1 /*
2 * Copyright (c) 2021-2022 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 "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 EventFwk::CommonEventSubscribeInfo commonEventSubscribeInfo(matchingSkills);
39 commonEventSubscribeInfo.SetThreadMode(EventFwk::CommonEventSubscribeInfo::COMMON);
40
41 subscriber_ = std::make_shared<SystemEventSubscriber>(
42 commonEventSubscribeInfo, std::bind(&SystemEventObserver::OnReceiveEvent, this, std::placeholders::_1));
43
44 EventFwk::CommonEventManager::SubscribeCommonEvent(subscriber_);
45 }
46
~SystemEventObserver()47 SystemEventObserver::~SystemEventObserver()
48 {
49 EventFwk::CommonEventManager::UnSubscribeCommonEvent(subscriber_);
50 }
51
GetBundleOption(AAFwk::Want want)52 sptr<NotificationBundleOption> SystemEventObserver::GetBundleOption(AAFwk::Want want)
53 {
54 auto element = want.GetElement();
55 std::string bundleName = element.GetBundleName();
56 int32_t uid = want.GetIntParam(AppExecFwk::Constants::UID, -1);
57 sptr<NotificationBundleOption> bundleOption = new NotificationBundleOption(bundleName, uid);
58 if (bundleOption == nullptr) {
59 ANS_LOGE("Failed to create bundleOption.");
60 }
61 return bundleOption;
62 }
63
OnReceiveEvent(const EventFwk::CommonEventData & data)64 void SystemEventObserver::OnReceiveEvent(const EventFwk::CommonEventData &data)
65 {
66 auto want = data.GetWant();
67 std::string action = want.GetAction();
68 ANS_LOGD("OnReceiveEvent action is %{public}s.", action.c_str());
69 if (action == EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_REMOVED) {
70 if (callbacks_.onBundleRemoved != nullptr) {
71 sptr<NotificationBundleOption> bundleOption = GetBundleOption(want);
72 if (bundleOption != nullptr) {
73 callbacks_.onBundleRemoved(bundleOption);
74 }
75 }
76 #ifdef DISTRIBUTED_NOTIFICATION_SUPPORTED
77 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_ON) {
78 if (callbacks_.onScreenOn != nullptr) {
79 callbacks_.onScreenOn();
80 }
81 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_SCREEN_OFF) {
82 if (callbacks_.onScreenOff != nullptr) {
83 callbacks_.onScreenOff();
84 }
85 #endif
86 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_USER_SWITCHED) {
87 NotificationPreferences::GetInstance().InitSettingFromDisturbDB();
88 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_USER_REMOVED) {
89 int32_t userId = data.GetCode();
90 if (userId <= DEFAULT_USER_ID) {
91 ANS_LOGE("Illegal userId, userId[%{public}d].", userId);
92 return;
93 }
94 if (callbacks_.onResourceRemove != nullptr) {
95 callbacks_.onResourceRemove(userId);
96 }
97 } else if (action == EventFwk::CommonEventSupport::COMMON_EVENT_PACKAGE_DATA_CLEARED) {
98 if (callbacks_.onBundleDataCleared != nullptr) {
99 sptr<NotificationBundleOption> bundleOption = GetBundleOption(want);
100 if (bundleOption != nullptr) {
101 callbacks_.onBundleDataCleared(bundleOption);
102 }
103 }
104 }
105 }
106 } // namespace Notification
107 } // namespace OHOS