import { Manifest } from '@prose-reader/shared';
import { ReactiveEntity } from '../utils/ReactiveEntity';
import { BridgeEvent } from './BridgeEvent';
export type ContextState = {
    manifest: Manifest;
    rootElement?: HTMLElement;
    hasVerticalWriting?: boolean;
    assumedRenditionLayout: "reflowable" | "pre-paginated";
    isFullyPrePaginated: boolean;
};
export declare class Context extends ReactiveEntity<ContextState> {
    bridgeEvent: BridgeEvent;
    readonly document: Document;
    constructor(manifest: Manifest, ownerDocument?: Document);
    update(newState: Partial<Omit<ContextState, "manifest">>): void;
    isRTL: () => boolean;
    get manifest(): Manifest;
    get readingDirection(): "ltr" | "rtl" | undefined;
}