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 "screenlock_app_manager.h"
17
18 #include "if_system_ability_manager.h"
19 #include "iservice_registry.h"
20 #include "sclock_log.h"
21 #include "screenlock_common.h"
22 #include "system_ability_definition.h"
23
24 namespace OHOS {
25 namespace ScreenLock {
26 std::mutex ScreenLockAppManager::instanceLock_;
27 sptr<ScreenLockAppManager> ScreenLockAppManager::instance_;
28 sptr<ScreenLockAppDeathRecipient> ScreenLockAppManager::deathRecipient_;
29 std::mutex ScreenLockAppManager::listenerLock_;
30 sptr<ScreenLockSystemAbilityInterface> ScreenLockAppManager::systemEventListener_;
31
ScreenLockAppManager()32 ScreenLockAppManager::ScreenLockAppManager()
33 {
34 }
35
~ScreenLockAppManager()36 ScreenLockAppManager::~ScreenLockAppManager()
37 {
38 }
39
GetInstance()40 sptr<ScreenLockAppManager> ScreenLockAppManager::GetInstance()
41 {
42 if (instance_ == nullptr) {
43 std::lock_guard<std::mutex> autoLock(instanceLock_);
44 if (instance_ == nullptr) {
45 instance_ = new ScreenLockAppManager;
46 std::lock_guard<std::mutex> guard(instance_->managerProxyLock_);
47 instance_->screenlockManagerProxy_ = GetScreenLockManagerProxy();
48 }
49 }
50 return instance_;
51 }
52
SendScreenLockEvent(const std::string & event,int param)53 int32_t ScreenLockAppManager::SendScreenLockEvent(const std::string &event, int param)
54 {
55 auto proxy = GetProxy();
56 if (proxy == nullptr) {
57 SCLOCK_HILOGE("ScreenLockAppManager::SendScreenLockEvent quit because redoing GetScreenLockManagerProxy "
58 "failed.");
59 return E_SCREENLOCK_NULLPTR;
60 }
61 int ret = proxy->SendScreenLockEvent(event, param);
62 SCLOCK_HILOGD("SendScreenLockEvent result = %{public}d", ret);
63 return ret;
64 }
65
OnSystemEvent(const sptr<ScreenLockSystemAbilityInterface> & listener)66 int32_t ScreenLockAppManager::OnSystemEvent(const sptr<ScreenLockSystemAbilityInterface> &listener)
67 {
68 SCLOCK_HILOGD("ScreenLockAppManager::OnSystemEvent in");
69 auto proxy = GetProxy();
70 if (proxy == nullptr) {
71 SCLOCK_HILOGE("ScreenLockAppManager::OnSystemEvent quit because redoing GetScreenLockManagerProxy failed.");
72 return E_SCREENLOCK_NULLPTR;
73 }
74 if (listener == nullptr) {
75 SCLOCK_HILOGE("listener is nullptr.");
76 return E_SCREENLOCK_NULLPTR;
77 }
78 listenerLock_.lock();
79 systemEventListener_ = listener;
80 listenerLock_.unlock();
81 int32_t status = proxy->OnSystemEvent(listener);
82 SCLOCK_HILOGD("ScreenLockAppManager::OnSystemEvent out, status=%{public}d", status);
83 return status;
84 }
85
GetScreenLockManagerProxy()86 sptr<ScreenLockManagerInterface> ScreenLockAppManager::GetScreenLockManagerProxy()
87 {
88 sptr<ISystemAbilityManager> systemAbilityManager =
89 SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
90 if (systemAbilityManager == nullptr) {
91 SCLOCK_HILOGE("Getting SystemAbilityManager failed.");
92 return nullptr;
93 }
94 auto systemAbility = systemAbilityManager->GetSystemAbility(SCREENLOCK_SERVICE_ID, "");
95 if (systemAbility == nullptr) {
96 SCLOCK_HILOGE("Get SystemAbility failed.");
97 return nullptr;
98 }
99 deathRecipient_ = new ScreenLockAppDeathRecipient();
100 systemAbility->AddDeathRecipient(deathRecipient_);
101 sptr<ScreenLockManagerInterface> screenlockServiceProxy = iface_cast<ScreenLockManagerInterface>(systemAbility);
102 if (screenlockServiceProxy == nullptr) {
103 SCLOCK_HILOGE("Get ScreenLockManagerProxy from SA failed.");
104 return nullptr;
105 }
106 SCLOCK_HILOGD("Getting ScreenLockManagerProxy succeeded.");
107 return screenlockServiceProxy;
108 }
109
OnRemoteSaDied(const wptr<IRemoteObject> & remote)110 void ScreenLockAppManager::OnRemoteSaDied(const wptr<IRemoteObject> &remote)
111 {
112 {
113 std::lock_guard<std::mutex> autoLock(managerProxyLock_);
114 screenlockManagerProxy_ = GetScreenLockManagerProxy();
115 }
116 if (systemEventListener_ != nullptr) {
117 SystemEvent systemEvent(SERVICE_RESTART);
118 systemEventListener_->OnCallBack(systemEvent);
119 }
120 }
121
GetProxy()122 sptr<ScreenLockManagerInterface> ScreenLockAppManager::GetProxy()
123 {
124 if (screenlockManagerProxy_ != nullptr) {
125 return screenlockManagerProxy_;
126 }
127 std::lock_guard<std::mutex> autoLock(managerProxyLock_);
128 if (screenlockManagerProxy_ == nullptr) {
129 SCLOCK_HILOGW("Redo GetScreenLockManagerProxy");
130 screenlockManagerProxy_ = GetScreenLockManagerProxy();
131 }
132 return screenlockManagerProxy_;
133 }
134
ScreenLockAppDeathRecipient()135 ScreenLockAppDeathRecipient::ScreenLockAppDeathRecipient()
136 {
137 }
138
~ScreenLockAppDeathRecipient()139 ScreenLockAppDeathRecipient::~ScreenLockAppDeathRecipient()
140 {
141 }
142
OnRemoteDied(const wptr<IRemoteObject> & object)143 void ScreenLockAppDeathRecipient::OnRemoteDied(const wptr<IRemoteObject> &object)
144 {
145 SCLOCK_HILOGE("ScreenLockAppDeathRecipient on remote systemAbility died.");
146 ScreenLockAppManager::GetInstance()->OnRemoteSaDied(object);
147 }
148 } // namespace ScreenLock
149 } // namespace OHOS
150