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 #include "conditions/battery_level_listener.h"
16
17 #include <string>
18
19 #include "battery_info.h"
20 #include "common_event_manager.h"
21 #include "common_event_support.h"
22 #include "matching_skills.h"
23 #include "want.h"
24 #include "work_sched_hilog.h"
25
26 namespace OHOS {
27 namespace WorkScheduler {
BatteryLevelEventSubscriber(const EventFwk::CommonEventSubscribeInfo & subscribeInfo,BatteryLevelListener & listener)28 BatteryLevelEventSubscriber::BatteryLevelEventSubscriber(const EventFwk::CommonEventSubscribeInfo &subscribeInfo,
29 BatteryLevelListener &listener) : EventFwk::CommonEventSubscriber(subscribeInfo), listener_(listener) {}
30
OnReceiveEvent(const EventFwk::CommonEventData & data)31 void BatteryLevelEventSubscriber::OnReceiveEvent(const EventFwk::CommonEventData &data)
32 {
33 const std::string action = data.GetWant().GetAction();
34
35 WS_HILOGD("OnReceiveEvent get action: %{public}s", action.c_str());
36 if (action == EventFwk::CommonEventSupport::COMMON_EVENT_BATTERY_CHANGED) {
37 std::string KEY_CAPACITY = PowerMgr::BatteryInfo::COMMON_EVENT_KEY_CAPACITY;
38 int32_t defaultCapacity = -1;
39 auto capacity = data.GetWant().GetIntParam(KEY_CAPACITY, defaultCapacity);
40 WS_HILOGD("capacity: %{public}d", capacity);
41 if (capacity == defaultCapacity) {
42 return;
43 }
44 listener_.OnConditionChanged(WorkCondition::Type::BATTERY_LEVEL,
45 std::make_shared<DetectorValue>(capacity, 0, 0, std::string()));
46 } else {
47 WS_HILOGI("action is invalid");
48 }
49 }
50
CreateBatteryEventSubscriber(BatteryLevelListener & listener)51 std::shared_ptr<EventFwk::CommonEventSubscriber> CreateBatteryEventSubscriber(BatteryLevelListener &listener)
52 {
53 EventFwk::MatchingSkills skill = EventFwk::MatchingSkills();
54 skill.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_BATTERY_CHANGED);
55 EventFwk::CommonEventSubscribeInfo info(skill);
56 return std::make_shared<BatteryLevelEventSubscriber>(info, listener);
57 }
58
BatteryLevelListener(std::shared_ptr<WorkQueueManager> workQueueManager)59 BatteryLevelListener::BatteryLevelListener(std::shared_ptr<WorkQueueManager> workQueueManager)
60 {
61 workQueueManager_ = workQueueManager;
62 }
63
~BatteryLevelListener()64 BatteryLevelListener::~BatteryLevelListener()
65 {
66 this->Stop();
67 }
68
Start()69 bool BatteryLevelListener::Start()
70 {
71 WS_HILOGD("Battery level listener start.");
72 this->commonEventSubscriber = CreateBatteryEventSubscriber(*this);
73 return EventFwk::CommonEventManager::SubscribeCommonEvent(this->commonEventSubscriber);
74 }
75
Stop()76 bool BatteryLevelListener::Stop()
77 {
78 WS_HILOGD("Battery level listener stop.");
79 if (this->commonEventSubscriber != nullptr) {
80 bool result = EventFwk::CommonEventManager::UnSubscribeCommonEvent(this->commonEventSubscriber);
81 if (result) {
82 this->commonEventSubscriber = nullptr;
83 }
84 return result;
85 }
86 return true;
87 }
88
OnConditionChanged(WorkCondition::Type conditionType,std::shared_ptr<DetectorValue> conditionVal)89 void BatteryLevelListener::OnConditionChanged(WorkCondition::Type conditionType,
90 std::shared_ptr<DetectorValue> conditionVal)
91 {
92 if (workQueueManager_ != nullptr) {
93 workQueueManager_->OnConditionChanged(conditionType, conditionVal);
94 } else {
95 WS_HILOGE("workQueueManager_ is nullptr.");
96 }
97 }
98 } // namespace WorkScheduler
99 } // namespace OHOS