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/**
* @license
* Copyright 2023 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type {Browser} from './Browser.js';
import type {BrowserContext} from './BrowserContext.js';
import type {CDPSession} from './CDPSession.js';
import type {Page} from './Page.js';
import type {WebWorker} from './WebWorker.js';
/**
* @public
*/
export enum TargetType {
PAGE = 'page',
BACKGROUND_PAGE = 'background_page',
SERVICE_WORKER = 'service_worker',
SHARED_WORKER = 'shared_worker',
BROWSER = 'browser',
WEBVIEW = 'webview',
OTHER = 'other',
/**
* @internal
*/
TAB = 'tab',
}
/**
* Target represents a
* In CDP a target is something that can be debugged such a frame, a page or a
* worker.
* @public
*/
export abstract class Target {
/**
* @internal
*/
protected constructor() {}
/**
* If the target is not of type `"service_worker"` or `"shared_worker"`, returns `null`.
*/
async worker(): Promise<WebWorker | null> {
return null;
}
/**
* If the target is not of type `"page"`, `"webview"` or `"background_page"`,
* returns `null`.
*/
async page(): Promise<Page | null> {
return null;
}
/**
* Forcefully creates a page for a target of any type. It is useful if you
* want to handle a CDP target of type `other` as a page. If you deal with a
* regular page target, use {@link Target.page}.
*/
abstract asPage(): Promise<Page>;
abstract url(): string;
/**
* Creates a Chrome Devtools Protocol session attached to the target.
*/
abstract createCDPSession(): Promise<CDPSession>;
/**
* Identifies what kind of target this is.
*
* @remarks
*
* See {@link https://developer.chrome.com/extensions/background_pages | docs} for more info about background pages.
*/
abstract type(): TargetType;
/**
* Get the browser the target belongs to.
*/
abstract browser(): Browser;
/**
* Get the browser context the target belongs to.
*/
abstract browserContext(): BrowserContext;
/**
* Get the target that opened this target. Top-level targets return `null`.
*/
abstract opener(): Target | undefined;
}