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