import type { ReactiveController, ReactiveControllerHost } from 'lit';
import type { ViewportAnimationOptions, ViewportTransform } from './viewport.types.js';
interface ViewportSize {
    readonly width: number;
    readonly height: number;
}
export interface ViewportAnimationDelegate {
    readonly commitTransform: (transform: ViewportTransform) => void;
    readonly clampScale: (value: number) => number;
    readonly getTransform: () => ViewportTransform;
    readonly getViewportSize: () => ViewportSize;
}
export declare class ViewportAnimationController implements ReactiveController {
    #private;
    constructor(reactiveHost: ReactiveControllerHost, delegate: ViewportAnimationDelegate);
    get destinationScale(): number | undefined;
    animateTo(target: Partial<ViewportTransform>, options?: ViewportAnimationOptions): void;
    cancel(): void;
    hostDisconnected(): void;
}
export {};