1 /* 2 * Copyright (C) 2021-2022 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 COMMUNICATIONNETSTACK_EVENT_LISTENER_H 17 #define COMMUNICATIONNETSTACK_EVENT_LISTENER_H 18 19 #include <string> 20 21 #include "napi/native_api.h" 22 #include "nocopyable.h" 23 #include "uv.h" 24 25 namespace OHOS::NetStack { 26 class EventListener { 27 public: 28 EventListener() = delete; 29 30 EventListener(const EventListener &listener); 31 32 EventListener(napi_env env, std::string type, napi_value callback, bool once, bool asyncCallback); 33 34 ~EventListener(); 35 36 EventListener &operator=(const EventListener &listener); 37 38 void Emit(const std::string &eventType, size_t argc, napi_value *argv) const; 39 40 [[nodiscard]] bool Match(const std::string &type, napi_value callback) const; 41 42 [[nodiscard]] bool MatchOnce(const std::string &type) const; 43 44 [[nodiscard]] bool MatchType(const std::string &type) const; 45 46 [[nodiscard]] bool IsAsyncCallback() const; 47 48 void EmitByUv(const std::string &type, void *data, void(Handler)(uv_work_t *, int status)) const; 49 50 [[nodiscard]] napi_env GetEnv() const; 51 52 [[nodiscard]] napi_ref GetCallbackRef() const; 53 54 private: 55 napi_env env_; 56 57 std::string type_; 58 59 bool once_; 60 61 napi_ref callbackRef_; 62 63 bool asyncCallback_; 64 }; 65 } // namespace OHOS::NetStack 66 67 #endif /* COMMUNICATIONNETSTACK_EVENT_LISTENER_H */ 68