interface_sdk-js/api/@ohos.app.ability.UIAbility.d.ts

/*
 * Copyright (c) 2022-2023 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.
 */

import Ability from './@ohos.app.ability.Ability';
import AbilityConstant from './@ohos.app.ability.AbilityConstant';
import UIAbilityContext from './application/UIAbilityContext';
import rpc from './@ohos.rpc';
import Want from './@ohos.app.ability.Want';
import window from './@ohos.window';

/**
 * The prototype of the listener function interface registered by the Caller.
 *
 * @typedef OnReleaseCallback
 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
 * @StageModelOnly
 * @since 9
 */
export interface OnReleaseCallback {
  (msg: string): void;
}

/**
 * The prototype of the listener function interface registered by the Caller.
 *
 * @typedef OnRemoteStateChangeCallback
 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
 * @StageModelOnly
 * @since 10
 */
export interface OnRemoteStateChangeCallback {
  (msg: string): void;
}

/**
 * The prototype of the message listener function interface registered by the Callee.
 *
 * @typedef CalleeCallback
 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
 * @StageModelOnly
 * @since 9
 */
export interface CalleeCallback {
  (indata: rpc.MessageSequence): rpc.Parcelable;
}

/**
 * The interface of a Caller.
 *
 * @interface Caller
 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
 * @StageModelOnly
 * @since 9
 */
export interface Caller {
  /**
   * Notify the server of Parcelable type data.
   *
   * @param { string } method - The notification event string listened to by the callee.
   * @param { rpc.Parcelable } data - Notification data to the callee.
   * @returns { Promise<void> } The promise returned by the function.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200001 - Caller released. The caller has been released.
   * @throws { BusinessError } 16200002 - Callee invalid. The callee does not exist.
   * @throws { BusinessError } 16000050 - Internal error.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  call(method: string, data: rpc.Parcelable): Promise<void>;

  /**
   * Notify the server of Parcelable type data and return the notification result.
   *
   * @param { string } method - The notification event string listened to by the callee.
   * @param { rpc.Parcelable } data - Notification data to the callee.
   * @returns { Promise<rpc.MessageSequence> } Returns the callee's notification result data.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200001 - Caller released. The caller has been released.
   * @throws { BusinessError } 16200002 - Callee invalid. The callee does not exist.
   * @throws { BusinessError } 16000050 - Internal error.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  callWithResult(method: string, data: rpc.Parcelable): Promise<rpc.MessageSequence>;

  /**
   * Clear service records.
   *
   * @throws { BusinessError } 16200001 - Caller released. The caller has been released.
   * @throws { BusinessError } 16200002 - Callee invalid. The callee does not exist.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  release(): void;

  /**
   * Register death listener notification callback.
   *
   * @param { OnReleaseCallback } callback - Register a callback function for listening for notifications.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200001 - Caller released. The caller has been released.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  onRelease(callback: OnReleaseCallback): void;

  /**
   * Register state changed listener notification callback of remote ability.
   *
   * @param { OnRemoteStateChangeCallback } callback - Register a callback function for listening for notifications.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200001 - Caller released. The caller has been released.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 10
   */
  onRemoteStateChange(callback: OnRemoteStateChangeCallback): void;

  /**
   * Register death listener notification callback.
   *
   * @param { 'release' } type - release.
   * @param { OnReleaseCallback } callback - Register a callback function for listening for notifications.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200001 - Caller released. The caller has been released.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  on(type: 'release', callback: OnReleaseCallback): void;

  /**
   * Unregister death listener notification callback.
   *
   * @param { 'release' } type - release.
   * @param { OnReleaseCallback } callback - Unregister a callback function for listening for notifications.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  off(type: 'release', callback: OnReleaseCallback): void;

  /**
   * Unregister all death listener notification callback.
   *
   * @param { 'release' } type - release.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  off(type: 'release'): void;
}

/**
 * The interface of a Callee.
 *
 * @interface Callee
 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
 * @StageModelOnly
 * @since 9
 */
export interface Callee {
  /**
   * Register data listener callback.
   *
   * @param { string } method - A string registered to listen for notification events.
   * @param { CalleeCallback } callback - Register a callback function that listens for notification events.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200004 Method registered. The method has registered.
   * @throws { BusinessError } 16000050 Internal error.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  on(method: string, callback: CalleeCallback): void;

  /**
   * Unregister data listener callback.
   *
   * @param { string } method - A string registered to listen for notification events.
   * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
   * @throws { BusinessError } 16200005 Method not registered. The method has not registered.
   * @throws { BusinessError } 16000050 Internal error.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  off(method: string): void;
}

/**
 * The class of a UI ability.
 *
 * @extends Ability
 * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
 * @StageModelOnly
 * @crossplatform
 * @since 9
 */
export default class UIAbility extends Ability {
  /**
   * Indicates configuration information about an ability context.
   *
   * @type { UIAbilityContext }
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  context: UIAbilityContext;

  /**
   * Indicates ability launch want.
   *
   * @type { Want }
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  launchWant: Want;

  /**
   * Indicates ability last request want.
   *
   * @type { Want }
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  lastRequestWant: Want;

  /**
   * Call Service Stub Object.
   *
   * @type { Callee }
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  callee: Callee;

  /**
   * Called back when an ability is started for initialization.
   *
   * @param { Want } want - Indicates the want info of the created ability.
   * @param { AbilityConstant.LaunchParam } param - Indicates the launch param.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onCreate(want: Want, param: AbilityConstant.LaunchParam): void;

  /**
   * Called back when an ability window stage is created.
   *
   * @param { window.WindowStage } windowStage - Indicates the created WindowStage.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onWindowStageCreate(windowStage: window.WindowStage): void;

  /**
   * Called back when an ability window stage is destroyed.
   *
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onWindowStageDestroy(): void;

  /**
   * Called back when an ability window stage is restored.
   *
   * @param { window.WindowStage } windowStage - window stage to restore
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  onWindowStageRestore(windowStage: window.WindowStage): void;

  /**
   * Called back before an ability is destroyed.
   *
   * @returns { void | Promise<void> } the promise returned by the function.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onDestroy(): void | Promise<void>;

  /**
   * Called back when the state of an ability changes to foreground.
   *
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onForeground(): void;

  /**
   * Called back when the state of an ability changes to background.
   *
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onBackground(): void;

  /**
   * Called back when an ability prepares to continue.
   *
   * @param { Object } wantParam - Indicates the want parameter.
   * @returns { AbilityConstant.OnContinueResult } Return the result of onContinue.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  onContinue(wantParam: { [key: string]: Object }): AbilityConstant.OnContinueResult;

  /**
   * Called when the launch mode of an ability is set to singleton.
   * This happens when you re-launch an ability that has been at the top of the ability stack.
   *
   * @param { Want } want - Indicates the want info of ability.
   * @param { AbilityConstant.LaunchParam } launchParams - Indicates the launch parameters.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @crossplatform
   * @since 9
   */
  onNewWant(want: Want, launchParams: AbilityConstant.LaunchParam): void;

  /**
   * Called when dump client information is required.
   * It is recommended that developers don't DUMP sensitive information.
   *
   * @param { Array<string> } params - Indicates the params from command.
   * @returns { Array<string> } Return the dump info array.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  onDump(params: Array<string>): Array<string>;

  /**
   * Called back when an ability prepares to save.
   *
   * @param { AbilityConstant.StateType } reason state type when save.
   * @param { Object } wantParam Indicates the want parameter.
   * @returns { AbilityConstant.OnSaveResult } agree with the current UIAbility status or not.return 0 if ability
   *                                           agrees to save data successfully, otherwise errcode.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 9
   */
  onSaveState(reason: AbilityConstant.StateType, wantParam: { [key: string]: Object }): AbilityConstant.OnSaveResult;

  /**
   * Called back when an ability shares data.
   *
   * @param { Object } wantParam - Indicates the want parameter.
   * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
   * @StageModelOnly
   * @since 10
   */
  onShare(wantParam: { [key: string]: Object }): void;
}