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 "config.h"
21 #include "i18n.h"
22 #include "charset.h"
23 #include "options.h"
24 #include "mpdclient.h"
25 #include "utils.h"
26 #include "strfsong.h"
27 #include "wreadln.h"
28 #include "command.h"
29 #include "colors.h"
30 #include "screen.h"
31 #include "screen_utils.h"
32 #include "screen_play.h"
34 #ifndef NCMPC_MINI
35 #include "hscroll.h"
36 #endif
38 #include <ctype.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <time.h>
42 #include <glib.h>
44 #define MAX_SONG_LENGTH 512
46 #ifndef NCMPC_MINI
47 typedef struct
48 {
49 GList **list;
50 GList **dir_list;
51 mpdclient_t *c;
52 } completion_callback_data_t;
53 #endif
55 static struct mpdclient_playlist *playlist;
56 static int current_song_id = -1;
57 static list_window_t *lw = NULL;
58 static guint timer_hide_cursor_id;
60 static void
61 play_paint(void);
63 static void
64 playlist_repaint(void)
65 {
66 play_paint();
67 wrefresh(lw->w);
68 }
70 static void
71 playlist_repaint_if_active(void)
72 {
73 if (screen_is_visible(&screen_playlist))
74 playlist_repaint();
75 }
77 static void
78 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
79 {
80 switch (event) {
81 case PLAYLIST_EVENT_DELETE:
82 break;
83 case PLAYLIST_EVENT_MOVE:
84 if(lw->range_selection < 0)
85 {
86 lw->selected = *((int *) data);
87 if (lw->selected < lw->start)
88 lw->start--;
89 }
90 break;
91 default:
92 break;
93 }
95 list_window_check_selected(lw, c->playlist.list->len);
96 playlist_repaint_if_active();
97 }
99 static char *
100 format_duration(int duration)
101 {
102 return g_strdup_printf("%d:%02d", duration / 60, duration % 60);
103 }
105 static const char *
106 list_callback(unsigned idx, bool *highlight, char **second_column, G_GNUC_UNUSED void *data)
107 {
108 static char songname[MAX_SONG_LENGTH];
109 #ifndef NCMPC_MINI
110 static scroll_state_t st;
111 #endif
112 mpd_Song *song;
114 if (playlist == NULL || idx >= playlist_length(playlist))
115 return NULL;
117 song = playlist_get(playlist, idx);
118 if (song->id == current_song_id)
119 *highlight = true;
121 strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
123 #ifndef NCMPC_MINI
124 if(second_column)
125 *second_column = format_duration(song->time);
127 if ((unsigned)song->pos == lw->selected)
128 {
129 if (options.scroll && utf8_width(songname) > (unsigned)COLS)
130 {
131 static unsigned current_song;
132 char *tmp;
134 if (current_song != lw->selected) {
135 st.offset = 0;
136 current_song = lw->selected;
137 }
139 tmp = strscroll(songname, options.scroll_sep,
140 MAX_SONG_LENGTH, &st);
141 g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
142 g_free(tmp);
143 }
144 else
145 st.offset = 0;
146 }
147 #else
148 (void)second_column;
149 #endif
151 return songname;
152 }
154 static void
155 center_playing_item(mpdclient_t *c, bool center_cursor)
156 {
157 unsigned length = c->playlist.list->len;
158 int idx;
160 if (!c->song || c->status == NULL ||
161 IS_STOPPED(c->status->state))
162 return;
164 /* try to center the song that are playing */
165 idx = playlist_get_index(c, c->song);
166 if (idx < 0)
167 return;
169 if (length < lw->rows)
170 {
171 if (center_cursor)
172 list_window_set_selected(lw, idx);
173 return;
174 }
176 list_window_center(lw, length, idx);
178 if (center_cursor) {
179 list_window_set_selected(lw, idx);
180 return;
181 }
183 /* make sure the cursor is in the window */
184 if (lw->selected < lw->start + options.scroll_offset) {
185 if (lw->start > 0)
186 lw->selected = lw->start + options.scroll_offset;
187 if (lw->range_selection) {
188 lw->selected_start = lw->range_base;
189 lw->selected_end = lw->selected;
190 } else {
191 lw->selected_start = lw->selected;
192 lw->selected_end = lw->selected;
193 }
194 } else if (lw->selected > lw->start + lw->rows - 1 - options.scroll_offset) {
195 if (lw->start + lw->rows < length)
196 lw->selected = lw->start + lw->rows - 1 - options.scroll_offset;
197 if (lw->range_selection) {
198 lw->selected_start = lw->selected;
199 lw->selected_end = lw->range_base;
200 } else {
201 lw->selected_start = lw->selected;
202 lw->selected_end = lw->selected;
203 }
204 }
205 }
207 #ifndef NCMPC_MINI
208 static void
209 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
210 void *data)
211 {
212 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
213 GList **list = tmp->list;
214 mpdclient_t *c = tmp->c;
216 if( *list == NULL ) {
217 /* create completion list */
218 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
219 g_completion_add_items(gcmp, *list);
220 }
221 }
223 static void
224 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
225 G_GNUC_UNUSED gchar *line, GList *items,
226 G_GNUC_UNUSED void *data)
227 {
228 if (g_list_length(items) >= 1)
229 screen_display_completion_list(items);
230 }
231 #endif
233 #ifndef NCMPC_MINI
234 /**
235 * Wrapper for strncmp(). We are not allowed to pass &strncmp to
236 * g_completion_set_compare(), because strncmp() takes size_t where
237 * g_completion_set_compare passes a gsize value.
238 */
239 static gint
240 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
241 {
242 return strncmp(s1, s2, n);
243 }
244 #endif
246 int
247 playlist_save(mpdclient_t *c, char *name, char *defaultname)
248 {
249 gchar *filename, *filename_utf8;
250 gint error;
251 #ifndef NCMPC_MINI
252 GCompletion *gcmp;
253 GList *list = NULL;
254 completion_callback_data_t data;
255 #endif
257 #ifdef NCMPC_MINI
258 (void)defaultname;
259 #endif
261 #ifndef NCMPC_MINI
262 if (name == NULL) {
263 /* initialize completion support */
264 gcmp = g_completion_new(NULL);
265 g_completion_set_compare(gcmp, completion_strncmp);
266 data.list = &list;
267 data.dir_list = NULL;
268 data.c = c;
269 wrln_completion_callback_data = &data;
270 wrln_pre_completion_callback = save_pre_completion_cb;
271 wrln_post_completion_callback = save_post_completion_cb;
274 /* query the user for a filename */
275 filename = screen_readln(screen.status_window.w,
276 _("Save playlist as"),
277 defaultname,
278 NULL,
279 gcmp);
281 /* destroy completion support */
282 wrln_completion_callback_data = NULL;
283 wrln_pre_completion_callback = NULL;
284 wrln_post_completion_callback = NULL;
285 g_completion_free(gcmp);
286 list = string_list_free(list);
287 if( filename )
288 filename=g_strstrip(filename);
289 } else
290 #endif
291 filename=g_strdup(name);
293 if (filename == NULL)
294 return -1;
296 /* send save command to mpd */
298 filename_utf8 = locale_to_utf8(filename);
299 error = mpdclient_cmd_save_playlist(c, filename_utf8);
300 g_free(filename_utf8);
302 if (error) {
303 gint code = GET_ACK_ERROR_CODE(error);
305 if (code == MPD_ACK_ERROR_EXIST) {
306 char *buf;
307 int key;
309 buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
310 filename, YES, NO);
311 key = tolower(screen_getch(screen.status_window.w,
312 buf));
313 g_free(buf);
315 if (key == YES[0]) {
316 filename_utf8 = locale_to_utf8(filename);
317 error = mpdclient_cmd_delete_playlist(c, filename_utf8);
318 g_free(filename_utf8);
320 if (error) {
321 g_free(filename);
322 return -1;
323 }
325 error = playlist_save(c, filename, NULL);
326 g_free(filename);
327 return error;
328 }
330 screen_status_printf(_("Aborted"));
331 }
333 g_free(filename);
334 return -1;
335 }
337 /* success */
338 screen_status_printf(_("Saved %s"), filename);
339 g_free(filename);
340 return 0;
341 }
343 #ifndef NCMPC_MINI
344 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
345 GList **list, mpdclient_t *c)
346 {
347 g_completion_remove_items(gcmp, *list);
348 *list = string_list_remove(*list, dir);
349 *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
350 g_completion_add_items(gcmp, *list);
351 *dir_list = g_list_append(*dir_list, g_strdup(dir));
352 }
354 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
355 {
356 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
357 GList **dir_list = tmp->dir_list;
358 GList **list = tmp->list;
359 mpdclient_t *c = tmp->c;
361 if (*list == NULL) {
362 /* create initial list */
363 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
364 g_completion_add_items(gcmp, *list);
365 } else if (line && line[0] && line[strlen(line)-1]=='/' &&
366 string_list_find(*dir_list, line) == NULL) {
367 /* add directory content to list */
368 add_dir(gcmp, line, dir_list, list, c);
369 }
370 }
372 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
373 GList *items, void *data)
374 {
375 completion_callback_data_t *tmp = (completion_callback_data_t *)data;
376 GList **dir_list = tmp->dir_list;
377 GList **list = tmp->list;
378 mpdclient_t *c = tmp->c;
380 if (g_list_length(items) >= 1)
381 screen_display_completion_list(items);
383 if (line && line[0] && line[strlen(line) - 1] == '/' &&
384 string_list_find(*dir_list, line) == NULL) {
385 /* add directory content to list */
386 add_dir(gcmp, line, dir_list, list, c);
387 }
388 }
389 #endif
391 static int
392 handle_add_to_playlist(mpdclient_t *c)
393 {
394 gchar *path;
395 #ifndef NCMPC_MINI
396 GCompletion *gcmp;
397 GList *list = NULL;
398 GList *dir_list = NULL;
399 completion_callback_data_t data;
401 /* initialize completion support */
402 gcmp = g_completion_new(NULL);
403 g_completion_set_compare(gcmp, completion_strncmp);
404 data.list = &list;
405 data.dir_list = &dir_list;
406 data.c = c;
407 wrln_completion_callback_data = &data;
408 wrln_pre_completion_callback = add_pre_completion_cb;
409 wrln_post_completion_callback = add_post_completion_cb;
410 #endif
412 /* get path */
413 path = screen_readln(screen.status_window.w,
414 _("Add"),
415 NULL,
416 NULL,
417 #ifdef NCMPC_MINI
418 NULL
419 #else
420 gcmp
421 #endif
422 );
424 /* destroy completion data */
425 #ifndef NCMPC_MINI
426 wrln_completion_callback_data = NULL;
427 wrln_pre_completion_callback = NULL;
428 wrln_post_completion_callback = NULL;
429 g_completion_free(gcmp);
430 string_list_free(list);
431 string_list_free(dir_list);
432 #endif
434 /* add the path to the playlist */
435 if (path != NULL) {
436 char *path_utf8 = locale_to_utf8(path);
437 mpdclient_cmd_add_path(c, path_utf8);
438 g_free(path_utf8);
439 }
441 g_free(path);
442 return 0;
443 }
445 static void
446 play_init(WINDOW *w, int cols, int rows)
447 {
448 lw = list_window_init(w, cols, rows);
449 }
451 static gboolean
452 timer_hide_cursor(gpointer data)
453 {
454 struct mpdclient *c = data;
456 assert(options.hide_cursor > 0);
457 assert(timer_hide_cursor_id != 0);
459 timer_hide_cursor_id = 0;
461 /* hide the cursor when mpd is playing and the user is inactive */
463 if (c->status != NULL && c->status->state == MPD_STATUS_STATE_PLAY) {
464 lw->hide_cursor = true;
465 playlist_repaint();
466 } else
467 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
468 timer_hide_cursor, c);
470 return FALSE;
471 }
473 static void
474 play_open(mpdclient_t *c)
475 {
476 static gboolean install_cb = TRUE;
478 playlist = &c->playlist;
480 assert(timer_hide_cursor_id == 0);
481 if (options.hide_cursor > 0) {
482 lw->hide_cursor = false;
483 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
484 timer_hide_cursor, c);
485 }
487 if (install_cb) {
488 mpdclient_install_playlist_callback(c, playlist_changed_callback);
489 install_cb = FALSE;
490 }
491 }
493 static void
494 play_close(void)
495 {
496 if (timer_hide_cursor_id != 0) {
497 g_source_remove(timer_hide_cursor_id);
498 timer_hide_cursor_id = 0;
499 }
500 }
502 static void
503 play_resize(int cols, int rows)
504 {
505 lw->cols = cols;
506 lw->rows = rows;
507 }
510 static void
511 play_exit(void)
512 {
513 list_window_free(lw);
514 }
516 static const char *
517 play_title(char *str, size_t size)
518 {
519 if( strcmp(options.host, "localhost") == 0 )
520 return _("Playlist");
522 g_snprintf(str, size, _("Playlist on %s"), options.host);
523 return str;
524 }
526 static void
527 play_paint(void)
528 {
529 list_window_paint(lw, list_callback, NULL);
530 }
532 static void
533 play_update(mpdclient_t *c)
534 {
535 static int prev_song_id = -1;
537 current_song_id = c->song != NULL && c->status != NULL &&
538 !IS_STOPPED(c->status->state) ? c->song->id : -1;
540 if (current_song_id != prev_song_id) {
541 prev_song_id = current_song_id;
543 /* center the cursor */
544 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
545 center_playing_item(c, false);
547 playlist_repaint();
548 #ifndef NCMPC_MINI
549 } else if (options.scroll) {
550 /* always repaint if horizontal scrolling is
551 enabled */
552 playlist_repaint();
553 #endif
554 }
555 }
557 #ifdef HAVE_GETMOUSE
558 static bool
559 handle_mouse_event(struct mpdclient *c)
560 {
561 int row;
562 unsigned selected;
563 unsigned long bstate;
565 if (screen_get_mouse_event(c, &bstate, &row) ||
566 list_window_mouse(lw, playlist_length(playlist), bstate, row)) {
567 playlist_repaint();
568 return true;
569 }
571 if (bstate & BUTTON1_DOUBLE_CLICKED) {
572 /* stop */
573 screen_cmd(c, CMD_STOP);
574 return true;
575 }
577 selected = lw->start + row;
579 if (bstate & BUTTON1_CLICKED) {
580 /* play */
581 if (lw->start + row < playlist_length(playlist))
582 mpdclient_cmd_play(c, lw->start + row);
583 } else if (bstate & BUTTON3_CLICKED) {
584 /* delete */
585 if (selected == lw->selected)
586 mpdclient_cmd_delete(c, lw->selected);
587 }
589 lw->selected = selected;
590 list_window_check_selected(lw, playlist_length(playlist));
591 playlist_repaint();
593 return true;
594 }
595 #endif
597 static bool
598 play_cmd(mpdclient_t *c, command_t cmd)
599 {
600 static command_t cached_cmd = CMD_NONE;
601 command_t prev_cmd = cached_cmd;
602 cached_cmd = cmd;
604 lw->hide_cursor = false;
606 if (options.hide_cursor > 0) {
607 if (timer_hide_cursor_id != 0)
608 g_source_remove(timer_hide_cursor_id);
609 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
610 timer_hide_cursor, c);
611 }
613 if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
614 playlist_repaint();
615 return true;
616 }
618 switch(cmd) {
619 case CMD_PLAY:
620 mpdclient_cmd_play(c, lw->selected);
621 return true;
622 case CMD_DELETE:
623 {
624 int i = lw->selected_end, start = lw->selected_start;
625 for(; i >= start; --i)
626 mpdclient_cmd_delete(c, i);
628 i++;
629 if(i >= (int)playlist_length(&c->playlist))
630 i--;
631 lw->selected = i;
632 lw->selected_start = i;
633 lw->selected_end = i;
634 lw->range_selection = false;
636 return true;
637 }
638 case CMD_SAVE_PLAYLIST:
639 playlist_save(c, NULL, NULL);
640 return true;
641 case CMD_ADD:
642 handle_add_to_playlist(c);
643 return true;
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_selected(lw, playlist_get_index(c, c->song));
650 return true;
651 case CMD_SHUFFLE:
652 {
653 if(!lw->range_selection)
654 /* No range selection, shuffle all list. */
655 break;
657 if (mpdclient_cmd_shuffle_range(c, lw->selected_start, lw->selected_end+1) == 0)
658 screen_status_message(_("Shuffled playlist"));
660 return true;
661 }
662 case CMD_LIST_MOVE_UP:
663 if(lw->selected_start == 0)
664 return false;
665 if(lw->range_selection)
666 {
667 unsigned i = lw->selected_start;
668 unsigned last_selected = lw->selected;
669 for(; i <= lw->selected_end; ++i)
670 mpdclient_cmd_move(c, i, i-1);
671 lw->selected_start--;
672 lw->selected_end--;
673 lw->selected = last_selected - 1;
674 lw->range_base--;
675 }
676 else
677 {
678 mpdclient_cmd_move(c, lw->selected, lw->selected-1);
679 lw->selected--;
680 lw->selected_start--;
681 lw->selected_end--;
682 }
683 return true;
684 case CMD_LIST_MOVE_DOWN:
685 if(lw->selected_end+1 >= playlist_length(&c->playlist))
686 return false;
687 if(lw->range_selection)
688 {
689 int i = lw->selected_end;
690 unsigned last_selected = lw->selected;
691 for(; i >= (int)lw->selected_start; --i)
692 mpdclient_cmd_move(c, i, i+1);
693 lw->selected_start++;
694 lw->selected_end++;
695 lw->selected = last_selected + 1;
696 lw->range_base++;
697 }
698 else
699 {
700 mpdclient_cmd_move(c, lw->selected, lw->selected+1);
701 lw->selected++;
702 lw->selected_start++;
703 lw->selected_end++;
704 }
705 return true;
706 case CMD_LIST_FIND:
707 case CMD_LIST_RFIND:
708 case CMD_LIST_FIND_NEXT:
709 case CMD_LIST_RFIND_NEXT:
710 screen_find(lw, playlist_length(&c->playlist),
711 cmd, list_callback, NULL);
712 playlist_repaint();
713 return true;
714 case CMD_LIST_JUMP:
715 screen_jump(lw, list_callback, NULL);
716 playlist_repaint();
717 return true;
719 #ifdef HAVE_GETMOUSE
720 case CMD_MOUSE_EVENT:
721 return handle_mouse_event(c);
722 #endif
724 #ifdef ENABLE_SONG_SCREEN
725 case CMD_SCREEN_SONG:
726 if (lw->selected < playlist_length(&c->playlist)) {
727 screen_song_switch(c, playlist_get(&c->playlist, lw->selected));
728 return true;
729 }
731 break;
732 #endif
734 case CMD_LOCATE:
735 if (lw->selected < playlist_length(&c->playlist)) {
736 screen_file_goto_song(c, playlist_get(&c->playlist, lw->selected));
737 return true;
738 }
740 break;
742 #ifdef ENABLE_LYRICS_SCREEN
743 case CMD_SCREEN_LYRICS:
744 if (lw->selected < playlist_length(&c->playlist)) {
745 screen_lyrics_switch(c, playlist_get(&c->playlist, lw->selected));
746 return true;
747 }
749 break;
750 #endif
751 case CMD_SCREEN_SWAP:
752 screen_swap(c, playlist_get(&c->playlist, lw->selected));
753 return true;
755 default:
756 break;
757 }
759 return false;
760 }
762 const struct screen_functions screen_playlist = {
763 .init = play_init,
764 .exit = play_exit,
765 .open = play_open,
766 .close = play_close,
767 .resize = play_resize,
768 .paint = play_paint,
769 .update = play_update,
770 .cmd = play_cmd,
771 .get_title = play_title,
772 };