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 OHOS_JS_OBSERVER_H
17 #define OHOS_JS_OBSERVER_H
18 
19 #include <memory>
20 #include "uv_queue.h"
21 
22 namespace OHOS::PreferencesJsKit {
23 class JSObserver : public std::enable_shared_from_this<JSObserver> {
24 public:
25     JSObserver(std::shared_ptr<UvQueue> uvQueue, napi_value callback, bool sendable);
26     virtual ~JSObserver();
27     napi_ref GetCallback();
28     void ClearCallback();
29     napi_env GetEnv();
30 protected:
31     void AsyncCall(UvQueue::NapiArgsGenerator genArgs = UvQueue::NapiArgsGenerator());
32 
33 private:
34     std::weak_ptr<UvQueue> uvQueue_;
35     napi_ref callback_;
36     bool sendabel_;
37 };
38 } // namespace OHOS::PreferencesJsKit
39 #endif // OHOS_JS_OBSERVER_H
40