libpurple/idle.c

   1 /*
   2  * purple
   3  *
   4  * Purple is the legal property of its developers, whose names are too numerous
   5  * to list here.  Please refer to the COPYRIGHT file distributed with this
   6  * source distribution.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  21  *
  22  */
  23 #include "internal.h"
  24
  25 #include "connection.h"
  26 #include "debug.h"
  27 #include "eventloop.h"
  28 #include "idle.h"
  29 #include "log.h"
  30 #include "prefs.h"
  31 #include "savedstatuses.h"
  32 #include "signals.h"
  33
  34 typedef enum
  35 {
  36         PURPLE_IDLE_NOT_AWAY = 0,
  37         PURPLE_IDLE_AUTO_AWAY,
  38         PURPLE_IDLE_AWAY_BUT_NOT_AUTO_AWAY
  39
  40 } PurpleAutoAwayState;
  41
  42 static PurpleIdleUiOps *idle_ui_ops = NULL;
  43
  44 /*
  45  * This is needed for the I'dle Mak'er plugin to work correctly.  We
  46  * use it to determine if we're the ones who set our accounts idle
  47  * or if someone else did it (the I'dle Mak'er plugin, for example).
  48  * Basically we just keep track of which accounts were set idle by us,
  49  * and then we'll only set these specific accounts unidle when the
  50  * user returns.
  51  */
  52 static GList *idled_accts = NULL;
  53
  54 static guint idle_timer = 0;
  55
  56 static time_t last_active_time = 0;
  57
  58 static void
  59 set_account_idle(PurpleAccount *account, int time_idle)
  60 {
  61         PurplePresence *presence;
  62
  63         presence = purple_account_get_presence(account);
  64
  65         if (purple_presence_is_idle(presence))
  66                 /* This account is already idle! */
  67                 return;
  68
  69         purple_debug_info("idle", "Setting %s idle %d seconds\n",
  70                            purple_account_get_username(account), time_idle);
  71         purple_presence_set_idle(presence, TRUE, time(NULL) - time_idle);
  72         idled_accts = g_list_prepend(idled_accts, account);
  73 }
  74
  75 static void
  76 set_account_unidle(PurpleAccount *account)
  77 {
  78         PurplePresence *presence;
  79
  80         presence = purple_account_get_presence(account);
  81
  82         idled_accts = g_list_remove(idled_accts, account);
  83
  84         if (!purple_presence_is_idle(presence))
  85                 /* This account is already unidle! */
  86                 return;
  87
  88         purple_debug_info("idle", "Setting %s unidle\n",
  89                            purple_account_get_username(account));
  90         purple_presence_set_idle(presence, FALSE, 0);
  91 }
  92
  93
  94 static gboolean no_away = FALSE;
  95 static gint time_until_next_idle_event;
  96 /*
  97  * This function should be called when you think your idle state
  98  * may have changed.  Maybe you're over the 10-minute mark and
  99  * Purple should start reporting idle time to the server.  Maybe
 100  * you've returned from being idle.  Maybe your auto-away message
 101  * should be set.
 102  *
 103  * There is no harm to calling this many many times, other than
 104  * it will be kinda slow.  This is called by a timer set when
 105  * Purple starts.  It is also called when you send an IM, a chat, etc.
 106  *
 107  * This function has 3 sections.
 108  * 1. Get your idle time.  It will query XScreenSaver or Windows
 109  *    or use the Purple idle time.  Whatever.
 110  * 2. Set or unset your auto-away message.
 111  * 3. Report your current idle time to the IM server.
 112  */
 113
 114 static void
 115 check_idleness(void)
 116 {
 117         time_t time_idle = 0;
 118         gboolean auto_away;
 119         const gchar *idle_reporting;
 120         gboolean report_idle = TRUE;
 121         gint away_seconds = 0;
 122         gint idle_recheck_interval = 0;
 123         gint idle_poll_seconds = purple_prefs_get_int("/purple/away/mins_before_away") * 60;
 124         purple_signal_emit(purple_blist_get_handle(), "update-idle");
 125
 126         idle_reporting = purple_prefs_get_string("/purple/away/idle_reporting");
 127         auto_away = purple_prefs_get_bool("/purple/away/away_when_idle");
 128
 129         if (purple_strequal(idle_reporting, "system") &&
 130                 (idle_ui_ops != NULL) && (idle_ui_ops->get_time_idle != NULL))
 131         {
 132                 /* Use system idle time (mouse or keyboard movement, etc.) */
 133                 time_idle = idle_ui_ops->get_time_idle();
 134                 idle_recheck_interval = 1;
 135         }
 136         else if (purple_strequal(idle_reporting, "purple"))
 137         {
 138                 /* Use 'Purple idle' */
 139                 time_idle = time(NULL) - last_active_time;
 140                 idle_recheck_interval = 0;
 141         }
 142         else
 143         {
 144                 /* Don't report idle time */
 145                 report_idle = FALSE;
 146
 147                 /* If we're not reporting idle, we can still do auto-away.
 148                  * First try "system" and if that isn't possible, use "purple" */
 149                 if (auto_away)
 150                 {
 151                         if ((idle_ui_ops != NULL) && (idle_ui_ops->get_time_idle != NULL))
 152                         {
 153                                 time_idle = idle_ui_ops->get_time_idle();
 154                                 idle_recheck_interval = 1;
 155                         }
 156                         else
 157                         {
 158                                 time_idle = time(NULL) - last_active_time;
 159                                 idle_recheck_interval = 0;
 160                         }
 161                 }
 162                 else
 163                 {
 164                         if (!no_away)
 165                         {
 166                                 no_away = TRUE;
 167                                 purple_savedstatus_set_idleaway(FALSE);
 168                         }
 169                         time_until_next_idle_event = 0;
 170                         return;
 171                 }
 172         }
 173
 174         time_until_next_idle_event = idle_poll_seconds - time_idle;
 175         if (time_until_next_idle_event < 0)
 176         {
 177                 /* If we're already idle, check again as appropriate. */
 178                 time_until_next_idle_event = idle_recheck_interval;
 179         }
 180
 181         if (auto_away || !no_away)
 182                 away_seconds = 60 * purple_prefs_get_int("/purple/away/mins_before_away");
 183
 184         if (auto_away && time_idle > away_seconds)
 185         {
 186                 purple_savedstatus_set_idleaway(TRUE);
 187                 no_away = FALSE;
 188         }
 189         else if (purple_savedstatus_is_idleaway() && time_idle < away_seconds)
 190         {
 191                 purple_savedstatus_set_idleaway(FALSE);
 192                 if (time_until_next_idle_event == 0 || (away_seconds - time_idle) < time_until_next_idle_event)
 193                         time_until_next_idle_event = away_seconds - time_idle;
 194         }
 195
 196         /* Idle reporting stuff */
 197         if (report_idle && (time_idle >= idle_poll_seconds))
 198         {
 199                 GList *l;
 200                 for (l = purple_connections_get_all(); l != NULL; l = l->next)
 201                 {
 202                         PurpleConnection *gc = l->data;
 203                         set_account_idle(purple_connection_get_account(gc), time_idle);
 204                 }
 205         }
 206         else if (!report_idle || (time_idle < idle_poll_seconds ))
 207         {
 208                 while (idled_accts != NULL)
 209                         set_account_unidle(idled_accts->data);
 210         }
 211 }
 212
 213
 214 /*
 215  * Check idle and set the timer to fire at the next idle-worth event
 216  */
 217 static gboolean
 218 check_idleness_timer(void)
 219 {
 220         check_idleness();
 221         if (time_until_next_idle_event == 0)
 222                 idle_timer = 0;
 223         else
 224         {
 225                 /* +1 for the boundary,
 226                  * +1 more for g_timeout_add_seconds rounding. */
 227                 idle_timer = g_timeout_add_seconds(time_until_next_idle_event + 2, (GSourceFunc)check_idleness_timer, NULL);
 228         }
 229         return FALSE;
 230 }
 231
 232 static void
 233 im_msg_sent_cb(PurpleAccount *account, PurpleMessage *msg, void *data)
 234 {
 235         /* Check our idle time after an IM is sent */
 236         check_idleness();
 237 }
 238
 239 static void
 240 signing_on_cb(PurpleConnection *gc, void *data)
 241 {
 242         /* When signing on a new account, check if the account should be idle */
 243         check_idleness();
 244 }
 245
 246 static void
 247 signing_off_cb(PurpleConnection *gc, void *data)
 248 {
 249         PurpleAccount *account;
 250
 251         account = purple_connection_get_account(gc);
 252         set_account_unidle(account);
 253 }
 254
 255 static void
 256 idle_reporting_cb(const char *name, PurplePrefType type, gconstpointer val, gpointer data)
 257 {
 258         if (idle_timer)
 259                 g_source_remove(idle_timer);
 260         idle_timer = 0;
 261         check_idleness_timer();
 262 }
 263
 264 void
 265 purple_idle_touch()
 266 {
 267         time(&last_active_time);
 268         if (!no_away)
 269         {
 270                 if (idle_timer)
 271                         g_source_remove(idle_timer);
 272                 idle_timer = 0;
 273                 check_idleness_timer();
 274         }
 275 }
 276
 277 void
 278 purple_idle_set(time_t time)
 279 {
 280         last_active_time = time;
 281 }
 282
 283 static PurpleIdleUiOps *
 284 purple_idle_ui_ops_copy(PurpleIdleUiOps *ops)
 285 {
 286         PurpleIdleUiOps *ops_new;
 287
 288         g_return_val_if_fail(ops != NULL, NULL);
 289
 290         ops_new = g_new(PurpleIdleUiOps, 1);
 291         *ops_new = *ops;
 292
 293         return ops_new;
 294 }
 295
 296 GType
 297 purple_idle_ui_ops_get_type(void)
 298 {
 299         static GType type = 0;
 300
 301         if (type == 0) {
 302                 type = g_boxed_type_register_static("PurpleIdleUiOps",
 303                                 (GBoxedCopyFunc)purple_idle_ui_ops_copy,
 304                                 (GBoxedFreeFunc)g_free);
 305         }
 306
 307         return type;
 308 }
 309
 310 void
 311 purple_idle_set_ui_ops(PurpleIdleUiOps *ops)
 312 {
 313         idle_ui_ops = ops;
 314 }
 315
 316 PurpleIdleUiOps *
 317 purple_idle_get_ui_ops(void)
 318 {
 319         return idle_ui_ops;
 320 }
 321
 322 static void *
 323 purple_idle_get_handle(void)
 324 {
 325         static int handle;
 326
 327         return &handle;
 328 }
 329
 330 static gboolean _do_purple_idle_touch_cb(gpointer data)
 331 {
 332         int idle_poll_minutes = purple_prefs_get_int("/purple/away/mins_before_away");
 333
 334          /* +1 more for g_timeout_add_seconds rounding. */
 335         idle_timer = g_timeout_add_seconds((idle_poll_minutes * 60) + 2, (GSourceFunc)check_idleness_timer, NULL);
 336
 337         purple_idle_touch();
 338
 339         return FALSE;
 340 }
 341
 342
 343 void
 344 purple_idle_init()
 345 {
 346         purple_signal_connect(purple_conversations_get_handle(), "sent-im-msg",
 347                                                 purple_idle_get_handle(),
 348                                                 PURPLE_CALLBACK(im_msg_sent_cb), NULL);
 349         purple_signal_connect(purple_connections_get_handle(), "signing-on",
 350                                                 purple_idle_get_handle(),
 351                                                 PURPLE_CALLBACK(signing_on_cb), NULL);
 352         purple_signal_connect(purple_connections_get_handle(), "signing-off",
 353                                                 purple_idle_get_handle(),
 354                                                 PURPLE_CALLBACK(signing_off_cb), NULL);
 355
 356         purple_prefs_connect_callback(purple_idle_get_handle(), "/purple/away/idle_reporting",
 357                                       idle_reporting_cb, NULL);
 358
 359         /* Initialize the idleness asynchronously so it doesn't check idleness,
 360          * and potentially try to change the status before the UI is initialized */
 361         g_timeout_add(0, _do_purple_idle_touch_cb, NULL);
 362
 363 }
 364
 365 void
 366 purple_idle_uninit()
 367 {
 368         purple_signals_disconnect_by_handle(purple_idle_get_handle());
 369         purple_prefs_disconnect_by_handle(purple_idle_get_handle());
 370
 371         /* Remove the idle timer */
 372         if (idle_timer > 0)
 373                 g_source_remove(idle_timer);
 374         idle_timer = 0;
 375 }