/* gtkbuilderparser.c * Copyright (C) 2006-2007 Async Open Source, * Johan Dahlin * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library. If not, see . */ #include "config.h" #include #include #include #include "gtkbuilderprivate.h" #include "gtkbuilder.h" #include "gtkbuildable.h" #include "gtkdebug.h" #include "gtkversion.h" #include "gtktypebuiltins.h" #include "gtkintl.h" static void free_property_info (PropertyInfo *info); static void free_object_info (ObjectInfo *info); static inline void state_push (ParserData *data, gpointer info) { data->stack = g_slist_prepend (data->stack, info); } static inline gpointer state_peek (ParserData *data) { if (!data->stack) return NULL; return data->stack->data; } static inline gpointer state_pop (ParserData *data) { gpointer old = NULL; if (!data->stack) return NULL; old = data->stack->data; data->stack = g_slist_delete_link (data->stack, data->stack); return old; } #define state_peek_info(data, st) ((st*)state_peek(data)) #define state_pop_info(data, st) ((st*)state_pop(data)) static void error_missing_attribute (ParserData *data, const gchar *tag, const gchar *attribute, GError **error) { gint line_number, char_number; g_markup_parse_context_get_position (data->ctx, &line_number, &char_number); g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_MISSING_ATTRIBUTE, "%s:%d:%d <%s> requires attribute \"%s\"", data->filename, line_number, char_number, tag, attribute); } static void error_invalid_attribute (ParserData *data, const gchar *tag, const gchar *attribute, GError **error) { gint line_number, char_number; g_markup_parse_context_get_position (data->ctx, &line_number, &char_number); g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_INVALID_ATTRIBUTE, "%s:%d:%d '%s' is not a valid attribute of <%s>", data->filename, line_number, char_number, attribute, tag); } static void error_invalid_tag (ParserData *data, const gchar *tag, const gchar *expected, GError **error) { gint line_number, char_number; g_markup_parse_context_get_position (data->ctx, &line_number, &char_number); if (expected) g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_INVALID_TAG, "%s:%d:%d '%s' is not a valid tag here, expected a '%s' tag", data->filename, line_number, char_number, tag, expected); else g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_INVALID_TAG, "%s:%d:%d '%s' is not a valid tag here", data->filename, line_number, char_number, tag); } gboolean _gtk_builder_boolean_from_string (const gchar *string, gboolean *value, GError **error) { gboolean retval = TRUE; int length; g_assert (string != NULL); length = strlen (string); if (length == 0) retval = FALSE; else if (length == 1) { gchar c = g_ascii_tolower (string[0]); if (c == 'y' || c == 't' || c == '1') *value = TRUE; else if (c == 'n' || c == 'f' || c == '0') *value = FALSE; else retval = FALSE; } else { gchar *lower = g_ascii_strdown (string, length); if (strcmp (lower, "yes") == 0 || strcmp (lower, "true") == 0) *value = TRUE; else if (strcmp (lower, "no") == 0 || strcmp (lower, "false") == 0) *value = FALSE; else retval = FALSE; g_free (lower); } if (!retval) g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_INVALID_VALUE, "could not parse boolean `%s'", string); return retval; } static GObject * builder_construct (ParserData *data, ObjectInfo *object_info, GError **error) { GObject *object; g_assert (object_info != NULL); if (object_info->object && object_info->applied_properties) return object_info->object; object_info->properties = g_slist_reverse (object_info->properties); if (object_info->object == NULL) { object = _gtk_builder_construct (data->builder, object_info, error); if (!object) return NULL; } else { /* We're building a template, the object is already set and * we just want to resolve the properties at the right time */ object = object_info->object; _gtk_builder_apply_properties (data->builder, object_info, error); } object_info->applied_properties = TRUE; g_assert (G_IS_OBJECT (object)); object_info->object = object; return object; } static gchar * _get_type_by_symbol (const gchar* symbol) { static GModule *module = NULL; GTypeGetFunc func; GType type; if (!module) module = g_module_open (NULL, 0); if (!g_module_symbol (module, symbol, (gpointer)&func)) return NULL; type = func (); if (type == G_TYPE_INVALID) return NULL; return g_strdup (g_type_name (type)); } static void parse_requires (ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { RequiresInfo *req_info; const gchar *library = NULL; const gchar *version = NULL; gchar **split; gint i, version_major = 0, version_minor = 0; gint line_number, char_number; g_markup_parse_context_get_position (data->ctx, &line_number, &char_number); for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], "lib") == 0) library = values[i]; else if (strcmp (names[i], "version") == 0) version = values[i]; else error_invalid_attribute (data, element_name, names[i], error); } if (!library || !version) { error_missing_attribute (data, element_name, version ? "lib" : "version", error); return; } if (!(split = g_strsplit (version, ".", 2)) || !split[0] || !split[1]) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_INVALID_VALUE, "%s:%d:%d <%s> attribute has malformed value \"%s\"", data->filename, line_number, char_number, "version", version); return; } version_major = g_ascii_strtoll (split[0], NULL, 10); version_minor = g_ascii_strtoll (split[1], NULL, 10); g_strfreev (split); req_info = g_slice_new0 (RequiresInfo); req_info->library = g_strdup (library); req_info->major = version_major; req_info->minor = version_minor; state_push (data, req_info); req_info->tag.name = element_name; } static gboolean is_requested_object (const gchar *object, ParserData *data) { GSList *l; for (l = data->requested_objects; l; l = l->next) { if (g_strcmp0 (l->data, object) == 0) return TRUE; } return FALSE; } static void parse_object (GMarkupParseContext *context, ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { ObjectInfo *object_info; ChildInfo* child_info; int i; gchar *object_class = NULL; gchar *object_id = NULL; gchar *constructor = NULL; gint line, line2; child_info = state_peek_info (data, ChildInfo); if (child_info && strcmp (child_info->tag.name, "object") == 0) { error_invalid_tag (data, element_name, NULL, error); return; } for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], "class") == 0) object_class = g_strdup (values[i]); else if (strcmp (names[i], "id") == 0) object_id = g_strdup (values[i]); else if (strcmp (names[i], "constructor") == 0) constructor = g_strdup (values[i]); else if (strcmp (names[i], "type-func") == 0) { /* Call the GType function, and return the name of the GType, * it's guaranteed afterwards that g_type_from_name on the name * will return our GType */ object_class = _get_type_by_symbol (values[i]); if (!object_class) { g_markup_parse_context_get_position (context, &line, NULL); g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_INVALID_TYPE_FUNCTION, _("Invalid type function on line %d: '%s'"), line, values[i]); return; } } else { error_invalid_attribute (data, element_name, names[i], error); return; } } if (!object_class) { error_missing_attribute (data, element_name, "class", error); return; } data->object_counter++; if (!object_id) { object_id = g_strdup_printf ("___object_%d___", data->object_counter++); } ++data->cur_object_level; /* check if we reached a requested object (if it is specified) */ if (data->requested_objects && !data->inside_requested_object) { if (is_requested_object (object_id, data)) { data->requested_object_level = data->cur_object_level; GTK_NOTE (BUILDER, g_print ("requested object \"%s\" found at level %d\n", object_id, data->requested_object_level)); data->inside_requested_object = TRUE; } else { g_free (object_class); g_free (object_id); g_free (constructor); return; } } object_info = g_slice_new0 (ObjectInfo); object_info->class_name = object_class; object_info->id = object_id; object_info->constructor = constructor; state_push (data, object_info); object_info->tag.name = element_name; if (child_info) object_info->parent = (CommonInfo*)child_info; g_markup_parse_context_get_position (context, &line, NULL); line2 = GPOINTER_TO_INT (g_hash_table_lookup (data->object_ids, object_id)); if (line2 != 0) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_DUPLICATE_ID, _("Duplicate object ID '%s' on line %d (previously on line %d)"), object_id, line, line2); return; } g_hash_table_insert (data->object_ids, g_strdup (object_id), GINT_TO_POINTER (line)); } static void parse_template (GMarkupParseContext *context, ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { ObjectInfo *object_info; int i; gchar *object_class = NULL; gint line, line2; GType template_type = _gtk_builder_get_template_type (data->builder); GType parsed_type; if (template_type == 0) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_UNHANDLED_TAG, "Encountered template definition but not parsing a template."); return; } else if (state_peek (data) != NULL) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_UNHANDLED_TAG, "Encountered template definition that is not at the top level."); return; } for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], "class") == 0) object_class = g_strdup (values[i]); else if (strcmp (names[i], "parent") == 0) /* Ignore 'parent' attribute, however it's needed by Glade */; else { error_invalid_attribute (data, element_name, names[i], error); return; } } if (!object_class) { error_missing_attribute (data, element_name, "class", error); return; } parsed_type = g_type_from_name (object_class); if (template_type != parsed_type) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_TEMPLATE_MISMATCH, "Parsed template definition for type `%s', expected type `%s'.", object_class, g_type_name (template_type)); return; } ++data->cur_object_level; object_info = g_slice_new0 (ObjectInfo); object_info->class_name = object_class; object_info->id = g_strdup (object_class); object_info->object = gtk_builder_get_object (data->builder, object_class); state_push (data, object_info); object_info->tag.name = element_name; g_markup_parse_context_get_position (context, &line, NULL); line2 = GPOINTER_TO_INT (g_hash_table_lookup (data->object_ids, object_class)); if (line2 != 0) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_DUPLICATE_ID, _("Duplicate object ID '%s' on line %d (previously on line %d)"), object_class, line, line2); return; } g_hash_table_insert (data->object_ids, g_strdup (object_class), GINT_TO_POINTER (line)); } static void free_object_info (ObjectInfo *info) { /* Do not free the signal items, which GtkBuilder takes ownership of */ g_slist_free (info->signals); g_slist_foreach (info->properties, (GFunc)free_property_info, NULL); g_slist_free (info->properties); g_free (info->constructor); g_free (info->class_name); g_free (info->id); g_slice_free (ObjectInfo, info); } static void free_menu_info (MenuInfo *info) { g_free (info->id); g_hash_table_unref (info->objects); g_slice_free (MenuInfo, info); } static void parse_child (ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { ObjectInfo* object_info; ChildInfo *child_info; guint i; object_info = state_peek_info (data, ObjectInfo); if (!object_info || !(strcmp (object_info->tag.name, "object") == 0 || strcmp (object_info->tag.name, "template") == 0)) { error_invalid_tag (data, element_name, NULL, error); return; } child_info = g_slice_new0 (ChildInfo); state_push (data, child_info); child_info->tag.name = element_name; for (i = 0; names[i]; i++) { if (strcmp (names[i], "type") == 0) child_info->type = g_strdup (values[i]); else if (strcmp (names[i], "internal-child") == 0) child_info->internal_child = g_strdup (values[i]); else error_invalid_attribute (data, element_name, names[i], error); } child_info->parent = (CommonInfo*)object_info; object_info->object = builder_construct (data, object_info, error); } static void free_child_info (ChildInfo *info) { g_free (info->type); g_free (info->internal_child); g_slice_free (ChildInfo, info); } static void parse_property (ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { PropertyInfo *info; const gchar *name = NULL; const gchar *context = NULL; const gchar *bind_source = NULL; const gchar *bind_property = NULL; GBindingFlags bind_flags = G_BINDING_DEFAULT; gboolean translatable = FALSE; ObjectInfo *object_info; int i; object_info = state_peek_info (data, ObjectInfo); if (!object_info || !(strcmp (object_info->tag.name, "object") == 0 || strcmp (object_info->tag.name, "template") == 0)) { error_invalid_tag (data, element_name, NULL, error); return; } for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], "name") == 0) name = values[i]; else if (strcmp (names[i], "translatable") == 0) { if (!_gtk_builder_boolean_from_string (values[i], &translatable, error)) return; } else if (strcmp (names[i], "comments") == 0) { /* do nothing, comments are for translators */ } else if (strcmp (names[i], "context") == 0) { context = values[i]; } else if (strcmp (names[i], "bind-source") == 0) { bind_source = values[i]; } else if (strcmp (names[i], "bind-property") == 0) { bind_property = values[i]; } else if (strcmp (names[i], "bind-flags") == 0) { if (!_gtk_builder_flags_from_string (G_TYPE_BINDING_FLAGS, values[i], &bind_flags, error)) return; } else { error_invalid_attribute (data, element_name, names[i], error); return; } } if (!name) { error_missing_attribute (data, element_name, "name", error); return; } if (bind_source && bind_property) { BindingInfo *binfo = g_slice_new0 (BindingInfo); binfo->target_property = g_strdup (name); binfo->source = g_strdup (bind_source); binfo->source_property = g_strdup (bind_property); binfo->flags = bind_flags; object_info->bindings = g_slist_prepend (object_info->bindings, binfo); } else if (bind_source || bind_property) { error_missing_attribute (data, element_name, (bind_source) ? "bind-property" : "bind-source", error); return; } info = g_slice_new0 (PropertyInfo); info->name = g_strdelimit (g_strdup (name), "_", '-'); info->translatable = translatable; info->bound = (bind_source != NULL && bind_property != NULL); info->context = g_strdup (context); info->text = g_string_new (""); state_push (data, info); info->tag.name = element_name; } static void free_property_info (PropertyInfo *info) { g_free (info->data); g_free (info->name); g_free (info->context); /* info->text is already freed */ g_slice_free (PropertyInfo, info); } static void parse_signal (ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { SignalInfo *info; gchar *name = NULL; gchar *handler = NULL; gchar *object = NULL; gboolean after = FALSE; gboolean swapped = FALSE; gboolean swapped_set = FALSE; ObjectInfo *object_info; int i; object_info = state_peek_info (data, ObjectInfo); if (!object_info || !(strcmp (object_info->tag.name, "object") == 0 || strcmp (object_info->tag.name, "template") == 0)) { error_invalid_tag (data, element_name, NULL, error); return; } for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], "name") == 0) name = g_strdup (values[i]); else if (strcmp (names[i], "handler") == 0) handler = g_strdup (values[i]); else if (strcmp (names[i], "after") == 0) { if (!_gtk_builder_boolean_from_string (values[i], &after, error)) return; } else if (strcmp (names[i], "swapped") == 0) { if (!_gtk_builder_boolean_from_string (values[i], &swapped, error)) return; swapped_set = TRUE; } else if (strcmp (names[i], "object") == 0) object = g_strdup (values[i]); else if (strcmp (names[i], "last_modification_time") == 0) /* parse but ignore */ ; else { error_invalid_attribute (data, element_name, names[i], error); return; } } if (!name) { error_missing_attribute (data, element_name, "name", error); return; } else if (!handler) { error_missing_attribute (data, element_name, "handler", error); return; } /* Swapped defaults to FALSE except when object is set */ if (object && !swapped_set) swapped = TRUE; info = g_slice_new0 (SignalInfo); info->name = name; info->handler = handler; if (after) info->flags |= G_CONNECT_AFTER; if (swapped) info->flags |= G_CONNECT_SWAPPED; info->connect_object_name = object; state_push (data, info); info->tag.name = element_name; } /* Called by GtkBuilder */ void _free_signal_info (SignalInfo *info, gpointer user_data) { g_free (info->name); g_free (info->handler); g_free (info->connect_object_name); g_free (info->object_name); g_slice_free (SignalInfo, info); } static void free_requires_info (RequiresInfo *info, gpointer user_data) { g_free (info->library); g_slice_free (RequiresInfo, info); } static void parse_interface (ParserData *data, const gchar *element_name, const gchar **names, const gchar **values, GError **error) { int i; for (i = 0; names[i] != NULL; i++) { if (strcmp (names[i], "domain") == 0) { if (data->domain) { if (strcmp (data->domain, values[i]) == 0) continue; else g_warning ("%s: interface domain '%s' overrides " "programically set domain '%s'", data->filename, values[i], data->domain ); g_free (data->domain); } data->domain = g_strdup (values[i]); gtk_builder_set_translation_domain (data->builder, data->domain); } else error_invalid_attribute (data, "interface", names[i], error); } } static SubParser * create_subparser (GObject *object, GObject *child, const gchar *element_name, GMarkupParser *parser, gpointer user_data) { SubParser *subparser; subparser = g_slice_new0 (SubParser); subparser->object = object; subparser->child = child; subparser->tagname = g_strdup (element_name); subparser->start = element_name; subparser->parser = g_memdup (parser, sizeof (GMarkupParser)); subparser->data = user_data; return subparser; } static void free_subparser (SubParser *subparser) { g_free (subparser->tagname); g_slice_free (SubParser, subparser); } static gboolean subparser_start (GMarkupParseContext *context, const gchar *element_name, const gchar **names, const gchar **values, ParserData *data, GError **error) { SubParser *subparser = data->subparser; if (!subparser->start && strcmp (element_name, subparser->tagname) == 0) subparser->start = element_name; if (subparser->start) { if (subparser->parser->start_element) subparser->parser->start_element (context, element_name, names, values, subparser->data, error); return FALSE; } return TRUE; } static void subparser_end (GMarkupParseContext *context, const gchar *element_name, ParserData *data, GError **error) { if (data->subparser->parser->end_element) data->subparser->parser->end_element (context, element_name, data->subparser->data, error); if (!strcmp (data->subparser->start, element_name) == 0) return; gtk_buildable_custom_tag_end (GTK_BUILDABLE (data->subparser->object), data->builder, data->subparser->child, element_name, data->subparser->data); g_free (data->subparser->parser); if (GTK_BUILDABLE_GET_IFACE (data->subparser->object)->custom_finished) data->custom_finalizers = g_slist_prepend (data->custom_finalizers, data->subparser); else free_subparser (data->subparser); data->subparser = NULL; } static gboolean parse_custom (GMarkupParseContext *context, const gchar *element_name, const gchar **names, const gchar **values, ParserData *data, GError **error) { CommonInfo* parent_info; GMarkupParser parser; gpointer subparser_data; GObject *object; GObject *child; parent_info = state_peek_info (data, CommonInfo); if (!parent_info) return FALSE; if (strcmp (parent_info->tag.name, "object") == 0 || strcmp (parent_info->tag.name, "template") == 0) { ObjectInfo* object_info = (ObjectInfo*)parent_info; if (!object_info->object) { object_info->properties = g_slist_reverse (object_info->properties); object_info->object = _gtk_builder_construct (data->builder, object_info, error); if (!object_info->object) return TRUE; /* A GError is already set */ } g_assert (object_info->object); object = object_info->object; child = NULL; } else if (strcmp (parent_info->tag.name, "child") == 0) { ChildInfo* child_info = (ChildInfo*)parent_info; _gtk_builder_add (data->builder, child_info); object = ((ObjectInfo*)child_info->parent)->object; child = child_info->object; } else return FALSE; if (!gtk_buildable_custom_tag_start (GTK_BUILDABLE (object), data->builder, child, element_name, &parser, &subparser_data)) return FALSE; data->subparser = create_subparser (object, child, element_name, &parser, subparser_data); if (parser.start_element) parser.start_element (context, element_name, names, values, subparser_data, error); return TRUE; } static void start_element (GMarkupParseContext *context, const gchar *element_name, const gchar **names, const gchar **values, gpointer user_data, GError **error) { ParserData *data = (ParserData*)user_data; #ifdef G_ENABLE_DEBUG if (gtk_get_debug_flags () & GTK_DEBUG_BUILDER) { GString *tags = g_string_new (""); int i; for (i = 0; names[i]; i++) g_string_append_printf (tags, "%s=\"%s\" ", names[i], values[i]); if (i) { g_string_insert_c (tags, 0, ' '); g_string_truncate (tags, tags->len - 1); } g_print ("<%s%s>\n", element_name, tags->str); g_string_free (tags, TRUE); } #endif if (!data->last_element && strcmp (element_name, "interface") != 0) { g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_UNHANDLED_TAG, _("Invalid root element: '%s'"), element_name); return; } data->last_element = element_name; if (data->subparser) if (!subparser_start (context, element_name, names, values, data, error)) return; if (strcmp (element_name, "requires") == 0) parse_requires (data, element_name, names, values, error); else if (strcmp (element_name, "object") == 0) parse_object (context, data, element_name, names, values, error); else if (strcmp (element_name, "template") == 0) parse_template (context, data, element_name, names, values, error); else if (data->requested_objects && !data->inside_requested_object) { /* If outside a requested object, simply ignore this tag */ return; } else if (strcmp (element_name, "child") == 0) parse_child (data, element_name, names, values, error); else if (strcmp (element_name, "property") == 0) parse_property (data, element_name, names, values, error); else if (strcmp (element_name, "signal") == 0) parse_signal (data, element_name, names, values, error); else if (strcmp (element_name, "interface") == 0) parse_interface (data, element_name, names, values, error); else if (strcmp (element_name, "menu") == 0) _gtk_builder_menu_start (data, element_name, names, values, error); else if (strcmp (element_name, "placeholder") == 0) { /* placeholder has no special treatmeant, but it needs an * if clause to avoid an error below. */ } else if (!parse_custom (context, element_name, names, values, data, error)) g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_UNHANDLED_TAG, _("Unhandled tag: '%s'"), element_name); } const gchar * _gtk_builder_parser_translate (const gchar *domain, const gchar *context, const gchar *text) { const gchar *s; if (context) s = g_dpgettext2 (domain, context, text); else s = g_dgettext (domain, text); return s; } /* Called for close tags */ static void end_element (GMarkupParseContext *context, const gchar *element_name, gpointer user_data, GError **error) { ParserData *data = (ParserData*)user_data; GTK_NOTE (BUILDER, g_print ("\n", element_name)); if (data->subparser && data->subparser->start) { subparser_end (context, element_name, data, error); return; } if (strcmp (element_name, "requires") == 0) { RequiresInfo *req_info = state_pop_info (data, RequiresInfo); /* TODO: Allow third party widget developers to check thier * required versions, possibly throw a signal allowing them * to check thier library versions here. */ if (!strcmp (req_info->library, "gtk+")) { if (!GTK_CHECK_VERSION (req_info->major, req_info->minor, 0)) g_set_error (error, GTK_BUILDER_ERROR, GTK_BUILDER_ERROR_VERSION_MISMATCH, "%s: required %s version %d.%d, current version is %d.%d", data->filename, req_info->library, req_info->major, req_info->minor, GTK_MAJOR_VERSION, GTK_MINOR_VERSION); } free_requires_info (req_info, NULL); } else if (strcmp (element_name, "interface") == 0) { } else if (data->requested_objects && !data->inside_requested_object) { /* If outside a requested object, simply ignore this tag */ return; } else if (strcmp (element_name, "menu") == 0) { _gtk_builder_menu_end (data); } else if (strcmp (element_name, "object") == 0 || strcmp (element_name, "template") == 0) { ObjectInfo *object_info = state_pop_info (data, ObjectInfo); ChildInfo* child_info = state_peek_info (data, ChildInfo); if (data->requested_objects && data->inside_requested_object && (data->cur_object_level == data->requested_object_level)) { GTK_NOTE (BUILDER, g_print ("requested object end found at level %d\n", data->requested_object_level)); data->inside_requested_object = FALSE; } --data->cur_object_level; g_assert (data->cur_object_level >= 0); object_info->object = builder_construct (data, object_info, error); if (!object_info->object) { free_object_info (object_info); return; } if (child_info) child_info->object = object_info->object; if (GTK_IS_BUILDABLE (object_info->object) && GTK_BUILDABLE_GET_IFACE (object_info->object)->parser_finished) data->finalizers = g_slist_prepend (data->finalizers, object_info->object); _gtk_builder_add_signals (data->builder, object_info->signals); free_object_info (object_info); } else if (strcmp (element_name, "property") == 0) { PropertyInfo *prop_info = state_pop_info (data, PropertyInfo); CommonInfo *info = state_peek_info (data, CommonInfo); /* Normal properties */ if (strcmp (info->tag.name, "object") == 0 || strcmp (info->tag.name, "template") == 0) { ObjectInfo *object_info = (ObjectInfo*)info; if (prop_info->translatable && prop_info->text->len) { const gchar *translated; translated = _gtk_builder_parser_translate (data->domain, prop_info->context, prop_info->text->str); g_string_assign (prop_info->text, translated); } prop_info->data = g_string_free (prop_info->text, FALSE); object_info->properties = g_slist_prepend (object_info->properties, prop_info); } else g_assert_not_reached (); } else if (strcmp (element_name, "child") == 0) { ChildInfo *child_info = state_pop_info (data, ChildInfo); _gtk_builder_add (data->builder, child_info); free_child_info (child_info); } else if (strcmp (element_name, "signal") == 0) { SignalInfo *signal_info = state_pop_info (data, SignalInfo); ObjectInfo *object_info = (ObjectInfo*)state_peek_info (data, CommonInfo); signal_info->object_name = g_strdup (object_info->id); object_info->signals = g_slist_prepend (object_info->signals, signal_info); } else if (strcmp (element_name, "placeholder") == 0) { } else { g_assert_not_reached (); } } /* Called for character data */ /* text is not nul-terminated */ static void text (GMarkupParseContext *context, const gchar *text, gsize text_len, gpointer user_data, GError **error) { ParserData *data = (ParserData*)user_data; CommonInfo *info; if (data->subparser && data->subparser->start) { GError *tmp_error = NULL; if (data->subparser->parser->text) data->subparser->parser->text (context, text, text_len, data->subparser->data, &tmp_error); if (tmp_error) g_propagate_error (error, tmp_error); return; } if (!data->stack) return; info = state_peek_info (data, CommonInfo); g_assert (info != NULL); if (strcmp (g_markup_parse_context_get_element (context), "property") == 0) { PropertyInfo *prop_info = (PropertyInfo*)info; g_string_append_len (prop_info->text, text, text_len); } } static void free_info (CommonInfo *info) { if (strcmp (info->tag.name, "object") == 0 || strcmp (info->tag.name, "template") == 0) free_object_info ((ObjectInfo *)info); else if (strcmp (info->tag.name, "child") == 0) free_child_info ((ChildInfo *)info); else if (strcmp (info->tag.name, "property") == 0) free_property_info ((PropertyInfo *)info); else if (strcmp (info->tag.name, "signal") == 0) _free_signal_info ((SignalInfo *)info, NULL); else if (strcmp (info->tag.name, "requires") == 0) free_requires_info ((RequiresInfo *)info, NULL); else if (strcmp (info->tag.name, "menu") == 0) free_menu_info ((MenuInfo *)info); else g_assert_not_reached (); } static const GMarkupParser parser = { start_element, end_element, text, NULL, }; void _gtk_builder_parser_parse_buffer (GtkBuilder *builder, const gchar *filename, const gchar *buffer, gsize length, gchar **requested_objs, GError **error) { const gchar* domain; ParserData *data; GSList *l; /* Store the original domain so that interface domain attribute can be * applied for the builder and the original domain can be restored after * parsing has finished. This allows subparsers to translate elements with * gtk_builder_get_translation_domain() without breaking the ABI or API */ domain = gtk_builder_get_translation_domain (builder); data = g_new0 (ParserData, 1); data->builder = builder; data->filename = filename; data->domain = g_strdup (domain); data->object_ids = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify)g_free, NULL); data->requested_objects = NULL; if (requested_objs) { gint i; data->inside_requested_object = FALSE; for (i = 0; requested_objs[i]; ++i) { data->requested_objects = g_slist_prepend (data->requested_objects, g_strdup (requested_objs[i])); } } else { /* get all the objects */ data->inside_requested_object = TRUE; } data->ctx = g_markup_parse_context_new (&parser, G_MARKUP_TREAT_CDATA_AS_TEXT, data, NULL); if (!g_markup_parse_context_parse (data->ctx, buffer, length, error)) goto out; _gtk_builder_finish (builder); /* Custom parser_finished */ data->custom_finalizers = g_slist_reverse (data->custom_finalizers); for (l = data->custom_finalizers; l; l = l->next) { SubParser *sub = (SubParser*)l->data; gtk_buildable_custom_finished (GTK_BUILDABLE (sub->object), builder, sub->child, sub->tagname, sub->data); } /* Common parser_finished, for all created objects */ data->finalizers = g_slist_reverse (data->finalizers); for (l = data->finalizers; l; l = l->next) { GtkBuildable *buildable = (GtkBuildable*)l->data; gtk_buildable_parser_finished (GTK_BUILDABLE (buildable), builder); } out: g_slist_foreach (data->stack, (GFunc)free_info, NULL); g_slist_free (data->stack); g_slist_foreach (data->custom_finalizers, (GFunc)free_subparser, NULL); g_slist_free (data->custom_finalizers); g_slist_free (data->finalizers); g_slist_foreach (data->requested_objects, (GFunc) g_free, NULL); g_slist_free (data->requested_objects); g_free (data->domain); g_hash_table_destroy (data->object_ids); g_markup_parse_context_free (data->ctx); g_free (data); /* restore the original domain */ gtk_builder_set_translation_domain (builder, domain); }