Pileus Git - ~andy/gtk/blob - gtk/gtkbuilder.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1998-2002 James Henstridge <james@daa.com.au>
   3  * Copyright (C) 2006-2007 Async Open Source,
   4  *                         Johan Dahlin <jdahlin@async.com.br>,
   5  *                         Henrique Romano <henrique@async.com.br>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 #include "config.h"
  24 #include <errno.h> /* errno */
  25 #include <stdlib.h> /* strtol, strtoul */
  26 #include <string.h> /* strlen */
  27
  28 #include "gtkbuilder.h"
  29 #include "gtkbuildable.h"
  30 #include "gtkbuilderprivate.h"
  31 #include "gtkmain.h"
  32 #include "gtkintl.h"
  33 #include "gtkprivate.h"
  34 #include "gtktypebuiltins.h"
  35 #include "gtkwindow.h"
  36 #include "gtkicontheme.h"
  37 #include "gtkstock.h"
  38 #include "gtkalias.h"
  39
  40 static void gtk_builder_class_init     (GtkBuilderClass *klass);
  41 static void gtk_builder_init           (GtkBuilder      *builder);
  42 static void gtk_builder_finalize       (GObject         *object);
  43 static void gtk_builder_set_property   (GObject         *object,
  44                                         guint            prop_id,
  45                                         const GValue    *value,
  46                                         GParamSpec      *pspec);
  47 static void gtk_builder_get_property   (GObject         *object,
  48                                         guint            prop_id,
  49                                         GValue          *value,
  50                                         GParamSpec      *pspec);
  51 static GType gtk_builder_real_get_type_from_name (GtkBuilder  *builder,
  52                                                   const gchar *type_name);
  53
  54 enum {
  55   PROP_0,
  56   PROP_TRANSLATION_DOMAIN,
  57 };
  58
  59 struct _GtkBuilderPrivate
  60 {
  61   gchar *domain;
  62   GHashTable *objects;
  63   GSList *delayed_properties;
  64   GSList *signals;
  65   gchar *filename;
  66 };
  67
  68 G_DEFINE_TYPE (GtkBuilder, gtk_builder, G_TYPE_OBJECT)
  69
  70 static void
  71 gtk_builder_class_init (GtkBuilderClass *klass)
  72 {
  73   GObjectClass *gobject_class;
  74
  75   gobject_class = G_OBJECT_CLASS (klass);
  76
  77   gobject_class->finalize = gtk_builder_finalize;
  78   gobject_class->set_property = gtk_builder_set_property;
  79   gobject_class->get_property = gtk_builder_get_property;
  80
  81   klass->get_type_from_name = gtk_builder_real_get_type_from_name;
  82
  83  /**
  84   * GtkBuilder:translation-domain:
  85   *
  86   * The translation domain used when translating property values that
  87   * have been marked as translatable in interface descriptions.
  88   * If the translation domain is %NULL, #GtkBuilder uses gettext(),
  89   * otherwise g_dgettext().
  90   *
  91   * Since: 2.12
  92   */
  93   g_object_class_install_property (gobject_class,
  94                                    PROP_TRANSLATION_DOMAIN,
  95                                    g_param_spec_string ("translation-domain",
  96                                                         P_("Translation Domain"),
  97                                                         P_("The translation domain used by gettext"),
  98                                                         NULL,
  99                                                         GTK_PARAM_READWRITE));
 100
 101   g_type_class_add_private (gobject_class, sizeof (GtkBuilderPrivate));
 102 }
 103
 104 static void
 105 gtk_builder_init (GtkBuilder *builder)
 106 {
 107   builder->priv = G_TYPE_INSTANCE_GET_PRIVATE (builder, GTK_TYPE_BUILDER,
 108                                                GtkBuilderPrivate);
 109   builder->priv->domain = NULL;
 110   builder->priv->objects = g_hash_table_new_full (g_str_hash, g_str_equal,
 111                                                   g_free, g_object_unref);
 112 }
 113
 114
 115 /*
 116  * GObject virtual methods
 117  */
 118
 119 static void
 120 gtk_builder_finalize (GObject *object)
 121 {
 122   GtkBuilderPrivate *priv = GTK_BUILDER (object)->priv;
 123
 124   g_free (priv->domain);
 125   g_free (priv->filename);
 126
 127   g_hash_table_destroy (priv->objects);
 128
 129   g_slist_foreach (priv->signals, (GFunc) _free_signal_info, NULL);
 130   g_slist_free (priv->signals);
 131
 132   G_OBJECT_CLASS (gtk_builder_parent_class)->finalize (object);
 133 }
 134
 135 static void
 136 gtk_builder_set_property (GObject      *object,
 137                           guint         prop_id,
 138                           const GValue *value,
 139                           GParamSpec   *pspec)
 140 {
 141   GtkBuilder *builder = GTK_BUILDER (object);
 142
 143   switch (prop_id)
 144     {
 145     case PROP_TRANSLATION_DOMAIN:
 146       gtk_builder_set_translation_domain (builder, g_value_get_string (value));
 147       break;
 148     default:
 149       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 150       break;
 151     }
 152 }
 153
 154 static void
 155 gtk_builder_get_property (GObject    *object,
 156                           guint       prop_id,
 157                           GValue     *value,
 158                           GParamSpec *pspec)
 159 {
 160   GtkBuilder *builder = GTK_BUILDER (object);
 161
 162   switch (prop_id)
 163     {
 164     case PROP_TRANSLATION_DOMAIN:
 165       g_value_set_string (value, builder->priv->domain);
 166       break;
 167     default:
 168       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 169       break;
 170     }
 171 }
 172
 173
 174 /*
 175  * Try to map a type name to a _get_type function
 176  * and call it, eg:
 177  *
 178  * GtkWindow -> gtk_window_get_type
 179  * GtkHBox -> gtk_hbox_get_type
 180  * GtkUIManager -> gtk_ui_manager_get_type
 181  *
 182  */
 183 static GType
 184 _gtk_builder_resolve_type_lazily (const gchar *name)
 185 {
 186   static GModule *module = NULL;
 187   GTypeGetFunc func;
 188   GString *symbol_name = g_string_new ("");
 189   char c, *symbol;
 190   int i;
 191   GType gtype = G_TYPE_INVALID;
 192
 193   if (!module)
 194     module = g_module_open (NULL, 0);
 195
 196   for (i = 0; name[i] != '\0'; i++)
 197     {
 198       c = name[i];
 199       /* skip if uppercase, first or previous is uppercase */
 200       if ((c == g_ascii_toupper (c) &&
 201            i > 0 && name[i-1] != g_ascii_toupper (name[i-1])) ||
 202           (i > 2 && name[i]   == g_ascii_toupper (name[i]) &&
 203            name[i-1] == g_ascii_toupper (name[i-1]) &&
 204            name[i-2] == g_ascii_toupper (name[i-2])))
 205         g_string_append_c (symbol_name, '_');
 206       g_string_append_c (symbol_name, g_ascii_tolower (c));
 207     }
 208   g_string_append (symbol_name, "_get_type");
 209
 210   symbol = g_string_free (symbol_name, FALSE);
 211
 212   if (g_module_symbol (module, symbol, (gpointer)&func))
 213     gtype = func ();
 214
 215   g_free (symbol);
 216
 217   return gtype;
 218 }
 219
 220 /*
 221  * GtkBuilder virtual methods
 222  */
 223
 224 static GType
 225 gtk_builder_real_get_type_from_name (GtkBuilder  *builder,
 226                                      const gchar *type_name)
 227 {
 228   GType gtype;
 229
 230   gtype = g_type_from_name (type_name);
 231   if (gtype != G_TYPE_INVALID)
 232     return gtype;
 233
 234   return _gtk_builder_resolve_type_lazily (type_name);
 235 }
 236
 237 typedef struct
 238 {
 239   gchar *object;
 240   gchar *name;
 241   gchar *value;
 242 } DelayedProperty;
 243
 244 static void
 245 gtk_builder_get_parameters (GtkBuilder  *builder,
 246                             GType        object_type,
 247                             const gchar *object_name,
 248                             GSList      *properties,
 249                             GArray      **parameters,
 250                             GArray      **construct_parameters)
 251 {
 252   GSList *l;
 253   GParamSpec *pspec;
 254   GObjectClass *oclass;
 255   DelayedProperty *property;
 256   GError *error = NULL;
 257
 258   oclass = g_type_class_ref (object_type);
 259   g_assert (oclass != NULL);
 260
 261   *parameters = g_array_new (FALSE, FALSE, sizeof (GParameter));
 262   *construct_parameters = g_array_new (FALSE, FALSE, sizeof (GParameter));
 263
 264   for (l = properties; l; l = l->next)
 265     {
 266       PropertyInfo *prop = (PropertyInfo*)l->data;
 267       GParameter parameter = { NULL };
 268
 269       pspec = g_object_class_find_property (G_OBJECT_CLASS (oclass),
 270                                             prop->name);
 271       if (!pspec)
 272         {
 273           g_warning ("Unknown property: %s.%s",
 274                      g_type_name (object_type), prop->name);
 275           continue;
 276         }
 277
 278       parameter.name = prop->name;
 279
 280       if (G_IS_PARAM_SPEC_OBJECT (pspec) &&
 281           (G_PARAM_SPEC_VALUE_TYPE (pspec) != GDK_TYPE_PIXBUF))
 282         {
 283           if (pspec->flags & G_PARAM_CONSTRUCT_ONLY)
 284             {
 285               GObject *object;
 286               object = gtk_builder_get_object (builder, prop->data);
 287               if (!object)
 288                 {
 289                   g_warning ("Failed to get constuct only property "
 290                              "%s of %s with value `%s'",
 291                              prop->name, object_name, prop->data);
 292                   continue;
 293                 }
 294               g_value_init (&parameter.value, G_OBJECT_TYPE (object));
 295               g_value_set_object (&parameter.value, object);
 296             }
 297           else
 298             {
 299               property = g_slice_new (DelayedProperty);
 300               property->object = g_strdup (object_name);
 301               property->name = g_strdup (prop->name);
 302               property->value = g_strdup (prop->data);
 303               builder->priv->delayed_properties =
 304                 g_slist_prepend (builder->priv->delayed_properties, property);
 305
 306               continue;
 307             }
 308         }
 309       else if (!gtk_builder_value_from_string (builder, pspec,
 310                                                prop->data, &parameter.value, &error))
 311         {
 312           g_warning ("Failed to set property %s.%s to %s: %s",
 313                      g_type_name (object_type), prop->name, prop->data,
 314                      error->message);
 315           g_error_free (error);
 316           error = NULL;
 317           continue;
 318         }
 319
 320       if (pspec->flags & G_PARAM_CONSTRUCT_ONLY)
 321         g_array_append_val (*construct_parameters, parameter);
 322       else
 323         g_array_append_val (*parameters, parameter);
 324     }
 325
 326   g_type_class_unref (oclass);
 327 }
 328
 329 static GObject *
 330 gtk_builder_get_internal_child (GtkBuilder  *builder,
 331                                 ObjectInfo  *info,
 332                                 const gchar *childname,
 333                                 GError      **error)
 334 {
 335   GObject *obj = NULL;
 336
 337   while (!obj)
 338     {
 339       if (!info->parent)
 340         break;
 341
 342       info = (ObjectInfo*)((ChildInfo*)info->parent)->parent;
 343       if (!info)
 344         break;
 345
 346       GTK_NOTE (BUILDER,
 347                 g_print ("Trying to get internal child %s from %s\n",
 348                          childname,
 349                          gtk_buildable_get_name (GTK_BUILDABLE (info->object))));
 350
 351       if (GTK_IS_BUILDABLE (info->object))
 352           obj = gtk_buildable_get_internal_child (GTK_BUILDABLE (info->object),
 353                                                   builder,
 354                                                   childname);
 355     };
 356
 357   if (!obj)
 358     {
 359       g_set_error (error,
 360                    GTK_BUILDER_ERROR,
 361                    GTK_BUILDER_ERROR_INVALID_VALUE,
 362                    "Unknown internal child: %s", childname);
 363     }
 364   return obj;
 365 }
 366
 367 GObject *
 368 _gtk_builder_construct (GtkBuilder *builder,
 369                         ObjectInfo *info,
 370                         GError **error)
 371 {
 372   GArray *parameters, *construct_parameters;
 373   GType object_type;
 374   GObject *obj;
 375   int i;
 376   GtkBuildableIface *iface;
 377   gboolean custom_set_property;
 378   GtkBuildable *buildable;
 379
 380   g_assert (info->class_name != NULL);
 381   object_type = gtk_builder_get_type_from_name (builder, info->class_name);
 382   if (object_type == G_TYPE_INVALID)
 383     {
 384       g_set_error (error,
 385                    GTK_BUILDER_ERROR,
 386                    GTK_BUILDER_ERROR_INVALID_VALUE,
 387                    "Invalid object type `%s'",
 388                    info->class_name);
 389       return NULL;
 390     }
 391
 392   gtk_builder_get_parameters (builder, object_type,
 393                               info->id,
 394                               info->properties,
 395                               &parameters,
 396                               &construct_parameters);
 397
 398   if (info->constructor)
 399     {
 400       GObject *constructor;
 401
 402       constructor = gtk_builder_get_object (builder, info->constructor);
 403       if (constructor == NULL)
 404         {
 405           g_set_error (error,
 406                        GTK_BUILDER_ERROR,
 407                        GTK_BUILDER_ERROR_INVALID_VALUE,
 408                        "Unknown object constructor for %s: %s",
 409                        info->id,
 410                        info->constructor);
 411           g_array_free (parameters, TRUE);
 412           g_array_free (construct_parameters, TRUE);
 413           return NULL;
 414         }
 415       obj = gtk_buildable_construct_child (GTK_BUILDABLE (constructor),
 416                                            builder,
 417                                            info->id);
 418       g_assert (obj != NULL);
 419       if (construct_parameters->len)
 420         g_warning ("Can't pass in construct-only parameters to %s", info->id);
 421     }
 422   else if (info->parent && ((ChildInfo*)info->parent)->internal_child != NULL)
 423     {
 424       gchar *childname = ((ChildInfo*)info->parent)->internal_child;
 425       obj = gtk_builder_get_internal_child (builder, info, childname, error);
 426       if (!obj)
 427         {
 428           g_array_free (parameters, TRUE);
 429           g_array_free (construct_parameters, TRUE);
 430           return NULL;
 431         }
 432       if (construct_parameters->len)
 433         g_warning ("Can't pass in construct-only parameters to %s", childname);
 434       g_object_ref (obj);
 435     }
 436   else
 437     {
 438       obj = g_object_newv (object_type,
 439                            construct_parameters->len,
 440                            (GParameter *)construct_parameters->data);
 441
 442       /* No matter what, make sure we have a reference.
 443        *
 444        * If it's an initially unowned object, sink it.
 445        * If it's not initially unowned then we have the reference already.
 446        *
 447        * In the case that this is a window it will be sunk already and
 448        * this is effectively a call to g_object_ref().  That's what
 449        * we want.
 450        */
 451       if (G_IS_INITIALLY_UNOWNED (obj))
 452         g_object_ref_sink (obj);
 453
 454       GTK_NOTE (BUILDER,
 455                 g_print ("created %s of type %s\n", info->id, info->class_name));
 456
 457       for (i = 0; i < construct_parameters->len; i++)
 458         {
 459           GParameter *param = &g_array_index (construct_parameters,
 460                                               GParameter, i);
 461           g_value_unset (&param->value);
 462         }
 463     }
 464   g_array_free (construct_parameters, TRUE);
 465
 466   custom_set_property = FALSE;
 467   buildable = NULL;
 468   iface = NULL;
 469   if (GTK_IS_BUILDABLE (obj))
 470     {
 471       buildable = GTK_BUILDABLE (obj);
 472       iface = GTK_BUILDABLE_GET_IFACE (obj);
 473       if (iface->set_buildable_property)
 474         custom_set_property = TRUE;
 475     }
 476
 477   for (i = 0; i < parameters->len; i++)
 478     {
 479       GParameter *param = &g_array_index (parameters, GParameter, i);
 480       if (custom_set_property)
 481         iface->set_buildable_property (buildable, builder, param->name, &param->value);
 482       else
 483         g_object_set_property (obj, param->name, &param->value);
 484
 485 #if G_ENABLE_DEBUG
 486       if (gtk_debug_flags & GTK_DEBUG_BUILDER)
 487         {
 488           gchar *str = g_strdup_value_contents ((const GValue*)&param->value);
 489           g_print ("set %s: %s = %s\n", info->id, param->name, str);
 490           g_free (str);
 491         }
 492 #endif
 493       g_value_unset (&param->value);
 494     }
 495   g_array_free (parameters, TRUE);
 496
 497   if (GTK_IS_BUILDABLE (obj))
 498     gtk_buildable_set_name (buildable, info->id);
 499   else
 500     g_object_set_data_full (obj,
 501                             "gtk-builder-name",
 502                             g_strdup (info->id),
 503                             g_free);
 504
 505   /* we already own a reference to obj.  put it in the hash table. */
 506   g_hash_table_insert (builder->priv->objects, g_strdup (info->id), obj);
 507
 508   return obj;
 509 }
 510
 511
 512 void
 513 _gtk_builder_add (GtkBuilder *builder,
 514                   ChildInfo  *child_info)
 515 {
 516   GObject *object;
 517   GObject *parent;
 518
 519   /* Internal children are already added
 520    * Also prevent us from being called twice.
 521    */
 522   if (!child_info ||
 523       child_info->internal_child ||
 524       child_info->added)
 525     return;
 526
 527   object = child_info->object;
 528   if (!object)
 529     return;
 530
 531   if (!child_info->parent)
 532     {
 533       g_warning ("%s: Not adding, No parent",
 534                  gtk_buildable_get_name (GTK_BUILDABLE (object)));
 535       return;
 536     }
 537
 538   g_assert (object != NULL);
 539
 540   parent = ((ObjectInfo*)child_info->parent)->object;
 541   g_assert (GTK_IS_BUILDABLE (parent));
 542
 543   GTK_NOTE (BUILDER,
 544             g_print ("adding %s to %s\n",
 545                      gtk_buildable_get_name (GTK_BUILDABLE (object)),
 546                      gtk_buildable_get_name (GTK_BUILDABLE (parent))));
 547
 548   gtk_buildable_add_child (GTK_BUILDABLE (parent), builder, object,
 549                            child_info->type);
 550
 551   child_info->added = TRUE;
 552 }
 553
 554 void
 555 _gtk_builder_add_signals (GtkBuilder *builder,
 556                           GSList     *signals)
 557 {
 558   builder->priv->signals = g_slist_concat (builder->priv->signals,
 559                                            g_slist_copy (signals));
 560 }
 561
 562 static void
 563 gtk_builder_apply_delayed_properties (GtkBuilder *builder)
 564 {
 565   GSList *l, *props;
 566   DelayedProperty *property;
 567   GObject *object;
 568   GType object_type;
 569   GObjectClass *oclass;
 570   GParamSpec *pspec;
 571
 572   /* take the list over from the builder->priv.
 573    *
 574    * g_slist_reverse does not copy the list, so the list now
 575    * belongs to us (and we free it at the end of this function).
 576    */
 577   props = g_slist_reverse (builder->priv->delayed_properties);
 578   builder->priv->delayed_properties = NULL;
 579
 580   for (l = props; l; l = l->next)
 581     {
 582       property = (DelayedProperty*)l->data;
 583       object = g_hash_table_lookup (builder->priv->objects, property->object);
 584       g_assert (object != NULL);
 585
 586       object_type = G_OBJECT_TYPE (object);
 587       g_assert (object_type != G_TYPE_INVALID);
 588
 589       oclass = g_type_class_ref (object_type);
 590       g_assert (oclass != NULL);
 591
 592       pspec = g_object_class_find_property (G_OBJECT_CLASS (oclass),
 593                                             property->name);
 594       if (!pspec)
 595         g_warning ("Unknown property: %s.%s", g_type_name (object_type),
 596                    property->name);
 597       else
 598         {
 599           GObject *obj;
 600
 601           obj = g_hash_table_lookup (builder->priv->objects, property->value);
 602           if (!obj)
 603             g_warning ("No object called: %s", property->value);
 604           else
 605             g_object_set (object, property->name, obj, NULL);
 606         }
 607       g_free (property->value);
 608       g_free (property->object);
 609       g_free (property->name);
 610       g_slice_free (DelayedProperty, property);
 611       g_type_class_unref (oclass);
 612     }
 613   g_slist_free (props);
 614 }
 615
 616 void
 617 _gtk_builder_finish (GtkBuilder *builder)
 618 {
 619   gtk_builder_apply_delayed_properties (builder);
 620 }
 621
 622 /**
 623  * gtk_builder_new:
 624  *
 625  * Creates a new builder object.
 626  *
 627  * Return value: a new #GtkBuilder object
 628  *
 629  * Since: 2.12
 630  **/
 631 GtkBuilder *
 632 gtk_builder_new (void)
 633 {
 634   return g_object_new (GTK_TYPE_BUILDER, NULL);
 635 }
 636
 637 /**
 638  * gtk_builder_add_from_file:
 639  * @builder: a #GtkBuilder
 640  * @filename: the name of the file to parse
 641  * @error: return location for an error, or %NULL
 642  *
 643  * Parses a file containing a <link linkend="BUILDER-UI">GtkBuilder
 644  * UI definition</link> and merges it with the current contents of @builder.
 645  *
 646  * Returns: A positive value on success, 0 if an error occurred
 647  *
 648  * Since: 2.12
 649  **/
 650 guint
 651 gtk_builder_add_from_file (GtkBuilder   *builder,
 652                            const gchar  *filename,
 653                            GError      **error)
 654 {
 655   gchar *buffer;
 656   gsize length;
 657   GError *tmp_error;
 658
 659   g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
 660   g_return_val_if_fail (filename != NULL, 0);
 661   g_return_val_if_fail (error == NULL || *error == NULL, 0);
 662
 663   tmp_error = NULL;
 664
 665   if (!g_file_get_contents (filename, &buffer, &length, &tmp_error))
 666     {
 667       g_propagate_error (error, tmp_error);
 668       return 0;
 669     }
 670
 671   g_free (builder->priv->filename);
 672   builder->priv->filename = g_strdup (filename);
 673
 674   _gtk_builder_parser_parse_buffer (builder, filename,
 675                                     buffer, length,
 676                                     NULL,
 677                                     &tmp_error);
 678
 679   g_free (buffer);
 680
 681   if (tmp_error != NULL)
 682     {
 683       g_propagate_error (error, tmp_error);
 684       return 0;
 685     }
 686
 687   return 1;
 688 }
 689
 690 /**
 691  * gtk_builder_add_objects_from_file:
 692  * @builder: a #GtkBuilder
 693  * @filename: the name of the file to parse
 694  * @object_ids: nul-terminated array of objects to build
 695  * @error: return location for an error, or %NULL
 696  *
 697  * Parses a file containing a <link linkend="BUILDER-UI">GtkBuilder
 698  * UI definition</link> building only the requested objects and merges
 699  * them with the current contents of @builder.
 700  *
 701  * <note><para>
 702  * If you are adding an object that depends on an object that is not
 703  * its child (for instance a #GtkTreeView that depends on its
 704  * #GtkTreeModel), you have to explicitely list all of them in @object_ids.
 705  * </para></note>
 706  *
 707  * Returns: A positive value on success, 0 if an error occurred
 708  *
 709  * Since: 2.14
 710  **/
 711 guint
 712 gtk_builder_add_objects_from_file (GtkBuilder   *builder,
 713                                    const gchar  *filename,
 714                                    gchar       **object_ids,
 715                                    GError      **error)
 716 {
 717   gchar *buffer;
 718   gsize length;
 719   GError *tmp_error;
 720
 721   g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
 722   g_return_val_if_fail (filename != NULL, 0);
 723   g_return_val_if_fail (object_ids != NULL && object_ids[0] != NULL, 0);
 724   g_return_val_if_fail (error == NULL || *error == NULL, 0);
 725
 726   tmp_error = NULL;
 727
 728   if (!g_file_get_contents (filename, &buffer, &length, &tmp_error))
 729     {
 730       g_propagate_error (error, tmp_error);
 731       return 0;
 732     }
 733
 734   g_free (builder->priv->filename);
 735   builder->priv->filename = g_strdup (filename);
 736
 737   _gtk_builder_parser_parse_buffer (builder, filename,
 738                                     buffer, length,
 739                                     object_ids,
 740                                     &tmp_error);
 741
 742   g_free (buffer);
 743
 744   if (tmp_error != NULL)
 745     {
 746       g_propagate_error (error, tmp_error);
 747       return 0;
 748     }
 749
 750   return 1;
 751 }
 752
 753 /**
 754  * gtk_builder_add_from_string:
 755  * @builder: a #GtkBuilder
 756  * @buffer: the string to parse
 757  * @length: the length of @buffer (may be -1 if @buffer is nul-terminated)
 758  * @error: return location for an error, or %NULL
 759  *
 760  * Parses a string containing a <link linkend="BUILDER-UI">GtkBuilder
 761  * UI definition</link> and merges it with the current contents of @builder.
 762  *
 763  * Returns: A positive value on success, 0 if an error occurred
 764  *
 765  * Since: 2.12
 766  **/
 767 guint
 768 gtk_builder_add_from_string (GtkBuilder   *builder,
 769                              const gchar  *buffer,
 770                              gsize         length,
 771                              GError      **error)
 772 {
 773   GError *tmp_error;
 774
 775   g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
 776   g_return_val_if_fail (buffer != NULL, 0);
 777   g_return_val_if_fail (error == NULL || *error == NULL, 0);
 778
 779   tmp_error = NULL;
 780
 781   g_free (builder->priv->filename);
 782   builder->priv->filename = g_strdup (".");
 783
 784   _gtk_builder_parser_parse_buffer (builder, "<input>",
 785                                     buffer, length,
 786                                     NULL,
 787                                     &tmp_error);
 788   if (tmp_error != NULL)
 789     {
 790       g_propagate_error (error, tmp_error);
 791       return 0;
 792     }
 793
 794   return 1;
 795 }
 796
 797 /**
 798  * gtk_builder_add_objects_from_string:
 799  * @builder: a #GtkBuilder
 800  * @buffer: the string to parse
 801  * @length: the length of @buffer (may be -1 if @buffer is nul-terminated)
 802  * @object_ids: nul-terminated array of objects to build
 803  * @error: return location for an error, or %NULL
 804  *
 805  * Parses a string containing a <link linkend="BUILDER-UI">GtkBuilder
 806  * UI definition</link> building only the requested objects and merges
 807  * them with the current contents of @builder.
 808  *
 809  * <note><para>
 810  * If you are adding an object that depends on an object that is not
 811  * its child (for instance a #GtkTreeView that depends on its
 812  * #GtkTreeModel), you have to explicitely list all of them in @object_ids.
 813  * </para></note>
 814  *
 815  * Returns: A positive value on success, 0 if an error occurred
 816  *
 817  * Since: 2.14
 818  **/
 819 guint
 820 gtk_builder_add_objects_from_string (GtkBuilder   *builder,
 821                                      const gchar  *buffer,
 822                                      gsize         length,
 823                                      gchar       **object_ids,
 824                                      GError      **error)
 825 {
 826   GError *tmp_error;
 827
 828   g_return_val_if_fail (GTK_IS_BUILDER (builder), 0);
 829   g_return_val_if_fail (buffer != NULL, 0);
 830   g_return_val_if_fail (object_ids != NULL && object_ids[0] != NULL, 0);
 831   g_return_val_if_fail (error == NULL || *error == NULL, 0);
 832
 833   tmp_error = NULL;
 834
 835   g_free (builder->priv->filename);
 836   builder->priv->filename = g_strdup (".");
 837
 838   _gtk_builder_parser_parse_buffer (builder, "<input>",
 839                                     buffer, length,
 840                                     object_ids,
 841                                     &tmp_error);
 842
 843   if (tmp_error != NULL)
 844     {
 845       g_propagate_error (error, tmp_error);
 846       return 0;
 847     }
 848
 849   return 1;
 850 }
 851
 852 /**
 853  * gtk_builder_get_object:
 854  * @builder: a #GtkBuilder
 855  * @name: name of object to get
 856  *
 857  * Gets the object named @name. Note that this function does not
 858  * increment the reference count of the returned object.
 859  *
 860  * Return value: the object named @name or %NULL if it could not be
 861  *    found in the object tree.
 862  *
 863  * Since: 2.12
 864  **/
 865 GObject *
 866 gtk_builder_get_object (GtkBuilder  *builder,
 867                         const gchar *name)
 868 {
 869   g_return_val_if_fail (GTK_IS_BUILDER (builder), NULL);
 870   g_return_val_if_fail (name != NULL, NULL);
 871
 872   return g_hash_table_lookup (builder->priv->objects, name);
 873 }
 874
 875 static void
 876 object_add_to_list (gchar    *object_id,
 877                     GObject  *object,
 878                     GSList  **list)
 879 {
 880   *list = g_slist_prepend (*list, object);
 881 }
 882
 883 /**
 884  * gtk_builder_get_objects:
 885  * @builder: a #GtkBuilder
 886  *
 887  * Gets all objects that have been constructed by @builder. Note that
 888  * this function does not increment the reference counts of the returned
 889  * objects.
 890  *
 891  * Return value: a newly-allocated #GSList containing all the objects
 892  *   constructed by the #GtkBuilder instance. It should be freed by
 893  *   g_slist_free()
 894  *
 895  * Since: 2.12
 896  **/
 897 GSList *
 898 gtk_builder_get_objects (GtkBuilder *builder)
 899 {
 900   GSList *objects = NULL;
 901
 902   g_return_val_if_fail (GTK_IS_BUILDER (builder), NULL);
 903
 904   g_hash_table_foreach (builder->priv->objects, (GHFunc)object_add_to_list, &objects);
 905
 906   return g_slist_reverse (objects);
 907 }
 908
 909 /**
 910  * gtk_builder_set_translation_domain:
 911  * @builder: a #GtkBuilder
 912  * @domain: the translation domain or %NULL
 913  *
 914  * Sets the translation domain of @builder.
 915  * See #GtkBuilder:translation-domain.
 916  *
 917  * Since: 2.12
 918  **/
 919 void
 920 gtk_builder_set_translation_domain (GtkBuilder  *builder,
 921                                     const gchar *domain)
 922 {
 923   gchar *new_domain;
 924
 925   g_return_if_fail (GTK_IS_BUILDER (builder));
 926
 927   new_domain = g_strdup (domain);
 928   g_free (builder->priv->domain);
 929   builder->priv->domain = new_domain;
 930
 931   g_object_notify (G_OBJECT (builder), "translation-domain");
 932 }
 933
 934 /**
 935  * gtk_builder_get_translation_domain:
 936  * @builder: a #GtkBuilder
 937  *
 938  * Gets the translation domain of @builder.
 939  *
 940  * Return value: the translation domain. This string is owned
 941  * by the builder object and must not be modified or freed.
 942  *
 943  * Since: 2.12
 944  **/
 945 const gchar *
 946 gtk_builder_get_translation_domain (GtkBuilder *builder)
 947 {
 948   g_return_val_if_fail (GTK_IS_BUILDER (builder), NULL);
 949
 950   return builder->priv->domain;
 951 }
 952
 953 typedef struct {
 954   GModule *module;
 955   gpointer data;
 956 } connect_args;
 957
 958 static void
 959 gtk_builder_connect_signals_default (GtkBuilder    *builder,
 960                                      GObject       *object,
 961                                      const gchar   *signal_name,
 962                                      const gchar   *handler_name,
 963                                      GObject       *connect_object,
 964                                      GConnectFlags  flags,
 965                                      gpointer       user_data)
 966 {
 967   GCallback func;
 968   connect_args *args = (connect_args*)user_data;
 969
 970   if (!g_module_symbol (args->module, handler_name, (gpointer)&func))
 971     {
 972       g_warning ("Could not find signal handler '%s'", handler_name);
 973       return;
 974     }
 975
 976   if (connect_object)
 977     g_signal_connect_object (object, signal_name, func, connect_object, flags);
 978   else
 979     g_signal_connect_data (object, signal_name, func, args->data, NULL, flags);
 980 }
 981
 982
 983 /**
 984  * gtk_builder_connect_signals:
 985  * @builder: a #GtkBuilder
 986  * @user_data: a pointer to a structure sent in as user data to all signals
 987  *
 988  * This method is a simpler variation of gtk_builder_connect_signals_full().
 989  * It uses #GModule's introspective features (by opening the module %NULL)
 990  * to look at the application's symbol table. From here it tries to match
 991  * the signal handler names given in the interface description with
 992  * symbols in the application and connects the signals.
 993  *
 994  * Note that this function will not work correctly if #GModule is not
 995  * supported on the platform.
 996  *
 997  * When compiling applications for Windows, you must declare signal callbacks
 998  * with #G_MODULE_EXPORT, or they will not be put in the symbol table.
 999  * On Linux and Unices, this is not necessary; applications should instead
1000  * be compiled with the -Wl,--export-dynamic CFLAGS, and linked against
1001  * gmodule-export-2.0.
1002  *
1003  * Since: 2.12
1004  **/
1005 void
1006 gtk_builder_connect_signals (GtkBuilder *builder,
1007                              gpointer    user_data)
1008 {
1009   connect_args *args;
1010
1011   g_return_if_fail (GTK_IS_BUILDER (builder));
1012
1013   if (!g_module_supported ())
1014     g_error ("gtk_builder_connect_signals() requires working GModule");
1015
1016   args = g_slice_new0 (connect_args);
1017   args->module = g_module_open (NULL, G_MODULE_BIND_LAZY);
1018   args->data = user_data;
1019
1020   gtk_builder_connect_signals_full (builder,
1021                                     gtk_builder_connect_signals_default,
1022                                     args);
1023   g_module_close (args->module);
1024
1025   g_slice_free (connect_args, args);
1026 }
1027
1028 /**
1029  * GtkBuilderConnectFunc:
1030  * @builder: a #GtkBuilder
1031  * @object: object to connect a signal to
1032  * @signal_name: name of the signal
1033  * @handler_name: name of the handler
1034  * @connect_object: a #GObject, if non-%NULL, use g_signal_connect_object()
1035  * @flags: #GConnectFlags to use
1036  * @user_data: user data
1037  *
1038  * This is the signature of a function used to connect signals.  It is used
1039  * by the gtk_builder_connect_signals() and gtk_builder_connect_signals_full()
1040  * methods.  It is mainly intended for interpreted language bindings, but
1041  * could be useful where the programmer wants more control over the signal
1042  * connection process.
1043  *
1044  * Since: 2.12
1045  */
1046
1047 /**
1048  * gtk_builder_connect_signals_full:
1049  * @builder: a #GtkBuilder
1050  * @func: the function used to connect the signals
1051  * @user_data: arbitrary data that will be passed to the connection function
1052  *
1053  * This function can be thought of the interpreted language binding
1054  * version of gtk_builder_connect_signals(), except that it does not
1055  * require GModule to function correctly.
1056  *
1057  * Since: 2.12
1058  */
1059 void
1060 gtk_builder_connect_signals_full (GtkBuilder            *builder,
1061                                   GtkBuilderConnectFunc  func,
1062                                   gpointer               user_data)
1063 {
1064   GSList *l;
1065   GObject *object;
1066   GObject *connect_object;
1067
1068   g_return_if_fail (GTK_IS_BUILDER (builder));
1069   g_return_if_fail (func != NULL);
1070
1071   if (!builder->priv->signals)
1072     return;
1073
1074   builder->priv->signals = g_slist_reverse (builder->priv->signals);
1075   for (l = builder->priv->signals; l; l = l->next)
1076     {
1077       SignalInfo *signal = (SignalInfo*)l->data;
1078
1079       g_assert (signal != NULL);
1080       g_assert (signal->name != NULL);
1081
1082       object = g_hash_table_lookup (builder->priv->objects,
1083                                     signal->object_name);
1084       g_assert (object != NULL);
1085
1086       connect_object = NULL;
1087
1088       if (signal->connect_object_name)
1089         {
1090           connect_object = g_hash_table_lookup (builder->priv->objects,
1091                                                 signal->connect_object_name);
1092           if (!connect_object)
1093               g_warning ("Could not lookup object %s on signal %s of object %s",
1094                          signal->connect_object_name, signal->name,
1095                          signal->object_name);
1096         }
1097
1098       func (builder, object, signal->name, signal->handler,
1099             connect_object, signal->flags, user_data);
1100     }
1101
1102   g_slist_foreach (builder->priv->signals, (GFunc)_free_signal_info, NULL);
1103   g_slist_free (builder->priv->signals);
1104   builder->priv->signals = NULL;
1105 }
1106
1107 /**
1108  * gtk_builder_value_from_string:
1109  * @builder: a #GtkBuilder
1110  * @pspec: the #GParamSpec for the property
1111  * @string: the string representation of the value
1112  * @value: the #GValue to store the result in
1113  * @error: return location for an error, or %NULL
1114  *
1115  * This function demarshals a value from a string. This function
1116  * calls g_value_init() on the @value argument, so it need not be
1117  * initialised beforehand.
1118  *
1119  * This function can handle char, uchar, boolean, int, uint, long,
1120  * ulong, enum, flags, float, double, string, #GdkColor and
1121  * #GtkAdjustment type values. Support for #GtkWidget type values is
1122  * still to come.
1123  *
1124  * Returns: %TRUE on success
1125  *
1126  * Since: 2.12
1127  */
1128 gboolean
1129 gtk_builder_value_from_string (GtkBuilder   *builder,
1130                                GParamSpec   *pspec,
1131                                const gchar  *string,
1132                                GValue       *value,
1133                                GError      **error)
1134 {
1135   g_return_val_if_fail (GTK_IS_BUILDER (builder), FALSE);
1136   g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), FALSE);
1137   g_return_val_if_fail (string != NULL, FALSE);
1138   g_return_val_if_fail (value != NULL, FALSE);
1139   g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
1140
1141   /*
1142    * GParamSpecUnichar has the internal type G_TYPE_UINT,
1143    * so we cannot handle this in the switch, do it separately
1144    */
1145   if (G_IS_PARAM_SPEC_UNICHAR (pspec))
1146     {
1147       gunichar c;
1148       g_value_init (value, G_TYPE_UINT);
1149       c = g_utf8_get_char_validated (string, strlen (string));
1150       if (c > 0)
1151         g_value_set_uint (value, c);
1152       return TRUE;
1153     }
1154
1155   return gtk_builder_value_from_string_type (builder,
1156                                              G_PARAM_SPEC_VALUE_TYPE (pspec),
1157                                              string, value, error);
1158 }
1159
1160 /**
1161  * gtk_builder_value_from_string_type:
1162  * @builder: a #GtkBuilder
1163  * @type: the #GType of the value
1164  * @string: the string representation of the value
1165  * @value: the #GValue to store the result in
1166  * @error: return location for an error, or %NULL
1167  *
1168  * Like gtk_builder_value_from_string(), this function demarshals
1169  * a value from a string, but takes a #GType instead of #GParamSpec.
1170  * This function calls g_value_init() on the @value argument, so it
1171  * need not be initialised beforehand.
1172  *
1173  * Returns: %TRUE on success
1174  *
1175  * Since: 2.12
1176  */
1177 gboolean
1178 gtk_builder_value_from_string_type (GtkBuilder   *builder,
1179                                     GType         type,
1180                                     const gchar  *string,
1181                                     GValue       *value,
1182                                     GError      **error)
1183 {
1184   gboolean ret = TRUE;
1185
1186   g_return_val_if_fail (type != G_TYPE_INVALID, FALSE);
1187   g_return_val_if_fail (string != NULL, FALSE);
1188   g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
1189
1190   g_value_init (value, type);
1191
1192   switch (G_TYPE_FUNDAMENTAL (type))
1193     {
1194     case G_TYPE_CHAR:
1195       g_value_set_char (value, string[0]);
1196       break;
1197     case G_TYPE_UCHAR:
1198       g_value_set_uchar (value, (guchar)string[0]);
1199       break;
1200     case G_TYPE_BOOLEAN:
1201       {
1202         gboolean b;
1203
1204         if (!_gtk_builder_boolean_from_string (string, &b, error))
1205           {
1206             ret = FALSE;
1207             break;
1208           }
1209         g_value_set_boolean (value, b);
1210         break;
1211       }
1212     case G_TYPE_INT:
1213     case G_TYPE_LONG:
1214       {
1215         long l;
1216         gchar *endptr;
1217         errno = 0;
1218         l = strtol (string, &endptr, 0);
1219         if (errno || endptr == string)
1220           {
1221             g_set_error (error,
1222                          GTK_BUILDER_ERROR,
1223                          GTK_BUILDER_ERROR_INVALID_VALUE,
1224                          "Could not parse integer `%s'",
1225                          string);
1226             ret = FALSE;
1227             break;
1228           }
1229         if (G_VALUE_HOLDS_INT (value))
1230           g_value_set_int (value, l);
1231         else
1232           g_value_set_long (value, l);
1233         break;
1234       }
1235     case G_TYPE_UINT:
1236     case G_TYPE_ULONG:
1237       {
1238         gulong ul;
1239         gchar *endptr;
1240         errno = 0;
1241         ul = strtoul (string, &endptr, 0);
1242         if (errno || endptr == string)
1243           {
1244             g_set_error (error,
1245                          GTK_BUILDER_ERROR,
1246                          GTK_BUILDER_ERROR_INVALID_VALUE,
1247                          "Could not parse unsigned integer `%s'",
1248                          string);
1249             ret = FALSE;
1250             break;
1251           }
1252         if (G_VALUE_HOLDS_UINT (value))
1253           g_value_set_uint (value, ul);
1254         else
1255           g_value_set_ulong (value, ul);
1256         break;
1257       }
1258     case G_TYPE_ENUM:
1259       {
1260         gint enum_value;
1261         if (!_gtk_builder_enum_from_string (type, string, &enum_value, error))
1262           {
1263             ret = FALSE;
1264             break;
1265           }
1266         g_value_set_enum (value, enum_value);
1267         break;
1268       }
1269     case G_TYPE_FLAGS:
1270       {
1271         guint flags_value;
1272
1273         if (!_gtk_builder_flags_from_string (type, string, &flags_value, error))
1274           {
1275             ret = FALSE;
1276             break;
1277           }
1278         g_value_set_flags (value, flags_value);
1279         break;
1280       }
1281     case G_TYPE_FLOAT:
1282     case G_TYPE_DOUBLE:
1283       {
1284         gdouble d;
1285         gchar *endptr;
1286         errno = 0;
1287         d = g_ascii_strtod (string, &endptr);
1288         if (errno || endptr == string)
1289           {
1290             g_set_error (error,
1291                          GTK_BUILDER_ERROR,
1292                          GTK_BUILDER_ERROR_INVALID_VALUE,
1293                          "Could not parse double `%s'",
1294                          string);
1295             ret = FALSE;
1296             break;
1297           }
1298         if (G_VALUE_HOLDS_FLOAT (value))
1299           g_value_set_float (value, d);
1300         else
1301           g_value_set_double (value, d);
1302         break;
1303       }
1304     case G_TYPE_STRING:
1305       g_value_set_string (value, string);
1306       break;
1307     case G_TYPE_BOXED:
1308       if (G_VALUE_HOLDS (value, GDK_TYPE_COLOR))
1309         {
1310           GdkColor colour = { 0, };
1311
1312           if (gdk_color_parse (string, &colour) &&
1313               gdk_colormap_alloc_color (gtk_widget_get_default_colormap (),
1314                                         &colour, FALSE, TRUE))
1315             g_value_set_boxed (value, &colour);
1316           else
1317             {
1318               g_set_error (error,
1319                            GTK_BUILDER_ERROR,
1320                            GTK_BUILDER_ERROR_INVALID_VALUE,
1321                            "Could not parse color `%s'",
1322                            string);
1323               ret = FALSE;
1324             }
1325         }
1326       else if (G_VALUE_HOLDS (value, G_TYPE_STRV))
1327         {
1328           gchar **vector = g_strsplit (string, "\n", 0);
1329           g_value_take_boxed (value, vector);
1330         }
1331       else
1332         {
1333           g_set_error (error,
1334                        GTK_BUILDER_ERROR,
1335                        GTK_BUILDER_ERROR_INVALID_VALUE,
1336                        "Could not parse '%s' as a %s",
1337                        string, G_VALUE_TYPE_NAME (value));
1338           ret = FALSE;
1339         }
1340       break;
1341     case G_TYPE_OBJECT:
1342       if (G_VALUE_HOLDS (value, GDK_TYPE_PIXBUF))
1343         {
1344           gchar *filename;
1345           GError *tmp_error = NULL;
1346           GdkPixbuf *pixbuf;
1347
1348           if (gtk_builder_get_object (builder, string))
1349             {
1350               g_set_error (error,
1351                            GTK_BUILDER_ERROR,
1352                            GTK_BUILDER_ERROR_INVALID_VALUE,
1353                            "Could not load image '%s': "
1354                            " '%s' is already used as object id",
1355                            string, string);
1356               return FALSE;
1357             }
1358
1359           filename = _gtk_builder_get_absolute_filename (builder, string);
1360           pixbuf = gdk_pixbuf_new_from_file (filename, &tmp_error);
1361
1362           if (pixbuf == NULL)
1363             {
1364               GtkIconTheme *theme;
1365
1366               g_warning ("Could not load image '%s': %s",
1367                          string, tmp_error->message);
1368               g_error_free (tmp_error);
1369
1370               /* fall back to a missing image */
1371               theme = gtk_icon_theme_get_default ();
1372               pixbuf = gtk_icon_theme_load_icon (theme,
1373                                                  GTK_STOCK_MISSING_IMAGE,
1374                                                  16,
1375                                                  GTK_ICON_LOOKUP_USE_BUILTIN,
1376                                                  NULL);
1377             }
1378
1379           if (pixbuf)
1380             {
1381               g_value_set_object (value, pixbuf);
1382               g_object_unref (G_OBJECT (pixbuf));
1383             }
1384
1385           g_free (filename);
1386
1387           ret = TRUE;
1388         }
1389       else
1390         ret = FALSE;
1391       break;
1392     default:
1393       g_set_error (error,
1394                    GTK_BUILDER_ERROR,
1395                    GTK_BUILDER_ERROR_INVALID_VALUE,
1396                    "Unsupported GType `%s'",
1397                    g_type_name (type));
1398       ret = FALSE;
1399       break;
1400     }
1401
1402   return ret;
1403 }
1404
1405 gboolean
1406 _gtk_builder_enum_from_string (GType         type,
1407                                const gchar  *string,
1408                                gint         *enum_value,
1409                                GError      **error)
1410 {
1411   GEnumClass *eclass;
1412   GEnumValue *ev;
1413   gchar *endptr;
1414   gint value;
1415   gboolean ret;
1416
1417   g_return_val_if_fail (G_TYPE_IS_ENUM (type), FALSE);
1418   g_return_val_if_fail (string != NULL, FALSE);
1419
1420   ret = TRUE;
1421
1422   value = strtoul (string, &endptr, 0);
1423   if (endptr != string) /* parsed a number */
1424     *enum_value = value;
1425   else
1426     {
1427       eclass = g_type_class_ref (type);
1428       ev = g_enum_get_value_by_name (eclass, string);
1429       if (!ev)
1430         ev = g_enum_get_value_by_nick (eclass, string);
1431
1432       if (ev)
1433         *enum_value = ev->value;
1434       else
1435         {
1436           g_set_error (error,
1437                        GTK_BUILDER_ERROR,
1438                        GTK_BUILDER_ERROR_INVALID_VALUE,
1439                        "Could not parse enum: `%s'",
1440                        string);
1441           ret = FALSE;
1442         }
1443
1444       g_type_class_unref (eclass);
1445     }
1446
1447   return ret;
1448 }
1449
1450 gboolean
1451 _gtk_builder_flags_from_string (GType         type,
1452                                 const gchar  *string,
1453                                 guint        *flags_value,
1454                                 GError      **error)
1455 {
1456   GFlagsClass *fclass;
1457   gchar *endptr, *prevptr;
1458   guint i, j, value;
1459   gchar *flagstr;
1460   GFlagsValue *fv;
1461   const gchar *flag;
1462   gunichar ch;
1463   gboolean eos, ret;
1464
1465   g_return_val_if_fail (G_TYPE_IS_FLAGS (type), FALSE);
1466   g_return_val_if_fail (string != 0, FALSE);
1467
1468   ret = TRUE;
1469
1470   value = strtoul (string, &endptr, 0);
1471   if (endptr != string) /* parsed a number */
1472     *flags_value = value;
1473   else
1474     {
1475       fclass = g_type_class_ref (type);
1476
1477       flagstr = g_strdup (string);
1478       for (value = i = j = 0; ; i++)
1479         {
1480
1481           eos = flagstr[i] == '\0';
1482
1483           if (!eos && flagstr[i] != '|')
1484             continue;
1485
1486           flag = &flagstr[j];
1487           endptr = &flagstr[i];
1488
1489           if (!eos)
1490             {
1491               flagstr[i++] = '\0';
1492               j = i;
1493             }
1494
1495           /* trim spaces */
1496           for (;;)
1497             {
1498               ch = g_utf8_get_char (flag);
1499               if (!g_unichar_isspace (ch))
1500                 break;
1501               flag = g_utf8_next_char (flag);
1502             }
1503
1504           while (endptr > flag)
1505             {
1506               prevptr = g_utf8_prev_char (endptr);
1507               ch = g_utf8_get_char (prevptr);
1508               if (!g_unichar_isspace (ch))
1509                 break;
1510               endptr = prevptr;
1511             }
1512
1513           if (endptr > flag)
1514             {
1515               *endptr = '\0';
1516               fv = g_flags_get_value_by_name (fclass, flag);
1517
1518               if (!fv)
1519                 fv = g_flags_get_value_by_nick (fclass, flag);
1520
1521               if (fv)
1522                 value |= fv->value;
1523               else
1524                 {
1525                   g_set_error (error,
1526                                GTK_BUILDER_ERROR,
1527                                GTK_BUILDER_ERROR_INVALID_VALUE,
1528                                "Unknown flag: `%s'",
1529                                flag);
1530                   ret = FALSE;
1531                   break;
1532                 }
1533             }
1534
1535           if (eos)
1536             {
1537               *flags_value = value;
1538               break;
1539             }
1540         }
1541
1542       g_free (flagstr);
1543
1544       g_type_class_unref (fclass);
1545     }
1546
1547   return ret;
1548 }
1549
1550 /**
1551  * gtk_builder_get_type_from_name:
1552  * @builder: a #GtkBuilder
1553  * @type_name: type name to lookup
1554  *
1555  * Looks up a type by name, using the virtual function that
1556  * #GtkBuilder has for that purpose. This is mainly used when
1557  * implementing the #GtkBuildable interface on a type.
1558  *
1559  * Returns: the #GType found for @type_name or #G_TYPE_INVALID
1560  *   if no type was found
1561  *
1562  * Since: 2.12
1563  */
1564 GType
1565 gtk_builder_get_type_from_name (GtkBuilder  *builder,
1566                                 const gchar *type_name)
1567 {
1568   g_return_val_if_fail (GTK_IS_BUILDER (builder), G_TYPE_INVALID);
1569   g_return_val_if_fail (type_name != NULL, G_TYPE_INVALID);
1570
1571   return GTK_BUILDER_GET_CLASS (builder)->get_type_from_name (builder, type_name);
1572 }
1573
1574 GQuark
1575 gtk_builder_error_quark (void)
1576 {
1577   return g_quark_from_static_string ("gtk-builder-error-quark");
1578 }
1579
1580 gchar *
1581 _gtk_builder_get_absolute_filename (GtkBuilder *builder, const gchar *string)
1582 {
1583   gchar *filename;
1584   gchar *dirname = NULL;
1585
1586   if (g_path_is_absolute (string))
1587     return g_strdup (string);
1588
1589   if (builder->priv->filename &&
1590       strcmp (builder->priv->filename, ".") != 0)
1591     {
1592       dirname = g_path_get_dirname (builder->priv->filename);
1593
1594       if (strcmp (dirname, ".") == 0)
1595         {
1596           g_free (dirname);
1597           dirname = g_get_current_dir ();
1598         }
1599     }
1600   else
1601     dirname = g_get_current_dir ();
1602
1603   filename = g_build_filename (dirname, string, NULL);
1604   g_free (dirname);
1605
1606   return filename;
1607 }
1608
1609 #define __GTK_BUILDER_C__
1610 #include "gtkaliasdef.c"