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[disorder] / disobedience / disobedience.c
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460b9539 1/*
2 * This file is part of DisOrder.
eb525fcd 3 * Copyright (C) 2006, 2007 Richard Kettlewell
460b9539 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, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#include "disobedience.h"
22
23#include <getopt.h>
24#include <locale.h>
fe8f8518 25#include <pcre.h>
460b9539 26
27/* Apologies for the numerous de-consting casts, but GLib et al do not seem to
28 * have heard of const. */
29
30#include "style.h" /* generated style */
31
32/* Functions --------------------------------------------------------------- */
33
34static void log_connected(void *v);
35static void log_completed(void *v, const char *track);
36static void log_failed(void *v, const char *track, const char *status);
37static void log_moved(void *v, const char *user);
38static void log_playing(void *v, const char *track, const char *user);
39static void log_queue(void *v, struct queue_entry *q);
40static void log_recent_added(void *v, struct queue_entry *q);
41static void log_recent_removed(void *v, const char *id);
42static void log_removed(void *v, const char *id, const char *user);
43static void log_scratched(void *v, const char *track, const char *user);
44static void log_state(void *v, unsigned long state);
45static void log_volume(void *v, int l, int r);
46
47/* Variables --------------------------------------------------------------- */
48
49GMainLoop *mainloop; /* event loop */
50GtkWidget *toplevel; /* top level window */
51GtkWidget *report_label; /* label for progress indicator */
52GtkWidget *tabs; /* main tabs */
53
54disorder_eclient *client; /* main client */
55
56unsigned long last_state; /* last reported state */
57int playing; /* true if playing some track */
58int volume_l, volume_r; /* volume */
59double goesupto = 10; /* volume upper bound */
60int choosealpha; /* break up choose by letter */
61
7858930d 62/** @brief True if a NOP is in flight */
63static int nop_in_flight;
64
460b9539 65static const disorder_eclient_log_callbacks gdisorder_log_callbacks = {
66 log_connected,
67 log_completed,
68 log_failed,
69 log_moved,
70 log_playing,
71 log_queue,
72 log_recent_added,
73 log_recent_removed,
74 log_removed,
75 log_scratched,
76 log_state,
77 log_volume
78};
79
80/* Window creation --------------------------------------------------------- */
81
82/* Note that all the client operations kicked off from here will only complete
83 * after we've entered the event loop. */
84
85static gboolean delete_event(GtkWidget attribute((unused)) *widget,
86 GdkEvent attribute((unused)) *event,
87 gpointer attribute((unused)) data) {
88 D(("delete_event"));
89 exit(0); /* die immediately */
90}
91
92/* Called when the current tab is switched. */
93static void tab_switched(GtkNotebook attribute((unused)) *notebook,
94 GtkNotebookPage attribute((unused)) *page,
95 guint page_num,
96 gpointer attribute((unused)) user_data) {
97 menu_update(page_num);
98}
99
100static GtkWidget *report_box(void) {
101 GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
102
103 report_label = gtk_label_new("");
104 gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
105 gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
106 gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
107 gtk_container_add(GTK_CONTAINER(vbox), report_label);
108 return vbox;
109}
110
111static GtkWidget *notebook(void) {
112 tabs = gtk_notebook_new();
113 g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
114 gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue_widget(),
115 gtk_label_new("Queue"));
116 gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
117 gtk_label_new("Recent"));
118 gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
119 gtk_label_new("Choose"));
120 return tabs;
121}
122
123static void make_toplevel_window(void) {
124 GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
125 GtkWidget *const rb = report_box();
126
127 D(("top_window"));
128 toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
129 /* default size is too small */
130 gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
131 /* terminate on close */
132 g_signal_connect(G_OBJECT(toplevel), "delete_event",
133 G_CALLBACK(delete_event), NULL);
134 /* lay out the window */
135 gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
136 gtk_container_add(GTK_CONTAINER(toplevel), vbox);
137 /* lay out the vbox */
138 gtk_box_pack_start(GTK_BOX(vbox),
139 menubar(toplevel),
140 FALSE, /* expand */
141 FALSE, /* fill */
142 0);
143 gtk_box_pack_start(GTK_BOX(vbox),
144 control_widget(),
145 FALSE, /* expand */
146 FALSE, /* fill */
147 0);
148 gtk_container_add(GTK_CONTAINER(vbox), notebook());
149 gtk_box_pack_end(GTK_BOX(vbox),
150 rb,
151 FALSE, /* expand */
152 FALSE, /* fill */
153 0);
154 gtk_widget_set_name(toplevel, "disobedience");
155}
156
157/* State monitoring -------------------------------------------------------- */
158
159static void all_update(void) {
160 playing_update();
161 queue_update();
162 recent_update();
163 control_update();
164}
165
166static void log_connected(void attribute((unused)) *v) {
167 struct callbackdata *cbd;
168
169 /* Don't know what we might have missed while disconnected so update
170 * everything. We get this at startup too and this is how we do the initial
171 * state fetch. */
172 all_update();
173 /* Re-get the volume */
174 cbd = xmalloc(sizeof *cbd);
175 cbd->onerror = 0;
176 disorder_eclient_volume(client, log_volume, -1, -1, cbd);
177}
178
179static void log_completed(void attribute((unused)) *v,
180 const char attribute((unused)) *track) {
181 playing = 0;
182 playing_update();
183 control_update();
184}
185
186static void log_failed(void attribute((unused)) *v,
187 const char attribute((unused)) *track,
188 const char attribute((unused)) *status) {
189 playing = 0;
190 playing_update();
191 control_update();
192}
193
194static void log_moved(void attribute((unused)) *v,
195 const char attribute((unused)) *user) {
196 queue_update();
197}
198
199static void log_playing(void attribute((unused)) *v,
200 const char attribute((unused)) *track,
201 const char attribute((unused)) *user) {
202 playing = 1;
203 playing_update();
204 control_update();
205 /* we get a log_removed() anyway so we don't need to update_queue() from
206 * here */
207}
208
209static void log_queue(void attribute((unused)) *v,
210 struct queue_entry attribute((unused)) *q) {
211 queue_update();
212}
213
214static void log_recent_added(void attribute((unused)) *v,
215 struct queue_entry attribute((unused)) *q) {
216 recent_update();
217}
218
219static void log_recent_removed(void attribute((unused)) *v,
220 const char attribute((unused)) *id) {
221 /* nothing - log_recent_added() will trigger the relevant update */
222}
223
224static void log_removed(void attribute((unused)) *v,
225 const char attribute((unused)) *id,
226 const char attribute((unused)) *user) {
227 queue_update();
228}
229
230static void log_scratched(void attribute((unused)) *v,
231 const char attribute((unused)) *track,
232 const char attribute((unused)) *user) {
233 playing = 0;
234 playing_update();
235 control_update();
236}
237
238static void log_state(void attribute((unused)) *v,
239 unsigned long state) {
240 last_state = state;
241 control_update();
242 /* If the track is paused or resume then the currently playing track is
243 * refetched so that we can continue to correctly calculate the played so-far
244 * field */
245 playing_update();
246}
247
248static void log_volume(void attribute((unused)) *v,
249 int l, int r) {
250 if(volume_l != l || volume_r != r) {
251 volume_l = l;
252 volume_r = r;
253 control_update();
254 }
255}
256
0b7c8909 257#if MDEBUG
258static int widget_count, container_count;
259
260static void count_callback(GtkWidget *w,
261 gpointer attribute((unused)) data) {
262 ++widget_count;
263 if(GTK_IS_CONTAINER(w)) {
264 ++container_count;
265 gtk_container_foreach(GTK_CONTAINER(w), count_callback, 0);
266 }
267}
268
269static void count_widgets(void) {
270 widget_count = 0;
271 container_count = 1;
272 if(toplevel)
273 gtk_container_foreach(GTK_CONTAINER(toplevel), count_callback, 0);
274 fprintf(stderr, "widget count: %8d container count: %8d\n",
275 widget_count, container_count);
276}
277#endif
278
e1d4a32b 279#if MTRACK
280const char *mtag = "init";
281static hash *mtrack_hash;
282
283static int *mthfind(const char *tag) {
284 static const int zero = 0;
285 int *cp = hash_find(mtrack_hash, tag);
286 if(!cp) {
287 hash_add(mtrack_hash, tag, &zero, HASH_INSERT);
288 cp = hash_find(mtrack_hash, tag);
289 }
290 return cp;
291}
292
293static void *trap_malloc(size_t n) {
294 void *ptr = malloc(n + sizeof(char *));
295
296 *(const char **)ptr = mtag;
297 ++*mthfind(mtag);
298 return (char *)ptr + sizeof(char *);
299}
300
301static void trap_free(void *ptr) {
302 const char *tag;
303 if(!ptr)
304 return;
305 ptr = (char *)ptr - sizeof(char *);
306 tag = *(const char **)ptr;
307 --*mthfind(tag);
308 free(ptr);
309}
310
311static void *trap_realloc(void *ptr, size_t n) {
312 if(!ptr)
313 return trap_malloc(n);
314 if(!n) {
315 trap_free(ptr);
316 return 0;
317 }
318 ptr = (char *)ptr - sizeof(char *);
319 ptr = realloc(ptr, n + sizeof(char *));
320 *(const char **)ptr = mtag;
321 return (char *)ptr + sizeof(char *);
322}
323
324static int report_tags_callback(const char *key, void *value,
325 void attribute((unused)) *u) {
326 fprintf(stderr, "%16s: %d\n", key, *(int *)value);
327 return 0;
328}
329
330static void report_tags(void) {
331 hash_foreach(mtrack_hash, report_tags_callback, 0);
332 fprintf(stderr, "\n");
333}
334
335static const GMemVTable glib_memvtable = {
336 trap_malloc,
337 trap_realloc,
338 trap_free,
339 0,
340 0,
341 0
342};
343#endif
344
460b9539 345/* Called once every 10 minutes */
346static gboolean periodic(gpointer attribute((unused)) data) {
347 D(("periodic"));
348 /* Expire cached data */
349 cache_expire();
350 /* Update everything to be sure that the connection to the server hasn't
351 * mysteriously gone stale on us. */
352 all_update();
0b7c8909 353#if MDEBUG
354 count_widgets();
355 fprintf(stderr, "cache size: %zu\n", cache_count());
356#endif
e1d4a32b 357#if MTRACK
358 report_tags();
359#endif
460b9539 360 return TRUE; /* don't remove me */
361}
362
363static gboolean heartbeat(gpointer attribute((unused)) data) {
364 static struct timeval last;
365 struct timeval now;
366 double delta;
367
368 xgettimeofday(&now, 0);
369 if(last.tv_sec) {
370 delta = (now.tv_sec + now.tv_sec / 1.0E6)
371 - (last.tv_sec + last.tv_sec / 1.0E6);
372 if(delta >= 1.0625)
373 fprintf(stderr, "%f: %fs between 1s heartbeats\n",
374 now.tv_sec + now.tv_sec / 1.0E6,
375 delta);
376 }
377 last = now;
378 return TRUE;
379}
380
7858930d 381/** @brief Called when a NOP completes */
382static void nop_completed(void attribute((unused)) *v) {
383 nop_in_flight = 0;
384}
385
386/** @brief Called from time to time to arrange for a NOP to be sent
387 *
388 * At most one NOP remains in flight at any moment. If the client is not
389 * currently connected then no NOP is sent.
390 */
391static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
392 if(!nop_in_flight && disorder_eclient_connected(client)) {
393 nop_in_flight = 1;
394 disorder_eclient_nop(client, nop_completed, 0);
395 }
396 return TRUE; /* keep call me please */
397}
398
460b9539 399/* main -------------------------------------------------------------------- */
400
401static const struct option options[] = {
402 { "help", no_argument, 0, 'h' },
403 { "version", no_argument, 0, 'V' },
404 { "config", required_argument, 0, 'c' },
405 { "tufnel", no_argument, 0, 't' },
406 { "choosealpha", no_argument, 0, 'C' },
407 { "debug", no_argument, 0, 'd' },
408 { 0, 0, 0, 0 }
409};
410
411/* display usage message and terminate */
412static void help(void) {
413 xprintf("Disobedience - GUI client for DisOrder\n"
414 "\n"
415 "Usage:\n"
416 " disobedience [OPTIONS]\n"
417 "Options:\n"
418 " --help, -h Display usage message\n"
419 " --version, -V Display version number\n"
420 " --config PATH, -c PATH Set configuration file\n"
421 " --debug, -d Turn on debugging\n"
422 "\n"
423 "Also GTK+ options will work.\n");
424 xfclose(stdout);
425 exit(0);
426}
427
428/* display version number and terminate */
429static void version(void) {
430 xprintf("disorder version %s\n", disorder_version_string);
431 xfclose(stdout);
432 exit(0);
433}
434
435int main(int argc, char **argv) {
436 int n;
437 disorder_eclient *logclient;
438
320598d4 439 mem_init();
fe8f8518
RK
440 /* garbage-collect PCRE's memory */
441 pcre_malloc = xmalloc;
442 pcre_free = xfree;
e1d4a32b 443#if MTRACK
444 mtrack_hash = hash_new(sizeof (int));
445 g_mem_set_vtable((GMemVTable *)&glib_memvtable);
446#endif
460b9539 447 if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
460b9539 448 gtk_init(&argc, &argv);
449 gtk_rc_parse_string(style);
450 while((n = getopt_long(argc, argv, "hVc:dtH", options, 0)) >= 0) {
451 switch(n) {
452 case 'h': help();
453 case 'V': version();
454 case 'c': configfile = optarg; break;
455 case 'd': debugging = 1; break;
456 case 't': goesupto = 11; break;
457 case 'C': choosealpha = 1; break; /* not well tested any more */
458 default: fatal(0, "invalid option");
459 }
460 }
346ba8d5 461 signal(SIGPIPE, SIG_IGN);
460b9539 462 /* create the event loop */
463 D(("create main loop"));
464 mainloop = g_main_loop_new(0, 0);
465 if(config_read()) fatal(0, "cannot read configuration");
466 /* create the clients */
1c0d78bd
RK
467 if(!(client = gtkclient())
468 || !(logclient = gtkclient()))
469 return 1; /* already reported an error */
460b9539 470 disorder_eclient_log(logclient, &gdisorder_log_callbacks, 0);
471 /* periodic operations (e.g. expiring the cache) */
e1d4a32b 472#if MDEBUG || MTRACK
0b7c8909 473 g_timeout_add(5000/*milliseconds*/, periodic, 0);
474#else
460b9539 475 g_timeout_add(600000/*milliseconds*/, periodic, 0);
0b7c8909 476#endif
460b9539 477 /* The point of this is to try and get a handle on mysterious
478 * unresponsiveness. It's not very useful in production use. */
479 if(0)
480 g_timeout_add(1000/*milliseconds*/, heartbeat, 0);
481 make_toplevel_window();
482 /* reset styles now everything has its name */
483 gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
484 gtk_widget_show_all(toplevel);
ad58ebcc 485 /* set initial control button visibility/usability */
486 control_update();
7858930d 487 /* issue a NOP every so often */
488 g_timeout_add_full(G_PRIORITY_LOW,
489 1000/*interval, ms*/,
490 maybe_send_nop,
491 0/*data*/,
492 0/*notify*/);
460b9539 493 D(("enter main loop"));
e1d4a32b 494 MTAG("misc");
460b9539 495 g_main_loop_run(mainloop);
496 return 0;
497}
498
499/*
500Local Variables:
501c-basic-offset:2
502comment-column:40
503fill-column:79
504indent-tabs-mode:nil
505End:
506*/