import { type ReactNode } from 'react';
import { EdgePdfViewer } from '@edgepdf/viewer-js';
import type { Marker, ZoomState } from '@edgepdf/types';
/**
 * Viewer context value containing viewer instance and state
 */
export interface ViewerContextValue {
    /** Viewer instance */
    viewer: EdgePdfViewer | null;
    /** Whether viewer is initialized */
    isInitialized: boolean;
    /** Current markers */
    markers: Marker[];
    /** Current zoom state */
    zoomState: ZoomState | null;
    /** Whether viewer is in fullscreen mode */
    isFullscreen: boolean;
    /** Toggle fullscreen mode (set by pdf-viewer component) */
    toggleFullscreen?: () => void;
    /** Internal: Function to update context value (used by EdgePDFViewer) */
    setContextValue: (updates: Partial<Omit<ViewerContextValue, 'setContextValue'>>) => void;
}
/**
 * Props for ViewerProvider
 */
export interface ViewerProviderProps {
    /** Children components */
    children: ReactNode;
}
/**
 * ViewerProvider - Provides viewer context to child components
 *
 * Provides an empty context that can be updated by EdgePDFViewer.
 * This allows hooks to be used anywhere within the provider tree.
 *
 * @example
 * ```tsx
 * <ViewerProvider>
 *   <App />
 * </ViewerProvider>
 * ```
 */
export declare function ViewerProvider({ children }: ViewerProviderProps): React.JSX.Element;
/**
 * Hook to access viewer context
 *
 * @throws {Error} If used outside ViewerProvider
 * @returns Viewer context value
 *
 * @example
 * ```tsx
 * function MyComponent() {
 *   const { viewer, isInitialized } = useViewerContext();
 *   // Use viewer...
 * }
 * ```
 */
export declare function useViewerContext(): ViewerContextValue;
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