/**
 * Module to interact with the menu-specific part of the SDK.
 * This object is used to show View Configuration, Action Menu and Navigation Bar Menu.
 * @module
 */
/**
 * @hidden
 * Represents information about item in View Configuration.
 *
 * @internal
 * Limited to Microsoft-internal use
 */
export interface ViewConfiguration {
    /**
     * @hidden
     * Unique identifier of view.
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    id: string;
    /**
     * @hidden
     * Display title of the view.
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    title: string;
    /**
     * @hidden
     * Additional information for accessibility.
     *
     * @internal
     * Limited to Microsoft-internal use
     */
    contentDescription?: string;
}
/**
 * Defines how a menu item should appear in the NavBar.
 */
export declare enum DisplayMode {
    /**
     * Only place this item in the NavBar if there's room for it.
     * If there's no room, item is shown in the overflow menu.
     */
    ifRoom = 0,
    /**
     * Never place this item in the NavBar.
     * The item would always be shown in NavBar's overflow menu.
     */
    overflowOnly = 1
}
/**
 * @hidden
 * Represents information about menu item for Action Menu and Navigation Bar Menu.
 */
export declare class MenuItem {
    /**
     * @hidden
     * Unique identifier for the menu item.
     */
    id: string;
    /**
     * @hidden
     * Display title of the menu item.
     */
    title: string;
    /**
     * @hidden
     * Display icon of the menu item. The icon value must be a string having SVG icon content.
     */
    icon: string;
    /**
     * @hidden
     * Selected state display icon of the menu item. The icon value must be a string having SVG icon content.
     */
    iconSelected?: string;
    /**
     * @hidden
     * Additional information for accessibility.
     */
    contentDescription?: string;
    /**
     * @hidden
     * State of the menu item
     */
    enabled: boolean;
    /**
     * @hidden
     * Interface to show list of items on selection of menu item.
     */
    viewData?: ViewData;
    /**
     * @hidden
     * Whether the menu item is selected or not
     */
    selected: boolean;
    /**
     * The Display Mode of the menu item.
     * Default Behaviour would be DisplayMode.ifRoom if null.
     * Refer {@link DisplayMode}
     */
    displayMode?: DisplayMode;
}
/**
 * @hidden
 * Represents information about view to show on Navigation Bar Menu item selection
 */
export interface ViewData {
    /**
     * @hidden
     * Display header title of the item list.
     */
    listTitle?: string;
    /**
     * @hidden
     * Type of the menu item.
     */
    listType: MenuListType;
    /**
     * @hidden
     * Array of MenuItem. Icon value will be required for all items in the list.
     */
    listItems: MenuItem[];
}
/**
 * @hidden
 * Represents information about type of list to display in Navigation Bar Menu.
 */
export declare enum MenuListType {
    dropDown = "dropDown",
    popOver = "popOver"
}
/**
 * @hidden
 * Register navBarMenuItemPress, actionMenuItemPress, setModuleView handlers.
 *
 * @internal
 * Limited to Microsoft-internal use.
 */
export declare function initialize(): void;
/**
 * @hidden
 * Registers list of view configurations and it's handler.
 * Handler is responsible for listening selection of View Configuration.
 *
 * @param viewConfig - List of view configurations. Minimum 1 value is required.
 * @param handler - The handler to invoke when the user selects view configuration.
 */
export declare function setUpViews(viewConfig: ViewConfiguration[], handler: (id: string) => boolean): void;
/**
 * @hidden
 * Used to set menu items on the Navigation Bar. If icon is available, icon will be shown, otherwise title will be shown.
 *
 * @param items List of MenuItems for Navigation Bar Menu.
 * @param handler The handler to invoke when the user selects menu item.
 */
export declare function setNavBarMenu(items: MenuItem[], handler: (id: string) => boolean): void;
/** Parameters used to create an action menu within an app */
export interface ActionMenuParameters {
    /**
     * @hidden
     * Display title for Action Menu
     */
    title: string;
    /**
     * @hidden
     * List of MenuItems for Action Menu
     */
    items: MenuItem[];
}
/**
 * @hidden
 * Used to show Action Menu.
 *
 * @param params - Parameters for Menu Parameters
 * @param handler - The handler to invoke when the user selects menu item.
 */
export declare function showActionMenu(params: ActionMenuParameters, handler: (id: string) => boolean): void;
/**
 * Checks if the menus capability is supported by the host
 * @returns boolean to represent whether the menus capability is supported
 *
 * @throws Error if {@linkcode app.initialize} has not successfully completed
 */
export declare function isSupported(): boolean;