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  *
   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
  21 #include "config.h"
  22
  23 #include <string.h>
  24
  25 #include <glib/gi18n.h>
  26 #include <gtk/gtk.h>
  27
  28 #include <libempathy/empathy-utils.h>
  29
  30 #include "empathy-chat-view.h"
  31 #include "empathy-conf.h"
  32 #include "empathy-preferences.h"
  33 #include "empathy-theme.h"
  34 #include "empathy-theme-boxes.h"
  35 #include "empathy-theme-irc.h"
  36 #include "empathy-theme-manager.h"
  37
  38 #define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_THEME_MANAGER, EmpathyThemeManagerPriv))
  39
  40 typedef struct {
  41         gchar       *name;
  42         guint        name_notify_id;
  43         guint        room_notify_id;
  44
  45         gboolean     show_avatars;
  46         guint        show_avatars_notify_id;
  47
  48         EmpathyTheme *clean_theme;
  49         EmpathyTheme *simple_theme;
  50         EmpathyTheme *blue_theme;
  51         EmpathyTheme *classic_theme;
  52
  53         GtkSettings  *settings;
  54 } EmpathyThemeManagerPriv;
  55
  56 static void        theme_manager_finalize                 (GObject            *object);
  57 static void        theme_manager_notify_name_cb           (EmpathyConf         *conf,
  58                                                            const gchar        *key,
  59                                                            gpointer            user_data);
  60 static void        theme_manager_notify_room_cb           (EmpathyConf         *conf,
  61                                                            const gchar        *key,
  62                                                            gpointer            user_data);
  63 static void        theme_manager_notify_show_avatars_cb   (EmpathyConf         *conf,
  64                                                            const gchar        *key,
  65                                                            gpointer            user_data);
  66 static void        theme_manager_apply_theme              (EmpathyThemeManager *manager,
  67                                                            EmpathyChatView     *view,
  68                                                            const gchar        *name);
  69
  70 enum {
  71         THEME_CHANGED,
  72         LAST_SIGNAL
  73 };
  74
  75 static guint signals[LAST_SIGNAL] = { 0 };
  76
  77 static const gchar *themes[] = {
  78         "classic", N_("Classic"),
  79         "simple", N_("Simple"),
  80         "clean", N_("Clean"),
  81         "blue", N_("Blue"),
  82         NULL
  83 };
  84
  85 G_DEFINE_TYPE (EmpathyThemeManager, empathy_theme_manager, G_TYPE_OBJECT);
  86
  87 static void
  88 theme_manager_gdk_color_to_hex (GdkColor *gdk_color, gchar *str_color)
  89 {
  90         g_snprintf (str_color, 10,
  91                     "#%02x%02x%02x",
  92                     gdk_color->red >> 8,
  93                     gdk_color->green >> 8,
  94                     gdk_color->blue >> 8);
  95 }
  96
  97  static void
  98 theme_manager_color_hash_notify_cb (EmpathyThemeManager *manager)
  99 {
 100         EmpathyThemeManagerPriv *priv;
 101         GtkStyle                *style;
 102         gchar                    color[10];
 103
 104         priv = GET_PRIV (manager);
 105
 106         style = gtk_widget_get_default_style ();
 107
 108         g_object_freeze_notify (G_OBJECT (priv->simple_theme));
 109
 110         theme_manager_gdk_color_to_hex (&style->base[GTK_STATE_SELECTED], color);
 111         g_object_set (priv->simple_theme,
 112                       "action-foreground", color,
 113                       "link-foreground", color,
 114                       NULL);
 115
 116         theme_manager_gdk_color_to_hex (&style->bg[GTK_STATE_SELECTED], color);
 117         g_object_set (priv->simple_theme,
 118                       "header-background", color,
 119                       NULL);
 120
 121         theme_manager_gdk_color_to_hex (&style->dark[GTK_STATE_SELECTED], color);
 122         g_object_set (priv->simple_theme,
 123                       "header-line-background", color,
 124                       NULL);
 125
 126         theme_manager_gdk_color_to_hex (&style->fg[GTK_STATE_SELECTED], color);
 127         g_object_set (priv->simple_theme,
 128                       "header-foreground", color,
 129                       NULL);
 130
 131         g_object_thaw_notify (G_OBJECT (priv->simple_theme));
 132
 133 #if 0
 134
 135 FIXME: Make that work, it should update color when theme changes but it
 136        doesnt seems to work with all themes.
 137
 138         g_object_get (priv->settings,
 139                       "color-hash", &color_hash,
 140                       NULL);
 141
 142         /*
 143          * base_color: #ffffffffffff
 144          * fg_color: #000000000000
 145          * bg_color: #e6e6e7e7e8e8
 146          * text_color: #000000000000
 147          * selected_bg_color: #58589a9adbdb
 148          * selected_fg_color: #ffffffffffff
 149          */
 150
 151         color = g_hash_table_lookup (color_hash, "base_color");
 152         if (color) {
 153                 theme_manager_gdk_color_to_hex (color, color_str);
 154                 g_object_set (priv->simple_theme,
 155                               "action-foreground", color_str,
 156                               "link-foreground", color_str,
 157                               NULL);
 158         }
 159
 160         color = g_hash_table_lookup (color_hash, "selected_bg_color");
 161         if (color) {
 162                 theme_manager_gdk_color_to_hex (color, color_str);
 163                 g_object_set (priv->simple_theme,
 164                               "header-background", color_str,
 165                               NULL);
 166         }
 167
 168         color = g_hash_table_lookup (color_hash, "bg_color");
 169         if (color) {
 170                 GdkColor tmp;
 171
 172                 tmp = *color;
 173                 tmp.red /= 2;
 174                 tmp.green /= 2;
 175                 tmp.blue /= 2;
 176                 theme_manager_gdk_color_to_hex (&tmp, color_str);
 177                 g_object_set (priv->simple_theme,
 178                               "header-line-background", color_str,
 179                               NULL);
 180         }
 181
 182         color = g_hash_table_lookup (color_hash, "selected_fg_color");
 183         if (color) {
 184                 theme_manager_gdk_color_to_hex (color, color_str);
 185                 g_object_set (priv->simple_theme,
 186                               "header-foreground", color_str,
 187                               NULL);
 188         }
 189
 190         g_hash_table_unref (color_hash);
 191
 192 #endif
 193 }
 194
 195 static void
 196 empathy_theme_manager_class_init (EmpathyThemeManagerClass *klass)
 197 {
 198         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 199
 200         signals[THEME_CHANGED] =
 201                 g_signal_new ("theme-changed",
 202                               G_OBJECT_CLASS_TYPE (object_class),
 203                               G_SIGNAL_RUN_LAST,
 204                               0,
 205                               NULL, NULL,
 206                               g_cclosure_marshal_VOID__VOID,
 207                               G_TYPE_NONE,
 208                               0);
 209
 210         g_type_class_add_private (object_class, sizeof (EmpathyThemeManagerPriv));
 211
 212         object_class->finalize = theme_manager_finalize;
 213 }
 214
 215 static void
 216 empathy_theme_manager_init (EmpathyThemeManager *manager)
 217 {
 218         EmpathyThemeManagerPriv *priv;
 219
 220         priv = GET_PRIV (manager);
 221
 222         priv->name_notify_id =
 223                 empathy_conf_notify_add (empathy_conf_get (),
 224                                         EMPATHY_PREFS_CHAT_THEME,
 225                                         theme_manager_notify_name_cb,
 226                                         manager);
 227
 228         priv->room_notify_id =
 229                 empathy_conf_notify_add (empathy_conf_get (),
 230                                         EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM,
 231                                         theme_manager_notify_room_cb,
 232                                         manager);
 233
 234         empathy_conf_get_string (empathy_conf_get (),
 235                                 EMPATHY_PREFS_CHAT_THEME,
 236                                 &priv->name);
 237
 238         /* Unused right now, but will be used soon. */
 239         priv->show_avatars_notify_id =
 240                 empathy_conf_notify_add (empathy_conf_get (),
 241                                         EMPATHY_PREFS_UI_SHOW_AVATARS,
 242                                         theme_manager_notify_show_avatars_cb,
 243                                         manager);
 244
 245         empathy_conf_get_bool (empathy_conf_get (),
 246                               EMPATHY_PREFS_UI_SHOW_AVATARS,
 247                               &priv->show_avatars);
 248
 249         priv->settings = gtk_settings_get_default ();
 250         g_signal_connect_swapped (priv->settings, "notify::color-hash",
 251                                   G_CALLBACK (theme_manager_color_hash_notify_cb),
 252                                   manager);
 253
 254         priv->simple_theme = g_object_new (EMPATHY_TYPE_THEME_BOXES, NULL);
 255         theme_manager_color_hash_notify_cb (manager);
 256
 257         priv->clean_theme = g_object_new (EMPATHY_TYPE_THEME_BOXES,
 258                                           "header-foreground", "black",
 259                                           "header-background", "#efefdf",
 260                                           "header_line_background", "#e3e3d3",
 261                                           "action_foreground", "brown4",
 262                                           "time_foreground", "darkgrey",
 263                                           "event_foreground", "darkgrey",
 264                                           "invite_foreground", "sienna",
 265                                           "link_foreground","#49789e",
 266                                           NULL);
 267
 268         priv->blue_theme = g_object_new (EMPATHY_TYPE_THEME_BOXES,
 269                                          "header_foreground", "black",
 270                                          "header_background", "#88a2b4",
 271                                          "header_line_background", "#7f96a4",
 272                                          "text_foreground", "black",
 273                                          "text_background", "#adbdc8",
 274                                          "highlight_foreground", "black",
 275                                          "action_foreground", "brown4",
 276                                          "time_foreground", "darkgrey",
 277                                          "event_foreground", "#7f96a4",
 278                                          "invite_foreground", "sienna",
 279                                          "link_foreground", "#49789e",
 280                                          NULL);
 281
 282         priv->classic_theme = g_object_new (EMPATHY_TYPE_THEME_IRC, NULL);
 283 }
 284
 285 static void
 286 theme_manager_finalize (GObject *object)
 287 {
 288         EmpathyThemeManagerPriv *priv;
 289
 290         priv = GET_PRIV (object);
 291
 292         empathy_conf_notify_remove (empathy_conf_get (), priv->name_notify_id);
 293         empathy_conf_notify_remove (empathy_conf_get (), priv->room_notify_id);
 294         empathy_conf_notify_remove (empathy_conf_get (), priv->show_avatars_notify_id);
 295
 296         g_free (priv->name);
 297
 298         g_object_unref (priv->clean_theme);
 299         g_object_unref (priv->simple_theme);
 300         g_object_unref (priv->blue_theme);
 301         g_object_unref (priv->classic_theme);
 302
 303         G_OBJECT_CLASS (empathy_theme_manager_parent_class)->finalize (object);
 304 }
 305
 306 static void
 307 theme_manager_notify_name_cb (EmpathyConf  *conf,
 308                               const gchar *key,
 309                               gpointer     user_data)
 310 {
 311         EmpathyThemeManager     *manager;
 312         EmpathyThemeManagerPriv *priv;
 313         gchar                  *name;
 314
 315         manager = user_data;
 316         priv = GET_PRIV (manager);
 317
 318         g_free (priv->name);
 319
 320         name = NULL;
 321         if (!empathy_conf_get_string (conf, key, &name) ||
 322             name == NULL || name[0] == 0) {
 323                 priv->name = g_strdup ("classic");
 324                 g_free (name);
 325         } else {
 326                 priv->name = name;
 327         }
 328
 329         g_signal_emit (manager, signals[THEME_CHANGED], 0, NULL);
 330 }
 331
 332 static void
 333 theme_manager_notify_room_cb (EmpathyConf  *conf,
 334                               const gchar *key,
 335                               gpointer     user_data)
 336 {
 337         g_signal_emit (user_data, signals[THEME_CHANGED], 0, NULL);
 338 }
 339
 340 static void
 341 theme_manager_notify_show_avatars_cb (EmpathyConf  *conf,
 342                                       const gchar *key,
 343                                       gpointer     user_data)
 344 {
 345         EmpathyThemeManager     *manager;
 346         EmpathyThemeManagerPriv *priv;
 347         gboolean                value;
 348
 349         manager = user_data;
 350         priv = GET_PRIV (manager);
 351
 352         if (!empathy_conf_get_bool (conf, key, &value)) {
 353                 priv->show_avatars = FALSE;
 354         } else {
 355                 priv->show_avatars = value;
 356         }
 357 }
 358
 359 static gboolean
 360 theme_manager_ensure_theme_exists (const gchar *name)
 361 {
 362         gint i;
 363
 364         if (G_STR_EMPTY (name)) {
 365                 return FALSE;
 366         }
 367
 368         for (i = 0; themes[i]; i += 2) {
 369                 if (strcmp (themes[i], name) == 0) {
 370                         return TRUE;
 371                 }
 372         }
 373
 374         return FALSE;
 375 }
 376
 377 static void
 378 theme_manager_apply_theme (EmpathyThemeManager *manager,
 379                            EmpathyChatView     *view,
 380                            const gchar        *name)
 381 {
 382         EmpathyThemeManagerPriv *priv;
 383         EmpathyTheme            *theme;
 384
 385         priv = GET_PRIV (manager);
 386
 387         /* Make sure all tags are present. Note: not useful now but when we have
 388          * user defined theme it will be.
 389          */
 390         if (theme_manager_ensure_theme_exists (name)) {
 391                 if (strcmp (name, "clean") == 0) {
 392                         theme = priv->clean_theme;
 393                 }
 394                 else if (strcmp (name, "simple") == 0) {
 395                         theme = priv->simple_theme;
 396                 }
 397                 else if (strcmp (name, "blue") == 0) {
 398                         theme = priv->blue_theme;
 399                 } else {
 400                         theme = priv->classic_theme;
 401                 }
 402         } else {
 403                 theme = priv->classic_theme;
 404         }
 405
 406         empathy_chat_view_set_theme (view, theme);
 407 }
 408
 409 EmpathyThemeManager *
 410 empathy_theme_manager_get (void)
 411 {
 412         static EmpathyThemeManager *manager = NULL;
 413
 414         if (!manager) {
 415                 manager = g_object_new (EMPATHY_TYPE_THEME_MANAGER, NULL);
 416         }
 417
 418         return manager;
 419 }
 420
 421 const gchar **
 422 empathy_theme_manager_get_themes (void)
 423 {
 424         return themes;
 425 }
 426
 427 void
 428 empathy_theme_manager_apply (EmpathyThemeManager *manager,
 429                             EmpathyChatView     *view,
 430                             const gchar        *name)
 431 {
 432         EmpathyThemeManagerPriv *priv;
 433
 434         priv = GET_PRIV (manager);
 435
 436         theme_manager_apply_theme (manager, view, name);
 437 }
 438
 439 void
 440 empathy_theme_manager_apply_saved (EmpathyThemeManager *manager,
 441                                   EmpathyChatView     *view)
 442 {
 443         EmpathyThemeManagerPriv *priv;
 444
 445         priv = GET_PRIV (manager);
 446
 447         theme_manager_apply_theme (manager, view, priv->name);
 448 }
 449