/* * Copyright (c) 2021-2023 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file * @kit BasicServicesKit */ import { AsyncCallback, BusinessError } from './@ohos.base'; /** * Provides a mechanism to prevent the system from hibernating so that the applications can run in the background or * when the screen is off. *
{@link create} can be called to obtain a {@link RunningLock}. *
{@link hold} can be called to set the lock duration, during which the system will not hibernate. After the * lock duration times out, the lock is automatically released and the system hibernates if no other * {@link RunningLock} is set. * * @namespace runningLock * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 7 */ declare namespace runningLock { class RunningLock { /** * Prevents the system from hibernating and sets the lock duration. * This method requires the ohos.permission.RUNNING_LOCK permission. * * @permission ohos.permission.RUNNING_LOCK * @param { number } timeout Indicates the lock duration (ms). After the lock duration times out, the lock is automatically * released and the system hibernates if no other {@link RunningLock} is set. * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 7 * @deprecated since 9 * @useinstead RunningLock#hold */ lock(timeout: number): void; /** * Prevents the system from hibernating and sets the lock duration. * This method requires the ohos.permission.RUNNING_LOCK permission. * * @permission ohos.permission.RUNNING_LOCK * @param { number } timeout Indicates the lock duration (ms). After the lock duration times out, * the lock is automatically released and the system hibernates if no other {@link RunningLock} is set. * timeout parameter must be of type number. * @throws { BusinessError } 401 - Parameter error. Possible causes: 1. Incorrect parameter types; * @throws { BusinessError } 4900101 - If connecting to the service failed. * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 9 */ hold(timeout: number): void; /** * Checks whether a lock is held or in use. * * @returns { boolean } Returns true if the lock is held or in use; returns false if the lock has been released. * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 7 * @deprecated since 9 * @useinstead RunningLock#isHolding */ isUsed(): boolean; /** * Checks whether a lock is held or in use. * * @returns { boolean } Returns true if the lock is held or in use; returns false if the lock has been released. * @throws { BusinessError } 4900101 - If connecting to the service failed. * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 9 */ isHolding(): boolean; /** * Release the {@link RunningLock} that prevents the system from hibernating. * This method requires the ohos.permission.RUNNING_LOCK permission. * * @permission ohos.permission.RUNNING_LOCK * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 7 * @deprecated since 9 * @useinstead RunningLock#unhold */ unlock(): void; /** * Release the {@link RunningLock} that prevents the system from hibernating. * This method requires the ohos.permission.RUNNING_LOCK permission. * * @permission ohos.permission.RUNNING_LOCK * @throws { BusinessError } 4900101 - If connecting to the service failed. * @syscap SystemCapability.PowerManager.PowerManager.Core * @since 9 */ unhold(): void; } /** * Enumerates the {@link RunningLock} types. *
Two {@link RunningLock} types are available: {@link BACKGROUND}, and {@link PROXIMITY_SCREEN_CONTROL}.
* {@link BACKGROUND} ensures that applications can run in the background.
* {@link PROXIMITY_SCREEN_CONTROL} determines whether to turn on or off the screen based on the proximity sensor.
*
* @enum { number }
* @syscap SystemCapability.PowerManager.PowerManager.Core
* @since 7
*/
export enum RunningLockType {
/**
* Indicates the lock that prevents the system from hibernating.
*
* @syscap SystemCapability.PowerManager.PowerManager.Core
* @since 7
* @deprecated since 10
*/
BACKGROUND = 1,
/**
* Indicates the lock that determines whether to turn on or off the screen based on the proximity sensor.
* For example, during a call, if the proximity sensor detects that the device is moving close to
* the user's ear, the screen turns off; if the proximity sensor detects that the device is moving away
* from the user's ear, the screen turns on.
*
* @syscap SystemCapability.PowerManager.PowerManager.Core
* @since 7
*/
PROXIMITY_SCREEN_CONTROL
}
/**
* Checks whether the specified {@link RunningLockType} is supported.
*
* @param { RunningLockType } type Indicates the specified {@link RunningLockType}.
* @param { AsyncCallback This method requires the ohos.permission.RUNNING_LOCK permission.
* The {@link RunningLock} object can be used to perform a lock operation to prevent the system from hibernating.
*
* @permission ohos.permission.RUNNING_LOCK
* @param { string } name Indicates the {@link RunningLock} name. A recommended name consists of the package or class name and
* a suffix.
* @param { RunningLockType } type Indicates the {@link RunningLockType}.
* @param { AsyncCallback This method requires the ohos.permission.RUNNING_LOCK permission.
* The {@link RunningLock} object can be used to perform a lock operation to prevent the system from hibernating.
*
* @permission ohos.permission.RUNNING_LOCK
* @param { string } name Indicates the {@link RunningLock} name. A recommended name consists of the package or class name and
* a suffix.
* @param { RunningLockType } type Indicates the {@link RunningLockType}.
* @returns { Promise This method requires the ohos.permission.RUNNING_LOCK permission.
* The {@link RunningLock} object can be used to perform a lock operation to prevent the system from hibernating.
*
* @permission ohos.permission.RUNNING_LOCK
* @param { string } name Indicates the {@link RunningLock} name. A recommended name consists of the package or
* class name and a suffix.
* name parameter must be of type string.
* @param { RunningLockType } type Indicates the {@link RunningLockType}.
* the RunningLockType type is an enumeration class.
* @param { AsyncCallback This method requires the ohos.permission.RUNNING_LOCK permission.
* The {@link RunningLock} object can be used to perform a lock operation to prevent the system from hibernating.
*
* @permission ohos.permission.RUNNING_LOCK
* @param { string } name Indicates the {@link RunningLock} name. A recommended name consists of the package or
* class name and a suffix.
* name parameter must be of type string.
* @param { RunningLockType } type Indicates the {@link RunningLockType}.
* the RunningLockType type is an enumeration class.
* @returns { Promise