import { PositioningShorthandValues } from "@horizon-msft/web-components";
import { FASTElement } from "@microsoft/fast-element";
import { AnchorTarget } from "@microsoft/fast-foundation";
/**
 * # Citation
 *
 * Citation gives context to references. It's an actionable (clickable) element that can reveal a popover with information pertaining to the reference.
 *
 * ```html
 * <fabric-citation show="true" href="https://bing.com">
 *   <span slot="index">${x => x.index}</span>
 * </fabric-citation>
 * ```
 */
export declare class Citation extends FASTElement {
    constructor();
    /**
     * ## index
     *
     * Index to display in ui for citation number
     */
    index?: number;
    /**
     * ## indexReference
     *
     * a reference to the slotted index element
     */
    indexReference?: Array<HTMLElement>;
    indexReferenceChanged(): void;
    /**
     * ## size
     *
     * Controls the size of the popover, popover padding, and size of beak.
     */
    size?: "small" | "medium" | "large";
    /**
     * ## href
     *
     * For the link to the citation reference
     */
    href?: string;
    /**
     * ## popoverPlacement
     *
     * Sets the location of the popover when user hovers over citation
     */
    popoverPosition: PositioningShorthandValues;
    /**
     * # popoverContent
     *
     * The content which is rendered inside of the popover
     */
    popoverContent: HTMLElement[];
    /**
     * # popoverContentChanged
     *
     * Sets hasPopover to true when there is content. When there is no popover content the citation should not allow popover to open.
     */
    popoverContentChanged(): void;
    /**
     * # hasPopover
     *
     * Controls whether the popover is openable/showable
     */
    hasPopover: boolean;
    /**
     * # show
     *
     * shows popover when set to true
     */
    show?: boolean;
    target: AnchorTarget;
    popoverReference: any | undefined;
    popoverReferenceChanged(): void;
    private mouseInPopover;
    /**
     * # handleHoverEnter
     *
     * handler for popover showing
     * @param event
     */
    handleHoverEnter(): void;
    /**
     * # handleHoverLeave
     *
     * handler for popover hiding
     * @param event
     */
    handleHoverLeave: () => void;
    /**
     *  # handleKeyboardEvents
     */
    handleKeyEvents(event: KeyboardEvent): void;
    /**
     * # handlePopoverEnter
     */
    handlePopoverEnter: () => void;
    /**
     * # handlePopoverLeave
     */
    handlePopoverLeave: () => void;
    /**
     * # addMouseOverEventListeners
     */
    addMouseOverEventListeners: () => void;
    /**
     * # removeMouseOverEventListeners
     */
    removeMouseOverEventListeners(): void;
    addKeyboardEventListeners(): void;
    removeKeyboardEventListeners(): void;
    connectedCallback(): void;
    disconnectedCallback(): void;
}
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