1 /*
2  * Copyright (c) 2024 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 UI_APPEARANCE_UTILS_SETTING_DATA_OBSERVER_H
17 #define UI_APPEARANCE_UTILS_SETTING_DATA_OBSERVER_H
18 
19 #include "data_ability_observer_stub.h"
20 
21 namespace OHOS::ArkUi::UiAppearance {
22 constexpr int32_t INVALID_USER_ID = -1;
23 
24 class SettingDataObserver final : public AAFwk::DataAbilityObserverStub {
25 public:
26     SettingDataObserver() = default;
27 
28     ~SettingDataObserver() override = default;
29 
30     void OnChange() override;
31 
32     void SetKey(const std::string& key);
33 
34     const std::string &GetKey() const;
35 
36     using UpdateFunc = std::function<void(const std::string&, int32_t)>;
37 
38     void SetUpdateFunc(const UpdateFunc& updateFunc);
39 
40     void SetUserId(int32_t userId);
41 
42     int32_t GetUserId() const;
43 
44 private:
45     std::string key_;
46     UpdateFunc updateFunc_;
47     int32_t userId_ = INVALID_USER_ID;
48 };
49 } // namespace OHOS::ArkUi::UiAppearance
50 
51 #endif // UI_APPEARANCE_UTILS_SETTING_DATA_OBSERVER_H
52