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 ACCESSIBILITY_SETTING_PROVIDER_H 17 #define ACCESSIBILITY_SETTING_PROVIDER_H 18 19 #include "datashare_helper.h" 20 #include "errors.h" 21 #include "mutex" 22 #include "accessibility_setting_observer.h" 23 #include "accessibility_caption.h" 24 25 namespace OHOS { 26 namespace Accessibility { 27 class AccessibilitySettingProvider : public NoCopyable { 28 public: 29 static AccessibilitySettingProvider& GetInstance(int32_t systemAbilityId); 30 void DeleteInstance(); 31 ErrCode GetStringValue(const std::string& key, std::string& value); 32 ErrCode GetIntValue(const std::string& key, int32_t& value); 33 ErrCode GetLongValue(const std::string& key, int64_t& value); 34 ErrCode GetBoolValue(const std::string& key, bool& value); 35 ErrCode GetFloatValue(const std::string& key, float& value); 36 ErrCode PutStringValue(const std::string& key, const std::string& value, bool needNotify = true); 37 ErrCode PutIntValue(const std::string& key, int32_t value, bool needNotify = true); 38 ErrCode PutLongValue(const std::string& key, int64_t value, bool needNotify = true); 39 ErrCode PutBoolValue(const std::string& key, bool value, bool needNotify = true); 40 bool IsValidKey(const std::string& key); 41 sptr<AccessibilitySettingObserver> CreateObserver(const std::string& key, 42 AccessibilitySettingObserver::UpdateFunc& func); 43 ErrCode RegisterObserver(const sptr<AccessibilitySettingObserver>& observer); 44 ErrCode UnregisterObserver(const sptr<AccessibilitySettingObserver>& observer); 45 46 protected: 47 ~AccessibilitySettingProvider() override; 48 49 private: 50 static AccessibilitySettingProvider* instance_; 51 static std::mutex mutex_; 52 static sptr<IRemoteObject> remoteObj_; 53 54 static void Initialize(int32_t systemAbilityId); 55 static std::shared_ptr<DataShare::DataShareHelper> CreateDataShareHelper(); 56 static bool ReleaseDataShareHelper(std::shared_ptr<DataShare::DataShareHelper>& helper); 57 static Uri AssembleUri(const std::string& key); 58 }; 59 } // namespace Accessibility 60 } // namespace OHOS 61 #endif // ACCESSIBILITY_SETTING_PROVIDER_H