 : -1;
94 }
96 static void
97 playlist_restore_selection(void)
98 {
99 const struct mpd_song *song;
100 int pos;
102 if (selected_song_id < 0)
103 /* there was no selection */
104 return;
106 song = playlist_selected_song();
107 if (song != NULL &&
108 mpd_song_get_id(song) == (unsigned)selected_song_id)
109 /* selection is still valid */
110 return;
112 pos = playlist_get_index_from_id(playlist, selected_song_id);
113 if (pos >= 0)
114 lw->selected = pos;
116 list_window_check_selected(lw, playlist_length(playlist));
117 playlist_save_selection();
118 }
120 #ifndef NCMPC_MINI
121 static gboolean
122 scroll_timer_callback(G_GNUC_UNUSED gpointer data)
123 {
124 scroll_source_id = 0;
126 hscroll_step(&hscroll);
127 playlist_repaint();
128 return false;
129 }
130 #endif
132 static const char *
133 list_callback(unsigned idx, bool *highlight, char **second_column, G_GNUC_UNUSED void *data)
134 {
135 static char songname[MAX_SONG_LENGTH];
136 struct mpd_song *song;
138 if (playlist == NULL || idx >= playlist_length(playlist))
139 return NULL;
141 song = playlist_get(playlist, idx);
142 if ((int)mpd_song_get_id(song) == current_song_id)
143 *highlight = true;
145 strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
147 #ifndef NCMPC_MINI
148 if (second_column != NULL && mpd_song_get_duration(song) > 0) {
149 char duration[32];
150 format_duration_short(duration, sizeof(duration),
151 mpd_song_get_duration(song));
152 *second_column = g_strdup(duration);
153 }
155 if (idx == lw->selected)
156 {
157 int second_column_len = 0;
158 if (second_column != NULL && *second_column != NULL)
159 second_column_len = strlen(*second_column);
160 if (options.scroll && utf8_width(songname) > (unsigned)(COLS - second_column_len - 1) )
161 {
162 static unsigned current_song;
163 char *tmp;
165 if (current_song != lw->selected) {
166 hscroll_reset(&hscroll);
167 current_song = lw->selected;
168 }
170 tmp = strscroll(&hscroll, songname, options.scroll_sep,
171 MAX_SONG_LENGTH);
172 g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
173 g_free(tmp);
175 if (scroll_source_id == 0)
176 scroll_source_id =
177 g_timeout_add(1000,
178 scroll_timer_callback,
179 NULL);
180 } else {
181 hscroll_reset(&hscroll);
183 if (scroll_source_id != 0) {
184 g_source_remove(scroll_source_id);
185 scroll_source_id = 0;
186 }
187 }
188 }
189 #else
190 (void)second_column;
191 #endif
193 return songname;
194 }
196 static void
197 center_playing_item(struct mpdclient *c, bool center_cursor)
198 {
199 const struct mpd_song *song;
200 unsigned length = c->playlist.list->len;
201 int idx;
203 song = mpdclient_get_current_song(c);
204 if (song == NULL)
205 return;
207 /* try to center the song that are playing */
208 idx = playlist_get_index(&c->playlist, c->song);
209 if (idx < 0)
210 return;
212 if (length < lw->rows)
213 {
214 if (center_cursor)
215 list_window_set_cursor(lw, idx);
216 return;
217 }
219 list_window_center(lw, length, idx);
221 if (center_cursor) {
222 list_window_set_cursor(lw, idx);
223 return;
224 }
226 /* make sure the cursor is in the window */
227 list_window_fetch_cursor(lw, length);
228 }
230 #ifndef NCMPC_MINI
231 static void
232 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
233 void *data)
234 {
235 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
236 GList **list = tmp->list;
237 struct mpdclient *c = tmp->c;
239 if( *list == NULL ) {
240 /* create completion list */
241 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
242 g_completion_add_items(gcmp, *list);
243 }
244 }
246 static void
247 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
248 G_GNUC_UNUSED gchar *line, GList *items,
249 G_GNUC_UNUSED void *data)
250 {
251 if (g_list_length(items) >= 1)
252 screen_display_completion_list(items);
253 }
254 #endif
256 #ifndef NCMPC_MINI
257 /**
258 * Wrapper for strncmp(). We are not allowed to pass &strncmp to
259 * g_completion_set_compare(), because strncmp() takes size_t where
260 * g_completion_set_compare passes a gsize value.
261 */
262 static gint
263 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
264 {
265 return strncmp(s1, s2, n);
266 }
267 #endif
269 int
270 playlist_save(struct mpdclient *c, char *name, char *defaultname)
271 {
272 struct mpd_connection *connection;
273 gchar *filename, *filename_utf8;
274 #ifndef NCMPC_MINI
275 GCompletion *gcmp;
276 GList *list = NULL;
277 completion_callback_data_t data;
278 #endif
280 #ifdef NCMPC_MINI
281 (void)defaultname;
282 #endif
284 #ifndef NCMPC_MINI
285 if (name == NULL) {
286 /* initialize completion support */
287 gcmp = g_completion_new(NULL);
288 g_completion_set_compare(gcmp, completion_strncmp);
289 data.list = &list;
290 data.dir_list = NULL;
291 data.c = c;
292 wrln_completion_callback_data = &data;
293 wrln_pre_completion_callback = save_pre_completion_cb;
294 wrln_post_completion_callback = save_post_completion_cb;
297 /* query the user for a filename */
298 filename = screen_readln(_("Save playlist as"),
299 defaultname,
300 NULL,
301 gcmp);
303 /* destroy completion support */
304 wrln_completion_callback_data = NULL;
305 wrln_pre_completion_callback = NULL;
306 wrln_post_completion_callback = NULL;
307 g_completion_free(gcmp);
308 list = string_list_free(list);
309 if( filename )
310 filename=g_strstrip(filename);
311 } else
312 #endif
313 filename=g_strdup(name);
315 if (filename == NULL)
316 return -1;
318 /* send save command to mpd */
320 filename_utf8 = locale_to_utf8(filename);
322 connection = mpdclient_get_connection(c);
323 if (!mpd_run_save(connection, filename_utf8)) {
324 if (mpd_connection_get_error(connection) == MPD_ERROR_SERVER &&
325 mpd_connection_get_server_error(connection) == MPD_SERVER_ERROR_EXIST &&
326 mpd_connection_clear_error(connection)) {
327 char *buf;
328 int key;
330 buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
331 filename, YES, NO);
332 key = tolower(screen_getch(buf));
333 g_free(buf);
335 if (key != YES[0]) {
336 g_free(filename_utf8);
337 g_free(filename);
338 screen_status_printf(_("Aborted"));
339 return -1;
340 }
342 if (!mpd_run_rm(connection, filename_utf8) ||
343 !mpd_run_save(connection, filename_utf8)) {
344 mpdclient_handle_error(c);
345 g_free(filename_utf8);
346 g_free(filename);
347 return -1;
348 }
349 } else {
350 mpdclient_handle_error(c);
351 g_free(filename_utf8);
352 g_free(filename);
353 return -1;
354 }
355 }
357 c->events |= MPD_IDLE_STORED_PLAYLIST;
359 g_free(filename_utf8);
361 /* success */
362 screen_status_printf(_("Saved %s"), filename);
363 g_free(filename);
364 return 0;
365 }
367 #ifndef NCMPC_MINI
368 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
369 GList **list, struct mpdclient *c)
370 {
371 g_completion_remove_items(gcmp, *list);
372 *list = string_list_remove(*list, dir);
373 *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
374 g_completion_add_items(gcmp, *list);
375 *dir_list = g_list_append(*dir_list, g_strdup(dir));
376 }
378 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
379 {
380 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
381 GList **dir_list = tmp->dir_list;
382 GList **list = tmp->list;
383 struct mpdclient *c = tmp->c;
385 if (*list == NULL) {
386 /* create initial list */
387 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
388 g_completion_add_items(gcmp, *list);
389 } else if (line && line[0] && line[strlen(line)-1]=='/' &&
390 string_list_find(*dir_list, line) == NULL) {
391 /* add directory content to list */
392 add_dir(gcmp, line, dir_list, list, c);
393 }
394 }
396 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
397 GList *items, void *data)
398 {
399 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
400 GList **dir_list = tmp->dir_list;
401 GList **list = tmp->list;
402 struct mpdclient *c = tmp->c;
404 if (g_list_length(items) >= 1)
405 screen_display_completion_list(items);
407 if (line && line[0] && line[strlen(line) - 1] == '/' &&
408 string_list_find(*dir_list, line) == NULL) {
409 /* add directory content to list */
410 add_dir(gcmp, line, dir_list, list, c);
411 }
412 }
413 #endif
415 static int
416 handle_add_to_playlist(struct mpdclient *c)
417 {
418 gchar *path;
419 #ifndef NCMPC_MINI
420 GCompletion *gcmp;
421 GList *list = NULL;
422 GList *dir_list = NULL;
423 completion_callback_data_t data;
425 /* initialize completion support */
426 gcmp = g_completion_new(NULL);
427 g_completion_set_compare(gcmp, completion_strncmp);
428 data.list = &list;
429 data.dir_list = &dir_list;
430 data.c = c;
431 wrln_completion_callback_data = &data;
432 wrln_pre_completion_callback = add_pre_completion_cb;
433 wrln_post_completion_callback = add_post_completion_cb;
434 #endif
436 /* get path */
437 path = screen_readln(_("Add"),
438 NULL,
439 NULL,
440 #ifdef NCMPC_MINI
441 NULL
442 #else
443 gcmp
444 #endif
445 );
447 /* destroy completion data */
448 #ifndef NCMPC_MINI
449 wrln_completion_callback_data = NULL;
450 wrln_pre_completion_callback = NULL;
451 wrln_post_completion_callback = NULL;
452 g_completion_free(gcmp);
453 string_list_free(list);
454 string_list_free(dir_list);
455 #endif
457 /* add the path to the playlist */
458 if (path != NULL) {
459 char *path_utf8 = locale_to_utf8(path);
460 mpdclient_cmd_add_path(c, path_utf8);
461 g_free(path_utf8);
462 }
464 g_free(path);
465 return 0;
466 }
468 static void
469 screen_playlist_init(WINDOW *w, int cols, int rows)
470 {
471 lw = list_window_init(w, cols, rows);
472 }
474 static gboolean
475 timer_hide_cursor(gpointer data)
476 {
477 struct mpdclient *c = data;
479 assert(options.hide_cursor > 0);
480 assert(timer_hide_cursor_id != 0);
482 timer_hide_cursor_id = 0;
484 /* hide the cursor when mpd is playing and the user is inactive */
486 if (c->status != NULL &&
487 mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
488 lw->hide_cursor = true;
489 playlist_repaint();
490 } else
491 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
492 timer_hide_cursor, c);
494 return FALSE;
495 }
497 static void
498 screen_playlist_open(struct mpdclient *c)
499 {
500 playlist = &c->playlist;
502 assert(timer_hide_cursor_id == 0);
503 if (options.hide_cursor > 0) {
504 lw->hide_cursor = false;
505 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
506 timer_hide_cursor, c);
507 }
509 playlist_restore_selection();
510 }
512 static void
513 screen_playlist_close(void)
514 {
515 if (timer_hide_cursor_id != 0) {
516 g_source_remove(timer_hide_cursor_id);
517 timer_hide_cursor_id = 0;
518 }
519 }
521 static void
522 screen_playlist_resize(int cols, int rows)
523 {
524 lw->cols = cols;
525 lw->rows = rows;
526 }
529 static void
530 screen_playlist_exit(void)
531 {
532 list_window_free(lw);
533 }
535 static const char *
536 screen_playlist_title(char *str, size_t size)
537 {
538 if (options.host == NULL)
539 return _("Playlist");
541 g_snprintf(str, size, _("Playlist on %s"), options.host);
542 return str;
543 }
545 static void
546 screen_playlist_paint(void)
547 {
548 list_window_paint(lw, list_callback, NULL);
549 }
551 static void
552 screen_playlist_update(struct mpdclient *c)
553 {
554 static int prev_song_id = -1;
556 if (c->events & MPD_IDLE_PLAYLIST)
557 playlist_restore_selection();
559 current_song_id = c->status != NULL &&
560 (mpd_status_get_state(c->status) == MPD_STATE_PLAY ||
561 mpd_status_get_state(c->status) == MPD_STATE_PAUSE)
562 ? (int)mpd_status_get_song_id(c->status) : -1;
564 if (current_song_id != prev_song_id) {
565 prev_song_id = current_song_id;
567 /* center the cursor */
568 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
569 center_playing_item(c, false);
571 playlist_repaint();
572 } else if (c->events & MPD_IDLE_PLAYLIST) {
573 /* the playlist has changed, we must paint the new
574 version */
575 playlist_repaint();
576 }
577 }
579 #ifdef HAVE_GETMOUSE
580 static bool
581 handle_mouse_event(struct mpdclient *c)
582 {
583 int row;
584 unsigned selected;
585 unsigned long bstate;
587 if (screen_get_mouse_event(c, &bstate, &row) ||
588 list_window_mouse(lw, playlist_length(playlist), bstate, row)) {
589 playlist_repaint();
590 return true;
591 }
593 if (bstate & BUTTON1_DOUBLE_CLICKED) {
594 /* stop */
595 screen_cmd(c, CMD_STOP);
596 return true;
597 }
599 selected = lw->start + row;
601 if (bstate & BUTTON1_CLICKED) {
602 /* play */
603 if (lw->start + row < playlist_length(playlist))
604 mpdclient_cmd_play(c, lw->start + row);
605 } else if (bstate & BUTTON3_CLICKED) {
606 /* delete */
607 if (selected == lw->selected)
608 mpdclient_cmd_delete(c, lw->selected);
609 }
611 lw->selected = selected;
612 list_window_check_selected(lw, playlist_length(playlist));
613 playlist_save_selection();
614 playlist_repaint();
616 return true;
617 }
618 #endif
620 static bool
621 screen_playlist_cmd(struct mpdclient *c, command_t cmd)
622 {
623 struct mpd_connection *connection;
624 static command_t cached_cmd = CMD_NONE;
625 command_t prev_cmd = cached_cmd;
626 cached_cmd = cmd;
628 lw->hide_cursor = false;
630 if (options.hide_cursor > 0) {
631 if (timer_hide_cursor_id != 0)
632 g_source_remove(timer_hide_cursor_id);
633 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
634 timer_hide_cursor, c);
635 }
637 if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
638 playlist_save_selection();
639 playlist_repaint();
640 return true;
641 }
643 switch(cmd) {
644 case CMD_SCREEN_UPDATE:
645 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
646 playlist_repaint();
647 return false;
648 case CMD_SELECT_PLAYING:
649 list_window_set_cursor(lw, playlist_get_index(&c->playlist,
650 c->song));
651 playlist_save_selection();
652 playlist_repaint();
653 return true;
655 case CMD_LIST_FIND:
656 case CMD_LIST_RFIND:
657 case CMD_LIST_FIND_NEXT:
658 case CMD_LIST_RFIND_NEXT:
659 screen_find(lw, playlist_length(&c->playlist),
660 cmd, list_callback, NULL);
661 playlist_save_selection();
662 playlist_repaint();
663 return true;
664 case CMD_LIST_JUMP:
665 screen_jump(lw, list_callback, NULL);
666 playlist_save_selection();
667 playlist_repaint();
668 return true;
670 #ifdef HAVE_GETMOUSE
671 case CMD_MOUSE_EVENT:
672 return handle_mouse_event(c);
673 #endif
675 #ifdef ENABLE_SONG_SCREEN
676 case CMD_SCREEN_SONG:
677 if (playlist_selected_song()) {
678 screen_song_switch(c, playlist_selected_song());
679 return true;
680 }
682 break;
683 #endif
685 #ifdef ENABLE_LYRICS_SCREEN
686 case CMD_SCREEN_LYRICS:
687 if (lw->selected < playlist_length(&c->playlist)) {
688 struct mpd_song *selected = playlist_get(&c->playlist, lw->selected);
689 bool follow = false;
691 if (c->song && selected &&
692 !strcmp(mpd_song_get_uri(selected),
693 mpd_song_get_uri(c->song)))
694 follow = true;
696 screen_lyrics_switch(c, selected, follow);
697 return true;
698 }
700 break;
701 #endif
702 case CMD_SCREEN_SWAP:
703 screen_swap(c, playlist_get(&c->playlist, lw->selected));
704 return true;
706 default:
707 break;
708 }
710 if (!mpdclient_is_connected(c))
711 return false;
713 switch(cmd) {
714 case CMD_PLAY:
715 mpdclient_cmd_play(c, lw->selected);
716 return true;
718 case CMD_DELETE:
719 if (lw->range_selection) {
720 mpdclient_cmd_delete_range(c, lw->selected_start,
721 lw->selected_end + 1);
722 } else {
723 mpdclient_cmd_delete(c, lw->selected);
724 }
726 lw->selected = lw->selected_end = lw->selected_start;
727 lw->range_selection = false;
728 return true;
730 case CMD_SAVE_PLAYLIST:
731 playlist_save(c, NULL, NULL);
732 return true;
734 case CMD_ADD:
735 handle_add_to_playlist(c);
736 return true;
738 case CMD_SHUFFLE:
739 if(!lw->range_selection)
740 /* No range selection, shuffle all list. */
741 break;
743 connection = mpdclient_get_connection(c);
744 if (mpd_run_shuffle_range(connection, lw->selected_start,
745 lw->selected_end + 1))
746 screen_status_message(_("Shuffled playlist"));
747 else
748 mpdclient_handle_error(c);
749 return true;
751 case CMD_LIST_MOVE_UP:
752 if(lw->selected_start == 0)
753 return false;
754 if(lw->range_selection)
755 {
756 unsigned i = lw->selected_start;
757 unsigned last_selected = lw->selected;
758 for(; i <= lw->selected_end; ++i)
759 mpdclient_cmd_move(c, i, i-1);
760 lw->selected_start--;
761 lw->selected_end--;
762 lw->selected = last_selected - 1;
763 lw->range_base--;
764 }
765 else
766 {
767 mpdclient_cmd_move(c, lw->selected, lw->selected-1);
768 lw->selected--;
769 lw->selected_start--;
770 lw->selected_end--;
771 }
773 playlist_save_selection();
774 return true;
776 case CMD_LIST_MOVE_DOWN:
777 if(lw->selected_end+1 >= playlist_length(&c->playlist))
778 return false;
779 if(lw->range_selection)
780 {
781 int i = lw->selected_end;
782 unsigned last_selected = lw->selected;
783 for(; i >= (int)lw->selected_start; --i)
784 mpdclient_cmd_move(c, i, i+1);
785 lw->selected_start++;
786 lw->selected_end++;
787 lw->selected = last_selected + 1;
788 lw->range_base++;
789 }
790 else
791 {
792 mpdclient_cmd_move(c, lw->selected, lw->selected+1);
793 lw->selected++;
794 lw->selected_start++;
795 lw->selected_end++;
796 }
798 playlist_save_selection();
799 return true;
801 case CMD_LOCATE:
802 if (playlist_selected_song()) {
803 screen_file_goto_song(c, playlist_selected_song());
804 return true;
805 }
807 break;
809 default:
810 break;
811 }
813 return false;
814 }
816 const struct screen_functions screen_playlist = {
817 .init = screen_playlist_init,
818 .exit = screen_playlist_exit,
819 .open = screen_playlist_open,
820 .close = screen_playlist_close,
821 .resize = screen_playlist_resize,
822 .paint = screen_playlist_paint,
823 .update = screen_playlist_update,
824 .cmd = screen_playlist_cmd,
825 .get_title = screen_playlist_title,
826 };