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(const char *event,
 100                               void *eventdata,
 101                               void *callbackdata);
 102
 103 /* Window creation --------------------------------------------------------- */
 104
 105 /* Note that all the client operations kicked off from here will only complete
 106  * after we've entered the event loop. */
 107
 108 /** @brief Called when main window is deleted
 109  *
 110  * Terminates the program.
 111  */
 112 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 113                              GdkEvent attribute((unused)) *event,
 114                              gpointer attribute((unused)) data) {
 115   D(("delete_event"));
 116   exit(0);                              /* die immediately */
 117 }
 118
 119 /** @brief Called when the current tab is switched
 120  *
 121  * Updates the menu settings to correspond to the new page.
 122  */
 123 static void tab_switched(GtkNotebook *notebook,
 124                          GtkNotebookPage attribute((unused)) *page,
 125                          guint page_num,
 126                          gpointer attribute((unused)) user_data) {
 127   GtkWidget *const tab = gtk_notebook_get_nth_page(notebook, page_num);
 128   const struct tabtype *const t = g_object_get_data(G_OBJECT(tab), "type");
 129   assert(t != 0);
 130   if(t->selected)
 131     t->selected();
 132 }
 133
 134 /** @brief Create the report box */
 135 static GtkWidget *report_box(void) {
 136   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 137
 138   report_label = gtk_label_new("");
 139   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 140   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 141   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 142   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 143   return vbox;
 144 }
 145
 146 /** @brief Create and populate the main tab group */
 147 static GtkWidget *notebook(void) {
 148   tabs = gtk_notebook_new();
 149   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 150    * produces not too dreadful appearance */
 151   gtk_widget_set_style(tabs, tool_style);
 152   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 153   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue_widget(),
 154                            gtk_label_new("Queue"));
 155   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 156                            gtk_label_new("Recent"));
 157   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 158                            gtk_label_new("Choose"));
 159   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 160                            gtk_label_new("Added"));
 161   return tabs;
 162 }
 163
 164 /** @brief Create and populate the main window */
 165 static void make_toplevel_window(void) {
 166   GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
 167   GtkWidget *const rb = report_box();
 168
 169   D(("top_window"));
 170   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 171   /* default size is too small */
 172   gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
 173   /* terminate on close */
 174   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 175                    G_CALLBACK(delete_event), NULL);
 176   /* lay out the window */
 177   gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
 178   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 179   /* lay out the vbox */
 180   gtk_box_pack_start(GTK_BOX(vbox),
 181                      menubar(toplevel),
 182                      FALSE,             /* expand */
 183                      FALSE,             /* fill */
 184                      0);
 185   gtk_box_pack_start(GTK_BOX(vbox),
 186                      control_widget(),
 187                      FALSE,             /* expand */
 188                      FALSE,             /* fill */
 189                      0);
 190   gtk_container_add(GTK_CONTAINER(vbox), notebook());
 191   gtk_box_pack_end(GTK_BOX(vbox),
 192                    rb,
 193                    FALSE,             /* expand */
 194                    FALSE,             /* fill */
 195                    0);
 196   gtk_widget_set_style(toplevel, tool_style);
 197 }
 198
 199 static void userinfo_rights_completed(void attribute((unused)) *v,
 200                                       const char *err,
 201                                       const char *value) {
 202   rights_type r;
 203
 204   if(err) {
 205     popup_protocol_error(0, err);
 206     r = 0;
 207   } else {
 208     if(parse_rights(value, &r, 0))
 209       r = 0;
 210   }
 211   /* If rights have changed, signal everything that cares */
 212   if(r != last_rights) {
 213     last_rights = r;
 214     ++suppress_actions;
 215     event_raise("rights-changed", 0);
 216     --suppress_actions;
 217   }
 218   rights_lookup_in_flight = 0;
 219 }
 220
 221 /** @brief Called occasionally */
 222 static gboolean periodic_slow(gpointer attribute((unused)) data) {
 223   D(("periodic_slow"));
 224   /* Expire cached data */
 225   cache_expire();
 226   /* Update everything to be sure that the connection to the server hasn't
 227    * mysteriously gone stale on us. */
 228   all_update();
 229   /* Recheck RTP status too */
 230   check_rtp_address(0, 0, 0);
 231   return TRUE;                          /* don't remove me */
 232 }
 233
 234 /** @brief Called frequently */
 235 static gboolean periodic_fast(gpointer attribute((unused)) data) {
 236 #if 0                                   /* debugging hack */
 237   static struct timeval last;
 238   struct timeval now;
 239   double delta;
 240
 241   xgettimeofday(&now, 0);
 242   if(last.tv_sec) {
 243     delta = (now.tv_sec + now.tv_sec / 1.0E6)
 244       - (last.tv_sec + last.tv_sec / 1.0E6);
 245     if(delta >= 1.0625)
 246       fprintf(stderr, "%f: %fs between 1s heartbeats\n",
 247               now.tv_sec + now.tv_sec / 1.0E6,
 248               delta);
 249   }
 250   last = now;
 251 #endif
 252   if(rtp_supported && mixer_supported(DEFAULT_BACKEND)) {
 253     int nl, nr;
 254     if(!mixer_control(DEFAULT_BACKEND, &nl, &nr, 0)
 255        && (nl != volume_l || nr != volume_r)) {
 256       volume_l = nl;
 257       volume_r = nr;
 258       event_raise("volume-changed", 0);
 259     }
 260   }
 261   /* Periodically check what our rights are */
 262   if(!rights_lookup_in_flight) {
 263     rights_lookup_in_flight = 1;
 264     disorder_eclient_userinfo(client,
 265                               userinfo_rights_completed,
 266                               config->username, "rights",
 267                               0);
 268   }
 269   return TRUE;
 270 }
 271
 272 /** @brief Called when a NOP completes */
 273 static void nop_completed(void attribute((unused)) *v,
 274                           const char attribute((unused)) *err) {
 275   /* TODO report the error somewhere */
 276   nop_in_flight = 0;
 277 }
 278
 279 /** @brief Called from time to time to arrange for a NOP to be sent
 280  *
 281  * At most one NOP remains in flight at any moment.  If the client is not
 282  * currently connected then no NOP is sent.
 283  */
 284 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 285   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 286     nop_in_flight = 1;
 287     disorder_eclient_nop(client, nop_completed, 0);
 288   }
 289   if(rtp_supported) {
 290     const int rtp_was_running = rtp_is_running;
 291     rtp_is_running = rtp_running();
 292     if(rtp_was_running != rtp_is_running)
 293       event_raise("rtp-changed", 0);
 294   }
 295   return TRUE;                          /* keep call me please */
 296 }
 297
 298 /** @brief Called when a rtp-address command succeeds */
 299 static void got_rtp_address(void attribute((unused)) *v,
 300                             const char *err,
 301                             int attribute((unused)) nvec,
 302                             char attribute((unused)) **vec) {
 303   const int rtp_was_supported = rtp_supported;
 304   const int rtp_was_running = rtp_is_running;
 305
 306   ++suppress_actions;
 307   rtp_address_in_flight = 0;
 308   if(err) {
 309     /* An error just means that we're not using network play */
 310     rtp_supported = 0;
 311     rtp_is_running = 0;
 312   } else {
 313     rtp_supported = 1;
 314     rtp_is_running = rtp_running();
 315   }
 316   /*fprintf(stderr, "rtp supported->%d, running->%d\n",
 317           rtp_supported, rtp_is_running);*/
 318   if(rtp_supported != rtp_was_supported
 319      || rtp_is_running != rtp_was_running)
 320     event_raise("rtp-changed", 0);
 321   --suppress_actions;
 322 }
 323
 324 /** @brief Called to check whether RTP play is available */
 325 static void check_rtp_address(const char attribute((unused)) *event,
 326                               void attribute((unused)) *eventdata,
 327                               void attribute((unused)) *callbackdata) {
 328   if(!rtp_address_in_flight) {
 329     //fprintf(stderr, "checking rtp\n");
 330     disorder_eclient_rtp_address(client, got_rtp_address, NULL);
 331   }
 332 }
 333
 334 /* main -------------------------------------------------------------------- */
 335
 336 static const struct option options[] = {
 337   { "help", no_argument, 0, 'h' },
 338   { "version", no_argument, 0, 'V' },
 339   { "config", required_argument, 0, 'c' },
 340   { "tufnel", no_argument, 0, 't' },
 341   { "debug", no_argument, 0, 'd' },
 342   { 0, 0, 0, 0 }
 343 };
 344
 345 /* display usage message and terminate */
 346 static void help(void) {
 347   xprintf("Disobedience - GUI client for DisOrder\n"
 348           "\n"
 349           "Usage:\n"
 350           "  disobedience [OPTIONS]\n"
 351           "Options:\n"
 352           "  --help, -h              Display usage message\n"
 353           "  --version, -V           Display version number\n"
 354           "  --config PATH, -c PATH  Set configuration file\n"
 355           "  --debug, -d             Turn on debugging\n"
 356           "\n"
 357           "Also GTK+ options will work.\n");
 358   xfclose(stdout);
 359   exit(0);
 360 }
 361
 362 void logged_in(void) {
 363   /* reset the clients */
 364   disorder_eclient_close(client);
 365   disorder_eclient_close(logclient);
 366   rtp_supported = 0;
 367   event_raise("logged-in", 0);
 368   /* Force the periodic checks */
 369   periodic_slow(0);
 370   periodic_fast(0);
 371 }
 372
 373 int main(int argc, char **argv) {
 374   int n;
 375   gboolean gtkok;
 376
 377   mem_init();
 378   /* garbage-collect PCRE's memory */
 379   pcre_malloc = xmalloc;
 380   pcre_free = xfree;
 381   if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
 382   gtkok = gtk_init_check(&argc, &argv);
 383   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 384     switch(n) {
 385     case 'h': help();
 386     case 'V': version("disobedience");
 387     case 'c': configfile = optarg; break;
 388     case 'd': debugging = 1; break;
 389     case 't': goesupto = 11; break;
 390     default: fatal(0, "invalid option");
 391     }
 392   }
 393   if(!gtkok)
 394     fatal(0, "failed to initialize GTK+");
 395   signal(SIGPIPE, SIG_IGN);
 396   init_styles();
 397   load_settings();
 398   /* create the event loop */
 399   D(("create main loop"));
 400   mainloop = g_main_loop_new(0, 0);
 401   if(config_read(0)) fatal(0, "cannot read configuration");
 402   /* create the clients */
 403   if(!(client = gtkclient())
 404      || !(logclient = gtkclient()))
 405     return 1;                           /* already reported an error */
 406   /* periodic operations (e.g. expiring the cache, checking local volume) */
 407   g_timeout_add(600000/*milliseconds*/, periodic_slow, 0);
 408   g_timeout_add(1000/*milliseconds*/, periodic_fast, 0);
 409   /* global tooltips */
 410   tips = gtk_tooltips_new();
 411   make_toplevel_window();
 412   /* reset styles now everything has its name */
 413   gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
 414   gtk_widget_show_all(toplevel);
 415   /* issue a NOP every so often */
 416   g_timeout_add_full(G_PRIORITY_LOW,
 417                      2000/*interval, ms*/,
 418                      maybe_send_nop,
 419                      0/*data*/,
 420                      0/*notify*/);
 421   /* Start monitoring the log */
 422   disorder_eclient_log(logclient, &log_callbacks, 0);
 423   /* Initiate all the checks */
 424   periodic_fast(0);
 425   event_register("log-connected", check_rtp_address, 0);
 426   suppress_actions = 0;
 427   /* If no password is set yet pop up a login box */
 428   if(!config->password)
 429     login_box();
 430   D(("enter main loop"));
 431   g_main_loop_run(mainloop);
 432   return 0;
 433 }
 434
 435 /*
 436 Local Variables:
 437 c-basic-offset:2
 438 comment-column:40
 439 fill-column:79
 440 indent-tabs-mode:nil
 441 End:
 442 */