| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROMEOS_DBUS_DBUS_METHOD_CALL_STATUS_H_ |
| #define CHROMEOS_DBUS_DBUS_METHOD_CALL_STATUS_H_ |
| |
| // TODO(hidehiko): Rename this file to dbus_callback.h, when we fully |
| // get rid of DBusMethodCallStatus enum defined below. |
| |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/component_export.h" |
| #include "base/optional.h" |
| |
| namespace dbus { |
| |
| class ObjectPath; |
| |
| } // namespace dbus |
| |
| namespace chromeos { |
| |
| // DEPRECATED. Migrating to DBusMethodCallback style. |
| // TODO(hidehiko): Remove this when migration is completed. |
| // An enum to describe whether or not a DBus method call succeeded. |
| enum DBusMethodCallStatus { |
| DBUS_METHOD_CALL_FAILURE, |
| DBUS_METHOD_CALL_SUCCESS, |
| }; |
| |
| // Callback to handle response of methods with result. |
| // If the method returns multiple values, std::tuple<...> will be used. |
| // In case of error, nullopt should be passed. |
| template <typename ResultType> |
| using DBusMethodCallback = |
| base::OnceCallback<void(base::Optional<ResultType> result)>; |
| |
| // Callback to handle response of methods without result. |
| // |result| is true if the method call is successfully completed, otherwise |
| // false. |
| using VoidDBusMethodCallback = base::OnceCallback<void(bool result)>; |
| |
| // TODO(crbug.com/739622): Use OnceCallback in following definition, too. |
| |
| // A callback to handle responses of methods returning a ObjectPath value that |
| // doesn't get call status. |
| typedef base::Callback<void(const dbus::ObjectPath& result)> ObjectPathCallback; |
| |
| // Called when service becomes available. |
| using WaitForServiceToBeAvailableCallback = |
| base::OnceCallback<void(bool service_is_available)>; |
| |
| // Returns an empty callback that does nothing. |
| COMPONENT_EXPORT(CHROMEOS_DBUS) |
| VoidDBusMethodCallback EmptyVoidDBusMethodCallback(); |
| |
| } // namespace chromeos |
| |
| #endif // CHROMEOS_DBUS_DBUS_METHOD_CALL_STATUS_H_ |