import * as React from 'react';
import type { Override } from '../helpers/overrides';
import { STATE_CHANGE_TYPES, OPTION_LIST_SIZE } from './constants';
import type { SyntheticEvent, FocusEvent, MouseEvent } from 'react';
export declare type Item = any;
export declare type ArrayItems = ReadonlyArray<Item>;
export declare type GroupedItems = {
    __ungrouped: ArrayItems;
    [x: string]: ArrayItems;
};
export declare type Items = ArrayItems | GroupedItems;
export declare type GetItemLabelFn = (item: Item) => React.ReactNode;
export declare type GetProfileItemLabelsFn = (item: Item) => {
    title?: string;
    subtitle?: string;
    body?: string;
};
export declare type GetProfileItemImgFn = (item: Item) => string | React.ComponentType<any>;
export declare type GetProfileItemImgTextFn = (item: Item) => string;
export declare type SetRootRefFn = (ref: React.RefObject<typeof HTMLElement>) => void;
export declare type RootRef = {
    current: null | HTMLElement;
};
export declare type OnItemSelectFn = (a: {
    item: Item;
    event?: SyntheticEvent<HTMLElement> | KeyboardEvent;
}) => unknown;
export declare type ProfileOverrides = {
    List?: Override;
    ListItemProfile?: Override;
    ProfileImgContainer?: Override;
    ProfileImg?: Override;
    ProfileLabelsContainer?: Override;
    ProfileTitle?: Override;
    ProfileSubtitle?: Override;
    ProfileBody?: Override;
};
export declare type RenderItemProps = {
    disabled?: boolean;
    ref?: React.RefObject<typeof HTMLElement>;
    id?: string | null;
    isFocused?: boolean;
    isHighlighted?: boolean;
    onClick?: (event: MouseEvent<HTMLElement>) => void;
    onMouseEnter?: (event: MouseEvent<HTMLElement>) => void;
    resetMenu?: () => void;
};
export declare type GetRequiredItemPropsFn = (item: Item, index: number) => RenderItemProps;
export declare type StateReducerFn = (changeType: keyof typeof STATE_CHANGE_TYPES | undefined | null, changes: Partial<StatefulContainerState>, currentState: StatefulContainerState) => StatefulContainerState;
export declare type StatefulContainerState = {
    activedescendantId?: string | null;
    highlightedIndex: number;
    isFocused: boolean;
};
export declare type InitialState = {
    activedescendantId?: string | null;
    highlightedIndex?: number;
    isFocused?: boolean;
};
export declare type RenderProps = StatefulContainerState & {
    items: Items;
    getRequiredItemProps: GetRequiredItemPropsFn;
};
/**
 * Component Prop Types
 * ====================
 * Required and Optional are split into separate object types, and internals are all
 * marked as required because otherwise defaultProps will not work properly
 */
export declare type StatefulContainerProps = {
    /** List of menu items. */
    items: Items;
    /** Initial state of the stateful menu. */
    initialState: InitialState;
    /** State reducer to intercept state changes and return new internal state */
    stateReducer: StateReducerFn;
    /** Function to get props for each rendered item. This will have some defaults needed for keyboard
     * bindings to work properly. Every rendered item should call this.
     */
    getRequiredItemProps: GetRequiredItemPropsFn;
    onActiveDescendantChange?: (id?: string) => unknown;
    /** Callback executed on menu item clicks. */
    onItemSelect: OnItemSelectFn;
    /** Ref for the menu container element. Used to capture key events for navigation */
    rootRef?: RootRef;
    /** Node for menu's keyboard listener. Default is null and keyboard handlers will listen on menu root. */
    keyboardControlNode: {
        current: HTMLElement | null;
    };
    /** whether has keyboard type-ahead function */
    typeAhead: boolean;
    /** Child as function pattern. */
    children: (a: RenderProps) => React.ReactNode;
    addMenuToNesting?: (ref: {
        current: HTMLElement | null;
    }) => void;
    removeMenuFromNesting?: (ref: {
        current: HTMLElement | null;
    }) => void;
    getParentMenu?: (ref: {
        current: HTMLElement | null;
    }) => {
        current: HTMLElement | null;
    } | undefined | null;
    getChildMenu?: (ref: {
        current: HTMLElement | null;
    }) => {
        current: HTMLElement | null;
    } | undefined | null;
    nestedMenuHoverIndex?: number;
    isNestedMenuVisible?: (ref: {
        current: HTMLElement | null;
    }) => boolean;
    forceHighlight: boolean;
};
export declare type MenuOverrides = {
    EmptyState?: Override;
    List?: Override;
    Option?: Override;
    OptgroupHeader?: Override;
    ListItem?: Override;
};
export declare type MenuProps = {
    overrides?: MenuOverrides;
    /** Renders all menu content for SEO purposes regardless of menu  state */
    renderAll?: boolean;
};
export declare type MenuProfileProps = {
    /** Returns an object consisting of title, subtitle, and body to render menu item */
    getProfileItemLabels: GetProfileItemLabelsFn;
    /** Returns either an image source url, or a full React component to render as the image. */
    getProfileItemImg: GetProfileItemImgFn;
    /** Returns the alt text for the image */
    getProfileItemImgText: GetProfileItemImgTextFn;
    overrides?: ProfileOverrides;
};
export declare type SharedStatelessProps = {
    /** Id of the highlighted menu item. */
    activedescendantId?: string | null;
    /** Function to get props for each rendered item. This will have some defaults needed for keyboard
     * bindings to work properly. Every rendered item should call this.
     */
    /** Passed to the top level menu element. */
    'aria-label'?: string;
    getRequiredItemProps?: GetRequiredItemPropsFn;
    isFocused?: boolean;
    handleMouseLeave?: (event: MouseEvent<HTMLElement>) => unknown;
    /** Index of highlighted menu item. */
    highlightedIndex?: number;
    /** List of menu items. */
    items: Items;
    /** Message to be displayed if no menu items are passed in. */
    noResultsMsg?: React.ReactNode;
    onBlur?: (event: FocusEvent<HTMLElement>) => unknown;
    onFocus?: (event: FocusEvent<HTMLElement>) => unknown;
    /** Ref for the menu container element. Used to capture key events for navigation */
    rootRef?: RootRef;
    focusMenu?: (event: FocusEvent | MouseEvent | KeyboardEvent) => unknown;
    unfocusMenu?: () => unknown;
    handleKeyDown?: (event: KeyboardEvent) => unknown;
};
export declare type StatefulMenuProps = {
    /** List of menu items. */
    items: Items;
    /** Initial state of the stateful menu. */
    initialState?: InitialState;
    /** State reducer to intercept state changes and return new internal state */
    stateReducer?: StateReducerFn;
    /** Function to get props for each rendered item. This will have some defaults needed for keyboard
     * bindings to work properly. Every rendered item should call this.
     */
    getRequiredItemProps?: GetRequiredItemPropsFn;
    onActiveDescendantChange?: (id?: string) => unknown;
    /** Callback executed on menu item clicks. */
    onItemSelect?: OnItemSelectFn;
    /** Ref for the menu container element. Used to capture key events for navigation */
    rootRef?: RootRef;
    /** Child as function pattern. */
    children?: (a: RenderProps) => React.ReactNode;
    /** whether has keyboard type-ahead function */
    typeAhead?: boolean;
    addMenuToNesting?: (ref: {
        current: HTMLElement | null;
    }) => void;
    removeMenuFromNesting?: (ref: {
        current: HTMLElement | null;
    }) => void;
    getParentMenu?: (ref: {
        current: HTMLElement | null;
    }) => {
        current: HTMLElement | null;
    } | undefined | null;
    getChildMenu?: (ref: {
        current: HTMLElement | null;
    }) => {
        current: HTMLElement | null;
    } | undefined | null;
    nestedMenuHoverIndex?: number;
    isNestedMenuVisible?: (ref: {
        current: HTMLElement | null;
    }) => boolean;
} & MenuProps;
export declare type StatefulMenuProfileProps = StatefulContainerProps & MenuProfileProps;
export declare type StatelessMenuProps = SharedStatelessProps & MenuProps;
export declare type StatelessMenuProfileProps = SharedStatelessProps & MenuProfileProps;
export declare type OptionListProps = {
    /** Item to parse and render. */
    item: Item;
    /** Function used to get the string label for each item. */
    getItemLabel: GetItemLabelFn;
    /** Used to render a sub menu at this menu item. You'll often render another menu from this function. */
    getChildMenu?: (item: Item) => React.ReactNode;
    onClick?: (event: MouseEvent) => unknown;
    /** Callback used to change highlighted index in stateful menu. */
    onMouseDown?: (event: MouseEvent) => unknown;
    /** Callback used to change highlighted index in stateful menu. */
    onMouseEnter?: (event: MouseEvent) => unknown;
    /** Renders UI in defined scale. */
    size?: keyof typeof OPTION_LIST_SIZE;
    overrides?: {
        ListItem?: Override;
        ListItemAnchor?: Override;
        ChildMenuPopover?: Override;
    };
    renderHrefAsAnchor?: boolean;
    /** Utility to reset menu to default state. Useful for rendering child menus. */
    resetMenu?: () => void;
    /** Renders UI in 'highlighted' state. */
    $isHighlighted?: boolean;
    /** Is the parent menu focused. determines if highlighted item should be blue or black */
    $isFocused?: boolean;
    /** Renders all menu content for SEO purposes regardless of menu  state */
    renderAll?: boolean;
    /** Is the item disabled */
    $disabled?: boolean;
    /** Is the item disabled */
    'aria-disabled'?: boolean;
    /** Is the item selected */
    'aria-selected'?: boolean;
    /** Id of the item */
    id?: string;
    /** Accessibility role of the item */
    role?: string;
};
export declare type OptionProfileProps = {
    /** Item to parse and render. */
    item: Item;
    /** Used to render a sub menu at this menu item. You'll often render another menu from this function. */
    getChildMenu?: (item: Item) => React.ReactNode;
    /** Returns an object consisting of title, subtitle, and body to render menu item */
    getProfileItemLabels: GetProfileItemLabelsFn;
    /** Returns either an image source url, or a full React component to render as the image. */
    getProfileItemImg: GetProfileItemImgFn;
    /** Returns the alt text for the image */
    getProfileItemImgText: GetProfileItemImgTextFn;
    overrides?: {
        ListItemProfile?: Override;
        ProfileImgContainer?: Override;
        ProfileImg?: Override;
        ProfileLabelsContainer?: Override;
        ProfileTitle?: Override;
        ProfileSubtitle?: Override;
        ProfileBody?: Override;
        ChildMenuPopover?: Override;
    };
    /** Utility to reset menu to default state. Useful for rendering child menus. */
    resetMenu?: () => void;
    /** Renders UI in 'highlighted' state. */
    $isHighlighted?: boolean;
    /** Renders all menu content for SEO purposes regardless of menu  state */
    renderAll?: boolean;
};
export declare type NestedMenuRef = {
    current: HTMLElement | null;
};
export declare type NestedMenuContextProps = {
    addMenuToNesting: (ref: NestedMenuRef) => void;
    removeMenuFromNesting: (ref: NestedMenuRef) => void;
    getParentMenu: (ref: NestedMenuRef) => NestedMenuRef | undefined | null;
    getChildMenu: (ref: NestedMenuRef) => NestedMenuRef | undefined | null;
    nestedMenuHoverIndex: number;
    isNestedMenuVisible: (ref: NestedMenuRef) => boolean;
    mountRef: NestedMenuRef;
};
