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 "regexp.h"
  24 #include "version.h"
  25
  26 #include <getopt.h>
  27 #include <locale.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 Mini-mode widget for playing track */
  48 GtkWidget *playing_mini;
  49
  50 /** @brief Main client */
  51 disorder_eclient *client;
  52
  53 /** @brief Log client */
  54 disorder_eclient *logclient;
  55
  56 /** @brief Last reported state
  57  *
  58  * This is updated by log_state().
  59  */
  60 unsigned long last_state;
  61
  62 /** @brief True if some track is playing
  63  *
  64  * This ought to be removed in favour of last_state & DISORDER_PLAYING
  65  */
  66 int playing;
  67
  68 /** @brief Left channel volume */
  69 int volume_l;
  70
  71 /** @brief Right channel volume */
  72 int volume_r;
  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 void check_rtp_address(const char *event,
 108                               void *eventdata,
 109                               void *callbackdata);
 110
 111 /* Window creation --------------------------------------------------------- */
 112
 113 /* Note that all the client operations kicked off from here will only complete
 114  * after we've entered the event loop. */
 115
 116 /** @brief Called when main window is deleted
 117  *
 118  * Terminates the program.
 119  */
 120 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 121                              GdkEvent attribute((unused)) *event,
 122                              gpointer attribute((unused)) data) {
 123   D(("delete_event"));
 124   exit(0);                              /* die immediately */
 125 }
 126
 127 /** @brief Called when the current tab is switched
 128  *
 129  * Updates the menu settings to correspond to the new page.
 130  */
 131 static void tab_switched(GtkNotebook *notebook,
 132                          GtkNotebookPage attribute((unused)) *page,
 133                          guint page_num,
 134                          gpointer attribute((unused)) user_data) {
 135   GtkWidget *const tab = gtk_notebook_get_nth_page(notebook, page_num);
 136   const struct tabtype *const t = g_object_get_data(G_OBJECT(tab), "type");
 137   assert(t != 0);
 138   if(t->selected)
 139     t->selected();
 140 }
 141
 142 /** @brief Create the report box */
 143 static GtkWidget *report_box(void) {
 144   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 145
 146   report_label = gtk_label_new("");
 147   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 148   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 149   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 150   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 151   return vbox;
 152 }
 153
 154 /** @brief Create and populate the main tab group */
 155 static GtkWidget *notebook(void) {
 156   tabs = gtk_notebook_new();
 157   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 158    * produces not too dreadful appearance */
 159   gtk_widget_set_style(tabs, tool_style);
 160   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 161   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue = queue_widget(),
 162                            gtk_label_new("Queue"));
 163   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 164                            gtk_label_new("Recent"));
 165   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 166                            gtk_label_new("Choose"));
 167   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 168                            gtk_label_new("Added"));
 169   return tabs;
 170 }
 171
 172 /* Tracking of window sizes */
 173 static int toplevel_width = 640, toplevel_height = 480;
 174 static int mini_width = 480, mini_height = 140;
 175 static struct timeval last_mode_switch;
 176
 177 static void main_minimode(const char attribute((unused)) *event,
 178                           void attribute((unused)) *evendata,
 179                           void attribute((unused)) *callbackdata) {
 180   if(full_mode) {
 181     gtk_window_resize(GTK_WINDOW(toplevel), toplevel_width, toplevel_height);
 182     gtk_widget_show(tabs);
 183     gtk_widget_hide(playing_mini);
 184     /* Show the queue (bit confusing otherwise!) */
 185     gtk_notebook_set_current_page(GTK_NOTEBOOK(tabs), 0);
 186   } else {
 187     gtk_window_resize(GTK_WINDOW(toplevel), mini_width, mini_height);
 188     gtk_widget_hide(tabs);
 189     gtk_widget_show(playing_mini);
 190   }
 191   xgettimeofday(&last_mode_switch, NULL);
 192 }
 193
 194 /* Called when the window size is allocate */
 195 static void toplevel_size_allocate(GtkWidget attribute((unused)) *w,
 196                                    GtkAllocation *a,
 197                                    gpointer attribute((unused)) user_data) {
 198   struct timeval now;
 199   xgettimeofday(&now, NULL);
 200   if(tvdouble(tvsub(now, last_mode_switch)) < 0.5) {
 201     /* Suppress size-allocate signals that are within half a second of a mode
 202      * switch: they are quite likely to be the result of re-arranging widgets
 203      * within the old size, not the application of the new size.  Yes, this is
 204      * a disgusting hack! */
 205     return;                             /* OMG too soon! */
 206   }
 207   if(full_mode) {
 208     toplevel_width = a->width;
 209     toplevel_height = a->height;
 210   } else {
 211     mini_width = a->width;
 212     mini_height = a->height;
 213   }
 214 }
 215
 216 /* Periodically check the toplevel's size
 217  * (the hack in toplevel_size_allocate() means we could in principle
 218  * miss a user-initiated resize)
 219  */
 220 static void check_toplevel_size(const char attribute((unused)) *event,
 221                                 void attribute((unused)) *evendata,
 222                                 void attribute((unused)) *callbackdata) {
 223   GtkAllocation a;
 224   gtk_window_get_size(GTK_WINDOW(toplevel), &a.width, &a.height);
 225   toplevel_size_allocate(NULL, &a, NULL);
 226 }
 227
 228 static void hack_window_title(const char attribute((unused)) *event,
 229                               void attribute((unused)) *eventdata,
 230                               void attribute((unused)) *callbackdata) {
 231   char *p;
 232   const char *note;
 233   static const char *last_note = 0;
 234
 235   if(!(last_state & DISORDER_CONNECTED))
 236     note = "(disconnected)";
 237   else if(last_state & DISORDER_TRACK_PAUSED)
 238     note = "(paused)";
 239   else if(playing_track) {
 240     byte_asprintf(&p, "'%s' by %s, from '%s'",
 241                   namepart(playing_track->track, "display", "title"),
 242                   namepart(playing_track->track, "display", "artist"),
 243                   namepart(playing_track->track, "display", "album"));
 244     note = p;
 245   } else if(!(last_state & DISORDER_PLAYING_ENABLED))
 246     note = "(playing disabled)";
 247   else if(!(last_state & DISORDER_RANDOM_ENABLED))
 248     note = "(random play disabled)";
 249   else
 250     note = "(nothing to play for unknown reason)";
 251
 252   if(last_note && !strcmp(note, last_note))
 253     return;
 254   last_note = xstrdup(note);
 255   byte_asprintf(&p, "Disobedience: %s", note);
 256   gtk_window_set_title(GTK_WINDOW(toplevel), p);
 257 }
 258
 259 /** @brief Create and populate the main window */
 260 static void make_toplevel_window(void) {
 261   GtkWidget *const vbox = gtk_vbox_new(FALSE/*homogeneous*/, 1/*spacing*/);
 262   GtkWidget *const rb = report_box();
 263
 264   D(("top_window"));
 265   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 266   /* default size is too small */
 267   gtk_window_set_default_size(GTK_WINDOW(toplevel),
 268                               toplevel_width, toplevel_height);
 269   /* terminate on close */
 270   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 271                    G_CALLBACK(delete_event), NULL);
 272   /* track size */
 273   g_signal_connect(G_OBJECT(toplevel), "size-allocate",
 274                    G_CALLBACK(toplevel_size_allocate), NULL);
 275   /* lay out the window */
 276   hack_window_title(0, 0, 0);
 277   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 278   /* lay out the vbox */
 279   gtk_box_pack_start(GTK_BOX(vbox),
 280                      menubar(toplevel),
 281                      FALSE,             /* expand */
 282                      FALSE,             /* fill */
 283                      0);
 284   gtk_box_pack_start(GTK_BOX(vbox),
 285                      control_widget(),
 286                      FALSE,             /* expand */
 287                      FALSE,             /* fill */
 288                      0);
 289   playing_mini = playing_widget();
 290   gtk_box_pack_start(GTK_BOX(vbox),
 291                      playing_mini,
 292                      FALSE,
 293                      FALSE,
 294                      0);
 295   notebook_box = gtk_vbox_new(FALSE, 0);
 296   gtk_container_add(GTK_CONTAINER(notebook_box), notebook());
 297   gtk_container_add(GTK_CONTAINER(vbox), notebook_box);
 298   gtk_box_pack_end(GTK_BOX(vbox),
 299                    rb,
 300                    FALSE,             /* expand */
 301                    FALSE,             /* fill */
 302                    0);
 303   gtk_widget_set_style(toplevel, tool_style);
 304   event_register("mini-mode-changed", main_minimode, 0);
 305   event_register("periodic-fast", check_toplevel_size, 0);
 306   event_register("playing-track-changed", hack_window_title, 0);
 307   event_register("enabled-changed", hack_window_title, 0);
 308   event_register("random-changed", hack_window_title, 0);
 309   event_register("pause-changed", hack_window_title, 0);
 310   event_register("playing-changed", hack_window_title, 0);
 311   event_register("connected-changed", hack_window_title, 0);
 312   event_register("lookups-completed", hack_window_title, 0);
 313 }
 314
 315 static void userinfo_rights_completed(void attribute((unused)) *v,
 316                                       const char *err,
 317                                       const char *value) {
 318   rights_type r;
 319
 320   if(err) {
 321     popup_protocol_error(0, err);
 322     r = 0;
 323   } else {
 324     if(parse_rights(value, &r, 0))
 325       r = 0;
 326   }
 327   /* If rights have changed, signal everything that cares */
 328   if(r != last_rights) {
 329     last_rights = r;
 330     ++suppress_actions;
 331     event_raise("rights-changed", 0);
 332     --suppress_actions;
 333   }
 334   rights_lookup_in_flight = 0;
 335 }
 336
 337 static void check_rights(void) {
 338   if(!rights_lookup_in_flight) {
 339     rights_lookup_in_flight = 1;
 340     disorder_eclient_userinfo(client,
 341                               userinfo_rights_completed,
 342                               config->username, "rights",
 343                               0);
 344   }
 345 }
 346
 347 /** @brief Called occasionally */
 348 static gboolean periodic_slow(gpointer attribute((unused)) data) {
 349   D(("periodic_slow"));
 350   /* Expire cached data */
 351   cache_expire();
 352   /* Update everything to be sure that the connection to the server hasn't
 353    * mysteriously gone stale on us. */
 354   all_update();
 355   event_raise("periodic-slow", 0);
 356   /* Recheck RTP status too */
 357   check_rtp_address(0, 0, 0);
 358   return TRUE;                          /* don't remove me */
 359 }
 360
 361 /** @brief Called frequently */
 362 static gboolean periodic_fast(gpointer attribute((unused)) data) {
 363 #if 0                                   /* debugging hack */
 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 #endif
 379   if(rtp_supported) {
 380     int nl, nr;
 381     if (!rtp_getvol(&nl, &nr) && (nl != volume_l || nr != volume_r)) {
 382       volume_l = nl;
 383       volume_r = nr;
 384       event_raise("volume-changed", 0);
 385     }
 386   }
 387   /* Periodically check what our rights are */
 388   int recheck_rights = 1;
 389   if(server_version_bytes >= 0x04010000)
 390     /* Server versions after 4.1 will send updates */
 391     recheck_rights = 0;
 392   if((server_version_bytes & 0xFF) == 0x01)
 393     /* Development servers might do regardless of their version number */
 394     recheck_rights = 0;
 395   if(recheck_rights)
 396     check_rights();
 397   event_raise("periodic-fast", 0);
 398   return TRUE;
 399 }
 400
 401 /** @brief Called when a NOP completes */
 402 static void nop_completed(void attribute((unused)) *v,
 403                           const char attribute((unused)) *err) {
 404   /* TODO report the error somewhere */
 405   nop_in_flight = 0;
 406 }
 407
 408 /** @brief Called from time to time to arrange for a NOP to be sent
 409  *
 410  * At most one NOP remains in flight at any moment.  If the client is not
 411  * currently connected then no NOP is sent.
 412  */
 413 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 414   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 415     nop_in_flight = 1;
 416     disorder_eclient_nop(client, nop_completed, 0);
 417   }
 418   if(rtp_supported) {
 419     const int rtp_was_running = rtp_is_running;
 420     rtp_is_running = rtp_running();
 421     if(rtp_was_running != rtp_is_running)
 422       event_raise("rtp-changed", 0);
 423   }
 424   return TRUE;                          /* keep call me please */
 425 }
 426
 427 /** @brief Called when a rtp-address command succeeds */
 428 static void got_rtp_address(void attribute((unused)) *v,
 429                             const char *err,
 430                             int attribute((unused)) nvec,
 431                             char attribute((unused)) **vec) {
 432   const int rtp_was_supported = rtp_supported;
 433   const int rtp_was_running = rtp_is_running;
 434
 435   ++suppress_actions;
 436   rtp_address_in_flight = 0;
 437   if(err) {
 438     /* An error just means that we're not using network play */
 439     rtp_supported = 0;
 440     rtp_is_running = 0;
 441   } else {
 442     rtp_supported = 1;
 443     rtp_is_running = rtp_running();
 444   }
 445   /*fprintf(stderr, "rtp supported->%d, running->%d\n",
 446           rtp_supported, rtp_is_running);*/
 447   if(rtp_supported != rtp_was_supported
 448      || rtp_is_running != rtp_was_running)
 449     event_raise("rtp-changed", 0);
 450   --suppress_actions;
 451 }
 452
 453 /** @brief Called to check whether RTP play is available */
 454 static void check_rtp_address(const char attribute((unused)) *event,
 455                               void attribute((unused)) *eventdata,
 456                               void attribute((unused)) *callbackdata) {
 457   if(!rtp_address_in_flight) {
 458     //fprintf(stderr, "checking rtp\n");
 459     disorder_eclient_rtp_address(client, got_rtp_address, NULL);
 460   }
 461 }
 462
 463 /* main -------------------------------------------------------------------- */
 464
 465 static const struct option options[] = {
 466   { "help", no_argument, 0, 'h' },
 467   { "version", no_argument, 0, 'V' },
 468   { "config", required_argument, 0, 'c' },
 469   { "tufnel", no_argument, 0, 't' },
 470   { "debug", no_argument, 0, 'd' },
 471   { 0, 0, 0, 0 }
 472 };
 473
 474 /* display usage message and terminate */
 475 static void help(void) {
 476   xprintf("Disobedience - GUI client for DisOrder\n"
 477           "\n"
 478           "Usage:\n"
 479           "  disobedience [OPTIONS]\n"
 480           "Options:\n"
 481           "  --help, -h              Display usage message\n"
 482           "  --version, -V           Display version number\n"
 483           "  --config PATH, -c PATH  Set configuration file\n"
 484           "  --debug, -d             Turn on debugging\n"
 485           "\n"
 486           "Also GTK+ options will work.\n");
 487   xfclose(stdout);
 488   exit(0);
 489 }
 490
 491 static void version_completed(void attribute((unused)) *v,
 492                               const char attribute((unused)) *err,
 493                               const char *ver) {
 494   long major, minor, patch, dev;
 495
 496   if(!ver) {
 497     server_version = 0;
 498     server_version_bytes = 0;
 499     return;
 500   }
 501   server_version = ver;
 502   server_version_bytes = 0;
 503   major = strtol(ver, (char **)&ver, 10);
 504   if(*ver != '.')
 505     return;
 506   ++ver;
 507   minor = strtol(ver, (char **)&ver, 10);
 508   if(*ver == '.') {
 509     ++ver;
 510     patch = strtol(ver, (char **)&ver, 10);
 511   } else
 512     patch = 0;
 513   if(*ver) {
 514     if(*ver == '+') {
 515       dev = 1;
 516       ++ver;
 517     }
 518     if(*ver)
 519       dev = 2;
 520   } else
 521     dev = 0;
 522   server_version_bytes = (major << 24) + (minor << 16) + (patch << 8) + dev;
 523 }
 524
 525 void logged_in(void) {
 526   /* reset the clients */
 527   disorder_eclient_close(client);
 528   disorder_eclient_close(logclient);
 529   rtp_supported = 0;
 530   event_raise("logged-in", 0);
 531   /* Force the periodic checks */
 532   periodic_slow(0);
 533   periodic_fast(0);
 534   /* Recheck server version */
 535   disorder_eclient_version(client, version_completed, 0);
 536   disorder_eclient_enable_connect(client);
 537   disorder_eclient_enable_connect(logclient);
 538 }
 539
 540 int main(int argc, char **argv) {
 541   int n;
 542   gboolean gtkok;
 543
 544   mem_init();
 545   /* garbage-collect PCRE's memory */
 546   regexp_setup();
 547   if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "error calling setlocale");
 548   gtkok = gtk_init_check(&argc, &argv);
 549   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 550     switch(n) {
 551     case 'h': help();
 552     case 'V': version("disobedience");
 553     case 'c': configfile = optarg; break;
 554     case 'd': debugging = 1; break;
 555     case 't': goesupto = 11; break;
 556     default: disorder_fatal(0, "invalid option");
 557     }
 558   }
 559   if(!gtkok)
 560     disorder_fatal(0, "failed to initialize GTK+");
 561   /* gcrypt initialization */
 562   if(!gcry_check_version(NULL))
 563     disorder_fatal(0, "gcry_check_version failed");
 564   gcry_control(GCRYCTL_INIT_SECMEM, 0);
 565   gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
 566   signal(SIGPIPE, SIG_IGN);
 567   init_styles();
 568   load_settings();
 569   /* create the event loop */
 570   D(("create main loop"));
 571   mainloop = g_main_loop_new(0, 0);
 572   if(config_read(0, NULL)) disorder_fatal(0, "cannot read configuration");
 573   /* create the clients */
 574   if(!(client = gtkclient())
 575      || !(logclient = gtkclient()))
 576     return 1;                           /* already reported an error */
 577   /* periodic operations (e.g. expiring the cache, checking local volume) */
 578   g_timeout_add(600000/*milliseconds*/, periodic_slow, 0);
 579   g_timeout_add(1000/*milliseconds*/, periodic_fast, 0);
 580   make_toplevel_window();
 581   /* reset styles now everything has its name */
 582   gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
 583   gtk_widget_show_all(toplevel);
 584   gtk_widget_hide(playing_mini);
 585   /* issue a NOP every so often */
 586   g_timeout_add_full(G_PRIORITY_LOW,
 587                      2000/*interval, ms*/,
 588                      maybe_send_nop,
 589                      0/*data*/,
 590                      0/*notify*/);
 591   /* Start monitoring the log */
 592   disorder_eclient_log(logclient, &log_callbacks, 0);
 593   /* Initiate all the checks */
 594   periodic_fast(0);
 595   disorder_eclient_version(client, version_completed, 0);
 596   event_register("log-connected", check_rtp_address, 0);
 597   suppress_actions = 0;
 598   playlists_init();
 599   globals_init();
 600   /* If no password is set yet pop up a login box */
 601   if(!config->password)
 602     login_box();
 603   D(("enter main loop"));
 604   g_main_loop_run(mainloop);
 605   return 0;
 606 }
 607
 608 /*
 609 Local Variables:
 610 c-basic-offset:2
 611 comment-column:40
 612 fill-column:79
 613 indent-tabs-mode:nil
 614 End:
 615 */