1package glib
2
3// #include <gio/gio.h>
4// #include <glib.h>
5// #include <glib-object.h>
6// #include "glib.go.h"
7import "C"
8import (
9	"errors"
10	"unsafe"
11)
12
13// IAsyncResult is an interface representation of AsyncResult,
14// used to avoid duplication when embedding the type in a wrapper of another GObject-based type.
15type IAsyncResult interface {
16	GetUserData() uintptr
17	GetSourceObject() *Object
18	IsTagged(sourceTag uintptr) bool
19	LegacyPropagateError() error
20}
21
22// AsyncReadyCallback is a representation of GAsyncReadyCallback
23type AsyncReadyCallback func(object *Object, res *AsyncResult)
24
25// AsyncResult is a representation of GIO's GAsyncResult.
26type AsyncResult struct {
27	*Object
28}
29
30// native() returns a pointer to the underlying GAsyncResult.
31func (v *AsyncResult) native() *C.GAsyncResult {
32	if v == nil || v.GObject == nil {
33		return nil
34	}
35	return C.toGAsyncResult(unsafe.Pointer(v.GObject))
36}
37
38func wrapAsyncResult(obj *Object) *AsyncResult {
39	return &AsyncResult{obj}
40}
41
42// GetUserData is a wrapper around g_async_result_get_user_data()
43func (v *AsyncResult) GetUserData() uintptr {
44	c := C.g_async_result_get_user_data(v.native())
45	return uintptr(unsafe.Pointer(c))
46}
47
48// GetSourceObject is a wrapper around g_async_result_get_source_object
49func (v *AsyncResult) GetSourceObject() *Object {
50	obj := C.g_async_result_get_source_object(v.native())
51	if obj == nil {
52		return nil
53	}
54	return wrapObject(unsafe.Pointer(obj))
55}
56
57// IsTagged is a wrapper around g_async_result_is_tagged
58func (v *AsyncResult) IsTagged(sourceTag uintptr) bool {
59	c := C.g_async_result_is_tagged(v.native(), C.gpointer(sourceTag))
60	return gobool(c)
61}
62
63// LegacyPropagateError is a wrapper around g_async_result_legacy_propagate_error
64func (v *AsyncResult) LegacyPropagateError() error {
65	var err *C.GError
66	c := C.g_async_result_legacy_propagate_error(v.native(), &err)
67	isSimpleAsyncResult := gobool(c)
68	if isSimpleAsyncResult {
69		defer C.g_error_free(err)
70		return errors.New(C.GoString((*C.char)(err.message)))
71	}
72	return nil
73}
74