/**
* @license
* Copyright 2022 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type { Protocol } from 'devtools-protocol';
import type { CDPSession } from '../api/CDPSession.js';
import type { EventEmitter, EventType } from '../common/EventEmitter.js';
import type { CdpTarget } from './Target.js';
/**
* @internal
*/
export type TargetFactory = (targetInfo: Protocol.Target.TargetInfo, session?: CDPSession, parentSession?: CDPSession) => CdpTarget;
/**
* @internal
*/
export declare const enum TargetManagerEvent {
TargetDiscovered = "targetDiscovered",
TargetAvailable = "targetAvailable",
TargetGone = "targetGone",
/**
* Emitted after a target has been initialized and whenever its URL changes.
*/
TargetChanged = "targetChanged"
}
/**
* @internal
*/
export interface TargetManagerEvents extends Record<EventType, unknown> {
[TargetManagerEvent.TargetAvailable]: CdpTarget;
[TargetManagerEvent.TargetDiscovered]: Protocol.Target.TargetInfo;
[TargetManagerEvent.TargetGone]: CdpTarget;
[TargetManagerEvent.TargetChanged]: {
target: CdpTarget;
wasInitialized: true;
previousURL: string;
};
}
/**
* TargetManager encapsulates all interactions with CDP targets and is
* responsible for coordinating the configuration of targets with the rest of
* Puppeteer. Code outside of this class should not subscribe `Target.*` events
* and only use the TargetManager events.
*
* There are two implementations: one for Chrome that uses CDP's auto-attach
* mechanism and one for Firefox because Firefox does not support auto-attach.
*
* @internal
*/
export interface TargetManager extends EventEmitter<TargetManagerEvents> {
getAvailableTargets(): ReadonlyMap<string, CdpTarget>;
getChildTargets(target: CdpTarget): ReadonlySet<CdpTarget>;
initialize(): Promise<void>;
dispose(): void;
}
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