750e9409372643526037c973c93a7c783353d3e1
1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2009 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
4 *
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.
9 *
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.
14 *
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_queue.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_queue_paint(void);
72 static void
73 screen_queue_repaint(void)
74 {
75 screen_queue_paint();
76 wrefresh(lw->w);
77 }
79 static const struct mpd_song *
80 screen_queue_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 screen_queue_save_selection(void)
90 {
91 selected_song_id = screen_queue_selected_song() != NULL
92 ? (int)mpd_song_get_id(screen_queue_selected_song())
93 : -1;
94 }
96 static void
97 screen_queue_restore_selection(void)
98 {
99 const struct mpd_song *song;
100 int pos;
102 list_window_set_length(lw, playlist_length(playlist));
104 if (selected_song_id < 0)
105 /* there was no selection */
106 return;
108 song = screen_queue_selected_song();
109 if (song != NULL &&
110 mpd_song_get_id(song) == (unsigned)selected_song_id)
111 /* selection is still valid */
112 return;
114 pos = playlist_get_index_from_id(playlist, selected_song_id);
115 if (pos >= 0)
116 list_window_set_cursor(lw, pos);
118 screen_queue_save_selection();
119 }
121 #ifndef NCMPC_MINI
122 static gboolean
123 scroll_timer_callback(G_GNUC_UNUSED gpointer data)
124 {
125 scroll_source_id = 0;
127 hscroll_step(&hscroll);
128 screen_queue_repaint();
129 return false;
130 }
131 #endif
133 static const char *
134 screen_queue_lw_callback(unsigned idx, bool *highlight, char **second_column,
135 G_GNUC_UNUSED void *data)
136 {
137 static char songname[MAX_SONG_LENGTH];
138 struct mpd_song *song;
140 assert(playlist != NULL);
141 assert(idx < playlist_length(playlist));
143 song = playlist_get(playlist, idx);
144 if ((int)mpd_song_get_id(song) == current_song_id)
145 *highlight = true;
147 strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
149 #ifndef NCMPC_MINI
150 if (second_column != NULL && mpd_song_get_duration(song) > 0) {
151 char duration[32];
152 format_duration_short(duration, sizeof(duration),
153 mpd_song_get_duration(song));
154 *second_column = g_strdup(duration);
155 }
157 if (idx == lw->selected)
158 {
159 int second_column_len = 0;
160 if (second_column != NULL && *second_column != NULL)
161 second_column_len = strlen(*second_column);
162 if (options.scroll && utf8_width(songname) > (unsigned)(COLS - second_column_len - 1) )
163 {
164 static unsigned current_song;
165 char *tmp;
167 if (current_song != lw->selected) {
168 hscroll_reset(&hscroll);
169 current_song = lw->selected;
170 }
172 tmp = strscroll(&hscroll, songname, options.scroll_sep,
173 MAX_SONG_LENGTH);
174 g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
175 g_free(tmp);
177 if (scroll_source_id == 0)
178 scroll_source_id =
179 g_timeout_add(1000,
180 scroll_timer_callback,
181 NULL);
182 } else {
183 hscroll_reset(&hscroll);
185 if (scroll_source_id != 0) {
186 g_source_remove(scroll_source_id);
187 scroll_source_id = 0;
188 }
189 }
190 }
191 #else
192 (void)second_column;
193 #endif
195 return songname;
196 }
198 static void
199 center_playing_item(struct mpdclient *c, bool center_cursor)
200 {
201 const struct mpd_song *song;
202 unsigned length = c->playlist.list->len;
203 int idx;
205 song = mpdclient_get_current_song(c);
206 if (song == NULL)
207 return;
209 /* try to center the song that are playing */
210 idx = playlist_get_index(&c->playlist, c->song);
211 if (idx < 0)
212 return;
214 if (length < lw->rows)
215 {
216 if (center_cursor)
217 list_window_set_cursor(lw, idx);
218 return;
219 }
221 list_window_center(lw, idx);
223 if (center_cursor) {
224 list_window_set_cursor(lw, idx);
225 return;
226 }
228 /* make sure the cursor is in the window */
229 list_window_fetch_cursor(lw);
230 }
232 #ifndef NCMPC_MINI
233 static void
234 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
235 void *data)
236 {
237 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
238 GList **list = tmp->list;
239 struct mpdclient *c = tmp->c;
241 if( *list == NULL ) {
242 /* create completion list */
243 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
244 g_completion_add_items(gcmp, *list);
245 }
246 }
248 static void
249 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
250 G_GNUC_UNUSED gchar *line, GList *items,
251 G_GNUC_UNUSED void *data)
252 {
253 if (g_list_length(items) >= 1)
254 screen_display_completion_list(items);
255 }
256 #endif
258 #ifndef NCMPC_MINI
259 /**
260 * Wrapper for strncmp(). We are not allowed to pass &strncmp to
261 * g_completion_set_compare(), because strncmp() takes size_t where
262 * g_completion_set_compare passes a gsize value.
263 */
264 static gint
265 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
266 {
267 return strncmp(s1, s2, n);
268 }
269 #endif
271 int
272 playlist_save(struct mpdclient *c, char *name, char *defaultname)
273 {
274 struct mpd_connection *connection;
275 gchar *filename, *filename_utf8;
276 #ifndef NCMPC_MINI
277 GCompletion *gcmp;
278 GList *list = NULL;
279 completion_callback_data_t data;
280 #endif
282 #ifdef NCMPC_MINI
283 (void)defaultname;
284 #endif
286 #ifndef NCMPC_MINI
287 if (name == NULL) {
288 /* initialize completion support */
289 gcmp = g_completion_new(NULL);
290 g_completion_set_compare(gcmp, completion_strncmp);
291 data.list = &list;
292 data.dir_list = NULL;
293 data.c = c;
294 wrln_completion_callback_data = &data;
295 wrln_pre_completion_callback = save_pre_completion_cb;
296 wrln_post_completion_callback = save_post_completion_cb;
299 /* query the user for a filename */
300 filename = screen_readln(_("Save playlist as"),
301 defaultname,
302 NULL,
303 gcmp);
305 /* destroy completion support */
306 wrln_completion_callback_data = NULL;
307 wrln_pre_completion_callback = NULL;
308 wrln_post_completion_callback = NULL;
309 g_completion_free(gcmp);
310 list = string_list_free(list);
311 if( filename )
312 filename=g_strstrip(filename);
313 } else
314 #endif
315 filename=g_strdup(name);
317 if (filename == NULL)
318 return -1;
320 /* send save command to mpd */
322 filename_utf8 = locale_to_utf8(filename);
324 connection = mpdclient_get_connection(c);
325 if (!mpd_run_save(connection, filename_utf8)) {
326 if (mpd_connection_get_error(connection) == MPD_ERROR_SERVER &&
327 mpd_connection_get_server_error(connection) == MPD_SERVER_ERROR_EXIST &&
328 mpd_connection_clear_error(connection)) {
329 char *buf;
330 int key;
332 buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
333 filename, YES, NO);
334 key = tolower(screen_getch(buf));
335 g_free(buf);
337 if (key != YES[0]) {
338 g_free(filename_utf8);
339 g_free(filename);
340 screen_status_printf(_("Aborted"));
341 return -1;
342 }
344 if (!mpd_run_rm(connection, filename_utf8) ||
345 !mpd_run_save(connection, filename_utf8)) {
346 mpdclient_handle_error(c);
347 g_free(filename_utf8);
348 g_free(filename);
349 return -1;
350 }
351 } else {
352 mpdclient_handle_error(c);
353 g_free(filename_utf8);
354 g_free(filename);
355 return -1;
356 }
357 }
359 c->events |= MPD_IDLE_STORED_PLAYLIST;
361 g_free(filename_utf8);
363 /* success */
364 screen_status_printf(_("Saved %s"), filename);
365 g_free(filename);
366 return 0;
367 }
369 #ifndef NCMPC_MINI
370 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
371 GList **list, struct mpdclient *c)
372 {
373 g_completion_remove_items(gcmp, *list);
374 *list = string_list_remove(*list, dir);
375 *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
376 g_completion_add_items(gcmp, *list);
377 *dir_list = g_list_append(*dir_list, g_strdup(dir));
378 }
380 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
381 {
382 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
383 GList **dir_list = tmp->dir_list;
384 GList **list = tmp->list;
385 struct mpdclient *c = tmp->c;
387 if (*list == NULL) {
388 /* create initial list */
389 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
390 g_completion_add_items(gcmp, *list);
391 } else if (line && line[0] && line[strlen(line)-1]=='/' &&
392 string_list_find(*dir_list, line) == NULL) {
393 /* add directory content to list */
394 add_dir(gcmp, line, dir_list, list, c);
395 }
396 }
398 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
399 GList *items, void *data)
400 {
401 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
402 GList **dir_list = tmp->dir_list;
403 GList **list = tmp->list;
404 struct mpdclient *c = tmp->c;
406 if (g_list_length(items) >= 1)
407 screen_display_completion_list(items);
409 if (line && line[0] && line[strlen(line) - 1] == '/' &&
410 string_list_find(*dir_list, line) == NULL) {
411 /* add directory content to list */
412 add_dir(gcmp, line, dir_list, list, c);
413 }
414 }
415 #endif
417 static int
418 handle_add_to_playlist(struct mpdclient *c)
419 {
420 gchar *path;
421 #ifndef NCMPC_MINI
422 GCompletion *gcmp;
423 GList *list = NULL;
424 GList *dir_list = NULL;
425 completion_callback_data_t data;
427 /* initialize completion support */
428 gcmp = g_completion_new(NULL);
429 g_completion_set_compare(gcmp, completion_strncmp);
430 data.list = &list;
431 data.dir_list = &dir_list;
432 data.c = c;
433 wrln_completion_callback_data = &data;
434 wrln_pre_completion_callback = add_pre_completion_cb;
435 wrln_post_completion_callback = add_post_completion_cb;
436 #endif
438 /* get path */
439 path = screen_readln(_("Add"),
440 NULL,
441 NULL,
442 #ifdef NCMPC_MINI
443 NULL
444 #else
445 gcmp
446 #endif
447 );
449 /* destroy completion data */
450 #ifndef NCMPC_MINI
451 wrln_completion_callback_data = NULL;
452 wrln_pre_completion_callback = NULL;
453 wrln_post_completion_callback = NULL;
454 g_completion_free(gcmp);
455 string_list_free(list);
456 string_list_free(dir_list);
457 #endif
459 /* add the path to the playlist */
460 if (path != NULL) {
461 char *path_utf8 = locale_to_utf8(path);
462 mpdclient_cmd_add_path(c, path_utf8);
463 g_free(path_utf8);
464 }
466 g_free(path);
467 return 0;
468 }
470 static void
471 screen_queue_init(WINDOW *w, int cols, int rows)
472 {
473 lw = list_window_init(w, cols, rows);
474 }
476 static gboolean
477 timer_hide_cursor(gpointer data)
478 {
479 struct mpdclient *c = data;
481 assert(options.hide_cursor > 0);
482 assert(timer_hide_cursor_id != 0);
484 timer_hide_cursor_id = 0;
486 /* hide the cursor when mpd is playing and the user is inactive */
488 if (c->status != NULL &&
489 mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
490 lw->hide_cursor = true;
491 screen_queue_repaint();
492 } else
493 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
494 timer_hide_cursor, c);
496 return FALSE;
497 }
499 static void
500 screen_queue_open(struct mpdclient *c)
501 {
502 playlist = &c->playlist;
504 assert(timer_hide_cursor_id == 0);
505 if (options.hide_cursor > 0) {
506 lw->hide_cursor = false;
507 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
508 timer_hide_cursor, c);
509 }
511 screen_queue_restore_selection();
512 }
514 static void
515 screen_queue_close(void)
516 {
517 if (timer_hide_cursor_id != 0) {
518 g_source_remove(timer_hide_cursor_id);
519 timer_hide_cursor_id = 0;
520 }
521 }
523 static void
524 screen_queue_resize(int cols, int rows)
525 {
526 list_window_resize(lw, cols, rows);
527 }
530 static void
531 screen_queue_exit(void)
532 {
533 list_window_free(lw);
534 }
536 static const char *
537 screen_queue_title(char *str, size_t size)
538 {
539 if (options.host == NULL)
540 return _("Playlist");
542 g_snprintf(str, size, _("Playlist on %s"), options.host);
543 return str;
544 }
546 static void
547 screen_queue_paint(void)
548 {
549 list_window_paint(lw, screen_queue_lw_callback, NULL);
550 }
552 G_GNUC_PURE
553 static int
554 get_current_song_id(const struct mpd_status *status)
555 {
556 return status != NULL &&
557 (mpd_status_get_state(status) == MPD_STATE_PLAY ||
558 mpd_status_get_state(status) == MPD_STATE_PAUSE)
559 ? (int)mpd_status_get_song_id(status)
560 : -1;
561 }
563 static void
564 screen_queue_update(struct mpdclient *c)
565 {
566 if (c->events & MPD_IDLE_PLAYLIST)
567 screen_queue_restore_selection();
569 if ((c->events & MPD_IDLE_PLAYER) != 0 &&
570 get_current_song_id(c->status) != current_song_id) {
571 current_song_id = get_current_song_id(c->status);
573 /* center the cursor */
574 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
575 center_playing_item(c, false);
577 screen_queue_repaint();
578 } else if (c->events & MPD_IDLE_PLAYLIST) {
579 /* the playlist has changed, we must paint the new
580 version */
581 screen_queue_repaint();
582 }
583 }
585 #ifdef HAVE_GETMOUSE
586 static bool
587 handle_mouse_event(struct mpdclient *c)
588 {
589 int row;
590 unsigned selected;
591 unsigned long bstate;
593 if (screen_get_mouse_event(c, &bstate, &row) ||
594 list_window_mouse(lw, bstate, row)) {
595 screen_queue_repaint();
596 return true;
597 }
599 if (bstate & BUTTON1_DOUBLE_CLICKED) {
600 /* stop */
601 screen_cmd(c, CMD_STOP);
602 return true;
603 }
605 selected = lw->start + row;
607 if (bstate & BUTTON1_CLICKED) {
608 /* play */
609 if (lw->start + row < playlist_length(playlist))
610 mpdclient_cmd_play(c, lw->start + row);
611 } else if (bstate & BUTTON3_CLICKED) {
612 /* delete */
613 if (selected == lw->selected)
614 mpdclient_cmd_delete(c, lw->selected);
615 }
617 list_window_set_cursor(lw, selected);
618 screen_queue_save_selection();
619 screen_queue_repaint();
621 return true;
622 }
623 #endif
625 static bool
626 screen_queue_cmd(struct mpdclient *c, command_t cmd)
627 {
628 struct mpd_connection *connection;
629 static command_t cached_cmd = CMD_NONE;
630 command_t prev_cmd = cached_cmd;
631 struct list_window_range range;
633 cached_cmd = cmd;
635 lw->hide_cursor = false;
637 if (options.hide_cursor > 0) {
638 if (timer_hide_cursor_id != 0)
639 g_source_remove(timer_hide_cursor_id);
640 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
641 timer_hide_cursor, c);
642 }
644 if (list_window_cmd(lw, cmd)) {
645 screen_queue_save_selection();
646 screen_queue_repaint();
647 return true;
648 }
650 switch(cmd) {
651 case CMD_SCREEN_UPDATE:
652 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
653 screen_queue_repaint();
654 return false;
655 case CMD_SELECT_PLAYING:
656 list_window_set_cursor(lw, playlist_get_index(&c->playlist,
657 c->song));
658 screen_queue_save_selection();
659 screen_queue_repaint();
660 return true;
662 case CMD_LIST_FIND:
663 case CMD_LIST_RFIND:
664 case CMD_LIST_FIND_NEXT:
665 case CMD_LIST_RFIND_NEXT:
666 screen_find(lw, cmd, screen_queue_lw_callback, NULL);
667 screen_queue_save_selection();
668 screen_queue_repaint();
669 return true;
670 case CMD_LIST_JUMP:
671 screen_jump(lw, screen_queue_lw_callback, NULL, NULL);
672 screen_queue_save_selection();
673 screen_queue_repaint();
674 return true;
676 #ifdef HAVE_GETMOUSE
677 case CMD_MOUSE_EVENT:
678 return handle_mouse_event(c);
679 #endif
681 #ifdef ENABLE_SONG_SCREEN
682 case CMD_SCREEN_SONG:
683 if (screen_queue_selected_song() != NULL) {
684 screen_song_switch(c, screen_queue_selected_song());
685 return true;
686 }
688 break;
689 #endif
691 #ifdef ENABLE_LYRICS_SCREEN
692 case CMD_SCREEN_LYRICS:
693 if (lw->selected < playlist_length(&c->playlist)) {
694 struct mpd_song *selected = playlist_get(&c->playlist, lw->selected);
695 bool follow = false;
697 if (c->song && selected &&
698 !strcmp(mpd_song_get_uri(selected),
699 mpd_song_get_uri(c->song)))
700 follow = true;
702 screen_lyrics_switch(c, selected, follow);
703 return true;
704 }
706 break;
707 #endif
708 case CMD_SCREEN_SWAP:
709 screen_swap(c, playlist_get(&c->playlist, lw->selected));
710 return true;
712 default:
713 break;
714 }
716 if (!mpdclient_is_connected(c))
717 return false;
719 switch(cmd) {
720 case CMD_PLAY:
721 mpdclient_cmd_play(c, lw->selected);
722 return true;
724 case CMD_DELETE:
725 list_window_get_range(lw, &range);
726 mpdclient_cmd_delete_range(c, range.start, range.end);
728 list_window_set_cursor(lw, range.start);
729 return true;
731 case CMD_SAVE_PLAYLIST:
732 playlist_save(c, NULL, NULL);
733 return true;
735 case CMD_ADD:
736 handle_add_to_playlist(c);
737 return true;
739 case CMD_SHUFFLE:
740 list_window_get_range(lw, &range);
741 if (range.end < range.start + 1)
742 /* No range selection, shuffle all list. */
743 break;
745 connection = mpdclient_get_connection(c);
746 if (mpd_run_shuffle_range(connection, range.start, range.end))
747 screen_status_message(_("Shuffled playlist"));
748 else
749 mpdclient_handle_error(c);
750 return true;
752 case CMD_LIST_MOVE_UP:
753 list_window_get_range(lw, &range);
754 if (range.start == 0 || range.end <= range.start)
755 return false;
757 for (unsigned i = range.start; i < range.end; ++i)
758 mpdclient_cmd_move(c, i, i - 1);
760 lw->selected--;
761 lw->range_base--;
763 screen_queue_save_selection();
764 return true;
766 case CMD_LIST_MOVE_DOWN:
767 list_window_get_range(lw, &range);
768 if (range.end >= playlist_length(&c->playlist))
769 return false;
771 for (int i = range.end - 1; i >= (int)range.start; --i)
772 mpdclient_cmd_move(c, i, i + 1);
774 lw->selected++;
775 lw->range_base++;
777 screen_queue_save_selection();
778 return true;
780 case CMD_LOCATE:
781 if (screen_queue_selected_song() != NULL) {
782 screen_file_goto_song(c, screen_queue_selected_song());
783 return true;
784 }
786 break;
788 default:
789 break;
790 }
792 return false;
793 }
795 const struct screen_functions screen_queue = {
796 .init = screen_queue_init,
797 .exit = screen_queue_exit,
798 .open = screen_queue_open,
799 .close = screen_queue_close,
800 .resize = screen_queue_resize,
801 .paint = screen_queue_paint,
802 .update = screen_queue_update,
803 .cmd = screen_queue_cmd,
804 .get_title = screen_queue_title,
805 };