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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
// SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
// SPDX-FileCopyrightText: 2008 litl, LLC
#include <config.h>
#include <girepository.h>
#include <glib-object.h>
#include <glib.h>
#include <js/PropertyAndElement.h>
#include <js/RootingAPI.h>
#include <js/TypeDecls.h>
#include <jsapi.h> // for JS_NewPlainObject
#include "gi/cwrapper.h"
#include "gi/enumeration.h"
#include "gi/wrapperutils.h"
#include "gjs/jsapi-util.h"
#include "gjs/macros.h"
#include "util/log.h"
GJS_JSAPI_RETURN_CONVENTION
static bool
gjs_define_enum_value(JSContext *context,
JS::HandleObject in_object,
GIValueInfo *info)
{
const char* value_name;
gsize i;
gint64 value_val;
value_name = g_base_info_get_name( (GIBaseInfo*) info);
value_val = g_value_info_get_value(info);
/* g-i converts enum members such as GDK_GRAVITY_SOUTH_WEST to
* Gdk.GravityType.south-west (where 'south-west' is value_name)
* Convert back to all SOUTH_WEST.
*/
GjsAutoChar fixed_name = g_ascii_strup(value_name, -1);
for (i = 0; fixed_name[i]; ++i) {
char c = fixed_name[i];
if (!(('A' <= c && c <= 'Z') ||
('0' <= c && c <= '9')))
fixed_name[i] = '_';
}
gjs_debug(GJS_DEBUG_GENUM,
"Defining enum value %s (fixed from %s) %" G_GINT64_MODIFIER "d",
fixed_name.get(), value_name, value_val);
if (!JS_DefineProperty(context, in_object,
fixed_name, (double) value_val,
GJS_MODULE_PROP_FLAGS)) {
gjs_throw(context,
"Unable to define enumeration value %s %" G_GINT64_FORMAT
" (no memory most likely)",
fixed_name.get(), value_val);
return false;
}
return true;
}
bool
gjs_define_enum_values(JSContext *context,
JS::HandleObject in_object,
GIEnumInfo *info)
{
int i, n_values;
/* Fill in enum values first, so we don't define the enum itself until we're
* sure we can finish successfully.
*/
n_values = g_enum_info_get_n_values(info);
for (i = 0; i < n_values; ++i) {
GjsAutoBaseInfo value_info = g_enum_info_get_value(info, i);
if (!gjs_define_enum_value(context, in_object, value_info))
return false;
}
return true;
}
bool
gjs_define_enumeration(JSContext *context,
JS::HandleObject in_object,
GIEnumInfo *info)
{
const char *enum_name;
/* An enumeration is simply an object containing integer attributes for
* each enum value. It does not have a special JSClass.
*
* We could make this more typesafe and also print enum values as strings
* if we created a class for each enum and made the enum values instances
* of that class. However, it would have a lot more overhead and just
* be more complicated in general. I think this is fine.
*/
enum_name = g_base_info_get_name( (GIBaseInfo*) info);
JS::RootedObject enum_obj(context, JS_NewPlainObject(context));
if (!enum_obj) {
gjs_throw(context, "Could not create enumeration %s.%s",
g_base_info_get_namespace(info), enum_name);
return false;
}
GType gtype = g_registered_type_info_get_g_type(info);
if (!gjs_define_enum_values(context, enum_obj, info) ||
!gjs_define_static_methods<InfoType::Enum>(context, enum_obj, gtype,
info) ||
!gjs_wrapper_define_gtype_prop(context, enum_obj, gtype))
return false;
gjs_debug(GJS_DEBUG_GENUM,
"Defining %s.%s as %p",
g_base_info_get_namespace( (GIBaseInfo*) info),
enum_name, enum_obj.get());
if (!JS_DefineProperty(context, in_object, enum_name, enum_obj,
GJS_MODULE_PROP_FLAGS)) {
gjs_throw(context, "Unable to define enumeration property (no memory most likely)");
return false;
}
return true;
}
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