import * as React from 'react';
import { IStyle, ITheme } from '../../Styling';
import { IRefObject, IRenderFunction, IStyleFunctionOrObject, IComponentAs } from '../../Utilities';
import { IIconProps } from '../Icon/Icon.types';
import { IButtonProps } from '../Button/Button.types';
/**
 * {@docCategory Nav}
 */
export interface INav {
    /**
     * The meta 'key' property of the currently selected NavItem of the Nav. Can return
     * undefined if the currently selected nav item has no populated key property. Be aware
     * that in order for Nav to properly understand which key is selected all NavItems in
     * all groups of the Nav must have populated key properties.
     */
    selectedKey: string | undefined;
    /**
     * Sets focus to the first tabbable item in the zone.
     * @param forceIntoFirstElement - If true, focus will be forced into the first element, even
     * if focus is already in the focus zone.
     * @returns True if focus could be set to an active element, false if no operation was taken.
     */
    focus(forceIntoFirstElement?: boolean): boolean;
}
/**
 * {@docCategory Nav}
 */
export interface INavProps {
    /**
     * Optional callback to access the INav interface. Use this instead of ref for accessing
     * the public methods and properties of the component.
     */
    componentRef?: IRefObject<INav>;
    /**
     * Call to provide customized styling that will layer on top of the variant rules
     */
    styles?: IStyleFunctionOrObject<INavStyleProps, INavStyles>;
    /**
     * Theme provided by HOC.
     */
    theme?: ITheme;
    /**
     * Additional css class to apply to the Nav
     * @defaultvalue undefined
     */
    className?: string;
    /**
     * A collection of link groups to display in the navigation bar
     */
    groups: INavLinkGroup[] | null;
    /**
     * Used to customize how content inside the group header is rendered
     * @defaultvalue Default group header rendering
     */
    onRenderGroupHeader?: IRenderFunction<INavLinkGroup>;
    /**
     * Render a custom link in place of the normal one.
     * This replaces the entire button rather than simply button content
     */
    linkAs?: IComponentAs<IButtonProps>;
    /**
     * Used to customize how content inside the link tag is rendered
     * @defaultvalue Default link rendering
     */
    onRenderLink?: IRenderFunction<INavLink>;
    /**
     * Function callback invoked when a link in the navigation is clicked
     */
    onLinkClick?: (ev?: React.MouseEvent<HTMLElement>, item?: INavLink) => void;
    /**
     * Function callback invoked when the chevron on a link is clicked
     */
    onLinkExpandClick?: (ev?: React.MouseEvent<HTMLElement>, item?: INavLink) => void;
    /**
     * Indicates whether the navigation component renders on top of other content in the UI
     */
    isOnTop?: boolean;
    /**
     * (Optional) The key of the nav item initially selected.
     */
    initialSelectedKey?: string;
    /**
     * (Optional) The key of the nav item selected by caller.
     */
    selectedKey?: string;
    /**
     * (Optional) The nav container aria label.
     */
    ariaLabel?: string;
    /**
     * (Optional) The nav container aria label. The link name is prepended to this label.
     * If not provided, the aria label will default to the link name.
     *
     * @deprecated - Use expandAriaLabel and collapseAriaLabel on groups instead
     */
    expandButtonAriaLabel?: string;
    /**
     * (Optional) The nav link selected state aria label.
     */
    selectedAriaLabel?: string;
}
/**
 * {@docCategory Nav}
 */
export interface INavLinkGroup {
    /**
     * Text to render as the header of a group
     */
    name?: string;
    /**
     * Links to render within this group
     */
    links: INavLink[];
    /**
     * The name to use for functional automation tests
     */
    automationId?: string;
    /**
     * If true, the group should render collapsed by default
     */
    collapseByDefault?: boolean;
    /**
     * Callback invoked when a group header is clicked
     */
    onHeaderClick?: (ev?: React.MouseEvent<HTMLElement>, isCollapsing?: boolean) => void;
    /**
     * ARIA label when group is collapsed and can be expanded.
     */
    expandAriaLabel?: string;
    /**
     * ARIA label when group is collapsed and can be expanded.
     */
    collapseAriaLabel?: string;
}
/**
 * {@docCategory Nav}
 */
export interface INavLink {
    /**
     * Text to render for this link
     */
    name: string;
    /**
     * URL to navigate to for this link
     */
    url: string;
    /**
     * Unique, stable key for the link, used when rendering the list of links and for tracking
     * the currently selected link.
     */
    key?: string;
    /**
     * Child links to this link, if any
     */
    links?: INavLink[];
    /**
     * Callback invoked when this link is clicked. Providing this callback will cause the link
     * to render as a button (rather than an anchor) unless forceAnchor is set to true.
     */
    onClick?: (ev?: React.MouseEvent<HTMLElement>, item?: INavLink) => void;
    /**
     * Name of an icon to render next to the link button.
     */
    icon?: string;
    /**
     * Deprecated. Use `iconProps.className` instead.
     * @deprecated Use `iconProps.className` instead.
     */
    iconClassName?: string;
    /**
     * Props for an icon to render next to the link button.
     */
    iconProps?: IIconProps;
    /**
     * The name to use for functional automation tests
     */
    automationId?: string;
    /**
     * Whether or not the link is in an expanded state
     */
    isExpanded?: boolean;
    /**
     * Aria label for nav link. Ignored if `collapseAriaLabel` or `expandAriaLabel` is provided.
     */
    ariaLabel?: string;
    /**
     * Text for title tooltip and ARIA description.
     */
    title?: string;
    /**
     * Link <a> target.
     */
    target?: string;
    /**
     * Whether or not the link is disabled.
     */
    disabled?: boolean;
    /**
     * (Optional) By default, any link with onClick defined will render as a button.
     * Set this property to true to override that behavior. (Links without onClick defined
     * will render as anchors by default.)
     */
    forceAnchor?: boolean;
    /**
     * ARIA label when group is collapsed and can be expanded.
     */
    expandAriaLabel?: string;
    /**
     * ARIA label when group is collapsed and can be expanded.
     */
    collapseAriaLabel?: string;
    /**
     * (Optional) Any additional properties to apply to the rendered links.
     */
    [propertyName: string]: any;
}
/**
 * {@docCategory Nav}
 */
export interface INavStyleProps {
    /**
     * Accept theme prop.
     */
    theme: ITheme;
    /**
     * Accept custom classNames
     */
    className?: string;
    /**
     * is element on top boolean
     */
    isOnTop?: boolean;
    /**
     * is element a link boolean
     */
    isLink?: boolean;
    /**
     * is element disabled
     */
    isDisabled?: boolean;
    /**
     * is element a group boolean
     */
    isGroup?: boolean;
    /**
     * is element expanded boolean
     */
    isExpanded?: boolean;
    /**
     * is element selected boolean
     */
    isSelected?: boolean;
    /**
     * is button
     */
    isButtonEntry?: boolean;
    /**
     * Nav height value
     */
    navHeight?: number;
    /**
     * left padding value
     */
    leftPadding?: number;
    /**
     * left padding when expanded value
     */
    leftPaddingExpanded?: number;
    /**
     * right padding value
     */
    rightPadding?: number;
    /**
     * position value
     */
    position?: number;
    /**
     * Inherited from INavProps
     * A collection of link groups to display in the navigation bar
     */
    groups: INavLinkGroup[] | null;
}
/**
 * {@docCategory Nav}
 */
export interface INavStyles {
    /**
     * Style set for the root element.
     */
    root: IStyle;
    /**
     * Style set for the link text container div element.
     */
    linkText: IStyle;
    /**
     * Style set for the link element extending the
     * root style set for ActionButton component.
     */
    link: IStyle;
    /**
     * Style set for the composite link container div element
     */
    compositeLink: IStyle;
    /**
     * Style set for the chevron button inside the composite
     * link and group elements.
     */
    chevronButton: IStyle;
    /**
     * Style set for the chevron icon inside the composite
     * link and group elements.
     */
    chevronIcon: IStyle;
    /**
     * Style set for the nav links ul element.
     */
    navItems: IStyle;
    /**
     * Style set for the nav links li element.
     */
    navItem: IStyle;
    /**
     * Style set for the group root div.
     */
    group: IStyle;
    /**
     * Style set for the group content div inside group.
     */
    groupContent: IStyle;
}
