import { RGBColor } from 'twa-core';
/**
 * List of events supported for listening by MainButton.
 */
export interface MainButtonEventsMap {
    /**
     * Being emitted when main button changes its active state.
     * @param isActive - current main button active state.
     */
    activeChange: (isActive: boolean) => void;
    /**
     * Being emitted when user pressed main button.
     */
    click: () => void;
    /**
     * Being emitted when main button changes its color.
     * @param color - current main button color.
     */
    colorChange: (color: RGBColor) => void;
    /**
     * Being emitted when main button changes its progress visibility.
     * @param isVisible - current main button progress visibility state.
     */
    progressVisibleChange: (isVisible: boolean) => void;
    /**
     * Being emitted when main button changes its text.
     * @param text - current main button text.
     */
    textChange: (text: string) => void;
    /**
     * Being emitted when main button changes its color.
     * @param color - current main button text color.
     */
    textColorChange: (color: RGBColor) => void;
    /**
     * Being emitted when main button changes its visibility.
     * @param isVisible - current main button visibility state.
     */
    visibleChange: (isVisible: boolean) => void;
}
/**
 * Known MainButton event name.
 */
export declare type MainButtonEventName = keyof MainButtonEventsMap;
/**
 * Returns listener for specified MainButton event.
 */
export declare type MainButtonEventListener<E extends MainButtonEventName> = MainButtonEventsMap[E];