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 16import commonEvent from "@ohos.commonEvent" 17 18import { Log } from '../../utils/Log' 19import { EventBus } from '../../worker/eventbus/EventBus' 20import { EventBusManager } from '../../worker/eventbus/EventBusManager' 21 22const SCREEN_COMMON_EVENT_INFO = { 23 events: [commonEvent.Support.COMMON_EVENT_SCREEN_OFF], 24}; 25 26 27export class ScreenLockManager { 28 private TAG: string = '[ScreenLockManager]:' 29 public static readonly SCREEN_CHANGE_EVENT = 'SCREEN_CHANGE_EVENT' 30 mSubscriber: any; 31 appEventBus: EventBus = EventBusManager.getInstance().getEventBus() 32 33 async init() { 34 Log.log(`${this.TAG} init`) 35 this.mSubscriber = await commonEvent.createSubscriber(SCREEN_COMMON_EVENT_INFO); 36 commonEvent.subscribe(this.mSubscriber, (err, data) => { 37 if (err.code != 0) { 38 Log.error(`${this.TAG} Can't handle screen change, err: ${JSON.stringify(err)}`); 39 return; 40 } 41 Log.info(`${this.TAG} screenChange, err: ${JSON.stringify(err)} data: ${JSON.stringify(data)}`); 42 switch (data.event) { 43 case commonEvent.Support.COMMON_EVENT_SCREEN_OFF: 44 Log.log(`${this.TAG} COMMON_EVENT_SCREEN_OFF`) 45 this.notifyScreenEvent(false); 46 break; 47 default: 48 Log.log(`${this.TAG} unknow event`); 49 } 50 }); 51 } 52 53 close() { 54 commonEvent.unsubscribe(this.mSubscriber) 55 } 56 57 notifyScreenEvent(isScreenOn: boolean) { 58 this.appEventBus.emit(ScreenLockManager.SCREEN_CHANGE_EVENT, [isScreenOn]); 59 Log.log(`${this.TAG} publish ${ScreenLockManager.SCREEN_CHANGE_EVENT} screenState: ${isScreenOn}`); 60 } 61} 62 63export default ScreenLockManager;