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 (WINDOW_LEVEL_MATCH(active_win, server, level))
 251                 return active_win;
 252
 253         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 254                 WINDOW_REC *rec = tmp->data;
 255
 256                 if (WINDOW_LEVEL_MATCH(rec, server, level))
 257                         return rec;
 258         }
 259
 260         return NULL;
 261 }
 262
 263 WINDOW_REC *window_find_closest(void *server, const char *name, int level)
 264 {
 265         WINDOW_REC *window,*namewindow=NULL;
 266         WI_ITEM_REC *item;
 267
 268         /* match by name */
 269         item = name == NULL ? NULL :
 270                 window_item_find(server, name);
 271         if (item != NULL) {
 272                 namewindow = window_item_window(item);
 273                 if (namewindow != NULL && ((namewindow->level & level) != 0 ||
 274                     !settings_get_bool("window_check_level_first")))
 275                   return namewindow;
 276         }
 277
 278         /* match by level */
 279         if (level != MSGLEVEL_HILIGHT)
 280                 level &= ~(MSGLEVEL_HILIGHT | MSGLEVEL_NOHILIGHT);
 281         window = window_find_level(server, level);
 282         if (window != NULL) return window;
 283
 284         /* match by level - ignore server */
 285         window = window_find_level(NULL, level);
 286         if (window != NULL) return window;
 287
 288         /* still return item's window if we didnt find anything */
 289         if (namewindow != NULL) return namewindow;
 290
 291         /* fallback to active */
 292         return active_win;
 293 }
 294
 295 WINDOW_REC *window_find_refnum(int refnum)
 296 {
 297         GSList *tmp;
 298
 299         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 300                 WINDOW_REC *rec = tmp->data;
 301
 302                 if (rec->refnum == refnum)
 303                         return rec;
 304         }
 305
 306         return NULL;
 307 }
 308
 309 WINDOW_REC *window_find_name(const char *name)
 310 {
 311         GSList *tmp;
 312
 313         g_return_val_if_fail(name != NULL, NULL);
 314
 315         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 316                 WINDOW_REC *rec = tmp->data;
 317
 318                 if (rec->name != NULL && g_strcasecmp(rec->name, name) == 0)
 319                         return rec;
 320         }
 321
 322         return NULL;
 323 }
 324
 325 WINDOW_REC *window_find_item(SERVER_REC *server, const char *name)
 326 {
 327         WINDOW_REC *rec;
 328         WI_ITEM_REC *item;
 329
 330         g_return_val_if_fail(name != NULL, NULL);
 331
 332         rec = window_find_name(name);
 333         if (rec != NULL) return rec;
 334
 335         item = server == NULL ? NULL :
 336                 window_item_find(server, name);
 337         if (item == NULL && server == NULL) {
 338                 /* not found from the active server - any server? */
 339                 item = window_item_find(NULL, name);
 340         }
 341
 342         if (item == NULL) {
 343                 char *chan;
 344
 345                 /* still nothing? maybe user just left the # in front of
 346                    channel, try again with it.. */
 347                 chan = g_strdup_printf("#%s", name);
 348                 item = server == NULL ? NULL :
 349                         window_item_find(server, chan);
 350                 if (item == NULL) item = window_item_find(NULL, chan);
 351                 g_free(chan);
 352         }
 353
 354         if (item == NULL)
 355                 return 0;
 356
 357         return window_item_window(item);
 358 }
 359
 360 int window_refnum_prev(int refnum, int wrap)
 361 {
 362         GSList *tmp;
 363         int prev, max;
 364
 365         max = prev = -1;
 366         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 367                 WINDOW_REC *rec = tmp->data;
 368
 369                 if (rec->refnum < refnum && (prev == -1 || rec->refnum > prev))
 370                         prev = rec->refnum;
 371                 if (wrap && (max == -1 || rec->refnum > max))
 372                         max = rec->refnum;
 373         }
 374
 375         return prev != -1 ? prev : max;
 376 }
 377
 378 int window_refnum_next(int refnum, int wrap)
 379 {
 380         GSList *tmp;
 381         int min, next;
 382
 383         min = next = -1;
 384         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 385                 WINDOW_REC *rec = tmp->data;
 386
 387                 if (rec->refnum > refnum && (next == -1 || rec->refnum < next))
 388                         next = rec->refnum;
 389                 if (wrap && (min == -1 || rec->refnum < min))
 390                         min = rec->refnum;
 391         }
 392
 393         return next != -1 ? next : min;
 394 }
 395
 396 int windows_refnum_last(void)
 397 {
 398         GSList *tmp;
 399         int max;
 400
 401         max = -1;
 402         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 403                 WINDOW_REC *rec = tmp->data;
 404
 405                 if (rec->refnum > max)
 406                         max = rec->refnum;
 407         }
 408
 409         return max;
 410 }
 411
 412 int window_refnum_cmp(WINDOW_REC *w1, WINDOW_REC *w2)
 413 {
 414         return w1->refnum < w2->refnum ? -1 : 1;
 415 }
 416
 417 GSList *windows_get_sorted(void)
 418 {
 419         GSList *tmp, *sorted;
 420
 421         sorted = NULL;
 422         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 423                 WINDOW_REC *rec = tmp->data;
 424
 425                 sorted = g_slist_insert_sorted(sorted, rec, (GCompareFunc)
 426                                                window_refnum_cmp);
 427         }
 428
 429         return sorted;
 430 }
 431
 432 /* Add a new bind to window - if duplicate is found it's returned */
 433 WINDOW_BIND_REC *window_bind_add(WINDOW_REC *window, const char *servertag,
 434                                  const char *name)
 435 {
 436         WINDOW_BIND_REC *rec;
 437
 438         g_return_val_if_fail(window != NULL, NULL);
 439         g_return_val_if_fail(servertag != NULL, NULL);
 440         g_return_val_if_fail(name != NULL, NULL);
 441
 442         rec = window_bind_find(window, servertag, name);
 443         if (rec != NULL)
 444                 return rec;
 445
 446         rec = g_new0(WINDOW_BIND_REC, 1);
 447         rec->name = g_strdup(name);
 448         rec->servertag = g_strdup(servertag);
 449
 450         window->bound_items = g_slist_append(window->bound_items, rec);
 451         return rec;
 452 }
 453
 454 void window_bind_destroy(WINDOW_REC *window, WINDOW_BIND_REC *rec)
 455 {
 456         g_return_if_fail(window != NULL);
 457         g_return_if_fail(rec != NULL);
 458
 459         window->bound_items = g_slist_remove(window->bound_items, rec);
 460
 461         g_free(rec->servertag);
 462         g_free(rec->name);
 463         g_free(rec);
 464 }
 465
 466 WINDOW_BIND_REC *window_bind_find(WINDOW_REC *window, const char *servertag,
 467                                   const char *name)
 468 {
 469         GSList *tmp;
 470
 471         g_return_val_if_fail(window != NULL, NULL);
 472         g_return_val_if_fail(servertag != NULL, NULL);
 473         g_return_val_if_fail(name != NULL, NULL);
 474
 475         for (tmp = window->bound_items; tmp != NULL; tmp = tmp->next) {
 476                 WINDOW_BIND_REC *rec = tmp->data;
 477
 478                 if (g_strcasecmp(rec->name, name) == 0 &&
 479                     g_strcasecmp(rec->servertag, servertag) == 0)
 480                         return rec;
 481         }
 482
 483         return NULL;
 484 }
 485
 486 void window_bind_remove_unsticky(WINDOW_REC *window)
 487 {
 488         GSList *tmp, *next;
 489
 490         for (tmp = window->bound_items; tmp != NULL; tmp = next) {
 491                 WINDOW_BIND_REC *rec = tmp->data;
 492
 493                 next = tmp->next;
 494                 if (!rec->sticky)
 495                         window_bind_destroy(window, rec);
 496         }
 497 }
 498
 499 static void sig_server_looking(SERVER_REC *server)
 500 {
 501         GSList *tmp;
 502
 503         g_return_if_fail(server != NULL);
 504
 505         /* Try to keep some server assigned to windows..
 506            Also change active window's server if the window is empty */
 507         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 508                 WINDOW_REC *rec = tmp->data;
 509
 510                 if ((rec->servertag == NULL ||
 511                      g_strcasecmp(rec->servertag, server->tag) == 0) &&
 512                     (rec->active_server == NULL ||
 513                      (rec == active_win && rec->items == NULL)))
 514                         window_change_server(rec, server);
 515         }
 516 }
 517
 518 static void sig_server_disconnected(SERVER_REC *server)
 519 {
 520         GSList *tmp;
 521         SERVER_REC *new_server;
 522
 523         g_return_if_fail(server != NULL);
 524
 525         new_server = servers == NULL ? NULL : servers->data;
 526         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 527                 WINDOW_REC *rec = tmp->data;
 528
 529                 if (rec->active_server == server) {
 530                         window_change_server(rec, rec->servertag != NULL ?
 531                                              NULL : new_server);
 532                 }
 533         }
 534 }
 535
 536 static void window_print_daychange(WINDOW_REC *window, struct tm *tm)
 537 {
 538         THEME_REC *theme;
 539         TEXT_DEST_REC dest;
 540         char *format, str[256];
 541
 542         theme = active_win->theme != NULL ? active_win->theme : current_theme;
 543         format_create_dest(&dest, NULL, NULL, MSGLEVEL_NEVER, window);
 544         format = format_get_text_theme(theme, MODULE_NAME, &dest,
 545                                        TXT_DAYCHANGE);
 546         if (strftime(str, sizeof(str), format, tm) <= 0)
 547                 str[0] = '\0';
 548         g_free(format);
 549
 550         printtext_string_window(window, MSGLEVEL_NEVER, str);
 551 }
 552
 553 static void sig_print_text(void)
 554 {
 555         GSList *tmp;
 556         time_t t;
 557         struct tm *tm;
 558
 559         t = time(NULL);
 560         tm = localtime(&t);
 561         if (tm->tm_hour != 0 || tm->tm_min != 0)
 562                 return;
 563
 564         daycheck = 2;
 565         signal_remove("print text", (SIGNAL_FUNC) sig_print_text);
 566
 567         /* day changed, print notice about it to every window */
 568         for (tmp = windows; tmp != NULL; tmp = tmp->next)
 569                 window_print_daychange(tmp->data, tm);
 570 }
 571
 572 static int sig_check_daychange(void)
 573 {
 574         time_t t;
 575         struct tm *tm;
 576
 577         t = time(NULL);
 578         tm = localtime(&t);
 579
 580         if (daycheck == 1 && tm->tm_hour == 0 && tm->tm_min == 0) {
 581                 sig_print_text();
 582                 return TRUE;
 583         }
 584
 585         if (tm->tm_hour != 23 || tm->tm_min != 59) {
 586                 daycheck = 0;
 587                 return TRUE;
 588         }
 589
 590         /* time is 23:59 */
 591         if (daycheck == 0) {
 592                 daycheck = 1;
 593                 signal_add("print text", (SIGNAL_FUNC) sig_print_text);
 594         }
 595         return TRUE;
 596 }
 597
 598 static void read_settings(void)
 599 {
 600         if (daytag != -1) {
 601                 g_source_remove(daytag);
 602                 daytag = -1;
 603         }
 604
 605         if (settings_get_bool("timestamps"))
 606                 daytag = g_timeout_add(30000, (GSourceFunc) sig_check_daychange, NULL);
 607 }
 608
 609 void windows_init(void)
 610 {
 611         active_win = NULL;
 612         daycheck = 0; daytag = -1;
 613         settings_add_bool("lookandfeel", "window_auto_change", FALSE);
 614         settings_add_bool("lookandfeel", "windows_auto_renumber", TRUE);
 615         settings_add_bool("lookandfeel", "window_check_level_first", FALSE);
 616         settings_add_str("lookandfeel", "window_default_level", "NONE");
 617
 618         read_settings();
 619         signal_add("server looking", (SIGNAL_FUNC) sig_server_looking);
 620         signal_add("server disconnected", (SIGNAL_FUNC) sig_server_disconnected);
 621         signal_add("server connect failed", (SIGNAL_FUNC) sig_server_disconnected);
 622         signal_add("setup changed", (SIGNAL_FUNC) read_settings);
 623 }
 624
 625 void windows_deinit(void)
 626 {
 627         if (daytag != -1) g_source_remove(daytag);
 628         if (daycheck == 1) signal_remove("print text", (SIGNAL_FUNC) sig_print_text);
 629
 630         signal_remove("server looking", (SIGNAL_FUNC) sig_server_looking);
 631         signal_remove("server disconnected", (SIGNAL_FUNC) sig_server_disconnected);
 632         signal_remove("server connect failed", (SIGNAL_FUNC) sig_server_disconnected);
 633         signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
 634 }