1 /*
2 * Copyright (c) 2023 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 #include "display_setting_helper.h"
16
17 #include "display_log.h"
18 #include "setting_provider.h"
19 #include "system_ability_definition.h"
20
21 namespace OHOS {
22 namespace DisplayPowerMgr {
23 namespace {
24 constexpr int32_t AUTO_BRIGHTNESS_DISABLE = 0;
25 constexpr int32_t AUTO_BRIGHTNESS_ENABLE = 1;
26 }
27 using namespace OHOS::PowerMgr;
28 sptr<SettingObserver> DisplaySettingHelper::autoBrightnessObserver_;
29 sptr<SettingObserver> DisplaySettingHelper::brightnessObserver_;
30
RegisterSettingBrightnessObserver(SettingObserver::UpdateFunc func)31 void DisplaySettingHelper::RegisterSettingBrightnessObserver(SettingObserver::UpdateFunc func)
32 {
33 if (brightnessObserver_) {
34 DISPLAY_HILOGD(FEAT_BRIGHTNESS, "setting brightness observer is already registered");
35 return;
36 }
37 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
38 brightnessObserver_ = provider.CreateObserver(SETTING_BRIGHTNESS_KEY, func);
39 ErrCode ret = provider.RegisterObserver(brightnessObserver_);
40 if (ret != ERR_OK) {
41 DISPLAY_HILOGW(FEAT_BRIGHTNESS, "register setting brightness observer failed, ret=%{public}d", ret);
42 brightnessObserver_ = nullptr;
43 }
44 }
45
UnregisterSettingBrightnessObserver()46 void DisplaySettingHelper::UnregisterSettingBrightnessObserver()
47 {
48 if (brightnessObserver_ == nullptr) {
49 DISPLAY_HILOGD(FEAT_BRIGHTNESS, "brightnessObserver_ is nullptr, no need to unregister");
50 return;
51 }
52 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
53 ErrCode ret = provider.UnregisterObserver(brightnessObserver_);
54 if (ret != ERR_OK) {
55 DISPLAY_HILOGW(FEAT_BRIGHTNESS, "unregister setting brightness observer failed, ret=%{public}d", ret);
56 }
57 brightnessObserver_ = nullptr;
58 }
59
SetSettingBrightness(uint32_t value)60 void DisplaySettingHelper::SetSettingBrightness(uint32_t value)
61 {
62 uint32_t settingBrightness;
63 if (GetSettingBrightness(settingBrightness) != ERR_OK) {
64 return;
65 }
66 if (value == static_cast<uint32_t>(settingBrightness)) {
67 DISPLAY_HILOGD(FEAT_BRIGHTNESS, "no need to set setting brightness");
68 return;
69 }
70 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
71 auto ret = provider.PutIntValue(SETTING_BRIGHTNESS_KEY, static_cast<int32_t>(value));
72 if (ret != ERR_OK) {
73 DISPLAY_HILOGW(FEAT_BRIGHTNESS, "set setting brightness failed, ret=%{public}d", ret);
74 return;
75 }
76 DISPLAY_HILOGD(FEAT_BRIGHTNESS, "set setting brightness=%{public}u", value);
77 }
78
GetSettingBrightness(uint32_t & brightness,const std::string & key)79 ErrCode DisplaySettingHelper::GetSettingBrightness(uint32_t& brightness, const std::string& key)
80 {
81 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
82 int32_t value;
83 ErrCode ret = provider.GetIntValue(key, value);
84 if (ret != ERR_OK) {
85 DISPLAY_HILOGW(FEAT_BRIGHTNESS, "get setting brightness failed, ret=%{public}d", ret);
86 return ret;
87 }
88 brightness = static_cast<uint32_t>(value);
89 return ERR_OK;
90 }
91
RegisterSettingAutoBrightnessObserver(SettingObserver::UpdateFunc func)92 void DisplaySettingHelper::RegisterSettingAutoBrightnessObserver(SettingObserver::UpdateFunc func)
93 {
94 DISPLAY_HILOGI(FEAT_BRIGHTNESS, "Register setting auto brightness observer start");
95 if (autoBrightnessObserver_) {
96 DISPLAY_HILOGD(FEAT_BRIGHTNESS, "setting auto brightness observer is already registered");
97 return;
98 }
99 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
100 autoBrightnessObserver_ = provider.CreateObserver(SETTING_AUTO_ADJUST_BRIGHTNESS_KEY, func);
101 ErrCode ret = provider.RegisterObserver(autoBrightnessObserver_);
102 if (ret != ERR_OK) {
103 DISPLAY_HILOGW(FEAT_BRIGHTNESS, "register setting auto brightness observer failed, ret=%{public}d", ret);
104 autoBrightnessObserver_ = nullptr;
105 }
106 DISPLAY_HILOGI(FEAT_BRIGHTNESS, "Register setting auto brightness observer end");
107 }
UnregisterSettingAutoBrightnessObserver()108 void DisplaySettingHelper::UnregisterSettingAutoBrightnessObserver()
109 {
110 if (autoBrightnessObserver_ == nullptr) {
111 DISPLAY_HILOGD(FEAT_BRIGHTNESS, "autoBrightnessObserver_ is nullptr, no need to unregister");
112 return;
113 }
114 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
115 ErrCode ret = provider.UnregisterObserver(autoBrightnessObserver_);
116 if (ret != ERR_OK) {
117 DISPLAY_HILOGW(FEAT_BRIGHTNESS, "unregister setting auto brightness observer failed, ret=%{public}d", ret);
118 }
119 autoBrightnessObserver_ = nullptr;
120 }
121
SetSettingAutoBrightness(bool enable)122 void DisplaySettingHelper::SetSettingAutoBrightness(bool enable)
123 {
124 DISPLAY_HILOGI(FEAT_BRIGHTNESS, "SetSettingAutoBrightness mode, enable=%{public}d", enable);
125 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
126 int32_t value = enable ? AUTO_BRIGHTNESS_ENABLE : AUTO_BRIGHTNESS_DISABLE;
127 ErrCode ret = provider.PutIntValue(SETTING_AUTO_ADJUST_BRIGHTNESS_KEY, value);
128 if (ret != ERR_OK) {
129 DISPLAY_HILOGW(
130 FEAT_BRIGHTNESS, "set setting auto brightness failed, enable=%{public}d, ret=%{public}d", enable, ret);
131 }
132 }
GetSettingAutoBrightness(const std::string & key)133 bool DisplaySettingHelper::GetSettingAutoBrightness(const std::string& key)
134 {
135 SettingProvider& provider = SettingProvider::GetInstance(DISPLAY_MANAGER_SERVICE_ID);
136 int32_t value;
137 ErrCode ret = provider.GetIntValue(key, value);
138 if (ret != ERR_OK) {
139 DISPLAY_HILOGW(
140 FEAT_BRIGHTNESS, "get setting auto brightness failed key=%{public}s, ret=%{public}d", key.c_str(), ret);
141 }
142 return (value == AUTO_BRIGHTNESS_ENABLE);
143 }
144 } // namespace DisplayPowerMgr
145 } // namespace OHOS