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 "display_info.h"
22 #include "dm_common.h"
23 #include "event_handler.h"
24 #include "singleton.h"
25 
26 namespace OHOS {
27 namespace Accessibility {
28 class AccessibilityDisplayManager {
29     DECLARE_SINGLETON(AccessibilityDisplayManager)
30 public:
31     const sptr<Rosen::Display> GetDisplay(uint64_t id);
32     std::vector<sptr<Rosen::Display>> GetDisplays();
33     const sptr<Rosen::Display> GetDefaultDisplay();
34     uint64_t GetDefaultDisplayId();
35     int32_t GetDefaultDisplayDpi();
36     sptr<Rosen::Display> GetDefaultDisplaySync();
37     int32_t GetWidth();
38     int32_t GetHeight();
39     OHOS::Rosen::DisplayOrientation GetOrientation();
40     bool IsFoldable();
41     Rosen::FoldDisplayMode GetFoldDisplayMode();
42     Rosen::FoldStatus GetFoldStatus();
43     void SetDisplayScale(const uint64_t screenId, float scaleX, float scaleY, float pivotX, float pivotY);
44 
45     void RegisterDisplayListener(const std::shared_ptr<AppExecFwk::EventHandler> &handler);
46     void UnregisterDisplayListener();
47 
48 private:
49     class DisplayListener : public Rosen::DisplayManager::IDisplayListener {
50     public:
DisplayListener()51         explicit DisplayListener() {}
52         ~DisplayListener() = default;
53 
OnCreate(Rosen::DisplayId dId)54         virtual void OnCreate(Rosen::DisplayId dId) override {}
OnDestroy(Rosen::DisplayId dId)55         virtual void OnDestroy(Rosen::DisplayId dId) override {}
OnChange(Rosen::DisplayId dId)56         virtual void OnChange(Rosen::DisplayId dId) override {}
57     };
58 
59     sptr<DisplayListener> listener_ = nullptr;
60     std::shared_ptr<AppExecFwk::EventHandler> handler_ = nullptr;
61 };
62 } // namespace Accessibility
63 } // namespace OHOS
64 #endif // ACCESSIBILITY_DISPLAY_MANAGER_H