/**
 * A toolbar for editors.
 * @author Louis-Dominique Dubeau
 * @license MPL 2.0
 * @copyright Mangalam Research Center for Buddhist Languages
 */
import { Button } from "./button";
export interface AddOptions {
    /**
     * If true, push the options at the right end of the toolbar. Note that this
     * is can only be used when appending buttons. And this is something
     * independent from the mere fact of appending. When using this option, the
     * appended button will be visually pushed away from the previous button,
     * towards the right end of the toolbar.
     */
    right?: boolean;
    /** If true, prepend the buttons rather than append them. */
    prepend?: boolean;
}
/**
 * A toolbar is a horizontal element which contains a series of buttons from
 * which the user can initiate actions.
 *
 * The toolbar contains buttons for two types of buttons:
 *
 * - Buttons not associated with any specific mode. These are editor-wide
 *   actions that may be set by the application in which the editor instance is
 *   used.
 *
 * - Buttons specific to a mode.
 */
export declare class Toolbar {
    private readonly divider;
    private readonly modeSpan;
    /** The top DOM element of the toolbar. */
    readonly top: Element;
    constructor();
    /**
     * Add one or more buttons to the toolbar.
     *
     * @param buttons A single button or an array of buttons to add.
     *
     * @param options Parameters affecting how the addition is made.
     */
    addButton(buttons: ReadonlyArray<Button> | Button, options?: AddOptions): void;
    /**
     * Set the mode related buttons. This replaces any buttons previously set by
     * this method.
     *
     * @param buttons The buttons to add to the toolbar.
     */
    setModeButtons(buttons: Button[]): void;
}