libempathy-gtk/empathy-theme-manager.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2005-2007 Imendio AB
   4  * Copyright (C) 2008 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (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 GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  *
  21  * Authors: Xavier Claessens <xclaesse@gmail.com>
  22  */
  23
  24 #include "config.h"
  25
  26 #include <string.h>
  27
  28 #include <glib/gi18n-lib.h>
  29 #include <telepathy-glib/dbus.h>
  30 #include <gtk/gtk.h>
  31
  32 #include <telepathy-glib/util.h>
  33
  34 #include <libempathy/empathy-gsettings.h>
  35 #include <libempathy/empathy-utils.h>
  36
  37 #include "empathy-theme-manager.h"
  38 #include "empathy-chat-view.h"
  39 #include "empathy-chat-text-view.h"
  40 #include "empathy-theme-boxes.h"
  41 #include "empathy-theme-irc.h"
  42 #include "empathy-theme-adium.h"
  43
  44 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  45 #include <libempathy/empathy-debug.h>
  46
  47 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyThemeManager)
  48 typedef struct {
  49         GSettings   *gsettings_chat;
  50         gchar       *name;
  51         GtkSettings *settings;
  52         GList       *boxes_views;
  53         guint        emit_changed_idle;
  54         gboolean     in_constructor;
  55
  56         EmpathyAdiumData *adium_data;
  57         gchar *adium_variant;
  58         /* list of weakref to EmpathyThemeAdium objects */
  59         GList *adium_views;
  60 } EmpathyThemeManagerPriv;
  61
  62 enum {
  63         THEME_CHANGED,
  64         LAST_SIGNAL
  65 };
  66
  67 static guint signals[LAST_SIGNAL] = { 0 };
  68
  69 static const gchar *themes[] = {
  70         "classic", N_("Classic"),
  71         "simple", N_("Simple"),
  72         "clean", N_("Clean"),
  73         "blue", N_("Blue"),
  74         NULL
  75 };
  76
  77 G_DEFINE_TYPE (EmpathyThemeManager, empathy_theme_manager, G_TYPE_OBJECT);
  78
  79 static gboolean
  80 theme_manager_emit_changed_idle_cb (gpointer manager)
  81 {
  82         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
  83         const gchar *adium_path = NULL;
  84
  85         if (priv->adium_data) {
  86                 adium_path = empathy_adium_data_get_path (priv->adium_data);
  87         }
  88         DEBUG ("Emit theme-changed with: name='%s' adium_path='%s' "
  89                "adium_variant='%s'", priv->name, adium_path,
  90                priv->adium_variant);
  91
  92         g_signal_emit (manager, signals[THEME_CHANGED], 0, NULL);
  93         priv->emit_changed_idle = 0;
  94
  95         return FALSE;
  96 }
  97
  98 static void
  99 theme_manager_emit_changed (EmpathyThemeManager *manager)
 100 {
 101         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 102
 103         /* We emit the signal in idle callback to be sure we emit it only once
 104          * in the case both the name and adium_path changed */
 105         if (priv->emit_changed_idle == 0 && !priv->in_constructor) {
 106                 priv->emit_changed_idle = g_idle_add (
 107                         theme_manager_emit_changed_idle_cb, manager);
 108         }
 109 }
 110
 111 static void
 112 theme_manager_view_weak_notify_cb (gpointer data,
 113                                     GObject *where_the_object_was)
 114 {
 115         GList **list = data;
 116         *list = g_list_remove (*list, where_the_object_was);
 117 }
 118
 119 static void
 120 clear_list_of_views (GList **views)
 121 {
 122         while (*views) {
 123                 g_object_weak_unref ((*views)->data,
 124                                      theme_manager_view_weak_notify_cb,
 125                                      views);
 126                 *views = g_list_delete_link (*views, *views);
 127         }
 128 }
 129
 130 static void
 131 theme_manager_gdk_color_to_hex (GdkColor *gdk_color, gchar *str_color)
 132 {
 133         g_snprintf (str_color, 10,
 134                     "#%02x%02x%02x",
 135                     gdk_color->red >> 8,
 136                     gdk_color->green >> 8,
 137                     gdk_color->blue >> 8);
 138 }
 139
 140 static EmpathyThemeIrc *
 141 theme_manager_create_irc_view (EmpathyThemeManager *manager)
 142 {
 143         EmpathyChatTextView *view;
 144         EmpathyThemeIrc     *theme;
 145
 146         theme = empathy_theme_irc_new ();
 147         view = EMPATHY_CHAT_TEXT_VIEW (theme);
 148
 149         /* Define base tags */
 150         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING,
 151                                         "size", 2000,
 152                                         NULL);
 153         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_TIME,
 154                                         "foreground", "darkgrey",
 155                                         "justification", GTK_JUSTIFY_CENTER,
 156                                         NULL);
 157         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_ACTION,
 158                                         "foreground", "brown4",
 159                                         "style", PANGO_STYLE_ITALIC,
 160                                         NULL);
 161         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_BODY,
 162                                         "foreground-set", FALSE,
 163                                         NULL);
 164         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT,
 165                                         "foreground", "PeachPuff4",
 166                                         "justification", GTK_JUSTIFY_LEFT,
 167                                         NULL);
 168         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK,
 169                                         "foreground", "steelblue",
 170                                         "underline", PANGO_UNDERLINE_SINGLE,
 171                                         NULL);
 172         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
 173                                         "background", "yellow",
 174                                         NULL);
 175
 176         /* Define IRC tags */
 177         empathy_chat_text_view_tag_set (view, EMPATHY_THEME_IRC_TAG_NICK_SELF,
 178                                         "foreground", "sea green",
 179                                         NULL);
 180         empathy_chat_text_view_tag_set (view, EMPATHY_THEME_IRC_TAG_NICK_OTHER,
 181                                         "foreground", "skyblue4",
 182                                         NULL);
 183         empathy_chat_text_view_tag_set (view, EMPATHY_THEME_IRC_TAG_NICK_HIGHLIGHT,
 184                                         "foreground", "indian red",
 185                                         "weight", PANGO_WEIGHT_BOLD,
 186                                         NULL);
 187
 188         return theme;
 189 }
 190
 191 static EmpathyThemeBoxes *
 192 theme_manager_create_boxes_view (EmpathyThemeManager *manager)
 193 {
 194         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 195         EmpathyThemeBoxes       *theme;
 196
 197         theme = empathy_theme_boxes_new ();
 198         priv->boxes_views = g_list_prepend (priv->boxes_views, theme);
 199         g_object_weak_ref (G_OBJECT (theme),
 200                            theme_manager_view_weak_notify_cb,
 201                            &priv->boxes_views);
 202
 203         return theme;
 204 }
 205
 206 static void
 207 theme_manager_update_boxes_tags (EmpathyThemeBoxes *theme,
 208                                  const gchar       *header_foreground,
 209                                  const gchar       *header_background,
 210                                  const gchar       *header_line_background,
 211                                  const gchar       *action_foreground,
 212                                  const gchar       *time_foreground,
 213                                  const gchar       *event_foreground,
 214                                  const gchar       *link_foreground,
 215                                  const gchar       *text_foreground,
 216                                  const gchar       *text_background,
 217                                  const gchar       *highlight_foreground)
 218
 219 {
 220         EmpathyChatTextView *view = EMPATHY_CHAT_TEXT_VIEW (theme);
 221         GtkTextTag          *tag;
 222
 223         DEBUG ("Update view with new colors:\n"
 224                 "header_foreground = %s\n"
 225                 "header_background = %s\n"
 226                 "header_line_background = %s\n"
 227                 "action_foreground = %s\n"
 228                 "time_foreground = %s\n"
 229                 "event_foreground = %s\n"
 230                 "link_foreground = %s\n"
 231                 "text_foreground = %s\n"
 232                 "text_background = %s\n"
 233                 "highlight_foreground = %s\n",
 234                 header_foreground, header_background, header_line_background,
 235                 action_foreground, time_foreground, event_foreground,
 236                 link_foreground, text_foreground, text_background,
 237                 highlight_foreground);
 238
 239
 240         /* FIXME: GtkTextTag don't support to set color properties to NULL.
 241          * See bug #542523 */
 242
 243         #define TAG_SET(prop, prop_set, value) \
 244                 if (value != NULL) { \
 245                         g_object_set (tag, prop, value, NULL); \
 246                 } else { \
 247                         g_object_set (tag, prop_set, FALSE, NULL); \
 248                 }
 249
 250         /* Define base tags */
 251         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
 252                                               "weight", PANGO_WEIGHT_BOLD,
 253                                               "pixels-above-lines", 4,
 254                                               NULL);
 255         TAG_SET ("paragraph-background", "paragraph-background-set", text_background);
 256         TAG_SET ("foreground", "foreground-set", highlight_foreground);
 257
 258         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING,
 259                                         "size", 3000,
 260                                         "pixels-above-lines", 8,
 261                                         NULL);
 262         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_TIME,
 263                                               "justification", GTK_JUSTIFY_CENTER,
 264                                               NULL);
 265         TAG_SET ("foreground", "foreground-set", time_foreground);
 266         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_ACTION,
 267                                               "style", PANGO_STYLE_ITALIC,
 268                                               "pixels-above-lines", 4,
 269                                               NULL);
 270         TAG_SET ("paragraph-background", "paragraph-background-set", text_background);
 271         TAG_SET ("foreground", "foreground-set", action_foreground);
 272         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_BODY,
 273                                               "pixels-above-lines", 4,
 274                                               NULL);
 275         TAG_SET ("paragraph-background", "paragraph-background-set", text_background);
 276         TAG_SET ("foreground", "foreground-set", text_foreground);
 277         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT,
 278                                               "justification", GTK_JUSTIFY_LEFT,
 279                                               NULL);
 280         TAG_SET ("foreground", "foreground-set", event_foreground);
 281         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK,
 282                                               "underline", PANGO_UNDERLINE_SINGLE,
 283                                               NULL);
 284         TAG_SET ("foreground", "foreground-set", link_foreground);
 285
 286         /* Define BOXES tags */
 287         tag = empathy_chat_text_view_tag_set (view, EMPATHY_THEME_BOXES_TAG_HEADER,
 288                                               "weight", PANGO_WEIGHT_BOLD,
 289                                               NULL);
 290         TAG_SET ("foreground", "foreground-set", header_foreground);
 291         TAG_SET ("paragraph-background", "paragraph-background-set", header_background);
 292         tag = empathy_chat_text_view_tag_set (view, EMPATHY_THEME_BOXES_TAG_HEADER_LINE,
 293                                               "size", 1,
 294                                               NULL);
 295         TAG_SET ("paragraph-background", "paragraph-background-set", header_line_background);
 296
 297         #undef TAG_SET
 298 }
 299
 300 static void
 301 on_style_set_cb (GtkWidget *widget, GtkStyle *previous_style, gpointer data)
 302 {
 303         GtkStyle *style;
 304         gchar     color1[10];
 305         gchar     color2[10];
 306         gchar     color3[10];
 307         gchar     color4[10];
 308
 309         style = gtk_widget_get_style (GTK_WIDGET (widget));
 310
 311         theme_manager_gdk_color_to_hex (&style->base[GTK_STATE_SELECTED], color1);
 312         theme_manager_gdk_color_to_hex (&style->bg[GTK_STATE_SELECTED], color2);
 313         theme_manager_gdk_color_to_hex (&style->dark[GTK_STATE_SELECTED], color3);
 314         theme_manager_gdk_color_to_hex (&style->fg[GTK_STATE_SELECTED], color4);
 315
 316         theme_manager_update_boxes_tags (EMPATHY_THEME_BOXES (widget),
 317                                          color4,     /* header_foreground */
 318                                          color2,     /* header_background */
 319                                          color3,     /* header_line_background */
 320                                          color1,     /* action_foreground */
 321                                          "darkgrey", /* time_foreground */
 322                                          "darkgrey", /* event_foreground */
 323                                          color1,     /* link_foreground */
 324                                          NULL,       /* text_foreground */
 325                                          NULL,       /* text_background */
 326                                          NULL);      /* highlight_foreground */
 327 }
 328
 329 static void
 330 theme_manager_update_boxes_theme (EmpathyThemeManager *manager,
 331                                   EmpathyThemeBoxes   *theme)
 332 {
 333         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 334
 335         if (strcmp (priv->name, "simple") == 0) {
 336                 g_signal_connect (G_OBJECT (theme), "style-set",
 337                                   G_CALLBACK (on_style_set_cb), theme);
 338         }
 339         else if (strcmp (priv->name, "clean") == 0) {
 340                 theme_manager_update_boxes_tags (theme,
 341                                                  "black",    /* header_foreground */
 342                                                  "#efefdf",  /* header_background */
 343                                                  "#e3e3d3",  /* header_line_background */
 344                                                  "brown4",   /* action_foreground */
 345                                                  "darkgrey", /* time_foreground */
 346                                                  "darkgrey", /* event_foreground */
 347                                                  "#49789e",  /* link_foreground */
 348                                                  NULL,       /* text_foreground */
 349                                                  NULL,       /* text_background */
 350                                                  NULL);      /* highlight_foreground */
 351         }
 352         else if (strcmp (priv->name, "blue") == 0) {
 353                 theme_manager_update_boxes_tags (theme,
 354                                                  "black",    /* header_foreground */
 355                                                  "#88a2b4",  /* header_background */
 356                                                  "#7f96a4",  /* header_line_background */
 357                                                  "brown4",   /* action_foreground */
 358                                                  "darkgrey", /* time_foreground */
 359                                                  "#7f96a4",  /* event_foreground */
 360                                                  "#49789e",  /* link_foreground */
 361                                                  "black",    /* text_foreground */
 362                                                  "#adbdc8",  /* text_background */
 363                                                  "black");   /* highlight_foreground */
 364         }
 365 }
 366
 367 static EmpathyThemeAdium *
 368 theme_manager_create_adium_view (EmpathyThemeManager *manager)
 369 {
 370         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 371         EmpathyThemeAdium *theme;
 372
 373         theme = empathy_theme_adium_new (priv->adium_data, priv->adium_variant);
 374         priv->adium_views = g_list_prepend (priv->adium_views, theme);
 375         g_object_weak_ref (G_OBJECT (theme),
 376                            theme_manager_view_weak_notify_cb,
 377                            &priv->adium_views);
 378
 379         return theme;
 380 }
 381
 382 static void
 383 theme_manager_notify_adium_path_cb (GSettings   *gsettings_chat,
 384                                     const gchar *key,
 385                                     gpointer     user_data)
 386 {
 387         EmpathyThemeManager     *manager = EMPATHY_THEME_MANAGER (user_data);
 388         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 389         const gchar             *current_path = NULL;
 390         gchar                   *new_path;
 391
 392         new_path = g_settings_get_string (gsettings_chat, key);
 393
 394         if (priv->adium_data != NULL) {
 395                 current_path = empathy_adium_data_get_path (priv->adium_data);
 396         }
 397
 398         /* If path did not really changed, ignore */
 399         if (!tp_strdiff (current_path, new_path)) {
 400                 g_free (new_path);
 401                 return;
 402         }
 403
 404         /* If path does not really contains an adium path, ignore */
 405         if (!empathy_adium_path_is_valid (new_path)) {
 406                 DEBUG ("Invalid theme path set: %s", new_path);
 407                 g_free (new_path);
 408                 return;
 409         }
 410
 411         /* Load new theme data, we can stop tracking existing views since we
 412          * won't be able to change them live anymore */
 413         clear_list_of_views (&priv->adium_views);
 414         tp_clear_pointer (&priv->adium_data, empathy_adium_data_unref);
 415         priv->adium_data = empathy_adium_data_new (new_path);
 416
 417         theme_manager_emit_changed (manager);
 418
 419         g_free (new_path);
 420 }
 421
 422 static void
 423 theme_manager_notify_adium_variant_cb (GSettings   *gsettings_chat,
 424                                        const gchar *key,
 425                                        gpointer     user_data)
 426 {
 427         EmpathyThemeManager     *manager = EMPATHY_THEME_MANAGER (user_data);
 428         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 429         gchar                   *new_variant;
 430         GList                   *l;
 431
 432         new_variant = g_settings_get_string (gsettings_chat, key);
 433         if (!tp_strdiff (priv->adium_variant, new_variant)) {
 434                 g_free (new_variant);
 435                 return;
 436         }
 437
 438         g_free (priv->adium_variant);
 439         priv->adium_variant = new_variant;
 440
 441         for (l = priv->adium_views; l; l = l->next) {
 442                 empathy_theme_adium_set_variant (EMPATHY_THEME_ADIUM (l->data),
 443                         priv->adium_variant);
 444         }
 445 }
 446
 447 EmpathyChatView *
 448 empathy_theme_manager_create_view (EmpathyThemeManager *manager)
 449 {
 450         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 451         EmpathyThemeBoxes       *theme;
 452
 453         g_return_val_if_fail (EMPATHY_IS_THEME_MANAGER (manager), NULL);
 454
 455         DEBUG ("Using theme %s", priv->name);
 456
 457         if (strcmp (priv->name, "adium") == 0 && priv->adium_data != NULL)  {
 458                 return EMPATHY_CHAT_VIEW (theme_manager_create_adium_view (manager));
 459         }
 460
 461         if (strcmp (priv->name, "classic") == 0)  {
 462                 return EMPATHY_CHAT_VIEW (theme_manager_create_irc_view (manager));
 463         }
 464
 465         theme = theme_manager_create_boxes_view (manager);
 466         theme_manager_update_boxes_theme (manager, theme);
 467
 468         return EMPATHY_CHAT_VIEW (theme);
 469 }
 470
 471 static gboolean
 472 theme_manager_ensure_theme_exists (const gchar *name)
 473 {
 474         gint i;
 475
 476         if (EMP_STR_EMPTY (name)) {
 477                 return FALSE;
 478         }
 479
 480         if (strcmp ("adium", name) == 0) {
 481                 return TRUE;
 482         }
 483
 484         for (i = 0; themes[i]; i += 2) {
 485                 if (strcmp (themes[i], name) == 0) {
 486                         return TRUE;
 487                 }
 488         }
 489
 490         return FALSE;
 491 }
 492
 493 typedef enum {
 494         THEME_TYPE_IRC,
 495         THEME_TYPE_BOXED,
 496         THEME_TYPE_ADIUM,
 497 } ThemeType;
 498
 499 static ThemeType
 500 theme_type (const gchar *name)
 501 {
 502         if (!tp_strdiff (name, "classic")) {
 503                 return THEME_TYPE_IRC;
 504         } else if (!tp_strdiff (name, "adium")) {
 505                 return THEME_TYPE_ADIUM;
 506         } else {
 507                 return THEME_TYPE_BOXED;
 508         }
 509 }
 510
 511 static void
 512 theme_manager_notify_name_cb (GSettings   *gsettings_chat,
 513                               const gchar *key,
 514                               gpointer     user_data)
 515 {
 516         EmpathyThemeManager     *manager = EMPATHY_THEME_MANAGER (user_data);
 517         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 518         gchar                   *name;
 519         ThemeType                old_type;
 520         ThemeType                new_type;
 521
 522         name = g_settings_get_string (gsettings_chat, key);
 523
 524         /* Fallback to classic theme if current setting does not exist */
 525         if (!theme_manager_ensure_theme_exists (name)) {
 526                 g_free (name);
 527                 name = g_strdup ("classic");
 528         }
 529
 530         /* If theme did not change, nothing to do */
 531         if (!tp_strdiff (priv->name, name)) {
 532                 g_free (name);
 533                 return;
 534         }
 535
 536         old_type = theme_type (priv->name);
 537         g_free (priv->name);
 538         priv->name = name;
 539         new_type = theme_type (priv->name);
 540
 541         if (new_type == THEME_TYPE_BOXED) {
 542                 GList *l;
 543
 544                 /* The theme changes to a boxed one, we can update boxed views */
 545                 for (l = priv->boxes_views; l; l = l->next) {
 546                         theme_manager_update_boxes_theme (manager,
 547                                                           EMPATHY_THEME_BOXES (l->data));
 548                 }
 549         }
 550
 551         /* Do not emit theme-changed if theme type didn't change. If theme
 552          * changed from a boxed to another boxed, all view are updated in place.
 553          * If theme changed from an adium to another adium, the signal will be
 554          * emited from theme_manager_notify_adium_path_cb ()
 555          */
 556         if (old_type != new_type) {
 557                 theme_manager_emit_changed (manager);
 558         }
 559 }
 560
 561 static void
 562 theme_manager_finalize (GObject *object)
 563 {
 564         EmpathyThemeManagerPriv *priv = GET_PRIV (object);
 565
 566         g_object_unref (priv->gsettings_chat);
 567         g_free (priv->name);
 568
 569         if (priv->emit_changed_idle != 0) {
 570                 g_source_remove (priv->emit_changed_idle);
 571         }
 572
 573         clear_list_of_views (&priv->boxes_views);
 574
 575         clear_list_of_views (&priv->adium_views);
 576         g_free (priv->adium_variant);
 577         tp_clear_pointer (&priv->adium_data, empathy_adium_data_unref);
 578
 579         G_OBJECT_CLASS (empathy_theme_manager_parent_class)->finalize (object);
 580 }
 581
 582 static void
 583 empathy_theme_manager_class_init (EmpathyThemeManagerClass *klass)
 584 {
 585         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 586
 587         signals[THEME_CHANGED] =
 588                 g_signal_new ("theme-changed",
 589                               G_OBJECT_CLASS_TYPE (object_class),
 590                               G_SIGNAL_RUN_LAST,
 591                               0,
 592                               NULL, NULL,
 593                               g_cclosure_marshal_generic,
 594                               G_TYPE_NONE,
 595                               0);
 596
 597         g_type_class_add_private (object_class, sizeof (EmpathyThemeManagerPriv));
 598
 599         object_class->finalize = theme_manager_finalize;
 600 }
 601
 602 static void
 603 empathy_theme_manager_init (EmpathyThemeManager *manager)
 604 {
 605         EmpathyThemeManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 606                 EMPATHY_TYPE_THEME_MANAGER, EmpathyThemeManagerPriv);
 607
 608         manager->priv = priv;
 609         priv->in_constructor = TRUE;
 610
 611         priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
 612
 613         /* Take the theme name and track changes */
 614         g_signal_connect (priv->gsettings_chat,
 615                           "changed::" EMPATHY_PREFS_CHAT_THEME,
 616                           G_CALLBACK (theme_manager_notify_name_cb),
 617                           manager);
 618         theme_manager_notify_name_cb (priv->gsettings_chat,
 619                                       EMPATHY_PREFS_CHAT_THEME,
 620                                       manager);
 621
 622         /* Take the adium path/variant and track changes */
 623         g_signal_connect (priv->gsettings_chat,
 624                           "changed::" EMPATHY_PREFS_CHAT_ADIUM_PATH,
 625                           G_CALLBACK (theme_manager_notify_adium_path_cb),
 626                           manager);
 627         theme_manager_notify_adium_path_cb (priv->gsettings_chat,
 628                                             EMPATHY_PREFS_CHAT_ADIUM_PATH,
 629                                             manager);
 630
 631         g_signal_connect (priv->gsettings_chat,
 632                           "changed::" EMPATHY_PREFS_CHAT_THEME_VARIANT,
 633                           G_CALLBACK (theme_manager_notify_adium_variant_cb),
 634                           manager);
 635         theme_manager_notify_adium_variant_cb (priv->gsettings_chat,
 636                                                EMPATHY_PREFS_CHAT_THEME_VARIANT,
 637                                                manager);
 638         priv->in_constructor = FALSE;
 639 }
 640
 641 EmpathyThemeManager *
 642 empathy_theme_manager_dup_singleton (void)
 643 {
 644         static EmpathyThemeManager *manager = NULL;
 645
 646         if (manager == NULL) {
 647                 manager = g_object_new (EMPATHY_TYPE_THEME_MANAGER, NULL);
 648                 g_object_add_weak_pointer (G_OBJECT (manager), (gpointer *) &manager);
 649
 650                 return manager;
 651         }
 652
 653         return g_object_ref (manager);
 654 }
 655
 656 const gchar **
 657 empathy_theme_manager_get_themes (void)
 658 {
 659         return themes;
 660 }
 661
 662 static void
 663 find_themes (GList **list, const gchar *dirpath)
 664 {
 665         GDir *dir;
 666         GError *error = NULL;
 667         const gchar *name = NULL;
 668         GHashTable *info = NULL;
 669
 670         dir = g_dir_open (dirpath, 0, &error);
 671         if (dir != NULL) {
 672                 name = g_dir_read_name (dir);
 673                 while (name != NULL) {
 674                         gchar *path;
 675
 676                         path = g_build_path (G_DIR_SEPARATOR_S, dirpath, name, NULL);
 677                         if (empathy_adium_path_is_valid (path)) {
 678                                 info = empathy_adium_info_new (path);
 679                                 if (info != NULL) {
 680                                         *list = g_list_prepend (*list, info);
 681                                 }
 682                         }
 683                         g_free (path);
 684                         name = g_dir_read_name (dir);
 685                 }
 686                 g_dir_close (dir);
 687         } else {
 688                 DEBUG ("Error opening %s: %s\n", dirpath, error->message);
 689                 g_error_free (error);
 690         }
 691 }
 692
 693 GList *
 694 empathy_theme_manager_get_adium_themes (void)
 695 {
 696         GList *themes_list = NULL;
 697         gchar *userpath = NULL;
 698         const gchar *const *paths = NULL;
 699         gint i = 0;
 700
 701         userpath = g_build_path (G_DIR_SEPARATOR_S, g_get_user_data_dir (), "adium/message-styles", NULL);
 702         find_themes (&themes_list, userpath);
 703         g_free (userpath);
 704
 705         paths = g_get_system_data_dirs ();
 706         for (i = 0; paths[i] != NULL; i++) {
 707                 userpath = g_build_path (G_DIR_SEPARATOR_S, paths[i],
 708                         "adium/message-styles", NULL);
 709                 find_themes (&themes_list, userpath);
 710                 g_free (userpath);
 711         }
 712
 713         return themes_list;
 714 }