1 /* 2 * Copyright (C) 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 ACCESSIBILITY_DISPLAY_MANAGER_H 17 #define ACCESSIBILITY_DISPLAY_MANAGER_H 18 19 #include <memory> 20 #include "display_manager.h" 21 #include "event_handler.h" 22 #include "singleton.h" 23 24 namespace OHOS { 25 namespace Accessibility { 26 class AccessibilityDisplayManager { 27 DECLARE_SINGLETON(AccessibilityDisplayManager) 28 public: 29 const sptr<Rosen::Display> GetDisplay(uint64_t id); 30 std::vector<sptr<Rosen::Display>> GetDisplays(); 31 const sptr<Rosen::Display> GetDefaultDisplay(); 32 uint64_t GetDefaultDisplayId(); 33 34 void RegisterDisplayListener(const std::shared_ptr<AppExecFwk::EventHandler> &handler); 35 void UnregisterDisplayListener(); 36 37 private: 38 class DisplayListener : public Rosen::DisplayManager::IDisplayListener { 39 public: DisplayListener()40 explicit DisplayListener() {} 41 ~DisplayListener() = default; 42 OnCreate(Rosen::DisplayId dId)43 virtual void OnCreate(Rosen::DisplayId dId) override {} OnDestroy(Rosen::DisplayId dId)44 virtual void OnDestroy(Rosen::DisplayId dId) override {} OnChange(Rosen::DisplayId dId)45 virtual void OnChange(Rosen::DisplayId dId) override {} 46 }; 47 48 sptr<DisplayListener> listener_ = nullptr; 49 std::shared_ptr<AppExecFwk::EventHandler> handler_ = nullptr; 50 }; 51 } // namespace Accessibility 52 } // namespace OHOS 53 #endif // ACCESSIBILITY_DISPLAY_MANAGER_H