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 SYSTEM_BATTERY_H 17 #define SYSTEM_BATTERY_H 18 19 #include <cstdint> 20 #include <iosfwd> 21 #include "errors.h" 22 #include "napi/native_api.h" 23 #include "napi/native_node_api.h" 24 #include "battery_info.h" 25 26 namespace OHOS { 27 namespace PowerMgr { 28 class SystemBattery { 29 public: 30 void GetBatteryStats(napi_env env); 31 bool CheckValueType(napi_env env, napi_value value, napi_valuetype checkType); 32 bool CreateCallbackRef(napi_env env, napi_value options); 33 34 napi_async_work asyncWork = nullptr; 35 private: 36 class Error { 37 public: 38 void SetErrorMsg(int32_t code, const std::string& msg); IsError()39 inline bool IsError() const 40 { 41 return !msg_.empty() && (code_ != ERR_OK); 42 } GetCode()43 inline int32_t GetCode() const 44 { 45 return code_; 46 } GetMsg()47 inline std::string GetMsg() const 48 { 49 return msg_; 50 } 51 private: 52 int32_t code_ { ERR_OK }; 53 std::string msg_; 54 }; 55 56 class BatteryInfo { 57 public: 58 bool GetBatteryInfo(); 59 double GetLevel() const; 60 uint32_t IsCharging() const; 61 62 private: 63 int32_t capacity_ { INVALID_BATT_INT_VALUE }; 64 BatteryChargeState chargingState_; 65 }; 66 67 napi_value GetOptionsFunc(napi_env env, napi_value options, const std::string& name); 68 napi_value CreateResponse(napi_env env); 69 void SuccessCallback(napi_env env); 70 void FailCallback(napi_env env); 71 void CompleteCallback(napi_env env); 72 73 Error error_; 74 BatteryInfo batteryInfo_; 75 napi_ref successRef_ = nullptr; 76 napi_ref failRef_ = nullptr; 77 napi_ref completeRef_ = nullptr; 78 }; 79 } // namespace PowerMgr 80 } // namespace OHOS 81 82 #endif // SYSTEM_BATTERY_H 83