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
16 #include "screen_state_monitor.h"
17
18 #include "common_event_manager.h"
19 #include "common_event_subscriber.h"
20 #include "common_event_support.h"
21 #include "iservice_registry.h"
22 #include "power_mgr_client.h"
23 #include "system_ability_definition.h"
24 #include "system_ability_status_change_stub.h"
25 #include "want.h"
26
27 #include "iam_check.h"
28 #include "iam_logger.h"
29 #include "iam_ptr.h"
30
31 #include "sa_command_manager.h"
32
33 #define LOG_LABEL UserIam::Common::LABEL_FINGERPRINT_AUTH_SA
34
35 namespace OHOS {
36 namespace UserIam {
37 namespace FingerprintAuth {
38 using namespace EventFwk;
39 using namespace AAFwk;
40 using namespace PowerMgr;
41 using ResultCode = UserAuth::ResultCode;
42
43 namespace {
GetCommonEventSubscribeInfo()44 const CommonEventSubscribeInfo GetCommonEventSubscribeInfo()
45 {
46 MatchingSkills matchingSkills;
47 matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_SCREEN_ON);
48 matchingSkills.AddEvent(CommonEventSupport::COMMON_EVENT_SCREEN_OFF);
49 return CommonEventSubscribeInfo(matchingSkills);
50 }
51 } // namespace
52
53 class EventSubscriber : public CommonEventSubscriber, public NoCopyable {
54 public:
EventSubscriber(const CommonEventSubscribeInfo & subscribeInfo)55 explicit EventSubscriber(const CommonEventSubscribeInfo &subscribeInfo) : CommonEventSubscriber(subscribeInfo) {};
~EventSubscriber()56 ~EventSubscriber() override {};
57
58 static std::shared_ptr<EventSubscriber> GetInstance();
59 static ResultCode Subscribe();
60 static void Unsubscribe();
61
62 void OnReceiveEvent(const CommonEventData &eventData) override;
63 };
64
GetInstance()65 std::shared_ptr<EventSubscriber> EventSubscriber::GetInstance()
66 {
67 static auto subscriber = Common::MakeShared<EventSubscriber>(GetCommonEventSubscribeInfo());
68 if (subscriber == nullptr) {
69 IAM_LOGE("EventSubscriber is null");
70 }
71 return subscriber;
72 }
73
Subscribe()74 ResultCode EventSubscriber::Subscribe()
75 {
76 EventSubscriber::Unsubscribe();
77 auto instance = GetInstance();
78 IF_FALSE_LOGE_AND_RETURN_VAL(instance != NULL, ResultCode::GENERAL_ERROR);
79
80 int32_t ret = CommonEventManager::NewSubscribeCommonEvent(instance);
81 if (ret != ERR_OK) {
82 IAM_LOGE("subscribe fail, ret = %{public}d", ret);
83 return ResultCode::GENERAL_ERROR;
84 }
85 IAM_LOGI("subscribe success");
86 return ResultCode::SUCCESS;
87 }
88
Unsubscribe()89 void EventSubscriber::Unsubscribe()
90 {
91 auto instance = GetInstance();
92 IF_FALSE_LOGE_AND_RETURN(instance != NULL);
93
94 int32_t ret = CommonEventManager::NewUnSubscribeCommonEvent(instance);
95 if (ret != ERR_OK) {
96 IAM_LOGE("unsubscribe fail, ret = %{public}d", ret);
97 return;
98 }
99 IAM_LOGI("unsubscribe success");
100 }
101
OnReceiveEvent(const CommonEventData & eventData)102 void EventSubscriber::OnReceiveEvent(const CommonEventData &eventData)
103 {
104 const Want &want = eventData.GetWant();
105 std::string action = want.GetAction();
106
107 if (action != CommonEventSupport::COMMON_EVENT_SCREEN_ON && action != CommonEventSupport::COMMON_EVENT_SCREEN_OFF) {
108 return;
109 }
110 IAM_LOGI("receive event %{public}s", action.c_str());
111 if (action == CommonEventSupport::COMMON_EVENT_SCREEN_ON) {
112 ScreenStateMonitor::GetInstance().SetScreenOn(true);
113 } else {
114 ScreenStateMonitor::GetInstance().SetScreenOn(false);
115 }
116 }
117
GetInstance()118 ScreenStateMonitor &ScreenStateMonitor::GetInstance()
119 {
120 static ScreenStateMonitor monitor;
121 return monitor;
122 }
123
Subscribe()124 void ScreenStateMonitor::Subscribe()
125 {
126 std::lock_guard<std::mutex> lock(mutex_);
127
128 if (isSubscribing_) {
129 IAM_LOGI("duplicate subscribe");
130 return;
131 }
132
133 ResultCode result = EventSubscriber::Subscribe();
134 IF_FALSE_LOGE_AND_RETURN(result == ResultCode::SUCCESS);
135 isSubscribing_ = true;
136 isOn_ = PowerMgrClient::GetInstance().IsScreenOn();
137 IAM_LOGI("screen on %{public}d", isOn_);
138 }
139
Unsubscribe()140 void ScreenStateMonitor::Unsubscribe()
141 {
142 std::lock_guard<std::mutex> lock(mutex_);
143
144 EventSubscriber::Unsubscribe();
145 isSubscribing_ = false;
146 }
147
SetScreenOn(bool isOn)148 void ScreenStateMonitor::SetScreenOn(bool isOn)
149 {
150 std::lock_guard<std::mutex> lock(mutex_);
151
152 isOn_ = isOn;
153 IAM_LOGI("set screen on %{public}d", isOn_);
154 }
155
GetScreenOn()156 bool ScreenStateMonitor::GetScreenOn()
157 {
158 std::lock_guard<std::mutex> lock(mutex_);
159
160 return isOn_;
161 }
162 } // namespace FingerprintAuth
163 } // namespace UserIam
164 } // namespace OHOS