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_DM_NATIVE_EVENT_H
17 #define OHOS_DM_NATIVE_EVENT_H
18 
19 #include <map>
20 #include <memory>
21 #include <mutex>
22 #include <string>
23 
24 #include "napi/native_api.h"
25 
26 struct DmEventListener {
27     std::string eventType;
28     napi_ref handlerRef = nullptr;
29 };
30 
31 class DmNativeEvent {
32 public:
33     DmNativeEvent(napi_env env, napi_value thisVar);
34     virtual ~DmNativeEvent();
35 
36     virtual void On(std::string &eventType, napi_value handler);
37     virtual void Off(std::string &eventType);
38     virtual void OnEvent(const std::string &eventType, size_t argc, const napi_value *argv);
39 
40 protected:
41     napi_env env_;
42     napi_ref thisVarRef_;
43     std::map<std::string, std::shared_ptr<DmEventListener>> eventMap_;
44 #if !defined(__LITEOS_M__)
45     std::mutex lock_;
46 #endif
47 };
48 #endif // OHOS_DM_NATIVE_EVENT_H
49