1 /*
2  * Copyright (c) 2020-2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef HI_STATE_MACHINE_OBSERVER_H
17 #define HI_STATE_MACHINE_OBSERVER_H
18 
19 #include "hi_state.h"
20 
21 namespace OHOS {
22 class HiStateMachine;
23 
24 class HiStateMachineObserver {
25 public:
26     HiStateMachineObserver();
27     virtual ~HiStateMachineObserver();
28 
29     virtual void OnFinalState(const HiState &state);
30     virtual void OnEventHandled(const HiStateMachine &stateMachine, int32_t event, int32_t result) = 0;
31 };
32 };
33 #endif
34