/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type { Protocol } from 'devtools-protocol';
import { type CDPSession } from '../api/CDPSession.js';
import type { GeolocationOptions, MediaFeature } from '../api/Page.js';
import type { Viewport } from '../common/Viewport.js';
/**
* @internal
*/
export interface ClientProvider {
clients(): CDPSession[];
registerState(state: EmulatedState<any>): void;
}
/**
* @internal
*/
export declare class EmulatedState<T extends {
active: boolean;
}> {
#private;
constructor(initialState: T, clientProvider: ClientProvider, updater: (client: CDPSession, state: T) => Promise<void>);
setState(state: T): Promise<void>;
get state(): T;
sync(): Promise<void>;
}
/**
* @internal
*/
export declare class EmulationManager implements ClientProvider {
#private;
constructor(client: CDPSession);
updateClient(client: CDPSession): void;
registerState(state: EmulatedState<any>): void;
clients(): CDPSession[];
registerSpeculativeSession(client: CDPSession): Promise<void>;
get javascriptEnabled(): boolean;
emulateViewport(viewport: Viewport | null): Promise<boolean>;
emulateIdleState(overrides?: {
isUserActive: boolean;
isScreenUnlocked: boolean;
}): Promise<void>;
emulateTimezone(timezoneId?: string): Promise<void>;
emulateVisionDeficiency(type?: Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type']): Promise<void>;
emulateCPUThrottling(factor: number | null): Promise<void>;
emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
emulateMediaType(type?: string): Promise<void>;
setGeolocation(options: GeolocationOptions): Promise<void>;
/**
* Resets default white background
*/
resetDefaultBackgroundColor(): Promise<void>;
/**
* Hides default white background
*/
setTransparentBackgroundColor(): Promise<void>;
setJavaScriptEnabled(enabled: boolean): Promise<void>;
}
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