1 /* 2 * Copyright (c) 2021 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 PREFERENCES_JSKIT_NAPI_PREFERENCE_H 17 #define PREFERENCES_JSKIT_NAPI_PREFERENCE_H 18 19 #include <assert.h> 20 21 #include <list> 22 #include <set> 23 24 #include "js_observer.h" 25 #include "js_proxy.h" 26 #include "js_common_utils.h" 27 #include "napi/native_api.h" 28 #include "napi/native_common.h" 29 #include "napi/native_node_api.h" 30 #include "napi_preferences_observer.h" 31 #include "preferences.h" 32 #include "preferences_helper.h" 33 34 namespace OHOS { 35 namespace PreferencesJsKit { 36 using RegisterMode = NativePreferences::PreferencesObserver::RegisterMode; 37 using Preferences = NativePreferences::Preferences; 38 template<typename T> 39 using JSProxy = OHOS::JSProxy::JSProxy<T>; 40 class PreferencesProxy : public JSProxy<Preferences> { 41 public: 42 static void Init(napi_env env, napi_value exports); 43 static napi_value New(napi_env env, napi_callback_info info); 44 static napi_status NewInstance(napi_env env, std::shared_ptr<Preferences> value, napi_value *instance); 45 static void Destructor(napi_env env, void *nativeObject, void *finalize_hint); 46 47 private: 48 static constexpr char STR_CHANGE[] = "change"; 49 static constexpr char STR_MULTI_PRECESS_CHANGE[] = "multiProcessChange"; 50 static constexpr const char* STR_DATA_CHANGE = "dataChange"; 51 explicit PreferencesProxy(); 52 ~PreferencesProxy(); 53 54 static napi_value GetValue(napi_env env, napi_callback_info info); 55 static napi_value SetValue(napi_env env, napi_callback_info info); 56 static napi_value HasKey(napi_env env, napi_callback_info info); 57 static napi_value Delete(napi_env env, napi_callback_info info); 58 static napi_value Flush(napi_env env, napi_callback_info info); 59 static napi_value Clear(napi_env env, napi_callback_info info); 60 static napi_value RegisterObserver(napi_env env, napi_callback_info info); 61 static napi_value UnRegisterObserver(napi_env env, napi_callback_info info); 62 static napi_value GetAll(napi_env env, napi_callback_info info); 63 64 static std::pair<PreferencesProxy *, std::weak_ptr<Preferences>> GetSelfInstance(napi_env env, napi_value self); 65 static RegisterMode ConvertToRegisterMode(const std::string &mode); 66 static napi_value RegisterDataObserver(napi_env env, size_t argc, napi_value *argv, napi_value self); 67 static napi_value UnRegisterDataObserver(napi_env env, size_t argc, napi_value *argv, napi_value self); 68 bool HasRegisteredObserver(napi_value callback, RegisterMode mode); 69 int RegisteredObserver(napi_value callback, RegisterMode mode); 70 int UnRegisteredObserver(napi_value callback, RegisterMode mode); 71 int UnRegisteredAllObservers(RegisterMode mode, const std::vector<std::string> &keys = {}); 72 int RegisteredDataObserver(const std::vector<std::string> &keys, napi_value callback); 73 int UnRegisteredDataObserver(const std::vector<std::string> &keys, napi_value callback); 74 napi_env env_; 75 76 std::mutex listMutex_ {}; 77 std::list<std::shared_ptr<JSPreferencesObserver>> localObservers_; 78 std::list<std::shared_ptr<JSPreferencesObserver>> multiProcessObservers_; 79 std::list<std::shared_ptr<JSPreferencesObserver>> dataObservers_; 80 std::shared_ptr<UvQueue> uvQueue_; 81 }; 82 } // namespace PreferencesJsKit 83 } // namespace OHOS 84 85 #endif // PREFERENCES_JSKIT_NAPI_PREFERENCE_H