mdw@git.distorted.org.uk Git - disorder/blob - disobedience/disobedience.c

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2006, 2007, 2008 Richard Kettlewell
   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 /** @file disobedience/disobedience.c
  21  * @brief Main Disobedience program
  22  */
  23
  24 #include "disobedience.h"
  25 #include "mixer.h"
  26 #include "version.h"
  27
  28 #include <getopt.h>
  29 #include <locale.h>
  30 #include <pcre.h>
  31
  32 /* Apologies for the numerous de-consting casts, but GLib et al do not seem to
  33  * have heard of const. */
  34
  35 /* Variables --------------------------------------------------------------- */
  36
  37 /** @brief Event loop */
  38 GMainLoop *mainloop;
  39
  40 /** @brief Top-level window */
  41 GtkWidget *toplevel;
  42
  43 /** @brief Label for progress indicator */
  44 GtkWidget *report_label;
  45
  46 /** @brief Main tab group */
  47 GtkWidget *tabs;
  48
  49 /** @brief Main client */
  50 disorder_eclient *client;
  51
  52 /** @brief Log client */
  53 disorder_eclient *logclient;
  54
  55 /** @brief Last reported state
  56  *
  57  * This is updated by log_state().
  58  */
  59 unsigned long last_state;
  60
  61 /** @brief True if some track is playing
  62  *
  63  * This ought to be removed in favour of last_state & DISORDER_PLAYING
  64  */
  65 int playing;
  66
  67 /** @brief Left channel volume */
  68 int volume_l;
  69
  70 /** @brief Right channel volume */
  71 int volume_r;
  72
  73 double goesupto = 10;                   /* volume upper bound */
  74
  75 /** @brief True if a NOP is in flight */
  76 static int nop_in_flight;
  77
  78 /** @brief True if an rtp-address command is in flight */
  79 static int rtp_address_in_flight;
  80
  81 /** @brief True if a rights lookup is in flight */
  82 static int rights_lookup_in_flight;
  83
  84 /** @brief Current rights bitmap */
  85 rights_type last_rights;
  86
  87 /** @brief Global tooltip group */
  88 GtkTooltips *tips;
  89
  90 /** @brief True if RTP play is available
  91  *
  92  * This is a bit of a bodge...
  93  */
  94 int rtp_supported;
  95
  96 /** @brief True if RTP play is enabled */
  97 int rtp_is_running;
  98
  99 static void check_rtp_address(void);
 100
 101 /* Window creation --------------------------------------------------------- */
 102
 103 /* Note that all the client operations kicked off from here will only complete
 104  * after we've entered the event loop. */
 105
 106 /** @brief Called when main window is deleted
 107  *
 108  * Terminates the program.
 109  */
 110 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 111                              GdkEvent attribute((unused)) *event,
 112                              gpointer attribute((unused)) data) {
 113   D(("delete_event"));
 114   exit(0);                              /* die immediately */
 115 }
 116
 117 /** @brief Called when the current tab is switched
 118  *
 119  * Updates the menu settings to correspond to the new page.
 120  */
 121 static void tab_switched(GtkNotebook *notebook,
 122                          GtkNotebookPage attribute((unused)) *page,
 123                          guint page_num,
 124                          gpointer attribute((unused)) user_data) {
 125   menu_update(page_num);
 126   GtkWidget *const tab = gtk_notebook_get_nth_page(notebook, page_num);
 127   const struct tabtype *const t = g_object_get_data(G_OBJECT(tab), "type");
 128   if(t->selected)
 129     t->selected();
 130 }
 131
 132 /** @brief Create the report box */
 133 static GtkWidget *report_box(void) {
 134   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 135
 136   report_label = gtk_label_new("");
 137   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 138   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 139   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 140   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 141   return vbox;
 142 }
 143
 144 /** @brief Create and populate the main tab group */
 145 static GtkWidget *notebook(void) {
 146   tabs = gtk_notebook_new();
 147   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 148    * produces not too dreadful appearance */
 149   gtk_widget_set_style(tabs, tool_style);
 150   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 151   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue_widget(),
 152                            gtk_label_new("Queue"));
 153   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 154                            gtk_label_new("Recent"));
 155   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 156                            gtk_label_new("Choose"));
 157   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 158                            gtk_label_new("Added"));
 159   return tabs;
 160 }
 161
 162 /** @brief Create and populate the main window */
 163 static void make_toplevel_window(void) {
 164   GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
 165   GtkWidget *const rb = report_box();
 166
 167   D(("top_window"));
 168   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 169   /* default size is too small */
 170   gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
 171   /* terminate on close */
 172   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 173                    G_CALLBACK(delete_event), NULL);
 174   /* lay out the window */
 175   gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
 176   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 177   /* lay out the vbox */
 178   gtk_box_pack_start(GTK_BOX(vbox),
 179                      menubar(toplevel),
 180                      FALSE,             /* expand */
 181                      FALSE,             /* fill */
 182                      0);
 183   gtk_box_pack_start(GTK_BOX(vbox),
 184                      control_widget(),
 185                      FALSE,             /* expand */
 186                      FALSE,             /* fill */
 187                      0);
 188   gtk_container_add(GTK_CONTAINER(vbox), notebook());
 189   gtk_box_pack_end(GTK_BOX(vbox),
 190                    rb,
 191                    FALSE,             /* expand */
 192                    FALSE,             /* fill */
 193                    0);
 194   gtk_widget_set_style(toplevel, tool_style);
 195 }
 196
 197 #if MDEBUG
 198 static int widget_count, container_count;
 199
 200 static void count_callback(GtkWidget *w,
 201                            gpointer attribute((unused)) data) {
 202   ++widget_count;
 203   if(GTK_IS_CONTAINER(w)) {
 204     ++container_count;
 205     gtk_container_foreach(GTK_CONTAINER(w), count_callback, 0);
 206   }
 207 }
 208
 209 static void count_widgets(void) {
 210   widget_count = 0;
 211   container_count = 1;
 212   if(toplevel)
 213     gtk_container_foreach(GTK_CONTAINER(toplevel), count_callback, 0);
 214   fprintf(stderr, "widget count: %8d  container count: %8d\n",
 215           widget_count, container_count);
 216 }
 217 #endif
 218
 219 #if MTRACK
 220 const char *mtag = "init";
 221 static hash *mtrack_hash;
 222
 223 static int *mthfind(const char *tag) {
 224   static const int zero = 0;
 225   int *cp = hash_find(mtrack_hash, tag);
 226   if(!cp) {
 227     hash_add(mtrack_hash, tag, &zero, HASH_INSERT);
 228     cp = hash_find(mtrack_hash, tag);
 229   }
 230   return cp;
 231 }
 232
 233 static void *trap_malloc(size_t n) {
 234   void *ptr = malloc(n + sizeof(char *));
 235
 236   *(const char **)ptr = mtag;
 237   ++*mthfind(mtag);
 238   return (char *)ptr + sizeof(char *);
 239 }
 240
 241 static void trap_free(void *ptr) {
 242   const char *tag;
 243   if(!ptr)
 244     return;
 245   ptr = (char *)ptr - sizeof(char *);
 246   tag = *(const char **)ptr;
 247   --*mthfind(tag);
 248   free(ptr);
 249 }
 250
 251 static void *trap_realloc(void *ptr, size_t n) {
 252   if(!ptr)
 253     return trap_malloc(n);
 254   if(!n) {
 255     trap_free(ptr);
 256     return 0;
 257   }
 258   ptr = (char *)ptr - sizeof(char *);
 259   ptr = realloc(ptr, n + sizeof(char *));
 260   *(const char **)ptr = mtag;
 261   return (char *)ptr + sizeof(char *);
 262 }
 263
 264 static int report_tags_callback(const char *key, void *value,
 265                                 void attribute((unused)) *u) {
 266   fprintf(stderr, "%16s: %d\n", key, *(int *)value);
 267   return 0;
 268 }
 269
 270 static void report_tags(void) {
 271   hash_foreach(mtrack_hash, report_tags_callback, 0);
 272   fprintf(stderr, "\n");
 273 }
 274
 275 static const GMemVTable glib_memvtable = {
 276   trap_malloc,
 277   trap_realloc,
 278   trap_free,
 279   0,
 280   0,
 281   0
 282 };
 283 #endif
 284
 285 static void userinfo_rights_completed(void attribute((unused)) *v,
 286                                       const char *error,
 287                                       const char *value) {
 288   rights_type r;
 289
 290   if(error) {
 291     popup_protocol_error(0, error);
 292     r = 0;
 293   } else {
 294     if(parse_rights(value, &r, 0))
 295       r = 0;
 296   }
 297   /* If rights have changed, signal everything that cares */
 298   if(r != last_rights) {
 299     last_rights = r;
 300     ++suppress_actions;
 301     event_raise("rights-changed", 0);
 302     --suppress_actions;
 303   }
 304   rights_lookup_in_flight = 0;
 305 }
 306
 307 /** @brief Called occasionally */
 308 static gboolean periodic_slow(gpointer attribute((unused)) data) {
 309   D(("periodic_slow"));
 310   /* Expire cached data */
 311   cache_expire();
 312   /* Update everything to be sure that the connection to the server hasn't
 313    * mysteriously gone stale on us. */
 314   all_update();
 315 #if MDEBUG
 316   count_widgets();
 317   fprintf(stderr, "cache size: %zu\n", cache_count());
 318 #endif
 319 #if MTRACK
 320   report_tags();
 321 #endif
 322   /* Periodically check what our rights are */
 323   if(!rights_lookup_in_flight) {
 324     rights_lookup_in_flight = 1;
 325     disorder_eclient_userinfo(client,
 326                               userinfo_rights_completed,
 327                               config->username, "rights",
 328                               0);
 329   }
 330   /* Recheck RTP status too */
 331   check_rtp_address();
 332   return TRUE;                          /* don't remove me */
 333 }
 334
 335 /** @brief Called frequently */
 336 static gboolean periodic_fast(gpointer attribute((unused)) data) {
 337 #if 0                                   /* debugging hack */
 338   static struct timeval last;
 339   struct timeval now;
 340   double delta;
 341
 342   xgettimeofday(&now, 0);
 343   if(last.tv_sec) {
 344     delta = (now.tv_sec + now.tv_sec / 1.0E6)
 345       - (last.tv_sec + last.tv_sec / 1.0E6);
 346     if(delta >= 1.0625)
 347       fprintf(stderr, "%f: %fs between 1s heartbeats\n",
 348               now.tv_sec + now.tv_sec / 1.0E6,
 349               delta);
 350   }
 351   last = now;
 352 #endif
 353   if(rtp_supported && mixer_supported(DEFAULT_BACKEND)) {
 354     int nl, nr;
 355     if(!mixer_control(DEFAULT_BACKEND, &nl, &nr, 0)
 356        && (nl != volume_l || nr != volume_r)) {
 357       volume_l = nl;
 358       volume_r = nr;
 359       event_raise("volume-changed", 0);
 360     }
 361   }
 362   return TRUE;
 363 }
 364
 365 /** @brief Called when a NOP completes */
 366 static void nop_completed(void attribute((unused)) *v,
 367                           const char attribute((unused)) *error) {
 368   /* TODO report the error somewhere */
 369   nop_in_flight = 0;
 370 }
 371
 372 /** @brief Called from time to time to arrange for a NOP to be sent
 373  *
 374  * At most one NOP remains in flight at any moment.  If the client is not
 375  * currently connected then no NOP is sent.
 376  */
 377 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 378   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 379     nop_in_flight = 1;
 380     disorder_eclient_nop(client, nop_completed, 0);
 381   }
 382   if(rtp_supported) {
 383     const int rtp_was_running = rtp_is_running;
 384     rtp_is_running = rtp_running();
 385     if(rtp_was_running != rtp_is_running)
 386       event_raise("rtp-changed", 0);
 387   }
 388   return TRUE;                          /* keep call me please */
 389 }
 390
 391 /** @brief Called when a rtp-address command succeeds */
 392 static void got_rtp_address(void attribute((unused)) *v,
 393                             const char *error,
 394                             int attribute((unused)) nvec,
 395                             char attribute((unused)) **vec) {
 396   const int rtp_was_supported = rtp_supported;
 397   const int rtp_was_running = rtp_is_running;
 398
 399   ++suppress_actions;
 400   rtp_address_in_flight = 0;
 401   if(error) {
 402     /* An error just means that we're not using network play */
 403     rtp_supported = 0;
 404     rtp_is_running = 0;
 405   } else {
 406     rtp_supported = 1;
 407     rtp_is_running = rtp_running();
 408   }
 409   if(rtp_supported != rtp_was_supported
 410      || rtp_is_running != rtp_was_running)
 411     event_raise("rtp-changed", 0);
 412   --suppress_actions;
 413 }
 414
 415 /** @brief Called to check whether RTP play is available */
 416 static void check_rtp_address(void) {
 417   if(!rtp_address_in_flight)
 418     disorder_eclient_rtp_address(client, got_rtp_address, NULL);
 419 }
 420
 421 /* main -------------------------------------------------------------------- */
 422
 423 static const struct option options[] = {
 424   { "help", no_argument, 0, 'h' },
 425   { "version", no_argument, 0, 'V' },
 426   { "config", required_argument, 0, 'c' },
 427   { "tufnel", no_argument, 0, 't' },
 428   { "debug", no_argument, 0, 'd' },
 429   { 0, 0, 0, 0 }
 430 };
 431
 432 /* display usage message and terminate */
 433 static void help(void) {
 434   xprintf("Disobedience - GUI client for DisOrder\n"
 435           "\n"
 436           "Usage:\n"
 437           "  disobedience [OPTIONS]\n"
 438           "Options:\n"
 439           "  --help, -h              Display usage message\n"
 440           "  --version, -V           Display version number\n"
 441           "  --config PATH, -c PATH  Set configuration file\n"
 442           "  --debug, -d             Turn on debugging\n"
 443           "\n"
 444           "Also GTK+ options will work.\n");
 445   xfclose(stdout);
 446   exit(0);
 447 }
 448
 449 void logged_in(void) {
 450   /* reset the clients */
 451   disorder_eclient_close(client);
 452   disorder_eclient_close(logclient);
 453   rtp_supported = 0;
 454   event_raise("logged-in", 0);
 455   /* Force the periodic checks */
 456   periodic_slow(0);
 457   periodic_fast(0);
 458 }
 459
 460 int main(int argc, char **argv) {
 461   int n;
 462   gboolean gtkok;
 463
 464   mem_init();
 465   /* garbage-collect PCRE's memory */
 466   pcre_malloc = xmalloc;
 467   pcre_free = xfree;
 468 #if MTRACK
 469   mtrack_hash = hash_new(sizeof (int));
 470   g_mem_set_vtable((GMemVTable *)&glib_memvtable);
 471 #endif
 472   if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
 473   gtkok = gtk_init_check(&argc, &argv);
 474   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 475     switch(n) {
 476     case 'h': help();
 477     case 'V': version("disobedience");
 478     case 'c': configfile = optarg; break;
 479     case 'd': debugging = 1; break;
 480     case 't': goesupto = 11; break;
 481     default: fatal(0, "invalid option");
 482     }
 483   }
 484   if(!gtkok)
 485     fatal(0, "failed to initialize GTK+");
 486   signal(SIGPIPE, SIG_IGN);
 487   init_styles();
 488   load_settings();
 489   /* create the event loop */
 490   D(("create main loop"));
 491   mainloop = g_main_loop_new(0, 0);
 492   if(config_read(0)) fatal(0, "cannot read configuration");
 493   /* create the clients */
 494   if(!(client = gtkclient())
 495      || !(logclient = gtkclient()))
 496     return 1;                           /* already reported an error */
 497   /* periodic operations (e.g. expiring the cache, checking local volume) */
 498   g_timeout_add(10000/*milliseconds*/, periodic_slow, 0);
 499   g_timeout_add(1000/*milliseconds*/, periodic_fast, 0);
 500   /* global tooltips */
 501   tips = gtk_tooltips_new();
 502   make_toplevel_window();
 503   /* reset styles now everything has its name */
 504   gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
 505   gtk_widget_show_all(toplevel);
 506   /* issue a NOP every so often */
 507   g_timeout_add_full(G_PRIORITY_LOW,
 508                      2000/*interval, ms*/,
 509                      maybe_send_nop,
 510                      0/*data*/,
 511                      0/*notify*/);
 512   /* Start monitoring the log */
 513   disorder_eclient_log(logclient, &log_callbacks, 0);
 514   /* Initiate all the checks */
 515   periodic_slow(0);
 516   periodic_fast(0);
 517   suppress_actions = 0;
 518   /* If no password is set yet pop up a login box */
 519   if(!config->password)
 520     login_box();
 521   D(("enter main loop"));
 522   MTAG("misc");
 523   g_main_loop_run(mainloop);
 524   return 0;
 525 }
 526
 527 /*
 528 Local Variables:
 529 c-basic-offset:2
 530 comment-column:40
 531 fill-column:79
 532 indent-tabs-mode:nil
 533 End:
 534 */