1f7b7a6ef69f7a028a837da5442699c41d51f5bc
1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2017 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.h"
21 #include "screen_interface.h"
22 #include "screen_list.h"
23 #include "screen_utils.h"
24 #include "screen_status.h"
25 #include "config.h"
26 #include "i18n.h"
27 #include "charset.h"
28 #include "mpdclient.h"
29 #include "utils.h"
30 #include "options.h"
31 #include "colors.h"
32 #include "player_command.h"
33 #include "screen_help.h"
34 #include "screen_queue.h"
35 #include "screen_file.h"
36 #include "screen_artist.h"
37 #include "screen_search.h"
38 #include "screen_song.h"
39 #include "screen_keydef.h"
40 #include "screen_lyrics.h"
41 #include "screen_outputs.h"
42 #include "screen_chat.h"
44 #include <mpd/client.h>
46 #include <stdlib.h>
47 #include <unistd.h>
48 #include <string.h>
49 #include <time.h>
50 #include <locale.h>
52 #ifndef NCMPC_MINI
53 /** welcome message time [s] */
54 static const GTime SCREEN_WELCOME_TIME = 10;
55 #endif
57 /* minimum window size */
58 static const int SCREEN_MIN_COLS = 14;
59 static const int SCREEN_MIN_ROWS = 5;
61 /* screens */
63 struct screen screen;
64 static const struct screen_functions *mode_fn = &screen_queue;
65 static const struct screen_functions *mode_fn_prev = &screen_queue;
67 gboolean
68 screen_is_visible(const struct screen_functions *sf)
69 {
70 return sf == mode_fn;
71 }
73 void
74 screen_switch(const struct screen_functions *sf, struct mpdclient *c)
75 {
76 assert(sf != NULL);
78 if (sf == mode_fn)
79 return;
81 mode_fn_prev = mode_fn;
83 /* close the old mode */
84 if (mode_fn->close != NULL)
85 mode_fn->close();
87 /* get functions for the new mode */
88 mode_fn = sf;
90 /* open the new mode */
91 if (mode_fn->open != NULL)
92 mode_fn->open(c);
94 screen_paint(c);
95 }
97 void
98 screen_swap(struct mpdclient *c, const struct mpd_song *song)
99 {
100 if (song != NULL)
101 {
102 if (false)
103 { /* just a hack to make the ifdefs less ugly */ }
104 #ifdef ENABLE_SONG_SCREEN
105 if (mode_fn_prev == &screen_song)
106 screen_song_switch(c, song);
107 #endif
108 #ifdef ENABLE_LYRICS_SCREEN
109 else if (mode_fn_prev == &screen_lyrics)
110 screen_lyrics_switch(c, song, true);
111 #endif
112 else
113 screen_switch(mode_fn_prev, c);
114 }
115 else
116 screen_switch(mode_fn_prev, c);
117 }
119 static int
120 find_configured_screen(const char *name)
121 {
122 unsigned i;
124 for (i = 0; options.screen_list[i] != NULL; ++i)
125 if (strcmp(options.screen_list[i], name) == 0)
126 return i;
128 return -1;
129 }
131 static void
132 screen_next_mode(struct mpdclient *c, int offset)
133 {
134 int max = g_strv_length(options.screen_list);
136 /* find current screen */
137 int current = find_configured_screen(screen_get_name(mode_fn));
138 int next = current + offset;
139 if (next<0)
140 next = max-1;
141 else if (next>=max)
142 next = 0;
144 const struct screen_functions *sf =
145 screen_lookup_name(options.screen_list[next]);
146 if (sf != NULL)
147 screen_switch(sf, c);
148 }
150 static void
151 paint_top_window(const struct mpdclient *c)
152 {
153 const char *title =
154 #ifndef NCMPC_MINI
155 screen.welcome_source_id == 0 &&
156 #endif
157 mode_fn->get_title != NULL
158 ? mode_fn->get_title(screen.buf, screen.buf_size)
159 : "";
160 assert(title != NULL);
162 title_bar_paint(&screen.title_bar, title, c->status);
163 }
165 static void
166 update_progress_window(struct mpdclient *c, bool repaint)
167 {
168 unsigned elapsed;
169 if (c->status == NULL)
170 elapsed = 0;
171 else if (seek_id >= 0 && seek_id == mpd_status_get_song_id(c->status))
172 elapsed = seek_target_time;
173 else
174 elapsed = mpd_status_get_elapsed_time(c->status);
176 unsigned duration = mpdclient_is_playing(c)
177 ? mpd_status_get_total_time(c->status)
178 : 0;
180 if (progress_bar_set(&screen.progress_bar, elapsed, duration) ||
181 repaint)
182 progress_bar_paint(&screen.progress_bar);
183 }
185 void
186 screen_exit(void)
187 {
188 if (mode_fn->close != NULL)
189 mode_fn->close();
191 screen_list_exit();
193 string_list_free(screen.find_history);
194 g_free(screen.buf);
195 g_free(screen.findbuf);
197 title_bar_deinit(&screen.title_bar);
198 delwin(screen.main_window.w);
199 progress_bar_deinit(&screen.progress_bar);
200 status_bar_deinit(&screen.status_bar);
202 #ifndef NCMPC_MINI
203 if (screen.welcome_source_id != 0)
204 g_source_remove(screen.welcome_source_id);
205 #endif
206 }
208 void
209 screen_resize(struct mpdclient *c)
210 {
211 if (COLS<SCREEN_MIN_COLS || LINES<SCREEN_MIN_ROWS) {
212 screen_exit();
213 fprintf(stderr, "%s\n", _("Error: Screen too small"));
214 exit(EXIT_FAILURE);
215 }
216 #ifdef PDCURSES
217 resize_term(LINES, COLS);
218 #else
219 resizeterm(LINES, COLS);
220 #endif
222 screen.cols = COLS;
223 screen.rows = LINES;
225 title_bar_resize(&screen.title_bar, screen.cols);
227 /* main window */
228 screen.main_window.cols = screen.cols;
229 screen.main_window.rows = screen.rows-4;
230 wresize(screen.main_window.w, screen.main_window.rows, screen.cols);
232 /* progress window */
233 progress_bar_resize(&screen.progress_bar, screen.cols,
234 screen.rows - 2, 0);
236 /* status window */
237 status_bar_resize(&screen.status_bar, screen.cols, screen.rows - 1, 0);
239 screen.buf_size = screen.cols;
240 g_free(screen.buf);
241 screen.buf = g_malloc(screen.cols);
243 /* resize all screens */
244 screen_list_resize(screen.main_window.cols, screen.main_window.rows);
246 /* ? - without this the cursor becomes visible with aterm & Eterm */
247 curs_set(1);
248 curs_set(0);
250 screen_paint(c);
251 }
253 #ifndef NCMPC_MINI
254 static gboolean
255 welcome_timer_callback(gpointer data)
256 {
257 struct mpdclient *c = data;
259 screen.welcome_source_id = 0;
261 paint_top_window(c);
262 doupdate();
264 return false;
265 }
266 #endif
268 void
269 screen_init(struct mpdclient *c)
270 {
271 if (COLS < SCREEN_MIN_COLS || LINES < SCREEN_MIN_ROWS) {
272 fprintf(stderr, "%s\n", _("Error: Screen too small"));
273 exit(EXIT_FAILURE);
274 }
276 screen.cols = COLS;
277 screen.rows = LINES;
279 screen.buf = g_malloc(screen.cols);
280 screen.buf_size = screen.cols;
281 screen.findbuf = NULL;
283 #ifndef NCMPC_MINI
284 if (options.welcome_screen_list)
285 screen.welcome_source_id =
286 g_timeout_add_seconds(SCREEN_WELCOME_TIME,
287 welcome_timer_callback, c);
288 #endif
290 /* create top window */
291 title_bar_init(&screen.title_bar, screen.cols, 0, 0);
293 /* create main window */
294 window_init(&screen.main_window, screen.rows - 4, screen.cols, 2, 0);
296 if (!options.hardware_cursor)
297 leaveok(screen.main_window.w, TRUE);
299 keypad(screen.main_window.w, TRUE);
301 /* create progress window */
302 progress_bar_init(&screen.progress_bar, screen.cols,
303 screen.rows - 2, 0);
305 /* create status window */
306 status_bar_init(&screen.status_bar, screen.cols, screen.rows - 1, 0);
308 #ifdef ENABLE_COLORS
309 if (options.enable_colors) {
310 /* set background attributes */
311 wbkgd(stdscr, COLOR_PAIR(COLOR_LIST));
312 wbkgd(screen.main_window.w, COLOR_PAIR(COLOR_LIST));
313 wbkgd(screen.title_bar.window.w, COLOR_PAIR(COLOR_TITLE));
314 wbkgd(screen.progress_bar.window.w,
315 COLOR_PAIR(COLOR_PROGRESSBAR));
316 wbkgd(screen.status_bar.window.w, COLOR_PAIR(COLOR_STATUS));
317 colors_use(screen.progress_bar.window.w, COLOR_PROGRESSBAR);
318 }
319 #endif
321 /* initialize screens */
322 screen_list_init(screen.main_window.w,
323 screen.main_window.cols, screen.main_window.rows);
325 if (mode_fn->open != NULL)
326 mode_fn->open(c);
327 }
329 static void
330 screen_refresh(struct mpdclient *c, bool main_dirty)
331 {
332 /* update title/header window */
333 paint_top_window(c);
335 /* paint the bottom window */
337 update_progress_window(c, true);
338 status_bar_paint(&screen.status_bar, c->status, c->song);
340 /* paint the main window */
342 if (main_dirty) {
343 wclear(screen.main_window.w);
344 if (mode_fn->paint != NULL)
345 mode_fn->paint();
346 }
348 /* move the cursor to the origin */
350 if (!options.hardware_cursor)
351 wmove(screen.main_window.w, 0, 0);
353 wnoutrefresh(screen.main_window.w);
355 /* tell curses to update */
356 doupdate();
357 }
359 void
360 screen_paint(struct mpdclient *c)
361 {
362 screen_refresh(c, true);
363 }
365 void
366 screen_update(struct mpdclient *c)
367 {
368 #ifndef NCMPC_MINI
369 static bool was_connected;
370 static bool initialized = false;
371 static bool repeat;
372 static bool random_enabled;
373 static bool single;
374 static bool consume;
375 static unsigned crossfade;
377 /* print a message if mpd status has changed */
378 if ((c->events & MPD_IDLE_OPTIONS) && c->status != NULL) {
379 if (!initialized) {
380 repeat = mpd_status_get_repeat(c->status);
381 random_enabled = mpd_status_get_random(c->status);
382 single = mpd_status_get_single(c->status);
383 consume = mpd_status_get_consume(c->status);
384 crossfade = mpd_status_get_crossfade(c->status);
385 initialized = true;
386 }
388 if (repeat != mpd_status_get_repeat(c->status))
389 screen_status_printf(mpd_status_get_repeat(c->status) ?
390 _("Repeat mode is on") :
391 _("Repeat mode is off"));
393 if (random_enabled != mpd_status_get_random(c->status))
394 screen_status_printf(mpd_status_get_random(c->status) ?
395 _("Random mode is on") :
396 _("Random mode is off"));
398 if (single != mpd_status_get_single(c->status))
399 screen_status_printf(mpd_status_get_single(c->status) ?
400 /* "single" mode means
401 that MPD will
402 automatically stop
403 after playing one
404 single song */
405 _("Single mode is on") :
406 _("Single mode is off"));
408 if (consume != mpd_status_get_consume(c->status))
409 screen_status_printf(mpd_status_get_consume(c->status) ?
410 /* "consume" mode means
411 that MPD removes each
412 song which has
413 finished playing */
414 _("Consume mode is on") :
415 _("Consume mode is off"));
417 if (crossfade != mpd_status_get_crossfade(c->status))
418 screen_status_printf(_("Crossfade %d seconds"),
419 mpd_status_get_crossfade(c->status));
421 repeat = mpd_status_get_repeat(c->status);
422 random_enabled = mpd_status_get_random(c->status);
423 single = mpd_status_get_single(c->status);
424 consume = mpd_status_get_consume(c->status);
425 crossfade = mpd_status_get_crossfade(c->status);
426 }
428 if ((c->events & MPD_IDLE_DATABASE) != 0 && was_connected &&
429 mpdclient_is_connected(c))
430 screen_status_printf(_("Database updated"));
431 was_connected = mpdclient_is_connected(c);
432 #endif
434 /* update the main window */
435 if (mode_fn->update != NULL)
436 mode_fn->update(c);
438 screen_refresh(c, false);
439 }
441 #ifdef HAVE_GETMOUSE
442 int
443 screen_get_mouse_event(struct mpdclient *c, unsigned long *bstate, int *row)
444 {
445 MEVENT event;
447 /* retrieve the mouse event from curses */
448 #ifdef PDCURSES
449 nc_getmouse(&event);
450 #else
451 getmouse(&event);
452 #endif
453 /* calculate the selected row in the list window */
454 *row = event.y - screen.title_bar.window.rows;
455 /* copy button state bits */
456 *bstate = event.bstate;
457 /* if button 2 was pressed switch screen */
458 if (event.bstate & BUTTON2_CLICKED) {
459 screen_cmd(c, CMD_SCREEN_NEXT);
460 return 1;
461 }
463 return 0;
464 }
465 #endif
467 void
468 screen_cmd(struct mpdclient *c, command_t cmd)
469 {
470 #ifndef NCMPC_MINI
471 if (screen.welcome_source_id != 0) {
472 g_source_remove(screen.welcome_source_id);
473 screen.welcome_source_id = 0;
474 }
475 #endif
477 if (mode_fn->cmd != NULL && mode_fn->cmd(c, cmd))
478 return;
480 if (handle_player_command(c, cmd))
481 return;
483 switch(cmd) {
484 case CMD_TOGGLE_FIND_WRAP:
485 options.find_wrap = !options.find_wrap;
486 screen_status_printf(options.find_wrap ?
487 _("Find mode: Wrapped") :
488 _("Find mode: Normal"));
489 break;
490 case CMD_TOGGLE_AUTOCENTER:
491 options.auto_center = !options.auto_center;
492 screen_status_printf(options.auto_center ?
493 _("Auto center mode: On") :
494 _("Auto center mode: Off"));
495 break;
496 case CMD_SCREEN_UPDATE:
497 screen_paint(c);
498 break;
499 case CMD_SCREEN_PREVIOUS:
500 screen_next_mode(c, -1);
501 break;
502 case CMD_SCREEN_NEXT:
503 screen_next_mode(c, 1);
504 break;
505 case CMD_SCREEN_PLAY:
506 screen_switch(&screen_queue, c);
507 break;
508 case CMD_SCREEN_FILE:
509 screen_switch(&screen_browse, c);
510 break;
511 #ifdef ENABLE_HELP_SCREEN
512 case CMD_SCREEN_HELP:
513 screen_switch(&screen_help, c);
514 break;
515 #endif
516 #ifdef ENABLE_SEARCH_SCREEN
517 case CMD_SCREEN_SEARCH:
518 screen_switch(&screen_search, c);
519 break;
520 #endif
521 #ifdef ENABLE_ARTIST_SCREEN
522 case CMD_SCREEN_ARTIST:
523 screen_switch(&screen_artist, c);
524 break;
525 #endif
526 #ifdef ENABLE_SONG_SCREEN
527 case CMD_SCREEN_SONG:
528 screen_switch(&screen_song, c);
529 break;
530 #endif
531 #ifdef ENABLE_KEYDEF_SCREEN
532 case CMD_SCREEN_KEYDEF:
533 screen_switch(&screen_keydef, c);
534 break;
535 #endif
536 #ifdef ENABLE_LYRICS_SCREEN
537 case CMD_SCREEN_LYRICS:
538 screen_switch(&screen_lyrics, c);
539 break;
540 #endif
541 #ifdef ENABLE_OUTPUTS_SCREEN
542 case CMD_SCREEN_OUTPUTS:
543 screen_switch(&screen_outputs, c);
544 break;
545 #endif
546 #ifdef ENABLE_CHAT_SCREEN
547 case CMD_SCREEN_CHAT:
548 screen_switch(&screen_chat, c);
549 break;
550 #endif
551 case CMD_SCREEN_SWAP:
552 screen_swap(c, NULL);
553 break;
555 default:
556 break;
557 }
558 }