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 OHOS_ROSEN_DISPLAY_CHANGE_LISTENER_H 17 #define OHOS_ROSEN_DISPLAY_CHANGE_LISTENER_H 18 19 #include <refbase.h> 20 21 namespace OHOS { 22 namespace Rosen { 23 enum class DisplayStateChangeType : uint32_t { 24 BEFORE_SUSPEND, 25 BEFORE_UNLOCK, 26 UPDATE_ROTATION, 27 SIZE_CHANGE, 28 DESTROY, 29 FREEZE, 30 UNFREEZE, 31 }; 32 class IDisplayChangeListener : public RefBase { 33 public: 34 virtual void OnDisplayStateChange(DisplayId id, DisplayStateChangeType type) = 0; 35 }; 36 } 37 } 38 #endif // OHOS_ROSEN_DISPLAY_CHANGE_LISTENER_H 39