/**
* json_gvariant_serialize:
* @variant: A #GVariant to convert
*
* Converts @variant to a JSON tree.
*
* Return value: (transfer full): A #JsonNode representing the root of the
* JSON data structure obtained from @variant
*
* Since: 0.14
*/
JsonNode *
json_gvariant_serialize (GVariant *variant)
{
JsonNode *json_node = NULL;
GVariantClass class;
g_return_val_if_fail (variant != NULL, NULL);
class = g_variant_classify (variant);
if (! g_variant_is_container (variant))
{
json_node = json_node_new (JSON_NODE_VALUE);
switch (class)
{
case G_VARIANT_CLASS_BOOLEAN:
json_node_set_boolean (json_node, g_variant_get_boolean (variant));
break;
case G_VARIANT_CLASS_BYTE:
json_node_set_int (json_node, g_variant_get_byte (variant));
break;
case G_VARIANT_CLASS_INT16:
json_node_set_int (json_node, g_variant_get_int16 (variant));
break;
case G_VARIANT_CLASS_UINT16:
json_node_set_int (json_node, g_variant_get_uint16 (variant));
break;
case G_VARIANT_CLASS_INT32:
json_node_set_int (json_node, g_variant_get_int32 (variant));
break;
case G_VARIANT_CLASS_UINT32:
json_node_set_int (json_node, g_variant_get_uint32 (variant));
break;
case G_VARIANT_CLASS_INT64:
json_node_set_int (json_node, g_variant_get_int64 (variant));
break;
case G_VARIANT_CLASS_UINT64:
json_node_set_int (json_node, g_variant_get_uint64 (variant));
break;
case G_VARIANT_CLASS_HANDLE:
json_node_set_int (json_node, g_variant_get_handle (variant));
break;
case G_VARIANT_CLASS_DOUBLE:
json_node_set_double (json_node, g_variant_get_double (variant));
break;
case G_VARIANT_CLASS_STRING:
case G_VARIANT_CLASS_OBJECT_PATH:
case G_VARIANT_CLASS_SIGNATURE:
json_node_set_string (json_node, g_variant_get_string (variant, NULL));
break;
default:
break;
}
}
void
trg_prefs_set_double(TrgPrefs * p, const gchar * key, gdouble value,
int flags)
{
JsonNode *node = trg_prefs_get_value(p, key, JSON_NODE_VALUE,
flags | TRG_PREFS_NEWNODE);
json_node_set_double(node, value);
trg_prefs_changed_emit_signal(p, key);
}
/**
* json_node_init_double:
* @node: the #JsonNode to initialize
* @value: a floating point value
*
* Initializes @node to %JSON_NODE_VALUE and sets @value into it.
*
* If the node has already been initialized once, it will be reset to
* the given type, and any data contained will be cleared.
*
* Return value: (transfer none): the initialized #JsonNode
*
* Since: 0.16
*/
JsonNode *
json_node_init_double (JsonNode *node,
gdouble value)
{
g_return_val_if_fail (node != NULL, NULL);
json_node_init (node, JSON_NODE_VALUE);
json_node_set_double (node, value);
return node;
}
/**
* json_array_add_double_element:
* @array: a #JsonArray
* @value: a floating point value
*
* Conveniently adds a floating point @value into @array
*
* See also: json_array_add_element(), json_node_set_double()
*
* Since: 0.8
*/
void
json_array_add_double_element (JsonArray *array,
gdouble value)
{
JsonNode *node;
g_return_if_fail (array != NULL);
node = json_node_new (JSON_NODE_VALUE);
json_node_set_double (node, value);
g_ptr_array_add (array->elements, node);
}
/**
* json_object_set_double_member:
* @object: a #JsonObject
* @member_name: the name of the member
* @value: the value of the member
*
* Convenience function for setting a floating point @value
* of @member_name inside @object.
*
* See also: json_object_set_member()
*
* Since: 0.8
*/
void
json_object_set_double_member (JsonObject *object,
const gchar *member_name,
gdouble value)
{
JsonNode *node;
g_return_if_fail (object != NULL);
g_return_if_fail (member_name != NULL);
node = json_node_new (JSON_NODE_VALUE);
json_node_set_double (node, value);
object_set_member_internal (object, member_name, node);
}
JsonNode *
json_serialize_pspec (const GValue *real_value,
GParamSpec *pspec)
{
JsonNode *retval = NULL;
GValue value = { 0, };
JsonNodeType node_type;
switch (G_TYPE_FUNDAMENTAL (G_VALUE_TYPE (real_value)))
{
case G_TYPE_INT64:
case G_TYPE_BOOLEAN:
case G_TYPE_DOUBLE:
/* JSON native types */
retval = json_node_new (JSON_NODE_VALUE);
g_value_init (&value, G_VALUE_TYPE (real_value));
g_value_copy (real_value, &value);
json_node_set_value (retval, &value);
g_value_unset (&value);
break;
case G_TYPE_STRING:
/* strings might be NULL, so we handle it differently */
if (!g_value_get_string (real_value))
retval = json_node_new (JSON_NODE_NULL);
else
{
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_string (retval, g_value_get_string (real_value));
break;
}
break;
case G_TYPE_INT:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_int (real_value));
break;
case G_TYPE_FLOAT:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_double (retval, g_value_get_float (real_value));
break;
case G_TYPE_BOXED:
if (G_VALUE_HOLDS (real_value, G_TYPE_STRV))
{
gchar **strv = g_value_get_boxed (real_value);
gint i, strv_len;
JsonArray *array;
strv_len = g_strv_length (strv);
array = json_array_sized_new (strv_len);
for (i = 0; i < strv_len; i++)
{
JsonNode *str = json_node_new (JSON_NODE_VALUE);
json_node_set_string (str, strv[i]);
json_array_add_element (array, str);
}
retval = json_node_new (JSON_NODE_ARRAY);
json_node_take_array (retval, array);
}
else if (json_boxed_can_serialize (G_VALUE_TYPE (real_value), &node_type))
{
gpointer boxed = g_value_get_boxed (real_value);
retval = json_boxed_serialize (G_VALUE_TYPE (real_value), boxed);
}
else
g_warning ("Boxed type '%s' is not handled by JSON-GLib",
g_type_name (G_VALUE_TYPE (real_value)));
break;
case G_TYPE_UINT:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_uint (real_value));
break;
case G_TYPE_LONG:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_long (real_value));
break;
case G_TYPE_ULONG:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_long (real_value));
break;
case G_TYPE_CHAR:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_char (real_value));
break;
case G_TYPE_UCHAR:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_uchar (real_value));
break;
case G_TYPE_ENUM:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_enum (real_value));
break;
case G_TYPE_FLAGS:
retval = json_node_new (JSON_NODE_VALUE);
json_node_set_int (retval, g_value_get_flags (real_value));
break;
case G_TYPE_OBJECT:
{
GObject *object = g_value_get_object (real_value);
if (object != NULL)
{
retval = json_node_new (JSON_NODE_OBJECT);
json_node_take_object (retval, json_gobject_dump (object));
}
else
retval = json_node_new (JSON_NODE_NULL);
}
break;
case G_TYPE_NONE:
retval = json_node_new (JSON_NODE_NULL);
break;
default:
g_warning ("Unsupported type `%s'", g_type_name (G_VALUE_TYPE (real_value)));
break;
}
return retval;
}
void Settings::setDouble(const char* path, gdouble value){
JsonNode* node = getNode(path);
json_node_set_double (node, value);
json_node_free(node);
}
static void
js_value (JSContextRef ctx, JSValueRef value, JsonNode ** v)
{
switch (JSValueGetType (ctx, value))
{
case kJSTypeUndefined:
case kJSTypeNull:
*v = json_node_new (JSON_NODE_NULL);
break;
case kJSTypeBoolean:
*v = json_node_new (JSON_NODE_VALUE);
json_node_set_boolean (*v,
JSValueToBoolean (ctx,
value) ==
true ? TRUE : FALSE);
break;
case kJSTypeNumber:
*v = json_node_new (JSON_NODE_VALUE);
json_node_set_double (*v,
(gdouble) JSValueToNumber (ctx, value, NULL));
break;
case kJSTypeString:
{
JSStringRef string;
gchar *str;
string = JSValueToStringCopy (ctx, value, NULL);
str = js_string (string);
JSStringRelease (string);
*v = json_node_new (JSON_NODE_VALUE);
json_node_set_string (*v, str);
g_free (str);
break;
}
case kJSTypeObject:
{
*v = json_node_new (JSON_NODE_OBJECT);
JsonObject *o = json_object_new ();
js_obj (ctx, JSValueToObject (ctx, value, NULL), o);
json_node_take_object (*v, o);
break;
}
}
/* FIXME: array?!? integer?!?
-> probably arrays are considered instances of Array() Javascript object ?!
see http://developer.apple.com/library/mac/#documentation/Carbon/Reference/WebKit_JavaScriptCore_Ref/JSValueRef_h/index.html%23//apple_ref/c/func/JSValueGetType */
debug_print_json_node ( "js_value(): ", *v );
}
static guint
json_parse_statement (JsonParser *parser,
JsonScanner *scanner)
{
JsonParserPrivate *priv = parser->priv;
guint token;
token = json_scanner_peek_next_token (scanner);
switch (token)
{
case G_TOKEN_LEFT_CURLY:
return json_parse_object (parser, scanner, &priv->root);
case G_TOKEN_LEFT_BRACE:
return json_parse_array (parser, scanner, &priv->root);
/* some web APIs are not only passing the data structures: they are
* also passing an assigment, which makes parsing horribly complicated
* only because web developers are lazy, and writing "var foo = " is
* evidently too much to request from them.
*/
case JSON_TOKEN_VAR:
{
guint next_token;
gchar *name;
/* swallow the 'var' token... */
token = json_scanner_get_next_token (scanner);
/* ... swallow the variable name... */
next_token = json_scanner_get_next_token (scanner);
if (next_token != G_TOKEN_IDENTIFIER)
return G_TOKEN_IDENTIFIER;
name = g_strdup (scanner->value.v_identifier);
/* ... and finally swallow the '=' */
next_token = json_scanner_get_next_token (scanner);
if (next_token != '=')
return '=';
priv->has_assignment = TRUE;
priv->variable_name = name;
token = json_parse_statement (parser, scanner);
/* remove the trailing semi-colon */
next_token = json_scanner_peek_next_token (scanner);
if (next_token == ';')
{
token = json_scanner_get_next_token (scanner);
return G_TOKEN_NONE;
}
return token;
}
break;
case JSON_TOKEN_NULL:
priv->root = priv->current_node = json_node_new (JSON_NODE_NULL);
json_scanner_get_next_token (scanner);
return G_TOKEN_NONE;
case JSON_TOKEN_TRUE:
case JSON_TOKEN_FALSE:
priv->root = priv->current_node = json_node_new (JSON_NODE_VALUE);
json_node_set_boolean (priv->current_node,
token == JSON_TOKEN_TRUE ? TRUE : FALSE);
json_scanner_get_next_token (scanner);
return G_TOKEN_NONE;
case '-':
{
guint next_token;
token = json_scanner_get_next_token (scanner);
next_token = json_scanner_peek_next_token (scanner);
if (next_token == G_TOKEN_INT || next_token == G_TOKEN_FLOAT)
{
priv->root = priv->current_node = json_node_new (JSON_NODE_VALUE);
token = json_scanner_get_next_token (scanner);
switch (token)
{
case G_TOKEN_INT:
json_node_set_int (priv->current_node,
scanner->value.v_int64 * -1);
break;
case G_TOKEN_FLOAT:
json_node_set_double (priv->current_node,
scanner->value.v_float * -1.0);
break;
default:
return G_TOKEN_INT;
}
json_scanner_get_next_token (scanner);
return G_TOKEN_NONE;
}
else
return G_TOKEN_INT;
}
break;
case G_TOKEN_INT:
case G_TOKEN_FLOAT:
case G_TOKEN_STRING:
token = json_scanner_get_next_token (scanner);
return json_parse_value (parser, scanner, token, &priv->root);
default:
json_scanner_get_next_token (scanner);
return G_TOKEN_SYMBOL;
}
}
static guint
json_parse_value (JsonParser *parser,
JsonScanner *scanner,
guint token,
JsonNode **node)
{
JsonNode *current_node = parser->priv->current_node;
gboolean is_negative = FALSE;
if (token == '-')
{
guint next_token = json_scanner_peek_next_token (scanner);
if (next_token == G_TOKEN_INT ||
next_token == G_TOKEN_FLOAT)
{
is_negative = TRUE;
token = json_scanner_get_next_token (scanner);
}
else
return G_TOKEN_INT;
}
switch (token)
{
case G_TOKEN_INT:
*node = json_node_new (JSON_NODE_VALUE);
json_node_set_int (*node, is_negative ? scanner->value.v_int64 * -1
: scanner->value.v_int64);
break;
case G_TOKEN_FLOAT:
*node = json_node_new (JSON_NODE_VALUE);
json_node_set_double (*node, is_negative ? scanner->value.v_float * -1.0
: scanner->value.v_float);
break;
case G_TOKEN_STRING:
*node = json_node_new (JSON_NODE_VALUE);
json_node_set_string (*node, scanner->value.v_string);
break;
case JSON_TOKEN_TRUE:
case JSON_TOKEN_FALSE:
*node = json_node_new (JSON_NODE_VALUE);
json_node_set_boolean (*node, token == JSON_TOKEN_TRUE ? TRUE : FALSE);
break;
case JSON_TOKEN_NULL:
*node = json_node_new (JSON_NODE_NULL);
break;
default:
{
JsonNodeType cur_type;
*node = NULL;
cur_type = json_node_get_node_type (current_node);
if (cur_type == JSON_NODE_ARRAY)
return G_TOKEN_RIGHT_BRACE;
else if (cur_type == JSON_NODE_OBJECT)
return G_TOKEN_RIGHT_CURLY;
else
return G_TOKEN_SYMBOL;
}
}
return G_TOKEN_NONE;
}
