import { BasePlugin } from '../base';
export declare const PLUGIN_KEY = "dragToScroll";
export declare const PLUGIN_PRIORITY = 100;
/**
 * Represents viewport boundaries used for drag-to-scroll detection.
 */
interface Boundaries {
    width?: number;
    height?: number;
    left: number;
    right: number;
    top: number;
    bottom: number;
}
/**
 * @description
 * Plugin used to scroll Handsontable by selecting a cell and dragging outside of the visible viewport.
 *
 *
 * @class DragToScroll
 * @plugin DragToScroll
 */
export declare class DragToScroll extends BasePlugin {
    #private;
    /**
     * Returns the plugin key used to identify this plugin in Handsontable settings.
     */
    static get PLUGIN_KEY(): string;
    /**
     * Returns the priority order used to determine the order in which plugins are initialized.
     */
    static get PLUGIN_PRIORITY(): number;
    /**
     * Returns the default settings applied when the plugin is enabled without explicit configuration.
     */
    static get DEFAULT_SETTINGS(): {
        interval: {
            min: number;
            max: number;
        };
        rampDistance: number;
    };
    /**
     * Size of an element and its position relative to the viewport,
     * e.g. {bottom: 449, height: 441, left: 8, right: 814, top: 8, width: 806, x: 8, y:8}.
     *
     * @type {DOMRect}
     */
    boundaries: Boundaries | null;
    /**
     * Callback function.
     *
     * @private
     * @type {Function}
     */
    callback: ((diffX: number, diffY: number) => void) | null;
    /**
     * Flag indicates mouseDown/mouseUp.
     *
     * @private
     * @type {boolean}
     */
    listening: boolean;
    /**
     * Checks if the plugin is enabled in the handsontable settings. This method is executed in {@link Hooks#beforeInit}
     * hook and if it returns `true` then the {@link DragToScroll#enablePlugin} method is called.
     *
     * @returns {boolean}
     */
    isEnabled(): boolean;
    /**
     * Enables the plugin functionality for this Handsontable instance.
     */
    enablePlugin(): void;
    /**
     * Updates the plugin's state.
     *
     * This method is executed when [`updateSettings()`](@/api/core.md#updatesettings) is invoked with any of the following configuration options:
     *  - [`dragToScroll`](@/api/options.md#dragtoscroll)
     */
    updatePlugin(): void;
    /**
     * Disables the plugin functionality for this Handsontable instance.
     */
    disablePlugin(): void;
    /**
     * Sets the boundaries/dimensions of the scrollable viewport.
     *
     * @param {DOMRect|{left: number, right: number, top: number, bottom: number}} [boundaries] An object with
     * coordinates. Contains the window boundaries by default. The object is compatible with DOMRect.
     */
    setBoundaries(boundaries?: Boundaries): void;
    /**
     * Changes callback function.
     *
     * @param {Function} callback The callback function.
     */
    setCallback(callback: (diffX: number, diffY: number) => void): void;
    /**
     * Checks if the mouse position (X, Y) is outside the viewport and fires a callback with calculated X an Y diffs
     * between passed boundaries.
     *
     * @param {number} x Mouse X coordinate to check.
     * @param {number} y Mouse Y coordinate to check.
     */
    check(x: number, y: number): void;
    /**
     * Enables listening on `mousemove` event.
     *
     * @private
     */
    listen(): void;
    /**
     * Disables listening on `mousemove` event.
     *
     * @private
     */
    unlisten(): void;
    /**
     * Returns current state of listening.
     *
     * @private
     * @returns {boolean}
     */
    isListening(): boolean;
    /**
     * Registers dom listeners.
     *
     * @private
     */
    registerEvents(): void;
    /**
     * Unbinds the events used by the plugin.
     *
     * @private
     */
    unregisterEvents(): void;
    /**
     * Destroys the plugin instance.
     */
    destroy(): void;
}
export {};