1 /*
2  * Copyright (c) 2022 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 FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_STEPPER_STEPPER_MODEL_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_STEPPER_STEPPER_MODEL_H
18 
19 #include <functional>
20 #include <memory>
21 #include <mutex>
22 
23 #include "base/utils/macros.h"
24 
25 namespace OHOS::Ace {
26 
27 class ACE_FORCE_EXPORT StepperModel {
28 public:
29     using RoutineCallbackEvent = std::function<void()>;
30     using IndexCallbackEvent = std::function<void(int32_t, int32_t)>;
31     using IndexChangeEvent = std::function<void(int32_t)>;
32 
33     static StepperModel* GetInstance();
34     virtual ~StepperModel() = default;
35 
36     virtual void Create(uint32_t index) = 0;
37     virtual void SetOnFinish(RoutineCallbackEvent&& eventOnFinish) = 0;
38     virtual void SetOnSkip(RoutineCallbackEvent&& eventOnSkip) = 0;
39     virtual void SetOnChange(IndexCallbackEvent&& eventOnChange) = 0;
40     virtual void SetOnNext(IndexCallbackEvent&& eventOnNext) = 0;
41     virtual void SetOnPrevious(IndexCallbackEvent&& eventOnPrevious) = 0;
42     virtual void SetOnChangeEvent(IndexChangeEvent&& onChangeEvent) = 0;
43 
44 private:
45     static std::unique_ptr<StepperModel> instance_;
46     static std::mutex mutex_;
47 };
48 
49 } // namespace OHOS::Ace
50 
51 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_STEPPER_STEPPER_MODEL_H
52