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

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2006-2009 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 3 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
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file disobedience/disobedience.c
  19  * @brief Main Disobedience program
  20  */
  21
  22 #include "disobedience.h"
  23 #include "version.h"
  24
  25 #include <getopt.h>
  26 #include <locale.h>
  27 #include <pcre.h>
  28 #include <gcrypt.h>
  29
  30 /* Apologies for the numerous de-consting casts, but GLib et al do not seem to
  31  * have heard of const. */
  32
  33 /* Variables --------------------------------------------------------------- */
  34
  35 /** @brief Event loop */
  36 GMainLoop *mainloop;
  37
  38 /** @brief Top-level window */
  39 GtkWidget *toplevel;
  40
  41 /** @brief Label for progress indicator */
  42 GtkWidget *report_label;
  43
  44 /** @brief Main tab group */
  45 GtkWidget *tabs;
  46
  47 /** @brief Main client */
  48 disorder_eclient *client;
  49
  50 /** @brief Log client */
  51 disorder_eclient *logclient;
  52
  53 /** @brief Last reported state
  54  *
  55  * This is updated by log_state().
  56  */
  57 unsigned long last_state;
  58
  59 /** @brief True if some track is playing
  60  *
  61  * This ought to be removed in favour of last_state & DISORDER_PLAYING
  62  */
  63 int playing;
  64
  65 /** @brief Left channel volume */
  66 int volume_l;
  67
  68 /** @brief Right channel volume */
  69 int volume_r;
  70
  71 /** @brief Audio backend */
  72 const struct uaudio *backend;
  73
  74 double goesupto = 10;                   /* volume upper bound */
  75
  76 /** @brief True if a NOP is in flight */
  77 static int nop_in_flight;
  78
  79 /** @brief True if an rtp-address command is in flight */
  80 static int rtp_address_in_flight;
  81
  82 /** @brief True if a rights lookup is in flight */
  83 static int rights_lookup_in_flight;
  84
  85 /** @brief Current rights bitmap */
  86 rights_type last_rights;
  87
  88 /** @brief Global tooltip group */
  89 GtkTooltips *tips;
  90
  91 /** @brief True if RTP play is available
  92  *
  93  * This is a bit of a bodge...
  94  */
  95 int rtp_supported;
  96
  97 /** @brief True if RTP play is enabled */
  98 int rtp_is_running;
  99
 100 /** @brief Server version */
 101 const char *server_version;
 102
 103 /** @brief Parsed server version */
 104 long server_version_bytes;
 105
 106 static void check_rtp_address(const char *event,
 107                               void *eventdata,
 108                               void *callbackdata);
 109
 110 /* Window creation --------------------------------------------------------- */
 111
 112 /* Note that all the client operations kicked off from here will only complete
 113  * after we've entered the event loop. */
 114
 115 /** @brief Called when main window is deleted
 116  *
 117  * Terminates the program.
 118  */
 119 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 120                              GdkEvent attribute((unused)) *event,
 121                              gpointer attribute((unused)) data) {
 122   D(("delete_event"));
 123   exit(0);                              /* die immediately */
 124 }
 125
 126 /** @brief Called when the current tab is switched
 127  *
 128  * Updates the menu settings to correspond to the new page.
 129  */
 130 static void tab_switched(GtkNotebook *notebook,
 131                          GtkNotebookPage attribute((unused)) *page,
 132                          guint page_num,
 133                          gpointer attribute((unused)) user_data) {
 134   GtkWidget *const tab = gtk_notebook_get_nth_page(notebook, page_num);
 135   const struct tabtype *const t = g_object_get_data(G_OBJECT(tab), "type");
 136   assert(t != 0);
 137   if(t->selected)
 138     t->selected();
 139 }
 140
 141 /** @brief Create the report box */
 142 static GtkWidget *report_box(void) {
 143   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 144
 145   report_label = gtk_label_new("");
 146   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 147   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 148   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 149   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 150   return vbox;
 151 }
 152
 153 /** @brief Create and populate the main tab group */
 154 static GtkWidget *notebook(void) {
 155   tabs = gtk_notebook_new();
 156   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 157    * produces not too dreadful appearance */
 158   gtk_widget_set_style(tabs, tool_style);
 159   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 160   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue_widget(),
 161                            gtk_label_new("Queue"));
 162   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 163                            gtk_label_new("Recent"));
 164   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 165                            gtk_label_new("Choose"));
 166   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 167                            gtk_label_new("Added"));
 168   return tabs;
 169 }
 170
 171 /** @brief Create and populate the main window */
 172 static void make_toplevel_window(void) {
 173   GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
 174   GtkWidget *const rb = report_box();
 175
 176   D(("top_window"));
 177   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 178   /* default size is too small */
 179   gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
 180   /* terminate on close */
 181   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 182                    G_CALLBACK(delete_event), NULL);
 183   /* lay out the window */
 184   gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
 185   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 186   /* lay out the vbox */
 187   gtk_box_pack_start(GTK_BOX(vbox),
 188                      menubar(toplevel),
 189                      FALSE,             /* expand */
 190                      FALSE,             /* fill */
 191                      0);
 192   gtk_box_pack_start(GTK_BOX(vbox),
 193                      control_widget(),
 194                      FALSE,             /* expand */
 195                      FALSE,             /* fill */
 196                      0);
 197   gtk_container_add(GTK_CONTAINER(vbox), notebook());
 198   gtk_box_pack_end(GTK_BOX(vbox),
 199                    rb,
 200                    FALSE,             /* expand */
 201                    FALSE,             /* fill */
 202                    0);
 203   gtk_widget_set_style(toplevel, tool_style);
 204 }
 205
 206 static void userinfo_rights_completed(void attribute((unused)) *v,
 207                                       const char *err,
 208                                       const char *value) {
 209   rights_type r;
 210
 211   if(err) {
 212     popup_protocol_error(0, err);
 213     r = 0;
 214   } else {
 215     if(parse_rights(value, &r, 0))
 216       r = 0;
 217   }
 218   /* If rights have changed, signal everything that cares */
 219   if(r != last_rights) {
 220     last_rights = r;
 221     ++suppress_actions;
 222     event_raise("rights-changed", 0);
 223     --suppress_actions;
 224   }
 225   rights_lookup_in_flight = 0;
 226 }
 227
 228 static void check_rights(void) {
 229   if(!rights_lookup_in_flight) {
 230     rights_lookup_in_flight = 1;
 231     disorder_eclient_userinfo(client,
 232                               userinfo_rights_completed,
 233                               config->username, "rights",
 234                               0);
 235   }
 236 }
 237
 238 /** @brief Called occasionally */
 239 static gboolean periodic_slow(gpointer attribute((unused)) data) {
 240   D(("periodic_slow"));
 241   /* Expire cached data */
 242   cache_expire();
 243   /* Update everything to be sure that the connection to the server hasn't
 244    * mysteriously gone stale on us. */
 245   all_update();
 246   event_raise("periodic-slow", 0);
 247   /* Recheck RTP status too */
 248   check_rtp_address(0, 0, 0);
 249   return TRUE;                          /* don't remove me */
 250 }
 251
 252 /** @brief Called frequently */
 253 static gboolean periodic_fast(gpointer attribute((unused)) data) {
 254 #if 0                                   /* debugging hack */
 255   static struct timeval last;
 256   struct timeval now;
 257   double delta;
 258
 259   xgettimeofday(&now, 0);
 260   if(last.tv_sec) {
 261     delta = (now.tv_sec + now.tv_sec / 1.0E6)
 262       - (last.tv_sec + last.tv_sec / 1.0E6);
 263     if(delta >= 1.0625)
 264       fprintf(stderr, "%f: %fs between 1s heartbeats\n",
 265               now.tv_sec + now.tv_sec / 1.0E6,
 266               delta);
 267   }
 268   last = now;
 269 #endif
 270   if(rtp_supported && backend && backend->get_volume) {
 271     int nl, nr;
 272     backend->get_volume(&nl, &nr);
 273     if(nl != volume_l || nr != volume_r) {
 274       volume_l = nl;
 275       volume_r = nr;
 276       event_raise("volume-changed", 0);
 277     }
 278   }
 279   /* Periodically check what our rights are */
 280   int recheck_rights = 1;
 281   if(server_version_bytes >= 0x04010000)
 282     /* Server versions after 4.1 will send updates */
 283     recheck_rights = 0;
 284   if((server_version_bytes & 0xFF) == 0x01)
 285     /* Development servers might do regardless of their version number */
 286     recheck_rights = 0;
 287   if(recheck_rights)
 288     check_rights();
 289   event_raise("periodic-fast", 0);
 290   return TRUE;
 291 }
 292
 293 /** @brief Called when a NOP completes */
 294 static void nop_completed(void attribute((unused)) *v,
 295                           const char attribute((unused)) *err) {
 296   /* TODO report the error somewhere */
 297   nop_in_flight = 0;
 298 }
 299
 300 /** @brief Called from time to time to arrange for a NOP to be sent
 301  *
 302  * At most one NOP remains in flight at any moment.  If the client is not
 303  * currently connected then no NOP is sent.
 304  */
 305 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 306   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 307     nop_in_flight = 1;
 308     disorder_eclient_nop(client, nop_completed, 0);
 309   }
 310   if(rtp_supported) {
 311     const int rtp_was_running = rtp_is_running;
 312     rtp_is_running = rtp_running();
 313     if(rtp_was_running != rtp_is_running)
 314       event_raise("rtp-changed", 0);
 315   }
 316   return TRUE;                          /* keep call me please */
 317 }
 318
 319 /** @brief Called when a rtp-address command succeeds */
 320 static void got_rtp_address(void attribute((unused)) *v,
 321                             const char *err,
 322                             int attribute((unused)) nvec,
 323                             char attribute((unused)) **vec) {
 324   const int rtp_was_supported = rtp_supported;
 325   const int rtp_was_running = rtp_is_running;
 326
 327   ++suppress_actions;
 328   rtp_address_in_flight = 0;
 329   if(err) {
 330     /* An error just means that we're not using network play */
 331     rtp_supported = 0;
 332     rtp_is_running = 0;
 333   } else {
 334     rtp_supported = 1;
 335     rtp_is_running = rtp_running();
 336   }
 337   /*fprintf(stderr, "rtp supported->%d, running->%d\n",
 338           rtp_supported, rtp_is_running);*/
 339   if(rtp_supported != rtp_was_supported
 340      || rtp_is_running != rtp_was_running)
 341     event_raise("rtp-changed", 0);
 342   --suppress_actions;
 343 }
 344
 345 /** @brief Called to check whether RTP play is available */
 346 static void check_rtp_address(const char attribute((unused)) *event,
 347                               void attribute((unused)) *eventdata,
 348                               void attribute((unused)) *callbackdata) {
 349   if(!rtp_address_in_flight) {
 350     //fprintf(stderr, "checking rtp\n");
 351     disorder_eclient_rtp_address(client, got_rtp_address, NULL);
 352   }
 353 }
 354
 355 /* main -------------------------------------------------------------------- */
 356
 357 static const struct option options[] = {
 358   { "help", no_argument, 0, 'h' },
 359   { "version", no_argument, 0, 'V' },
 360   { "config", required_argument, 0, 'c' },
 361   { "tufnel", no_argument, 0, 't' },
 362   { "debug", no_argument, 0, 'd' },
 363   { 0, 0, 0, 0 }
 364 };
 365
 366 /* display usage message and terminate */
 367 static void help(void) {
 368   xprintf("Disobedience - GUI client for DisOrder\n"
 369           "\n"
 370           "Usage:\n"
 371           "  disobedience [OPTIONS]\n"
 372           "Options:\n"
 373           "  --help, -h              Display usage message\n"
 374           "  --version, -V           Display version number\n"
 375           "  --config PATH, -c PATH  Set configuration file\n"
 376           "  --debug, -d             Turn on debugging\n"
 377           "\n"
 378           "Also GTK+ options will work.\n");
 379   xfclose(stdout);
 380   exit(0);
 381 }
 382
 383 static void version_completed(void attribute((unused)) *v,
 384                               const char attribute((unused)) *err,
 385                               const char *ver) {
 386   long major, minor, patch, dev;
 387
 388   if(!ver) {
 389     server_version = 0;
 390     server_version_bytes = 0;
 391     return;
 392   }
 393   server_version = ver;
 394   server_version_bytes = 0;
 395   major = strtol(ver, (char **)&ver, 10);
 396   if(*ver != '.')
 397     return;
 398   ++ver;
 399   minor = strtol(ver, (char **)&ver, 10);
 400   if(*ver == '.') {
 401     ++ver;
 402     patch = strtol(ver, (char **)&ver, 10);
 403   } else
 404     patch = 0;
 405   if(*ver) {
 406     if(*ver == '+') {
 407       dev = 1;
 408       ++ver;
 409     }
 410     if(*ver)
 411       dev = 2;
 412   } else
 413     dev = 0;
 414   server_version_bytes = (major << 24) + (minor << 16) + (patch << 8) + dev;
 415 }
 416
 417 void logged_in(void) {
 418   /* reset the clients */
 419   disorder_eclient_close(client);
 420   disorder_eclient_close(logclient);
 421   rtp_supported = 0;
 422   event_raise("logged-in", 0);
 423   /* Force the periodic checks */
 424   periodic_slow(0);
 425   periodic_fast(0);
 426   /* Recheck server version */
 427   disorder_eclient_version(client, version_completed, 0);
 428   disorder_eclient_enable_connect(client);
 429   disorder_eclient_enable_connect(logclient);
 430 }
 431
 432 int main(int argc, char **argv) {
 433   int n;
 434   gboolean gtkok;
 435
 436   mem_init();
 437   /* garbage-collect PCRE's memory */
 438   pcre_malloc = xmalloc;
 439   pcre_free = xfree;
 440   if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "error calling setlocale");
 441   gtkok = gtk_init_check(&argc, &argv);
 442   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 443     switch(n) {
 444     case 'h': help();
 445     case 'V': version("disobedience");
 446     case 'c': configfile = optarg; break;
 447     case 'd': debugging = 1; break;
 448     case 't': goesupto = 11; break;
 449     default: disorder_fatal(0, "invalid option");
 450     }
 451   }
 452   if(!gtkok)
 453     disorder_fatal(0, "failed to initialize GTK+");
 454   /* gcrypt initialization */
 455   if(!gcry_check_version(NULL))
 456     disorder_fatal(0, "gcry_check_version failed");
 457   gcry_control(GCRYCTL_INIT_SECMEM, 0);
 458   gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
 459   signal(SIGPIPE, SIG_IGN);
 460   init_styles();
 461   load_settings();
 462   /* create the event loop */
 463   D(("create main loop"));
 464   mainloop = g_main_loop_new(0, 0);
 465   if(config_read(0, NULL)) disorder_fatal(0, "cannot read configuration");
 466   /* we'll need mixer support */
 467   backend = uaudio_apis[0];
 468   if(backend->configure)
 469     backend->configure();
 470   if(backend->open_mixer)
 471     backend->open_mixer();
 472   /* create the clients */
 473   if(!(client = gtkclient())
 474      || !(logclient = gtkclient()))
 475     return 1;                           /* already reported an error */
 476   /* periodic operations (e.g. expiring the cache, checking local volume) */
 477   g_timeout_add(600000/*milliseconds*/, periodic_slow, 0);
 478   g_timeout_add(1000/*milliseconds*/, periodic_fast, 0);
 479   /* global tooltips */
 480   tips = gtk_tooltips_new();
 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);
 485   /* issue a NOP every so often */
 486   g_timeout_add_full(G_PRIORITY_LOW,
 487                      2000/*interval, ms*/,
 488                      maybe_send_nop,
 489                      0/*data*/,
 490                      0/*notify*/);
 491   /* Start monitoring the log */
 492   disorder_eclient_log(logclient, &log_callbacks, 0);
 493   /* Initiate all the checks */
 494   periodic_fast(0);
 495   disorder_eclient_version(client, version_completed, 0);
 496   event_register("log-connected", check_rtp_address, 0);
 497   suppress_actions = 0;
 498 #if PLAYLISTS
 499   playlists_init();
 500 #endif
 501   /* If no password is set yet pop up a login box */
 502   if(!config->password)
 503     login_box();
 504   D(("enter main loop"));
 505   g_main_loop_run(mainloop);
 506   return 0;
 507 }
 508
 509 /*
 510 Local Variables:
 511 c-basic-offset:2
 512 comment-column:40
 513 fill-column:79
 514 indent-tabs-mode:nil
 515 End:
 516 */