libempathy/empathy-status-presets.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2005-2007 Imendio AB
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Martyn Russell <martyn@imendio.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <string.h>
  28
  29 #include <glib.h>
  30 #include <glib/gi18n.h>
  31
  32 #include <libxml/parser.h>
  33 #include <libxml/tree.h>
  34
  35 #include <telepathy-glib/util.h>
  36
  37 #include "empathy-utils.h"
  38 #include "empathy-status-presets.h"
  39
  40 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  41 #include "empathy-debug.h"
  42
  43 #define STATUS_PRESETS_XML_FILENAME "status-presets.xml"
  44 #define STATUS_PRESETS_DTD_FILENAME "empathy-status-presets.dtd"
  45 #define STATUS_PRESETS_MAX_EACH     15
  46
  47 typedef struct {
  48         gchar      *status;
  49         McPresence  state;
  50 } StatusPreset;
  51
  52 static StatusPreset *status_preset_new          (McPresence    state,
  53                                                  const gchar  *status);
  54 static void     status_preset_free              (StatusPreset *status);
  55 static void     status_presets_file_parse       (const gchar  *filename);
  56 const gchar *   status_presets_get_state_as_str (McPresence    state);
  57 static gboolean status_presets_file_save        (void);
  58 static void     status_presets_set_default      (McPresence    state,
  59                                                  const gchar  *status);
  60
  61 static GList        *presets = NULL;
  62 static StatusPreset *default_preset = NULL;
  63
  64 static StatusPreset *
  65 status_preset_new (McPresence   state,
  66                    const gchar *status)
  67 {
  68         StatusPreset *preset;
  69
  70         preset = g_new0 (StatusPreset, 1);
  71
  72         preset->status = g_strdup (status);
  73         preset->state = state;
  74
  75         return preset;
  76 }
  77
  78 static void
  79 status_preset_free (StatusPreset *preset)
  80 {
  81         g_free (preset->status);
  82         g_free (preset);
  83 }
  84
  85 static void
  86 status_presets_file_parse (const gchar *filename)
  87 {
  88         xmlParserCtxtPtr ctxt;
  89         xmlDocPtr        doc;
  90         xmlNodePtr       presets_node;
  91         xmlNodePtr       node;
  92
  93         DEBUG ("Attempting to parse file:'%s'...", filename);
  94
  95         ctxt = xmlNewParserCtxt ();
  96
  97         /* Parse and validate the file. */
  98         doc = xmlCtxtReadFile (ctxt, filename, NULL, 0);
  99         if (!doc) {
 100                 g_warning ("Failed to parse file:'%s'", filename);
 101                 xmlFreeParserCtxt (ctxt);
 102                 return;
 103         }
 104
 105         if (!empathy_xml_validate (doc, STATUS_PRESETS_DTD_FILENAME)) {
 106                 g_warning ("Failed to validate file:'%s'", filename);
 107                 xmlFreeDoc(doc);
 108                 xmlFreeParserCtxt (ctxt);
 109                 return;
 110         }
 111
 112         /* The root node, presets. */
 113         presets_node = xmlDocGetRootElement (doc);
 114
 115         node = presets_node->children;
 116         while (node) {
 117                 if (strcmp ((gchar *) node->name, "status") == 0 ||
 118                     strcmp ((gchar *) node->name, "default") == 0) {
 119                         McPresence    state;
 120                         gchar        *status;
 121                         gchar        *state_str;
 122                         StatusPreset *preset;
 123                         gboolean      is_default = FALSE;
 124
 125                         if (strcmp ((gchar *) node->name, "default") == 0) {
 126                                 is_default = TRUE;
 127                         }
 128
 129                         status = (gchar *) xmlNodeGetContent (node);
 130                         state_str = (gchar *) xmlGetProp (node, "presence");
 131
 132                         if (state_str) {
 133                                 state = empathy_presence_from_str (state_str);
 134
 135                                 if (is_default) {
 136                                         DEBUG ("Default status preset state is:"
 137                                                 " '%s', status:'%s'", state_str,
 138                                                 status);
 139
 140                                         status_presets_set_default (state, status);
 141                                 } else {
 142                                         preset = status_preset_new (state, status);
 143                                         presets = g_list_append (presets, preset);
 144                                 }
 145                         }
 146
 147                         xmlFree (status);
 148                         xmlFree (state_str);
 149                 }
 150
 151                 node = node->next;
 152         }
 153
 154         /* Use the default if not set */
 155         if (!default_preset) {
 156                 status_presets_set_default (MC_PRESENCE_OFFLINE, NULL);
 157         }
 158
 159         DEBUG ("Parsed %d status presets", g_list_length (presets));
 160
 161         xmlFreeDoc (doc);
 162         xmlFreeParserCtxt (ctxt);
 163 }
 164
 165 void
 166 empathy_status_presets_get_all (void)
 167 {
 168         gchar *dir;
 169         gchar *file_with_path;
 170
 171         /* If already set up clean up first. */
 172         if (presets) {
 173                 g_list_foreach (presets, (GFunc) status_preset_free, NULL);
 174                 g_list_free (presets);
 175                 presets = NULL;
 176         }
 177
 178         dir = g_build_filename (g_get_home_dir (), ".gnome2", PACKAGE_NAME, NULL);
 179         g_mkdir_with_parents (dir, S_IRUSR | S_IWUSR | S_IXUSR);
 180         file_with_path = g_build_filename (dir, STATUS_PRESETS_XML_FILENAME, NULL);
 181         g_free (dir);
 182
 183         if (g_file_test (file_with_path, G_FILE_TEST_EXISTS)) {
 184                 status_presets_file_parse (file_with_path);
 185         }
 186
 187         g_free (file_with_path);
 188 }
 189
 190 static gboolean
 191 status_presets_file_save (void)
 192 {
 193         xmlDocPtr   doc;
 194         xmlNodePtr  root;
 195         GList      *l;
 196         gchar      *dir;
 197         gchar      *file;
 198         gint        count[LAST_MC_PRESENCE];
 199         gint        i;
 200
 201         for (i = 0; i < LAST_MC_PRESENCE; i++) {
 202                 count[i] = 0;
 203         }
 204
 205         dir = g_build_filename (g_get_home_dir (), ".gnome2", PACKAGE_NAME, NULL);
 206         g_mkdir_with_parents (dir, S_IRUSR | S_IWUSR | S_IXUSR);
 207         file = g_build_filename (dir, STATUS_PRESETS_XML_FILENAME, NULL);
 208         g_free (dir);
 209
 210         doc = xmlNewDoc ("1.0");
 211         root = xmlNewNode (NULL, "presets");
 212         xmlDocSetRootElement (doc, root);
 213
 214         if (default_preset) {
 215                 xmlNodePtr  subnode;
 216                 xmlChar    *state;
 217
 218                 state = (gchar*) empathy_presence_to_str (default_preset->state);
 219
 220                 subnode = xmlNewTextChild (root, NULL, "default",
 221                                            default_preset->status);
 222                 xmlNewProp (subnode, "presence", state);
 223         }
 224
 225         for (l = presets; l; l = l->next) {
 226                 StatusPreset *sp;
 227                 xmlNodePtr    subnode;
 228                 xmlChar      *state;
 229
 230                 sp = l->data;
 231                 state = (gchar*) empathy_presence_to_str (sp->state);
 232
 233                 count[sp->state]++;
 234                 if (count[sp->state] > STATUS_PRESETS_MAX_EACH) {
 235                         continue;
 236                 }
 237
 238                 subnode = xmlNewTextChild (root, NULL,
 239                                            "status", sp->status);
 240                 xmlNewProp (subnode, "presence", state);
 241         }
 242
 243         /* Make sure the XML is indented properly */
 244         xmlIndentTreeOutput = 1;
 245
 246         DEBUG ("Saving file:'%s'", file);
 247         xmlSaveFormatFileEnc (file, doc, "utf-8", 1);
 248         xmlFreeDoc (doc);
 249
 250         g_free (file);
 251
 252         return TRUE;
 253 }
 254
 255 GList *
 256 empathy_status_presets_get (McPresence state,
 257                            gint       max_number)
 258 {
 259         GList *list = NULL;
 260         GList *l;
 261         gint   i;
 262
 263         i = 0;
 264         for (l = presets; l; l = l->next) {
 265                 StatusPreset *sp;
 266
 267                 sp = l->data;
 268
 269                 if (sp->state != state) {
 270                         continue;
 271                 }
 272
 273                 list = g_list_append (list, sp->status);
 274                 i++;
 275
 276                 if (max_number != -1 && i >= max_number) {
 277                         break;
 278                 }
 279         }
 280
 281         return list;
 282 }
 283
 284 void
 285 empathy_status_presets_set_last (McPresence   state,
 286                                 const gchar *status)
 287 {
 288         GList        *l;
 289         StatusPreset *preset;
 290         gint          num;
 291
 292         /* Check if duplicate */
 293         for (l = presets; l; l = l->next) {
 294                 preset = l->data;
 295
 296                 if (state == preset->state &&
 297                     !tp_strdiff (status, preset->status)) {
 298                         return;
 299                 }
 300         }
 301
 302         preset = status_preset_new (state, status);
 303         presets = g_list_prepend (presets, preset);
 304
 305         num = 0;
 306         for (l = presets; l; l = l->next) {
 307                 preset = l->data;
 308
 309                 if (state != preset->state) {
 310                         continue;
 311                 }
 312
 313                 num++;
 314
 315                 if (num > STATUS_PRESETS_MAX_EACH) {
 316                         status_preset_free (preset);
 317                         presets = g_list_delete_link (presets, l);
 318                         break;
 319                 }
 320         }
 321
 322         status_presets_file_save ();
 323 }
 324
 325 void
 326 empathy_status_presets_remove (McPresence   state,
 327                                const gchar *status)
 328 {
 329         StatusPreset *preset;
 330         GList        *l;
 331
 332         for (l = presets; l; l = l->next) {
 333                 preset = l->data;
 334
 335                 if (state == preset->state &&
 336                     !tp_strdiff (status, preset->status)) {
 337                         status_preset_free (preset);
 338                         presets = g_list_delete_link (presets, l);
 339                         status_presets_file_save ();
 340                         break;
 341                 }
 342         }
 343 }
 344
 345 void
 346 empathy_status_presets_reset (void)
 347 {
 348         g_list_foreach (presets, (GFunc) status_preset_free, NULL);
 349         g_list_free (presets);
 350
 351         presets = NULL;
 352
 353         status_presets_set_default (MC_PRESENCE_AVAILABLE, NULL);
 354
 355         status_presets_file_save ();
 356 }
 357
 358 McPresence
 359 empathy_status_presets_get_default_state (void)
 360 {
 361         if (!default_preset) {
 362                 return MC_PRESENCE_OFFLINE;
 363         }
 364
 365         return default_preset->state;
 366 }
 367
 368 const gchar *
 369 empathy_status_presets_get_default_status (void)
 370 {
 371         if (!default_preset ||
 372             !default_preset->status) {
 373                 return NULL;
 374         }
 375
 376         return default_preset->status;
 377 }
 378
 379 static void
 380 status_presets_set_default (McPresence   state,
 381                             const gchar *status)
 382 {
 383         if (default_preset) {
 384                 status_preset_free (default_preset);
 385         }
 386
 387         default_preset = status_preset_new (state, status);
 388 }
 389
 390 void
 391 empathy_status_presets_set_default (McPresence   state,
 392                                    const gchar *status)
 393 {
 394         status_presets_set_default (state, status);
 395         status_presets_file_save ();
 396 }
 397
 398 void
 399 empathy_status_presets_clear_default (void)
 400 {
 401         if (default_preset) {
 402                 status_preset_free (default_preset);
 403                 default_preset = NULL;
 404         }
 405
 406         status_presets_file_save ();
 407 }