static GVariant *
gconf_settings_backend_simple_gconf_value_type_to_gvariant (GConfValue *gconf_value,
const GVariantType *expected_type)
{
/* Note: it's guaranteed that the types are compatible */
GVariant *variant = NULL;
if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_BOOLEAN))
variant = g_variant_new_boolean (gconf_value_get_bool (gconf_value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_BYTE))
{
int value = gconf_value_get_int (gconf_value);
if (value < 0 || value > 255)
return NULL;
variant = g_variant_new_byte (value);
}
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_INT16))
{
int value = gconf_value_get_int (gconf_value);
if (value < G_MINSHORT || value > G_MAXSHORT)
return NULL;
variant = g_variant_new_int16 (value);
}
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_UINT16))
{
int value = gconf_value_get_int (gconf_value);
if (value < 0 || value > G_MAXUSHORT)
return NULL;
variant = g_variant_new_uint16 (value);
}
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_INT32))
variant = g_variant_new_int32 (gconf_value_get_int (gconf_value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_UINT32))
{
int value = gconf_value_get_int (gconf_value);
if (value < 0)
return NULL;
variant = g_variant_new_uint32 (value);
}
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_INT64))
variant = g_variant_new_int64 ((gint64) gconf_value_get_int (gconf_value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_UINT64))
{
int value = gconf_value_get_int (gconf_value);
if (value < 0)
return NULL;
variant = g_variant_new_uint64 (value);
}
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_HANDLE))
{
int value = gconf_value_get_int (gconf_value);
if (value < 0)
return NULL;
variant = g_variant_new_handle (value);
}
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_DOUBLE))
variant = g_variant_new_double (gconf_value_get_float (gconf_value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_STRING))
variant = g_variant_new_string (gconf_value_get_string (gconf_value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_OBJECT_PATH))
variant = g_variant_new_object_path (gconf_value_get_string (gconf_value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_SIGNATURE))
variant = g_variant_new_signature (gconf_value_get_string (gconf_value));
return variant;
}
GVariant *
g_settings_set_mapping (const GValue *value,
const GVariantType *expected_type,
gpointer user_data)
{
gchar *type_string;
if (G_VALUE_HOLDS_BOOLEAN (value))
{
if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_BOOLEAN))
return g_variant_new_boolean (g_value_get_boolean (value));
}
else if (G_VALUE_HOLDS_CHAR (value) ||
G_VALUE_HOLDS_UCHAR (value))
{
if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_BYTE))
{
if (G_VALUE_HOLDS_CHAR (value))
return g_variant_new_byte (g_value_get_char (value));
else
return g_variant_new_byte (g_value_get_uchar (value));
}
}
else if (G_VALUE_HOLDS_INT (value) ||
G_VALUE_HOLDS_INT64 (value))
return g_settings_set_mapping_int (value, expected_type);
else if (G_VALUE_HOLDS_DOUBLE (value))
return g_settings_set_mapping_float (value, expected_type);
else if (G_VALUE_HOLDS_UINT (value) ||
G_VALUE_HOLDS_UINT64 (value))
return g_settings_set_mapping_unsigned_int (value, expected_type);
else if (G_VALUE_HOLDS_STRING (value))
{
if (g_value_get_string (value) == NULL)
return NULL;
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_STRING))
return g_variant_new_string (g_value_get_string (value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_BYTESTRING))
return g_variant_new_bytestring (g_value_get_string (value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_OBJECT_PATH))
return g_variant_new_object_path (g_value_get_string (value));
else if (g_variant_type_equal (expected_type, G_VARIANT_TYPE_SIGNATURE))
return g_variant_new_signature (g_value_get_string (value));
}
else if (G_VALUE_HOLDS (value, G_TYPE_STRV))
{
if (g_value_get_boxed (value) == NULL)
return NULL;
return g_variant_new_strv ((const gchar **) g_value_get_boxed (value),
-1);
}
else if (G_VALUE_HOLDS_ENUM (value))
{
GEnumValue *enumval;
GEnumClass *eclass;
/* GParamSpecEnum holds a ref on the class so we just peek... */
eclass = g_type_class_peek (G_VALUE_TYPE (value));
enumval = g_enum_get_value (eclass, g_value_get_enum (value));
if (enumval)
return g_variant_new_string (enumval->value_nick);
else
return NULL;
}
else if (G_VALUE_HOLDS_FLAGS (value))
{
GVariantBuilder builder;
GFlagsValue *flagsval;
GFlagsClass *fclass;
guint flags;
fclass = g_type_class_peek (G_VALUE_TYPE (value));
flags = g_value_get_flags (value);
g_variant_builder_init (&builder, G_VARIANT_TYPE ("as"));
while (flags)
{
flagsval = g_flags_get_first_value (fclass, flags);
if (flagsval == NULL)
{
g_variant_builder_clear (&builder);
return NULL;
}
g_variant_builder_add (&builder, "s", flagsval->value_nick);
flags &= ~flagsval->value;
}
return g_variant_builder_end (&builder);
}
type_string = g_variant_type_dup_string (expected_type);
g_critical ("No GSettings bind handler for type \"%s\".", type_string);
g_free (type_string);
return NULL;
}
/**
* g_dbus_gvalue_to_gvariant:
* @gvalue: A #GValue to convert to a #GVariant
* @type: A #GVariantType
*
* Converts a #GValue to a #GVariant of the type indicated by the @type
* parameter.
*
* The conversion is using the following rules:
*
* - #G_TYPE_STRING: 's', 'o', 'g' or 'ay'
* - #G_TYPE_STRV: 'as', 'ao' or 'aay'
* - #G_TYPE_BOOLEAN: 'b'
* - #G_TYPE_UCHAR: 'y'
* - #G_TYPE_INT: 'i', 'n'
* - #G_TYPE_UINT: 'u', 'q'
* - #G_TYPE_INT64 'x'
* - #G_TYPE_UINT64: 't'
* - #G_TYPE_DOUBLE: 'd'
* - #G_TYPE_VARIANT: Any #GVariantType
*
* This can fail if e.g. @gvalue is of type #G_TYPE_STRING and @type
* is ['i'][G-VARIANT-TYPE-INT32:CAPS]. It will also fail for any #GType
* (including e.g. #G_TYPE_OBJECT and #G_TYPE_BOXED derived-types) not
* in the table above.
*
* Note that if @gvalue is of type #G_TYPE_VARIANT and its value is
* %NULL, the empty #GVariant instance (never %NULL) for @type is
* returned (e.g. 0 for scalar types, the empty string for string types,
* '/' for object path types, the empty array for any array type and so on).
*
* See the g_dbus_gvariant_to_gvalue() function for how to convert a
* #GVariant to a #GValue.
*
* Returns: A #GVariant (never floating) of #GVariantType @type holding
* the data from @gvalue or %NULL in case of failure. Free with
* g_variant_unref().
*
* Since: 2.30
*/
GVariant *
g_dbus_gvalue_to_gvariant (const GValue *gvalue,
const GVariantType *type)
{
GVariant *ret;
const gchar *s;
const gchar * const *as;
const gchar *empty_strv[1] = {NULL};
g_return_val_if_fail (gvalue != NULL, NULL);
g_return_val_if_fail (type != NULL, NULL);
ret = NULL;
/* @type can easily be e.g. "s" with the GValue holding a GVariant - for example this
* can happen when using the org.gtk.GDBus.C.ForceGVariant annotation with the
* gdbus-codegen(1) tool.
*/
if (G_VALUE_TYPE (gvalue) == G_TYPE_VARIANT)
{
ret = g_value_dup_variant (gvalue);
}
else
{
switch (g_variant_type_peek_string (type)[0])
{
case G_VARIANT_CLASS_BOOLEAN:
ret = g_variant_ref_sink (g_variant_new_boolean (g_value_get_boolean (gvalue)));
break;
case G_VARIANT_CLASS_BYTE:
ret = g_variant_ref_sink (g_variant_new_byte (g_value_get_uchar (gvalue)));
break;
case G_VARIANT_CLASS_INT16:
ret = g_variant_ref_sink (g_variant_new_int16 (g_value_get_int (gvalue)));
break;
case G_VARIANT_CLASS_UINT16:
ret = g_variant_ref_sink (g_variant_new_uint16 (g_value_get_uint (gvalue)));
break;
case G_VARIANT_CLASS_INT32:
ret = g_variant_ref_sink (g_variant_new_int32 (g_value_get_int (gvalue)));
break;
case G_VARIANT_CLASS_UINT32:
ret = g_variant_ref_sink (g_variant_new_uint32 (g_value_get_uint (gvalue)));
break;
case G_VARIANT_CLASS_INT64:
ret = g_variant_ref_sink (g_variant_new_int64 (g_value_get_int64 (gvalue)));
break;
case G_VARIANT_CLASS_UINT64:
ret = g_variant_ref_sink (g_variant_new_uint64 (g_value_get_uint64 (gvalue)));
break;
case G_VARIANT_CLASS_DOUBLE:
ret = g_variant_ref_sink (g_variant_new_double (g_value_get_double (gvalue)));
break;
case G_VARIANT_CLASS_STRING:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "";
ret = g_variant_ref_sink (g_variant_new_string (s));
break;
case G_VARIANT_CLASS_OBJECT_PATH:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "/";
ret = g_variant_ref_sink (g_variant_new_object_path (s));
break;
case G_VARIANT_CLASS_SIGNATURE:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "";
ret = g_variant_ref_sink (g_variant_new_signature (s));
break;
case G_VARIANT_CLASS_ARRAY:
switch (g_variant_type_peek_string (type)[1])
{
case G_VARIANT_CLASS_BYTE:
s = g_value_get_string (gvalue);
if (s == NULL)
s = "";
ret = g_variant_ref_sink (g_variant_new_bytestring (s));
break;
case G_VARIANT_CLASS_STRING:
as = g_value_get_boxed (gvalue);
if (as == NULL)
as = empty_strv;
ret = g_variant_ref_sink (g_variant_new_strv (as, -1));
break;
case G_VARIANT_CLASS_OBJECT_PATH:
as = g_value_get_boxed (gvalue);
if (as == NULL)
as = empty_strv;
ret = g_variant_ref_sink (g_variant_new_objv (as, -1));
break;
case G_VARIANT_CLASS_ARRAY:
switch (g_variant_type_peek_string (type)[2])
{
case G_VARIANT_CLASS_BYTE:
as = g_value_get_boxed (gvalue);
if (as == NULL)
as = empty_strv;
ret = g_variant_ref_sink (g_variant_new_bytestring_array (as, -1));
break;
default:
ret = g_value_dup_variant (gvalue);
break;
}
break;
default:
ret = g_value_dup_variant (gvalue);
break;
}
break;
case G_VARIANT_CLASS_HANDLE:
case G_VARIANT_CLASS_VARIANT:
case G_VARIANT_CLASS_MAYBE:
case G_VARIANT_CLASS_TUPLE:
case G_VARIANT_CLASS_DICT_ENTRY:
ret = g_value_dup_variant (gvalue);
break;
}
}
/* Could be that the GValue is holding a NULL GVariant - in that case,
* we return an "empty" GVariant instead of a NULL GVariant
*/
if (ret == NULL)
{
GVariant *untrusted_empty;
untrusted_empty = g_variant_new_from_data (type, NULL, 0, FALSE, NULL, NULL);
ret = g_variant_ref_sink (g_variant_get_normal_form (untrusted_empty));
g_variant_unref (untrusted_empty);
}
g_assert (!g_variant_is_floating (ret));
return ret;
}
static GVariant *
dconf_dbus_to_gv (DBusMessageIter *iter,
GError **error)
{
gint arg_type;
arg_type = dbus_message_iter_get_arg_type (iter);
switch (dbus_message_iter_get_arg_type (iter))
{
case DBUS_TYPE_BOOLEAN:
{
dbus_bool_t value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_boolean (value);
}
case DBUS_TYPE_BYTE:
{
guchar value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_byte (value);
}
case DBUS_TYPE_INT16:
{
gint16 value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_int16 (value);
}
case DBUS_TYPE_UINT16:
{
guint16 value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_uint16 (value);
}
case DBUS_TYPE_INT32:
{
gint32 value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_int32 (value);
}
case DBUS_TYPE_UINT32:
{
guint32 value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_uint32 (value);
}
case DBUS_TYPE_INT64:
{
gint64 value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_int64 (value);
}
case DBUS_TYPE_UINT64:
{
guint64 value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_uint64 (value);
}
case DBUS_TYPE_DOUBLE:
{
gdouble value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_double (value);
}
case DBUS_TYPE_STRING:
{
const gchar *value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_string (value);
}
case DBUS_TYPE_OBJECT_PATH:
{
const gchar *value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_object_path (value);
}
case DBUS_TYPE_SIGNATURE:
{
const gchar *value;
dbus_message_iter_get_basic (iter, &value);
return g_variant_new_signature (value);
}
case DBUS_TYPE_VARIANT:
{
GVariantBuilder *builder;
GVariantClass class;
DBusMessageIter sub;
char *type;
GVariant *val;
dbus_message_iter_recurse (iter, &sub);
class = dbus_message_iter_get_arg_type (iter);
type = dbus_message_iter_get_signature (&sub);
builder = g_variant_builder_new (G_VARIANT_TYPE_VARIANT);
dbus_free (type);
while (dbus_message_iter_get_arg_type (&sub))
{
val = dconf_dbus_to_gv (&sub, error);
if (val == NULL)
{
g_variant_builder_cancel (builder);
goto fail;
}
g_variant_builder_add_value (builder, val);
dbus_message_iter_next (&sub);
}
return g_variant_builder_end (builder);
}
case DBUS_TYPE_ARRAY:
case DBUS_TYPE_STRUCT:
case DBUS_TYPE_DICT_ENTRY:
{
GVariantBuilder *builder;
GVariantClass class;
DBusMessageIter sub;
char *type;
GVariant *val;
dbus_message_iter_recurse (iter, &sub);
class = dbus_message_iter_get_arg_type (iter);
type = dbus_message_iter_get_signature (iter);
builder = g_variant_builder_new (G_VARIANT_TYPE (type));
dbus_free (type);
while (dbus_message_iter_get_arg_type (&sub))
{
val = dconf_dbus_to_gv (&sub, error);
if (val == NULL)
{
g_variant_builder_cancel (builder);
goto fail;
}
g_variant_builder_add_value (builder, val);
dbus_message_iter_next (&sub);
}
return g_variant_builder_end (builder);
}
default:
g_set_error (error,
G_DBUS_ERROR,
G_DBUS_ERROR_CONVERSION_FAILED,
_("Error serializing D-Bus message to GVariant. Unsupported arg type `%c' (%d)"),
arg_type,
arg_type);
goto fail;
}
g_assert_not_reached ();
fail:
return NULL;
}
static GVariant *
parse_json (JsonNode *node,
const GVariantType *type,
GError **error)
{
const GVariantType *element_type;
const gchar *str;
if (!g_variant_type_is_definite (type))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA,
"Indefinite type '%.*s' is not supported",
(int)g_variant_type_get_string_length (type),
g_variant_type_peek_string (type));
return NULL;
}
if (g_variant_type_is_basic (type))
{
if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_BOOLEAN, error))
return g_variant_new_boolean (json_node_get_boolean (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_BYTE))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_byte (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT16))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_int16 (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT16))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_uint16 (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT32))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_int32 (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT32))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_uint32 (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT64))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_int64 (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT64))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, error))
return g_variant_new_uint64 (json_node_get_int (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_DOUBLE))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_INT64, NULL))
return g_variant_new_double (json_node_get_int (node));
else if (check_type (node, JSON_NODE_VALUE, G_TYPE_DOUBLE, error))
return g_variant_new_double (json_node_get_double (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_STRING, error))
return g_variant_new_string (json_node_get_string (node));
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_OBJECT_PATH))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_STRING, error))
{
str = json_node_get_string (node);
if (g_variant_is_object_path (str))
return g_variant_new_object_path (str);
else
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA,
"Invalid object path '%s'", str);
return NULL;
}
}
}
else if (g_variant_type_equal (type, G_VARIANT_TYPE_SIGNATURE))
{
if (check_type (node, JSON_NODE_VALUE, G_TYPE_STRING, error))
{
str = json_node_get_string (node);
if (g_variant_is_signature (str))
return g_variant_new_signature (str);
else
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA,
"Invalid signature '%s'", str);
return NULL;
}
}
}
else
{
parse_not_supported (type, error);
}
}
else if (g_variant_type_is_variant (type))
{
return parse_json_variant (node, error);
}
else if (g_variant_type_is_array (type))
{
element_type = g_variant_type_element (type);
if (g_variant_type_is_dict_entry (element_type))
return parse_json_dictionary (node, element_type, error);
else
return parse_json_array (node, element_type, error);
}
else if (g_variant_type_is_tuple (type))
{
return parse_json_tuple (node, g_variant_type_first (type), error);
}
else
{
parse_not_supported (type, error);
}
return NULL;
}