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 void on_style_set_cb (GtkWidget *widget, GtkStyle *previous_style, EmpathyThemeManager *self);
 192
 193 static EmpathyThemeBoxes *
 194 theme_manager_create_boxes_view (EmpathyThemeManager *manager)
 195 {
 196         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 197         EmpathyThemeBoxes       *theme;
 198
 199         theme = empathy_theme_boxes_new ();
 200         priv->boxes_views = g_list_prepend (priv->boxes_views, theme);
 201         g_object_weak_ref (G_OBJECT (theme),
 202                            theme_manager_view_weak_notify_cb,
 203                            &priv->boxes_views);
 204
 205         g_signal_connect (G_OBJECT (theme), "style-set",
 206                           G_CALLBACK (on_style_set_cb), manager);
 207
 208         return theme;
 209 }
 210
 211 static void
 212 theme_manager_update_boxes_tags (EmpathyThemeBoxes *theme,
 213                                  const gchar       *header_foreground,
 214                                  const gchar       *header_background,
 215                                  const gchar       *header_line_background,
 216                                  const gchar       *action_foreground,
 217                                  const gchar       *time_foreground,
 218                                  const gchar       *event_foreground,
 219                                  const gchar       *link_foreground,
 220                                  const gchar       *text_foreground,
 221                                  const gchar       *text_background,
 222                                  const gchar       *highlight_foreground)
 223
 224 {
 225         EmpathyChatTextView *view = EMPATHY_CHAT_TEXT_VIEW (theme);
 226         GtkTextTag          *tag;
 227
 228         DEBUG ("Update view with new colors:\n"
 229                 "header_foreground = %s\n"
 230                 "header_background = %s\n"
 231                 "header_line_background = %s\n"
 232                 "action_foreground = %s\n"
 233                 "time_foreground = %s\n"
 234                 "event_foreground = %s\n"
 235                 "link_foreground = %s\n"
 236                 "text_foreground = %s\n"
 237                 "text_background = %s\n"
 238                 "highlight_foreground = %s\n",
 239                 header_foreground, header_background, header_line_background,
 240                 action_foreground, time_foreground, event_foreground,
 241                 link_foreground, text_foreground, text_background,
 242                 highlight_foreground);
 243
 244
 245         /* FIXME: GtkTextTag don't support to set color properties to NULL.
 246          * See bug #542523 */
 247
 248         #define TAG_SET(prop, prop_set, value) \
 249                 if (value != NULL) { \
 250                         g_object_set (tag, prop, value, NULL); \
 251                 } else { \
 252                         g_object_set (tag, prop_set, FALSE, NULL); \
 253                 }
 254
 255         /* Define base tags */
 256         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
 257                                               "weight", PANGO_WEIGHT_BOLD,
 258                                               "pixels-above-lines", 4,
 259                                               NULL);
 260         TAG_SET ("paragraph-background", "paragraph-background-set", text_background);
 261         TAG_SET ("foreground", "foreground-set", highlight_foreground);
 262
 263         empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING,
 264                                         "size", 3000,
 265                                         "pixels-above-lines", 8,
 266                                         NULL);
 267         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_TIME,
 268                                               "justification", GTK_JUSTIFY_CENTER,
 269                                               NULL);
 270         TAG_SET ("foreground", "foreground-set", time_foreground);
 271         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_ACTION,
 272                                               "style", PANGO_STYLE_ITALIC,
 273                                               "pixels-above-lines", 4,
 274                                               NULL);
 275         TAG_SET ("paragraph-background", "paragraph-background-set", text_background);
 276         TAG_SET ("foreground", "foreground-set", action_foreground);
 277         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_BODY,
 278                                               "pixels-above-lines", 4,
 279                                               NULL);
 280         TAG_SET ("paragraph-background", "paragraph-background-set", text_background);
 281         TAG_SET ("foreground", "foreground-set", text_foreground);
 282         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT,
 283                                               "justification", GTK_JUSTIFY_LEFT,
 284                                               NULL);
 285         TAG_SET ("foreground", "foreground-set", event_foreground);
 286         tag = empathy_chat_text_view_tag_set (view, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK,
 287                                               "underline", PANGO_UNDERLINE_SINGLE,
 288                                               NULL);
 289         TAG_SET ("foreground", "foreground-set", link_foreground);
 290
 291         /* Define BOXES tags */
 292         tag = empathy_chat_text_view_tag_set (view, EMPATHY_THEME_BOXES_TAG_HEADER,
 293                                               "weight", PANGO_WEIGHT_BOLD,
 294                                               NULL);
 295         TAG_SET ("foreground", "foreground-set", header_foreground);
 296         TAG_SET ("paragraph-background", "paragraph-background-set", header_background);
 297         tag = empathy_chat_text_view_tag_set (view, EMPATHY_THEME_BOXES_TAG_HEADER_LINE,
 298                                               "size", 1,
 299                                               NULL);
 300         TAG_SET ("paragraph-background", "paragraph-background-set", header_line_background);
 301
 302         #undef TAG_SET
 303 }
 304
 305 static void
 306 on_style_set_cb (GtkWidget *widget, GtkStyle *previous_style, EmpathyThemeManager *self)
 307 {
 308         EmpathyThemeManagerPriv *priv = GET_PRIV (self);
 309         GtkStyle *style;
 310         gchar     color1[10];
 311         gchar     color2[10];
 312         gchar     color3[10];
 313         gchar     color4[10];
 314
 315         /* The simple theme depends on the current GTK+ theme so it has to be
 316          * updated if the theme changes. */
 317         if (tp_strdiff (priv->name, "simple"))
 318                 return;
 319
 320         style = gtk_widget_get_style (GTK_WIDGET (widget));
 321
 322         theme_manager_gdk_color_to_hex (&style->base[GTK_STATE_SELECTED], color1);
 323         theme_manager_gdk_color_to_hex (&style->bg[GTK_STATE_SELECTED], color2);
 324         theme_manager_gdk_color_to_hex (&style->dark[GTK_STATE_SELECTED], color3);
 325         theme_manager_gdk_color_to_hex (&style->fg[GTK_STATE_SELECTED], color4);
 326
 327         theme_manager_update_boxes_tags (EMPATHY_THEME_BOXES (widget),
 328                                          color4,     /* header_foreground */
 329                                          color2,     /* header_background */
 330                                          color3,     /* header_line_background */
 331                                          color1,     /* action_foreground */
 332                                          "darkgrey", /* time_foreground */
 333                                          "darkgrey", /* event_foreground */
 334                                          color1,     /* link_foreground */
 335                                          NULL,       /* text_foreground */
 336                                          NULL,       /* text_background */
 337                                          NULL);      /* highlight_foreground */
 338 }
 339
 340 static void
 341 theme_manager_update_boxes_theme (EmpathyThemeManager *manager,
 342                                   EmpathyThemeBoxes   *theme)
 343 {
 344         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 345
 346         if (strcmp (priv->name, "simple") == 0) {
 347                 on_style_set_cb (GTK_WIDGET (theme), NULL, manager);
 348         }
 349         else if (strcmp (priv->name, "clean") == 0) {
 350                 theme_manager_update_boxes_tags (theme,
 351                                                  "black",    /* header_foreground */
 352                                                  "#efefdf",  /* header_background */
 353                                                  "#e3e3d3",  /* header_line_background */
 354                                                  "brown4",   /* action_foreground */
 355                                                  "darkgrey", /* time_foreground */
 356                                                  "darkgrey", /* event_foreground */
 357                                                  "#49789e",  /* link_foreground */
 358                                                  NULL,       /* text_foreground */
 359                                                  NULL,       /* text_background */
 360                                                  NULL);      /* highlight_foreground */
 361         }
 362         else if (strcmp (priv->name, "blue") == 0) {
 363                 theme_manager_update_boxes_tags (theme,
 364                                                  "black",    /* header_foreground */
 365                                                  "#88a2b4",  /* header_background */
 366                                                  "#7f96a4",  /* header_line_background */
 367                                                  "brown4",   /* action_foreground */
 368                                                  "darkgrey", /* time_foreground */
 369                                                  "#7f96a4",  /* event_foreground */
 370                                                  "#49789e",  /* link_foreground */
 371                                                  "black",    /* text_foreground */
 372                                                  "#adbdc8",  /* text_background */
 373                                                  "black");   /* highlight_foreground */
 374         }
 375 }
 376
 377 static EmpathyThemeAdium *
 378 theme_manager_create_adium_view (EmpathyThemeManager *manager)
 379 {
 380         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 381         EmpathyThemeAdium *theme;
 382
 383         theme = empathy_theme_adium_new (priv->adium_data, priv->adium_variant);
 384         priv->adium_views = g_list_prepend (priv->adium_views, theme);
 385         g_object_weak_ref (G_OBJECT (theme),
 386                            theme_manager_view_weak_notify_cb,
 387                            &priv->adium_views);
 388
 389         return theme;
 390 }
 391
 392 static void
 393 theme_manager_notify_adium_path_cb (GSettings   *gsettings_chat,
 394                                     const gchar *key,
 395                                     gpointer     user_data)
 396 {
 397         EmpathyThemeManager     *manager = EMPATHY_THEME_MANAGER (user_data);
 398         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 399         const gchar             *current_path = NULL;
 400         gchar                   *new_path;
 401
 402         new_path = g_settings_get_string (gsettings_chat, key);
 403
 404         if (priv->adium_data != NULL) {
 405                 current_path = empathy_adium_data_get_path (priv->adium_data);
 406         }
 407
 408         /* If path did not really changed, ignore */
 409         if (!tp_strdiff (current_path, new_path)) {
 410                 g_free (new_path);
 411                 return;
 412         }
 413
 414         /* If path does not really contains an adium path, ignore */
 415         if (!empathy_adium_path_is_valid (new_path)) {
 416                 DEBUG ("Invalid theme path set: %s", new_path);
 417                 g_free (new_path);
 418                 return;
 419         }
 420
 421         /* Load new theme data, we can stop tracking existing views since we
 422          * won't be able to change them live anymore */
 423         clear_list_of_views (&priv->adium_views);
 424         tp_clear_pointer (&priv->adium_data, empathy_adium_data_unref);
 425         priv->adium_data = empathy_adium_data_new (new_path);
 426
 427         theme_manager_emit_changed (manager);
 428
 429         g_free (new_path);
 430 }
 431
 432 static void
 433 theme_manager_notify_adium_variant_cb (GSettings   *gsettings_chat,
 434                                        const gchar *key,
 435                                        gpointer     user_data)
 436 {
 437         EmpathyThemeManager     *manager = EMPATHY_THEME_MANAGER (user_data);
 438         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 439         gchar                   *new_variant;
 440         GList                   *l;
 441
 442         new_variant = g_settings_get_string (gsettings_chat, key);
 443         if (!tp_strdiff (priv->adium_variant, new_variant)) {
 444                 g_free (new_variant);
 445                 return;
 446         }
 447
 448         g_free (priv->adium_variant);
 449         priv->adium_variant = new_variant;
 450
 451         for (l = priv->adium_views; l; l = l->next) {
 452                 empathy_theme_adium_set_variant (EMPATHY_THEME_ADIUM (l->data),
 453                         priv->adium_variant);
 454         }
 455 }
 456
 457 EmpathyChatView *
 458 empathy_theme_manager_create_view (EmpathyThemeManager *manager)
 459 {
 460         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 461         EmpathyThemeBoxes       *theme;
 462
 463         g_return_val_if_fail (EMPATHY_IS_THEME_MANAGER (manager), NULL);
 464
 465         DEBUG ("Using theme %s", priv->name);
 466
 467         if (strcmp (priv->name, "adium") == 0 && priv->adium_data != NULL)  {
 468                 return EMPATHY_CHAT_VIEW (theme_manager_create_adium_view (manager));
 469         }
 470
 471         if (strcmp (priv->name, "classic") == 0)  {
 472                 return EMPATHY_CHAT_VIEW (theme_manager_create_irc_view (manager));
 473         }
 474
 475         theme = theme_manager_create_boxes_view (manager);
 476         theme_manager_update_boxes_theme (manager, theme);
 477
 478         return EMPATHY_CHAT_VIEW (theme);
 479 }
 480
 481 static gboolean
 482 theme_manager_ensure_theme_exists (const gchar *name)
 483 {
 484         gint i;
 485
 486         if (EMP_STR_EMPTY (name)) {
 487                 return FALSE;
 488         }
 489
 490         if (strcmp ("adium", name) == 0) {
 491                 return TRUE;
 492         }
 493
 494         for (i = 0; themes[i]; i += 2) {
 495                 if (strcmp (themes[i], name) == 0) {
 496                         return TRUE;
 497                 }
 498         }
 499
 500         return FALSE;
 501 }
 502
 503 typedef enum {
 504         THEME_TYPE_IRC,
 505         THEME_TYPE_BOXED,
 506         THEME_TYPE_ADIUM,
 507 } ThemeType;
 508
 509 static ThemeType
 510 theme_type (const gchar *name)
 511 {
 512         if (!tp_strdiff (name, "classic")) {
 513                 return THEME_TYPE_IRC;
 514         } else if (!tp_strdiff (name, "adium")) {
 515                 return THEME_TYPE_ADIUM;
 516         } else {
 517                 return THEME_TYPE_BOXED;
 518         }
 519 }
 520
 521 static void
 522 theme_manager_notify_name_cb (GSettings   *gsettings_chat,
 523                               const gchar *key,
 524                               gpointer     user_data)
 525 {
 526         EmpathyThemeManager     *manager = EMPATHY_THEME_MANAGER (user_data);
 527         EmpathyThemeManagerPriv *priv = GET_PRIV (manager);
 528         gchar                   *name;
 529         ThemeType                old_type;
 530         ThemeType                new_type;
 531
 532         name = g_settings_get_string (gsettings_chat, key);
 533
 534         /* Fallback to classic theme if current setting does not exist */
 535         if (!theme_manager_ensure_theme_exists (name)) {
 536                 g_free (name);
 537                 name = g_strdup ("classic");
 538         }
 539
 540         /* If theme did not change, nothing to do */
 541         if (!tp_strdiff (priv->name, name)) {
 542                 g_free (name);
 543                 return;
 544         }
 545
 546         old_type = theme_type (priv->name);
 547         g_free (priv->name);
 548         priv->name = name;
 549         new_type = theme_type (priv->name);
 550
 551         if (new_type == THEME_TYPE_BOXED) {
 552                 GList *l;
 553
 554                 /* The theme changes to a boxed one, we can update boxed views */
 555                 for (l = priv->boxes_views; l; l = l->next) {
 556                         theme_manager_update_boxes_theme (manager,
 557                                                           EMPATHY_THEME_BOXES (l->data));
 558                 }
 559         }
 560
 561         /* Do not emit theme-changed if theme type didn't change. If theme
 562          * changed from a boxed to another boxed, all view are updated in place.
 563          * If theme changed from an adium to another adium, the signal will be
 564          * emited from theme_manager_notify_adium_path_cb ()
 565          */
 566         if (old_type != new_type) {
 567                 theme_manager_emit_changed (manager);
 568         }
 569 }
 570
 571 static void
 572 theme_manager_finalize (GObject *object)
 573 {
 574         EmpathyThemeManagerPriv *priv = GET_PRIV (object);
 575
 576         g_object_unref (priv->gsettings_chat);
 577         g_free (priv->name);
 578
 579         if (priv->emit_changed_idle != 0) {
 580                 g_source_remove (priv->emit_changed_idle);
 581         }
 582
 583         clear_list_of_views (&priv->boxes_views);
 584
 585         clear_list_of_views (&priv->adium_views);
 586         g_free (priv->adium_variant);
 587         tp_clear_pointer (&priv->adium_data, empathy_adium_data_unref);
 588
 589         G_OBJECT_CLASS (empathy_theme_manager_parent_class)->finalize (object);
 590 }
 591
 592 static void
 593 empathy_theme_manager_class_init (EmpathyThemeManagerClass *klass)
 594 {
 595         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 596
 597         signals[THEME_CHANGED] =
 598                 g_signal_new ("theme-changed",
 599                               G_OBJECT_CLASS_TYPE (object_class),
 600                               G_SIGNAL_RUN_LAST,
 601                               0,
 602                               NULL, NULL,
 603                               g_cclosure_marshal_generic,
 604                               G_TYPE_NONE,
 605                               0);
 606
 607         g_type_class_add_private (object_class, sizeof (EmpathyThemeManagerPriv));
 608
 609         object_class->finalize = theme_manager_finalize;
 610 }
 611
 612 static void
 613 empathy_theme_manager_init (EmpathyThemeManager *manager)
 614 {
 615         EmpathyThemeManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 616                 EMPATHY_TYPE_THEME_MANAGER, EmpathyThemeManagerPriv);
 617
 618         manager->priv = priv;
 619         priv->in_constructor = TRUE;
 620
 621         priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
 622
 623         /* Take the theme name and track changes */
 624         g_signal_connect (priv->gsettings_chat,
 625                           "changed::" EMPATHY_PREFS_CHAT_THEME,
 626                           G_CALLBACK (theme_manager_notify_name_cb),
 627                           manager);
 628         theme_manager_notify_name_cb (priv->gsettings_chat,
 629                                       EMPATHY_PREFS_CHAT_THEME,
 630                                       manager);
 631
 632         /* Take the adium path/variant and track changes */
 633         g_signal_connect (priv->gsettings_chat,
 634                           "changed::" EMPATHY_PREFS_CHAT_ADIUM_PATH,
 635                           G_CALLBACK (theme_manager_notify_adium_path_cb),
 636                           manager);
 637         theme_manager_notify_adium_path_cb (priv->gsettings_chat,
 638                                             EMPATHY_PREFS_CHAT_ADIUM_PATH,
 639                                             manager);
 640
 641         g_signal_connect (priv->gsettings_chat,
 642                           "changed::" EMPATHY_PREFS_CHAT_THEME_VARIANT,
 643                           G_CALLBACK (theme_manager_notify_adium_variant_cb),
 644                           manager);
 645         theme_manager_notify_adium_variant_cb (priv->gsettings_chat,
 646                                                EMPATHY_PREFS_CHAT_THEME_VARIANT,
 647                                                manager);
 648         priv->in_constructor = FALSE;
 649 }
 650
 651 EmpathyThemeManager *
 652 empathy_theme_manager_dup_singleton (void)
 653 {
 654         static EmpathyThemeManager *manager = NULL;
 655
 656         if (manager == NULL) {
 657                 manager = g_object_new (EMPATHY_TYPE_THEME_MANAGER, NULL);
 658                 g_object_add_weak_pointer (G_OBJECT (manager), (gpointer *) &manager);
 659
 660                 return manager;
 661         }
 662
 663         return g_object_ref (manager);
 664 }
 665
 666 const gchar **
 667 empathy_theme_manager_get_themes (void)
 668 {
 669         return themes;
 670 }
 671
 672 static void
 673 find_themes (GList **list, const gchar *dirpath)
 674 {
 675         GDir *dir;
 676         GError *error = NULL;
 677         const gchar *name = NULL;
 678         GHashTable *info = NULL;
 679
 680         dir = g_dir_open (dirpath, 0, &error);
 681         if (dir != NULL) {
 682                 name = g_dir_read_name (dir);
 683                 while (name != NULL) {
 684                         gchar *path;
 685
 686                         path = g_build_path (G_DIR_SEPARATOR_S, dirpath, name, NULL);
 687                         if (empathy_adium_path_is_valid (path)) {
 688                                 info = empathy_adium_info_new (path);
 689                                 if (info != NULL) {
 690                                         *list = g_list_prepend (*list, info);
 691                                 }
 692                         }
 693                         g_free (path);
 694                         name = g_dir_read_name (dir);
 695                 }
 696                 g_dir_close (dir);
 697         } else {
 698                 DEBUG ("Error opening %s: %s\n", dirpath, error->message);
 699                 g_error_free (error);
 700         }
 701 }
 702
 703 GList *
 704 empathy_theme_manager_get_adium_themes (void)
 705 {
 706         GList *themes_list = NULL;
 707         gchar *userpath = NULL;
 708         const gchar *const *paths = NULL;
 709         gint i = 0;
 710
 711         userpath = g_build_path (G_DIR_SEPARATOR_S, g_get_user_data_dir (), "adium/message-styles", NULL);
 712         find_themes (&themes_list, userpath);
 713         g_free (userpath);
 714
 715         paths = g_get_system_data_dirs ();
 716         for (i = 0; paths[i] != NULL; i++) {
 717                 userpath = g_build_path (G_DIR_SEPARATOR_S, paths[i],
 718                         "adium/message-styles", NULL);
 719                 find_themes (&themes_list, userpath);
 720                 g_free (userpath);
 721         }
 722
 723         return themes_list;
 724 }