1 /* 2 * Copyright (c) 2023 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 IMF_FOCUS_MONITOR_MANAGER_H 17 #define IMF_FOCUS_MONITOR_MANAGER_H 18 19 #include <functional> 20 21 namespace OHOS { 22 namespace MiscServices { 23 using FocusHandle = std::function<void(bool, int32_t, int32_t)>; 24 class FocusMonitorManager { 25 public: 26 static FocusMonitorManager &GetInstance(); 27 void RegisterFocusChangedListener(const FocusHandle &handle); 28 29 private: 30 FocusMonitorManager() = default; 31 }; 32 } // namespace MiscServices 33 } // namespace OHOS 34 35 #endif // IMF_FOCUS_MONITOR_MANAGER_H 36