1 /*
2 * Copyright (c) 2021-2023 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 "system_event_observer.h"
17
18 #include "advanced_notification_service.h"
19 #include "ans_const_define.h"
20 #include "bundle_constants.h"
21 #include "common_event_manager.h"
22 #include "common_event_support.h"
23 #include "notification_preferences.h"
24
25 namespace OHOS {
26 namespace Notification {
SystemEventObserver(const ISystemEvent & callbacks)27 SystemEventObserver::SystemEventObserver(const ISystemEvent &callbacks) : callbacks_(callbacks)
28 {
29 EventFwk::MatchingSkills matchingSkills;
30 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_REMOVED);
31 #ifdef DISTRIBUTED_NOTIFICATION_SUPPORTED
32 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_ON);
33 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_OFF);
34 #endif
35 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_USER_SWITCHED);
36 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_USER_REMOVED);
37 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_DATA_CLEARED);
38 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_ADDED);
39 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_CHANGED);
40 matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_BOOT_COMPLETED);
41 EventFwk::CommonEventSubscribeInfo commonEventSubscribeInfo(matchingSkills);
42 commonEventSubscribeInfo.SetThreadMode(EventFwk::CommonEventSubscribeInfo::COMMON);
43
44 subscriber_ = std::make_shared<SystemEventSubscriber>(
45 commonEventSubscribeInfo, std::bind(&SystemEventObserver::OnReceiveEvent, this, std::placeholders::_1));
46
47 EventFwk::CommonEventManager::SubscribeCommonEvent(subscriber_);
48 InitEventList();
49 }
50
~SystemEventObserver()51 SystemEventObserver::~SystemEventObserver()
52 {
53 EventFwk::CommonEventManager::UnSubscribeCommonEvent(subscriber_);
54 }
55
GetBundleOption(AAFwk::Want want)56 sptr<NotificationBundleOption> SystemEventObserver::GetBundleOption(AAFwk::Want want)
57 {
58 auto element = want.GetElement();
59 std::string bundleName = element.GetBundleName();
60 int32_t uid = want.GetIntParam(AppExecFwk::Constants::UID, -1);
61 sptr<NotificationBundleOption> bundleOption = new (std::nothrow) NotificationBundleOption(bundleName, uid);
62 if (bundleOption == nullptr) {
63 ANS_LOGE("Failed to create bundleOption.");
64 return nullptr;
65 }
66 return bundleOption;
67 }
68
OnReceiveEvent(const EventFwk::CommonEventData & data)69 void SystemEventObserver::OnReceiveEvent(const EventFwk::CommonEventData &data)
70 {
71 auto want = data.GetWant();
72 std::string action = want.GetAction();
73 ANS_LOGD("OnReceiveEvent action is %{public}s.", action.c_str());
74 if (action == EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_REMOVED) {
75 if (callbacks_.onBundleRemoved != nullptr) {
76 sptr<NotificationBundleOption> bundleOption = GetBundleOption(want);
77 if (bundleOption != nullptr) {
78 callbacks_.onBundleRemoved(bundleOption);
79 }
80 }
81 #ifdef DISTRIBUTED_NOTIFICATION_SUPPORTED
82 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_ON) {
83 if (callbacks_.onScreenOn != nullptr) {
84 callbacks_.onScreenOn();
85 }
86 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_OFF) {
87 if (callbacks_.onScreenOff != nullptr) {
88 callbacks_.onScreenOff();
89 }
90 #endif
91 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_USER_SWITCHED) {
92 NotificationPreferences::GetInstance().InitSettingFromDisturbDB();
93 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_USER_REMOVED) {
94 int32_t userId = data.GetCode();
95 if (userId <= DEFAULT_USER_ID) {
96 ANS_LOGE("Illegal userId, userId[%{public}d].", userId);
97 return;
98 }
99 if (callbacks_.onResourceRemove != nullptr) {
100 callbacks_.onResourceRemove(userId);
101 }
102 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_DATA_CLEARED) {
103 if (callbacks_.onBundleDataCleared != nullptr) {
104 sptr<NotificationBundleOption> bundleOption = GetBundleOption(want);
105 if (bundleOption != nullptr) {
106 callbacks_.onBundleDataCleared(bundleOption);
107 }
108 }
109 } else {
110 OnReceiveEventInner(data);
111 }
112 }
113
InitEventList()114 void SystemEventObserver::InitEventList()
115 {
116 memberFuncMap_[EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_ADDED] =
117 &SystemEventObserver::OnBundleAddEventInner;
118 memberFuncMap_[EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_CHANGED] =
119 &SystemEventObserver::OnBundleUpdateEventInner;
120 memberFuncMap_[EventFwk::CommonEventSupport::COMMON_EVENT_BOOT_COMPLETED] =
121 &SystemEventObserver::OnBootSystemCompletedEventInner;
122 }
123
OnReceiveEventInner(const EventFwk::CommonEventData & data)124 void SystemEventObserver::OnReceiveEventInner(const EventFwk::CommonEventData &data)
125 {
126 std::string action = data.GetWant().GetAction();
127 auto itFunc = memberFuncMap_.find(action);
128 if (itFunc == memberFuncMap_.end()) {
129 ANS_LOGE("Action %{public}s callback is not found.", action.c_str());
130 return;
131 }
132
133 if (itFunc->second == nullptr) {
134 ANS_LOGE("Action [%{public}s] callback is nullptr.", action.c_str());
135 return;
136 }
137
138 (this->*(itFunc->second))(data);
139 }
140
OnBundleAddEventInner(const EventFwk::CommonEventData & data)141 void SystemEventObserver::OnBundleAddEventInner(const EventFwk::CommonEventData &data)
142 {
143 if (callbacks_.onBundleAdd != nullptr) {
144 sptr<NotificationBundleOption> bundleOption = GetBundleOption(data.GetWant());
145 if (bundleOption != nullptr) {
146 callbacks_.onBundleAdd(bundleOption);
147 }
148 }
149 }
150
OnBundleUpdateEventInner(const EventFwk::CommonEventData & data)151 void SystemEventObserver::OnBundleUpdateEventInner(const EventFwk::CommonEventData &data)
152 {
153 if (callbacks_.onBundleUpdate != nullptr) {
154 sptr<NotificationBundleOption> bundleOption = GetBundleOption(data.GetWant());
155 if (bundleOption != nullptr) {
156 callbacks_.onBundleUpdate(bundleOption);
157 }
158 }
159 }
160
OnBootSystemCompletedEventInner(const EventFwk::CommonEventData & data)161 void SystemEventObserver::OnBootSystemCompletedEventInner(const EventFwk::CommonEventData &data)
162 {
163 if (callbacks_.onBootSystemCompleted != nullptr) {
164 callbacks_.onBootSystemCompleted();
165 }
166 }
167 } // namespace Notification
168 } // namespace OHOS
169