import { BridgePostEventWithoutArgsName } from './post-event';
import { TwaThemeParams } from 'twa-theme-params';
/**
 * Information returned by "web_app_request_viewport" event.
 */
export interface RequestViewportInfo {
    height: number;
    isExpanded: boolean;
    isStateStable: boolean;
}
/**
 * Information returned by "web_app_request_theme" event.
 */
export interface RequestThemeInfo extends TwaThemeParams {
}
/**
 * Describes list of events, which could be awaited by Bridge. Key is event
 * name, value is Promise result.
 */
export interface BridgePostAwaitEventsMap {
    /**
     * @see BridgePostEventsMap.web_app_request_theme
     * @see BridgeEventsMap.theme_changed
     */
    web_app_request_theme: RequestThemeInfo;
    /**
     * @see BridgePostEventsMap.web_app_request_viewport
     * @see BridgeEventsMap.viewport_changed
     */
    web_app_request_viewport: RequestViewportInfo;
    /**
     * @see BridgePostEventsMap.web_app_open_popup
     * @see BridgeEventsMap.popup_closed
     */
    web_app_open_popup: string | null;
}
/**
 * Event names which could be awaited by Bridge.
 */
export declare type BridgePostAwaitEventName = keyof BridgePostAwaitEventsMap;
/**
 * Names of awaitable events, which do not require arguments.
 */
export declare type BridgePostAwaitEventWithoutArgsName = Extract<BridgePostEventWithoutArgsName, BridgePostAwaitEventName>;
/**
 * Names of awaitable events, which require arguments.
 */
export declare type BridgePostAwaitEventWithArgsName = Exclude<BridgePostAwaitEventName, BridgePostAwaitEventWithoutArgsName>;
/**
 * Returns post awaitable event args.
 */
export declare type BridgePostAwaitEventResult<E extends BridgePostAwaitEventName> = BridgePostAwaitEventsMap[E];