/**
 * @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */
/**
 * @module core/editingkeystrokehandler
 */
import { KeystrokeHandler, type PriorityString } from '@ckeditor/ckeditor5-utils';
import { type Editor } from './editor/editor.js';
/**
 * A keystroke handler for editor editing. Its instance is available
 * in {@link module:core/editor/editor~Editor#keystrokes} so plugins
 * can register their keystrokes.
 *
 * E.g. an undo plugin would do this:
 *
 * ```ts
 * editor.keystrokes.set( 'Ctrl+Z', 'undo' );
 * editor.keystrokes.set( 'Ctrl+Shift+Z', 'redo' );
 * editor.keystrokes.set( 'Ctrl+Y', 'redo' );
 * ```
 */
export declare class EditingKeystrokeHandler extends KeystrokeHandler {
    /**
     * The editor instance.
     */
    readonly editor: Editor;
    /**
     * Creates an instance of the keystroke handler.
     */
    constructor(editor: Editor);
    /**
     * Registers a handler for the specified keystroke.
     *
     * The handler can be specified as a command name or a callback.
     *
     * @param keystroke Keystroke defined in a format accepted by
     * the {@link module:utils/keyboard~parseKeystroke} function.
     * @param callback If a string is passed, then the keystroke will
     * {@link module:core/editor/editor~Editor#execute execute a command}.
     * If a function, then it will be called with the
     * {@link module:engine/view/observer/keyobserver~ViewDocumentKeyEventData key event data} object and
     * a `cancel()` helper to both `preventDefault()` and `stopPropagation()` of the event.
     * @param options Additional options.
     * @param options.priority The priority of the keystroke callback. The higher the priority value
     * the sooner the callback will be executed. Keystrokes having the same priority
     * are called in the order they were added.
     */
    set(keystroke: string | Array<string | number>, callback: EditingKeystrokeCallback, options?: {
        readonly priority?: PriorityString;
    }): void;
}
/**
 * Command name or a callback to be executed when a given keystroke is pressed.
 */
export type EditingKeystrokeCallback = string | ((ev: KeyboardEvent, cancel: () => void) => void);