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
  74         windows = g_slist_prepend(windows, rec);
  75         signal_emit("window created", 2, rec, GINT_TO_POINTER(automatic));
  76
  77         if (item != NULL) window_item_add(rec, item, automatic);
  78         if (windows->next == NULL || !automatic || settings_get_bool("window_auto_change")) {
  79                 if (automatic && windows->next != NULL)
  80                         signal_emit("window changed automatic", 1, rec);
  81                 window_set_active(rec);
  82         }
  83         return rec;
  84 }
  85
  86 /* removed_refnum was removed from the windows list, pack the windows so
  87    there won't be any holes. If there is any holes after removed_refnum,
  88    leave the windows behind it alone. */
  89 static void windows_pack(int removed_refnum)
  90 {
  91         WINDOW_REC *window;
  92         int refnum;
  93
  94         for (refnum = removed_refnum+1;; refnum++) {
  95                 window = window_find_refnum(refnum);
  96                 if (window == NULL || window->sticky_refnum)
  97                         break;
  98
  99                 window_set_refnum(window, refnum-1);
 100         }
 101 }
 102
 103 void window_destroy(WINDOW_REC *window)
 104 {
 105         g_return_if_fail(window != NULL);
 106
 107         if (window->destroying) return;
 108         window->destroying = TRUE;
 109         windows = g_slist_remove(windows, window);
 110
 111         if (active_win == window && windows != NULL) {
 112                 active_win = NULL; /* it's corrupted */
 113                 window_set_active(windows->data);
 114         }
 115
 116         while (window->items != NULL)
 117                 window_item_destroy(window->items->data);
 118
 119         if (settings_get_bool("windows_auto_renumber"))
 120                 windows_pack(window->refnum);
 121
 122         signal_emit("window destroyed", 1, window);
 123
 124         while (window->bound_items != NULL)
 125                 window_bind_destroy(window, window->bound_items->data);
 126
 127         g_free_not_null(window->hilight_color);
 128         g_free_not_null(window->servertag);
 129         g_free_not_null(window->theme_name);
 130         g_free_not_null(window->name);
 131         g_free(window);
 132 }
 133
 134 void window_auto_destroy(WINDOW_REC *window)
 135 {
 136         if (settings_get_bool("autoclose_windows") && windows->next != NULL &&
 137             window->items == NULL && window->bound_items == NULL &&
 138             window->level == 0)
 139                 window_destroy(window);
 140 }
 141
 142 void window_set_active(WINDOW_REC *window)
 143 {
 144         WINDOW_REC *old_window;
 145
 146         if (window == active_win)
 147                 return;
 148
 149         old_window = active_win;
 150         active_win = window;
 151         if (active_win != NULL) {
 152                 windows = g_slist_remove(windows, active_win);
 153                 windows = g_slist_prepend(windows, active_win);
 154         }
 155
 156         if (active_win != NULL)
 157                 signal_emit("window changed", 2, active_win, old_window);
 158 }
 159
 160 void window_change_server(WINDOW_REC *window, void *server)
 161 {
 162         window->active_server = server;
 163         signal_emit("window server changed", 2, window, server);
 164 }
 165
 166 void window_set_refnum(WINDOW_REC *window, int refnum)
 167 {
 168         GSList *tmp;
 169         int old_refnum;
 170
 171         g_return_if_fail(window != NULL);
 172         g_return_if_fail(refnum >= 1);
 173         if (window->refnum == refnum) return;
 174
 175         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 176                 WINDOW_REC *rec = tmp->data;
 177
 178                 if (rec->refnum == refnum) {
 179                         rec->refnum = window->refnum;
 180                         signal_emit("window refnum changed", 2, rec, GINT_TO_POINTER(refnum));
 181                         break;
 182                 }
 183         }
 184
 185         old_refnum = window->refnum;
 186         window->refnum = refnum;
 187         signal_emit("window refnum changed", 2, window, GINT_TO_POINTER(old_refnum));
 188 }
 189
 190 void window_set_name(WINDOW_REC *window, const char *name)
 191 {
 192         g_free_not_null(window->name);
 193         window->name = g_strdup(name);
 194
 195         signal_emit("window name changed", 1, window);
 196 }
 197
 198 void window_set_history(WINDOW_REC *window, const char *name)
 199 {
 200         char *oldname;
 201         oldname = window->history_name;
 202
 203         if (name == NULL || *name == '\0')
 204                 window->history_name = NULL;
 205         else
 206                 window->history_name = g_strdup(name);
 207
 208         signal_emit("window history changed", 1, window, oldname);
 209
 210         g_free_not_null(oldname);
 211 }
 212
 213 void window_set_level(WINDOW_REC *window, int level)
 214 {
 215         g_return_if_fail(window != NULL);
 216
 217         window->level = level;
 218         signal_emit("window level changed", 1, window);
 219 }
 220
 221 /* return active item's name, or if none is active, window's name */
 222 char *window_get_active_name(WINDOW_REC *window)
 223 {
 224         g_return_val_if_fail(window != NULL, NULL);
 225
 226         if (window->active != NULL)
 227                 return window->active->name;
 228
 229         return window->name;
 230 }
 231
 232 WINDOW_REC *window_find_level(void *server, int level)
 233 {
 234         WINDOW_REC *match;
 235         GSList *tmp;
 236
 237         match = NULL;
 238         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 239                 WINDOW_REC *rec = tmp->data;
 240
 241                 if ((server == NULL || rec->active_server == server) &&
 242                     (rec->level & level)) {
 243                         if (server == NULL || rec->active_server == server)
 244                                 return rec;
 245                         match = rec;
 246                 }
 247         }
 248
 249         return match;
 250 }
 251
 252 WINDOW_REC *window_find_closest(void *server, const char *name, int level)
 253 {
 254         WINDOW_REC *window;
 255         WI_ITEM_REC *item;
 256
 257         /* match by name */
 258         item = name == NULL ? NULL :
 259                 window_item_find(server, name);
 260         if (item != NULL)
 261                 return window_item_window(item);
 262
 263         /* match by level */
 264         if (level != MSGLEVEL_HILIGHT)
 265                 level &= ~(MSGLEVEL_HILIGHT | MSGLEVEL_NOHILIGHT);
 266         window = window_find_level(server, level);
 267         if (window != NULL) return window;
 268
 269         /* match by level - ignore server */
 270         window = window_find_level(NULL, level);
 271         if (window != NULL) return window;
 272
 273         /* fallback to active */
 274         return active_win;
 275 }
 276
 277 WINDOW_REC *window_find_refnum(int refnum)
 278 {
 279         GSList *tmp;
 280
 281         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 282                 WINDOW_REC *rec = tmp->data;
 283
 284                 if (rec->refnum == refnum)
 285                         return rec;
 286         }
 287
 288         return NULL;
 289 }
 290
 291 WINDOW_REC *window_find_name(const char *name)
 292 {
 293         GSList *tmp;
 294
 295         g_return_val_if_fail(name != NULL, NULL);
 296
 297         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 298                 WINDOW_REC *rec = tmp->data;
 299
 300                 if (rec->name != NULL && g_strcasecmp(rec->name, name) == 0)
 301                         return rec;
 302         }
 303
 304         return NULL;
 305 }
 306
 307 WINDOW_REC *window_find_item(SERVER_REC *server, const char *name)
 308 {
 309         WINDOW_REC *rec;
 310         WI_ITEM_REC *item;
 311
 312         g_return_val_if_fail(name != NULL, NULL);
 313
 314         rec = window_find_name(name);
 315         if (rec != NULL) return rec;
 316
 317         item = server == NULL ? NULL :
 318                 window_item_find(server, name);
 319         if (item == NULL && server == NULL) {
 320                 /* not found from the active server - any server? */
 321                 item = window_item_find(NULL, name);
 322         }
 323
 324         if (item == NULL) {
 325                 char *chan;
 326
 327                 /* still nothing? maybe user just left the # in front of
 328                    channel, try again with it.. */
 329                 chan = g_strdup_printf("#%s", name);
 330                 item = server == NULL ? NULL :
 331                         window_item_find(server, chan);
 332                 if (item == NULL) item = window_item_find(NULL, chan);
 333                 g_free(chan);
 334         }
 335
 336         if (item == NULL)
 337                 return 0;
 338
 339         return window_item_window(item);
 340 }
 341
 342 int window_refnum_prev(int refnum, int wrap)
 343 {
 344         GSList *tmp;
 345         int prev, max;
 346
 347         max = prev = -1;
 348         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 349                 WINDOW_REC *rec = tmp->data;
 350
 351                 if (rec->refnum < refnum && (prev == -1 || rec->refnum > prev))
 352                         prev = rec->refnum;
 353                 if (wrap && (max == -1 || rec->refnum > max))
 354                         max = rec->refnum;
 355         }
 356
 357         return prev != -1 ? prev : max;
 358 }
 359
 360 int window_refnum_next(int refnum, int wrap)
 361 {
 362         GSList *tmp;
 363         int min, next;
 364
 365         min = next = -1;
 366         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 367                 WINDOW_REC *rec = tmp->data;
 368
 369                 if (rec->refnum > refnum && (next == -1 || rec->refnum < next))
 370                         next = rec->refnum;
 371                 if (wrap && (min == -1 || rec->refnum < min))
 372                         min = rec->refnum;
 373         }
 374
 375         return next != -1 ? next : min;
 376 }
 377
 378 int windows_refnum_last(void)
 379 {
 380         GSList *tmp;
 381         int max;
 382
 383         max = -1;
 384         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 385                 WINDOW_REC *rec = tmp->data;
 386
 387                 if (rec->refnum > max)
 388                         max = rec->refnum;
 389         }
 390
 391         return max;
 392 }
 393
 394 int window_refnum_cmp(WINDOW_REC *w1, WINDOW_REC *w2)
 395 {
 396         return w1->refnum < w2->refnum ? -1 : 1;
 397 }
 398
 399 GSList *windows_get_sorted(void)
 400 {
 401         GSList *tmp, *sorted;
 402
 403         sorted = NULL;
 404         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 405                 WINDOW_REC *rec = tmp->data;
 406
 407                 sorted = g_slist_insert_sorted(sorted, rec, (GCompareFunc)
 408                                                window_refnum_cmp);
 409         }
 410
 411         return sorted;
 412 }
 413
 414 /* Add a new bind to window - if duplicate is found it's returned */
 415 WINDOW_BIND_REC *window_bind_add(WINDOW_REC *window, const char *servertag,
 416                                  const char *name)
 417 {
 418         WINDOW_BIND_REC *rec;
 419
 420         g_return_val_if_fail(window != NULL, NULL);
 421         g_return_val_if_fail(servertag != NULL, NULL);
 422         g_return_val_if_fail(name != NULL, NULL);
 423
 424         rec = window_bind_find(window, servertag, name);
 425         if (rec != NULL)
 426                 return rec;
 427
 428         rec = g_new0(WINDOW_BIND_REC, 1);
 429         rec->name = g_strdup(name);
 430         rec->servertag = g_strdup(servertag);
 431
 432         window->bound_items = g_slist_append(window->bound_items, rec);
 433         return rec;
 434 }
 435
 436 void window_bind_destroy(WINDOW_REC *window, WINDOW_BIND_REC *rec)
 437 {
 438         g_return_if_fail(window != NULL);
 439         g_return_if_fail(rec != NULL);
 440
 441         window->bound_items = g_slist_remove(window->bound_items, rec);
 442
 443         g_free(rec->servertag);
 444         g_free(rec->name);
 445         g_free(rec);
 446 }
 447
 448 WINDOW_BIND_REC *window_bind_find(WINDOW_REC *window, const char *servertag,
 449                                   const char *name)
 450 {
 451         GSList *tmp;
 452
 453         g_return_val_if_fail(window != NULL, NULL);
 454         g_return_val_if_fail(servertag != NULL, NULL);
 455         g_return_val_if_fail(name != NULL, NULL);
 456
 457         for (tmp = window->bound_items; tmp != NULL; tmp = tmp->next) {
 458                 WINDOW_BIND_REC *rec = tmp->data;
 459
 460                 if (g_strcasecmp(rec->name, name) == 0 &&
 461                     g_strcasecmp(rec->servertag, servertag) == 0)
 462                         return rec;
 463         }
 464
 465         return NULL;
 466 }
 467
 468 void window_bind_remove_unsticky(WINDOW_REC *window)
 469 {
 470         GSList *tmp, *next;
 471
 472         for (tmp = window->bound_items; tmp != NULL; tmp = next) {
 473                 WINDOW_BIND_REC *rec = tmp->data;
 474
 475                 next = tmp->next;
 476                 if (!rec->sticky)
 477                         window_bind_destroy(window, rec);
 478         }
 479 }
 480
 481 static void sig_server_looking(SERVER_REC *server)
 482 {
 483         GSList *tmp;
 484
 485         g_return_if_fail(server != NULL);
 486
 487         /* Try to keep some server assigned to windows..
 488            Also change active window's server if the window is empty */
 489         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 490                 WINDOW_REC *rec = tmp->data;
 491
 492                 if ((rec->servertag == NULL ||
 493                      g_strcasecmp(rec->servertag, server->tag) == 0) &&
 494                     (rec->active_server == NULL ||
 495                      (rec == active_win && rec->items == NULL)))
 496                         window_change_server(rec, server);
 497         }
 498 }
 499
 500 static void sig_server_disconnected(SERVER_REC *server)
 501 {
 502         GSList *tmp;
 503         SERVER_REC *new_server;
 504
 505         g_return_if_fail(server != NULL);
 506
 507         new_server = servers == NULL ? NULL : servers->data;
 508         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 509                 WINDOW_REC *rec = tmp->data;
 510
 511                 if (rec->active_server == server) {
 512                         window_change_server(rec, rec->servertag != NULL ?
 513                                              NULL : new_server);
 514                 }
 515         }
 516 }
 517
 518 static void window_print_daychange(WINDOW_REC *window, struct tm *tm)
 519 {
 520         THEME_REC *theme;
 521         TEXT_DEST_REC dest;
 522         char *format, str[256];
 523
 524         theme = active_win->theme != NULL ? active_win->theme : current_theme;
 525         format_create_dest(&dest, NULL, NULL, MSGLEVEL_NEVER, window);
 526         format = format_get_text_theme(theme, MODULE_NAME, &dest,
 527                                        TXT_DAYCHANGE);
 528         if (strftime(str, sizeof(str), format, tm) <= 0)
 529                 str[0] = '\0';
 530         g_free(format);
 531
 532         printtext_string_window(window, MSGLEVEL_NEVER, str);
 533 }
 534
 535 static void sig_print_text(void)
 536 {
 537         GSList *tmp;
 538         time_t t;
 539         struct tm *tm;
 540
 541         t = time(NULL);
 542         tm = localtime(&t);
 543         if (tm->tm_hour != 0 || tm->tm_min != 0)
 544                 return;
 545
 546         daycheck = 2;
 547         signal_remove("print text", (SIGNAL_FUNC) sig_print_text);
 548
 549         /* day changed, print notice about it to every window */
 550         for (tmp = windows; tmp != NULL; tmp = tmp->next)
 551                 window_print_daychange(tmp->data, tm);
 552 }
 553
 554 static int sig_check_daychange(void)
 555 {
 556         time_t t;
 557         struct tm *tm;
 558
 559         t = time(NULL);
 560         tm = localtime(&t);
 561
 562         if (daycheck == 1 && tm->tm_hour == 0 && tm->tm_min == 0) {
 563                 sig_print_text();
 564                 return TRUE;
 565         }
 566
 567         if (tm->tm_hour != 23 || tm->tm_min != 59) {
 568                 daycheck = 0;
 569                 return TRUE;
 570         }
 571
 572         /* time is 23:59 */
 573         if (daycheck == 0) {
 574                 daycheck = 1;
 575                 signal_add("print text", (SIGNAL_FUNC) sig_print_text);
 576         }
 577         return TRUE;
 578 }
 579
 580 static void read_settings(void)
 581 {
 582         if (daytag != -1) {
 583                 g_source_remove(daytag);
 584                 daytag = -1;
 585         }
 586
 587         if (settings_get_bool("timestamps"))
 588                 daytag = g_timeout_add(30000, (GSourceFunc) sig_check_daychange, NULL);
 589 }
 590
 591 void windows_init(void)
 592 {
 593         active_win = NULL;
 594         daycheck = 0; daytag = -1;
 595         settings_add_bool("lookandfeel", "window_auto_change", FALSE);
 596         settings_add_bool("lookandfeel", "windows_auto_renumber", TRUE);
 597
 598         read_settings();
 599         signal_add("server looking", (SIGNAL_FUNC) sig_server_looking);
 600         signal_add("server disconnected", (SIGNAL_FUNC) sig_server_disconnected);
 601         signal_add("server connect failed", (SIGNAL_FUNC) sig_server_disconnected);
 602         signal_add("setup changed", (SIGNAL_FUNC) read_settings);
 603 }
 604
 605 void windows_deinit(void)
 606 {
 607         if (daytag != -1) g_source_remove(daytag);
 608         if (daycheck == 1) signal_remove("print text", (SIGNAL_FUNC) sig_print_text);
 609
 610         signal_remove("server looking", (SIGNAL_FUNC) sig_server_looking);
 611         signal_remove("server disconnected", (SIGNAL_FUNC) sig_server_disconnected);
 612         signal_remove("server connect failed", (SIGNAL_FUNC) sig_server_disconnected);
 613         signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
 614 }