apps/irssi/src/fe-text/textbuffer-commands.c

   1 /*
   2  textbuffer-commands.c : Text buffer handling
   3
   4     Copyright (C) 1999-2001 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 "signals.h"
  24 #include "commands.h"
  25 #include "misc.h"
  26 #include "levels.h"
  27 #include "settings.h"
  28 #include "servers.h"
  29
  30 #include "printtext.h"
  31 #include "gui-windows.h"
  32 #include "textbuffer-reformat.h"
  33
  34 /* SYNTAX: CLEAR [-all] [<refnum>] */
  35 static void cmd_clear(const char *data)
  36 {
  37         WINDOW_REC *window;
  38         GHashTable *optlist;
  39         char *refnum;
  40         void *free_arg;
  41         GSList *tmp;
  42
  43         g_return_if_fail(data != NULL);
  44
  45         if (!cmd_get_params(data, &free_arg, 1 | PARAM_FLAG_OPTIONS,
  46                             "clear", &optlist, &refnum)) return;
  47
  48         if (g_hash_table_lookup(optlist, "all") != NULL) {
  49                 /* clear all windows */
  50                 for (tmp = windows; tmp != NULL; tmp = tmp->next) {
  51                         WINDOW_REC *window = tmp->data;
  52
  53                         textbuffer_view_clear(WINDOW_GUI(window)->view);
  54                 }
  55         } else if (*refnum != '\0') {
  56                 /* clear specified window */
  57                 window = window_find_refnum(atoi(refnum));
  58                 if (window != NULL)
  59                         textbuffer_view_clear(WINDOW_GUI(window)->view);
  60         } else {
  61                 /* clear active window */
  62                 textbuffer_view_clear(WINDOW_GUI(active_win)->view);
  63         }
  64
  65         cmd_params_free(free_arg);
  66 }
  67
  68 static void cmd_window_scroll(const char *data)
  69 {
  70         GUI_WINDOW_REC *gui;
  71
  72         gui = WINDOW_GUI(active_win);
  73         if (g_strcasecmp(data, "default") == 0) {
  74                 gui->use_scroll = FALSE;
  75         } else if (g_strcasecmp(data, "on") == 0) {
  76                 gui->use_scroll = TRUE;
  77                 gui->scroll = TRUE;
  78         } else if (g_strcasecmp(data, "off") == 0) {
  79                 gui->use_scroll = TRUE;
  80                 gui->scroll = FALSE;
  81         } else if (*data != '\0') {
  82                 printformat(NULL, NULL, MSGLEVEL_CLIENTERROR,
  83                             TXT_WINDOW_SCROLL_UNKNOWN, data);
  84                 return;
  85         }
  86
  87         printformat_window(active_win, MSGLEVEL_CLIENTNOTICE,
  88                            TXT_WINDOW_SCROLL, !gui->use_scroll ? "DEFAULT" :
  89                            gui->scroll ? "ON" : "OFF");
  90         textbuffer_view_set_scroll(gui->view, gui->use_scroll ?
  91                                    gui->scroll : settings_get_bool("scroll"));
  92 }
  93
  94 static void cmd_scrollback(const char *data, SERVER_REC *server,
  95                            WI_ITEM_REC *item)
  96 {
  97         command_runsub("scrollback", data, server, item);
  98 }
  99
 100 /* SYNTAX: SCROLLBACK CLEAR */
 101 static void cmd_scrollback_clear(void)
 102 {
 103         textbuffer_view_remove_all_lines(WINDOW_GUI(active_win)->view);
 104 }
 105
 106 static void scrollback_goto_line(int linenum)
 107 {
 108         TEXT_BUFFER_VIEW_REC *view;
 109
 110         view = WINDOW_GUI(active_win)->view;
 111         if (view->buffer->lines_count == 0)
 112                 return;
 113
 114         textbuffer_view_scroll_line(view, view->buffer->first_line);
 115         gui_window_scroll(active_win, linenum);
 116 }
 117
 118 static void scrollback_goto_time(const char *datearg, const char *timearg)
 119 {
 120         LINE_REC *line;
 121         struct tm tm;
 122         time_t now, stamp;
 123         int day, month;
 124
 125         /* [dd[.mm] | -<days ago>] hh:mi[:ss] */
 126         now = stamp = time(NULL);
 127         if (*datearg == '-') {
 128                 /* -<days ago> */
 129                 stamp -= atoi(datearg+1) * 3600*24;
 130                 memcpy(&tm, localtime(&stamp), sizeof(struct tm));
 131         } else if (*timearg != '\0') {
 132                 /* dd[.mm] */
 133                 memcpy(&tm, localtime(&stamp), sizeof(struct tm));
 134
 135                 day = month = 0;
 136                 sscanf(datearg, "%d.%d", &day, &month);
 137                 if (day <= 0) return;
 138
 139                 if (month <= 0) {
 140                         /* month not given */
 141                         if (day > tm.tm_mday) {
 142                                 /* last month's day */
 143                                 if (tm.tm_mon > 0)
 144                                         tm.tm_mon--;
 145                                 else {
 146                                         /* last year's day.. */
 147                                         tm.tm_year--;
 148                                         tm.tm_mon = 11;
 149                                 }
 150                         }
 151                 } else {
 152                         month--;
 153                         if (month > tm.tm_mon)
 154                                 tm.tm_year--;
 155                         tm.tm_mon = month;
 156                 }
 157
 158                 tm.tm_mday = day;
 159                 stamp = mktime(&tm);
 160         }
 161         else
 162         {
 163                 /* only time given, move it to timearg */
 164                 timearg = datearg;
 165         }
 166
 167         /* hh:mi[:ss] */
 168         memcpy(&tm, localtime(&stamp), sizeof(struct tm));
 169         tm.tm_sec = 0;
 170         sscanf(timearg, "%d:%d:%d", &tm.tm_hour, &tm.tm_min, &tm.tm_sec);
 171         stamp = mktime(&tm);
 172
 173         if (stamp > now && timearg == datearg) {
 174                 /* we used /SB GOTO 23:59 or something, we want to jump to
 175                    previous day's 23:59 time instead of into future. */
 176                 stamp -= 3600*24;
 177         }
 178
 179         if (stamp > now) {
 180                 /* we're still looking into future, don't bother checking */
 181                 return;
 182         }
 183
 184         /* scroll to first line after timestamp */
 185         line = textbuffer_view_get_lines(WINDOW_GUI(active_win)->view);
 186         for (; line != NULL; line = line->next) {
 187                 if (line->info.time >= stamp) {
 188                         gui_window_scroll_line(active_win, line);
 189                         break;
 190                 }
 191         }
 192 }
 193
 194 /* SYNTAX: SCROLLBACK GOTO <+|-linecount>|<linenum>|<timestamp> */
 195 static void cmd_scrollback_goto(const char *data)
 196 {
 197         char *datearg, *timearg;
 198         void *free_arg;
 199         int lines;
 200
 201         if (!cmd_get_params(data, &free_arg, 2, &datearg, &timearg))
 202                 return;
 203
 204         if (*timearg == '\0' && (*datearg == '-' || *datearg == '+')) {
 205                 /* go forward/backward n lines */
 206                 lines = atoi(datearg + (*datearg == '-' ? 0 : 1));
 207                 gui_window_scroll(active_win, lines);
 208         } else if (*timearg == '\0' && is_numeric(datearg, '\0')) {
 209                 /* go to n'th line. */
 210                 scrollback_goto_line(atoi(datearg));
 211         } else {
 212                 /* should be timestamp */
 213                 scrollback_goto_time(datearg, timearg);
 214         }
 215
 216         cmd_params_free(free_arg);
 217 }
 218
 219 /* SYNTAX: SCROLLBACK HOME */
 220 static void cmd_scrollback_home(const char *data)
 221 {
 222         TEXT_BUFFER_REC *buffer;
 223
 224         buffer = WINDOW_GUI(active_win)->view->buffer;
 225         if (buffer->lines_count > 0)
 226                 gui_window_scroll_line(active_win, buffer->first_line);
 227 }
 228
 229 /* SYNTAX: SCROLLBACK END */
 230 static void cmd_scrollback_end(const char *data)
 231 {
 232         TEXT_BUFFER_VIEW_REC *view;
 233
 234         view = WINDOW_GUI(active_win)->view;
 235         if (view->bottom_startline == NULL ||
 236             (view->bottom_startline == view->startline &&
 237              view->bottom_subline == view->subline))
 238                 return;
 239
 240         textbuffer_view_scroll_line(view, view->bottom_startline);
 241         gui_window_scroll(active_win, view->bottom_subline);
 242 }
 243
 244 /* SYNTAX: SCROLLBACK REDRAW */
 245 static void cmd_scrollback_redraw(void)
 246 {
 247         GUI_WINDOW_REC *gui;
 248         LINE_REC *line, *next;
 249
 250         gui = WINDOW_GUI(active_win);
 251
 252         term_refresh_freeze();
 253         line = textbuffer_view_get_lines(gui->view);
 254         while (line != NULL) {
 255                 next = line->next;
 256                 textbuffer_reformat_line(active_win, line);
 257                 line = next;
 258         }
 259
 260         gui_window_redraw(active_win);
 261         term_refresh_thaw();
 262 }
 263
 264 static void cmd_scrollback_status(void)
 265 {
 266         GSList *tmp;
 267         int window_kb, total_lines, total_kb;
 268
 269         total_lines = 0; total_kb = 0;
 270         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 271                 WINDOW_REC *window = tmp->data;
 272                 TEXT_BUFFER_VIEW_REC *view;
 273
 274                 view = WINDOW_GUI(window)->view;
 275
 276                 window_kb = g_slist_length(view->buffer->text_chunks)*
 277                         LINE_TEXT_CHUNK_SIZE/1024;
 278                 total_lines += view->buffer->lines_count;
 279                 total_kb += window_kb;
 280                 printtext(NULL, NULL, MSGLEVEL_CLIENTCRAP,
 281                           "Window %d: %d lines, %dkB of data",
 282                           window->refnum, view->buffer->lines_count,
 283                           window_kb);
 284         }
 285
 286         printtext(NULL, NULL, MSGLEVEL_CLIENTCRAP,
 287                   "Total: %d lines, %dkB of data",
 288                   total_lines, total_kb);
 289 }
 290
 291 static void sig_away_changed(SERVER_REC *server)
 292 {
 293         GSList *tmp;
 294
 295         if (!server->usermode_away)
 296                 return;
 297
 298         for (tmp = windows; tmp != NULL; tmp = tmp->next) {
 299                 WINDOW_REC *rec = tmp->data;
 300
 301                 textbuffer_view_set_bookmark_bottom(WINDOW_GUI(rec)->view,
 302                                                     "lastlog_last_away");
 303         }
 304 }
 305
 306 void textbuffer_commands_init(void)
 307 {
 308         command_bind("clear", NULL, (SIGNAL_FUNC) cmd_clear);
 309         command_bind("window scroll", NULL, (SIGNAL_FUNC) cmd_window_scroll);
 310         command_bind("scrollback", NULL, (SIGNAL_FUNC) cmd_scrollback);
 311         command_bind("scrollback clear", NULL, (SIGNAL_FUNC) cmd_scrollback_clear);
 312         command_bind("scrollback goto", NULL, (SIGNAL_FUNC) cmd_scrollback_goto);
 313         command_bind("scrollback home", NULL, (SIGNAL_FUNC) cmd_scrollback_home);
 314         command_bind("scrollback end", NULL, (SIGNAL_FUNC) cmd_scrollback_end);
 315         command_bind("scrollback redraw", NULL, (SIGNAL_FUNC) cmd_scrollback_redraw);
 316         command_bind("scrollback status", NULL, (SIGNAL_FUNC) cmd_scrollback_status);
 317
 318         command_set_options("clear", "all");
 319
 320         signal_add("away mode changed", (SIGNAL_FUNC) sig_away_changed);
 321 }
 322
 323 void textbuffer_commands_deinit(void)
 324 {
 325         command_unbind("clear", (SIGNAL_FUNC) cmd_clear);
 326         command_unbind("window scroll", (SIGNAL_FUNC) cmd_window_scroll);
 327         command_unbind("scrollback", (SIGNAL_FUNC) cmd_scrollback);
 328         command_unbind("scrollback clear", (SIGNAL_FUNC) cmd_scrollback_clear);
 329         command_unbind("scrollback goto", (SIGNAL_FUNC) cmd_scrollback_goto);
 330         command_unbind("scrollback home", (SIGNAL_FUNC) cmd_scrollback_home);
 331         command_unbind("scrollback end", (SIGNAL_FUNC) cmd_scrollback_end);
 332         command_unbind("scrollback redraw", (SIGNAL_FUNC) cmd_scrollback_redraw);
 333         command_unbind("scrollback status", (SIGNAL_FUNC) cmd_scrollback_status);
 334
 335         signal_remove("away mode changed", (SIGNAL_FUNC) sig_away_changed);
 336 }