apps/irssi/src/fe-common/core/fe-windows.c

   1 /*
   2  windows.c : irssi
   3
   4     Copyright (C) 1999-2000 Timo Sirainen
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21 #include "module.h"
  22 #include "module-formats.h"
  23 #include "modules.h"
  24 #include "signals.h"
  25 #include "commands.h"
  26 #include "servers.h"
  27 #include "misc.h"
  28 #include "settings.h"
  29
  30 #include "levels.h"
  31
  32 #include "printtext.h"
  33 #include "fe-windows.h"
  34 #include "window-items.h"
  35
  36 GSList *windows; /* first in the list is the active window,
  37                     next is the last active, etc. */
  38 WINDOW_REC *active_win;
  39
  40 static int daytag;
  41 static int daycheck; /* 0 = don't check, 1 = time is 00:00, check,
  42                         2 = time is 00:00, already checked */
  43
  44 static int window_get_new_refnum(void)
  45 {
  46         WINDOW_REC *win;
  47         GSList *tmp;
  48         int refnum;
  49
  50         refnum = 1;
  51         tmp = windows;
  52         while (tmp != NULL) {
  53                 win = tmp->data;
  54
  55                 if (refnum != win->refnum) {
  56                         tmp = tmp->next;
  57                         continue;
  58                 }
  59
  60                 refnum++;
  61                 tmp = windows;
  62         }
  63
  64         return refnum;
  65 }
  66
  67 WINDOW_REC *window_create(WI_ITEM_REC *item, int automatic)
  68 {
  69         WINDOW_REC *rec;
  70
  71         rec = g_new0(WINDOW_REC, 1);
  72         rec->refnum = window_get_new_refnum();
  73         rec->level = level2bits(settings_get_str("window_default_level"));
  74
  75         windows = g_slist_prepend(windows, rec);
  76         signal_emit("window created", 2, rec, GINT_TO_POINTER(automatic));
  77
  78         if (item != NULL) window_item_add(rec, item, automatic);
  79         if (windows->next == NULL || !automatic || settings_get_bool("window_auto_change")) {
  80                 if (automatic && windows->next != NULL)
  81                         signal_emit("window changed automatic", 1, rec);
  82                 window_set_active(rec);
  83         }
  84         return rec;
  85 }
  86
  87 /* removed_refnum was removed from the windows list, pack the windows so
  88    there won't be any holes. If there is any holes after removed_refnum,
  89    leave the windows behind it alone. */
  90 static void windows_pack(int removed_refnum)
  91 {
  92         WINDOW_REC *window;
  93         int refnum;
  94
  95         for (refnum = removed_refnum+1;; refnum++) {
  96                 window = window_find_refnum(refnum);
  97                 if (window == NULL || window->sticky_refnum)
  98                         break;
  99
 100                 window_set_refnum(window, refnum-1);
 101         }
 102 }
 103
 104 void window_destroy(WINDOW_REC *window)
 105 {
 106         g_return_if_fail(window != NULL);
 107
 108         if (window->destroying) return;
 109         window->destroying = TRUE;
 110         windows = g_slist_remove(windows, window);
 111
 112         if (active_win == window && windows != NULL) {
 113                 active_win = NULL; /* it's corrupted */
 114                 window_set_active(windows->data);
 115         }
 116
 117         while (window->items != NULL)
 118                 window_item_destroy(window->items->data);
 119
 120         if (settings_get_bool("windows_auto_renumber"))
 121                 windows_pack(window->refnum);
 122
 123         signal_emit("window destroyed", 1, window);
 124
 125         while (window->bound_items != NULL)
 126                 window_bind_destroy(window, window->bound_items->data);
 127
 128         g_free_not_null(window->hilight_color);
 129         g_free_not_null(window->servertag);
 130         g_free_not_null(window->theme_name);
 131         g_free_not_null(window->name);
 132         g_free(window);
 133 }
 134
 135 void window_auto_destroy(WINDOW_REC *window)
 136 {
 137         if (settings_get_bool("autoclose_windows") && windows->next != NULL &&
 138             window->items == NULL && window->bound_items == NULL &&
 139             window->level == 0 && !window->immortal)
 140                 window_destroy(window);
 141 }
 142
 143 void window_set_active(WINDOW_REC *window)
 144 {
 145         WINDOW_REC *old_window;
 146
 147         if (window == active_win)
 148                 return;
 149
 150         old_window = active_win;
 151         active_win = window;
 152         if (active_win != NULL) {
 153                 windows = g_slist_remove(windows, active_win);
 154                 windows = g_slist_prepend(windows, active_win);
 155         }
 156
 157         if (active_win != NULL)
 158                 signal_emit("window changed", 2, active_win, old_window);
 159 }
 160
 161 void window_change_server(WINDOW_REC *window, void *server)
 162 {
 163         window->active_server = server;
 164         signal_emit("window server changed", 2, window, server);
 165 }
 166
 167 void window_set_refnum(WINDOW_REC *window, int refnum)
 168 {
 169         GSList *tmp;
 170         int old_refnum;
 171
 172         g_return_if_fail(window != NULL);
 173         g_return_if_fail(refnum >= 1);
 174         if (window->refnum == refnum) return;
 175
 176         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 177                 WINDOW_REC *rec = tmp->data;
 178
 179                 if (rec->refnum == refnum) {
 180                         rec->refnum = window->refnum;
 181                         signal_emit("window refnum changed", 2, rec, GINT_TO_POINTER(refnum));
 182                         break;
 183                 }
 184         }
 185
 186         old_refnum = window->refnum;
 187         window->refnum = refnum;
 188         signal_emit("window refnum changed", 2, window, GINT_TO_POINTER(old_refnum));
 189 }
 190
 191 void window_set_name(WINDOW_REC *window, const char *name)
 192 {
 193         g_free_not_null(window->name);
 194         window->name = g_strdup(name);
 195
 196         signal_emit("window name changed", 1, window);
 197 }
 198
 199 void window_set_history(WINDOW_REC *window, const char *name)
 200 {
 201         char *oldname;
 202         oldname = window->history_name;
 203
 204         if (name == NULL || *name == '\0')
 205                 window->history_name = NULL;
 206         else
 207                 window->history_name = g_strdup(name);
 208
 209         signal_emit("window history changed", 1, window, oldname);
 210
 211         g_free_not_null(oldname);
 212 }
 213
 214 void window_set_level(WINDOW_REC *window, int level)
 215 {
 216         g_return_if_fail(window != NULL);
 217
 218         window->level = level;
 219         signal_emit("window level changed", 1, window);
 220 }
 221
 222 void window_set_immortal(WINDOW_REC *window, int immortal)
 223 {
 224         g_return_if_fail(window != NULL);
 225
 226         window->immortal = immortal;
 227         signal_emit("window immortal changed", 1, window);
 228 }
 229
 230 /* return active item's name, or if none is active, window's name */
 231 char *window_get_active_name(WINDOW_REC *window)
 232 {
 233         g_return_val_if_fail(window != NULL, NULL);
 234
 235         if (window->active != NULL)
 236                 return window->active->name;
 237
 238         return window->name;
 239 }
 240
 241 #define WINDOW_LEVEL_MATCH(window, server, level) \
 242         (((window)->level & level) && \
 243          (server == NULL || (window)->active_server == server))
 244
 245 WINDOW_REC *window_find_level(void *server, int level)
 246 {
 247         GSList *tmp;
 248
 249         /* prefer active window if possible */
 250         if (active_win != NULL &&
 251             WINDOW_LEVEL_MATCH(active_win, server, level))
 252                 return active_win;
 253
 254         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 255                 WINDOW_REC *rec = tmp->data;
 256
 257                 if (WINDOW_LEVEL_MATCH(rec, server, level))
 258                         return rec;
 259         }
 260
 261         return NULL;
 262 }
 263
 264 WINDOW_REC *window_find_closest(void *server, const char *name, int level)
 265 {
 266         WINDOW_REC *window,*namewindow=NULL;
 267         WI_ITEM_REC *item;
 268
 269         /* match by name */
 270         item = name == NULL ? NULL :
 271                 window_item_find(server, name);
 272         if (item != NULL) {
 273                 namewindow = window_item_window(item);
 274                 if (namewindow != NULL && ((namewindow->level & level) != 0 ||
 275                     !settings_get_bool("window_check_level_first")))
 276                   return namewindow;
 277         }
 278
 279         /* match by level */
 280         if (level != MSGLEVEL_HILIGHT)
 281                 level &= ~(MSGLEVEL_HILIGHT | MSGLEVEL_NOHILIGHT);
 282         window = window_find_level(server, level);
 283         if (window != NULL) return window;
 284
 285         /* match by level - ignore server */
 286         window = window_find_level(NULL, level);
 287         if (window != NULL) return window;
 288
 289         /* still return item's window if we didnt find anything */
 290         if (namewindow != NULL) return namewindow;
 291
 292         /* fallback to active */
 293         return active_win;
 294 }
 295
 296 WINDOW_REC *window_find_refnum(int refnum)
 297 {
 298         GSList *tmp;
 299
 300         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 301                 WINDOW_REC *rec = tmp->data;
 302
 303                 if (rec->refnum == refnum)
 304                         return rec;
 305         }
 306
 307         return NULL;
 308 }
 309
 310 WINDOW_REC *window_find_name(const char *name)
 311 {
 312         GSList *tmp;
 313
 314         g_return_val_if_fail(name != NULL, NULL);
 315
 316         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 317                 WINDOW_REC *rec = tmp->data;
 318
 319                 if (rec->name != NULL && g_strcasecmp(rec->name, name) == 0)
 320                         return rec;
 321         }
 322
 323         return NULL;
 324 }
 325
 326 WINDOW_REC *window_find_item(SERVER_REC *server, const char *name)
 327 {
 328         WINDOW_REC *rec;
 329         WI_ITEM_REC *item;
 330
 331         g_return_val_if_fail(name != NULL, NULL);
 332
 333         rec = window_find_name(name);
 334         if (rec != NULL) return rec;
 335
 336         item = server == NULL ? NULL :
 337                 window_item_find(server, name);
 338         if (item == NULL && server == NULL) {
 339                 /* not found from the active server - any server? */
 340                 item = window_item_find(NULL, name);
 341         }
 342
 343         if (item == NULL) {
 344                 char *chan;
 345
 346                 /* still nothing? maybe user just left the # in front of
 347                    channel, try again with it.. */
 348                 chan = g_strdup_printf("#%s", name);
 349                 item = server == NULL ? NULL :
 350                         window_item_find(server, chan);
 351                 if (item == NULL) item = window_item_find(NULL, chan);
 352                 g_free(chan);
 353         }
 354
 355         if (item == NULL)
 356                 return 0;
 357
 358         return window_item_window(item);
 359 }
 360
 361 int window_refnum_prev(int refnum, int wrap)
 362 {
 363         GSList *tmp;
 364         int prev, max;
 365
 366         max = prev = -1;
 367         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 368                 WINDOW_REC *rec = tmp->data;
 369
 370                 if (rec->refnum < refnum && (prev == -1 || rec->refnum > prev))
 371                         prev = rec->refnum;
 372                 if (wrap && (max == -1 || rec->refnum > max))
 373                         max = rec->refnum;
 374         }
 375
 376         return prev != -1 ? prev : max;
 377 }
 378
 379 int window_refnum_next(int refnum, int wrap)
 380 {
 381         GSList *tmp;
 382         int min, next;
 383
 384         min = next = -1;
 385         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 386                 WINDOW_REC *rec = tmp->data;
 387
 388                 if (rec->refnum > refnum && (next == -1 || rec->refnum < next))
 389                         next = rec->refnum;
 390                 if (wrap && (min == -1 || rec->refnum < min))
 391                         min = rec->refnum;
 392         }
 393
 394         return next != -1 ? next : min;
 395 }
 396
 397 int windows_refnum_last(void)
 398 {
 399         GSList *tmp;
 400         int max;
 401
 402         max = -1;
 403         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 404                 WINDOW_REC *rec = tmp->data;
 405
 406                 if (rec->refnum > max)
 407                         max = rec->refnum;
 408         }
 409
 410         return max;
 411 }
 412
 413 int window_refnum_cmp(WINDOW_REC *w1, WINDOW_REC *w2)
 414 {
 415         return w1->refnum < w2->refnum ? -1 : 1;
 416 }
 417
 418 GSList *windows_get_sorted(void)
 419 {
 420         GSList *tmp, *sorted;
 421
 422         sorted = NULL;
 423         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 424                 WINDOW_REC *rec = tmp->data;
 425
 426                 sorted = g_slist_insert_sorted(sorted, rec, (GCompareFunc)
 427                                                window_refnum_cmp);
 428         }
 429
 430         return sorted;
 431 }
 432
 433 /* Add a new bind to window - if duplicate is found it's returned */
 434 WINDOW_BIND_REC *window_bind_add(WINDOW_REC *window, const char *servertag,
 435                                  const char *name)
 436 {
 437         WINDOW_BIND_REC *rec;
 438
 439         g_return_val_if_fail(window != NULL, NULL);
 440         g_return_val_if_fail(servertag != NULL, NULL);
 441         g_return_val_if_fail(name != NULL, NULL);
 442
 443         rec = window_bind_find(window, servertag, name);
 444         if (rec != NULL)
 445                 return rec;
 446
 447         rec = g_new0(WINDOW_BIND_REC, 1);
 448         rec->name = g_strdup(name);
 449         rec->servertag = g_strdup(servertag);
 450
 451         window->bound_items = g_slist_append(window->bound_items, rec);
 452         return rec;
 453 }
 454
 455 void window_bind_destroy(WINDOW_REC *window, WINDOW_BIND_REC *rec)
 456 {
 457         g_return_if_fail(window != NULL);
 458         g_return_if_fail(rec != NULL);
 459
 460         window->bound_items = g_slist_remove(window->bound_items, rec);
 461
 462         g_free(rec->servertag);
 463         g_free(rec->name);
 464         g_free(rec);
 465 }
 466
 467 WINDOW_BIND_REC *window_bind_find(WINDOW_REC *window, const char *servertag,
 468                                   const char *name)
 469 {
 470         GSList *tmp;
 471
 472         g_return_val_if_fail(window != NULL, NULL);
 473         g_return_val_if_fail(servertag != NULL, NULL);
 474         g_return_val_if_fail(name != NULL, NULL);
 475
 476         for (tmp = window->bound_items; tmp != NULL; tmp = tmp->next) {
 477                 WINDOW_BIND_REC *rec = tmp->data;
 478
 479                 if (g_strcasecmp(rec->name, name) == 0 &&
 480                     g_strcasecmp(rec->servertag, servertag) == 0)
 481                         return rec;
 482         }
 483
 484         return NULL;
 485 }
 486
 487 void window_bind_remove_unsticky(WINDOW_REC *window)
 488 {
 489         GSList *tmp, *next;
 490
 491         for (tmp = window->bound_items; tmp != NULL; tmp = next) {
 492                 WINDOW_BIND_REC *rec = tmp->data;
 493
 494                 next = tmp->next;
 495                 if (!rec->sticky)
 496                         window_bind_destroy(window, rec);
 497         }
 498 }
 499
 500 static void sig_server_looking(SERVER_REC *server)
 501 {
 502         GSList *tmp;
 503
 504         g_return_if_fail(server != NULL);
 505
 506         /* Try to keep some server assigned to windows..
 507            Also change active window's server if the window is empty */
 508         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 509                 WINDOW_REC *rec = tmp->data;
 510
 511                 if ((rec->servertag == NULL ||
 512                      g_strcasecmp(rec->servertag, server->tag) == 0) &&
 513                     (rec->active_server == NULL ||
 514                      (rec == active_win && rec->items == NULL)))
 515                         window_change_server(rec, server);
 516         }
 517 }
 518
 519 static void sig_server_disconnected(SERVER_REC *server)
 520 {
 521         GSList *tmp;
 522         SERVER_REC *new_server;
 523
 524         g_return_if_fail(server != NULL);
 525
 526         new_server = servers == NULL ? NULL : servers->data;
 527         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 528                 WINDOW_REC *rec = tmp->data;
 529
 530                 if (rec->active_server == server) {
 531                         window_change_server(rec, rec->servertag != NULL ?
 532                                              NULL : new_server);
 533                 }
 534         }
 535 }
 536
 537 static void window_print_daychange(WINDOW_REC *window, struct tm *tm)
 538 {
 539         THEME_REC *theme;
 540         TEXT_DEST_REC dest;
 541         char *format, str[256];
 542
 543         theme = active_win->theme != NULL ? active_win->theme : current_theme;
 544         format_create_dest(&dest, NULL, NULL, MSGLEVEL_NEVER, window);
 545         format = format_get_text_theme(theme, MODULE_NAME, &dest,
 546                                        TXT_DAYCHANGE);
 547         if (strftime(str, sizeof(str), format, tm) <= 0)
 548                 str[0] = '\0';
 549         g_free(format);
 550
 551         printtext_string_window(window, MSGLEVEL_NEVER, str);
 552 }
 553
 554 static void sig_print_text(void)
 555 {
 556         GSList *tmp;
 557         time_t t;
 558         struct tm *tm;
 559
 560         t = time(NULL);
 561         tm = localtime(&t);
 562         if (tm->tm_hour != 0 || tm->tm_min != 0)
 563                 return;
 564
 565         daycheck = 2;
 566         signal_remove("print text", (SIGNAL_FUNC) sig_print_text);
 567
 568         /* day changed, print notice about it to every window */
 569         for (tmp = windows; tmp != NULL; tmp = tmp->next)
 570                 window_print_daychange(tmp->data, tm);
 571 }
 572
 573 static int sig_check_daychange(void)
 574 {
 575         time_t t;
 576         struct tm *tm;
 577
 578         t = time(NULL);
 579         tm = localtime(&t);
 580
 581         if (daycheck == 1 && tm->tm_hour == 0 && tm->tm_min == 0) {
 582                 sig_print_text();
 583                 return TRUE;
 584         }
 585
 586         if (tm->tm_hour != 23 || tm->tm_min != 59) {
 587                 daycheck = 0;
 588                 return TRUE;
 589         }
 590
 591         /* time is 23:59 */
 592         if (daycheck == 0) {
 593                 daycheck = 1;
 594                 signal_add("print text", (SIGNAL_FUNC) sig_print_text);
 595         }
 596         return TRUE;
 597 }
 598
 599 static void read_settings(void)
 600 {
 601         if (daytag != -1) {
 602                 g_source_remove(daytag);
 603                 daytag = -1;
 604         }
 605
 606         if (settings_get_bool("timestamps"))
 607                 daytag = g_timeout_add(30000, (GSourceFunc) sig_check_daychange, NULL);
 608 }
 609
 610 void windows_init(void)
 611 {
 612         active_win = NULL;
 613         daycheck = 0; daytag = -1;
 614         settings_add_bool("lookandfeel", "window_auto_change", FALSE);
 615         settings_add_bool("lookandfeel", "windows_auto_renumber", TRUE);
 616         settings_add_bool("lookandfeel", "window_check_level_first", FALSE);
 617         settings_add_str("lookandfeel", "window_default_level", "NONE");
 618
 619         read_settings();
 620         signal_add("server looking", (SIGNAL_FUNC) sig_server_looking);
 621         signal_add("server disconnected", (SIGNAL_FUNC) sig_server_disconnected);
 622         signal_add("server connect failed", (SIGNAL_FUNC) sig_server_disconnected);
 623         signal_add("setup changed", (SIGNAL_FUNC) read_settings);
 624 }
 625
 626 void windows_deinit(void)
 627 {
 628         if (daytag != -1) g_source_remove(daytag);
 629         if (daycheck == 1) signal_remove("print text", (SIGNAL_FUNC) sig_print_text);
 630
 631         signal_remove("server looking", (SIGNAL_FUNC) sig_server_looking);
 632         signal_remove("server disconnected", (SIGNAL_FUNC) sig_server_disconnected);
 633         signal_remove("server connect failed", (SIGNAL_FUNC) sig_server_disconnected);
 634         signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
 635 }