import type { ReactiveController, ReactiveControllerHost } from 'lit';
import type { ViewportPanBehavior, ViewportPanSession, ViewportPanProposal, ViewportPoint, ViewportTransform, ViewportZoomProposal } from './viewport.types.js';
type ViewportGestureNavigationHost = HTMLElement & ReactiveControllerHost & {
    readonly _internals: ElementInternals;
    readonly behaviorPan: ViewportPanBehavior;
    readonly pannable: boolean;
    readonly zoomable: boolean;
    readonly dragThreshold: number;
    requestPan(proposal: ViewportPanProposal): boolean;
    requestZoom(proposal: ViewportZoomProposal): boolean;
    startPan(proposal: ViewportPanProposal): ViewportPanSession | undefined;
};
interface ViewportGestureNavigationDelegate {
    readonly clampScale: (value: number) => number;
    readonly clientToViewport: (clientX: number, clientY: number) => ViewportPoint;
    readonly getTransform: () => ViewportTransform;
    readonly requestAdmittedPinchZoom: (proposal: ViewportZoomProposal) => boolean;
}
export declare class ViewportGestureNavigationController implements ReactiveController {
    #private;
    constructor(host: ViewportGestureNavigationHost, delegate: ViewportGestureNavigationDelegate);
    hostConnected(): void;
    hostDisconnected(): void;
    hostUpdated(): void;
    rebasePointerSessions(): void;
}
export {};