1 /* 2 * Copyright (c) 2025 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_EDM_INCLUDE_UTILS_WATERMARK_OBSERVER_MANAGER_H 17 #define SERVICES_EDM_INCLUDE_UTILS_WATERMARK_OBSERVER_MANAGER_H 18 19 #include "app_mgr_interface.h" 20 #include "edm_sys_manager.h" 21 #include "watermark_application_observer.h" 22 #include "iwatermark_observer_manager.h" 23 24 namespace OHOS { 25 namespace EDM { 26 class WatermarkObserverManager : public IWatermarkObserverManager { 27 public: 28 bool SubscribeAppStateObserver() override; 29 bool UnSubscribeAppStateObserver() override; 30 static WatermarkObserverManager* GetInstance(); 31 private: 32 sptr<AppExecFwk::IAppMgr> GetAppManager(); 33 sptr<AppExecFwk::IApplicationStateObserver> observer_; 34 static WatermarkObserverManager* instance_; 35 static std::once_flag flag_; 36 }; 37 } // namespace EDM 38 } // namespace OHOS 39 #endif // SERVICES_EDM_INCLUDE_UTILS_WATERMARK_OBSERVER_MANAGER_H