import type { ReactNode } from "react";
import type { ThemeTokens, ViewerServices } from "../plugin/services";
/**
 * Default tool ids supported by the bundled toolbar. Hosts that want
 * a different set pass `tools={...}`; hosts that want a totally
 * different toolbar shouldn't use `<LensPDFViewer>` and should
 * compose the lower-level components themselves.
 *
 * @public
 */
export type LensPDFViewerTool = "zoom" | "color-picker" | "measure" | "layers";
/**
 * Props for the default {@link LensPDFViewer} composition.
 *
 * @public
 */
/**
 * Viewer state exposed to slot render props.
 *
 * @public
 */
export interface LensPDFViewerState {
    zoom: number;
    setZoom: (z: number) => void;
    currentPage: number;
    setCurrentPage: (n: number) => void;
    pageCount: number | null;
    activeTool: "none" | "color-picker" | "measure";
    setActiveTool: (t: "none" | "color-picker" | "measure") => void;
    enabledLayers: Set<number>;
    toggleLayer: (ocgIndex: number) => void;
    setAllLayers: (enabled: boolean) => void;
    hasLayers: boolean;
    layersOpen: boolean;
    setLayersOpen: (v: boolean) => void;
}
export interface LensPDFViewerProps {
    /** PDF URL the viewer fetches. Sign / scope upstream. */
    pdfUrl: string;
    /** Optional override for the pdf.js worker URL. */
    workerSrc?: string;
    /** Optional services to override the pdf.js fallback path. */
    services?: ViewerServices;
    /** Optional theme tokens. */
    tokens?: ThemeTokens;
    /** Optional className hook for hosts that want to restyle the chrome. */
    className?: string;
    /** Page rendering mode. */
    mode?: "scroll" | "single";
    /** Tools shown in the toolbar / mobile drawer. */
    tools?: ReadonlyArray<LensPDFViewerTool>;
    /** Initial zoom percentage. Default `100`. */
    initialZoom?: number;
    /** Optional brand label rendered in the top-left of the toolbar. */
    brand?: string;
    /**
     * Render prop for a custom header. When provided, replaces the
     * default toolbar. Receives viewer state for building controls.
     */
    header?: (state: LensPDFViewerState) => ReactNode;
    /**
     * Render prop for a custom sidebar. When provided, replaces the
     * default layer panel sidebar.
     */
    sidebar?: (state: LensPDFViewerState) => ReactNode;
    /** Static footer content rendered below the viewer stage. */
    footer?: ReactNode;
}
/**
 * One-line responsive PDF viewer.
 *
 * ```tsx
 * <LensPDFViewer pdfUrl="https://example.com/file.pdf" />
 * ```
 *
 * @public
 */
export declare function LensPDFViewer(props: LensPDFViewerProps): import("react").JSX.Element;
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