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 True if RTP play is available
  89  *
  90  * This is a bit of a bodge...
  91  */
  92 int rtp_supported;
  93
  94 /** @brief True if RTP play is enabled */
  95 int rtp_is_running;
  96
  97 /** @brief Server version */
  98 const char *server_version;
  99
 100 /** @brief Parsed server version */
 101 long server_version_bytes;
 102
 103 static GtkWidget *queue;
 104
 105 static GtkWidget *notebook_box;
 106
 107 static int main_current_fullmode = 1;
 108
 109 static void check_rtp_address(const char *event,
 110                               void *eventdata,
 111                               void *callbackdata);
 112
 113 /* Window creation --------------------------------------------------------- */
 114
 115 /* Note that all the client operations kicked off from here will only complete
 116  * after we've entered the event loop. */
 117
 118 /** @brief Called when main window is deleted
 119  *
 120  * Terminates the program.
 121  */
 122 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 123                              GdkEvent attribute((unused)) *event,
 124                              gpointer attribute((unused)) data) {
 125   D(("delete_event"));
 126   exit(0);                              /* die immediately */
 127 }
 128
 129 /** @brief Called when the current tab is switched
 130  *
 131  * Updates the menu settings to correspond to the new page.
 132  */
 133 static void tab_switched(GtkNotebook *notebook,
 134                          GtkNotebookPage attribute((unused)) *page,
 135                          guint page_num,
 136                          gpointer attribute((unused)) user_data) {
 137   GtkWidget *const tab = gtk_notebook_get_nth_page(notebook, page_num);
 138   const struct tabtype *const t = g_object_get_data(G_OBJECT(tab), "type");
 139   assert(t != 0);
 140   if(t->selected)
 141     t->selected();
 142 }
 143
 144 /** @brief Create the report box */
 145 static GtkWidget *report_box(void) {
 146   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 147
 148   report_label = gtk_label_new("");
 149   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 150   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 151   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 152   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 153   return vbox;
 154 }
 155
 156 /** @brief Create and populate the main tab group */
 157 static GtkWidget *notebook(void) {
 158   tabs = gtk_notebook_new();
 159   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 160    * produces not too dreadful appearance */
 161   gtk_widget_set_style(tabs, tool_style);
 162   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 163   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue = queue_widget(),
 164                            gtk_label_new("Queue"));
 165   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 166                            gtk_label_new("Recent"));
 167   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 168                            gtk_label_new("Choose"));
 169   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 170                            gtk_label_new("Added"));
 171   return tabs;
 172 }
 173
 174 static void main_minimode(const char attribute((unused)) *event,
 175                           void attribute((unused)) *evendata,
 176                           void attribute((unused)) *callbackdata) {
 177   if(full_mode == main_current_fullmode)
 178     return;
 179   if(full_mode) {
 180     /* Remove queue from display */
 181     g_object_ref(queue);
 182     gtk_container_remove(GTK_CONTAINER(notebook_box), queue);
 183     /* Add queue to notebook */
 184     gtk_notebook_prepend_page(GTK_NOTEBOOK(tabs), queue,
 185                               gtk_label_new("Queue"));
 186     g_object_unref(queue);
 187     /* Add notebook to display */
 188     gtk_container_add(GTK_CONTAINER(notebook_box), tabs);
 189     g_object_unref(tabs);
 190     /* Show the queue (bit confusing otherwise!) */
 191     gtk_notebook_set_current_page(GTK_NOTEBOOK(tabs), 0);
 192   } else {
 193     /* Remove notebook from display */
 194     g_object_ref(tabs);
 195     gtk_container_remove(GTK_CONTAINER(notebook_box), tabs);
 196     /* Remove queue from notebook */
 197     g_object_ref(queue);
 198     gtk_container_remove(GTK_CONTAINER(tabs), queue);
 199     /* Add queue to display */
 200     gtk_container_add(GTK_CONTAINER(notebook_box), queue);
 201     g_object_unref(queue);
 202   }
 203   main_current_fullmode = full_mode;
 204 }
 205
 206 /** @brief Create and populate the main window */
 207 static void make_toplevel_window(void) {
 208   GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
 209   GtkWidget *const rb = report_box();
 210
 211   D(("top_window"));
 212   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 213   /* default size is too small */
 214   gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
 215   /* terminate on close */
 216   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 217                    G_CALLBACK(delete_event), NULL);
 218   /* lay out the window */
 219   gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
 220   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 221   /* lay out the vbox */
 222   gtk_box_pack_start(GTK_BOX(vbox),
 223                      menubar(toplevel),
 224                      FALSE,             /* expand */
 225                      FALSE,             /* fill */
 226                      0);
 227   gtk_box_pack_start(GTK_BOX(vbox),
 228                      control_widget(),
 229                      FALSE,             /* expand */
 230                      FALSE,             /* fill */
 231                      0);
 232   notebook_box = gtk_vbox_new(FALSE, 0);
 233   gtk_container_add(GTK_CONTAINER(notebook_box), notebook());
 234   gtk_container_add(GTK_CONTAINER(vbox), notebook_box);
 235   gtk_box_pack_end(GTK_BOX(vbox),
 236                    rb,
 237                    FALSE,             /* expand */
 238                    FALSE,             /* fill */
 239                    0);
 240   gtk_widget_set_style(toplevel, tool_style);
 241   event_register("mini-mode-changed", main_minimode, 0);
 242 }
 243
 244 static void userinfo_rights_completed(void attribute((unused)) *v,
 245                                       const char *err,
 246                                       const char *value) {
 247   rights_type r;
 248
 249   if(err) {
 250     popup_protocol_error(0, err);
 251     r = 0;
 252   } else {
 253     if(parse_rights(value, &r, 0))
 254       r = 0;
 255   }
 256   /* If rights have changed, signal everything that cares */
 257   if(r != last_rights) {
 258     last_rights = r;
 259     ++suppress_actions;
 260     event_raise("rights-changed", 0);
 261     --suppress_actions;
 262   }
 263   rights_lookup_in_flight = 0;
 264 }
 265
 266 static void check_rights(void) {
 267   if(!rights_lookup_in_flight) {
 268     rights_lookup_in_flight = 1;
 269     disorder_eclient_userinfo(client,
 270                               userinfo_rights_completed,
 271                               config->username, "rights",
 272                               0);
 273   }
 274 }
 275
 276 /** @brief Called occasionally */
 277 static gboolean periodic_slow(gpointer attribute((unused)) data) {
 278   D(("periodic_slow"));
 279   /* Expire cached data */
 280   cache_expire();
 281   /* Update everything to be sure that the connection to the server hasn't
 282    * mysteriously gone stale on us. */
 283   all_update();
 284   event_raise("periodic-slow", 0);
 285   /* Recheck RTP status too */
 286   check_rtp_address(0, 0, 0);
 287   return TRUE;                          /* don't remove me */
 288 }
 289
 290 /** @brief Called frequently */
 291 static gboolean periodic_fast(gpointer attribute((unused)) data) {
 292 #if 0                                   /* debugging hack */
 293   static struct timeval last;
 294   struct timeval now;
 295   double delta;
 296
 297   xgettimeofday(&now, 0);
 298   if(last.tv_sec) {
 299     delta = (now.tv_sec + now.tv_sec / 1.0E6)
 300       - (last.tv_sec + last.tv_sec / 1.0E6);
 301     if(delta >= 1.0625)
 302       fprintf(stderr, "%f: %fs between 1s heartbeats\n",
 303               now.tv_sec + now.tv_sec / 1.0E6,
 304               delta);
 305   }
 306   last = now;
 307 #endif
 308   if(rtp_supported && backend && backend->get_volume) {
 309     int nl, nr;
 310     backend->get_volume(&nl, &nr);
 311     if(nl != volume_l || nr != volume_r) {
 312       volume_l = nl;
 313       volume_r = nr;
 314       event_raise("volume-changed", 0);
 315     }
 316   }
 317   /* Periodically check what our rights are */
 318   int recheck_rights = 1;
 319   if(server_version_bytes >= 0x04010000)
 320     /* Server versions after 4.1 will send updates */
 321     recheck_rights = 0;
 322   if((server_version_bytes & 0xFF) == 0x01)
 323     /* Development servers might do regardless of their version number */
 324     recheck_rights = 0;
 325   if(recheck_rights)
 326     check_rights();
 327   event_raise("periodic-fast", 0);
 328   return TRUE;
 329 }
 330
 331 /** @brief Called when a NOP completes */
 332 static void nop_completed(void attribute((unused)) *v,
 333                           const char attribute((unused)) *err) {
 334   /* TODO report the error somewhere */
 335   nop_in_flight = 0;
 336 }
 337
 338 /** @brief Called from time to time to arrange for a NOP to be sent
 339  *
 340  * At most one NOP remains in flight at any moment.  If the client is not
 341  * currently connected then no NOP is sent.
 342  */
 343 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 344   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 345     nop_in_flight = 1;
 346     disorder_eclient_nop(client, nop_completed, 0);
 347   }
 348   if(rtp_supported) {
 349     const int rtp_was_running = rtp_is_running;
 350     rtp_is_running = rtp_running();
 351     if(rtp_was_running != rtp_is_running)
 352       event_raise("rtp-changed", 0);
 353   }
 354   return TRUE;                          /* keep call me please */
 355 }
 356
 357 /** @brief Called when a rtp-address command succeeds */
 358 static void got_rtp_address(void attribute((unused)) *v,
 359                             const char *err,
 360                             int attribute((unused)) nvec,
 361                             char attribute((unused)) **vec) {
 362   const int rtp_was_supported = rtp_supported;
 363   const int rtp_was_running = rtp_is_running;
 364
 365   ++suppress_actions;
 366   rtp_address_in_flight = 0;
 367   if(err) {
 368     /* An error just means that we're not using network play */
 369     rtp_supported = 0;
 370     rtp_is_running = 0;
 371   } else {
 372     rtp_supported = 1;
 373     rtp_is_running = rtp_running();
 374   }
 375   /*fprintf(stderr, "rtp supported->%d, running->%d\n",
 376           rtp_supported, rtp_is_running);*/
 377   if(rtp_supported != rtp_was_supported
 378      || rtp_is_running != rtp_was_running)
 379     event_raise("rtp-changed", 0);
 380   --suppress_actions;
 381 }
 382
 383 /** @brief Called to check whether RTP play is available */
 384 static void check_rtp_address(const char attribute((unused)) *event,
 385                               void attribute((unused)) *eventdata,
 386                               void attribute((unused)) *callbackdata) {
 387   if(!rtp_address_in_flight) {
 388     //fprintf(stderr, "checking rtp\n");
 389     disorder_eclient_rtp_address(client, got_rtp_address, NULL);
 390   }
 391 }
 392
 393 /* main -------------------------------------------------------------------- */
 394
 395 static const struct option options[] = {
 396   { "help", no_argument, 0, 'h' },
 397   { "version", no_argument, 0, 'V' },
 398   { "config", required_argument, 0, 'c' },
 399   { "tufnel", no_argument, 0, 't' },
 400   { "debug", no_argument, 0, 'd' },
 401   { 0, 0, 0, 0 }
 402 };
 403
 404 /* display usage message and terminate */
 405 static void help(void) {
 406   xprintf("Disobedience - GUI client for DisOrder\n"
 407           "\n"
 408           "Usage:\n"
 409           "  disobedience [OPTIONS]\n"
 410           "Options:\n"
 411           "  --help, -h              Display usage message\n"
 412           "  --version, -V           Display version number\n"
 413           "  --config PATH, -c PATH  Set configuration file\n"
 414           "  --debug, -d             Turn on debugging\n"
 415           "\n"
 416           "Also GTK+ options will work.\n");
 417   xfclose(stdout);
 418   exit(0);
 419 }
 420
 421 static void version_completed(void attribute((unused)) *v,
 422                               const char attribute((unused)) *err,
 423                               const char *ver) {
 424   long major, minor, patch, dev;
 425
 426   if(!ver) {
 427     server_version = 0;
 428     server_version_bytes = 0;
 429     return;
 430   }
 431   server_version = ver;
 432   server_version_bytes = 0;
 433   major = strtol(ver, (char **)&ver, 10);
 434   if(*ver != '.')
 435     return;
 436   ++ver;
 437   minor = strtol(ver, (char **)&ver, 10);
 438   if(*ver == '.') {
 439     ++ver;
 440     patch = strtol(ver, (char **)&ver, 10);
 441   } else
 442     patch = 0;
 443   if(*ver) {
 444     if(*ver == '+') {
 445       dev = 1;
 446       ++ver;
 447     }
 448     if(*ver)
 449       dev = 2;
 450   } else
 451     dev = 0;
 452   server_version_bytes = (major << 24) + (minor << 16) + (patch << 8) + dev;
 453 }
 454
 455 void logged_in(void) {
 456   /* reset the clients */
 457   disorder_eclient_close(client);
 458   disorder_eclient_close(logclient);
 459   rtp_supported = 0;
 460   event_raise("logged-in", 0);
 461   /* Force the periodic checks */
 462   periodic_slow(0);
 463   periodic_fast(0);
 464   /* Recheck server version */
 465   disorder_eclient_version(client, version_completed, 0);
 466   disorder_eclient_enable_connect(client);
 467   disorder_eclient_enable_connect(logclient);
 468 }
 469
 470 int main(int argc, char **argv) {
 471   int n;
 472   gboolean gtkok;
 473
 474   mem_init();
 475   /* garbage-collect PCRE's memory */
 476   pcre_malloc = xmalloc;
 477   pcre_free = xfree;
 478   if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "error calling setlocale");
 479   gtkok = gtk_init_check(&argc, &argv);
 480   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 481     switch(n) {
 482     case 'h': help();
 483     case 'V': version("disobedience");
 484     case 'c': configfile = optarg; break;
 485     case 'd': debugging = 1; break;
 486     case 't': goesupto = 11; break;
 487     default: disorder_fatal(0, "invalid option");
 488     }
 489   }
 490   if(!gtkok)
 491     disorder_fatal(0, "failed to initialize GTK+");
 492   /* gcrypt initialization */
 493   if(!gcry_check_version(NULL))
 494     disorder_fatal(0, "gcry_check_version failed");
 495   gcry_control(GCRYCTL_INIT_SECMEM, 0);
 496   gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
 497   signal(SIGPIPE, SIG_IGN);
 498   init_styles();
 499   load_settings();
 500   /* create the event loop */
 501   D(("create main loop"));
 502   mainloop = g_main_loop_new(0, 0);
 503   if(config_read(0, NULL)) disorder_fatal(0, "cannot read configuration");
 504   /* we'll need mixer support */
 505   backend = uaudio_apis[0];
 506   if(backend->configure)
 507     backend->configure();
 508   if(backend->open_mixer)
 509     backend->open_mixer();
 510   /* create the clients */
 511   if(!(client = gtkclient())
 512      || !(logclient = gtkclient()))
 513     return 1;                           /* already reported an error */
 514   /* periodic operations (e.g. expiring the cache, checking local volume) */
 515   g_timeout_add(600000/*milliseconds*/, periodic_slow, 0);
 516   g_timeout_add(1000/*milliseconds*/, periodic_fast, 0);
 517   make_toplevel_window();
 518   /* reset styles now everything has its name */
 519   gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
 520   gtk_widget_show_all(toplevel);
 521   /* issue a NOP every so often */
 522   g_timeout_add_full(G_PRIORITY_LOW,
 523                      2000/*interval, ms*/,
 524                      maybe_send_nop,
 525                      0/*data*/,
 526                      0/*notify*/);
 527   /* Start monitoring the log */
 528   disorder_eclient_log(logclient, &log_callbacks, 0);
 529   /* Initiate all the checks */
 530   periodic_fast(0);
 531   disorder_eclient_version(client, version_completed, 0);
 532   event_register("log-connected", check_rtp_address, 0);
 533   suppress_actions = 0;
 534   playlists_init();
 535   /* If no password is set yet pop up a login box */
 536   if(!config->password)
 537     login_box();
 538   D(("enter main loop"));
 539   g_main_loop_run(mainloop);
 540   return 0;
 541 }
 542
 543 /*
 544 Local Variables:
 545 c-basic-offset:2
 546 comment-column:40
 547 fill-column:79
 548 indent-tabs-mode:nil
 549 End:
 550 */