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/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import {EventEmitter, type EventType} from '../common/EventEmitter.js';
import {debugError} from '../common/util.js';
import {asyncDisposeSymbol, disposeSymbol} from '../util/disposable.js';
import type {Browser, Permission, WaitForTargetOptions} from './Browser.js';
import type {Page} from './Page.js';
import type {Target} from './Target.js';
/**
* @public
*/
export const enum BrowserContextEvent {
/**
* Emitted when the url of a target inside the browser context changes.
* Contains a {@link Target} instance.
*/
TargetChanged = 'targetchanged',
/**
* Emitted when a target is created within the browser context, for example
* when a new page is opened by
* {@link https://developer.mozilla.org/en-US/docs/Web/API/Window/open | window.open}
* or by {@link BrowserContext.newPage | browserContext.newPage}
*
* Contains a {@link Target} instance.
*/
TargetCreated = 'targetcreated',
/**
* Emitted when a target is destroyed within the browser context, for example
* when a page is closed. Contains a {@link Target} instance.
*/
TargetDestroyed = 'targetdestroyed',
}
export {
/**
* @deprecated Use {@link BrowserContextEvent}
*/
BrowserContextEvent as BrowserContextEmittedEvents,
};
/**
* @public
*/
export interface BrowserContextEvents extends Record<EventType, unknown> {
[BrowserContextEvent.TargetChanged]: Target;
[BrowserContextEvent.TargetCreated]: Target;
[BrowserContextEvent.TargetDestroyed]: Target;
}
/**
* {@link BrowserContext} represents individual sessions within a
* {@link Browser | browser}.
*
* When a {@link Browser | browser} is launched, it has a single
* {@link BrowserContext | browser context} by default. Others can be created
* using {@link Browser.createIncognitoBrowserContext}.
*
* {@link BrowserContext} {@link EventEmitter | emits} various events which are
* documented in the {@link BrowserContextEvent} enum.
*
* If a {@link Page | page} opens another {@link Page | page}, e.g. using
* `window.open`, the popup will belong to the parent {@link Page.browserContext
* | page's browser context}.
*
* @example Creating an incognito {@link BrowserContext | browser context}:
*
* ```ts
* // Create a new incognito browser context
* const context = await browser.createIncognitoBrowserContext();
* // Create a new page inside context.
* const page = await context.newPage();
* // ... do stuff with page ...
* await page.goto('https://example.com');
* // Dispose context once it's no longer needed.
* await context.close();
* ```
*
* @public
*/
export abstract class BrowserContext extends EventEmitter<BrowserContextEvents> {
/**
* @internal
*/
constructor() {
super();
}
/**
* Gets all active {@link Target | targets} inside this
* {@link BrowserContext | browser context}.
*/
abstract targets(): Target[];
/**
* Waits until a {@link Target | target} matching the given `predicate`
* appears and returns it.
*
* This will look all open {@link BrowserContext | browser contexts}.
*
* @example Finding a target for a page opened via `window.open`:
*
* ```ts
* await page.evaluate(() => window.open('https://www.example.com/'));
* const newWindowTarget = await browserContext.waitForTarget(
* target => target.url() === 'https://www.example.com/'
* );
* ```
*/
abstract waitForTarget(
predicate: (x: Target) => boolean | Promise<boolean>,
options?: WaitForTargetOptions
): Promise<Target>;
/**
* Gets a list of all open {@link Page | pages} inside this
* {@link BrowserContext | browser context}.
*
* @remarks Non-visible {@link Page | pages}, such as `"background_page"`,
* will not be listed here. You can find them using {@link Target.page}.
*/
abstract pages(): Promise<Page[]>;
/**
* Whether this {@link BrowserContext | browser context} is incognito.
*
* The {@link Browser.defaultBrowserContext | default browser context} is the
* only non-incognito browser context.
*/
abstract isIncognito(): boolean;
/**
* Grants this {@link BrowserContext | browser context} the given
* `permissions` within the given `origin`.
*
* @example Overriding permissions in the
* {@link Browser.defaultBrowserContext | default browser context}:
*
* ```ts
* const context = browser.defaultBrowserContext();
* await context.overridePermissions('https://html5demos.com', [
* 'geolocation',
* ]);
* ```
*
* @param origin - The origin to grant permissions to, e.g.
* "https://example.com".
* @param permissions - An array of permissions to grant. All permissions that
* are not listed here will be automatically denied.
*/
abstract overridePermissions(
origin: string,
permissions: Permission[]
): Promise<void>;
/**
* Clears all permission overrides for this
* {@link BrowserContext | browser context}.
*
* @example Clearing overridden permissions in the
* {@link Browser.defaultBrowserContext | default browser context}:
*
* ```ts
* const context = browser.defaultBrowserContext();
* context.overridePermissions('https://example.com', ['clipboard-read']);
* // do stuff ..
* context.clearPermissionOverrides();
* ```
*/
abstract clearPermissionOverrides(): Promise<void>;
/**
* Creates a new {@link Page | page} in this
* {@link BrowserContext | browser context}.
*/
abstract newPage(): Promise<Page>;
/**
* Gets the {@link Browser | browser} associated with this
* {@link BrowserContext | browser context}.
*/
abstract browser(): Browser;
/**
* Closes this {@link BrowserContext | browser context} and all associated
* {@link Page | pages}.
*
* @remarks The
* {@link Browser.defaultBrowserContext | default browser context} cannot be
* closed.
*/
abstract close(): Promise<void>;
/**
* Whether this {@link BrowserContext | browser context} is closed.
*/
get closed(): boolean {
return !this.browser().browserContexts().includes(this);
}
/**
* Identifier for this {@link BrowserContext | browser context}.
*/
get id(): string | undefined {
return undefined;
}
/** @internal */
[disposeSymbol](): void {
return void this.close().catch(debugError);
}
/** @internal */
[asyncDisposeSymbol](): Promise<void> {
return this.close();
}
}
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