libempathy-gtk/empathy-smiley-manager.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library 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  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Dafydd Harrie <dafydd.harries@collabora.co.uk>
  20  *          Xavier Claessens <xclaesse@gmail.com>
  21  */
  22
  23 #include <config.h>
  24
  25 #include <string.h>
  26
  27 #include <libempathy/empathy-utils.h>
  28 #include "empathy-smiley-manager.h"
  29 #include "empathy-ui-utils.h"
  30
  31 typedef struct _SmileyManagerTree SmileyManagerTree;
  32
  33 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathySmileyManager)
  34 typedef struct {
  35         SmileyManagerTree *tree;
  36         GSList            *smileys;
  37 } EmpathySmileyManagerPriv;
  38
  39 struct _SmileyManagerTree {
  40         gunichar     c;
  41         GdkPixbuf   *pixbuf;
  42         const gchar *path;
  43         GSList      *childrens;
  44 };
  45
  46 G_DEFINE_TYPE (EmpathySmileyManager, empathy_smiley_manager, G_TYPE_OBJECT);
  47
  48 static EmpathySmileyManager *manager_singleton = NULL;
  49
  50 static SmileyManagerTree *
  51 smiley_manager_tree_new (gunichar c)
  52 {
  53         SmileyManagerTree *tree;
  54
  55         tree = g_slice_new0 (SmileyManagerTree);
  56         tree->c = c;
  57         tree->pixbuf = NULL;
  58         tree->childrens = NULL;
  59         tree->path = NULL;
  60
  61         return tree;
  62 }
  63
  64 static void
  65 smiley_manager_tree_free (SmileyManagerTree *tree)
  66 {
  67         GSList *l;
  68
  69         if (!tree) {
  70                 return;
  71         }
  72
  73         for (l = tree->childrens; l; l = l->next) {
  74                 smiley_manager_tree_free (l->data);
  75         }
  76
  77         if (tree->pixbuf) {
  78                 g_object_unref (tree->pixbuf);
  79         }
  80         g_slist_free (tree->childrens);
  81         g_slice_free (SmileyManagerTree, tree);
  82 }
  83
  84 /* Note: This function takes the ownership of str */
  85 static EmpathySmiley *
  86 smiley_new (GdkPixbuf *pixbuf, gchar *str, const gchar *path)
  87 {
  88         EmpathySmiley *smiley;
  89
  90         smiley = g_slice_new0 (EmpathySmiley);
  91         if (pixbuf) {
  92                 smiley->pixbuf = g_object_ref (pixbuf);
  93         }
  94         smiley->str = str;
  95         smiley->path = path;
  96
  97         return smiley;
  98 }
  99
 100 void
 101 empathy_smiley_free (EmpathySmiley *smiley)
 102 {
 103         if (!smiley) {
 104                 return;
 105         }
 106
 107         if (smiley->pixbuf) {
 108                 g_object_unref (smiley->pixbuf);
 109         }
 110         g_free (smiley->str);
 111         g_slice_free (EmpathySmiley, smiley);
 112 }
 113
 114 static void
 115 smiley_manager_finalize (GObject *object)
 116 {
 117         EmpathySmileyManagerPriv *priv = GET_PRIV (object);
 118         GSList                   *l;
 119
 120         smiley_manager_tree_free (priv->tree);
 121         for (l = priv->smileys; l; l = l->next) {
 122                 EmpathySmiley *smiley = l->data;
 123
 124                 /* The smiley got the ownership of the path */
 125                 g_free ((gchar*) smiley->path);
 126                 empathy_smiley_free (smiley);
 127         }
 128         g_slist_foreach (priv->smileys, (GFunc) empathy_smiley_free, NULL);
 129         g_slist_free (priv->smileys);
 130 }
 131
 132 static GObject *
 133 smiley_manager_constructor (GType type,
 134                             guint n_props,
 135                             GObjectConstructParam *props)
 136 {
 137         GObject *retval;
 138
 139         if (manager_singleton) {
 140                 retval = g_object_ref (manager_singleton);
 141         } else {
 142                 retval = G_OBJECT_CLASS (empathy_smiley_manager_parent_class)->constructor
 143                         (type, n_props, props);
 144
 145                 manager_singleton = EMPATHY_SMILEY_MANAGER (retval);
 146                 g_object_add_weak_pointer (retval, (gpointer) &manager_singleton);
 147         }
 148
 149         return retval;
 150 }
 151
 152 static void
 153 empathy_smiley_manager_class_init (EmpathySmileyManagerClass *klass)
 154 {
 155         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 156
 157         object_class->finalize = smiley_manager_finalize;
 158         object_class->constructor = smiley_manager_constructor;
 159
 160         g_type_class_add_private (object_class, sizeof (EmpathySmileyManagerPriv));
 161 }
 162
 163 static void
 164 empathy_smiley_manager_init (EmpathySmileyManager *manager)
 165 {
 166         EmpathySmileyManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 167                 EMPATHY_TYPE_SMILEY_MANAGER, EmpathySmileyManagerPriv);
 168
 169         manager->priv = priv;
 170         priv->tree = smiley_manager_tree_new ('\0');
 171         priv->smileys = NULL;
 172
 173         empathy_smiley_manager_load (manager);
 174 }
 175
 176 EmpathySmileyManager *
 177 empathy_smiley_manager_dup_singleton (void)
 178 {
 179         return g_object_new (EMPATHY_TYPE_SMILEY_MANAGER, NULL);
 180 }
 181
 182 static SmileyManagerTree *
 183 smiley_manager_tree_find_child (SmileyManagerTree *tree, gunichar c)
 184 {
 185         GSList *l;
 186
 187         for (l = tree->childrens; l; l = l->next) {
 188                 SmileyManagerTree *child = l->data;
 189
 190                 if (child->c == c) {
 191                         return child;
 192                 }
 193         }
 194
 195         return NULL;
 196 }
 197
 198 static SmileyManagerTree *
 199 smiley_manager_tree_find_or_insert_child (SmileyManagerTree *tree, gunichar c)
 200 {
 201         SmileyManagerTree *child;
 202
 203         child = smiley_manager_tree_find_child (tree, c);
 204
 205         if (!child) {
 206                 child = smiley_manager_tree_new (c);
 207                 tree->childrens = g_slist_prepend (tree->childrens, child);
 208         }
 209
 210         return child;
 211 }
 212
 213 static void
 214 smiley_manager_tree_insert (SmileyManagerTree *tree,
 215                             GdkPixbuf         *pixbuf,
 216                             const gchar       *str,
 217                             const gchar       *path)
 218 {
 219         SmileyManagerTree *child;
 220
 221         child = smiley_manager_tree_find_or_insert_child (tree, g_utf8_get_char (str));
 222
 223         str = g_utf8_next_char (str);
 224         if (*str) {
 225                 smiley_manager_tree_insert (child, pixbuf, str, path);
 226                 return;
 227         }
 228
 229         child->pixbuf = g_object_ref (pixbuf);
 230         child->path = path;
 231 }
 232
 233 static void
 234 smiley_manager_add_valist (EmpathySmileyManager *manager,
 235                            GdkPixbuf            *pixbuf,
 236                            gchar                *path,
 237                            const gchar          *first_str,
 238                            va_list               var_args)
 239 {
 240         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 241         const gchar              *str;
 242         EmpathySmiley            *smiley;
 243
 244         for (str = first_str; str; str = va_arg (var_args, gchar*)) {
 245                 smiley_manager_tree_insert (priv->tree, pixbuf, str, path);
 246         }
 247
 248         /* We give the ownership of path to the smiley */
 249         smiley = smiley_new (pixbuf, g_strdup (first_str), path);
 250         priv->smileys = g_slist_prepend (priv->smileys, smiley);
 251 }
 252
 253 void
 254 empathy_smiley_manager_add (EmpathySmileyManager *manager,
 255                             const gchar          *icon_name,
 256                             const gchar          *first_str,
 257                             ...)
 258 {
 259         GdkPixbuf *pixbuf;
 260         va_list    var_args;
 261
 262         g_return_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager));
 263         g_return_if_fail (!EMP_STR_EMPTY (icon_name));
 264         g_return_if_fail (!EMP_STR_EMPTY (first_str));
 265
 266         pixbuf = empathy_pixbuf_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
 267         if (pixbuf) {
 268                 gchar *path;
 269
 270                 va_start (var_args, first_str);
 271                 path = empathy_filename_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
 272                 smiley_manager_add_valist (manager, pixbuf, path, first_str, var_args);
 273                 va_end (var_args);
 274                 g_object_unref (pixbuf);
 275         }
 276 }
 277
 278 void
 279 empathy_smiley_manager_load (EmpathySmileyManager *manager)
 280 {
 281         g_return_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager));
 282
 283         /* From fd.o icon-naming spec */
 284         empathy_smiley_manager_add (manager, "face-angel",      "O:-)",  "O:)",  NULL);
 285         empathy_smiley_manager_add (manager, "face-cool",       "B-)",   "B)",   NULL);
 286         empathy_smiley_manager_add (manager, "face-crying",     ":'(", NULL);
 287         empathy_smiley_manager_add (manager, "face-devilish",   ">:-)",  ">:)",  NULL);
 288         empathy_smiley_manager_add (manager, "face-embarrassed",":-[",   ":[",   ":-$", ":$", NULL);
 289         empathy_smiley_manager_add (manager, "face-kiss",       ":-*",   ":*",   NULL);
 290         empathy_smiley_manager_add (manager, "face-monkey",     ":-(|)", ":(|)", NULL);
 291         empathy_smiley_manager_add (manager, "face-plain",      ":-|",   ":|",   NULL);
 292         empathy_smiley_manager_add (manager, "face-raspberry",  ":-P",   ":P",   ":-p", ":p", NULL);
 293         empathy_smiley_manager_add (manager, "face-sad",        ":-(",   ":(",   NULL);
 294         empathy_smiley_manager_add (manager, "face-smile",      ":-)",   ":)",   NULL);
 295         empathy_smiley_manager_add (manager, "face-smile-big",  ":-D",   ":D",   ":-d", ":d", NULL);
 296         empathy_smiley_manager_add (manager, "face-smirk",      ":-!",   ":!",   NULL);
 297         empathy_smiley_manager_add (manager, "face-surprise",   ":-O",   ":O",   NULL);
 298         empathy_smiley_manager_add (manager, "face-wink",       ";-)",   ";)",   NULL);
 299 }
 300
 301 GSList *
 302 empathy_smiley_manager_parse (EmpathySmileyManager *manager,
 303                               const gchar          *text)
 304 {
 305         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 306         EmpathySmiley            *smiley;
 307         SmileyManagerTree        *cur_tree = priv->tree;
 308         const gchar              *t;
 309         const gchar              *cur_str = text;
 310         GSList                   *smileys = NULL;
 311
 312         g_return_val_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager), NULL);
 313         g_return_val_if_fail (text != NULL, NULL);
 314
 315         for (t = text; *t; t = g_utf8_next_char (t)) {
 316                 SmileyManagerTree *child;
 317                 gunichar           c;
 318
 319                 c = g_utf8_get_char (t);
 320                 child = smiley_manager_tree_find_child (cur_tree, c);
 321
 322                 if (cur_tree == priv->tree) {
 323                         if (child) {
 324                                 if (t > cur_str) {
 325                                         smiley = smiley_new (NULL,
 326                                                              g_strndup (cur_str, t - cur_str),
 327                                                              NULL);
 328                                         smileys = g_slist_prepend (smileys, smiley);
 329                                 }
 330                                 cur_str = t;
 331                                 cur_tree = child;
 332                         }
 333
 334                         continue;
 335                 }
 336
 337                 if (child) {
 338                         cur_tree = child;
 339                         continue;
 340                 }
 341
 342                 smiley = smiley_new (cur_tree->pixbuf,
 343                                      g_strndup (cur_str, t - cur_str),
 344                                      cur_tree->path);
 345                 smileys = g_slist_prepend (smileys, smiley);
 346                 if (cur_tree->pixbuf) {
 347                         cur_str = t;
 348                         cur_tree = smiley_manager_tree_find_child (priv->tree, c);
 349
 350                         if (!cur_tree) {
 351                                 cur_tree = priv->tree;
 352                         }
 353                 } else {
 354                         cur_str = t;
 355                         cur_tree = priv->tree;
 356                 }
 357         }
 358
 359         smiley = smiley_new (cur_tree->pixbuf,
 360                              g_strndup (cur_str, t - cur_str),
 361                              cur_tree->path);
 362         smileys = g_slist_prepend (smileys, smiley);
 363
 364         return g_slist_reverse (smileys);
 365 }
 366
 367 GSList *
 368 empathy_smiley_manager_get_all (EmpathySmileyManager *manager)
 369 {
 370         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 371
 372         return priv->smileys;
 373 }
 374
 375 typedef struct {
 376         EmpathySmileyManager *manager;
 377         EmpathySmiley        *smiley;
 378         EmpathySmileyMenuFunc func;
 379         gpointer              user_data;
 380 } ActivateData;
 381
 382 static void
 383 smiley_menu_data_free (gpointer  user_data,
 384                        GClosure *closure)
 385 {
 386         ActivateData *data = (ActivateData *) user_data;
 387
 388         g_object_unref (data->manager);
 389         g_slice_free (ActivateData, data);
 390 }
 391
 392 static void
 393 smiley_menu_activate_cb (GtkMenuItem *menuitem,
 394                          gpointer     user_data)
 395 {
 396         ActivateData *data = (ActivateData *) user_data;
 397
 398         data->func (data->manager, data->smiley, data->user_data);
 399 }
 400
 401 GtkWidget *
 402 empathy_smiley_menu_new (EmpathySmileyManager *manager,
 403                          EmpathySmileyMenuFunc func,
 404                          gpointer              user_data)
 405 {
 406         EmpathySmileyManagerPriv *priv = GET_PRIV (manager);
 407         GSList                   *l;
 408         GtkWidget                *menu;
 409         gint                      x = 0;
 410         gint                      y = 0;
 411
 412         g_return_val_if_fail (EMPATHY_IS_SMILEY_MANAGER (manager), NULL);
 413         g_return_val_if_fail (func != NULL, NULL);
 414
 415         menu = gtk_menu_new ();
 416
 417         for (l = priv->smileys; l; l = l->next) {
 418                 EmpathySmiley *smiley;
 419                 GtkWidget     *item;
 420                 GtkWidget     *image;
 421                 ActivateData  *data;
 422
 423                 smiley = l->data;
 424                 image = gtk_image_new_from_pixbuf (smiley->pixbuf);
 425
 426                 item = gtk_image_menu_item_new_with_label ("");
 427                 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
 428                 gtk_image_menu_item_set_always_show_image (GTK_IMAGE_MENU_ITEM (item), TRUE);
 429
 430                 gtk_menu_attach (GTK_MENU (menu), item,
 431                                  x, x + 1, y, y + 1);
 432
 433                 gtk_widget_set_tooltip_text (item, smiley->str);
 434
 435                 data = g_slice_new (ActivateData);
 436                 data->manager = g_object_ref (manager);
 437                 data->smiley = smiley;
 438                 data->func = func;
 439                 data->user_data = user_data;
 440
 441                 g_signal_connect_data (item, "activate",
 442                                        G_CALLBACK (smiley_menu_activate_cb),
 443                                        data,
 444                                        smiley_menu_data_free,
 445                                        0);
 446
 447                 if (x > 3) {
 448                         y++;
 449                         x = 0;
 450                 } else {
 451                         x++;
 452                 }
 453         }
 454
 455         gtk_widget_show_all (menu);
 456
 457         return menu;
 458 }
 459