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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 #include "accessibility_display_manager.h"
17 #include "accessible_ability_manager_service.h"
18 #include "hilog_wrapper.h"
19 
20 namespace OHOS {
21 namespace Accessibility {
22 
23 constexpr int32_t DEFAULT_DPI = 540;
24 
AccessibilityDisplayManager()25 AccessibilityDisplayManager::AccessibilityDisplayManager()
26 {
27 }
28 
~AccessibilityDisplayManager()29 AccessibilityDisplayManager::~AccessibilityDisplayManager()
30 {
31     UnregisterDisplayListener();
32 }
33 
GetDisplay(uint64_t id)34 const sptr<Rosen::Display> AccessibilityDisplayManager::GetDisplay(uint64_t id)
35 {
36     HILOG_DEBUG();
37     return Rosen::DisplayManager::GetInstance().GetDisplayById(id);
38 }
39 
GetDisplays()40 std::vector<sptr<Rosen::Display>> AccessibilityDisplayManager::GetDisplays()
41 {
42     HILOG_DEBUG();
43     return Rosen::DisplayManager::GetInstance().GetAllDisplays();
44 }
45 
GetDefaultDisplay()46 const sptr<Rosen::Display> AccessibilityDisplayManager::GetDefaultDisplay()
47 {
48     HILOG_DEBUG();
49     return Rosen::DisplayManager::GetInstance().GetDefaultDisplay();
50 }
51 
GetDefaultDisplayId()52 uint64_t AccessibilityDisplayManager::GetDefaultDisplayId()
53 {
54     HILOG_DEBUG();
55     return Rosen::DisplayManager::GetInstance().GetDefaultDisplayId();
56 }
57 
GetDefaultDisplayDpi()58 int32_t AccessibilityDisplayManager::GetDefaultDisplayDpi()
59 {
60     HILOG_DEBUG();
61     if (GetDefaultDisplay() == nullptr) {
62         HILOG_ERROR("default display is null");
63         return DEFAULT_DPI;
64     }
65 
66     return GetDefaultDisplay()->GetDpi();
67 }
68 
IsFoldable()69 bool AccessibilityDisplayManager::IsFoldable()
70 {
71     HILOG_DEBUG();
72     return Rosen::DisplayManager::GetInstance().IsFoldable();
73 }
74 
GetFoldDisplayMode()75 Rosen::FoldDisplayMode AccessibilityDisplayManager::GetFoldDisplayMode()
76 {
77     HILOG_DEBUG();
78     return Rosen::DisplayManager::GetInstance().GetFoldDisplayMode();
79 }
80 
RegisterDisplayListener(const std::shared_ptr<AppExecFwk::EventHandler> & handler)81 void AccessibilityDisplayManager::RegisterDisplayListener(
82     const std::shared_ptr<AppExecFwk::EventHandler> &handler)
83 {
84     HILOG_DEBUG();
85     if (listener_) {
86         HILOG_DEBUG("Display listener is already registed!");
87         return;
88     }
89     handler_ = handler;
90     listener_ = new(std::nothrow) DisplayListener();
91     if (!listener_) {
92         HILOG_ERROR("Create display listener fail!");
93         return;
94     }
95     Rosen::DisplayManager::GetInstance().RegisterDisplayListener(listener_);
96 }
97 
UnregisterDisplayListener()98 void AccessibilityDisplayManager::UnregisterDisplayListener()
99 {
100     HILOG_DEBUG();
101     if (listener_) {
102         Rosen::DisplayManager::GetInstance().UnregisterDisplayListener(listener_);
103         listener_ = nullptr;
104         handler_ = nullptr;
105     }
106 }
107 } // namespace Accessibility
108 } // namespace OHOS