1 /* 2 * Copyright (c) 2021-2022 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 DISPLAYMGR_SCREEN_ACTION_H 17 #define DISPLAYMGR_SCREEN_ACTION_H 18 19 #include <cstdint> 20 #include <functional> 21 #include <memory> 22 #include <mutex> 23 #include <vector> 24 25 #include "display_power_info.h" 26 27 namespace OHOS { 28 namespace DisplayPowerMgr { 29 class ScreenAction { 30 public: 31 ScreenAction(uint32_t displayId); 32 ~ScreenAction() = default; 33 34 static uint32_t GetDefaultDisplayId(); 35 static std::vector<uint32_t> GetAllDisplayId(); 36 37 uint32_t GetDisplayId(); 38 DisplayState GetDisplayState(); 39 bool SetDisplayState(DisplayState state, const std::function<void(DisplayState)>& callback); 40 bool SetDisplayPower(DisplayState state, uint32_t reason); 41 uint32_t GetBrightness(); 42 bool SetBrightness(uint32_t value); 43 44 private: 45 static constexpr uint32_t DEFAULT_DISPLAY_ID = 0; 46 std::mutex mutexBrightness_; 47 uint32_t brightness_ {102}; 48 uint32_t displayId_ {DEFAULT_DISPLAY_ID}; 49 }; 50 } // namespace DisplayPowerMgr 51 } // namespace OHOS 52 #endif // DISPLAYMGR_SCREEN_ACTION_H 53