import * as React from 'react';
import { IContextualMenuItem } from '../../ContextualMenu';
import { IButtonStyles, IButtonProps } from '../../Button';
import { ICommandBarData } from './CommandBar.base';
import { IStyle, ITheme } from '../../Styling';
import { IRefObject, IStyleFunctionOrObject, IComponentAs } from '../../Utilities';
import { ITooltipHostProps } from '../../Tooltip';
/**
 * {@docCategory CommandBar}
 */
export interface ICommandBar {
    /**
     * Sets focus to the active command in the list.
     */
    focus(): void;
    /**
     * Remeasures the available space.
     */
    remeasure(): void;
}
/**
 * {@docCategory CommandBar}
 */
export interface ICommandBarProps extends React.HTMLAttributes<HTMLDivElement> {
    /**
     * Optional callback to access the ICommandBar interface. Use this instead of ref for accessing
     * the public methods and properties of the component.
     */
    componentRef?: IRefObject<ICommandBar>;
    /**
     * Items to render. ICommandBarItemProps extends IContextualMenuItem.
     */
    items: ICommandBarItemProps[];
    /**
     * Items to render on the right side (or left, in RTL). ICommandBarItemProps extends IContextualMenuItem.
     */
    farItems?: ICommandBarItemProps[];
    /**
     * Default items to have in the overflow menu. ICommandBarItemProps extends IContextualMenuItem.
     */
    overflowItems?: ICommandBarItemProps[];
    /**
     * Props to be passed to overflow button.
     * If `menuProps` are passed through this prop, any items provided will be prepended to any
     * computed overflow items.
     */
    overflowButtonProps?: IButtonProps;
    /**
     * Custom component for the overflow button.
     */
    overflowButtonAs?: IComponentAs<IButtonProps>;
    /**
     * Custom component for the near and far item buttons. Not used for overflow menu items.
     */
    buttonAs?: IComponentAs<IButtonProps>;
    /**
     * When true, items will be 'shifted' off the front of the array when reduced, and unshifted during grow.
     */
    shiftOnReduce?: boolean;
    /**
     * Custom function to reduce data if items do not fit in given space.
     * Return `undefined` if no more steps can be taken to avoid infinate loop.
     */
    onReduceData?: (data: ICommandBarData) => ICommandBarData | undefined;
    /**
     * Custom function to grow data if items are too small for the given space.
     * Return `undefined` if no more steps can be taken to avoid infinate loop.
     */
    onGrowData?: (data: ICommandBarData) => ICommandBarData | undefined;
    /**
     * Callback invoked when data has been reduced.
     */
    onDataReduced?: (movedItem: ICommandBarItemProps) => void;
    /**
     * Callback invoked when data has been grown.
     */
    onDataGrown?: (movedItem: ICommandBarItemProps) => void;
    /**
     * Function to be called every time data is rendered. It provides the data that was actually rendered.
     * A use case would be adding telemetry when a particular control is shown in an overflow or dropped
     * as a result of `onReduceData`, or to count the number of renders that an implementation of
     * `onReduceData` triggers.
     */
    dataDidRender?: (renderedData: any) => void;
    /**
     * Additional css class to apply to the command bar
     */
    className?: string;
    /**
     * Accessibility text to be read by the screen reader when the user's
     * focus enters the command bar. The screen reader will read this text
     * after reading information about the first focusable item in the command bar.
     */
    ariaLabel?: string;
    /**
     * Customized styling that will layer on top of the variant rules.
     */
    styles?: IStyleFunctionOrObject<ICommandBarStyleProps, ICommandBarStyles>;
    /**
     * Theme provided by HOC.
     */
    theme?: ITheme;
}
/**
 * ICommandBarItemProps extends IContextualMenuItem and adds a few CommandBar-specific props.
 * {@docCategory CommandBar}
 */
export interface ICommandBarItemProps extends IContextualMenuItem {
    /**
     * Show only an icon for this item, not text.
     * Does not apply if item is in the overflow.
     * @defaultvalue false
     */
    iconOnly?: boolean;
    /**
     * Props for the tooltip when in `iconOnly` mode.
     */
    tooltipHostProps?: ITooltipHostProps;
    /**
     * Custom styles for individual button
     */
    buttonStyles?: IButtonStyles;
    /**
     * A custom cache key to be used for this item. If `cacheKey` is changed, the cache will invalidate.
     * Defaults to `key` value.
     */
    cacheKey?: string;
    /**
     * Context under which the item is being rendered.
     * This value is mutated by the CommandBar and is useful for adjusting the `onRender` function.
     */
    renderedInOverflow?: boolean;
    /**
     * Method to override the render of the individual command bar button.
     * Not used when item is rendered in overflow.
     * @defaultvalue CommandBarButton
     */
    commandBarButtonAs?: IComponentAs<ICommandBarItemProps>;
}
/**
 * {@docCategory CommandBar}
 */
export interface ICommandBarStyleProps {
    theme: ITheme;
    className?: string;
}
/**
 * {@docCategory CommandBar}
 */
export interface ICommandBarStyles {
    root?: IStyle;
    primarySet?: IStyle;
    secondarySet?: IStyle;
}
