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 SERVICES_INCLUDE_IME_CFG_MANAGER_H 17 #define SERVICES_INCLUDE_IME_CFG_MANAGER_H 18 19 #include <memory> 20 #include <mutex> 21 #include <string> 22 #include <vector> 23 24 #include "nlohmann/json.hpp" 25 namespace OHOS { 26 namespace MiscServices { 27 struct ImeCfg { 28 int32_t userId; 29 std::string currentIme; 30 }; 31 class ImeCfgManager { 32 public: 33 static ImeCfgManager &GetInstance(); 34 void Init(); 35 void AddImeCfg(const ImeCfg &cfg); 36 void ModifyImeCfg(const ImeCfg &cfg); 37 void DeleteImeCfg(int32_t userId); 38 ImeCfg GetImeCfg(int32_t userId); 39 static std::string GetDefaultIme(); 40 41 private: 42 void ReadImeCfgFile(); 43 void WriteImeCfgFile(); 44 static int32_t CreateCachePath(std::string &path, mode_t pathMode); 45 static bool IsCachePathExit(std::string &path); 46 static bool ReadCacheFile(const std::string &path, nlohmann::json &jsonCfg); 47 static bool WriteCacheFile(const std::string &path, const nlohmann::json &jsonCfg); FromJson(const nlohmann::json & jsonCfg,ImeCfg & cfg)48 inline static void FromJson(const nlohmann::json &jsonCfg, ImeCfg &cfg) 49 { 50 jsonCfg.at("userId").get_to(cfg.userId); 51 jsonCfg.at("currentIme").get_to(cfg.currentIme); 52 } ToJson(nlohmann::json & jsonCfg,const ImeCfg & cfg)53 inline static void ToJson(nlohmann::json &jsonCfg, const ImeCfg &cfg) 54 { 55 jsonCfg = nlohmann::json{ { "userId", cfg.userId }, { "currentIme", cfg.currentIme } }; 56 } 57 static void FromJson(const nlohmann::json &jsonConfigs, std::vector<ImeCfg> &configs); 58 static void ToJson(nlohmann::json &jsonConfigs, const std::vector<ImeCfg> &configs); 59 std::recursive_mutex imeCfgLock_; 60 std::vector<ImeCfg> imeConfigs_; 61 }; 62 } // namespace MiscServices 63 } // namespace OHOS 64 #endif // SERVICES_INCLUDE_IME_CFG_MANAGER_H