/* * Copyright (c) 2024 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef DISTRIBUTEDDATAMGR_FRAMEWORK_SCREEN_LOCK_H #define DISTRIBUTEDDATAMGR_FRAMEWORK_SCREEN_LOCK_H #include #include #include "visibility.h" namespace OHOS { namespace DistributedData { class ScreenManager { public: API_EXPORT static std::shared_ptr GetInstance(); API_EXPORT static bool RegisterInstance(std::shared_ptr instance); ScreenManager() = default; virtual ~ScreenManager() = default; virtual bool IsLocked(); private: static std::mutex mutex_; static std::shared_ptr instance_; }; } // namespace DistributedData } // namespace OHOS #endif //DISTRIBUTEDDATAMGR_FRAMEWORK_SCREEN_LOCK_H