/// <reference types="react" />
import { GhostHighlight, Highlight, PdfSelection, Tip } from "../types";
import { PDFViewer } from "pdfjs-dist/types/web/pdf_viewer";
/**
 * A set of utilities for to control the behaviour of {@link PdfHighlighter}.
 *
 * @category Context
 */
export type PdfHighlighterUtils = {
    /**
     * Checks whether a selection is progress, a ghost highlight, or an edit.
     *
     * @returns - `true` if editing, ghost highlighting, or selecting.
     */
    isEditingOrHighlighting(): boolean;
    /**
     * Get currently selected area or text selection.
     *
     * @returns - current selection or `null` if no selection is being made.
     */
    getCurrentSelection(): PdfSelection | null;
    /**
     * Get the currently present ghost highlight.
     *
     * @return - currently present ghost highlight or `null` if non-existent.
     */
    getGhostHighlight(): GhostHighlight | null;
    /**
     * Cancel any ghost highlight.
     * The selected area will stay selected until the user clicks away.
     */
    removeGhostHighlight(): void;
    /**
     * If enabled, automatic tips/popups inside of a PdfHighlighter will be disabled.
     * Additional niceties will also be provided to prevent new highlights being made.
     */
    toggleEditInProgress(flag?: boolean): void;
    /**
     * Whether an AreaHighlight is being moved/resized, or a manual highlight edit has
     * been toggled.
     *
     * @returns - `true` if AreaHighlight is being edited or edit mode was set.
     */
    isEditInProgress(): boolean;
    /**
     * Whether a mouse selection or text selection is currently being performed.
     *
     * @returns - `true` if mouse selection or text selection is being performed.
     */
    isSelectionInProgress(): boolean;
    /**
     * Scroll to a highlight in this viewer.
     *
     * @param highlight - A highlight provided to the {@link PdfHighlighter} to
     * scroll to.
     */
    scrollToHighlight(highlight: Highlight): void;
    /**
     * Get a reference to the currently used instance of a PDF Viewer.
     *
     * @returns - The currently active PDF Viewer.
     */
    getViewer(): PDFViewer | null;
    /**
     * Get the currently active tip, if any.
     *
     * @returns - the currently active tip or `null` if inactive.
     */
    getTip(): Tip | null;
    /**
     * Set a tip to be displayed in the current PDF Viewer.
     *
     * @param tip - tip to be displayed, or `null` to hide any tip.
     */
    setTip(tip: Tip | null): void;
    /**
     * Callback to update any currently active tip's position. This will make sure
     * the tip is visible above/below its highlight.
     */
    updateTipPosition(): void;
};
export declare const PdfHighlighterContext: import("react").Context<PdfHighlighterUtils | undefined>;
/**
 * Custom hook for providing {@link PdfHighlighterUtils}. Must be used
 * within a child of {@link PdfHighlighter}.
 *
 * @category Context
 */
export declare const usePdfHighlighterContext: () => PdfHighlighterUtils;