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ardour/libs/tk/ytk/gtkbuilderparser.c

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/* gtkbuilderparser.c
* Copyright (C) 2006-2007 Async Open Source,
* Johan Dahlin <jdahlin@async.com.br>
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gmodule.h>
#include "gtktypeutils.h"
#include "gtkbuilderprivate.h"
#include "gtkbuilder.h"
#include "gtkbuildable.h"
#include "gtkdebug.h"
#include "gtkversion.h"
#include "gtktypeutils.h"
#include "gtkintl.h"
#include "gtkalias.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)
return object_info->object;
object_info->properties = g_slist_reverse (object_info->properties);
object = _gtk_builder_construct (data->builder, object_info, error);
if (!object)
return NULL;
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 (strcmp (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;
}
if (!object_id)
{
error_missing_attribute (data, element_name, "id", error);
return;
}
++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
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
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)
{
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;
gchar *name = NULL;
gchar *context = NULL;
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)
{
error_invalid_tag (data, element_name, NULL, error);
return;
}
for (i = 0; names[i] != NULL; i++)
{
if (strcmp (names[i], "name") == 0)
name = g_strdelimit (g_strdup (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 = g_strdup (values[i]);
}
else
{
error_invalid_attribute (data, element_name, names[i], error);
return;
}
}
if (!name)
{
error_missing_attribute (data, element_name, "name", error);
return;
}
info = g_slice_new0 (PropertyInfo);
info->name = name;
info->translatable = translatable;
info->context = 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_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)
{
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);
}
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)
{
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 GTK_ENABLE_DEBUG
if (gtk_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 (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, "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);
}
gchar *
_gtk_builder_parser_translate (const gchar *domain,
const gchar *context,
const gchar *text)
{
const char *s;
if (context)
s = g_dpgettext2 (domain, context, text);
else
s = g_dgettext (domain, text);
return g_strdup (s);
}
/* Called for close tags </foo> */
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 ("</%s>\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, "object") == 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)
{
ObjectInfo *object_info = (ObjectInfo*)info;
if (prop_info->translatable && prop_info->text->len)
{
prop_info->data = _gtk_builder_parser_translate (data->domain,
prop_info->context,
prop_info->text->str);
g_string_free (prop_info->text, TRUE);
}
else
{
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)
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
g_assert_not_reached ();
}
static const GMarkupParser parser = {
start_element,
end_element,
text,
NULL,
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);
}
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